CN206244955U - One kind production air bag eight device for spinning of silk - Google Patents
One kind production air bag eight device for spinning of silk Download PDFInfo
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- CN206244955U CN206244955U CN201621289150.XU CN201621289150U CN206244955U CN 206244955 U CN206244955 U CN 206244955U CN 201621289150 U CN201621289150 U CN 201621289150U CN 206244955 U CN206244955 U CN 206244955U
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Abstract
One kind production air bag eight device for spinning of silk,Drying tower including drying thickening section,The filament spinning component of spinning,The hot-rolling component of drawing and setting and the coiler device of winding tow,Filament spinning component is included screw extruder,2 Sets of Measurement devices,Dual stage filter apparatus and spinning cavity,Hot-rolling component includes 6 pairs of hot-rollings,Coiler device includes 1 frame and 8 sets of sub-wire winding assemblies,The utility model uses a kind of special screw extruder,Measured using two measuring pumps after melt extrusion,Each measuring pump sets four outlets,Eight filament spinning components are installed altogether and form eight special spinning winder windings,Winding unit winding efficiency is spun than conventional four-head to double,Reduce outage simultaneously,Substantially increase the yield of tow,It is excessive that the equipment that the single position tow number increase of solution causes installs floor space,The tow difference that operating difficulties is caused is big,The low problem of efficiency.
Description
Technical field
The utility model is related to spinning field, and in particular to one kind production air bag eight device for spinning of silk.
Background technology
At present, the industrial yarn of polyamide fibre 66 is due to high intensity, small unit mass, endurance, shock resistance, dimensional stability
It is good, the features such as rub resistance is easy to process, be widely used in the automobile industries such as tire, safe automobile air bag, parachute, tarpaulin,
The textiles such as sweat shirt aspect, market prospects are very wide.When being such as applied to air bag, when there is car accident, dynamic
Under load, when the local pressure in air bag interior band and surrounding gap peaks pressure be sent to fabric face, it is necessary to
Polyamide Yarns has the excellent properties that modulus is low, elongation is big, so as to protect the fabric will not to be damaged.
But the enterprise of the air bag silk of existing use PA66 sections production both at home and abroad, use is that two and four-head spin and set
Standby, production yields is low, the cycle is long, and cost is high, due to the technology restriction of spinning technique, hot-rolling length and moment of torsion, existing 4
Head spinning equipment cannot increase a number, especially domestic still without any section enterprise to there is ability and qualification possess air bag silk 8
Head spinning equipment and process program, restrict the development in China's air bag silk market and go to the world, therefore use the air bag of external production
The technique that therefore development in the serious restriction China air bag silk market of silk matches therewith does not meet the national conditions of China and long-range rule
Draw.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of production air bag eight device for spinning of silk, the dress
Put using eight spinning equipments and technique, winding efficiency is high 1 times, while reducing outage, substantially increases the yield of tow, by
The like product of the performance better than in the market of air bag silk prepared by the device.
The technical scheme that the utility model is used is：A kind of production air bag eight device for spinning of silk, including dry increasing
The drying tower of viscous section, the filament spinning component of spinning, the hot-rolling component of drawing and setting and the coiler device of winding tow；
Described filament spinning component includes being carried out by the screw extruder of raw materials melt of cutting into slices, to melt the metering of accurate distribution
Device, the filter and spinning cavity that eliminate impurity in melt, are squeezed from drying tower section out by pipeline to screw rod
Press, described screw extruder is provided with a housing, and housing is formed around heat-insulation layer, and screw rod, housing are provided with case entrances
It is the heating zone of screw rod intensification to be inside provided with multiple, and the housing wall of described heating zone is provided with heater；
Described metering device has 2 groups, and every group includes static mixer, reductor and 4 measuring pumps, from screw extruding
After the melt that machine is sent out first is mixed through static mixer, then 8 measuring pumps are delivered to, measuring pump is connected by pipe-and-filter
Connect, the melt inflow filter after accurately being distributed through measuring pump is filtered；
Described filter includes first level filtering device and two-stage filter, and first level filtering device is located under measuring pump
Side, including a housing, are provided with air port on housing wall, housing is externally provided with exhausting system and dust collecting system, from measuring pump outflow
Melt suction filtration is carried out in housing, two-stage filter is provided with 8 corresponding with measuring pump below first level filtering device
Cylinder, each cylinder includes metal sand, multistorey strainer mesh and spinneret, and metal sand is evenly distributed on every metafiltration on the net, and spinneret is close
It is enclosed in cylinder body bottom；
