CN107460566B - Spinning preparation machine in the form of a drawing frame and method for operating the same - Google Patents
Spinning preparation machine in the form of a drawing frame and method for operating the same Download PDFInfo
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- CN107460566B CN107460566B CN201710378919.8A CN201710378919A CN107460566B CN 107460566 B CN107460566 B CN 107460566B CN 201710378919 A CN201710378919 A CN 201710378919A CN 107460566 B CN107460566 B CN 107460566B
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- drawing frame
- voltage
- frame
- auxiliary drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/76—Depositing materials in cans or receptacles
- B65H54/80—Apparatus in which the depositing device or the receptacle is rotated
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/22—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by rollers only
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/14—Details
- D01H1/20—Driving or stopping arrangements
- D01H1/22—Driving or stopping arrangements for rollers of drafting machines; Roller speed control
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- 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
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/32—Regulating or varying draft
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/32—Regulating or varying draft
- D01H5/38—Regulating or varying draft in response to irregularities in material ; Measuring irregularities
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention relates to a method for operating a spinning preparation machine in the form of a draw frame having a drawing frame with a plurality of roller assemblies arranged one behind the other, the drawing frame being driven by one or more drawing drives in order to homogenize the composite fibers passing through the drawing frame during operation of the drawing frame, the draw frame comprising at least one auxiliary drive for driving one or more further moving components of the draw frame. When the voltage of the voltage source supplying the drawing frame with electric energy falls below a predetermined threshold value, the auxiliary drive is operated as a generator and is braked thereby, wherein the voltage generated by the auxiliary drive during the braking process due to its generating operation can be used to stretch the drive in order to even out the composite fibers supplied to the drawing frame even after the voltage has dropped. Furthermore, a spinning preparation machine is proposed, which has a control unit, by means of which the spinning preparation machine can be operated according to the method according to the invention.
Description
Technical Field
The invention relates to a spinning preparation machine in the form of a draw frame, wherein the draw frame has a drawing frame with a plurality of roller assemblies arranged one behind the other, which drawing frame is operatively connected to and driven by one or more drawing drives in order to homogenize the composite fibers passing through the drawing frame during operation of the drawing frame, and wherein the draw frame comprises at least one auxiliary drive for driving one or more further moving components of the draw frame.
Furthermore, a method for operating a spinning preparation machine in the form of a draw frame is proposed, wherein the draw frame has a drawing frame with a plurality of roller assemblies arranged one behind the other and is driven by one or more drawing drives in order to homogenize the composite fibers passing through the drawing frame during operation of the drawing frame, and wherein the draw frame comprises at least one auxiliary drive for driving one or more further moving components of the draw frame.
Background
Such drawing frames are known from the prior art (see for example DE 102013103177 a 1) and serve to elongate and thus homogenize the composite fibers fed to the drawing frame, which again may comprise several fiber bands. The principle here is that thickness and/or mass fluctuations of the transported fiber web are detected by a detection device (e.g. in the form of a detection disk or in the form of a microwave resonator) upstream of the drawing frame and are compensated by adjusting the rotational speed of individual drawing frame rollers or of all drawing frame rollers of the drawing frame, in which the composite fiber is drawn more or slightly more strongly, i.e. elongated, during the passage through the drawing frame.
In principle, however, a defined drawing of the composite fibers is only possible if a voltage source (for example an official or private electrical network) connected to the drawing frame supplies a sufficiently high voltage to the drawing frame in order to drive the drawing frame at the desired rotational speed.
If the voltage fails or drops, the drawing frame can no longer be operated in a defined manner. In this case, which is unavoidable in the prior art, the draw frame is left uncontrolled. The part of the composite fibre that passes the drafting device during the process must be removed afterwards, thereby resulting in production losses.
Disclosure of Invention
It is therefore an object of the present invention to provide a drawing frame or a method for operating such a drawing frame, which overcomes the above-mentioned disadvantages.
