CN2749896Y - Flat-knitting machine yarn feeding device special for multi-axial reinforced framework knitting structure - Google Patents

Abstract

The utility model discloses a multi-axial reinforced weft knitting structure special flat knitting yarn feeding device, which comprises front and rear needle beds 1, 1', front and rear needle beds 2, 2', front and rear weft yarn guides 3, 3', front and rear knitting yarn guides 6, 6', front and rear two sets of warp yarn guides 9, 9' and -45°, +45° two sets of oblique yarn guides 11, 11', two sets of oblique yarn guides Yarn guides 11, 11' are arranged inside two groups of warp yarn guides 9, 9'; weft yarn guides 3, 3', knitting yarn guides 6, 6', warp yarn guides 9, 9' and oblique yarn guides 11, 11' are symmetrically arranged front and back, and the order of arrangement from the front needle bed to the rear needle bed is: weft yarn guide 3, knitting yarn guide 6', warp yarn guide 9, - 45° oblique yarn guide 11, +45° oblique yarn guide 11', warp yarn guide 9', knitting yarn guide 6, and weft yarn guide 3'. The symmetry of the reinforced structure and the mechanical performance of the third dimension direction are improved, and the requirements of the change of the direction of force are met.

Description

Yarn feeding device for flat knitting machine with multi-axial reinforced weft knitting structure

technical field

The utility model relates to a textile machine, in particular to a yarn feeding device for a special flat knitting machine with multi-axial reinforced weft knitting structure.

Background technique

The flat knitting machine is a flat weft knitting machine, mainly used for knitting woolen sweaters. In addition to the knitting yarn guide, the yarn feeding device on the flat knitting machine can also be equipped with a yarn feeding device for weaving multi-axial weft knitting structures. into the device. There are mainly two types of yarn feeding devices for existing multi-axial weft knitting structures. The first one uses weft flat stitches as the ground weave, and the device consists of two sets of +-45° oblique yarn guides and one set of warp yarn guides. In addition to being able to move along the direction of the needle bed, the oblique yarn guide can also be placed at its end point before or behind the needle; the end point of the warp yarn guide can also be placed at the front or behind the needle. When weaving, the knitting yarn and the weft yarn are respectively fed into the shed formed by the oblique yarn and the warp yarn from the weft direction, the knitting yarn is fed to the needle hook to weave the plain stitch, and the weft yarn is fed to the back of the needle without knitting. The yarns fed by this yarn feeding device can be interlaced with each other. The second is a rib weave, which includes two sets of warp yarn guides, two sets of oblique yarn guides, two weft yarn guides and a knitting yarn guide. Two sets of warp yarn guides respectively feed two sets of warp yarns into the weaving area from the warp direction; two sets of oblique yarn guides respectively feed two sets of oblique yarns into the weaving area along +45 and -45 directions; two weft yarns The yarn guide feeds the weft yarn from the weft direction to the needle backs of the front and rear knitting needles in the knitting area; the knitting yarn guide is located in the middle of the front and rear needle beds, and the fed knitting yarn weaves the rib weave.

The multi-axially reinforced weft-knitted structures woven by these two yarn feeding devices are all woven by a single knitting yarn. Although they have good plane mechanical properties, their structural symmetry and mechanical properties in the thickness direction of the fabric are poor. , subject to certain restrictions in use.

Contents of the invention

The technical problem to be solved by the utility model is to provide a special flat knitting machine yarn feeding device for multi-axial reinforced weft knitting structure, so as to make up for the above-mentioned deficiencies in the prior art.

In order to solve the above-mentioned technical problems, the technical solution adopted by this new model is: a special flat knitting machine yarn feeding device for multi-axial reinforced weft knitting structure, including front and rear needle beds 1, 1', front and rear needle beds 2 . , 11', two groups of oblique yarn guides 11, 11' are arranged inside two groups of warp yarn guides 9, 9'; described weft yarn guides 3, 3', knitting yarn guides 6, 6', warp yarn guides 9, 9' and oblique yarn guides 11, 11' are symmetrically arranged front and back, and their arrangement sequence from the front needle bed to the rear needle bed is: weft yarn guide 3, knitting yarn guide 6', warp yarn guide 9, -45° oblique yarn guide 11, +45° oblique yarn guide 11', warp yarn guide 9', knitting yarn guide 6, weft yarn guide device 3'.