Described spinning cavity is located at spinneret lower section, corresponding with metering device to be provided with 2, each spinning cavity
Air outlet and blowing device are uniformly provided with the wall of side, cavity bottom is correspondingly provided with 4 spinning outlets；
Described hot-rolling component is arranged on filament spinning component lower section, including 6 pairs of hot-rollings and 2 pairs of oiling rollers, is hung down from spinning outlet
Under tow first pass through oiling roller and oil, then through 6 pairs of hot-rolling drawing and settings, 6 pairs of established angles of hot-rolling in described hot-rolling component
Spend and be：First pair of hot-rolling is located at oiling roller lower section, and the tow and the angle of horizontal plane to being wound on roller are 100 ~ 130 °, second pair
Hot-rolling is located at first pair of lower section of hot-rolling, and tow and the angle of horizontal plane to being wound on roller are 20 ~ 40 °, the 3rd pair of hot-rolling position
In second pair of side of hot-rolling, tow and the angle of horizontal plane to being wound on roller are 0 ~ 10 °, and the 4th pair of hot-rolling is located at the 3rd pair
The top of hot-rolling, the angle of tow and horizontal plane to being wound on roller is 0 ~ 10 °, and the 5th pair of hot-rolling is located at the upper of the 4th pair of hot-rolling
Side, tow and the angle of horizontal plane to being wound on roller are 50 ~ 80 °, and the 6th pair of hot-rolling is arranged on oiling roller and the 5th pair of hot-rolling
Between, and be in specular with the 5th pair of hot-rolling；
Described coiler device is arranged on hot-rolling component lower section, including 1 frame and 8 sets of sub-wire winding assemblies, described
Sub-wire winding assembly includes thread eye, silk groove, chuck and paper web, and 8 tow stretched through hot-rolling are carried out respectively by thread eye
Winding.
Preferably, 5 heating zones are divided into described screw extruder housing, the 1st hot zone cap is provided with section original
Material entrance and additive entrance, bottom is provided with sample tap.
Preferably, it is provided with heat-insulation layer in the connecting pipe between described static mixer and measuring pump.
Preferably, filter screen is provided with 2 ~ 6 layers altogether in described two-stage filter.
Preferably, described spinneret is provided with spinneret orifice, and the hole count of setting is in 36 or 72 or 104
Kind.
Preferably, the side of described spinning cavity is provided with the observation door for observing tow state.
Preferably, in described hot-rolling component, the surface of each pair hot-rolling is provided with ceramic coating, second pair to the 5th pair hot-rolling
Outside is provided with the thermal-insulating body of insulation.
The beneficial effects of the utility model are：
（1）Shaped using six pairs of roller stretchings：The utility model uses six pairs of roller filament spinning components, preceding four pairs of hot-rolling heat stepwises
Control, makes tow be heated evenly, and two pairs of hot-rollings carry out cooling reinforcing to tow afterwards, has prepared industrial yarn relatively low
Shrinkage factor and intensity higher；Roll surface used is ceramic material, roll surface smoother, and electrical insulating property is good, make tow with heat
Roller roll surface contact when will not produce electrostatic friction, with less tension force, it is ensured that tow it is bright and clean tough；
（2）Using eight spinning winding components：The utility model uses a kind of special screw extruder, in melt extrusion
Measured using two measuring pumps afterwards, each measuring pump sets four outlets, eight filament spinning components are installed altogether and form special
Eight spinning winder windings, spin winding unit winding efficiency and double than conventional four-head, while reducing outage, greatly improve
The yield of tow, solves the equipment that single position tow number increase causes and installs that floor space is excessive, operating difficulties is caused
The problem that tow difference is big, efficiency is low；
（3）Using dual stage filter apparatus：The utility model removes the impurity in melt using double-filtration method, makes to melt
Body is pure, impurity is few, and the first order is the filter being made up of exhausting system and dust collecting system, and gel particles are often contained in melt
Son and high polymer melt impurity, make it that spinneret orifice is easily blocked when being sprayed by spinneret, or are ruptured in drawing process and make
Strand breaks produces the silk that floats, so as to increase spinning break rate, exhausting system can carry out suction filtration to the little particle in melt, removal
Partial impurities, reduce spinning break；The second level is the filter that metal sand and multistorey strainer mesh are constituted, compared with sea sand, metal
Sand has good performance：Voidage is high, and surface area is big, good heat conduction effect, and the acute angle and projection of sand are easy to catch mentions melt
In foreign matter and shearing melt gel, to melt serve filtering and microcell high shear combing effect, filter screen remove to metal sand
Play that support is outer, the pressure of melt is served homogenize within the specific limits, melt is uniformly extruded spinneret micropore；This practicality is new
Double-filtration method in type, avoids blocking spinneret orifice to a certain extent, reduces because metal sand asymmetric shockses cause pressure
Uneven phenomenon, the problems such as reduce energy consumption, verified through actual production, can using the replacement cycle of the utility model filter
More than 25 days are extended to, one times is increased than existing filter, improve the quality and production efficiency of final spinning.