According to the invention, a method for operating a spinning preparation machine in the form of a draw frame is proposed, in which the drawing and homogenization of the composite fibers fed to the draw frame is essentially achieved by the targeted selection or variation of the rotational speed of the drawing frame rollers of one or more of the roller combinations mentioned. The roller assembly here comprises two or more drafting device rollers which correspond to one another and which guide the composite fibre in a clamping manner or transport it through the drafting device.
The operating method is characterized in that an auxiliary drive is provided for driving one or more further moving components of the drawing frame (instead of the drawing frame rollers), wherein the auxiliary drive is operated as a generator and is thereby braked when the voltage of the voltage source supplying the drawing frame with electrical energy falls below a predetermined threshold value. As will also be explained later, the auxiliary drive relates to a drive (preferably a motor) which is not used for driving the roller assembly, but rather for driving one or more further moving members of the draw frame.
The generator of the auxiliary drive is operated to generate a voltage which is used to homogenize the composite fibers fed to the drawing frame after the voltage has dropped. In other words, if the voltage generated by the voltage source for use fails or drops below a defined threshold value, the auxiliary drive itself generates a voltage which is sufficiently high to operate the drawing drive of the drawing frame at the desired rotational speed. Thus, the draw frame may continue to remain in operation.
It is particularly advantageous if the draw frame comprises a storage device for the composite fibers leaving the drawing frame during operation of the drawing frame, wherein the storage device preferably comprises a storage table which is driven by means of an auxiliary drive. As the storage table rotates, the composite fibers passing through and guided through the storage table are placed into storage containers (preferably cans, as are commonly used in textile machinery) arranged below the storage table. Furthermore, the storage device may comprise a pot turret, by means of which the storage containers can be set in rotation or other movement. Advantageously, the can turret is also in operative connection with and driven by the auxiliary drive.
In particular, if a part of the storage container is already filled with composite fibers, the inertia of the storage device is relatively large, so that the auxiliary drive which drives the storage device can be operated for a relatively long time in generator operation before it comes to rest in the event of a voltage failure or drop.
Preferably, the auxiliary drive is operated at the generator for such a long time that it is stationary or until the voltage supplied by the voltage source rises again above a defined minimum voltage. Preferably, the auxiliary drive or alternatively the drawing drive or one of the drawing drives is also used as the drive for the separating device (for example the draw-off roller pair) in the end, with the aid of which the composite fibre leaving the drawing frame is transported clampingly before this drive comes into contact with the mentioned storage table.
It is also advantageous if the drawing frame is designed and operated as a regulated drawing frame. For this purpose, the drawing frame preferably comprises at least one first roller set, a second roller set and a third roller set. The pre-stretching of the composite fibers occurs between the first and second roller combinations, while the main-stretching of the composite fibers occurs between the second and third roller combinations. In order to regulate fluctuations in the mass and/or thickness of the composite fiber, the rotational speed of the rollers of one or all of the drawing frame elements of the individual roller assemblies is accelerated or slowed down over time, so that thick yarn sections or yarn sections having a greater mass of the composite fiber are drawn more strongly through the drawing frame than regions of the composite fiber having a smaller length-dependent mass or thickness. In particular, it is possible to implement the mentioned regulation only in the prestretching field or only in the main stretching field, the remaining stretching fields in this case being operated with constant stretching.
In any case, it is advantageous to obtain at least one measurement variable related to the thickness entering the first roller combination during operation of the drawing frame, wherein the rotational speed of the drawing frame rollers of at least one of the roller combinations mentioned is set on the basis of the measurement variable.
It is also advantageous if the drafting device operates precisely in the described regulation during the braking process of the auxiliary drive, as in the normal operation of the drawing frame, the value of the voltage supplied by the voltage source during normal operation being the setpoint value or above a threshold value from which the auxiliary drive operates as a generator. This ensures that the drawn composite fiber has a homogeneity during the braking process of the auxiliary drive, which corresponds to the homogeneity during the normal operation.
In other words, the drawing frame also runs during the braking process exactly as it did during normal operation. The exception is that the voltage for operating one or more of the traction drives is provided by the auxiliary drive, which operates as a generator at this stage. Of course, the rotational speed level of the individual drafting unit rollers at this stage is significantly lower than during normal operation. In any case, the adjustment of the drawing frame rollers is also carried out during the braking process in such a way that the uniform composite fibers leave the draw frame.
