EP0892095A1 - Pneumatisches zylinderkarden verfahren und zusammengestellte spezifische karde für feine tierische haare - Google Patents

Pneumatisches zylinderkarden verfahren und zusammengestellte spezifische karde für feine tierische haare Download PDF

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Publication number
EP0892095A1
EP0892095A1 EP97908106A EP97908106A EP0892095A1 EP 0892095 A1 EP0892095 A1 EP 0892095A1 EP 97908106 A EP97908106 A EP 97908106A EP 97908106 A EP97908106 A EP 97908106A EP 0892095 A1 EP0892095 A1 EP 0892095A1
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EP
European Patent Office
Prior art keywords
roller
dehairing
airflow
unit
downs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97908106A
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English (en)
French (fr)
Other versions
EP0892095A4 (de
Inventor
Xiaoguang Jia No. 1 Shu Guang XiLi MIAO
Juxian Jia No. 1 Shu Guang XiLi TIAN
Yuanzheng Jia No. 1 LI
Bin Jia No. 1 LI
Yan Jia No. 1 QI
Shuangdong Jia No. 1 REN
Xushan Jia No. 1 WANG
Po Jia No. 1 XU
Xinjian Jia No. 1 FAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Snow-Lotus Cashmere Co Ltd
Original Assignee
Beijing Snow-Lotus Cashmere Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN 96204893 external-priority patent/CN2244058Y/zh
Priority claimed from CN96207393U external-priority patent/CN2244057Y/zh
Priority claimed from CN96103392A external-priority patent/CN1053023C/zh
Application filed by Beijing Snow-Lotus Cashmere Co Ltd filed Critical Beijing Snow-Lotus Cashmere Co Ltd
Publication of EP0892095A1 publication Critical patent/EP0892095A1/de
Publication of EP0892095A4 publication Critical patent/EP0892095A4/de
Withdrawn legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines

