For operating the method and coil winding machine of winder unit
Technical field
The present invention relates to a kind of methods for operating winder unit, more specifically to one kind for yarn to be arranged
The method of tensioning.The invention further relates to a kind of coil winding machines.
Background technique
In the case where known coil winding machine, as described in 2 468 670 B1 of EP, with open loop or can for example closed
Ring mode is tensioned to control yarn tension or yarn, i.e. the yarn tension relative to yarn cross section area.Yarn tensioning passes through
Yarn tensioner setting.In the case where the tensioning of opened loop control yarn, sensor is not needed, and for example refer to yarn tensioner
Determine constant power control signal.For the tensioning of closed-loop control yarn, need to measure the sensor for representing the amount of yarn tensioning.Claimed
It is commonplace for the sensor of yarn tension sensor.Operator can be arranged still control in an open-loop manner in a closed loop manner
Yarn tensioning processed.It is that comparison is wise for each lot number (lot) Lai Zhiding this set.Lot number is formed by work station
, at work station, identical yarn is wound into cross winding bobbin with identical characteristic.In principle, even if there are yarn tension biographies
Sensor, operator also can specify opened loop control.In this case, yarn tension sensor is deactivated, or at least control is single
Member does not use measured value.
In further possibility, at the winder unit with tension sensor, yarn tensioning is controlled in a closed loop manner,
And sense and store the Setting pattern of yarn tensioner.Then can use the mode unwind the cylinder yarn of identical lot number without
Measure yarn tensioning.For example, can sense and store the setting of yarn tensioner according to the length of yarn unwound from cylinder yarn.It moves back
Around length of yarn be spin cylinder yarn on remaining amount of thread measurement result.As described in 2 468 670B1 of EP, such as
The failure of fruit yarn tension sensor, then can be used the mode;Or the mode usually makes winder unit in no yarn
It can also be operated in the case where force snesor.In the latter case, it is only necessary to a reference with yarn tension sensor
Winder unit.
When pulling out yarn from spinning cylinder yarn, yarn tensioning increases without influence appropriate.However, in order to keep yarn
Be tensioned it is constant, can be controlled in a closed loop manner in the manner described above by yarn tensioner the yarn tensioning.Then, according to from moving back
The increase of the yarn tensioning obtained around process reduces stretcher pressure.Other than yarn tensioner, yarn tensioning can also be by
To the influence of winding speed.Due to this reason, for example, from known to 37 33 597 A1 of DE according to spinning cylinder yarn on remaining yarn
Amount carries out opened loop control to winding speed.The opened loop control of this winding speed can be by alternatively carrying out, or in addition to logical
It crosses yarn tensioner and yarn tensioning be additionally carried out except closed-loop control.In the case where closure control yarn tensioning,
Winding speed can not also be changed, until specified yarn can not be maintained to be tensioned by yarn tensioner again.With spinning
The reduction of leftover yarn length on tube yarn, yarn tensioning will rise without further influencing.Therefore, yarn tensioner will
Apply more strong pressure when cylinder yarn stroke starts, and reduces the pressure in cylinder yarn stroke.Yarn tensioner may arrive
At the point that can not further reduce up to pressure.This means that yarn tensioning will rise.This point in order to prevent can reduce
Winding speed.The speed preferably reduces step by step.In the first step, the speed, yarn tensioning are reduced with the ratio limited before
It reduces, and yarn tensioner must increase again the pressure of yarn tensioner, so that yarn tensioning be made to keep constant.Then lead to
Cross the control yarn tensioning in a closed loop manner again of yarn tension sensor and yarn tensioner.Once the pressure of yarn tensioner to
It returns and is reduced to minimum value, then further decrease winding speed in second step.
Yarn tensioning, which has the quality of cross winding bobbin, to be significantly affected.Therefore, in the case where quality requirement height, volume
Around unit equipped with yarn tension sensor, and control yarn tensioning in a closed loop manner.In the lower situation of quality requirement,
Yarn tension sensor is saved in cost reason, and yarn tensioner is set in a position-stable manner.It is described above to be used to set
The mode for setting yarn tensioner represents a kind of compromise.It therefore, also can be by full cylinder in the case where no yarn tension sensor
Yarn reel is coiled into the cross winding bobbin of high quality.However, remaining cylinder yarn and lopsided cylinder yarn cannot most preferably be unwound.
