KR20210033014A - Circular knitting machine with weft function - Google Patents

Abstract

The present invention relates to a circular knitting machine, which has a needle cylinder 11 rotating about a vertical axis, and a sinker ring 19 rotating with the needle cylinder 11. The needle cylinder 11 is provided with vertically controllable bearded needles 2 with needle hooks that open at the bottom as stitch-forming elements in the region of their outer corners. For each bead needle (2) on the needle cylinder (11), a hold-down sinker (3) supporting stitch formation is retained on the sinker ring (19) so as to be able to slide horizontally in the radial direction. It is inning. Moreover, for each bead needle 2 on the needle cylinder 11, the pressure sinker 4 is radially directed to close the hook tip of the bead needle 2 by pressing the needle tip against the needle shaft. It is retained on the sinker ring 19 to be horizontally slidable. Each of the pressure sinkers 4 is arranged on a sinker ring 19 between two adjacent hold-down sinkers 3. Needle wear can be reduced by means of a circular knitting machine according to the invention; Moreover, it becomes possible to choose between weft and warp knitting as stitch-forming techniques in a single machine.

Description

Circular knitting machine with weft function

The present invention relates to a circular knitting machine with low wear of mechanical parts, in particular to loop-forming elements as well as to a wider range of possible loop-forming techniques.

Conventional circular knitting machines use tongue needles as central loop-forming elements. The cuneiform needles are guided on the rotating needle cylinder and are ejected and retracted (moved up or down) according to their guidance in the locking parts.

When the loops are formed on the knitting system of such a circular knitting machine, the tongue of the tongue that passes through and is ejected upward is first opened by the loop on the needle shaft against the previously formed loop that slides down and thereafter. It is closed again during looping (Kulieren) and retraction of the needle from the loop sliding up along the needle shaft relative to the needle shaft. The opening and closing processes of the cuneiform needle occur through the cuneiform hinge. Due to the frequency of their continuous operation, possibly due to the influence of significant thread tensions, the tongue hinges of the tongue needles and the tongue needles with tongue hinges are naturally susceptible to particularly wear inside the knitting machine.

Failure of the cuneiform hinge leads to inaccurate loop formation and thus errors in the knitted product. Replacement of the affected cuneiform needle requires the knitting machine to be stopped. Due to the large number of tongue-shaped needles in the needle cylinder, this failure can affect the operation of the knitting machine to a significant extent. However, the problems are the relatively high costs of the tongue needles as well as the resulting interruptions in operation, and the manufacture of the tongue needles is expensive due to the required mechanical load capacity.

Therefore, there is a particular interest in the use of simpler and less damaging needle types in knitting machines. A needle type with a simpler structure, in particular without mechanically movable joints, is a tip needle, the hook of the tip needle opening downwards at the top of the needle. The needle hook can be resiliently closed by external pressure towards the needle shaft.

These circular knitting machines working with tip needles are described in documents DE 1 635 878 A and DE 361 135.

When knitting on a circular knitting machine with tip needles, the needle hook must be resiliently closed from the outside by the pressure wheel when the needle is pulled (during looping), so that the needle hook can Do not pick up. Such a pressure wheel is provided outside the needle cylinder, and is preferably provided actively or passively rotating together in order to minimize frictional forces between the passing needle hooks and the pressure wheel. Due to the different diameters of the large needle cylinder and significantly smaller pressure wheel, however, tangential forces acting on the needle may not be completely avoided. Since such a pressure wheel must be provided for each knitting system, there is also a conceivable space requirement for the pressure wheels which particularly limits the possible system density of the needle cylinder circumference, ie the number of knitting systems per inch.

Alternatively, each tip needle of this circular machine is provided with a needle press running parallel to the needle shaft, which presses the needle hook during looping (Kulieren) from the outside and closes the needle hook. However, the presence of a large number of pairs of tip needles and needle presses on the needle cylinder can again lead to problems with wear susceptibility.

Thus, the present invention is based on the problem of creating a circular knitting machine that works with tip needles instead of tongue needles, which is the simplest possible construction, especially for needles than conventional circular knitting machines with tongue needles. Have a lower sensitivity to

This object is solved by the circular knitting machine of the invention as defined in claim 1. Further advantageous embodiments can be found in the dependent claims.

