Summary of the invention
The purpose of this utility model is to provide a kind of polyester webs loom to overcome the deficiency that prior art exists.
Overall structure of the present utility model is:
The polyester webs loom comprises control device, transmission device, actuating unit, described actuating unit comprises weft insertion device, beating-up mechanism, spooler, warp-feeding mechanism, wherein spooler comprises work beam 26 and the backer roll 27 that is driven synchronizing shaft 28 drives by drive unit, work beam 26 is at least two, work beam 26 is symmetricly set in the both sides up and down of backer roll 27 in the same way, and the outer surface of backer roll 27 cooperates with the outer surface of work beam 26 is circumscribed respectively; Warp-feeding mechanism comprise by being arranged in parallel of driving of warp let-off driving mechanism 31 through axle 33, adapter sleeve be loaded on through axle 33 outer surfaces and laminate vertically setting through coiling 32; Beating-up mechanism is spaced apart in bent axle 6 and be assemblied in quadric chain on the base plate 25, weft insertion device comprises control device and picking motion and the sheet shuttle 38 that is symmetricly set in frame 1 left and right sides, and the two ends, the left and right sides of sheet shuttle 38 are respectively equipped with A, B two shuttles folder.
Specific structural features of the present utility model also has:
The swing arm 29 of passing through of work beam 26 both sides in the described spooler is connected with the piston that drives hydraulic cylinder 30.
Described warp-feeding mechanism comprise respectively by being parallel to each other of driving of warp let-off driving mechanism 31 through axle 33, be segmentation structure through coiling 32, be set with key to be connected in through axle 33 outer surfaces, adjacent between coiling 32 for laminating cooperation.
Control device in the described weft insertion device comprises the shuttle box 15 that is arranged on frame 1 left and right sides, be arranged at brake cylinder 17, clamp cylinder 16, the unwrapping wire cylinder 18 at shuttle box 15 places, between shuttle box 15 and weft accumulator, be provided with and pass latitude cylinder 20, return latitude cylinder 21, press latitude cylinder 19, Tension Control and testing agency.
Bent axle 6 in the described beating-up mechanism is a segmentation structure, adopts shaft coupling 5 to connect between its two neighboring sections.
Also comprise a shedding mechanism in the described actuating unit, this shedding mechanism comprises transmission device, the comprehensive control device of choosing, heald lifting device, wherein transmission device comprises the conjugate cam 7 that fixedly is assemblied on the bent axle 6, be arranged at the tappet 8 of conjugate cam 7 tops and lower end and conjugate cam 7 upper surface roof pressures, the left and right broaching tool 10,11 that is connected by oscillating arm mechanisms 9 with tappet 8, big blade 13 vertically is provided with, its middle part is hinged with back shaft 14, and left and right broaching tool 10,11 connects by drag hook 12 and big blade 13 tops.
Described choosing is combined control device and is selected air control unit for use.
Described heald lifting device comprises the upper and lower pull bar 36,37 that is slidingly matched with track 34, and the two ends of chain 35 are connected with the drag hook that is arranged on upper and lower pull bar 36,37 surfaces and the two ends up and down of heald frame respectively.
Described quadric chain is made up of L shaped lay sword 22, crank throw 23, big connecting rod 24, the active cooperation in the upper end of the lower end of wherein L shaped lay sword 22 and big connecting rod 24, big connecting rod 24 cooperates with the active suit of the bearing pin of crank throw 23, the top of crank throw 23 and bent axle 6 tight fits.
