DE1029976B - Flat weft knitting machine - Google Patents

Description

Flat weft knitting machines The invention relates to flat weft knitting machines with a tensioning and pulling device that is used to move the double edge bars serving grasping hooks towards the chair needles and away from the chair needles.

Machines of this type are known with a group of coaxial Take-off rollers arranged on a common take-off shaft, with this take-off shaft in both directions rotating haul-off belts on which the double edge bars female hooks are attached, and with drive devices that drive the trigger shaft turn in one direction so that these hooks move towards the chair needles, and which rotate the take-off shaft in the other direction, so that the goods are withdrawn will. after the hooks grip the double edge bars.

The invention is distinguished from the known machines by a coupling device that connects the goods take-off rollers automatically with the take-off shaft clutch. and by a locking device that pulls the take-off rollers from the take-off shaft also automatically decouples, with the take-off rollers against rotation at the same time locked so that the trigger shaft can rotate freely.

The locking device acts on all take-off rollers approximately at the same time a to keep these take-off rollers in a fixed position, and acts at the same time on the coupling device in order to decouple the take-off rollers from the take-off shaft.

The locking device is activated before the trigger shaft is rotated, to move the trigger band hooks to the chair needles.

Another feature is a locking bolt that holds the The trigger shaft detects and stops as soon as the trigger belt hook is in a predetermined position Position, and consists in a release device that the trigger shaft of the stop bar so that the trigger hook has a trigger effect can exercise on the double edge bars.

An adjustment device contains a pulley for the take-off shaft and a recessed arcuate surface present in this disc. It has a a lever attached to a shaft one provided with an arcuate working surface. Cam on which, as soon as it engages in this recessed arcuate surface, the trigger shaft rotates in the predetermined angular position, at the same time the take-off rollers from the Take-off shaft made free and the take-off rollers in a certain angular position be locked.

There is an auxiliary bolt that only activates the locking bolt during of a part of the machine circulation holds out of the working position, wherein the auxiliary bolt is under the influence of a regulating device which rotates a predetermined amount the take-off shaft responds.

The control device only switches the auxiliary bolt for part of one Machine circulation and leads it again to lock the stop bolt back as soon as this locking bolt is disengaged by the release device has been moved with the trigger shaft.

The regulating device that responds to the rotation of the trigger shaft contains a worm that rotates with the output shaft and a rotor that is moved by the worm and in one position the auxiliary bolt and in the other position the bolt used to lock the adjustment device switches.

The runner is slidably supported by a pin attached to the for the adjusting device specific bolt is attached, so that during a lifting movement of the rotor out of engagement with the worm, this latch in the release position is pivoted.

It is known per se, in the case of trigger devices, of the type in question Type of coupling the take-off roller to the take-off shaft. By combining a device that couples the rollers to the take-off shaft and a device, which uncouples the take-off shaft from the take-off rollers so that it can rotate freely, however, the operation of a multi-fountain knitting machine is considerably simplified and thereby a time saving achieved, which leads to a better utilization of the machine leads. To save time when recording. the first row of stitches it is with multi-fountain flat Kuller-. Knitting machines have already been proposed to use a goods trigger, the roller used to hold the goods on a Take-off shaft is mounted so that a relative rotation between the roller and shaft take place can. The roller is temporarily locked in a certain angular position, while haul-off belts, the one at one end with a double-edged bar and at the other end with the Take-off shaft are attached, unwound and moved to after the row of needles pick up the first row of stitches and connect to the fabric nvecks peeling off of the goods, whereupon the shaft is driven to pull off the goods, while the roller stops. The take-off roller is automatically removed from the shaft unlocked when the pull-off tapes have been wound onto the shaft so far, as they were originally settled. It has also been suggested those attached to the pull-off tapes intended to grasp the double edge bars Push hooks towards the needles by mechanical means.

So far, however, no device has been proposed in which at the same time a large number of such take-off rollers by mechanical means the trigger shaft can be locked, which is operated from a certain point will. Such a possibility is very desirable in multi-door machines. All take-off rollers should be locked in a certain angular position at the same time can be used, especially in cases where the ends of the release tapes are for the double edge bars must enter the take-off rollers and out of the take-off rollers be rewound again, for example, to enter into guides that the Guide the trigger necks to the row of needles. z. B. when the trigger hooks the hook for carry the double edge bars and automatically turn the double edges produced will.

The details and the structure of the flat weft knitting machine according to the invention emerge from the description with reference to the drawings, in which an embodiment of the subject matter of the invention is shown. In the drawings, Fig. 1 is a section on a vertical plane between. shy of the ends of a weft knitting machine according to the invention, with individual parts omitted and other parts in section for better illustration FIG. 2 is a plan view of a font of the one shown in FIG Machine after part of a stocking edge worked and a double edge bar is placed on the goods, Fig.3 is a section through part of the shown in Fig.2 Fontur, FIG. 4 is a section along line 4-4, shown on an enlarged scale of Fig. 2, the parts being shown in the position in which they are about to be put on take a pull-off tension on the double-edged bar with the pull-off rollers locked; FIG. 5 is a section similar to FIG. 4, but shows the parts after they have been moved the double-edged bar into an intermediate position or »half-way« position and afterwards. Applying a pull-off tension to the double-edged bar, with the pull-off rollers always are still locked; Fig. 6 shows a section similar to Figs. 4 and 5, but shows the parts in the positions after separating the double-edged bar from the goods and after the unlocking of the take-off rollers as well as after the connection of the take-off rollers 7 shows a section of a double-edged bar along line 7-7 of FIG. 2 and a pusher that is used to move the double-edged bar that has not yet been used has come into engagement with the bar, FIG. 8 a section similar to FIG. 7, in which the pusher is in a position in which it moves the double-edged bar, 9 shows a section along line 9-9 of FIG. 2 through the take-off roller and the locking device, seen in the direction of the arrows.

10 shows a section in the direction of arrows 10-10 in FIG. 2, partially in view, FIG. 11 shows a view corresponding to FIG. 10, with various Parts assume different positions to one another, FIG. 12 shows a partial section Line 12-12 of FIG. 11, seen in the direction of the arrows, FIG. 13 shows a section Line 13-13 of FIG. 2, FIG. 14 shows a section along line 14-14 of FIGS. 2, 15 a section along line 15-15 of FIG. 14, seen in the direction of the arrows, FIG. 16 a section along line 16-16 of FIG. 2, seen in the direction of the arrows, FIG. 17 an enlarged front view of part of the at the upper right side of FIG. 1 lying device, with certain parts -, broken away and other parts for are drawn in section for a better representation, FIG. 18 is a detailed view of the FIG. 17, with various parts taking a position different from FIG. 17 and other parts are shown broken away, FIG. 19 is a plan view of the FIG Fig. 17 shown device, Fig. 20 a single view in the direction of the arrows 20-20 of FIG. 17, FIG. 21 a view corresponding to FIG. 20, in which the parts assume another position, FIG. 22 a view from the left side of FIG. 17 FIG. 23 is a fragmentary view of a portion of FIG. 22, but with the portions a Assume a different position from Fig.22 Fig. 24 is a section along line 24-24 of the 23, seen in the direction of the arrows, FIG. 25 is a section along line 25-25 of FIG Fig. 17, viewed in the direction of the arrows, with some parts omitted, Fig. 26 is a section along line 26-26 of FIG. 25, seen in the direction of the arrows, FIG. 27 is a view corresponding to FIG. 25, but in which the parts assume different positions. FIG. 28 shows a section along line 28-28 in FIG. 27, FIG. 29 shows a section along the line 29-29 of FIG. 17, viewed in the direction of the arrows, the deviating positions various parts are indicated in the dash-dotted outline, Fig. 30 is a view the right-hand side of Fig. 1, with individual parts being omitted and particularly the parts of a weight drive for rotating the trigger shaft in the trigger direction and parts of a spring drive device serving the same purpose can be seen are, with parts of a device that serves to provide an automatic To bring about a change from the weight drive to the spring drive, FIG. 31 is an end view from the left side of Fig. 30, with individual parts shown broken away, to clarify the representation, Fig. 32 is an individual view in Direction of arrows 32-32 in FIG. 31, FIG. 33 is a view along line 33-33 in FIG FIG. 30 on a somewhat smaller scale than FIG. 30, FIG. 34 a view along a line 34-34 of Fig. 30 on a small scale, with individual parts omitted and other parts have broken away.