Definitions

  • the invention relates to a dehairing method and its equipment for special downs in textile industry. Especially, it relates to a suspension dehairing method by airflow generated by roller( S. D. A. R.)and its combined dehairing machine for special downs.
  • the conventional roller dehairing equipment used in the dehairing process in textile industry is classified into “ equipment with principle of three rollers, doffer transferring, centrifugal dehairing " , " equipment with principle of three rollers, fancy transferring , centrifugal dehairing " and “ equipment with diligentle of taker-in centrifugal dehairing, fan suction transferring " .
  • a first kind of dehairing equipment after receiving flocks from a front intake roller, a coarse-fiber-throwing dehairing roller separates coarse fibres by means of centrifugal force, the dehaired flocks are then collected at the card clothing by doffer condensing roller and are tranferred to a guide roller, thereafter are submitted to the next process, a second kind of dehairing equipment: coarse-fiber-throwing dehairing roller picks up the flocks from a front intake roller and separates coarse fibers by means of centrifugal force, the dehaired flocks are then collected at the card clothing by a fancy transferring roller and are transferred to a guide roller, thereafter are submitted to the next process.
  • the dehairing principle makes use of the centrifugal force generated by the dehairing roller in certain technological revolving speed.
  • the material being held at the card clothing of the dehairing roller begins to be separated.
  • the medullated wools, fine bristles, large impurities, the other kinds of coarse fibres with good straightness and the burrs which have relatively large mass which are not easy to be held by the clothing are separated from the clothing by the centrifugal force, but the flocks with little mass and certain degree of crimps and other substances are not easy to be separated and are continuously held by the clothing and to be transferred , in the former equipment relay-transfer of the flocks is performed under the action between the doffer condensing roller and the coarse-fiber-throwing dehairing roller.
  • the dehairing machine made in Japan is a typical equipment with principle of taker-in centrifugal dehairing, fan suction transferring. It adopts the severe dehairing mechanism with feed plate, taker-in and fancy transferring as the main part. Its drawing rate is 85%, fibre damage rate is 15%, rate of coarse fibre content is 0.2%, rate of impurity content is 0.3%. (provided by its directions)
  • the dehairing machine made is England adopts the roller dehairing mechanism with two feed rollers, taker-in and fancy transferring as the main part, Its drawing rate is 93%, fibre damage rate (and first-class product rate) is not considered, rate of coarse fibre content of end product is 0.4%, rate of impurity content is 0.2%.
  • LFN 241 cashmere combined dehairing machine made in China adopts the roller dehairing mechanism with roller coarse-fibre-throwing, fancy transferring as the main part.
  • a taker-in, flat dehairing unit is provided to it. Its drawing rate is 8.5%, fibre damage rate is 15%, rate of coarse fibre content is 0.2%, rate of impurity content is 0.2%.
  • this dehairing unit has good effect on the separating of coarse medullated wools that differ greatly from cashmere in mass, coarse fine wools with good straightness and large impurities in clean wools for dehairing, There's no good effect on the separating of fine bristles that differ slightly from cashmere, coarse wools with certain degree of crimps and heterotypical fibres contained in raw cashmere.
  • This unit has some drawbacks; lapping, abrasion of the clothing, sagging of the needle, bad technological reliability of the unit, serious damage of the fibre, relatively low general dehairing efficiency.
  • the delivering way also has certain drawback.
  • Another object of the invention is to provide a kind of S. D. A. R. method and its combined dehairing machine for special downs with doffer transferring, guide roller collecting of cashmere.
  • Another object of the invention is to provide a S. D. A. R. method and its combined dehairing machine for special downs which has separating function as down removing knife, separates downs from dehairing roller, delivers and collects downs by big and small filter-net-roller.
  • the S. D. A. R. method of the invention includes:
  • said method of transferring the flocks held on the dehairing roller from dehairing roller to the delivering unit adopts the way of doffer transferring, stripping and delivering by guide roller
  • said method of gathering the downs suspending in roller airflow to down collecting unit by flow of roller airflow is that the roller airflow flows to the guide roller and filter-net-roller, the downs are gathered at the guide roller, the airflow is led out by filter-net-roller, the downs and said flocks are then delivered together.
  • said method of transferring the flocks held on the dehairing roller from dehairing roller to delivering unit is that flocks are removed under the airflow separating action of down removing knife, and the flocks are held and delivered by airflow, big and small filter-net-roller.
  • Said method of gathering the downs suspending in roller airflow to down collecting unit by the flow of roller airflow is that roller airflow flows to big and small filter-net-roller, downs are gathered at the surface of big and small filter-net-roller, the airflow is led out by the filter-net-roller, the downs and said flocks are then delivered together.
