CN102605519B - Active driving mechanism for moving rear beam of rapier loom - Google Patents
Active driving mechanism for moving rear beam of rapier loom Download PDFInfo
- Publication number
- CN102605519B CN102605519B CN201210101602.7A CN201210101602A CN102605519B CN 102605519 B CN102605519 B CN 102605519B CN 201210101602 A CN201210101602 A CN 201210101602A CN 102605519 B CN102605519 B CN 102605519B
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- back rest
- rear beam
- belt wheel
- hinged
- driving mechanism
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- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 230000001360 synchronised effect Effects 0.000 claims abstract description 11
- 239000004744 fabric Substances 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims description 28
- 230000033001 locomotion Effects 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 4
- 238000009941 weaving Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000013641 positive control Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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Abstract
An active driving mechanism for a moving rear beam of a rapier loom comprises a fixed rear beam, a moving rear beam and a warp. The fixed rear beam is hinged to a fulcrum M on a frame through a bearing. The moving rear beam is hinged to a fulcrum S on a rear beam rocker through a bearing. The warp unwound from a warp beam passes by the fixed rear beam and the moving rear beam, reaches an opening rear prior to being divided into an upper warp layer and a lower warp layer, and reaches a cloth fell. The rear beam rocker is hinged to a transitional rocker through a first connecting bar, the transitional rocker is hinged to an eccentric wheel through a second connecting bar, and the eccentric wheel, the second connecting bar, the transitional rocker and the frame form a four-bar mechanism. The eccentric wheel is fixedly and coaxially connected with a rear beam pulley, the rear beam pulley is connected with a weft finding pulley through a synchronous belt, and the weft finding pulley is connected with a spindle through a weft finding clutch. The active driving mechanism can be used for a loom with a weft finding function, the rear beam swings with opening of the loom constantly, and accordingly change of warp tension cause by opening can be compensated effectively. Adjustment of compensation of the rear beam is convenient and accurate.
Description
Technical field
What the present invention relates to is a kind of positive driving mechanism of Rapier looms movable back beam, belongs to fabric manufacture equipment and weaving process technology in field of textile machinery.
Background technology
The movable back beam of loom plays the effect that makes up the tension variation that Warp opening causes, in Rapier looms, the swing of movable back beam is generally by control and spring passive, movable back beam overcomes spring force and swings under the effect of warp tension, makes up the variation of warp tension, and existing a kind of structure as shown in Figure 1, from warp beam warp thread out, the process fixedly back rest 101, movable back beam 102 arrives open areas, is divided into upper and lower two-layer warp thread, then arrives cloth fell.Fixedly the back rest 101 passes through bearing hinge connection with frame, can be around fixedly center of rotation M rotation.Movable back beam 102 by bearing hinge connection in back rest swing arm 103, with back rest swing arm 103, under the elastic force effect of warp tension and spring 105, around fixed pivot T, swing, compensate the variation of the warp tension causing due to opening, movable back beam 102 can relatively rotate with back rest swing arm 103.
The shortcoming that said structure exists has:
1,, when loom speed is very high, the swing hysteresis harness motion of the back rest, can not compensate the warp tension variation that opening causes well;
2, when the elasticity of warp thread is very poor, as weaving glass fiber, even if weaving speed is lower, the very difficult coupling of rigidity due to spring, cannot compensate the warp tension causing due to opening changes, occur that opening strengthens warp tension and sharply strengthens, combine the lax phenomenon of warp thread at ordinary times, have a strong impact on product quality and production efficiency.
In air-jet loom, there is the back rest mechanism of positive driving, the position of the back rest, with the size variation of loom opening amount, makes up the warp tension being caused by opening amount and changes, and as shown in Figure 2, specific works principle is as follows in a kind of existing mechanism wherein:
The primary shaft belt pulley 201 being connected with main shaft drives back rest belt wheel 205 to rotate by Timing Belt 202, and Timing Belt 202 is by expansion tightening wheel 203 tensioners that are arranged on expansion tightening wheel support arm 204.Eccentric 206 are coaxially connected with back rest belt wheel 205, and bias 206 is hinged by bearing and frame, and connecting rod 207 one end are hinged with bias 206 by bearing, and the other end is hinged by bearing and back rest fork 208, and back rest fork 208 is hinged by bearing and frame; Bias 206, connecting rod 207, back rest fork 208 form a quadric chain with frame, and rotating fulcrum is respectively C, D, E, T point.From warp thread out of warper beam unwinding through being hinged on the fixedly back rest 209 M fulcrum, the movable back beam 210 being hinged in back rest swing arm 208 arrives open areas, is divided into upper and lower two-layer warp thread, then arrives cloth fell.By driving CDET quadric chain by main shaft, realize the ACTIVE CONTROL to back beam swinging, compensate the variation of the warp tension causing due to opening.
