WO2022027991A1

WO2022027991A1 - Yarn feeding mechanism of flat knitting machine

Info

Publication number: WO2022027991A1
Application number: PCT/CN2021/085394
Authority: WO
Inventors: 孙平范; 徐卫东; 李立军; 胡跃勇; 海港
Original assignee: 宁波慈星股份有限公司
Priority date: 2020-08-06
Filing date: 2021-04-02
Publication date: 2022-02-10
Also published as: CN111850793A

Abstract

Disclosed is a yarn feeding mechanism of a flat knitting machine, comprising top rods. A first yarn carrier assembly and a second yarn carrier assembly which are driven independently of each other are arranged on two sides of each top rod, and the first and second yarn carrier assemblies can slide along the top rod; the first yarn carrier assembly further comprises a first yarn carrier and a yarn carrier guide plate, and the first yarn carrier is arranged in a guide groove in the middle of the yarn carrier guide plate; the yarn carrier guide plate is provided with a first protruding block protruding towards the second yarn carrier assembly, and a second protruding block protruding along a direction away from the second yarn carrier assembly, and the first protruding block and the second protruding block are located on two sides of the first yarn carrier; the second yarn carrier assembly further comprises a second yarn carrier, and the bottom end of the second yarn carrier abuts against a convex surface of the first protruding block or a concave surface of the second protruding block. When a multi-needle bed structure is used to knit a tubular fabric, by adjusting the position of the second yarn carrier in the front-rear direction, such as close to a front needle bed or close to a rear needle bed, i.e., by means of position change, the color inversion phenomenon is eliminated.

Description

A yarn feeding mechanism of a flat knitting machine

technical field

The utility model belongs to the technical field of knitting machinery, in particular to a yarn feeding mechanism of a flat knitting machine.

Background technique

When the flat knitting machine performs plating knitting, two independent yarn feeders drive the main yarn and the plating yarn respectively, and arrange them in the order of the main yarn and the plating yarn, and then supply the yarn to the knitting needle, so that the main yarn appears on the surface side of the fabric. Knitted fabrics need to always maintain the positive and negative relationship between the main yarn and the plating yarn, but sometimes the knitted fabric will have reverse color, that is, the positive and negative relationship between the plating yarn and the main yarn is reversed. In order to eliminate the reverse color phenomenon of knitted fabrics, it is usually necessary to fine-tune the positions of the two yarn feeders, so as to adjust the distance and angle of the two yarns.

When feeding yarn from two needle beds, the yarn feeder is always located at the center of the plate mouth of the front and rear needle beds. There is only a left and right position difference between the main yarn and the plating yarn. There is no position difference between the front and rear of the knitting needle. When using the multi-needle bed structure, since the angular position of the front and rear needle beds has changed, the main yarn and the plating position need to be adjusted to the front and rear position difference, so as to avoid the phenomenon of reverse color during the plating process.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a yarn feeding mechanism for a flat knitting machine which is suitable for a multi-needle bed structure and can eliminate the phenomenon of color inversion by adjusting the position difference between the front and rear of the yarn feeder.

Therefore, the technical scheme of the present invention is as follows: a yarn feeding mechanism for a flat knitting machine, comprising an aerial pole, and conveyor belts are provided on both sides of the aerial pole, and the conveyor belts are independent of each other; first yarns are respectively provided on both sides of the aerial pole A yarn feeder assembly and a second yarn feeder assembly, each of the first and second yarn feeder assemblies includes a yarn feeder seat, the yarn feeder seat is fixed on the conveyor belt, and the first and second yarn feeder assemblies can slide along the mast; it features in:

The first yarn feeder assembly also includes a first yarn feeder and a yarn feeder guide plate, the first yarn feeder and the yarn feeder guide plate are installed on the first yarn feeder seat, and the first yarn feeder is placed in the middle of the yarn feeder guide plate to guide the in the groove; the yarn feeder guide plate is provided with a first protrusion protruding toward the direction of the second yarn feeder assembly, and a second protrusion protruding away from the second yarn feeder assembly. The first protrusion and the second protrusion The protruding blocks are located on both sides of the first yarn feeder; the second yarn feeder assembly further includes a second yarn feeder, and the bottom end of the second yarn feeder abuts on the convex surface of the first protruding block or the concave surface of the second protruding block.