The circular knitting machine according to the invention has a needle cylinder rotating around a vertical axis and a sinker ring rotating with the needle cylinder. The needle cylinder is provided with tip needles with needle hooks that open downward as loop-forming elements, which are controllable, in particular retractable upwards, perpendicular to their outer edge portion, and for each tip needle, support the loop-forming. A peripheral sinker for doing so is kept radially horizontally displaceable on the needle cylinder. Additionally, for each tip needle on the needle cylinder, the press sinker on the sinker ring is kept radially horizontally displaceable to close the hook tip of the tip needle by pressing the needle tip with the needle shaft. The press sinkers are each arranged on a sinker ring between two adjacent surrounding sinkers as space-saving as possible and with as little or as low a gap as possible.

In the circular knitting machine according to the invention, the loops are formed by coordinated vertical or horizontal movements of the needles and corresponding peripheral sinkers for pushing the yarn into the needle shafts. Each peripheral sinker has two horizontal planes in its profile facing a corresponding needle with an intermediate nose projecting towards the needle. The lower of the two support planes serves as the plane on which the knitted product lies, while the upper support plane guides the new thread towards the needle shaft and attaches the new thread to the needle shaft. The vertical distance between the two planes serves to separate the loop head of the old loop on the sinker plane from the new thread at this height, thus creating a safety distance that the needle hook can close when the needle is pulled vertically, Only a new thread enters the needle hook.

Furthermore, the circular knitting machine according to the invention comprises an additional sinker for each needle, ie a press sinker. The press sinker is used to press the needle hook as the needle is pulled and to resiliently tighten the needle hook. The press sinkers rotate with the needles and surrounding sinkers so that when pressing the needle hook, no tangential forces are generated between the press sinker and the needle hook.

The press sinkers are guided together with the surrounding sinkers on a sinker ring that rotates with the needle cylinder. Alternating adjacent surrounding sinkers and press sinkers are as close as possible to each other, ie, they have the lowest possible clearance. If separating bars are provided between the surrounding sinkers to improve their guidance during retraction and retraction, press sinkers can also be mounted on these separating bars. The ejection and retraction of the peripheral sinkers on the one hand and the press sinkers on the other hand are controlled independently of each other.

The external structure of the circular knitting machine according to the invention is a conventional circular knitting machine by the use of tip needles instead of tongue-shaped needles on the one hand and by the additional insertion of press sinkers into the spaces between the surrounding sinkers on the other hand. It is different from their structure. Thus, in particular due to the close arrangement of press sinkers between the surrounding sinkers, for example on their separating bars, the additional space requirement is relatively small. The press sinkers are generally arranged without lateral gaps between two adjacent surrounding sinkers, and due to their simultaneous rotation with the needles, the forces of the tangential to the surrounding sinkers during their radial ejection to the needle tip are applied. Do not apply. Thus, this offsets excessive wear on the needles and on the peripheral sinkers and press sinkers of the circular knitting machine according to the invention.

A further advantage of the circular knitting machine according to the invention is its utility for the production of knitted fabrics according to both the weft and warp knitting principles. In fact, the circular knitting machine can be switched to all of the loop-forming techniques, or at least pre-set. When the needle is in the ejected state, whether a new thread is guided from the peripheral sinker only to the needle shaft, or whether the peripheral sinker is ejected to a position beyond the radial needle position and thereby presents a loop to the thread. Depending on, the loops formed by the machine are produced according to the weft or warp knitting principle. The yarn is held under tension in the needle shaft prior to looping in the case of the upper yarn, whereas in the case of warp knitting, the yarn loops are provided under a lower tension. Also, during the roofing process (“Kulieren”), the thread tension is lower than at the top.

Thus, the circular knitting machine according to the invention can be equipped with a control device for controlling the positioning of individual peripheral sinkers (individual press sinkers or both sinker types). In this way, radial displacements of the peripheral sinkers can be controlled in such a way that the individual loop-forming systems are knitted, with the peripheral sinkers guiding a new thread to the needle shaft before retracting the individual tip needles. The peripheral sinkers can also be controlled to guide the peripheral sinkers radially past the needle shaft, thereby providing a loop so that knitting (warp knitting) is performed in loop-forming systems.

