DE1961223A1 - Method and device for the removal of the work piece in flat board and flat knitting machines - Google Patents

Description

DR. MOLLER-BORG DIPL-ING. DIPL-PHYS. DR. MANITZ DIPL-CHEM. DR / DEUFEL 1961223

PATENT LAWYERS

Munich, December 5, 1969 H 2024 - k / nn

S.A. Monk (Sutton-in-Ashfield) Ltd. Mansfield Road, Sutton in Ashfield Nottinghamshire, England

Method and device for removing the work piece Flat board and. Flat knitting machines

The invention relates to a method and a device for carrying out the work piece removal in V-bed knitting machines the single and multi-head design.

A known detachment mechanism for this purpose comprises a combining or hanging bar which is so formed i

is that she is the first to gather hasheon and sunäonet on the workpiece exerts a tension, with a draw-off roller and a pressure roller being assigned to it, in order to generate tension to exercise on the workpiece after it has reached a certain length; pressing devices are also provided, to loosen the workpiece from the combiner bar, if the tension has been taken over by the take-off roller.

000127/1216

Eb has found that with this arrangement different ... These disadvantages arise, and among these is above all the- “. To mention lenige that when pressing off the combiner rod the work piece has the tendency to focus on the trigger and Winding pressure rollers and that, especially »when the work piece is knitted according to the shape, the tendency is present, that the edges curl inwards.

According to the invention is to a method ·· improved and sine apparatus are proposed "which overcomes the above disadvantages of the ArbeitestUokabnaheeeeehaniemus described. Or substantially reduced"

■ · ■. · '' ■ ■

According to the invention, a method is only used in Arbeltastttckabnmhae V-bed knitting machines proposed, which is characterized by that a tension is first applied to the workpiece by means of a suspension or combining rod, then the tension on the workpiece is inflated by means of a take-off roller assembly and finally that Work piece is detached from the combining bar «before the Work piece is separated from the Koinbinierstange, with an auxiliary role. caused 'the work piece in one place to be detected between the take-off roller assembly and the combination rod.

According to the invention, a work piece removal mechanism is also distinguished for V-bed triqm machines through a Hanging or Koinbinierstab, which is arranged so that it transmits a voltage to a workpiece; a take-off roller assembly to apply tension to the workpiece after it has reached a certain length; and by pressing devices for releasing the workpiece from the combining rod when the tension is due to the suction roller assembly is included and by an auxiliary role such a design that the work piece on a still between the take-off roller assembly and the combination rail is detected. <.

008027/126 8>

BATH ORIGINAL

Preferably, the take-off roller assembly comprises a stationary one Take-off roller and a tensioning roller that can be moved in and out of the working position near the take-off roller «Preferably the auxiliary role is also in the form of a loose role, which for provides a forced displacement of the knitted fabric emerging from the take-off roller assembly.

The invention will now be explained in more detail with reference to the accompanying drawings, in which

1 shows a schematic representation of a multi-head V-bed stretching machine is;

Fig. 2 is a perspective view of a part a V-bed knitting machine with a knitting head and those parts of an Eegel subdivision that are necessary for understanding the invention and with a removal mechanism according to the invention;

the pig. 3-5 are schematic side views of the removal assembly in various working positions;

6 is a side view in the direction of arrow X. FIG of Figs. 1 and

7 to 10 are sections and show the various " Working positions of a combination rail stop mechanism. ■

Referring particularly to Figure 1 of the drawings, there is a multi-head V-bed knitting machine with six knitting heads K and a central one Fegel section shown. Fig. 1 also shows generally at F parts of the main support frame of the machine, where some parts: ■ of these in the other figures of the drawings shown βInd.

009027/1288

In the following description, reference is made generally to only one knitting head E, but the construction and operation in all work piece removing mechanisms in all heads K is, however, the same.

