TWI504793B - Knitting machine for the production of patterned knitted fabrics and needle bed therefor - Google Patents

Description

Knitting machine for making pattern knitted fabric and needle holder thereof

The present invention is directed to a knitting machine as defined in the preamble of claim 1 and a needle holder as defined in the preamble of claim 16.

A knitting machine type which can be constructed to form a round or flat knitting machine has a needle holder which is constructed to constitute a knitting needle cylinder, a knitting needle disc, a flat needle board or the like and is provided with a plurality of grooves. A knitting tool provided with a butt and constructed as a latch or a composite needle is movably mounted in the grooves. The manufacture of the knitted fabric having the pattern is achieved by the stitching of the knitting tool in at least one working zone, wherein the at least one working zone is selectively distributed in at least two paths predefined by the cam path of a cam On a path. One of these paths directs the knit tool to a position intended to receive a yarn, a fiber bundle or the like, while the other path is commonly referred to as no-knit or punch-through (run- The path is such that the knitting tool guided by the path is taken up in the various work areas for any yarn or the like (two-way technology). These configurations are primarily suitable for products with color patterns. However, if a structural pattern is also required or only required, the cam provides a third path that directs the selected knitting tool for this purpose into a tuck position (three-way technique).

In order to distribute the knitting tools in different paths depending on the pattern, patterns or selection means are used, which have various variations and are used to act on the knitting tools or jack selectors, sinkers, controls Springs, bends or the like, individually associated with the knit tools, and disposed within the knit tool itself or within the same groove of the hub, and they can be mechanically, pneumatically Ground, electrically, magnetically or electromagnetically moving elements are individually or continuously moved into one of two or three positions for guiding the associated knitting tool into two or three paths In one of the paths (for example, German Patent No. DE 1 585 243 A1, DE-PS 1 173 609, DE 2 115 332 C3, DE 2 246 632 A1, DE 37 12 673 C1, DE 1 635 844 C3, EP 0 319 007 B1).

Since each of the selection steps for the knitting tool must take place in a very short time of 0.5 milliseconds to 1.0 milliseconds in a high-power knitting machine, it is necessary to control the settling of the knitting tools arranged adjacent to each other. Pins of different heights are provided on the sheet or the like and a control element in the form of a individually controllable selection of the control elements is provided at each of these different heights (for example, German Patent DE 2117713 C3). Therefore, the length of time available for each selection step can be increased and the selection procedure can be implemented more reliably.

An unresolved problem associated with the selection of knitting tools in accordance with the pattern is that when using a knitting machine having a small gauge or high fineness. The spindle pitch is understood to be the average spacing between two adjacent knitting tools, and the fineness refers to the number of stitches in each inch of the area adjacent to each other within the hub. Thus, for example, the fineness of the E60 means that 60 needles or 5,655 knitting tools are arranged in each inch to be placed on the periphery of a 30 inch diameter knitting cylinder, which produces a spindle pitch of 0.4 mm. . At the denier of E30, the thickness of a web or knitting tool is only about 0.2 mm instead of 0.4 mm or more in this example. The selection of such tiny knit tools can be implemented at relatively low machine speeds and/or with purely mechanically operated selection mechanisms. However, if the length of each selection step is only 0.2 milliseconds to 0.5 milliseconds at high machine speeds, a definitive choice is to set the stitches of different heights on the knitting tool, the control sinker or the like (eg, The above example can only be achieved. However, this is not desirable because it requires complex machine construction.

However, the result of the fashion trend is that manufacturers of knitted articles not only have an increasing demand for knitting machines with deniers up to E60, but also have an increasing demand for these high-density selection mechanisms. For a specific reason, so far only a relatively expensive and/or slow-working knitting machine has been used to achieve this.

Knitting machines that use only cam members to control the knitting tool and that do not have a pattern or selection device are conventional. Knitting tool control is achieved by the entry into the cam area (e.g., German Patent No. DP-PS535173). In particular, in this patent, a cam having a plurality of cam tracks is conventionally known, and the stitches of a knitting tool are guided into a separate cam track. Depending on the height at which the stitches are arranged on the knitting tools, each of the knitting tools is associated with a selected cam track. For example, it is conventional to distribute the stitching of a knitting tool in a single configuration or a dual configuration at a number of heights using a commonly known oblique or diagonal insert (e.g., at ITB Strickerei/-Wirkerei/Strickerei/Konfektion 1976, vol 2 pages 55-60 described in "Large plain circular knitting machine-patterning possibilities (Part I)"). However, the configuration of this type of cam member can only produce a relatively small pattern, and can be changed only by replacing or switching the cam member. Since each individual knitting tool cannot be individually selected, it is not possible to produce a freely selectable pattern in this way, which has so far only been achieved using the aforementioned patterning device.

