CN104120498A - Silk drafting/drying device - Google Patents
Silk drafting/drying device Download PDFInfo
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- CN104120498A CN104120498A CN201410136432.5A CN201410136432A CN104120498A CN 104120498 A CN104120498 A CN 104120498A CN 201410136432 A CN201410136432 A CN 201410136432A CN 104120498 A CN104120498 A CN 104120498A
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Abstract
The invention relates to a silk drafting/drying device which comprises at least one pair of matched heat plates used for drying silk flock and a plurality of independently-driven drafting rollers used for drafting the silk flock. The drafting rollers are arranged at the interval position of the matched heat plates, the drafting rollers are of cylinder structures and divided into an upper row of drafting rollers and a lower row of drafting rollers, the two rows of drafting rollers are distributed in parallel and in a staggered mode, the pair of heat plates are the upper heat plate and the lower heat plate, rectangular teeth are arranged on each heat plate, and the rectangular teeth of the upper heat plate are staggered and meshed with the rectangular teeth of the lower heat plate. According to the silk drafting/drying device, a multi-roller drafting machine and a drafting hot box are integrally combined, and the equipment construction cost and the equipment occupancy are reduced. By means of liquid heat media, the defect that caloric content in heated air circulation is low is overcome, the interference to the silk flock is reduced, the temperature is even and stable, the steam concentration is improved, the drafting/drying efficiency and effect are improved, and the recycling load and the energy consumption are effectively reduced. According to need, the silk drafting/dry device can be used for drafting silk, can be used for drying silk and can achieve the purpose of drafting silk in a drying process. Furthermore, a plurality of silk draft/drying devices can be combined to be used.
Description
Technical field
The present invention relates to chemical fiber machinery field, especially relate to a kind of drawing-off/dry silk device, the function of integrated multi-roll drafting machine and drafting heat box.
Background technology
In the production process of chemical fibre, the drawing-off of silk is very important link with being dried, and such as terylene, the polypropylene fibre of molten spinning, has corresponding draft process and equipment; And the acrylic fibers that solution spins, viscose not only need drawing-off, but also relate to dry.With respect to conventional fibre, the requirement of the drawing-off of high-performance fiber and dry counter extensioin and drying equipment is more harsh, such as high-performance polyethylene fibres, need in dry link that the time of staying is long, equipment is airtight, air quantity is little so that dry completely, containing solvent gas do not leak, organic efficiency is high; In drafting process, need drawing machine rotating speed steadily, accurately, drafting heat box temperature is even, stable.For realizing above-mentioned technique needs, this field professional carries out a large amount of research, successfully develops the various equipment with feature, and is applied in practice is produced.
Such as the drying equipment using in production process of viscose fiber, for a pair of have each other that certain angle is arranged, diameter more greatly, long cylindrical hot-rolling, in the time that this rotates hot-rolling, silk can be walked thereon twist, and a few are dried.This equipment is mainly applicable to the dry of moisture silk, and the dry water vapour producing can not produce adverse effect to environment; If contain organic liquid in silk, need equipment to propose airtight requirement, this kind of equipment cannot be satisfied the demand.
In patent CN20098533Y, disclose a kind of perpendicular row drying box, utilized and lengthen distance between godet roller, increased the stroke of tow, utilized the hot blast of Wind Volume to be dried silk.Although this kind equipment efficiently solves the inhomogeneous problem of hot case internal temperature, use the hot air of Wind Volume, will cause the concentration of solvent vapour on the low side, be unfavorable for separation and the recovery in rear road, and further increase after godet roller quantity when this equipment, equipment size will increase, and the uniform distribution that causes wind is affected.
A kind of hot air drier is disclosed in patent CN101135535A, by extending distance between godet roller, increase tow stroke, but this invention has been used 2 motors to drag upper and lower 2 row's godet rollers, there is the problem of godet roller velocity deviation, and this hot case is still and adopts the hot blast of Wind Volume to be dried silk, be unfavorable for the recovery of solvent, there is the problem identical with aforementioned invention.
Be more than the roughly introduction about current fiber drying equipment, briefly explain again draft apparatus below.
In terylene is produced, use and most often with some, hot-rolling is realized to drawing-off, speed can reach thousands of ms/min, it is very fast that this kind of equipment is applicable to rate of deformation, and the macromolecular material that drafting tension is lower, such as the drawing-off of the conventional chemical fibres such as terylene POY filament, polypropylene fibre, polyamide fibre, and the drawing-off of staple fibre and high strength yarn need to be used multi-roll drafting machine and drafting heat box to be used in conjunction with.
