CS212791B2 - Circular knitting machine for manufacturing jacquard and links-links fabrics - Google Patents

Description

The invention relates to circular knitting machines for knitting jacquard and two-stitch knitted fabrics with two needle cylinders.

Circular knitting machines for knitting jacquard and two-stitch knitted fabrics with two needle cylinders are known, • double-sided tongue * needles, needle sinkers, mezzanines and swivel selectors with dial elbows controlled by patterning the drums of the imaging drum, and lifting nodes having two knobs lock ring with three lifting locks of lifting knees. To be able to perform both types of knitting, these machines are provided with three imaging drums for this purpose, one of which is intended for knitting double-edged patterns, while the other two are intended for knitting jacquard patterns. Also known are two-roll machines intended for knitting only two-sided knitted fabrics, and in this case comprise only one imaging drum for this type of knitting. Furthermore, twin-roll machines for jacquard knitting are known which are provided with only two imaging drums for this type of knitting. Simplifying the machine by reducing the number of patterning drums thus leads to a reduction in its ability to perform variable knitting operations.

SUMMARY OF THE INVENTION The present invention relates to a circular knitting machine for knitting jacquard and two-stitch knitted fabrics with two needle rollers, double-ended reed needles, needle sinkers, mezzanines and swinging selectors with dial elbows controlled by imaging drum lever patterns, and two nipples. a ring with three lift locks of lifting knees, which according to the invention is characterized in that the lift sections of the lifting knees of the selectors of the first lift lock, the second lift lock and the third lift lock are disposed in the path of the selected selectors whose knees protrude out of the cylinder; a lock and a third lifting lock are provided with a pulling lock, the pulling portion of which extends into an idle track of the knees running below the level of the protruding knees of the selected selectors onto the lifting portion of the third a guide lock which is provided at the level of the idle track with a radially bevelled side push-down section for deselecting the selectors, the lock ring further comprising a selectively detachable tilt lock for tilting the selector selector to the desired position located in the selector upper selector path selectively detachable tilt lock, also located in the path of the selector's upper infants and provided with a selector tilt section from the non-selected position to the selected position of its lifting shin, the first selectively detachable activation lock; Lifting section - for lifting the lift-off boots from the idle track to the working track, located behind the second lift lock and in front of the sample drums of the imaging drum, and a second selectively detachable activated lock provided with a lift section for the lift lifting the lifting wheels from the idle track to the working track, located behind the patterning levers of the commander; before the first lift lock.

Patterning mechanism. In comparison with the prior art, the invention is reduced to a single imaging drum, without limiting the scope of the machine functions. The invention can be realized by creating new machines with a single patterning drum, or it is possible to modify the prior art three-drum machines so that they are simplified to single-drum machines, or more logically by adjusting the single-drum knitting. ; machines, hitherto intended for knitting only two-handed patterns, to provide the ability to also produce jacquard. knitwear. . . The invention can also be accomplished by modifying prior art jacquard double-drum knitting machines so that they also allow knitting of two-tooth patterns on the same machine. Also, the invention can be used to adapt machines which allow simultaneous knitting of the combined two-tooth and jacquard type by using only two patterning drums instead of four that would be needed with known machines but with this type of product · · There is limited market interest.

The invention thus allows both the mechanism of the knitting machine to be simplified in the construction of new machines and the functional capabilities of existing machines adapted to carry out one or both of the above machines. · Knitting methods.

In the following explanation, the description focuses more specifically on a knitting machine which operates alternately with a quadruple pattern and a jacquard pattern, provided with only one pattern hunt instead of the hitherto known · Solution · with · three sample drums.

The invention is explained in more detail by way of example in the following description, with reference to the accompanying drawings. In these drawings means. giant. · . 1A and 1B a set of lower and upper cylinder lock cylinders with added or modified parts relative to known machines, and with a selector assembly of both cylinders, FIG. 2 a schematic cross-sectional view a sectional view of the lock ring II - II of Fig. 1 and Fig. 4 for; 3 shows a longitudinal section through the diametral plane of the two rolls of a two-cylinder knitting machine; FIGS. 4 and 5 show a view of the lock system corresponding to FIGS. 1A and 1B to show the arrangement of several locks; by which knitting of either the jacquard or the two-stitch pattern is achieved, and FIG. 6 and 7 are cross-sectional views of the lock ring taken along lines VI-VI and VII-VII of FIG. 4, showing the radial profiles of some other locks.

