CN102787400B - Differential anti-overlap micromotion mechanism of rotor spinning machine - Google Patents
Differential anti-overlap micromotion mechanism of rotor spinning machine Download PDFInfo
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- CN102787400B CN102787400B CN201210306951.2A CN201210306951A CN102787400B CN 102787400 B CN102787400 B CN 102787400B CN 201210306951 A CN201210306951 A CN 201210306951A CN 102787400 B CN102787400 B CN 102787400B
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- fine motion
- eccentric
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- gear
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Abstract
The invention relates to a differential anti-overlap micromotion mechanism of a rotor spinning machine. The differential anti-overlap micromotion mechanism comprises a horizontally-arranged micromotion rod, wherein a right end of the micromotion rod penetrates through a wall plate and an end head of the micromotion rod is provided with an elastic tension device; the left side of the micromotion rod is provided with a micromotion seat, the micromotion seat is installed with a reducer and a left gear and a right gear which are arranged in parallel and mutually engaged; the gear coaxially connected with the reducer is a driving gear and the other gear is a driven gear; end faces of the two gears on the same side are respectively provided with a driving eccentric boss with an eccentric arm of M and a driven eccentric boss with the eccentric arm of M'; a fixed seat is installed at a top end of the micromotion seat on the left side upper part of the left gear, and the lower part of the fixed seat is connected with a micromotion belt; the micromotion belt is intertwined from the lower end of the left eccentric boss to the upper end of the right eccentric boss and is fixedly connected with the left end of the micromotion rod.
Description
Technical field
The novel yarn micromotion mechanism that draws that the present invention relates to a kind of rotor spinning machine, belongs to spinning machinery equipment technical field.
Background technology
In rotor spinning machine spinning process, fiber, after revolving cup twisting resultant yarn, through the resistance twist device in navel and doffing tube, is drawn by delivery roller and pressure yarn roller, finally drives spool to be wound into a yarn by take up roll.In the middle of doffing tube outlet and delivery roller, there is one to draw yarn micromotion mechanism.As shown in Figure 1, this fine motion Yarn guide mechanism has a reductor 1, and a drive 2 is housed on its axle, has the eccentric orfice that an eccentric throw is L on the end face of drive, be used for connecting oscillating bearing 3, the other end of oscillating bearing and the fine motion bar 5 through pilot hole 4 link together.While drawing the work of yarn micromotion mechanism, reductor rotates with drive, one end of oscillating bearing is around the center rotating of drive, the other end moves with fine motion bar, due to the constraint of pilot hole 4, fine motion bar can only move reciprocatingly in the horizontal direction, and yarn carries out the reciprocation cycle motion of horizontal direction under the drive of fine motion bar simultaneously.The shift reciprocately of yarn forms an amplitude and constant sine curve of cycle with respect to the time, presses the uniform rotation under the drive of delivery roller of yarn roller.As shown in Figure 5, V3 represents yarn and presses the instantaneous velocity of the contact point on yarn roller surface, the angle of speed V3 and vertical direction is α, and V1 represents to press on yarn roller surface the peripheral speed of a bit, and V2 represents that yarn is fine motion yarn guiding speed along pressing the speed on yarn roller axis direction; V3 can regard as V1 and V2 velocity and, α=arctan (V2/V1).Because the speed of delivery roller is certain, therefore pressing the speed of yarn roller is necessarily also that V1 is constant, Fig. 3 is the curve map that the existing reciprocating stroke that draws yarn micromotion mechanism formed with respect to the time, the oscillation cycle of fine motion bar is identical with the cycle period of fine motion guide, and cycle period is that yarn is in the time interval of pressing the same point of yarn roller to contact.。
In a cycle period, fine motion guide stroke S is constant, the time T of each cycle period is identical, so speed V2 of fine motion guide constant (the extreme position speed at reciprocating stroke is ignored) in a cycle period, can show that thus α is constant, under the different cycle periods of fine motion guide, on any one location point of reciprocating stroke, the instantaneous velocity V3 of the contact point of yarn and pressure yarn roller is constant.Therefore,, on the concrete timing node in any two cycle periods, press yarn roller surface all identical with the contacting points position of yarn.
