CN102808274A - Electronic warp let-off device with weight block - Google Patents
Electronic warp let-off device with weight block Download PDFInfo
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- CN102808274A CN102808274A CN2012102951426A CN201210295142A CN102808274A CN 102808274 A CN102808274 A CN 102808274A CN 2012102951426 A CN2012102951426 A CN 2012102951426A CN 201210295142 A CN201210295142 A CN 201210295142A CN 102808274 A CN102808274 A CN 102808274A
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Abstract
The invention discloses an electronic warp let-off device with a weight block. The electronic warp let-off device comprises an electronic warp let-off system, a dual-rocking rod mechanism and a counter weight, wherein the dual-rocking rod mechanism comprises a swing rod; the swing rod can swing around a second supporting point arranged on a T-shaped arm; one end of the swing rod is hinged with the upper end of a connecting rod; the lower end of the connecting rod is contacted with a weight suspension rod; the contact point is an elastic restriction point; the position of the elastic restriction point on the weight suspension rod is connected with the ground through a spring; one end of the weight suspension rod can swing around a first supporting point arranged on a warp let-off machine frame; the other end of the weight suspension rod is connected with the counter weight; the other end of the swing rod is connected with a movable rear beam through a swing arm; and a tension sensor is arranged on the connecting rod. According to the electronic warp let-off device, the periodically generated swing amplitude of tension force of warp yarns is reduced by reducing the height of the rear beam and the total tension force of the working warp yarns, so that uniform and regular fabrics can be obtained, and knit faults of thick and thin stripes, uneven weaving and the like are reduced.
Description
Technical field
The invention belongs to the air-jet loom field, relate to a kind of let-off motion, in particular to a kind of electronic letting-off device that is used to knit the band pouring weight of thin fabric.
Background technology
Loom adopts the formation fabric that interweaves of warp thread, weft yarn; Weft yarn can have two looks or polychrome; But the single often tension force of warp thread; Referring to shown in Figure 1, for existing loom use single through the axle air-jet loom through position line sketch map, this single let-off motion through the axle air-jet loom is made up of through axle and two back rest single.
Further, the air-jet loom shown in Figure 1 electronic letting-off device that is widely used, but knitting thinlyyer during with the filling density smaller fabrics, float such as rare close shelves and uneven weaving still can appear.
The electronic letting-off device that tension pick-up and servomotor are formed can be according to the parameter setting revisal amount at parking period length down time and yarn because warp tension, back rest position with down time length change.Most of textile yarns produce the tension and relaxation process because of the viscoplasticity of material; Warp thread has extended, and back rest position has become, and causes the change in location of fell; Electronic letting-off device is according to the revisal amount; The servomotor counter-rotating is a certain amount of, and the Tension Difference because of producing down time during the starting of revisal loom is moved the back rest and fell to the position that conforms to the forward pull of stopping.
But, for the lower plain weave of filling density, cause alternately occurring rare or close latitude distance, especially the inweaving of last several weft yarns before shutting down exerted an influence, thoroughly do not accomplish because beat up.Can't solve this rare or close latitude distance that alternately occurs fully with existing electronic letting-off device; Weft yarn is completely fixed in the fabric owing to interweave; Be to accomplish in distance back from several latitudes of fell; And the last several weft yarns of before shutdown, introducing are not also squeezed into fabric, and weft yarn is not completely fixed, so the position, intertwined point is changed.Very easily generate rare close shelves and uneven weaving when knitting thin fabric, the fell geometry changes and brown frame goes up and down forms periodic inhomogeneities generation uneven weaving in filling density.
With regard to the shelves of driving, what improved difficult point was the loom starting state with dead ship condition is consistent, and all fabrics all are consistent.
Summary of the invention
For overcoming deficiency of the prior art, the object of the invention purport is that air-jet loom provides a kind of electronic letting-off device with pouring weight, and float such as rare close shelves and uneven weaving can not appear in this device when knitting thin fabric.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention realizes through following technical scheme:
A kind of electronic letting-off device with pouring weight comprises an electronic let-off control system, and said electronic let-off control system mainly is made up of tension pick-up, signal amplifier, warp let-off control panel, servomotor, decelerator and gear pair, also comprises double rocker mechanism and weight; Said double rocker mechanism comprises a swing arm; Said swing arm can be around second strong point swing that is arranged on the T shape arm, and an end of said swing arm and the upper end of a connecting rod are hinged, and the lower end of said connecting rod contacts with a suspending weight bar; Contact point is the elastic restraint point; The position that on said suspending weight bar, is positioned at said elastic restraint point connects ground through a spring, and said suspending weight bar one end can be around first strong point swing that is arranged on the warp let-off frame, and the other end is connected with said weight.
