EP3268517A1 - Device for overlapping, crossing, and transferring textile fibres, and method thereof - Google Patents
Device for overlapping, crossing, and transferring textile fibres, and method thereofInfo
- Publication number
- EP3268517A1 EP3268517A1 EP15738990.9A EP15738990A EP3268517A1 EP 3268517 A1 EP3268517 A1 EP 3268517A1 EP 15738990 A EP15738990 A EP 15738990A EP 3268517 A1 EP3268517 A1 EP 3268517A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conveyor belt
- textile fibres
- fibres
- flow
- textile
- 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.)
- Granted
Links
- 239000004753 textile Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000009960 carding Methods 0.000 claims abstract description 17
- 238000000151 deposition Methods 0.000 claims abstract description 3
- 238000005096 rolling process Methods 0.000 claims description 42
- 238000002156 mixing Methods 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G25/00—Lap-forming devices not integral with machines specified above
-
- 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
- D01G15/12—Details
- D01G15/40—Feeding apparatus
- D01G15/42—Feeding from laps
Definitions
- TITLE "Device for overlapping, crossing and transferring textile fibres, and method thereof"
- the present invention relates to a device for overlapping, crossing and transferring textile fibres, as well as to a related process.
- the invention also relates to an innovative carding set and an innovative carding method.
- This process turns out to be useful, for example, for preparing a high-quality layer to be subjected to further processing steps in the textile industry.
- one of the advantages of the present invention is the possibility of obtaining a high-quality layer of overlapped and crossed fibres, while ensuring high productivity. Constant thickness and density can also be ensured throughout the obtained fibre mattress.
- FIG. 1 is a schematic perspective view of a first variant according to the present invention.
- the device of the invention comprises:
- setting-out device 10 for receiving the textile fibres from said first conveyor belt Tl and depositing them on a second conveyor belt T2, said setting-out device 10 being susceptible of moving in a reciprocating motion along a direction x.
- Setting-out device 10 essentially carries out a folding operation, and is also called “translating folding cart” or "folding element”.
- the second conveyor belt T2 is adapted to move the textile fibres along a direction y, belonging to a plane perpendicular to said direction x, in a forward-backward reciprocating motion, wherein, in the total motion, the forward component is much greater than the backward component, for the purpose of producing a flow, in particular a continuous flow, of overlapped textile fibres.
- a final transportation system is also comprised for carrying away the flow of textile fibres previously overlapped and crossed. It must be pointed out that the flow of fibres exiting the device of the invention is formed by fibres that have been overlapped and crossed by means of the present device. In other words, the output flow of fibres forms a "mattress" of fibres that have been previously overlapped and crossed.
- the device in particular the final transportation system, includes:
- an overturning unit T3 capable of receiving the flow of textile fibres exiting said second conveyor belt T2, and adapted to overturn them in order to lay them on said final conveyor belt T4.
- FIG. 1 shows some straight arrows indicating the direction along which the respective component or a part thereof moves.
- directions x and y are mutually orthogonal when viewed from above.
- Conveyor belt Tl shown in Figure 1 receives the thin input layer of fibres and transports them along a line of action which is parallel to direction x, in particular towards the right-hand part of the figure.
- Said conveyor belt Tl comprises a rolling surface 14 supported by at least one pair of rollers 16 capable of rotating.
- one of such rollers 16 is a drive roller and the other one is a driven roller.
- both rollers 16 are drive rollers.
- conveyor belt Tl as well as the second conveyor belt T2 and final conveyor belt T4, can be implemented by including elements which are per se known, such as intermediate support rollers, or support surfaces, ensuring a sufficiently straight transportation surface, etc.
- Rolling surface 14 of conveyor belt Tl is conveniently a substantially continuous surface, e.g. a band-like surface.
- said rolling surface 14 comprises a succession of mutually constrained links or plates forming a rolling surface capable of supporting and transporting the fibres; in other words, rolling surface 14 may be similar to a track or a tapis distr.
- conveyor belts T2 and T4 are conveniently a substantially continuous surface, e.g. a band-like surface.
- Setting-out device 10 receives the fibres from the first conveyor belt Tl and, as it moves, it arranges the fibres along the line of action x. In particular, setting- out device 10 translates in a reciprocating motion along said direction x.
- setting-out device 10 comprises a pair of rotary cylinders (designated by number 10) susceptible of rotating about respective axes of rotation perpendicular to direction x, and susceptible of translating in a reciprocating motion parallel to said direction x.
- the flow of fibres must pass through said rotary cylinders 10.
- Rotary cylinders 10 translate simultaneously in a reciprocating motion along direction x; in other words, they translate as a pair (in the illustrated example they translate to the right and to the left) .
- the reciprocating motion of setting-out device 10 causes the input textile fibres to overlap, thus overlapping multiple folds of the layer of fibres on the second conveyor belt T2.
- letter F designates a flow of fibres coming from the first conveyor belt Tl and directed towards rotary cylinders 10.