Preferably, the first and second roller assemblies are in operative connection with the first drawing drive and the third roller assembly is in operative connection with the second drawing drive. As a result, preferably all or part of the drawing frame rollers of the first and second roller assemblies are drawn by means of the first drawing drive and all or part of the drawing frame rollers of the third roller assembly are drawn by means of the second drawing drive.
It is also advantageous if the drawing frame comprises a control unit, wherein the voltage generated by the auxiliary drive operating as a generator during braking can be used to operate the control unit. Preferably, during the braking process, all components of the drawing frame, except the auxiliary drive, are supplied with the voltage generated by the auxiliary drive, so that the drawing frame can be operated as in the normal operating state until the auxiliary drive no longer generates sufficient voltage. Alternatively, the drawing frame may of course also have a battery, which preferably provides the required capacity to the control unit when the voltage provided by the voltage source is no longer sufficient for the respective energy supply.
Advantageously, the voltage generated by the auxiliary drive, which operates as a generator, during braking is supplied to one or more further spinning preparation machines and/or one or more spinning machines or, in general, one or more electrical consumers.
The voltage generated by the auxiliary drive can thus be used not only for operating the drawing frame, but also for operating other machines which do not themselves have a drive which can be operated as a generator. For this purpose, the draw frame is connected via corresponding electrical lines to the electrical network of the textile machine itself or directly to one or more further machines. Of course, since the auxiliary drive always supplies so much voltage to the other machines, the drawing frame itself can also be operated as in the normal operating state.
It should generally be mentioned here that the drafting arrangement is operated in the "normal operating" state during the braking process, which does not necessarily mean that the rotational speed of the drafting arrangement rollers must be at the same level as in normal operation. It is also conceivable that all the drawing frame rollers are operated at a reduced rotational speed level during the braking process, wherein the above-described regulation is nevertheless maintained.
This has the additional advantage that the auxiliary drive is used only as a drive when the voltage of the voltage source supplying the drawing frame with electrical energy rises again above a predetermined threshold value, and in this case one or more tensioning drives are supplied with voltage from the voltage source. The rotational speed of the auxiliary drive can in this case be increased again, for example in steps or continuously, to its nominal rotational speed. It is also advantageous if the drawing frame can be switched over again into its normal operation if the drawing driver is also supplied with voltage again from the voltage source in this case.
It is also advantageous if the auxiliary drive is automatically accelerated to the target rotational speed by means of the voltage source when the voltage exceeds a predetermined threshold value after the voltage drop.
Furthermore, it is advantageous if the acceleration only takes place if the rotational speed of the auxiliary drive does not drop to zero or below a defined minimum rotational speed during the braking process mentioned. In this case, it is advantageous if the drawing frame can be placed again in its normal operation only manually. This prevents the drawing frame from suddenly and unexpectedly accelerating again after a long standstill. Thus, personnel risks are avoided.
It is also advantageous if the voltage level supplied to the draw frame is monitored at least during braking, with the difference being whether the voltage comes from an auxiliary drive or a voltage source operating as a generator. Thus, the control section is prevented from starting erroneously due to the voltage supplied by the auxiliary driver, so that the voltage supplied by the voltage source rises again above the mentioned critical value, even if this is not actually the case. Monitoring the voltage of the voltage source and the voltage provided by the auxiliary driver is preferably implemented by two separate voltage meters.
Finally, a spinning preparation machine according to the invention in the form of a draw frame is distinguished in that the draw frame has a device for monitoring the voltage supplied by a voltage source connected to the draw frame, and that the draw frame comprises a control unit which is designed to operate the draw frame in accordance with the description so far and/or in the following. Furthermore, the physical features of the draw frame described thus far or hereafter may be implemented in any combination.
It follows from this that, when the drawing frame has at least a first roller combination, a second roller combination and a third roller combination, wherein between the first roller combination and the second roller combination a pretensioning of the composite fibers fed to it during operation of the drawing frame takes place, and wherein between the second roller combination and the third roller combination a main drawing of the composite fibers takes place, a draw frame is provided in which at least one measured parameter is acquired during operation of the drawing frame, which parameter is related to the thickness entering the first roller combination.