The shortcoming that said structure exists has: there is the loom of seeking latitude function, and when seeking latitude, shedding mechanism motion, main shaft does not move; In the mechanism shown in Fig. 2, the wobbling action of movable back beam is directly driven by main shaft, cannot meet the driving to the back rest when seeking latitude, also just cannot compensate the variation that warp tension causes due to harness motion, the loom of latitude function can only be sought for nothing by this mechanism, and general high-grade arrow shaft all needs to have the latitude of seeking function.
Summary of the invention
The object of the invention is to overcome the deficiency that prior art exists, and provide a kind of, have on the Rapier looms of seeking latitude function, the movable back beam that can realize positive control drives function, the movable back beam of guaranteeing loom moves with the warp opening movement of loom all the time, to make up the positive driving mechanism that causes the Rapier looms movable back beam that warp tension changes because of opening.
The object of the invention is to complete by following technical solution, it comprise one by bearing hinge connection the fixedly back rest on frame M fulcrum, one by bearing hinge connection the movable back beam on back rest swing arm S fulcrum, one warp thread arrives open area and is divided into upper and lower two-layer warp thread through the described fixedly back rest, movable back beam out from warper beam unwinding, then arrives cloth fell; Described back rest swing arm is hinged by first connecting rod and a transition fork, and this transition fork is hinged by second connecting rod and a bias, and has formed a quadric chain by described bias, second connecting rod, transition fork and frame; Described bias and a back rest belt wheel are coaxially connected, and described back rest belt wheel is sought latitude belt wheel by Timing Belt and and is connected, and this is sought latitude belt wheel and is connected with main shaft by seeking latitude clutch.
Described Timing Belt is by the expansion tightening wheel tensioner being arranged on a regulating wheel support arm; Described quadric chain has comprised C, D, E, tetra-rotating fulcrums of G, the wherein adjustable in length between ED fulcrum, EG fulcrum.
Back rest belt wheel 305 of the present invention is connected by the first shaft coupling and a transition minor axis, transition minor axis drives major axis to be connected by the second shaft coupling and a back rest again, the back rest drives the two ends of major axis hinged by bearing and frame, at the described back rest, drive major axis left and right to be respectively fixed with one and can realize the bias that back rest two-side synchronous drives, and bias drives the installation direction on major axis identical at the back rest.
The circumferential fixed position of described shaft coupling and transition minor axis is adjustable, and for eccentric adjustment and comprehensive flat relative position; On transition fork, have one for the back rest, to combine the pin-and-hole of the adjusting of mean place.
Timing Belt of the present invention is double-sided synchronous belt, on it, be also wound with an opening belt wheel that can drive shedding mechanism to move, this opening belt wheel is at the back rest belt wheel of the relative side of regulating wheel and seek between latitude belt wheel, and regulating wheel is in making the position of the downward tensioner direction of Timing Belt.
Back rest belt wheel of the present invention (305) is connected with shedding motion power shaft.
The present invention can be for having the loom of seeking latitude function, and the harness motion of loom is followed in the swing of the back rest all the time, thereby can effectively compensate the warp tension variation causing because of opening; And while regulating the compensation rate of the back rest, easy to operate, regulate accurately.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of prior art.
Fig. 2 is the another kind of structural representation of prior art.
Fig. 3 is a kind of structural representation of the present invention.
Fig. 4 be in Fig. 3 A to view.
Fig. 5 is that the B1-B1 in Fig. 3 cuts open and shows structural representation.