Such as each hot case of a kind of high-module high-strength polyethylene fibre double air channel drafting that discloses in patent CN101144199A and patent CN201077870Y, use hot-air as heating agent, use blower fan directly silk to be heated by strong convection.This kind equipment time must be considered being uniformly distributed of wind in design, guarantee temperature evenly, also need the defect of considering that air heat content is very low simultaneously, therefore this kind equipment complex structure, and must being used in conjunction with drawing machine, such as seven roller drawing machines.At patent CN200710133409.0, CN200720042564.7, a kind of seven (five) roller drawing machines are all disclosed in CN200420049661.5, ensure the steady and accurate of its rotation from various structural designs, its use principle is to increase the frictional force to tow by multiple parallel drafting rollers, ensures that tow does not produce slip in the time of drawing-off.
Above-mentioned draft apparatus in use, is all at least one drawing machines of each configuration before and after drafting heat box, utilizes the speed difference of drawing machine, realizes the drawing-off to tow.The use principle of the hot case of this class and drawing machine does not all change, only to improve on design and level of processing, if need multiple tracks drawing-off in technique, tow is inevitably cooled in the time entering lower one drawing-off, and then it is heated to enter hot case, not only cause heat loss, and counter extensioin is unfavorable.
Especially it is worth mentioning that, in patent CN100379914C, disclose a kind of baking oven of drawing fibres at elevated temp, the difference of itself and aforesaid dry heat case maximum with baking oven in godet roller be drive, can drawing-off when dry to tow thereby can realize.But this hot case still uses Wind Volume Hot-blast Heating, in temperature homogeneity and tow is stablized to drawing-off all can exert an influence.
Given this present invention is proposed.
Summary of the invention
Object of the present invention is for overcoming the deficiencies in the prior art, a kind of drawing-off/dry silk device is provided, dexterously the multi-roll drafting machine in chemical fibre field and drafting heat box are combined as a whole, equipment manufacturing cost and floor space are reduced, use liquid heat medium, overcome the low defect of heat content that hot air circulation draw box exists, not only temperature is even, stable, and reduce the interference of wind to tow, in the time of dry tow, can significantly improve vapor concentration, drawing-off/drying efficiency and effect are improved, effectively reduce and reclaim load and energy consumption, can be according to technique needs, the present invention can be used for the drawing-off of silk, also can be used for the dry of silk, can in dry process, realize the drawing-off of silk, and many can be used in combination in the present invention.
In order to realize this object, the present invention adopts following technical scheme:
A kind of drawing-off/dry silk device, this device comprises the hot plate for dry tow that at least one pair of matches, and is arranged on the drawing roller for drawing-off tow of multiple drive at the interval of the hot plate matching.
Described drawing roller is cylindrical structural, point two rows, and two row's drawing roller are parallel staggered, and in same row's drawing roller, the centre-to-centre spacing of adjacent two drawing roller is more than or equal to 2 times of roller footpaths, preferably 2 times of roller footpaths; Described a pair of hot plate is divided into each one up and down, is provided with rectangular teeth on each, the interlaced engagement of rectangular teeth on upper and lower hot plate, and tooth centre-to-centre spacing is identical with drawing roller centre-to-centre spacing.
Described hot plate is the square tooth-shape structure of hollow, and on it, one end is provided with the heating agent import entering for heating agent, and the other end is provided with the heating agent outlet of discharging for heating agent, and the rectangular teeth engagement of two hot plates, leaves the passage passing through for tow between two rectangular teeths after engagement.
Described hot plate inside is the cavity identical with external surface shape, in cavity, each tooth root position of center line is equipped with deflector, deflector is rectangle, parallel with the flank of tooth, its width is identical with hot plate thickness, between the little 20mm～500mm of Length Ratio hot plate height of preferred deflector, the less 50mm～200mm of Length Ratio hot plate height of preferred deflector.
The described center line of adjacent two teeth groove of same hot plate and the tooth center line of another piece hot plate overlap, and between adjacent two flank of tooth of upper and lower two hot plates, distance is between 5mm～100mm, preferably between 10mm～50mm.
The interval at the teeth groove of described hot plate and rectangular teeth top is provided with drawing roller, and each drawing roller central point is on same hot plate two backlash center lines, its upper surface and wherein a hot plate tooth root distance are between 5mm～100mm, preferably between 10mm～50mm, its lower surface and an other hot plate tooth end face distance are between 5mm～500mm, preferably between 50mm～300mm.
