DE3148832A1 - "DEVICE FOR CONTROLLING HIT BOARD ON CIRCULAR KNITTING MACHINES" - Google Patents

Description

. DR. WALTHER JUNIUS. 3 Hanover

WOLFSTR.ASSE 24 TELEPHONE (05 ti) 83 45 30

December 7, 1981 Dr. Y / Y

My file: 2649

ELITEX concerts textilniho strojirenstvi, L i b e r e c (Czechoslovakia)

Device for controlling sinkers on rounds printing machines

The present invention relates to a device for controlling sinkers on circular knitting machines, in especially for the production of hosiery, etc., which is provided with a stitch sealing device which is based on the Base of the vertical thrust of the sinker ring for the position tion and control of the sinkers works.

Hosiery knitting machines are known on which the stitches by vertical movement of the needle as well as by the radially movable sinker mounted in the sinker ring, are formed, which are stored in the needle cylinder. It is known that such a movement is used to form the stitch the sinker is necessary to tighten the stitch properly and a needle prick into the stitch the previous row to avoid. Likewise, in the phase in which the needle begins the needle movement, the

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Tee plate tighten the mesh sufficiently so that the The needle arch of the stitch with its volume under the needle tongue can get. In the opposite case, the end of the tongue can pierce the stitch and make a fault in the knitted fabric or the stitch will not fall off the tongue at all. These machines become immobile Locks for controlling the sinkers used, the disadvantage of which is based on the constant reduction.

In other known types of hosiery knitting machines, freely mounted locks that are pressed by a spring are used applied. This solution is also not optimal for the desired elasticity, since the centrifugal forces of the sinkers are reduced make noticeable, which is particularly noticeable in high-speed machines.

There is also known a hosiery knitting machine in which the change in stitch density by vertical displacement the ball locks is reached by means of a Lever gear are connected to the sinker locks. This solution ensures the desired effect in the difference in elasticity, is, however, more demanding in terms of setting the stitch density, since there is a possibility that between the transmission elements play can occur. Furthermore, this solution cannot be used on machines where the Stitch density are controlled by changing the needle cylinder or the sinker ring.

The invention avoids these disadvantages. It is the object of the present invention with a simple construction a possibility of the desired elasticity difference for tendons 11 on en de machines with control of the stitch density

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to create by shifting the sinker ring.

The invention consists in that the machine in the knitting systems mechanical lever mechanism between the vertically movable sinker ring and the movably mounted ones Sink locks, which are stored in the sinker ring, contains, for the purpose of simultaneous change the position of the sinker locks when the sinker ring is shifted.

The essence of the invention is shown below with reference to an embodiment shown schematically in the drawing the invention explained in more detail. The drawing shows an axial section through the needle cylinder and the sinker ring with a representation of the lever mechanism.

In the longitudinal grooves 2 of a needle cylinder 1 of a single-cylinder multi-system hosiery knitting machine the needles 3 and other sinkers, not shown, are stored. The needle cylinder 1 is assigned a Schloßraantel 4, in which for the individual knitting systems, ball locks 5 and counter locks 6 and other known, not shown locks for controlling the needles and sinkers are attached. on the upper end of the needle cylinder 1 is fixedly arranged with a grooved ring 7, displaceable in its radial grooves the sinkers 8 are stored. On the with Grooved ring 7 is a non-rotatable circular Lid 9 stored for storage of the sinker locks. In each knitting system are except for the known, not shown Fixed sinker locks also arranged radially displaceable sinker locks Io. The grooved one Ring 7 and the circular cover 9 form a sinker ring 11, which vertically together with the needle cylinder 1

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is slidable. The sinker ring 11 is assigned an angle lever 12 in each knitting system, which can be swiveled out on the The machine frame 13 is mounted and is cushioned with respect to this by the tension spring 14. On the horizontally arranged An adjusting screw 12 is attached to the arm of the angle lever 12, which on the top of the sinker ring 11 or the circular Cover 9 comes to sit and is pressed against this by means of the tension spring 14. The vertically arranged Arm of the angle lever 12 runs through an opening in the radial slidable sinker lock Io through it.

This arrangement works as follows:

When changing the stitch density of the knitted fabric, in particular in a dilution of the needle cylinder 1 is lifted upwardly from the mesh density device, together with the platinum ring 11. By this displacement of the Kulierschlösser be extended 5 of formed Henkel at constant setting. This vertical movement is caused by the influence of the sinker ring 11 on the adjusting screw 12 'or; the corresponding arm of the angle lever 12 transferred, which is also raised. The second arm of the angle lever 12 then moves the radially displaceable sinker locks Io in the direction of the center of the needle cylinder 1. By shifting the radially movable sinker locks Io, the reduction of the sinkers 8 is increased and thus the culverted sinker loops are lengthened. The exact setting of the discount is secured by the adjusting screw 12 *.

When the machine functions in the opposite direction, i.e. when the knitted fabric is compacted, the needle cylinder 1 or the sinker ring 11 down, and the change in the radial position the radially movable locks Io then leads

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the tension spring 14, which acts on the angle lever 12. The aforementioned locks then move into Direction from the needle cylinder 1.

The device of the present invention can be structurally modified in various ways. For example, can the sinker locks can be swiveled out with the angle lever be articulated. Next, the angle lever or the lever constructed in another way can be attached to the underside of the The sinker ring with the spring acting on the other end of the lever, etc.

Claims (3)

3H8832 -ß - Patent claims: ! .Device for controlling sinkers on a circular knitting machine, in particular hosiery knitting machine, etc., which is provided with a stitch sealing device which works due to the vertical advance of the sinker ring to support and control the sinkers,
characterized, that in the knitting systems mechanical lever gears between the vertically moving sinker ring (11) and the movably mounted sinker locks (lo) in the sinker ring (11) are stored, are included, in order to simultaneously change the position of the sinker locks when moving the sinker ring (11). 2. Device according to claim 1,
characterized, that on the upper side of the sinker ring (11) the end of the horizontally arranged arm of the angle lever (12) comes to sit, which can be swiveled out on the machine frame (13) is mounted, the vertically arranged arm of the angle lever (12) on the radially displaceable sinker lock (lo) acts and is cushioned with regard to the machine frame (13) by means of a spring (14). 3. Device according to claim 1 and 2, characterized in that that on the horizontally arranged end of the bell crank (12) an adjusting screw (12 ') seated on the sinker ring (11) is arranged. - 7 -