The circular knitting machine can be operated as a warp knitting machine by suitable control of the thread tension on the one hand and the radial retracting movement of its surrounding sinkers on the other hand (suitably fixed adjustment of the locking parts of the surrounding sinkers according to the invention). As a result, the machine according to the invention can also be operated as a circular warp knitting machine). An optional transition between the upper and the warp knitting can be made, for example, by means of adjustable sliders, which respectively move the surrounding sinkers in the radial direction. By suitable adjustment of the sliders and thus the positioning of the peripheral sinkers in the radial direction, the circular knitting machine according to the invention can also simultaneously produce loops according to the wefting process and the warp knitting process on its various systems.

The loop-forming systems of a circular knitting machine according to the present invention, wherein individual tip needles form loops from individual supplied yarn loops according to the wefting principle or warp knitting principle, and are capable of catching the supplied yarn or in a circular motion. It can be pre-adjusted, controlled or switched during operation so that it can be maintained.

During the catching process, the tips of the corresponding loop-forming system are retracted at an earlier time than in the weft or warp knitting process, so that the press sinkers only have individual tips when both the supplied yarn and the previous loop have been received in the hook. Close the hooks of the needles. Alternatively, the catching process can be carried out by moving the press sinkers not very close to the hooks of the individual needles to close the hooks, so that both the supplied thread and the old loop can be received inside the hook.

It turns out that the use of tip needles in a circular knitting machine according to the invention has additional advantages. For example, the needle head of a tip needle is generally smaller than that of a cuneiform needle, so the undesired enlargement of the loops by the needle head is a smaller problem. At the same fineness, smaller loops are possible. Additionally, the loops may be intact by opening and closing the needle tongues and their hinges. Due to the lower strain on the yarn, in flattening, excessive pilling tendency, plush or lining as well as twisting of the yarns during plating (by a smaller needle head). Unfavorable effects such as unequal heights of the handles of the spool are largely avoided.

The use of tip needles also allows an increase in the rotational speed of the needle cylinder, since there is no need to ensure absorption of the kinematic rotational energy of the needle tongues.

The use of elastically lockable tip needles instead of tongue needles that can be closed through their tongue hinges also reduces the knitting energy and thus the overall power consumption of the circular knitting machine.

The cost advantages are primarily due to the lower cost of tip needles compared to cuneiform needles; In addition, the longer needle life of the peak needles is another advantageous cost factor due to their simpler, less brittle construction. If tip needles are used in place of cuneiform needles, it is also advantageous that after cessation of operation, the start of the knitting process is simplified; The cuneiform needles should be checked prior to the start of knitting to see if their tongues are in the correct open or closed state.

In the following, embodiments as well as further advantages and details of the present invention are described with reference to the accompanying drawings.
1A-1H show a sequence of a loop-forming method according to the knitting (top knitting) principle in a circular knitting machine according to the invention (in the enlarged representation of FIG.
2A and 2B show different positions of the loop-forming elements before pulling off the needle during warp knitting and weft knitting with a circular knitting machine according to the invention, respectively.
3A shows the position of the loop elements during the pulling/retraction of the needle during the catching process, while FIG. 3B shows the needle motion curve during the catching process.
Figure 4a shows a perspective close-up view of the corner portion of the needle cylinder with needles as well as the corresponding enclosed sinkers, press sinkers and corresponding sinker locks (in contrast to the circular knitting of Figures 2a and 2b, the sinker lock And sinker lock components are incorporated in this case). 4B shows a detailed view of the upper or warp knitting system of FIG. 4A.
5 shows a cross-sectional view of a sinker ring, peripheral sinkers, and press sinkers supported thereon in a parallel section direction parallel to the tangential direction on the needle cylinder.
Figure 6 shows a variant of a two-piece tip needle that can be used in a circular knitting machine in two views—one drawing has two needle parts separated from each other, and one drawing in a composite state— .

