CN100342072C - Production method of nonwoven fibrics - Google Patents
Production method of nonwoven fibrics Download PDFInfo
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- CN100342072C CN100342072C CNB2004100163927A CN200410016392A CN100342072C CN 100342072 C CN100342072 C CN 100342072C CN B2004100163927 A CNB2004100163927 A CN B2004100163927A CN 200410016392 A CN200410016392 A CN 200410016392A CN 100342072 C CN100342072 C CN 100342072C
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- feeding box
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Abstract
The present invention relates to a producing method of non-woven fabric. The present invention mainly solves the problems that fibre noil is not uniform in a ventilation wind box of a cotton feeding box in production equipment of original technique; the structure of the production equipment is complicated; mechanical failures often exist; the non-woven fabric has narrow door breadth, so uniform product quality is difficult to ensure. An adjustable air exhausting plate is arranged on at least one ventilation side of the ventilation box in the cotton feeding box which is equipment for producing non-woven fabric, and a hole plate nozzle is forwardly arranged in the inner part of a fibre uniform distribution device. The present invention uses the technical scheme to solve the problems effectively. The present invention can be used in industrial production of non-woven fabric.
Description
Technical field
The present invention relates to a kind of production method of nonwoven fabric.
Background technology
In current textile industry, fiber such as polypropylene fibre, polyvinyl, terylene, acrylic fibers, polyamide fibre, viscose, cotton fiber or the like are by the opener shredding, be delivered directly to cotton feeding box with streamer mode, be formed on the fibrage that all remains in the permissible variation scope on horizontal stroke, the vertical distribution and offer carding machine automatically continuously and stably, cut edge through comb and parallel cotton fibers prior to spinning, lapping, recovery cutter, hot pressing turbine hot-roll forming, coiling machine batches nonwoven fabric, last banding machine cut the nonwoven fabric product, realize the automated production nonwoven fabric.Hired roughneck and vibration plate are installed in the cotton feeding box that has in the prior art; Be provided with the hired roughneck in the cotton feeding box that has in addition and cooperate air pressure control.Though it is cotton that these can be fed automatically, inhomogeneous, the vertical arrangement of fiber cross direction profiles is easy to be the fish scale sheet, influences carding quality, is difficult to guarantee product quality.
In order to address these problems report among the document CN89206577.X " twice Weighing type feeder structure of scribbling set ": change drive path by gear-box and improve the feeding uniformity with the speed double speed.Though, improved vertical uniformity with the speed feeding of weighing for twice, be confined to the product of woolen spinning high grade yarn, restricted to improving production capacity.Document CN1024821C proposed in " predetermined amounts distributes the metering method and the metering device of bulk fibre ": install two in bulk fibre chute lower end and rotate feed roller in opposite direction, form one therebetween and transmit the gap, an opening roller is installed below two feed rollers.Though can measure a ratio in two feed roller gap X or this gap like this, regulate the rotating speed of at least one feed roller, make the product in speed and gap keep constant, at least mean value keeps constant, the mechanical structure measuring and regulate and corresponding gearing thereof, equipment cost improve, the parts fault increases but need increase, and little to fiber cross direction profiles quality raising effect.Report among the document CN2104227U " positive displacement feeding mechanism ": positive displacement feeding hopper and infrared electro are surveyed feeding hopper fibrage control electromagnetic clutch or are directly controlled motor power and make the spiked lattice feed and stop material.Though control volume case feeding with the mature infrared photoelectric technology in the document, the parts number reduces to some extent, but fiber is only regulated the spacing of refining rake and spiked lattice in length and breadth to even distribution, rely on refining rake arc up and down to swing and control, be only applicable to the manufacturing of wool spinning, wool top, carded bar and thick nonwoven fabric.Propose among the document CN2181513Y " the automatic cotton feeding box of comb and parallel cotton fibers prior to spinning ": preparation has some counter extensioin pairs of rollers, hello cotton roller to connect with autoleveller in the cotton feeding box.Though some like this counter extensioin pairs of rollers can make fiber present preferably and vertically arrange, autoleveller can make feeding of fiber continuous effective cotton, effect structure and corresponding power thereof and gearing, equipment cost improve, the parts fault increases, and the fiber cross direction profiles improved little but need increase.
