EP3500699A1 - Zangenaggregat mit einer fasermassenrückzugsvorrichtung, und kämmmaschine mit einem zangenaggregat - Google Patents
Zangenaggregat mit einer fasermassenrückzugsvorrichtung, und kämmmaschine mit einem zangenaggregatInfo
- Publication number
- EP3500699A1 EP3500699A1 EP17757882.0A EP17757882A EP3500699A1 EP 3500699 A1 EP3500699 A1 EP 3500699A1 EP 17757882 A EP17757882 A EP 17757882A EP 3500699 A1 EP3500699 A1 EP 3500699A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fiber mass
- nipper
- plate
- trough
- retraction
- 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- Withdrawn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
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G19/00—Combing machines
- D01G19/06—Details
- D01G19/14—Drawing-off and delivery apparatus
- D01G19/16—Nipper mechanisms
Definitions
- the invention relates to a nipper unit of a combing machine according to the preamble of patent claim 1.
- it is necessary to adjust the combing on the combing machine portion (short noils called) as needed.
- the proportion of noil varies between 5% and 30% and usually depends on the desired yarn quality, which results from the subsequent spinning of the combed fiber mass. In addition, the proportion of noil depends on the fiber mass presented (material feed).
- the long fibers remain in the combed fiber mass, while the short fibers end up almost entirely as noils in the finish.
- Very fine yarns can then be produced with these long fibers, since substantially fewer fibers are required in the cross section of the yarn without the necessary yarn strength being impaired.
- a high proportion of noils has a direct effect on the production volume, which ultimately influences the earnings of the spinning mill directly. Therefore, it is necessary for the spinning master to find a balance between the required quality of the yarn and the loss of production due to the combed-out portion. As a result, the choice of the Auskarmmungsgrades has a very great importance.
- EP 1 449 944 A1 discloses a nipper unit of a comber having a reciprocating pincer frame which has a lower nipper plate which is connected to an upper nipper plate movably mounted in the nipper frame Area of the forceps lips can form a nip and is provided with a mounted in the clamp frame feed roller, which cooperates for the transport of a fiber mass with a feed trough.
- Below the pincers gates is a rotatably mounted circular comb for combing out of the nip of the nipper assembly outstanding tuft.
- a guide means is further known which is mounted above the lower tong plate in the region between the feed roller and the clamping point of the nipper unit and guides the fiber mass on its underside.
- the guide means from EP 1 449 944 A1 in practice does not have the desired effect of the exact selection of the fibers, since as a rule too many short fibers are combed out as desired.
- the minimum amount of combing rings is still too large and with a no-mesh percentage between about 10% and about 20% combing out.
- Another disadvantage of the known device can be considered in particular that the known guide element is indeed manually interchangeable, but only two discrete positions are provided in the clamp frame, whereby a variable setting for the combing operation is not possible.
- the manual replacement of the guide element leads to longer service life of the combing machine and thus negatively influences the passage of the nonwoven production.
- the present invention is therefore based on the object to provide a nipper unit of a combing machine, which allows an improved selection of the fibers, whereby a more optimal combing is achieved and, moreover, the service life of the comber are minimized.
- a nipper unit of a combing machine is provided with a reciprocable pliers frame, wherein the pliers frame has a lower pliers plate, which can form a nip in the region of the pliers lips with an upper pliers plate movably mounted in the pliers frame and with a mounted in the clamp frame feed roller, which cooperates for the transport of a fiber mass with a feed trough.
- the nipper unit has a fiber mass retraction device with a fiber mass retraction element connected to the upper nipper plate and a fiber mass element formed from the upper side towards the underside of the lower nipper plate.
- the fiber pullout retraction device is designed during the closing of the nipper unit (short pliers) to pull back a tuft protruding beyond the nip in the direction of the feed cylinder so as to present a shortened tuft to a combing segment of a circular comb for combing out the short fibers.
- nipper unit short pliers
- the fiber mass retraction element is releasably connected to the upper tong plate. In this way, it is possible to replace the retraction element as needed, especially when worn or repaired.
- the fiber mass retraction element can be moved relative to the upper tong plate and thus change its position relative to the fiber mass retraction recess.
- the fiber mass retraction element is permanently connected to the upper tong plate.