Preferably, a square chute is also provided on the first yarn feeder seat, a movable slider is arranged in the square chute, and a rack is provided on the side of the slider facing the sky pole; a transmission is arranged on the sky pole The side of the transmission shaft facing the first yarn feeder seat is provided with a toothed structure, which meshes with the rack on the slider; the first yarn feeder is fixed on the slider, and the transmission shaft drives the first yarn feeder along the yarn feeder The guide groove of the guide plate moves up and down.

Preferably, the square chute of the first yarn feeder seat is further provided with a spring, one end of the spring abuts on the top of the square chute, and the other end abuts on the slider.

Preferably, both the yarn feeder guide plate and the second yarn feeder are provided with porcelain eyes.

Preferably, the upper and lower ends of the yarn feeder seat are provided with pulleys, the top and bottom of the mast are provided with steel wires, and the pulleys and the steel wires are in rolling fit.

Preferably, the lower end of the yarn feeder seat is provided with two pulleys, which are installed on the yarn feeder seat through long slot holes, and a flat spring and a flat spring control board are arranged between the two pulleys at the lower end.

The first yarn feeder of the utility model is a liftable yarn feeder, which is used for supplying the main yarn, and the second yarn feeder is a fixed yarn feeder, which is used for supplying the plating yarn. The mouth is dislocated to prevent collision with the yarn feeder on the opposite side or other masts. For the convenience of processing and installation, the first yarn feeder and the second yarn feeder can use the same structure of the yarn feeder seat. The first yarn feeder is installed on the liftable slider, and the second yarn feeder can be directly fixed on the yarn feeder seat. .

In the utility model, two sets of yarn feeders are respectively arranged on both sides of the mast and are driven by independently driven conveyor belts, so that the two sets of yarn feeders can move independently along the mast; the bottom of the first yarn feeder and the second yarn feeder are opposite to each other. In the inclined state, a first protrusion protruding from the rear needle bed and a second protrusion protruding from the front needle bed are provided on both sides of the first yarn feeder. The second yarn feeder is an elastic sheet-like structure. When the second yarn feeder touches the protruding surface of the first bump, the first bump can make the second yarn feeder close to the rear needle bed; when the second yarn feeder moves When the position of the second bump is reached, the side of the second bump toward the second yarn feeder is in a groove state, and the second yarn feeder is pressed against the bottom of the groove, so that the second yarn feeder is close to the front needle bed. The first and second protruding blocks with opposite protruding directions cause a position difference between the two yarn feeders in the front-rear direction. When the multi-needle bed structure is knitting tubular fabrics, by adjusting the position of the second yarn feeder in the front-rear direction, for example, close to the front needle bed or close to the rear needle bed, the reverse color phenomenon can be eliminated by changing the position.

Description of drawings

Further detailed description will be given below in conjunction with the accompanying drawings and the embodiments of the present utility model.

Fig. 1, Fig. 2 are structural representations of the present utility model;

Figure 3 is a side sectional view of the installation of the yarn feeder assembly and the mast;

Figures 4 and 5 are the exploded views of the parts of the yarn feeder seat;

Figures 6 and 7 are schematic views of the structure of the first yarn feeder assembly;

Fig. 8 is the structural representation of the yarn feeder guide plate;

Figure 9 is a schematic structural diagram of the second yarn feeder.

Marked as: mast 1, conveyor belt 2, yarn feeder seat 3, lining plate pressing plate 4, lining plate main body 5, pulley 6, steel wire 7, flat spring 8, flat spring support block 9, flat spring control board 10, transmission Shaft 11, tooth structure 12, square chute 13, slider 14, rack 15, spring 16, spring stopper 17, first yarn feeder assembly 18, second yarn feeder assembly 19, first yarn feeder 20, yarn Nozzle connecting rod 21 , yarn feeder guide plate 22 , first bump 23 , second bump 24 , second yarn feeder 25 , porcelain eye fixing plate 26 , porcelain eye 27 .

detailed description

See attached image. The yarn feeding mechanism described in this embodiment includes four antenna rods 1 arranged in parallel, two conveyor belts 2 are set on both sides of each antenna rod, a yarn feeder assembly is installed on each transmission belt, and the antenna rod is also provided with The drive motor drives the conveyor belt, and all conveyor belts are independent of each other, which can drive 16 sets of yarn feeder assemblies. A first yarn feeder assembly 18 is installed on one side of a single mast 1, and a second yarn feeder assembly 19 is installed on the other side.

