CN100443644C - Abnormality detecting device for drafting device of spinning machine - Google Patents
Abnormality detecting device for drafting device of spinning machine Download PDFInfo
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- CN100443644C CN100443644C CNB2005100740488A CN200510074048A CN100443644C CN 100443644 C CN100443644 C CN 100443644C CN B2005100740488 A CNB2005100740488 A CN B2005100740488A CN 200510074048 A CN200510074048 A CN 200510074048A CN 100443644 C CN100443644 C CN 100443644C
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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
- D01H13/20—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to excessive tension or irregular operation of apparatus
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- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
A drafting device 11 drives front bottom rollers 12, middle bottom rollers 13, and back bottom rollers 14 each by two motors: front roller driving motors 16a and 16b, middle roller driving motors 17a and 17b, and back roller driving motors 18a and 18b. The driving motors are variable-speed-controlled through inverters 19a, 19b, etc. , which are provided with current sensors SA. The current sensors SA detect the amount of electric current supplied in correspondence with the load torques of the driving motors 16a, 16b, etc. A CPU 31 judges that there is abnormality when the difference between the load torques of the two motors driving each back roller is deviated from a set range.
Description
Technical field
The present invention relates to the unusual checkout gear of drafting device for spinning machine, relate to the unusual checkout gear of drafting system more precisely by the spinning machine of the type of a plurality of motor-driven drawing rollers.
Background technology
In general, be three row's forms at the drafting system of decide to use in the spinning machine of fine spining machine or Speed frames such as ring, it contain preceding, in and rear roller, wherein before down, in down and after bottom roll drive by single motor.Except this point, have a kind of device, in order to be easy to change draw ratio, in this device before bottom roll and back bottom roll respectively by motor-driven independently; Because increase main shaft quantity causes a kind of device of big machine length, and wherein each motor is located at two ends of described machine, bottom roll is driven by the dual-side from described machine with existence.
In the drafting system of this form, because some reason or other reason, may take place: for defeated material be wrapped in drawing rollers around, perhaps the drafted roller of apron catches on.In this case, when continuing to drive, the parts of drafting system just have the danger of damage.
When taken place as described above to be wrapped in for defeated material drawing rollers etc. around the time, on motor, just applied overload, and overload current flows through described motor, cause temperature to raise.Usually, this overload current or the electric machine temperature rise that is not less than predetermined temperature are detected, and the operation of a machine just is stopped, and prevents the destruction of each parts thus.Yet, in unusual detection method, even occur when unusual when the drafting system side, as long as motor is not in overload, motor will continue to drive, and causes the worry of each parts damages of counter extensioin device.This situation betides: for example when same motor is installed on the machine of different technologies specification, and according to the technical specification of machine, load when drafting system is in overload conditions can less than the allowable load of motor (for example see JP 2003-166135A[0004] paragraph is to [0006] paragraph, Fig. 1).
In addition, in general, for each drawing rollers, the screw thread of the yin, yang threaded portion by being formed in its termination is in conjunction with linking together a plurality of roller shafts, and makes bottom roll constitute single axle.According to the direction of the load of bearing, determined the direction of described screw thread, so that work to being fastenedly connected by bottom roll.Yet,, cause taking place loosening at threaded portion because the screw thread combination that loosening masterpiece is used for threaded portion may take place in the fluctuation of drafting force etc.When having taken place when loosening, just can not finish drawing-off with predetermined draw ratio.In this case, the load on the motor is less than the load during normally spinning.Therefore can not detect unusually by detecting motor overload electric current or motor temperature.
As the method that overcomes the above problems, might detect the load of motor in advance by trial run at normal spinning state, in storage device, store the value of acquisition as standard value, detect the load of motor during the reality spinning, relatively acquisition value and above standard value have just determined abnormal conditions when difference exceeds predetermined amount.Yet, have difference according to the load on spinning conditions (difference) motor.For example, when spinning speed was identical, the load of motor was inequality between cotton fiber spinning and synthetic fiber spinning.In addition, inequality according to the load of yam count (difference) motor.Therefore, need to store and the corresponding standard value of spinning conditions.
