DE1186972B - Pattern device for right / right circular knitting machines acting on the dial needles - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. CI .:

Number:
File number:
Registration date:
Display day:

D04b

German class: 25 a - 27

F25605VII a / 25 a
April 26, 1958
February 11, 1965

The invention relates to pattern devices for right / right circular knitting machines, which have arranged, stacked expulsion members within the dial lock housing and can be controlled by a sample apparatus arranged outside the dial lock housing.

In a known pattern device of this type are provided with selector feet, angle lever-shaped Needle slide for dial needles in radial slots of one of the dials driven evenly and rotatably mounted to her vertical wheel and are superimposed by in the dial lock cover arranged and guided selector blades operated on their main axis to the machine executed ends act on the arms of angle levers protruding into the dial lock housing, which are pivotable about a common pivot pin fastened on the dial lock cover and whose arms protruding from the dial lock cover through the pins set according to the pattern stored on the cylinder lock jacket, od by a pattern chain Pin drum are operated.

A special embodiment of this known sample device has also been proposed been to omit the lever actuating the selector blades and the pen drum or a to arrange equivalent means immediately behind the linearly displaceable selector blades, so that whose pins can act directly on the dial blades. Finally, it has already been suggested to train the selector blades as a lever and to each other by a corresponding number of to operate concentric cam segments, which are connected to a vertically arranged gear are driven by a ring gear mounted on or in the ribbed lock cover.

All these known pattern devices have the disadvantage that that about a radially positioned horizontal axis rotatable wheel in which the needle slide are pivotably mounted, a very takes up a lot of space, so that only a few knitting systems are housed on the machine can be. In addition, because of its large diameter, the wheel must be outside the dial lock housing be arranged where it both hinders the overview and because of its high speed is dangerous. There is also the disadvantage that those achievable with such pattern devices Pattern options, insofar as they depend on the number of pattern feet provided on the needle slides, are quite limited because the diameter of the pattern device acting on the dial needles for right / right circular knitting machines

Applicant:

Fouquet factory, Frauz & Planck,
Rottenburg / Neckar

Named as inventor:

Wolfgang Mühlhäusler, Tübingen;

Alfred Morgenstern, Rottenburg / Neckar

of the wheel carrying the needle slides with the increase in the number of those to be attached to the needle slides Sample feet very quickly become unacceptable. Another disadvantage is that the selector blades are only returned to their inoperative position by the action of return springs will. If the selector blade guides are dirty, it can happen that an in its effective position driven out selector blade stops in this position and a defective one Pattern evokes. Finally, it should not go unmentioned that these known pattern devices Parts that are difficult to manufacture (such as the one carrying the needle slide with narrowly divided radial slots provided wheel) and parts that are easily damaged or subject to heavy wear (such as those from thin sheet metal existing needle slide or the selector blades and the interacting with them Surfaces of the selector lever or selector cam). In another known one, dialing needles Pattern device, the expulsion organs consist of pattern disks, which are at each work site stacked one on top of the other and connected to a drive shaft continuously driven by the dial are and with their control cams on superimposed sample feet at the inner ends of the Work on dial needles. This known pattern device also has the disadvantage that, as a result of it Construction from a large number of parts is expensive. In addition, any modification of the pattern can only be done by changing it of the sample disks, because only that in the cams of the sample disks specified pattern can be worked. In addition, the pattern height depends on the number of pattern discs and the pattern width of that limited by the radius of the dial lock housing

509 508/33

3 4

Diameter of the pattern disks dependent, so that the circumference of the switching rings are displaceable, with

the pattern formation possibilities with this known - each slide with a lower horizontal one

th pattern device are extremely limited. Leg engages one of the switching rings while

