WO2004088012A1 - Clamping unit for a combing machine - Google Patents
Clamping unit for a combing machine Download PDFInfo
- Publication number
- WO2004088012A1 WO2004088012A1 PCT/CH2004/000100 CH2004000100W WO2004088012A1 WO 2004088012 A1 WO2004088012 A1 WO 2004088012A1 CH 2004000100 W CH2004000100 W CH 2004000100W WO 2004088012 A1 WO2004088012 A1 WO 2004088012A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pliers
- feed trough
- feed
- feed roller
- fiber material
- Prior art date
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 tongs unit of a combing machine with a tongs frame that can be moved back and forth, which has a tongs plate, which has an upper tongs plate that is movably mounted in the tongs frame in the region of the
- Pincer plate lip can form a clamping point and with a feed roller mounted in the pincer frame, which cooperates with a feed trough above the pincer plate for the transport of the fiber material, a pair of tear-off cylinders mounted in the machine frame being arranged downstream of the pincer unit and at least one pinch point for the fiber material between the feed trough and the feed roller ,
- EP-0 816 540 an embodiment is shown in EP-0 816 540, wherein a feed trough is arranged above a tong plate and cooperates with a feed roller. In order to vary the clamping line between the feed roller and the feed trough, the feed trough is fastened in an adjustable manner with respect to the position of the feed roller.
- the device shown has an additional deflection element following a first deflection in the feed trough in order to increase the adhesive force of the fibers within the fiber mixture and thus to better control floating fibers.
- This first deflection in the example of EP-0 816 540 in the area of the exit area of the feed trough defines the last nip between the feed trough and the feed roller before the fiber material or the cotton web leaves the nip between the feed roller and feed trough.
- the distance between this deflection point or the last clamping point and the clamping line between the subsequent tear-off cylinders forms the "tear-off distance" for the tear-off process of the fiber bit.
- this tear-off distance should only be insignificantly larger than the longest fiber of the stack of fiber material to be processed.
- the invention is therefore based on the object of proposing a device by means of which a simple adjustment of the tear-off distance can be carried out without the position of the feed trough in relation to the feed roller changing.
- Fiber material, or the desired combing is necessary to adjust the ecartement, this can be compensated for by adjusting the additional agent in the food trough in order to get back to optimal conditions (tear-off distance) during the tear-off process.
- the means is designed as a guide element which extends within the feed trough over the width of the feed trough and defines at least one clamping point for the fiber material with the feed roller. It is provided that - seen in the transport direction of the fiber material - the front end of the guide element forms the foremost clamping point for the fiber material. This can be achieved in that the arcuate surface of the guide element, which faces the feed roller, has a smaller radius than the radius of the feed roller.
- the pliers plate be provided in the area of the feed trough with receptacles which are designed to receive means attached to the respective guide element in order to fix the guide means in their installed position.
- At least one row or more rows of receptacles can be provided - as seen across the width (B) of the food trough. This ensures simple assembly, since the guide elements only have to be inserted into the corresponding receptacles.
- At least one further adjustable guide means be provided in the feed trough, which forms an additional clamping point with the feed roller. This means that a second nip can be defined in the area of the feed roller.
- FIG. 1 shows a schematic side view of a known pliers unit
- FIG. 2 shows an enlarged partial view according to FIG. 1 with the guide elements claimed according to the invention
- FIG. 3 shows a sectional view A-A according to FIG.
- Fig.5 A stepless adjustment of the guide elements according to Fig.2
- FIG. 1 shows a pliers unit 1, which is pivotally mounted on the crank arms 2, 3.
- crank arms 2 are each pivotally mounted on the side of a schematically indicated circular comb 4 on its circular comb shaft 5.
- the other end of the swivel arms 2 is rotatably attached to the tong frame 8.
- the rear swivel arm 3 (there may also be two) is rotatably mounted on a pliers shaft 10.
- the opposite free end of the swivel arm 3 is rotatably connected to the pliers frame 8 via a shaft 9.
