WO2018041127A1

WO2018041127A1 - Moving-reed weft cutting mechanism of air jet loom

Info

Publication number: WO2018041127A1
Application number: PCT/CN2017/099606
Authority: WO
Inventors: 王勇
Original assignee: 江苏友诚数控科技有限公司
Priority date: 2016-08-30
Filing date: 2017-08-30
Publication date: 2018-03-08
Also published as: CN106245208B; CN106245208A

Abstract

A moving-reed piling weft cutting mechanism for an air jet loom (1). A sliding cam (7) is connected to a piling control shaft (2) passing therethrough. A sliding swing rod (9) is pin-connected to a loom frame (4). A sliding return mechanism is provided between the sliding swing rod (9) and the loom frame (4). The sliding swing rod (9) has one end thereof pin connected to and abutted against a sliding rotor (8) on the sliding cam (7), and the other end thereof pin connected to one end of a sliding linking rod (10). The other end of the sliding linking rod (10) is connected to a sliding plate (13) on a sliding seat (12). A static cutting arm (20) is provided at the end of the sliding plate (13) close to a steel reed (5). A moving cutting arm (19) is connected to a moving arm linking rod (17), and is driven by the moving arm linking rod (17) to rotate so as to correspondingly open and close relative to the static cutting arm (20). A cutting cam (14) passes through and is connected to a loom main shaft (3). A middle part of a cutting swing rod (16) is rotatably pin-connected on the loom frame (4). A cutting return mechanism is provided between a non-middle pin connection point of the cutting swing rod (16) and the loom frame (4). The cutting swing rod (16) has one end thereof movably pin-connected to and abutted against a cutting rotor (15) on the cutting cam (14), and the other end thereof movably pin-connected to one end of a cutting linking rod. The other end of the cutting linking rod is connected to the moving arm linking rod (17).

Description

Air jet loom

Technical field

The invention relates to an air jet loom, in particular to an air jet loom swaying weft shearing mechanism.

Background technique

The conventional air jet loom has a fixed swing amplitude and a high weaving height, which cannot meet the requirements of adjustable hair height. The prior art, as disclosed in the Chinese Patent Application No. CN201420200844.6, discloses a swaying air-jet towel looming machine which adopts a first and a second swinging rod with fixed angles to drive the squatting foot, and the fixed crank angle is changed by the cranking crankshaft. The rotation points of the first and second swinging rods are used to drive and control the squatting feet to realize different angles of rotation and beating of the squatting feet. Although the height adjustment can be satisfied, when the steel shovel is swung to different amplitudes, the nozzles on the steel shovel are fed. After the short cutting position is different, the fixed position of the scissors can not meet the requirements of the weft cutting when different heights of the steel sway are achieved in different positions of the steel sway.

Summary of the invention

In view of the above-mentioned deficiencies in the prior art, the present invention provides an air-jet loom swaying and weft-cutting mechanism which is simple in structure and compact, and can adjust the position of the shearing yam with the oscillating amplitude of the screed.

The technical solution adopted by the present invention is: a swaying and blowing air jet loom weft shearing mechanism, comprising: a scissor seat sliding mechanism and a shearing blade opening and closing mechanism, the scissor seat sliding mechanism comprising a sliding cam, a sliding rotor, a sliding swing lever, a sliding linkage, a slip recovery mechanism, a sliding seat, a sliding plate, and the cutting blade opening and closing mechanism comprises a scissors static arm, a scissors moving arm, a boom linkage, and a shearing swing rod a shearing rotor, a shearing cam, and a boom returning mechanism, the sliding cam being threaded on a shaft of the raising control shaft or the raising adjustment shaft driven by the raising servo motor, and rotating the pin in the middle of the sliding swinging rod On the loom frame, a slip recovery mechanism is arranged between the non-middle pin contact point of the sliding pendulum and the loom frame, and the sliding pin at one end of the sliding pendulum is coupled to the sliding rotor on the sliding cam, and slides The other end of the shifting rod is connected to one end of the sliding link set in the front and rear direction of the loom. The other end of the sliding link is connected to the sliding plate and the sliding plate is slidable on the sliding seat along the front and rear directions of the loom. The sliding seat is fixed on the loom machine. On the shelf, the skateboard is near the end of the steel stern through the vertical plate on the vertical plate. The scissor arm is fixedly fixed, and the scissor arm is movablely mounted on the vertical plate, and the scissor boom is connected with the boom link to drive the rotation of the corresponding arm to open and close the scissor arm, and the shear cam is connected. On the spindle of the loom or the shaft synchronized with it, the middle rotation pin of the shearing pendulum is connected to the loom frame, and the shearing mechanism is provided between the non-middle pin contact point of the shear pendulum and the loom frame. The movable pin at one end of the oscillating rod is abutted against the shearing rotor on the shearing cam. The other end of the shearing yoke is connected to one end of the shearing link, and the other end of the shearing link is connected to the boom link.