Summary of the invention
Finished the present invention in view of above each problem.The purpose of this invention is to provide the unusual checkout gear of drafting device for spinning machine, described checkout gear can need not to store strict standard value with simple structure and detect take place in the drafting system during the spinning unusual.
For achieving the above object, according to the invention provides the unusual checkout gear of drafting device for spinning machine, each drawing rollers is by a plurality of motor-driven in described spinning machine.Unusual checkout gear is equiped with torque detecting apparatus and decision maker, described torque detecting apparatus is used for detecting the load torque of at least two motors of a plurality of motors, just judges when the difference of described decision maker between the load torque of described two motors departs from preset range to have occurred unusually.
Description of drawings
Fig. 1 is the simple vertical view according to the drafting system of first embodiment, has omitted top roller;
Fig. 2 is the vertical view of partial cutaway, shows roller shaft is how to link together; With
Fig. 3 is the simple vertical view according to the drafting system of second embodiment, has omitted top roller.
The specific embodiment
(first embodiment)
Be first embodiment that is applied to ring throstle below, it is equiped with a pair of (a right and left side) drafting system, will be described with reference to figure 1 and 2.Fig. 1 is the simple vertical view according to the drafting system of first embodiment, has omitted top roller; And Fig. 2 is the vertical view of partial cutaway, shows how roller shaft links together.
As shown in fig. 1, drafting system 11 is structures of three transmission shaft types, comprises preceding transmission, middle transmission and back transmission, and is provided with preceding bottom roll 12, middle bottom roller 13 and back bottom roll 14 as drawing rollers.Before bottom roll 12 be supported in the pre-position with respect to roller pillar (not shown), and middle bottom roller 13 and back bottom roll 14 support so that allow by the middle part of the bearing support (not shown) that is fixed in its position and do position adjustment longitudinally with respect to the roller pillar.Middle bottom roller 13 is equiped with apron (not shown).In addition, corresponding to bottom roll 12-14, precedingly go up, in go up and structure that back top roller (they are all not shown) is configured to know.
Each of bottom roll 12-14 is divided into two power transmission shaft 12a and 12b, 13a and 13b and 14a and 14b, and two power transmission shaft 12a separately and 12b, and 13a and 13b, 14a and 14b are arranged to coaxial.In the present embodiment, each of bottom roll 12-14 is separated in vertical midpoint, and per two power transmission shaft 12a and 12b, 13a and 13b, 14a and 14b are arranged to symmetry.As shown in Figure 2, the screw thread of yin, yang threaded portion 15a, the 15b by being formed in its end constitutes each power transmission shaft in conjunction with a plurality of roller shafts 15 are joined to one another.The power transmission shaft 12a of bottom roll 12 before Fig. 2 shows.
Preceding bottom roll 12 to (right and a left side) in, the a pair of power transmission shaft 12a that is positioned at Fig. 1 left-hand side is driven from an end of machine by the first front roller drive motors 16a, and a pair of power transmission shaft 12b that is positioned at Fig. 1 right-hand side is driven from another end of machine by the second front roller drive motors 16b.The rotation of the first front roller drive motors 16a is passed to each power transmission shaft 12a by gear row (not shown), and the rotation of the second front roller drive motors 16b is passed to each power transmission shaft 12b by gear row (not shown).
Similarly, to middle bottom roller to (right and a left side), the a pair of power transmission shaft 13a that is positioned at Fig. 1 left-hand side is driven from an end of machine by the first middle roller drive motors 17a, and a pair of power transmission shaft 13b that is positioned at Fig. 1 right-hand side is driven from another end of machine by the second middle roller drive motors 17b.The rotation of the first middle roller drive motors 17a is passed to each power transmission shaft 13a by gear row (not shown), and the rotation of the second middle roller drive motors 17b is passed to each power transmission shaft 13b by gear row (not shown).
