EP2352865A1 - Vorrichtung zur druckbelastung der abreisswalze einer kämmvorrichtung - Google Patents
Vorrichtung zur druckbelastung der abreisswalze einer kämmvorrichtungInfo
- Publication number
- EP2352865A1 EP2352865A1 EP09740630A EP09740630A EP2352865A1 EP 2352865 A1 EP2352865 A1 EP 2352865A1 EP 09740630 A EP09740630 A EP 09740630A EP 09740630 A EP09740630 A EP 09740630A EP 2352865 A1 EP2352865 A1 EP 2352865A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- combing
- tear
- roller
- machine frame
- cylinder
- 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
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
-
- 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
-
- 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
- D01G19/18—Roller, or roller and apron, devices, e.g. operating to draw-off fibres continuously
Definitions
- the invention relates to a combing device for combing a fiber material according to the preamble of claim 1.
- a combing machine whereby a tear-off roller cooperates with a tear-off segment of a combing roller for the tear-off process, has already been developed by Heilmann in 1845.
- a tear-off roller here tear-off cylinder
- the fiber package torn off by a tear-off roller in cooperation with a tear-off segment was delivered to a subsequent roller pair. where it is connected to the end of an already formed web, or soldered.
- the pair of rollers is driven by a pilgrim step movement.
- the nipper unit is fixedly mounted in the machine frame, while the rip-off roller, which cooperates with a tear-off, performs a horizontal movement relative to the nipper unit during the combing process.
- the tear-off roller moves only in the radial direction of the combing cylinder, while the nipper unit moves in the horizontal direction to the tear-off roller.
- the combing process and the tear-off process should be better coordinated with respect to the distance between the pliers and the clamping point of the tear-off roller.
- the ends of the tear-off roller are stored in sleeves, which are received in forks.
- the sleeves to achieve the clamping effect of the tear-off rollers, acted upon by weight-loaded hooks.
- the hooks and thus the tear-off roller are loaded by correspondingly attached mechanical springs.
- the embodiment described above has many moving parts, which have a significant limitation in terms of achieving a high Kammspieliere.
- the load device of the tear-off roller shown is relatively sluggish and inflexible in view of high Kammspielbread.
- An adjustment of the clamping force requires a considerable expenditure of time, in particular if it has to be carried out on several combing heads operating side by side.
- the setting of the Ecartement depends on the fiber material, which is presented to the combing machine for processing. Criteria such as the weight of the wadding, the pile (fiber length fraction) and the structure (fiber layer, uniformity) of the wadding provided must be taken into consideration.
- DE-PS 528 653 also shows a tear-off roller which cooperates with a tear-off segment of a combing drum (combing cylinder) for the tear-off process.
- combing cylinder combing drum
- the embodiment shown here also involves a large number of mechanical elements and is relatively sluggish when this would have to be used for high comb numbers, at the time of the publication described, the required comb numbers were still very low compared to today's requirements for high productivity.
- the invention thus has the object to improve known embodiments in which, according to the principle Heilmann a Abreisswalze cooperates with a Abreisssegment a combing cylinder.
- the known loading devices of the tear-off roller are to be improved in order to ensure their effectiveness even at high dynamic loads in today's Kammspieltechnik.
- the loading means consist of pressurized air via a compressed air source Balgzylindern, which are supported in each case with one end directly or indirectly on the machine frame and with its other end on a receptacle in which the tear roller rotatably is stored.
- the bellows cylinders also have very good damping properties and are thus also low in noise and vibration. It is also possible, by changing the compressed air supply to the bellows cylinders, to simply vary the pressure force on the tear-off roller in order, if necessary, to adjust it to other materials.
- bellows cylinders require a small space requirement in the machine and tolerances can be easily compensated for by the flexibility of the bellows cylinders.
- the use of bellows cylinders in this application allows z. As well as a continuous adjustment of the clamping force, as well as a central monitoring of the loading means.
