CN101415869A - Gripper-bar drive of a weaving machine, and weaving machine having a gripper system - Google Patents
Gripper-bar drive of a weaving machine, and weaving machine having a gripper system Download PDFInfo
- Publication number
- CN101415869A CN101415869A CNA2007800122613A CN200780012261A CN101415869A CN 101415869 A CN101415869 A CN 101415869A CN A2007800122613 A CNA2007800122613 A CN A2007800122613A CN 200780012261 A CN200780012261 A CN 200780012261A CN 101415869 A CN101415869 A CN 101415869A
- Authority
- CN
- China
- Prior art keywords
- rapier
- leading screw
- driving device
- arrow shaft
- described driving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/27—Drive or guide mechanisms for weft inserting
- D03D47/271—Rapiers
- D03D47/273—Rapier rods
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/27—Drive or guide mechanisms for weft inserting
- D03D47/275—Drive mechanisms
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
- Advancing Webs (AREA)
- Discharge By Other Means (AREA)
Abstract
A gripper-bar drive on a weaving machine comprises a screw spindle (1) which is set into a reversing rotational movement via a spur gear mechanism (5) having a drive pinion (5.1) and a drive gearwheel (5.2), cf. the rotational direction arrow (7). The screw spindle (1) has a twin-thread movement thread with the guide grooves (1.1, 1.2). Sliding elements (2.1) which act as sliding blocks and are situated on a coupling element (2) engage into the guide grooves (1.1, 1.2). The coupling element (2) is connected fixedly to the gripper bar (3) which is guided longitudinally movably in a slotted rail (4). The gripper bar (3) carries the gripper (3.1). During the reversing rotation of the screw spindle (1), the gripper bar (3) is moved to and fro in the direction of its longitudinal axis parallel to the centre axis (1.3) of the screw spindle, cf. the direction arrow (6).
Description
The present invention relates to a kind of driving device in rapier of loom, the driving member that reversible rotation drives in this device makes arrow shaft realize a kind of reciprocal back and forth in a longitudinal direction motion, is described by the preorder of claim 1.The driving device in rapier of a this pattern is just recognized by DE 195 38 287C1.The reversibly driven driving member of this rotation is made up of a gear there, and this gear is meshed with a tooth bar that is arranged on the arrow shaft.By gear is alternately rotated on different direction of rotation, arrow shaft is moved back and forth and weft yarn is entered in the shed open of loom.Be second driven arrow shaft on the face-off end of the shed open of opening, this arrow shaft receives the weft yarn end and it is delivered to the face-off limit of the fabric door width of cloth that is produced in the middle of the shed open of opening.What be positioned at the arrow shaft two ends for this purpose is specially designed projectile shuttle, for example resembles projectile shuttle folder or simple, the spring-operated projectile shuttle folder initiatively handled.
Existing arrow shaft is designed to rigidity, and quality is little greatly and simultaneously, and is generally made by fibre reinforced plastics.They have a kind of profile section of U-shape, and this section has a kind of profile of tooth of integrated spline-simulating together.Yet be restricted at travelling gear and the wefting insertion power between the tooth bar on the arrow shaft, this is because stressed face is limited on two flanks that are travelling gear to the maximum when power transmission.
The large-size of gear and tooth bar be with lightweight require conflicting because tooth bar must carry out strong acceleration and braking when current normally used high weaving speed.Therefore restricted wefting insertion power just limited the maximum (top) speed of loom.
In order to improve the power that can transmit, therefore between the profile of tooth on travelling gear and the arrow shaft, designed the cooling device of a kind of dangerous power transmission position according to DE 195 38 287 C1.Although but adopted this measure but still to limit wefting insertion power.Because inevitably friction and the specific pressure between the flank of tooth of travelling gear and tooth bar can not hinder certain wearing and tearing in addition.
Therefore task of the present invention is to propose a kind of arrow shaft transmission device that starts listed pattern, and it can be realized higher wefting insertion power and wear and tear less.
This task according to the present invention by finishing the whole of feature described in the claim 1.