Owing to producing friction at same position point all the time between yarn on timing node identical in cycle period and pressure yarn roller, make to press yarn roller to be subject to heavy wear, and make to press friction on yarn roller to produce groove.So not only reduce the service life of pressing yarn roller, also caused and press yarn roller unbalanced to the grasping force of yarn, had a strong impact on the spinning yarn quality of yarn, brought economic loss to client.。
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of micro-anti-overlapping micromotion mechanism of difference of rotor spinning machine, in guide process, can greatly alleviate yarn to pressing the wearing and tearing of the same contact point in yarn roller surface, extend and pressed the service life of yarn roller, and then ensured the spinning yarn quality of yarn.
For achieving the above object, technical solution of the present invention is as follows:
The micro-anti-overlapping micromotion mechanism of difference of rotor spinning machine, comprises through the horizontally disposed fine motion bar of pilot hole, it is characterized in that:
The right-hand member of described fine motion bar is through wallboard, on its termination, be provided with elastic stretching device, the left side of fine motion bar is provided with fine motion seat, on described fine motion seat, be provided with that reductor and left and right are arranged side by side and intermeshing two gears, what be wherein connected with rotating shaft with reductor is driving gear, another gear is driven gear, and on the end face of the same side of two gears, being separately installed with eccentric throw is the eccentric boss of active of M and the driven eccentric boss that eccentric throw is M '
The fine motion seat top of the left side top of left side gear is provided with holder, and holder below is connected with fine motion band, and described fine motion band is wound to the upper end of the eccentric boss in the right and is fixedly connected with the left end of fine motion bar from the lower end of the eccentric boss that is positioned at the left side.
As further improvement, the number N of teeth of described driving gear is different with the number N of teeth ＇ of driven gear, and initiatively the eccentric throw of eccentric boss and driven eccentric boss is different.
Further, the scope of the number N of teeth of described driving gear is 20≤N≤100, and the scope of the number N of teeth ＇ of driven gear is 20≤N ＇≤100.
Further again, the scope of the eccentric throw M of the eccentric boss of described active is 0 ﹤ M≤10mm, and the scope of the eccentric throw M ' of driven eccentric boss is 0 ﹤ M ＇≤10mm.
As preferably, the eccentric throw of the eccentric boss of described active is 2mm≤M≤6mm, eccentric throw 4≤M ＇≤8mm of driven eccentric boss.
As optimal way, described elastic stretching device is made up of spring and the end cap that is pressed on both ends of the spring, and its left end cap is installed on wallboard, and right end cap is installed on fine motion bar.
According to actual needs, described driving gear is positioned at the left side, and driven gear is positioned at the right.Or,
Described driven gear is positioned at the left side, and driving gear is positioned at the right.
As preferred version, described fine motion band is flexible-belt or steel wire rope.
As preferred version, the eccentric boss of described active and driven eccentric boss be shaped as cylinder boss or cam boss.
The course of work of the present invention is, reductor rotarily drives driving gear rotation, the driven gear being engaged with rotates thereupon, in the rotation process of two gears, be separately positioned on two eccentric boss of the active on gear and driven eccentric boss and also synchronously rotate, fine motion band is under the rotary action of two boss, pull fine motion bar to do horizontal reciprocating movement, due to the effect of elastic stretching device, in fine motion bar reciprocating motion process, fine motion band remains tensioning state.