The obtained technological progress of the utility model is:
Overall construction design of the present utility model is reasonable, and parts mix selection is proper, can be widely applicable for the braiding of the polyester webs of plurality of specifications.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
The overall structure of present embodiment as shown, polyester webs loom wherein, comprise control device, transmission device, actuating unit, described actuating unit comprises shedding mechanism, weft insertion device, beating-up mechanism, spooler, warp-feeding mechanism, wherein spooler comprises work beam 26 and the backer roll 27 that is driven synchronizing shaft 28 drives by drive unit, work beam 26 is two, work beam 26 is symmetricly set in the both sides up and down of backer roll 27 in the same way, and the outer surface of backer roll 27 cooperates with the outer surface of work beam 26 is circumscribed respectively; Warp-feeding mechanism comprise by being arranged in parallel of driving of warp let-off driving mechanism 31 through axle 33, the suit key be matched with through axle 33 outer surfaces and laminate vertically setting through coiling 32; Beating-up mechanism is spaced apart in bent axle 6 and be assemblied in quadric chain on the base plate 25, and weft insertion device comprises control device and the picking motion that is symmetrical arranged with frame 1 left and right sides, sheet shuttle 38, and two ends, sheet shuttle 38 left and right sides are respectively equipped with A, B two shuttles folder.
Work beam 26 both sides in the spooler be connected with swing arm 29, the lower end of swing arm 29 is connected with the piston that drives hydraulic cylinder 30.
Warp-feeding mechanism respectively by being parallel to each other of driving of warp let-off driving mechanism 31 through axle 33, be segmentation structure through coiling 32, be set with key to be connected in through axle 33 outer surfaces, adjacent between coiling 32 for laminating cooperation.
Control device in the weft insertion device comprises the shuttle box 15 that is arranged on frame 1 left and right sides, be arranged at brake cylinder 17, clamp cylinder 16, the unwrapping wire cylinder 18 at shuttle box 15 places, between shuttle box 15 and weft accumulator, be provided with and pass latitude cylinder 20, return latitude cylinder 21, press latitude cylinder 19, Tension Control and testing agency.
Bent axle 6 in the beating-up mechanism is a segmentation structure, adopts shaft coupling 5 to connect between its two neighboring sections.
Shedding mechanism comprises driving section mechanism, the comprehensive control device of choosing, heald lifting device, wherein transmission device comprises the conjugate cam 7 that fixedly is assemblied on the bent axle 6, be arranged at the tappet 8 of conjugate cam 7 tops and lower end and conjugate cam 7 upper surface roof pressures, the left and right broaching tool 10,11 that is connected by oscillating arm mechanisms 9 with tappet 8, big blade 13 vertically is provided with, its middle part is hinged with back shaft 14, and left and right broaching tool 10,11 connects by drag hook 12 and big blade 13 tops.
Choosing is combined control device and is selected air control unit for use.
Heald lifting device comprises the upper and lower pull bar 36,37 that is slidingly matched with track 34, and the two ends of chain 35 are connected with the drag hook that is arranged on upper and lower pull bar 36,37 surfaces and the upper/lower terminal of heald frame respectively.
The operation principle of each mechanism of the present utility model is:
1, weft insertion device
Because overweight, the super wide and wire side of this machine is had relatively high expectations, this machine has adopted the filling insertion way of large-scale projectile shuttle, is finished jointly by throw a spear system and atmospheric control of hydraulic pressure.The bilateral wefting insertion, the both sides control system is identical.Sheet shuttle 38 two ends are respectively equipped with A, B two shuttles folder, are used for clamping left and right sides weft yarn.Be provided with shuttle box 15 respectively in the loom both sides, as Fig. 4, shuttle box 15 places have all disposed brake cylinder 17, clamp cylinder 16, unwrapping wire cylinder 18, control braking, folder, the unwrapping wire action of sheet shuttle 38 respectively and pass the parallel action, between shuttle box 15 and weft accumulator, both sides respectively are provided with and pass latitude cylinder 20, return latitude cylinder 21, press latitude cylinder 19, Tension Control and checkout gear.When sheet shuttle 38 when left side shuttle box 15 travels forward with reed, the A folder is opened in clamp cylinder 16 actions of left side shuttle box 15, A clamps and passs the weft yarn that latitude cylinder 20 is passed, at this moment, press latitude cylinder 19 to lift, return latitude cylinder 21 piston rods retraction, make weft yarn be in a kind of state that can pull out smoothly, at this moment, sheet shuttle 