Before describing in detail · the function of the equipment and construction. of the individual locks in order to work with both knitting patterns, a brief description of the construction of the lock system and of the movable members interacting with them is made, while only the most important parts and parts are described. known for. Management. . . the prevailing part. · Are. 'deleted. Giant. 1A shows by a stronger pulling of the parts which are adapted to the conventional solution of the lock system.

The drawings show two groups of pattern levers 1, 3 of a single imaging drum intended to provide both knitting methods, wherein the additional two imaging drums usually present in knitting machines capable of alternately knitting jacquard and tubular patterns can be omitted. These two omitted imaging drums are located in the positions Oi and Оз shown in FIG. 1A in prior art machines. The patterning levers 1, 3 are intended to act on the small toothed butts 51, 5 of the rocker selector 5, which is located in each groove of the lower needle cylinder C1 shown in Fig. 3, wherein the upper needle cylinder C _s is also shown in FIG. 3. The selector 5 oscillates in the middle position corresponding to the knee 5B, and is further provided with a lifting elbow 5A lying on its lower part ^. end, a knee 5C at the bottom of a group of small patterned toothed knees 51, and an upper knee 5D. Locks 7A, 9A, 17A, whose function will be explained in more detail below, may interact with the butt 5A when it protrudes when the selector 5 oscillates. In a position corresponding to the lift lock 17A, a tilt lock 13A is provided to act on the selector 5D of the selector 5. A second tilt is located immediately in front of the lift lock 11A. lock · 13B, designed to act on the knees · 5D. Interlocking. the ring further comprises activation locks 15A, 15B adapted to always have one of them in operation and one idle depending on when knitting is performed. jacquard or two-sided pattern, namely: when knitting · jacquard · knit is. activation lock · 15B idle. and the ISA activation lock. Knitting Two-handed Knits is the other way around. the idle activation lock 15A and the activation lock 15B are in operation. Immediately before the first. by a tilt lock 13A and a first lift lock 17A. a first yarn supply F1 and immediately in front of the patterning levers 1, 3 and hence the second lifting lock are located. 7A is. · placed. second inlet. threads F2. In each groove of the lower needle cylinder Ci, in addition to the selector 3, an auxiliary sinker 21 is located above it, with the knees 21E, 21F in two rows.

8 dachs. ' Above 'each auxiliary sinker.''Working platinum is placed. 23 with '' knees 23H, ¹ · 231, · for control '· double-sided reed needles · 25, typical of''two-cylinder knitting machines, with working sinker · 23 adapted''for · transfer of needle · · 25 · to ¹ corresponding to the working sinker 27 located in the upper needle cylinder C _s . The working platinum 27 of the upper cylinder is provided with a knee 27L and a knee 27M. +

Giant. 4 and 5 show several locks of the lock assembly in conditions; . when the knitting method is arranged for either the jacquard or the two-stitch pattern, wherein. in any case, they are represented by the following method, depending on the working conditions: locks which are fixed in any of the knitting methods are marked with a solid line locks that are movable and inactive are indicated by dashed lines, movable locks, which are temporarily in operation for all work on all corresponding nodes, are shown in full outline and hatched, and movable locks which only partially work; ie they are engaged to work on only high knees, they are marked with a full outline, and are spilled. .

In the figures showing the set of locks, they are indicated. . ·. some particularly important locks, interesting in terms of the following explanation. · Other locks. · Are · already. of known type. In the figures, there is shown a lifting lock 30 intended to act. on the knees 231 of the sinkers 23, the lock forming the eye 32 for the first thread inlet, the T1 thread, the lift lock, 34 for the knee 23A, located immediately before the second thread inlet F2, and the locks 36 , 38 serving. for. lowering the needles and forming the bobbin corresponding to the second yarn feed F2. The locks 40, 42, also shown in the figures, are designed to work with infants 27A working sinkers. 27 · upper · needle · War · _C ·. to create stitches. · Needles · 25, carried. these platinums · 27, on the corresponding. first strand threads. · F1 yarns · ·· .a. · Second. feed · F2 threads. . The locks shown below. 44, 46 are intended to be listed. mime · activity or · vice versa. in. partial or complete operation. . work with contra-angle 21F. · Auxiliary. The lock 44 is located in addition to the conventional arrangements in the assembly. while the lock ·· 46 - which · is in. position · corresponding to the lock of known machines · - · is. · Executed. as . mobile,. opposite. what · · what. in the known knitting machines was · firm. . · Two · locks. 46 are intended to be co - operative with a fixed retractable lock. which ..is · before ·. placed with this one. lock ·. 48 itself is intended to interact in the knitting of a two-leg knitted fabric with a lock 50 added. in; place immediately following. ve ·. direction. patterned. levers 1, 3.

