CN1273287A - Driving device for driving and drawing rollers in frame - Google Patents
Driving device for driving and drawing rollers in frame Download PDFInfo
- Publication number
- CN1273287A CN1273287A CN 00106797 CN00106797A CN1273287A CN 1273287 A CN1273287 A CN 1273287A CN 00106797 CN00106797 CN 00106797 CN 00106797 A CN00106797 A CN 00106797A CN 1273287 A CN1273287 A CN 1273287A
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- China
- Prior art keywords
- drawing rollers
- motor
- ratchet
- synchronous
- drive unit
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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
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Spinning machine includes draft rollers (3, 4 and 5) and a drive device for driving the draft rollers. The drive device has a drive unit (6) for driving the front draft roller (5), and a drive unit (7) for driving the back and middle draft rollers (3, 4). Each drive unit has a variable speed motor (M2 or M3) and a transmission mechanism, and the variable speed motor of the drive unit (6) for driving the front draft roller is a synchronous AC motor having permanent magnets. A reverse rotation preventing device including a ratchet wheel and a pawl is arranged in the drive unit (6) for preventing a reverse rotation of the front draft roller (5), occurring with a reverse rotation of the synchronous motor (M2), caused by the action of the permanent magnets in the synchronous motor upon starting the synchronous motor.
Description
The present invention relates to a kind of drive unit, this drive unit is used for driving the drawing rollers in the drawing-off portion of frame, described frame such as fine spining machine etc.More specifically, the present invention relates to a kind of drive unit that comprises many driver elements, by described drive unit drives drawing rollers, one of them driver element has the synchronous motor as the variable-speed motor that drives drawing rollers.
For example known the drive unit of a kind of drawing rollers of the above-mentioned type from open (KoKai) No.55-128024 of Japanese unexamined patent.In this known technology, in the drawing-off portion of frame, there are three elongated drawing rollers to be connected respectively to synchronous motor, a frequency generator sends an output signal by a frequency regulator and a frequency converter to each synchronous motor, so each drawing rollers rotates with this signal Synchronization independently.
Above-mentioned setting is favourable because the variation of rotating ratio between the drawing rollers (variation of draw ratio) can be at an easy rate by being used to control its frequency converter or frequency regulator carries out.Therefore, operator no longer has the replacement gear to change the trouble of draw ratio.
As synchronous motor, the synchronous AC motor of a kind of permanent-magnet type is arranged, the rotor that it comprises a stator and has permanent magnet and cage type conductor.When motor starting, rotor is by the torque actuated that transmits from the cage type conductor as induction conductivity and setting in motion, when rotating speed increases and reaches that together leg speed is spent, one so-called " drawing in (synchronous pull-in) synchronously " taken place, thereby the magnetic field of the rotor that permanent magnet is produced is pulled into the rotating field of stator synchronous.The advantage of this motor is that because there is not electric current to flow through the cage type conductor, thermal losses and energy consumption all are reduced to minimum after drawing in generation synchronously.
Yet, when the synchronous motor of the above-mentioned type was used as the motor of the drawing rollers that drive frame, following phenomenon will take place.The stop position of motor rotor on direction of rotation (stop position of the magnetic pole of the permanent magnet of rotor) is stop the Shi Douhui change at every turn, shown in accompanying drawing 7A and 7B.At Fig. 7 A and 7B, arrow 21A represents the magnetic field of the permanent magnet of rotor, and arrow 22A represents the rotating field of stator; Arrow X represents the normal direction of rotation of rotor, and arrow Y represents the reverse rotation direction of rotor.When machine start, if the polarity of the rotating field 20A of stator is opposite with the polarity of the magnetic field 21A of rotor permanent magnet, if and the rotating field 22A of stator on normal direction of rotation X in the place ahead of the magnetic field of rotor permanent magnet 21A, rotor may be pulled into normal direction of rotation (Fig. 7 A), if but opposite among position relation and Fig. 7 A, rotor will be pulled into reverse rotation slightly (seeing Fig. 7 B) on the opposite direction of rotation.The result, the synchronous motor that drawing rollers are reversed rotation drives and backward rotation, so fibre bundle by loose or be stretched, causes that do not expect or wrong drawing-off between the drawing rollers that this roller and another are driven by the synchronous motor of normal rotation, produce yarn breakage or yarn defect.