In general about the drawings it can be said that a couple works together Needle beds 1 is shown, each of which has a group of individually displaceable needles which can be actuated by the emergency housing. A variety of thread carriers 3 is assigned to the needle beds 1. The workpiece removal mechanism generally includes a combination rail assembly 4, a take-off roller assembly 5, an auxiliary roller and a press-off arrangement 7.

The combination bar arrangement 4 (hook-up bar) has a tricot cutting bar 8 (tric-cut bar) with a number of Hook 9 on that with a. Division similar to that of NadaLn 2 are arranged at a distance from one another and held in their position by a clamping rail 10. The combination rail is carried at its ends on slide assemblies 11 which are supported by a tie rod. 12 braced s.ind, where the connection between rod and slide assemblies such is that a horizontal and vertical adjustment of the combine chi ene becomes possible, so that the hooks 9 are calibrated in the φ present correct position relative to the needles. The slide assemblies are slidable on vertically arranged ones Guide rods 13 supported on the frame F supported and a movement in a vertical direction is given to these arrangements by means of chain and Xettenradanrichtungen 14 granted. -

Each chain and sprocket assembly 14 consists of one Chain 15, which is attached to the upper and lower ends of the Stoieber 11 provided attachment 1st, - with the Chain around an upper sprocket 16, loose sprockets 17 »a. Drive sprocket 18 fixed to the driven shaft 19 and a lower tension wheel 20 extends.

009027/1266

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The driven shaft 19 is rotated by a motor 21 that works continuously while the machine is on. The motor 21 is controlled via a ·. ·. Gear 22 on an intermediate shaft 23 coupled, which is an electromagnetic Coupling 24 has. The intermediate shaft 23 is further via a gear 25 to the. driven shaft 19 coupled. Additionally becomes a magnetic particle clutch 26 via a gearbox 27 to the intermediate shaft 23 and via a gear 28 to a second intermediate shaft 29 coupled. The shaft 29 is over a Claw clutch 30 and a gear 31 to the driven Shaft 19 coupled. The claw coupling 30 is through «inen. hydraulic adjusting cylinder 32 actuated, the ron of the main engine control unit, for example a perforated tape mechanism { must be regulated.

A signal is provided to raise the combination rail assembly from the main engine control that the electromagnetic Clutch 24 is energized, one rotation of the driven Shaft 19 takes place via the gear 25, via the Iobbini rail arrangement 4, the electromagnetic clutch and the magnetic particle clutch 26 are de-energized excited. In addition, the claw coupling 30 is allowed to grip, causing the driven shaft 19 to rotate in one direction contrary to the previously described is granted « In places below spacing are over * the length of the machine. ■ for example 3 spring-loaded stop mechanism 33 before. seen, which serve to measure the extent of the upward movement of the Determine the combination rail arrangement 4 eu and, as below will be shown, the tensioning of the first row of stitches To score.

Each stop mechanism 33 includes a lever 34t of the Is pivotably mounted on a U-shaped frame element 35 '» The VinkelTeretstellung dee Rebele durea a head screw 36 is brought about. The end of the Hebele 34 let old tineu Tersteilbaren Stop 37 is provided, the latter receiving a piston 38 which acts against a compression spring 39. A head start

009827/1286.

on one side of the lever 34 carries a pivotably mounted fork-like element 4L

One approach is fixedly mounted on the driven shaft 19 or a nook 42 to which a stop block 43 is attached, which interacts with the stop 37 and the punch 38, wherein the stop block 43 is provided with a protruding pin 44, which with the fork-like element 41 together. works.

Sa ₁ about the Combine chi enenanordnung 4 "do your unteacen position to its uppermost or working position move au, the driven shaft 19 more to be rotated than once, the reason for and the work of catfish to the above stopper mechanisms are described below. So turn, * while the combination rail 4 is raised, the shaft 19 and thus also the approach over the crouch 41 counterclockwise, the fork-like element '41 on the shaft 19 and the lever 34 in a horizontal or working position, as in Jig . 7 shown rests. During the first rotation, the pin grips the fork-like element 41 and lifts the lever 34 so that the stop block 43 does not, as soaped in FIG. A further rotary movement enables the lever 34 to return to its division of labor, "o that during the second rotation the stop block 43" as in FIG. 9 and 10, the stop 37 engages with what happens

The uppermost movement limit of the combination rail is determined is.

