DE2139664A1 - SAMPLE DEVICE FOR CIRCULAR KNITTING MACHINES - Google Patents

Description

C. TERROT SÖHNE MASCHINENFABRIK STUTTGART-BAD CANNSTATT CIRCULAR KNITTING MACHINES Pattern device for circular knitting machines

The invention relates to a pattern device on circular knitting machines with groups of pivotable and staggered lying selector feet equipped locks. Such pattern devices are in various embodiments already known .

For example, in the patent application P £! Ll84o6.5 there is already one such a pattern device described, with slides layered on top of each other movable transversely to them on the pushers that are operated by a sample carrier without or by means of intermediate links, with the following combination features:

a) for each slide at least one electronically controlled holding magnet is provided, which directly or indirectly on the slide acts,

b) each slide is under the action of a spring force that tries to move it,

c) each slide is moved individually at periodic intervals by a mechanical control that is controlled by the rotating cylinder is driven.

There are also with regard to the patent application P 21l84o6.5 corresponding equivalents are also known. These equivalents result, among other things, from the task of the spring force to be replaced by the application of magnetic forces. A first advantageous variant with regard to the patent application P 21l84o6.5 consists of a combination of the following features: a) Mechanical components act on the pusher, with or without intermediate links through a pattern carrier operated, - 2 -

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ta) an electronically controllable magnet is provided for each mechanical component, which directly or indirectly the aim is to keep the mechanical component in a 1st end position,

c) each mechanical component is individually at periodic intervals by a mechanical control in the 1. End position shifted, whereby the mechanical control is driven by the rotating cylinder,

d) a permanent magnet or electromagnet is provided for each mechanical component, directly or indirectly the aim is to move the mechanical component into the 2nd end position at periodic intervals.

Another advantageous variant consists in the combination of the following features:

a) a permanent magnet or electromagnet is provided for each mechanical component, directly or indirectly the aim is to move the mechanical component into the 2nd end position at periodic intervals,

b) the permanent magnet or electromagnet is connected to the mechanical control or to the mechanical Articulated control.

This variant, known as the state of the art, makes it possible to dimension all magnets so that they only have one Exercise holding function; This eliminates the need for return springs.

According to the usual construction of circular knitting machines, it is useful if the 1st end position is the advanced one End position is. Of course, the reverse is also conceivable.

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The invention relates to a further pattern device on circular knitting machines with groups of pivotable and with staggered selector feet equipped locks, with the combination of the following features:

a) double-armed levers pivotable transversely to them act on the pushers,

b) are several, preferably four, double-armed levers articulated eccentrically on a rotating disc,

c) several rotating disks are combined to form a disk stack,

d) the speed of rotation of the rotating double-armed lever and the pusher are identical, as far as the two engagement diameters are concerned,

e) a double-armed lever is pivoted according to the sample and fixed according to the sample by means of a control lever,

f) several control levers are stacked one above the other,

g ·) a mechanically acting device, preferably one Taper, causes every double-armed lever in is pushed back into the starting position at regular intervals,

h) several mechanically acting devices, preferably CchrUgen, are stacked one above the other

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It is advantageous if, in addition, the combination of the following Features present:

a) each control lever acts one after the other on those double-armed levers that are on the relevant rotating Seheibe are articulated,

b) the mechanically acting device acts one after the other on those double-armed levers that are articulated on the rotating disk in question,

Finally, the combination of the following features is two-dimensional:

a) each double-armed lever has two end sections provided, with each end section corresponding to a different level line,

b) one control lever each acts on the first end section of the double-armed lever,

c) a mechanically acting device acts on the second end section of the double-armed lever.

The control lever is expediently influenced as follows :

a) for each control lever at least one electrically / electronically controlled holding magnet is provided, which the Holds the control lever in a 1 end position,

b) each control lever is under the action of a spring force, by means of which it is activated when the holding magnet is switched off is pivoted into a 2nd end position,

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c) each, control lever is operated individually at periodic intervals by a further mechanical control moved, which is driven by the rotating cylinder.

In the drawing, an embodiment of the invention is shown as a plan view of a Lock segment:

A rotating cylinder 1 is in a manner known per se with groups of pivotable and staggered groups Selector feet equipped locks 2 provided. The knitting needles, not shown, are as usual by the Stösser influenced.

The pusher is influenced by double-armed / levers 3, which are articulated eccentrically on a rotating disk. 4a, 4b. \

In the exemplary embodiment shown, it is assumed that 12 pushrods 2 are combined to form a group and that the staggered selector feet correspond to 12 different level lines. Accordingly 12 rotating disks 4a, 4b .. are combined to form a disk stack 4. The disks 4a, 4b .. are attached to a shaft 5 in such a way that they are in the form of a camshaft with respect to the double-armed lever are offset. This offset must correspond to the staggered selector feet of the pusher 2. There are four double-armed levers 3 on each disc arranged.