Operation principle of the present invention and beneficial effect are as follows:
Draw compared with yarn micromotion mechanism with existing, because the eccentric throw of the eccentric boss of active and driven eccentric boss is different, the number of teeth difference of two gears, the oscillation cycle of fine motion bar is no longer identical with the cycle period of fine motion guide, and the cycle period of fine motion guide is far longer than the oscillation cycle of fine motion bar, in the different oscillation cycle of fine motion bar, due to its reciprocating stroke, y constantly changes, because the time T of oscillation cycle is constant, so fine motion yarn guiding speed V2 changes, can show that by α=arctan (V2/V1) α changes, the instantaneous velocity V3 that is the contact point of yarn and pressure yarn roller also changes, thereby make in adjacent several oscillation cycles, pressing on yarn roller surface is all not identical with the some position of yarn contact.Like this in guide process, yarn extended greatly in the interval time of pressing CONTACT WITH FRICTION in the phase same point of yarn roller surface, thereby greatly reduce to press the degree of wear of yarn roller, avoid pressing the generation of yarn roller mantle friction groove, not only improve the service life of pressing yarn roller, also ensured the spinning yarn quality of yarn.
Brief description of the drawings
Fig. 1 is the schematic diagram of existing fine motion Yarn guide mechanism.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the curve map of existing mechanism reciprocating stroke with respect to the time.
Fig. 4 is the curve map of reciprocating stroke of the present invention with respect to the time.
Fig. 5 is yarn and the length velocity relation figure that presses contact point place on yarn roller surface.
In figure: 1-reductor, 2-drive, 3-oscillating bearing, 4-pilot hole, 5-fine motion bar, 5-1, groove, 6-fine motion seat, 6-1, holder, 7-driving gear, the eccentric boss of 7 ＇-active, 8-driven gear, 8 ＇-driven eccentric boss, 9-axle, 10-bearing, 11-fine motion band, 12-elastic stretching device, 12-1, spring, 12-2, left end cap, 12-3, right end cap, 13-wallboard, 14-presses yarn roller, 15-delivery roller, 16-yarn.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, further explain content of the present invention:
As shown in Figure 2, a kind of micro-anti-overlapping micromotion mechanism of difference of rotor spinning machine, comprise through the horizontally disposed fine motion bar 5 of pilot hole 4, the top of fine motion bar is for pressing yarn roller 14 and delivery roller 15, yarn 16 is close in the groove 5-1 on fine motion bar and by delivery roller and presses yarn roller upwards to draw, the right-hand member of described fine motion bar is through wallboard 13, on its termination, be provided with elastic stretching device 12, the left side of fine motion bar is provided with fine motion seat 6, two of reductor 1 and left and right are installed on described fine motion seat to be arranged side by side and pitch wheel, what be wherein connected with rotating shaft with reductor is driving gear, another gear is driven gear, driven gear 8 is arranged on fine motion seat 1 by axle 9 and bearing 10.Shown in Fig. 2 is the left side that driving gear is positioned at driven gear, and driven gear is positioned at the right.Certainly as required, also can adopt driven gear to be positioned at the left side, driving gear is positioned at the mode on the right, arranges that effect is identical for two kinds.
On the end face of the same side of two gears, being separately installed with eccentric throw is the eccentric boss 7 ' of active of M and the driven eccentric boss 8 ' that eccentric throw is M ', the fine motion seat top of the top, left side of left side gear is provided with holder 6-1, holder below is connected with fine motion band 11, and described fine motion band is wound to the upper end of the eccentric boss in the right and is fixedly connected with the left end of fine motion bar from the lower end of the eccentric boss that is positioned at the left side.
The number N of teeth of described driving gear is different with the number N of teeth ＇ of driven gear, and initiatively the eccentric throw of eccentric boss and driven eccentric boss is different.As required, the scope of the number N of teeth of described driving gear adopts 20≤N≤100, and the scope of the number N of teeth ＇ of driven gear adopts 20≤N ＇≤100.The scope of the eccentric throw M of the eccentric boss of described active is 0 ﹤ M≤10mm, and the scope of the eccentric throw M ' of driven eccentric boss is 0 ﹤ M ＇≤10mm.As preferred version, the eccentric throw of the eccentric boss of described active is 2mm≤M≤6mm, eccentric throw 4≤M ＇≤8mm of driven eccentric boss.