When engaging with the stop 37 β rf old, wla Mg « shows that the stop block 43 also the plunger 38 against the action of the spring 39. This causes a hole in the energy supply created so that after switching from the clutch 24 to the clutch 26, the direction of movement of the loabinlersohiene UH is controlled, with dlt spring 39 an output in in the opposite direction delivers what-where-to-int voltage

008827/1266

the first "-. Meschenreihe is placed can be detected" the ene at this time by the hook 9 of the combiner chi, piping effect is facilitated in that weights are 45 46befestigt to block discs which are fixed to the shaft 19 by means of cables 47, wherein the weights then serve to form a counterweight for the combination rail arrangement «

So it shows that during the downward movement of the Koabini splint the pin 44 comes into engagement with the fork-like element 41 and the & s into the in Pig. 7 position shown resets to be ready for the next operation be.

The pick roller assembly 5 includes a pick roller 48 and a pressure roller 49 'The roller 48 is mounted in fixed bearings in the frame F and is driven by the gear 50 from the veiten intermediate shaft 29 turned, from which the downward movement Issued on the combination rail via shaft 19 will. It can therefore be seen that the mode of operation of the roller 48 is only required during a removal movement and therefor it therefore remains stationary until the combining rail is begins to move in a downward direction. The pressure roller 49 is in spring-loaded housings 51, which are in guide rails 52 are displaceable, stored. The housings 51 are coupled via linkage 53 with a working shaft 54, which by the action of a hydraulic adjusting cylinder " 55 is adapted to be rotated at an angle so that the pressure roller 49 is against a position in the vicinity of the delivery roller 48 and move out of this. The help roll 6 is attached at its ends on articulated brackets 56, which are in an upward direction by means of spring resistance standing levers 57 are biased. Like Flg. 6 shows, the ends of the levers 57 are connected to tension springs 58 which are anchored at 59 against the carrier rail F. Adjustable·

009827/1266

Cap screws 61 are between the frame F and the levers provided to adjust the angular position of the latter. So it turns out that the auxiliary roller springs very easily, so that during use the pressure roller 49 is in its working position between the take-off roller 48 and the "auxiliary roller 6 is moved as shown in Fig. 5, with the help roller 6 only slightly down against the effect there? feather 58 is pushed.

The press assembly 7 comprises a press plate 62 which extends over the full width of the knitting head and into one Gap between a guide plate 63 for the knitted Garment and a workpiece receiving table 64 extends. The press plate 62 is pivotably mounted on brackets 65, which are attached to a support frame 66 and is attached to one end of a lever arm 67. A tension spring 68 is between the lever arm 67 and an anchoring point on the Frame 66 is provided, the other end of the lever arm 67 is connected to an actuating rod 69. A pivoted one Roller lever 70 is mounted near the base of one of the guide rods 13, a roller at one end of the Lever 70 is positioned so that it duroh the accordingly positioned slide 11 of the combination rail assembly 4 is detected, the other end of the lever 70 with a Bushing 71 is veeehen, which is slidable on the lower end the actuating rod 69 is supported. A compression spring 72 is on the rod 69 between the sleeve 71 and a stop collar 73 positioned. So while the combination rod moves eioh into its lowest position shown in Fig. 5 and 6, the said slide 11 detects the roller lever 70 and ensures that the pressure plate 62 against the action of the 'springs 68 and 72 tilted forward as shown in Fig. 6, whereby the knitted fabric from the hook 9 of the Koabiniersehiene is pressed. However, this does not lead to an immediate release of the tissue, since the springs are designed eo are that the plate 62 does not start any pressing while the fabric is under tension between the combination rail and rollers 6, 48 and 49. So the plate steers first

009827 / 1266-

ti

62 remove the fabric only to the front from the hook 9 and, let enough fabric is knitted so gives the weight of the fabric plus the bridge applied by the plate 62 ee τοη the Hook 9 without difficulty IeI.

