JPH0359184B2 - - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a selector control device in a knitting machine for knitting socks, stockings, etc., for example, and particularly relates to a selector control device of this selector control device. This invention relates to a selector protection device during operation.

(Prior Art) A selector control device for this type of knitting machine that has already been proposed is constructed as shown in FIGS.
No. 288256).

That is, in FIGS. 6 to 8, a well-known knitting machine cylinder 1 is rotatably fitted in a machine frame of a circular knitting machine, and the outer periphery of this knitting machine cylinder 1 has a large number of vertical grooves. is formed. Further, knitting needles (not shown) and selectors 2 are fitted into each of the vertical grooves so as to move up and down, and a cam holder (not shown) is installed in the machine frame at the bottom of the knitting machine cylinder 1. is installed. Further, this cam holder is provided with a ring cam 3, and a plurality of mountain-shaped end cams 3a are formed on the outer periphery of the ring cam 3. Furthermore,
An elongated push-out cam (also referred to as a pull-out cam) 4 is fixed to the flat portion 3b of the ring cam 3 beside the end cam 3a.
The cam portion 4a is formed to push the lower portion 2a of the selector 2 outward. Further, on the stationary member where the end cam 3a is located, a plurality of selection levers 5 by a pattern knitting selection unit selectively push each butt 2b of each selector 2 to ride on the end cam 3a. The pattern knitting selection unit that operates this selection lever 5 is operated by a signal inputted in advance to the knitting program of the pattern knitting control device.

Therefore, when the knitting machine cylinder 1 rotates at high speed when knitting socks, for example, the selector control device in the knitting machine described above controls the knitting needles and selector fitted in the knitting machine cylinder 1 so as to move up and down. Since the cam portion 4a of the pushing cam 4 pushes the lower part 2a of the selector 2 outward, as shown in FIG. The received part (heel) 2c rides up on the end cam 3a, and as a result, as shown in FIGS. 8b and 8c, the upper part of the selector 2 lifts the knitting needle upward, so that the knitting needle By the joint action of this and a sinker (not shown), a pattern is created on the knitted sock fabric.

On the other hand, when the sock knitted fabric is not patterned (non-patterned knitting area), the cam portion 4 of the extrusion cam 4
a is for pushing out the lower part 2a of the selector 2 outward so that the pattern knitting selection unit can prevent the receiving part 2c formed on the lower part 2a of the selector 2 from running over the end cam 3a. Based on the signal from the knitting program of the pattern knitting control device,
Since the selection lever 5 is actuated to push the butt 2b of the selector 2, the receiving portion 2c formed at the lower part 2a of the selector 2 is disengaged from the end cam 3a and the flat portion of the ring cam 3 is moved. Since the selector 2 moves by sliding on the knitting needle 3b, the upper part of the selector 2 cannot lift the knitting needle upward.
The pattern knitting operation of the sock fabric due to the joint action of the knitting needles and the sinker is suspended.

(Problem to be Solved by the Invention) However, in the selector control device of the knitting machine described above, the extrusion cam 4 that pushes the lower part 2a of the selector 2 outward is fixed to the flat part 3b of the ring cam 3. For this reason, the knitting machine cylinder 1 rotates at high speed throughout the entire knitting area of the sock, and while the sock is being knitted, the pushing cam 4 pushes the lower part 2a of the selector 2 outward even in the non-patterned knitting area. ,
A receiving part 2 formed in the lower part 2a of this selector 2
Since the selector 2 is configured to ride up on the end cam 3a, the wear of the selector 2 becomes severe.
Not only is it necessary to replace a large number of selectors 2, but also time and effort are wasted, making it difficult to improve productivity.

The present invention has been made in view of the above-mentioned circumstances, and the knitting machine cylinder rotates at high speed and the operation of the selector is stopped in a non-patterned knitting area during sock knitting to prevent wear of the selector. to extend the life of the selector and without stopping the operation of the knitting machine.
It is an object of the present invention to provide a selector control device for a knitting machine that eliminates wasted time and labor due to replacing each selector and improves productivity.

