CN103898668B - Let-off device of air jet loom - Google Patents
Let-off device of air jet loom Download PDFInfo
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- CN103898668B CN103898668B CN201410109916.0A CN201410109916A CN103898668B CN 103898668 B CN103898668 B CN 103898668B CN 201410109916 A CN201410109916 A CN 201410109916A CN 103898668 B CN103898668 B CN 103898668B
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Abstract
The invention discloses a let-off device of an air jet loom. The let-off device comprises a left machine frame and a right machine frame, wherein the left machine frame and the right machine frame are the same in structure. A tension roller and a transition roller are installed between the left machine frame and the right machine frame. The left machine frame and the right machine frame respectively comprise a lifting support and a positioning base installed on the upper portion of the lifting support. The two positioning bases are respectively provided with a tension roller supporting mechanism. The tension roller supporting mechanisms respectively comprise a rocking shaft, a rocking arm is installed at one end of each rocking shaft, a movable supporting arm is installed at the other end of each rocking shaft, the rocking arms are located outside the left machine frame and the right machine frame, the movable supporting arms are located inside the left machine frame and the right machine frame, the outer sides of the rocking arms are connected with positive warp loosening mechanisms or negative tension mechanisms, and the movable supporting arms are respectively provided with a lining and a bearing for installing the tension roller. Power of the positive warp loosening mechanisms or the negative tension mechanisms is transmitted to the inner sides of the machine frames from the outer sides of the machine frames, and the complete air jet loom is reasonable in mechanism and stable and reliable in performance.
Description
Technical field
The present invention relates to a kind of air-jet loom, particularly relate to a kind of jet loom warp feeding device.
Background technology
The effect of let-off motion in whole weaving process of air-jet loom is according to the requirement of fabric tissue to filling density size, sends quantitative in time and has the warp thread of some tension, weave carrying out continuously of production to maintain in weaving process.In weaving process, warp tension whether uniformity when beam of a loom changes from big to small is the main standard weighing let-off motion performance quality, and the size of warp tension and stability, depend on the size of warp run-in to a great extent.Some float of fabric due to the warp let-off irregular and cause, generation as uneven weaving causes because the warp let-off of short-movie section is irregular, length code causes because the warp let-off of long segment is irregular, visible, and the performance quality of let-off motion directly has influence on the quality of fabric and carrying out continuously of production.
Let-off motion is classified can be divided into three basic forms of it from the mode of sending of warp thread, that is: passive type tension mechanism, half positive half passive type let-off motion and active type let-off motion.At present, no matter be active type let-off motion or passive type tension mechanism, it is in order to ensure the rigidity of tension roller, the strong point of tension roller is all in the inner side of roller bracing frame, namely the power of device is all arranged on the inner side of loom side, although such structural design ensure that the rigidity of roller, the loose warp time that cannot solve easing amount is difficult to the problem regulated, and this complete machine mechanism is unreasonable, reduces the overall performance of loom.Some air-jet looms solve the problems referred to above by directly lengthening the back rest in the mode extending to roller and support outside, but lengthen due to roller, and weight increases, reduced stiffness, and cause roller to be out of shape and cause warp tension to differ greatly, component wear is fast, service life reduction.
As can be seen here, prior art awaits further improving.
Summary of the invention
The present invention is the weak point avoiding above-mentioned prior art to exist, and provides a kind of jet loom warp feeding device.
The technical solution adopted in the present invention is:
A kind of jet loom warp feeding device, comprises the identical left frame of structure and right frame, is provided with jockey pulley and transition roller between left and right frame, and left and right frame includes lifting support and is arranged on the positioning seat above lifting support; Two positioning seats are separately installed with supporting mechanism of drag roller, each supporting mechanism of drag roller includes rocker, each rocker one end is all provided with rocking arm, the other end is all provided with movable arms; rocking arm is positioned at the outside of left and right frame; movable arms is positioned at the inner side of left and right frame; the outside of each rocking arm is connected with active type loose warp mechanism or passive type tension mechanism, each movable arms is provided with the lining for installing above-mentioned jockey pulley or bearing.
