The Tucked-in selvage apparatus of terry cloth loom
Technical field
The invention belongs to loom auxiliary equipment technical field, especially relevant with a kind of Tucked-in selvage apparatus of terry cloth loom.
Background technology
A fluffing braiding process is formed by many knitting devices during terry cloth loom braiding.Other weft knittings except last latitude belongs to normal braiding of each fluffing braiding process are woven to fluffing braiding, the beating-up stroke of reed is less, fluffing braiding is become to knitting last latitude, the beating-up stroke of reed becomes large, push all weft yarns to fell together simultaneously, weft yarn has just been clamped wool warp and has been slided along the body warp that tension force is larger, and the wool warp that rises that hair is sent through beam of a loom forms looped pile at fabric face.For adapting to the requirement of weaving plain edge cloth, loom is set up Tucked-in selvage apparatus.Application number is 03277443.5 patent discloses and a kind ofly adopt pure conjugate cam to drive weft yarn clamping, cut off and hook the mechanical cam formula Tucked-in selvage apparatus of yarn, because cam curve is fixing, everything rule is all design according to normal requirements of weaving process, and the towel being highly less than 5mm that cannot be applicable to fluff is weaved.
Summary of the invention
Object of the present invention is intended to solve existing machinery conjugate cam type Tucked-in selvage apparatus cannot adapt to the woven defect of towel, provides a kind of Tucked-in selvage apparatus that can adapt to the terry cloth loom of towel fluffing braiding.
For this reason, the present invention is by the following technical solutions: the Tucked-in selvage apparatus of terry cloth loom, comprise casing, camshaft, upper scissors expansion link, lower scissors expansion link, crochet hook expansion link, drive the first cam mechanism of lower scissors expansion link axial reciprocating movement, drive the second cam mechanism of crochet hook expansion link axial reciprocating movement, drive the 3rd cam mechanism that crochet hook expansion link rotates, be fixedly mounted on the scissors base of lower scissors expansion link front end, lower end is installed on the grip slipper of scissors base by rotating shaft support and is fixedly installed in the latch needle mechanism of crochet hook expansion link front end, scissors base is installed lower scissors sheet, grip slipper is installed clamping device and the upper shear blade corresponding with lower scissors sheet, grip slipper upper end is connected by moving connecting mechanism with upper scissors expansion link, grip slipper rotation centered by described rotating shaft is driven by upper scissors expansion link, shear blade and lower scissors sheet closed and opening in realization, camshaft is installed on casing by bearings, first cam mechanism, second cam mechanism and the 3rd cam mechanism are all arranged in described chassis cavity and all comprise a conjugate cam, with conjugate cam, the roller mount of installing roller is supported to a pair roller of joining and one, conjugate cam all fixed cover is loaded on described camshaft, upper scissors expansion link, lower scissors expansion link and crochet hook expansion link are arranged on casing and also can move axially, the roller mount of the first cam mechanism is fixedly installed in lower scissors expansion link, the roller mount of the second cam mechanism arranges axis hole and is placed in crochet hook expansion link, crochet hook expansion link is arranged the axial limit structure that pair roller seat carries out axial limiting, the roller mount of the 3rd cam mechanism is a swing arm, swing arm rotation center is installed by the arm shaft that is installed on described casing and is supported, described crochet hook expansion link is movably installed with a rotation external member, rotate between external member and crochet hook expansion link and be provided with circumferential limiting structure, rotate external member can rotate in a circumferential direction can not move axially relative to crochet hook expansion link, swing arm is installed a back shaft, back shaft is hinged with connecting rod, connecting rod is hinged with the pin joint rotated on external member outer peripheral face, swing arm drives upper and lower rotation by the 3rd cam mechanism, the rotation drivening rod lifting of swing arm, thus the pin joint of drivening rod and rotation external member is elevated, driven rotary