CN2483399Y - Co-extruding apparatus for melting spun polyurethane and cross-linked agent - Google Patents
Co-extruding apparatus for melting spun polyurethane and cross-linked agent Download PDFInfo
- Publication number
- CN2483399Y CN2483399Y CN 01242171 CN01242171U CN2483399Y CN 2483399 Y CN2483399 Y CN 2483399Y CN 01242171 CN01242171 CN 01242171 CN 01242171 U CN01242171 U CN 01242171U CN 2483399 Y CN2483399 Y CN 2483399Y
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- polyurethane
- crosslinking agent
- screw rod
- melt
- mixing
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- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Artificial Filaments (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Disclosed is a mixing and extrusion device for polyurethane and crosslink agent preparing polyurethane elastic fiber by melting method. The device is designed for polyurethane crosslink effectively with the crosslink agent. The device comprises a polyurethane inlet, a melting screw extrusion device, a mixing transporting pump and a spinning box. The screw that the melting screw extrusion device is used is twin-screw, the inlet for crosslink agent is arranged on the screw sleeve and a static mixer is arranged between the mixing transporting pump and the spinning box. The utility model finishes the mixture of polyurethane and the crosslink agent in the process of the output of polyurethane melt. The crosslink efficiency is high, the production process is normal and stable, is easy to operate and control.
Description
The utility model belongs to a kind of polyurethane of polyurethane elastomeric fiber and extrusion device that mixes of crosslinking agent of preparing with fusion method.
The method of existing manufacturing polyurethane elastomeric fiber has dry spinning, wet spinning, chemical reaction method spinning and melt spinning etc., in these methods, melt spinning has advantages such as small investment, production cost are low, environmental protection, is the current method that development potentiality is arranged most.In the fusion method spinning, how in the polyurethane melt, to add crosslinking agent effectively, and evenly mix, make crosslinking agent and the big molecule of polyurethane melt full cross-linked, most important to fracture strength, elastic recovery rate, modulus and the heat resistance of further raising polyurethane elastomeric fiber.At present, crosslinking agent generally has two kinds with the method for mixing of polyurethane melt, a kind of is that afterbody at single screw rod melt extrusion apparatus adds crosslinking agent in the melt pipe with pump to the melt pipe between the spinning manifold, mix the back spinning, but the mixed effect of this device is not ideal enough, crosslinked insufficient, cause indexs such as fracture strength, elastic recovery rate, modulus and the heat resistance variation of polyurethane elastomeric fiber bigger, spinning is difficult to normal stable carrying out.Another kind method be with polyurethane mix with crosslinking agent crosslinked after, send into the screw rod melt extrusion apparatus again, advance spinning manifold again, carry out spinning, but complex process, not easy operation control.
The purpose of this utility model is to address the above problem, a kind of simple in structure, easy operation control is provided, can make effectively polyurethane melt and crosslinking agent full and uniformly mix, efficiently crosslinked, produce normal, stability is high, the polyurethane melt is finished continuously with crosslinking agent mix, crosslinked mixing extrusion device.
It includes the mixing delivery pump and the spinning manifold of polyurethane charging aperture, screw rod melt extrusion apparatus, screw rod melt extrusion apparatus afterbody the utility model, the screw rod of screw rod melt extrusion apparatus is a twin-screw, on the screw sleeve of screw rod melt extrusion apparatus, be provided with crosslinking agent and add inlet, between the mixing delivery pump of screw rod melt extrusion apparatus and spinning manifold, be provided with static mixer.
The utility model has been finished the mixing of polyurethane and crosslinking agent, crosslinked in the melt polyurethane output procedure, production process is continuous, mix, crosslinked efficient, stable fracture strength, elastic recovery rate, modulus and the heat resistance that has improved polyurethane elastomeric fiber, guarantee the normal and stable of fusion method polyurethane elastomeric fiber production process, and it is easy to operate, easy to control.
Fig. 1 is the utility model structural representation.
Fig. 2 is the A of Fig. 1---the A cutaway view.
The utility model will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, 2, it includes the mixing delivery pump 8 and the spinning manifold 12 of polyurethane charging aperture 2, screw rod melt extrusion apparatus 1, screw rod melt extrusion apparatus afterbody the utility model, the screw rod of screw rod melt extrusion apparatus 1 is a twin- screw 13,14, on the screw sleeve 4 of screw rod melt extrusion apparatus, be provided with crosslinking agent and add inlet 7, between the mixing delivery pump 8 of screw rod melt extrusion apparatus and spinning manifold 12, be provided with static mixer 10.
During production, place the polyurethane of loading hopper 3 to enter the screw rod melt extrusion apparatus by charging aperture 2, advance through twin- screw 13,14 extrusion moltens, the crosslinking agent that adds inlet 7 addings with crosslinking agent mixes, after the abundant kneading of twin-screw, shearing, mixing, extruding etc. dynamically mix, clamp-on mixing delivery pump 8 more equably and dynamically mix, compress laggardly to go into after static blender 10 carries out static mixing, enter spinning manifold 12 spinning.---dynamic---the mixing arrangements such as static state because the utility model adopted dynamically, make polyurethane melt and crosslinking agent mix, efficiently crosslinked, stable fracture strength, elastic recovery rate, modulus and the heat resistance that has improved polyurethane elastomeric fiber guaranteed the normal steady production of polyurethane elastomeric fiber.