35 is a section along line 35-35 of FIG. 32, some parts lying in front of the plane of the section being shown with dash-dotted outline, FIG. 36 is a partial view of a part of FIG. 33 on an enlarged scale, individual parts being shown broken away, 37 shows a detailed view of various levers shown in FIG. 36 and parts cooperating with the levers, seen from the right-hand side of FIG. 36, FIG. 38 shows a view of certain parts of FIG. 36 which have a different position in relation to the position assumed in FIG. 36, parts broken away and other parts being shown in section, FIG. 39 a view similar to FIGS. 40 is a detailed view of certain parts shown in FIG. 37 as viewed from the right in FIG. 37.

In the drawings and in the description, only those are for understanding the necessary parts of the invention shown and described in detail.

In Figure 1, a part of a flat weft knitting machine 50 is shown for the production of perfectly shaped goods. The engine 50 includes a frame 51 having a series of outer frames F rigidly connected by a longitudinally extending front beam A, a rear beam B, a bed C, and a table I. The engine 50 also includes a main camshaft S. and a customary and known sample device (not shown) for the automatic switching of certain work processes of the machine. A large number of identical fonts lie on the frame 51, one of which is shown at 52 in FIG. The font 52 contains a series of hook needles 53, and the machine includes a device by which a thread is placed on the hook side of each needle of the font and is kulated between the needles by sinkers and distributed by distributing sinkers D to form loops, which are then can be processed into meshes. Devices of this type are known and are therefore not described in more detail. In general, a perfectly shaped hosiery is worked as a flat piece of fabric and each stocking is started anew. After the thread for producing the first row of stitches of a piece of goods has been placed on the needles of a fontur, the hooks 54 of a double-edged bar 55 (FIG. 2) are brought into engagement with the thread of the first row of stitches. The double-edged bar is placed under withdrawal tension in order to work the first section or the double-edged stocking. After a certain length of fabric has been worked, the double edge is turned, that is, the first row of stitches is brought back onto the chair needles to form a two-layer fabric and to lock the stitches of the first row of stitches. In general, the double edge is turned by hand, but automatic turning is becoming more and more popular. The front door 52 shown contains part of an automatic pick-up and turning device known per se. As is customary with the automatic turning of the double edge, the stitches of the first row of stitches of each font are automatically picked up by the hooks 54 of the double edge bar 55. For this purpose, the double-edged bar 55 is automatically advanced at about the point in time at which the loops of the first row of stitches have been "distributed" by the usual distribution sinkers D, so that the loops are pulled down onto the hooks 54 of the double-edged bar 55 when the Loops are knocked off by the needles from the tips of the sinkers and distribution sinkers.

The device for moving shown in the arrangement shown the double edge bar 55 for taking up the first row of stitches consists of levers 56, whose swingably mounted arms 57 extend from their swing points to the rows of needles extend towards, the end of each arm 57 facing away from the levers 56 bifurcated is (FIG. 2) and carries a pusher 59 which lies over a rail 58. For every Fon.tur two levers 56, two arms 57, two pushers 59 and two rails 58 are provided. The pushers 59 slide on the tops of the rails 58. Between the ends of the outer fork arms 57 and the outer vertical sides of the rails 58 go the Pusher 59 by slide 49, which is in contact with the vertical outer surfaces of the Rails 58 (Fig. 16) lie and inwardly turned flanges 48 on their lower ones Have edges that extend in along the rails 58 extending horizontal grooves 47 intervene. The slide 49 thus prevent the arms from trying to move 57 to lift the pushers 59 off the rails 58. The slide 49 also have approaches 46 attached to the upper edges along the parts closer to the row of needles are. The lugs 46 are bent over so that they protrude laterally from the slides 49 and above the ends of the double-sided bars 55, thereby causing the double-sided bars to tip over is prevented when advancing towards the needles. The ones at the ends of the Forks located on lever 57 have flat heads with one head on one side the rail 58 and the other head touches the slide 49 in order to close it laterally to prevent the pushers 59 from moving along the rails 58. The pusher 59 each The pair of levers protrude laterally against one another over the inner fork arms of the levers 57 and engage holders 99 of parts 60 which are located near the ends of the bar 55 (Fig. 2) are attached. The holder 99 of each part 60 (Figures 4-8) comprises resilient a substantial portion of the peripheral surface of the pusher 59 and forms a releasable Connection between the pusher 59 and the part 60. At desired time periods the levers 56 are rotated so that they move the pusher 59 towards the row of needles, to place the bar 55 against a stop 187 so that the double edge hooks 54 lie between the needles and can pick up the loops of the first row of stitches. After these loops have been taken up by the hooks 54, the levers 56 are in opposite directions Direction rotated to move the pusher 59 away from the row of needles, as a result of the resilient connection between the pushers 59 and the holders 99 also the Bar 55 is pulled off, so that the hooks 54 with the mentioned loops in engagement come and exert an initial tension on the goods until the actual pull-off device comes into effect. The continued movement of the levers 56 to their rest position lifts the pusher 59 out of the holders 99. The shaft is used to rotate the lever 56 44, at which the levers 56 are attached. The shaft 44 is around the desired angle at certain times by a device automatically rotated, which is known per se and does not form part of the invention.

In the arrangement shown, the first to operate includes trigger device for each Doppelrandbarre 55 a discharge belt 61 (Fig. 2), which with one end at the Is attached to the middle of the bar. The other end of each belt is with a drum 62 connected, which is connected to an auxiliary shaft 63, which is carried by a weight (not shown) which is at the left end of the machine as seen from a viewer standing in front of the row of needles sits.

After work has started, the main drive shaft 65 is first set in a certain angular position for purposes described later and is then rotated in order to advance the hooks 64 so that the goods can be pulled off by means of the double edge rods 136. Two hooks 64 are provided for each font. The device for determining the initial position of the shaft 65 contains a disk 66 seated on the shaft 65 (FIGS. 22 and 23) which has a recessed arcuate surface 67. A cam 68 provided with an arcuate work surface 79 can be brought into alignment with surface 67. The cam 68 sits on a lever 69 which is fastened on the shaft 70 provided with a hand lever 75. Cam 68 has a slot 71 that extends generally radially to shaft 70. Pins 72 fastened on the lever 69 pass through the slot 71 (FIG. 24) so that the cam 68 can slide somewhat on the lever 69 approximately in the radial direction towards the shaft 70 as soon as the cam 68 disengages from a disk 66 above Position to a position below the disc 66 shifts. A spring 73, which is connected to the cam 68 and to the one pin 72, resiliently presses the cam 68 outwardly away from the shaft 70. A spring 74 (FIG. 22) tries to rotate the shaft 70 in such a direction that the lever 69 is displaced from the position shown in FIG. 22 to the position shown in dash-dotted outline in FIG. 29, so that the cam 68 is generally below the position shown in Figure 23. If the lever 69 and the cam 68 are to be moved from their position located below the shaft 65 and the disk 66 and the shaft 65 is to be set in a certain angular position, as shown in FIG. 23, the handle 75 is turned to the left from the dash-dotted outline position shown in FIG. 29 to raise the cam 68. In general, the disk 66 is not in this predetermined position. When the cam 68 is raised, the upper edge 76 of this cam will strike the circular part of the disc 66 so that no further movement of the handle 75 can take place. The parts are held in this position, furthermore, and the shaft 65 is rotated clockwise by hand until the corner 76 meets the surface 67. With continued movement of the hand lever 75, the shaft 65 is then rotated until it assumes the position shown in FIG. The take-off rollers 77 (FIGS. 9 and 10), which at this point are releasably connected to the shaft 65, are also adjusted with the shaft 65 for the purposes set out below.

