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EP0846795A2 - Dispositif pour sectionner une mèche - Google Patents

Dispositif pour sectionner une mèche Download PDF

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Publication number
EP0846795A2
EP0846795A2 EP97810729A EP97810729A EP0846795A2 EP 0846795 A2 EP0846795 A2 EP 0846795A2 EP 97810729 A EP97810729 A EP 97810729A EP 97810729 A EP97810729 A EP 97810729A EP 0846795 A2 EP0846795 A2 EP 0846795A2
Authority
EP
European Patent Office
Prior art keywords
sliver
separating
spinning
sheets
severing
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.)
Ceased
Application number
EP97810729A
Other languages
German (de)
English (en)
Other versions
EP0846795A3 (fr
Inventor
Peter Gujer
Lars Weisigk
Roland Styner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0846795A2 publication Critical patent/EP0846795A2/fr
Publication of EP0846795A3 publication Critical patent/EP0846795A3/fr
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/02—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements
    • D01H9/16—Yarn-severing arrangements, e.g. for cutting transfer tails; Separating of roving in flyer

Definitions

  • the invention relates to a device for separating a delivery device delivered and deposited in spinning cans fiber material when changing the can.
  • a Sliver which closes when the can is changed from an extending spinning can an empty spinning can extends with means for holding and with means for Disconnect severed.
  • Such a device is known from CH 673 483.
  • a separator provided with means for clamping and cutting, which when changing the can is shifted from a rest position into a working position. 4 and 5 - in 1 - can be seen, the lower swivel arm (91) and the upper one, which has an arm (90) which can be moved parallel to itself, into a common plane are moved so that the comb acting as a separator (52) can separate the sliver.
  • the two arms (90, 91) and the clamping webs are coupled via a lever (26) and with the aid of a pneumatic cylinder (30) slidable.
  • the disadvantage of this solution is that both arms are adjusted need to perform the separation process.
  • Another known device for cutting belongs to the applicant itself. This will be explained in detail later with reference to FIGS. 2 to 6.
  • This device also has two arms as a clamping unit and a separating element in the form of a Separating finger.
  • the upper arm is not movable and formed by the upper part of the tape storage becomes. So here when changing the can only the lower arm is in a rest position brought a working position, with a pneumatic cylinder as a rotary drive is provided.
  • Another pneumatic cylinder for the separating finger is in the upper part of the Tape storage attached.
  • the disadvantage of this invention is that separate rotary drives are provided for the lower arm and the separating finger.
  • the inventors intend the known device of the applicant (currently on the Market) in such a way that on the one hand the drive costs are reduced and on the other hand increases the quality of the separation of the sliver, as well as the Separation process is shortened.
  • the drive costs are reduced by that only one drive in the form of a for the two clamping and separating units Pneumatic cylinder is provided.
  • the present invention stands out in that only one for the separation process Movement is required. This task comes with the characteristics of two Additional claims 1 and 6 solved.
  • the separation quality is increased by special design and arrangement of the separating element.
  • the above-mentioned lower arm of the tape holder is designed in such a way that a dividing element in the form of a dividing plate is arranged on the arm itself. At a This is done by moving the arm up to the upper part of the conveyor Hold on or pinch and briefly delays the separation of the tape. This faster separation process can not with the separating finger, which is on a Feed unit moves can be achieved as a few seconds between the time pass in which of the separating fingers begins to move and in which of them reached the clamped band.
  • the arrangement of the divider along the bottom The arm also guarantees a safe separation of the between a full jug and the sliver extending to the filling jug.
  • the Parting finger is a tape that is not clamped between the stops or clamping points (will be explained in more detail later). This separation variant prevents the Further processing tangles arise. Furthermore, the arrangement does not apply of the divider on the lower arm of the drive for the divider itself.
  • the interlocking sheets also form one Separation unit, wherein the separation function through the inner plate in a position of Sheet metal is carried out where it interlocks.
  • This arrangement ensures a safe separation, i.e. even in extreme cases, when the band between the Jugs sagging heavily.