1A-1H, the loop formation according to the (top) knitting principle is shown on the loop-forming system of a circular knitting machine according to the invention. 1A shows a tip needle 2 in an enlarged view in a needle cylinder. By means of suitable guidance of its control foot 6 in the cylinder lock part 14, the needle is ejected and removed in the vertical direction. In Fig. 1A, the needle is in a pulled state. At its hook tip, there is a previously formed “old” loop of knitted fabric that has already been produced. The needle 2 is now ejected upward, while the old loop is held on the plane (lower support plane) 3a of the peripheral sinker 3 and is held back by the nose 3c of the sinker profile. As soon as the needle 2 reaches its highest position, the peripheral sinker 3, which is stored on the sinker ring 19, is guided outward by the control foot 8 in the sinker lock part 10 (drawing To the right) (see Fig. 1B).

In Fig. 1c, the needle 2 now passes through the thread guide 5 on its path of rotation. After that, the enclosed sinker 3 in Fig. 1D extends radially inward in the direction of the needle (to the left in the drawing), and the new thread 1 is supported upward in the direction of the shaft of the ejected needle 2 It is pushed onto the shaft from the peripheral sinker 3 extending above the plane 3b.

Then, the needle 2 is pulled down/retracted in FIG. 1E so that the thread lying on the upper support plane 3b of the peripheral sinker 3 is received in the needle hook. Then, in Fig. 1f, the press sinker 4 is extended inward in the direction of the needle by the appropriate guidance of its control foot 7, so that the press sinker resiliently closes the needle hook by pressure from the outside. . Now in Fig. 1g, the peripheral sinker 3 is pulled back so that its upper support plane 3b dissipates a new thread 1, while the needle 2 is pulled further down at the same time, so that the thread ( The needle hook with 1) is pulled through the old loop still on the plane 3a. Subsequently, in FIG. 1H, the press sinker 4 is retracted and the pulling process of the needle 2 is completed (loop-forming, “Kulierung”), whereby the roofing process is completed and in the position of FIG. 1A You can start over.

2a and 2b show two snapshots of a weft or warp knitting process in a circular knitting machine according to the invention. Fig. 2b shows the position of the loop forming elements in the knitting process just before pulling the needle 2 and thus corresponds approximately to the position of Fig. 1d (the needles and sinkers of the machine of Figs. 2a and 2b are shown in Figs. Slightly different from those of FIGS. 1A-1H). In Fig. 2A, the corresponding snapshot is depicted in the warp knitting process. The peripheral sinker 3 additionally extends inward (to the left in the drawing) compared to the upper part process and thus presents a thread loop that reaches from the needle shaft to the upper support plane 3b. While the yarn is maintained under uniform tension as continuously as possible in the cotton weaving process in Figure 2b in terms of the good quality of the fabricated cotton fabric (e.g., a suitable feeder), the yarn tension is maintained under the warp knitting process of Figure 2a. Can be lower than in and can be changed. The provision of a seal loop by further progression of the surrounding sinker ensures a safe loop-forming process.

In both the context of the warp knitting process of FIG. 2A as well as the upper knitting process of FIG. 2B, in the following steps, the needle hooks are closed by the press sinker 4, the needle 2 is removed, and thus a new one on the needle shaft. The yarn 1 or the provided yarn loop is then received to be pulled through the old loop.

Thus, the circular knitting machine according to the invention is suitable for both weft knitting and warp knitting. In fact, the machine can have an actuator 15 on the sinker lock 9, with the actuator, the sinker lock part 10 can be displaced, whereby the length of the discharge path of the surrounding sinker 3 is for warp knitting. It switches between a longer path and a shorter path for the stomach. The sinker lock 9 is screwed onto the sinker lock support ring 12.

Due to the option of switching between the weft and warp knitting functions, the circular knitting machine according to the invention allows efficient and safe processing of a variety of different yarns. In particular, the warp knitting function allows the use of more sensitive yarns due to the lower yarn tension in the process. In fact, the loop-forming in the warp knitting process according to FIG. 2A takes place in two steps, providing a yarn loop and pulling the provided yarn loop through the old loop. In the first step, the yarn tension in the yarn loop first increases from the friction point to the friction point due to the rope friction principle, and then falls back to zero when the yarn loop is presented. In the second step, when the yarn loop is pulled through the old loop, the yarn section of the yarn loop and the yarn section of the old loop rub against each other, thereby increasing the yarn tension again.

