EP0485014A1 - Mixing structure for staple material, especially cotton staples - Google Patents
Mixing structure for staple material, especially cotton staples Download PDFInfo
- Publication number
- EP0485014A1 EP0485014A1 EP91202811A EP91202811A EP0485014A1 EP 0485014 A1 EP0485014 A1 EP 0485014A1 EP 91202811 A EP91202811 A EP 91202811A EP 91202811 A EP91202811 A EP 91202811A EP 0485014 A1 EP0485014 A1 EP 0485014A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixer
- bins
- structure according
- mixing
- feed direction
- 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
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G13/00—Mixing, e.g. blending, fibres; Mixing non-fibrous materials with fibres
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G23/00—Feeding fibres to machines; Conveying fibres between machines
- D01G23/02—Hoppers; Delivery shoots
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G23/00—Feeding fibres to machines; Conveying fibres between machines
- D01G23/08—Air draught or like pneumatic arrangements
Definitions
- This invention relates to a mixing structure for staple material, especially cotton staples.
- the bins are generally filled to different levels, wherein those bins closest to the feed side of the material have a higher level of material and this level gradually decreases towards the final bin, i.e. the bin furthest away from the feed side.
- the system of distributing the material to the various bins also involves perceptible rarefaction of the material as it approaches the final bin, so that, in addition to having an increasingly lower level, the material is also decreasingly compact from one bin to the next. Consequently, the material has a different degree of compaction at the outlet of the various bins, where feed and mixing rollers are disposed, thus resulting in non-homogeneous mixing, wherein quantities of material originally having the same characteristics are mixed together in different states at the outlet of the bins.
- the transportation conditions for the material taken directly from the conveyor are substantially different from those for the subsequent material, increasingly further away from the conveyor, which is removed from the material underneath by means of friction. Therefore, once again, this can lead to different degrees of compaction of the material arriving at the delivery rollers.
- the object of this invention is to overcome the abovementioned limitations and to obviate the disadvantages currently encountered in the case of the known mixers, by providing a mixing structure capable of providing substantially homogeneous mixing without any significant increase in the overall dimensions and substantially retaining the greater part of the conventional structure of the mixer.
- a mixing structure for staple material especially cotton staples, of the type comprising a plurality of adjacent vertical bins, communicating at the top with a duct for supplying the material and provided at the lower outlet with associated mixing rollers adapted to supply the material to a common mixing and conveying delivery channel, means for generating a current of air for the transportation of the material being disposed in the supply duct, characterised in that the feed direction of the material at the inlet of the mixer slopes upwards and that the bins are of a height gradually increasing in the feed direction of the material.
- the material supplied in a current of air to the inlet of the mixer is driven in a substantially uniform manner into the various bins, wherein there are no mechanical transporting and conveying elements in the ascending path and the current of air for transportation directs all of the material into the interior of the various bins, said material, by virtue of the inclination of the upper part of the mixer, being distributed among the various bins at different levels, as is necessary for true mixing, but substantially with the same degree of compaction, thereby eliminating the disadvantage specified at the outset and making it possible to achieve improved homogenisation of the material at the outlet.
- the material advanced upwardly into the mixer by a vertical component may also advantageously be distributed among the various bins to a certain extent as a function of the weight of the staples, wherein the vertical component can have a certain influence owing to the force of gravity, acting in the opposite direction to the direction of movement of the material. In this manner, it is possible to obtain a certain degree of sorting of the material into the various bins, this having an advantageous effect on the results of the final mixing.
- a mixer 1 comprises a plurality of adjacent vertical bins 2, separated by means of dividing walls 3 and communicating with one another at the top and having a duct 4 for supplying the staple material, e.g. cotton staples.
- staple material e.g. cotton staples.
- the bins 2 have associated mixing means, e.g. in the form of pairs of delivery feed rollers 5, below which are disposed mixing rollers 6, in an arrangement known per se.
- the rollers 5 of each pair are actuated so as to rotate in opposite directions, with the aid of means known per se.
- Both the rollers 5 and the rollers 6 can be operated at different speeds for the various bins 2, e.g. at a speed gradually decreasing from the bin closest to the feed side to the bin furthest away from the feed side or vice versa, according to a technique which is known per se and which will therefore not be described and illustrated in more detail.