Described elastic stretching device 12 is made up of with the end cap that is pressed on both ends of the spring spring 12-1, its left end cap 12-2 is fixedly installed on wallboard 13, fine motion bar right-hand member is through the hole on wallboard, sheathed spring on fine motion bar, then right end cap 12-3 is fixedly connected on fine motion bar, when fine motion bar is during to left movement, fine motion bar drives right end cap to left movement, because left end cap is fixed, (wallboard is fixture to wallboard, position is motionless) on, spring is compressed, and elastic force makes fine motion band keep tensioning state; In the time that fine motion bar moves right, compressed spring restores to the original state gradually, and its elastic force makes fine motion band keep tensioning equally.
Described fine motion band is flexible-belt or steel wire rope.The eccentric boss of described active and driven eccentric boss be shaped as cylinder boss or cam boss.
The course of work of the present invention is, reductor rotarily drives driving gear rotation, the driven gear being engaged with rotates thereupon, in the rotation process of two gears, be separately positioned on two eccentric boss of the active on gear and driven eccentric boss and also synchronously rotate, fine motion band is under the rotary action of two boss, pull fine motion bar to do horizontal reciprocating movement, due to the effect of elastic stretching device, in fine motion bar reciprocating motion process, fine motion band remains tensioning state.
Fig. 3 is existing mechanism fine motion reciprocating stroke with respect to the curve map of time, can find out that fine motion oscillation cycle and cycle period equate, cycle period is yarn in time interval of same point contact of pressing yarn roller.
As shown in Figure 4, draw compared with yarn micromotion mechanism with existing, because the eccentric throw of the eccentric boss of active and driven eccentric boss is different, the number of teeth difference of two gears, the oscillation cycle of fine motion bar is no longer identical with the cycle period of fine motion guide, and the cycle period of fine motion guide is far longer than the oscillation cycle of fine motion bar, in the different oscillation cycle of fine motion bar, due to its reciprocating stroke, y constantly changes, because the time T of oscillation cycle is constant, so fine motion yarn guiding speed V2 changes, can show that by α=arctan (V2/V1) α changes, the instantaneous velocity V3 that is the contact point of yarn and pressure yarn roller also changes, thereby make in adjacent several oscillation cycles, pressing on yarn roller surface is all not identical with the some position of yarn contact.Like this in guide process, yarn extended greatly in the interval time of pressing CONTACT WITH FRICTION in the phase same point of yarn roller surface, thereby greatly reduce to press the degree of wear of yarn roller, avoid pressing the generation of yarn roller mantle friction groove, not only improve the service life of pressing yarn roller, also ensured the spinning yarn quality of yarn.
Claims (10)
1. the micro-anti-overlapping micromotion mechanism of the difference of rotor spinning machine, comprises through the horizontally disposed fine motion bar of pilot hole (4) (5), it is characterized in that:
The right-hand member of described fine motion bar is through wallboard (13), on its termination, be provided with elastic stretching device (12), the left side of fine motion bar is provided with fine motion seat (6), two of reductor (1) and left and right are installed on described fine motion seat to be arranged side by side and pitch wheel, what be wherein connected with rotating shaft with reductor is driving gear, another gear is driven gear, on the end face of the same side of two gears, being separately installed with eccentric throw is the eccentric boss of active (7 ') of M and the driven eccentric boss (8 ') that eccentric throw is M '
The fine motion seat top of the top, left side of left side gear is provided with holder (6-1), holder below is connected with fine motion band (11), and described fine motion band is wound to the upper end of the eccentric boss in the right and is fixedly connected with the left end of fine motion bar from the lower end of the eccentric boss that is positioned at the left side.
2. the micro-anti-overlapping micromotion mechanism of difference according to claim 1, is characterized in that:
The number N of teeth of described driving gear is different with the number N of teeth ＇ of driven gear, and initiatively the eccentric throw of eccentric boss and driven eccentric boss is different.
3. the micro-anti-overlapping micromotion mechanism of difference according to claim 2, is characterized in that:
The scope of the number N of teeth of described driving gear is 20≤N≤100, and the scope of the number N of teeth ＇ of driven gear is 20≤N ＇≤100.