In order to decouple the delivery rollers 77 from the shaft 65 and to lock the delivery rollers in the position which each delivery roller assumed when the shaft 65 was brought into this predetermined position, a group of arms 78, one of which is an arm, is seated on the shaft 70 is shown in Figures 9 and 10. Each arm carries a wedge or a cam 80 which enters a longitudinal slot 81 of the take-off roller 77 as soon as the shaft 65 is in said predetermined position. The rollers 77 must therefore be held so that each slot 81 is in a certain angular position so that the wedge 80 can enter the slot. For this purpose, a locking device 82 is provided between each take-off roller 77 and the shaft 65. Each locking device 82 contains a bolt or bolt 83, which is partially in an outwardly pressed groove 84 of the housing part 87 of the take-off roller 77 and partially in the cylindrical outer section of a face plate 88 to which the housing 87 is fastened by means of rivets or the like. The disk 88 has a central section which serves as a bearing for the take-off roller 77. Each bolt 83 is pushed outwards, ie to the left as seen in FIGS. 10 and 11, by a spring 85, which consists of a U-shaped bent wire loop (FIG Latch 83 provided foot 89 is supported, while the ends of the spring 85 comprising the shaft 65 are fastened in the disk 88. The outer end of the bolt 83 enters, when the bolt can move freely under the influence of the spring 85, in a slot 86 of an annular flange 90 (FIG. 12) which protrudes from a cylinder 91 to the outside. The cylinder 91 lies for the most part within a cylindrical recess 92 which protrudes axially to the shaft 65 from the outer surface of the disk 88.

The cylinder 91 is on the outer race of a ball bearing 93 placed so that the outer ring and cylinder 91 can rotate together. The inner race is pressed onto the shaft 65 so that the inner race rotates with shaft 65. The flange 90 of the cylinder 91 is provided with pins 94 occupied, which protrude parallel to the shaft 65 from the flange 90. To the cylinder 91 to connect to the shaft 65, the pins 94 engage in segment grooves 95 of the peripheral edges a washer 96 which is mounted on the shaft 65 and engages with the shaft rotates (Fig. 13). Springs 97 lie between pins 94 and those on part 96 fixed pins 98 so that a resilient connection between the cylinder 91 and the disk 96 consists. The springs 97 lie) in cutouts 193 of the part 96. The grooves 95 have bottom surfaces 194 and end walls 196, of which: the end walls limit the relative movement between the cylinder 91 and the disk 96. With this Arrangement can be the angular position between the part 96 and the cylinder 91 or between the part 96 and the take-off roller 77 when this roller locks with the cylinder 91 is to be changed to a limited size so that the springs 97 are each small Difference in length on the different working fountains of the machine The meshes formed can equalize without reducing the tension in the various Fonturen located pieces of goods is changed significantly.

The latches 83 have a slot 100 to receive one of the wedges 80. As can be seen from FIGS. 9 and 10, the housing 87 of the take-off rollers and the disk 88 is provided with slots in radial alignment with the slot 100, so that the wedge 80 can penetrate far enough radially into the interior of the roller 77, an unlocking movement of the To effect bolt 83. This happens, as soon as the handle 75 in the counterclockwise direction, seen in FIG. 22, in its limit position is rotated.

Each arm 78 (Fig. 9) is mounted on the shaft 70 and is in the Direction in which its wedge 80 causes an unlocking of the take-off roller, by a with the shaft 70 existing resilient connection moves, which includes a spring 101, between a pin 102 fixed on the arm 78 and a hook 103 of a Ring 104 is located, which is attached to the shaft 70. Therefore, when the take-off rollers are not in such a position that the tips of the wedges 80 in the slots 100 of the bolt 83 can enter and the wedges against the take-off rollers there is no disadvantage due to the continued rotation of the shaft 70, because the springs 101 give way. However, as soon as the rollers are in the required angular position have been rotated, the springs 101 push the wedges 80 into the slots 100 to to unlock the take-off rollers. Will the shaft 70 in the opposite direction rotated to pull the wedges 80 out of the take-off rollers, so b. ° a stirs up the ring 104 seated stop 105 a pin 106 seated on the lever 78, so that this lever is inevitably moved with the shaft 70.

If the hand lever 75 is turned counterclockwise, as seen in Figs. 22 and 23, moved into its limit position, the shaft 70 not only displaces everyone Wedge 80 in its limit position in which the wedges remove the take-off rollers from the shaft 70 and lock the take-off rollers against rotation, but the hand lever 75 also moves the lever 69 into the position shown in FIG. 22 in which the Cam 68 has no contact with the curved groove 67. During this final movement of the Hand lever 75 and shaft 70 is at the extreme and lowermost ends of Arm 69 seated wedge 107 moves upwards so that it actuates a latch that holds arm 69 and shaft 70 in place for a period of time while the take-off rollers are to be kept in the locked position. This bolt intended for the shaft 70 (Figures 17, 18 and 19) contains a vertical latch lifter 1108 that rests on a bolt 109 is rotatable, which is provided above and at right angles to the shaft 65. Of the Bolt 109 is fixed in a fixed part of the machine frame. Of the Lever 108 has a groove 110 between its axis and its lower end an undercut inclined surface 111 provided at the upper end of the groove, which is a supplement to the wedge surface 107 and from this wedge surface 107 when it is raised is detected so that the lower end of lever 108 swings against lever 69. Of the Cutout 110 in the lever 108 also has a shoulder 112, which acts as a latch for the Lever 69 is used. As soon as the lower end of lever 108 moves towards lever 69 due to the engagement of the wedge surface 107 and the undercut surface 111 of FIG Cutout 110 moves, the shoulder 112 lies under the lever 69. When the pressure on the hand lever 75 subsides, the spring 74 connected to the lever 75 pulls the Shaft 70 back so that the lever 69 rests on the shoulder 112 (Fig. 17) and as a result, the shaft 70 is locked in the position shown in FIG.

As soon as the rollers 77 are uncoupled from the shaft 65 in the manner described and the lever 75 and the cam 68 are locked in the position shown in FIG have been, so that the cam 68 is not seated on the shaft 65 disk 66 disturbs, the shaft 65 can be rotated opposite to the direction in which the When the goods are withdrawn, the shaft revolves until a shoulder 115 is on the right End of the shaft 65 seated disc 116 (Fig.20 and 21) in engagement with a drive pawl 117 of a pulley 118 comes on the shaft 65 immediately inside next to the pulley 116 is stored. The pawl 117 is rotatably seated on the pulley 118. A spring 119, the end of which with the latch 117 bz «-. are connected to the disc 118, urges the pawl 117 against the disc 116 so that the pawl 117 the shoulder 115 at the clockwise rotation of shaft 65 (Fig. 20). When the latch engages and the shoulder, the disc 118 rotates with the shaft. The circulation of the N '@' elle 65 and the pulley 118 winds a rope 120 on the pulley 118, the one end connected to the pulley 118 and the other end to a weight W connected is. After the rope 120 has been wound a certain length, rotates the weight W of the shaft 65 during one needed for working a stocking Period in the withdrawal direction. To wind the rope 120 onto the sheave 118, the shaft 65 is rotated by a slot 1121, which is fixed to the shaft 65 with a Gear 122 can be engaged. The pinion 121 (FIG. 17) is seated the inner end of a long hub 123 which rotates on a support shaft 124, the left end, seen in Fig. 17, is attached in the machine frame. Di-; Hub 123 not only rotates on the axis 124, but can also be axially to the axis move to one place. the one at the right end or the free outer end of the axis 124 seated head 125 is determined. The hub 123 is at its inner end and at its outer end depressions 126 and 127, respectively. A surrounding the axis 124, spring 128 lying between a gesture part 129 and the surface of the recess 127 usually pushes the hub 123 toward a location where the head 125 the Inner surface of the recess 126 contacts. This position of the parts is shown in FIG. 17 and is that position in which the pinion 121 is not in engagement with the gear 122 is. The hub 123 is also provided with a crank arm 131, on which a handle 130 is rotatably mounted. To wind up the rope 120, is on the handle 130 of the crank 131 seated on the outer end of the hub 123 Pressure is applied so that the teeth of the pinion 121 are in engagement with the teeth of the Gear 122 step. Then the crank is rotated about the shaft 65 and the pulley 118 to rotate in the manner described.