The other end of said swing arm is through the swing arm connection activity back rest.
Preferably, said tension pick-up is arranged on the said connecting rod.
Preferably, said tension pick-up one end is connected on the said T shape arm, and the other end is connected on the said swing arm.
Further, said weight is made up of some balancing weights.
Compared with prior art, beneficial effect of the present invention is following:
The electronic letting-off device of band pouring weight of the present invention through the reduction activity after depth of beam and the total tension force of last machine warp thread; Reduce the periodically warp tension wobble amplitude of appearance; Reach the evenly neat of fabric; Reduce float such as rare close shelves and uneven weaving,, realize through following process specifically to remedy the deficiency of electronic letting-off device:
(1) the tension force tension force revisal of exerting oneself control such as sensor, servomotor cloth fell, starting power revisal and down time etc.
(2) regulate the upward total tension force of machine warp thread with weight, restart the warp tension that the stage warp tension reaches the cut-off time at loom, reduction activity back beam height prevents float such as uneven weaving; Movable back fine strain of millet location-appropriate is turned down; Trying to achieve optimum weaves evenly; Reduce of the fluctuation of the starting moment because of the too high generation warp tension of fine strain of millet position after the activity; Prevent that the fabric section that produces sparse shelves from adopting the total tension force of reduction warp thread, restart the stage warp tension at loom and reach the warp tension of cut-off time and the movable back rest position of standard, just float can not occur; Movable back fine strain of millet location-appropriate is turned down, and tries to achieve the optimum of thin fabric and weaves.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention, understands technological means of the present invention in order can more to know, and can implement according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. specify as after.The specific embodiment of the present invention is provided by following examples and accompanying drawing thereof in detail.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 be in the prior art single through the axle air-jet loom through position line sketch map;
Fig. 2 is the structural representation of one embodiment of the invention;
Fig. 3 is the operation principle sketch map of the embodiment that discloses among Fig. 2;
Fig. 4 is the structural representation of another embodiment of the present invention.
The specific embodiment
Below with reference to accompanying drawing and combine embodiment, specify the present invention.
Embodiment 1:
Referring to shown in Figure 2; A kind of electronic letting-off device with pouring weight; Comprise an electronic let-off control system, said electronic let-off control system mainly is made up of tension pick-up 1, signal amplifier, warp let-off control panel, servomotor, decelerator and gear pair, also comprises double rocker mechanism and weight 2; Said double rocker mechanism comprises a swing arm 301; Said swing arm 301 can be around second strong point B swing that is arranged on the T shape arm 4; One end of said swing arm 301 and the upper end of a connecting rod 302 are hinged; The lower end of said connecting rod 302 contacts with a suspending weight bar 303, and contact point is elastic restraint point C, and the position that on said suspending weight bar 303, is positioned at said elastic restraint point C is through a spring 7 connection ground; Said suspending weight bar 303 1 ends can be around first strong point A swing that is arranged on the warp let-off frame, and the other end is connected with said weight 2.
The other end of said swing arm 301 is through the swing arm 5 connection activity back rest 6.
Further, said weight 2 is made up of some balancing weights 201.
The operation principle of present embodiment is following:
Referring to shown in Figure 3, the power effect of 2 pairs of movable back rest 6 of expression weight is transmitted, and weight 2 applies active force through double rocker mechanism to the movable back rest 6.Like Fig. 3, the extension point D of suspending weight bar 303 adds weight 2, and the moment of 2 couples first strong point A of weight is W * L
AD, W is the weight of weight 2, L
AFThe distance of some F to first strong point A extended in expression.Suspending weight bar 303 increases the weight of back compression spring 7, and spring 7 produces directed force F, and the moment that directed force F is ordered to first strong point A is F * L
AC, L
ACExpression elastic restraint point C is to the distance of first strong point A, W * LAF ≈ F * LAC.Connecting rod 302 drives swing arm 301 swings, and swing arm 301 is attached on the swing arm 5, and swing arm 301 swings are turned down fine strain of millet 6 positions, movable back through swing arm 5.According to the requirement of fabric, add the weight 2 of different masses number, the position of the adjusting activity back rest 6.