In view of the foregoing prior art, the technical problem underlying the present invention is to provide a knitting machine and a hub of the type described above, whereby the knitting machine and the hub are knitted articles having any desired freely selected pattern. When a high denier is desired, it can be manufactured without substantial increase in construction and cost.

This problem can be solved by the present invention because the patterning device is constructed in each selection step in which at least two knitting tools adjacent to each other are simultaneously selected and guided into at least two in the same manner. In the same path in the path.

The present invention begins with experimentally proven knowledge, for example, in a knitted article made with a high denier of E50 or E60, the pattern that is different between each stitch is understood in a manner similar to that of E30 or lower. The way in which the denier is manufactured is not the same. Thus, if, according to the invention, two or more directly adjacent knitting tools are simultaneously selected in the same manner in each selection step, the substantial benefit is that the time available for each selection step The length can thus be increased and the choice of knitting tool can be made with the same structural members as the structural members used on low-denier knitting tools to date. Therefore, the patterning of knitted fabrics having a high denier does not result in an increase in manufacturing and cost, or at least not greatly. It is visually difficult to detect that the pattern can only be changed after every two stitches or more.

The invention will hereinafter be described in detail with reference to a circular knitting machine having a rotatable knitting needle cylinder having a diameter of 30 inches. For ease of understanding, the structure and mode of operation of a conventional circular knitting machine are first described, followed by a representative of the main components of a circular knitting machine constructed in accordance with the invention.

Figure 1 shows a circular knitting machine having a needle holder 1 in the form of a conventional knitting cylinder which is fixed to a support ring 2. This is rotatably mounted in a machine frame (not shown) and is provided with an external gear rim 3 that is coupled to a drive gear (not shown) that can be driven by a drive motor. A cam is fixed to a cam plate 4 which is fixedly mounted on the machine frame (not shown), the cam having a cam support member 5 which surrounds the needle holder 1 and has a plurality of inner sides thereof Cam segments, which are arranged one after the other in the direction of the circumference of the hub 1 and form a working area or knitting system. Figure 2 shows this cam segment 5a in a view from the inside.

The hub 1 has a plurality of grooves formed by webs 6 which are arranged parallel to the axis of rotation of the hub 1 or the needle cylinder and which receive the knitting tool 7 which is constructed to form a general needle woven fabric. needle. A selector 8 is disposed under each knitting tool 7 and within the same groove of the hub 1. In the exemplary embodiment, the knitting tools 7 are disposed in grooves that are movable parallel to the axis of rotation, and the selectors 8 are mounted to be movable parallel to the axis of rotation and radially The ground is pivoted inside the groove.

Knitting tool 7 and selector 8 have stitches 7a and 8a for their respective draw-down, respectively, which have pull-down members for the associated cams described below. The selectors 8 are additionally provided with pretensioned springs 9 that are fixed to them or made integral with them for pretensioning them in the radial direction.

As shown in Figure 2, each cam segment 5a (which represents the working area or knitting system of the circular knitting machine) has an associated selection mechanism 10 for use in a system different from a pure cam control system. When the relative movement between the needle holder 1 and the cam support 5 is effected, the knitting tools 7 are selectively operated through different paths, in particular a knitting, hanging needle or no-knit or punch-through ( Run-through) path. The selection mechanism 10, together with the selectors 8, forms a conventional patterning device, and a knitted article having a color and/or a woven pattern can be manufactured using the patterning device. In the exemplary embodiment, the patterning device is used to implement a 3-way technique.

As shown in FIGS. 1 and 2, the selectors 8 include a dual-arm lever having a first lever arm 11 and a second lever arm 12. A filleted support point 14 is provided between the lever arms 11 and 12, which are supported by the support point on the bottom 15 of the groove of the hub 1 (Fig. 1). In this example, the configuration in the exemplary embodiment is such that the first lever arm 11 is provided with a radially outwardly facing anchor face 16 (Fig. 2) with the pin 8a at a level approximately equal to the support point 14 and The second lever arm 12 has two pins 17 and 18 which are convexly arranged one above the other and which are radially outwards similarly to the pins 8a. Further, at the upper end of the selector 8, a face constructed to support the stitch 19 is preferably provided, which cooperates with the knitting tool 7 located above. The pretensioned spring 9 is disposed on the rear side of the selector 15 facing the bottom 15 of the associated groove such that when the pretensioned spring is substantially relaxed, the selector 8 is wound around The support point 14 pivots such that its first lever arm 11 abuts the bottom 15 of the associated groove and the anchor face 16 is withdrawn into the groove, while at the same time the second lever arm 12 The pretensioned spring 9 is pretensioned radially outwardly, the pretensioned spring 9 being supported against the bottom 15 of the groove such that the raised pins 17, 18 protrude radially outward from the groove . However, if the pretensioned spring 9 is in the tensioned state as shown in FIG. 1, the first lever arm 11 is pivoted outward and the second lever arm 12 is pivoted inwardly, such that The jaw face 16 projects radially outward from the groove and the raised pins 17, 18 are retracted into the groove.