The slip recovery mechanism and the shear recovery mechanism are tension springs or compression springs or reeds.

The sliding cam may be a conjugate cam, and the slip recovery mechanism is omitted; the sliding movement of the sliding plate may also be driven by a dedicated servo motor to drive the eccentric cam and then slide the link to drive the sliding plate on one end of the eccentric cam.

Depending on the structure of the loom, a multi-stage linkage or a multi-stage lever or a combination of multi-stage linkages and levers can also be used between the slip swing lever and the slide.

In use, the angle of rotation of the control shaft or the raising adjustment shaft driven by the raising servo motor can realize the weaving requirements of different amplitude steel swaying to meet different hair heights. When the raising control shaft or the raising adjustment shaft rotates, the sliding rotor is pushed against the sliding rotor, and the sliding rotor drives the sliding swinging rod to swing, and the sliding swinging rod rotates around the pin joint to make the upper pinning slip The linkage drives the sliding plate to feed along the front and rear direction of the loom on the sliding seat. The sliding plate and the vertical plate slide forward and backward to drive the scissors boom and the scissors static arm to slide back and forth, corresponding to the raising control of the lifting servo motor to drive the rotating shaft to drive the steel file. Rotating the position reached by different amplitudes, after the weft is sent to the nozzle on the steel shovel, the main shaft of the loom or the on-axis shearing cam synchronized with the main shaft is used to push the shearing rotor against the shearing rotor, and the shearing rotor drives the shearing pendulum. When the rod swings, the shearing swing rod rotates around its pin contact point, and the other end pin is connected to the boom link to drive the scissors boom to rotate corresponding to the scissors static arm closing to realize the weft yarn cutting, and each time the sliding plate movement and the weft yarn cutting are completed, the steel ball is reset. When the sliding swing lever and the shear swing lever are driven back by the return mechanism provided thereon, after the steel hammer is reset, the slide reset and the scissors boom are opened to the initial position, so as to ensure that the subsequent steel pedal swings at different amplitudes. band Scissors dynamic and static shear arm is moved and a closed position accuracy of the weft scissors boom can adjust the reed swings high shear to adjust the position of the weft yarn woven with wool, to ensure a high hair of each different weft can normally cut weft yarns.

The invention adopts a link group which can drive the slide plate to drive the scissors on the raising control shaft and the main shaft, and the static arm moves back to the different heights to adjust the position of the steel ball to be used for the beating position of the steel bar and the driveable steel ball to beat the weft to After the different amplitude positions, the scissors boom corresponds to the linkage group of the scissors static arm closed shearing, which realizes the precise shearing operation of different height and height weaving and steel boring beating to different amplitude positions in the turbulent air jet loom.

BRIEF abstract

Specific features and properties of the present invention are further exemplified by the following examples and the accompanying drawings.

Figure 1 is a schematic view showing the structure of a woven weft cutting mechanism of an air jet loom according to the present invention;

Figure 2 is a view taken along line A in Figure 1;

Figure 3 is a B-direction view of Figure 1.