In operation there is a calibration in order to be able to remove the work piece, the combination rail assembly 4- in your? lowest position » the pressure roller 49 is in its rest position as in FIG FIGS. 3 and 4 shown and the engine 21 is running at lust Clutches 24t 26 and 30, the combination sole locking mechanism 33 is in its rest position according to VIg. and the press assembly 4 in its retracted position. Ea should be noted that various on the j Electrical interlocks known in the art must be in their correct positions at this stage. to create a clear passage for the work parts. BIe The most important of these are the switches 74 which indicate the angular position of the shaft 54 actuating the pressure roller

When the interlock switches are in the correct position gen are located, a signal is sent from the main machine control which provides for the excitation of the coupling * 24 and thus for the upward movement of the combination rail · during this. Upward movement is the working method of Anaohlagueohanism 33 as previously described with reference to FIGS. 7 to 10.

If you reach the top position »through the Ansohlagemeohaniemufl 33 is determined, the beacons 9 of the Koabinatloneechiene «Positioned between the two needle beds 1 and one of the yarn carriers 3 is operated to lay the yarn» where · when it comes to the usual catfish the separating thread for the first masonry series acts The main masonry regulation requires *, then changes a removal process. As a result, the clutch 24 is de-energized and the clutch 26 is energized, so that the dog clutch 30, the position of which is indicated by a switch 75, the driven shaft 19 in the opposite direction sur Movement of the combine is rotated, the beacons

009827/1266 -

9 reach down into the first row of machines. As previously described, a release of the clutch 24 makes it ,, that the piston 38 under the action of the spring 39 the shaft 19 sufficiently moves back so that tension is applied to the first row of stitches.

Assuming that the knitted fabric is of constant width, the combination bar is moved downward by small bits under the action of the clutch 26 and the dog clutch 30 moves.

If the combination rail arrangement 4 reaches its lowest Position, so leaves a nooke 76 on one of the sliders 11 toggle a switch 77, which releases the dog clutch 30 and thus the regulated downward movement of the combination loop completed, in this position it extends Knitted fabrics indicated at 78 in FIGS. 4 and 5 tighten state directly between the needles and the combination rail. An actuation of the switch 77 also ensures an actuation of the hydraulic adjusting cylinder 55, whereby the pressure roller 49 in its working position "as in Flg. 5 is shown, is moved *. She makes sure that knitted fabrics by more than a quarter turn do that

The take-off roll 48 is wound around which is rotated by a clutch 26, the gear 28, the shaft 29 and the gear 50 and also brings the auxiliary roll 6 mm work which ensures that the knitted fabric follows its correct path and not around it Pressure roller 49 or around the Abeugerolle 48 is wrapped. The knitted fabric is then tensioned by rollers 48, 49 and 6 gate.

A movement of the combination axis arrangement 4 la the lowest Position also ensures that the roller lever is actuated 70, whereby the press plate 62 in the rorlierbeeohrebenen Way is operated. For the latter case, presses

009127/1268 *

the press plate 62 does not remove the knitted fabric while it is being calibrated in is in a taut condition, and when the pressure roller is moved in the work division, calibration shows that the Koabinationssfelene is raised slightly, causing the knitted fabric can be wrapped around the hell. During the continued Knitting the knitted fabric 78 reverses the combination rail in their lowest position surttck and then the part of the knitted fabric «between the rollers and the combination rail limp At this stage, the weight of the body effect plus the effect of the squeeze plate 62 for a separation of the knitted fabric τοη the beacons 9 ·

When the knitted garment is finished, do so. gives the i main machine control a signal so that the yarn carriers end their movement at the end of their stroke and also signals a pressing process, whereby the item of clothing τοη the needles 2 is given in a known catfish. At this point in time, the electrical circuit via the magnetic particle coupling 26 is subjected to a time sequence which is effective to provide for continued rotation for a set lateral period of the draw roller assembly 5 in order to release the workpiece so that it can fall into the receiving tray 64. If the machine is equipped with shaping channels, the shape of which is indicated by the shape and nut housing at 79 and 80, devices are provided to vary the tension applied to the knitted fabric in accordance with the shape of the thread.