Above-mentioned several technology is the various adjusting measures of taking at horizontal, vertical skewness at fiber.CN2181513Y sets up autoleveller, and CN1024821C sets up opening roller, adopts mechanical measure, regulate by mechanical friction power, but effect is limited on vertically distributing, and is difficult to improve the fiber cross direction profiles, and all has in the cotton feeding box problem of fiber noil inequality in the permeability type bellows.Adopt measurement and automatic control means such as secondary weighing, photoelectricity volume, produce effect, but be difficult to use at thin layer nonwoven fabric carding machine for thick and heavy fiber.These technology all need to increase adjusting mechanical structure and corresponding transmission thereof, regulate parts, parts parts fault increases, the maintaining difficulty increases.For the cotton feeding box of door 200 centimetres, a door width of cloth that reclaims cutter in lapping fixes on 180 centimetres, can not be wide again, and after the cutting edge (2～3 centimetres) * 2, non-woven fabrics quality is at ± 2.5 gram/rice
2, 10～30% scopes can not reach in both sides ± 1.5 gram/rice
2, be difficult to guarantee the yield rate of product.The hot rolling linear speed also can only fix on 60～65 meters/minute, can not be big again, also influence equipment capacity.
Summary of the invention
Technical problem to be solved by this invention is all to have in the cotton feeding box fiber noil inequality in the permeability type bellows in the above-mentioned document, the production equipment complex structure, mechanical breakdown is many, and the nonwoven fabric door is narrow, and be difficult to guarantee the problem of uniform in quality, a kind of production method of new nonwoven fabric is provided.It is even that this method has in the cotton feeding box in the permeability type bellows fiber noil, and production equipment mechanical structure is simple, and the nonwoven fabric door fabric width of producing, the advantage that quality is uniform and stable.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows: a kind of production method of nonwoven fabric may further comprise the steps successively:
A) fiber at first by after the opener shredding, is sent into cotton feeding box in the gas delivery mode;
B) fiber goes out cotton feeding box through pan feeding bellows, permeability type bellows, the even distributor of fiber, pan feeding roller, hired roughneck's wheel, jolting plate, adjusting wheels, discharging roller and reclaiming plate successively and enters carding machine in cotton feeding box;
C) through comb and parallel cotton fibers prior to spinning, lapping, recovery cutter cut edge, hot pressing turbine hot-roll forming and banding machine cut nonwoven fabric; Wherein the ventilative side of at least one of permeability type bellows is provided with and can regulates the air draft plate, have aperture heterogeneous or cross bore on the air draft plate, the distribution on the air draft plate of aperture or cross bore is uniformly distributed in the whole space of permeability type bellows with the fiber that satisfies the pan feeding bellows and fall; Forward is equipped with an orifice plate nozzle, orifice plate charging aperture diameter D in the even distributor of fiber
1With orifice plate discharging opening D
2Ratio D
1/ D
2Be 5～20, orifice plate acute angle starting point is to the radial spacing L and the orifice plate discharging opening diameter D of orifice plate discharging opening
2Ratio L/D
2Be 1～10; On the both sides of reclaiming plate an inflatable mouth is installed respectively, the gas that blows out is regulated the width of nonwoven fabric.
In the technique scheme, aperture or the cross bore distribution preferred version on the air draft plate is that two ends, the left and right sides are closeer, middle sparse or not perforate, and the maximum gauge preferable range of aperture or cross bore is 0.5～6 centimetre, more preferably scope is 2～3 centimetres.D
1/ D
2The ratio preferable range be 8～15, L/D
2The ratio preferable range be 2～6.