Brief description of the drawings
Accompanying drawing described herein is used for providing being further understood to of the present utility model, constitutes the part of the application,
Do not constitute to improper restriction of the present utility model.
Fig. 1 is the utility model production air bag eight structural representations of device for spinning of silk.
Fig. 2 is the structural representation of the utility model filter.
Fig. 3 is the structural representation of the utility model spinning cavity.
Reference：1st, feed bin, 2, drying tower, 201, nitrogen compression pump, 3, screw extruder, 301, section entrance,
302nd, additive entrance, 303, sample tap, 4, static mixer, 5, measuring pump, 6, first level filtering device, 601, air port, 602,
Exhausting system, 603, dust collecting system, 7, two-stage filter, 701, filter screen, 702, metal sand, 703, spinneret, 8, spinning chamber
Body, 801, observation door, 802, air outlet, 9, oiling roller, 10, first pair of hot-rolling, 11, second pair of hot-rolling, the 12, the 3rd pair of hot-rolling,
13rd, the 4th pair of hot-rolling, the 14, the 5th pair of hot-rolling, the 15, the 6th pair of hot-rolling, 16, thermal-insulating body, 17, frame, 18, thread eye.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
The embodiment of type is clearly and completely described to technical scheme.
Implementation method：
One kind production air bag eight device for spinning of silk, including the drying tower of thickening section is dried, the filament spinning component of spinning,
The hot-rolling component of drawing and setting and the coiler device of winding tow,
Described filament spinning component includes being carried out by the screw extruder 3 of raw materials melt of cutting into slices, to melt the meter of accurate distribution
Amount device, the filter, the spinning cavity 8 that eliminate impurity in melt, from the section out of drying tower 2 by pipeline to screw rod
Extruder 3, described screw extruder 3 is provided with a housing, and housing is formed around heat-insulation layer, screw rod is provided with case entrances
304, it is the heating zone 305 of screw rod intensification to be provided with housing multiple, and the housing wall of described heating zone is provided with heater；
Described metering device has 2 groups, and every group includes static mixer 4, reductor and 4 measuring pumps 5, is squeezed from screw rod
After the melt that press 3 is sent out first is mixed through static mixer 4, then 8 measuring pumps 5 are delivered to, measuring pump 5 is by pipeline and filtering
Device is connected, and is filtered through the melt inflow filter after measuring pump 5 accurately distribution；
Described filter includes first level filtering device 6 and two-stage filter 7, and first level filtering device 6 is located at measuring pump 5
Lower section, including a housing, are provided with air port 601 on housing wall, housing is externally provided with exhausting system 602 and dust collecting system 603, from
The melt of the outflow of measuring pump 5 carries out suction filtration in housing, and two-stage filter 7 is provided with and metering below first level filtering device 6
8 corresponding cylinders of pump 5, each cylinder includes metal sand 702, multistorey strainer mesh 701 and spinneret 703, and metal sand 702 is uniform
It is distributed on every metafiltration net 701, spinneret 703 is sealed in cylinder body bottom；
Described spinning cavity 8 is located at the lower section of spinneret 703, corresponding with metering device to be provided with 2, each spinning chamber
Air outlet 802 and blowing device are uniformly provided with the side wall of body 8, cavity bottom is correspondingly provided with 4 spinning outlets；
Described hot-rolling component is arranged on filament spinning component lower section, including 6 pairs of hot-rollings and 2 pairs of oiling rollers 10, from spinning outlet
The tow for hanging down first passes through oiling roller 10 and oils, then through 6 pairs of hot-rolling drawing and settings, 6 pairs of peaces of hot-rolling in described hot-rolling component
Filling angle is：First pair of hot-rolling 10 is located at the lower section of oiling roller 9, and the tow and the angle of horizontal plane to being wound on roller are 130 °, the