Similarly, for the back bottom roll to (right and a left side), the a pair of power transmission shaft 14a that is positioned at Fig. 1 left-hand side is driven from an end of machine by the first rear roller drive motors 18a, and a pair of power transmission shaft 14b that is positioned at Fig. 1 right-hand side is driven from another end of machine by the second rear roller drive motors 18b.The rotation of the first rear roller drive motors 18a is passed to each power transmission shaft 14a by gear row (not shown), and the rotation of the second rear roller drive motors 18b is passed to each power transmission shaft 14b by gear row (not shown).
Used variable speed electric motors, particularly as drive motors 16a, 16b, 17a, 17b, 18a and 18b, described variable speed electric motors, particularly drives and controls by converter 19a, 19b, 20a, 20b, 21a and 21b respectively.Converter 19a, 19b, 20a, 20b, 21a and 21b are controlled by controller 30.Each converter 19a, 19b, 20a, 20b, 21a and the 21b input direct current by being obtained by AC/DC current transformer (not shown) conversion civil power, output and predetermined number of revolutions (RPM-rev/min) be the corresponding electric current of load of rotational drive motor 16a, 16b, 17a, 17b, 18a and 18b down.
Each converter 19a, 19b, 20a, 20b, 21a and 21b are provided with current sensor SA, and current sensor SA is used to detect the magnitude of current (current of electric amount) that flows through each drive motors 16a, 16b, 17a, 17b, 18a and 18b.The load torque that puts on the magnitude of current of motor and described motor is proportional, so current sensor SA has the torque detecting apparatus of making indirect detection motor load moment of torsion.
Output signal based on each current sensor SA, obtain as the CPU31 of decision maker: the load torque difference between two front roller drive motors 16a and the 16b, load torque difference between two middle roller drive motors 17a and the 17b, and the load torque difference between two rear roller drive motors 18a and the 18b.Then, CPU 31 judges: whether described each difference departs from setting range, and when described each difference departs from setting range, just judges to have occurred unusually.Herein, " setting range " be meant by adding the value that allowable error obtains in the load torque undulate quantity, and obtain in advance by test, and described load torque undulate quantity results from the thickness offset etc. of the material (rove) supplied with.Described setting range does not change according to the yam count or the fiber type of spinning, but is set at a general context.
In addition, CPU 31 also controls and is used to drive the motor (not shown) that promotes drive system and spindle drive systems, and control device 30 also is used as the control device of fine spining machine.When having determined that appearance is unusual, CPU 31 implements control to stop the running of fine spining machine.
The data items that ROM32 stored routine data and performing a programme are required.Described routine data comprises the corresponding data between spinning conditions and rotating speed, pattern etc.Described corresponding data is the data of (relation) between spinning conditions and the normal work period speed of mainshaft, drawing-off drive system and the motor speed that promotes drive system, and described spinning conditions is in this way all: various fibrous materials, the yam count of spinning and twisting count.Described pattern indicates the relation between revolution (RPM) and the electric current confession throughput rate that is used for various coiling amounts.In addition, ROM32 stores the scope for the transmission of electricity flow, and is described corresponding with the load torque of normal work period for the transmission of electricity flow.Unusual as in the drafting system 11 constitutes and taken place in the roller shaft 15 of power transmission shaft 12a etc. when loosening, and this value is used to make judgement: which side at described power transmission shaft has occurred unusually.
RAM33 stores temporarily: by the data of input unit input, by the result of calculation of acquisition such as CPU 31 grades.Input unit is used to import the spinning conditions data, for example: the yam count of spinning, the type of fiber (material), the spindle maximum revolution (RPM) of spinning duration of work, spinning length promotes length, the length of the bobbin of cop conical surface hypotenuse length and use.