- the setting of the shortened tuft is done by setting a Ecartement according to the known device from DE 102 06 605 A1.
- Ecartement in this context, the distance between a terminal point of the nipper unit downstream Abreisszylindercrues and the front reversal point of the lower tong plate is called.
- the fiber mass retraction element always engages in the pulp retraction trough and pulls the tuft always in the direction of the feed cylinder to the same extent, which can be adjusted by setting the Ecartements over the nip outstanding length of the tuft, as the distance between the nip of the feed cylinder interacts with the feed trough and the nip point of the tearing cylinder pair changes.
- a small Ecar tement results in a short tuft and a large ecartement results in a longer tuft.
- the fiber mass retraction element is height adjustable. This has the advantageous effect that a stepless adjustment of the shortened tuft is possible in a very simple manner. Thus, it can be precisely adjusted to what extent the shortened tuft is to be presented to the combing segment of the circular comb. Thus, it is now possible to control the combing with the circular comb more precisely and thus reduce the Auskarmmung by up to 30%.
- the height adjustment of the fiber mass retraction element allows a retraction of the fiber mass in the direction of the feed cylinder by up to about 5 mm.
- the fiber mass retraction element has a parallel to the upper tong plate extending straight portion and an angled portion thereof, wherein the angled portion can cooperate with the fiber mass withdrawal trough.
- the straight portion is designed so that it can be easily attached to the outer surface of the upper tong plate.
- the straight portion and the straight portion bent portion are formed integrally with each other. The angle between the straight section and the angled section is dependent on the geometric dimension of the pulp retractable trough.
- the fiber mass retraction element adds after the key-lock principle in the pulp retraction trough and thus allows a mechanical impressions of the pulp in the withdrawal trough and thus optimal and trouble-free retraction of the pulp in the direction of the feed cylinder before the nip fully formed.
- the straight portion of the fiber mass retraction element has a preferably slot-shaped groove which, in conjunction with a locking means, enables a displacement and fixation of the fiber mass retraction element relative to the upper tong plate.
- a locking means can preferably be a screw or clamp connection are used to ensure the fixation.
- the slot-shaped groove serves as a guide for the festival Adjusting means, wherein the locking means is mounted either fixed in the form of a rivet or releasably in the form of a screw on the upper tong plate.
- the fiber mass retraction element is made of the same material as the upper tong plate.
- the material for the upper tong plate as well as the fiber mass retraction element is stainless steel.
- the fiber mass retraction element is made of a different material than the upper tong plate, in particular made of plastic or aluminum.
- plastic or aluminum is to be seen above all because of their low mass in comparison to the stainless steel. Since the fiber mass retraction element comes into contact with the wadding web when the fiber mass retraction element cooperates with the fiber mass retraction tray, due to the choice of material there is also a minimal risk that the wad web will be mechanically damaged by the fibrous mass retraction member when retracted in the direction of the feed cylinder becomes.
- the pulp retraction trough is arranged between the feed trough and the nipper lip of the lower tongs plate.
- This geometric arrangement of the pulp retraction trough allows a flexible geometric design of the trough regardless of the arrangement of the nip of the nipper lips and / or the feed roller in interaction with the feed trough.
- the geometric configuration of the trough is merely to be designed so that upon engagement of the angled portion of the fiber mass retraction element in the fiber mass retraction trough the wadding can be correspondingly retracted again in the direction of the feed cylinder to obtain the desired shortened tuft.
- the fiber mass retraction recess particularly preferably has a sliding or guide surface and a stop surface for the fiber mass retraction element.
- the sliding or guide surface enables a simplified interaction of the angled portion of the fiber mass retraction element with the fiber mass retraction trough. In this way, the angled portion is guided in the formation of the nip by the nipper lips in the direction of the stop surface.
- the stop surface of the fiber mass retraction tray another mechanical stop for the pliers.
- the fiber mass retraction element as well as the fiber mass retraction recess extends over the entire width of the lower tong plate. This causes a homogeneous retraction of the cotton web in the direction of the feed cylinder over the entire width, without the risk of distortion transverse to the conveying direction of the cotton web.
- a combing machine is provided with a retractor having nipper unit according to the present invention.
