CN1270241A - Transmission for detaching rollers of combing machine - Google Patents
Transmission for detaching rollers of combing machine Download PDFInfo
- Publication number
- CN1270241A CN1270241A CN 00104907 CN00104907A CN1270241A CN 1270241 A CN1270241 A CN 1270241A CN 00104907 CN00104907 CN 00104907 CN 00104907 A CN00104907 A CN 00104907A CN 1270241 A CN1270241 A CN 1270241A
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- China
- Prior art keywords
- mentioned
- eccentric wheel
- pin joint
- point
- rock shaft
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G19/00—Combing machines
- D01G19/06—Details
- D01G19/26—Driving arrangements
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
In the drive system for the detaching rollers, at a comber, the ratio between the gap of the linkage point (D) of the pull r (10) at the eccentric (8) and its rotary axis (B) to the gap between the center (C) of the rocker (11) and the rotary axis (B) o the eccentric (8) is >= 3.5. The ratio between the two gaps is pref. 4-5. The connecting line between the linkage point (G) of the coupling (16) at the rocker (11) and from the center (C) of the rocker (11) to the linkage point (J) of the support lever (14) at the rocker (11) forms an included angle of >= 18 degrees and pref. 20-35 degrees .
Description
The present invention relates to the transmission device of the detaching roller of combing machine.
In the combing machine combing process, the wadding of wool warp thread (calling " fiber looped pile " in the following text) that will be protruded from nipper mechanism by the combing sector of the circular comb that is installed in rotation on nipper below combs out.Described nipper mechanism is mounted to and can swings.
Above-mentioned nipper is finished on the rear positions of noil looped pile closed at it.When nipper towards the detaching roller that is rotatably mounted when moving forward, nipper opens, the fiber hair snare of the protrusion that combing is gone out is to the fibroreticulate warp thread that stretches out from detaching roller, in this process, the fiber looped pile arrives the active region of going up comb.In the comb clamping process, detaching roller is to carrying out the periodic step motion, and matches with corresponding transmission mechanism and finish this motion.In case the fiber pile-warp that stretches out from nipper drops on partly on the fiber hair hoop net that is sent back by detaching roller, detaching roller just carries out counter motion immediately.In this process, the fiber pile-warp is held, and arrives the clamp point of detaching roller.When detaching roller further rotates, just the fiber on the lap end is filled out yarn and is pulled away from the wadding of wool that stretches out from nipper, and with fibroreticulate warp thread amalgamation (in other words and close) together.The fiber of extracting out is filled out yarn and is pulled through upward comb pin of a row, therefore, except being undertaken the combing work by above-mentioned circular comb, also further removes staple fibre, hair knot and other foreign material.In case isolated fiber is filled out yarn and fibroreticulate warp thread amalgamation together, detaching roller is upside down turn direction once more immediately just, and the fiber web warp thread that newly forms is shifted to nipper mechanism once more a little so that carry out next step amalgamation process.
W.K1ein goes up the interaction that the motor program of nipper, detaching roller and combing mechanism is shown with way of illustration for the 31st page at document " Die Kurzslapelspinnerei " (staple fibre weaving) the 3rd volume (ISBN 3-908.059-01-1) of Textile Institute, and at the 8-10 page or leaf comb clamping program has been described in more detail.
Swiss Patent CH-PS 499635 discloses the mechanical driving device that detaching roller carries out the periodic step motion, and described detaching roller still is used in the combing machine of prior art by this way, and with per minute nearly 350 bites (n.p.m) carry out work.
Thereby the performance that therefore requires the raising combing machine increases its clamping and counts.
Adopt the gear drive of the existing structure shown in the CH-PS 499635 to have certain limitation, can not reach and carry out increasing clamping from machinery under the required acceleration of periodic step motion at detaching roller and count, this means, increasing acceleration force in any case, mechanical stress (being the mechanical force to the bearing of mechanical part specifically) will be too high, and noise also can increase to too high value.