After having added weight 2, equal the movable back rest 6 has been applied moment, moment loading direction and warp tension in the opposite direction reduced the total tension force of last machine warp thread.If warp tension continues to raise before loom is restarted, will cause fabric section overstocked.The last several weft yarns of introducing are not also squeezed into fabric before shutdown again, and weft yarn is not completely fixed, and will cause fabric section rare excessively.Reduce the total tension force of warp thread, restart the stage warp tension at loom and reach the warp tension of cut-off time and the movable back rest 6 positions of standard, just float can not occur.Movable back fine strain of millet 6 location-appropriates are turned down, and try to achieve the optimum of thin fabric and weave.
Embodiment 2:
A kind of electronic letting-off device with pouring weight comprises an electronic let-off control system, and said electronic let-off control system mainly is made up of tension pick-up 1, signal amplifier, warp let-off control panel, servomotor, decelerator and gear pair, also comprises double rocker mechanism and weight 2; Said double rocker mechanism comprises a swing arm 301; Said swing arm 301 can be around second strong point B swing that is arranged on the T shape arm 4; One end of said swing arm 301 and the upper end of a connecting rod 302 are hinged; The lower end of said connecting rod 302 contacts with a suspending weight bar 303, and contact point is elastic restraint point C, and the position that on said suspending weight bar 303, is positioned at said elastic restraint point C is through a spring 7 connection ground; Said suspending weight bar 303 1 ends can be around first strong point A swing that is arranged on the warp let-off frame, and the other end is connected with said weight 2.
The other end of said swing arm 301 is through the swing arm 5 connection activity back rest 6.
Preferably, said tension pick-up 1 one ends are connected on the said T shape arm 4, and the other end is connected on the said swing arm 5.
Further, said weight 2 is made up of some balancing weights 201.
The operation principle of present embodiment is identical with the operation principle of embodiment 1, no longer repeats to introduce here.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. electronic letting-off device with pouring weight; Comprise an electronic let-off control system; Said electronic let-off control system mainly is made up of tension pick-up (1), signal amplifier, warp let-off control panel, servomotor, decelerator and gear pair, it is characterized in that: also comprise double rocker mechanism and weight (2);
Said double rocker mechanism comprises a swing arm (301); Said swing arm (301) can be around second strong point (B) swing that is arranged on the T shape arm (4); The upper end of one end of said swing arm (301) and a connecting rod (302) is hinged; The lower end of said connecting rod (302) contacts with a suspending weight bar (303), and contact point is an elastic restraint point (C), and the position that on said suspending weight bar (303), is positioned at said elastic restraint point (C) connects ground through a spring (7); Said suspending weight bar (303) one ends can be around first strong point (A) swing that is arranged on the warp let-off frame, and the other end is connected with said weight (2);
The other end of said swing arm (301) is through swing arm (5) the connection activity back rest (6);
Said tension pick-up (1) is arranged on the said connecting rod (302).
2. the electronic letting-off device of band pouring weight according to claim 1 is characterized in that: said weight (2) is made up of some balancing weights (201).
3. electronic letting-off device with pouring weight; Comprise an electronic let-off control system; Said electronic let-off control system mainly is made up of tension pick-up (1), signal amplifier, warp let-off control panel, servomotor, decelerator and gear pair, it is characterized in that: also comprise double rocker mechanism and weight (2);
Said double rocker mechanism comprises a swing arm (301); Said swing arm (301) can be around second strong point (B) swing that is arranged on the T shape arm (4); The upper end of one end of said swing arm (301) and a connecting rod (302) is hinged; The lower end of said connecting rod (302) contacts with a suspending weight bar (303), and contact point is an elastic restraint point (C), and the position that on said suspending weight bar (303), is positioned at said elastic restraint point (C) connects ground through a spring (7); Said suspending weight bar (303) one ends can be around first strong point (A) swing that is arranged on the warp let-off frame, and the other end is connected with said weight (2);
The other end of said swing arm (301) is through swing arm (5) the connection activity back rest (6);
Said tension pick-up (1) one end is connected on the said T shape arm (4), and the other end is connected on the said swing arm (5).
