JPS6331578B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a central control unit for stitch volume and thread guiding devices in a circular knitting machine.

Normally, when changing the stitch size of a knitted fabric in a circular knitting machine, the cam position of each yarn feeder is adjusted individually to match the stitch amount to the desired stitch size. In other words, by adjusting the cam position, the operating locus of the needle is changed. By the way, at this time, if the set position of the yarn guide device that supplies yarn to the knitting needles is not adjusted at the same time, the knitting needles and the thread path of the yarn guide device will come into contact and the knitting needles will be damaged in an instant. Therefore, when changing the stitch count of a knitted fabric, it is necessary to adjust both the stitch amount and the thread guide device at the same time. This is a very troublesome task and requires an experienced person to make adjustments.
Moreover, in the case of a circular knitting machine with a large number of yarn feeders, the more yarn feeders there are, the more labor and time are consumed than necessary each time the stitches of the knitted fabric are changed, resulting in an increase in operating costs. .

The present invention has been made in view of the above problems, and provides a simultaneous central control device that can easily and quickly adjust the stitch amount and the position of the thread guide device without requiring special skill. An object of the present invention is to provide a circular knitting machine with multiple yarn feed ports.

The device of the invention achieving this object comprises a yarn guiding device supported by a yarn carrier ring support via a yarn carrier ring, a cam holder with a control cam for the knitting needles, and a cam holder with said yarn carrier ring support and cam holder. In a multi-yarn-feeding circular knitting machine comprising a supporting cam ring, the cam ring is divided into an inner cam ring and an outer cam ring connected by a guide means, and the yarn carrier ring support and cam holder are mounted on the inner cam ring. The inner cam ring is placed on the inner cam ring, and means is provided to allow only the inner cam ring to be raised and lowered independently.

Preferably, the means that allows only the inner cam ring to be raised and lowered independently includes an adjuster string threadably engaged with the inner cam ring, one or more small gears engaged with the adjuster string, and a circular knitting machine surface. It consists of a small gear drive shaft that protrudes from the top, but a settling ring for supporting the adjuster string may be added to these.

Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

In FIG. 1, reference numeral 1 indicates a cylinder, and on the outer periphery of the cylinder 1 are formed needle grooves 2 arranged in a circular manner and extending in the axial direction. Each needle groove 2 accommodates a knitting needle 3 that is vertically slidable.

A cam holder 4 facing the cylinder 1 is fixed on an inner cam ring 6 by a screw 5. A cam 7 for controlling or operating the knitting needles 3 is attached to the cam holder 4.

The sinkers 8, which cooperate with the knitting needles 3 during knitting, are slidable in the radial direction on a horizontally arranged sinker dial 9. The sinker 8 is controlled by a sinker cam 11 mounted on a sinker cap 10. A sinker cap 10 is housed within a cap ring 12.

There is a drive gear 13 integrally attached to the lower part of the cylinder 1, which rotates at the same speed as the cylinder 1 when driven from a drive source normally located in the machine.

Reference numeral 14 designates a base, to which an inner cam ring 6 and an outer cam ring 16 are connected by guide means, e.g. guide pins 15.
is accommodated. The guide pins 15 are provided at about six locations on the circumference of the cam ring. The outer cam ring 16 is fixed to the base 14 by screws 17. The inner cam ring 6 can be moved up and down by the configuration described below. There is an adjuster string 18 on the outside of the inner cam ring 6, and the inner ring 6 and adjuster string 18 are connected to both threaded portions 19.
(19a, 19b) are screwed together. A settling ring 21 is located at the bottom of the adjuster string 18.
The adjuster ring 18 is rotatably housed between the set ring 21 and the outer cam ring 16. 2-2 in Figure 3
As clearly shown in FIG. 2, which is a cross-sectional view, a spring 20 is provided between the inner cam ring 6 and the adjuster string 18.
Accordingly, the inner cam ring 6 is connected to the adjuster ring 1.
This prevents the inner cam ring 6 from tilting due to the gap between the threaded parts 19 and the threaded parts 19b of the inner cam ring 6. The springs 20 are provided at about six locations on the circumference of the cam ring. Settling 21 is attached to outer cam ring 16 by screws 22, as shown in FIG. Referring again to FIG. 2, a small gear 23 that meshes with the adjuster string 18 is arranged at an appropriate position on the outside of the adjuster string 18. Although one small gear 23 may be provided, it is also possible to provide a plurality of small gears. A shaft portion 24 that penetrates and projects from the outer cam ring 16 is fixed to the small gear 23 . When the head groove 24a of this shaft portion 24 is turned with a screwdriver, the movement rotates the small gear 23, and further the asia string 18.
Rotate. This rotational movement of the adjuster string 18 moves the inner cam ring 6 in the vertical direction through the threaded portion 19 and with the guide pin 15 as a guide.