In order to address the above problem, once to do and made great efforts to scheme replacing simple mechanical driving device with single electric transmission machanism.For example, at European patent EP-PS 374 723 this way was disclosed once.But, have found that, though such transmission device has some advantages aspect adjusting, in order to increase the clamping very high motor of required power of counting.Like this, improved cost on the one hand, needed complicated control system on the other hand again, could guarantee other relevant parts synchronous operations with combing process.According to since 1971 by the known way of CH-PS 499635 can be particularly by alleviate single part for example the weight of nipper, detaching roller etc. increase clamping and count, still, according to existing know-how.Can not under the situation that does not reduce mechanical strength, further alleviate above-mentioned weight more.
Thereby the objective of the invention is to seek a kind of not only reliable but also economic increase combing machine clamping counts and improves the way of combing machine performance.
Because the whole world has all adopted the reliable way of the device (CH-PS499635) of used simple mechanical transmission, so must make great efforts to seek can improve the way of combing machine performance on the basis of above-mentioned way.
Fit calculating by many computer moulds and find, in a kind of particular design the ratio of the length of connecting rod in the eccentric wheel district.Even counting, the increase clamping also might reduce the acceleration of detaching roller.
This just means, counts thereby increase clamping by the performance of selecting length of connecting rod can improve combing machine according to correlation effectively on the basis of current use system.
In order to achieve the above object, the existing proposition is chosen to be the pin joint of eccentric wheel upper connecting rod and the ratio of the distance between the distance between its run-on point and rock shaft central point and the eccentric run-on point greater than 3.5.
Have above-mentioned distant seat to the drive area in the long eccentric wheel of the bar of subsequently connecting rod, control lever and pull bar and as an amplifier, work, so that under the situation of the kinematics set point of the periodicity step motion of observing relevant detaching roller, transmit driving force best.Have found that, when the distance ratio of above-mentioned claim regulation is 4～5, can advantageously solve the above problems.
When the line of tie-point from the connecting rod tie-point on the rock shaft to rock shaft two cramp bars with from the center of rock shaft when the line of the tie-point of its cramp bar constitutes greater than 180 ° angle, the reduction of accelerating curve is had favorable influence again.
Propose above-mentioned dwell angle and be preferably 20 °～35 °.
From shown in the following accompanying drawing and the explanation embodiment can further find out more advantages of the present invention, in the accompanying drawing:
Fig. 1 is the vertical sectional view with transmission device of the eccentric wheel of inhomogeneous driving and differential gearing;
Fig. 2 is the sectional view of the transmission device of Fig. 1 along the II-II line;
Fig. 3 is the simple plan view of the transmission device of Fig. 1;
Fig. 4 is the illustrating of motor program of detaching roller.
As shown in Figure 1, the circular comb axle 1 that is fixed on the frame 7 of combing machine is driven by the gear 3 that is installed in the gear 26 on the power transmission shaft 25 and be installed on the circular comb axle 1 by power transmission shaft 25, and power transmission shaft 25 is driven by the motor (not shown) by v-shaped pulley 24.An adjustment disk 4 that is connected with gear 3 by set screw 6 is set on above-mentioned circular comb axle 1, and this adjustment disk 4 is hinged by pin 5 and pull bar 10 (also can see Fig. 2) on tie-point E.Can find out also that from Fig. 2 and 3 pull bar 10 works by 9 pairs of eccentric wheels 8 of the pin on the pin joint D.If driving eccentric wheel 8 by above-mentioned circular comb axle 1 by adjustment disk 4 and pull bar 10 rotates, this rotation (as illustrated in fig. 1 and 2) just can be delivered to by pin 15 by eccentric wheel 8 and be hinged on the rock shaft 11 on the pin joint J of cramp bar 14 so, above-mentioned cramp bar 14 is installed on the nipper power transmission shaft 22, and above-mentioned distant seat 11 then is hinged with connecting rod 16 by pin 12 point (pin joint G) relative with the J point on its circumference.Described connecting rod 16 is hinged on pin joint F by pin 19 and control lever 17 again, and above-mentioned control lever 17 is rigidly connected with the axle 20 of differential gearing 21.As can be seen from Figure 1, the bridge shape bar 30 of differential gearing 21 is also accepted from a rotation identical with the average rate rotation direction of gear 27 that is installed in the gear 27 on the circular comb axle 1 with bridge joint wheel 30 by being set in place in the idler gear on the pin on the frame 7 29 28, this rotation passes to the planetary gear 32 that is connected with bridge shape bar 30 ' in differential gearing 21, this planetary gear 32 be fixedly mounted on the differential gearing axle 20 and with central gear 31 that planetary gear 32 ' is connected on roll, and by being installed in rotation on the central gear 33 that is connected with gear 34 on the differential gearing axle 20 and being installed in gear 35 outside the differential gearing 21,36 and 37 further pass to detaching roller 23 with above-mentioned rotation.