For example, open (Kokai) No.59-113362 of open (Kokai) No.7-3539 of Japanese unexamined patent and Japanese unexamined utility model discloses a kind of drive unit that is used to drive drawing rollers.This drive unit comprises that is used to prevent the counter-rotational ratchet and pawl mechanicm of drawing rollers.The purpose of ratchet and pawl mechanicm is the backward rotation that prevents drawing rollers in above-mentioned file, and this backward rotation is to produce in drawing rollers twist motion owing to drawing rollers when the one end is driven.The purpose of these open files is not the backward rotation of the drawing-off axle that causes owing to the backward rotation of synchronous motor when preventing to start synchronous motor.
An object of the present invention is to provide a kind of drive unit that drives drawing rollers, it comprises a synchronous AC motor of permanent-magnet type, and simple in structure, the drawing-off of not expecting that may produce in the time of can reducing to start synchronous motor.
The invention provides a kind of drive unit that is used for driving a series of drawing rollers of frame, this device comprises many driver elements that are used to drive drawing rollers; Each driver element has a variable-speed motor and a transmission mechanism, this transmission mechanism is operably connected to above-mentioned variable-speed motor, so that drive at least one drawing rollers, one of them variable-speed motor comprises a synchronous AC motor, and this synchronous AC motor has the permanent magnet that is provided with therein.Above-mentioned drive unit also comprises a back stop, and this back stop is arranged in the transmission mechanism, with the drawing rollers backward rotation that prevents to interrelate; Described transmission mechanism is operably connected to synchronous motor; When synchronous motor starts,, thereby produced the backward rotation of aforementioned corresponding drawing rollers because the effect of permanent magnet produces the backward rotation of synchronous motor in the synchronous motor.
In another feature of the present invention, drive unit also comprises a back stop, and this back stop is arranged in the transmission mechanism that is operably connected to synchronous motor, to prevent the backward rotation of corresponding drawing rollers.When synchronous motor started, because the effect of permanent magnet in the synchronous motor, the synchronous motor backward rotation had caused the backward rotation of aforementioned corresponding drawing rollers.Transmission mechanism is operably connected to synchronous motor, and its speed reducing ratio makes drawing rollers meeting backward rotation to producing the degree of not wishing drawing-off.
In above-mentioned the setting, because back stop prevents the drawing rollers relevant with driver element backward rotation when the synchronous motor starting that driver element comprises, the backward rotation during the synchronous motor starting is owing to be arranged on the effect of the permanent magnet in the motor.Compare with the situation that back stop is not set, the degree lax and/or tension of fibre bundle diminishes between the drawing rollers of these drawing rollers and normal rotation, thereby has reduced a kind of generation of the drawing-off of not expecting.
Preferably, the transmission mechanism that is operably connected to synchronous AC motor comprises that one is connected to a gear of corresponding drawing rollers one end, and the other end of these relevant drawing rollers freely rotates.
Preferably, back stop comprises ratchet rotating with corresponding drawing rollers and a ratchet of ratchet engaged therewith.
Preferably, the transmission mechanism that is operably connected to synchronous AC motor comprises an axle, and ratchet is connected on this axle.
Preferably, ratchet is being supported by a fine spining machine swingably, and back stop comprises a swingingly actuator of mobile ratchet.Like this, when the drawing rollers normal rotation, a holding fix is thrown off, remained on to described ratchet and ratchet; When drawing rollers stop operating, ratchet and ratchet engaged, enter operating position.
In the operating process of frame, ratchet and ratchet are thrown off, so always compare with ratchet engaged and the situation that repeatedly contacts the latter with ratchet, noise level is lower.
Preferably, drawing rollers comprise first break draft roller, middle drawing rollers and front draft roller; Driver element comprises first driver element and second driver element that drives the front draft roller that drive first break draft roller and middle drawing rollers.
Preferably, back stop is arranged in the transmission mechanism of driver element, and this driver element has described front draft roller.
Preferably, back stop comprises an one-way clutch, thereby only allows the normal rotation of drawing rollers.