The invention avoids these disadvantages in that the vertical center bar of the slide is provided at the top by a single stack of the main axis 5 opening in the cover of the dial lock housing after concentric switching rings and that each protrudes outside and the upper horizontal leg of the switching ring for itself by means of the sample apparatus carries, which can be rotated with its associated selector and is coupled to one of the number of systems of the. The number of radially dialing organs that interact with the slider is preferably provided as individually outwardly projecting cams, multi-armed levers that are movable and under the action of Rückholwelchen each with an associated expulsion spring are formed, the organ in cooperates in the way that all are all arranged on a common axis of rotation around a switching ring expulsion organs, and each of which has a lever arm, when the switching ring is rotated in one of its outer end one of all selector organs ge-direction of rotation in an effective and with a common switching element is facing, which consists of a rotation of the switching ring in the opposite wedge, which is connected to a pivotable switching direction of rotation in an inoperative position lever and arranged in such a way, each of the expulsion members with the in that when the S switch lever that interacts with the sample feet lying in the rest of its plane, the selector organs located in one rotary position, the selector organs in a pattern according to a distribution in several directions and the selector organs brought by the model apparatus in "planes lying one above the other on needle slides selector position" are envisaged, which move with the dial needles. swiveled in the opposite direction of rotation,
are positively connected so that each needle slide. Further features of the invention emerge from the expulsion member, which is connected to an embodiment dial needle shown in the drawings, regardless of the example in the catching position .

sensitive drive parts of the dial lock in their F i g. 1 shows, in a predominantly schematic Dar enclosed position, fully drives out, while the needle position shows a vertical axial section through the needle slide on the cylinder and rib head of a circular knitting machine in their inoperative position;
sensitive expelling organs passes freely and the 30 F i g. 2 shows an enlarged section of the associated dial needle through the drive parts of the left part of FIG. 1, around which the dial lock is brought into the catching position. Dial needles and the needles coupled with them

To show a particularly compact design of the switching ring slide;

stapeis is obtained if you place the switching rings with F i g. 3 shows two supporting rings carrying the switching rings

their inner edges individually in rotations of 35 bolts with rotations offset from one another;

Support bolts are stored, which within the switching rings to- F i g. 4 shows two switching rings in FIG

are ordered, and the rotations on each perspective view;

two in the circumferential direction of the switching rings on one- F i g. 5 to 10 show various in plan view

other following support bolts according to minde- positions of a switching ring with the associated

at least by the thickness of a switching ring against each other 40 slider and selector including switching member and with

offset, so that the notches on a bearing operated by the switching ring expulsion members;

bolts each have a protruding collar on the other Fig. 11 shows a plan view of a part of the rib

Support bolt faces. If you do the lock with a switching ring and associated

Make turns a little higher than the thickness of the slide and expulsion organ;

Switching rings, in spite of the closest coincidence, 45 FIG. 12 shows a perspective view

layering of the switching rings a free twisting of a radial cut through the pattern device,

availability of each switching ring compared to both of them - with only one in each case for the sake of better clarity

side adjacent jockey rings. Ausreiborgan, a slide with a selector and

According to the invention, each switching ring is shown with a needle with a needle slide.

coupled only to the drive member assigned to it alone, 50 F i g. 1 shows the needle cylinder 20, which is

which is provided through an opening in the cover of the rib groove 21 for the cylinder needles and

lock housing is driven upwards from this housing by means of a ring gear 22. the

executed and outside of the dial lock housing cylinder needles and the cylinder lock are not

shown with a selector unit assigned only to him, because it does not matter for the invention

is coupled, which play from one through a stop 55.

certain rest position by the pattern apparatus. The dial 23 is opposed by the dial the action of a return spring is carried in one of the plates 24, which with the position from above of the associated drive element and switching gears ribbed disk shaft 25 fixed in terms of rotation rings, which does not change the preselection position, is moved and connected. The dial 23 is radial first through a 60 groove 26 (FIG. 12) common to all selection organs for guiding the dial needles 27 Switching element, which by one with the needle and with a comb 28 for guiding the high cylinder revolving switching cams periodically provided at the rear end of the needle slide 29 is made in one of two possible limit positions (Figs. 1, 2 and 12). At the front end of each needle gene is moved, with the selector element which is assigned to it slide 29 is a circular head 30 upstream Drive member and seen with this 65, which is in a corresponding recess on the coupled switching ring takes with it. As the drive rear end of the associated dial needle 27 engages, organs for the switching rings are advantageous so that each dial needle 27 with its needle slide Z-shaped slider is used, which is tangentially coupled to the 29 by a joint with positive motion

is. At the rear end of each needle slide 29, sample feet 31 ¹ to 31 ¹² , which are perpendicular to one another and extend inward toward the main machine axis 32, are provided. The sample feet 31 are broken out so that the remaining ι sample feet of the successive needle slide 29 result in a pattern.