For this purpose, a converter 81 with a variable ratio is coupled via a gear 82 to one of the nut housings 80 which regulate the knitting width of the knitted fabric. The deformer 81 is also electrically fiber line 83, the magnetic particle clutch 26 nlt connected, which is based on the principle that the greater the applied voltage, the greater the thus transmitted torque is 1st · Works so you _v to this principle, so when the worms 79 are actuated, in order to reduce the fabric width that is

008827/1266 '

voltage gradually reduced and so the torque output degraded. Similarly, when the tissue width is increased, the tension and therefore the instantaneous increased. If you use a variety of τοη sprocket

sizes for the gearbox 82 so can a large torque range to the combination rail and to the trigger roller arrangement be placed.

If at any time the worker deems it necessary, use the combination rail 4 or the take-off roller assembly 5 to reduce the applied load, this can be done manually by means of a manual control holder shown at 84 be made. This reduction in the load is also carried out automatically during a shaping process. So when the main machine control is a standardization process signals the main camshaft, not shown of the machine actuate a linkage 85, which the backward-preventing pawl 86 of a ratchet wheel 87 on the intermediate shaft 29 releases. This ratchet and ratchet mechanism is known in the art and serves to prevent the tension of the knitted fabric from the Shaft 29 pulls or rotates in the wrong direction. This also applies if the query feed of the machine is shut down by moving the power control rod to the "off" position is rotated.

Obviously, various operations described above can be performed by selectively operating the. Bipplings 24, 26 and 30 made will. The general way of working is therefore as follows 1. The clutch 24 is engaged, the motor 21 rotates continuously, whereby the driven shaft 19 is rotated and thereby the combination rail in the limit position their stroke, as determined by the Ans chi agem echanismus 33, is raised

009827/1266

2. The yarn carrier 3 is operated to the first loop hooks calibrate and the clutch 24 is de-energized while the clutch 26 is excited at the same time.

3. If the clutch 24 is de-energized, eo nan ensures that the Each 39 turns the shaft 19 in the opposite direction, whereby tension is exerted on the first row of knitted fabrics. The combination rail assembly is made through the weights 45 balanced, so that the only one on the first maaohen row tension applied to the fabric brought about by the spring 39. .

4 · The voltage is applied to the knitted fabric knitted by the ä clutch 26, the dog clutch 30 and the combination of track assembly actuating shaft 19th

5. Knitting continues with the cabinet rail down in small pieces corresponding to a knitted piece Row of stitches is moved, with the back sole pawls 68 serve to prevent the tensioned knitted fabric from pulling back the combination rail.

6. When the combination rail reaches its lowest position, the pressure roller 49 is actuated so that all tension of the fabric is released by the suction roller arrangement 5. i

7.If the knitted fabric is incorrect a certain length,

U -

■ o contributes to the press-off arrangement 7, the knitted fabric τοη loosen hook 9 of the combination soles su *

8. Once a striped piece of fabric is ready, it will

dl · ··· Workpieces in V ·! ·· Peat, known to us ι · η ·.

9 »SIt the working method as under 1 is repeated ·

009 · 27 / 12ϋ

. 14 -

It is important that by using the magnetic particle clutch 26 a constant and continuous tension on the knitted fabric Tissue is maintained, the tension being variable to accommodate the width of the tissue and / or the to adapt to special knitted fabrics.

