CN104964869A - Mixing method and equipment of semifinished standard fiber-component-content products - Google Patents
Mixing method and equipment of semifinished standard fiber-component-content products Download PDFInfo
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- CN104964869A CN104964869A CN201510385285.XA CN201510385285A CN104964869A CN 104964869 A CN104964869 A CN 104964869A CN 201510385285 A CN201510385285 A CN 201510385285A CN 104964869 A CN104964869 A CN 104964869A
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Abstract
The invention discloses a mixing method and equipment of semifinished standard fiber-component-content products. The mixing method comprises the following steps of: utilizing air to mix short fibers after staple cutting, drying and weighing according to the proportioning requirement, and after mixing is finished, compressing mixture to prepare the semifinished standard fiber-component-content products, and after carrying out hot melting or needling on the semifinished products, obtaining the standard fiber-component-content products. The mixing method disclosed by the invention has the advantages that the air is utilized for mixing the fibers, no any intermediate pollutants are introduced, a mixed product superior to the prior art can be obtained; not only is the method simple and reliable, but also the equipment designed by the invention is simple in structure, good in stability and simple in operation.
Description
Technical field
The invention belongs to textile technology field, the mixed method of the fibre fractionation content standard product of specifically a kind of polycomponent arbitrary proportion combination of short run low cost, and utilize the equipment of said method composite fibre.
Background technology
In textile inspection, in order to Accurate Determining fibre fractionation content, need testing sample and standard items comparison.The making of current standard items is by different types of converted top according to the mixing of predetermined rate of charge, in plant equipment, then rely on the means of machinery point comb to realize.Because various fiber divides fuds fuddled in the process of comb different at machinery, the fiber content of the finished product finally made and the difference of predetermined rate of charge are about 3 ~ 5%; And once feeding intake in textile production calculates with ton, and standard items requirement is less.Therefore, said method is not suitable with the standard items sample preparation needs detecting short run, multi items.
In recent years, speed is fast, efficiency is high, cost is low, do not destroy the method for the quick detection fibers composition of the near-infrared spectrum technique of sample reaches its maturity, and near-infrared spectrum technique detection fibers composition needs to set up fibre composition kind and scale model storehouse.Because the combination of textile fibres composition kind exceedes several ten thousand kinds, even common 23 kinds of fibre compositions, by maximum five kinds of compositions combination, also (23+253+1771+8855+33649) totally 44551 groups is had, consider the change of fibre composition ratio again, even if with the fibre composition ratio gradient Modling model of 5%, foundation comprises five component fibre composition kinds and ratio data library model, just need 253 × 19+1771 × 171+8855 × 969+33649 × 3876=139311667, i.e. 13,931 ten thousand cover half standard specimens.Set up the fibre composition kind and the ratio data library model that comprise four components, need 8,610,000 cover half standard specimens.Set up the fibre composition kind and the ratio data library model that comprise three components, need 3.5 ten thousand cover half standard specimens in theory.
The textile component kind that existing market is commercially produced and ratio cannot meet the needs of building database, and based on the consideration of technology and cost, the combination of some fibre composition kind and ratio cannot be commercially produced, and therefore needs a kind of new sample making technology to meet the needs of near-infrared spectrum technique detection fibers component ratio.There are some chemical method preparation standard product in prior art, but these chemical preparation process need to introduce intermediate, as bonding agent, and the intermediate introduced after these can produce error to the sample of preparation, thus causes follow-up measurement to there is inevitable measuring accuracy problem.
Summary of the invention
The object of the present invention is to provide a kind of intermediate etc. that need not add can introduce error, utilize gas to mix, mainly for the preparation of the half-finished mixed method of fibre fractionation content standard product and equipment.