- guide elements are mounted on the axis of the combing cylinder in a rotationally fixed manner, which are formed as cams which surround the circumferential surface of the tear-off roll at a radial distance from the axis of rotation of the combing cylinder, if the tear-off roller is outside the circumferential area of the tear-off segment.
- this device In combination with the use of Belgzylindern this device is achieved, the load and the movement of the tear roller remains constant even at high Kammspielsammlung and no swinging of the system during a Kamm mecanics arises.
- the rotational speed of the tear-off roller can be maintained after the tearing off, whereby it does not have to be accelerated again to the speed of the tear-off segment for the respective subsequent tear-off process.
- the lower tong plate - seen in the direction of the tear-off roller - is fixedly mounted in the machine frame and the receptacle of the tear-off roller is movably mounted in the radial direction of the combing cylinder, wherein the receptacle is in communication with an adjusting device, via which the distance between the tear-off roller and the lower tong plate is adjustable.
- the pitching device connected to the receptacle makes it possible to adjust the distance (ecartement) between the lower pliers plate and the clamping point between the detaching roller and the tear-off segment.
- the Heilmann method is universally applicable and can be used with today's constructive knowledge for higher Kammspielbread, as long as the subsequent soldering process is tuned accordingly. This gives an advantageous combination of the device for the delivery of the tear-off roller to the tear-off segment in conjunction with the simultaneous adjustment possibility of the Ecartement.
- angular deviations can be compensated from their loading direction when an adjustment of the ecartement is made.
- the receptacle consists of two pivoted on one axis levers, the axes are mounted on the machine frame or on an associated with the machine frame element and each lever has a bearing point for the storage of the tear-off, which is between them Bearing points extends. It is advantageous that in each case a bellows cylinder is supported for the load of the tear-off roller on each lever.
- the axes for the levers are mounted on a frame mounted pivotably in the machine frame, at which distance from the Axes guide elements are provided for the levers, each having a stop surface which limits the pivoting movement of the arms in the direction of the combing cylinder and the bellows cylinder are fixed with its one end to the pivotable frame and the other end on a support surface of the respective Armes supported, which is located above the bearings of the tear-off roller.
- the respective support surface has an opening into which an extension projecting beyond the end face of the respective bellows cylinder protrudes when it rests on the support surface. It is advantageous if the extension of the respective bellows cylinder and the opening in the support surface are formed such that together they exert a clamping action. This makes it possible that when a negative pressure to the bellows cylinder lifting the pressure rollers can be generated by the entrainment via the clamping action. Under certain circumstances, so that the lifting and advancing the Abreisswalzen be carried out for Abreisssegment, whereby more guide elements would be unnecessary.
- the axes of the pivotable lever via an adjusting device are adjustable in their position.
- a design is conceivable, wherein the respective axis is mounted eccentrically on a rotatably mounted adjusting disc and at least one means for fixing the adjusting disc is provided.
- a plurality of combing devices are arranged side by side, which work together synchronously with each other and usually also have common drive elements.
- a common adjusting device is provided for all combing devices for a simultaneous adjustment of the distance between the tear-off rollers and the lower tong plates in all combing devices. Since all the combing heads usually have the same material for processing, the same ecartement must be set everywhere.
- Fig. 1 is a schematic side view of a combing head with the claimed device according to the invention during the tearing process.
- Fig. 2 is a schematic side view of Figure 1 during Auskmmvorgang Fig. 3 is a partial view X of Figure 1
- FIG. 4 shows a schematic plan view of a combing machine with several combing heads arranged side by side with adjusting devices claimed according to the invention and their actuation.
- Fig. 1 shows a schematic side view of a combing head, of which several are usually arranged side by side.
- a schematically indicated nipper unit 1 is provided above a combing cylinder 16.
- the combing cylinder 16 is rotatably mounted about the axis 15 in the machine frame. On its circumference, the combing cylinder 16 has a Kämmsegment equipped with sets 19 on which a tear-off segment 20 is arranged opposite.