At the time when the rope 120 is wound and its weight W is raised, the shaft 65 is rotated in a direction which is opposite the direction of rotation when the goods are withdrawn. This fact is shown in the Arrangement used to the hooks 64 after the needles 53 in a position move, in which the hooks 64 grasp a double edge rod 136 and pull it off. to for this purpose each hook 64 is at the end of a semi-rigid strip-like Part 133 attached, the openings 142 with round protruding heads a Group of spaced-apart pins 140 engaged by the cylinder 91 can be carried. This arrangement results in a sprocket-like one Drive for winding the strips onto the cylinder 91 (for moving the hooks 64 in the withdrawal direction) and for unwinding the strips from the cylinder 91 (when advancing the hook 64 in the position shown in Fig. 14). Of the approach 92 of the disk 88 and the housing 87 of the take-off roller 77 are provided with an opening 141 (Feg. 1-1) through which the strip 133 during winding and unwinding can pass through. The washer 88 also has a shoulder 137 and a rivet-like one Protrusion 138 (Fig. 10) near opening 141 to allow unwinding of the strip 133 and the openings 142 in the strip engage the pins 140 as soon as the strip is wound onto the cylinder 91 and the strip is not excited.

Around the strips 133 when the hook 64 is advanced into the position shown in FIG Position to guide is one for each strip from the rail 58 by means of plates 139 carried guide 143 is provided. As shown in FIG. 15, the guide 143 has a Flat, box-like shape in cross-section, with a slot in the top of the guide 144 has for the passage of the hook 64. Each strip 133 is in the transverse direction rolled so that it is curved in Ouerrichtung after its unwinding from the cylinder 91 or curved shape. The interior of the guide 143 offers in the vertical direction enough space for the curvature of the strips. The curvature of the strips stiffened the strips against pressure in their longitudinal direction. The strips shown exist from Bl. ° ch. However, any material can be used: that has the necessary Pressure on the hook 64 can be transmitted.

So that the hooks 64 do not move too far when the hand crank 130 is turned the row of needles are advanced out and thus above all the hooks 64 with the If the needles 53 do not come into contact, the hook 64 will move against the needles interrupted at a certain point. For this purpose, the shaft 65 carries a Disc 145, which has a right-angled or U-shaped detent 146 (Figs. 25 and 27). The detent 146 has a certain position. Reach the hook 64 a certain Place, an upwardly directed locking finger 147 engages in the detent 146, to which the end of a lever 148 located on the right in FIG. 25 is converted. Of the Lever 148 is rotatably mounted on shaft 70 near its center. A spring 161 (Feg. 19) acts on the lever 148 to press the finger 147 into the detent 146 and thereby to lock the shaft 65 in the position shown in FIG. So that the lever 148 does not lock the shaft 65 at undesired times, the lever 148 is used for usually locked so that its finger 147 is held out of engagement with the detent 146 will. An auxiliary locking lever 149 is provided for this purpose (Figs. 25 to 28), which oscillates in a vertical plane at right angles to the plane of movement of lever 148. Lever 149 hangs down from a hub 150 that rests on the shank of a screw bolt 151 is mounted, its fastening in a plate carried by the machine frame 152 (Figs. 19 and 22) takes place. If the finger 147 is in the detent 146, the Lever 149 against the side of lever 148 by a spring 155 (Fig. 19) in the in Fig. 26 held in the manner shown. The lever 148 is used to release the shaft 65 moved in the manner described below, the lever 149 swings into the in the position shown in FIGS. 27 and 28, in which the lever 148 is locked in the rest position is.

In order to switch the movements of the auxiliary locking lever 149 and to bring these movements into harmony with those of the shaft 65 and the hook 64, the spring 155 forms part of a switching device 156 to which the lever 108 also belongs. One end of the spring 155 engages the upper end of lever 108, while the other end is anchored to a pin 158 (Figs. 17 and 18) which is firmly seated between the ends of a lever 159. The lever 159 is connected at one end to the hub 150 (Fig. 22), to which the auxiliary locking lever 149 is also connected. The device 156 also contains a rotor 160 designed as a disk, which sits on a pin 157 and is able to slide in the longitudinal direction of this pin or this shaft. One end of the pin 157 is attached to the locking lever 108, while the other end is free and is guided in a channel 163 located at the lower right corner of plate 152 (Figs. 18 and 25). If the lever 108 is in the position shown in FIG. 18, in which the arm 69 is originally locked, the free end of the pin 157 is raised and the rotor 160 is kept out of contact with a worm 164 seated on the shaft 65 which the rotor 160 is moved along its shaft 157 for the following reasons. At the beginning of a cycle, the parts in question assume the position shown in FIG. 18, in which the lever 108 and the shaft 157 are rotated as far as possible in the counterclockwise direction. Here, the rotor 160 lies above the left end of worm 164 and extends into a detent 165 located in the plate 152. However, if the shaft 65 is rotated in such a position that the cam 68 can enter the recessed arcuate surface 67 To bring the shaft 65 into the desired position, and if the arm 69 is then raised, the wedge 107 rotates the lever 108 into the vertical position, whereby the shaft 157 is made horizontal. Here, the disk 160 engages in the worm flight of the worm 164. The parts 108 and 157 are then locked and remain in this position for a period of time as the shoulder 112 on lever 108 has engaged the underside of arm 69 as described. The disk 160, which engages the flight of the screw 164, is seen from left to right, as seen in Figs. 17, shifted by the worm 164 as soon as the shaft 65 is rotated in order to bring the hooks 64 towards the needles 53. At this point in time, the auxiliary locking lever 149 is in the locking position shown in FIGS. 27 and 28, the locking finger 147 is in the position in which it does not prevent the rotation of the shaft 65, and the lever 159, which is firmly connected to the hub 150, takes it the position shown in FIG. As soon as the disc 160 moves along the screw 164, its upper edge contacts the lower end of lever 159 and places the lever in the position shown in FIG. 17, whereby the lever 148 is released from the auxiliary locking lever 149. This occurs just as the hooks 64 approach the ends of their trajectories after the needles. As a result, the finger 147 rises into locking engagement with disk 145 and almost immediately engages the detent 146, whereby the shaft 65 is stopped. At this point in time, the locking levers 148 and 149 are in the position shown in FIGS. 25 and 26, while the hooks 64 assume the position shown in FIG.

In the meantime the machine has been working with double-edged goods. As soon After the hooks 64 have moved after the needles, a double-edged rod 136 will appear the top of the goods and the ends of the double edge rod are placed in the in the rails 58 located slots 166 inserted, as a preparatory step to capture the double edge rod through the hook 64 and also as a preparation for Turning the double edge. The slots 166 guide the double edge rod during one Part of its Ahzugsb: movement, as shown in FIGS. 4, 14 and 15. To the picking To facilitate the double-edged bars into the slots 166, a device is made U-shaped parts 170 (Fig. 15) used, which consist of the legs 171 and 172 and consist of a connecting web 173. The rails 58 of each font have in the mutually directed perpendicular side walls oblique slots 174. The Legs 172 lie in slots 174, while legs 171 are opposite touch the vertical sides of the rails 58. The rails 58 have protrusions 175, the lower end faces of which are perpendicular to the edges of the slots 174. Everyone Web 173 touches the lower face of a projection 175 to the movement of the Part 170 in its slot 174 to limit upwards. Usually will each part 170 is urged upwards in its slot 174 by a compression spring 176, which surrounds the shank of a screw bolt 177, which by a in the web 173 located opening passes through and is screwed into projection 175 (Fig. 15). Each spring 176 is supported at one end against the bottom of one in the web 173 located recess and with the other end against the head of its screw bolt 177. The upper end of each leg 172 of the U-shaped parts 170 is designed as an inclined surface 178 formed so that a latch is formed at the upper end of each slot 174, in which a double edge rod 136 can be easily inserted. Will be such a staff pressed downward, the spring 176 is compressed so that the ends of the Double edge valleys run downwardly along the edges of the slots 174 into the longitudinal slots 166 move in. Each leg 172 of the part 170 is provided with a slot 179, around a connecting slot between those located on each side of the part 170 Sections of the slot 166 to create. Once there is a rod 136 in the slot 166 and the parts 170 are released by the springs released from the rod 136 176 has been returned to the positions of FIGS. 14 and 15, the rod can moved the desired distance towards the hook 64. In Figs. 4 and 14 the rod lies in the slot 179 of the U-shaped part 170 just before the hook 64: While the hooks 64 and the double edge rods 136 in the FIGS. 4 and 14 position shown have been brought, the machine has a part of the double edge worked. Is the machine with a known double edge turning device equipped, so this double edge turning device is usually soon after Insertion of the double edge bars actuated to remove the double edge bars from the which they had already achieved to move back a little towards the needles and the double edge bars in this intermediate position or "halfway" position during hold for a certain period of time. The positions that hold the 64, the bars 136 and the double edge turning parts just before moving the bar 50 into the aforementioned Assume intermediate positions are shown in FIG. The positions of the Parts after the arrival of the bar in this intermediate position is shown in FIG. 5. How can be seen, the double edge rod is held by the parts 170 on one level, which lies below the level of the double-edged bar hook 54. As soon as the double-edged bar is moved backwards towards the row of needles, move the double edge bar hooks the edge of the goods attached to them. above the double edge rod, form in the Goods in preparation for turning the double edge a fold and pull at the same time the stitches of the first course away from the hook ends of the hooks 54, namely against lugs 185 which are on the shafts of the hooks 54. after the Intermediate position is reached, "- the bars 55 are locked in this position, until the double edge is turned over.