Locks 52, 54A,. 54B, 56 are intended for working sinkers. 23, .27. when knitting obourtibia · knitted fabric - the lock 52 serves for an additional stroke of the sinkers 23. which already. · Were ^: · · raised by auxiliary · sinkers 21. with ·. · 50, lock · 56 · is designed. to run all. needles · 25, · which have been · hooked with the respective working sinkers 23,. while lock. · 54A · serves .to escape or .to release the needles. 5 · z. Platinum · · 27. ./Team,. It acts on the elbow, · · 27N, and the lock. · .54B. starting all work,. platinum '' 27th direction. . · To the lower needle, ·. Roll ···. Cp · jLock ·. 51, · · lying. next to the locks. 54A, 54B, serves to provide additional pressure to: the working sinkers .27 by acting on the knee 27M so that the needles 25 are gripped by the working platinum. · 23,. which have been raised by lock 46; _;

Because of the usual arrangement, the device is in. - essentially · solved so that · two are omitted; Group .the ^ orovacích. · .páček corresponding ···. ^·: positions. Oi,. · Axis, · · and · are added activation; locks 15A ,. .15B which are movable, so that one. is still. . and the other is. Still idle, and vice versa, depending on whether the machine is to be adapted for knitting jacquard or two-handed knits as mentioned above. ··· Further is-·; · Added lock 50, which is movably adapted to operate and to inactivity, lock 46 is modified. such that it is movable so that it can be completely. in activity or only partially in activity. and yeah · added lock 44, which can. be given .do. ^: .Iiečin ^ i ^ ^ axis or · · · · dosčástečné inactivity. · / In addition, cypress. a retractable lock 9A, which: · did not. Hitherto known knitting machines; á ··; • mm: ·. · · • dj.skuo ··

Below is more detail. explained the operation of the lock system. several acts, and a. by referring to. . · 4 ·. and · 5. Tasks,? which are · ·. in-substance.-common,. . are. Listed only in hints or. are ·. Completely omitted, since it is assumed. ·. are known to those skilled in the art. · ·· · ::. · .- · ·; : m ·

In FIG. ·. .4 · is. . · Depicted ··. work ^:: machines · · knitting · jacquard · stockings with · ribbed · pattern 1: 1, that is, alternating one needle at the top. needle. · Rollers. and one needle in. lower. however, the choice of the ribbed pattern may also be varied, for example. 2: ·· 2 · or · 4: · 2 · or · 3: .1, and ··, depending on. on the option: achieved by small toothed wheels ^ c ^ r ^ l ^^ / л 51, -5z. Selectors. 5, · · · by the group ·. The patterning levers 1-, 3, which act or do not act in the operating positions. · .Small. toothed shin ·. 51 ,. 5.2. · 5 ,; .whereas . . this. The nodes are themselves arranged according to the desired sample. . Options · is. 'achieved; by means of the selectors, the toe 5a, which. is its lowest part. protruding or not protruding; .. z-rollers. Lock-IA, adapting to. the selectors 5C of the selectors 5 arrange the selectors 5. so that. · they · · protrude. · nodes ·· .5A ..at option. With the sampling levers of the group 3, Effect 5, as a result. the effect of the pattern. lever. groups ·· 1, · 3 ·. they protrude by the elbow 5A from the cylinder, and they are raised to. solid wood; Locking Lock ·. 7A, the instructors S with a knee SA not protruding from the cylinder cannot be obscured by the second lift lock 7A and are thus not lifted. With the instructors S, which were lifted on the second lift lock 7A along the path SA1, they are then lowered onto the paths SA2 lying below the usual selection path by means of a fixed pulling lock 9A. once the lowest level has been reached along the path SA2, the selector is on the third lift lock 11A by means of a front, bevelled, pushed section. acting radially on the elbow SA, pushed with its lower part into the cylinder. The SD selector shanks S, which the second lift lock 7A, the draw lock 9A, the third lift lock 11, A, engage after the lift along the path 5D1, are applied by the draw lock 13A at the idle level of the SD2 path, and these selectors S are raised again to the active level, i.e., to the selection level, to re-rotate the first ISA activation lock that acts on the knee. SB in the rotational range of the selectors S to indicate the trajectory of this node z. . levels. path SB2 to path level. SB3. a. . from the level of the path SA2 to. runway level. SA3.