For achieving the above object, the half-finished mixed method of fibre fractionation content standard product of the present invention's design, comprises the following steps:
One) short fibrous: short fiber raw fibre being chopped into appropriate length;
Two) dry: the fiber after short fibrous is cured at a certain temperature to constant weight;
Three) weigh: the proportion requirement prepared according to plan, the short fiber that accurate weighing is dried;
Four) mix: insert in mixing chamber by needing the short fiber of mixing, in mixing chamber, pressurized air is blown into off and on from the bottom of mixing chamber, pressurized air drives staple fibre to rise in mixing chamber, the stable gas pressure in mixing chamber is ensured in mixing chamber's open top, when not having pressurized air to be blown into, short fiber, at the sink under gravity of self, makes short fiber mix so repeatedly;
Five) after short fiber mixes, closes compression air also, after leaving standstill a period of time, utilizes pressing plate to press to bottom mixing chamber from mixing chamber top by the short fiber mixed, and forms pie, mark fiber content title and ratio, can obtain the semi-manufacture of fibre fractionation content standard product.
Step one) in, need first clean to remove non-fibrous material for the raw material more containing non-fibrous material, then be chopped into short fiber, these technological means adopt according to different sample choice, and its means are consistent with prior art, are not repeated herein.
Preferably, step one) in, the length of described short fiber is 2 ~ 10mm.
Preferred further, for the fiber that mass density is different, the length when short fibrous adjusts according to its density, and object makes different fiber be unlikely to layering when freely falling.
Preferably, according to the ratio of configuration, the various short fiber of mixing that needs is blown in described mixing chamber together several times.Such as: the allocation ratio of cashmere short fiber and wool short fiber is 30 grams: 70 grams, need all to be blown into mixing chamber in 10 minutes, then need to utilize two feeding-passages, one of them feeding-passage cashmere being blown into 3 grams per minute, another feeding-passage wool being blown into 7 grams per minute.
As another preferred version, in the disposable input mixing chamber of short fiber various needs mixed according to the ratio of preparation.Such as: the allocation ratio of cashmere short fiber and wool short fiber is 30 grams: 70 grams, disposable by bottom the disposable input mixing chamber of wool short fiber of the cashmere short fiber of 30 grams and 70 grams, can start after input to be blown into pressurized air, when allowing to save time, artificial preliminary mixing can be carried out to the wool short fiber of the cashmere short fiber of 30 grams dropped into and 70 grams.
Preferably, short fiber is blown in mixing chamber with pressurized air.
As another preferred version again, step 4) in, pressurized air needs before being blown into mixing chamber to carry out rectification through transition air chamber, ensures the homogeneity being blown into mixing chamber's compressed air air pressure, and the internal diameter in the indoor chamber of described transitional gas is greater than the internal diameter of compressed air piping.Like this, the Homogeneous phase mixing of short fiber is beneficial to.
Preferably, described pressurized air is by directly blowing to mixing chamber top bottom mixing chamber and/or by blowing to mixing chamber's inwall bottom mixing chamber.That is, pressurized air directly blows to top bottom mixing chamber; Or pressurized air blows to inwall bottom mixing chamber; Or a part of pressurized air directly blows to top bottom mixing chamber, another part pressurized air blows to inwall bottom mixing chamber.
Preferably, step 4) in, pressurized air continues to be blown into 10 ~ 15 seconds, pauses after 3 ~ 5 seconds, then is blown into next time.
Preferably, described compressed-air actuated air pressure is not more than 1MPa.
As a preferred version again, step 4) in, the while of being blown into compressed-air actuated, continue or the rotation mixing chamber of interval.Like this, that improves short fiber further mixes efficiency and effect.
Further preferred, the gyro frequency of described mixing chamber is not more than and is compressed-air actuatedly blown into frequency.
Preferably, step 5) in, air in the described pressing plate compressed mixed chamber that adopts and be connected with mixing chamber inner wall sealing of exerting pressure makes air to be arranged on bottom mixing chamber and the sieve screen apertures of the screen cloth that short fiber can not be made to pass discharges, form pie, thus short fiber is made fibre fractionation content standard product semi-manufacture.
Preferred further, described screen cloth is 200 orders.