Four to six yarn carrier ring supports 25 are arranged at equal intervals on the inner cam ring 6, and the yarn carrier ring 2 is attached to the tip of the yarn carrier ring support 25 by a screw 27.
6 is installed. Yarn carrier ring 2
A thread guide device 28 is attached to the lower side of the thread guide 6 by a screw 29. This yarn guide device 28 has a holder 30 and a yarn carrier 31 for guiding the knitting yarn.

On the other hand, on the outer cam ring 16, the yarn carrier ring support 25 is provided with a thread extending through the center thereof.
There are cap ring supports 32 arranged at equal intervals like the yarn carrier ring 26, and the cap ring 12 is fixed to the tip of the cap ring support 32 by a screw 33.

According to the present invention having the above-mentioned structure and operation, only the inner cam ring can be raised and lowered independently, so that the cam holder and yarn carrier ring support placed on this inner cam ring, as well as the yarn guide device, are raised and lowered at the same time. . Therefore, the amount of stitching and the position of the thread guide device can be adjusted extremely easily and in a short time without requiring any special skill, thereby improving productivity.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a main part of a knitting section of a circular knitting machine according to the present invention. FIG. 2 is a sectional view taken along line 2-2 in FIG. 3. FIG. 3 is a plan view of the knitting section of the circular knitting machine according to the present invention. 4...Cam holder, 6...Inner cam ring,
8...Sinker, 10...Sinker cap, 1
2... Cap spring, 14... Base, 15...
...Guide pin (guiding means), 16...Outer cam ring, 17...Screw, 18...Adjustment ring, 19, 19a, 19b...Threaded part, 20...
Spring, 21...Settling, 22...Screw, 2
3... Small gear, 24... Shaft portion, 25... Yarn carrier ring support, 26... Yarn carrier ring, 28... Yarn guide device, 31... Yarn carrier.

Claims (1)

[Claims] 1. A yarn guide device supported by a yarn carrier ring support via a yarn carrier ring, a cam holder including a knitting needle control cam, and a cam ring supporting the yarn carrier ring support and the cam holder. In the multi-yam feeder circular knitting machine, the cam ring is divided into an inner cam ring and an outer cam ring connected by a guide means, and the yarn carrier ring support and cam holder are placed on the inner cam ring. A central control device for a stitch amount and yarn guide device in a circular knitting machine, characterized in that a means is provided for raising and lowering only this inner cam ring independently. 2. The means that allows only the inner cam ring to be raised and lowered independently includes an adjuster string that is threadedly engaged with the inner cam ring, one or more small gears that are engaged with this adjuster string, and that protrudes from the surface of the circular knitting machine. A central control device for a stitch amount and thread guide device in a circular knitting machine according to claim 1, characterized in that the central control device comprises a drive shaft of a small gear for controlling a stitch amount and a thread guiding device in a circular knitting machine. 3. The means that allows only the inner cam ring to be raised and lowered independently includes an adjuster string that is screwed together with the inner cam ring, a set ring that supports this adjuster string, and one or more small gears that mesh with the adjuster string. 2. A central control device for a stitch amount and thread guide device in a circular knitting machine according to claim 1, characterized in that the device comprises: a drive shaft for a small gear protruding from the surface of the circular knitting machine;