- rotationally fixed on the axle 15 via hubs 23 cams 22 are mounted, as can be seen in particular from FIG. 3.
- the nipper unit 1 consists of a fixed fixed in the machine frame lower nipper plate 2, on which about an axis 4, an upper nipper plate 3 is pivotally mounted via lever 6.
- Clamping means eg spring arms
- clamping means engage with the pivotable levers 6 of the tong plate 3, over which a clamping force is produced at the clamping point KS between the forceps clamps for clamping a fiber material F when the forceps are closed (see FIG ,
- a feed roller 5 is rotatably arranged, which is connected to a drive, not shown, for the intermittent conveying of the fiber material F.
- a tear-off roller 8 rests on the outer circumference U of the tear-off segment 20 and forms with it a clamping line KL.
- the axis 9 of the tear-off roller 8 is rotatably supported by bearings L in a bearing receptacle 11. Since the bearing elements at both ends of the tear-off roller 8 are the same, they are also provided with the same reference numerals.
- the bearing receptacle 11, which is part of a receptacle 10, is fixedly connected to a lever 12, which is mounted in each case pivotable about an axis 13 on a setting disk 17. This can be seen in particular Figures 1 and 2.
- the adjusting disk 17 is rotatably mounted on a frame 24 about an axis 18. About a screw 14 shown schematically, the rotational movement of the disc 17 is prevented on the axis 18 and fixed to the frame 24 in the set position. In the region of the circumference of the adjusting disc 17 markings 25 are mounted, which allow in conjunction with a mark 26 on the adjusting plate 17 an exact positioning of the adjusting disc.
- the axis 13 is eccentrically mounted at a distance A to the axis of rotation 18 of the adjusting disk 17.
- the adjusting disc 18 z. B. by hand or other means z. B. be rotated counterclockwise. This adjustment can be made using the markers 25, 26. This results in a shift of the nip KL to the lower tong plate 2, whereby the distance E to the distance E1 changes. This distance E is also referred to as "Ecartement", which, as already described, exerts an influence on the combing out operation.
- the adjusting disk 17 is fixed again by means of the screw 14.
- the setting option shown on the adjusting disk 17 with the eccentrically arranged axis 18 represents only an exemplary embodiment of many other ways in which such adjustment can be performed.
- the lever 12 is fixedly connected at its end with a hub 21, via which it is rotatably mounted on the axis 13 already described.
- a pressure force is exerted on the respective lever 12 via a bellows cylinder B1 or B2.
- the respective bellows cylinder B1, or B2 with its center axis a lies with its end face 30 on a support surface 28 of the lever 12.
- the bellows cylinder B1, or B2 is provided with an extension 31, which projects into an opening 33 of the support surface 28 for lateral stabilization.
- the bellows cylinder B1, or B2 are mounted in a head part 35, at which at the same time the supply lines 37, 38 for the Applying compressed air from a compressed air source 40 via a valve 42 takes place.
- the valve 42 is controlled via the line 43 by a control unit ST.
- a bracket 36 is attached, which is fastened via the screws 44 to the frame 24.
- the frame parts 24 (FIG. 3) are connected to one another by struts V1, V2. There may be provided further such struts for mechanical stabilization.
- the frame 24 is pivotally mounted about a pivot axis 46 on the machine frame MS.
- a pivot axis 46 on the machine frame MS.
- free access in the area of the nipper unit 1 is made possible for maintenance and cleaning purposes.
- z. B. on the frame 24, or on the transverse strut V1 cams 48 are mounted, which, depending on the position, engage in correspondingly formed locking devices 50a and 50b and fixed.
- the locking devices 50a, 50b in each case consist of a latch 52a, or 52b provided with oblique contact surfaces, which are mounted on the machine frame MS.
- a U-shaped stop 58 is provided on the frame 24, on the support surface 60, the lower edge 61 of the lever 12 for Resting comes. Ie. the pivotal movement of the lever 12 about its axis 13, which would take place as a result of the weight of the tear-off roller when pivoting in the dot-dash line position is prevented by the respective stop 58.