The stationary dial lock 33 is arranged above the dial 23, the segment-shaped parts of which are provided with a needle channel 34 (Figs. 2 ic and 11) in which the needle feet 35 provided on the upper edge of the dial needles 27 slide when the dial 23 rotates . At the expulsion point 36 of each dial lock section, a needle drive part 37 is provided which can be pivoted about a pivot pin 38 by hand or by mechanical control in such a way that the dial needles 27 are either in the catching position to form tuck stitches (37 ¹ and 37 ² in F i g.ll) or to form simple stitches in one-closing position fully drives out (37 ¹² in Fig. 11). The segments of the dial lock 33 are fastened on the underside of likewise segment-shaped dial lock plates 39, which in turn are detachably attached to the dial lock cover 40. The dial lock cover 40 is bell-shaped in order to be able to accommodate part of the pattern device according to the invention.

This pattern device includes switching rings 41, which are provided in a number corresponding to the number of pattern foot planes. In the case of the illustrated embodiment, twelve switching rings 41 ¹ to 41 ^{12 are} provided, corresponding to the twelve planes in which the sample feet 31 ¹ to 31 ¹² are arranged on the needle slides 29. The switching rings 41 are arranged concentrically to the main machine axis 32 within the dial lock 33 and are mounted with their inner edges in recesses 42 of support bolts 43 which are fastened to the dial lock cover 40. Like the right half of FIG. 3 shows, the recesses 42 can also be formed by slipping rings of varying diameters onto the support bolts 43. Each switching ring cam 46 interacts with an expulsion element 47 which is mounted pivotably about a pivot pin 48 fastened to the dial lock cover 40 and is provided with a cam 49. All expulsion members 47, which are assigned to the same expulsion point 36 of dial lock 33, are arranged in the same planes with the associated switching rings 41 in a stack-like manner on a common pivot pin 48. Each expulsion element 47 can be pivoted individually by means of the associated switching ring cam 46 around its pivot pin 48 in two limit positions, namely in an inoperative position in which its cam 49 lies within the circle 50 on which the ends of the sample feet 31 at their inner rest position located needle slide 29 ( ^{Fig. 7 and Ausreiborgane 47 1} and 47 ¹² in Fig. 11), and in an effective position in which its cam 49 protrudes beyond the circle 50 and which is on this circle in its plane at it moving sample feet 31 detected (Fig. 5, 6, 9 and 10 and expulsion member 47 ² in Fig. 11). Each needle slide 29, on which a sample foot 31 protrudes into the path of an effective expulsion cam 49, is moved radially outward, whereby it fully expels the dial needle 27 connected to it into its containment position, regardless of the position of the propulsion part 37, which is located at the expulsion point 36 lying on the same radius 80 as the cam 49 (FIG. 11). So that the expelling members 47 are secured in each of their limit positions against an undesirable change in position due to friction of the cams 49 on the sample feet 31 or due to vibrations of the machine, two lever arms 51 and 52 are provided on each expelling member 47 at an angle against each other, of which in each limit position of one arm (z. B. 51) is supported against the associated switching ring cam 46, while the end of the other Anns (z. B. 52) rests on the circumference of the switching ring 41 (Fig. 5 to 11).

The pivoting of the switching rings 41 in the two directions of rotation is carried out by each Switching ring specially assigned slide 53, the off

in the illustrated embodiment there are six

Support bolt 43 is provided, which consists of a sheet metal strip bent into a Z-shape at the same angle. All

gaps along the inner circumference of the slide ^{switches 53 1} to 53 ¹² are stacked in one another

rings 41 are arranged. The recesses 42 are connected and by means of a common guide 54

with two straight in the circumferential direction of the switching rings (Fig. 5 to 10). Each slide 53 has

41 successive support bolts 43 ¹ and 43 ² a lower horizontal leg, which against a

