Guide assembly adapted for inlay knitting on a flat knitting machine

Abstract

The application discloses a yarn guide assembly suitable for conducting weft knitting in a flat knitting machine, which comprises a top rod arranged above the flat knitting machine and parallel to the width direction of the flat knitting machine; a yarn guide mechanism hung below the top rod through a connecting arm, wherein the yarn guide mechanism comprises a combined yarn nozzle, and the end of the combined yarn nozzle is composed of a plurality of nozzle heads in parallel; a transverse driving mechanism for driving the yarn guide mechanism to move along the top rod, a longitudinal driving mechanism for driving the combined yarn nozzle to move up and down relative to the top rod, and a swing driving mechanism for driving the yarn guide mechanism to swing back and forth. The yarn guide mechanism and the combined yarn nozzle swing back and forth through the swing of the top rod, and a dimension of movement is added on the basis of the two-dimensional movement of the original yarn guide mechanism. The nozzle head has the actions of swinging back and forth, moving up and down and moving left and right, and the actions are coordinated with each other to truly realize the winding of the yarn, so that the yarn is knitted into the knitted fabric as the weft.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of knitting machines, in particular to a component of a flat knitting machine, and more particularly to a yarn guide assembly suitable for inlay knitting. BACKGROUND

[0002] Today, the requirements for knitted fabrics produced on knitting machines are increasingly high, and increasingly complex and intricate patterns need to be knitted, as well as special properties in terms of strength of the entire knitted fabric or of regions thereof. Inlay knitting makes it possible to thread yarns between the needles, to wrap the yarns, and to knit the yarns into the knitted fabric as warp threads, and is a very promising knitting method.

[0003] CN114657687 discloses a knitting machine, the yarn guide of which is capable of moving along a guide rail, the yarn guide having a yarn guide arm, a yarn guide mechanism being provided at the lower end of the yarn guide arm, the yarn guide mechanism having one or more feed members for feeding yarns to the needles of the flat knitting machine or knitting machine; the yarn guide mechanism has eyelets, perforating needles or small tubes of a single type or in any combination as feed members; it is also disclosed that the yarn guide mechanism has a lower position close to the comb gap and an upper position away from the comb gap. Each feed member of such a yarn guide can precisely feed one or more yarns to the needles. Therefore, the yarn guide can feed a large number of yarns separately to different needles; at the same time, the yarn guide mechanism has two movement directions, i.e. transverse movement along the rail and upward and downward movement perpendicular to the rail, so it can to some extent complete relatively complex knitting actions. However, due to the lack of a third dimension of movement, i.e. forward and backward swinging movement relative to the rail, it cannot actually complete complete inlay knitting. SUMMARY

[0004] The purpose of the present application is to overcome the above-mentioned defects and to provide a yarn guide assembly suitable for inlay knitting in a flat knitting machine.

[0005] The technical solution adopted by the present application is as follows: a yarn guide assembly suitable for inlay knitting in a flat knitting machine, comprising a top rod arranged above the flat knitting machine and parallel to the width direction of the flat knitting machine; a yarn guide mechanism suspended below the top rod by a connecting arm, the yarn guide mechanism comprising a combined nozzle, the end of the combined nozzle being composed of a plurality of nozzle heads arranged side by side; a transverse drive mechanism for driving the yarn guide mechanism to move transversely along the top rod, and a longitudinal drive mechanism for driving the combined nozzle to move up and down relative to the top rod; characterized in that it further comprises a swinging drive mechanism for driving the yarn guide mechanism to swing forward and backward.

[0006] Further, the swing driving mechanism comprises a top rod mounting seat, a rotating shaft parallel to the top rod is arranged on the top rod mounting seat, one end of the rotating shaft is fixedly connected with the swing block; the top rod is arranged above the rotating shaft and is connected with the upper part of the swing block; the top of the swing block is a rack, the output shaft of the swing motor is engaged with the rack on the top of the swing block through a gear, so that the swing block is driven to swing, and the top rod is further driven to swing.

[0007] The transverse driving mechanism comprises a synchronous belt arranged above the top rod; the yarn guide mechanism is fixed on the synchronous belt, and the transverse motor drives the synchronous belt to move, so as to drive the yarn guide mechanism to move transversely.

[0008] The longitudinal driving mechanism comprises a connecting arm connected with the top rod, a longitudinal sliding groove is arranged on the connecting arm, a connecting rack is arranged in the sliding groove and can slide up and down in the sliding groove; the upper end of the connecting rack is indirectly engaged with the longitudinal motor, and the lower end is fixedly connected with the yarn guide mechanism.

[0009] The present application realizes the front and back swing of the yarn guide mechanism and the combined yarn nozzle through the swing of the top rod, and further increases the movement of one dimension on the basis of the two-dimensional movement of the original yarn guide mechanism. The yarn nozzle head has the actions of front and back swing, lifting and left and right movement, and the actions can truly realize the winding of the yarn, so that the yarn is knitted into the knitted fabric as the warp, and the warp is inserted into the weft knitted fabric in cooperation with the knitting system, a plurality of insertion forms are realized, for example, loop formation or non-loop formation. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a structural schematic diagram of the present application.