Be provided with at least one ventilative side of the permeability type bellows on casing top and can regulate the air draft plate, can regulate the air draft plate can be made by general common material, as metal material, timber, papery, macromolecular material or the like, preferably be easy to eliminate with gas current friction after form the material of static, perhaps with behind the gas current friction be difficult to form the material of static.Adjust the air draft area by perforate quantity and density on the air draft plate, regulate exhaust resistance by opening diameter.By the air draft mode of adjusting the air draft area, regulating exhaust resistance, make the effective disturbance of permeability type bellows internal gas flow, Flow Field Distribution is reasonable and stable, impel fiber in the inner settlement stability of permeability type bellows, evenly distribution, improve the yield rate of nonwoven fabric product thus, and can produce wide door width of cloth product, increase its output.
On cotton feeding box top the even distributor of fiber is set.The shape of the even distributor of fiber can triangle, rectangle, trapezoidal, round rectangle, fillet be trapezoidal, also can circular arc, camber line shape, broken line shape or the like.The even distributor of fiber can be made by general ganoid material, as metal material, macromolecular material or the like, preferably be easy to eliminate with fibre frictoin after form the material of static, perhaps with behind the used fibre frictoin form the material that static is the same sex.The regulative mode of the even distributor of fiber can be provided with an orifice plate nozzle in the even distributor of fiber, regulate the distribution space that is connected with the permeability type bellows.By regulating the distribution space that is connected with the permeability type bellows that the even distributor of fiber provides, by regulating the air draft mode of air draft plate on the even distributor of fiber, make in the reasonable disturbance of air-flow at place, this space and stable, impel fiber at permeability type bellows and the inner settlement stability of the even distributor of fiber, evenly distribute.
On the improvement cotton feeding box, the even distributor of fiber is set and can regulates the air draft plate, by pan feeding bellows, permeability type bellows, the even distributor of fiber with can regulate the comprehensive function of air draft plate, pan feeding roller, collection hopper, in collection hopper discharging place fiber is all effectively evenly distributed in vertical distribution of the cross direction profiles of moment, accumulation, remain in the required permissible variation scope.The fiber of gas delivery automatically offers carding machine through having even distributor of fiber and the cotton feeding box that can regulate the air draft plate, then cuts edge through comb and parallel cotton fibers prior to spinning, lapping, recovery cutter, hot pressing turbine hot-roll forming, coiling machine batches nonwoven fabric, and last banding machine is cut, and obtains the nonwoven fabric product.Improve the yield rate of nonwoven fabric product thus, and can produce wide door width of cloth product, increase its output, owing to do not increase mechanical driving device in the cotton feeding box, make production equipment mechanical structure simple in addition, obtained better technical effect.
Description of drawings
Accompanying drawing 1 is the structural representation of cotton feeding box among the present invention.
Accompanying drawing 2 is the cutaway view of cotton feeding box among the present invention.
The orifice plate nozzle of accompanying drawing 3 for being provided with in the even distributor of fiber.
In accompanying drawing 1 and the accompanying drawing 2,1 is the pan feeding bellows, and 2 is the permeability type bellows, and 3 is the even distributor of fiber, and 4 for can regulate the air draft plate, and 5 is the pan feeding roller, and 6 are hired roughneck's wheel, and 7 is jolting plate, and 8 are the collection hopper, and 9 for regulating wheels, and 10 are the discharging roller, and 11 is reclaiming plate.
The invention will be further elaborated below by embodiment, but the scope of the invention is not limited in this.