Described weft yarn guide 3,3' and knitting yarn guide 6,6' move along guide rail 5,5' and 8,8' by their slide blocks 4,4' and 7,7' respectively; Two groups of warp yarn guides 9, 9' are respectively installed on two warp yarn support rods 10, 10', and the warp yarn guides 9, 9' are fixed; two groups of -+45° oblique yarn guides 11 and 11' are installed on the oblique yarn guide sliders 12 and 12', and each slider is only equipped with one yarn guide, and the oblique yarn guides are respectively arranged along the needle bed at -45° and +45° lateral movement, and change its movement direction by circular motion at both edges of the fabric, from -45° to +45° on the left side, and from +45° to -45° on the right side, forming a circular motion.

Two groups of warp yarn guides 9, 9' are arranged horizontally along the needle bed direction, each yarn guide is located between two knitting needles, and the distance between the yarn guides is the same as the needle pitch; two sets of oblique yarn guides 11, 11' are arranged horizontally along the direction of the needle bed, each yarn guide is located between two knitting needles, the distance between the yarn guides is the same as the needle pitch, and all oblique yarn guides are arranged in a closed loop; support rods 10, 10' is symmetrically installed on the frame of the flat knitting machine, and its position can be adjusted; all oblique yarn guide sliders 12, 12' are connected together by pins 13 and chain blocks 14 to form a slider chain 15, and are connected by front and rear gears 16,16' to drive, the stitch distance of each movement of the slider chain 15 can be changed; the pins 13,13' on the sliders 12,12', the guide pins 17,17' and the slider flanges 18,18' respectively Embedded in guide rails 19, 20 and 21 with a waist-circular track to prevent the slider from turning over and ensure smooth movement; the maximum width of the slider 12 and 12' is the same as the needle pitch, and the head end is semicircular fan-shaped, which is convenient for two Circumferential motion of the edge; the front and rear guide rail frames 22, 22 ' and 23, 23 ' are respectively fixed on the guide rail support bars 24, 24 ', and the support bars 24, 24 ' are installed on the frame of the flat knitting machine.

The knitting needles 2 of the front needle bed work simultaneously with the weft yarn guide 3 and the knitting yarn guide 6; the knitting needles 2' of the rear needle bed work simultaneously with the weft yarn guide 3' and the knitting yarn guide 6'; The diagonal yarn guide only moves laterally when the front and rear needles are not working.

Described yarn guide (3), (3 '), (9), (9 '), (11) and (11 ') all adopt thin metal tube to be processed by required shape.

The beneficial effects of the utility model are:

1. The utility model makes the flat knitting machine have the function of weaving multi-axial reinforced weft knitting structure, and uses two knitting yarns to respectively weave two weft flat stitches, which improves the symmetry of the reinforced structure and the mechanics of the third dimension. performance.

2. The needle distance of the oblique yarn guide of the utility model can be changed flexibly each time, and can feed oblique yarns with different inclination angles, so as to meet the requirements of changes in the direction of force.

3. The knitting yarn guide and the weft yarn guide of the utility model move independently and can be flexibly adjusted, so that the flexibility of the flat knitting machine is improved, and multi-axial reinforced weft knitting structures of different structures can be knitted.

Description of drawings

Figure 1 is a schematic diagram of the utility model flat knitting machine yarn feeding device;

Fig. 2 Schematic diagram of the oblique yarn lateral movement device in Fig. 1;

Fig. 3 is a schematic diagram of the yarn feeding device of the utility model flat knitting machine.

Detailed ways

Below in conjunction with specific embodiment the utility model is described in further detail.