The worm drive that will have leading screw according to the present invention are designed to driving member, this member and an anti-rotation ground setting, be engaged on the connecting elements acting in conjunction in the screw thread of leading screw and therefore drive arrow shaft, therefore than according to the tooth bar transmission of prior art, having more favourable power transmission condition.Worm drive concern than the power transmission that the tooth bar transmission of common usefulness can be more favourable in the past and therefore allow arrow shaft to move more quickly.
If according to first kind of improvement design, leading screw and arrow shaft are arranged mutually and connecting elements is positioned on the end opposite with projectile shuttle of arrow shaft, that just forms a kind of simple especially structure.
In first kind of form of implementation, can all equate on the whole length at leading screw at the lead on the leading screw.But lead can be changed on the length of leading screw.So just can set a kind of special control characteristic to the arrow shaft motion.Even therefore the transmission rotating speed of leading screw is constant on a stroke of arrow shaft, also can realize variable wefting insertion process.Under each stage of wefting insertion, make the arrow shaft velocity adaptive in instantaneous requirement.For example predesignate the arrow shaft acceleration after catching the weft yarn end in this way, thereby in weft yarn, as far as possible little peak stress occurred.The favourable braking of arrow shaft can reach with the corresponding helical pitch of threaded line in the intermediate transport position of weft yarn from first projectile shuttle to the second projectile shuttle.In addition, if weft yarn is discharged by projectile shuttle when it arrives at the opposite side of the fabric door width of cloth that forms, that just may be limited in the speed of the terminal stage of throwing a spear.
Advantageously a kind of motion thread of the screw thread of leading screw, its threaded line has formed gathering sill, in engaging-in this gathering sill of the sliding shoe of connecting elements.Sliding shoe can be fixedlyed connected with connecting elements in the form of implementation with constant lead, for example is designed to one.
Yet especially in having the form of implementation of variable lead, provide movable fix of a kind of sliding shoe on connecting elements.For example sliding shoe can be designed to rolling bearing (W
Alzlager), wherein roll on the side of gathering sill in the outer ring of rolling bearing.
To connect and compose according to another favourable design and to be designed to nut, the screw thread acting in conjunction of the internal thread of this nut and leading screw.If therefore according to another method for designing, this nut has been designed to ball-screw nut, and these balls just lead in the gathering sill of the ball screw type of leading screw as sliding shoe, and it is a kind of accurate especially that just can realize this structural shape, but scheme that can high-mechanic.
According to arrow shaft transmission device of the present invention a kind of especially can high-mechanic and uniformly scheme be to adopt a kind of threads of lead screw of the two-wire that constitutes by gathering sill, its method is: the form that connecting elements is designed to a kind of two point forks, this two point fork surrounds leading screw from arrow shaft, wherein on the end of each prong, be provided with a sliding shoe, arrive in the respective threaded line and two mutual opposed layouts of sliding shoe thereby each sliding shoe is all engaging-in.
Although can high-mechanic, structure be compact especially here, and this structure is to realize by the connecting elements of the fork-shaped with two tips.Also can consider to have the structural shape of two above threaded line in principle, yet wherein for connecting elements, need bigger to length.
The reversible rotation of arrow shaft drives and can spread out of through intermediate gearing from the main shaft of loom, for example passes through a kind of crank gearing or a kind of eccentric wheel.
But can consider advantageously that also a kind of single direct or indirect rotation drives especially a kind of servomotor.Here can also advantageously be provided with additional electronic-controlled installation.
Can realize a shell that surrounds leading screw is combined with the guide rail of a grooving on the structure according to the favourable design of another kind according to the special compact structure pattern of having narrated of driving device in rapier of the present invention, arrow shaft can linear movement guide on this guide rail.Therefore also can realize a kind of structural shape of sealing except the functional advantage of worm drive, the two has just reduced wearing and tearing together and can reach long no-failure life.
The invention still further relates to a kind of a kind of loom that is used for the sheet shuttle system of wefting insertion that has, in this loom, be provided with according to arrow shaft driving of the present invention.
Following according to an embodiment for the invention and other advantage that is had be elaborated again.Accompanying drawing is depicted as:
Fig. 1: a kind of diagrammatic side views according to arrow shaft transmission device of the present invention;
Fig. 2: the cutaway view of Fig. 1 cross section A-A.