By below in conjunction with the accompanying drawing description of preferred embodiments, the present invention will be more clear.
Fig. 1 represents to be used to drive the perspective view of a drive unit of drawing rollers according to an embodiment of the invention;
Fig. 2 represents to comprise the front view of the back stop of a ratchet and a ratchet;
Fig. 3 represents the sectional side view of a synchronous AC motor of permanent-magnet type;
Fig. 4 represents the profile of the motor of IV-IV line in Fig. 3;
Fig. 5 represents to comprise the schematic diagram of a part of the spinning machine of a control system;
Fig. 6 represents a sectional side view of drawing-off portion;
Fig. 7 A and Fig. 7 B represent the relation between the rotating field of the magnetic pole of rotor and stator.
Fig. 1 represents a representational spinning machine, i.e. a drawing-off portion 2 of fine spining machine (Fig. 5) 1.At this, drawing-off portion 2 comprises two groups of first break draft rollers 3, middle drawing rollers 4 and front draft roller 5.Be used for driving the drawing rollers 3,4 of drawing-off portion 2 and a drive unit of 5 comprises two driver elements; A driver element is a front roller driver element 6, and another driver element is back and middle roller driver element 7.Each driver element 6 or 7 has a synchronous motor M2 or M3, and a transmission mechanism that is operably connected to synchronous motor M2 or M3.
In front roller driver element 6, there is not the rotation of the synchronous motor M2 of deceleration device to be delivered to front draft roller 5 from the output shaft 14 of synchronous motor M2 by transmission mechanism, wherein transmission mechanism comprises band drive unit 8 and a driving shaft 9.In rear roller and middle roller driver element 7, synchronous motor M3 is connected to a deceleration device 10, the rotation of synchronous motor M3 is delivered to deceleration device 10, and be delivered to first break draft roller 3 from deceleration device 10, and then drawing rollers 4 in being delivered to by gear transmission chain 13 by transmission mechanism; Wherein transmission mechanism comprises band drive unit 11 and a gear transmission chain 12.
The draw ratio of supposing drawing-off portion 2 is 40, and the rotating speed of first break draft roller 3 is 1: 40 with the ratio of the rotating speed of front draft roller 5, and 5 rotations of front draft roller is obviously faster so.Therefore, assumes synchronization motor M2 and M3 be with identical rotational speed, so the speed reducing ratio of the transmission mechanism of rear roller from synchronous motor M3 to first break draft roller 3 and middle roller driver element 7, and the speed reducing ratio of the transmission mechanism of front roller driver element 6 from synchronous motor M2 to front draft roller 5 ratio be 1/40: 1.Because the draw ratio between first break draft roller 3 and the middle drawing rollers 4 is less, it is approximately equal to 1.3, and the speed reducing ratio of front roller driver element 6 is much smaller than the speed reducing ratio of rear roller and middle roller driver element 7.
Therefore, in rear roller and middle roller driver element 7, even if the possibility reverse rotation hardly of first break draft roller and middle drawing rollers 3 and 4 is synchronous motor M3 reverse rotation a little.Yet in the front roller driver element, synchronous motor M2 reverse rotation slightly will cause the counter-rotating of front draft roller 5, and this can cause undesirable or wrong drawing-off between front draft roller 5 and the middle drawing rollers 4.
In front roller driver element 6, ratchet 15 is keyed to the middle part of driving shaft 9, thereby constitutes a back stop T.As shown in Figure 2, an end of a ratchet 17 is being supported by a frame F pivotally, and ratchet 17 just can swing up and down like this, so as with tooth 16 engagement of ratchet 15.The mid portion of ratchet 17 is connected with top as a piston rod 19 of a pneumatic cylinder 18 of the actuator of the oscillating motion of ratchet 17.Piston rod 19 by the spring in the pneumatic cylinder 18 20 along outwardly directed direction bias voltage.When fine spining machine was worked, promptly when drawing rollers rotated, forced air was not supplied to the cylinder chamber 18a of pneumatic cylinder, so ratchet 17 is in a holding fix A, this moment ratchet 17 and ratchet 15 disengagements.On the other hand, when drawing rollers stopped, forced air was supplied to cylinder chamber 18a, was entered an operating position B so ratchet 17 drives, at this moment tooth 16 engagements of the top of ratchet 17 and ratchet 15.The engagement of tooth 16 and ratchet 17 only allows the normal rotation of driving shaft 9 and front draft roller 5.