4. the micro-anti-overlapping micromotion mechanism of difference according to claim 2, is characterized in that:
The scope of the eccentric throw M of the eccentric boss of described active is 0 ﹤ M≤10mm, and the scope of the eccentric throw M ' of driven eccentric boss is 0 ﹤ M ＇≤10mm.
5. the micro-anti-overlapping micromotion mechanism of difference according to claim 4, is characterized in that:
The eccentric throw of the eccentric boss of described active is 2≤M≤6mm, eccentric throw 4≤M ＇≤8mm of driven eccentric boss.
6. the micro-anti-overlapping micromotion mechanism of difference according to claim 1, is characterized in that:
Described elastic stretching device (12) is made up of spring (12-1) and the end cap that is pressed on both ends of the spring, and it is upper that its left end cap (12-2) is installed in wallboard (13), and right end cap (12-3) is installed on fine motion bar.
7. the micro-anti-overlapping micromotion mechanism of difference according to claim 1, is characterized in that:
Described driving gear is positioned at the left side, and driven gear is positioned at the right.
8. the micro-anti-overlapping micromotion mechanism of difference according to claim 1, is characterized in that:
Described driven gear is positioned at the left side, and driving gear is positioned at the right.
9. the micro-anti-overlapping micromotion mechanism of difference according to claim 1, is characterized in that:
Described fine motion band is flexible-belt or steel wire rope.
10. the micro-anti-overlapping micromotion mechanism of difference according to claim 1, is characterized in that:
The eccentric boss of described active and driven eccentric boss be shaped as cylinder boss or cam boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210306951.2A CN102787400B (en) | 2012-08-26 | 2012-08-26 | Differential anti-overlap micromotion mechanism of rotor spinning machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210306951.2A CN102787400B (en) | 2012-08-26 | 2012-08-26 | Differential anti-overlap micromotion mechanism of rotor spinning machine |
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| CN102787400B true CN102787400B (en) | 2014-07-23 |
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| SU1657548A1 (en) * | 1986-10-29 | 1991-06-23 | Научно-Исследовательский Институт Хлопчатобумажной Промышленности (Инопредприятие) | Rotor pneumatic mechanic spinning device |
| CN2583122Y (en) * | 2002-10-13 | 2003-10-29 | 经纬纺织机械股份有限公司榆次分公司 | Winding cam box used on cup cross spinning machine |
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2012
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Patent Citations (7)
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|---|---|---|---|---|
| US3046799A (en) * | 1961-02-23 | 1962-07-31 | Gleason Works | Adjustable ratio transmission |
| US3973382A (en) * | 1974-02-12 | 1976-08-10 | Hironori Hirai | Yarn guide device for an open-end spinning machine |
| SU1657548A1 (en) * | 1986-10-29 | 1991-06-23 | Научно-Исследовательский Институт Хлопчатобумажной Промышленности (Инопредприятие) | Rotor pneumatic mechanic spinning device |
| CN2583122Y (en) * | 2002-10-13 | 2003-10-29 | 经纬纺织机械股份有限公司榆次分公司 | Winding cam box used on cup cross spinning machine |
| CN2666939Y (en) * | 2003-12-11 | 2004-12-29 | 钱林根 | Traverse cam box device for revolving rotor spinning machine |
| CN101473076A (en) * | 2006-06-24 | 2009-07-01 | 欧瑞康纺织有限及两合公司 | Spinning machine |
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| Title |
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| 偏心轮挠性构件不等速机构分析;周大川;《上海第二工业大学学报》;19860831(第2期);第1-6页 * |
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| 王明娣 等.对称双偏心轮驱动的高频小负载往复直线运动机构.《机械设计》.2009,第26卷(第7期),第38-39页. |
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Effective date of registration: 20160128 Address after: 200437 room 800, 1605 Quyang Road, Shanghai Patentee after: Shanghai Jie Chun foreign trade Co., Ltd Address before: 201707 No. 123, New Garden Road, Qingpu Industrial Park, Qingpu District, Shanghai Patentee before: Shanghai Chunrui Machinery & Technology Co., Ltd. |
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