CS224327B1 - Density control device for circular knitting machines - Google Patents

Abstract

The invention relates to a device for regulating the stitch density of a circular knitting machine for the production of hosiery articles and the like, having axially displaceable sinker lock parts. The invention achieves the actuation of these lock parts independently in the individual knitting systems, this being carried out in that the device has two circular stencils, of which one stencil has mechanical means for the angular part rotation of the other stencil and the other stencil is suitable for engagement with these means.

Description

production of hosiery or the like, wherein the change in density is accomplished by adjusting the needle retract locks by means of a density lever operated by a segment drum, wherein the mechanical transmission to the retract lock comprises two angularly rotatable templates with control ramps against which they engage kon ce. pivot levers of retractable bays.

One-cylindrical hosiery knitting machines are known in which the density of the knitted fabric is controlled so that the movement is axially with the needle cylinder or the platinum ring, while the needle retraction locks remain fixed and thus change the retraction depth relative to the discharge plane. This device has. The disadvantage is that both the axial and radial bearings of the needle cylinder have to be solved, which, in particular for high-speed machines, entails certain problems and problems. on the other hand, adjustment of the retraction depth in mono-knitting systems during knitting is not possible.

This is accomplished by providing at least one of the templates with angular means for angular rotation of the second template which is provided for engagement with these means.

The device according to the invention is shown in an exemplary embodiment in the drawings, in which FIG. 1 shows a top view of a density device. FIG. angular - rotation of the templates in the basic position, fig. 3 side view in direction P according to fig. 1, fig. 4 section A-A according to fig. 1

224 327

The known single cylinder four-axis circular knitting machine for the production of hosiery or the like is provided with a needle cylinder 1. (Fig. 3), in whose grooves the needles 2 and other known sinkers (not shown) are housed. In each knitting system, the retractable lock 2 is disposed axially slidably in the holder 6 and onto the telescope 2 _{and the} retractable lock 2, which is spring-loaded relative to the holder. On the second arm of the pivot lever 2, the threaded pins 8, 8 with threads for adjustment are arranged horizontally. position with respect to the templates 9, 2 * of circular shape, as shown in the figure. 1. The lower template 8 is mounted on the machine flange 10 and is centered in. 2 stands each p ^L EtAc ^Ch systems that ^to be ^coaxially with the ^AIC jehelUiím Si template 1. At the bottom, the upper template 2 - 2 'in středěná- also - hundred' *. from bottom 2 · Bottom template 2 is not sprung and top template. 2 is spring-loaded by a spring 11 (FIG. 1), which is fixedly fixed by its other end to the flange 10. Further, in the template 2, a pin 12 is pressed onto the end of the density levers 13 operated from the drum segments 14. on the circumference of the template 2 in the recess 91 a thumb 62 is slidably mounted. the lever 93 pivotally mounted on the pin 94 in the lower template 2 as shown in FIG. it is spring-loaded by a tension spring 95 with respect to the flange 10. - engagement with the shaped recess £ 1 # - in the upper template 2 '· ^ described - - mechanical means, i.e. thumb 92 - a - lever 93 {forms the mechanical means for angular rotation of the upper template -2 * relative to - the lower template 2 Further, on the other end of the thumb 92, the lever 15 arranged on the flange 10 abuts with its arcuate portion and is actuated from the segments of the drum 16, which is also arranged on the flange 10. Notches are formed on both templates 2i-2 '. that the pivot pins 8 of the pivoting levers 2 abut on the ramps 96 forming the notch edges of the template 2 and the pivot pins 8 * on the ramps 96X which form the notch edges of the template 8 *. The ramp of the ramps 96 and 96 'then determines the stroke size of the retractable locks 2 ·

The function of the device described above is ourLeediecc. A density lever 13 acting on the pin 12 deviates from the drum 14 rotating according to the machine program. and the pivot is thus the lower template 2i which is angularly rotated with respect to the upper template 2, whereby it transmits the movement to the pivoting levers 2 and the retracting locks 2 of the individual skin systems via the pivot pins 8 and the density changes. The upper template Rsytted the ramps 96 * on the pivot pins 8 * of the pivoting levers J does not act as shown in FIG. 2.

If the drum 16 of the pin 15 is now rotated, it pushes on the thumb 92 which is in the position shown in FIG. 2. The thumb 92 begins to press against the action of the spring 95 on the lever 11 which acts on the edge of the shaped recess 91 ' whose invasions 96, for example, only act on the sensing pins 8 in only two knitting systems, and thus only the density changes in these systems. The upper template R t of the thumb 91. the lever 93 is then in the position shown in FIG. 1.

According to another program, by rotating the drums 16 and 14, the templates J, J are brought back to their original position, although the upper template R under the action of spring 11 and the lower template via the pivot lever J from the retracting lock Jja.

In the present invention it is possible to perform various design modifications mechanical means for angular rotation relative to each template, e.g. lever 93 does not act on the recess 21 ^{of a} rotary * ^аУе Rolny or below. The main advantage of the invention is that the density grains in some knitting systems, for example when knitting unparalleled weaves, can be adjusted to other knitting systems in a simple manner, i.e., by circular patterns that can be adjusted to each other.

Claims (4)

1. Movement. round knitting machine for hosiery, etc. · goods, where the change of density is done by adjusting the retractable locks of needles by means of a density lever operated by a segmented drum, where - in mechanical transmission to the - retractable lock abutting the ends of the pivoting lock levers, characterized in that on one of the stencils (9) there are edge means (92, 93) for angular rotation of the other stencil (9 *) which is provided for engagement with these resources · - Hi -oth device according to claim 1, characterized in that the thumb - (92) is displaceably supported on the lower template (9), which bears a lever - (93) on the lower - template (9), which is pivotable. - the upper template (9 *) being positioned and seated, - the lever (19) operated from the drum - (16) · X 'is applied to the thumb (92). 3. - A hiet device according to - items 1 and 2, characterized in that - the thumb (92) and the lever (93) - are in the recess (91) of the upper template (9 *), the lever - - (93) resting the edge of the recess and is sprung - due to the flange- (10) of the machine · The movable device according to items 1 to 3> has acknowledged - that the end of the lever (15) acting on the thumb (92) is formed in an arc-like manner ·