In contrast, during weaving, the transfer of new yarn through the yarn guide and pulling of the yarn through the old loop are performed simultaneously, thereby adding corresponding yarn friction forces and resulting in significantly higher yarn tensions together. This addition of yarn forces does not occur in warp knitting due to the temporary offset of the two processing steps, whereby the maximum generated yarn tensions are lower. Thus, the warp knitting process is more conserved for both the yarn to be processed and the loop-forming elements of the circular knitting machine.

The indication of the seal loop in the warp knitting process also has the advantage that the loop-forming part in the cylinder lock is relieved. The loop-forming angles on the inside are less abrupt than for the stomach piece, which in turn reduces the load on the guided needle in the loop-forming part. By using simpler loop-forming parts, needle foot breaks and needle head breaks can be avoided.

To allow for patterns, the weft or warp knitting systems of a circular knitting machine that can be used for weft and warp knitting can also be adjusted for circular running and catching.

During circular running, the needle 2 is simply held in its circular running position by proper control of the lock parts and is not ejected at all. The new thread 1 is not even received by the needle hook.

3A shows more precisely the position of the knitting system in the catching process during the retraction of the needle 2. After the needle 2 is released just before the needle is enough to accommodate the new thread 1, both the new thread 1 and the old loop are held in the needle hook when retracted.

The catching process can be controlled by needle retraction or by suitable control of the displacement of the press sinker 4. Thus, the earlier retraction of the needle 2 will cause the press sinker 4 to only when the opening of the needle hook has passed through the old loop which already lies on the plane 3a (therefore the old loop is already inside the needle hook). It can be adjusted to close the needle hook.

3B shows the needle motion curves for a side-by-side upset process and a catching process. The dashed line 17 shows the earlier retraction of the tip needle 2 during the catching process, while the solid line 16 indicates the needle movement in the timeline during the upper deflection process.

Another possibility of implementing the catching process with the circular knitting machine according to the invention is that the press sinker 4 on the knitting system selected to close the hook needle does not extend at all, but in its retracted position without pressure contact to the needle hook. It is to keep the press sinker. The corresponding control of the press sinker 4 is made, for example, by suitable adjustment of the sinker locks on the individual systems.

4A shows a perspective view of the needle cylinder 11 from the side (in the variant shown here, the sinker lock 9 and the sinker lock component 10 are integrated). In FIG. 4b a section representing a knitting system with a yarn guide 5 is shown in detail. In both figures, the tip needles 2 arranged in the entire circumferential extent of the needle cylinder 11 are shown only as a partial part of the cylinder circumference for the sake of clarity. The drawings, in particular FIG. 4b, show, in addition to the needles 2, the peripheral sinkers 3, and the press sinkers 4, as well as a thread guide 5 belonging to the knitting area in a selected part of the cylinder edge. Peripheral sinkers 3 extend from the sinker ring 19 from outside to inside between the needles 2 on sinker guides arranged on the needle cylinder. The press sinkers 4 are each arranged between two adjacent peripheral sinkers 3 essentially without any gap (see also Fig. 5) and thus directly face the corresponding tip needle. Tip needles are also arranged between peripheral sinkers extending to the board guides towards the sinker guides, so that the peripheral sinkers serve as guides for both press sinkers and needles.

As shown in Fig. 5, thereby, the press sinkers 4 require some additional space, because even with a conventional circular knitting machine where tongue-shaped needles are used but no press sinkers are used, peripheral sinkers This is because (3) are spaced apart from each other (therefore, when the surrounding sinkers are ejected, the surrounding sinkers can be guided as they pass by the needles). In this conventional knitting machine, separating bars 18 are provided vertically on the sinker ring 19 in the spaces between the peripheral sinkers 3 in order to avoid a gap between the peripheral sinkers 3. Such a machine can be modified into a circular knitting machine according to the invention by arranging the press sinkers 4 on the separating bars 18 with a clearance as small as possible to the adjacent surrounding sinkers 3, rationally. Alternatively, individual peripheral sinkers and press sinkers may also share a channel delimited by corresponding separating bars. However, this would have the disadvantage that the separating bars should be as thin as possible taking into account the high fineness, which would entail an increased risk of breakage of the separating bars.

