EP2576877A1 - Überwachungsvorrichtung an einer textilmaschine. - Google Patents
Überwachungsvorrichtung an einer textilmaschine.Info
- Publication number
- EP2576877A1 EP2576877A1 EP11722716.5A EP11722716A EP2576877A1 EP 2576877 A1 EP2576877 A1 EP 2576877A1 EP 11722716 A EP11722716 A EP 11722716A EP 2576877 A1 EP2576877 A1 EP 2576877A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air pressure
- jobs
- textile machine
- control unit
- combing
- 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
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
Definitions
- the invention relates to a device or a method for checking a, applied to a fiber material processing workstation air pressure of a textile machine by means of at least one air pressure generator, wherein the
- Textile machine is provided with a variety of jobs and the jobs are connected via lines with an air pressure source.
- Spinning machines comfort spinning machines or combers act. These are those textile machines which have a multiplicity of workstations working parallel to one another, which work either autonomously and independently of one another or work in dependence on one another in order to form a common end product.
- a combing machine is one of the latter textile machines, wherein the sliver produced at the individual work stations (combing head) is fed with the slivers of adjacent workstations to a common drafting system for further processing.
- the drafting system which follows the combing heads, also forms a job for processing the fiber material.
- At least partial areas (elements) of the respective workstation are connected during operation to an air pressure source via which, depending on the application, an overpressure or underpressure is generated.
- an air pressure source via which, depending on the application, an overpressure or underpressure is generated.
- the applied air pressure is maintained as constant as possible.
- z. B. by contamination and deposits in the field of work, z.
- With the monitoring of the air pressure can also other sources of error at the respective job be detected in time and eliminated in order to maintain the function of the workplace. If necessary, the individual workstation or even the entire textile machine must be shut down if the measured air pressure deviates from a predetermined tolerance value over a certain period of time.
- Suction roller is checked at intervals by a mobile maintenance device.
- the maintenance device is provided with an air pressure generator (vacuum generator), which can be coupled via a line and coupling with the negative pressure region of the respective suction roller of a job.
- an air pressure generator vacuum generator
- Negative pressure based on the values determined by the air pressure generator is the
- Maintenance device provided with an adjusting device, via which a control valve can be adjusted on the machine to achieve the desired setpoint.
- the adjustment is triggered by an evaluation circuit, which the signals of the air pressure transducer are transmitted.
- the check of the negative pressure (air pressure) at the individual workstations by the movable maintenance device is very time-consuming and expensive. The check is hereby discontinuous and at long intervals, whereby possibly necessary interventions take place too late.
- DE-3342 481 A1 discloses a device, each suction insert a workstation (spinning station) with an air pressure generator
- the individual air pressure generator can be connected to a central evaluation circuit, via which the interruption of the spinning operation can be triggered at the individual workstations or means are controlled for adjusting the negative pressure at the individual work stations.
- a continuous monitoring of the individual jobs is possible, but with a relatively high
- the invention is based on a simple and inexpensive task
- Monitoring device of the applied air pressure to propose at several adjacent workstations a textile machine, which eliminates the disadvantages of known solutions.
- air pressure includes a negative pressure or an overpressure of the air.
- workstations working side by side is not limited to a spatial arrangement, but essentially refers to a simultaneous working of the workplaces.
- Air pressure generator is connected to a group of several jobs of the textile machine via at least one further line, wherein in the line for each
- the term "further line” is understood to mean a tubular and continuous line for air, via which, for example, a negative pressure area of the respective workstation can be connected to the air pressure generator When the locking means are closed, they are not connected to the source of air pressure, which is connected to the respective workstation via special lines.
- the "blocking means” can be a controllable valve, via which the connection between the underpressure or overpressure region at the respective workstation and the air pressure generator can be opened or closed.
- Blocking means can be controlled the individual jobs and connected in succession with the air pressure generator.
- the connection line can be made narrow.
- Air pressure transmitter necessary and there are no tolerance problems between multiple air pressure sensors, as has been described previously in known solutions.
- work place usually refers to a work unit with several work elements for processing a fiber material, whereby only individual work areas of this work unit can be connected to an air pressure source
- the textile machine is provided with a plurality of workstations for producing a fiber amount (eg thread, yarn, sliver, sliver), wherein at least the largest part (number) of the workstations can correspond to one another in terms of their construction and their mode of operation.