The transmission of eccentric wheel 8 makes rock shaft 11 carry out eccentric rotary, this rotation is delivered on the control lever 17 that is fixed on the pin joint F by the connecting rod 16 that is fixed on by pin joint G place on the rock shaft 11, thereby also be delivered on the axle 20 of differential gearing 21, and be delivered in the same way on the detaching roller 23, the uniform rotation that produces equidirectional with circular comb axle 1 is superimposed.
Line V between the pin joint G of cramp bar pin joint J and rock shaft 11
GLine between the central point of (see figure 3) and cramp bar pin joint J and rock shaft 11 constitutes sharp angle, because rock shaft 11 can rotate by the pin joint K of the cramp bar 14 on nipper power transmission shaft 22 on cramp bar pin joint J, so the central point C of rock shaft 11 is moved when the track Kz with central point B moves at eccentric wheel 8, consequently pin joint G is along elliptoid track E
BMove, and pin joint G is along ellipticity track E
BThe mobile pin joint F that makes along curve K
SMove (because pin joint G is connected with pin joint F by connecting rod 16), therefore control lever is swung around run-on point H.Therefore can be with ellipticity track E
BBe called junction curve.
Can find out further also that from Fig. 3 the center A of circular comb axle 1 does not overlap with the center B of eccentric wheel 8, Here it is, and why its pin joint E will be at track K when pull bar 10 rotates
EThe central point A that goes up around circular comb axle 1 rotates, and its pin joint D is then at track K
DGo up the reason of rotating around the central point B of eccentric wheel 8.Therefore, eccentric wheel B is subjected to uneven driving.Because the central point C that the rotatablely moving of cramp bar 14 makes rock shaft 11 is at track K
ZGo up with central point B (pivot center of eccentric wheel 8) and move, pin joint G is then at ellipticity track E
BGo up to move, and make the generation of G point pass through G from G ' " and G return the circulation of G '.For example, pin joint D in the position of D ' or pin joint E at the central point C of the position of E ' and rock shaft 11 at the pin joint J of the position of C ' and cramp bar 11 position and pin joint G corresponding in the position of G ' (all dotting it) at J '.Therefore, pin joint G is at ellipticity track E
BThe G ' that passes through-G district is by the mobile rapid return motion (echo-plex) that causes detaching roller 23 of pin joint F and control lever 17, at G "～G district then causes travel forward (separation of fibrous material) of detaching roller 23, in G ～G ' district detaching roller 23 is deadlocked.
Pin joint F is at track K
SGo up from F to F " move with pin joint G at ellipticity track E
BGo up from G ' to G " the mobile phase correspondence, thereby make control lever 17 carry out rapid movement, this just causes that detaching roller 23 carries out backward rotation continuously, arrives G until pin joint G " till.Because pin joint G is further from G " move to G , so make pin joint F at track K
SGo up from F " position returns the F position, and 17 of control levers return in opposite direction, arrive ellipticity track E thereby detaching roller is moved forward until pin joint G
BOn position G till, this moment, pin joint F also arrived track K
SOn position F.When pin joint G at ellipticity track E
BOn G and G ' between when mobile, pin joint F rests on its position of ordering near F, therefore be actually standstill state corresponding to control lever 17, thereby also corresponding to the standstill state of differential gearing axle 20, in addition, rotate for the additional stack that acts on differential gearing 21 and the detaching roller, also corresponding to the standstill state of detaching roller 23.For pin joint F is rested on the F position, must make pin joint G on an approximate track, move to ellipticity track E around pin joint F
BOn G G ' part.As shown in Figure 3, to be equivalent to one be the ellipticity track E of the track at center with pin joint F for G G ' part
BWhen pin joint E at track K
EGo up when the central point A of circular comb axle 1 rotates greater than 180 °, the pin joint D of pull bar 10 will be owing to the effect of the eccentric wheel 8 that is subjected to inhomogeneous driving at track K
DLast rotation is less than 180 °, and pin joint G is then at ellipticity track E
BG to G ' partly (less than 180 °) move, consequently control lever 17 will enter standstill state greater than 180 ° owing to the combing machine jaw.In illustrated transmission device, the dead time of pin joint F will extend to beyond 180 ° of combing machine jaw owing to eccentric wheel 8 is subjected to inhomogeneous driving, and this point is inaccessible in the simple crank mechanism that the center of the center of circular comb axle 1 and eccentric wheel 8 coincides.