Fig. 6 is another structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail: shown in Fig. 3,4,5, the positive driving mechanism of the Rapier looms movable back beam described in this name, it comprise one by bearing hinge connection the fixedly back rest 310 on frame M fulcrum, one by bearing hinge connection the movable back beam 311 on back rest swing arm S fulcrum, one warp thread arrives open area and is divided into upper and lower two-layer warp thread through the described fixedly back rest, movable back beam out from warper beam unwinding, then arrives cloth fell; Described back rest swing arm 312 is hinged by first connecting rod 309 and a transition fork 308, this transition fork 308 is hinged with a bias 306 by second connecting rod 307, and has formed a quadric chain by described eccentric 306, second connecting rod 307, transition fork 308 and frame; Described bias 306 and a back rest belt wheel 305 are coaxially connected, and described back rest belt wheel 305 is sought latitude belt wheel 301 by Timing Belt and and is connected, and this is sought latitude belt wheel 301 and is connected with main shaft 314 by seeking latitude clutch.
Described Timing Belt 302 is by regulating wheel 303 tensionings that are arranged on a regulating wheel support arm 304; Described quadric chain has comprised C, D, E, tetra-rotating fulcrums of G, the wherein adjustable in length between ED fulcrum, EG fulcrum.
Back rest belt wheel 305 of the present invention is connected by the first shaft coupling 316 and a transition minor axis 317, transition minor axis 317 drives major axis 318 to be connected by the second shaft coupling 316 ' and a back rest again, the back rest drives the two ends of major axis 318 hinged by bearing and frame, at the described back rest, drive major axis 318 left and right to be respectively fixed with one and can realize the bias 306 that back rest two-side synchronous drives, and eccentric 306 drive the installation direction on major axis identical at the back rest.
Described shaft coupling 316 is adjustable with the circumferential fixed position of minor axis, and for eccentric adjustment and comprehensive flat relative position; On transition fork 308, have one for the back rest, to combine the pin-and-hole R of the adjusting of mean place.
Timing Belt of the present invention is double-sided synchronous belt, on it, be also wound with an opening belt wheel 319 that can drive shedding mechanism to move, this opening belt wheel 319 is at the back rest belt wheel 305 of the relative side of regulating wheel 303 and seek between latitude belt wheel 301, and regulating wheel is in making the position of the downward tension direction of Timing Belt.
Back rest belt wheel of the present invention (305) is connected with shedding motion power shaft.
Embodiment:
Have on the Rapier looms of seeking latitude function, for the very poor fabric of some warp thread elasticity, as Woven glass cloth, in order to solve the effective compensation of the tension variation that Warp opening causes, realize the movable back beam of actively controlling and drive function, the movable back beam of guaranteeing loom moves with warp opening movement all the time, makes up the warp tension causing because of opening and changes.As Fig. 3,4,5 is depicted as the structural representation of a kind of embodiment, one seeks latitude belt wheel 301 is connected by seeking latitude clutch with main shaft 314, when normally weaving, seek latitude clutch and close, main shaft 314 with seek the synchronized running of latitude belt wheel 301, when loom is sought latitude, seek latitude throw-out-of clutch, seek latitude belt wheel 301 and rotate under the driving of seeking latitude motor, main shaft 314 is motionless, as shown in Figure 4; Seek latitude belt wheel 301 and drive back rest belt wheel 305 ' by Timing Belt 302, Timing Belt 302 is by expansion tightening wheel 303 tensioners that are arranged on expansion tightening wheel support arm 304, in tensioner direction.Eccentric 306 are coaxially connected with back rest belt wheel 305 ', back rest belt wheel 305 ' is fixed on shedding motion power shaft, drive shedding mechanism motion simultaneously, connecting rod 307 one end are hinged with bias 306 by bearing, the other end is hinged by bearing and transition fork 308, and transition fork 308 is hinged by bearing and frame; Bias 306, connecting rod 307, transition fork 308 form a quadric chain with frame, and rotating fulcrum is respectively C, D, E, G point, and the length of ED, EG can regulate according to the position of the back rest and the compensation rate needing; Connecting rod 309 one end and transition fork 308 are by bearing hinge connection, and the other end and back rest swing arm 312 are by bearing hinge connection, and back rest swing arm 312 is hinged by bearing and frame, and pin