Arrange between described two positioning seats and also have tension-detecting mechanism, this tension-detecting mechanism comprises and is arranged on a left side, connecting axle between right frame and two lay respectively at connecting axle both sides and with the tension force fulcrum of connecting axle coaxial line, connecting axle and mentioned strain roller, transition roller be parallel to each other and jockey pulley between connecting axle and transition roller, each tension force fulcrum is all connected with connecting axle by shaft coupling support arm, each shaft coupling support arm is arranged on positioning seat respectively, wherein one end of a shaft coupling support arm is provided with connecting rod, this connecting rod is connected with lifting support and connecting rod is provided with tension pick-up, between above-mentioned rocker and positioning seat, self-aligning bearing is provided with between rocker and shaft coupling support arm.
The left and right two ends of described jockey pulley are separately installed with roller arrestment mechanism, this roller arrestment mechanism comprises yoke-like device and yoke-like device location-plate, yoke-like device is nested with the one end at jockey pulley, yoke-like device location-plate is connected with rocking arm, and one end of yoke-like device is fastened on yoke-like device location-plate by set bolt, the other end is connected with yoke-like device location-plate by adjusting bolt.
The loose warp bar that described active type loose warp mechanism comprises loose warp assembly and is connected with rocking arm, loose warp assembly comprises loose warp dish, one end of loose warp bar is connected with rocking arm by oscillating bearing, the other end is connected with loose warp dish by telescopic connection bar, in loose warp dish, rolling bearing is installed, be provided with eccentric bushing in the inner ring of rolling bearing, eccentric bushing is connected with loom driving shaft.
Described passive type tension mechanism comprises connecting plate and tension rail, connecting plate is fixed on positioning seat, connecting plate is provided with rotating rotating fulcrum, rotating fulcrum offers the through hole that can pass for tension rail, one end and the above-mentioned rocking arm of tension rail are hinged, and the other end is equipped with tension spring and for carrying out spacing adjusting nut to tension spring.
Elastic-friction sheet is provided with between described yoke-like device and jockey pulley.
The plane at contact surface place and the central axis of jockey pulley of described yoke-like device and yoke-like device location-plate are parallel to each other.
The outside of described left and right frame is provided with scale plate.
The diameter of axle of described connecting axle is less than the roller footpath of jockey pulley.
Owing to have employed technique scheme, the beneficial effect acquired by the present invention is:
The power of active type loose warp mechanism and passive type tension mechanism is delivered to inner side from the outside of frame by the present invention, the strong point of warp tension roller is in the inner side of frame, while ensure that roller rigidity of support, solve the problem of easing amount existing for original let-off motion and loose warp Timing difficulty, make loom structure more reasonable, improve the overall performance of loom.
Accompanying drawing explanation
Fig. 1 is the structural representation of the jet loom warp feeding device with active type loose warp mechanism.
Fig. 2 is the rearview of the jet loom warp feeding device with active type loose warp mechanism.
Fig. 3 is the top view of the jet loom warp feeding device with active type loose warp mechanism.
Fig. 4 is the left view of the jet loom warp feeding device with active type loose warp mechanism.
Fig. 5 is the A-A direction view of Fig. 2.
Fig. 6 is the F-F direction view of Fig. 5.
Fig. 7 is the B-B direction view of Fig. 2.
Fig. 8 is the C-C direction view of Fig. 2.
Fig. 9 is the D-D direction view of Fig. 4.
Figure 10 is the top view of the jet loom warp feeding device with passive type tension mechanism.
Figure 11 is the left view of the jet loom warp feeding device with passive type tension mechanism.
Wherein,
1, frame 101, left frame 102, right frame 103, lifting support 104, positioning seat 105, transition roller 106, jockey pulley 2, supporting mechanism of drag roller 201, rocker 202, rocking arm 203, movable arms 3, tension-detecting mechanism 301, connecting axle 302, shaft coupling support arm 303, tension force fulcrum 304, connecting rod 305, tension pick-up 306, self-aligning bearing 307, first rolling bearing 4, roller arrestment mechanism 401, yoke-like device location-plate 402, yoke-like device 403, elastic-friction sheet 404, set bolt 405, adjusting bolt 5, active type loose warp mechanism 501, loose warp dish 502, telescopic connection bar 503, loose warp bar 504, eccentric bushing 505, locking strap 506, second rolling bearing 507, oscillating bearing 6, passive type tensioner 601, connecting plate 602, rotating fulcrum 603, tension rail 604, tension spring 605, adjusting nut 7, scale plate
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in further detail, but the present invention is not limited to these embodiments.