(Fig. 3) in such a way the height of the switching rings 41 is directed against each other and at its free

on the other, that in each case a recess 42 of the one bolt (z. B. 43 ¹ ) faces a protruding collar 44 on the other support bolt (z. B. 43 ^2). Each switching ring (e.g. 41 ¹ ) is only supported in the recesses 42 of such support bolts (e.g. 43 ¹ ), the recesses of which are at the same height, while the next switching ring (e.g. 41 ² ) is in the recesses 42 of the other support bolts (z. B. 43 ² ) is mounted. The switching rings 41 are provided with circular arc-shaped recesses 45 at the points at which they face the collar 44 of a support bolt 43, which are so long that the switching ring can be rotated. The height of the notches is slightly greater than the thickness of the switching rings 41 so that they can be rotated easily. Outwardly projecting cams are provided on each switching ring 41, each of which is assigned to a drive-out point of the dial lock 33.

End carries a circular disk-shaped driver attachment which engages in a recess 56 (Fig. 4) on the circumference of the associated switching ring 41 (Fig. 5 to 12). The radial lengths of the lower horizontal legs on the slides 53 are graduated in such a way that all driver lugs in the rest position and in the same limit positions are perpendicular to one another. The vertical central web of each slide 53 is guided upwards through an opening 57 provided in the dial lock cover 40 (FIGS. 1, 2, 11 and 12) and there carries the second horizontal leg, which has a transverse slot 58 for the guide pins 54 to pass through is provided. Each of the slides 53 ¹ to 53 ¹² can be moved individually transversely to its longitudinal direction, namely tangentially to the circumference of the switching rings 41, on the guide pin. At the free end of the upper horizontal leg each

Slider 53, two projections 59 and 60 are provided (Fig. 5 to 10 and 12), which are used for coupling of the slide 53 with a selector element 61 are used.

The selection organs 61 (Fi g. 5 to 12) have in the illustrated embodiment the shape of three-armed levers, all together around a common Pivot pins 62 are pivotably mounted. The pivot pin 62 is on one of the dial lock cover 40 attached bearing plate 63 attached (Fig. 1). Each selector 61 has a lever arm 64, on which one end of a return spring 65 acts, the other end of which is fixed at 66. A second lever arm 67 engages with its free end between the projections 59 and 60 of the associated Slide 53 and thereby causes its displacement to one side or the other, as the case may be the selector is pivoted with or counterclockwise. The third lever arm 68 stands with its free end opposite a switching element 69, which acts on all selection elements 61 together and consists of a bar with a small cross-section, which is to be referred to below as the switching wedge. The apex of the switching wedge 69 is the facing the free ends of the lever arms 68. Of the Shift wedge 69 is provided as a vertical bar at the end of a "shift lever arm 70, which is in the Bearing plate 63 'dre & fcar mounted selector shaft 71 connected is. With the lower end of the selector shaft

71 is connected to the second SehaWiebelann 72, the at its free end ekie roller 73 carries.

These runs on the inside of the cylinder drive gear ring 22 on which also, during each revolution of the needle cylinder W the lever 70

72 actuating switching cam 74 is arranged. The upper shift lever arm 70 is still with a side Approach 75 provided ^ - which carries a pin 76. The pin 76 serves in the rest position of the holding lever 70, 72 as a stop for the lever arms 68 of all in Quietly located Wählorgaee -61, which by the pulling action of the return springs 65 on the pin 76 be created. A transverse slot 77 is provided in the spring-loaded lever arm 64 of each selector element 61, in which the end head 78 of a wire train 79 is displaceably guided. The wire trains 79 of all Selector elements 61 lead to a sample apparatus of any type (not shown) (sample drum, sample chain apparatus, Jacquard card apparatus), through which they are attracted independently of one another in the arrow direction indicated in FIGS. 1, 6 and 12 when one or more of the selection members 61 are to be operated.

The mode of operation of the sample device described is as follows: When the sample device is used, all drive parts 37 of the dial lock are set to "catch", ie they do not drive the dial needles 27 completely, but only into the locking position (see needle lifters 37 ¹ and 37 ² in Fig. 11).

The pattern device is in its “rest position”, which is shown in FIG. In In this position, the selection members 61 are held by the pin 76 serving as a stop on which their lever arms 68 rest under the action of the return springs 65. The lever arms 67 of the selection organs 61 engage between the projections 59 and 6Θ on the slides 53, but do not touch any of the Ledges. All switching rings 41 are in their rest position, in which their cams 46 Hold Ausreiborgane 47 in the effective position in which their Ausreibnocken 49 the Fully drive needle slide 29 and the dial needles 27 connected to them into the containment position.