38 moves backward with reed, when arriving certain angle, throw a spear part action of a left side, launch sheet shuttle 38, sheet shuttle 38 passes whole fabric width by A folder clipped weft yarn and arrives right side shuttle box 15, at this moment, 17 actions of right side shuttle box 15 brake cylinders, the shuttle braking that is positioned, this moment, reed began beating motion forward, and the right side is passed latitude cylinder 20 and is begun action, return latitude cylinder 21 retractions simultaneously, press latitude cylinder 19 to mention, the B folder is opened in 16 actions of clamp cylinder, prepares clamping right side weft yarn.When reed arrives the front center position, to pass latitude cylinder 20 and just in time parallel is passed in the B folder of sheet shuttle 38, clamp cylinder 16 discharges the B folder, so B clamps parallel, the A folder is opened simultaneously, discharges last weft yarn.Left side shuttle box 15 place's latitudes are cut off parallel, press latitude cylinder 19 to begin to press down, return latitude cylinder 21 simultaneously and stretch out, retract last weft yarn, what make that weft end is in just that the left side passs latitude cylinder 20 passs line fork place, prepare wefting insertion for the third time, this moment, reed began to move backward, after arriving certain angle, and the part action of throwing a spear of right side hydraulic pressure, sheet shuttle 38 by right side shuttle box 15 shuttle box 15 motions to the left, is finished wefting insertion for the second time by B folder clipped weft yarn.In whole wefting insertion process, weft tension is owing to there is the control of tension controller to remain unanimity, and left and right sides weft detectors and sensor detect the weft yarn in the wefting insertion process simultaneously, stops in case generation crapand or staplings just can both stand.
2, beating-up mechanism
This mechanism has adopted five group of four connecting rod beating-up mechanism, according to the polyester webs technological requirement, should satisfy the power of the beating up requirement of 2000kg/m, under the prerequisite of holding 16 pages of heald frames, drawn back the horizontal range of reed with the bolt of leading along by hand, making lay sword 22 still is that the back heart does not collide with heald frame at front center.In addition, in transmission, between axis and bent axle 6, adopted Eccentric Gear-drive, bent axle 6 is non-uniform rotation, and when slay during from back mind-set front center motion, acceleration changes rapidly, the movement velocity of slay increases, and the power of beating up increases, thereby guarantees this kind particular fabric power demand of beating up.When slay in the back during heart, relatively the dead time longer, be beneficial to wefting insertion.Another outstanding characteristics of this mechanism are exactly bent axle 6 for sectional type, are connected by positive coupling 5 between section and the section, become the integral body that transmission is moved, installation, easy to adjust.Adopted the baking packing technique between bent axle 6 and the crank throw 23, easy to process, assembly precision is high, has guaranteed the harmonious of five groups of beating-up mechanism actions.In addition, in the motion process of beating-up mechanism, swing by generation activity balance arms such as small rod, joint angle arm and adjustment cams, the design of this interlock type makes tighter that the swing of movable balance arm cooperates with the periodically variable balance of warp tension, adjusting cam can adjust up and down, to adjust the hunting range of movable balance arm, adapt to the requirement of different fabrics.
3, shedding mechanism
This shedding mechanism is the dobby shedding mechanism of conjugate cam 7 control, divides left and right sides multi-arm, is positioned at the loom both sides, control 1,3,5 respectively ... ..15 the page or leaf heald frame and 2,4,6 ... 16 pages of heald frames, concrete operation principle is as follows:
(1) running part
The dobby shedding motion of mechanism is controlled by the conjugate cam 7 that the two main wall plates outside is packed on the bent axle 6 respectively, as Fig. 3, the both sides Synchronous Transmission, by tappet 8, the left and right broaching tool 10,11 of oscillating arm mechanisms 9 promotions separately, make it be the counter motion of " eight " font, the stroke of broaching tool 10,11 can be adjusted by the connecting portion that changes adjustment connecting rod and swing arm, thereby regulate openings of sizes.The big blade 13 that drags integrated box movement can rotate around its back shaft 14, there is a drag hook 12 to be hinged with it on big blade 13 tops, drag hook 12 is with respect to the cutter blade left-right symmetry, its right side links to each other with the cylinder piston rod that control section is combined in choosing, when broaching tool 10,11 promotes drag hook, drive big blade 13 simultaneously and outside machine or in the machine, move, thereby form opening.