With reference to Fig. 1, Fig. 2 and Fig. 3, flat knitting machine yarn feeding device of the present utility model comprises flat knitting machine needle bed 1,1', knitting needle 2,2', two weft yarn guides 3,3' , Two weft yarn guide sliders 4, 4', two weft yarn guide rails 5, 5', two knitting yarn guides 6, 6', two knitting yarn guide sliders 7, 7' , two knitting yarn guide rails 8, 8', two sets of warp yarn guides 9, 9', two warp support rods 10, 10', two sets of cyclically moving oblique yarn guides 11, 11' And their support and transmission system, including oblique yarn guide slider 12, 12', oblique yarn guide slider chain 15, transmission gear 16, 16', rail frame 22, 22' and 23, 23 'And rail support rod 24,24'. Two groups of warp yarn guides 9,9' are respectively fixed on two support rods 10,10', and the support rods 10,10' are installed on the frame of the flat knitting machine. Two groups of oblique yarn guides 11, 11 ' are all installed on the oblique yarn guide sliders 12, 12 ', and each slide block is only equipped with one yarn guide, and all oblique yarn guides slide The blocks are connected together to form a slider chain 15, which is driven by gears 16, 16'. Guide rail frame 22,22' and 23,23' are respectively fixed on the guide rail support bar 24,24', and support bar 24,24' is installed on the frame of flat knitting machine again. Yarn guides 3, 3', 9, 9' and 11, 11' are all made of thin metal tubes according to the required shape. All yarn guides are symmetrically arranged front and back, and they are arranged from the front needle bed to the rear needle bed. The cloth sequence is: weft yarn guide 3, knitting yarn guide 6', warp yarn guide 9, -45° oblique yarn guide 11, +45° oblique yarn guide 11', warp yarn guide Device 9' knitting yarn guide 6, weft yarn guide 3'.

Its operating principle is shown in Figure 3, and two groups of warp yarn guides 9,9' feed two groups of warp yarns 25,25' into the knitting area respectively from the longitudinal direction, and each warp yarn is positioned between two pieces of knitting needles. Two groups of oblique yarn guides 11, 11' feed the two groups of oblique yarns 26, 26' into the knitting area at a certain angle of inclination from the longitudinal direction, and each warp yarn is positioned between two knitting needles. The weft yarn guides 3, 3' move back and forth along the corresponding yarn guide rails 5, 5' through the sliders 4, 4' respectively, and feed the weft yarns 27, 27' to the backs of the knitting needles 2 and 2' of the front and rear needle beds Location. The knitting yarn guides 6, 6' move back and forth along the corresponding yarn guide rails 8, 8' through the sliders 7, 7' respectively, feeding the knitting yarns 28, 28' to the knitting needles 2, 2' of the front and rear needle beds respectively Laying position in front of needle. The knitting needles 2 of the front needle bed work with the weft yarn guide 3 and the knitting yarn guide 6 at the same time, and the knitting needles 2' of the rear needle bed work with the weft yarn guide 3' and the knitting yarn guide 6' at the same time. The yarn guides 11, 11' only move laterally when the front and rear needles are not working. During the weaving process, under the transmission of the gears 16 and 16', the oblique yarn guides 11 and 11' move laterally along the needle bed at -45° and +45° respectively, and change their positions by circular motion at the two edges of the fabric. The direction of movement, the left side is from -45° to +45°, and the right side is from +45° to -45°, forming a circular motion, so that one group of oblique yarns fed into the weaving area is inclined towards -45°, and the other The group is tilted towards +45°. The size of the oblique yarn inclination angle depends on how much the needle distance is moved each time. By changing the working order of the front and rear knitting needles and the size of the needle distance of each movement of the oblique yarn guide, it is possible to knit various multi-axial yarns with different inclination angles, different knitting yarn binding methods and different weft yarn reinforcement methods on the flat knitting machine. Reinforced weft-knit construction.