Shown in Fig. 3 and 4, synchronous motor M2 and M3 comprise the synchronous AC motor of permanent-magnet type.In each motor M2 and M3, it is whole that stator 22 becomes with the inwall of shell 30.The fuse 22a of stator 22 is made by laminated steel sheet, coil 22b last-down (axially) direction is passed fuse 22a and is produced rotating field by the alternating current that the supply frequency equals the AC power frequency.
As shown in Figure 5, fine spining machine 1 has, spindle 40, ring rail 41, above-mentioned drawing-off portion 2 and be used to control the controller 50 of these parts.The spindle drive system system 43 that is used to drive spindle 40 comprises a spindle drive motor M1, and this motor M1 comprises an induction conductivity.Spindle drive system system 43 comprises a reference pulse generator 44 from spindle drive motor M1 to spindle 40.Equally, ring rail lifting device 45 comprises a ring rail drive motor M4, and this motor M4 comprises an induction conductivity.
Motor M1 is connected to INV4 with converter INV1 respectively to M4.The order control that converter INV1 is sent by controller 50 to INV4.Spinning conditions for example rotary speed, draw ratio, number of twists and the layer pitch of spindle passes to controller 50 from the outside.When spindle drive motor M1 rotates when producing given rotary speed by INV1, the rotary speed that reference pulse generator 44 detects spindles is also sent a reference pulse " a " corresponding to the spindle rotary speed to controller 50.According to reference pulse and spinning conditions, controller 50 calculate to be transfused to all the other converter INV2 to the rotation command signal of INV4 satisfying spinning conditions, and will rotate control command respectively and send to converter INV2 to INV4.
The AC power that converter INV2 controls to the M4 supplied frequency to corresponding driving motor M2 according to these control commands to INV4.Drive motor M2 to the rotary speed of M4 by given FREQUENCY CONTROL, to satisfy above-mentioned spinning conditions.In this regard, reference number 51 to 53 expression rotary speed detecting devices, it is respectively applied for the rotary speed that detects ring rail lifting device 45, front roller driver element 6 and rear roller and middle roller driver element 7, so that with detected value input controller 50.Controller 50 is again by determining the consistent generation that comes the abnormal operation of monitoring machinery of rotate command that whether detected value send with controller 50.
When machine stopped, forced air was supplied among the 18a of cylinder chamber and takes ratchet 17 to operating position B; In of tooth 16 engagements of this ratchet 17 with ratchet 15.When the starting machine, when the order of sending by controller 50 makes spindle drive motor M1 begin to rotate, reference pulse generator 44 produces reference pulse " a ", as previously mentioned, the speed control command that slave controller 50 sends makes the AC power of FREQUENCY CONTROL be supplied to remaining motor M2 to M4 by converter INV2 to INV4 based on this reference pulse and spinning conditions given in advance.So motor M2 rotates to M4.
In two synchronous motor M2 and M3, the controlled AC power of frequency is supplied to the coil 22b of stator 22 by converter INV2 and INV3.Therefore the coil 22b at stator 22 produces a rotating field.On the basis of rotating field, an induced-current flows through the cage type conductor 21b of rotor 21, and to produce a field, this produces a motor starting torque with rotating field.So rotor 21 or output shaft 41 beginnings are rotated along normal direction, and front draft roller 5, first break draft roller 3 and middle drawing rollers 4 are rotated along normal direction.At this moment, ratchet 17 is compressed in the forced air among the 18a of cylinder chamber simultaneously at the tooth 16 that operating position B repeatedly breaks away from ratchet 15.Begin to be supplied to the forced air of cylinder 18 to be discharged from from rotation, so holding fix A is thrown off, is displaced to ratchet 17 with the tooth 16 of ratchet 15 under the bias effect of spring 20 through after a period of time of presetting by a timer (not shown).Like this, between ratchet 17 and tooth 16, there is not engagement, in the rotation process of drawing rollers, can not produce noise.When rotor 21 is accelerated near synchronizing speed, speed difference between the rotary speed of the speed of rotating field and permanent magnet 21C becomes very little, the magnetic field of permanent magnet 21C is pulled in the rotating field and (draws in phenomenon-synchronous pull-in phenomenon synchronously), causes synchronous rotation.At start-up period, by converter INV2 and INV3 supply low-frequency ac power, draw in phenomenon synchronously and take place, the speed of the rotating field of stator 22 remains at low levels simultaneously.When setting up synchronous rotation, there is not induced-current to flow through the cage type conductor 21b of rotor 21, so can not produce heat, saved energy.And in traditional induction conductivity, always have an induced-current to flow through rotor, thereby can produce heat.