According to FIG. 2, the two cam portions 20, 21 are associated with the stitches 7a of the knitting tool 7 in each cam region 5a, which are arranged one above the other and leave a recess 22 between them, which A cam portion 23 is provided in the central portion of the recess. The selection mechanisms 10 arranged at the entrance of each cam segment 5a are respectively disposed in an area under the cam portion 21. In this example, "inlet" should be understood to mean that each of the cam segments 5a is first knitted by the knitting tool 7 and when the knitting tool 7 and the selector 8 are moved relative to the cam in the phase shown by the arrow v (Fig. 2). The beginning of contact with the device 8. Further, the cam segment 5a under the selection mechanism 10 has a cam portion 24 which is associated with the stitch 8a of the selector 8 and which is provided with a recess 25 and a separate cam portion 26 in the same manner as the cam portions 20, 21. . Finally, a cam portion 27 associated with the stitches 17, 18 of the selector 8 and defining a knitting cam 28 and a tug cam 29, respectively, appears underneath the cam portion 24. The knit cam 28 is used to cooperate with the raised stitches 17 and lift the stitches 17 to a height corresponding to a knit position. Conversely, the hang-up cam 29 is used to cooperate with the raised stitches and lift the stitches 18 to a height corresponding to a hang-up position.

In order to ensure that the same selector 8 pivoting position is obtained at the entrance of the cam segment 5a, a pressure portion 30 (only visible in Fig. 1) is provided in front of the entrance of each cam segment 5a, respectively, and this pressure The portion 30 acts inwardly on the raised stitch 18 from the outside and pivots all passing selectors 8 to a position in which the lower lever arm 12 is pivoted back into the groove of the hub 1 Inside the slot (Figure 1).

According to Fig. 2, in this exemplary embodiment, the selection mechanism 10 includes two control magnets 31, 32 which are arranged in the running direction (arrow v) of the knitting tool 7 and the selector 8 to be magnetized one upon another. A magnet and a holding magnet 33 are disposed between the two control magnets 31, 32 and connect their pole faces to a flat joint.

The operation method of the circular knitting machine described above is substantially as follows: when a selector 8 runs into the cam segment 5a, it first enters the active area of the pressing cam 30, and the pressing cam is according to FIG. Pressing on the raised pin 18 causes the selector to pivot radially into the associated groove of the hub 1 and at the same time the anchor face 16 is pressed against the magnet arrangement of the selection mechanism 10 (see figure) 1).

If the control magnet 31 is controlled such that it does not attract the anchoring surface 16, but releases the selector 8, the selector will pivot about the bearing point 14 under the influence of the pretensioning spring 9, so that it is attached The pins 17, 18 on the second lever arm 12 are moved radially outward and radially away from the groove of the hub 1. When moving further in the direction indicated by the arrow v, they will enter the active area of the knitting cam 28. Therefore, the raised stitch 17 runs onto the cam portion forming the knitting cam 28 such that the associated selector 8 is lifted perpendicular to the arrow v and parallel to the axis of rotation of the hub 1 (arrow w of Fig. 2) ). The knitting cam 28 is constructed to be of sufficient length in the direction of the head v such that the support stitch 19 of the selected selector 8 abuts the lower end of the associated knitting tool 7 and its stitch 7a is raised to the separate cam Above section 23. These knitting tools 7 are thus additionally raised into the highest position corresponding to the knitting position and passed through a knitting path. This is shown in Figure 2 by the position of the stitches represented by the thick black rectangular blocks.

However, if the first control magnet 31 is controlled such that it continues to attract the anchoring surface 16, the anchoring surface is transferred to the underlying holding magnet 33 such that the associated selector 8 remains in the pivoting position (see figure). 1) and moved to the second control magnet 32 at this pivot position.

If at this point the second control magnet 32 is controlled such that it does not attract the anchor surface 16, but releases the selector 8, the selector will be around the support point under the influence of the pretensioning spring 9. The pivoting 14 causes the stitches 17, 18 attached to the second lever arm 12 to be moved radially outward. However, since the raised stitch 17 just passes through the raised portion of the knitting cam 28 in this position, the raised stitch 17 rests on the inner face of the cam portion 27 facing it without The knitting cam 28 is reached. Conversely, as it advances further, the raised stitch 18 of the selector 8 enters the active area of the hook cam 29, which lifts the raised stitch 18 to a position comparable to the position of the hook. The height causes the support stitches 19 of the respective selectors 8 to lift the associated knitting tool 7 into a hooking path 29a.