Therefore, since eccentric wheel 8 around track K
ZThe central point C of the rock shaft 11 of last swing rotates and the tracks of the pin joint G that produces makes pin joint F at track K
SOn F and F ' position between move back and forth, this moves through control lever 17 and differential gearing axle 20 is delivered on the differential gearing 21, and be delivered to subsequently on the detaching roller 23, the result makes them carry out counter motion fast, travel forward then, and (be equivalent to pin joint G in the F position at ellipticity track E by pin joint F
BOn G and the route between the G ') on dead time and enter standstill state.Regulate the time started that detaching rollers 23 carry out counter motion respectively, travel forward and enter standstill state by the set screw on the adjustment disk 46, therefore can make G ', G " and G point displacement and be fixed to required degree.
Also can realize influence as follows, promptly not only press the position of angular adjustment tie-point E on adjustment disk 4 with respect to the travelling gear 3 of circular comb axle 1 but also by the length of change pull bar 10 or with length-adjustable pull bar 10 to the periodic step motion.Because the position of tie-point E on adjustment disk 4 of compensation linkage 10 is so can change the throw of crank of eccentric motion.So just can control speed ratio substantially.Declaratives in corresponding US No.3584346 with and Figure 4 and 5 the principle of above-mentioned adjusting is also disclosed.
Fig. 4 illustrates the accelerating curve (m/s of combing machine roller nip working time
2).The combing machine jaw is divided into 40 calibration points, that is to say, circular comb changes a complete circle with constant speed in 40 above-mentioned calibration.
Be shown in the accelerator of separating roller when the combing machine jaw with transmission device of the present invention is worked by 400 bites of per minute with the curve table shown in the solid line among the figure.
Chain-dotted line among the figure is the accelerating curve of the detaching roller of prior art by 350 bite work of per minute.
Can find out by above-mentioned curve, during to the 17th calibration point, acceleration has risen to peak, and separation and amalgamation process begin approaching when the 16th calibration point, detaching roller begins backward rotation, so as fiber to be filled out that yarn is taken out out and with formed fiber web layer amalgamation together.When the 24th calibration point, separation process is roughly finished.
As shown in the figure, be by the difference of the acceleration between the curve (chain-dotted line) of the curve (solid line) of the device of claim of the present invention regulation and prior art: on be limited to x, time be limited to y, although curve of the present invention is by 400 support point work of per minute.
This just means, because the gearratio that the transmission mechanism that designs by the present invention has particular design, so can reduce the required acceleration of detaching roller, and therefore make acceleration force reduce to minimum simultaneously.This just can not make the mechanical force that acts on driving member and the bearing thereof count above increasing clamping under the situation of common level.
Claims (4)
1. transmission device that is used for the detaching roller (23) of combing machine with differential gearing (21), a main shaft of above-mentioned differential gearing can make the transmission device of this main shaft uniform rotation be connected with one, its another root main shaft is connected with the controlling organization that can produce additional rotation, an eccentric wheel (8) is installed on frame, this eccentric wheel is by pull bar (10) and crank (A, E) be connected, above-mentioned crank can make eccentric wheel that uneven rotation takes place under constant rotating speed, and be installed into and depart from eccentric run-on point (B), above-mentioned eccentric wheel (a 8) supporting rock shaft (11), this rock shaft is supported on the circumferential point (J) of cramp bar (14) in hinged mode, above-mentioned cramp bar (14) is installed in rotation on the frame, and the rock shaft (11) that the motion that eccentric wheel gives is transmitted in above-mentioned being used to is connected by the control lever (17) of a connecting rod (16) with the additional rotation of above-mentioned another root main shaft (20).It is characterized in that the ratio of the distance between the run-on point (B) of the pin joint (D) of the pull bar (10) on the above-mentioned eccentric wheel (8) and the central point (C) of distance between its run-on point (B) and rock shaft (11) and eccentric wheel (8) is chosen to be greater than 3.5.