If now the sample apparatus, not shown, pulls one of the wire pulls 79 to the left, it is pivoted the wire pull the selector element 61 connected to it against the action of the return spring 65 in the “preselection position” (Fig. 6). In this position, the arm 67 of the selector 61 comes only to rest on the projection 59, but without moving the slide 53 out of its rest position. Of the associated switching ring 41 therefore also retains its rest position.

The selection element 61 selected by the sample apparatus is only actuated when the roller 73 of the switch lever 70,72 runs onto the switch cam 74 on the cylinder ring gear 22 and the switch

ao lever pivoted counterclockwise (Fig. 7). The shift wedge 69 is against the free end of the selector lever arm 68 is moved, the opposite of the right wedge surface of the shift wedge 69 clockwise to its "dial position"

as is pivoted. The one so far at the projection 59 adjacent lever arm 67 moves the associated slide 53 tangentially to the circumference of the associated Switching ring 41, and the shoulder 55 twisted on the lower horizontal leg of the slide the associated switching ring 41 clockwise. As a result of the rotation of the switching ring 41 arrive whose cams 46, which were previously under the arms 51 of the expelling organs 47, under the Arms 52 of the expulsion members 47 and pivot them into their inoperative position. The dial needles 27 are therefore only driven out by the drive parts 37 of the dial lock, namely into the catch position, in which they do not knock off stitches, but a handle for the later formation of Pick up catch stitches. The wire draw 79 was passed through the sample apparatus during this process relaxed again.

As soon as the switching cam 74 has passed under the roller 73, the return spring 65 can Return the selector element 61 to its "rest position", in which its arm 68 on the pin 76 of the shift lever 70, 72 is applied (Fig. 8). The selector element 61 is pivoted clockwise, and his arm 67 moves from the projection 59 against the projection 60, but without the position of the Slide 53 to change.

If the sample device now actuates the same selection element 61 again, then only the selection element lead 61 and the shift lever 70, 72 perform the movements described with reference to FIGS. 6, 7 and 8, while the slide 53, the switching ring 41 and the expulsion members 47 remain in the "selected position" (Fig. 8).

If, however, the sample device does not actuate the previously considered selector 61 again, then it is the selector element 61 located in the rest position through the left wedge surface of the pivoted by the switching cam 74 Switching wedge 69 pivoted clockwise (Fig. 9). The arm 67 takes the Selector element 61 carries the slide 53 with it and brings it into its "rest position" in which the switching ring 41 the expulsion members 47 are pivoted into their effective position (FIG. 9).

If now the switching cam 74 releases the switching lever 72, 73 again and this together with the selector 61 returns to its rest position under the tension of the return spring 65 (FIG. 10), then the same position is produced again as in FIG. 5.

Claims (12)