external member rotates, thus drive crochet hook expansion link to rotate, it is characterized in that, described Tucked-in selvage apparatus also comprises the upper scissors expansion link driving mechanism driving upper scissors expansion link axial reciprocating movement, upper scissors expansion link driving mechanism comprises control system, motor, eccentric disc, slide block and slide, motor is installed on casing, eccentric disc is installed on machine shaft, slide block is supported by the bearing pin rotary type be installed on eccentric disc eccentric orfice and installs, slide is fixedly connected with upper scissors expansion link, and move axially guiding by the guide post be fixedly installed, slide arranges chute, slide block is embedded in chute, eccentric disc rotation is driven by the rotating of motor, thus band movable slider makes circular arc displacement movement, slide is driven axially to produce displacement at upper scissors expansion link, realize driving upper scissors expansion link axial reciprocating to move, motor is controlled to associate with loom main shaft to rotate by control system, control system includes normal braiding Electric Machine Control program and fluffing braiding Electric Machine Control program, by controlling the incidence relation of machine shaft and loom main shaft angle, make normal woven condition different with the angle relation relation of fluffing woven condition, realize in normal woven condition different with the upper scissors expansion link stroke of fluffing woven condition, when fluffing braiding, upper shear blade and lower scissors sheet do not produce to shear and close, when normally weaving, the grip slipper rotation of shear blade in the drive installation of upper scissors expansion link, make shear blade and lower scissors sheet produce shearing to close, cut off weft yarn loose thread.
As to technique scheme supplement and perfect, the present invention also comprises following technical characteristic.
Described in the programme-control of described fluffing braiding Electric Machine Control, motor positive and inverse angle is less than motor positive and inverse angle described in the programme-control of normal braiding Electric Machine Control all the time, realizes the stroke that the stroke of scissors expansion link under normal woven condition is greater than the upper scissors expansion link under normal woven condition.
Described casing arranges pin hole, the axially movable technique latch of plug-in mounting in pin hole, described eccentric disc outer peripheral face is provided with the technique latch groove corresponding with technique latch, carry out the setting of eccentric disc benchmark position by technique latch insertion process latch groove, the benchmark realizing motor angle and loom main shaft angle relation sets.
Described rotation external member comprises rotary sleeve and movable set in the installation sleeve of rotary sleeve, rotary sleeve can rotate relative to installation sleeve, rotary sleeve arranges through hole and is set in crochet hook expansion link, rotary sleeve is arranged pin joint and rod hinge connection, installation sleeve is fixedly installed in casing, and described circumferential limiting structure is mutually to the plane being arranged at the plane on crochet hook expansion link outer peripheral face and being arranged on rotary sleeve through-hole wall of joining.
Described roller mount is all by the guide post mobile guide being fixedly installed in casing.Described slide is by two guide post mobile guides, and wherein a guide post is simultaneously to described expansion link mobile guide.
Described lower scissors expansion link, upper scissors expansion link and each freedom one of the crochet hook expansion link axle bed be fixedly installed on casing is installed and is supported, axle bed arranges axis hole, and lower scissors expansion link, upper scissors expansion link and crochet hook expansion link are threaded onto in the axis hole of respective corresponding axle bed.
Described latch needle mechanism comprises crochet hook seat, crochet hook, crochet hook seat is fixed on crochet hook expansion link front end, crochet hook seat is arranged the elongated slot adapting to crochet hook, crochet hook arranges long slot bore, by the screw being threaded onto long slot bore, crochet hook is fixedly installed in elongated slot, crochet hook expansion link drives the rotation of crochet hook seat, realizes crochet hook and has been elevated the action of hook yarn along camber line.
