US2022448A - Guide needle lapping machine - Google Patents

Description

Nov. 26, 1935. E. WlRTH GUIDE NEEDLE LAPPING MACHINE Filed June 23, 1934 6 Sheets-Sheet l Filed June 23, 1954 6 Sheets-Sheet 2 F 3 IIIIIL m 6. I I l 1| IIIIJ Nov. 26, 1935. E. WIRTH GUIDE NEEDLE LAPPING MACHINE 'Filed June 23, 1934 6 Sheets-Sheet 3 FlhS Nov. 26,v 1935.

E. WIRTH GUIDE NEEDLE LAPPING MACHINE e Sheets-Sheet 4 Filed June 26, 1934 Nov. 26, 1935. E. wlRTH GUIDE NEEDLE LAPPING MACHINE Filed June 23, 1934 6 Sheets-Sheet 5 Nov. 26, 1935. E. WIRTH GUIDE NEEDLE LAPPING MACHINE Filed June 25, 1934 e Sheets-Sheet e Patented Nov. 26, 1935 PATENT- OFFICE GUIDE NEEDLE mrrmG momma Hartmannsdorf, near Chemnitz, Germany Application June 23, 1934, Serial No. 732,122

In Germany September 27, 1932 16 Claims.

The invention relates to a warp frame or to an attachment, for warp frames, high'speed warp frames, double warp frames. double rib warp frames or Rachel machines and the like, for the -5. production of diagonally worked knitted fabrics. In the known warp machines for producing diagonally knitted fabric, the so-called Milanese knitting machines, the warp threads extend from view.

the warp beamstowards the lace needle'through open needle frames. The laying and further movement of the warp threads is effected by these needle frames as well as by moving sinker combs.

It has already been proposed to pass the warp threads through eye pointed or guide needles. In 15 a frame which ispivotally. arranged at'theitop of the frame of the machine. T'he frame in which the warp beams are slidin'gly mounted is also secured to the arms carrying the guide needle 20 frame. The warp beam frame is rocked from the guide needle frame. The frame is oscillated The present invention relates to a device which can be applied as a self contained unit to warp knitting machines of the kind above referred to in order to produce diagonally knitted fabric. 'I'he devicecan also be applied to existing warp knitting machines in order to be able to utilize the latter for the production of diagonally knitted fabric.

The warp beams are arranged so as to be individually removable in warp members which are displaceably mounted in the frame of the machine. The guide needle lappin machine is suspended on a shaft which is journalled in bearings' rigidly connected to the frame of the machine. By means of levers and ties this guide needle lapping machine is connected with levers which are carried on a shaft mounted in the upper part of the device and this shaft has motion imparted to it by the eccentric shaft. In this manner the lapping motion by the needles is derived from the eccentric shaft.

The guide needles or guide sinkers are not mounted individually but are secured in groups of'two or more in the lead by fusing in or fitting in recesses. This group is carried on a correspondingly heavily constructed rocker so that the guide needles have .a stronger support. In accordance with the nature of the desired lapping and the number of guide needles carried on a rocker two or more threads are rocked simultaneously instead of each needle.with the associated thread being moved individually as hitherto. In thegap between the rockers a spacing device is provided at the upper part so that the rockers are held against lateral displacement and precisely in accordance with the groups of guide Q needles. The rockers are locked by'inner double these machines the guide needles are mounted in combs arranged to be displaced up and down whereas the movementof the rockers is effected by laterally arranged outer double combs which canbe moved up and down and also laterally.

One embodiment. of theinvention is shown by 6 way of example in the accompanying drawings inwhich:

Fig. 1 shows a part of the. machine in front Fig. 2 shows a side view. w

Fig. 3 shows one end of the-guide needle lapping machine on an enlarged scale.

Fig. 3a shows-a part of Fig. 3 as seen from above. I

Fig.4isapla'n view of'the mechanism shownin Fig. 5 shows a partial section through one end of the guide needle lappi machine.

Fig. 6 isa section along the line 6-6 of Fig. 5.

Fig. 11 isa section along the line l-.-'| of Fig. 5. Fig. "8 is an enlarged section along the .line 88ofFlg.1.