The specific embodiment
[embodiment 1]
Polypropylene fiber is by the opener shredding, be delivered directly to cotton feeding box with streamer mode, adopt the technology of Fig. 1 of the present invention at cotton feeding box, provide carding machine fiber, cut edge through comb and parallel cotton fibers prior to spinning, lapping, recovery cutter, hot pressing turbine hot-roll forming, coiling machine batches nonwoven fabric, and last banding machine is cut and is obtained the nonwoven fabric product.Wherein can regulate air draft plate 4, two ends aperture densification, not perforate of centre, the aperture maximum gauge is 3 centimetres, forward is by the orifice plate nozzle of dress Fig. 3, D in the even distributor of fiber
1/ D
2=10, L/D
2Be 4.For the process units of door 200 centimetres of cotton feeding boxes, produce 17 gram/rice
2The process conditions and the product quality of nonwoven fabric are as shown in table 1.
[comparative example 1]
Polypropylene fiber is by the opener shredding, be delivered directly to cotton feeding box with streamer mode, adopt the prior art that is provided with the hired roughneck and cooperates air pressure to control to provide carding machine fiber at cotton feeding box, cut edge through comb and parallel cotton fibers prior to spinning, lapping, recovery cutter, hot pressing turbine hot-roll forming, coiling machine batches nonwoven fabric, and last banding machine is cut and obtained the nonwoven fabric product.Just permeability type bellows side does not have the air draft plate, for the process units of door 200 centimetres of cotton feeding boxes, produces 17 gram/rice
2The process conditions and the product quality of nonwoven fabric are as shown in table 1.
[embodiment 2]
Polypropylene fiber is by the opener shredding, be delivered directly to cotton feeding box with streamer mode, adopt the technology of Fig. 1 of the present invention at cotton feeding box, provide carding machine fiber, cut edge through comb and parallel cotton fibers prior to spinning, lapping, recovery cutter, hot pressing turbine hot-roll forming, coiling machine batches nonwoven fabric, and last banding machine is cut and is obtained the nonwoven fabric product.Wherein can regulate air draft plate 4, two ends aperture densification, not perforate of centre, the aperture maximum gauge is 2 centimetres, the orifice plate nozzle of forward installation diagram 3 in the even distributor of fiber, D
1/ D
2=8, L/D
2=2, for the process units of door 200 centimetres of cotton feeding boxes, produce 20 gram/rice
2The process conditions and the product quality of nonwoven fabric are as shown in table 1.
[comparative example 2]
Polypropylene fiber is by the opener shredding, be delivered directly to cotton feeding box with streamer mode, adopt the prior art that is provided with the hired roughneck and cooperates air pressure to control to provide carding machine fiber at cotton feeding box, cut edge through comb and parallel cotton fibers prior to spinning, lapping, recovery cutter, hot pressing turbine hot-roll forming, coiling machine batches nonwoven fabric, and last banding machine is cut and obtained the nonwoven fabric product.Just permeability type bellows side does not have the air draft plate, does not have the orifice plate nozzle in the even distributor of fiber, for the process units of door 200 centimetres of cotton feeding boxes, produces 20 gram/rice
2The process conditions and the product quality of nonwoven fabric are as shown in table 1.
[embodiment 3]
Polypropylene fiber is by the opener shredding, be delivered directly to cotton feeding box with streamer mode, adopt the technology of Fig. 1 of the present invention at cotton feeding box, provide carding machine fiber, cut edge through comb and parallel cotton fibers prior to spinning, lapping, recovery cutter, hot pressing turbine hot-roll forming, coiling machine batches nonwoven fabric, and last banding machine is cut and is obtained the nonwoven fabric product.Wherein can regulate air draft plate 4, two ends cross bore densification, middle sparse, the cross bore maximum gauge is 5 centimetres, the orifice plate nozzle of forward installation diagram 3 in the even distributor of fiber, D
1/ D
2=12, L/D
2=6, for the process units of door 200 centimetres of cotton feeding boxes, produce 25 gram/rice
2The process conditions and the product quality of nonwoven fabric are as shown in table 1.