Described clamping device comprises clamp springs, clamping movable leg, grip pin, clamping elevating lever, elastic force regulating block and briquetting, gripping pin is arranged on described grip slipper, grip on pin and elevating lever installing hole is set, clamping elevating lever is threaded onto in this elevating lever installing hole, clamping movable leg is fixed on clamping elevating lever lower end, with grip pin and match and form clamp port, clamp springs is set in clamping elevating lever, its lower end is pressed against clamping movable leg upper side, elastic force adjustment block is installed on clamping elevating lever and is pressed against the upper end of clamp springs, chucking power clamping movable leg being provided by spring force and being gripped between pin, can regulating spring elastic force by the installation site of adjustment elastic force adjustment block, thus adjustment chucking power, briquetting is fixed on described crochet hook bearing and is positioned at above clamping elevating lever top, the rotation of crochet hook bearing drives briquetting to be pressed against clamping elevating lever, make lifter rod lifting, realize clamp port opening and closing.
Described moving connecting mechanism also comprises scissors and drives slide block and take-up housing, take-up housing is fixedly installed in described upper scissors expansion link front end, scissors drives slide block to be supported by bearing pin and is installed on take-up housing, can rotate around bearing pin, described grip slipper arranges sliding chamber, and scissors drives slide block be arranged in described sliding chamber and coordinate spacing guiding by slideway and chute.
Described Tucked-in selvage apparatus also comprises a lower scissors expansion link, two crochet hook expansion links and a upper scissors expansion link, each root crochet hook expansion link front end is all provided with a latch needle mechanism, composition can realize the middle Tucked-in selvage apparatus of left and right tuck-in selvage braiding, be installed in described swing arm in the middle of described back shaft, two ends are a hinged connecting rod respectively, two connecting rods are corresponding hinged with the pin joint on the rotation external member outer peripheral face on a crochet hook expansion link separately, realize driving two crochet hook expansion links to rotate by the 3rd cam mechanism simultaneously; Described grip slipper is provided with a upper shear blade, the both sides of upper shear blade respectively arrange a set of clamping device, described scissors base are provided with a lower scissors sheet corresponding with upper shear blade.
Use the present invention can reach following beneficial effect: to drive the axially rectilinear movement of upper scissors expansion link by motor and the upper scissors expansion link driving mechanism of eccentric disc slide block mechanism composition, and realize multiple kind of angular range rotating in conjunction with control system program controlled motor, in realization, scissors expansion link possesses multiple different stroke, adapt to weaving of multiple product, especially adapt to the woven normal braiding of towel and fluffing braiding requirement.
Accompanying drawing explanation
Fig. 1 is the right of the present invention device outline drawing.
Fig. 2 is middle device outline drawing of the present invention.
Fig. 3 is the left side of the present invention device outline drawing.
Fig. 4 is the structure chart after the present invention removes casing.
Fig. 5 overlooks direction schematic diagram after the present invention removes casing.
Fig. 6 is upper scissors expansion link driving mechanism schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
As shown in FIG. 1 to 3, the present invention, according to the difference of webs number, have the right device, middle device and left side device three kinds of structures, but the basic structure of its Core Feature is all the same, and difference part is the quantity of crochet hook and the position of scissors.Basic structure of the present invention is for the right device, as shown in Fig. 4 ~ Fig. 6, comprise casing 1, camshaft 2, upper scissors expansion link 11, lower scissors expansion link 10, crochet hook expansion link 12, drive the first cam mechanism 8 of lower scissors bar expansion link 10 axial reciprocating movement, drive the second cam mechanism 7 of crochet hook expansion link 12 axial reciprocating movement, drive the 3rd cam mechanism 9 that crochet hook expansion link 12 rotates, the upper scissors expansion link driving mechanism of scissors expansion link 11 axial reciprocating movement in driving, be fixedly mounted on the scissors base 14 of lower scissors expansion link front end, lower end is installed on the grip slipper 13 of scissors base by rotating shaft support and is fixedly installed in the latch needle mechanism 3 of crochet hook expansion link front end.Camshaft 2 is installed on casing by bearings.Upper scissors expansion link 11, lower scissors expansion link 10 and crochet hook expansion link 12 are arranged on casing and also can move axially, crochet hook expansion link 12 is positioned at above scissors expansion link 11, upper scissors expansion link 11, lower scissors expansion link 10 and crochet hook expansion link 12 front end all pass casing 1, and the axle bed that each freedom one is fixedly installed in casing 1 supports, casing 1 is installed with a guide post corresponding and parallel with lower scissors expansion link 10, guide post corresponding and parallel with upper scissors expansion link 11, a guide post 6 corresponding and parallel with crochet hook expansion link.