  • the separating and clamping plates are also like that Parting finger moved by a pneumatic cylinder. Opposite the first The embodiment eliminates the pneumatic cylinder for the lower arm and the arm itself. In addition, the retention force on the sliver during the Separation process generated by the strong deflection on the outer sheets. This Restraining force at the deflection points is equivalent to the clamping force according to the 1st aspect of the invention.
  • FIG. 1 schematically shows a known device of the applicant in one Working position shown.
  • the lower swivel arm (3) is supported on the upper part (1) the tape storage.
  • the sliver (4) is in the form of a delivery device Turntable in the upper part (not visible) in the form of tape cycloids in one Spinning can, as shown with arrow P2, put down.
  • a full spinning can (8) is already there pushed out of the storage area of the delivery facility and by an empty one Spinning can (29) replaced. That, starting from the pushed out full Spinning can, overhanging sliver is separated by a finger (not shown) severed.
  • Fig. 2 shows the clamping unit (1) in a working position, i.e. if the Swivel arm (3), or the clamping plates (5, 6) carried by it on the upper part of the Support tape storage.
  • a pneumatic cylinder (10) is attached to a can column (9) and movable in the direction of arrow P4.
  • the pneumatic cylinder (10) is not in shown controllable.
  • the swivel arm (3) lies approximately parallel to the can column (9).
  • the working position shown in this figure is thereby achieved that the piston of the pneumatic cylinder (10) according to the arrow (P4) is shifted downwards and thereby the swivel arm (3) according to the arrow (P5) by about 90 ° to a horizontal position, essentially parallel to the upper part (1) is pivoted about the swivel support (2). They are in their working position Clamping plates (5, 6) on the upper part (1) and form two linear clamping points. That between the pushed out full spinning can (8) and the empty can (29) overhanging sliver (4), see Fig. 1, between the nips clamped.
  • FIG. 4 shows a separating finger (23) which extends along a feed unit (19) emotional.
  • the feed unit is located approximately parallel to the inside of the upper part (22) Clamping plates (5, 6) in their working position and forms a magnetic pneumatic cylinder for the separating finger (23).
  • a magnetic piston moves inside the cylinder moves the separating finger (23) each time it is pushed back and forth.
  • Of the Magnetic pneumatic cylinder is now controlled via a pneumatic valve, which on Swivel support (2) is arranged and via a cam on the swivel arm (3) is operated.
  • the band clamped between the clamping plates (5,6) is replaced by the Separating fingers (26) separated.
  • Send in after tape separation Limit switch which is located at the left end of the feed unit (19) in Fig.
  • the microprocessor sends another Signal to a solenoid valve of the pneumatic cylinder (10) so that the piston of the Pneumatic cylinder in its rest position in the direction of arrow P4 in Fig. 2 after drives back up. This will move the arm (3) down in the direction of the arrow (P5) Fig. 2 lowered.
  • the separating finger (23) is over a directional control valve is reset, i.e. to the right in the direction of arrow (P6) in Fig. 4 postponed.
  • a drive of the known tape storage, or the Separating device shown by the applicant There are three pneumatic cylinders (10, 19, 25) for the swivel arm (3), the separating finger (23) and the changer carriage intended.
  • the pneumatic cylinders (10, 25) are controlled by a computer (27), i.e. there are signals to the valves (11, 26) or its switches Pneumatic cylinder sent when changing the can so that the two cylinders be moved accordingly.
  • the third pneumatic cylinder (19) for the separating finger (23) is only exposed mechanically shifted and shortly after when the clamping plates (5, 6) the Have touched the upper part of the tape holder.
  • the reason for the present invention is one of the two Omit pneumatic cylinder (10, 19).
  • the separating finger (23) should also pass through other separation units are replaced. On the one hand, this results in a reduction in price of the drive system, on the other hand a safe and faster disconnection process.
  • Fig. 7 shows schematically a drive of the separation device with a pneumatic cylinder (10) according to the invention (first variant).
  • the pneumatic cylinder (19) in FIG. 6 is omitted, since the separating element on the swivel arm (3), cf. Fig. 2, is arranged and in one Working position together with the swivel arm in the direction of the double arrow (P5) is moved upwards.
  • Fig. 8 shows schematically a drive of the separating device with a pneumatic cylinder (19) according to the second inventive variant.
  • the clamping and Separation units are arranged in the upper part (22) in FIG. 4. Two clamps that to be described later in detail move on a feed unit (19) Fig. 4.
  • FIG. 9 shows the new separation unit (first variant) in a front view.