However, if the second control magnet 32 is controlled such that it continues to attract the anchoring surface 16, the anchoring surface will be transferred to the underlying holding magnet 34 such that the associated selector 8 remains in the pivoting position (see figure). 1) and moved through the hook cam 29 without being lifted by it. The stitch 7a of the associated knitting tool 7 then passes through a through path 35 below the separate cam portion 23.

After the sorting of the knitting tools 7 into the knitting, hanging or non-knitting or punching paths 28a, 29a and 35, all of the selectors 8 are withdrawn by the pull-down cam 36 on an active stitch 8a and all the knitting The tool 7 is pulled down to the starting position shown in Figure 1 by a pull down cam 37 acting on its stitch 7a so that a new selection process can be initiated in a subsequent cam segment or system.

A circular knitting machine and a patterning device of this type, and further details thereof, are available, for example, from the published German publication No. DE 103 21 737 A1, the disclosure of which is incorporated herein by reference.

Figures 3 and 4 show schematically the major changes in the area of a hub and a patterning device of a circular knitting machine in accordance with an exemplary embodiment of the present invention which is presently preferred. As can be seen from Figure 3, a circular knitting machine in accordance with the present invention includes a hub 40 (as in the form of a needle cylinder) having two sections 40a and 40b on a central axis 41. The direction is set to one segment above the other segment. A plurality of radially projecting first webs 42 (which are disposed parallel to the central axis 41 and having a first groove 43 interposed therebetween) are constructed at the periphery of the section 40a. A plurality of radially projecting second webs 44 (which are disposed parallel to the central axis 41 and having a second groove 45 interposed therebetween) are constructed at the periphery of the section 40b. A void or free space 46 having no webs 42 and 44 and preferably extending along the periphery of the entire needle cylinder is disposed between the segments 40a and 40b.

The first groove is for receiving a knitting tool 7 (shown in Figure 4) which is a general needle of the needle shown in Figures 1 and 2 and has a stitch 7a. In another aspect, the second groove 45 is for accepting the selector 8, which in the exemplary embodiment is constructed identically to the selector 8 shown in Figures 1 and 2. Therefore, the same reference numerals are used for the knitting tool 7 and the selector 8 of Figs.

However, the main difference between the present invention and the conventional circular knitting machine shown in Figures 1 and 2 is that the selectors 8 are constructed and arranged to have a fineness which is preferably half the fineness of the knitting tool 7 and The second grooves 45 are constructed to have a width which corresponds approximately to the sum of the widths of the two first grooves 43 and one of the first webs 42. For example, if the knitting tool 7 has the fineness of E60, the selector 8 is given the fineness of E30. If the knitting tool 7 has a denier of E50, the selector 8 will be constructed and arranged to have a denier of E25. Furthermore, the first and second webs 42, 44 and the first and second gullies 43, 45 are associated with each other such that the two first grooves 43 and one of the first webs 42 are disposed. Above a second trench 45, as shown in Figures 3 and 4. This means that after the knitting tool 7 and the selector 8 (which have a thickness corresponding to the width of the grooves 43 and 45) are inserted, the two associated knitting tools 7 (e.g., 7x, 7y) are placed in a corresponding selection. Above (for example, 8x), as shown in Figure 4. Also, on the other hand, in this configuration, the lower end of the knitting tool 7 protrudes into the free space 46, and on the other hand, during the ascent of each selector 8, two of the needle holders 40 are directly adjacent to each other. The lower ends of the knitting tools (e.g., 7x and 7y) are simultaneously docked on the upper end of the associated selector 8x, which is preferably constructed as a support pin 19 as shown in FIG.

It must be additionally ensured that the support point formed by the top surface of the support stitch 19 between the knitting tools 7x, 7y and the selector 8x is placed in the absence of webs 42, 44 and other obstacles. The free space 46 of the object is very close below. This allows the upper end of the thicker selector 8 to be displaced upwardly beyond the upper end of the second groove 45 for docking in pairs at the lower end of the associated thinner knitting tool (e.g., 7x, 7y), and then Further moving upwards for the needle knitting tool 7 lifts the knitting tools 7 in the same manner as described in Fig. 2 and moves them into the hook path 29a or the knitting path 28a. Without this free space 46, this exemplary embodiment would not be able to place the selector against the lower end of the knitting tool 7 during the ascending motion of the selector 8, as such a selector would hit the first web 42.