On this device, be provided with the tow import entering for tow and the tow outlet of discharging for tow, in the inner region between tow import 500mm and tow outlet 500mm position of device, the each point temperature difference can be controlled in 2.0 DEG C, the temperature fluctuation of each point can be controlled in ± and 1.0 DEG C, the temperature fluctuation of preferred each point can be controlled in ± and 0.1 DEG C.
Described this device tow import and tow exit position are provided with air inlet around, and this device middle part is provided with air entry.
Described heating agent is liquid heat medium, and described heating agent time of staying in hot plate cavity is less than or equal to 5min, is preferably less than or equal to 2min, is more preferably less than or equal to 45s.
This device outside is provided with thermal insulation separation thermosphere.
Adopt after technical solutions according to the invention, bring following beneficial effect: dexterously the multi-roll drafting machine in chemical fibre field and drafting heat box are combined as a whole, equipment manufacturing cost and floor space are reduced, use liquid heat medium, overcome the low defect of heat content that hot air circulation draw box exists, not only temperature is even, stable, and reduce the interference of wind to tow, in the time of dry tow, can significantly improve vapor concentration, drawing-off/drying efficiency and effect are improved, effectively reduce and reclaim load and energy consumption, can be according to technique needs, the present invention can be used for the drawing-off of silk, also can be used for the dry of silk, can in dry process, realize the drawing-off of silk, and many can be used in combination in the present invention.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Brief description of the drawings
Fig. 1: drawing-off of the present invention/dry silk apparatus structure schematic diagram
Wherein: 1, drawing roller, 2, upper hot plate, 3, lower hot plate, 4, the import of upper hot plate heating agent, 5, the outlet of upper hot plate heating agent, 6, lower hot plate import, 7, lower hot plate outlet, 8, deflector, 9, air inlet, 10, air entry, 11, tow, 12, tow import, 13, tow outlet, 14, passage.
Detailed description of the invention
As shown in Figure 1, a kind of drawing-off of the present invention/dry silk device, this device comprises upper hot plate 2 and the lower hot plate 3 for dry tow that at least one pair of matches, and is arranged on the drawing roller 1 for drawing-off tow of multiple drive at the interval of the hot plate matching.
Described drawing roller 1 is cylindrical structural, point two rows, and two row's drawing roller are parallel staggered, and in same row's drawing roller 1, the centre-to-centre spacing of adjacent two drawing roller 1 is more than or equal to 2 times of roller footpaths, preferably 2 times of roller footpaths; Described a pair of hot plate is divided into each one up and down, is provided with rectangular teeth on each, the interlaced engagement of rectangular teeth on each hot plate, and tooth centre-to-centre spacing is identical with drawing roller 1 centre-to-centre spacing.
Described upper hot plate 2 and lower hot plate 3 are the square tooth-shape structure of hollow, on it, one end is provided with the heating agent import entering for heating agent, the other end is provided with the heating agent outlet of discharging for heating agent, and the rectangular teeth engagement of two hot plates, leaves the passage 14 passing through for tow 11 between two rectangular teeths after engagement.
Described hot plate inside is the cavity identical with external surface shape, in cavity, each tooth root position of center line is equipped with deflector 8, ensure that heating agent does not produce dead band in the time of hot plate internal flow, deflector 8 is rectangle, parallel with the flank of tooth, its width is identical with hot plate thickness, between the little 20mm～500mm of Length Ratio hot plate height of preferred deflector, the less 50mm～200mm of Length Ratio hot plate height of preferred deflector 8.
The described center line of adjacent two teeth groove of same hot plate and the tooth center line of another piece hot plate overlap, and between adjacent two flank of tooth of upper and lower two hot plates, distance is between 5mm～100mm, preferably between 10mm～50mm.
The interval at the teeth groove of described hot plate and rectangular teeth top is provided with drawing roller 1, and each drawing roller 1 central point is on same hot plate two backlash center lines, its upper surface and wherein a hot plate tooth root distance are between 5mm～100mm, preferably between 10mm～50mm, its lower surface and an other hot plate tooth end face distance are between 5mm～500mm, preferably between 50mm～300mm.The width of hot plate equals or is slightly larger than the length of drawing roller, is not generally bigger than 500mm, is not preferably bigger than 200mm.
On this device, be provided with the tow import 12 entering for tow 11 and the tow outlet 13 of discharging for tow 11, in region between the inner 500mm apart from tow import 12 of device and the 500mm position of tow outlet 13, the each point temperature difference can be controlled in 2.0 DEG C, the temperature fluctuation of each point can be controlled in ± and 1.0 DEG C, the temperature fluctuation of preferred each point can be controlled in ± and 0.1 DEG C.