2 671 983 A2 of EP discloses a kind of winder unit of coil winding machine, which there is so-called unwinding to add
Fast device.Unwinding accelerator is a kind of tubular structure, and with the progress of cylinder yarn unwinding process, the tubular structure is upper and lower in the axial direction
It drops on cylinder yarn.Thus, it is possible to influence ballooning of yarn (ballon).Yarn tensioning reduces, and can increase winding speed.
Accelerator is unwound with the sensor device for sensing cylinder yarn circular cone, the unwinding of the yarn body of the sensor arrangement senses cylinder yarn
Head.It thus can suitably reduce unwinding accelerator.For example, the unwinding accelerator can be reduced by stepper motor.From stepping
The step number of motor can derive the position of unwinding accelerator and thus derive the position of cylinder yarn circular cone.In EP 2 671 983
In A2, unwinding accelerator is also used to additionally determine the position of the irregular portion in cylinder yarn when irregular portion occurs.Know this
Position allows to reduce winding speed (for example, for cylinder yarn of identical lot number) at this location.
Summary of the invention
Problems solved by the invention is to be suitably set yarn tensioning at the winder unit of coil winding machine with plain mode.
The problem is solved by a kind of method described below for being used to operate winder unit.Yarn is wound from cylinder yarn
It is more specifically wound up on cross winding bobbin to retracting bobbin.Yarn is arranged by yarn tensioner to be tensioned.With unwinding
The progress of journey reduces unwinding accelerator in the cylinder yarn.By being located at reference to the yarn tension sensor at winder unit to close
Ring mode controls the yarn tensioning, wherein the yarn tensioning is arranged according to the measured value of the yarn tension sensor
Device.It is located at setting for the yarn tensioner with reference at winder unit according to the position of the unwinding accelerator to sense and store
It sets.At the winder unit, the yarn is arranged by the value stored according to the position of the unwinding accelerator and is tensioned
Device.
The problem is also solved by a kind of coil winding machine of winder unit with multiple same types, which has such as
Lower feature.The winder unit is designed to for yarn being wound up on retracting bobbin from cylinder yarn, is more specifically wound up into intersection volume
On bobbin.The winder unit have for be arranged yarn tensioning yarn tensioner and can with unwinding process progress
And reduced unwinding accelerator.One winder unit is designed to have the reference winder unit of yarn tension sensor.Setting
There is control device, the control device is designed to control the reference volume in a closed loop manner by the yarn tension sensor
Yarn tensioning at unit, and the yarn tensioner is set according to the measured value of the yarn tension sensor.Institute
Control device is stated to be also devised to sense and be stored according to the position of the unwinding accelerator at the reference winder unit
Yarn tensioner setting, and be arranged at winder unit according to the unwinding accelerator by the value stored
Yarn tensioner.
Any winder unit of coil winding machine can be designed as described with reference to winder unit.Then, in the reference volume
The correlation determined at unit can be used for other winder units.
Allow to the feelings in not yarn tension sensor with coil winding machine according to the present invention according to the method for the present invention
Most of winder units of coil winding machine are operated under condition, however still may insure to maintain specified yarn on the entire stroke of cylinder yarn
Line tensioning.It can be tensioned with specified yarn and reliably unwind incomplete cylinder yarn and lopsided cylinder yarn.Cylinder yarn circular cone is added by unwinding
Yarn tensioner is arranged according to the cylinder yarn circular cone position of cylinder yarn to be unwound to detect in fast device.Based on unwinding accelerator
Move downward to detect the change in location of the cylinder yarn circular cone generated due to unwinding process, and according to the cylinder yarn circular cone stored
Position and the setting of yarn tensioner between correlation yarn tensioner is set.
Other than operating winder unit in the case where no yarn tension sensor, the present invention makes it also possible to evade
The failure of yarn tension sensor.It, can be by the cylinder that is stored it means that if yarn tension sensor breaks down
Yarn tensioner is arranged in correlation between the position of yarn circular cone and yarn tensioner.