For the convenience of installation, all yarn feeder assemblies can use a common yarn feeder base 3, on which a lining plate pressing plate 4 and a lining plate main body 5 are fixed. The lining plate pressing plate 4 and the lining plate main body 5 are fixed by screws, and the conveyor belt 2 is clamped Between the lining plate pressing plate 4 and the lining plate main body 5, and the lining plate main body is also provided with locking teeth which are locked with the conveyor belt.

Each of the four corners of the yarn feeder seat 3 is provided with a pulley 6, and the top and bottom of the mast are provided with steel wires 7. The pulleys can roll along the steel wires, so that the two yarn feeder assemblies can slide along the mast. The two pulleys at the lower end of the yarn feeder seat 3 are installed on the yarn feeder seat through long slot holes, and a flat spring 8, a flat spring support block 9 and a flat spring control board 10 are arranged between the two pulleys at the lower end. The plate 10 is installed on the yarn feeder seat through the pin, and the two ends can rotate around the middle pin. The two flat spring control plates 10 are connected to the flat spring 8 at the opposite end, and the other end is fixed on the pulley. The flat spring support block 9 is located in the flat spring. The middle position can limit the upward movement of the flat spring. In the initial state, the end of the flat spring control plate 10 connected to the pulley is upturned, so that the two pulleys at the lower end are above the long slot holes. The connected end is upturned, and under the elastic force of the flat spring, the pulley can be closely matched with the steel wire.

Both sides of the mast 1 are provided with a transmission shaft 11, and the side of the transmission shaft facing the yarn feeder seat is provided with a toothed structure 12; the yarn feeder base 3 is provided with a square chute 13, and a The moving slider 14, the slider 14 is provided with a rack 15 on the side facing the mast; the toothed structure 12 on the transmission shaft meshes with the rack 15 on the slider, which can drive the slider up and down along the square chute Move; the square chute 13 is also provided with a spring 16 , one end of the spring is fixed on the top of the square chute through the spring stopper 17 , and the other end is pressed against the slider 14 .

The yarn feeder assembly can be divided into a first yarn feeder assembly 18 and a second yarn feeder assembly 19, which are installed on both sides of the mast, and the first yarn feeder assembly and the second yarn feeder assembly use a yarn feeder seat with a common structure. In addition to the first yarn feeder seat, the first yarn feeder assembly 18 also includes a first yarn feeder 20, a yarn feeder connecting rod 21 and a yarn feeder guide plate 22. The first yarn feeder 20 is fixed on the yarn feeder through the yarn feeder connecting rod 21. On the slider 14, the slider can drive the first yarn feeder to move up and down along the square chute; the yarn feeder guide plate 22 is fixed on the bottom of the first yarn feeder seat, and a guide groove is provided in the middle of the yarn feeder guide The nozzle moves up and down along the guide groove. The two sides of the guide groove of the yarn feeder guide plate are provided with first bumps 23 protruding toward the second yarn feeder assembly, and second bumps 24 protruding away from the second yarn feeder assembly. The protruding directions of the bump and the second bump are opposite.

In addition to the second yarn feeder seat, the second yarn feeder assembly 19 also includes a second yarn feeder 25, and the second yarn feeder is directly fixed on the second yarn feeder seat. The sliders, springs and other related lifting and lowering components on the second yarn feeder seat do not work. It can be installed or not installed during installation, and only the movable yarn feeder seat is left alone. When the first yarn feeder assembly and the second yarn feeder assembly are installed on the mast, the first yarn feeder 20 and the second yarn feeder 25 are relatively inclined, that is, the bottom of the first yarn feeder and the second yarn feeder are close to each other, The second yarn feeder 25 is an elastic sheet structure. When the bottom end of the second yarn feeder touches the protruding position of the first bump 23 or the concave position of the second bump 24, the first yarn feeder and the second The yarn feeder has a position difference in the front-rear direction.