Two pairs of hot-rollings 11 are located at first pair of lower section of hot-rolling 10, and the tow and the angle of horizontal plane to being wound on roller are 40 °, the 3rd pair of heat
Roller 12 is located at second pair of side of hot-rolling 11, and the tow and the angle of horizontal plane to being wound on roller are 10 °, the 4th pair of hot-rolling 13
In the 3rd pair of top of hot-rolling 12, tow and the angle of horizontal plane to being wound on roller are 10 °, and the 5th pair of hot-rolling 14 is located at the 4th
To the top of hot-rolling 13, tow and the angle of horizontal plane to being wound on roller are 50 °, and the 6th pair of hot-rolling 15 is arranged on oiling roller 9
Between the 5th pair of hot-rolling 14, and it is in specular with the 5th pair of hot-rolling 14；
Described coiler device is arranged on hot-rolling component lower section, including 1 frame 17 and 8 sets of sub-wire winding assemblies, described
Sub-wire winding assembly include thread eye 18, silk groove, chuck and paper web, 8 tow stretched through hot-rolling are by 18 points of thread eye
It is not wound;
Preferably, 5 heating zones 305 are divided into described screw extruder housing, the 1st hot zone cap is provided with section
Feed(raw material)inlet 301 and additive entrance 302, bottom is provided with sample tap 303;
Preferably, heat-insulation layer is provided with the connecting pipe between described static mixer 4 and measuring pump 5;
Preferably, filter screen 701 is provided with 4 layers altogether in described two-stage filter 7;
Preferably, described spinneret 703 is provided with spinneret orifice, and the hole count of setting is 36;
Preferably, the side of described spinning cavity 8 is provided with the observation door 801 for observing tow state;
Preferably, in described hot-rolling component, the surface of each pair hot-rolling is provided with ceramic coating, second pair to the 5th pair hot-rolling
Outside is provided with the thermal-insulating body 16 of insulation.
As described above, can be adjusted to for the setting angle of 6 pairs of hot-rollings in hot-rolling component by those skilled in the art：First pair of heat
Roller 10 is located at the lower section of oiling roller 9, and tow and the angle of horizontal plane to being wound on roller are 100 °, and second pair of hot-rolling 11 is located at first
To the lower section of hot-rolling 10, tow and the angle of horizontal plane to being wound on roller are 10 °, and the 3rd pair of hot-rolling 12 is located at second pair of hot-rolling
11 side, the angle of tow and horizontal plane to being wound on roller is 0 °, and the 4th pair of hot-rolling 13 is located at the upper of the 3rd pair of hot-rolling 12
Side, tow and the angle of horizontal plane to being wound on roller are 0 °, and the 5th pair of hot-rolling 14 is located at the 4th pair of top of hot-rolling 13, to roller
The tow of upper winding is 80 ° with the angle of horizontal plane, and the 6th pair of hot-rolling 15 is arranged between oiling roller 9 and the 5th pair of hot-rolling 14,
And with the 5th pair of hot-rolling 14 in specular.
As described above, can be adjusted to for the setting angle of 6 pairs of hot-rollings in hot-rolling component by those skilled in the art：First pair of heat
Roller 10 is located at the lower section of oiling roller 9, and tow and the angle of horizontal plane to being wound on roller are 115 °, and second pair of hot-rolling 11 is located at first
To the lower section of hot-rolling 10, tow and the angle of horizontal plane to being wound on roller are 25 °, and the 3rd pair of hot-rolling 12 is located at second pair of hot-rolling
11 side, the angle of tow and horizontal plane to being wound on roller is 5 °, and the 4th pair of hot-rolling 13 is located at the upper of the 3rd pair of hot-rolling 12
Side, tow and the angle of horizontal plane to being wound on roller are 5 °, and the 5th pair of hot-rolling 14 is located at the 4th pair of top of hot-rolling 13, to roller
The tow of upper winding is 65 ° with the angle of horizontal plane, and the 6th pair of hot-rolling 15 is arranged between oiling roller 9 and the 5th pair of hot-rolling 14,
And with the 5th pair of hot-rolling 14 in specular.