001127 /

'^ v Ü

Claims (12)

Claims ny method for removing the work piece in a V-bed pulling machine, whereby a voltage is first applied to the knitted work piece using a combination rail, which is driven in the downward direction in additional pieces corresponding to a knitted row of stitches, and then a tension is applied to the work piece by means of a take-off roller arrangement and finally the work piece is separated from the combination rail, characterized in that, before the work piece is separated from the combination rail, aids are made to grasp the work piece at a point between the deflection roller arrangement and the combination rail, so that when released of the work piece from the combination rail, these auxiliary devices arrange the knitted structure emerging from the take-off roller arrangement to follow a certain path. 2. The method according to claim 1, characterized in that tension on the workpiece by means of the draw roller assembly is applied and that the workpiece is detected by the auxiliary devices at the same time. 3 * The method according to claim 2, characterized in that the combination · duroh obtained βohiene maintained for a certain number of rows hash g detecting the workpiece, after the clamping of the work piece was taken from the pick roller arrangement. 4. Work piece withdrawal mechanism for a V-bed Striok machine with a suspension or combination rail that grasps the knitted workpiece and applies tension thereto; a pick roller assembly or a pick roller and a pressure roller to apply tension to the work piece. 009827/1268 spend after it has reached a certain length, and Press-off devices for loosening the work piece from the combination rail after the tension by the take-off roller arrangement was recorded, characterized in that, ß Auxiliary devices (6) are provided to the work piece at a point between the combination rail (4) and the Take the take-off roller assembly (5). 5. Mechanism according to claim 4 »characterized in that the auxiliary device (6) is under spring tension Has roller that zueammenwlrkt with the pressure roller (49). 6. Mechanism according to claim 4 or 5, characterized by power-operated devices for lifting the combination rail (4) in working position, for lowering the combination rail (4) in small amounts corresponding to a knitted one Row of stitches and for turning the take-off roller (46) in small Amounts corresponding to a knitted masohen row. 7. Mechanism according to claims, characterized in that the power operated device (3) comprises selectively operable clutch mechanisms (24, 26, 30). '. 8. Mechanism according to claim 7, characterized by an ent Coupling (24) arranged in such a way that it converts the combination axis (4) into one via a driven shaft (19). employment position moves; by a second clutch (26), which is driven by a third clutch (30) and this. ^ eIIe (19) the lower combination rail (4) absenlt, whereby the second clutch (26) is arranged so that it pulls the triggers ro He (48) turns. j 9. Mechanism according to claim 8, characterized in that} the second clutch (26) has a magnetic particle clutch, and that devices (81) are provided in order to change their torque output in such a way that the on the work piece through the combination rail (4) around} the take-off roller assembly (5) applied voltage is varied. 009827/126 10. Mechanism according to claim 8 or 9 »marked by a device (33) for applying tension to the first course of knitted loops just before the tension is absorbed by the combination rail *. 11. Mechanism according to claim 10, characterized in that that the device (33) has a spring-loaded plunger (38) has when the first clutch mechanism is released (24) can be actuated to give a limited angular rotational movement of the driven shaft (19) and thereby a cause limited downward movement of the combination rail (4 ·). 12. Mechanism according to one of claims 5 to 11, characterized in that the pressure roller (49) is mounted on supporting rods (53) and that driven devices (55) are provided to move them between a rest position and a working position, in which presses the workpiece into contact with the take-off roller (48) and the auxiliary roller (9). 13 · mechanism according to any one of claims 4 to 12, characterized in that the Abpreseeinrichtungen (7) comprise a plate (62) dee longitudinally Striokkopfea extends, said plate (62) criteria to the swirling motion to egg ^ fixed support frame (66) in a position in which the fully lowered position of the combination scbee (4) is mounted * 14 mechanism according to claim 13t characterized that the angular movement of this plate (62) against the action of springs (68, 72) via an actuating rod (69) and a pivoting lever (70) is brought about, the actuation of this lever to produce the angular movement as a result of being detected by the combination engine (4) is tangible. 009827/1286 ir Blank page