First cam mechanism 8, second cam mechanism 7 and the 3rd cam mechanism 9 are all arranged in described chassis cavity and also all comprise a conjugate cam, support the roller mount of installing roller with conjugate cam to a pair roller of joining and one, and conjugate cam all fixed cover is loaded on camshaft 2.The roller mount of the first cam mechanism 8 arranges axis hole and pilot hole, is loaded on lower scissors expansion link 10, is placed in guide post by pilot hole by axis hole fixed cover; The roller mount of the second cam mechanism 7 arranges axis hole and pilot hole, is placed in crochet hook expansion link 12 by axis hole, is placed in guide post 6 by pilot hole, crochet hook expansion link 12 is arranged the axial limit structure that pair roller seat carries out axial limiting.The roller mount of the 3rd cam mechanism 9 is the swing arm of a L shape, form two legs, each leg installs a roller, L shape corner arranges axis hole as rotation center, swing arm rotation center is placed in one by axis hole and is installed on arm shaft on casing 1, a leg end portions of swing arm installs a back shaft, and back shaft is hinged with connecting rod; Crochet hook expansion link 12 rear end is movably installed with a rotation external member, rotate external member and comprise rotary sleeve and movable set in the installation sleeve of rotary sleeve, installation sleeve is fixedly installed in casing, rotary sleeve can rotate relative to installation sleeve, rotary sleeve arranges through hole and is set in crochet hook expansion link 12, axially through hole is in the same way as pin joint rotary sleeve to be arranged center line and rotary sleeve, and connecting rod lower end realizes hinged by the bearing pin and pin joint being threaded onto this through hole; Crochet hook expansion link 12 outer peripheral face arranges plane, rotary sleeve through-hole wall is arranged corresponding plane, two planes are to combo limiting structure circumferentially, make rotary sleeve can move axially can not rotate in a circumferential direction relative to crochet hook expansion link, swing arm drives upper and lower rotation by the 3rd cam mechanism, the rotation drivening rod lifting of swing arm, thus the pin joint of drivening rod and rotary sleeve is elevated, driven rotary cover rotates, thus drives crochet hook expansion link to rotate.
Scissors base 14 is installed lower scissors sheet 15, grip slipper 13 is installed clamping device and the upper shear blade 16 corresponding with lower scissors sheet, grip slipper upper end is connected by moving connecting mechanism with upper scissors expansion link, moving connecting mechanism comprises scissors and drives slide block and stir seat, stir seat and be fixedly installed in scissors expansion link front end, scissors drives slide block to be installed on by bearing pin support and stirs seat, can rotate around bearing pin, grip slipper is arranged sliding chamber, sliding chamber sidewall is as slideway, scissors drives slide block both sides to arrange chute, scissors drives slide block to be arranged in sliding chamber, slideway is snapped in chute cooperatively interact, form spacing guiding of sliding.Latch needle mechanism 3 comprises crochet hook seat, crochet hook, crochet hook seat is fixed on crochet hook expansion link front end, crochet hook seat is arranged the elongated slot adapting to crochet hook, crochet hook arranges long slot bore, by the screw being threaded onto long slot bore, crochet hook is fixedly installed in elongated slot, crochet hook expansion link drives the rotation of crochet hook seat, realizes crochet hook and has been elevated the action of hook yarn along camber line.Clamping device comprises clamp springs 17, clamping movable leg 20, grip pin 19, clamping elevating lever 18, elastic force regulating block and coping block 5, gripping pin 19 is arranged on grip slipper 13, grip on pin 19 and elevating lever installing hole is set, clamping elevating lever 18 is threaded onto in this elevating lever installing hole, clamping movable leg 20 is fixed on clamping elevating lever 18 lower end, with grip pin 19 and match and form clamp port, clamp springs 17 is set in clamping elevating lever, its lower end is pressed against clamping movable leg upper side, elastic force adjustment block is installed on clamping elevating lever and is pressed against the upper end of clamp springs, chucking power clamping movable leg being provided by spring force and being gripped between pin, can regulating spring elastic force by the installation site of adjustment elastic force adjustment block, thus adjustment chucking power, coping block 5 is fixed on crochet hook seat and is positioned at above clamping elevating lever top, the rotation of crochet hook seat drives briquetting to be pressed against clamping elevating lever, make lifter rod lifting, realize clamp port opening and closing.