- rollers 5 and 6 supply the material to a common mixing and conveying delivery channel 7, from where the mixed material is drawn into the next machine, e.g. an opener or a carding machine, in the manner known per se.
- a common mixing and conveying delivery channel 7 from where the mixed material is drawn into the next machine, e.g. an opener or a carding machine, in the manner known per se.
- the opposing lateral walls 8 of the body of the mixer 1 are provided with windows 9 so that it is possible to verify the proper movement of the material inside the bins 2.
- a pressure detector 10 is provided in the supply duct 4, at the inlet of the mixer 1.
- means 11 for generating a current of air for the transportation of the material are also disposed in the duct 4.
- this means is an axial-inlet, radial-outlet fan. It is of the known type and is disposed to rotate with the aid of a motor (not shown). The fan draws the material into a current of air, e.g. from a sampler, and delivers it into the mixer 1.
- the walls 8 of the mixer 1 have perforated portions 12 and associated discharge pipes 13, through which the air delivered by the fan 11 leaves the mixer 1.
- the discharge pipes 13 converge into one common outlet 14.
- the structure of the mixer in its upper part is such that the feed direction of the material at the inlet of the mixer, indicated by the arrow 15, slopes upwards and the bins 2 are of a height gradually increasing in the feed direction of the material in the mixer 1.
- the mixer 1 therefore has an inclined top 16, the interior thereof defining a guide surface 17 for the material in the sloping feed direction of the said material. This surface is connected by means of a portion 18 to the wall of the final bin 2.
- the dividing walls 3 end at the top in profiled deflection surfaces 19 known per se, but succeeding one another in a sloping line parallel to the feed direction of the material, so as to define, together with the top 16, a sloping feed channel 20, the inlets to the various bins 2 having gradually decreasing levels departing from the bottom of said channel.
- the transverse inlet sections of the various bins 2 at the surfaces 19 can be of identical size, as illustrated, or they can be of gradually varying size, e.g. gradually decreasing from the bin 2 closest to the feed side to the bin 2 furthest away from the feed side.
- the path 4a of the supply duct external to the mixer 1 is advantageously directly connected thereto, and it also slopes with a degree of inclination equal to that of the feed direction of the material into the mixer 1, so that the material is delivered into said mixer without being subjected to deflection and the entire section of the material can enter the mixer in the same state, resulting advantageously in uniform distribution of the material throughout the various bins 2.
- the angle of inclination of the feed direction, or of the channel 20 and the duct path 4a is preferably between 10 o and 70 o , according to the nature and quality of the material to be mixed.
- the staple material is delivered in a substantially uniform manner into the various bins 2, so that there is an almost equal degree of compaction in each bin 2, irrespective of its distance from the feed side.
- This inclined arrangement results in the material being disposed at different levels in the various bins 2, thereby creating the conditions for true mixing of different quantities of material, obtained by the successive removal of different qualities of material from the original bale.
- the fan 11 is advantageously controlled as a function of the pressure detected by the pressure detector 10, so as to maintain constant and optimum feed conditions.
- the level of material in the bins 2 can be modified by varying the speed of the delivery feed rollers 5 and the associated mixing rollers 6. E.g. by gradually increasing the speed of the rollers 5 and 6 of the bins 2 closest to the feed side compared to those furthest away from the feed side, it is possible to obtain a more inclined arrangement (indicated by the broken line 21) of the level of material in the various bins 2, thereby varying the characteristics of the mixing.
- the upper part of the mixer 1 can be provided with a cover 23 hinged on to the body of the mixer and capable of being fixed in different angular positions, defining the same inclination as that of the feed direction of the material 2.
- the duct path 4a is connected to the fixed part of the duct 4 by means of a flexible connection 4b.
- a mixer having a structure according to the invention involves only a modest increase in the overall dimensions, virtually only with respect to its height, and therefore in the direction posing fewest problems, so that it is possible by simple and inexpensive means to achieve more uniform feeding of the bins and thus improved homogenisation of the material.
Abstract
Description
- This invention relates to a mixing structure for staple material, especially cotton staples.