Claims (6)

1. A special flat knitting machine yarn feeding device for multi-axial reinforced weft knitting structure, including front and rear needle beds (1), (1'), front and rear needle beds (2), (2'), front and rear weft yarns Yarn guides (3), (3'), front and rear knitting yarn guides (6), (6'), two sets of front and rear warp yarn guides (9), (9') and two sets of oblique -+45° The yarn guides (11), (11') are characterized in that: two groups of oblique yarn guides (11), (11') are arranged in two groups of warp yarn guides (9), (9') the inside; the weft yarn guides (3), (3'), knitting yarn guides (6), (6'), warp yarn guides (9), (9') and oblique yarn guides The yarn devices (11), (11') are arranged symmetrically front and back, and their arrangement sequence from the front needle bed to the rear needle bed is: weft yarn guide (3), knitting yarn guide (6'), warp yarn guide Device (9), -45° oblique yarn guide (11), +45° oblique yarn guide (11'), warp yarn guide (9'), knitting yarn guide (6), Weft thread guide (3'). 2. The special-purpose flat knitting machine yarn feeding device according to claim 1, characterized in that: the weft yarn guides (3), (3') and the knitting yarn guides (6), (6' ) move along guide rails (5), (5') and (8), (8') by their slide blocks (4), (4') and (7), (7') respectively; two groups of warp guide yarns Devices (9), (9') are installed on two warp thread support bars (10), (10') respectively, and described warp thread guides (9), (9') are fixed; two groups-+ 45° oblique yarn carrier (11), (11 ') is installed on the oblique yarn carrier slide block (12), (12 '), and each slide block only installs a yarn guide, described The oblique yarn guide moves horizontally along the needle bed at -45° and +45° respectively, and changes its direction of movement by circular motion at the two edges of the fabric, from -45° to +45° on the left and +45° on the right 45° to -45°, forming a circular motion. 3. The special-purpose flat knitting yarn feeding device according to claim 1 or 2, characterized in that: two groups of warp yarn guides (9), (9') are arranged horizontally along the direction of the needle bed, and each yarn guide Located between two knitting needles, the distance between the yarn guides is the same as the needle pitch; two sets of oblique yarn guides (11), (11') are arranged horizontally along the direction of the needle bed, and each yarn guide is located between two knitting needles. Between the needles, the distance between the yarn guides is the same as the needle pitch, and all oblique yarn guides form a closed loop; the support rods (10), (10') are symmetrically installed on the frame of the flat knitting machine, and their positions It can be adjusted; all oblique yarn guide sliders (12), (12') are connected together by pins (13) and chain blocks (14) to form a slider chain (15), and through front and rear gears (16), (16 ') to drive, and the needle pitch that slide block chain (15) moves each time can be changed; Pin (13), (13 ') on slide block (12), (12 '), guide pin (17), (17') and slider flanges (18), (18') are respectively embedded in the guide rails (19), (20) and (21) whose track is a waist circle, so as to prevent the slider from overturning and ensure smooth movement; The maximum width of slide block (12), (12 ') is identical with pitch, and head end is semicircle sector, is convenient to the circular motion at two edges; 23 ') are respectively fixed on the guide rail support bar (24), (24 '), and support bar (24), (24 ') is installed on the frame of flat knitting machine again. 4. The special-purpose flat knitting yarn feeding device according to claim 1 or 2, characterized in that: the knitting needles (2) of the front needle bed, the weft yarn guide (3) and the knitting yarn guide ( 6) Work at the same time; the knitting needles (2') of the rear needle bed work with the weft yarn guide (3') and the knitting yarn guide (6') at the same time; the oblique yarn guide only works when the front and rear knitting needles are not working Only move laterally. 5. The special-purpose flat knitting machine yarn feeding device according to claim 1 or 2, characterized in that said yarn guides (3), (3'), (9), (9'), (11 ) and (11 ') are all processed by thin metal tubes according to the required shape. 6. The special-purpose flat knitting machine yarn feeding device according to claim 3, characterized in that: said yarn guides (3), (3'), (9), (9'), (11) and (11 ') all adopt fine metal tube to form by required shape processing.

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