  • the working principle of one set or two sets of dehairing unit with feed roller, taker-in beat roller, airflow transferring is that under the action of high-speed reverse airflow formed at the surface of beat roller, the coarse fibres and impurities at the outer part of taker-in airflow sphere are beaten out, turning passive coarse-fibre-separating into positive separaitng, after the coarse fibres have been separated, the fibre layer gathers along the airflow cover at the dust cage and is delivered out from the outlet by transferring, its coarse-fibre-separating efficency, the ability to remove fine bristles and bristles is only inferior to the unit with feed plate, taker-in, beat roller, dust cage transferring, but its unique fairly low damage rate of fibres enables to reach the object improving the capacity of the entire machine of remove the coarse fibres and to further reduce fibre damage rate.
  • the oscillating type unit of stripping by stipper bar can be provided directly behind the doffer(this unit must be provided in the delivering end of the entire machine).
  • the combined dehairing machine provides unit with circulation of flat-strips and droppings by air taking and sending, which comprises down collecting bin, fan, funnel connected to fan pipeline and flat stripping cover.
  • the collecting bin lies in a suitable place above the feed lattice.
  • the top of the bin and the fan pipeline are connected.
  • a pair of filter-net feed rollers which are set in horizontal and rotate in opposite direction are provided under the collecting bin.
  • the funnel connected with the fan pipeline is provided under the dehairing taker-in behind the dehairing unit with double-nose like side feed plate.
  • the reusable flat-strips in which the dandruffs have been separated and the droppings under the taker-in are being filtered of dusts by independent air taking and sending, automatic circulation unit and are passed to the feed lattice in the preceding process to rejoin the technological cycle of the process.
  • the drawing rate of the down is improved further and the enviroment of the workshop is improved.
  • the combined dehairing machine is provided with an auxiliary machine, namely an unit of disposing of the droppings, which comprises the feed lattice, after which is, in sequence, the dehairing unit with double-nose-like side feed plate, the dehairing taker-in, big and small dust cage, a pair of feed rollers, the dehairing taker-in, big and small dust cage and beat rollers set below the two dehairing taker-in respectively.
  • Below the beat roller is a discharging knife.
  • the droppings containing more coarse fibres and impurities are fed into the auxiliary machine after the raw materials have been dehaired by the combined dehairing machine.
  • the most part of coarse fibres, impurities and dandruffs are separated by the puncturing, carding, beating action between double-nose-like side feed plate and the taker-in, and by the counteraction of the airflow sphere below the taker-in and above the beat roller.
  • the downs having been separated are gathered to the big and small dust cage with the airflow sphere along the guide cover, condensed and transferred to two rollers taker-in unit.
  • Fig.1 illustrates the technological process of the (S. D. A. R.) method of the invention.
  • the flocks are fed by feed roller and are held by the dehairing roller (the number of the dehairing roller is determined according to technological requirment, generally three or five).
  • the flocks are being dehaired by the centrifugal force produced by rotating of dehairing roller and are combed and dehaired by action of clothing.
  • the coarse medullated fibres, heterotypical fibres, fine bristles, coarse fine fibres, large impurities and other coarse fibre with good straightness which have large mass and are not easy to be held by clothing are being separated and become suspension materials which also contain downs in single fibre form that are not held by clothing and descended loosely.
  • the flocks on the dehairing roller are being dehaired by strike force of airflow formed between two adjacent rollers.
  • the flocks are loosened and the impurities, fine bristles, hyterotypical fibres, coarse fibres with little crimp, downs in single fibre form contained in the flocks are being dehaired out again and drop from the roller, become suspension materials.
  • the flocks remained on the dehairing roller are delivered by delivering unit, held by doffer or stripped by removing knife. Because of the rotating action of the dehairing roller, through a certain machine design, an airflow sphere for the roller which is moved in the same direction with the flocks (Fig.7 right) is produced around the roller, especially under the roller.
  • suspending downs such as guide roller or big filter-net-roller
  • the heavy coarse medullated wool, large impurities and other coarse fibres, hyterotypical fibres, fine bristles, coarse fine wools, dandruffs as separated materials by airflow then drop to the lower part of machine as droppings.
  • the airflow in airflow sphere goes into hollow filter-net-roller(i. e. filter-net dust cage), thereafter dusts are separated and the air is led out of the machine.
  • Fig.2 illustrates a first embodiment of this method which is a S. D. A. R. method to dehair, deliver downs using a combination of transferring by doffer with transferring by airflow. It can be used in the main dehairing part in cashmere dehairing process.
  • the technological process is as below.
  • the flocks are held by the dehairing roller ( it may be three or five set in sequence) and rotate, then are combed by clothing, and the coarse medullated wool, large impurities, downs in single fibre form are being separated by centrifugal force, thereafter, are being dehaired by the strike action of airflow between two rollers once more.