[Structure of the invention]

(Means for Solving the Problems and Their Effects) The present invention includes a knitting machine cylinder equipped with a pair of upper and lower knitting needles and a selector rotatably fitted in a machine frame,
In this knitting machine, a cam holder is provided below the knitting machine cylinder, and a ring cam member is provided on the cam holder so as to move the selector up and down. An operating ring is rotatably fitted to the flat part, a rotary lever cam is pivotally attached to the operating ring so as to engage with the notch, and an operating lever is pivotally attached to the cam holder, and the operating lever cam is pivotally attached to the operating ring so as to engage with the notch. Connecting one arm lever to the operating ring through a long hole drilled in the ring cam member, connecting the other arm lever of the operating lever to a knitting control device, and at the time of pattern knitting;
The knitting control device rotates the actuating ring via the actuating lever, and the rotating lever cam of the actuating ring is engaged and disengaged from the notch, so that the selector can be operated only in the patterned knitting area during sock knitting. death,
During non-patterned knitting, the knitting control device returns the rotation of the operating ring via the operating lever and engages the rotating lever cam with the notch, thereby controlling the non-patterned knitting area during sock knitting. Now, the selector stops operating, prevents wear on the selector, extends the life of the selector, eliminates the wasted time and effort of replacing each selector without stopping the knitting machine, and improves productivity. It was designed to achieve this.

(Example) Hereinafter, the present invention will be described with reference to an illustrated example.

1 to 5, reference numeral 1 denotes a well-known knitting machine cylinder rotatably fitted in a machine frame of a circular knitting machine, and the outer periphery of this knitting machine cylinder 1 has many vertical grooves. 1a is formed. or,
A knitting needle 11 and a selector 2 are fitted into each of the vertical grooves 1a so as to move up and down, and a cam holder 1 is fitted in the lower machine frame of the knitting machine cylinder 1.
2 is arranged. Furthermore, this cam holder 12 is provided with a ring cam member 13 having a substantially U-shaped cross section, and a plurality of end face cams 13a forming a chevron shape are formed on the outer circumference of this ring cam member 13. . Furthermore, this end cam 13a
As shown in FIG.
4, and an actuating ring 15 is rotatably fitted into the flat portion 13c of the ring cam member 13 located between the end cam 13a and the inner circumferential wall portion 13b. Also, this operating ring 1
5, the rotating lever cam 16 is connected to the pin shaft 17.
A cam portion 16a is formed at the free end of the rotary lever cam 16 and biased by a spring so as to engage with the notch portion 14. Further, the back portion 16 of the rotary lever cam 16 located on the opposite side of the cam portion 16a
As shown in FIGS. 1 to 3, b is designed to be able to push the lower part 2a of the selector 2, but the cam portion 16a does not fit into the notch 1.
4, the above-mentioned rotating lever cam 1
As shown in FIGS. 1 and 2, the back portion 16b of the selector 6 does not push the lower portion 2a of the selector 2. In other words, this means that the knitting machine cylinder 1 rotates at high speed and the operation of the selector 2 is stopped in the non-patterned knitting area during sock knitting, thereby preventing wear of the selector 2 and extending the life of the selector 2. There is.

On the other hand, a column 17 is erected on the cam holder 12 beside the rotating lever cam 16.
An operating lever 18 is mounted on the support shaft 1 at the top of the support column 17.
It is pivotably mounted at 9. Further, the one-arm lever end 18a of the operating lever 18 is connected to the ring cam member 1.
The other arm rod end 18b of the actuating lever 18 is connected to the notch 15a of the actuating ring 15 through a long hole 20 bored in a part of the actuating ring 15. (also referred to as a command/drive device) 21 via a cable 22. moreover,
As shown in FIG. 3, a coil spring 24 is stretched between the other arm rod end 18b of the operating lever 18 and the support rod 23 erected on the cam holder 12. The elastic force of 24 biases the ring cam member 13 counterclockwise through the operating lever 18, thereby causing the cam portion 1 of the rotary lever cam 16 on the ring cam member 13 to
6a is engaged with the notch 14. Furthermore, on the stationary member where the end cam 13a is located, a plurality of selection levers 5 by a pattern knitting selection unit selectively push each butt 2b of each selector 2 to the end cam 13a. This selection lever 5 is provided so that it will not run over the
The pattern knitting selection unit which operates the pattern knitting selection unit is operated by a signal inputted in advance to the knitting program of the pattern knitting control device 21.

Hereinafter, the effects of the present invention will be explained.

Therefore, as shown in FIGS. 5a and 5b, for example, when knitting socks, if the entire knitting area of the sock is divided into a non-pattern knitting area X and a pattern knitting area Y, , b, the number of non-patterned knitting areas X increases, and such knitting will be explained.