By the way, drawing rollers 3 to 5 rotate to realize given draw ratio, and ring rail 41 repeats lifter motion to realize given layer pitch, and spindle 40 rotates to realize the given twist.
When synchronous motor M2 and M3 begin to rotate, if the magnetic pole of rotating field is different with the magnetic pole of the permanent magnet 21C of rotor 21, and the rotating field 22A of stator 22 is in the place ahead (Fig. 7 B) of magnetic field 21A of the permanent magnet 21C of rotor 21 on the direction of rotation Y opposite with normal direction of rotation X, because the permanent magnet 21C of rotor 21 is towards the magnetic attachment effect of the rotating field of stator 22, rotor 21 may be along the backward rotation of normal direction of rotation.Because the speed reducing ratio in rear roller and middle roller driver element 7 is very big, the counter-rotating of the motor in rear roller and middle roller driver element 7 is also not serious, and first break draft roller 3 and middle drawing rollers 4 basically can backward rotation.On the other hand, because as mentioned above, the speed reducing ratio of front roller driver element 6 is very little, so the counter-rotating of motor is serious in front roller driver element 6.Front draft roller 5 reverse turns can produce a undesirable or wrong drawing-off to a kind of like this degree between front draft roller 5 and middle drawing rollers 4.
Yet according to the present invention, ratchet 15 and ratchet 17 engagements, driving shaft 9 can not backward rotation, so front draft roller 5 can backward rotation, the loose danger of fibre bundle of having avoided front draft roller 5 backward rotation to cause.When machine start, 4 beginnings of middle drawing rollers are rotated along normal direction, and front draft roller 5 stops, and loose (among Fig. 6 shown in the P2) of fibre bundle may take place between front draft roller 5 and middle drawing rollers 4.Yet, with in the prior art in when drawing rollers 4 normal rotation and front draft roller 5 backward rotation loose (among Fig. 6 shown in the P1) of fibre bundle compare, the loose P2 amount of fibre bundle is less among the present invention.Synchronous motor M2 in the front roller driver element 6 rotates along normal direction subsequently, rotates on normal direction thereby drive front roller 5.Like this, in drawing-off portion 2, carry out the drawing-off operation.Because as mentioned above, lax very little in the fibre bundle is because the loose danger that produces drawing-off that do not expect or mistake is very little.Need not doubt, synchronous motor M2 had rotated one section preset time along normal direction after, ratchet 17 turned back to its holding fix A.
In the above-described embodiments, comprise a ratchet 15 and a mechanism of the ratchet 17 that can mesh with it is used as back stop, but can revise back stop by illustrated embodiment.For example, can between driving shaft and frame, use a known one-way clutch, can only rotate in normal direction to allow driving shaft.
Equally, in the above-described embodiment, in fine spining machine, because rear roller and middle roller driver element 7 have bigger speed reducing ratio, so in rear roller and middle roller driver element 7, back stop is not set.If but driver element 7 from synchronous motor M3 to first break draft roller 3 and the speed reducing ratio of drawing rollers 4 less, and from the counter-rotating that above-mentioned permanent magnet 21a transmits the synchronous motor M2 that comes make first break draft roller 3 and drawing rollers 4 backward rotation and when producing that do not expect or wrong drawing-off, also a back stop can be set in rear roller and middle roller driver element 7.In this case, might be that front draft roller 5 rotates in normal direction, and drawing rollers 4 backward rotation in preventing.Even if in this case, and back stop is not set, makes front draft roller 5 normal rotation and middle drawing rollers 4 counter-rotational situations are compared, among the present invention in fibre bundle between drawing rollers 4 and the front draft roller 5 also be stretched less.Therefore in this case, alleviated that do not expect or wrong drawing-off.When front roller driver element 6 and back, when middle roller driver element 7 all is respectively equipped with synchronous motor, as the drive source in the present embodiment, can be with the drive motor of a servomotor as rear roller and middle roller driver element 7.
