CN112011867B

CN112011867B - Driving unit for controlling spindle rotating speed of false twisting spindle unit of texturing machine by yarn tension

Info

Publication number: CN112011867B
Application number: CN201911151910.9A
Authority: CN
Inventors: 德特勒夫·格根斯
Original assignee: De TelefuGegensi
Current assignee: De TelefuGegensi
Priority date: 2019-05-29
Filing date: 2019-11-22
Publication date: 2023-10-24
Anticipated expiration: 2039-11-22
Also published as: CN112011867A; DE102019004302A1

Abstract

The invention relates to a driving unit of a friction false twisting unit in a texturing machine. According to the invention, in the case of all 240 sets in a standard texturing machine (all 480 sets or more sets in a plurality of special texturing machines), each set is driven by an own DC motor, and the rotational speed of each individual motor of these motors is calculated via a transformer, a PCB, from yarn tension measurements and readjusted rapidly in order to warp very high quality synthetic yarn.

Description

Driving unit for controlling spindle rotating speed of false twisting spindle unit of texturing machine by yarn tension

Technical Field

The present invention relates to a drive unit for a friction false twisting unit (hereinafter "unit") in a texturing machine, wherein each individual unit is driven by a single DC motor (direct current/direct current motor), for example via a toothed belt, and is controlled by a central console in the machine.

Background

Units for texturing synthetic threads are known, for example, from DE102005023928A1, DE102008033646.7, DE 102009033312.6.

In such a machine set, a so-called false twist is applied to the synthetic yarn by means of the disk-shaped friction elements of the machine set. The aim is to increase the total volume and/or the elastic elongation of the original smooth yarn and to keep the twist in the yarn as uniform as possible. To achieve this, a yarn tension measuring device is fitted after the assembly, which ensures: the drive of the friction unit is switched off when the yarn breaks. In order to optimize the quality of textured yarn, attempts have been made in the past to influence the uniformity of the yarn twisted in the machine set before and after the machine set by means of additional devices via yarn tension measurement and also to make the rotational speed of all 240 motors more uniform in one standard texturing machine, which however does not actually lead to the desired result.

Disclosure of Invention

The invention is based on german patent DE102010034460.5 and chinese patent ZL201010510284.0, in which each individual DC (direct current) drive motor is connected to a PCB (electronic control circuit board with controller, amplifier, etc.) via electrical cables and sensor cables, which DC drive motor drives an individual unit independently of the central console in the texturing machine. The PCB is in turn connected via an input cable and an output cable to a transformer (which has an input voltage of up to 220V, for example). The transformer converts 220V fed via the mains power supply to 24V, 48V (or other voltage) as required and directs the new voltage and control instructions onto the PCB, which in turn transmits all required data via the electrical and sensor cables to the DC drive motor.

The drive unit according to the invention comprises a DC motor which drives the false twisting spindle unit, for example, with a toothed belt, and deforms the synthetic yarn which touches the detector bar of the yarn tension measuring device, wherein a PCB is connected via wires and sensor wires to the DC motor and via other wires to a transformer which is supplied with electrical energy, for example 220V, via a U-V-W electrical wire, which converts this voltage, for example, to 48V and which is transferred via the PCB, to the DC motor, in order to drive the false twisting spindle unit with this electrical energy, which DC motor can be controlled by the PCB with the sensor wire and thus deforms the synthetic yarn, characterized in that the yarn tension measuring device is now also connected via wires and sensor wires to the PCB and thus also to the DC motor, this results in that each change in the yarn tension is led into the PCB and these values can be converted in order to change the DC motor speed additionally or subtractively, so that the DC motor speed=spindle speed can be adjusted rapidly for the first time in accordance with the yarn tension of the deformed yarn and thus the highest yarn quality can be produced continuously, and the spindle speed of the false twist spindle unit in the texturing machine is controlled by the yarn tension, the yarn tension measuring device being connected to the PCB with a sensor wire, so that the changed values calculated on the basis of the yarn tension change only result in a change in the speed of the DC motor and the false twist spindle unit if the yarn tension change lasts longer than 1 second, that is to say so-called fuzzy logic is integrated in the PCB.

By means of a computer connected to each individual PCB via a control cable, each individual motor can be reached from a central console on the machine or elsewhere in the deformation shop and the data of the motor can be seen and changed if necessary. In this way, statistics can then be set and recalled for each individual deformation site, for example.

The drive system now also ultimately makes it possible to connect the yarn tension measuring device to the circuit in such a way that the set motor speed and thus the spindle speed of the assembly can be controlled via the yarn tension of the yarn tension measuring device and can be correlated with the yarn tension of the yarn tension measuring device in order to thus achieve absolute uniformity of the twisted, deformed synthetic yarn.