(1) When knitting non-patterned knitting area X As shown in FIG. The ring cam member 13 is biased counterclockwise by the elastic force, so that the cam portion 16a of the rotary lever cam 16 on the ring cam member 13 is engaged with the notch portion 14 by the elasticity of the spring. Therefore, the back portion 16b of the rotary lever cam 16 is configured not to push the lower portion 2a of the selector 2 outward, as shown in FIGS. 2 and 3.

That is, the knitting machine cylinder 1 rotates at high speed and the operation of the selector 2 is stopped in the non-patterned knitting region X during sock knitting to prevent wear of the selector 2 and extend the life of the selector 2. are doing.

(2) When knitting pattern knitting area Y As shown in FIG. By rotating the ring cam member 13 clockwise against the elastic force, the rotating lever cam 16 on the ring cam member 13 is rotated.
The cam part 16a comes off the notch part 14 against the elasticity of the spring and comes into contact with the inner circumferential wall part 13b, so that the back part 1 of the rotary lever cam 16
6b is pushed out to push the lower part 2a of the selector 2 outward, as shown in FIG. 4, so it is rotating together with the knitting machine cylinder 1 which is rotating at a high speed. As shown in FIG. 4, the knitting needles 11 and the selector 2 are formed at the lower part 2a of the selector 2 by the back part 16b of the rotary lever cam 16 pushing the lower part 2a of the selector 2 outward. The received part (heel) 2c rides on the end cam 13a,
As a result, the upper part of the selector 2 is connected to the knitting needle 11.
Since the knitting needle 11 is lifted upward, the knitting needle 11 works together with a sinker (not shown) to create a pattern on the knitted sock fabric.

〔Effect of the invention〕

As described above, according to the present invention, a knitting machine cylinder equipped with a pair of upper and lower knitting needles and a selector is rotatably fitted in the machine frame, a cam holder is provided below the knitting machine cylinder, and a ring cam member is attached to the cam holder. In the knitting machine in which the selector is arranged to move up and down, a notch is formed in the inner circumferential wall of the ring cam member, and an operating ring is rotatably fitted in the flat part of the ring cam member, so that the selector is moved up and down. A rotary lever cam is pivotally attached to the ring so as to engage with the notch, and an operating lever is pivotally attached to the cam holder, and one arm of the operating lever is inserted into the elongated hole bored in the ring cam member. The operating lever is connected to the actuating ring through the operating ring, and the other arm of the actuating lever is connected to the knitting control device, so that in the non-patterned knitting area during the knitting of socks, the selector's operation is stopped and the selector is Not only can wear be prevented, but the life of the selector can be extended, and without stopping the knitting machine operation, wasted time and labor due to replacing each selector can be eliminated, and productivity can be improved.

[Brief explanation of drawings]

FIG. 1 is a vertical sectional view showing the main parts of the selector control device of a knitting machine of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a perspective view of the same, and FIG. 4 is an operation of the present invention. Figures 5a and 5b are diagrams for explaining socks knitted by the selector control device of the knitting machine of the present invention, and Figure 6 is a diagram showing the selector control of the knitting machine that has already been proposed. FIG. 7 is a plan view showing the main parts of the device, FIG. 7 is a perspective view showing the main parts of the selector control device of the knitting machine that has already been proposed, and FIGS. 8 a, b, and c are the knitting machines that have already been proposed. FIG. 3 is a diagram for explaining the operation of the selector control device of FIG. 1...Knitting machine cylinder, 2...Selector, 5...
Selection lever, 11... knitting needle, 12... cam holder, 13... ring cam member, 14... notch,
15... Operating ring, 16... Rotating lever cam,
16a...cam part, 18...operating lever, 21...
Formation control device, 22...cable.

Claims (1)

[Claims] 1. A knitting machine cylinder equipped with a pair of upper and lower knitting needles and a selector is rotatably fitted in the machine frame, a cam holder is provided below the knitting machine cylinder, and a ring cam member is attached to the cam holder so as to move the selector up and down. In the knitting machine provided, a notch is formed in the inner circumferential wall of the ring cam member, an operating ring is rotatably fitted in the flat part of the ring cam member, and a rotary lever cam is attached to the operating ring in the notch. On the other hand, an operating lever is pivotally attached to the cam holder, and one arm of the operating lever is connected to the operating ring by passing through an elongated hole formed in the ring cam member. A selector control device for a knitting machine, characterized in that the other arm of the operating lever is connected to a knitting control device.