joint is respectively H, K, T point.Movable back beam 311 by bearing hinge connection on the S of back rest swing arm 312 fulcrum.Fixedly the back rest 310 is hinged by bearing and frame, and pin joint is fulcrum M.By warp beam warp thread out, process is the back rest 310 fixedly, and movable back beam 311 arrives open area, and warp thread is divided into two-layer up and down, then arrives fell.Seeking latitude belt wheel rotates one week, warp thread is realized opening one time, movable back beam swings once around fixed pivot T with back rest support arm under the driving of belt wheel, linkage, when opening strengthens, the back rest moves downward, and when opening reduces, the back rest moves upward, the tension variation that compensation warp thread causes due to opening, as shown in Figure 3.Because loom fabric width generally all surpasses 1.5m, the back rest of loom also surpasses 1.5m, need to adopt bilateral to drive, so the mechanism that drives the back rest need to be arranged in the both sides of loom, consider that shedding motion is one-sided, need to there is an axle motion to be transferred to the opposite side of loom, structure as shown in Figure 5, back rest belt wheel 305 is connected with transition minor axis 317 by the first shaft coupling 316, transition minor axis 317 drives major axis 318 to be connected by the second shaft coupling 316 ' and the back rest, and the back rest drives major axis 318 hinged by bearing and loom base (frame).Eccentric 306 drive major axis 318 to be connected with the back rest, eccentric 306 on major axis 318 each of left and right, eccentricly at the back rest, drive the installation direction on major axis identical, the two-side synchronous of realizing the back rest drives.Shaft coupling 316 is adjustable with the circumferential fixed position of minor axis, for eccentric adjustment and comprehensive flat relative position.On transition fork 308, there is a pin-and-hole R, for the back rest, combine the adjusting of mean place.When loom is when combining mean place, by the fixing relative position of transition fork 308 and frame of shop bolt, warp thread compensation rate as required, the length that regulates ED, pulls connecting rod 307, and C, D, E are in a straight line, fixedly ED length, can complete the adjustment of the back rest.
Bias of the present invention is the structure abbreviation that eccentric wheel or eccentric rod etc. form eccentric motion.
Another embodiment of the present invention is: to some shedding mechanism, the location comparison of power shaft is near warp beam, be subject to the obstruction of warp beam disc, this axle cannot be extended to the opposite side of loom, now need that the motion on opening power shaft is sent to the back rest and drive on major axis, schematic diagram of mechanism is shown in Fig. 6, seeks latitude belt wheel 301 by double-sided synchronous belt 302, drive opening belt wheel 319, opening belt wheel 319 drives shedding mechanism motion.Meanwhile, double-sided synchronous belt 302 drives 305 motions of back rest belt wheels, and double-sided synchronous belt 302 is by expansion tightening wheel 303 tensioners that are arranged on expansion tightening wheel support arm 304, and tensioner direction is downward, and all the other structures and Fig. 3, Fig. 4, Fig. 5 are identical, see the introduction of embodiment mono-.
Claims (5)
1. the positive driving mechanism of a Rapier looms movable back beam, it comprise one by bearing hinge connection the fixedly back rest on frame M fulcrum, one by bearing hinge connection the movable back beam on back rest swing arm S fulcrum, one warp thread arrives open area and is divided into upper and lower two-layer warp thread through the described fixedly back rest, movable back beam out from warper beam unwinding, then arrives cloth fell; It is characterized in that described back rest swing arm (312) is hinged by first connecting rod (309) and a transition fork (308), this transition fork (308) is hinged by second connecting rod (307) and a bias (306), and has formed a quadric chain by described bias (306), second connecting rod (307), transition fork (308) and frame; Described bias (306) is coaxially connected with a back rest belt wheel (305), and described back rest belt wheel (305) is sought latitude belt wheel (301) by Timing Belt and and is connected, and this is sought latitude belt wheel (301) and is connected with main shaft (314) by seeking latitude clutch (315).
2. the positive driving mechanism of Rapier looms movable back beam according to claim 1, is characterized in that described Timing Belt (302) is by regulating wheel (303) tensioning being arranged on a regulating wheel support arm (304); Described quadric chain has comprised C, D, E, tetra-rotating fulcrums of G, the wherein adjustable in length between ED fulcrum, EG fulcrum.