According to another exemplary embodiment of the invention illustrated in Figure 5, the dual selection described is achieved by a first web 42 (e.g., 42r, 42s) spaced apart by a web, the first web being Its lower end facing the second web 44 extends halfway in the axial direction as far as the lower section 40b of the hub 40, thus bridging the free space 46 shown in Figures 3 and 4. Conversely, the length of the first web (e.g., 42t, 42u) positioned between the first webs remains unchanged, such that a free space 46a is formed on the elongated first web (e.g., 42r, 42s), and the free space 46a extends from the upper end of the second web 44 to the lower end of the unextended first web (eg, 42t, 42u), like the free space 46 of FIG. It is therefore between the two sections 40a, 40b of the hub 40. The free space 46 shown in Figures 3 and 4 is divided in this embodiment into a plurality of laterally substantially free spaces 46a. Each of the free spaces 46a has a width that substantially corresponds to a space between the two second webs 44 or between two elongated first webs (eg, 42r, 42s). space. Also, the upper ends of the selector 8 are constructed such that they can be embedded in the free space 46a between the lower ends of the extended first webs 42. Overall, the self-contained space 46a is sized in the axial direction to be sufficient to allow the selector 8 to perform its maximum stroke, guiding the knitting tool into the knitting position unobstructed.

Otherwise, the configurations shown in Figures 3 through 5 are preferably the same as those shown in Figure 2. This can be clearly seen by the thickness of the stitches 17, 18 of the selector 8 shown in Fig. 2 being twice the thickness of the stitch 7a of the knitting tool 7. Again, the different positions of the stitches 7a of the knitting tool 7 show that their choices are always made in pairs and simultaneously on the directly adjacent knitting tool 7. For example, two pairs of pins 7ai, 7aj and 7ak, 7al correspond to selectors 8 having raised pins 17i or 17k, i.e., a selector 8 having pins 17i or 17k will have pins 7ai, 7aj and 7ak, 7al, respectively. The two knitting tools 7 are lifted into the knitting path 28a. On the other hand, a selector 8 having stitches 17m or 17o (which is lifted by the selection mechanism 10 in a through path) will allow knitting associated with them with pairs of stitches 7am, 7an or 7a, 7ap The tool 7 also passes through the non-knit path 35. Finally, a selector 8 having a stitch 8r shows that the two associated knitting tools 7 having the stitches 7ar, 7a are simultaneously moved into the hook path 29a.

FIG. 6 shows an exemplary embodiment that substantially corresponds to the exemplary embodiments of FIGS. 3 and 4. However, contrary to the embodiment of Figures 3 and 4, the knitting tool 48 has a first section 48a and a second section 48b that are connected to each other through a transition zone 48c provided in the free space 46. The first section 48a is disposed within the groove 43 formed by the first web 42 of the hub 40. The transition zone 48c includes sections that are formed by the bend zones of the shank of the knitting tool 48 and that are used to arrange the lower ends 48d of the knitting tool 48 in pairs against each other by the knitting tool 48 from the first web. 42 pre-defined general gauge (tuge) t1 is closer. The reduction in the distance of the lower end 48b allows the selected thickness of the second web 44 in the lower section 40b of the hub 40 to be slightly larger and the surface of the knitting tool 48 that is constructed on the lower end 48d to be lifted. There is no risk during operation that the entire surface is not placed on the upper surface of the selector 8. As with the exemplary embodiment of Figures 3 to 5, the knitting tool 48 is arranged to have a pitch t1 which is about half of the spindle pitch t2 of the selector.

The exemplary embodiment of FIG. 7 (the same portions as those of FIG. 6 are labeled with the same reference numerals) differs from the embodiment of FIG. 6 in that the selector 8 is completely disposed in the groove formed by the second web 44. 45 inside. In order to permit such a design, although the transition zone 48c of the knitting tool 48 is still arranged in the free space 46, the second section 48b of the knitting tool 48 is elongated in the direction of the section 40b of the hub 40 such that they Projecting into the second groove 45 formed by the second web 44 and abutting against the upper end surface of the selector 8 in these grooves. This may provide the benefit that during the entire lifting and pull-down movement of the knitting tool 48, the lower section 48b is directed into the groove 45, as shown by the selector 8z in Figure 7, which has been The state of ascension. Therefore, if a stronger vibration occurs during the operation of the knitting machine, the lower end 48d of the knitting tool 48 does not accidentally slip off the upper end surface of the selector 8.

Another exemplary embodiment of the present invention is shown in FIG. This embodiment differs from the embodiment of Figure 7 in only two respects.

First, each knit tool 48 is only long enough for its lower end region to be disposed all the way in the first groove 43. On the other hand, the portion including the second section 48b and the transition zone 48c in Fig. 7 is constructed as a separate intermediate pusher (auxiliary pusher) 50 having a transition zone 50a that is bent in pairs toward each other. The intermediate pusher 50 has a length sufficient for the upper end 50b to project into the first groove 43 and its lower end project into the second groove 45. The width of the second groove is preferably only wider than the width of the end 50c. It's twice as big. The intermediate pusher 50 is disposed along the schematically shown contact surface 51 or 52 such that one end thereof is in contact with the lower edge of the knitting tool 48 and the other end is in contact with the upper edge of the selector 8 such that they transmit motion to the knitting tool 48 ( Or vice versa).

