Yarn feeding mechanism for circular weft knitting machine

Abstract

The utility model discloses a yarn feeding mechanism for a circular weft knitting machine, which comprises a supporting leg, a top pipe is fixedly connected to the top end of the supporting leg, a yarn loop vertical rod is fixedly connected to the bottom wall of the top pipe, grooves are symmetrically formed in the side wall of the yarn loop vertical rod, a threaded rod is fixedly connected to the side wall of each groove, and the threaded rod is fixedly connected to the top end of the supporting leg. The side wall of each threaded rod is in threaded connection with a plurality of threaded blocks, the top wall of each threaded block is in sliding connection with a yarn ring fixing seat, the side wall of each yarn ring fixing seat abuts against the side wall of the corresponding groove in a sliding mode, and the bottom wall of each yarn ring fixing seat is rotationally connected with a rotating rod. The side wall of each rotating rod is fixedly connected with a gear, and the top wall of each yarn ring fixing seat is fixedly connected with a yarn ring through a connecting rod. By arranging the gear, the threaded rod and the threaded block, the height of each yarn ring can be adjusted according to the actual yarn feeding requirement, and by arranging the rotating ring, the clamping groove, the clamping hole and the spring, the yarn feeding rotary drum can be rapidly disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of weft knitting machines, in particular to a yarn feeding mechanism for a circular weft knitting machine. Background Art

[0002] A weft knitting machine refers to a machine that feeds yarn along the weft direction to knit knitted fabrics. From the shape of the needle bed, it can be divided into circular weft knitting machines and flat weft knitting machines. Among them, the circular weft knitting machine has developed rapidly because of its characteristics of multiple loop forming systems, high output, fast pattern changes, good fabric quality and fewer processes.

[0003] However, the existing circular weft knitting machines still have some shortcomings, such as: the position of the yarn loop is usually fixed, and the height of each yarn loop cannot be adjusted according to the actual yarn feeding needs; the yarn feeding disc is fixedly connected to the yarn feeding shaft, and it is inconvenient to disassemble and replace the yarn feeding disc after the yarn feeding is completed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a yarn feeding mechanism for a circular weft knitting machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A yarn feeding mechanism for a circular weft knitting machine comprises a supporting foot, the top of the supporting foot is fixedly connected to a top tube, the bottom wall of the top tube is fixedly connected to a yarn coil vertical rod, the side walls of the yarn coil vertical rod are symmetrically provided with grooves, each of the side walls of the groove is fixedly connected to a threaded rod, each of the side walls of the threaded rod is threadedly connected to a plurality of threaded blocks, the top wall of each threaded block is slidably connected to a yarn coil fixing seat, the side walls of each yarn coil fixing seat slide against the side walls of the corresponding groove, the bottom wall of each yarn coil fixing seat is rotatably connected to a rotating rod, the rotating rod is a T-shaped structure, each of the side walls of the rotating rod is fixedly connected to a gear, and the top wall of each yarn coil fixing seat is fixedly connected to a yarn coil via a connecting rod.

[0007] Preferably, the side walls of the supporting feet are fixedly connected with a yarn feeding box seat, the top wall of the yarn feeding box seat is fixedly connected with a yarn feeding shaft, and the side walls of the yarn feeding shaft are installed with a plurality of yarn feeding drums.

[0008] Preferably, the side wall of the yarn feeding shaft is provided with a plurality of annular grooves, a rotating ring is installed inside each of the annular grooves, and the side wall of each rotating ring is symmetrically provided with clamping grooves.

[0009] Preferably, each of the inner side walls of the yarn feeding drum is symmetrically provided with limiting grooves, each of the limiting grooves is slidably connected to a clamping block, each of the side walls of the clamping block is fixedly connected to a plurality of springs, and the other end of each spring is fixedly connected to the corresponding side wall of the clamping groove.

[0010] Preferably, each of the side walls of the clamping block is fixedly connected to a pull rod, and the two pull rods located on the same side wall of the clamping block penetrate through the side wall of the yarn feeding drum and are fixedly connected to a cross bar.

[0011] Preferably, the threaded block is a cylindrical structure, each threaded block side wall is provided with gear teeth, each gear is meshed and connected with the gear teeth of an adjacent threaded block, and each yarn coil fixing seat top wall is provided with a through hole.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting the rotating rod, gear, threaded rod and threaded block components, the threaded connection between the threaded block and the threaded rod can quickly install the yarn loop, and the rotating rod 18 drives the gear to rotate. Under the meshing action of the gear and the side wall gear teeth of the threaded block, the height of each yarn loop can be adjusted according to the actual yarn feeding needs;

[0014] 2. By arranging the rotating ring, the clamping groove, the clamping hole and the spring component, the yarn feeding drum can be quickly installed through the clamping groove and the clamping hole. When disassembling, the yarn feeding drum can be removed by simply pulling the pull rod to make the clamping block slide out of the clamping groove, which is convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural schematic diagram of a yarn feeding mechanism for a circular weft knitting machine.