The movement of the double-edged bar 55 to the intermediate position takes place through a partial rotation of the shaft 44. The shaft 44 carries a cam 180 (Fig. 25 and 27), which can act on the lever 148. As soon as the shaft 44 is rotated and the bars 55 are moved toward the row of needles, the cam 180 rotates from the position shown in Fig. 25 to the position shown in Fig. 27 and moved while the lever 148 to remove the finger 147 from the detent located in the disc 145 146 to pull out, so that the trigger shaft 65 as a result of the loaded by the Rotates rope 120 exerted torque. As a result, the two take-off belts 133 become tensioned to pull the hooks 64 forward away from the row of needles and the hooks 64 to be brought into engagement with the double edge rods 136. After the item of goods after the beginning the movement of the hooks 64 has continued (the shaft 44 and the double edge bars 55 have maintained their position in the meantime), take the Hook 64 the position shown in Fig. 5, in which the double edge rod is located on the opposite side of the bar 55 from the row of needles, the Stitches of the first row of stitches pulled away from the double edge hooks 54 to the front and are against approaches 185. As soon as the double edge is finished, shaft 44 is rotated to push bar 55 toward the needles until the Bar meets a stop 187 (Fig. 3). At this point the hooks are in place 54 furthest between the chair needles. While the hook 54 is in this position the first row of stitches is transferred back to the chair needle. The machine then continues to work, with the withdrawal of the item by the shaft 65 takes place. The pull-off belts 61 are released from the D, oppel'-ra.ndbarren 55, the Ingots unhooked from the goods and in their foremost position in contact with the Bumpers 59 brought. The pull-off belts 61 are then again attached to the double-edged bars fastened in the usual way so that these bars are ready for a new work cycle are.

After the pull-off belts 61 have been released, the pull-off tension is applied to the goods by the shaft 65 via the rope 120 until the heaps 64 have returned to the position in which the hooks 64 above the pull-off rollers 77 (Fig. 6) lie. At this time, the take-off rollers 77 are also released from the wedges 80 to rotate with the take-off shaft 65. For this purpose, the lever 69 is released from the locking shoulder 112 by the device 156. While goods were being worked on the machine, the withdrawal of which took place under the action of the rope 120, the shaft 65 has rotated in the direction of arrow R (FIG. 27), and the rotating taste 164 has the disc 160 to the left, as seen in FIG Fig. 17, shifted. At the point in time at which the hooks 64 reach a position close to the take-off rollers 77 or shortly before they reach this point, the shaft 157 and the lever 108 are pivoted into the position shown in FIG. This is done by a block 186 which is in the flight of the screw 164 at a location near the left end as seen in FIG. As soon as the disk 160 approaches the left end of the screw 164, the block 186 hits the disk and lifts the disk 160 into the cutout 165, as FIG. 18 shows. The lever 108 then releases the lever 69 and the spring 74 swings the shaft 70 to move the lever 69 downward. At the point in time at which the lever 69 is released from the shoulder 112 located on the lever 108, the cam 68 is in its uppermost position and the disc 66 is approximately in the position shown in FIG. When the lever 75 is rotated to the right by the spring 74, a lower right-hand corner provided with a bevel 188 (seen in FIGS. 22 and 23) of the cam 68 lies against the outer surface of the disc 66. The disc 66 then presses against the cam 68 in such a direction that the 1, Tocken is moved against the tension of the spring 73 out of the path of the disc when the shaft 70 rotates the arms 69 and 78 downwards to pull the wedges 80 out of the take-off rollers 77, therewith Not only can these rollers be unlocked and rotate relative to the take-off shaft 65, but also the latches 83 are released so that these latches 83 can enter the slots 86 in the flanges 90 of the cylinders 91 as soon as they are in alignment with the slots stand to lock the rollers to the take-off shaft 65 so that they turn with them.

It can happen that the tensions in the various fountains items are not always the same, due to small deviations in the mesh length of the various pieces of goods. As a result of these tension differences not all of the latches 83 are in alignment with their associated slots 86 when the latches 83 are released by the wedges 80. In these cases it will be the latches 83, which do not oppose their associated slots 86, against the Flanges 90 are pressed by their associated springs 85 until the slots 86 engage the latches 83 opposite, whereupon an insertion of the bolt 83 into the slots 86 by the springs 85 takes place.

The device to compensate for these changes in voltage is from the 10, 11 and 13 can be seen. The disk 96 is on the shaft 65 as shown attached. The pins 98 sit on the disk 96. The pins 94 and consequently the flange 90 and the cylinder 91 to which the pins 94 are attached influenced by tension springs 97 connecting pins 94 and 98. The disk 96 has grooves 193 for receiving the springs 97. The pins 94 on the flange 90 of Cylinders 91 are attached, protrude into the cutouts 95, each of which has a cutout in the part of the disc 96 on the sides of the grooves 193 is located. When the wave 65 and thus the disks 96 by engaging in the detent 146 of the disk 145 Latch fingers 147 are held, there is no tension on the pull-off belts 133, so that the tension springs 97 are pulled together to the pins 94 against the in the Circumferentially leading walls of their cutouts 95 and closer to the pins 98 (Fig. 13) to hold. However, as soon as the shaft 65 is released to move in the withdrawal direction to rotate and withdraw the goods, causes the occurring in the withdrawal belts 133 Withdrawal tension so that the parts 90 and 91 run behind the disks 96. Since that Torque of the shaft 65 is able to overcome the tension of the springs 97 the pins 94 consequently against the trailing walls 196 i of the cutouts 95 or pulled to a position near these walls.

It is desirable, e.g. B. after the production of the double edge and when Beginning of the reduction in order to achieve a lower tensile stress, the drive of the Pull-off shaft 65 from the weight hanging on the rope 120 towards a spring device transferred, preferably before the time. at which one rotation of the shaft 70 takes place in order to pull the wedges 80 out of the take-off rollers. In the illustrated Execution, the pull of the weight attached to the silk 120 is used to to effect the transfer or change. It is also necessary that between the Rope and the shaft existing drive connection to cancel the pull-off effect to use for the change or the transfer and also to have the certainty that that the withdrawal tension is not applied twice as soon as the spring device their work begins.

For this purpose, a device 205 is provided which contains a support shaft 206 fastened to the machine frame and an arm 207 which is fastened to the support shaft 206 by means of adjusting screw 208 (FIG. 37) or by means of another device. A lever 209, which is mounted on the side of the pulley 118 opposite the hand lever 130 and in front of the arm 207, as seen in FIGS. 36, 38 and 39, is mounted to swing on the support shaft 206. A spring 210 is located between the pin 211 seated on the lever 209 and the pin 212 seated on the lever 213. The lever 213 is also mounted on the support shaft 206 (FIG. 30) and can execute a limited oscillating movement. The spring 210 attempts to rotate the arm 209 counterclockwise as viewed in FIG. 36 and usually holds the arm 209 in the vertical position shown in FIGS against an adjusting screw 215 which is fastened in a part 216 protruding from the side of the lever 213. At the lower end of the arm 207 an upwardly extending locking lever 218 is rotatably mounted on a beam 217, the shoulder 219 of which is located on the side which is directed towards the projection 214 seated on the lever 209. A lever 220 is rotatably mounted near its center at the upper end of lever 218 and searches for a spring 221 (FIG. 40) which is anchored between a pin 222 provided at the lower end of lever 220 and a pin 223 sitting on arm 207 pull lever 218 clockwise as viewed in FIG. 36 to push protrusion or shoulder 219 against protrusion or shoulder 214. A pin 224 attached to lever 218 limits the rotation of lever 220 about its bearing so that the tension from spring 221 is transmitted to lever 218. A pin 225 seated on the lever 218 also limits the movement of the lever 218 relative to the spring 221 in that the pin 225 rests against the edge of the fixed arm 207 (FIG. 40). The upper ends of levers 209 and 220 are tapered in opposite directions.