Fig. 1 expresses arrow shaft 3, and it has the projectile shuttle 3.1 that is not shown specifically on the one end.This projectile shuttle for example can be projectile shuttle folder or a kind of simple, the spring-operated projectile shuttle folder that is used for a kind of active manipulation of weft yarn.On the other end of arrow shaft 3, rigidly fixed connecting elements 2.
Leading screw 1 is parallel to the longitudinal direction of arrow shaft 3 and arranges.It has a kind of double end motion thread of rectangular thread form in an illustrated embodiment.Threaded line is made of the gathering sill 1.1 and 1.2 that is positioned on the leading screw 1.
Connecting elements 2 is designed to forked, visible Fig. 2.Connector 2 usefulness fork overlap joint is lived leading screw 1.On the end of prong, respectively be provided with a sliding shoe 2.1,2.2.Sliding shoe 2.1,2.2 therefore with respect to the central axis 1.3 of leading screw 1 mutually opposed in a sagittal plane on the diameter.They are engaging-in gathering sill 1.1 and 1.2 li and can inside move.
Shown in the form of implementation of leading screw 1 in identical on the whole length of helical pitch at leading screw of gathering sill 1.1,1.2.Sliding shoe 2.1,2.2 rigidity are placed on the prong of connecting elements 2 or with it and are integral.
Also can consider a kind of form of implementation, gathering sill 1.1 and 1.2 lift can change on the length of leading screw 1 in this form of implementation.Therefore can adjust some control performance of arrow shaft 3.Must be fixed on movably on the connecting elements 2 at this unshowned situation downslide motion block 2.1,2.2.
When leading screw 1 rotation, sliding shoe 2.1,2.2 just plays the effect of guide block.Even in order when needing the direction of rotation of conversion leading screw 1, also seamlessly on the direction of central axis 1.3, to transmit this driving force that causes by rotatablely moving of leading screw 1, sliding shoe 2.1,2.2 must fill the width of gathering sill 1.1,1.2 fully, and can not influence sliding capability.A kind of unshowned cylindrical sliding shoe (its central axis radial finger is arranged to the axis 1.3 of leading screw 1) therefore must have the similar such external diameter of gathering sill 1.1,1.2 width that is.
Make leading screw 1 rotation by a Cylindrical gear actuator 5, this transmission device is made up of a driver pinion 5.1 and a driven wheel 5.2.Grooving guide rail 4 also can also have other guide part, and these guide parts for example are arranged in the side, and the camber member of an overlap joint arrow shaft 3 is perhaps arranged, and it has stoped arrow shaft 3 upwards to come off.
Fig. 2 has represented: arrow shaft 3 has a kind of cross section that is made of the rectangle hollow section bar.Because cancelled normally used in the prior art tooth portion, therefore can be designed to arrow shaft 3 dynamical according to the viewpoint of optimum stabilization and as far as possible little weight.Shown in the obviously higher bending resistance of the U-shaped profile usually used when for example having of the rectangular cross section of the hollow profile that can see in the form of implementation and antitorque performance than arrow shaft in the profile of tooth engagement, this design can make light in structure, and stability is high.
Although the acceleration of arrow shaft 3 is big especially, this acceleration especially occurs in wide loom, can limit the load of whole drive system and the driving power that must want thus.
Leading screw 1 is surrounded by a shell 8 and constitutes a construction unit with the guide rail 4 of grooving.
Drive a kind of reciprocal back and forth rotatablely moving of leading screw 1 realization in service continuously by Cylindrical gear actuator 5.Leading screw 1 has been prevented to vertically move reliably.Therefore this sliding shoe 2.1,2.2 that plays the guide block effect makes connecting elements 2 realize lengthwise movement on central axis 1.3 directions of leading screw 1.This motion is sent on the arrow shaft 3, and this is because connecting elements 2 is fixedlyed connected with arrow shaft 3.Therefore arrow shaft 3 moves back and forth owing to its guiding on 4 li on grooving guide rail has realized the straight line that a kind of quilt on its longitudinal direction is accurately controlled.Expressed the rectilinear motion of arrow shaft 3 with the direction arrow among Fig. 16, direction of rotation arrow 7 has then illustrated the alternating rotating direction of leading screw 1.