Secondly running as above-mentioned device of constructing will be described.Before the fine spining machine running, spinning conditions, for example: fibrous material, the yam count of spinning and twisting count are transfused to control device 30 by input unit.When the running of fine spining machine had been activated, the rotation of drive motors 16a, 16b, 17a, 17b, 18a and 18b was from the order of control device 30 with accord with on the basis of spinning conditions and control by converter 19a, 19b, 20a, 20b, 21a and 21b.In addition, controlled spindle drive system and unified and promote the drive motors of drive system, with the velocity of rotation that obtains to be scheduled to.
When fine spining machine turns round, rove pass drafting system 11 back, in and front roller between the interval, thereby drafted, be wound on then on the bobbin, described bobbin rotates integratedly with spindle in reel-up (not shown).
For the magnitude of current of being defeated by drive motors 16a, 16b etc., after current sensor senses, be defeated by control device 30 by converter 19a, 19b etc.CPU 31 makes judgement: having for the difference between the magnitude of current of being defeated by two drive motors that drive identical drawing rollers denys any setting range that departs from, described two drive motors promptly are: first and second front roller drive motors 16a and 16b, first and second middle roller drive motors 17a and 17b, first and second rear roller drive motors 18a and 18b.When any departing from, just determine to exist unusually, and the output abnormality signal.Based on described abnormal signal, carry out the control that machine is decommissioned, and start warning device such as buzzer or warning lamp, the notifying operation person locates to warn the newspaper state thus.
Amplitude for the magnitude of current of being defeated by drive motors 16a, 16b, 17a, 17b, 18a and 18b and load torque is proportional.The load torque basic fixed of each drawing rollers with the corresponding scope of the unevenness of rove thickness in, unless spinning material and draw ratio have changed.In drafting system 11, preceding bottom roll 12, middle bottom roller 13 and back bottom roll 14 are divided into two parts in vertical midpoint, and each part is driven by two drive motors.Therefore, in spinning, do not have when unusual, drive the load torque difference between two motors of every class bottom roll 12-14, the load torque difference between the first front roller drive motors 16a and the second front roller drive motors 16b for example, just less than with in described setting range, be defeated by difference between the magnitude of current of two drive motors 16a and 16b simultaneously also in described setting range.Yet, when occurring when unusual, rove for example takes place be wrapped in around the drawing rollers or clamp apron, and the load torque that drives drawing rollers increasing, the load torque of drive motors also increases, and the result is that described difference departs from setting range.Become when this vertical mid point that unusually side by side betides with respect to drawing rollers in each position of symmetry, can not utilize the difference between the magnitude of current of being defeated by drive motors 16a and 16b etc. unusually and be detected.Yet the possibility that this situation takes place is very little.Therefore, even drive motors 16a, 16b, 17a, 17b, 18a and 18b do not reach overload, also can in the load of drawing rollers, detect unusual.
Present embodiment provides following effect:
(1) load torque of two motors in a plurality of motors ( drive motors 16a, 16b etc.) of driving drawing rollers (preceding bottom roll 12, middle bottom roller 13 and back bottom roll 14) is detected by torque detecting apparatus; And be provided with decision maker (CPU 31), when the difference between the load torque of described two motors departed from setting range, described decision maker just judgement had occurred unusual.When spinning conditions has changed, the change amount of the difference between the load torque is little, so by more common critical field and detected load torque difference with regard to possible accuracy judge whether to have taken place unusual, judge whether unusual standard value and need not to set for the spinning under each spinning conditions.The result is, available simple structure and need not store strict standard value and can detect take place in the drafting system 11 unusual during spinning.
(2) described two motors are the motors ( drive motors 16a, 16b etc.) that are used for from two side drive drawing rollers (preceding bottom roll 12 etc.).Therefore, can be with simple structure and need not store strict standard value and can detect unusual in the drafting system 11 in the spinning phase.