In the figure: loom 1, raising adjustment shaft 2, loom main shaft 3, frame 4, reed 5, nozzle 6, sliding cam 7, sliding rotor 8, sliding pendulum 9, sliding linkage 10, Slip return spring 11, slide 12, slide 13, shear cam 14, shear rotor 15, shear swing 16, boom linkage 17, shear return spring 18, scissors boom 19, scissors static arm 20 .

BEST MODE FOR CARRYING OUT THE INVENTION

The following is further described in conjunction with the accompanying drawings and embodiments.

Figure 1-3 shows an air jet weaving weft shear mechanism including a slip cam 7, a slip rotor 8, a slip swing lever 9, a slip link 10, a slip return spring 11, a slide 12, The slider 13, the cutting cam 14, the shearing rotor 15, the shearing pendulum 16, the boom link 17, the shear return spring 18, the scissors boom 19, and the scissors static arm 20. The sliding cam 7 is connected to the shaft of the raising control shaft or the raising adjustment shaft 2 or synchronized thereto, and the central rotating pin of the sliding swinging rod 9 is connected to the frame 1 of the loom 1, and the sliding pendulum 9 is not the middle pin contact point. A sliding return spring 11 is connected between the looms 1 frame 4, and the lower movable pin of the sliding pendulum rod 9 is abutted against the sliding rotor 8 on the sliding cam 7, and the upper movable pin of the sliding pendulum rod 9 is attached to the loom before and after the loom One end of the sliding link 10 is disposed in the direction, the other end of the sliding link 10 is connected to the sliding plate 13 and the sliding plate 13 is slidably adjusted on the sliding seat 12 in the front-rear direction of the loom 1, and the sliding seat 12 is fixed on the frame 4, and the sliding plate 13 is A scissor arm 20 is fixedly disposed on the vertical plate on the sliding plate 13 near the end of the steel cymbal 5, and the scissor arm 19 is movably mounted on the vertical plate, and the scissor arm 19 is connected to the boom link 17 as a follower arm link. 17 driving rotation corresponding to the opening and closing state of the scissors static arm 20, the shearing cam 14 is threaded on the shaft of the loom 3 or synchronized with it, and the middle rotating pin of the shearing pendulum 16 is connected to the frame 1 of the loom 1, cutting A shear return spring 18 is connected between the non-central pin contact point of the swing lever 16 and the loom 1 frame 4, and the lower movable pin of the shear swing lever 16 is abutted against the shear cam 14 The

rotor

15, 16 the upper moving pendulum shear pin shearing link 17 connected at one end, the other end of the cutting links 17 connected to the link arm 19.

In use, the control shaft or the raising adjustment shaft 2 driven by the raising servo motor (not shown in the drawing) is rotated at a set angle to realize the knitting requirements of different amplitudes of the steel shovel 5 to meet different hair heights. When the raising control shaft or the raising adjustment shaft 2 rotates, the sliding rotor 8 is pushed against it, and the sliding rotor 8 drives the sliding swinging rod 9 to swing, and the sliding swinging rod 9 rotates around its pin joint to make the upper portion thereof The pinned sliding link 10 drives the sliding plate 13 to feed on the sliding seat 12 in the front-rear direction of the loom. The sliding plate 13 and the vertical plate disposed on the sliding plate 13 slide forward and backward to drive the scissors moving arm 19 and the scissors static arm 20 to slide back and forth. Shifting, corresponding to the raising of the servo motor driven raising control to rotate the axis (not shown) drives the reed 5 to rotate at different amplitudes. After the nozzle feeds the weft on the reed 5, the loom spindle 3 or the on-axis shear cam 14 synchronized with the main shaft 3 is pushed against the beating. On the shearing rotor 15 thereon, the shearing rotor 15 drives the shearing swing lever 16 to swing, and the shearing swinging lever 16 rotates around its pin contact point so that the other end of the movable arm link 17 drives the scissors boom 19 to rotate. The scissors static arm 20 is closed to realize the weft yarn cutting, and each time the slide 13 moves and the weft yarn cut is completed, and the steel reel is reset, the slip swing rod 9 and the shear swing rod 16 are driven back by the return mechanism provided thereon to ensure the steel. After the 筘5 reset, the slide 13 is reset and the scissors boom 19 is opened to the initial position, ensuring that the slide 13 drives the scissors, the