Claims (15)
1. the driving device in rapier of loom, reversible driven rotatably drive member makes arrow shaft realize a kind of motion reciprocal back and forth on its longitudinal direction in this device, it is characterized in that having the leading screw (1) as drive member and the screw-drive mechanism of connecting elements (2), in the screw thread of setting of connecting elements (2) anti-rotation ground and engaging-in leading screw (1), this connecting elements is connected with arrow shaft (3).
2. by the described driving device in rapier of claim 1, it is characterized in that, leading screw (1) and arrow shaft (3) layout that is parallel to each other, and connecting elements (2) is positioned on the end opposite with projectile shuttle (3.1) of arrow shaft (3).
3. by the described driving device in rapier of one of aforesaid right requirement, it is characterized in that the lead that on the length of leading screw, changes.
4. by the described driving device in rapier of one of aforesaid right requirement, it is characterized in that the screw thread of leading screw (1) is a motion thread, its threaded line has formed gathering sill (1.1,1.2), and the sliding shoe (2.1,2.2) of connecting elements (2) is embedded in this gathering sill.
5. by the described driving device in rapier of claim 4, it is characterized in that sliding shoe (2.1,2.2) is fixedlyed connected with connecting elements (2).
6. by the described driving device in rapier of claim 4, it is characterized in that movable fix of sliding shoe (2.1,2.2) on connecting elements (2).
7. by the described driving device in rapier of claim 6, it is characterized in that being designed to the sliding shoe of rolling bearing, wherein roll on the side of gathering sill in the outer ring of rolling bearing.
8. drive by claim 1 or 2 described arrow shafts, it is characterized in that connecting elements is designed to nut, the screw thread acting in conjunction of the internal thread of nut and leading screw.
9. by the described driving device in rapier of claim 8, it is characterized in that nut is designed to ball-screw nut, and ball leads in the gathering sill of the ball screw type of leading screw as sliding shoe.
10. by described driving device in rapier one of in the claim 4 to 7, has the two-wire motion thread that constitutes by gathering sill, it is characterized in that, connecting elements (2) is designed to the shape of two point forks, and (3)s surrounded leading screw (1) to fork, and were provided with sliding shoe (2.1 on the end of each prong from arrow shaft, 2.2), so each sliding shoe (2.1,2.2) is embedded into respective threaded line the inside and these two sliding shoes (2.1,2.2) are opposed mutually.
11., it is characterized in that reversible the rotatablely moving of leading screw (1) derived by intermediate gearing (5) by the main shaft of loom by the described driving device in rapier of one of aforesaid right requirement.
12., it is characterized in that leading screw reversible rotatablely moves directly or by intermediate gearing is derived by self the drive unit that is used for arrow shaft by described driving device in rapier one of in the claim 1 to 10.
13. by the described driving device in rapier of claim 12, it is characterized in that, carry out the driving of self by servomotor.
14., it is characterized in that arrow shaft (3) is led on the guide rail (4) of grooving slidably by the described driving device in rapier of one of aforesaid right requirement, this guide rail constitutes construction unit with the shell that surrounds leading screw (1) (8).