Secondly, in a manner similar to that of Figure 5, the first web (e.g., 42r, 42s) separated by a web is extended into section 40b of the hub 40. In this example, the configuration is selected such that the lower end region of the knitting tool 48 is disposed within the first groove 43 during its entire stroke, the downward axial length of which is defined by the unexpanded web (eg, , 42t, 42u) to decide, and the selector 8 is placed in the second groove during its entire stroke. Also, during different strokes of motion, the intermediate pusher 50 is moved such that its transition zone 50a remains in the free space 46a so as not to strike the first web 42 (e.g., 42t, 42u) that is not extended. However, the upper end 50b and the lower end 50c of the intermediate pusher 50 are permanently guided into the first groove 43 or the second groove 45.

Finally, Figure 8 shows that the transition zone 50a of the pusher selector 50 can also be arranged completely or partially within the second trench 45 because the width of the second trench is sufficiently wide.

The intermediate pusher 50 described above can also be provided in a similar manner in the exemplary embodiment shown in FIGS. 6 and 7.

Corresponding extensions of each of the first webs (e.g., 42r, 42s) may also be provided in the exemplary embodiment illustrated in Figures 6 and 7 for better guiding of the lower end region of the knit tool 48.

The exemplary embodiments described above are all based on the principle that the device works with the selector 8, and compared to the knitting tools 7, 48, the selectors have an increased thickness, so that a general selection mechanism can be used depending on the pattern. Come and choose. However, knitting tools having a thickness of about one-half the thickness of the selector are lifted in pairs by the selector 8 (i.e., after each selection step of electromagnetic or the like), each lifted selector 8 At the same time, two adjacent knitting tools 7 are lifted into a hanging needle or knitting path, for example by means of said cam portion. Thus, in a color or knit pattern, two adjacent stitches in the knit should be identical, i.e., all of the same color or knit architecture. This has the particular advantage of the electromagnetic selection of the selector 8, i.e., the selection process can be doubled and the thickness of the selector 8 can be constructed to be thicker than the thickness of the selector typically used on high denier needle tools.

The same advantage can be obtained if the selector 8 is constructed to have the same pitch as the knitting tool 7 or 48 and is disposed in the same groove as the knitting tool. In this example, the selection mechanism can be constructed to simultaneously pivot or move the two selectors 8 adjacent to each other in the hub 40 to a predetermined position in a selection step. This is shown schematically in Figures 9 and 10, in which a pattern device according to European Patent EP 0 319 007 B1 is shown. In this exemplary embodiment, the knitting tool 53 is provided with a receiving mechanism 54 in which the selector 55 is mounted for pivoting. In this example, the selection is effected via an electromagnetic selection mechanism 56 having a control element 57 in the form of a striking needle that is movable in the direction of the selectors 55. By the tip end 57a of the striker, a resilient impact is applied to the selector 55, such as by a position in which the selector will pivot from the position shown by the solid line in Fig. 9 to the position shown by the broken line in Fig. 9 and The lower stitch 55a is retracted into the receiving mechanism 54, and the stitch 55b is pivoted out of the receiving mechanism 55. In contrast, according to the invention, the thickness of the control element 57 is the sum of the thicknesses of the two selectors 55 and one of the webs 58 between the two selectors 55 (Fig. 10). Alternatively, it is sufficient to provide only the thickness of the tip 57a. With these two structures, unlike the previous single selection in each selection step, in the present invention, two knitting tools 53 adjacent to each other in the hub are selected at the same time and guided to a single In the selected path. The frequency at which the control element 57 must be moved is thus half the frequency at which only one selector 55 is pivoted per impact.

A similar pattern device can also be constructed using a purely mechanical mechanism. For example, based on the patterning device of German Patent No. 2,162,632 A1, each control element can be manufactured as a pin inserted into a conventional pattern drum, a cam or the like, the width of which is approximately the needle seat. Double inside two adjacent knitting tools. In this example, the patterning device can also select two knitting tools in each selection step by using a selector having a denier corresponding to the denier of the knitting tool and a control element associated therewith having a higher denier.

The invention is not limited to the exemplary embodiments of the circular knitting machine and the hub described, and these embodiments can be modified in various ways. This also applies to the number of real weaving tools that can be selected at each selection step. Contrary to the dual selection described above, more than two, such as three or four, knitting tools can be selected simultaneously in each selection step and directed into the same path, such as in a knit path. Therefore, it is apparent that the present invention can be easily applied to a high-density knitting machine, particularly a knitting machine having a fineness higher than E40. Moreover, the invention is not limited to the described selectors, as other selectors and selection elements may be used in place of them. It is also possible to completely dispense with the selector and allow the selection mechanism and the selection elements to act directly on the knitting tool. In addition, it is apparent that the selection of a knitting tool according to the invention can also be applied to the manufacture of patterns on plush and/or high-pile knitting machines and flat weaving machines, and The invention is particularly advantageous for implementation on a circular knitting machine in which the needle hub can be constructed in the form of a dial. Furthermore, other selection mechanisms or pattern devices can be used. In principle, the selection mechanism can be constructed in any desired manner and implements the selection of selectors or control elements using mechanical mechanisms, purely electronic mechanisms, such as the use of bending elements, pneumatic or electromagnetic mechanisms. Finally, it should be understood that different features may be applied in a different combination than the features described and illustrated.