(3) described drawing rollers (preceding bottom roll 12 etc.) are divided into two parts in vertical midpoint, and CPU 31 relatively drives the load torque of two motors of same the drawing rollers 12-14 in the transmission.Therefore, be negative (-) or just (+) based on the difference between the load torque that is detected, just may discern the side that unusual power transmission shaft ( power transmission shaft 12a, 12b etc.) have taken place.In general, when unusual, the moment of torsion that is used to drive the power transmission shaft that unusual side takes place can increase.Yet in the present embodiment, power transmission shaft 12a, 12b etc. are driven from a side, and its another end is made into free end, so the loosening threaded portion that may be created in the roller shaft 15 that constitutes power transmission shaft 12a, 12b etc.In the case, the load torque of the drive motors of the power transmission shaft that has become flexible has been reduced, and will be wrong judgement so in the big relatively side of load torque unusual judgement has taken place.Yet, in the present embodiment, corresponding to being stored of the load torque of normal work period for transmission of electricity stream scope.Therefore, when making when whether unusual judgement takes place, CPU 31 also always the output signal of the current sensor SA of transformation into itself's device 19a, 19b etc. make about load torque whether less than the judgement of the load torque under the normal condition.Therefore, based on result of determination, just may correctly judge unusual power transmission shaft side has taken place.When described load torque during, just determined to have taken place unusually by the side of the less motor-driven drawing rollers of load torque less than the load torque value under normal condition.In addition, also may make a determination: any unusually whether relate to that load torque increases unusual or relate to unusual that load torque reduces.
(4) for every class bottom roll two drive motors are set: preceding bottom roll 12, therefore middle bottom roller 13 and back bottom roll 14 might be discerned unusual bottom roll kind has taken place, make the easier position of determining to be in the part of abnormal condition of operator thus.
(second embodiment)
Below, will second embodiment be described with reference to figure 3.Present embodiment is different from first embodiment in the following areas: each of all bottom roll 12-14 constitutes wall scroll power transmission shaft 12c, 13c, 14c, and before each bottom roll 12, middle bottom roller 13 and back bottom roll 14 from dual-side by two motor-driven.Those part labeled identical with first embodiment, and its detailed description will be omitted, and describe to concentrate on variant point.
The bottom roll 12-14 that constitutes drafting system 11 extends in parallel between gear-box 22 and 23 each other.A gear-box 22 contains gear row (driven wheel) (not shown), and it is passed to right and lower-left roller 12-14 to the rotation of driving shaft 26, and the rotation of the first drive motors 24a is passed to driving shaft 26 by belt gear 25.Other gear-box 23 also contains gear row (driven wheel) (not shown), and described gear row are passed to right and lower-left roller 12-14 to the rotation of driving shaft 26, and the rotation of the second drive motors 24b is passed to driving shaft 26 by belt gear 25.
First and second drive motors 24a and 24b are connected with converter 27a and 27b, and advance speed Control by control device 30 by converter 27a and 27b.Converter 27a and 27b input dc power, described direct current obtains the civil power conversion (all not having to show) by utilizing the AC/DC current transformer, and for drive motors 24a and 24b are rotated down in predetermined number of revolutions (RAM), imported and the corresponding electric current of load to drive motors 24a and 24b.Converter 27a and 27b are provided with current sensor SA as torque detecting apparatus, and described torque detecting apparatus is used to detect the magnitude of current for being defeated by drive motors 24a and 24b.
In the present embodiment, at drafting system 11 duration of works, the load torque that acts on two drive motors 24a and 24b is by current sensor SA indirect detection.At preceding bottom roll 12, middle bottom roller 13 and back bottom roll 14 from the driven structure in the both sides of machine, unless what generation such as fiber twined in drafting system 11 is unusual, the load that acts on two drive motors 24a and the 24b equates each other, and the load torque difference is in setting range.When having taken place to be wrapped in unusual around the drawing rollers, act on the load torque value on first and second drive motors 24a and the 24b, according to the difference of distance between unusual occurrence positions and the drawing rollers end and different such as fiber.
Except effect identical with the effect (1) of above-mentioned first embodiment and (2), present embodiment provides following effect:
(5) because all bottom rolls 12,13 and 14 are all driven by two drive motors 24a and 24b, when the structure with first embodiment compares, obtained simple structure.