The utility model enters the crosslinked polyurethane melt of spinning manifold, also can spinning after melt metering pump 11 carries out dynamic mixing weighing.
As shown in Figure 1, crosslinking agent adds the medium position of the screw sleeve 4 of inlet 7 between mixing delivery pump 8 and polyurethane charging aperture 2.Mix with crosslinking agent after making the abundant fusion of polyurethane, further improve cross-linking effect.
As shown in Figure 1, crosslinking agent adds inlet and 7 is provided with storage tank 5 and pumping installations 6.Make crosslinking agent can enter screw rod melt extrusion apparatus and polyurethane melt mixed in proportion equably.
As shown in Figure 1, be provided with multi-layer helical blade 9 in the static mixer.Crosslinked polyurethane melt is mixed through the blade cutting, further improve the uniformity of mixing.
Claims (4)
1, a kind of melt-spun polyurethane and crosslinking agent mixing extrusion device, it includes the mixing delivery pump and the spinning manifold of polyurethane charging aperture, screw rod melt extrusion apparatus, screw rod melt extrusion apparatus afterbody, the screw rod that it is characterized in that the screw rod melt extrusion apparatus is a twin-screw, on the screw sleeve of screw rod melt extrusion apparatus, be provided with crosslinking agent and add inlet, between the mixing delivery pump of screw rod melt extrusion apparatus and spinning manifold, be provided with static mixer.
2, melt-spun polyurethane according to claim 1 and crosslinking agent mixing extrusion device is characterized in that crosslinking agent adds inlet at the mixing delivery pump of screw rod melt extrusion apparatus and the medium position of the screw sleeve between the polyurethane charging aperture.
3, melt-spun polyurethane according to claim 1 and 2 and crosslinking agent mixing extrusion device is characterized in that crosslinking agent adds inlet and is provided with storage tank and pumping installations.
4, melt-spun polyurethane according to claim 1 and 2 and crosslinking agent mixing extrusion device is characterized in that being provided with in the static mixer multi-layer helical blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01242171 CN2483399Y (en) | 2001-06-15 | 2001-06-15 | Co-extruding apparatus for melting spun polyurethane and cross-linked agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01242171 CN2483399Y (en) | 2001-06-15 | 2001-06-15 | Co-extruding apparatus for melting spun polyurethane and cross-linked agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2483399Y true CN2483399Y (en) | 2002-03-27 |
Family
ID=33653991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01242171 Expired - Fee Related CN2483399Y (en) | 2001-06-15 | 2001-06-15 | Co-extruding apparatus for melting spun polyurethane and cross-linked agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2483399Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100537859C (en) * | 2003-07-16 | 2009-09-09 | 李绍光 | A kind of melt spinning method of making polyurethane elastomeric fiber |
| CN102120358A (en) * | 2010-12-14 | 2011-07-13 | 张家港市沃斯汀新材料研究所有限公司 | TPU (Thermoset Polyurethane) additive feeding device |
| CN102391452A (en) * | 2011-10-18 | 2012-03-28 | 江阴中绿化纤工艺技术有限公司 | Feeding pipe of reactor for continuous polymerization production of spandex |
| CN102408532A (en) * | 2011-10-18 | 2012-04-11 | 江阴中绿化纤工艺技术有限公司 | Reactor for spandex continuous polymerization production |
| CN101871456B (en) * | 2004-08-05 | 2012-06-27 | 因特菲斯有限公司 | Separation pump |
| CN102925992A (en) * | 2012-11-21 | 2013-02-13 | 吴江征明纺织有限公司 | Homogenizing structure for melt spinning |
| CN109629029A (en) * | 2018-12-21 | 2019-04-16 | 张家港市科达化纤有限公司 | A kind of production method of water repellent anti-pollution type METHOD FOR POLYPROPYLENE BCF long filament |
-
2001
- 2001-06-15 CN CN 01242171 patent/CN2483399Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100537859C (en) * | 2003-07-16 | 2009-09-09 | 李绍光 | A kind of melt spinning method of making polyurethane elastomeric fiber |
| CN101871456B (en) * | 2004-08-05 | 2012-06-27 | 因特菲斯有限公司 | Separation pump |
| CN102120358A (en) * | 2010-12-14 | 2011-07-13 | 张家港市沃斯汀新材料研究所有限公司 | TPU (Thermoset Polyurethane) additive feeding device |
| CN102391452A (en) * | 2011-10-18 | 2012-03-28 | 江阴中绿化纤工艺技术有限公司 | Feeding pipe of reactor for continuous polymerization production of spandex |
| CN102408532A (en) * | 2011-10-18 | 2012-04-11 | 江阴中绿化纤工艺技术有限公司 | Reactor for spandex continuous polymerization production |
| CN102925992A (en) * | 2012-11-21 | 2013-02-13 | 吴江征明纺织有限公司 | Homogenizing structure for melt spinning |
| CN109629029A (en) * | 2018-12-21 | 2019-04-16 | 张家港市科达化纤有限公司 | A kind of production method of water repellent anti-pollution type METHOD FOR POLYPROPYLENE BCF long filament |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |