CS272128B1 - Method of knitting frame's working elements exciting - Google Patents

Abstract

In the electro-magnetic change system, to select operating components of a knitting machine, at least two successive selection pulses act on each unit, synchronised with the movement of the component in terms of time and space. The successive selection pulses overlap each other at least partially or they interconnect on reception. The pulses generated by the program in the knitter are simultaneously and/or successively to move or block a component to a working condition, determined by the selected movement.

Description

(57) The present invention relates to a method for inducing working elements (e.g., atopy or knitting millet) of a knitting machine, preferably a round small diameter, vicar system by electronically controlled electromagnetic or other converters. Each working element of the knitting machine is subjected to at least two successive magnetic force pulses which are synchronized temporally and spatially with the moving working elements of the knitting machine.

-1 32

* 11 * 12 mesh /. 1

A t CS 272128 Bl

On the outer periphery of the needle cylinder 101 (see FIG. 3), in the space of the knees of the knitting needles 102, lifting and retracting locks are attached to the fixed part of the machine. A pivotably mounted track 103 is associated with a sliding and pivotably mounted intermediate track 104 located in the intermediate cylinder body 105 of the needle cylinder 101. Each intermediate track 104 is associated with a flexible pattern track 105 located in the intermediate intermediate body 105 parallel to the knitting needles 102.

A lifting lock 107 is disposed beneath the resilient pattern track 106 and the resilient pattern track 106 is further associated with a control electromagnetic and / or electromechanical transducer 108 coupled to the control of the knitting machine.

The selection of the working elements, e.g., knitting needles 102, causes an electromagnetic and / or electromechanical transducer 108 which, in the operative state, releases at least two selectable pulses / synchronized temporally and spatially with the moving working elements each of the resilient patterning track 105 from onto the lift lock 107 and thereby one end of the sliding and pivotally mounted intermediate stop 104, the other end of which pushes the lower knee of the pivotally mounted stopper 103. lifts it to the desired position.

During the movement of the working element of the knitting machine along a given selection path 5, see FIG.

1, along the electromagnetic and / or electromechanical transducer, a first selection pulse 1 is transmitted, which causes the operation described above, at point 11 of the path 5 lasting up to point 12. Oakmile the working element reaches a certain and preselected In point 21 of track 5, said transducer transmits a second select pulse 2 / releasing the resilient patterning track 105 from the non-working position, which lasts up to point 22 / located outside the section given in point 11/12. the third or fourth selection pulse 3 or 4, whose action on the operating element ends at point 32 or 42, is similarly selected so that the end point of the next section of the select track 5 is located each outside the path of the previous selection pulse path. This results in overlapping of the action of the selection pulse on the working element of the knitting machine in a given selection path 5. These spatially and temporally moving working elements synchronized with the selection pulses incrementally extend the time and the action distance over a distance greater than the pitch between two adjacent tracks. enable the selection of the working elements even at a very high rotation speed of the needle barrel.

A second variant of the method of developing the working elements consists in that during the movement of the working element of the knitting machine along a given selection path 5 (see FIG. 2) along the electromagnetic and / or electromechanical transducer ! which lasts up to the specified point .62. At this point 62, the first select pulse 6 terminates and the second select pulse 7 / begins at point 71 positionally identical to point 62 of the previous section of the selection path 5. Similarly, at the end of the second select pulse T. pulse Q, at point 81, again positionally identical to point 72 of the previous section of the selection path 5 ', and terminate at point 82. The action of the fourth selection pulse 9 in the path section j defined by points 91/92 / precisely on the action of the previous selection pulse J3.

In both cases, the selection of the working elements of the knitting machine by determining the appropriate number of successive selection pulses achieves reliable development even at a very high speed of the needle cylinder, which was no longer possible with only one selection pulse on the working element.

Claims (3)

OBJECT OF THE INVENTION 1. Method for inducing working elements of a knitting machine by means of electronically controlled electromagnetic and / or electromechanical transducers, along which the movement of CS 272128 B1 The invention relates to a method of developing working elements of a knitting machine. There are a number of ways to generate working elements of a knitting machine, e.g. Most known methods assign to a working element, e.g. a knitting machine stopper, a single selector pulse applied to the spatially determined location of the respective converter at the moment! where the working element of the knitting machine is located in or passes through the space. Methods are known in which an electrical selector pulse is transmitted to a working element of a knitting machine by means of movable, e.g. rotary electromechanical transducers, which in turn convey the transmission of the electrical selector pulse. Another known method is characterized in that each selection pulse is assigned to a plurality of working elements of the knitting machine suitably arranged. A common disadvantage of the known methods of eliciting the working elements of the knitting machine 8 by electronic control is to limit the operating speeds of the knitting machines, especially in circular knitting machines β by fine cutting, where the time of application of said impulses on one working element of the knitting machine is very short. Due to the final weight of the working elements of the knitting machine, there is so little mechanical movement that no selection is sufficient. In the methods, ^one using mobile, especially rotary converters, the main disadvantage is the need for very high speed of these converters without improvement in resolution with high demands on energy consumption and production of the entire plant. Realization of methods using a large number of converters for each working element or group of working elements of the knitting machine is very expensive to manufacture, mechanically and electronically complicated with low operational reliability and high adjustment requirements. SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of inducing working elements of a knitting machine which obviates the described disadvantages of known methods, in particular by limiting the operating speeds of knitting machines in an easy implementation of the method. Around the invention, the method of developing the working elements of the knitting machine according to the invention is accomplished, the principle being that each working element is subjected to at least two successive selection pulses synchronized temporally and spatially with the moving working elements of the knitting machine. The main advantage of this method is that the successive selection pulses move in space together with the working element of the knitting machine and thereby extend the time of action of the electromagnetic transducer and hence the path required to reliably select the working element of the knitting machine. A further advantage is that the space acting on the working element is not limited by the geometric distance of the working elements of the knitting 9-machine. By appropriately shaping the length of the selection pulse, it is possible to achieve a continuous or gradual displacement of the effect of the electro-magnetic and / or electromechanical transducer on the working element of the knitting machine, in accordance with its movement. Another significant advantage is the possibility of substantial simplification of the mechanical design of the knitting machine, Further advantages and features of the method according to the invention result from its description and drawing, wherein FIG. 1 indicates a sequence of select pulses partially overlapping; FIG. 2 shows a sequence of select pulses consecutively connected; FIG. 3 shows the arrangement of working elements and electromagnetic transducers war. and The method of electing working elements of a knitting machine, circular or flat knitting machine, by means of electronically controlled electromagnetic and / or electromechanical transducers along which the working elements of the knitting machine are moved, is carried out, for example, on a knitting machine equipped with a needle cylinder. consisting of two-knee knitting needles and pendulum stitches mounted underneath. The working elements of the knitting machine which are brought into the desired position by them are characterized in that each working element is subjected to at least two consecutive selection pulses synchronized temporally and spatially with the moving working elements of the knitting machine. 2. The method of claim 1, wherein the successive selection pulses overlap each other at least partially. 3. The method of claim 1, wherein ^: that after 3 consecutive voting pulses follow one another.