For achieving the above object, the half-finished mixing apparatus of fibre fractionation content standard product of the present invention's design, it is characterized in that: comprise compressed air source and mixing chamber, described mixing chamber one end is provided with compressed air inlet, the other end is provided with compressed air outlet, described compressed air source is blown into pressurized air from mixing chamber's import, pressurized air is discharged from mixing chamber's outlet, be provided with the pressing plate that can stretch in mixing chamber above described mixing chamber, described mixing chamber lower end is provided with the half-finished screen cloth of deposit fiber component concentration standard items.
Preferably, described compressed air inlet is positioned at mixing chamber lower end, and outlet is positioned at mixing chamber upper end; Described screen cloth is positioned at compressed air inlet place, lower end of mixing chamber.
Preferably, described mixing chamber is the cylindrical tube of the both ends open vertically arranged, and described lower open end is compressed air inlet, and described upper open end is compressed air outlet.
Preferably, described mixing chamber is spherical, the upper and lower both ends open of described mixing chamber, and described lower open end is compressed air inlet, and described upper open end is compressed air outlet.
Preferably, be provided with between described compressed air source and the import of described mixing chamber pressurized air is split into the shunt that multiply air-flow is blown into mixing chamber.
Preferably, be provided with transition air chamber between described splitter inlet and described compressed air source, described transition air chamber is chamber, and the internal diameter of its inner chamber is greater than the internal diameter of compressed air piping.Like this, the homogeneity entering mixing chamber's compressed air air pressure can be ensured, thus be beneficial to the homogeneity of mixing.
Preferably, described shunt comprises multiple uniform and separately independently by the runner that mixing chamber is communicated with compressed air source, the axis being parallel of described runner and/or be acute angle with vertical direction.That is, the axis being parallel vertical direction of all runners; Or the axis of all runners and vertical direction are acute angle; Or the axis being parallel vertical direction of a part of runner, the axis of another part runner and vertical direction are acute angle.
Preferably, described screen surface is provided with enclosing, and the internal diameter of described enclosing is not less than the internal diameter of described mixing chamber opening.
Preferably, described screen cloth is 200 eye mesh screens.
Preferably, described mixing chamber connects a whirligig, and described whirligig drives described mixing chamber to rotate around the line of described mixing chamber two open centre.
The invention has the beneficial effects as follows: the semi-manufacture that the present invention makes (as after hot melt or acupuncture) in follow-up operation carry out consolidation to potpourri, form the fiber cake with certain durability, fibre fractionation content standard product can be obtained; The present invention utilizes gas to mix fiber, does not introduce any intermediate contaminant, and can obtain the product mix being better than prior art, not only method is simple and reliable, and the device structure of the present invention's design is simple, and good stability is simple to operate.
Accompanying drawing explanation
Fig. 1 is the structure revolved section schematic diagram of mixing apparatus of the present invention
Fig. 2 and Fig. 3 is the diagrammatic cross-section of mixing apparatus of the present invention two kinds of different runners
In figure: compressed air source 1, mixing chamber 2 (import 2.1, outlet 2.2), runner 3, pressing plate 4, screen cloth 5 (enclosing 5.1), transition air chamber 6, shunt 7.
Embodiment
Below by Fig. 1 ~ Fig. 3 and the mode enumerating embodiment more of the present invention; be described in further detail technical scheme of the present invention (comprising optimal technical scheme), any technical characteristic in the present embodiment and any technical scheme all do not limit the scope of the invention.