[0016] Figure 2 The utility model is a top structural sectional view of a yarn feeding drum part in a yarn feeding mechanism for a circular weft knitting machine.

[0017] Figure 3 The utility model is a schematic structural diagram of a yarn feeding shaft part in a yarn feeding mechanism for a circular weft knitting machine.

[0018] Figure 4 The utility model is a schematic structural diagram of a yarn loop fixing seat part in a yarn feeding mechanism for a circular weft knitting machine.

[0019] In the figure: 1 supporting foot, 2 yarn feeding box seat, 3 yarn feeding shaft, 4 yarn feeding drum, 5 annular groove, 6 rotating ring, 7 clamping groove, 8 top tube, 9 yarn coil vertical rod, 10 groove, 11 threaded rod, 12 threaded block, 13 clamping block, 14 limiting groove, 15 spring, 16 yarn coil fixing seat, 17 gear, 18 rotating rod, 19 yarn coil, 20 pull rod, 21 through hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4 A yarn feeding mechanism for a circular weft knitting machine comprises a supporting foot 1, a top tube 8 is fixedly connected to the top of the supporting foot 1, a yarn coil vertical rod 9 is fixedly connected to the bottom wall of the top tube 8, grooves 10 are symmetrically opened on the side walls of the yarn coil vertical rod 9, each groove 10 side wall is fixedly connected to a threaded rod 11, each threaded rod 11 side wall is threadedly connected to a plurality of threaded blocks 12, each threaded block 12 top wall is slidably connected to a yarn coil fixing seat 16, the side wall of each yarn coil fixing seat 16 slides against the side wall of the corresponding groove 10, each yarn coil fixing seat 16 bottom wall is rotatably connected to a rotating rod 18, the rotating rod 18 is a T-shaped structure, each rotating rod 18 side wall is fixedly connected to a gear 17, and each yarn coil fixing seat 16 top wall is fixedly connected to a yarn coil 19 through a connecting rod.

[0022] The side wall of the supporting foot 1 is fixedly connected with a yarn feeding box seat 2, the top wall of the yarn feeding box seat 2 is fixedly connected with a yarn feeding shaft 3, and the side wall of the yarn feeding shaft 3 is installed with multiple yarn feeding drums 4. The yarn feeding shaft 3 can be connected with multiple yarn feeding drums 4 according to production needs.

[0023] The side wall of the yarn feeding shaft 3 is provided with a plurality of annular grooves 5, a rotating ring 6 is installed inside each annular groove 5, and each rotating ring 6 has a symmetrically provided clamping groove 7 on its side wall. The rotating ring 6 can drive the yarn feeding drum 4 to rotate, thereby achieving the yarn feeding effect.

[0024] The inner side wall of each yarn feeding drum 4 is symmetrically provided with a limiting groove 14, and a clamping block 13 is slidably connected inside each limiting groove 14. The side wall of each clamping block 13 is fixedly connected with multiple springs 15, and the other end of each spring 15 is fixedly connected to the side wall of the corresponding clamping groove 7. The yarn feeding drum 4 can be quickly installed by clamping the clamping groove 7 with the clamping block 13.

[0025] Each side wall of the clamping block 13 is fixedly connected to a pull rod 20. The two pull rods 20 located on the side wall of the same clamping block 13 penetrate the side wall of the yarn feeding drum 4 and are fixedly connected to a cross bar. The clamping block 13 is pulled out of the clamping groove 7 by the pull rod 20, so that the yarn feeding drum 4 can be easily disassembled and replaced.

[0026] The thread block 12 is a cylindrical structure, and each thread block 12 has gear teeth on its side wall. Each gear 17 is meshed with the gear teeth of an adjacent thread block 12. The thread block 12 can be driven to rotate by rotating the gear 17, thereby more conveniently achieving the effect of adjusting the height by moving up and down. A through hole 21 is provided on the top wall of each yarn ring fixing seat 16.