Peripheral sinkers 3 and press sinker 4, like tip needles 2 with needle feet 6, which run over suitably preset lock channels during rotation, are also It has sinker feet 7 and 8 guided in the corresponding channels, respectively. By appropriately presetting the needle locks and sinker locks, each knitting system can be selectively adjusted so that the loops are formed according to the wefting principle or according to the warp knitting principle, only to catch a new thread or to remain in a circular running state. I can. In Figs. 4A and 4B, the switching between the upper and warp knitting functions is performed by an actuator 15 on the sinker lock with an integrated sinker lock component.

The space-saving arrangement of the press sinkers 4 between the peripheral sinkers 3 allows for a relatively high compactness of the circular knitting machine at the cylinder circumference, ie a large number of needles per inch. Another advantage of this space-saving arrangement is that a high number of knitting systems can also be arranged along the circumference of the needle cylinder. Thus, with a circular knitting machine having a needle cylinder circumference of 30 inches, more than 88 knitting systems can be provided, which corresponds to a high system density of systems of 2.9 per inch (higher system densities of up to 3.2 also Can be considered).

6 illustrates another possible simplification of the use of two-piece tip needles in a circular knitting machine. This two-piece tip needle has an upper tip needle part 2'and a lower control foot part 6'. The tip needle part (2') extends from the needle hook to the nose at the upper end and protrudes laterally along the needle shaft, while the control foot part (6') has a gap-like recess to receive the nose and corresponds to it. It has the contour profile required for receiving and guiding in the cylinder lock part. Thereafter, the needle part 2'is preferably formed by simply forming the wire - while the needle part is bent from the top to the needle hook and from the bottom to the nose - other methods such as perforating the sheet metal part are It can be used for the control foot part 6'. The nose of the needle part 2'and the concave part of the control foot part 6'engage with each other, but are not limited to these shapes except for this adapter function; In particular, the recess in the control foot part need not have a slotted or slit shape.

The use of two-piece tip needles can also lead to additional cost advantages if only the more cost-effective needle parts 2'of the tip needles have to be replaced after wear. Depending on the choice of manufacturing processes for the needle parts, the complete needle equipment of a circular knitting machine can be more cost effective. This division of the needle in two parts, optionally in combination with the selective insertion of the press sinkers 3 between the surrounding sinkers 4, is also a circular knitting machine with a warp knitting function to a conventional circular knitting machine. And vice versa, it allows for a much easier conversion.

Alternatively, the invention can also be applied to circular knitting machines on the basis of the so-called relative technical principle. In these machines, peripheral sinkers are stored in the upper part of the needle cylinder between the needles. Therefore, this machine type does not require a separate sinker ring. Peripheral sinkers can be controlled vertically in height, and at the same time perform a turning motion around their turning point. This orbiting motion replaces the conventional horizontal movement of the surrounding sinker. As pressure elements for closing the needle hooks, pressure wheels arranged outside the circumference of the needle cylinder can be used here (the pressure wheel is for each of the loop-forming systems).

The structure of the circular knitting machine according to the invention is based on a further refinement of conventional circular knitting machines. The circular knitting machine according to the invention can be manufactured as an independent machine; For example, by replacing the tongue needles with tip needles or by replacing the corresponding two-piece tongue needles and the needle parts of the tip needles, as well as by simply adding press sinkers to the gaps already existing between the surrounding sinkers. It is also conceivable to expand the circular knitting machine.

In any case, the present invention provides conceivable advantages regarding the problem of needle wear. In addition, the machine according to the invention allows a choice between weft and warp knitting as loop-forming techniques within a single machine.