stationary arms

19, 20, and the closed shear position of the scissors boom 19 when the subsequent cymbal 5 swings at different amplitudes. Accuracy, the position of the shearing yarn can be adjusted according to the swinging height of the steel sling, and the weft yarn can be cut normally for each latitude of different hair heights.

The slip return spring 11 and the shear return spring 18 may be other types of slip recovery mechanisms and shear recovery mechanisms. For example, the slip recovery mechanism and the shear recovery mechanism may also be tension springs or compression springs or reeds.

The slip cam 7 can be a conjugate cam, eliminating the slip recovery mechanism.

The slide plate 13 can also be moved back and forth by a dedicated servo motor to drive the eccentric cam and then slide the link to drive the slide on one end of the eccentric cam.

Depending on the structure of the loom, a multi-stage linkage or a multi-stage lever or a combination of multi-stage linkages and levers may be used between the slip swing lever 9 and the slide plate 13.

Claims

A fluttering air jet loom weft shearing mechanism characterized by

a scissor seat slip mechanism including a slip cam, a slip rotor, a slip swing lever, a slip link, a slip recovery mechanism, a slide, and a skateboard;

Shear blade opening and closing mechanism, including scissors static arm, scissors boom, boom linkage, shear swing lever, shear rotor, shear cam, shear recovery mechanism;

In the scissor seat sliding mechanism, the sliding cam is threaded on a shaft of the raising control shaft or the raising adjustment shaft driven by the raising servo motor, and the middle rotating pin of the sliding swing rod is connected to the loom machine On the frame, a slip recovery mechanism is arranged between the non-middle pin contact point of the sliding pendulum and the loom frame, and the sliding pin at one end of the sliding pendulum is connected to the sliding rotor on the sliding cam, and the sliding pendulum is further One end of the movable pin is connected to one end of the sliding link set in the front and rear direction of the loom, the other end of the sliding link is connected to the sliding plate and the sliding plate is slidable on the sliding seat along the front and rear directions of the loom, and the sliding seat is fixed on the loom frame, the sliding board A pair of scissors static arms are fixed on the vertical plate near the end of the steel sill, and the movable arm is connected to the movable arm on the vertical plate, and the movable arm connecting the movable arm link is driven by the moving arm link to rotate the corresponding scissors static arm. Open and close state

The shearing cam is connected to the main shaft of the loom or the shaft synchronous with the loom, and the rotating pin of the middle of the shearing swing rod is connected to the loom frame, and the non-middle pin joint of the shearing pendulum is disposed between the loom frame and the loom frame. The shearing recovery mechanism, the shearing rod has a movable pin at one end of the shearing rod and a shearing rotor against the shearing cam. The other end of the shearing swinging rod is connected to one end of the shearing link, and the other end of the shearing link is connected with the movable arm. Rod.
The air jet weaving weft shearing mechanism according to claim 1, wherein the slip recovery mechanism and the shear return mechanism are tension springs or compression springs or reeds.
The air jet weaving weft shearing mechanism according to claim 1, wherein the sliding cam is replaced by a conjugate cam, and the slip recovery mechanism is omitted.
The air-jet loom swinging weft-cutting mechanism according to claim 1, wherein the movement of the slider back and forth is replaced by a special servo motor driving the eccentric cam and then one end hinged to the eccentric cam. The slip link drives the slide.
The air-jet loom slanting weft-cutting mechanism according to claim 1, wherein: according to the structure of the loom, the multi-stage lever or the multi-stage lever or multi-cascade is used between the slip swing lever and the slide plate. Combination of rod and lever Come connect.