[0027] In the present invention, firstly, the threaded rod 11 is passed through the through hole 21 of the yarn coil fixing seat 16 and then threadedly connected with the threaded block 12, so that the yarn coil 19 can be conveniently installed on the yarn coil vertical rod 9, and a suitable number of yarn coils 19 can be installed according to the actual yarn feeding needs. Then the yarn feeding drum 4 is inserted into the yarn feeding shaft 3, so that the clamping block 13 on the inner side wall of the yarn feeding drum 4 slides against the side wall of the yarn feeding shaft 3, and at this time, the spring 15 is compressed by the clamping block 13 sliding a distance into the limiting groove 14. When the yarn feeding drum 4 slides to the top of the rotating ring 6, the yarn feeding drum 4 is rotated to align the clamping block 13 with the clamping groove 7. When the yarn feeding drum 4 slides down to the rotating ring 6 position, the spring 15 releases the elastic force to bounce the clamping block 13 into the clamping groove 7, so that the yarn feeding drum 4 is conveniently clamped on the yarn feeding shaft 3. When the height of the yarn ring 19 needs to be adjusted, the gear 17 is driven to rotate by rotating the rotating rod 18, and the threaded block 12 is driven to rotate by the meshing of the gear 17 and the side wall gear teeth of the threaded block 12. Since the threaded block 12 is rotatably connected with the yarn ring fixing seat 16, the yarn ring 19 can be driven to move up and down by the up and down movement of the threaded block 12. Since the yarn ring fixing seat 16 slides against the side wall of the groove 10, it will not rotate, so that the effect of adjusting the height of the yarn ring 19 can be achieved. When the yarn feeding drum 4 needs to be disassembled and replaced after the yarn feeding drum 4 is completed, the clamping block 13 is driven to slide into the limiting groove 14 by pulling the pull rod 20, so that the clamping block 13 slides out of the clamping groove 7, and the limit of the yarn feeding drum 4 is released. At this time, it is slid out of the yarn feeding shaft 3, and the disassembly operation is relatively convenient.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A yarn feeding mechanism for a circular weft knitting machine, comprising a support foot (1), characterized in that: The top of the support foot (1) is fixedly connected to a top tube (8), the bottom wall of the top tube (8) is fixedly connected to a yarn coil vertical rod (9), the side wall of the yarn coil vertical rod (9) is symmetrically provided with grooves (10), each side wall of the groove (10) is fixedly connected to a threaded rod (11), the side wall of each threaded rod (11) is threadedly connected to a plurality of threaded blocks (12), the top wall of each threaded block (12) is slidably connected to a yarn coil fixing seat (16), the side wall of each yarn coil fixing seat (16) slides against the side wall of the corresponding groove (10), the bottom wall of each yarn coil fixing seat (16) is rotatably connected to a rotating rod (18), the rotating rod (18) is a T-shaped structure, the side wall of each rotating rod (18) is fixedly connected to a gear (17), and the top wall of each yarn coil fixing seat (16) is fixedly connected to a yarn coil (19) via a connecting rod.

2. A yarn feeding mechanism for a circular weft knitting machine according to claim 1, characterized in that: The side wall of the support foot (1) is fixedly connected to a yarn feeding box seat (2), the top wall of the yarn feeding box seat (2) is fixedly connected to a yarn feeding shaft (3), and the side wall of the yarn feeding shaft (3) is installed with a plurality of yarn feeding drums (4).

3. A yarn feeding mechanism for a circular weft knitting machine according to claim 2, characterized in that: The side wall of the yarn feeding shaft (3) is provided with a plurality of annular grooves (5), a rotating ring (6) is installed inside each annular groove (5), and the side wall of each rotating ring (6) is symmetrically provided with a clamping groove (7).

4. A yarn feeding mechanism for a circular weft knitting machine according to claim 2, characterized in that: The inner side wall of each yarn feeding drum (4) is symmetrically provided with a limiting groove (14), each limiting groove (14) is slidably connected to a clamping block (13), the side wall of each clamping block (13) is fixedly connected to a plurality of springs (15), and the other end of each spring (15) is fixedly connected to the side wall of the corresponding clamping groove (7).

5. A yarn feeding mechanism for a circular weft knitting machine according to claim 4, characterized in that: The side wall of each clamping block (13) is fixedly connected to a pull rod (20), and the two pull rods (20) located on the side wall of the same clamping block (13) penetrate the side wall of the yarn feeding drum (4) and are fixedly connected to a cross bar.

6. A yarn feeding mechanism for a circular weft knitting machine according to claim 1, characterized in that: The threaded block (12) is a cylindrical structure, the side wall of each threaded block (12) is provided with gear teeth, each gear (17) is meshedly connected with the gear teeth of an adjacent threaded block (12), and the top wall of each yarn coil fixing seat (16) is provided with a through hole (21).

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