As shown in Figures 1 to 6, a kind of jet loom warp feeding device, comprise frame 1, described frame 1 comprises the identical left frame of structure 101 and right frame 102, the outside of described left and right frame is provided with scale plate 7, jockey pulley 106 and transition roller 105 are installed, the positioning seat 104 that left and right frame includes lifting support 103 and is arranged on above lifting support 103 between left and right frame, two positioning seats 104 are separately installed with supporting mechanism of drag roller 2, each supporting mechanism of drag roller 2 includes rocker 201, one end of each rocker 201 is all provided with rocking arm 202, the other end is all provided with movable arms 203, rocking arm 202 is positioned at a left side, the outside of right frame, movable arms 203 is positioned at a left side, the inner side of right frame, under the connection of rocker 201, movable arms 203 and rocking arm 202 just link together and carry out synchronous axial system, the outside of each rocking arm 202 is connected with active type loose warp mechanism 5 or passive type tension mechanism 6, each movable arms 203 is provided with the lining for installing above-mentioned jockey pulley 106 or bearing, arrange between described two positioning seats 104 and also have tension-detecting mechanism 3, this tension-detecting mechanism 3 comprises and is arranged on a left side, connecting axle 301 between right frame and two lay respectively at connecting axle 301 both sides and with the tension force fulcrum 303 of connecting axle 301 coaxial line, tension force fulcrum 303 is arranged on above-mentioned positioning seat by the first rolling bearing 307, the diameter of axle of connecting axle is less than the roller footpath of jockey pulley, connecting axle and mentioned strain roller, transition roller be parallel to each other and jockey pulley between connecting axle and transition roller, each tension force fulcrum is all connected with connecting axle by shaft coupling support arm, each shaft coupling support arm is arranged on positioning seat 104 respectively, wherein one end of a shaft coupling support arm 302 is provided with connecting rod 304, this connecting rod 304 is connected with lifting support 103 and connecting rod 304 is provided with tension pick-up 305, tension pick-up 305 can experience the moment of torsion that tension force fulcrum 303 produces, between above-mentioned rocker 201 and positioning seat 104, self-aligning bearing 306 is provided with between rocker 201 and shaft coupling support arm 302.
The present invention's positioning seat 104 and shaft coupling support arm 302 support a rocker 201, the two ends of rocker 201 have self-aligning bearing to support, this supporting construction can allow the inside and outside strong point to have to move relative to small, that is rocker 201 is allowed can to have slight inclination, although the centre of support point of the self-aligning bearing between rocker 201 and positioning seat 104 is fixing, but not having influence on self-aligning bearing between rocker 201 and shaft coupling support arm 302 can slightly movement, this supporting construction ensure that the rotation trend of shaft coupling support arm 302 is unaffected, pressure from warp tension on jockey pulley 106 just can pass through movable arms 203, rocker 201 is all delivered on shaft coupling support arm 302 and forms torque, the detection of tension pick-up 305 pairs of warp tensions also can be very accurately sensitive.It should be noted that, tension pick-up 305 is under the tension force effect varied in size, and its length variations is very small, negligible; In addition, left and right frame is linked together by connecting axle 301, can be delivered on tension pick-up 305 by the warp tension that whole weaving-machine tension roller 106 is experienced, and tension detect is also comprehensively reliably.The present invention utilizes the characteristic of self-aligning bearing, a rocker that can tilt arbitrarily 201 is supported; rocking arm 202 is also arranged between two bearings; rationally axle supports and parts are arranged and be ensure that support strength; also ensure that simultaneously and to run up and can be accurately and reliably compared with the positive easing motion under hightension state and tension detect performance; what needs further illustrated is; after jockey pulley 106, the route of a transition roller 105 pairs of warp thread generally will be had to position, constant to ensure the pressure that warp thread acts on jockey pulley 106 with 2.