The half-finished preparation of standard items of embodiment one cashmere and wool (10g/90g)
One) short fibrous: short fiber raw fibre being chopped into 2 ~ 10mm; Wherein, need first clean to remove non-fibrous material for the raw material more containing non-fibrous material, then be chopped into short fiber;
Two) dry: the short fiber cut is placed in the baking oven of 105 DEG C and dries to constant weight, put into airtight containers for future use;
Three) weigh: the ratio configured according to plan calculates the quantity of cashmere and the wool that take, and weighs with the balance of sensibility reciprocal 0.01g; Load weighted fiber is put into respective storage bin, the present invention in order to easy to use be all short fibers have been weighed after put into mixing chamber together;
Four) cashmere short fiber and wool short fiber are inserted in mixing chamber, in mixing chamber, be blown into the pressurized air of lasting 10 ~ 15 seconds every 4 seconds from the bottom of mixing chamber, compressed-air actuated air pressure is not more than 1MPa, and from the feed bin storing cashmere, be blown into cashmere (2g/min) along with pressurized air, wool (18g/min) is blown into from the feed bin storing wool, just cashmere and wool are inserted in mixing chamber completely in such 5min, then the pressurized air of 5min is blown into again, pressurized air drives cashmere and wool to rise in mixing chamber, be provided with opening due to mixing chamber top thus ensure that the stable gas pressure in mixing chamber, turbulent flow is there will not be in mixing chamber, there is no pressurized air---that is to say and to be blown between compressed-air actuated gap short fiber at the sink under gravity of self, so wool and cashmere is repeatedly made to mix,
Above-mentioned steps four) feeding mode be need the short fiber of mixing several times and be independently evenly be blown in described mixing chamber within equal time according to the ratio of configuration by often kind, also can adopt in cashmere (10 grams) and wool (90 grams) disposable input mixing chamber, after artificial preliminary mixing, be blown into 10 minutes pressurized air more off and on, wool and cashmere are mixed.
Five) after closes compression air also leaves standstill 5min, to utilize pressing plate the cashmere mixed and wool to be pressed to from mixing chamber top to be placed in bottom mixing chamber and the screen cloth that short fiber can not be made to pass, form pie, mark fiber content title and ratio, can obtain the semi-manufacture of fibre fractionation content standard product.Follow-up operation carries out consolidation to potpourri, forms the fiber cake with certain durability, fibre fractionation content standard product can be obtained, and to its assignment.
The half-finished preparation of standard items of embodiment two cotton and spandex (95g/5g)
One) short fibrous: because cotton is different with the mass density of spandex, when short fibrous, length that is cotton and spandex adjusts according to their density with regard to needing, thus avoid them when free-falling, lamination to occur, and then cause mixing uneven, in this example, adopt short fiber cotton being chopped into 10mm, spandex is chopped into the short fiber of 2mm;
Two) dry: the short fiber cut is placed in the baking oven of 105 DEG C and dries to constant weight, put into airtight containers for future use;
Three) weigh: the ratio configured according to plan calculates the quantity of cotton and the spandex that take, and weighs with the balance of sensibility reciprocal 0.01g; Load weighted fiber is put into respective storage bin, the present invention in order to easy to use be all short fibers have been weighed after put into mixing chamber together;
Four) cotton short fiber and spandex short fiber are inserted in mixing chamber, in mixing chamber, be blown into the pressurized air of lasting 13 seconds every 3 ~ 5 seconds from the bottom of mixing chamber, compressed-air actuated air pressure is not more than 1MPa, and be blown into cotton (9.5g/min) along with pressurized air from storing cotton feed bin, spandex (0.5g/min) is blown into from the feed bin storing spandex, just cotton and spandex are inserted in mixing chamber completely in such 10min, then the pressurized air of 5min is blown into again, pressurized air drives cotton and spandex to rise in mixing chamber, be provided with opening due to mixing chamber top thus ensure that the stable gas pressure in mixing chamber, turbulent flow is there will not be in mixing chamber, there is no pressurized air---that is to say and to be blown between compressed-air actuated gap short fiber at the sink under gravity of self, cotton and spandex is so repeatedly made to mix,
Above-mentioned steps four) also can adopt two kinds of different feeding modes, again do not repeat.
Five) after closes compression air also leaves standstill 5min, to utilize pressing plate the cotton mixed and spandex to be pressed to from mixing chamber top to be placed in bottom mixing chamber and the 200 object screen clothes that short fiber can not be made to pass, form pie, mark fiber content title and ratio, can obtain the semi-manufacture of fibre fractionation content standard product.Follow-up operation carries out consolidation to potpourri, forms the fiber cake with certain durability, fibre fractionation content standard product can be obtained, and to its assignment.