- In the case of conventional mixers having a plurality of adjacent vertical bins, wherein the fibrous material drawn from a series of bales arranged alongside one another is supplied in a current of air to the upper inlet of the mixer, from where it is distributed to the individual bins, the bins are generally filled to different levels, wherein those bins closest to the feed side of the material have a higher level of material and this level gradually decreases towards the final bin, i.e. the bin furthest away from the feed side.
- However, the system of distributing the material to the various bins, generally effected by mechanical means, e.g. a belt conveyor provided with transverse elements for taking up the material, which gradually carry the material towards the various bins, also involves perceptible rarefaction of the material as it approaches the final bin, so that, in addition to having an increasingly lower level, the material is also decreasingly compact from one bin to the next. Consequently, the material has a different degree of compaction at the outlet of the various bins, where feed and mixing rollers are disposed, thus resulting in non-homogeneous mixing, wherein quantities of material originally having the same characteristics are mixed together in different states at the outlet of the bins. In order to obtain more homogeneous mixing, it has already been proposed to use a mixer in which the various vertical bins are provided at the bottom with deflecting walls, at graduated heights, and a horizontal or substantially horizontal conveyor is disposed below the bins, adapted to advance the material from the bottom of the bins in horizontal layers, or almost, towards the delivery rollers of the mixer, disposed one above the other (see Swiss Patent No. 511 951). In this manner, the material from the various bins is forced to move along paths of different lengths, quantities of material combined in very different ways arriving at the outlet at the same time. However, this type of mixer has the disadvantage of greater overall dimensions as a result of the horizontal or substantially horizontal deflection of the paths of the material. Moreover, in the final phase of the paths, the transportation conditions for the material taken directly from the conveyor are substantially different from those for the subsequent material, increasingly further away from the conveyor, which is removed from the material underneath by means of friction. Therefore, once again, this can lead to different degrees of compaction of the material arriving at the delivery rollers.
- Therefore, the object of this invention is to overcome the abovementioned limitations and to obviate the disadvantages currently encountered in the case of the known mixers, by providing a mixing structure capable of providing substantially homogeneous mixing without any significant increase in the overall dimensions and substantially retaining the greater part of the conventional structure of the mixer.
- This problem is solved by a mixing structure for staple material, especially cotton staples, of the type comprising a plurality of adjacent vertical bins, communicating at the top with a duct for supplying the material and provided at the lower outlet with associated mixing rollers adapted to supply the material to a common mixing and conveying delivery channel, means for generating a current of air for the transportation of the material being disposed in the supply duct, characterised in that the feed direction of the material at the inlet of the mixer slopes upwards and that the bins are of a height gradually increasing in the feed direction of the material.
- In the case of a structure of this type, the material supplied in a current of air to the inlet of the mixer is driven in a substantially uniform manner into the various bins, wherein there are no mechanical transporting and conveying elements in the ascending path and the current of air for transportation directs all of the material into the interior of the various bins, said material, by virtue of the inclination of the upper part of the mixer, being distributed among the various bins at different levels, as is necessary for true mixing, but substantially with the same degree of compaction, thereby eliminating the disadvantage specified at the outset and making it possible to achieve improved homogenisation of the material at the outlet.
- The material advanced upwardly into the mixer by a vertical component may also advantageously be distributed among the various bins to a certain extent as a function of the weight of the staples, wherein the vertical component can have a certain influence owing to the force of gravity, acting in the opposite direction to the direction of movement of the material. In this manner, it is possible to obtain a certain degree of sorting of the material into the various bins, this having an advantageous effect on the results of the final mixing.
- Other features and advantages of the invention will be clear from the following description of several preferred embodiments of this invention, illustrated by way of example in the accompanying drawings, in which:
- Fig. 1
- is a side elevation, in part section, of a mixer having a structure according to the invention and
- Fig. 2
- is a sectional side elevation of the upper part of a mixer having a structure modified with respect to that of Fig. 1.