(6) because each bottom roll 12,13 and 14 is component parts of wall scroll power transmission shaft 12c, 13c, 14c, and be driven, in the roller shaft 15 that constitutes power transmission shaft, do not become flexible from both sides.Therefore, do not need to store corresponding to the load torque of operate as normal for the transmission of electricity range of flow, so can get rid of unusual as in the drafting system 11, loosening generation in constituting the roller shaft 15 of power transmission shaft 12a etc.
The present invention is not limited to the various embodiments described above, but can for example implement as follows:
In first embodiment, the scope for the transmission of electricity flow of the load torque in the time of can not storing corresponding to operate as normal judges that load torque is whether less than the value of normal work period and save.In addition in the case, unusual generation can accurately be detected.
Each roller on vertically during separated into two parts, described disconnected position is not limited to described center.When described separated into two parts has influence on off-centered position, be applied on each motor of two motors that drive drawing rollers, with propeller shaft length and the proportional load torque of main shaft quantity so the load torque between two motors under normal condition has individual difference.Therefore, the permissible variation amount that departs from described difference by use just may judge whether to have taken place unusual under first situation about implementing as setting range.
Might use the magnitude of current checkout gear that detects for the magnitude of current of being defeated by drive motors 16a, 16b etc. to replace current sensor SA, described magnitude of current checkout gear directly detects the magnitude of current, each sensor and described magnitude of current correspondent voltage.
Also might provide detection effect to replace detecting the structure that the magnitude of current of drive motors 16a, 16b etc. is defeated by in confession in the torque detecting apparatus of the load torque of drive motors 16a, 16b etc., torque detecting apparatus is used to detect the change in torque of rotating part, and described rotating part is between the side end of drive motors 16a, 16b etc. and drawing rollers drive motors.Used torque converter or analog as torque detecting apparatus.Torque converter becomes the signal of telecommunication (for example voltage) to torque axis.In addition, also may be connected the drawing rollers end of drive motors 16a, 16b side to deformeter (sheet) to detect the load torque of drawing rollers.In these structures, might directly detect load torque.Because the part that detects is the rotating part from the drive motors side end of drawing rollers to the output shaft of drive motors, so can detect the load on the drawing rollers with leaning on.
Being used to monitor the difference between the load torque that acts on drive motors 16a, the 16b etc. and judging when the difference between the load torque departs from setting range is to exist unusual device to be not limited to the structure that uses CPU 31.For example, also can use comparator to judge whether the difference between the load torque that acts on drive motors 16a, the 16b etc. departs from setting range.In addition, also may by the difference between standard value and voltage value or the current value being compared to judge whether occur any unusually with comparator, the difference between voltage value or the current value is the output signal of torque converter.
The present invention is not limited to described structure, in described structure: be used for and act on setting range that the difference between the load torque on drive motors 16a, the 16b etc. compares and be storing in advance as the data of the ROM32 of control device 30 etc.; Also may in RAM33, store identical data by input unit.
The present invention is not limited to described each structure, and in described structure: bottom roll 12-14 is driven from the both sides of machine by drive motors 16a, 16b etc. respectively; Also may be from machine both sides drive part bottom roll (for example, middle bottom roller), from the roller of a side drive remainder of machine.
Replace wherein the drawing rollers in identical transmission by two motor-driven structures, adopt a kind of structure: wherein the drawing rollers in identical transmission are by a motor-driven, and whether each drawing rollers in different transmissions depart from setting range by the difference between the load torque of judging each motor and carry out unusual detection respectively by each motor-driven independently.For example, bottom roll 12 before may driving with single drive motors, and drive middle bottom roller 13 and back bottom roll 14 with single drive motors, wherein, when the difference between the load torque of two drive motors departs from setting range, just determine to have taken place unusual.Also have, in first embodiment, the difference that drives between the load torque of each motor of drawing-off sieve in the different transmissions can be used for unusual detection.