As described above, filter screen 701 in two-stage filter 7 can be set to 2 layers by those skilled in the art.
As described above, filter screen 701 in two-stage filter 7 can be set to 6 layers by those skilled in the art.
As described above, spinneret 703 can be replaced by those skilled in the art the spinneret for setting that hole count is 72.
As described above, spinneret 703 can be replaced by those skilled in the art the spinneret for setting that hole count is 104.
Embodiments described above is a part of embodiment of the present utility model, rather than whole embodiments.It is based on
Described embodiment of the present utility model, what those of ordinary skill in the art were obtained on the premise of without creative work
Every other embodiment, belongs to the scope of the utility model protection.
Claims (7)
1. a kind of production air bag eight device for spinning of silk, including the drying tower for drying thickening section（2）, the spinning group of spinning
Part, the hot-rolling component of drawing and setting and the coiler device of winding tow, it is characterised in that
Described filament spinning component is included the screw extruder of raw materials melt of cutting into slices（3）, carry out to melt the metering of accurate distribution
Device, the filter and spinning cavity that eliminate impurity in melt（8）, from drying tower section out by pipeline to screw rod
Extruder（3）, described screw extruder is provided with a housing, and housing is formed around heat-insulation layer, screw rod is provided with case entrances
（304）, it is the heating zone of screw rod intensification to be provided with housing multiple（305）, the housing wall of described heating zone is provided with heating dress
Put；
Described metering device has 2 groups, and every group includes static mixer（4）, reductor and 4 measuring pumps（5）, squeezed from screw rod
Press（3）The melt of submitting is first through static mixer（4）After mixing, then it is delivered to 8 measuring pumps（5）, measuring pump is by pipeline
It is connected with filter, the melt inflow filter after accurately being distributed through measuring pump is filtered；
Described filter includes first level filtering device（6）And two-stage filter（7）, first level filtering device（6）It is located at metering
Pump（5）Lower section, including a housing, are provided with air port on housing wall（601）, housing is externally provided with exhausting system（602）With gather dust
System（603）, from measuring pump（5）The melt of outflow carries out suction filtration, two-stage filter in housing（7）In first level filtering device
（6）Lower section, is provided with and measuring pump（5）8 corresponding cylinders, each cylinder includes metal sand（702）, multistorey strainer mesh（701）
And spinneret（703）, metal sand（702）It is evenly distributed on every metafiltration net（701）On, spinneret（703）It is sealed in cylinder body bottom；
Described spinning cavity（8）It is located at spinneret（703）Lower section, corresponding with metering device to be provided with 2, each spinning chamber
Air outlet is uniformly provided with the side wall of body（802）And blowing device, cavity bottom is correspondingly provided with 4 spinning outlet；
Described hot-rolling component is arranged on filament spinning component lower section, including 6 pairs of hot-rollings and 2 pairs of oiling rollers（9）, hung down from spinning outlet
Tow first pass through oiling roller（9）Oil, then through 6 pairs of hot-rolling drawing and settings, 6 pairs of established angles of hot-rolling in described hot-rolling component
Spend and be：First pair of hot-rolling（10）Positioned at oiling roller（9）Lower section, to the angle of the tow and the horizontal plane that are wound on roller for 100 ~
130 °, second pair of hot-rolling（11）Positioned at first pair of hot-rolling（10）Lower section, on roller wind tow be with the angle of horizontal plane
20 ~ 40 °, the 3rd pair of hot-rolling（12）Positioned at second pair of hot-rolling（11）Side, the angle of tow and horizontal plane to being wound on roller
It is 0 ~ 10 °, the 4th pair of hot-rolling（13）Positioned at the 3rd pair of hot-rolling（12）Top, the angle of tow and horizontal plane to being wound on roller
It is 0 ~ 10 °, the 5th pair of hot-rolling（14）Positioned at the 4th pair of hot-rolling（13）Top, the angle of tow and horizontal plane to being wound on roller
It is 50 ~ 80 °, the 6th pair of hot-rolling（15）Installed in oiling roller（9）With the 5th pair of hot-rolling（14）Between, and with the 5th pair of hot-rolling（14）
In specular；
Described coiler device is arranged on hot-rolling component lower section, including 1 frame（17）With 8 sets of sub-wire winding assemblies, it is described
Sub-wire winding assembly includes thread eye（18）, silk groove, chuck and paper web, 8 tow stretched through hot-rolling are by thread eye（18）
It is wound respectively.