  • the flocks on the last dehairing roller are held and transferred by doffer of the delivering unit and then are held by guide roller and transferred to the dehairing roller of next process and the suspension materials are being suspension-dehaired by the airflow sphere produced by the dehairing roller.
  • the coarse medullated fibres, large impurities drop as droppings.
  • the downs move to right with airflow and are finally gathered to the guide roller of the collecting unit and the airflow containig dusts goes into the inner part of the filter-net-roller through the hole at the surface of the filter-net-roller and led out of the machine.
  • Fig.3 illustrates a second embodiment of this method which is a S. D. A. R. methed using big, small filter-net-roller as unit of collecting downs, delivering downs, It can be used for delivering process in cashmere dehairing process.
  • the former part of the technological process is similar to the first embodiment. The difference is that the flocks on the last dehairing roller are removed from the dehairing roller by airflow separating action of down removing knife and are discharged between big and small filter-net-roller under the guide of airflow of guide cover and the suspending downs in the airflow formed by the dehairing roller are gathered at the surface of big filter-net-roller of unit for collecting suspending downs and then are delivered by big, small filter-net-roller.
  • the positive pressure airflow containing dusts is led out through the mess of big and small filter-net-roller.
  • the airflow separating action of down removing knife depends on an airflow formed at the surface of the roller when the last dehairing roller rotates in high speed.
  • the airflow produce an airflow which moves toward the outer side of blade, which enables the flocks held by the roller to separate from the roller and are led to the big and small filter-net-roller along the guide cover to be discharged.
  • the airflow leads the downs in the suspension dehairing airflow to big and small filter-net-roller, make them to be gathered on it. Therefore, this delivering method doesn't break the downs.
  • S. D. A. R.method provided by the invention is mainly based upon aerodynamics principle, which takes advantage of buoyancy of airflow sphere generated at the surface of roller above critical speed to separate by airflow suspension.
  • this method with the suspension action of airflow sphere at the surface of roller on scattered flocks coming into airflow sphere, heavy impurities and coarse fibres are descended and are separated in order to attain the object of anticipated dehairing.
  • This method brokes through the conventional principle and technology of " roller centrifugal dehairing " ,the problem of dehairing lose effectiveness existed in conventional technology and equipment of roller centrifugal dehairing (when dehairing below critical speed, heterotypical fibres, fine bristles, fine coarse wools are not easy to be separated.
  • Lapping is easily; when dehairing above critical speed, part of downs, impurities and all kinds of coarse wools are descended and become droppings under the action of airflow and strong centrifugal action) is solved.
  • the dehairing technique for cashmere, yak down, lambs-down and the like special downs is improved to a new phase.
  • the drawing rate reaches above 95%.
  • the damage rate of fibre is reduced by 10%.
  • Fig.4 is a schematic drawing of dehairing unit with double cylinder opening and coarse-fibre-throwing.
  • Section I comprises the following parts set horizontally in sequence: three feed rollers 2 with slight degree of arc in vertial direction arranged behind feed lattice 1 and around the opening and transferring roller 3, opening and transferring roller 3, breast cylinder 5, transferring and coarse-fibre-throwing roller 6, cylinder roller 7, further includes the dehairing plate 4 positioned at the upper-left of the breast cylinder 5 and cylinder roller 7 respectively, above the dehairing plate 4 is dehairing knife which lies above the entrance face of the dehairing plate, and has the function of striking and removing impurities.
  • the stripper roller 8 and the working roller 9 arranged in the right of the stripper roller 8. All rollers and working surface of the dehairing plate are wrapped with clothing. The density of teeth is different, fewer in the front and denser in rear.
  • the feed roller in the middle rotates clockwise, the other two feed rollers rotate anticlockwise. Other rollers rotate clockwise except that the breast cylinder and cylinder roller rotate anticlockwise.
  • Fig. 5 is a schematic drawing of dehairing unit (embodiment) with coarse-fibre-separating by seven rollers, condensing by doffer and airflow transferring combined.
  • the embodiment is suitable for preliminary dehairing technology of special downs dehairing.
  • the unit positioned in section II -1 and II -2 of the entire machine shown in Fig.7 comprises three dehairing roller, i. e.
  • the dehairing triangle is fixed on the plane of frame.
  • Three dehairing rollers 11 13 15 are set in horizonal.
  • the dehairing roller 11 is in the front.
  • the rollers are furnished with clothing 12 14 16 respectively.
  • the dehairing triangle 27 is fixed below the plane between roller 13 15.
  • the airflow abjusting roller 25 At the lower-right of the dehairing triangle 27 is the airflow abjusting roller 25.
  • the upper-right of the dehairing roller 15 (the last dehairing roller) is the doffer roller 18, the lower-left of which, i. e. the lower-right of the last dehairing roller 15 is down guide roller 21.
  • the doffer 18 and the down guide roller 21 is covered with clothing 19 22.
  • a filter-net-roller 23 At the lower-left of the down guide roller 21 is a filter-net-roller 23, at the surface of which there are holes 24 connected with the hollow inner part.