- the pliers assembly 1 essentially consists of a lower pliers plate 12 firmly connected to the pliers frame 8 and an upper pliers plate 14 (sometimes also called a pliers knife) which is attached to two pivot arms 15, 15 '. These pivot arms are pivotally attached to the pincer frame 8 via a pivot axis 16.
- the swivel arms 15, 15 ' are each connected to a spring strut 18, which in turn is mounted on a driven eccentric 21 via an axis 20. Seen in the material flow direction T is behind that
- Pliers unit a tear-off cylinder pair 24 is provided.
- the pliers unit 1 is in the view according to FIG. 1 in a front position in which it is open and the tearing-off process is carried out with the end of the cotton wool web W. This end is commonly referred to as fiber beard FB.
- this foremost position also called the front dead center position
- a first deflection for the cotton web transported between the feed roller 27 and the feed trough 26 from which it moves in the direction of the clamping line PA the tear-off cylinder 24 transported, bez. is subtracted.
- the distance X is equivalent to the tear-off distance during the tear-off process.
- a compressive force between the feed roller 27 and the feed trough 26 is exerted on the cotton web at least in partial areas of the conveying gap.
- the amount of pressure on the fiber mass is defined by the distance between the feed trough and the feed roller. This means that at the point where this distance is the smallest, the compressive force acting on the fiber mass is greatest. This point forms the actual clamping point, which defines the tear-off distance X.
- FIG. 2 shows an enlarged partial view of FIG. 1 with the guide means claimed according to the invention, which is identified below with the term “insert E”.
- This insert E extends, as shown in the sectional view A-A in FIG. 3, over the width B of the feed trough 26 and lies on its curvature.
- the clamping point P is shifted to P1, which also changes the tear-off distance to X1.
- the curvature of the insert E, which faces the feed roller, has a smaller radius R1 than the radius R of the feed roller 27.
- the corresponding attachment within the feed trough ensures that a precisely defined clamping point for the cotton web is formed between the insert E and the feed roller at the front end of the insert E.
- An increase in tear-off distance X1 may be necessary, for example, if a material to be combed out has to be combed with a larger stack (indicator for fiber length). That is, by using a sliding insert E, the tear-off distance X can be adapted to different stack lengths without the ecartement e having to be changed. On the other hand, it is of course possible, if the ecartement has to be adjusted (e.g. to change the proportion of combed animals), that the adjustment of the insert is optimal again Ratios can be set during the tear-off process. For example, when the compartment e is increased, the insert E can be adjusted in the direction of the tear-off cylinder in order to keep the tear-off distance X constant.
- the insert E is provided with a plurality of pins S which are spaced apart across the width B and protrude into the receptacles 29 and thus secure the insert E in the transport direction T against displacement. If necessary, additional safeguards could also be provided which secure the pins S in the direction of their longitudinal axis in order to prevent them from being lifted out of the feed trough. For the sake of clarity, lateral guides for the cotton in the area of the feed trough 26 have not been shown.
- FIG 4 shows a further exemplary embodiment, a second insert E2 being inserted in the feed trough 26, which is inserted in the region of the introduction of the cotton wool W between the feed roller 27 and the feed trough 26.
- this insert E2 can also be displaced in its position in the transport direction T.
- the position of the insert E2 allows an additional clamping point KP to be defined between the feed cylinder 27 and the insert E2.
- This further clamping point KP has an influence on the retention force on the fibers during the tear-off process and during the transport of the cotton wool during the feeding process.
- Insert E defines the foremost terminal point P1.
- Both inserts E, E2 have pins S which protrude into receptacles 29 in the feed trough 26 and thus ensure that they are fixed in position.
- the inserts E and E2 also have, as described in FIG. 2, a smaller radius of curvature R1 than the radius R of the feed roller 27. This defines an exact clamping line.
- 5 shows a further embodiment, the insert E being firmly connected on both sides to an arm 31, which are connected to a disk 33 on their opposite sides. These disks 33 are pivotally mounted on an axis 32 shown schematically. The axis 32 coincides with the center point of the radius r of the feed trough 26.