In order that short term too high or too low yarn tension changes, such as knots in the yarn, do not lead to misinterpretations and rotational speed changes, the system is provided with fuzzy logic which ignores short term too high or too low yarn tension changes.

In a preferred embodiment, the spindle speed of the false twist spindle assembly in the texturing machine is controlled by the yarn tension, and the drive motor is a DC motor, since a very small speed change of >0.1% can be achieved rapidly with only one DC motor and a single assigned PCB.

In a further preferred embodiment, the spindle speed of the false twist spindle unit in the texturing machine is controlled by the yarn tension, and on a central console in the texturing machine a computer is connected to all PCBs of the machine, which computer makes all important data (e.g. yarn tension, speed, etc.) visible, controllable and changeable at the computer and at each texturing position.

In a further preferred embodiment, the spindle speed of the false twist spindle assembly in the texturing machine is controlled by the yarn tension, characterized in that the computer can also be located anywhere in the central control space in the texturing machine and from there can call, change or control data for, for example, a very large number of texturing machines, with the result that statistical data on the availability of the texturing sites on each texturing machine can also be achieved.

In a further preferred embodiment, the spindle speed of the false twist spindle unit in the texturing machine is controlled by the yarn tension, and the drive units of 12, 24 or any other number are fitted together with the yarn tension measuring device in a post-processed aluminum profile or in a plurality of other profiles.

In a further preferred embodiment, the spindle speed of the false twist spindle unit in the texturing machine is controlled by the yarn tension, and the 12, 24 or any other number of the drive units are fitted in a so-called spindle beam made of mineral casting or of a mixture of mineral casting and other materials (profiles).

In a further preferred embodiment, the spindle speed of the false twist spindle unit in the texturing machine is controlled by the yarn tension, and the drive unit can be used for retrofitting in the texturing machine. In order to adapt the texturing machine of the false twisting spindle assembly, which has been driven by an AC motor, a so-called spindle beam, a receiving surface for a DC motor, a drive pinion for a DC motor and the yarn tension measuring device are already available and can be used for the yarn tension-controlled spindle rotational speed of the false twisting spindle assembly, it is only necessary to mount the DC motor, the PCB and the transformer in the respective channels and to connect the yarn tension measuring device to the PCBs.

Drawings

Fig. 1 shows an embodiment of a DC motor driving a unit controlled by a PCB. The PCB is connected via wires to a transformer having an input voltage of, for example, 220V. The PCB together with its electronic components is also connected with the yarn tension meter and the DC motor via wires and sensor cables, and furthermore there is an input cable or output cable for connection with a computer via which electrical and electronic instructions can be transmitted to the PCB, for example in order to adjust or change the rotational speed of the motor.

Detailed Description

Fig. 1 shows a DC motor (direct current motor/direct current motor) 1, which drives a set 3, for example, with a toothed belt 2. The synthetic yarn 4 is guided through the assembly 3, which touches the detector rod 5 of the yarn tension measuring device 7. The PCB 6 is connected to the DC motor 1 via the wire 8 and the sensor cable 9 and to the yarn tension meter 7 via the wire 10 and the sensor cables 11, 12 and to the transformer 20 via the wires 15, 16, 17, 18. The transformer 20 is supplied with electrical energy via a U-V-W electrical cable 19.

In order to send and receive electrical and electronic signals into the PCB 6, there are connections 13, 14 of the electrical cables to the PCB, which are plug connections for computer couplings.

The drive unit according to the invention comprises a DC motor 1 which drives a false twisting spindle assembly 3, for example, using a toothed belt 2, and which deforms a synthetic yarn 4 which touches a detector bar 5 of a yarn tension measuring device 7, wherein a PCB 6 is connected to the DC motor 1 via a wire 8 and a sensor cable 9 and via further wires 15, 16, 17, 18 to a transformer 20 which is supplied with electrical energy, for example 220V, via a U-V-W cable 19, which converts this voltage to 48V, for example, and which is transmitted to the DC motor 1 via the PCB 6, in order to drive the false twisting spindle assembly using this energy, the DC motor 1 being controllable by the PCB 6 using a sensor cable and thus deforming the synthetic yarn, characterized in that the yarn tension measuring device 7 is now also connected to the PCB 6 via a wire 10 and sensor cables 11, 12 and thus also to the DC motor 1, which causes each change in yarn tension to be led into the PCB 6 and the rotational speed of the motor can be adjusted very rapidly and the rotational speed of the yarn can be changed by the PCB 6, and thus the rotational speed of the yarn can be adjusted very rapidly and the yarn can be changed in accordance with the maximum speed of the yarn tension.