- FIG. 1 shows a schematic side view of a nipper unit with a fiber mass retraction device according to the invention in open nipper position
- FIG. 2 shows an enlarged detail of the fiber mass retraction device according to FIG. 1;
- FIG. 3 shows the nipper unit according to FIG. 1 in an intermediate state with a fiber tuft protruding beyond a nip
- FIG. 4 the nipper unit of FIG. 1 in closed pliers position with different lengths of tuft.
- Fig. 1 shows a nipper unit 10 (short pliers 10) of a combing machine with a reciprocable pliers frame 1 1, wherein the pliers frame 1 1 has a lower pliers plate 12, which with a pliers frame 1 1 movably mounted upper pliers plate 14 in the Pliers lips 13a, 13b, a nip 15 (see FIG. 4) can form.
- a feed cylinder 16 is rotatably mounted in a feed trough 17, wherein the feed cylinder 16 is a discontinuous movement during a KammInstituts performs to present in a known manner a rolled from a roll, not shown Wattebahn 18 or fiber mass to a below the pliers 10 rotatably mounted circular comb 20 for combing out.
- the forceps 10 is transferred to the front position shown in Fig. 1, in which it is open. In this position, a fixed comb 22 pierces into the over the forceps 10 outstanding cotton end 24 a.
- the wadding end 24 enters a clamping line 26 of a subsequent Abreisszylindercrues 28 and is soldered there to a nonwoven fabric 30.
- FIG. 1 shows a fiber mass retraction device 46 with a fiber mass retraction element 48 and a fiber mass retraction trough 56.
- FIG. 2 shows in detail that the fiber mass retraction element 48 is fastened to the upper tong plate 14 on the side facing the feed cylinder 16.
- the fiber mass retraction member 48 has a straight portion 52 which is parallel to the upper tong plate 14 and a portion 54 angled therefrom, which can cooperate with the pulp retraction trough 56.
- the straight portion 52 of the fiber mass retraction element 48 has a slot-shaped groove, not shown, which, in conjunction with another screw 50, enables a detachable connection and fixation of the fiber mass retraction element 48 with respect to the upper tong plate 14.
- the fiber mass retraction element 48 by means of the further screw 50 height adjustable (marked as a double arrow) and allows in this way the adjustment of the position of the angled portion 54 of the fiber mass retraction element 48 with respect to the fiber mass retraction trough 56th
- the pulp retraction trough 56 is formed from the upper side toward the lower side of the lower tong plate 12 and disposed between the feed trough 17 and the lower tong lip 13 a of the lower tong plate 12.
- the pulp retraction recess 56 has a guide surface 58 and a stop surface 60.
- the guide surface 58 allows for simplified cooperation of the angled portion 54 of the fiber mass retraction member 48 with the fiber mass retraction recess 56 and the abutment surface 60 serves as a mechanical abutment for the angled portion 54 in forming the nip 15 (see FIG. 4) between the nipper lips 13a, 13b of the upper tong plate 14 and the lower tong plate 12th
- pliers lip 13b of the upper pliers plate 14 in the detailed representation in addition to the upper pliers lip 13b a pliers 62, wherein the pliers 62 during the formation of the nip 15 with a in the region of the lower pliers lip 13a present pliers trough 64 can cooperate.
- FIGS. 1, 3 and 4 have referred to the detailed illustration of the clamping position. le 15 omitted with respect to the tongs 62 and the upper nipper lip 13 b shown very simplified.
- the mode of operation of the fiber mass retraction device 46 is explained on the basis of the forceps movement during a combing action on a combing machine.
- the upper tong plate 14 moves during the reciprocation of the pliers 10 from an open tong position (see FIG. 1) via an intermediate position (see FIG. 3) into a closed one Pliers position (see Fig. 4).
- Fig. 4 the forceps 10 is shown in the closed position with formation of the nip 15 between the forceps lips 13a, 13b.
- the Abreisszylindercru and the Fixkamm are not shown. 4 shows in particular how, depending on the height adjustment (shown as a double arrow) of the fiber mass retraction element 48a, 48b, 48c to the upper tong plate 14, the protruding tuft 66b according to FIG. 3 is present as a shortened tuft 68a, 68b, 68c.