Finally, the rotational speed of the rollers of at least one of the roller combinations mentioned is adjusted on the basis of the measured parameters, wherein reference is made to the above-described adjustment in this respect.
It is also advantageous if, when the device is designed for detecting a voltage, the voltage of the voltage source and the voltage generated by the auxiliary drive during the braking process thereof can be monitored separately. For example, not only the voltage source or the current inlet of the drawing frame connected to the voltage source, but also the auxiliary drive can be assigned a separate voltage meter, wherein the individual voltage meters are to be connected again to the control of the drawing frame.
It is also advantageous if the drawing frame comprises a storage device for the composite fibers leaving the drawing frame during operation thereof, wherein the auxiliary drive is used to drive the storage device and is therefore operatively connected thereto. Preferably, the storage device comprises a storage table and a can turret as already described above, wherein the last mentioned components should be in operative connection with the auxiliary drive.
It is also advantageous if the voltage generated by the auxiliary drive can be transferred particularly simply to the respective voltage-requiring component in this way if the auxiliary drive is connected via at least one electrical intermediate circuit (= electrical means which electrically connects several electrical networks as energy stores at a centrally located current plane or voltage plane via a converter to at least one drawing drive and/or to one or several electrical consumers (for example one or several spinning preparation machines and/or one or several spinning machines) which are not associated with the drawing frame.
Drawings
Further advantages of the invention are illustrated in the examples. In which are schematically shown:
figure 1 shows a side view of selected components of a spinning preparation machine according to the invention.
Detailed Description
Fig. 1 shows a spinning preparation machine in the form of a draw frame 1 for homogenizing composite fibers 7, for example from a preceding fleece machine.
Drawing frame 1 comprises a drawing frame 2 (a plurality of drawing frames may also be present) which comprises at least one first roller assembly 3, a second roller assembly 4 and a third roller assembly 5. Each of the roller assemblies 3, 4, 5 mentioned also comprises at least two co-operating drawing frame rollers 16, at least one of which is driven by means of the drawing drive 6 (in the drawing, for reasons of top view, only one of the plurality of identically shown drawing frame rollers 16 is provided with a reference numeral).
When the first roller combination 3 and the second roller combination 4 form a so-called pretension field, the second roller combination 4 and the third roller combination 5 form a so-called main tension field.
The drawing frame 1 now operates as follows:
the composite fibers 7 introduced into the drawing frame 1 (which may consist of a plurality of fiber bands) are monitored in the region of the drawing inlet by means of sensors with regard to length-dependent thickness or mass fluctuations or with regard to absolute length-dependent thickness or length. For this purpose, for example, the illustrated probe disk 15 can be used. Likewise, of course, the use of microwave resonators (not shown) is also contemplated.
Depending on the length-dependent quality and/or thickness of the composite fibre 7, one or more of the drawing frame rollers 16 are now accelerated or braked, so that thick yarn sections or yarn sections with a higher quality are drawn into the drawing frame 2 more than the remaining sections of the composite fibre 7. The composite fibers 7 thereby become uniform.
After leaving the drafting mechanism 2, the composite fibres 7 are passed by means of a storage device 9 to a storage, which is usually formed by a tank 10. The storage device 9 preferably comprises a can turret 18 and a storage table 17, wherein the two last-mentioned components can be set in a rotary motion by means of the auxiliary drive 8 in order to store the composite fibers in the cans 10 in a loop-like manner. The composite fibre 7 can be guided in particular between the drawing frame 2 and the storage table 17 by means of a draw-off roller pair 19, which is preferably driven by means of one of the two drawing drives 6 (wherein the draw-off roller pair 19 is not necessary).
Furthermore, the drawing shows that the tensile drive 6 and the auxiliary drive 8 (both preferably realized by an electric motor) are connected via electrical lines 20 to a current interface 14, which in turn is connected to a voltage source 12.