[0011] Figure 2 is Figure 1 an exploded schematic diagram.

[0012] Figures 3 to 5 is an exploded schematic diagram of the yarn guide mechanism at different angles.

[0013] Figure 6 is a schematic diagram of the transverse driving mechanism.

[0014] Figure 7 is a schematic diagram of the longitudinal driving mechanism.

[0015] The reference signs are as follows: 1 - overhead rod; 2 - overhead rod mounting seat; 3 - connecting arm; 31 - front baffle; 32 - rear baffle; 33 - sliding groove; 34 - connecting rack; 4 - yarn guide mechanism; 41 - combined nozzle; 411 - nozzle head; 5 - rotating shaft; 6 - swing block; 61 - swing block pivot hole; 62 - swing block rack; 63 - swing block mounting hole; 7 - swing motor; 71 - swing motor gear; 8 - transverse drive motor; 81 - pulley; 82 - synchronous belt; 9 - longitudinal drive motor; 91 - bevel gear; 92 - sector rack. DETAILED DESCRIPTION

[0016] Referring to Figure 1 , Figure 2 . The overhead rod 1 is mounted on the overhead rod mounting seat 2, and several overhead rods are shown in the figure, only the overhead rod 1 is the embodiment of the present application, and the others are conventional overhead rods. The overhead rod mounting seat 2 is provided with a rotating shaft 5 parallel to the overhead rod; the lower end of the swing block 6 has a pivot hole 61 matched with one end of the rotating shaft 5, and the upper part of the swing block has a mounting hole 63, through which the overhead rod 1 is fixedly connected with the swing block 6; the top of the swing block has a rack 62, and the swing motor 7 is engaged with the rack 62 through the gear 71. When the motor 7 works, the swing block is pushed to swing back and forth with the rotating shaft 5 as the center, and correspondingly, the overhead rod 1 also swings. The yarn guide mechanism 4 is mounted on the overhead rod through the connecting arm 3, and also produces a swinging action.

[0017] Referring to Figure 3 , Figure 6 . The transverse drive is completed by the motor 8 and the synchronous belt 9. The connecting arm has a front baffle 31 and a rear baffle 32 clamped and fixed on the synchronous belt 9, and the motor 8 drives the synchronous belt to move through the pulley 81, that is, to make the connecting arm drive the yarn guide mechanism 4 to produce transverse movement along the overhead rod.

[0018] Referring to Figure 4 , Figure 5 , Figure 7 . The longitudinal drive mechanism includes the motor 9, which drives the sector rack 92 to rotate through the bevel gear 91. The connecting arm has a sliding groove 33, and the connecting rack 34 is placed in the sliding groove 33 and can slide up and down under the drive of the sector rack 92; the lower end of the connecting rack 34 is connected with the combined nozzle 41, so that when it slides up and down, the combined nozzle 41 and each nozzle head 411 perform lifting movement.

[0019] Through the combination of the movements in the above three dimensions, the embodiment can realize the complex actions of the nozzles and the yarns.

Claims

1. A yarn guiding assembly suitable for warp knitting on a flat knitting machine, comprising a top rod disposed above the flat knitting machine and parallel to the width direction of the knitting machine; a yarn guiding mechanism suspended below the top rod by a connecting arm, the yarn guiding mechanism comprising a combined yarn nozzle, the end of which is composed of a plurality of yarn nozzle heads arranged side by side; further comprising a transverse drive mechanism for driving the yarn guiding mechanism to move laterally along the top rod, and a longitudinal drive mechanism for driving the combined yarn nozzle to move vertically relative to the top rod; characterized in that: It also includes a swing drive mechanism that drives the yarn guide mechanism to swing back and forth; The swing drive mechanism includes a top rod mounting base, on which a rotating shaft parallel to the top rod is provided. One end of the rotating shaft is fixedly connected to the swing block. The top rod is located above the rotating shaft and connected to the upper part of the swing block. The top of the swing block is a rack. The output shaft of the swing motor meshes with the rack on the top of the swing block through a gear, thereby driving the swing block to swing and thus driving the top rod to swing. The lateral drive mechanism includes a timing belt, which is set above the top rod; the yarn guide mechanism is fixed on the timing belt, and the lateral motor drives the timing belt to move, thereby driving the yarn guide mechanism to move laterally; The longitudinal drive mechanism includes a connecting arm connected to the top rod, the connecting arm having a longitudinal sliding groove, and a connecting rack inside the sliding groove, which can slide up and down within the sliding groove; the upper end of the connecting rack is indirectly engaged with the longitudinal motor, and the lower end is fixedly connected to the yarn guiding mechanism.

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