EP3610060A1 - Speisemulde und speisevorrichtung mit einer speisemulde - Google Patents
Speisemulde und speisevorrichtung mit einer speisemuldeInfo
- Publication number
- EP3610060A1 EP3610060A1 EP18717129.3A EP18717129A EP3610060A1 EP 3610060 A1 EP3610060 A1 EP 3610060A1 EP 18717129 A EP18717129 A EP 18717129A EP 3610060 A1 EP3610060 A1 EP 3610060A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- elastic lip
- feed
- trough
- contact surface
- contact
- 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
- D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
- D01G15/02—Carding machines
- D01G15/12—Details
- D01G15/40—Feeding apparatus
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
- D01G15/02—Carding machines
- D01G15/12—Details
- D01G15/14—Constructional features of carding elements, e.g. for facilitating attachment of card clothing
- D01G15/20—Feed rollers; Takers-in
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G31/00—Warning or safety devices, e.g. automatic fault detectors, stop motions
- D01G31/003—Detection and removal of impurities
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
- D01G9/14—Details of machines or apparatus
- D01G9/16—Feeding arrangements
Definitions
- the present invention relates to a feed trough for a feed device on a spinning preparation machine comprising a base body and at least one elastic lip extending along a working width of the feed trough and a feed device for feeding fiber flocks into a spinning preparation machine with a feed roll and a feed trough.
- EP 0 926 274 A2 discloses a feed trough for use in a feed device.
- the feed trough has a fastened to a support member, gap-forming element which is formed elastically deformable.
- at least larger foreign bodies do not push up to the elastic zone.
- Such bodies are clamped before the elastic edge zone between the gap-forming element and the feed roller.
- the feed trough rotates as a whole against the bias of a spring about an axis. This fact is detected by a sensor and thus the foreign body detected. The foreign body detection can then lead, for example, to stop the drive for the feed roller and / or to trigger an alarm.
- a disadvantage of the said feed trough is that the entire feed trough must be rotatable about an axis. Since the gap formed by the gap-forming element must have a precise width to clamp the fiber material in the desired thickness, and the feed trough must be positioned exactly. In conjunction with a feed trough formed rotatable about an axis, this means a considerable design effort.
- the object of the present invention is therefore to provide a feed trough which allows a gap with a precise width and at the same time requires less design effort.
- the object is achieved by a feed trough and a feed device with the features of the independent claims.
- a feed trough for a feed device is proposed on a spinning preparation machine.
- the spinning preparation machine can be a card, a carding machine or a cleaner.
- the feed trough has a main body and at least one extending along a working width of the feed trough elastic lip.
- the elastic lip forms a gap between itself and a feed roller of the feed device.
- the feed trough has a contact surface and means for detecting a contact between the elastic lip and the contact surface are provided.
- the means for detecting a contact comprise an electrical insulation between the elastic lip and the contact surface and an electrical voltage source.
- the electric voltage source applies a voltage between the elastic lip and the contact surface and the contact between the elastic lip and the contact surface is detected by closing the circuit.
- the voltage applied by the electric voltage source between the elastic lip and the contact surface is between 1.5 V and 32 V, preferably between 12 V and 28 V.
- these voltages are easy to generate and, on the other hand, they do not require extremely sensitive detectors.
- the voltages are small enough not to pose a threat to the health of the operator should contact with either or both of the electrodes occur.
- the means for detecting a contact may comprise a piezoelectric element.
- Piezoelectric elements are also inexpensive, reliable and largely maintenance-free.
- the piezoelectric element can be attached to the elastic lip and / or on the contact surface. In a contact between the elastic lip and the contact surface, a pressure is then exerted on the piezoelectric element, which in turn results in an electrical voltage, which is detected by a sensor.
- the elastic lip and the contact surface form an opening to a cavity, which, inter alia, allows the mobility of the elastic lip.
- a seal is advantageously arranged between the elastic lip and the contact surface. This seal is so far deformable that it can be suppressed in a deformation of the elastic lip and thus does not hinder the electrical contact between the elastic contact surface or the pressure on the piezoelectric element.