As Fig. 2, shown in Fig. 7 and Fig. 8, for the control that jockey pulley 106 rotates, existing air-jet loom is generally rotate or maintain static, it is uneven that complete motionless meeting causes jockey pulley 106 to wear and tear, rotate some fabric knitting undesirable again flexibly, therefore, existing jockey pulley 106 brake structure can not meet the needs of user, in the present invention, a left side for jockey pulley 106, right two ends are separately installed with roller arrestment mechanism 4, this roller arrestment mechanism 4 comprises yoke-like device 402 and yoke-like device location-plate 401, the plane at contact surface place and the central axis of jockey pulley 106 of yoke-like device 402 and yoke-like device location-plate 401 are parallel to each other, yoke-like device 402 is nested with the one end at jockey pulley 106, elastic-friction sheet 403 is provided with between yoke-like device 402 and jockey pulley 106, yoke-like device location-plate 401 is connected with rocking arm 202, one end of yoke-like device 402 is fastened on yoke-like device location-plate 401 by set bolt 404, the other end is connected with yoke-like device location-plate 401 by adjusting bolt 405.In the present invention, adjusting bolt 405 and set bolt 404 by yoke-like device 402 and elastic-friction sheet 403 banding on the periphery of tension roller, elastic force due to elastic-friction sheet 403 can realize the slow change of banding strength, by the brake force that adjustment adjusting bolt 405 can realize required for different fabric, the plane at contact surface place of yoke-like device 402 and yoke-like device location-plate 401 and the central axis of jockey pulley 106 are designed to be parallel to each other and can reduce arrestment mechanism pair roller barrel and rotate and affect flexibly.
As shown in Figure 3 and Figure 9, the loose warp bar 503 that described active type loose warp mechanism 5 comprises loose warp assembly and is connected with rocking arm 202, loose warp assembly comprises loose warp dish 501, one end of loose warp bar 503 is connected with rocking arm 202 by oscillating bearing 507, the other end is connected with loose warp dish 501 by telescopic connection bar 502, can according to weaving process need carry out length adjustment, second rolling bearing 506 is installed in loose warp dish 501, in the inner ring of the second rolling bearing 506, eccentric bushing 504 is installed, eccentric bushing 504 is connected with loom driving shaft, eccentric bushing 504 after adjustment angle is locked and loom driving shaft synchronous axial system by locking strap 505, eccentric bushing 504, loose warp bar 503, rocking arm 202 and loom body form quadric chain, during loom running under the effect of driving shaft, eccentric bushing 504 can drive rocking arm 202 to swing, and then drive jockey pulley 106 active roll, formation positive easing moves.
As shown in Figure 10 and Figure 11, described passive type tension mechanism 6 comprises connecting plate 601 and tension rail 603, connecting plate 601 is fixed on positioning seat 104, connecting plate 601 is provided with rotating rotating fulcrum 602, rotating fulcrum 602 offers the through hole that can pass for tension rail 603, one end and the above-mentioned rocking arm 202 of tension rail 603 are hinged, the other end is equipped with tension spring 604 and for carrying out spacing adjusting nut 605 to tension spring 604, the pressure of the warp tension that jockey pulley 106 is subject to is delivered on tension spring 604 by rocker 201, the adjustment to warp tension just can be realized by adjustment adjusting nut 605.
The part do not addressed in the present invention adopts or uses for reference prior art and can realize.
In describing the invention, it will be appreciated that, term " on ", D score, "front", "rear", "left", "right", " level ", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
Employ the terms such as such as left frame 101, lifting support 103, supporting mechanism of drag roller 2, movable arms 203, tension-detecting mechanism 3, tension force fulcrum 303, roller arrestment mechanism 4, yoke-like device location-plate 401, elastic-friction sheet 403, active type loose warp mechanism 5, locking strap 505, passive type tensioner 6, tension spring 604, scale plate 7 although more herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Need to further illustrate, specific embodiment described herein is only to spiritual example explanation of the present invention.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (8)
1. a jet loom warp feeding device, comprise the identical left frame of structure and right frame, left, jockey pulley and transition roller are installed between right frame, it is characterized in that: left, right frame includes lifting support and is arranged on the positioning seat above lifting support, two positioning seats are separately installed with supporting mechanism of drag roller, each supporting mechanism of drag roller includes rocker, one end of each rocker is all provided with rocking arm, the other end is all provided with movable arms, rocking arm is positioned at a left side, the outside of right frame, movable arms is positioned at a left side, the inner side of right frame, the outside of each rocking arm is connected with active type loose warp mechanism or passive type tension mechanism, each movable arms is provided with the lining for installing above-mentioned jockey pulley or bearing, arrange between described two positioning seats and also have tension-detecting mechanism, this tension-detecting mechanism comprises and is arranged on a left side, connecting axle between right frame and two lay respectively at connecting axle both sides and with the tension force fulcrum of connecting axle coaxial line, connecting axle and mentioned strain roller, transition roller be parallel to each other and jockey pulley between connecting axle and transition roller, each tension force fulcrum is all connected with connecting axle by shaft coupling support arm, each shaft coupling support arm is arranged on positioning seat respectively, wherein one end of a shaft coupling support arm is provided with connecting rod, this connecting rod is connected with lifting support and connecting rod is provided with tension pick-up, between above-mentioned rocker and positioning seat, self-aligning bearing is provided with between rocker and shaft coupling support arm.