As mentioned above, according to the present invention, a drawing rollers driver element has used a synchronous AC motor with permanent magnet, and the advantage of making is to have lower energy consumption and thermal losses like this.Owing to be provided with permanent magnet, the motor of the above-mentioned type may reverse when starting.Comprise this synchronous motor be used for drive the back stop that the drive unit of drawing rollers is provided with and prevented the drawing rollers backward rotation, therefore compare with the situation that back stop is not set, fibre bundle between the drawing rollers of above-mentioned drawing rollers and another normal rotation is stretched or is loose less, thereby has reduced that do not expect or wrong drawing-off.
Because ratchet in back stop and ratchet are thrown off when frame turns round, always compare with ratchet and suppressed noise with the situation of ratchet engaged.
Claims (9)
1. be used to drive a kind of drive unit of a series of drawing rollers in frame, said drive unit comprises:
Be used to drive a series of driver elements of said drawing rollers, each said driver element has a variable-speed motor and a transmission mechanism, and to drive at least one drawing rollers, said transmission mechanism is operably connected to said variable-speed motor;
One of them variable-speed motor comprises a synchronous AC motor, and this synchronous AC motor has the permanent magnet that is arranged on wherein; And
One back stop, it is arranged in the transmission mechanism that is operably connected to described synchronous motor, to prevent the backward rotation of corresponding drawing rollers, when the starting synchronous motor, because the effect of permanent magnet in the synchronous motor, said synchronous motor backward rotation, thus the backward rotation of aforementioned drawing rollers caused.
2. be used to drive a kind of drive unit of a series of drawing rollers in frame, said drive unit comprises:
Be used to drive a series of driver elements of drawing rollers, each said driver element has a variable-speed motor and a transmission mechanism, and to drive at least one drawing rollers, said transmission mechanism can be connected to said variable-speed motor with grasping;
One of them variable-speed motor comprises a synchronous AC motor, and this synchronous AC motor has the permanent magnet that is arranged on wherein; And
One back stop, it is arranged in the transmission mechanism that is operably connected to described synchronous motor, to prevent the backward rotation of corresponding drawing rollers, when the starting synchronous motor, because the effect of permanent magnet in the synchronous motor, said synchronous motor backward rotation, thereby caused the backward rotation of aforementioned drawing rollers, said transmission mechanism is operably connected to said synchronous motor, its speed reducing ratio is set like this, makes said corresponding drawing rollers meeting backward rotation to the degree that produces a drawing-off of not expecting.
3. a kind of drive unit as claimed in claim 1 or 2 is characterized in that, said transmission mechanism is operably connected to said synchronous AC motor, and it comprises a gear that is connected to corresponding drawing rollers one end, and the other end of these drawing rollers is free to rotate.
4. a kind of drive unit as claimed in claim 1 or 2 is characterized in that, said back stop comprise the ratchet that can rotate with corresponding drawing rollers and one can with the ratchet of this ratchet engaged.
5. a kind of drive unit as claimed in claim 4 is characterized in that, said transmission mechanism is operably connected to said synchronous AC motor, and it comprises an axle, and said ratchet is connected in this axle.
6. a kind of drive unit as claimed in claim 5, it is characterized in that, said ratchet is supported on the frame swingably, said back stop further comprises an actuator that moves said ratchet swingably, when the drawing rollers normal rotation, ratchet and ratchet are thrown off and are remained on a holding fix, when drawing rollers stop, and ratchet and ratchet engaged and enter operating position.
7. a kind of drive unit as claimed in claim 1 or 2, it is characterized in that, said drawing rollers comprise first break draft roller, middle drawing rollers and front draft roller, and said driver element comprises first driver element and second driver element that is used to drive the front draft roller that are used for driving first break draft roller and drawing rollers.