The pulley 118 carries a horizontal pin 226 which extends above the plane of the levers 209 and 220 and, as it moves, engages the upper ends of these levers as soon as the levers are in the positions shown in FIG. If the pulley 118 is rotated counterclockwise, as seen in FIG. 36, in order to wind up the rope 1120, the pin 226 presses the end of the lever 220 down, because the spring 221 allows the lever 220 to rotate. The position of pin 224 also permits rotation of lever 220 in the required direction to allow pin 226 to go over lever 220. When the pin 226 engages the lever 209 in the counterclockwise rotation, the lever 209 also rotates resiliently on the axis 206. If the lever 209 assumes the position shown in FIGS Shoulder 219 under protrusion 214 to lock lever 209 in the position shown in FIG. 36 in which its upper end lies below the track of pin 226. If the direction of rotation of the pulley 118 and thus of the pin 226 is then reversed, as is the case when the cable 120 supplies the pull-off tension, the pin 226 is pushed away over the upper end of the lever 209 without affecting the lug 209. However, pin 226 engages a location at the top of lever 220. Lever 220 cannot freely rotate on its pivot to allow pin 226 to pass because it rests against pin 224 seated on lever 218. If the pin 226 moves past the lever 209 during the first revolution of the pulley 118 in the withdrawal direction after winding up the S2il ° s 120, the pin 226 does not affect the lever 209, but hits the beveled surface of the lever 220 and thereby moves the lever 218 in the counterclockwise direction, seen in FIGS. 36, 38 and 39, in order to pull the shoulder 219 out from under the projection 214. Lever 218 moves counterclockwise far enough to allow pin 226 to go over the head of lever 220 as shown in FIG. The lever 220 is then pulled back into the position shown in FIG. 39 by the spring 221. As soon as the shoulder 219 was pulled out from under the projection 214, the lever 209 jumped into the vertical position shown in FIG. The parts then assume the position shown in FIG. The pull on lever 209 is transmitted to lever 213 through screw 215 and head 216 and is sufficient to move lever 213. This lever 213 can execute a limited angular movement in the counterclockwise direction from the position shown in FIGS. 31 and 33.

The counterclockwise movement of lever 213 pushes, as is known per se, a rod 227 from the position shown in FIGS. 33 and 36, in which the rod 227 is free of a square 228, into the position shown in FIG. 39 , in which a detent 229 provided at the upper end of the rod 227 detects the square 228. The arrangement of the lever 213 provided for this purpose can be seen in FIGS. 30 and 33, from which it can be seen that the lever 213 lies on the same axis as the lever 209, the movement of the lever 213 being limited by adjusting screws 232 and 233 , of which, depending on the direction of movement of the lever 213, one or the other adjusting screw hits against a fixed frame part 200 (FIG. 31). A tension spring 234 usually holds the lever 213 in such a position that the set screw 232 lies against the part 200. The lever 213 has at its lower end a guide 235 (FIG. 30) in which the rod 227 slides. As soon as the adjusting screw 233 of the lever 213 is pushed against the section 200 by the lever 209, the rod 227 is moved in order to grasp the square 228. The square 228 is, as shown, fastened in the outer end of a lever 230 which is fixed on a shaft 231, which in the example is the usual needle press shaft of the machine.

The one triggered by lifting the rod 227 as described below The process is shown in FIG. 30. The rod has 227 near its lower end a joint head 236, so that the part of the rod located above the joint 236 is able to swing towards the square 228 and away from the square. The one below The part 237 of the rod 227 lying on the joint 236 moves vertically in a guide sleeve 238, the one on the front support A of the machine frame by means of a screw bolt 240 is held. The lower end of part 237 engages and holds for a desired time a ring 241 which sits on a shift rod 242 lying horizontally. The lower The end of the section 237 is provided with a cutout 243 through d -, n one vertical surface or shoulder is created against which the face of the Ring 241 is applied. The rod 242 forms part of the machine's pattern device and is urged to the left, as seen in Fig. 30, by a spring (not shown), while the temporary movement to the right, seen in Fig. 30, is made by the iHuster device occurs from the main chain or from an auxiliary chain, but none of them Chain is shown as these chains are known in the art. In the one here As shown in the arrangement shown, the sub-pattern chain first moves the rod 242 to the right into the position shown, in which this rod is automatically driven by the ring 241 and the shoulder 243 is locked. If the shaft 231 is rotated, the lever 230 to rotate counterclockwise as seen in Fig. 39, the rod 227, da the upper end of the rod 227 is in engagement with the square 228 (Fig. 39), lifted and is thereby the rod 242 free, which thereupon by its spring is moved to the left.

The movement of the rod 242 to the left actuates a device which switches on a spring drive 265 for the shaft 65 as a replacement for the weight drive provided by the cable. In order to switch on this substitute device, the arrangement shown contains an angle lever 245 which is mounted near its center on the machine frame and has a vertical arm 246, the end of which lies between two rings 244 fastened on the rod 242. The movement of the rod 242 moves the angle lever 245 and thereby moves its approximately horizontal arm 247, which loosely encompasses a vertical rod 248 with its head end and lies between two rings 249, so that the movement of the angle lever 245 of the rod 248 makes a vertical one Movement is granted. The upper end of rod 248 is shown in detail in FIG. The upper end of the rod 248 is swingably connected to an arm 250 which is mounted on the take-off shaft 65. The arm 250 has two sections 251 and 254 serving as switching cams. The cam 251 switches a pawl 252 (FIG. 31) which is swung back and forth by the spring drive 265 so that, if desired, it can set the shaft 65 in the withdrawal direction in rotation by engaging the pawl 252 in a switching gear 253 (FIG. 4) seated on the shaft 65. The cam 254 controls an arm 255 and thereby switches a rotatably mounted angle lever 256, the projection 257 of which actuates a retaining pawl or several retaining pawls 258 (Fig. 34), which act on the switching gear 253 to turn the trigger shaft 65 against a triggering direction if desired Keep rewinding. The cams 251 and 254 are positioned relative to one another so that the pawls 258 engage the switching gear 253 when the shaft 65 is shifted in the withdrawal direction by the pawl 252, in order, as mentioned, to prevent the shaft 65 from rotating in the opposite direction.

As long as the horizontal shift rod 242 through the rod 227 is held to the right (FIG. 30), the vertical bar 248 is located in their lower position, and the switching cams 251 and 254 '' - earth in the position held, in which the pawl 252 and the holding pawl or the holding pawls 258 are ineffective. The pawls are held in the inoperative position by that a pin fastened on the pawl 252 lies on the tip 260 of the cam 251, which lifts the pawl 252 from the gear 253, while one is attached to the arm 255 Pin 261 is on another dome 262 on part 254, so that the projection 257 against the underside or the undersides of the retaining pawl or the retaining pawls 258 is pressed to remove the pawls counterclockwise from contact with the To push out gear 253. The pin 259 extends through the pawl 252 and protrudes on the other side as handle 290 (Fig. 32). One between Spring 263 engaged with handle 290 and arm 266 urges pawl 252 against the gear 253, while one between the pawl or pawls 258 and a fixed bearing connected spring or springs 264 the pawl or pawls 258 urges or urges against gear 253. The shaft 65 can for the purpose of adjustment or the like. Can be rotated freely, except when driven by the spring drive is or is under the action of the weight W. As soon as the rod 227, however is raised to release the rod 242, lifts that intended for the rod 242 Spring rod 248 so that arm 250 is consequently clockwise; rsinne in the is rotated in Figs. 34 and 35 position shown, in which the on the cam 251 and 254 in contact with pins 259 and 261, respectively so that the pawls 252 and 258 are moved by their springs 263 and 264, respectively can so that they for the purpose of switching the gear 253 and the shaft 65 with the gear 253 work together.

The spring drive 265, which is known in principle, is shown in FIG and is only briefly described below.