2. a kind of jet loom warp feeding device according to claim 1, it is characterized in that: the left and right two ends of described jockey pulley are separately installed with roller arrestment mechanism, this roller arrestment mechanism comprises yoke-like device and yoke-like device location-plate, yoke-like device is nested with the one end at jockey pulley, yoke-like device location-plate is connected with rocking arm, and one end of yoke-like device is fastened on yoke-like device location-plate by set bolt, the other end is connected with yoke-like device location-plate by adjusting bolt.
3. a kind of jet loom warp feeding device according to claim 1, it is characterized in that: the loose warp bar that described active type loose warp mechanism comprises easing mechanism and is connected with rocking arm, easing mechanism comprises loose warp dish, one end of loose warp bar is connected with rocking arm by oscillating bearing, the other end is connected with loose warp dish by telescopic connection bar, in loose warp dish, rolling bearing is installed, be provided with eccentric bushing in the inner ring of rolling bearing, eccentric bushing is connected with loom driving shaft.
4. a kind of jet loom warp feeding device according to claim 1, it is characterized in that: described passive type tension mechanism comprises connecting plate and tension rail, connecting plate is fixed on positioning seat, connecting plate is provided with rotating rotating fulcrum, rotating fulcrum offers the through hole that can pass for tension rail, one end and the above-mentioned rocking arm of tension rail are hinged, and the other end is equipped with tension spring and for carrying out spacing adjusting nut to tension spring.
5. a kind of jet loom warp feeding device according to claim 2, is characterized in that: be provided with elastic-friction sheet between described yoke-like device and jockey pulley.
6. a kind of jet loom warp feeding device according to claim 2 or 5, is characterized in that: the plane at contact surface place and the central axis of jockey pulley of described yoke-like device and yoke-like device location-plate are parallel to each other.
7. a kind of jet loom warp feeding device according to claim 1, is characterized in that: the outside of described left and right frame is provided with scale plate.
8. a kind of jet loom warp feeding device according to claim 1, is characterized in that: the diameter of axle of described connecting axle is less than the roller footpath of jockey pulley.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410109916.0A CN103898668B (en) | 2014-03-24 | 2014-03-24 | Let-off device of air jet loom |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410109916.0A CN103898668B (en) | 2014-03-24 | 2014-03-24 | Let-off device of air jet loom |
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| CN103898668A CN103898668A (en) | 2014-07-02 |
| CN103898668B true CN103898668B (en) | 2015-07-08 |
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| CN201410109916.0A Active CN103898668B (en) | 2014-03-24 | 2014-03-24 | Let-off device of air jet loom |
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| CN104178890B (en) * | 2014-09-18 | 2015-09-30 | 中安（天津）航空设备有限公司 | A kind of let-off motion of Rapier looms |
| CN106435969B (en) * | 2016-10-31 | 2018-11-16 | 青岛天一集团红旗纺织机械有限公司 | A kind of water-jet loom active type loose warp device |
| CN107475873A (en) * | 2017-10-10 | 2017-12-15 | 吴江市日春纺织机械有限公司 | A kind of warp let-off tension-adjusting gear |
| CN108950827B (en) * | 2018-07-13 | 2023-09-29 | 青岛天一红旗纺机集团有限公司 | Back beam supporting device of external loose warp |
| CN109402850A (en) * | 2018-12-27 | 2019-03-01 | 山东日发纺织机械有限公司 | A kind of loom and its beam of a loom bearing fixing device |
| CN110093708B (en) * | 2019-05-15 | 2024-02-13 | 广东康特斯织造装备有限公司 | Loom warp tension torque detection device |
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Address after: 266400 No. 188 Yinzhushan Road, Huangdao District, Qingdao City, Shandong Province Patentee after: Qingdao Tianyihongqi Textile Machinery Group Co., Ltd. Address before: 266400 Lingang 1 road 888, Lingang Economic Development Zone, Huangdao District, Qingdao, Shandong Patentee before: Hongqi Textile Machinery Co., Ltd., Tianyi Group, Qingdao |