Other than the setting of yarn tensioner, it is assumed that also as described above according to the measured value of yarn tension sensor and/
Or winding speed is adjusted according to the setting with reference to the yarn tensioner at winding point, then it can also be according to the position of unwinding accelerator
Set advantageously storage winding speed.Thus, other than the setting of yarn tensioner, winding can also be adjusted in winding process
Speed, without yarn tension sensor.
Detailed description of the invention
The present invention is described in more detail below based on embodiment example shown in figure, in the accompanying drawings:
Fig. 1 shows coil winding machine according to the present invention, which has multiple winder units.
Fig. 2 shows the reference winder units of coil winding machine according to the present invention.
Specific embodiment
Fig. 1 shows coil winding machine 1, and the coil winding machine 1 is multiple between the end frame 55,56 of coil winding machine 1 with being arranged in
Winder unit 2 and reference winder unit 2 '.The coil winding machine, which has, is connected to winder unit controller 40 by bus system 60
Central control unit 50.The central control unit has the keyboard 52 and display 51 for operating and showing.
Fig. 2 shows the schematic side elevations of the reference winder unit 2 ' during winding process.The structure of winder unit 2
It is all identical.Additionally only there is yarn tension sensor 20 with reference to winder unit 2 '.It, will be in RING SPINNING at winder unit 2
The only feeding bobbin with relatively fewer yarn material (commonly referred to as spinning cylinder yarn) 9 produced on yarn machine recoils the intersection at large volume
Winding bobbin 11, due to this be it is well known, be no longer more fully described.The cross winding bobbin 11 of completion is then by certainly
Such as doffing machine of service unit 57 of dynamic operation is transferred to the bobbin conveying device 21 along machine direction, and is transported to arrangement
Bobbin loading depot at machine end etc..
For this coil winding machine 1 additionally equipped with circulation pipe library (round magazine), cylinder yarn 9 of spinning is stored in the circulation
In Guan Ku;Or automatic coil winding machine has the logistics device for the form for taking bobbin and bobbin conveying system 3.With the cloth that is vertically oriented
It sets in the spinning cylinder yarn 9 and bare bobbin 34 on delivery board 8 and then is recycled in this bobbin and bobbin conveying system 3.Described
In bobbin conveying system 3, merely illustrate cylinder yarn supply line 4, can reverse driven storage line 5, lead to winder unit 2 a transverse direction it is defeated
Line sending 6 and bobbin exhausting line 7.As shown, the spinning cylinder yarn 9 conveyed is located in unwinding position 10 first (should surround position
In the region for setting the lateral transfer line 6 that 10 are located at winder unit 2), then recoiled.
For this purpose, each winder unit 2 has at various yarn monitorings and yarn as simultaneously therefore only implying as is known
Device is managed, these devices not only ensure that spinning cylinder yarn 9 can be recoiled into the cross winding bobbin 11 of large volume, but also ensure
The yarn flaws of yarn 30 are monitored in rewinding process, and remove detected yarn flaws.Each winder unit 2 has volume
Around cell controller 40, which is connected to yarn monitoring and yarn treatment by the control route only implied
Device, and pass through the control device 58 that bus system 60 is connected to central control unit 50 and service unit 57.
Winder unit 2 for example all has winding device 24, which, which has, is supported for around pivot axis 19
The bobbin cradle 18 of movement, and equipped with bobbin driving device 26 and Yarn lateral-movement device 28.
In the embodiment example shown in, cross winding bobbin 11 is shelved on drive by its surface during winding process
On dynamic roller 26, and driven by being frictionally engaged by the driven roller 26.The driving controllable, reversible by revolving speed of driven roller 26
Device (not shown) and play a role.
The traversing of yarn 30 is by the Shi Fasheng on running to cross winding bobbin 11 of Yarn lateral-movement device 28, current real
It applies in mode example, which is finger-like yarn guide 29.