- a fiber amount eg thread, yarn, sliver, sliver
- the blocking means and the air pressure generator are connected to a control unit of the textile machine.
- control unit is provided with a program via which the blocking means are opened and closed in predetermined time periods. This allows a time-exact query of the negative pressure at the individual jobs. It can also be used to determine specific polling intervals.
- control unit is connected to a display for displaying the values measured by the air pressure sensors at the individual work stations.
- the operator can be detected in good time a drifting of individual jobs from predetermined setpoints and appropriate action can be taken.
- control unit with a
- the textile machine can z. B. be a combing machine, wherein jobs by a plurality of several side by side combing units (also
- Called combing heads are formed, from which the sliver formed there is fed to a common subsequent drafting unit.
- the drafting unit can also be integrated as a "workstation" with the monitoring device claimed in the invention.
- the combing units may be provided with a combing device, which is followed by a nonwoven fabric forming device, which is connected to a vacuum source.
- the nonwoven fabric forming device may e.g. B. may be formed from a rotating screen drum on which a negative pressure is applied in the interior and the soldering of the withdrawn and combed out fiber packets takes place on the circumference of the screen drum.
- the object is further achieved by a method, wherein it is proposed that the detection of the air pressure of individual workstations of a group of several workstations takes place via a common air pressure transmitter assigned to this group, wherein the detection is time-controlled and takes place sequentially.
- 1 shows a schematic view of several working side by side
- FIG. 1 shows another embodiment according to Fig.1
- FIG. 3 shows a schematic side view of a workstation of a combing machine
- FIG. 4 shows a schematic plan view of a combing machine with several workstations in the form of combing heads according to FIG. 3 with a monitoring device claimed according to the invention.
- Workstations A1 to A5 of a fiber material processing textile machine 1 The number of five jobs shown is only an example. In practice, in a textile machine usually a far larger number of such jobs
- an open-end machine rotor spinning machine
- Friction spinning machine an air-jet spinning machine, a comfort spinning machine or to act a comber. With these machines it is for
- the work stations A1 to A5 shown in FIG. 1 are connected via a line 2 to a central control unit ST and are controlled by the latter. Likewise connected to the jobs A1 to A5 via a
- Drive connections may consist of one (as shown) or more over the
- Shaft 14 extending longitudinally on the machine 1 (only one shown), which is connected via further drive elements, not shown (eg belts,
- Workstations A1 to A5. Here are in branches of the line 7, which lead to the individual jobs lead valves V1 to V5, via which the connection between the respective workstation A1 to A5 and the vacuum generator UG can be controlled.
- the valves V1 to V5 are connected via a line 9 to the control unit ST.
- the vacuum generator UG is connected via the line 10 to the control unit ST and outputs a signal value of the measured negative pressure measured at the corresponding workstation was, to the control unit ST for evaluation.
- the detection and assignment of the measured value to a specific workstation and the control of a specific valve of a workstation is controlled by the control unit ST.
- a program stored in the control unit ST performs a comparison of the measured value with a predetermined desired value.
- the diagram according to FIG. 5 is intended to serve. Measured negative pressure values w1 to w10 are shown in "bar" over a time axis T.
- the value Po forms an upper limit value and the value Pt a tolerance value
- Control unit ST controlled and triggered by a program stored in the control unit. This ensures that only one of the jobs A1 to A5 (or certain areas of these) with the vacuum generator UG on the
- Line 7 is connected. In order to establish this connection, only one of the valves V1 to V5 is always opened one after the other by a control signal of the control unit ST via the line 9. The value detected via the vacuum generator UG can then be assigned exactly to the relevant workstation A1 to A5 and evaluated in the control unit ST.
- ⁇ measures can be triggered by the controller.
- One of these measures can z.
- a signal lamp L can be controlled, via which the operator an optical signal of the error message is transmitted, so that this corresponding Measures for the return of the job in the specified
- Workstation A4 has been eliminated by the operator or by a service facility, the workstation A4 can again be put into operation manually or automatically by closing the clutch Z4. If the individual workstations A1 to A5 are provided with individual drives (not shown), these are shut down during the measurement of a fault via the control unit ST and after
- Textile machine 1 is equipped with a larger number of jobs A1 to A10. All jobs A1 to A10 are also connected to a vacuum source P via line 4 here. However, in order to avoid measurement losses due to the existing long lines over the greater length of the textile machine 1, two groups of jobs A1 to A10 were formed for the monitoring device.