The pawl 252 is rotatably mounted on an upwardly inclined arm 266 (FIG. 31) of a lever 267 which is seated on the shaft 65 such that it can swing. The lever 267 has a second arm 268 which lies essentially horizontally and, at its right-hand end, as seen in FIG. 31, is rotatably connected to the upper end of an approximately vertical rod 270, the lower end of which is connected to a fork 271 ( Fig. 1) is in rotary connection. A group of levers, which are pivotably mounted between the ends, act on the fork 271. One end of the levers rests on the lower rail of the fork 271, while their other ends are connected to individual tension springs 269 which extend upwards to a vertically adjustable rail 272. The springs try to pull the fork 271 and the rod 270 downwards, but thereby urge the shaft 65 in the withdrawal direction (clockwise, ge-Echen in Fig. 1) as soon as the pawl 252 is in the working position. A device is provided by which the fork 271 can be raised with each revolution, in order to raise the rod 270 and to enable the pawl to engage the switching gear 253. This device for lifting the fork 271 has a lever 273 which is mounted on the shaft 274 such that it can swing. The left end of the lever 273, seen in FIG. 1, is connected by a tension spring 275 to a stationary part of the machine frame. The spring 275 pulls the roller 276, which is rotatably mounted on the lever 273, against a cam 277 which is mounted on the main camshaft S of the machine. A lever 278 is also attached to the shaft 274 and is at a distance from the lever 273, but as a shoulder. of the lever 273 works. The lever 278 has a fork 279 at its free or right-hand end, as seen in FIG.

Once the shaft 70 is rotated, the wedges 80 out of the latches 83 to pull out so that the take-off roller 77 is locked to the shaft 65, should the pawl 117 can also be laid out from the disk 116. The one intended for this purpose Device has an arm 190 (FIG. 19) which is attached to that end of the shaft 70 is attached to the end of the machine on the right (seen to Row of needles) is located. A portion 197 of arm 190 extends at right angles towards the shaft 70 towards the shaft 65 and has a lateral end near its free end Projection 191, which is able to grasp a pin 192, which is laterally out of the pawl 117 protrudes so that the pawl 117 is disengaged from the disk 116 can be. The pawl 117 is reinserted into the disc 116 as soon as the Handle 75 and shaft 70 are moved counterclockwise to the pick roller 77 to lock in a certain position, the movement of the shaft 70 the Arm 190 lifts off the pawl 117 so that the pawl 117 fiddle with the spring 119 the disc 116 can be pulled. As soon as the hand lever 130 is then moved, in order to feed the withdrawal belts 133 towards the needles, the shaft 65 is rotated, until the pawl 117 engages in the shoulder 115 of the disc 116, so that there is another Rotational movement of the shaft also lifts the weight W.

The operation of the device described above is true will be readily apparent to those skilled in the art, but is briefly summarized below given.

If a group of items of goods is to be produced on a machine 50 equipped with a combined device for picking up the first row of stitches and turning the double edge, the thread is fed to the needles in order to work a first row of stitches. Furthermore, the double-edged bars 55 are moved towards the needles by the levers 57 , so that the loops of the first row of stitches are taken up by the hooks 54 of the bars 55, and a pull-off tension is applied to the bars 55 by means of the pull-off belts 61, which are attached to an auxiliary take-off shaft 63 influenced by a weight. While the machine is working, preparations are made so that the trigger can be taken over by the main trigger shaft 65. After a group of goods has been produced and after the goods have been removed from the machine and from the take-off rollers 77, the angular position assumed by the take-off shaft 65 is a completely random one. The relative position of each take-off roller 77 to the shaft 65 is, however, weak, since the take-off roller is not under tension and all pins 94 are held by the springs 97 in the same position relative to the parts 96 which are fastened on the shaft 65. The pins 94 are attached to the flanges 90 of the rotating parts 91, which at this point are locked to the take-off rollers. At this point in time, the slidable segment cam 68 carried by the shaft 70 also lies below the disk 66.

Hand lever 75 is then pivoted counterclockwise by hand and shaft 65 is manually rotated counterclockwise until the corner of cam 68 contacts recessed surface 67 and shaft 65 rotates to position wedges 80 lock latches 83 can move in order to uncouple the take-off rollers 77 from the shaft 65 and at the same time to lock the take-off rollers against movement. In the meantime, by setting the shaft 65 to the desired position, the block 186 sitting on the worm 164 has been moved out of the path of the rotor 160. The final movement of shaft 70 causes the wedge 107 located on your arm 69 to act on the complementary inclined surface 111 of the locking lever 108 in order to adjust the locking shoulder 112 of the lever 108 so that the arm 69 and thus the shaft 70 are locked . The orbital movement of shaft 70 also removes arm 190 from pawl 117 so that spring 119 can pull pawl 117 against disk 116. After the take-off rollers 77 are uncoupled from the shaft 65, the shaft 65 is rotated by engagement of the pinion 121 with the gear 122 and by turning the crank handle 130 to unwind the take-off tapes 133 from the cylinder 91 and the hooks 64 towards the needles move. The further rotation of the shaft 65 brings the shoulder 115 of the pulley 116 fixed on the shaft 65 into contact with the end of the pawl 117 rotatably mounted on the pulley 118, so that the pulley 118 is set in rotation and the weight LT. ' is lifted. While the discharge belt 133 is displaced by the rotation of the shaft 65, the screw 164 has pushed the rotor 160 to the right, as seen in FIG. 17, and consequently has the rotor 160 against the lower edge of the lever 159, as in FIG. 17 shown, pressed, whereby the lever 159 moves against the tension of the spring 155 and the auxiliary bolt 149 is swung out of the plane of the stop bolt 148 associated with the shaft 65. The Stillsetzriegelhebe1148 is then swung out by its spring 161 so that the finger 147 enters the detent 146 of the disc 145 seated on the shaft 65 in order to temporarily lock this shaft in the position which corresponds to the desired forward position of the necks 64. At this point, a double-edged rod 136 is inserted into the cutout 178 of the U-shaped part 170 and pressed down into the slots 166 of the rails 58 (FIG. 14). The double-edged rod is just slightly in front of the hook 64.

Shortly after the double edge bars have been inserted, the The machine's pattern device revolves the shaft 44 around the double-edged bars 55 from the position shown in FIG. 4 into the "half-way" position shown in FIG to move. In this position "the double edge bars and the arms 57 until the next forward movement of the pushers 59, arms 57 and levers 56 locked. The angular rotation of shaft 44 causes cam 180 to operate and lift the finger 147 of the lever 148 out of locking engagement with the detent 146 of the Washer 145 out to release shaft 65 at the time when the double edge bars 55 into the intermediate position or halfway position (FIG. 5) move. The resulting position of lever 148 is shown in FIG. on the released shaft 65 counteracts the weight W to hold the holders 64 forward to pull the double edge rods 136 and to tension the goods. The machine is working continue until the desired total length of the double edge is produced, whereupon the shaft 44 is actuated for the second time in this cycle to close the double edge conclude. The discharge belt 61 is removed from the double-edged bar 55, the double-edged bars 55 are removed from the goods and pushed against the pusher 59, the pull-off belts 61 are again connected to the double edge bars 55 and a tensile stress is applied partially brought to action on the trigger belts 61 to the double edge bars 55 against the pusher 59, as shown in Figure 6, in readiness for the next cycle to keep.

The shaft 65 released by the lever 148 is rotated in the haul-off direction by the weight W to wind the haul-off tapes 133 and pull the hooks 64 toward the haul-off rollers, and also to rotate the worm 164 so that the rotor 160 moves to the left 17, as seen in FIG. 17. Movement of the runner 160 to the left releases the arm 159, and the spring 155 rotates the locking lever 149 in a clockwise direction towards the locking lever 148, as FIGS. 27 and 28 show. The continued rotation of the shaft 65 in the withdrawal direction also rotates the pin 226 seated on the pulley 118, which in the first part of its movement wipes away over the lever 209. When the shaft continues to rotate, the pin 226 engages the lever 220, thereby releasing the lever 209 from its locking engagement with the shoulder 219 seated on the lever 218, so that the lever 209 jumps into the position shown in FIG. The shaft 65 and the pin 226 rotate second in the withdrawal direction, ie clockwise, as seen in FIGS. 36, 38 and 39, until the pin 226 engages the lever 209 and thereby pivots the lever 213 out, so that the upper edge of the in Rod 227 provided catch 229 is brought into the path of the square 228, which sits in the lever 230 mounted on the shaft 231. The shaft 231, which is the usual press shaft of the machine, is rotated and its cam lifts the rod 227. This releases the rod 242, which is moved by a spring (not shown) inserted between the rod and a stationary part of the machine. so that the lever 245 and the rod 248 actuate the arm 250 seated on the shaft 65, so that the pawls 252 and 258 can work together with the teeth of the switching gear 253. The pawl 252 is driven by the device 265, as described, in order to switch the shaft 65 in the withdrawal direction.