Winder unit 2 is also with Yarn Connecting apparatus (preferably with the pneumatic operation splicing apparatus of cutter device 43
13), low yarn sensor 22, yarn tensioner 14, yarn clearer 15 and waxing attachment 16 with yarn cutting device 17.Fig. 2
Shown in reference to winder unit 2 ' additionally have yarn tension sensor 20.
In addition, winder unit 2 can be applied equipped with suction nozzle 12 and clamping pipe 25 to suction nozzle 12 and clamping pipe 25
Add negative pressure.Suction nozzle 12 and clamping pipe 25 are connected to the vacuum cross member 32 along machine length, the vacuum cross member
32 are connected to vacuum source 33 again.
In embodiment illustrated example, also additionally it is located in the region of waxing attachment 16 from thread path and is omited
Micro- yarn trap 23 being arranged backward, so that yarn 30 is run in front of the opening 42 of yarn trap 23 during winding process.
Yarn trap 23 is similarly connected to vacuum cross member 32 by air switch 27.Air switch 27 has the company for yarn trap 23
Column (stub) 35 and the relatively large safety post of volume (relief stub) 36 are connect, the opening of the safety post 26 is in normal volume
Around 12 gastight closing of suction nozzle during operation by being located at holding fix P.It will be safe by being pivoted up suction nozzle 12
Column 36 opening ensure at yarn trap 23 existing for negative pressure disintegrate.
Unwinding accelerator 45 is arranged on the unwinding position 10 of cylinder yarn 9.Exist at the cylinder yarn side of unwinding accelerator 45
Measuring device 46.The detection of measuring device 46 is located at the cylinder yarn circular cone 47 of the cylinder yarn 9 in unwinding position 10.In this way, can be with moving back
Around process progress and in cylinder yarn 9 reduce unwinding accelerator 45.Unwinding accelerator 45 by measuring device 46 be maintained at away from
At 47 constant distance of cylinder yarn circular cone.Unwinding accelerator 45 for example can carry out axial fortune by the stepper motor being not shown
It is dynamic.Step number by sensing stepper motor can readily determine that the position of unwinding accelerator 45.
In order to maintain constant yarn tension, when cylinder yarn stroke starts firstly the need of higher stretcher pressure.Spinning
Leftover yarn amount in cylinder yarn 2 it is smaller or unwinding accelerator 45 position further shift downwards, maintain constant yarn tension
The stretcher pressure that must be arranged is lower.Under constant tension device pressure, yarn tension thus will with unwinding process and
Increase.
Winding speed need not all be kept constant during the entire stroke of cylinder yarn.If yarn tensioner 14 cannot be further
Pressure is reduced, then can reduce winding speed step by step so that yarn tensioner 14 is engaged with yarn 30 again.
In the embodiment example shown in, coil winding machine 1, which has, refers to winder unit 2 '.Multiple references are equipped with to coil winding machine
Winder unit 2 ' is also reasonable.If concurrently producing different lot numbers on coil winding machine 1, (it is equipped with multiple in this way
With reference to winder unit 2 ') it is just especially suitable.Closed-loop fashion control yarn tensioning is sentenced in reference winder unit 2 '.This explanation, leads to
It crosses yarn tension sensor 20 and measures yarn tensioning, and yarn tensioner 14 is arranged so that yarn tensioning and target value
Match.The setting of yarn tensioner 14 is sensed and stored according to the position of unwinding accelerator 45.Furthermore it is also possible to which storage volume is around speed
Degree.These values can be stored in nonvolatile manner in the memory of workstation controller 40 or central control unit 50 is deposited
In reservoir.Described value can for example store in the form of a table.The table will thus be used for setting and the winding of yarn tensioner 14
The value of speed is associated with the unwinding position of accelerator 45.
Determining data are sent to the work station meter of the winder unit 2 of no yarn tension sensor 20 in this way
Calculation machine 40.Then yarn tensioner 14 and possible volume are arranged by the table stored according to the position of unwinding accelerator 45
Around speed.In order to improve no yarn tension sensor 20 winder unit operation, can be according in reference volume around list
The table of multiple cylinder yarns of the lot number of member place sensing determines the average value for yarn tensioner to be arranged.It thus, then can be
These average values are used at winder unit 2.