3. the positive driving mechanism of Rapier looms movable back beam according to claim 1, it is characterized in that described back rest belt wheel (305) is connected by the first shaft coupling (316) and a transition minor axis (317), transition minor axis (317) drives major axis (318) to be connected by the second shaft coupling (316 ') and a back rest again, the back rest drives the two ends of major axis (318) hinged by bearing and frame, at the described back rest, drive major axis (318) left and right to be respectively fixed with one and can realize the bias (306) that back rest two-side synchronous drives, and eccentric (306) drive the installation direction on major axis identical at the back rest.
4. the positive driving mechanism of Rapier looms movable back beam according to claim 3, is characterized in that described shaft coupling (316) is adjustable with the circumferential fixed position of transition minor axis (317), and for eccentric adjustment and comprehensive flat relative position; On transition fork (308), have one for the back rest, to combine the pin-and-hole (R) of the adjusting of mean place.
5. the positive driving mechanism of Rapier looms movable back beam according to claim 1, is characterized in that described back rest belt wheel (305) and shedding motion power shaft are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210101602.7A CN102605519B (en) | 2012-04-10 | 2012-04-10 | Active driving mechanism for moving rear beam of rapier loom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210101602.7A CN102605519B (en) | 2012-04-10 | 2012-04-10 | Active driving mechanism for moving rear beam of rapier loom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102605519A CN102605519A (en) | 2012-07-25 |
| CN102605519B true CN102605519B (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210101602.7A Expired - Fee Related CN102605519B (en) | 2012-04-10 | 2012-04-10 | Active driving mechanism for moving rear beam of rapier loom |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102978806A (en) * | 2012-11-27 | 2013-03-20 | 青岛铠硕纺机有限公司 | Back rest structure used for air jet loom |
| CN103382615B (en) * | 2013-06-27 | 2014-12-24 | 浙江理工大学 | Servo-driven type movable back beam mechanism |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH482041A (en) * | 1967-09-20 | 1969-11-30 | Strake Maschf Nv | Loom |
| US3498337A (en) * | 1966-10-21 | 1970-03-03 | Hindle Son & Co Ltd | Loom warp letting-off mechanism |
| US4125131A (en) * | 1976-09-21 | 1978-11-14 | Adolph Saurer | Fixed driving connection between a guide roller and delivery roller of a loom |
| CN102146609A (en) * | 2010-11-13 | 2011-08-10 | 江苏万工科技集团有限公司 | Rear beam driving mechanism of jet loom |
| CN102212930A (en) * | 2011-06-08 | 2011-10-12 | 苏州大学 | Method and device for controlling warp tension of air-jet loom |
| CN102234863A (en) * | 2010-11-13 | 2011-11-09 | 江苏万工科技集团有限公司 | Closed loop control device for rear beam driving mechanism of jet loom |
| CN202644071U (en) * | 2012-04-10 | 2013-01-02 | 浙江万利纺织机械有限公司 | Positive driving mechanism of movable back rest of rapier loom |
-
2012
- 2012-04-10 CN CN201210101602.7A patent/CN102605519B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3498337A (en) * | 1966-10-21 | 1970-03-03 | Hindle Son & Co Ltd | Loom warp letting-off mechanism |
| CH482041A (en) * | 1967-09-20 | 1969-11-30 | Strake Maschf Nv | Loom |
| US4125131A (en) * | 1976-09-21 | 1978-11-14 | Adolph Saurer | Fixed driving connection between a guide roller and delivery roller of a loom |
| CN102146609A (en) * | 2010-11-13 | 2011-08-10 | 江苏万工科技集团有限公司 | Rear beam driving mechanism of jet loom |
| CN102234863A (en) * | 2010-11-13 | 2011-11-09 | 江苏万工科技集团有限公司 | Closed loop control device for rear beam driving mechanism of jet loom |
| CN102212930A (en) * | 2011-06-08 | 2011-10-12 | 苏州大学 | Method and device for controlling warp tension of air-jet loom |
| CN202644071U (en) * | 2012-04-10 | 2013-01-02 | 浙江万利纺织机械有限公司 | Positive driving mechanism of movable back rest of rapier loom |
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| CN102605519A (en) | 2012-07-25 |
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