[comparative example 3]
Polypropylene fiber is by the opener shredding, be delivered directly to cotton feeding box with streamer mode, adopt the prior art that is provided with the hired roughneck and cooperates air pressure to control to provide carding machine fiber at cotton feeding box, cut edge through comb and parallel cotton fibers prior to spinning, lapping, recovery cutter, hot pressing turbine hot-roll forming, coiling machine batches nonwoven fabric, and last banding machine is cut and obtained the nonwoven fabric product.Just permeability type bellows side does not have the air draft plate, does not have the orifice plate nozzle in the even distributor of fiber, for the process units of door 200 centimetres of cotton feeding boxes, produces 25 gram/rice
2The process conditions and the product quality of nonwoven fabric are as shown in table 1.
Contrast before and after table 1 patented technology of the present invention is implemented
| The nonwoven fabric specification, gram/rice 2 | 17 | 20 | 25 | |||
| Contrast before and after implementing | Comparative example 1 | | Comparative example 2 | | Comparative example 3 | |
| Reclaim a cutter side cut door width of cloth, centimetre | 180 | 195 | 180 | 195 | 180 | 193 |
| The hot-roll forming linear speed, rice/minute | 65 | 75 | 60 | 70 | 60 | 65 |
| Cutting edge, cm x 2 | 2～3 | 2～3 | 2～3 | 2～3 | 2～3 | 2～3 |
| The daily output, ton/sky | 2.8 | 3.5 | 2.8 | 3.3 | 3.0 | 3.8 |
| Non-woven fabrics quality, gram/rice 2 | 17±2.5 | 17±1.5 | 20±2.5 | 20±1.5 | 25±2.5 | 25±2.0 |
Claims (6)
1, a kind of production method of nonwoven fabric may further comprise the steps successively:
A) fiber at first by after the opener shredding, is sent into cotton feeding box in the gas delivery mode;
B) fiber goes out cotton feeding box through pan feeding bellows, permeability type bellows, the even distributor of fiber, pan feeding roller, hired roughneck's wheel, jolting plate, adjusting wheels, discharging roller and reclaiming plate successively and enters carding machine in cotton feeding box;
C) through comb and parallel cotton fibers prior to spinning, lapping, recovery cutter cut edge, hot pressing turbine hot-roll forming and banding machine cut nonwoven fabric;
At least one the ventilative side setting that it is characterized in that the permeability type bellows can be regulated the air draft plate, have aperture heterogeneous or cross bore on the air draft plate, the distribution on the air draft plate of aperture or cross bore is uniformly distributed in the whole space of permeability type bellows with the fiber that satisfies the pan feeding bellows and fall; Forward is equipped with an orifice plate nozzle, orifice plate charging aperture diameter D in the even distributor of fiber
1With orifice plate discharging opening D
2Ratio D
1/ D
2Be 5～20, orifice plate acute angle starting point is to the radial spacing L and the orifice plate discharging opening diameter D of orifice plate discharging opening
2Ratio L/D
2Be 1～10; On the both sides of reclaiming plate an inflatable mouth is installed respectively, the gas that blows out is regulated the width of nonwoven fabric.
2, according to the production method of the described nonwoven fabric of claim 1, it is characterized in that aperture or cross bore on the air draft plate to be distributed as two ends, the left and right sides closeer, middle sparse or not perforate.
3, according to the production method of the described nonwoven fabric of claim 1, the maximum gauge that it is characterized in that aperture or cross bore is 0.5～6 centimetre.
4, according to the production method of the described nonwoven fabric of claim 3, the maximum gauge that it is characterized in that aperture or cross bore is 2～3 centimetres.
5, according to the production method of the described nonwoven fabric of claim 1, it is characterized in that D
1/ D
2Ratio be 8～15.