- a spacer strip is arranged between the main body of the feed trough and the elastic lip. As a result, it is possible to achieve an optimum distance between the base body and the elastic lip for the clamping of the fiber material. So that this distance can be adapted for different fiber lengths, the spacer strip is preferably exchangeable and / or adjustable.
- the elastic lip made of steel, in particular chromium steel, since these materials have good elasticity with good spring strength. Chrome steel is also corrosion resistant.
- a wall thickness of the elastic lip at its front end is preferably between 1, 0 mm and 4.0 mm, more preferably between 1, 5 mm and 2 mm, as this provides the necessary spring strength.
- the feed trough on a support bar wherein the contact surface of the support bar is assigned.
- the support strip is arranged at a distance from the elastic lip, that the distance can be closed by an elastic deformation of the elastic lip. If there were no support bar, a very large foreign body could deform the elastic lip so much that it leaves the elastic area and then does not return to its previous shape. The support bar prevents this and thus allows a longer life of the elastic lip.
- a particularly suitable material for the support strip is aluminum, since it has a high dimensional stability with a low weight.
- this is divided along its working width into at least two segments, each segment is associated with an elastic lip. This simplifies the adjustment of the gap created by the elastic lip, since it is no longer necessary to set a constant gap width over the entire working width.
- each segment is associated with a piezoelectric element or the individual segments associated elastic lips are electrically isolated from each other and assigned to separate circuits. So it is separately possible for each segment to recognize a foreign body. If this is indicated to the operating personnel, the search for the foreign body is simplified, the foreign body can therefore be removed faster and production can be continued more quickly.
- the feed trough comprises an audible and / or visual alarm which is triggered when a contact between the elastic lip and the contact surface takes place. Such an alarm alerts the operator to this contact, and thus usually to a detected foreign object. The operator can then stop production and / or remove the foreign matter.
- the feed trough is formed according to the preceding description, wherein said features may be present individually or in any combination.
- a feed device for feeding fiber flakes into a spinning preparation machine in particular a card, a carding machine or a cleaner.
- the feed device has a feed roller and a feed trough as described above.
- the feed trough has a base body, at least one elastic lip extending along a working width of the feed trough, a contact surface and means for detecting a contact between the elastic lip and the contact surface. This reduces the design effort and the elastic lip can be adjusted easily.
- the feed device comprises a control device which interrupts the feed of the fiber flakes upon contact between the elastic lip and the contact surface and stops the feed roller.
- the control device rotates after the feed roller has come to a standstill, this back by a predetermined or predeterminable angle. In this case, or is this angle is set so that the foreign body enters an area from which it can be easily removed by the operator.
- FIG. 1 shows a schematic side view of a card
- FIG. 2 a shows a schematic side view of a feed device
- FIG. 2b shows the schematic side view of the feed device from FIG. 2a with a fiber mat
- FIG. 2c shows the schematic side view of the feed device from FIG. 2b with a foreign body
- FIG. 3 shows a schematic side view of a further feed device
- Figure 4 is a schematic side view of another feed device
- Figure 5 is a schematic front view of a feed trough.
- Figure 1 shows a schematic side view of a card 1.
- the fibers are transported in the carding machine 1 from left to right.
- a fiber mat 2 first passes over a feed plate 3 and then enters a feed device 4.
- the feed device 4 has a feed trough 5, which interacts with a feed roller 6.
- the fiber mat 2 clamped between the feed trough 5 and the feed roller 6 is then fed to a licker-in roller 7.
- FIG. 1 shows a schematic side view of a feed device 4 according to the invention.
- This feed device 4 may be part of the carding machine 1 shown in Figure 1, but it may also be part of a carding machine or a cleaner.
- the feed device 4 has a feed trough 5 and a feed roller 6.
- a part of the Vorreisserwalze 7 is still shown.
- the feed trough 5 has a main body 13, which is partially protected by an apron 14 from wear. Furthermore, a spacer strip 15 is arranged on the base body 13 in order to allow an optimum distance between the base body 13 and an elastic lip 16.
- the spacer strip 15 is designed to be interchangeable, so that it can be adapted to the respective fiber length. For very long fibers, the spacer bar 15 can even be omitted altogether.
- the elastic lip 16 is arranged so that fibers between it and the feed roller 6 can be clamped.