(2) control section is combined in choosing
Choosing is combined control section and is controlled by pneumatic system, at first, pneumatic system is accepted the fabric tissue information command that PLC transmits, by electromagnetic valve, the action of cylinder control drag hook, with regard to right multi-arm, when drag hook was boosted by cylinder, the right broaching tool that it is moved from left to right promoted, therefore, big blade clockwise rotates outside machine, and heald frame is raised, and forms top line, when drag hook is retracted by cylinder, lift in the drag hook left side, and Zola's cutter that it is moved from right to left promotes, and the cutter blade inverse time is rotated, heald frame descends, and forms lower layer warp yarns.
(3) shedding part
The upper-lower position of multi-arm cutter blade links to each other with upper and lower pull bar 36,37 respectively, and upper and lower pull bar 36,37 moves in track separately respectively.Fixing the little drag hook of many groups on the upper and lower pull bar 36,37 respectively, be fixed together with chain 35 respectively, chain 35 1 ends are parallel with upper and lower pull bar 36,37, and its other end is walked around and become vertical direction behind the sprocket wheel that is fixed on crossbeam or the base and link to each other up and down with heald frame respectively.When upper connecting rod 36 is spurred from left to right, the drag hook pulling chain that is fixed thereon, heald frame is raised, lower link 37 right-to-lefts motion simultaneously, lower chain is released, on the contrary, and when upper connecting rod 36 right-to-lefts move, last chain is released, and lower chain works, and heald frame descends.The design of this kind shedding mode has guaranteed that the motion of heald frame is in poised state all the time, has improved the force-bearing situation of warp thread.
4, spooler
Spooler is that directly actuated continous mode three rollers of electrode batch, and three roller both sides are furnished with the synchromesh gear of batching and worm screw, worm gear reducer respectively.As Fig. 6, both sides worm screw, worm gear reducer link to each other with synchronizing shaft 28 by rigid coupling, and therefore, work beam 26 both sides obtain to drive simultaneously, and this drive system has guaranteed that work beam 26 obtains balanced exercise performance on whole fabric width direction.Work beam 26 surfaces are coated with the rubber skin, finish by the pressure of the frictional force on fabric and work beam 26 surfaces and backer roll 27 and batch.The pressure of backer roll 27 is from hydraulic system, respectively there is a swing arm 29 supporting at the two ends of backer roll 27, as Fig. 6, the lower end of swing arm 29 links to each other with the piston that drives hydraulic cylinder 30 respectively, 30 actions of two hydraulic cylinders synchronously, by same Hydraulic Station control, when the piston rod of hydraulic cylinder 30 stretches out, backer roll 27 is pressed to the surface of work beam 26, after fabric tension that pressure produced reaches technology tension force, hydraulic motor stops operating, by pressure-retaining system pressurizes such as accumulators, so in whole weaving process, constant pressure, avoided coiling tension fluctuation that causes because of other reasons etc., thereby guaranteed that forming net density is even, consistent.
5, warp-feeding mechanism
This machine is an electronic warp feeding, as Fig. 7, adopts double ends axle construction, and by independent Electric Machine Control, front and back are arranged in parallel respectively.Every evenly is provided with three supporting disks on axle 33, supporting by the two rollers on the base, making that sending in the process of warp thread through axle 33 can brisk rotation, on axle 33, can install 20 through coiling 32 for every, through coil 32 be one with the domestic and international general small-sized aluminum casting of warping machines, warping is very convenient.