6, according to the production method of the described nonwoven fabric of claim 1, it is characterized in that L/D
2Ratio be 2～6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100163927A CN100342072C (en) | 2004-02-18 | 2004-02-18 | Production method of nonwoven fibrics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100163927A CN100342072C (en) | 2004-02-18 | 2004-02-18 | Production method of nonwoven fibrics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1657677A CN1657677A (en) | 2005-08-24 |
| CN100342072C true CN100342072C (en) | 2007-10-10 |
Family
ID=35007374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100163927A Expired - Fee Related CN100342072C (en) | 2004-02-18 | 2004-02-18 | Production method of nonwoven fibrics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100342072C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614006B (en) * | 2009-07-09 | 2013-01-09 | 宜兴市鑫泰土工材料有限公司 | Drainage plate for silt consolidation, filter cloth and drainage plate core |
| CN102373516B (en) * | 2011-10-19 | 2012-10-10 | 江苏迎阳无纺机械有限公司 | Air flow net forming machine |
| CN103668565A (en) * | 2013-11-29 | 2014-03-26 | 山东新力环保材料有限公司 | Pneumatic hopper |
| CN103882625B (en) * | 2014-04-04 | 2016-08-17 | 长兴县志纬服装辅料有限公司 | A kind of non-woven fabric production system |
| CN106835905A (en) * | 2017-04-21 | 2017-06-13 | 上海汇城建筑装饰有限公司 | Fiber spread case |
| CN109371572B (en) * | 2018-11-15 | 2023-12-19 | 山东日发纺织机械有限公司 | Thickness adjusting device for pneumatic cotton feeding box |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4169632A (en) * | 1976-08-24 | 1979-10-02 | Rieter Machine Works, Limited | Pneumatic system for feeding a plurality of cards with open fiber flocks |
| DE3036697A1 (en) * | 1979-10-01 | 1981-04-30 | Agence Nationale De Valorisation De La Recherche (Anvar), Paris | METHOD AND DEVICE FOR DETERMINING THE IRREGULARITIES OF A RIBBON |
| US4661025A (en) * | 1983-10-08 | 1987-04-28 | Hergeth Hollingsworth Gmbh | Apparatus for forming a fiber column in a chute feed |
| CN2062338U (en) * | 1989-04-29 | 1990-09-19 | 中国纺织大学 | Two-time weighing wool feeding device for carding set |
| CN2181513Y (en) * | 1993-12-01 | 1994-11-02 | 卓文泰 | Automatic feed box for carding |
| GB2340138A (en) * | 1998-06-12 | 2000-02-16 | Truetzschler Gmbh & Co Kg | Feed apparatus for a spinning preparation machine |
| CN1445393A (en) * | 2003-04-09 | 2003-10-01 | 曹晓峰 | Device for feeding cotton evenly |
-
2004
- 2004-02-18 CN CNB2004100163927A patent/CN100342072C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4169632A (en) * | 1976-08-24 | 1979-10-02 | Rieter Machine Works, Limited | Pneumatic system for feeding a plurality of cards with open fiber flocks |
| DE3036697A1 (en) * | 1979-10-01 | 1981-04-30 | Agence Nationale De Valorisation De La Recherche (Anvar), Paris | METHOD AND DEVICE FOR DETERMINING THE IRREGULARITIES OF A RIBBON |
| US4661025A (en) * | 1983-10-08 | 1987-04-28 | Hergeth Hollingsworth Gmbh | Apparatus for forming a fiber column in a chute feed |
| CN2062338U (en) * | 1989-04-29 | 1990-09-19 | 中国纺织大学 | Two-time weighing wool feeding device for carding set |
| CN2181513Y (en) * | 1993-12-01 | 1994-11-02 | 卓文泰 | Automatic feed box for carding |
| GB2340138A (en) * | 1998-06-12 | 2000-02-16 | Truetzschler Gmbh & Co Kg | Feed apparatus for a spinning preparation machine |
| CN1445393A (en) * | 2003-04-09 | 2003-10-01 | 曹晓峰 | Device for feeding cotton evenly |
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| Publication number | Publication date |
|---|---|
| CN1657677A (en) | 2005-08-24 |
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