H. Stoll Gmbh & Co.

Hermann Schmodde

Ernst Goller

Franz Schmid

Gunther Kazmaier

Henning Schmidt

Hans-Gunter Haltenhof

Walter Nedele

By the use of special latch needles (21) whose latch (14) can take up two stable positions lying within the limits of its pivotal movement and out of which it can be moved only against the action of a spring, there is ensured, even in fast running flat knitting machines with a transfer mechanism and with stitch presser and/or stitch hold-down elements, and even during the formation of long, loose stitches and loops, reliable trapping of the yarn and manipulation of the stitches and loops by the knitting elements. (FIG. 2)

Flat knitting machine

A cam system for flat-bed knitting machines has a needle cam unit which has at least one integrated knitting cam loop transferring cam for both knitting and loop transferring directions, of which the knitting cam has adjustable sinker elements on both sides and the loop transferring cam has transfer cam parts with a central lobe, located above the knitting track, for transferring the loops and receiving cam parts associated with them having a central receiving lobe and an oblique face that is operative in a trailing fashion. The cam system also has a depressor apparatus, in which the needles supported in needle tracks of the needle beds are controlled by pressure jacks acting upon needle jacks, the pressure feet of the pressure jacks being movable into different tracks, which are located in the planes of pressure strips. Other than the already present and movable sinker elements for sinking movements, this cam system has no further moving parts nor additional width, is intended to enable more-advantageous and more-reliable loop transfer by proving that lobes for pre-tensing the loops are provided for the transfer cam parts, and the receiving cam parts permit a substantially later retraction of the receiving needles as compared with the transferring needles. To this end, leading ahead of the lobe for transferring the loops there is a lobe for pre-tensing the loops on the associated sinker element, which lobe is operative in the lowered position of the sinker element. The sinker element is embodied and disposed relative to the transfer cam part in such a way that in the leading position, in the lowered position, it defines the projection track for the transfer cam part and in the trailing position, in a position raised to the level of the ridge or in the sinking position, beginning at the lobe for transferring the loops, it completely defines the retractor track section of the transfer track. The trailingly operative oblique face of a fixed cam at a given time of the receiving cam part is disposed at the same level as the receiving lobe and leads at the same level out of the receiving track along a substantially horizontal track, which because of a trailingly operative pressure strip extends to beynd the outer flank of the trailing sinker element.

Cam system for flat-bed knitting machine

The sinkers of both needle beds of a double bed flat knitting machine are pivotable so as to form a complete bridge over the gap between the needle beds. They have a loop-forming edge which is formed, with respect to the direction of take down for the knitted fabric, underneath the projections of the sinkers, which make up the bridge. Holding down of the old stitches in the gap between the needle beds is therefore ensured and a loop equalizing movement can be effected by means of the sinkers.

Double bed flat knitting machine with sinkers located between the needles

A cam system for flat-bed knitting machines is provided with a needle cam unit which has at least one knitting cam and a transfer cam, integrated therein, for both carriage travel and transfer directions. The knitting cam has adjustable needle sinkers and a knitting cam/knitting element that projects the needles for knitting, and the transfer cam has at least one delivery transfer element and an associated receiving transfer element. The needles, which are supported in needle tracks of the needle beds, are controlled by intermediate jacks embodied as pressure elements, the pressure feet of which can be moved along various courses, which are located in the planes of pressure bars. In order to be able to perform combined loop formation and loop transfer in a single cam unit in a single operation, using a single needle, in such a cam system, the knitting cam/knitting element simultaneously embodies the receiving transfer element of the transfer cam. Four different courses or planes of pressure bars are provided; the first of these effects the delivery transfer movement, the second the loop formation and/or loop receiving movement, the third the tuck position, and the fourth the non-working position.

Cam system and method for combined loop formation and transfer in

A single or multi-cam system (11) for flat-bed knitting machines having needle, jack and selector cam units (13, 14 and 16) arranged one beneath the other is described. The needle cam unit (13) features at least one knitting cam and an integrated transfer cam (17, 18) for both carriage traverse and transfer directions. The knitting cam has adjustable, spaced apart, stitch cams (26, 27). The transfer cam has transfer cam parts having a pretensioning higher lobe (48, 49) for pretensioning the loops and a trailing lower lobe (51, 52) for transferring the loops and associated transfer receiving cam parts. With a multi-cam system (11) for flat-bed knitting machines of this type, the combined, respectively integrated knit and transfer cam (17, 18) is made narrower, without the additional cost or effort associated with mechanical drives and/or switching devices being necessary. For this, the transfer cam parts are formed by the respective stitch cam (26, 27), which features the appropriate pretensioning lobe (48, 49). The appropriate trailing transfer lobe (51, 52) is partially formed by the stitch cam (26, 27) and partially by a non-switching type transition piece (31, 32) lying next to the stitch cam and bordering the draw down track.

Single or multi-cam system for flat-bed knitting machines

A flat-bed knitting machine with a plurality of needle beds in each of which an intermediate plate is situated which is displaceable between four operating positions to thereby control the movement of an associated needle. Also located in each needle bed are pairs of selector plates and associated with each needle bed is an electro-magnetic selecting device which controls the location of the selector plates as a function of the knitting pattern relative to a cam track assembly and the intermediate plate associated with the selector plates.

Flat-bed knitting machine having electro-mechanical selection

A single or multi-cam system (11) for flat-bed knitting machines having needle, jack and selector cam units (13, 14 and 16) arranged one beneath the other is described. The needle cam unit (13) features at least one knitting cam and an integrated transfer cam (17, 18) for both carriage traverse and transfer directions. The knitting cam has adjustable, spaced apart, stitch cams (26, 27). The transfer cam has transfer cam parts having a pretensioning higher lobe (48, 49) for pretensioning the loops and a trailing lower lobe (51, 52) for transfering the loops and associated transfer receiving cam parts. With a multi-cam system (11) for flat-bed knitting machines of this type, the combined, respectively integrated knit and transfer cam (17, 18) is made narrower, without the additional cost or effort associated with mechanical drives and/or switching devices being necessary. For this, the transfer cam parts are formed by the respective stitch cam (26, 27), which features the appropriate pretensioning lobe (48, 49). The appropriate trailing transfer lobe (51, 52) is partially formed by the stitch cam (26, 27) and partially by a non-switching type transition piece (31, 32) lying next to the stitch cam and bordering the draw down track.

This invention relates to a knitted fabric spreader device for flat knitting machines which have spiked rotatable rollers (14) disposed beneath the comb gap (12) of the needle beds of the machine. The spiked rollers (14) are mounted over the full length of the needle beds (10, 11) on a common carrier rod (13) concentric with this rod, and the common carrier rod (13) can be moved transversely to the longitudinal direction of the needle beds to provide for clearance of the comb gap (12) of the machine. To cater for this adjustment the carrier rod (13) is held on at least slides adjustable by means of a control cam (27). The rollers (14) are so mounted between eccentric intermediate discs (15) provided with a smooth peripheral edge that spikes (38) of the rollers (14) project radially above the intermediate discs (15) over a part only of the carrier rod (13) to engage the knitted fabric (29) (FIG. 2).

Growing community of inventors

Albstadt, Germany

Hermann Schmodde