  • the first dehairing roller 11 rotates anticlockwise, the clothing 12 thereon is inclined forwardly with respect to the direction of rotation.
  • the second dehairing roller 13 rotates clockwise, the clothing 14 thereon is inclined forwardly to the direction of rotation.
  • the last dehairing roller 15 rotates anticlockwise, the clothing 16 thereon is inclined forwardly to the direction of rotation.
  • the doffer rotates clockwise, the clothing 19 thereon is inclined backwardly.
  • the down guide roller 21 rotates clockwise, the clothing 22 thereon is inclined forwardly.
  • the filter-net dust cage 23 rotates clockwise, which is a hollow column, the holes 24 at the surface of which connects the inner and outside of column and which extends out of frame and leads out air and dust in the airflow sphere.
  • the working principle of this embodiment is as follows: after being transferred from a preceding dehairing unit, flocks are under the opening and dehairing action of three dehairing rollers 11,13,15, because of the effect of the bigger centrifugal force and the lower triangle airflow area of the rollers, flocks mixed with dehaired in single fibre form enter continuously into airflow sphere under the unit, according to the aerodynamics principle, in these flock mixtures, the coarse fibres and impurities which have larger mass and inertia overcome the effect of forces such as the airflow sphere resistance and airflow buoyancy to move outward the airflow sphere, till they separate and drop from the airflow sphere as droppings, the lighter downs are wrapped in the airflow sphere and gathered toward the down guide roller and the filter-net small dust cage, the mixtures containing dust are transmitted out of the machine by the airflow through the filter-net small dust cage, in the transmitted process on the rollers, through the holding action of these three dehairing rollers, the unopened down flocks are continuously opened until
  • the dehairing roller under above-mentioned diameter and revolution can produce roller airflow which is enough to suspend cashmere.
  • the transferring form is not that fibres in ball-like are thrown into the guide roller (this kind of ball-like fibres are both unfavorable to dehairing and easy to become droppings), but that the normal and well-distribute fibre layer can be obtained through the condensing action of doffer and the direct stripping action by down guide roller.
  • transferring of this unit is contactless, but in fancy transferring, fancy wires are inserted into roller's wires, the both wires are easy to be worn, so the revolving stability may be influenced.
  • this unit More over, the unique design of this unit is that an airflow suspending-separating area is formed under the dehairing roller, so it's possible to get the more powerful function of coarse impurity-removing and the ability to control the down content in droppings. This principle brokes through the traditional centrifugal dehairing principle.
  • Fig. 6 is a set of unit with coarse fibres separating by five parallel rollers, airflow suspension separating, transferring and delivering by filter-net-roller, which is on the part III of Fig. 7 which shows the whole machine.
  • the unit consists of five dehairing rollers 1 2 3 4 5, i.e. dehairing roller 29 31 33 35 37, and relevent clothing 30 32 34 36 39 which are covered at the surface of these rollers.
  • Dehairing roller 29 33 37 rotate anti- clockwise, teeth of the clothings incline forwardly toward the rotating direction
  • dehairing roller 31 35 rotate clockwise, teeth of the clothings incline forwardly toward the rotating direction.
  • Delivering unit 10 is at the upper right of dehairing roller 37( the last dehairing roller ), which includes down removing knife 40. There is a certain clearance between down removing knife 40 and dehairing roller 37( e.g. 0.1 ⁇ 0.5 mm ), down removing knife 40 is adjoined with a guide cover 41.
  • down collecting unit 49 for the process of down dehairing, which includes big filter-net roller 42 ( big dust cage ).
  • the big filter-net roller is a hollow tube with an opening 43 interlinking inner and outside.
  • Above big filter-net roller 42 is a small filter-net roller 44, and there is also an opening 45 interlinking inner and outside on the small filter-net roller.
  • the clearance between this two filter-net roller is 3 ⁇ 7 mm, the big filter-net roller rotates clockwise, the small filter-net roller rotates anti-clockwise.
  • Below the place between dehairing rollers 31 37 and the place between dehairing rollers 35 37 are provided a dehairing triangle 48 respectively.
  • the principle of this embodiment is as follows:after the initial dehairing, fibres are further combed, resolved, centrifugally separated through the relay-transferring of the dehairing roller against fibres on the former four dehairing rollers, and at the same time, when fibres are transferred by the dehairing roller to the lower half-part, the combed in single fibre-like flocks with high impurities content are stricken and dehaired by the airflow produced between the two adjacent rollers and then separated from the surface of clothings and become suspension separating matter, finally, moved into the roller airflow area, under the influence of gravity, the flowing airflow sphere and through the suspending action of the carrying fibre by airflow sphere, fine bristles, heterotypical fibres are separated and dropped, downs are continuously moved along the airflow sphere, thereafter under the action of the high centrifugal force of the fifth roller and the airflow sphere formed at the surface of this roller, dandruffs series (bundle of fibres coexisting dandruffs and fibres)