- a first height adjustment of the fiber mass retraction element 48a is shown in dashed lines and is arranged in the closed tong position above the cotton web 18, so that only the clamping point 15 by the interaction of the two pliers lips 13a, 13b the outstanding tuft 66b according to FIG. dashed line as the first shortened tuft 68a in the direction of the feed cylinder 16 retracts.
- a second height adjustment of the fiber mass retraction member 48b is shown in solid line and cooperates with the fiber mass retraction recess 56 in the closed tong position with the angled portion 54 of the fiber retraction member 48b not fully engaging the fiber mass retraction recess 56 and correspondingly the protruding one Tuft 66b according to FIG. 3 is retracted only as far as the solid line as the second shortened tuft 68b in the direction of the feed cylinder 16.
- a third height adjustment of the pulp retraction member 48c is shown dotted and cooperates with the pulp retraction trough 56 in the closed tongs position with the angled portion 54 of the pulp retraction member 48b fully engaging the pulp retraction trough 56 and corresponding to the protruding tuft 66b Fig. 3 is retracted to the dotted line as the third shortened tuft 68 c in the direction of the feed cylinder 16.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH01054/16A CH712820A1 (de) | 2016-08-16 | 2016-08-16 | Zangenaggregat mit einer Fasermassen-Rückzugsvorrichtung. |
| PCT/IB2017/054460 WO2018033813A1 (de) | 2016-08-16 | 2017-07-24 | Zangenaggregat mit einer fasermassenrückzugsvorrichtung, und kämmmaschine mit einem zangenaggregat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3500699A1 true EP3500699A1 (de) | 2019-06-26 |
Family
ID=59702774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17757882.0A Withdrawn EP3500699A1 (de) | 2016-08-16 | 2017-07-24 | Zangenaggregat mit einer fasermassenrückzugsvorrichtung, und kämmmaschine mit einem zangenaggregat |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3500699A1 (de) |
| CN (1) | CN109563651A (de) |
| CH (1) | CH712820A1 (de) |
| WO (1) | WO2018033813A1 (de) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE433333C (de) * | 1924-10-03 | 1926-08-28 | Jules Weinbrenner | Speisezange fuer Flachkaemmaschinen |
| FR588682A (fr) * | 1924-10-03 | 1925-05-13 | Perfectionnements aux peigneuses rectilignes | |
| US3103041A (en) * | 1960-05-18 | 1963-09-10 | Whitin Machine Works | Fringe control blade for combing machine |
| JPS513217Y1 (de) * | 1969-06-16 | 1976-01-30 | ||
| JPS6011098Y2 (ja) * | 1981-02-15 | 1985-04-13 | 重蔵 真島 | コ−マ−のニッパ−装置 |
| JPH0734332A (ja) * | 1993-07-21 | 1995-02-03 | Hara Shiyokuki Seisakusho:Kk | コーマにおけるニッパフレームの揺動方法及び装置 |
| DE19504148A1 (de) * | 1995-02-10 | 1996-08-14 | Chemnitzer Spinnereimaschinen | Zangenaggregat für eine Kämmaschine mit Rundkammwalze |
| DE10206605A1 (de) | 2002-02-15 | 2003-08-28 | Rieter Ag Maschf | Vorrichtung zum Einstellen des Ecartement |
| EP1449944B1 (de) | 2003-02-21 | 2008-04-02 | Maschinenfabrik Rieter Ag | Zangenaggregat für eine Kämmaschine |
| CH703822A2 (de) * | 2010-09-22 | 2012-03-30 | Rieter Ag Maschf | Zangenaggregat für eine Kämmmaschine. |
| CH705071A2 (de) * | 2011-06-06 | 2012-12-14 | Rieter Ag Maschf | Zangenaggregat einer Kämmmaschine. |
-
2016
- 2016-08-16 CH CH01054/16A patent/CH712820A1/de not_active Application Discontinuation
-
2017
- 2017-07-24 CN CN201780050201.4A patent/CN109563651A/zh active Pending
- 2017-07-24 WO PCT/IB2017/054460 patent/WO2018033813A1/de not_active Ceased
- 2017-07-24 EP EP17757882.0A patent/EP3500699A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN109563651A (zh) | 2019-04-02 |
| CH712820A1 (de) | 2018-02-28 |
| WO2018033813A1 (de) | 2018-02-22 |
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Legal Events
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