A porcelain eye fixing plate 26 is also installed on the yarn feeder guide plate and the second yarn feeder, and the porcelain eye 27 is installed on the porcelain eye fixing plate.

The antenna rod is located between the front and rear needle beds, the first yarn feeder 20 is the main yarn feeder, the second yarn feeder 25 is the plating yarn feeder, the first yarn feeder is located in the center of the plate mouth, and the second yarn feeder is close to the front needle bed or close to Back needle bed.

When the machine head runs to the left and the front needle bed is knitting, the positional relationship between the first yarn feeder and the second yarn feeder is as shown in Figure 1. At this time, the bottom end of the second yarn feeder 25 is located in the depression of the second convex block 24 of the yarn feeder guide plate. At the position, the second yarn feeder 25 is slightly close to the front needle bed.

When the machine head runs to the right and the rear needle bed is knitting, the position of the second yarn feeder 25 changes. The positional relationship between the first yarn feeder and the second yarn feeder is shown in Figure 2. At this time, the bottom end of the second yarn feeder 25 is located at the yarn feeder guide. At the protruding position of the first projection 23 of the plate, the second yarn feeder 25 is slightly close to the rear needle bed.

Claims

A yarn feeding mechanism of a flat knitting machine comprises an antenna rod, and conveyor belts are provided on both sides of the antenna rod, and the conveyor belts are independent of each other; The first and second yarn feeder assemblies both include a yarn feeder seat, the yarn feeder seat is fixed on the conveyor belt, and the first and second yarn feeder assemblies can slide along the mast; it is characterized in that:

The first yarn feeder assembly also includes a first yarn feeder and a yarn feeder guide plate, the first yarn feeder and the yarn feeder guide plate are installed on the first yarn feeder seat, and the first yarn feeder is placed in the middle of the yarn feeder guide plate to guide the in the groove; the yarn feeder guide plate is provided with a first protrusion protruding toward the direction of the second yarn feeder assembly, and a second protrusion protruding away from the second yarn feeder assembly. The first protrusion and the second protrusion The protruding blocks are located on both sides of the first yarn feeder; the second yarn feeder assembly further includes a second yarn feeder, and the bottom end of the second yarn feeder abuts on the convex surface of the first protruding block or the concave surface of the second protruding block.
The yarn feeding mechanism of a flat knitting machine according to claim 1, characterized in that: the first yarn feeder seat is further provided with a square chute, and a movable sliding block is arranged in the square chute, and the sliding block is oriented toward A rack is provided on one side of the antenna rod; a transmission shaft is arranged on the antenna rod, and the side of the transmission shaft facing the first yarn feeder seat is provided with a toothed structure, which meshes with the rack on the slider; the first yarn The feeder is fixed on the slider, and the transmission shaft drives the first yarn feeder to move up and down along the guide groove of the yarn feeder guide plate.
A yarn feeding mechanism for a flat knitting machine as claimed in claim 2, characterized in that: the square chute of the first yarn feeder seat is further provided with a spring, one end of the spring abuts on the top of the square chute, and the other end abuts on the top of the square chute. on the slider.
The yarn feeding mechanism of a flat knitting machine according to claim 1, wherein the yarn feeder guide plate and the second yarn feeder are both provided with porcelain eyes.
The yarn feeding mechanism of a flat knitting machine according to claim 1, wherein the upper and lower ends of the yarn feeder seat are provided with pulleys, the top and bottom of the mast are provided with steel wires, and the pulleys and the steel wires are rollingly matched.
The yarn feeding mechanism of a flat knitting machine according to claim 5, wherein the lower end of the yarn feeder seat is provided with two pulleys, which are installed on the yarn feeder seat through long slot holes, and the two pulleys at the lower end are between the two pulleys. Equipped with flat spring and flat spring control panel.