Described this device tow import 12 and tow export 13 positions and are provided with air inlet 9 around, and this device middle part is provided with air entry 10.When work, hot blast enters this device from air inlet, is drawn out of from air entry, both can further reduce device internal difference in temperature, can strengthen again the ability that anti-external environment condition is disturbed, the volatile materials producing can also be taken away in tow drawing-off/dry run, avoid it in the inner gathering of device.
Described heating agent is liquid heat medium, for reducing internal difference in temperature, necessarily requires heating agent at the inner rapid flow of hot plate, and described heating agent time of staying in hot plate cavity is less than or equal to 5min, is preferably less than or equal to 2min, is more preferably less than or equal to 45s.
This device outside is provided with thermal insulation separation thermosphere.Increase security, reduce thermal loss, reduce energy consumption.
When use, tow 11 successively through on ranked first drawing roller, passage 14, under ranked first a drawing roller, passage 14, on ranked second a drawing roller, passage 14, under ranked second a drawing roller, by that analogy, finally go out from last drawing roller of upper row, the heat affected zone that passage 14 is tow, in the cavity of upper and lower hot plate, have liquid heat medium, by heat radiation by heat radiation in passage 14, thereby the tow 11 in heat tunnel 14.
In the present invention, many said apparatus can be used in combination.The tow outlet of a upper table apparatus is connected with the tow import of next tow device, thereby extends drawing-off stroke and dry trip.
Embodiment mono-
As shown in Figure 1, this example designs the drawing roller 1 of 21 drive altogether, is staggered and arranges, wherein 11 of upper rows for two rows are parallel, 10 of lower rows, the long 280mm of roller, roller footpath 200mm, same row is adjacent, and 2 drawing roller centre-to-centre spacing are 400mm, lower row's drawing roller and the upper row's drawing roller 200mm that is staggered, two rows drawing roller centre-height is at a distance of 1500mm, and filament inlet is located at and ranked first a drawing roller place, last drawing roller place of the tow outlet row of being located at.
Hot plate is divided into upper and lower two, is square profile of tooth, under upper hot plate teeth directional, on lower hot plate teeth directional, interlaced meshing.Wherein, upper hot plate has 10 rectangular teeths, and lower hot plate has 11 rectangular teeths.The high 1450mm of hot plate, thick 330mm, height of teeth root 200mm, the long 1250mm of tooth, facewidth 150mm, tooth centre-to-centre spacing is 400mm.Upper hot plate 2 tooth roots, apart from upper row's drawing roller 1 upper surface 50mm, are arranged drawing roller 1 upper surface 300mm under increment identity distance, lower hot plate 3 tooth roots, apart from lower row's drawing roller 1 lower surface 50mm, are arranged drawing roller 1 lower surface 300mm on increment identity distance.
Hot plate inside is square profile of tooth cavity, identical with hot plate external surface shape, is provided with the deflector 8 of rectangle at the each tooth root position of center line of cavity inside.Deflector 8 width are 330m, identical with hot plate inner chamber width, and length is 1350mm, the little 100mm of specific heat plate height.
Upper hot plate 2 is being provided with hot plate heating agent import 4 near tow import 12, export 13 places be provided with hot plate heating agent outlet 5 at tow.Near this device tow import 12, tow outlet 13, be provided with air inlet 9, above middle part be provided with air entry 10, outside is provided with 60mm thick insulation layer.
After tested, be that 60m3/h, temperature are the heating agent of 120 ± 0.2 DEG C toward passing into flow in upper and lower hot plate respectively, detect each temperature fluctuation and be ± 0.2 DEG C, the interior maximum temperature difference of effective range is 1.8 DEG C.
In use, tow successively through on ranked first drawing roller, under ranked first a drawing roller, on ranked second a drawing roller, under ranked second a drawing roller, by that analogy, finally go out from last drawing roller of upper row, can realize 20 road drawing-offs, total kilometres can reach 36280mm.
The foregoing is only the preferred embodiment of the present invention, it should be pointed out that for the ordinary skill in the art, without departing from the principles of the present invention, can also make various deformation and improvement, this also should be considered as protection scope of the present invention.
Claims (10)
1. drawing-off/dry silk device, is characterized in that: this device comprises the hot plate for dry tow that at least one pair of matches, and is arranged on the drawing roller for drawing-off tow of multiple drive at the interval of the hot plate matching.