  • Fig. 10 shows the separation unit seen in side view in the direction of arrow (P7) in Fig. 9.
  • 11 shows the separation unit in a perspective view.
  • the separation unit (31), According to the invention (first variant) is laterally formed in a U-shape and corresponds in its function to the clamping plates (5, 6) shown in FIG. 3.
  • the Swivel arm (30) is similar to the swivel arm (3) from a rest position (A) in a working position (B), cf. Fig. 10, adjusted. 11, the separation unit (31) shown.
  • the clamping plates (32, 33) carried by the swivel arm (30) are supported on the upper part (36) of the tape storage.
  • the Movement of the swivel arms (3) and (30) is basically the same, i.e. a Pneumatic cylinder (10) in Fig. 3 can also be used to drive the new arm (30) be used.
  • a spring assembly (56) is provided on the swivel support of the swivel arm (30), cf. Fig. 9 in connection with FIG. 2, opposite side. With the help of this spring package, the clamping pressure is applied to the sliver maintain.
  • This embodiment has numerous advantages over the known one Separation unit in the form of a separation finger (23) see Fig. 4, 5.
  • By arranging the Divider on the swivel arm eliminates the necessary for the divider Feed unit (19). This results in high cost savings per tape storage.
  • this embodiment ensures a faster separation process compared to the separating finger and this results in a shorter band end above the Jug rim of the new jug to be filled.
  • This solution can be used for one Linear changer can be used.
  • FIG. 12 shows the second variant of the present invention.
  • This variant has some similarities to the known arrangements according to FIGS. 2 to 5.
  • One Guide (38) is, like the known guide in the upper part (36), the tape storage arranged.
  • Cylinder (37) works on the same principle as the cylinder (10) in Fig. 3 and will similar to the cylinder (10) by a microprocessor (27) in Fig. 6, compare the Connection between (27) and (10).
  • the separating plates (47, 48) have a cylindrical channel in their upper part (52) a diameter which is approximately larger than the diameter of the guide (38), so that the sheets can slide on the guide.
  • the sheet (47) is on one two-armed lever (54), which has two arms (54A, 54B), attached and around a fixed pivot point (40) is rotatable. While the lower arm (54A) of the lever (54) in Fig. 12 is rigidly connected to the sheet (47) via a joint (43) upper arm (54B) of the lever via a joint (44) with the pneumatic cylinder (37) connected.
  • the second sheet (48) on the side opposite the sheet (47) the guide (38) is identical.
  • the pneumatic cylinder (37) in Fig. 12 achieves the dashed position by using Compressed air is actuated and the piston rod extends. So shift at the same time the upper arms (54B, 55B) of the levers (54, 55) in the direction of the Double arrows (P9) and the two lower arms (54A, 55A) in the direction of the double arrows (P10) around the fixed pivot points (39, 40). This also moves the sheets (47, 48) towards the middle of the guide (38) until they overlap.
  • the Sliver (51) in Fig. 14 is grasped near the can edge by bypassing the Jug through the dividers and torn through them.
  • FIG. 13 shows the separating plates (47, 48) laterally in the direction of the arrows (A) and (B) in FIG. 12 seen.
  • the plate (48) is fork-shaped, so that the other plate (49) in an overlap position between the two fork. This results in a very high wrap or friction between the sheet (47) and the sliver (51) in Fig. 14 so that the sliver breaks in the middle.
  • the sheets (47, 48) are controlled in such a way that at the time when the full Spinning can (49) more than half ejected start in the opposite direction, i.e. approx. to the middle of the guide (38).
  • the construction adapts to the location the jug automatically ("floating" drive fastening) i.e. the sheets can move independently. So that the clamping and Separation process can be carried out quickly, regardless of where the extended can (49) in Fig. 14, i.e. closer to one or the other Sheet (47.48).
  • This embodiment ensures a safe separation of the tape, also in Extreme cases, i.e. if the belt sags heavily between the cans. Since that Sliver is also clamped between the separating plates, compared to the known solution with the separating finger also the lower swivel arm (3) in Fig. 2nd This allows the tape to be cut with a less expensive device.
  • This embodiment is particularly suitable for the rotation changer.
  • the present invention is by no means limited to the mentioned embodiments limited.
  • drive mechanisms for the swivel arm (30) and the guidance of the Partitions can also e.g. electric cylinders are used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP97810729A 1996-10-03 1997-10-02 Dispositif pour sectionner une mèche Ceased EP0846795A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH240596 1996-10-03
CH2405/96 1996-10-03