- With reference to Fig. 1, a
mixer 1 comprises a plurality of adjacentvertical bins 2, separated by means of dividingwalls 3 and communicating with one another at the top and having a duct 4 for supplying the staple material, e.g. cotton staples. - At the lower outlet portion, the
bins 2 have associated mixing means, e.g. in the form of pairs ofdelivery feed rollers 5, below which are disposedmixing rollers 6, in an arrangement known per se. Therollers 5 of each pair are actuated so as to rotate in opposite directions, with the aid of means known per se. Both therollers 5 and therollers 6 can be operated at different speeds for thevarious bins 2, e.g. at a speed gradually decreasing from the bin closest to the feed side to the bin furthest away from the feed side or vice versa, according to a technique which is known per se and which will therefore not be described and illustrated in more detail. - The
rollers delivery channel 7, from where the mixed material is drawn into the next machine, e.g. an opener or a carding machine, in the manner known per se. - The opposing
lateral walls 8 of the body of themixer 1 are provided withwindows 9 so that it is possible to verify the proper movement of the material inside thebins 2. - A
pressure detector 10 is provided in the supply duct 4, at the inlet of themixer 1. Moreover, means 11 for generating a current of air for the transportation of the material are also disposed in the duct 4. In the case illustrated, this means is an axial-inlet, radial-outlet fan. It is of the known type and is disposed to rotate with the aid of a motor (not shown). The fan draws the material into a current of air, e.g. from a sampler, and delivers it into themixer 1. - Above the
windows 9, thewalls 8 of themixer 1 have perforatedportions 12 and associateddischarge pipes 13, through which the air delivered by thefan 11 leaves themixer 1. Thedischarge pipes 13 converge into onecommon outlet 14. - As illustrated in the drawing, the structure of the mixer in its upper part is such that the feed direction of the material at the inlet of the mixer, indicated by the
arrow 15, slopes upwards and thebins 2 are of a height gradually increasing in the feed direction of the material in themixer 1. Themixer 1 therefore has aninclined top 16, the interior thereof defining aguide surface 17 for the material in the sloping feed direction of the said material. This surface is connected by means of aportion 18 to the wall of thefinal bin 2. The dividingwalls 3 end at the top in profileddeflection surfaces 19 known per se, but succeeding one another in a sloping line parallel to the feed direction of the material, so as to define, together with thetop 16, a slopingfeed channel 20, the inlets to thevarious bins 2 having gradually decreasing levels departing from the bottom of said channel. The transverse inlet sections of thevarious bins 2 at thesurfaces 19 can be of identical size, as illustrated, or they can be of gradually varying size, e.g. gradually decreasing from thebin 2 closest to the feed side to thebin 2 furthest away from the feed side. - The
path 4a of the supply duct external to themixer 1 is advantageously directly connected thereto, and it also slopes with a degree of inclination equal to that of the feed direction of the material into themixer 1, so that the material is delivered into said mixer without being subjected to deflection and the entire section of the material can enter the mixer in the same state, resulting advantageously in uniform distribution of the material throughout thevarious bins 2. - The angle of inclination of the feed direction, or of the
channel 20 and theduct path 4a is preferably between 10o and 70o, according to the nature and quality of the material to be mixed. - In the case of the structure described and illustrated, the staple material is delivered in a substantially uniform manner into the
various bins 2, so that there is an almost equal degree of compaction in eachbin 2, irrespective of its distance from the feed side. This inclined arrangement results in the material being disposed at different levels in thevarious bins 2, thereby creating the conditions for true mixing of different quantities of material, obtained by the successive removal of different qualities of material from the original bale. - The
fan 11 is advantageously controlled as a function of the pressure detected by thepressure detector 10, so as to maintain constant and optimum feed conditions. Other conditions being equal, the level of material in thebins 2 can be modified by varying the speed of thedelivery feed rollers 5 and the associatedmixing rollers 6. E.g. by gradually increasing the speed of therollers bins 2 closest to the feed side compared to those furthest away from the feed side, it is possible to obtain a more inclined arrangement (indicated by the broken line 21) of the level of material in thevarious bins 2, thereby varying the characteristics of the mixing. - According to a variant of the invention, illustrated in Fig. 2, the upper part of the
mixer 1 can be provided with acover 23 hinged on to the body of the mixer and capable of being fixed in different angular positions, defining the same inclination as that of the feed direction of thematerial 2. In this case, theduct path 4a is connected to the fixed part of the duct 4 by means of aflexible connection 4b. As a result of the fact that it is possible to vary the inclination of the inlet, it is easier to adapt one mixer to the material being treated, in order to obtain different mixing results according to the requirements. - As will be noted, a mixer having a structure according to the invention involves only a modest increase in the overall dimensions, virtually only with respect to its height, and therefore in the direction posing fewest problems, so that it is possible by simple and inexpensive means to achieve more uniform feeding of the bins and thus improved homogenisation of the material.