In addition, the drawing frame 1 has a control unit 11, by means of which in particular the rotational speeds of the drawing drive 6 and the auxiliary drive 8 are controlled.
Finally, drawing frame 1 has one or more devices 13 for monitoring the voltage supplied by a voltage source 12 connected to drawing frame 1.
If it is now determined that the control 11, the mentioned voltage is below the previously defined critical value or falls completely to zero, the auxiliary driver 8 according to the invention now serves as a voltage source 12.
For this purpose, the auxiliary motor is used as a generator during the braking process. The voltage thus generated (which in the example shown is likewise monitored by the above-mentioned device 13, with the device 13 also monitoring the voltage supplied by the voltage source 12) is finally available for supplying the drawing drive 6 and the control unit 11 with the electrical energy required by it, so that the drawing frame 1, in particular the drawing frame 2 thereof, can be driven further and, in the event of a voltage drop of the voltage source 12 occurring many times (or in the event of a longer low voltage), the driving of the drawing frame, in particular the drawing frame thereof, is brought to a controlled standstill. The composite fibre 7 becomes exactly homogeneous during this phase, as during normal operation, during which the voltage of the voltage source 12 is at the theoretical value.
Of course, the transport speed of the drawing frame 2 is reduced more during the braking process of the auxiliary drive 8 than during normal operation, since the drawing frame rollers 16 should also be gradually slowed down to zero during the braking process. However, the general mode of operation of the drawing frame 2, i.e. the uniform action on the composite fibers 7, should remain the same during the mentioned operation of the drawing frame 1.
The invention is not limited to the embodiments shown and described. Variations within the scope of the claims, as well as any combination of the features described, are equally possible, even if they are shown or described in different parts of the description or the claims, or in different embodiments.
List of reference marks
1 drawing frame
2 drafting mechanism
3 first roller combination
4 second roller combination
5 third roller combination
6 stretching driver
7 composite fiber
8 auxiliary drive
9 storage device
10 jar
11 control part
12 voltage source
Device for monitoring the voltage supplied by a voltage source connected to the drawing frame 13
14 Current interface
15 detection disc
16 drafting mechanism roller
17 storage table
18 jar revolving stage
19 draw-off roller pair
20 electric lead
Claims (15)
1. A method for operating a spinning preparation machine in the form of a drawing frame (1),
-wherein the draw frame (1) has a drawing frame (2) with a plurality of roller assemblies arranged one behind the other, which drawing frame is driven by one or more drawing drives (6) in order to homogenize the composite fibers (7) passing through the drawing frame (2) during the operation of the drawing frame, and
-wherein the draw frame (1) comprises at least one auxiliary drive (8) for driving one or more further moving members of the draw frame (1),
it is characterized in that the preparation method is characterized in that,
when the voltage of a voltage source (12) supplying the drawing frame (1) with electric energy falls below a predetermined threshold value, the auxiliary drive (8) is operated as a generator and is braked thereby, wherein the voltage generated by the auxiliary drive (8) during the braking process as a result of its generating operation is used to stretch the drive (6) in order to homogenize the composite fibers (7) which are also fed to the drawing unit (2) after the voltage has dropped.
2. Operating method according to claim 1, characterized in that the draw frame (1) comprises a storage device (9) for the composite fibers (7) leaving the drafting mechanism (2) during operation of the drafting mechanism, wherein the storage device (9) is driven by an auxiliary drive (8) for storing the composite fibers (7) leaving the drafting mechanism (2) in a receptacle.
3. Operating method according to claim 2, wherein the storage device (9) is driven by an auxiliary drive (8) to store the composite fibres (7) leaving the drawing frame (2) in a tank (10).
4. Operating method according to one of the preceding claims, characterized in that the drawing frame (2) comprises at least one first roller group (3), a second roller group (4) and a third roller group (5), wherein a pretensioning of the composite fiber (7) fed to it during operation of the drawing frame (2) takes place between the first roller group (3) and the second roller group (4), wherein a main drawing of the composite fiber (7) takes place between the second roller group (4) and the third roller group (5), wherein at least one measurement parameter relating to the thickness of the composite fiber (7) entering the first roller group (3) is acquired during operation of the draw frame (1), wherein the rotational speed of the drawing frame rollers (16) of at least one mentioned roller group is adjusted on the basis of the measurement parameter, and wherein the intensity of the regulation is maintained at least for a certain time after the voltage drop.