Selectors. 8,. . that were not hit by the other lifting. lock. 7A, they remain their knees SA. inside the cylinder and at track level. a. with knees. SD. . protruding at orbit level SD2, so. the butts Sd are engaged and compressed by the tilt lock 13A, which, since the selector S tilts. causes the nodes to protrude. SA 'outward from the needle'. rollers so that they may encounter a fixed first. lift bay 17A and lift. the SAS, SDS.

This results in the selectors I being affected. a second lifting lock. 7A, are not affected first. the lift lock 17A, and vice versa, the selectors not affected by the second lift lock 7A are not actuated by the first lift lock 17A. This option can be varied 1 at each machine speed by modification. imaging drum, acting. for pattern levers 1, 3.

By the selectors S. were lifted upward by the lift lock 7A. or. 17A, lift the auxiliary sinker 21 and the respective working sinker 23, which come into contact with each other. Selectors S that have been hit by the second lift lock 7A,. affects working sinkers. 23. using auxiliary sinkers 21. so that. with their nodes. 231 · move along the runway. 23AI of cam 30, and 23A2 along the path in which the ^sinkers: 23 grasp the needle 2 S, which form with a lock 32 to the first thread. inlet F1 loop. These needles 2S on their path do not operate with the yarn of second lead F2, as the butts 231 extend along path 23A3.

The selectors S, which have been hit by the first lift lock 17A, bring the sinkers 23 with their knees 231 onto the track 23AS and are lifted. lock ·. Thus, the needles engage the yarn of the second lead F2, and the locks 38, 38 are further retracted so that they do not engage the yarn of the first lead F1, as the butts 231 move along the path 23A7. As a result, at each revolution, each needle 2S of the lower needle cylinder receives only one of the two threads.

The needles of the upper cylinder, which were captured by the sinkers 27 work describes their heel 27L path 27A1, 27A2, 27A3 and capture two feeds threads Fl and F2, forming stitches by means of cams 40, 42. In ^one form small rib-patterns of 1: 1 is necessary to remember on . that the needles of the upper needle. The needles associated with the sinkers 27 must have a tongue actuated by the lower needle cylinder. That is, the needles 28 of the lower needle cylinder must follow the path 23X. The sinkers 23, irrespective of the operation of the pattern levers 1, 3, follow their own path determined by the butts 21F of the auxiliary sinkers 21. These butts have two lengths: short butts and long butts. The movable bays 44, 46 that follow the lock 48 retracting the knees 21F are partially retracted. to the cylinder so that they occupy only to. the long nodes of the nodes 21F and lift only. long knees. The long nodes 21F describe. lane 21F1, 21F2, 21F3,. 21F4 and the upper ends of the working sinkers 23 corresponding to the long elbows 21F describe the lane 23X which. is effective for controlling the needle tongues 2S of the upper needle cylinder. It will be sufficient to ensure that the knees 21F are spaced so that each needle of the upper needle cylinder will correspond to an auxiliary sinker 21 with a long knee 21F.

Figure δ shows the process of knitting a stocking with a double-sided pattern. Given the arrangement shown for knitting a jacquard stocking, it should be particularly noted. the following modifications: the first activation lock 1SA is deactivated and the second one. the activation lock 1B is opposite. to this effect, also the second tilt lock 13B, similar to the first tilt lock 13A, is in operation, the lock 44 is idle and the lock 46 is fully operative.

Patterning. levers 1, 3 in working. position, by means of a suitable selection by one of the known systems, acts or does not act on the teeth of the selectors S1, 82 of the selectors S, which teeth are also arranged according to the desired sample. Selectors S, which have knees by means of the patterning levers 1, 3. SA protruding from the cylinder,. lift the SA21. on the second lift lock 7A. Selectors. with the SA window inside the cylinder cannot be hit by a second lifting. 7A and therefore do not lift.