Claims (8)
- Mixing structure for staple material, especially cotton staples, comprising a plurality of adjacent vertical bins, communicating at the top with a duct for supplying the material and provided at the lower outlet with associated mixing rollers adapted to supply the material to a common mixing and conveying delivery channel, means for generating a current of air for the transportation of the material being disposed in the supply duct, characterised in that the feed direction of the material at the inlet of the mixer slopes upwards and that the bins are of a height gradually increasing in the feed direction of the material.
- Structure according to claim 1, characterized in that the supply duct has a path external to the mixer having a degree of inclination equal to that of the feed direction of the material inside the mixer.
- Structure according to claim 1 or claim 2, characterized in that the angle of inclination of the feed direction is preferably between 10o and 70o.
- Structure according to one of the preceding claims characterized in that the mixer has a cover hinged on to the body of the mixer and capable of being fixed in different angular positions.
- Structure according to one of the preceding claims characterized in that the lateral walls of the bins are at least partially perforated for the discharge of the air for conveying the material.
- Structure according to one of the preceding claims characterised in that a pressure detector is disposed in the supply duct, upstream of the said means for generating a current of air, and that said generating means is controlled as a function of the pressure detected by the said pressure detector.
- Structure according to claim 1, characterised in that the mixing rollers of the various bins can be operated at different speeds.
- Structure according to one of the preceding claims characterised in that the bins have different inlet sections at the top, preferably gradually decreasing from the bin closest to the feed side to the bin furthest away from the feed side.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2197890 | 1990-11-06 | ||
IT02197890A IT1243895B (en) | 1990-11-06 | 1990-11-06 | MIXER STRUCTURE FOR FIBER BOW MATERIALS, IN PARTICULAR COTTON |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0485014A1 true EP0485014A1 (en) | 1992-05-13 |
EP0485014B1 EP0485014B1 (en) | 1997-09-03 |
Family
ID=11189681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91202811A Expired - Lifetime EP0485014B1 (en) | 1990-11-06 | 1991-10-30 | Mixing structure for staple material, especially cotton staples |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0485014B1 (en) |
DE (1) | DE69127528T2 (en) |
IT (1) | IT1243895B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0709500A1 (en) * | 1994-10-26 | 1996-05-01 | Maschinenfabrik Rieter Ag | Apparatus for separating fiber flocks from transport air stream |
DE19846299A1 (en) * | 1998-10-08 | 2000-04-13 | Temafa Textilmaschf Meissner | Opening machine for fiber tufts in blowroom comprises a chute feeding several pairs of feed rollers each with an associated opening roller |
CN100467684C (en) * | 2003-03-27 | 2009-03-11 | 马尔佐利股份公司 | Connector for connecting a fibre feeding duct to at least one textile machine |
CN107177906A (en) * | 2017-07-24 | 2017-09-19 | 宁夏如意科技时尚产业有限公司 | A kind of blowing multi-mixer |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017083911A1 (en) * | 2015-11-17 | 2017-05-26 | Everbright Innovations Pty Ltd | Apparatus for evenly distributing fibres onto a conveyor |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR80675E (en) * | 1960-07-18 | 1963-05-31 | Improvements in processes and machines for mixing textured materials for spinning | |
GB1295455A (en) * | 1968-11-08 | 1972-11-08 | ||
DE2939968A1 (en) * | 1979-10-02 | 1981-04-09 | Temafa, Textilmaschinenfabrik Meissner, Morgner & Co Gmbh, 5070 Bergisch Gladbach | Reserve feed-hopper for extra-wide carding engines - subdivided into multiple compartments with individual depth-of-fill control |
FR2518586A1 (en) * | 1981-12-23 | 1983-06-24 | Truetzschler & Co | METHOD AND DEVICE FOR MIXING TEXTILE FIBERS |
-
1990
- 1990-11-06 IT IT02197890A patent/IT1243895B/en active IP Right Grant
-
1991
- 1991-10-30 DE DE69127528T patent/DE69127528T2/en not_active Expired - Fee Related
