EP0480359A1 - Dispositif et procédé pour alimenter des rubans de fibres à une machine textile - Google Patents
Dispositif et procédé pour alimenter des rubans de fibres à une machine textile Download PDFInfo
- Publication number
- EP0480359A1 EP0480359A1 EP91117086A EP91117086A EP0480359A1 EP 0480359 A1 EP0480359 A1 EP 0480359A1 EP 91117086 A EP91117086 A EP 91117086A EP 91117086 A EP91117086 A EP 91117086A EP 0480359 A1 EP0480359 A1 EP 0480359A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- belt
- conveyor belt
- conveying direction
- guide tubes
- guide
- 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- Withdrawn
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/005—Arrangements for feeding or conveying the slivers to the drafting machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H51/00—Forwarding filamentary material
- B65H51/14—Aprons, endless belts, lattices, or like driven elements
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/14—Details
- D01H1/18—Supports for supply packages
- D01H1/186—Supports for supply packages for supplying from cans
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Definitions
- the invention relates to an apparatus and a method for feeding - in particular from cans or the like. Stacked vessels removed and guided over conveyor devices of an infeed table - fiber tapes to a textile machine in a belt guide channel with this blown air fed in laterally.
- DE-AS 22 30 644 teaches to pull the sliver to be processed via take-off rollers from the spinning can and to give it up to a conveyor belt for further transport.
- Each so-called working jug is assigned in pairs a so-called reserve jug, the sliver of which is taken up as a reserve sliver via a pair of take-off rollers and kept ready.
- the pairs of take-off rolls of the fiber sliver and the reserve sliver are - seen in the conveying direction - arranged one behind the other in a line.
- the take-off device of the assigned reserve sliver is started by a control. This ensures the automatic tracking of a reserve bandage if a sliver breaks or runs out.
- a lack of such designs is that the connection of the tape ends remains imperfect, especially if the tape ends do not run exactly linear. Among other things, this limits the possibilities of assigning infeed tables considerably.
- a spinning preparation machine is known, with which an initially mentioned, according to DE-OS 36 12 133 connected to a blown air duct guide is formed in two parts between the output and calender rollers.
- a fleece coming from a drafting system is fed to it through a pipe section provided with a funnel-shaped inlet, behind the discharge end of which the blown air duct opens. This is arranged at an angle of approximately 45 ° to the axis of the belt guide channel in order to allow the conveying air flow to rotate.
- the inventor has set himself the task of improving the steering and guiding of a loose beginning or end of the band and the merging of band ends at any angle between the feed and discharge directions, including the tracking of a reserve band.
- a device in which a plurality of conveyor belts for fiber tapes, each with an outlet-side guide tube, are arranged side by side and the mouths of the guide tubes are staggered in the conveying direction are, these mouths end on a conveyor belt of the inlet unit determining the conveying direction.
- These conveyor belts can run at any angle to or in the conveying direction, but it has proven to be particularly advantageous to provide the conveyor belts at least partially transversely to the conveying direction and to bend their guide tubes both downward to the conveyor belt and in the conveying direction.
- the guide tubes which may be pivotable above the conveyor belt, are to be assigned to one another in pairs and the mouth distances of the pairs change in the direction of conveyance, preferably increasing towards the direction of conveyance. Also, two pairs of guide tubes following one another in the conveying direction can have the same opening distance.
- pairs of guide tubes can be combined to form a V-shaped unit with an opening, through which movement paths are formed for a pair of fiber belts, each of which is to be fed on a different side of the central axis of the conveyor belt.
- the guide tubes described represent so-called condenser nozzles, which deflect the respective sliver by a desired angle;
- the geometrical arrangement of these condenser nozzles causes the so-called condensation of the fiber slivers, namely the reduction in the lateral spacing of the fiber slivers fed at a certain distance, so that the presentation of the fiber slivers combined by condensation is suitable for the direct reception of the textile machine processing them .
- the beginning of the strip is guided parallel to the tube walls with the help of an air flow.
- the beginning of the belt is gripped, for example, by a driven take-off roller, which cleanly pulls the fiber sliver through the condenser nozzle without being subject to slippage on the following conveyor belt of an inlet module.
- the guide tube prefferably be arranged downstream of a guideway of the conveyor belt which is delimited on both sides by belt strands and which thus results between the latter and an additionally attached belt loop of the inlet module.
- the device according to the invention can, within the scope of the invention, a traversing device with deflectors for pressing a belt end running on the outer edge of the conveyor belt against a side resistor or the like.
- Inlet unit included.
- the openings for the other slivers lying between the outer belts should lie outside the range of movement of this so-called traversing device which serves to change the location.