- the support surface 60 in this operating position shown a small distance from the lower edge 61 of the lever 12 so that the pressurization of the tear-off roller 8 is not hindered by the bellows cylinder B1, B2.
- the fiber package P withdrawn via the action of the nip line KL from a fiber tuft FB is placed on the end of a fiber fleece V already formed on a screen drum T and brazed thereto with partial overlap.
- the nonwoven fabric V thus formed is removed via take-off rollers 64 of the screen drum T and fed to a device not shown in detail for forming a sliver.
- a negative pressure is applied to guide the fiber web V.
- the screen drum T, or the device for forming a combed nonwoven fabric can, for. B. the execution correspond, as shown and described in detail in the published WO 2006/012759 A1.
- the locking device 50a which holds the frame 24 in the operating position, is designed in such a way that no automatic unlocking can take place during operation due to the pressure force applied via the bellows cylinders B1, B2. Under certain circumstances, additional elements (not shown) to install, so that the frame 24 is securely locked in the operating position against the pressure force of the bellows cylinder.
- the circumferential surface U1 of the cam disk 22 is located at a small distance from the circumferential surface U2 of the tear-off roller 8.
- the tear-off roller 8 with the tear-off segment 20 can thus provide a clamping line KL for clamping the fiber material F. form.
- the fibrous material F can be supplied in the form of a cotton wool or in the form of juxtaposed slivers to the nipper unit 1 from a corresponding source (cotton wool, teapot).
- the tear-off segment 20 moves outside the effective range of the tear-off roller 8, whereby the tear-off roller 8 in the radial direction to the axis 15 by the pressure force of the bellows cylinder B1, B2 or its own weight (if the pressure load is reduced by the bellows cylinder) the combing cylinder 16 are moved until the peripheral surface U2 of the tear-off roller comes to rest on the peripheral surface U1 of the cam 22.
- the cams 22 are fastened in a rotationally fixed manner on the axis 15 of the combing cylinder 16 with a hub 23. As shown schematically in FIG. 3, the tear-off segment 20 can also be secured against rotation on this hub 23.
- the combing segment 19 enters the region of the nipper unit 1, which in the meantime by a not shown in detail device was closed and forms a clamping point KS for the out of the pliers hanging tuft FB.
- the tuft FB is engaged by the worsted 19 and is combed out.
- the radius R1 of the cam disk 22 is greater than the radius RK of the outer envelope surface of the combing segment 19, which ensures that the circumferential surface U2 of the tear-off roller 8 is at a distance from the outer enveloping circle of the combing segment 19 during the combing process shown in FIG.
- the nipper unit is opened again and the tuft FB is lifted by the tear-off segment 20 and thus enters the region of the nip KL between the tear-off segment 20 and the tear-off roller 8.
- the peripheral surface U1 of the cam 22 comes the peripheral surface U2 of the tear-off roller 8 again in contact with the tear-off segment 20.
- the tear-off roller is constantly in rotary motion and thus does not have to be accelerated during the transition to the tear-off segment, which favors a problem-free tear-off process.
- the tear-off process starts again, whereby again the fixed comb K comes into engagement.
- FIG. 4 schematically shows a row of side-by-side combing devices (referred to as "combing heads” for short), each of which is provided with an adjustable tear-off roller 8, as shown in the embodiment of FIG.
- the adjustment of the position of the respective pivot axis 13 of the pivot arms 12 in this case takes place via a hub 66, which is connected to the respective pivot axis 13 and each with a servo motor M1 to M4.
- the servomotors M1 and M2 are connected via the control line 68 and the servo motors M3 and M4 via the control line 70 to the central control unit.
- two groups I and II of combing heads K1, K2, and K3, K4 have been formed with respect to the control of the adjusting devices S1, S2, and S3, S4.