8. a kind of drive unit as claimed in claim 7 is characterized in that, said back stop is arranged in the transmission mechanism of the driver element that drives the front draft roller.
9. a kind of drive unit as claimed in claim 1 or 2 is characterized in that said back stop comprises an one-way clutch, only allows the normal rotation of drawing rollers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP115966/1999 | 1999-04-23 | ||
| JP11115966A JP2000303269A (en) | 1999-04-23 | 1999-04-23 | Draft roller-driving device in spinning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1273287A true CN1273287A (en) | 2000-11-15 |
Family
ID=14675554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00106797 Pending CN1273287A (en) | 1999-04-23 | 2000-04-21 | Driving device for driving and drawing rollers in frame |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1048762A3 (en) |
| JP (1) | JP2000303269A (en) |
| CN (1) | CN1273287A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445443C (en) * | 2001-12-14 | 2008-12-24 | 里特机械公司 | Spinning machines |
| CN1900394B (en) * | 2005-07-19 | 2010-06-23 | 株式会社丰田自动织机 | Draft apparatus in spinning machine and control method of the same, and ring spinning frame having the apparatus |
| CN104862831A (en) * | 2015-06-17 | 2015-08-26 | 南通市金山纺织有限公司 | Roller transmission device of spinning frame |
| CN109825907A (en) * | 2019-03-13 | 2019-05-31 | 巢湖雅戈尔色纺科技有限公司 | Alternation drawing-off four-way spinning apparatus and the spinning method for genuine for becoming branch no-load voltage ratio change twisted yarn |
| CN114351309A (en) * | 2021-12-06 | 2022-04-15 | 广东职业技术学院 | Preparation method of equal linear density yarn with variable blending ratio |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108385217A (en) * | 2018-05-10 | 2018-08-10 | 葛陈鹏 | Digitally-controlled spinning frame headstock driver |
| CN114323942A (en) * | 2021-12-24 | 2022-04-12 | 盐城金科亚麻纺织有限公司 | Cotton sliver traction stretching device for flax preparation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55500749A (en) * | 1978-09-29 | 1980-10-09 | ||
| IN172476B (en) * | 1988-02-12 | 1993-08-21 | Rieter Ag Maschf | |
| DE4140984C2 (en) * | 1991-12-12 | 1997-09-25 | Truetzschler Gmbh & Co Kg | Drafting system for a spinning machine, in particular a regulating line for cotton |
-
1999
- 1999-04-23 JP JP11115966A patent/JP2000303269A/en active Pending
-
2000
- 2000-04-20 EP EP00108039A patent/EP1048762A3/en not_active Withdrawn
- 2000-04-21 CN CN 00106797 patent/CN1273287A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445443C (en) * | 2001-12-14 | 2008-12-24 | 里特机械公司 | Spinning machines |
| CN1900394B (en) * | 2005-07-19 | 2010-06-23 | 株式会社丰田自动织机 | Draft apparatus in spinning machine and control method of the same, and ring spinning frame having the apparatus |
| CN104862831A (en) * | 2015-06-17 | 2015-08-26 | 南通市金山纺织有限公司 | Roller transmission device of spinning frame |
| CN104862831B (en) * | 2015-06-17 | 2017-07-21 | 南通市金山纺织有限公司 | Spinning frame roller gear |
| CN109825907A (en) * | 2019-03-13 | 2019-05-31 | 巢湖雅戈尔色纺科技有限公司 | Alternation drawing-off four-way spinning apparatus and the spinning method for genuine for becoming branch no-load voltage ratio change twisted yarn |
| CN109825907B (en) * | 2019-03-13 | 2023-09-19 | 安徽新雅新材料有限公司 | Alternating drafting four-way spinning device and spinning method of variable-count variable-ratio variable-twist yarn |
| CN114351309A (en) * | 2021-12-06 | 2022-04-15 | 广东职业技术学院 | Preparation method of equal linear density yarn with variable blending ratio |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1048762A3 (en) | 2001-01-17 |
| JP2000303269A (en) | 2000-10-31 |
| EP1048762A2 (en) | 2000-11-02 |
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