List of reference numerals

1 DC motor/DC motor

2. Toothed belt

3. False twist crimping (texturing) machine set

4. Textured yarn

5. Detector rod of yarn tension measuring instrument

6 PCB (printed Circuit Board) for controller such as motor rotation speed

7. Yarn tension measuring instrument

8. U-V-W current supply section (e.g., 48V) for motor

9. Sensor cable for motor

10. U-V-W current supply part for yarn tension measuring instrument

11. Sensor cable+ (V)

12. Sensor cable- (V)

13. Connection to computer, input to PCB

14. Connection to computer, output from PCB

15. DC current to PCB +

16. DC current to PCB

17. DC current from transformer +

18. DC current from transformer

19 U-V-W(220V)

20. A transformer.

Claims

1. A drive unit comprising a DC motor (1) which drives a false twisting spindle set (3) and which deforms a synthetic yarn (4) which touches a detector bar (5) of a yarn tension measuring device (7), wherein a PCB (6) is connected to the DC motor (1) via an electric line (8) and a sensor cable (9) and to a transformer (20) via further electric lines (15, 16, 17, 18), which is supplied with electrical energy via a U-V-W electric cable (19) which converts the voltage of the electrical energy and which is transmitted via the PCB (6) to the DC motor (1) in order to drive the false twisting spindle set with the electrical energy, the DC motor (1) being controllable by the PCB (6) with a sensor cable and thus deforming the synthetic yarn, characterized in that the yarn tension measuring device (7) is now also connected to the PCB (6) via an electric line (10) and a sensor cable (11, 12) and thus also connected to the motor via a U-V-W electric cable (19), which can be changed very rapidly in terms of the yarn tension, and thus can be produced at the maximum speed of the yarn speed, and the yarn can be changed in accordance with the maximum speed, and the yarn tension can be changed rapidly, and the yarn can be changed in accordance with the maximum speed of rotation, the yarn tension, the motor can be produced, and the speed can be changed continuously, and the rotational speed can be changed at the maximum time, and the speed can be changed, the spindle speed of the false twisting spindle unit in the texturing machine is controlled by the yarn tension, and the yarn tension measuring device (7) is connected to the PCB by means of a sensor wire, so that the value calculated on the basis of the yarn tension change only causes a change in the speed of the DC motor (1) and the false twisting spindle unit (3) if the yarn tension change lasts longer than 1 second, i.e. fuzzy logic is integrated in the PCB (6).

2. Drive unit according to claim 1, characterized in that the DC motor is a DC motor (1) in that a very small rotational speed change of >0.1% can be achieved rapidly with only one DC motor (1) and one single associated PCB (6).

3. A drive unit according to claim 1 or 2, characterized in that on the central console in the texturing machine, a computer is connected to all PCBs of the machine, said computer making all important data visible, controllable and changeable in the computer and in each texturing position.

4. A drive unit according to claim 3, characterized in that the computer, in the case of corresponding installation in a texturing machine, can also be located anywhere in a central control room in the texturing plant and from there can call, change or control data for a very large number of texturing machines, so that statistics on the availability of the texturing sites on each texturing machine can also be achieved.

5. Drive unit according to claim 1 or 2, characterized in that 12, 24 or any other number of the drive units are fitted together with the yarn tension measuring instrument (7) in a post-processed aluminium profile or profiles.

6. A drive unit according to claim 1 or 2, characterized in that 12, 24 or any other number of said drive units are assembled in a spindle beam made of mineral casting or of a mixture of mineral casting and profile.

7. Drive unit according to claim 1 or 2, characterized in that it can be used for retrofitting in a texturing machine, in order to retrofit a texturing machine which has hitherto been AC-motor-driven with the false twisting spindle unit, spindle beams, receiving surfaces for DC-motor, drive pinions for DC-motor and spindle rotational speeds of the false twisting spindle unit which are already present and can be used for yarn tension-controlled spindle rotational speeds of the false twisting spindle unit, it is only necessary to fit the DC-motor (1), PCB (6) and transformer (20) in the respective channels and to connect the yarn tension measuring device (7) with the PCBs.

8. Drive unit according to claim 1 or 2, characterized in that the DC motor (1) drives the false twist spindle set (3) with a toothed belt (2).

9. A drive unit according to claim 1 or 2, characterized in that the voltage of the electrical energy is 220V.

10. The drive unit of claim 9, wherein the transformer converts the voltage to 48V.

11. A drive unit according to claim 3, characterized in that the data is yarn tension or rotational speed.