- pivotable guide tubes or condenser nozzles are preferably assigned to the fiber belts running on the outer edge (s) of the conveyor belt.
- the arrangements described ensure that the fiber slivers are on the inlet module at a precisely defined distance from one another.
- a reserve belt which replaces an outgoing work belt, gets exactly on the track of the outgoing work belt. This ensures that the arrangement of the slivers always remains the same when mixing different slivers.
- the position of the tape start of the reserve tape relative to and in the axial direction to that of the tape end of the outgoing work tape can be a positive overlap or a negative overlap, in which there is a gap between the tape end and the tape start.
- overlaps can also be made in the length of the staple fiber, so that approximately the same number of fibers are always fed to the subsequent machine.
- the reserve band of an edge band does not come exactly in the track of the work belt, but lies - offset by one track inwards - next to it. If the reserve tape and work tape have a positive overlap, the new sliver start, also guided laterally by a sliver each and can thus be processed by the subsequent textile processing machine.
- the device described allows a loose beginning of the strip to be steered and guided in such a way that, on the one hand, the sliver can be safely processed by the subsequent textile-processing machine and, on the other hand, the beginning of the strip is deflected by means of the air flow.
- a working belt running on the edge of the conveyor path can be deflected in the area of its belt end from its path of movement towards the edge and the reserve belt can be introduced into the path of movement, after which the adjacent belt ends are connected.
- An infeed table 10 for the supply of fiber tapes Q or R from spinning cans 12 to a textile machine, for example to a draw frame 14, comprises a plurality of individually driven and parallel-directed conveyor belts 16, which in the exemplary embodiment of FIG. 1 are arranged in two groups on both sides of their transport direction y traversing inlet unit 18 are arranged.
- the line N1 denotes the area of the right table in plan view of Fig. 1, the line N2 that of the left table.
- the slivers Q and R are removed from the spinning cans 12 by means of a take-off device, not shown in FIG. 1, and placed on the individual conveyor belts 16.
- a take-off device not shown in FIG. 1
- a reserve tape R is automatically adjusted.
- Each working belt Q and each reserve belt R lies on a conveyor belt 16 which is assigned to it and is driven in a separately controllable manner.
- one of the conveyor belts 16 can be seen as a belt loop with an upper run 16 h and a lower run 16 t between a drive roller 22 and a deflection roller 24 defining a belt head.
- the drive roller 22 provided in a drive unit 26 is assigned a pressure roller 28, which is attached to the frame of the adjacent conveyor belt 16 by means of a swing arm 27 and which can guide a sliver Q, R (not shown) by clamping.
- the length t of the starting belt 30 depends on its starting acceleration, which is to be given to a sliver introduced between its lower run 30 t and the upper run 16 h of the conveyor belt 16.
- the conveyor head 24/24 n is followed in the conveying direction x by a guide tube 32 with a discharge end 34 which is curved downward after an air supply nozzle 33.
- each sliver Q, R has a lateral distance k from its neighboring belt R, Q - or its two neighboring belts - parallel to the conveying direction x, which is reduced to a function-specific and specific distance i for the subsequent textile processing machine 14 got to. This process is called condensation of the slivers Q, R.
- the guide tubes 32 together with the conveyor belt 20 common to them, form a so-called condenser 36 for the fiber belts Q, R; each sliver Q, R is assigned one of the guide tubes 32 as a condenser nozzle.
- the condenser nozzles 32 also take over the deflection of the fiber belts Q, R in this conveying direction x in a desired direction Deflection angle w - approximately in the example of FIG. 3 of 90 °.
- the geometrical arrangement of the condenser nozzles 32 and their orifices 35 causes the fiber tapes Q, R to condense to form a nonwoven fabric.
- the position of the band beginning R1 of the reserve band R is determined relatively and in the axial direction to that of the band end Q1 of the outgoing working band Q by the formation of the condenser 20 and by the acceleration process of the reserve band R.
- Each of the condenser nozzles 32 consists of a pipe or a pipe bend, in which, under the influence of an air flow - from supply pipe 33 - the beginning of the band R 1 is guided parallel to the pipe wall 38.
- the beginning of the belt R 1 - for example according to FIG. 5 - is gripped by a driven take-off roller 40 and the conveyor belt 20 of the inlet unit 18 and brought to the outlet end Q 1 of the working belt Q; the slivers Q, R are drawn by the take-off rollers 40 through the condenser nozzle 32 without being subject to slippage on the upper run 21 of the conveyor belt 20.
- the central axis M of the conveyor belt 20 is also the axis of symmetry for the arrangement of the condenser nozzles 32. These are provided in pairs and offset transversely to the conveying or infeed direction x of the fiber belts Q, R by a respective bandwidth.