Publications (2)

Publication Number Publication Date
EP0846795A2 true EP0846795A2 (fr) 1998-06-10
EP0846795A3 EP0846795A3 (fr) 1999-02-03

Family

ID=4233028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97810729A Ceased EP0846795A3 (fr) 1996-10-03 1997-10-02 Dispositif pour sectionner une mèche

Country Status (1)

Country Link
EP (1) EP0846795A3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0965667A1 (fr) * 1998-06-18 1999-12-22 Maschinenfabrik Rieter Ag Dispositif pour couper une mèche
FR2794139A1 (fr) 1999-05-27 2000-12-01 Schlumberger Cie N Dispositif de rupture d'un ruban de fibres textiles de forte cohesion et procede mis en oeuvre par ce dispositif
US6393667B1 (en) 1998-05-13 2002-05-28 Maschinenfabrik Rieter Ag Machine with a drafting arrangement for processing textile material
CN108796675A (zh) * 2018-07-20 2018-11-13 青岛宏大纺织机械有限责任公司 梳棉机圈条器的纤维条切断装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3633428C2 (de) * 1986-10-01 1996-05-09 Truetzschler Gmbh & Co Kg Vorrichtung zum Durchtrennen eines Faserbandes bei einer Spinnereivorbereitungsmaschine, insbesondere einer Strecke
JP2509541B2 (ja) * 1987-02-06 1996-06-19 豊和工業株式会社 ケンス交換時におけるスライバ−の切断方法
JP2799781B2 (ja) * 1991-04-05 1998-09-21 株式会社原織機製作所 紡機におけるスライバ−の切断方法、及びその装置
CZ281056B6 (cs) * 1992-10-08 1996-06-12 Rieter Elitex A.S. Zařízení k přerušení pramene vláken v plnicí stanici textilního stroje

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6393667B1 (en) 1998-05-13 2002-05-28 Maschinenfabrik Rieter Ag Machine with a drafting arrangement for processing textile material
EP0965667A1 (fr) * 1998-06-18 1999-12-22 Maschinenfabrik Rieter Ag Dispositif pour couper une mèche
FR2794139A1 (fr) 1999-05-27 2000-12-01 Schlumberger Cie N Dispositif de rupture d'un ruban de fibres textiles de forte cohesion et procede mis en oeuvre par ce dispositif
CN108796675A (zh) * 2018-07-20 2018-11-13 青岛宏大纺织机械有限责任公司 梳棉机圈条器的纤维条切断装置

Also Published As

Publication number Publication date
EP0846795A3 (fr) 1999-02-03

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