As the alternative method that promptly stops the spinning machine operation by control device 30, according to output, also might continue carving at that time of preset time cycle and finish the control that makes spinning machine out of service at anomaly detection signal from the anomaly detection signal of unusual checkout gear.In the case, when load torque is instantaneous character unusually, does not just need to stop or restarting described machine.
Motor as driving drawing rollers also can use servomotor to replace the described motor of controlling by converter.
The present invention is not limited to ring throstle.The present invention can be applicable to other spinning machine, such as ring throstle, its direct coarse yarn and spinning fine yarn and need not be by the drawing-off sliver, engage the spinner or Speed frames be made rove.
In the present invention, decision maker based on the actual difference between the load torque of two motors and based on the load torque of motor with respect to the difference between the load torque of motor under the normal condition, identify unusual drawing rollers taken place.In the present invention, when the difference between the load torque of two motors is made unusual judgement, decision maker is made the judgement that has departed from normal value about the load torque of which motor based on the difference between the load torque of each motor under normal condition, might identify more accurately thus unusual drawing rollers take place.
Claims (4)
1. the unusual checkout gear of drafting device for spinning machine (11), comprise many transmissions, drawing rollers (12 in described many transmissions, 13,14) drive by a plurality of motors (16a, 16b, 17a, 17b, 18a, 18b), torque detecting apparatus (SA) with the load torque that in described many transmissions, is provided with at least two motors that are used for detecting a plurality of motors (16a, 16b, 17a, 17b, 18a, 18b)
It is characterized in that: described unusual checkout gear is provided with decision maker (31), judge when being used for difference between the load torque of described two motors and departing from setting range taken place unusual.
2. according to the unusual checkout gear of drafting device for spinning machine (11) of claim 1, wherein said spinning machine is a fine spining machine, and described fine spining machine also comprises from both sides driven drawing rollers (12,13,14),
It is characterized in that: described two motors be the drawing rollers (12,13,14) from the same longitudinal axis of two side drives motor and
Decision maker (31) relatively drives the load torque of two motors of the drawing rollers (12,13,14) on the same longitudinal axis.
3. according to the unusual checkout gear of drafting device for spinning machine (11) of claim 2,
It is characterized in that: drawing rollers (12,13,14) on longitudinal direction, be divided into two parts and
Decision maker (31) is that negative or positive is discerned unusual drawing rollers side has been taken place based on the difference between the described load torque.
4. according to the unusual checkout gear of weaving loom drafting system (11) of claim 2,
It is characterized in that: drawing rollers (12,13,14) on longitudinal direction, be divided into two parts and
Decision maker (31) is discerned with respect to the difference between each motor load moment of torsion under the normal condition based on the difference between the load torque of described two motors with based on the load torque of each motor unusual drawing rollers (12,13,14) has been taken place.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004181567A JP2006002300A (en) | 2004-06-18 | 2004-06-18 | Method for detecting abnormality of drafting apparatus in spinning machinery |
| JP181567/04 | 2004-06-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1710166A CN1710166A (en) | 2005-12-21 |