- the second conveyor belt T2 comprises rolling surface 12, which moves in a forward-backward reciprocating motion (along direction y) , wherein, in the total motion, the forward component is much greater than the backward component, for the purpose of producing a flow of overlapped textile fibres at the exit of conveyor belt T2.
- rolling surface 12 rotates alternately forwards and backwards.
- the forward motion of the part of rolling surface 12 that is in contact with the fibres is greater than the backward motion of the same part of rolling surface 12.
- rolling band 12 goes forwards by 10 cm and then backwards by 9 cm; the result is a 1cm advance at every forward-backward cycle of the reciprocating motion of the second conveyor belt T2.
- the part of rolling surface 12 which is in contact with the fibres is the upper one, since the fibres come from setting-out device 10, which is arranged on top of the second conveyor belt T2.
- the second conveyor belt T2 moves such fibres in a forward-backward reciprocating motion perpendicular to x (i.e. along y) .
- the fibres are overlapped and crossed.
- the fibres are overlapped and crossed according to a variable-angle diagonal, depending on the travel and speed of conveyor belt T2.
- One advantage offered by the invention is the possibility of working continuously, receiving an input flow of fibres and producing a continuous output flow of overlapped and crossed fibres.
- the output flow of fibres can be controlled by the taker-in cylinders of any machine located downstream of the whole device described herein.
- direction x is horizontal.
- rolling surface 12 of the second conveyor belt T2 is prevalently arranged in a horizontal plane; in other words, the second conveyor belt T2 is horizontal.
- rolling surface 14 of the first conveyor belt Tl is prevalently arranged in a horizontal plane; in other words, the second conveyor belt Tl is horizontal.
- the final conveyor belt T4 is horizontal.
- the final conveyor belt T4 carries the fibres along a line of action parallel to said line of action x. In this manner, the direction of the flow of textile fibres, previously overlapped and crossed to form a substantially homogeneous mattress, exiting from T4 is substantially parallel to the direction of the flow of fibres moving on Tl .
- rolling surface 12 of said second conveyor belt T2 comprises a plurality of apertures; and the device comprises suction means capable of sucking air through at least a part of said plurality of apertures.
- Such apertures may be, for example, holes or slots on rolling surface 12.
- the apertures may consist of the interstices between such links or plates.
- the suction means suck air from the outer surface of rolling surface 12 (i.e. the one intended to come in contact with the textile fibres) towards the inner one, in order to keep the layer of textile fibres in adherence to rolling surface 12, in particular to the outer surface thereof. This minimizes the risk that the fibres might slide on surface 12, thus avoiding the resulting adverse effects on the production of overlapped fibres.
- the suction means comprise one or more suction mouths arranged in the inner part of the rolling surface, and located in proximity to said apertures, for the purpose of creating said aerodynamic sucking effect.
- the suction mouths are only directed towards that part of rolling surface 12 which is intended to come in contact with the fibres, i.e. the part facing upwards.
- the first conveyor belt Tl is arranged at the top.
- the second conveyor belt T2 is arranged under the first conveyor belt Tl.
- Overturning unit T3 is arranged under the second conveyor belt T2.
- Final conveyor belt T4 is arranged under overturning unit T3.
- overturning unit T3 includes a third rolling transportation surface, capable of transporting the flow of overlapped and crossed fibres along a direction yl belonging to a plane perpendicular to said direction x, and having an oblique end side 20, inclined by approx. 45° relative to said direction yl, on which said rolling surface slides. Therefore, the third rolling transportation surface (in particular, when viewed from above) is essentially shaped like a rectangular trapezoid, the oblique side 20 being the inclined side thereof.
- the third rolling transportation surface of overturning unit T3 is prevalently arranged in a horizontal plane; in other words, the third rolling transportation surface is horizontal.
- the upper part of the third rolling surface is intended to receive the overlapped and crossed textile fibres from the second conveyor belt T2.
- the third rolling surface comprises:
- Pulleys pi, pn are aligned to form oblique side 20. Therefore, drive cylinder 22 is the height of said rectangular trapezoid. Therefore, oblique side 20 is inclined relative to drive cylinder 22, in particular by 45° .
- Belt 24 is tightened between drive cylinder 22 and pulleys pi, pn .
- belt 24 moves, when it is in the upper part of the third rolling surface, in the direction indicated by the arrow yl, i.e. from drive cylinder 22 towards the first pulley pi.
- belt 24 returns towards drive cylinder 22, running along the lower part of the third rolling surface.
- belt 24 returns towards the second pulley p2, and so on until the last pulley pn .
- Belt 24 exiting the last pulley pn returns, through suitable transmission means, to the initial end of drive cylinder 22 to restart its cycle, i.e. to run towards the first pulley pi.
- said transmission means include a plurality of idle pulleys (in particular three pulleys, designated rl, r2, r3) .
- the outer surface of drive cylinder 22 comprises a plurality of grooves.