  • Flocks held by dehairing roller 37 are removed through the airflow exchanging action of the down removing knife, and guided with airflow below the guide cover in a space between the big and small filter-net roller, then conveyed with downs condensed on the filter-net roller to be delivered.
  • the dehairing triangle is provide for destroying the airflow whirl formed in the triangle area, which can affect coarse-fibre separating in order to oblige the fibres in a moving state to move along the determined direction in order guarantee the technological requirement.
  • this unit Compared with the traditional doffer stripper-bar delivering mode, this unit has simple structure, little damage to fibres, better droppings effects, and avoids the doffer-transferring deactivation caused by trapping burrs and sagging needle.
  • Fig. 8 is a schematic drawing for the structure of the dehairing unit with double-nose-like side feed plate 57, the unit is positioned at a part with reference number 57 in the whole machine shown in Fig.7.
  • This unit consists of dehairing plate 50 fixed on the machine frame and the working surface at the end of dehairing plate 50.
  • a feed roller 51 above the plate and a dehairing taker-in 54 cooperated with the working surface of dehairing plate.
  • the first area D consists of an upper inclined plane 52 and a lower inclined plane 53
  • the second area E consists of the inclined plane 56 which is under plane 53, an arc is connected between plane 53 and plane 56, the arc forms a groove 55 between plane 53 and plane 56, it is called the second nose-like groove which separates the first area from the second area.
  • Plane 52 53 56 have the same inclined direction relative to the vertical plane, the inclined angles relative to the vertical plane are ⁇ , ⁇ , ⁇ respectively.
  • In the first working area D can also set up only one plane 52, there is also an arc to connect plane 52 and 56 and which forms a groove 55.
  • plane 52 is inclined to the vertical plane at an angle ⁇ which is 10 ⁇ 14°, preferably 11 ⁇ 12°, the vertical length is 22 ⁇ 28 mm ( when there is only one plane 52, the length is 32 ⁇ 38 mm );
  • plane 53 is inclined to the vertical plane at an angle ⁇ which is 15 ⁇ 20°, preferably 16 ⁇ 17° , the vertical length is 10 ⁇ 15 mm,
  • plane 56 is inclined to the vertical plane at an angle ⁇ which is 24 ⁇ 26°, preferably 24.5 ⁇ 25°, the vertical length is 18 ⁇ 22 mm.
  • the above-mentioned vertical length of each plane should be changed with the diameter of taker-in roller. Values of the above-mentioned embodiment are values as the taker-in diameter which is 250 mm ( the normal value ).
  • the clearance between plane 52 53 and dehairing taker-in roller 54 is 4.3 ⁇ " ⁇ 3.1 ⁇
  • the clearance between plane 56 and dehairing taker-in roller 54 is 1.2 ⁇ " ⁇ 1.0 ⁇ ".
  • taker-in teeth first make the puncturing and dehairing to fibre groups and put these fibres in order.
  • the effect of puncturing and dehairing is better than which of only one plane.
  • dehaired fibre groups move into the second working area, the taker-in teeth make more full puncturing and dehairing to the dehaired fibre groups.
  • This unit adopts the form of the working surface of double-nose-like side feed plate, the whole dehairing process is finished through the puncturing, combing and dehairing, striking action by taker-in clothings to fibres under the practically holding action by the feed roller and the imaginarily holding action by the second nose-like groove.
  • This unit has the advantage of full dehairing, small striking force, little fibre damage and high efficiency of impurity-removing.
  • Fig. 9 shows a schematic drawing for the structure of the unit with vacuum stripping of flat-strips and automatic separating of dandruffs, the unit is positioned at a part with reference number 28 in the entire machine shown in Fig. 7.
  • the flat clothing 58 as shown in Fig. 9 is supported by a flat carrier disc 60, which is rotated with the flat carrier disc 60 anticlockwise and moved.
  • a flat carrier disc 60 which is rotated with the flat carrier disc 60 anticlockwise and moved.
  • teeth 59 on the flat clothing 58 its inclined direction is backwardly toward the moving direction, there is also a stripper roller 61 which rotates anti clockwise.
  • Flat carrier disc 60 and stripper roller 61 are supported by the machine frame and rotated by driving unit.
  • There is a stripper clothing 62 on stripper roller 61 the inclined direction of its teeth is backwardly toward the rotating direction, teeth of clothing 62 and clothing 58 are opposed.
  • There is a funnel-shape airflow cover 66 covered at outside of stripper roller 61 the lower part of airflow cover 66 becomes a lower guide plate 64.
  • Clearance between the end of lower guide plate 64 and flat clothings 58 should be adjusted with the suction capacity, such that dandruffs dropped by the vibrating and striking force can be dropped and not to be sucked into airflow cover 66.
  • the clearance can make the negative pressure to be formed on the lower guide plate, and it can also avoid that downs on the stripper roller 61 are thrown onto flat clothing 58.
  • This clearance is generally about 3 mm.
  • Airflow guide knife 65 is installed in a proper position inside airflow cover 66. If extracting air from airflow cover 66, the air is extracted from the lower outlet 63 ( along the direction of arrow C ) in order to make negative pressure within airflow cover. Airflow guide knife 65 is an column with triangle section or a plate, its action is that downs sucked between the stripper roller and the lower guide plate are guided to the outlet 63 and not came into the gap between roller 61 and cover 66.
  • This unit with vacuum stripping of flat-strips and separating of dandruff increases the capability of dandruff dehairing and drawing-rate of downs for the equipment.