1 room
2 needle
2'needle parts
3 peripheral sinkers
3a lower support plane
3b upper support plane
3c the nose of the peripheral sinker profile
4 press sinker
5-room guide
6 needle control foot
6'control foot parts
7 Control foot of the press sinker
8 control foot of the peripheral sinker
9 sinker lock
10 sinker lock parts
11 needle cylinder
12 sinker lock support ring
13 cylinder lock
14 cylinder lock parts
15 Actuators for upper/warm knitting
16 knitting curve
17 catching curve
18 separation bar
19 sinker ring

Claims (14)

As a circular knitting machine,
The circular knitting machine comprises a needle cylinder 11 rotating around a vertical axis and a sinker ring 19 rotating with the needle cylinder,
The needle cylinder has, at its outer edge portion, vertically controllable tip needles 2 with needle hooks open downwards as loop-forming elements,
For each tip needle on the needle cylinder, a surrounding sinker 3 supporting the loop-forming is kept radially movable on the sinker ring,
Additionally, for each tip needle on the needle cylinder, a press sinker 4 is kept radially movable on the sinker ring, thereby releasing the needle hooks of the tip needle by pressing it against the needle shaft. Allowing closure, and
Each of the press sinkers is arranged between two adjacent surrounding sinkers,
Circular knitting machine. The method of claim 1,
The press sinkers 4 on the sinker ring 19 are arranged between the adjacent sinkers 3 on both sides, substantially without gaps,
Circular knitting machine. The method according to claim 1 or 2,
The press sinkers 4 are guided respectively on the sinker ring 19 on separating bars 18 extending between the adjacent sinkers 3,
Circular knitting machine. The method according to any one of claims 1 to 3,
The peripheral sinkers 3 in the side profile of the peripheral sinkers 3 facing the needle 2 are two horizontally with an intermediate nose 3c protruding in the radial direction. Having support planes 3a, 3b,
Circular knitting machine. The method according to any one of claims 1 to 4,
Further comprising a control device for controlling the radial displacement of the individual peripheral sinkers 3 and/or the individual press sinkers 4,
Circular knitting machine. The method of claim 5,
The control device is configured to control the radial displacement of one or more selected peripheral sinkers 3 or all peripheral sinkers to guide a new thread 1 towards the needle shaft before retraction of the individual tip needles 2. Designed so that the tip needle can form loops of weft knitted fabric,
Circular knitting machine. The method of claim 5,
The control device guides a new thread 1 past the needle shaft prior to the retraction of the individual tip needles 2 in the radial direction and accordingly one or more selected peripheral sinkers ( 3) or designed to control the radial displacement of all surrounding sinkers, so that the tip needle can form loops of warp knitted fabric,
Circular knitting machine. The method according to any one of claims 1 to 7,
It further includes several yarn feeders,
Each of the tip needles 2 cooperating in forming a hollow loop for the supplied thread 1 forms a loop-forming system, and
Each loop-forming system can be pre-adjusted so that its tip needles form loops according to the weft or warp principle,
Circular knitting machine. The method of claim 8,
Further comprising a sinker lock 9 for guiding the peripheral sinkers 3 and control feet 7 and 8 of the press sinkers 4,
The sinker lock can be modified so that the loops in the loop-forming systems are formed according to the wefting principle or the warp knitting principle,
Circular knitting machine. The method according to any one of claims 1 to 9,
It further includes several thread feeders,
Each of the tip needles 2 cooperating in forming a hollow loop for the supplied thread 1 forms a loop-forming system, and
Each loop-forming system can be pre-adjusted so that its tip needles form loops and catch the supplied thread or remain in a circular run.
Circular knitting machine. The method according to any one of claims 8 to 10,
Each loop-forming in such a way that the tip needles 2 of the loop-forming system form the loops according to the wefting principle or warp knitting principle and catch the supplied thread 1 or remain in the circular run state. Further comprising a control device for controlling the system,
Circular knitting machine. The method according to any one of claims 8 to 10,
The tip needles 2 of the loop-forming system executing the catching process are retracted earlier than in the loop-forming process, so that the press sinkers 4 are not only used for the previous loop, but also the supplied thread 1 ) Closing the hooks of the individual tip needles only when both are received within the hook,
Circular knitting machine. The method according to any one of claims 8 to 10,
The press sinkers 4 belonging to the tip needles 2 of the loop-forming system performing the catching process are not moved close to the hooks of the individual needles so that the press sinkers close the individual needles. , Both the supplied thread 1 and the previous loop are accommodated in the hook,
Circular knitting machine. The method according to any one of claims 1 to 13,
The tip needle comprises an upper needle component having a nose protruding to the side and a lower control foot component having a recess to receive the nose of the needle component,
Circular knitting machine.

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