- a support strip 17 is also arranged on the side facing away from the feed roller 6 of the elastic lip 16.
- the elastic lip 16 are at least as far elastically deformed until it touches the support bar 17.
- the support strip 17 is a further deformation of the elastic lip 16, for example, by a hard foreign body in the fiber material, excluded.
- the elastic lip 16 is thus not deformed in particular in an area in which a permanent deformation occurs. A return of the elastic lip 16 in its original shape and position is thus always guaranteed.
- An electrical insulation 18 isolates the elastic lip 16 from the support strip 17.
- the elastic lip 16 is connected to the support strip 17 via a voltage source 19 and a current measuring device 20. Since the elastic lip 16 is electrically insulated from the support strip 17, the circuit is normally open and the current measuring device 20 measures no current. If, however, the elastic lip 16, for example, by a hard foreign body, deformed so far that it touches a contact surface 21 of the support bar 17, then the circuit is closed and there is current that measures the current measuring device 20. In order to indicate the contact of the elastic lip 16 with the contact surface 21, and thus the detection of the foreign body, the current measuring device 20 is connected to an audible and / or visual alarm 22, which indicates to the operating personnel the foreign body.
- the current measuring device 20 is also connected to a control device 23 which stops the feed roller 6 in the detection of a foreign body, so that the foreign body does not penetrate further and causes no major damage. It is particularly advantageous if the control device 23, after having stopped the feed roller 6, still rotates backwards so far that the foreign body comes out below the elastic lip 16 and can be easily removed by the operating personnel.
- a slightly deformable seal 25 is arranged.
- FIG. 2 b shows the schematic side view of the feed device 4 from FIG. 2 a in operation, wherein the illustration of the circuit has been omitted for better clarity.
- a fiber mat 2 is clamped between the elastic lip 16 and the feed roller 6.
- the elastic lip 16 is slightly deformed, but still makes no contact with the contact surface 21st
- the seal 25 is slightly compressed.
- Figure 2c shows the schematic side view of the feed device 4 of Figure 2b, but this time with a hard foreign body 26 in the fiber mat 2. This hard foreign body 26 pushes the elastic lip 16 so far in the direction of the support bar 17 to the elastic lip 16, the contact surface 21 of Support bar 17 touched.
- the same reference numerals are used for features that are identical and / or at least comparable compared to other embodiments in their design and / or mode of action. Unless these are explained in detail again, their design and / or mode of action corresponds to the design and mode of action of the features already described above.
- the contact between the elastic lip 16 and the contact surface 21 is detected by a piezoelectric element 27.
- the piezoelectric element 27 is in this case arranged on the contact surface 21 of the support strip 17, but it may also be arranged on the elastic lip 16.
- pressure is applied to the piezoelectric element 27, resulting in an electric voltage between two electrodes of the piezoelectric element 27. This electrical voltage is measured and thus the contact detected.
- the feed trough 5 is shown without spacer bar, which is optimal for particularly long fiber lengths.
- the spacer strip 15 is designed as an adjustable linkage 28. It can thus be adjusted to different fiber lengths without costly conversion.
- FIG. 4 shows a schematic front view of a feed trough 5.
- the elastic lip 16 is divided into four segments 16.1, 16.2, 16.3 and 16.4. Of course, a different number of segments is possible. The individual segments are shorter than a single elastic lip 16 and can be better adjusted over their width.
- the individual segments of the elastic lip 16 are also electrically isolated from each other.
- an insulating layer 30 is attached, of which only one has been provided with a reference numeral for the sake of clarity.
- the individual segments are connected via a respective current measuring device with the voltage source.
- a foreign body in the fiber mat it can be recognized in which segment this foreign body is located. This is preferably indicated to the operating personnel so that the operating personnel can immediately search for the foreign body in the correct segment and then remove it.
- the present invention is not limited to the illustrated and described embodiments. Variations within the scope of the claims are also possible as a combination of features, even if they are shown and described in different embodiments.