The selectors S, which were lifted by the lock by the second lifting device 7A along the SA21 track, are pulled by the pulling lock 9A onto the track SA22 lying below the normal working track SA23 of choice. After reaching the level SA22, the selector S is pushed with its lower part into the cylinder by means of a fixed third lift lock 11A acting by its lateral pressing section radially on the knee SA. Ko212791 the selector 5D flap 5 that has been hit by the second lift lock 7A and the pull lock 9A moves along track 5D22 at an idle level when the second tilt lock 13B is now in operation. Immediately thereafter, said selectors will be brought up to the working path level 5A23, 5B23, 5D23 with the now activated lock 15B.

The selectors 5, which have not been hit by the second lift lock 7A, have a knee 5D in engagement with the second tilt lock 13B, and are forced to protrude through the knee 5A and are lifted on the third lift lock 11A. All the selectors 5 are in this case an elbow 5D in engagement with the first tilt lock 13A and are lifted at the first? lift lock 17A.

The selectors 5 that have been captured by the second lift lock 7A do not pass the needles 25 to the upper needle cylinder. Selectors 5 not engaged with the second lift lock. 7A, since they have been lifted at the third lift 11a, carry the respective auxiliary sinker 21 into engagement with its node 21F with the lock 46. These auxiliary sinkers 21 thus carry the respective working sinkers 23 to the track 23Y and thus transfer the needles 25 to the upper needle needle. The lock 51 has been actuated to guide the nipples 27L of the sinkers 27 of lane 27A21 to receive the needles 25 provided by the selectors 5 that have been raised by the lock 11A. In the remainder, the sinkers 23 are maintained on a track 23Y corresponding to track 23X, as explained above.

In this two-stitch knitting arrangement, all selectors S are lifted by the knee 5A at the first lift lock 17A (since they have all been pushed out and all extended to track 5A23) so that all needles remaining in the lower needle cylinder engage the yarn of second lead F2. eyelet using locks 36, 38.

All of the auxiliary sinkers 21 are gripped by their knee 21F with the latch 50 now activated and, when raised, raise all working sinkers 23 to such a position that they are actuated by their knees 231 by the latch 30 and then by the knees 23H by the latch 52. hooking positions for the needles 25 which have been received by the upper needle cylinder as a result of the release or unlocking by the lock 54A and the lowering which caused the lock 54B, which is now in operation. The lock 56 acting on the knee 23H triggers all the sinkers 23 with the corresponding needles 25. At this point, the sinkers 23 engage the auxiliary sinkers 21 and the selectors 5 that have been raised on the third lift lock HA and are raised. per lane 23Y for; transferring the needles 25 to the sinkers 27 of the upper needle cylinder in the section 27A21 in which the lock 51 has acted, while the sinkers 23 which have been raised to level 23Y are lowered again following the path 23X shown in FIG. 4.

Claims (1)

Circular knitting machine for jacquard knitting with two needle cylinders, double-ended tongue needles, needle sinkers, interleaves and swivel selectors with dial elbows, controlled by the patterning drums of the imaging drum, and two nipples, and two more with three lift-off padlocks, characterized in that the lift-off pads (5A) of the selectors (5) of the first lift-lock (17A), the second lift-lock (7A) and the third lift-lock (11A) are located in the path selectors (5) whose contra-angles protrude out of the cylinder, wherein between the second lift lock (7A) and the third lift lock (11A) there is a pull-down lock (9A) whose pull-down section runs into an idle track (5A2, 5A22) 5A) extending below the ramp level of the protruding nodes (5A) of the selected piglets The torsion (5) to the lift section of the third lift lock (11A), which is provided at the level of the idle track (5A2, 5A22), has a radially bevelled side push-down section to deselect the selectors (5), the lock ring further comprising a selectively removable tilt a lock (13A) for tilting the elbows (5A) of the non-selected selectors (5) to the selected position located in the path of the upper elbows (5d) of the sector before the first lift lock (17A), the second selectively detachable tilt lock (13B) a top selector path (5D) of the selectors (5) and provided with a selector (5) tilting section from a non-selected position to the selected position of its lifting elbow (5A), the first selectively detachable activation lock (15A) provided with a lifting elbow lifting region (5A) from the idle track (5A2) to the work track (5A3), located behind the second lift lock (7A) and in front of the lift unit A command drum lever (1, 3), and a second selectively disengageable activation lock (15B), provided with a lift section for raising the lift knees (5A) from the idle track (5A22) to the work path (5A23), located behind the patterning levers ( 1, 3) of the imaging drum and before the first lifting lock (7A).