1. . . Needle seat

2. . . Support ring

3. . . External gear edge

4. . . Cam plate

5. . . Cam support

6. . . Web

7. . . Knitting tool

8. . . Selector

8a. . . stitch

7a. . . stitch

5a. . . Cam segment

10. . . Selection agency

11. . . First lever arm

12. . . Second lever arm

14. . . Support point

15. . . bottom

16. . . Anchor surface

17. . . Raised stitch

18. . . Raised stitch

19. . . Support pin

20. . . Cam section

twenty one. . . Cam section

twenty two. . . Concave

twenty three. . . Separate cam

twenty four. . . Cam section

25. . . Concave

26. . . Separate cam

27. . . Cam section

28. . . Knitting cam

29. . . Hanging needle cam

30. . . Pressure section (pressing cam)

31. . . Control cam

32. . . Control cam

33. . . Holding magnet

9. . . Pre-tensioned spring

28a. . . Knitting path

29a. . . Hanging needle (no knitting) path

34. . . Holding magnet

35. . . Through path

36. . . Pull down cam

37. . . Pull down cam

40. . . Needle seat

40a. . . Section

40b. . . Section

41. . . The central axis

43. . . First groove

42. . . First web

44. . . Second web

45. . . Second groove

46. . . free space

7x. . . Knitting tool

7y. . . Knitting tool

42r. . . First web

42s. . . First web

42t. . . First web

42u. . . First web

46a. . . free space

7ai. . . stitch

7aj. . . stitch

7ak. . . stitch

7al. . . stitch

7am. . . stitch

7an. . . stitch

7ao. . . stitch

7ap. . . stitch

48. . . Knitting tool

48a. . . First section

48b. . . Second section

48c. . . Transition zone

48d. . . Lower end

T1. . . Spindle distance

T2. . . Spindle distance

50. . . Middle push

50a. . . Transition zone

50b. . . Upper end

50c. . . Lower end

51. . . Contact surface

52. . . Contact surface

53. . . Knitting tool

54. . . Receiving institution

55. . . Selector

56. . . Electromagnetic selection mechanism

57. . . control element

57a. . . Cutting edge

55a. . . stitch

55b. . . stitch

8x. . . stitch

Further advantageous features of the invention are readily apparent from the scope of the patent application. The invention will be described in detail below with reference to the exemplary embodiments shown in the drawings.

Figure 1 is a schematic radial pattern of a knitting cylinder and associated cam designed by conventional means

Figure 2 is a view on the developed view of the cam in the working area of Figure 3 as seen from the inside;

Figure 3 is a perspective view of a knitting needle cylinder of a circular knitting machine in accordance with the present invention;

Figure 4 shows an enlarged detail view of the knitting needle cylinder of Figure 3;

Figures 5 to 8 are schematic cross-sectional views through two further exemplary embodiments of a knitting needle cartridge in accordance with the present invention;

Figure 9 is a schematic radial view of another exemplary embodiment of the present invention;

Fig. 10 shows a section taken along the line X-X of Fig. 9.

7a. . . stitch

7x. . . Knitting tool

7y. . . Knitting tool

8a. . . stitch

8x. . . stitch

16. . . Anchor surface

19. . . Support pin

40. . . Needle seat

40a. . . Section

40b. . . Section

42. . . First web

43. . . First groove

44. . . Second web

45. . . Second groove

46. . . free space

Claims (19)