2. according to the transmission device of claim 1, it is characterized in that the ratio of the distance between the central point (C) of the pin joint (D) of the pull bar (10) on the above-mentioned eccentric wheel (8) and the distance between its run-on point (B) and above-mentioned rock shaft (11) and the run-on point (B) of eccentric wheel (8) preferably elects 4～5 as.
3. according to the transmission device of claim 1～2, it is characterized in that the line of the pin joint (J) of the cramp bar (14) on from the pin joint (G) of the connecting rod (16) on the above-mentioned rock shaft (11) to this rock shaft (11) and the line of pin joint (J) of cramp bar (14) on from the central point (C) of above-mentioned rock shaft (11) to this rock shaft (11) constitute one greater than 18 ° angle.
4. according to the transmission device of claim 3, it is characterized in that above-mentioned closed angle is preferably 20 °～35 °.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH19990612/1999 | 1999-03-31 | ||
| CH61299 | 1999-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1270241A true CN1270241A (en) | 2000-10-18 |
| CN1179075C CN1179075C (en) | 2004-12-08 |
Family
ID=4191050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001049070A Expired - Fee Related CN1179075C (en) | 1999-03-31 | 2000-03-30 | Transmission for detaching rollers of combing machine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1043430B1 (en) |
| CN (1) | CN1179075C (en) |
| DE (1) | DE50005372D1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007093120A1 (en) * | 2006-02-14 | 2007-08-23 | Kunshan Kaigong Mechanism Co., Ltd. | Drive method for detaching roller of comber |
| CN101554716B (en) * | 2008-04-08 | 2012-12-12 | 里特机械公司 | Drive for nipper device of combing machine |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2108721A1 (en) * | 2008-04-08 | 2009-10-14 | Maschinenfabrik Rieter Ag | Drive for detaching rollers in a combing machine |
| JP5609530B2 (en) * | 2010-10-22 | 2014-10-22 | 株式会社豊田自動織機 | Comb detaching roller operation setting device |
| CH714583A1 (en) * | 2018-01-23 | 2019-07-31 | Rieter Ag Maschf | Drive device for a combing machine. |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1685575C3 (en) * | 1967-09-30 | 1973-11-22 | Maschinenfabrik Rieter Ag., Winterthur (Schweiz) | Drive device for tear-off rollers on a flat comb machine |
| JPS517225A (en) * | 1974-07-13 | 1976-01-21 | Toyoda Automatic Loom Works | Koomaniokeru detatsuchinguroorano kudohohonarabini sochi |
| JP2642201B2 (en) * | 1989-09-08 | 1997-08-20 | 株式会社原織機製作所 | Driving device for detaching roller in comber |
| DE19612808A1 (en) * | 1996-04-02 | 1997-10-09 | Cetex Chemnitzer Textilmaschin | Textile comber's detaching rollers' drive adjustable while running |
-
2000
- 2000-03-02 DE DE50005372T patent/DE50005372D1/en not_active Expired - Fee Related
- 2000-03-02 EP EP20000810180 patent/EP1043430B1/en not_active Expired - Lifetime
- 2000-03-30 CN CNB001049070A patent/CN1179075C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007093120A1 (en) * | 2006-02-14 | 2007-08-23 | Kunshan Kaigong Mechanism Co., Ltd. | Drive method for detaching roller of comber |
| CN101554716B (en) * | 2008-04-08 | 2012-12-12 | 里特机械公司 | Drive for nipper device of combing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1043430A2 (en) | 2000-10-11 |
| DE50005372D1 (en) | 2004-04-01 |
| EP1043430B1 (en) | 2004-02-25 |
| EP1043430A3 (en) | 2001-02-21 |
| CN1179075C (en) | 2004-12-08 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041208 |