Needle motion

Abstract

The invention is a new container for food and for cooking food, entirely or partially made from a plastic film, provided with one opening (B) suited to be closed and hermetically sealed after the introduction of the food to be cooked and comprising at least one valve (L) made from a material having a lower melting point than said plastic film, so that the increase in temperature and pressure inside the container during the cooking of the food causes said valve (L) to open and part of the steam generated inside the container to be discharged.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to a needle motion for a double-bed knitting machine, such as a double-cylinder circular knitting machine, two-needle bed or four-needle bed flat knitting machines, or similar machines, designed in particular for an automated production of seamless knitted outerwear and underwear of the tubular type, for example trousers, panties, leggings, undershirts, T-shirts, pull-overs, and the like, with a possibility of a reversible and a links-links structure of the knitted fabric in the rib-top area. The invention further concerns a knitting machine as well as a knitting needle.DESCRIPTION OF THE PRIOR ART[0002]A highly and fully automated production is an essential requirement for every modern production process. In the case of the products made of the knitted fabric, the field of textile production is, as a rule, characterized by requirements for a large extent of the finishing operations realised by sewing, which is, above al...

AI Technical Summary

Benefits of technology

[0008]According to one aspect the invention provides improvements to the current state of the art by providing a new needle as well as a new needle motion enabling designing of knitting machines for making different types of tubular seamless knitted goods in a links-links or a reversible structure in a fully automated production cycle without any considerable restrictions of the pitch of the knitted fabric. According to some embodiments, the goal of the invention is also to enable a simplification of the constructional arrangement of the knitting machine and to no small extent also improving the cost-effectiveness of the production of the mentioned category of the knitted goods by removing the finishing operations realised by sewing and by reduction of the idle time in the production cycle.

Problems solved by technology

This introduces not only a considerable amount of a manual work on the finished product and an increase in the production costs, but also certain devaluation of the manufacture qualities of the knitted fabric in the seam area.

The main drawback of these knitting machines is that it is necessary, when knitting a tube in a reversible or a links-links structure of the knitted fabric, to establish the purl loop in the first instance on the opposite needle bed and then to transfer it to the needle bed on which the jersey loops of the same course of the knitted fabric are being established.

This leads not only to an inadequate lengthening of the production cycle, but also a constructional complexity which results in that it is possible, on these knitting machines, to make knitted goods in the reversible structure, or eventually in the links-links structure, up to only 9(E) pitch of the knitted fabric, which is, in case of underwear, absolutely insufficient.

For the underwear such as panties, T-shirts, or similar, this is, however, still insufficient.

Moreover, it is obvious that the four-needle bed flat knitting machines are mechanically practically twice as complicated as the two-needle bed flat knitting machines.

As regards the duration of the production cycle, the four-needle bed flat knitting machines are equally unfavourable as the two-needle bed knitting machines, as the time needed for the transfer of the purl loops onto the opposite needles represents an operating delay.

However, the complexity of the flat knitting machines of this category is exceptional.

Another drawback being also a significantly restricted range of the density of the knitted fabric in order to be able to transfer safely the purl loop into the hook for making the jersey loops.

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