2. a kind of production as claimed in claim 1 uses air bag eight device for spinning of silk, it is characterised in that described screw extruding
It is divided into 5 heating zones in casing body（305）, the 1st hot zone cap be provided with section feed(raw material)inlet（301）With additive entrance
（302）, bottom is provided with sample tap（303）.
3. a kind of production as claimed in claim 1 uses air bag eight device for spinning of silk, it is characterised in that described static mixing
Device（4）And measuring pump（5）Between connecting pipe in be provided with heat-insulation layer.
4. a kind of production as claimed in claim 1 uses air bag eight device for spinning of silk, it is characterised in that described cascade filtration
Device（7）Middle filter screen（701）2 ~ 6 layers are provided with altogether.
5. a kind of production as claimed in claim 1 uses air bag eight device for spinning of silk, it is characterised in that described spinneret
（703）Spinneret orifice is provided with, the hole count of setting is the one kind in 36 or 72 or 104.
6. a kind of production as claimed in claim 1 uses air bag eight device for spinning of silk, it is characterised in that described spinning cavity
（8）Side be provided with for observe tow state observation door（801）.
7. a kind of production as claimed in claim 1 uses air bag eight device for spinning of silk, it is characterised in that described hot-rolling component
In, the surface of each pair hot-rolling is provided with ceramic coating, and the thermal-insulating body of insulation is provided with outside second pair to the 5th pair hot-rolling（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621289150.XU CN206244955U (en) | 2016-11-29 | 2016-11-29 | One kind production air bag eight device for spinning of silk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621289150.XU CN206244955U (en) | 2016-11-29 | 2016-11-29 | One kind production air bag eight device for spinning of silk |
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| Publication Number | Publication Date |
|---|---|
| CN206244955U true CN206244955U (en) | 2017-06-13 |
Family
ID=59001075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621289150.XU Active CN206244955U (en) | 2016-11-29 | 2016-11-29 | One kind production air bag eight device for spinning of silk |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938006A (en) * | 2017-12-06 | 2018-04-20 | 苏州金纬化纤工程技术有限公司 | Melt spinning machine |
| CN109537079A (en) * | 2019-01-29 | 2019-03-29 | 绍兴山海纺织有限公司 | A kind of production equipment of dacron thread |
| CN113403702A (en) * | 2021-06-16 | 2021-09-17 | 福建闽瑞新合纤股份有限公司 | Multi-section high-end composite fiber drawing mechanism |
| CN113564738A (en) * | 2021-08-19 | 2021-10-29 | 泰安现代塑料有限公司 | Spinning drafting device and polypropylene fiber geotextile production line |
-
2016
- 2016-11-29 CN CN201621289150.XU patent/CN206244955U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938006A (en) * | 2017-12-06 | 2018-04-20 | 苏州金纬化纤工程技术有限公司 | Melt spinning machine |
| CN109537079A (en) * | 2019-01-29 | 2019-03-29 | 绍兴山海纺织有限公司 | A kind of production equipment of dacron thread |
| CN109537079B (en) * | 2019-01-29 | 2024-01-19 | 绍兴山海纺织有限公司 | Production equipment of polyester yarns |
| CN113403702A (en) * | 2021-06-16 | 2021-09-17 | 福建闽瑞新合纤股份有限公司 | Multi-section high-end composite fiber drawing mechanism |
| CN113564738A (en) * | 2021-08-19 | 2021-10-29 | 泰安现代塑料有限公司 | Spinning drafting device and polypropylene fiber geotextile production line |
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