Preferably, the step 4 of above-mentioned two embodiments) in, pressurized air needs before being blown into mixing chamber to carry out rectification through transition air chamber, to ensure the homogeneity being blown into mixing chamber's compressed air air pressure.Like this, the Homogeneous phase mixing of short fiber is beneficial to.Preferably, described pressurized air is by directly blowing to mixing chamber top bottom mixing chamber and/or by blowing to mixing chamber's inwall bottom mixing chamber, that is, pressurized air directly blows to top bottom mixing chamber; Or pressurized air blows to inwall bottom mixing chamber; Or a part of pressurized air directly blows to top bottom mixing chamber, another part pressurized air blows to inwall bottom mixing chamber.
As another preferred version, the step 4 of above-mentioned two embodiments) in, the while of being blown into compressed-air actuated, continue or rotation mixing chamber intermittently.Like this, that improves short fiber further mixes efficiency and effect.Further preferred, the gyro frequency of described mixing chamber is not more than and is compressed-air actuatedly blown into frequency.
As shown in Figure 1, the half-finished mixing apparatus of fibre fractionation content standard product of the present invention's design, comprise the mixing chamber 2 of compressed air source 1 and the cylindrical tube for the both ends open of vertically setting, the lower open end of described mixing chamber 2 is compressed air inlet 2.1 and described upper open end is compressed air outlet 2.2, pressurized air is blown in mixing chamber 2 from import 2.1 by described compressed air source 1, pressurized air discharges mixing chamber 2 from outlet 2.2, like this, ensure that stable gas pressure when being blown into pressurized air in mixing chamber 2 and turbulent flow can not be produced in mixing chamber, be provided with between described compressed air source 1 and described mixing chamber 2 import 2.1 and pressurized air is split into the shunt 7 that multiply air-flow is blown into mixing chamber, be provided with above described outlet 2.2 and can stretch into in mixing chamber 2 and the pressing plate 4 contacted with its inner wall sealing, described import 2.1 place is provided with the half-finished 200 object screen clothes 5 of deposit fiber component concentration standard items, described screen cloth 5 surface is provided with enclosing 5.1, the internal diameter of described enclosing 5.1 is not less than the internal diameter of described import 2.1, and described enclosing 5.1 docks with the import 2.1 of mixing chamber 2 lower end.
The short fiber of fiber according to ratio requirement after short fibrous, oven dry, weighing is all inserted in semi-open space that screen cloth 5 and enclosing 5.1 surround, and manually tentatively grab even; Then enclosing 5.1 is docked with the import 2.1 of mixing chamber 2, start compressed air source 1, start biased sample, now pressing plate 4 is positioned at the top of outlet 2.2, mixing chamber 2 and ft connection, certainly in order to ensure that short fiber can not blow out mixing chamber 2 and can set up the stable gas pressure ensured while 200 object screen clothes cover outlet 2.2 in mixing chamber 2 at outlet 2.2 place, normally do not need extra to increase, because mixing chamber is higher, and pressurized air is pulsed, short fiber can not be blown mixing chamber.
Separation vessel 7 has multiple shunting mode, and separation vessel 7 can adopt multiple uniform and separately independently by the runner 3 that mixing chamber 2 is communicated with compressed air source 1, the axis being parallel of described runner 3 and/or be acute angle with vertical direction.
Preferably, Fig. 2 and Fig. 3 shows two kinds of different intake methods:
As shown in Figure 2, the axis of described runner 3 is parallel with vertical direction, and the axis of this Li Zhong mixing chamber 2 is also parallel with vertical direction; Be provided with transition air chamber 6 between described shunt 7 entrance and compressed air source 1, the pressurized air that described compressed air source 1 is blown into first is being blown in mixing chamber 2 through runner 3 through transition air chamber 6.Like this, the homogeneity entering mixing chamber's compressed air air pressure can be ensured, thus be beneficial to the homogeneity of mixing.