- the first group Ga includes the monitoring of the workstations A1 to A5 and the second group Gb includes the monitoring of the workstations A6 to A10. As indicated schematically, the first group Ga is connected via the drive shaft 14a and the second group Gb via the drive shaft 14b to a drive AT.
- the couplings between the drive shafts 14a, 14b not shown at the individual jobs, but correspond to the embodiment shown in Figure 1.
- the first group Ga of the jobs A1 to A5 is connected via a controllable valve V1 to V5 via the line 7a with a vacuum generator UG1, while the second group Gb via controllable valves V6 to V10 and the line 7b with a further vacuum generator UG2 in Can be connected.
- Via the lines 10a, 10b or the vacuum generator UG1 and UG2 are connected to the control unit ST.
- the actuation (corresponding to FIG.
- valves V1 to V5 of the first group Ga of the workstations A1 to A5 takes place from the control unit ST via the line 9a, while the actuation of the valves V6 to V10 of the second group Gb of the workstations A1 to A5 takes place via the line 9b.
- the control unit ST is as in the example of Figure 1 for indicating a fault with a screen AZ, or connected to a signal lamp L.
- the evaluation and polling of the pressure values at the individual workstations A1 to A10 takes place in accordance with the example of FIG.
- the query intervals of the first and second group Ga, Gb can be carried out independently of one another, since there is a separate vacuum generator UG1 or UG2 for each of the groups.
- Vacuum generator for a whole group of workstations working side by side of a textile machine limits the necessary number of vacuum generators to a minimum and display tolerances between the individual jobs avoided.
- the attachment of the switchable valves per job to make the connection with the vacuum generator is much cheaper than if each job is assigned its own vacuum generator according to the known and cited prior art.
- the transmission and evaluation of the determined values per workstation is proposed by the invention
- FIGS. 3 and 4 An embodiment of the monitoring device on a combing machine is shown in FIGS. 3 and 4.
- the combing machine K may be, for example, an execution of a machine, as z. In the published
- WO 2006/012758 A1 has been shown.
- the fleece formation takes place after the tearing off by the tear-off cylinder by soldering the torn off
- Fiber packets on the circumference of a subsequent screen drum T1 which is also schematically shown in the example of Figure 3. To carry out the soldering process and the corresponding alignment of the broken fiber package is within the
- Screening drum T1 applied a negative pressure via a vacuum source P, which is connected via a line 4 to the interior of the screen drum T1.
- a vacuum source P which is connected via a line 4 to the interior of the screen drum T1.
- the negative pressure applied inside the screen drum T1 also determines the air pressure and the air circulation within a casing, or a housing 20, within which the screen drum T1 is mounted.
- FIGS. 1 and 2 explained.
- the individual jobs consist of side by side working combing heads K1 to K10, the z. B. driven by a drive AT, which is shown schematically
- Drive means 24 (eg shafts) is in driving connection with the combing heads.
- a clutch Z1 (FIG. 3) can be provided for the drive interruption (per combing head), which is connected via the line 2 to the control unit ST.
- a Kämmkopf K1 has z. B. a driven via a forceps ZW shaft
- the circular comb RK is likewise driven by the drive AT and is rotatably mounted in the machine frame via a shaft RW
- the combed end of the lap, which protrudes when the clamp ZA is closed, is provided by the circular ridge RK combed and then for the tearing to the following
- Draw unit 30 supplied.
- the drafting unit 30 is also included in the monitoring system of the vacuum as a "workstation.”
- the fiber sliver formed on this drafting unit 30 is deposited in a subsequent sliver 32 in a can 33.
- the individual combing heads K1 to K10 are inserted therein
- Draw unit 30 connected to the vacuum source P. Via the conduit 7 and the valves V1 to V10 associated with the combing heads, the respective interior spaces 19 of the housing 20 of the combing heads can be connected to the vacuum generator UG. Also, the region of the drafting unit 30, to which a negative pressure is applied, via the line 7 via the valve VS with the
- Vacuum generator UG are connected. This connection is controlled by the control unit ST, which is connected via the line 9 to the valves V1 to V10 and VS.