5. Operating method according to one of claims 1 or 2, characterized in that the draw frame (1) comprises a control (11), wherein the voltage generated by the auxiliary drive (8) operating as a generator during braking is used for operating the control (11).
6. Method of operation according to any of claims 1 or 2, characterized in that the voltage generated by the auxiliary drive (8) operating as a generator during braking is supplied to one or more further spinning preparation machines and/or one or more spinning machines.
7. Operating method according to one of claims 1 or 2, characterized in that the auxiliary drive (8) is used only as a drive when the voltage of a voltage source (12) which supplies the drawing frame (1) with electrical energy rises again above a predetermined threshold value, and in this case one or more tensile drives (6) are supplied with voltage by means of the voltage source (12).
8. Operating method according to one of claims 1 or 2, characterized in that the auxiliary drive (8) is automatically accelerated to the nominal rotational speed by means of the voltage source (12) when the voltage exceeds a predetermined threshold value after the voltage drop, wherein the acceleration only takes place if the rotational speed of the auxiliary drive (8) does not drop below a defined minimum rotational speed during the braking process mentioned.
9. Operating method according to one of claims 1 or 2, characterized in that the auxiliary drive (8) is automatically accelerated to the nominal rotational speed by means of the voltage source (12) when the voltage exceeds a predetermined threshold value after the voltage drop, wherein the acceleration only takes place if the rotational speed of the auxiliary drive (8) does not drop to zero during the braking process mentioned.
10. Operating method according to one of claims 1 or 2, characterized in that the voltage supplied to the draw frame (1) is monitored at least during the braking process, the monitoring of the voltage source and the voltage supplied by the auxiliary drive being effected by two separate voltage meters.
11. A spinning preparation machine in the form of a drawing frame (1),
-wherein the drawing frame (1) has a drawing frame (2) with a plurality of roller assemblies arranged one behind the other, which drawing frame is in operative connection with and driven by one or more drawing drives (6) in order to homogenize the composite fibers (7) passing through the drawing frame (2) during operation of the drawing frame, and
-wherein the draw frame (1) comprises at least one auxiliary drive (8) for driving one or more further moving members of the draw frame (1),
it is characterized in that the preparation method is characterized in that,
the drawing frame (1) has a device (13) for monitoring a voltage supplied by a voltage source (12) connected to the drawing frame (1), and the drawing frame (1) comprises a control unit (11) which is designed to operate the drawing frame (1) according to the operating method of one of the preceding claims.
12. Spinning preparation machine according to the preceding claim 11, characterized in that the drafting mechanism (2) has at least one first roller group (3), a second roller group (4) and a third roller group (5), wherein a pretensioning of the composite fibers (7) fed to the first roller assembly (3) and the second roller assembly (4) during operation of the drawing frame (2) takes place between them, wherein a main drawing of the composite fibres (7) takes place between the second roller set (4) and the third roller set (5), wherein at least one measurement parameter relating to the thickness of the composite fibres (7) entering the first roll set (3) is acquired during operation of the draw frame (1), wherein the rotational speed of the drafting mechanism rollers (16) of at least one of the mentioned roller combinations is adjusted on the basis of the measured parameter.
13. Spinning preparation machine according to any of claims 11 or 12, characterized in that the device (13) is configured for detecting the voltage, monitoring the voltage of the voltage source (12) and the voltage generated by the auxiliary drive (8) during its braking process separately.
14. Spinning preparation machine according to one of claims 11 or 12, characterized in that the draw frame (1) comprises a storage device (9) of the composite fibres (7) which during its operation leaves the drafting mechanism (2), wherein the auxiliary drive (8) is used for driving the storage device (9) and is for this purpose in operative connection therewith.