15. have the loom of the sheet shuttle system that is used to introduce weft yarn, it is characterized in that according to the described arrow shaft transmission device of one of aforesaid right requirement.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006016873A DE102006016873B3 (en) | 2006-04-07 | 2006-04-07 | Gripper rod drive for weft insertion gripper in loom, comprises screw drive with screw spindle as driving member and rotationally fixed coupling member gripping screw spindle thread |
| DE102006016873.9 | 2006-04-07 | ||
| PCT/DE2007/000508 WO2007115521A1 (en) | 2006-04-07 | 2007-03-21 | Gripper-bar drive of a weaving machine, and weaving machine having a gripper system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101415869A true CN101415869A (en) | 2009-04-22 |
| CN101415869B CN101415869B (en) | 2011-04-20 |
Family
ID=38268427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800122613A Expired - Fee Related CN101415869B (en) | 2006-04-07 | 2007-03-21 | Gripper-bar drive of a weaving machine, and weaving machine having a gripper system |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2004893B1 (en) |
| CN (1) | CN101415869B (en) |
| AT (1) | ATE483049T1 (en) |
| DE (2) | DE102006016873B3 (en) |
| WO (1) | WO2007115521A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634911A (en) * | 2012-04-06 | 2012-08-15 | 经纬纺织机械股份有限公司 | Automatic shed seeking device and weaving machine with same |
| CN105798335A (en) * | 2016-06-01 | 2016-07-27 | 上海昭程整流子科技有限公司 | Main shaft mechanism of groove cutting machine |
| CN107820525A (en) * | 2015-05-22 | 2018-03-20 | 意达股份公司 | The mechanism that reciprocating motion for carrying yarn gripper to the weft yarn in loom is controlled |
| CN108035053A (en) * | 2017-12-11 | 2018-05-15 | 中材科技股份有限公司 | A kind of Weft inserting device and Weft insertion method of multi-layer braided precast body |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT44556B (en) * | 1909-03-30 | 1910-10-25 | Konrad Hopferwieser | Wind chest for musical instruments. |
| IT1281187B1 (en) * | 1992-10-23 | 1998-02-17 | Inter Patent Limited | DEVICE FOR DRIVING THE CLAMP HOLDER BELTS FOR WEAVING MACHINES |
| CN2175770Y (en) * | 1993-10-28 | 1994-08-31 | 益进机械工业股份有限公司 | Shuffling device of variable guide-length screw-driven wefting mechanism |
| DE19538287C1 (en) * | 1995-10-14 | 1997-06-19 | Dornier Gmbh Lindauer | Loom with coolable rapier drive |
| CN2267260Y (en) * | 1996-11-18 | 1997-11-12 | 林林波 | Device for controlling weft insertion drive for shuttleless loom |
| DE10137183A1 (en) * | 2001-07-31 | 2003-02-20 | Staeubli Gmbh | Drive device for working elements on weaving machines |
-
2006
- 2006-04-07 DE DE102006016873A patent/DE102006016873B3/en not_active Expired - Fee Related
-
2007
- 2007-03-21 AT AT07722068T patent/ATE483049T1/en active
- 2007-03-21 EP EP07722068A patent/EP2004893B1/en not_active Not-in-force
- 2007-03-21 DE DE502007005203T patent/DE502007005203D1/en active Active
- 2007-03-21 WO PCT/DE2007/000508 patent/WO2007115521A1/en active Application Filing
- 2007-03-21 CN CN2007800122613A patent/CN101415869B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634911A (en) * | 2012-04-06 | 2012-08-15 | 经纬纺织机械股份有限公司 | Automatic shed seeking device and weaving machine with same |
| CN107820525A (en) * | 2015-05-22 | 2018-03-20 | 意达股份公司 | The mechanism that reciprocating motion for carrying yarn gripper to the weft yarn in loom is controlled |
| CN107820525B (en) * | 2015-05-22 | 2019-02-15 | 意达股份公司 | The mechanism controlled for the reciprocating motion to the weft yarn carrying yarn gripper in loom |
| CN105798335A (en) * | 2016-06-01 | 2016-07-27 | 上海昭程整流子科技有限公司 | Main shaft mechanism of groove cutting machine |
| CN105798335B (en) * | 2016-06-01 | 2018-02-06 | 上海昭程整流子科技有限公司 | Slot-cutting machine mainshaft mechanism |
| CN108035053A (en) * | 2017-12-11 | 2018-05-15 | 中材科技股份有限公司 | A kind of Weft inserting device and Weft insertion method of multi-layer braided precast body |
| CN108035053B (en) * | 2017-12-11 | 2021-03-12 | 南京玻璃纤维研究设计院有限公司 | Weft insertion device and weft insertion method for multilayer woven preform |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2004893A1 (en) | 2008-12-24 |
| DE502007005203D1 (en) | 2010-11-11 |
| EP2004893B1 (en) | 2010-09-29 |
| ATE483049T1 (en) | 2010-10-15 |
| DE102006016873B3 (en) | 2007-08-02 |
| WO2007115521A1 (en) | 2007-10-18 |
| CN101415869B (en) | 2011-04-20 |
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Granted publication date: 20110420 Termination date: 20200321 |
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