As shown in Figure 3, shunt 7 is positioned at the axis being parallel vertical direction of the runner 3 of a middle part, and axis and the vertical direction of the runner 3 outside another part is positioned at are acute angle.Equally, be provided with transition air chamber 6 between described shunt 7 entrance and compressed air source 1, the pressurized air that described compressed air source 1 is blown into first is being blown in mixing chamber 2 through runner 3 through transition air chamber 6.Like this, the homogeneity entering mixing chamber's compressed air air pressure can be ensured, thus be beneficial to the homogeneity of mixing.
Preferably, described mixing chamber 2 connects a whirligig, and described whirligig drives the line 2.3 of described mixing chamber 2 around described import 2.1 and outlet 2.2 centers of circle to rotate.
Preferably, described mixing chamber 2 can be designed to spherical, mixing chamber about 2 both ends open, and described lower open end is compressed air inlet, and described upper open end is compressed air outlet; Further, the line of two open centre crosses the centre of sphere.
Claims (10)
1. the half-finished mixed method of fibre fractionation content standard product, comprises the following steps:
One) short fibrous: short fiber raw fibre being chopped into appropriate length;
Two) dry: the fiber after short fibrous is cured at a certain temperature to constant weight;
Three) weigh: the proportion requirement prepared according to plan, the short fiber that accurate weighing is dried;
Four) mix: by needing the short fiber of mixing to insert in mixing chamber, in mixing chamber, being blown into pressurized air off and on from the bottom of mixing chamber, so repeatedly making short fiber mix;
Five), after short fiber mixes, closes compression air also, after leaving standstill a period of time, utilizes pressing plate to press to bottom mixing chamber from mixing chamber top by the short fiber mixed, and forms pie, can obtain the semi-manufacture of fibre fractionation content standard product.
2. the half-finished mixed method of fibre fractionation content standard product according to claim 1, is characterized in that: step one) in, the length of described short fiber is 2 ~ 10mm.
3. the half-finished mixed method of fibre fractionation content standard product according to claim 1, is characterized in that: the short fiber mixed by various needs according to the ratio of preparation is blown in described mixing chamber with pressurized air together several times.
4. the half-finished mixed method of fibre fractionation content standard product according to claim 1, is characterized in that: in the disposable input mixing chamber of short fiber mixed by various needs according to the ratio of preparation.
5. the half-finished mixed method of fibre fractionation content standard product according to claim 1, it is characterized in that: step 4) in, pressurized air needs before being blown into mixing chamber to carry out rectification through transition air chamber, ensure the homogeneity being blown into mixing chamber's compressed air air pressure, the internal diameter in the indoor chamber of described transitional gas is greater than the internal diameter of compressed air piping.
6. the half-finished mixed method of fibre fractionation content standard product according to claim 1, it is characterized in that: step 4) in, described compressed-air actuated air pressure is not more than 1MPa, and pressurized air continues to be blown into 10 ~ 15 seconds, pause after 3 ~ 5 seconds, then be blown into next time.
7. the half-finished mixing apparatus of fibre fractionation content standard product, it is characterized in that: comprise compressed air source and mixing chamber, described mixing chamber one end is provided with compressed air inlet, the other end is provided with compressed air outlet, described compressed air source is blown into pressurized air from mixing chamber's import, pressurized air is discharged from mixing chamber's outlet, be provided with the pressing plate that can stretch in mixing chamber above described mixing chamber, described mixing chamber lower end is provided with the half-finished screen cloth of deposit fiber component concentration standard items.
8. the half-finished mixing apparatus of fibre fractionation content standard product according to claim 7, is characterized in that: be provided with between described compressed air source and the import of described mixing chamber and pressurized air is split into the shunt that multiply air-flow is blown into mixing chamber.
9. the half-finished mixing apparatus of fibre fractionation content standard product according to claim 7, it is characterized in that: between described splitter inlet and described compressed air source, be provided with transition air chamber, described transition air chamber is chamber, and the internal diameter of its inner chamber is greater than the internal diameter of compressed air piping.
10. the half-finished mixing apparatus of fibre fractionation content standard product according to claim 7, it is characterized in that: described shunt comprises multiple uniform and separately independently by the runner that mixing chamber is communicated with compressed air source, the axis being parallel of described runner and/or be acute angle with vertical direction.
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