| CN100443644C true CN100443644C (en) | 2008-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100740488A Active CN100443644C (en) | 2004-06-18 | 2005-05-30 | Abnormality detecting device for drafting device of spinning machine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1609893B1 (en) |
| JP (1) | JP2006002300A (en) |
| CN (1) | CN100443644C (en) |
| DE (1) | DE602005011360D1 (en) |
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| JP2013067916A (en) * | 2011-09-22 | 2013-04-18 | Murata Mach Ltd | Spinning machine, winding device and textile machine |
| ITBS20110166A1 (en) * | 2011-11-30 | 2013-05-31 | Marzoli Spa | HANDLING DEVICE FOR THE DISPLACEMENT OF A FILATOIO |
| CN103104797A (en) * | 2012-12-11 | 2013-05-15 | 吴江兰瑞特纺织品有限公司 | Anti-pinch device of textile machinery |
| JP5853994B2 (en) * | 2013-05-30 | 2016-02-09 | 株式会社豊田自動織機 | Comb |
| JP6323328B2 (en) * | 2014-12-18 | 2018-05-16 | 株式会社豊田自動織機 | Method for controlling draft device in spinning machine |
| EP3153609B1 (en) * | 2015-10-05 | 2021-11-10 | Hanning Elektro-Werke GmbH & Co. KG | Drive assembly for a textile machine |
| EP3374547B1 (en) * | 2015-11-11 | 2019-09-25 | Oerlikon Textile GmbH & Co. KG | Method for monitoring quality during texturing, and texturing apparatus |
| JP7257099B2 (en) * | 2017-09-04 | 2023-04-13 | 株式会社豊田自動織機 | Draft device in spinning machine |
| CN109974910B (en) * | 2017-12-27 | 2021-01-26 | 纳思达股份有限公司 | Torque detection method and device |
| CN108251928B (en) * | 2018-01-23 | 2019-12-03 | 苏州元联科技创业园管理有限公司 | A kind of twister for knitted fabric and textile |
| JP2019148039A (en) * | 2018-02-28 | 2019-09-05 | 村田機械株式会社 | Draft device and spinning unit |
| JP2020018031A (en) * | 2018-07-23 | 2020-01-30 | 村田機械株式会社 | Load monitoring system, draft device, spinning unit and spinning machine |
| CN109295571A (en) * | 2018-11-20 | 2019-02-01 | 宁夏如意科技时尚产业有限公司 | Roller speed monitoring and alarming system |
| DE102020106278A1 (en) * | 2020-03-09 | 2021-09-09 | Saurer Spinning Solutions Gmbh & Co. Kg | Device for torque transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4646391A (en) * | 1983-04-27 | 1987-03-03 | Zinser Textilmaschinen Gmbh | Spinners |
| JPH07145520A (en) * | 1993-11-20 | 1995-06-06 | Nippon Boseki Yohin Kenkyusho:Kk | Controller for driving of drawing frame |
| JP2003166134A (en) * | 2001-11-26 | 2003-06-13 | Toyota Industries Corp | Detector for slackness of drafting roller of spinning machinery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2735799A1 (en) * | 1977-08-09 | 1979-02-22 | Zinser Textilmaschinen Gmbh | Spinner drawing section - has signal units with the torque limiter to determine relative start positions of the rollers (BR 26.12.78) |
| US4195389A (en) * | 1977-05-18 | 1980-04-01 | Zinser Textilmaschinen Gmbh | Filament-drawing assembly for spinning machine |
| DE2911379C3 (en) * | 1979-03-23 | 1995-02-23 | Zinser Textilmaschinen Gmbh | Long spinning machine |
| JP2003166135A (en) * | 2001-11-26 | 2003-06-13 | Toyota Industries Corp | Method for detecting abnormality in drafting apparatus of spinning machinery and detector for abnormality and controller for spinning machinery |
-
2004
- 2004-06-18 JP JP2004181567A patent/JP2006002300A/en not_active Withdrawn
-
2005
- 2005-05-24 DE DE200560011360 patent/DE602005011360D1/en not_active Expired - Fee Related
- 2005-05-24 EP EP20050011192 patent/EP1609893B1/en not_active Not-in-force
- 2005-05-30 CN CNB2005100740488A patent/CN100443644C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4646391A (en) * | 1983-04-27 | 1987-03-03 | Zinser Textilmaschinen Gmbh | Spinners |
| JPH07145520A (en) * | 1993-11-20 | 1995-06-06 | Nippon Boseki Yohin Kenkyusho:Kk | Controller for driving of drawing frame |
| JP2003166134A (en) * | 2001-11-26 | 2003-06-13 | Toyota Industries Corp | Detector for slackness of drafting roller of spinning machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1710166A (en) | 2005-12-21 |
| EP1609893A2 (en) | 2005-12-28 |
| DE602005011360D1 (en) | 2009-01-15 |
| JP2006002300A (en) | 2006-01-05 |
| EP1609893B1 (en) | 2008-12-03 |
| EP1609893A3 (en) | 2006-06-14 |
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