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 |
|---|---|---|---|
| CH00506/17A CH713691A1 (de) | 2017-04-13 | 2017-04-13 | Speisemulde und Speisevorrichtung mit einer Speisemulde. |
| PCT/IB2018/052082 WO2018189608A1 (de) | 2017-04-13 | 2018-03-27 | Speisemulde und speisevorrichtung mit einer speisemulde |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3610060A1 true EP3610060A1 (de) | 2020-02-19 |
| EP3610060B1 EP3610060B1 (de) | 2022-05-04 |
Family
ID=61952752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18717129.3A Active EP3610060B1 (de) | 2017-04-13 | 2018-03-27 | Speisemulde und speisevorrichtung mit einer speisemulde |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3610060B1 (de) |
| CN (1) | CN110494601B (de) |
| CH (1) | CH713691A1 (de) |
| WO (1) | WO2018189608A1 (de) |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1411766A (fr) * | 1964-07-28 | 1965-09-24 | Cintas Rigidas Textiles | Dispositif de contrôle des mèches et nappes dans les machines de filature |
| DE2440223A1 (de) * | 1974-08-22 | 1976-03-04 | Fritz Stahlecker | Vorrichtung zum zufuehren eines faserbandes fuer offenend-spinnaggregate |
| CH623361A5 (de) * | 1977-07-18 | 1981-05-29 | Rieter Ag Maschf | |
| DE3912115A1 (de) * | 1989-04-13 | 1990-10-18 | Hollingsworth Gmbh | Reinigungsvorrichtung fuer textilfasern |
| IT1236911B (it) * | 1989-12-21 | 1993-04-26 | Marzoli & C Spa | Procedimento e dispositivo di alimentazione di materiale in fibre in una macchina di preparazione alla filatura, in particolare un apritoio |
| DE59811509D1 (de) * | 1997-12-23 | 2004-07-08 | Rieter Ag Maschf | Elastische Speisemulde |
| DE19855571A1 (de) * | 1998-12-02 | 2000-06-08 | Truetzschler Gmbh & Co Kg | Vorrichtung an einer Spinnereimaschine zum Herstellen eines Faserverbandes, z.B. aus Baumwolle, Chemiefasern |
| IT1319668B1 (it) * | 2000-11-17 | 2003-10-23 | Marzoli Spa | Carda a cappelli con alimentazione plurima di fibre in materassino. |
| DE10118067A1 (de) * | 2001-04-11 | 2002-10-17 | Truetzschler Gmbh & Co Kg | Vorrichtung an einer Krempel oder Karde zur Vergleichmäßigung des Faserflors oder -bandes |
| DE10132711A1 (de) * | 2001-07-05 | 2003-01-16 | Truetzschler Gmbh & Co Kg | Vorrichtung an einem Reiniger, einer Karde o. dgl. zum Reinigen und Öffnen von Textilmaterial, insbesonder Baumwolle |
| CN2673890Y (zh) * | 2003-12-02 | 2005-01-26 | 欧阳俊青 | 具有压力传感器的给棉板 |
| DE102011103840A1 (de) * | 2011-06-01 | 2012-12-06 | Trützschler GmbH & Co Kommanditgesellschaft | Vorrichtung an einer Spinnereivorbereitungsmaschine, z.B. Faserflockenspeiser, Karde, Reiniger o. dgl. zum Zu- und/oder Abfördern von Fasermaterial |
| CN202247068U (zh) * | 2011-07-05 | 2012-05-30 | 彭敏娜 | 一种新型开松机 |
| CN105951221B (zh) * | 2016-07-13 | 2018-07-17 | 卓郎(常州)纺织机械有限公司 | 一种梳棉机分段式弹性给棉板及其制作方法 |
-
2017
- 2017-04-13 CH CH00506/17A patent/CH713691A1/de not_active Application Discontinuation
-
2018
- 2018-03-27 EP EP18717129.3A patent/EP3610060B1/de active Active
- 2018-03-27 WO PCT/IB2018/052082 patent/WO2018189608A1/de not_active Ceased
- 2018-03-27 CN CN201880024232.7A patent/CN110494601B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110494601B (zh) | 2022-06-07 |
| EP3610060B1 (de) | 2022-05-04 |
| WO2018189608A1 (de) | 2018-10-18 |
| CN110494601A (zh) | 2019-11-22 |
| CH713691A1 (de) | 2018-10-15 |
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