4. the electronic letting-off device of band pouring weight according to claim 3 is characterized in that: said weight (2) is made up of some balancing weights (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102951426A CN102808274A (en) | 2012-08-20 | 2012-08-20 | Electronic warp let-off device with weight block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102951426A CN102808274A (en) | 2012-08-20 | 2012-08-20 | Electronic warp let-off device with weight block |
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| CN102808274A true CN102808274A (en) | 2012-12-05 |
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| CN2012102951426A Pending CN102808274A (en) | 2012-08-20 | 2012-08-20 | Electronic warp let-off device with weight block |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0038025A2 (en) * | 1980-04-12 | 1981-10-21 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | An apparatus for regulating tension in warps of a weaving machine |
| CN2447343Y (en) * | 2000-10-25 | 2001-09-12 | 萧山市轻工机械厂 | Warp let-off device |
| CN2892901Y (en) * | 2006-04-07 | 2007-04-25 | 青岛伊思达机械制造有限公司 | Let-off mechanism utilizing positive warp loosing for water jet loom |
| CN201067939Y (en) * | 2007-05-22 | 2008-06-04 | 蔡华峻 | Reversal positive machinery warp-feeding device for plastic braiding machine |
| CN201132879Y (en) * | 2007-10-19 | 2008-10-15 | 金坛市天盛机械制造有限公司 | Tension induction electronic let-off device of velvet rapier loom |
| CN201738093U (en) * | 2010-05-21 | 2011-02-09 | 徐放鸣 | Electronic warp yarn transporting system of ribbon loom |
| CN201817656U (en) * | 2010-08-14 | 2011-05-04 | 广东丰凯机械股份有限公司 | Let-off mechanism of glass fiber weaving machine |
| CN201857482U (en) * | 2010-11-17 | 2011-06-08 | 江苏万工科技集团有限公司 | Device for automatically regulating sampling period of warp yarn feeding mechanism of loom |
| CN102268773A (en) * | 2011-07-25 | 2011-12-07 | 宿迁恒达纺织有限公司 | Three-beam air (water) jet weaving machine |
| CN102154767B (en) * | 2011-04-11 | 2012-02-22 | 青岛同春机电科技有限公司 | High-efficiency weaving and let-off method for double-layer lint |
| CN101949078B (en) * | 2010-05-21 | 2012-05-30 | 宁波科光机电有限公司 | Electronic let-off system for ribbon loom |
| CN203065729U (en) * | 2012-08-20 | 2013-07-17 | 江苏万工科技集团有限公司 | Electronic let-off device with weight |
-
2012
- 2012-08-20 CN CN2012102951426A patent/CN102808274A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0038025A2 (en) * | 1980-04-12 | 1981-10-21 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | An apparatus for regulating tension in warps of a weaving machine |
| CN2447343Y (en) * | 2000-10-25 | 2001-09-12 | 萧山市轻工机械厂 | Warp let-off device |
| CN2892901Y (en) * | 2006-04-07 | 2007-04-25 | 青岛伊思达机械制造有限公司 | Let-off mechanism utilizing positive warp loosing for water jet loom |
| CN201067939Y (en) * | 2007-05-22 | 2008-06-04 | 蔡华峻 | Reversal positive machinery warp-feeding device for plastic braiding machine |
| CN201132879Y (en) * | 2007-10-19 | 2008-10-15 | 金坛市天盛机械制造有限公司 | Tension induction electronic let-off device of velvet rapier loom |
| CN201738093U (en) * | 2010-05-21 | 2011-02-09 | 徐放鸣 | Electronic warp yarn transporting system of ribbon loom |
| CN101949078B (en) * | 2010-05-21 | 2012-05-30 | 宁波科光机电有限公司 | Electronic let-off system for ribbon loom |
| CN201817656U (en) * | 2010-08-14 | 2011-05-04 | 广东丰凯机械股份有限公司 | Let-off mechanism of glass fiber weaving machine |
| CN201857482U (en) * | 2010-11-17 | 2011-06-08 | 江苏万工科技集团有限公司 | Device for automatically regulating sampling period of warp yarn feeding mechanism of loom |
| CN102154767B (en) * | 2011-04-11 | 2012-02-22 | 青岛同春机电科技有限公司 | High-efficiency weaving and let-off method for double-layer lint |
| CN102268773A (en) * | 2011-07-25 | 2011-12-07 | 宿迁恒达纺织有限公司 | Three-beam air (water) jet weaving machine |
| CN203065729U (en) * | 2012-08-20 | 2013-07-17 | 江苏万工科技集团有限公司 | Electronic let-off device with weight |
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Application publication date: 20121205 |