- 1991-10-30 EP EP91202811A patent/EP0485014B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR80675E (en) * | 1960-07-18 | 1963-05-31 | Improvements in processes and machines for mixing textured materials for spinning | |
GB1295455A (en) * | 1968-11-08 | 1972-11-08 | ||
DE2939968A1 (en) * | 1979-10-02 | 1981-04-09 | Temafa, Textilmaschinenfabrik Meissner, Morgner & Co Gmbh, 5070 Bergisch Gladbach | Reserve feed-hopper for extra-wide carding engines - subdivided into multiple compartments with individual depth-of-fill control |
FR2518586A1 (en) * | 1981-12-23 | 1983-06-24 | Truetzschler & Co | METHOD AND DEVICE FOR MIXING TEXTILE FIBERS |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0709500A1 (en) * | 1994-10-26 | 1996-05-01 | Maschinenfabrik Rieter Ag | Apparatus for separating fiber flocks from transport air stream |
DE19846299A1 (en) * | 1998-10-08 | 2000-04-13 | Temafa Textilmaschf Meissner | Opening machine for fiber tufts in blowroom comprises a chute feeding several pairs of feed rollers each with an associated opening roller |
DE19846299B4 (en) * | 1998-10-08 | 2010-09-30 | Temafa Maschinenfabrik Gmbh | The opener |
CN100467684C (en) * | 2003-03-27 | 2009-03-11 | 马尔佐利股份公司 | Connector for connecting a fibre feeding duct to at least one textile machine |
CN107177906A (en) * | 2017-07-24 | 2017-09-19 | 宁夏如意科技时尚产业有限公司 | A kind of blowing multi-mixer |
Also Published As
Publication number | Publication date |
---|---|
IT9021978A1 (en) | 1992-05-06 |
IT1243895B (en) | 1994-06-28 |
DE69127528D1 (en) | 1997-10-09 |
EP0485014B1 (en) | 1997-09-03 |
IT9021978A0 (en) | 1990-11-06 |
DE69127528T2 (en) | 1998-04-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4154485A (en) | Web-former | |
US4198725A (en) | Cleaning and dust removal machine | |
US7318797B2 (en) | Continuous rod machine arrangement for producing nonwoven filters | |
US6276028B1 (en) | Non-woven fabric forming system | |
US4661025A (en) | Apparatus for forming a fiber column in a chute feed | |
GB2191381A (en) | Making plural tobacco streams | |
US4914787A (en) | Method of and apparatus for blending textile fibers | |
US5171498A (en) | Manufacture of bonded particle boards | |
EP0485014A1 (en) | Mixing structure for staple material, especially cotton staples | |
US6271485B1 (en) | Article alignment device | |
US5218741A (en) | Textile fiber mixer | |
US5950282A (en) | Textile chute feed | |
US3648330A (en) | Method and apparatus for mixing staple fibers | |
JP2834864B2 (en) | Apparatus for supplying a lump-shaped fiber material to a card | |
GB2135705A (en) | Handling fibre flocks | |
GB2261646A (en) | Apparatus for feeding tobacco ribs to a cutting tool | |
US4523351A (en) | Fiber lap producing apparatus with lap width varying device | |
CN1047108C (en) | Method and device for separating heavy particles from a particulate material | |
US4715722A (en) | Process and apparatus for feeding fiber material | |
US4908910A (en) | Process and apparatus for blending fibers of at least two flows of fiber material, in particular spinning material | |
US4355741A (en) | Sack-filling machine | |
US4769873A (en) | Textile fiber distribution ramp for fiber batt forming apparatus | |
CN114351297A (en) | Spinning preparation machine | |
USH2105H1 (en) | Method and apparatus forming a fiber web | |
DE19617982A1 (en) | Combination scales |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE FR GB LI |
|
17P | Request for examination filed |
Effective date: 19921022 |
|
17Q | First examination report despatched |
Effective date: 19940623 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE FR GB LI |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 69127528 Country of ref document: DE Date of ref document: 19971009 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: AMMANN PATENTANWAELTE AG BERN |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20041008 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20041027 Year of fee payment: 14 Ref country code: CH Payment date: 20041027 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20041028 Year of fee payment: 14 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20051030 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20051031 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20051031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060503 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20051030 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060630 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20060630 |