As the hooks 64 approach the take-off rollers 77, approaches the rotor 160 moves to the point at which the block 186 lies in the screw 164. This block 186 is located in such a way that it removes the runner from the Snail 164 lifts and releases the arm 69 from the shoulder 112 of the locking lever 108, whereupon the Spring 74 the hand lever 75, the shaft 70 and the arm 69 clockwise, seen in Fig.22, rotates so that the arms 78 move and the wedges 80 out of the take-off rollers 77 can be pulled out. At the same time, the latches 83 are released, which are in the in the flanges 90 located notches 86 occur.

The same movement of shaft 70 that pulling out the wedges 80 from the take-off rollers also causes the one sitting on the arm 197 Projection 191 lifts the drive pawl 117 off the shaft 65.

Claims (7)

PATENT CLAIMS: 1. Flat weft knitting machine with device for Moving the hooks engaging the double edge rods to and from the chair needles the chair needles away, with a group of coaxially on a common take-off shaft arranged goods take-off rollers, with this take-off, v elle in both directions rotating pull-off belts on which the hooks holding the double edge rods are attached are, and with drive devices that rotate the take-off shaft in one direction, so that these hooks move towards the chair needles, and the trigger shaft turn in the other direction so that the goods are peeled off after the hooks have grasped the double edge bars, characterized by a coupling device (82, Fig. 10, 11), which the goods take-off rollers (77) automatically with the take-off shaft (65) couples, and by a locking device (70, 78, 80, Fig. 9), which the take-off rollers (77) is also automatically uncoupled from the take-off shaft (65), with the take-off rollers be locked against rotation at the same time, so that the trigger shaft (65) is free can turn. 2. Machine according to claim 1, characterized by a locking device (70, 78, 80), which acts on all take-off rollers (77) approximately at the same time, to to keep these rollers in a fixed position and at the same time on the coupling device (82, Fig. 11) acts to decouple the take-off rollers (77) from the take-off shaft (65). 3. Machine according to claim 2, characterized by an adjusting device (66, 68, Fig. 23), which the trigger shaft (65) temporarily in a predetermined angular position adjusts, in which the take-off rollers (77) are in such a position, that they can be detected by the locking device (70, 78, 80). 4. Machine according to claim 2, characterized in that the locking device (70, 78, 80) is operated before the trigger shaft (65) is rotated to close the trigger band hook (64) to move the chair needles (53). 5. Machine according to claim 4, characterized by a stop bolt (148, Fig. 25) which detects the trigger shaft (65) and stops as soon as the trigger band hooks (64) are in a predetermined position, and by a release device (44, 180, Fig. 27), which the trigger shaft (65) makes free of the locking bar so that the trigger band hook (64) has a trigger effect can exercise on the double edge bars. 6. Machine according to claim 5, characterized in that that the release device (44, 180) acts on a linkage (56, 57) that the double edge bars (55) pushes into an intermediate position in the direction of the chair needles, the trigger shaft (65) unlocked and under the influence of the weight deduction (W, 120, 118, Fig. 17) is provided. 7. Machine according to claim 1, characterized by a control device (164, 160, 186, 108, Fig. 17) that respond to a predetermined rotation of the trigger shaft (65) responds in the withdrawal direction to the locking device (70, 78, 80, Fig. 9) and allow the coupling device (82) to work. B. Machine according to claim 3, characterized in that the adjusting device is a Washer (66, Fig. 23) for the take-off shaft (65) and a recessed curved surface (67) contains in this disc and that a mounted on a shaft (70). Lever (75) has a cam (68) provided with an arcuate working surface which, as soon as it engages in this recessed arcuate surface (67), the trigger shaft ° (65) in the predetermined angular position rotates, at the same time the take-off rollers (77) of the take-off shaft (65) made free and the take-off rollers (77) in a certain Angular position are locked (Fig. 9). 9. Machine according to claim 8, characterized by a spring device (73) which guides the cam (68) into such a position, that it lies on the bottom of the recessed arcuate surface, and through for the cam (68) certain bearing journals (72, Fig. 24), which make it possible because, ß the cam at its movement in the right direction (Fig. 22) towards the center of the trigger shaft (65) slides away to brush past the disc (66). 10. Machine after the Claims 2 and 8, characterized by a bar (108, 112, Fig.17) for locking the setting device (66, 68) in a position in which the take-off rollers (77) locked and the take-off shaft (65) is unlocked from these take-off rollers (77), wherein the bolt (108, 112) can be released after a predetermined rotation of the trigger shaft (65) is. 11. Machine after. Claim 10, characterized in that the shaft (70) both the adjustment device (66, 68) and the locking device (70, 78, 80) is common and is urged into the rest position by a spring (74), wherein the take-off rollers (77) are unlocked against the action of the bolt (108, 112, FIG. 17) will. 12. Machine according to claims 5 and 7, characterized by an auxiliary bolt (149), the stop bolt (148) only during part of the machine cycle holds out of working position, the auxiliary bolt (149) under the influence of the control device (164, 160, 159, Fig. 17) stands for a predetermined rotation of the trigger shaft (65) responds. 13. Machine according to claims 6 and 12, characterized in that that the control device (164, 160, 159, Fig. 17) the auxiliary bolt (149) only for switches off part of a machine cycle and uses it to lock the stop bolt (148) returns as soon as it is released by the release device (44, 180) has been moved out of engagement with the trigger shaft (65). 14. Machine after the Claims 7, 10 and 12, characterized in that the rotation of the take-off shaft (65) appealing Control device (164, 160, 159) a screw (164, Fig.17), which rotates with this take-off shaft (65), and a rotor (160) which is moved by the worm and in one position (Fig. 17) the auxiliary bolt (149) and in the other position (Fig. 18) the bolt (108) to lock the adjusting device (66, 68) switches. 15. Machine according to claim 14, characterized by a lever (159) of the rotor (160) in its one Position is touched to switch the auxiliary bolt (149). 16. Machine according to claim 14, characterized in that the runner (160) can be moved by a pin (157) which is attached to the latch (108) for the adjustment device (66, 68) is, so that when the rotor moves out of engagement with the worm (164) this bolt is pivoted into the I # release position. 17. Machine after claims 15 and 16, characterized by a common spring device (155), the bolt (108) for the adjustment device (66, 68) and the auxiliary bolt (149) pushes into working position. 18. Machine according to claim 8, characterized in that that the lever (75) carrying the cam (68) manually from a lower position can first be moved into a position (FIG. 23) in which the cam (68) is recessed into the Arc surface (67) of washer (66) engages the trigger shaft (65) temporarily adjust and lock the take-off rollers (77), and then move on to one position - is adjustable, in which the cam (68) passed the recessed arcuate surface (67) is, but the take-off rollers (77) are still unlocked from the take-off shaft (65) and in locked in their position. 19. Machine according to claims 10 and 16, characterized characterized in that the latch (108) for the adjustment device (66, 68) is so arranged is that the rotation of the lever (75) into its locking position the bolt (108) moves and also brings the rotor (160) into engagement with the worm (164). 20th Machine according to claim 1, characterized in that the device for pulling of the goods from a weight take-off device (W, 120, 118, Fig.17), from a Spring force extraction device (265, Fig. 1) and a control device (209, 220, 226, Fig. 33), which is dependent on a certain rotation of the trigger shaft (65) responds in the withdrawal direction to switch on the Federkraftahz_ugsvorrichtung (265). 21. Machine according to claim 20, characterized in that the weight take-off device a pulley (118) actuated by a weight and that the control device (209, 220, 226, Fig. 33) two of one located on this pulley (118) Part (226) contains actuated levers (220, 209, 213, Fig. 33) to the spring force trigger (265) in the working position and also the pull of the on the pulley (118) to take over acting weight. Publications considered: German U.S. Patent No. 716,320; U.S. Patent Nos. 2,295,512, 2,363,000, 2401531.