  • the stripper-bar which strips downs is cut, so the service life of the unit is longer, the unit run well, the labour intensity is reduced.
  • Fig. 10 shows a schematic drawing for the structure of the dehairing unit with feed roller, taker-in beat roller, airflow transferring, which locates on parts IV-1 and IV-2 of the whole machine shown in Fig. 7.
  • taker-in 69 there is a beat roller 70
  • taker roller 70 there is a airflow discharge knife 71
  • above upper right of taker-in 69 there is a stripper bar 74 close to it
  • a dust cage unit this unit consists of the big dust cage 42 which rotates clockwise and the small dust cage 44 thereon which rotates anti clockwise, on the small dust cage is an airflow guide cover 75 which connects with stripper bar.
  • the passive coarse-fibre removing is changed into initiative coarse-fibre removing.
  • the fibre layer after purifying are moved with the airflow along the airflow guide cover and condensed onto dust cage, then transferred out of the unit.
  • the capability to remove fine bristles and bristles of this structure is second-best only to the capability of feed plate, taker-in roller, beat roller and dust cage transferring unit, but because of the unique and very low fibre damage rate, this unit is fit for being the auxiliary unit of removing fine bristles, heteor typical fibres and dandruffs, so it can strengthen the capability of coarse-fibre removing, but not increase the fibre-damage rate too more.
  • the fibre-damage rate of this unit is normally below 0.6%, but this dehairing mode needs the feeding materials in single fibre form, unless it will be easy to drop fibre blocks.
  • Fig. 11 shows automatic circulation unit of flat strips, droppings by air taking and sending, which consists of a down collecting bin 79, fan 76, funnel 77 via pipeline connected with fan 76 and airflow cover 66.
  • the down collecting bin 79 locates in position above each feed lattice 1, its upper part is connected with the pipeline of fan 76, on its lower part there is a pair of filter-net feed rollers 68 positioned horizontally with opposite rotating direction, funnel 77 via pipeline connected with fan 76 is positioned under dehairing taker-in which is behind each dehairing unit with double-nose-like side feed plate, from entrance side of airflow cover 66 to its inner part where are success ively positioned stripper roller 61 and airflow guide knife 65, the entrance of airflow cover confronts to flat carrier dise 60 which is on the delivering end of dehairing flat 80.
  • Fig. 7 shows the schematic drawing for the structure of an embodiment of this combined dehairing machine, from left to right successively, it consists of a feed lattice 1, a set of double cylinder opening and coarse-fibre-throwing dehairing unit shown in Fig. 4( I in Fig. 7 ), two sets of dehairing unit with coarse-separating by seven rollers, condensing by doffer and airflow-transferring combined shown in Fig. 5 (II-1 and II-2 in Fig. 7 ), a set of unit with coarse separating by five parallel rollers, airflow suspension separating, transferring and delivering by filter-net-roller shown in Fig. 6 ( III in Fig.
  • Scoured cashmere is evenly fed into the dehairing unit with double cylinder opening and coarse-fibre-throwing and opened slightly and carded by this unit under the middle transferring roller, parts of coarses, kemps, medullated fibres are thrown out, then entered into two sets of dehairing unit with seven rollers airflow suspension. Through further opening and dehairing, with the action of the lower part of coarse-fibre-throwing roller and the action of airflow suspension separating, most of coarse fibres and heterotypical fibres are removed.
  • the finished products are transferred by doffer, then stripped and delivered from doffer roller by the oscillating stripping unit.
  • the reusable flat-strips and the droppings of the taker-in are returned through an independent air taking and sending unit to the feed lattice of the last process, then are fed to join in the technological circulation again.
  • Fig. 12 shows a schematic drawing of the auxiliary machine, it consists of feed lattice 1, behind feed lattice 1 are successively the dehairing unit with double-nose-like side feed plate 57, dehairing taker-in 54, big and small filter-net dust cages 42 44, a pair of feed roller 68, dehairing taker-in 54, big and small filter-net dust cages 42 44, and beat roller 70 under each dehairing taker-in 54 and airflow discharge knife 71.
  • the working principle of the auxiliary machine is as follows.
  • Droppings with high impurity content which can not be processed by the main machine are fed into auxiliary machine, punctured, dehaired, struck by taker-in of the double-nose-like side feed plate, and with the aid of the reaction of airflow layer which is below taker-in and above beat roller, most of coarse-fibres, impurities, dandruffs are separated.
  • the separated downs are gathered onto the big and small dust cage along the guide cover by airflow sphere, and condensed, then transferred to the second unit -- double roller taker-in unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP97908106A 1996-03-28 1997-03-18 Pneumatisches zylinderkarden verfahren und zusammengestellte spezifische karde für feine tierische haare Withdrawn EP0892095A4 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
CN96204893 1996-03-28
CN 96204893 CN2244058Y (zh) 1996-03-28 1996-03-28 双鼻阔给绒分梳板
CN96207393 1996-04-03
CN96207393U CN2244057Y (zh) 1996-04-03 1996-04-03 盖板花真空抄针和肤皮分离装置
CN96103392A CN1053023C (zh) 1996-04-10 1996-04-10 罗拉气流悬浮分梳方法及设备
CN96103392 1996-04-10
PCT/CN1997/000020 WO1997037067A1 (fr) 1996-03-28 1997-03-18 Procede de cardage pneumatique a cylindres et machine a carder combinee specifique pour poils d'animaux fins