2. a kind of drawing-off according to claim 1/dry silk device, it is characterized in that: described a pair of hot plate is divided into each one up and down, on each, be provided with rectangular teeth, the interlaced engagement of rectangular teeth of upper and lower hot plate, described drawing roller is cylindrical structural, point two rows, and two row's drawing roller are parallel staggered, in same row's drawing roller, the centre-to-centre spacing of adjacent two drawing roller is more than or equal to 2 times of roller footpaths, preferably 2 times of roller footpaths; Tooth centre-to-centre spacing is identical with drawing roller centre-to-centre spacing.
3. a kind of drawing-off according to claim 2/dry silk device, it is characterized in that: the square tooth-shape structure that described hot plate is hollow, on it, one end is provided with the heating agent import entering for heating agent, the other end is provided with the heating agent outlet of discharging for heating agent, the rectangular teeth engagement of two hot plates, leaves the passage passing through for tow between two rectangular teeths after engagement.
4. a kind of drawing-off according to claim 3/dry silk device, it is characterized in that: described hot plate is inner is the cavity identical with external surface shape, in cavity, each tooth root position of center line is equipped with deflector, deflector is rectangle, parallel with the flank of tooth, its width is identical with hot plate thickness, between the little 20mm～500mm of Length Ratio hot plate height of preferred deflector, the less 50mm～200mm of Length Ratio hot plate height of preferred deflector.
5. a kind of drawing-off according to claim 4/dry silk device, it is characterized in that: the described center line of adjacent two teeth groove of same hot plate and the tooth center line of another piece hot plate overlap, between adjacent two flank of tooth of upper and lower two hot plates, distance is between 5mm～100mm, preferably between 10mm～50mm.
6. a kind of drawing-off according to claim 5/dry silk device, it is characterized in that: the interval at the teeth groove of described hot plate and rectangular teeth top is provided with drawing roller, and each drawing roller central point is on same hot plate two backlash center lines, its upper surface and wherein a hot plate tooth root distance are between 0mm～100mm, preferably between 10mm～50mm, its lower surface and an other hot plate tooth end face distance are between 5mm～500mm, preferably between 50mm～300mm.
7. a kind of drawing-off according to claim 1/dry silk device, it is characterized in that: on this device, be provided with the tow import entering for tow and the tow outlet of discharging for tow, in the inner region between tow import 0.5m and tow outlet 500mm position of device, the each point temperature difference can be controlled in 2.0 DEG C, the temperature fluctuation of each point can be controlled in ± and 1.0 DEG C, the temperature fluctuation of preferred each point can be controlled in ± and 0.1 DEG C.
8. a kind of drawing-off according to claim 7/dry silk device, is characterized in that: described this device tow import and tow exit position are provided with air inlet around, and this device middle part is provided with air entry.
9. a kind of drawing-off according to claim 1/dry silk device, is characterized in that: described heating agent is liquid heat medium, described heating agent time of staying in hot plate cavity is less than or equal to 5min, is preferably less than or equal to 2min, is more preferably less than or equal to 45s.
10. a kind of drawing-off according to claim 1/dry silk device, is characterized in that: this device outside is provided with thermal insulation separation thermosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410136432.5A CN104120498B (en) | 2013-04-24 | 2014-04-04 | A kind of drawing-off/be dried silk device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310146314.8 | 2013-04-24 | ||
| CN2013101463148 | 2013-04-24 | ||
| CN201310146314 | 2013-04-24 | ||
| CN201410136432.5A CN104120498B (en) | 2013-04-24 | 2014-04-04 | A kind of drawing-off/be dried silk device |
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| CN104120498A true CN104120498A (en) | 2014-10-29 |
| CN104120498B CN104120498B (en) | 2017-01-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106400156A (en) * | 2016-08-31 | 2017-02-15 | 义乌华鼎锦纶股份有限公司 | Method for preparing high-tenacity low-elongation polyamide 6 fiber |
| CN112921422A (en) * | 2021-01-20 | 2021-06-08 | 中国纺织科学研究院有限公司 | Hot box for drawing yarns |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012520B (en) * | 2017-03-16 | 2019-03-15 | 安徽省唯一纺织有限公司 | A kind of sub-wire drying equipment of textile chemical fiber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112921422A (en) * | 2021-01-20 | 2021-06-08 | 中国纺织科学研究院有限公司 | Hot box for drawing yarns |
| CN112921422B (en) * | 2021-01-20 | 2022-08-30 | 中国纺织科学研究院有限公司 | Hot box for drawing yarns |
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| CN104120498B (en) | 2017-01-04 |
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