- the disks 33 are each provided with two elongated holes 34 through which screws 35 protrude.
- the screws are received in threaded bores (not shown in more detail) of a schematically indicated end plate 38 which is connected to the frame 8 and at the same time can also be provided for the storage of the feed roller.
- a schematically indicated end plate 38 which is connected to the frame 8 and at the same time can also be provided for the storage of the feed roller.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04714255A EP1644560B1 (en) | 2003-04-02 | 2004-02-25 | Clamping unit for a combing machine |
JP2006504145A JP2006522229A (en) | 2003-04-02 | 2004-02-25 | Comb nipper equipment |
DE502004003416T DE502004003416D1 (en) | 2003-04-02 | 2004-02-25 | TONGUE UNIT OF A K MILLING MACHINE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH5742003 | 2003-04-02 | ||
CH574/03 | 2003-04-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004088012A1 true WO2004088012A1 (en) | 2004-10-14 |
Family
ID=33102864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2004/000100 WO2004088012A1 (en) | 2003-04-02 | 2004-02-25 | Clamping unit for a combing machine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1644560B1 (en) |
JP (1) | JP2006522229A (en) |
CN (1) | CN1768173A (en) |
DE (1) | DE502004003416D1 (en) |
WO (1) | WO2004088012A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006002390A1 (en) * | 2006-01-17 | 2007-07-19 | Maschinenfabrik Rieter Ag | Apparatus for adjusting a textile machine comprises a control unit that actuates devices for adjusting feed devices, processing devices, conveyors and/or a draw frame |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1936013B1 (en) * | 2006-12-21 | 2009-09-30 | Maschinenfabrik Rieter Ag | Draw-off roller for a combing machine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0452677A1 (en) * | 1990-04-14 | 1991-10-23 | Maschinenfabrik Rieter Ag | Combing machine |
DE19504134A1 (en) * | 1995-02-09 | 1996-08-14 | Chemnitzer Spinnereimaschinen | Comber |
EP0816540A1 (en) * | 1996-06-24 | 1998-01-07 | Howa Machinery, Ltd. | Method for delivering fiber bundle in comber and nipper device for working therefore |
-
2004
- 2004-02-25 CN CN 200480009039 patent/CN1768173A/en active Pending
- 2004-02-25 EP EP04714255A patent/EP1644560B1/en not_active Expired - Lifetime
- 2004-02-25 DE DE502004003416T patent/DE502004003416D1/en not_active Expired - Fee Related
- 2004-02-25 JP JP2006504145A patent/JP2006522229A/en not_active Withdrawn
- 2004-02-25 WO PCT/CH2004/000100 patent/WO2004088012A1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0452677A1 (en) * | 1990-04-14 | 1991-10-23 | Maschinenfabrik Rieter Ag | Combing machine |
DE19504134A1 (en) * | 1995-02-09 | 1996-08-14 | Chemnitzer Spinnereimaschinen | Comber |
EP0816540A1 (en) * | 1996-06-24 | 1998-01-07 | Howa Machinery, Ltd. | Method for delivering fiber bundle in comber and nipper device for working therefore |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006002390A1 (en) * | 2006-01-17 | 2007-07-19 | Maschinenfabrik Rieter Ag | Apparatus for adjusting a textile machine comprises a control unit that actuates devices for adjusting feed devices, processing devices, conveyors and/or a draw frame |
DE102006002390B4 (en) * | 2006-01-17 | 2021-04-15 | Maschinenfabrik Rieter Ag | Adjustment device for a textile material processing machine |
Also Published As
Publication number | Publication date |
---|---|
DE502004003416D1 (en) | 2007-05-16 |
JP2006522229A (en) | 2006-09-28 |
EP1644560B1 (en) | 2007-04-04 |
CN1768173A (en) | 2006-05-03 |
EP1644560A1 (en) | 2006-04-12 |
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