- belt 24 slides in a guided manner, so that belt 24 will stay in the predetermined positions throughout the length of drive cylinder 22.
- the third rolling transportation surface of overturning unit T3 comprises a plurality of belts, wherein each belt is adapted to move in a rolling motion between drive cylinder 22 and a respective idle pulley belonging to said plurality of idle pulleys pi, p2, pn .
- the outer surface of drive cylinder 22 comprises a plurality of grooves, wherein a respective belt is adapted to run in each groove.
- the fibres After the fibres have been overlapped and crossed on the second conveyor belt T2 (thus forming a sort of mattress), they fall onto the third rolling transportation surface of overturning unit T3, in the proximity of drive cylinder 22; then they are carried towards oblique side 20. At this point, the fibres will fall, on the oblique side 20, onto the final conveyor belt T4. Oblique side 20 allows the fibres that are moving along yl on the third rolling transportation surface to be overturned and placed onto the final conveyor belt T4, which moves parallel to x. In practice, thanks to said oblique side 20, the fibres are overturned by substantially 90°, in that direction yl is substantially perpendicular, when viewed from above, to direction x.
- the device comprises motor means adapted to impart a drive force to at least one of: the first conveyor belt Tl, setting-out device 10, the second conveyor belt T2, overturning unit T3, final conveyor belt T4.
- motor means adapted to impart a drive force to at least one of: the first conveyor belt Tl, setting-out device 10, the second conveyor belt T2, overturning unit T3, final conveyor belt T4.
- the device comprises a control unit for controlling and coordinating at least the operation of said first conveyor belt Tl, said setting-out device 10, said second conveyor belt T2, according to criteria that may be predefined or selected by a user.
- the control unit also coordinates the operation of overturning unit T3 and of final conveyor belt T4.
- the control unit coordinates the operation of the motor means.
- the user can modify at will some operating settings, including, for example, the transportation speed of Tl, T2, and conveniently also of T3 and T4, the translation speed (and possibly also the rotation of rotary cylinders 10) of setting-out device 10.
- running speed of T2 is equal to the transportation speed of Tl divided by the desired number of overlaps.
- transportation speed of Tl equal to 60 metres/minute
- desired number of overlaps equal to 40
- many other parameters can also be set, depending on various factors, such as required productivity, type of treated fibres (e.g. wool, cotton, synthetic, artificial, metallic, aramidic, etc.), required number of overlaps, average travel of T2, etc .
- the present invention also relates to a carding set comprising:
- a second carding machine (not shown) arranged downstream of said device, with reference to the flow of textile fibres.
- the carding set prevalently extends longitudinally, parallel to the axis x, and comprises overturning unit T3 and final conveyor belt T4.
- step d includes the step of:
- step c includes the step of:
- this innovative carding process can be carried out on fibres such as: wool, cotton, synthetic, artificial, metallic, aramidic, etc.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO20150158 | 2015-03-09 | ||
PCT/IB2015/054379 WO2016189360A1 (en) | 2015-03-09 | 2015-06-10 | Device for overlapping, crossing, and transferring textile fibres, and method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3268517A1 true EP3268517A1 (en) | 2018-01-17 |
EP3268517B1 EP3268517B1 (en) | 2021-08-04 |
Family
ID=53053041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15738990.9A Active EP3268517B1 (en) | 2015-03-09 | 2015-06-10 | Device for overlapping, crossing, and transferring textile fibres, and method thereof |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3268517B1 (en) |
ES (1) | ES2893400T3 (en) |
WO (1) | WO2016189360A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201900004175A1 (en) | 2019-03-22 | 2020-09-22 | Ratti S P A | PROCEDURE FOR THE REALIZATION OF A TEXTILE PRODUCT FOR PADDING |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3673757A (en) * | 1971-01-04 | 1972-07-04 | Arnold L Willis | Method of making pillows |
IT1184011B (en) * | 1985-12-11 | 1987-10-22 | Fonderie Officine Riunite Ing | DEVICE FOR THE PRODUCTION OF OVERLAPS OF NON-WOVEN FABRIC WITH FIBERS LONGITUDINALLY PLACED PARTICULARLY FOR THE FEEDING OF A NEEDLE QUILTING MACHINE |
SI20812B (en) * | 2001-01-26 | 2009-10-31 | TERMO, d.d., Industrija termičnih izolacij, Škofja Loka | Device and process for formation of layers of rock wool fibres and similar fibrous insulating materials |
-
2015
- 2015-06-10 WO PCT/IB2015/054379 patent/WO2016189360A1/en active Application Filing
- 2015-06-10 EP EP15738990.9A patent/EP3268517B1/en active Active
- 2015-06-10 ES ES15738990T patent/ES2893400T3/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2016189360A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP3268517B1 (en) | 2021-08-04 |
WO2016189360A1 (en) | 2016-12-01 |
ES2893400T3 (en) | 2022-02-09 |
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