Patent claims: 1. Pattern device acting on the dial needles for right / right circular knitting machines which has expulsion organs arranged one on top of the other and arranged within the dial lock, and is controlled by a sample apparatus arranged outside the dial lock housing, d a by characterized in that a single stack of concentric to the machine main axis Switching rings (41) provided and that each switching ring for itself by means of the sample apparatus twistable and with one of the number of systems (36) of the dial lock corresponding number of radially outwardly projecting cams (46) is provided, each of which with an associated expulsion element (47) in the manner cooperates that all around a switching ring (41) arranged expulsion members (47) at a rotation of the switching ring (41) in one direction of rotation in an effective and with a rotation of the switching ring in the opposite direction of rotation in an ineffective Position are brought, with each of the expulsion organs (47) with the lying in its plane Sample feet (31) cooperate in a pattern according to distribution in several superimposed levels of needle slides (29) are provided with the Dial needles (27) are positively connected so that each needle slide (29) when Running on an expulsion organ (47) which is in its operative position, the one connected to it Dial needle (27) regardless of the propulsion parts (37) of the Dial lock fully drives into its closed position, while the needle slide (29) is attached to the in their ineffective position located expelling organs (47) freely passes by and the associated Dial needle (27) through the jacking parts (37) of the dial lock is brought into the catch position. 2. Pattern device according to claim 1, characterized in that each switching ring (41) is coupled to a drive member (53) which is only assigned to it and which through an opening (57) in the lid of the dial lock housing led out of this housing upwards and outside of the dial lock housing with a selector element (61) assigned only to it is that from a rest position determined by a stop (76) by the sample apparatus against the action of a return spring (65) in the position of the associated drive member and switching rings that do not change the preselection position moved and only by all Selector elements (61) common switching element (69), which by a rotating with the needle cylinder Switching cam (74) is actuated periodically, in one of two possible limit positions is moved, the selection element (61), the drive element (53) assigned to it and the drive element (53) associated with it coupled switching ring (41) takes with it. 3. Pattern device according to claim 2, characterized in that each drive member (53) designed as a Z-shaped slide which can be moved tangentially to the circumference of the switching ring (41) whose lower leg (55) engaging on the switching ring is in the plane of the switching ring (41) lies, while the vertical central web of the slide above through the opening (57) in the lid of the Ribbed lock housing protrudes outwards and carries the upper horizontal leg, which is with its associated selector (61) is coupled. 4. Pattern device according to claim 3, characterized in that in the direction of displacement extending edge of the upper horizontal leg of each slide (53) two projections (59 and 60) are provided between which an arm (67) of the multi-armed lever designed as a selector (61) engages. 5. Pattern device according to claim 4, characterized in that the distance between the two Projections (59 and 60) on each slide is sized in such a way that the one with them cooperating arm (67) of the selector (61) in the rest position of the slide and the Selector element (61) rests against either of the two projections. 6. Pattern device according to claims 4 and 5, characterized in that the selection organs (61) for all slides (53) are arranged on a common axis of rotation (62) and the free lever arms (68) of all selection elements face a common switching element (69), which consists of a wedge (69) which is connected to a pivotable switching lever (70, 72) and is arranged in such a way that it is in the rest position when the shift lever is operated located selector elements (61) in one direction of rotation and that of the sample apparatus in "Preselection position" brought selection members pivoted in the opposite direction of rotation. 7. Pattern device according to claim 6, characterized in that the switching wedge (69) carrying lever arm (70) also carries the stop (76) on which the selection members (61) in their Rest position. 8. Pattern device according to claim 1, characterized in that the switching rings (41) are individually mounted with their edges in recesses (42) of support bolts (43), which are preferably are arranged within the switching rings. 9. Pattern device according to claim 8, characterized in that the recesses (42) on two consecutive support bolts (43) of the in the circumferential direction of the switching rings Height offset from one another in such a way by at least the thickness of a switching ring (41) are that each recess (42) on a support bolt a protruding collar (44) on facing other support bolts, the inner edges of all switching rings with segment-shaped Cutouts (45) are provided in such a way that each switching ring is only available for such support bolts whose recesses (42) are arranged in its ring plane, engages in these recesses and there is guided with its inner edge on the bolt cores, while with the intermediate ones Carrying bolt the cutouts (45) provided on the same switching ring around the with the 509 508/33 Switching ring at the same height collars (44) between the recesses of these support bolts reach around. 10. Pattern device according to claim 1, characterized in that the each switching ring (41) associated expulsion members (47) from around fixed axes of rotation (48) into an effective and exist in an inoperative position pivotable cam disks, the cams (49) in their effective position with the associated propulsion part (37) of the dial lock on the same Hegen radius. 11. Pattern device according to claims 1 and 10, characterized in that each expulsion element (47) has two lever arms (51 and 52) which are arranged in such a way that both in the effective as well as in the ineffective position of the expulsion organ a lever arm (51 or 52) rests on the associated cam (46) of the switching ring (41), while the end of the other lever arm (52 or 51) rests against the circumference of the switching ring (41). 12. Pattern device according to claim 3, characterized in that the Z-shaped bent Slide (53) are combined in the same direction to form a package and share a common guide (54) have. Considered publications:
German Patent No. 444,989;
Swiss Patent No. 213 033;
British Patent Nos. 734406, 311 898. For this purpose 2 sheets of drawings 509 508/33 2.65 © Bundesdruckerei Berlin