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The stack of disks 4 is moved over the rotating cylinder 1 driven in such a way that the speed of rotation of the rotating double-armed lever 3 and the pusher 2 are identical as far as the two engagement diameters are concerned.

By means of a control lever J each, the levers 3 are pivoted according to the pattern and fixed according to the pattern. Every control lever is influenced by three force components:

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I) For each control lever 7 an electronically controlled holding magnet 8 is provided * which controls the control lever J in an i. End position holds. In the AiisflUmaEigsbelspiel shown, the 1st end position means that the lever. 3 swiveled and austergeiuäss fixed w ± .tü

II) Each control lever 7 is under the action of bucket spring force 9, by means of which it is pivoted into a 2nd end position when the holding device 8 is switched off. In the illustrated embodiment it means ₃ that the force of the spring 9 is opposite to the force of the magnet 8.

III) Each control lever 7 is individually In periodic Intervals by a mechanical control 10 moved, which is driven by the rotating cylinder 2. For the design of the mechanical Control are numerous possibilities conceivable; in the A well-known notation was used. BIe periodic Intervals correspond to the Madel division, so that lim present case 12 needle positions of a rotation the Moekenwelle 10 correspond.

The action of the control lever 7 on the respective lever 3 takes place mechanically, with the combination of the following features:

I) Each double-armed lever 3 has two end sections 3a and 3b, each end portion having a corresponds to another level line.

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II) The control lever J acts on the 1st end section 3a of the lever 3

III) A mechanically acting device 11 causes each lever 3 at periodic intervals in the Starting position is pushed back; the device 11 acts on the 2nd end section 3b of the Lever 3 on · In this example, there is the Mechanically acting device consisting of a stationary cam with a run-on bevel, the End section 3t »is then pivoted when it hits the Approach slope.

The. The pushers 2 are displaced via the 2nd end section 3b of the lever 3.

The particular advantages of the exemplary embodiment shown here are:

1) By using a double-armed control lever 7, the holding force of the magnet 8 can be kept low if the force components with regard to the pushers and the lever arms are selected accordingly. 2) The automatic return of the end sections yo of the lever 3 takes place safely and largely free of wear and tear

3) The pivoting of the pushrods 2 takes place without impactartipe W loading, so that here too there is only little insurance.

occurs. ·

- patent claims -

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Claims (2)

2139864 Claims l) Pattern device on circular knitting machines with groups of swiveling and staggered adjustable feet, characterized by the Combination of the following features: a) double-armed levers (3) *, which can be pivoted transversely to them, act on the pushers b) several, preferably four, double-armed levers ("5) are articulated eccentrically on a rotating disc (4a, 4b, 4c ...), c) several rotating disks (4a, 4b, 4c ...) are combined to form a disk stack (4), d) the speed of rotation of the rotating double-armed lever (3) ^and the pusher are identical as far as the two engagement diameters are concerned, e) by means of a control lever (7) becomes a double-armed Lever (3) pivoted according to the pattern and fixed according to the pattern, f) several control levers (7) are stacked one above the other arranged, g) a mechanically acting device, preferably an incline (Ii) causes each double-armed Lever (3) at periodic intervals is pushed back into the starting position, h) several mechanically acting devices, preferably Slopes (11) are stacked one above the other. 309807 / Q650 2133664 2) pattern device according to claim, characterized by the combination of the following features: a) each control lever (7) acts one after the other on those double-armed levers (3) that are on the relevant rotating disc (4a, 4b, 4c ...) are articulated, b) the mechanically acting device (".") acts one after the other on those double-armed levers (3 ) which are articulated on the respective rotating disk "4a, 4b." "3) Sample device according to one of the claims" - 2, marked by combining the following features: a) each double-armed lever (3) has two End section en (3a, 3b) verses. ·, Where each End section corresponds to another level line, b) one control lever (7) acts on the first one End section (3a) of the double-armed lever (3) a , c) a mechanically acting device (11} each acts on the second end section (Jb) of the double-armed Lever (3). 4) pattern device, characterized by the following combination of features according to one of "claims. 1-3: is a) for each control lever (J) slightest s \ an electrically / electronically controlled holding magnet (8) is provided which the control lever (7) L ι an I. end position _s BATH ORIGINAL 309807/0650 ι. 2139684 b) each control lever (7) is under the action of a spring force (9) > by means of which it is pivoted into a 2nd end position when the holding magnet (8) is switched off, c) each control lever (7) is controlled individually at periodic intervals by a further mechanical control ('0), which is driven by the rotating cylinder (1). 3Ü98ü7 / Oüb.O Blank page