Upper scissors expansion link driving mechanism comprises control system, motor 4, eccentric disc 24, slide block and slide 21, motor 4 is installed on casing 1, eccentric disc 24 is installed in the rotating shaft of motor 4, one bearing pin is installed in the eccentric orfice of eccentric disc 24, slide block to be installed on this bearing pin and rotatable, slide 21 arranges axis hole fixed cover and is loaded on scissors expansion link 11, slide the upper side and lower side all arranges pilot hole, be placed in the guide post corresponding with upper scissors expansion link 11 and the guide post 6 corresponding with crochet hook expansion link 12 respectively, realization moves axially guiding, the through hole being used for camshaft and passing through is set in the middle part of slide, top arranges chute 23 to slide 21, slide block is embedded in chute, drives eccentric disc rotation by the rotating of motor, thus band movable slider makes circular arc displacement movement, drive slide axially to produce displacement at upper scissors expansion link, realize driving upper scissors expansion link axial reciprocating to move, motor 4 is controlled to associate with loom main shaft to rotate by control system, control system includes normal braiding Electric Machine Control program and fluffing braiding Electric Machine Control program, described in the programme-control of fluffing braiding Electric Machine Control, motor is 0 ~ 75 degree of rotating, described in the programme-control of described normal braiding Electric Machine Control, motor is 0 ~ 91 degree of rotating, by controlling the incidence relation of machine shaft and loom main shaft angle, make normal woven condition different with the angle relation relation of fluffing woven condition, realize in normal woven condition different with the upper scissors expansion link stroke of fluffing woven condition, when fluffing braiding, upper shear blade and lower scissors sheet do not produce to shear and close, when normally weaving, the grip slipper rotation of shear blade in the drive installation of upper scissors expansion link, make shear blade and lower scissors sheet produce shearing to close, cut off weft yarn loose thread.Casing 1 arranges pin hole, the axially movable technique latch 22 of plug-in mounting in pin hole, eccentric disc outer peripheral face is provided with the technique latch groove 25 corresponding with technique latch, carry out the setting of eccentric disc benchmark position by technique latch insertion process latch groove, the benchmark realizing motor angle and loom main shaft angle relation sets.
The left side device crochet hook of Tucked-in selvage apparatus is identical with the right device with scissors quantity, and difference is that the crochet hook of left side device and the right device is contrary with scissors position.The middle device of Tucked-in selvage apparatus comprises a lower scissors expansion link, two crochet hook expansion links and a upper scissors expansion link, and each root crochet hook expansion link front end is all provided with a latch needle mechanism, can realize the braiding of left and right tuck-in selvage.Be installed in swing arm in the middle of described back shaft, two ends are a hinged connecting rod respectively, and two connecting rods are corresponding hinged with the pin joint on the rotary sleeve outer peripheral face on a crochet hook expansion link separately, realizes driving two crochet hook expansion links to rotate by the 3rd cam mechanism simultaneously; Grip slipper is provided with a upper shear blade, upper shear blade both sides respectively arrange a set of clamping device, scissors base are provided with a lower scissors sheet corresponding with upper shear blade.