Publications (2)

Publication Number Publication Date
EP0892095A1 true EP0892095A1 (de) 1999-01-20
EP0892095A4 EP0892095A4 (de) 1999-06-23

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Application Number Title Priority Date Filing Date
EP97908106A Withdrawn EP0892095A4 (de) 1996-03-28 1997-03-18 Pneumatisches zylinderkarden verfahren und zusammengestellte spezifische karde für feine tierische haare

Country Status (2)

Country Link
EP (1) EP0892095A4 (de)
WO (1) WO1997037067A1 (de)

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ITUB20160392A1 (it) * 2016-01-26 2017-07-26 Saldarini 1882 S R L Metodo di riempimento di un capo di abbigliamento imbottito e giubbotto imbottito

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Publication number Priority date Publication date Assignee Title
CN105350117B (zh) * 2015-12-08 2017-06-16 青岛东佳纺机（集团）有限公司 粗细纤维联合开松甩粗机
CN108677278A (zh) * 2018-03-23 2018-10-19 武汉纺织大学 一种特种动物纤维联合分梳设备
CN115369523B (zh) * 2022-09-15 2023-04-28 无锡城市职业技术学院 一种色纤维均匀混合装置和混合方法
CN117328175B (zh) * 2023-10-24 2024-03-12 河北康丰绒毛制品有限公司 一种羊毛分梳装置

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JPS569422A (en) * 1979-07-06 1981-01-30 Toray Ind Inc Staple fiber and animal hairlike filament yarn for downy hair component of animal hairlike fabric
GB2203175A (en) * 1987-04-07 1988-10-12 Hollingsworth Gmbh Opening and cleaning fibrous materials
US5446945A (en) * 1994-04-05 1995-09-05 Hachenberger; Steven C. Waste removal system for processing animal fibers

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20160392A1 (it) * 2016-01-26 2017-07-26 Saldarini 1882 S R L Metodo di riempimento di un capo di abbigliamento imbottito e giubbotto imbottito
EP3199681A1 (de) * 2016-01-26 2017-08-02 Trust Monti Fonti Verfahren zum füllen eines füllbaren teils eines zu polsternden kleidungsstücks und gepolstertes kleidungsstück
US11649569B2 (en) 2016-01-26 2023-05-16 Trust Monti Fonti Method for filling a fillable portion of a garment to be padded and padded garment

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WO1997037067A1 (fr) 1997-10-09
EP0892095A4 (de) 1999-06-23

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