- group-wise control also includes an embodiment in which the combing heads form only one group, in which each combing head K1-K8 is provided with one servomotor S1-S8 for the simultaneous adjustment of the detaching rollers 8, wherein all servomotors S1 to S8 are simultaneously controlled by the central control unit via a common control line (not shown).
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 |
---|---|---|---|
CH16742008A CH699789A2 (de) | 2008-10-24 | 2008-10-24 | Kämmvorrichtung zum Kämmen eines Fasermaterials mit Druckbelastung der Abreisswalze. |
PCT/CH2009/000332 WO2010045747A1 (de) | 2008-10-24 | 2009-10-15 | Vorrichtung zur druckbelastung der abreisswalze einer kämmvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2352865A1 true EP2352865A1 (de) | 2011-08-10 |
EP2352865B1 EP2352865B1 (de) | 2012-09-05 |
Family
ID=41811333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09740630A Not-in-force EP2352865B1 (de) | 2008-10-24 | 2009-10-15 | Vorrichtung zur druckbelastung der abreisswalze einer kämmvorrichtung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2352865B1 (de) |
CN (1) | CN102264958B (de) |
CH (1) | CH699789A2 (de) |
WO (1) | WO2010045747A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9993815B2 (en) | 2011-07-22 | 2018-06-12 | Vanrx Pharmasystems Inc. | Method for protecting and unprotecting the fluid path in a controlled environment enclosure |
CN102704052B (zh) * | 2012-06-04 | 2014-05-07 | 中原工学院 | 一种精梳机分离罗拉输出棉网集聚喇叭口位置的确定方法 |
CH710260A2 (de) | 2014-10-16 | 2016-04-29 | Rieter Ag Maschf | Kämmmaschine. |
CH714581A1 (de) * | 2018-01-23 | 2019-07-31 | Rieter Ag Maschf | Antriebsvorrichtung für ein Zangenaggregat einer Kämmmaschine. |
CH716167A1 (de) * | 2019-05-09 | 2020-11-13 | Rieter Ag Maschf | Abreisszylinderaggregat mit einer Vorrichtung für Druckzylinder von Abreisszylinderpaaren einer Kämmmaschine. |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH683533A5 (de) * | 1991-09-05 | 1994-03-31 | Rieter Ag Maschf | Abreisszylinderaggregat für eine Kämmaschine. |
DE19504010A1 (de) * | 1995-02-09 | 1996-08-14 | Chemnitzer Spinnereimaschinen | Kämmaschine mit Zangenapparat, Rundkämmwalze, Fixkamm und Abreißwalzenpaar |
DE19758153A1 (de) * | 1997-12-30 | 1999-07-01 | Rieter Ag Maschf | Abreißvorrichtung in einer Kämmaschine |
DE10112296B4 (de) * | 2001-03-08 | 2010-04-15 | Kraussmaffei Berstorff Gmbh | Verfahren und Vorrichtung zur kontinuierlichen Erzeugung von Produkten auf einem Kalander |
CN100364486C (zh) * | 2004-11-01 | 2008-01-30 | 蒋中为 | 一种医疗美容用强脉冲光发生装置 |
CH699284A2 (de) * | 2008-07-31 | 2010-02-15 | Rieter Ag Maschf | Anpressvorrichtung für Kalanderwalzen. |
-
2008
- 2008-10-24 CH CH16742008A patent/CH699789A2/de not_active Application Discontinuation
-
2009
- 2009-10-15 CN CN200980152199.7A patent/CN102264958B/zh not_active Expired - Fee Related
- 2009-10-15 WO PCT/CH2009/000332 patent/WO2010045747A1/de active Application Filing
- 2009-10-15 EP EP09740630A patent/EP2352865B1/de not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2010045747A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2352865B1 (de) | 2012-09-05 |
CN102264958B (zh) | 2013-06-19 |
CN102264958A (zh) | 2011-11-30 |
CH699789A2 (de) | 2010-04-30 |
WO2010045747A1 (de) | 2010-04-29 |
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