- the condenser nozzles 32 are staggered diagonally - from the inlet side on the right to the outlet side on the left of the central axis M.
- Two condenser nozzles 32 are each designed as a V-shaped nozzle set 32 s in plan view, from the mouth 35 of which a lateral guide flank 39 projects (FIG. 7).
- the working belt Q and the assigned reserve belt R from two different - separated by the central axis M - band halves or table sides N1, N2 ago fed.
- FIG. 3 4 is a traversing device 42 with deflectors 44 - of pivoting elements 46 on shear cylinders 48 - to see between the condenser nozzles 32 for edge bands Q1 and Q8 (see FIG. 8) provided at an average distance n, which the Press outgoing Q e of an outer working belt Q 1 against an adjacent side wall 19 of the inlet unit 18, so that the new beginning of the belt R 1 of a spare belt R finds an empty track on the inside of the running working belt Q 1.
- the slivers Q1 to Q8 lie on the upper run 21 of the conveyor belt 20 at precisely defined intervals i to each other.
- a reserve belt R1 which replaces the outgoing work belt Q1, immediately in its track and is overlapped by the traversing device 42 laterally shifted band end Q e and taken away.
- the slivers Q2, R2 can remain q in Figure 8 at an axial distance; Reserve tape R2 is taken from the neighboring tapes Q1 and Q3.
- the flowchart according to FIG. 9 shows the signal assignment for the outer fiber bands Q1 and Q8 or R1 and R8 with lateral overlap; the slivers R2 to R7, not shown, do not require overlap.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH3282/90 | 1990-10-12 | ||
| CH328290A CH683782A5 (de) | 1990-10-12 | 1990-10-12 | Vorrichtung und Verfahren zum Zuführen von Faserbändern zu einer Textilmaschine. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0480359A1 true EP0480359A1 (fr) | 1992-04-15 |
Family
ID=4252615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91117086A Withdrawn EP0480359A1 (fr) | 1990-10-12 | 1991-10-08 | Dispositif et procédé pour alimenter des rubans de fibres à une machine textile |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0480359A1 (fr) |
| CH (1) | CH683782A5 (fr) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2230644B2 (de) * | 1971-06-22 | 1975-02-06 | Mec Officina Meccanica Di Lora Marze Camillo Viazzo Renzo & C. S.N.C., Ponderano, Vercelli | Vorrichtung zum automatischen Zuführen von Textilfaserbändern aus Behältern zu Verarbeitungsmaschinen |
| FR2544345A1 (fr) * | 1983-04-15 | 1984-10-19 | Schlumberger Cie N | Installation automatique d'alimentation de machines en rubans de fibres textiles |
| EP0325294A2 (fr) * | 1988-01-21 | 1989-07-26 | Zinser Textilmaschinen GmbH | Conduit de guidage d'un ruban |
| EP0367211A1 (fr) * | 1988-11-03 | 1990-05-09 | Maschinenfabrik Rieter Ag | Table d'alimentation et procédé pour amener des mèches à une machine de traitement de textile |
| EP0367042A1 (fr) * | 1988-11-03 | 1990-05-09 | Maschinenfabrik Rieter Ag | Table d'alimentation double |
-
1990
- 1990-10-12 CH CH328290A patent/CH683782A5/de not_active IP Right Cessation
-
1991
- 1991-10-08 EP EP91117086A patent/EP0480359A1/fr not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2230644B2 (de) * | 1971-06-22 | 1975-02-06 | Mec Officina Meccanica Di Lora Marze Camillo Viazzo Renzo & C. S.N.C., Ponderano, Vercelli | Vorrichtung zum automatischen Zuführen von Textilfaserbändern aus Behältern zu Verarbeitungsmaschinen |
| FR2544345A1 (fr) * | 1983-04-15 | 1984-10-19 | Schlumberger Cie N | Installation automatique d'alimentation de machines en rubans de fibres textiles |
| EP0325294A2 (fr) * | 1988-01-21 | 1989-07-26 | Zinser Textilmaschinen GmbH | Conduit de guidage d'un ruban |
| EP0367211A1 (fr) * | 1988-11-03 | 1990-05-09 | Maschinenfabrik Rieter Ag | Table d'alimentation et procédé pour amener des mèches à une machine de traitement de textile |
| EP0367042A1 (fr) * | 1988-11-03 | 1990-05-09 | Maschinenfabrik Rieter Ag | Table d'alimentation double |
Also Published As
| Publication number | Publication date |
|---|---|
| CH683782A5 (de) | 1994-05-13 |
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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 IT LI |
|
| 17P | Request for examination filed |
Effective date: 19920305 |
|
| 17Q | First examination report despatched |
Effective date: 19931020 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19950503 |