15. Spinning preparation machine according to one of the claims 11 or 12, characterized in that the auxiliary drive (8) is in connection with at least one drawing drive (6) and/or one or several other spinning preparation machines and/or one or several spinning machines via at least one electrical intermediate circuit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016110304.7A DE102016110304A1 (en) | 2016-06-03 | 2016-06-03 | Spinning preparation machine in the form of a route and method for operating the same |
| DE102016110304.7 | 2016-06-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107460566A CN107460566A (en) | 2017-12-12 |
| CN107460566B true CN107460566B (en) | 2021-07-06 |
Family
ID=59021299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710378919.8A Active CN107460566B (en) | 2016-06-03 | 2017-05-25 | Spinning preparation machine in the form of a drawing frame and method for operating the same |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3266911B1 (en) |
| CN (1) | CN107460566B (en) |
| BR (1) | BR102017011441B1 (en) |
| DE (1) | DE102016110304A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018117752A1 (en) * | 2018-07-23 | 2020-01-23 | Maschinenfabrik Rieter Ag | Take-off device and spinning preparation machine |
| CN109160433B (en) * | 2018-10-19 | 2021-03-23 | 重庆前卫科技集团有限公司 | Constant tension winch and cable winding and unwinding device |
| CN109537113A (en) * | 2018-11-30 | 2019-03-29 | 湖北德永盛纺织有限公司 | A kind of drawing frame send strip device |
| DE102020120991A1 (en) * | 2020-08-10 | 2022-02-10 | Saurer Spinning Solutions Gmbh & Co. Kg | textile machine |
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| CN101956256B (en) * | 2009-07-11 | 2014-04-23 | 索若德国两合股份有限公司 | Workstation of open ended rotor spinning machine and method for operating workstation |
| DE102013103177A1 (en) * | 2013-03-28 | 2014-10-02 | Rieter Ingolstadt Gmbh | Drive arrangement of a spinning preparation machine |
| WO2015170155A1 (en) * | 2014-05-08 | 2015-11-12 | Maschinenfabrik Rieter Ag | Textile machine for producing roving and method for starting the roving production on a corresponding textile machine |
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| DE3347113C2 (en) * | 1983-12-27 | 1986-04-10 | SKF GmbH, 8720 Schweinfurt | Spinning or twisting machine with single drive |
| US5943740A (en) * | 1996-04-02 | 1999-08-31 | Rieter Machine Works, Ltd. | Combing machine with an autoleveller drafting arrangement |
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2016
- 2016-06-03 DE DE102016110304.7A patent/DE102016110304A1/en not_active Withdrawn
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- 2017-05-25 CN CN201710378919.8A patent/CN107460566B/en active Active
- 2017-05-30 BR BR102017011441-4A patent/BR102017011441B1/en active IP Right Grant
- 2017-06-01 EP EP17173869.3A patent/EP3266911B1/en active Active
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| EP0451534A1 (en) * | 1990-04-10 | 1991-10-16 | Maschinenfabrik Rieter Ag | Textile machine, in particular ring spinning machine |
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| EP1207225A2 (en) * | 2000-11-16 | 2002-05-22 | Murata Kikai Kabushiki Kaisha | Spinning device |
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| CN101956256B (en) * | 2009-07-11 | 2014-04-23 | 索若德国两合股份有限公司 | Workstation of open ended rotor spinning machine and method for operating workstation |
| CN102741463A (en) * | 2010-02-12 | 2012-10-17 | 里特机械公司 | Drawing frame for a spinning machine |
| DE102013103177A1 (en) * | 2013-03-28 | 2014-10-02 | Rieter Ingolstadt Gmbh | Drive arrangement of a spinning preparation machine |
| WO2015170155A1 (en) * | 2014-05-08 | 2015-11-12 | Maschinenfabrik Rieter Ag | Textile machine for producing roving and method for starting the roving production on a corresponding textile machine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102016110304A1 (en) | 2017-12-07 |
| EP3266911B1 (en) | 2020-03-11 |
| EP3266911A1 (en) | 2018-01-10 |
| CN107460566A (en) | 2017-12-12 |
| BR102017011441A2 (en) | 2017-12-19 |
| BR102017011441B1 (en) | 2022-08-30 |
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