- Drafting unit is carried out as already described in the embodiment of Figure 1. As soon as one of the measured values is in an area outside of the moved predetermined tolerance, the corresponding combing head is stopped and generates a warning signal. Should the determined pressure value in the drafting unit 30 move outside a predetermined tolerance, this can trigger the parking of the entire combing machine.
- this z. B. be switched on again by manual control via the control unit ST.
- the clutch Z1 is closed again via the control unit ST and the connection to the drive AT is restored.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH00845/10A CH703192A1 (de) | 2010-05-28 | 2010-05-28 | Überwachungsvorrichtung an einer Textilmaschine. |
| PCT/CH2011/000117 WO2011147040A1 (de) | 2010-05-28 | 2011-05-20 | Überwachungsvorrichtung an einer textilmaschine. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2576877A1 true EP2576877A1 (de) | 2013-04-10 |
| EP2576877B1 EP2576877B1 (de) | 2014-09-10 |
Family
ID=44115800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11722716.5A Not-in-force EP2576877B1 (de) | 2010-05-28 | 2011-05-20 | Überwachungsvorrichtung an einer textilmaschine. |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2576877B1 (de) |
| CN (1) | CN102906322B (de) |
| CH (1) | CH703192A1 (de) |
| WO (1) | WO2011147040A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017113089A1 (de) * | 2017-06-14 | 2018-12-20 | Trützschler GmbH & Co Kommanditgesellschaft | Kämmmaschine |
| LU504416B1 (de) * | 2023-06-06 | 2024-12-06 | Saurer Spinning Solutions Gmbh & Co Kg | Verfahren zur Ermittlung von Leckagen und/oder Verstopfungen einer Spinneinheit einer Spinnvorrichtung einer Rotor- oder Luftspinnmaschine |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3342481A1 (de) | 1983-11-24 | 1985-06-05 | Fritz 7347 Bad Überkingen Stahlecker | Oe-friktionsspinnmaschine |
| DE4327693A1 (de) * | 1993-08-18 | 1995-02-23 | Hoechst Ag | Verfahren zum Überwachen des Gasdurchsatzes durch Injektordüsen, Injektordüse zur Durchführung dieses Verfahrens, sowie deren Verwendung |
| DE19534114A1 (de) * | 1995-09-14 | 1997-03-20 | Schlafhorst & Co W | Verfahren und Vorrichtung zum Überprüfen von pneumatischen Spleißvorrichtungen |
| DE10022428A1 (de) | 2000-05-09 | 2001-11-15 | Stahlecker Fritz | Spinnmaschine mit einer Vielzahl von Spinnstellen |
| DE10254267A1 (de) * | 2002-11-21 | 2004-06-03 | Saurer Gmbh & Co. Kg | Verfahren und Vorrichtung zum Überprüfen der Funktionsfähigkeit pneumatisch arbeitender Fadenspleißvorrichtungen |
| DE502005000595D1 (de) * | 2004-04-13 | 2007-05-31 | Rieter Ag Maschf | Antrieb für eine Kämmmaschine |
| JP4814233B2 (ja) * | 2004-08-05 | 2011-11-16 | マシーネンファブリク リーター アクチェンゲゼルシャフト | コーミング機械 |
| JP3925533B2 (ja) * | 2004-11-05 | 2007-06-06 | 村田機械株式会社 | 紡績装置、及び繊維蓄積状態の検出方法 |
| JP2009242972A (ja) * | 2008-03-31 | 2009-10-22 | Murata Mach Ltd | 紡績装置 |
| EP2108720B1 (de) * | 2008-04-11 | 2011-06-15 | Maschinenfabrik Rieter Ag | Vorrichtung zur Bildung eines gekämmten Faservlieses |
-
2010
- 2010-05-28 CH CH00845/10A patent/CH703192A1/de not_active Application Discontinuation
-
2011
- 2011-05-20 EP EP11722716.5A patent/EP2576877B1/de not_active Not-in-force
- 2011-05-20 CN CN201180026240.3A patent/CN102906322B/zh not_active Expired - Fee Related
- 2011-05-20 WO PCT/CH2011/000117 patent/WO2011147040A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011147040A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CH703192A1 (de) | 2011-11-30 |
| CN102906322A (zh) | 2013-01-30 |
| WO2011147040A1 (de) | 2011-12-01 |
| CN102906322B (zh) | 2015-06-17 |
| EP2576877B1 (de) | 2014-09-10 |
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