A knitting machine for manufacturing a knitted fabric provided with a pattern, comprising: at least one needle seat (40) provided with a groove (43), a knitting tool (7, 48, 53) which is displaceably mounted on Among the grooves (43), at least one cam segment (5a) is movable relative to the hub (40) and defines at least two different for the knitting tools (7, 48, 53) Path (28a, 29a, 35), and at least one patterning device (8, 10; 54, 56), by means of the patterning device, the knitting tools (7, 48, 53) can be continuously selected according to a pattern The step is divided into the at least two paths (28a, 29a, 35), characterized in that the pattern device (8, 10; 54, 56) is constructed, and in each selection step, at least two bits are Individual knitting tools (7, 48, 53) adjacent to each other in the hub (40) are simultaneously selected in the same manner and guided into the same path in the at least two paths (28a, 29a, 35), The knit tools (7, 48, 49) are disposed within the hub (40) with a fineness of at least E40. A knitting machine according to claim 1, wherein the patterning device has a selection mechanism (10) and a selector (8) which are adjacent to the at least two knittings adjacent to each other in the needle holder (40). The tool (7, 48) is associated and can be moved by the selection mechanism (10) into one of the at least two positions in each selection step. A knitting machine according to claim 2, wherein the patterning device has a plurality of selectors (8) of this type, wherein at least two individual knitting tools (7, adjacent to each other) are located in the needle holder (40). 48) with each selection The selector (8) is associated and one of the selectors (8) in each of the selection steps is movable by the selection mechanism (10) into one of the at least two positions. A knitting machine according to claim 3, wherein the needle hub (40) comprises a first section (40a) having a first groove (43), each of the first grooves receiving a knitting tool (48) And a second section (40b) having a second trench (45), each of the second trenches accommodating a selector (8), wherein the first trenches (43) are provided with a first The spindle pitch and the second grooves (45) are disposed with a second spindle distance which is at least twice the distance from the first spindle, and the two segments (40a, 40b) of the hub (40) They are separated from each other by at least one free space (46, 46a). A knitting machine according to claim 4, wherein in the free space (46), the upper end of the selector (8) acts on the lower end of the at least two respectively associated knitting tools (48) ( 48d) for distributing the knitting tools on the at least two paths (18a, 29a, 35). A knitting machine according to claim 4, wherein the knitting tool (48) has first and second sections (48a, 48b) joined by a transition zone (48c), wherein the transition zone (48c) ) is disposed in the free space (46) and the second segments (48b) are associated with the selectors (8). A knitting machine according to claim 4, wherein the intermediate pusher (50) is disposed on the knitting tool (48) and the selector (8) Between. A knitting machine according to claim 7, wherein the lower end (48d) of the knitting tool (48) or the lower end of the intermediate pusher (50) projects into the second grooves (45). A knitting machine according to claim 4 or 5, wherein the needle hub (40) is a knitting needle cylinder, wherein the two sections (40a, 40b) are axially axially adjacent to each other by at least one free space (46a, 46b) Separated, wherein the first section (40a) is disposed in an upper region and the second section (40b) is disposed in a region of the needle cylinder below the upper region. A knitting machine according to claim 4, wherein the selector (8) has a thickness which corresponds to at least twice the thickness of the lower end of the knitting tools (7, 48). A knitting machine according to claim 1, wherein the patterning device comprises a selector (55) which is individually associated with the knitting tools (53) and is pivotally and/or displaceably mounted and Can be moved into at least two positions, and the patterning device has a selection mechanism (56) with a control element (57) such that at least two of the needle holders (40) are adjacent to each other in each selection step The selector (55) can be simultaneously moved into the same position in the at least two positions. A knitting machine according to claim 11, wherein the selectors (55) are mounted for pivoting into the receiving mechanism (54) of the knitting tools (53). A knitting machine according to claim 11 or 12, wherein the control element (57) is a striking needle. A knitting machine according to claim 11 or 12, wherein the control element is a cam inserted into a control drum. A needle holder for a knitting machine having a plurality of grooves for receiving a knitting tool (7, 48) and a selector (8), characterized in that it comprises a first section (40a) having a capacity for receiving the same a first groove (43) and a second section (40b) of the knitting tool (7, 48) having a second groove (45) for receiving the selectors (8), wherein the first The groove (43) is provided with a first spindle distance and the second groove (45) is provided with a second spindle distance corresponding to at least twice the first spindle distance, and the two segments (40a) , 40b) are separated from each other by at least one free space (46, 46a). A needle holder according to claim 15 wherein the first grooves (43) are formed by the first web (42) and the second grooves (45) are formed by the second web (44) Formed wherein a portion of the first web (42) is comprised of a long web (42r, 42s) having an extension that projects beyond the first section (40a) And the remaining first web (42) is a short web (42t, 42u) that does not extend beyond the first section (40a) such that a separate free space (46a) is individually formed in each two Between the extensions of the first webs (42r, 42s) that extend beyond the length of the first section (40a). A needle holder according to claim 15 or 16, wherein the needle hub is a knitting needle cylinder, wherein the two segments (40a, 40b) are separated from each other by at least one free space (46, 46a) Separating, wherein the first section (40a) is disposed in an upper region and the second segment (40b) is disposed One of the needle cylinders is placed in the area underneath the upper region. The needle holder of claim 15 or 16, wherein the first grooves (43) are constructed according to a fineness of at least E40 and the second grooves (45) are based on a fineness of at most E20 Construction. The needle holder of claim 17, wherein the first grooves (43) are constructed according to a fineness of at least E40 and the second grooves (45) are constructed according to a fineness of at most E20.