.Fig.9is asectionalong theline 9-9 of Fig; 3.

Figs. 10 and 11 show two. different working lapping machine.

Fig. 13 is a perspective view of a guide sinker 1 carrier.

Fig. 14 shows a front view of a-number of guide sinker carriers. v

The arrangement comprises a framework l on the upper part of which is mounted a stationary frame 2 on which the warp 3 are displaceably arranged. Only the left hand half of the machine and broken-away parts ofthe right hand half are shown in Fig. 1. v

Finedto the frame I is a centralbea'ring l and 40 two lateral bearings i carrying sleeves 42-4 and 5', respectively. for the stationary shaft 6 carrying the guide needle tannins machine.

Sleeves I, one near each end of the shaft 6 and sleeves 1, one neareach sideof the central bearing 4 are pivotally-arrangedon the shaft 6 pro vided with supporting surfaces 8 on which an.

intermediate member 8, Fig. 8, is secured. Provided on this intermediate member are twosu'pporting bars ll and ii on which rockers carrying the guide needles are suspended.

On their upper side the sleeves I and 'I' are provided with hearing elements I! in which double armed levers l3 and I are iournalled. Rods l5 carrying locking combs u, n are linked to the 1 In accordance with the number of guide needles,

' 'the arms 25 have guide sinkers 26 also secured in leads 28. In order that the supporting rockers I! are held at the correct separation at the upper ends they are provided on either side with spacing members 29 (Figs. 8 and 13).

Connected to each arm M of the double armed levers l3, I4 is a pitman 39, Figs. 1 and 5 by means of whichthe double armed levers l3, l4 are actuated from the eccentric shaft 3 I.

At both ends of the device a shaft 33, Figs. 1, 5, is mounted in 2. lug 32 on the sleeve I. The shaft 33, a pinion 34 and a twisted bar 35 in alignment with the shaft 33 are united toconstitute a unit. The pinion 34 is in engagement with a pinion 33 carried on a displaceable shaft 31. Each shaft 31 is, by means of an arm 38, Fig. 5, connected with the corresponding rod l5 carried by the arm l3.

Secured to the lower end of each shaft 31 is a member which carries arms 39 and 49 at the upper and lower ends respectively. The ends of these arms are slotted and, when the shaft "is lowered, embrace the projections 29, 2| on the supporting rockers l9, Figs. and' 11. The bolt 4|, Fig. 4, connecting the arm M with the pitman 39, is extended in both directions and carries cross bearing sleeves 42.

Provided on the right hand side of the front cross bearing sleeve 42 and on the left hand side of the hind cross bearing sleeve 42 is a bearing bracket 43. In each of these bearing brackets 43, a pin 44 is journalled on which a lever 45 is secured. The levers 45 carry at their other ends bolts 45 which are Journalled in the cross bearing sleeves 42 and in turn carry arms 41 to which the outer comb carriers are secured.

As shown in Figs. 1, 3, 9 and 12, these outer.

comb carriers consist of bars 48 of angular cross section on which are secured plates 49 covering the rockers I! on the outside.

At the upper side of the bars 43, shifting combs 55, Fig. 9, are provided which also can embrace the projections 23 on the supporting rockers l9. The lower end of the plates 49 carry shifting combs 5| adapted to cooperate with the projections 22.

Mounted on the sleeves I provided near the ends of the shaft 5 are further bearings 52, Fig. 3, in which forked levers 53 are iournalled. The forked levers 53 carry pins 54 for cross heads 55 to which is connected the pitman 55 deriving motion from the eccentric shaft 3|, Fig. 2.

As shown in Figs. 1-4, 10 and 11, the forward end of the forked lever 53 is shaped to constitute a slot guide 51 embracing the twisted bar 35.

Mounted on a shaft 53, Figs. 2 and 12, is a bell crank lever 59, 5., the forked arm 59 of which is actuated from an eccentric on the shaft 3|. Connected totheupwardlydirectedarmtlisalink 6|, the other end of which is connected to an arm 53 carried on a shaft 52.

Rigldly secured on the shaft 52 are two lever arms 54, 35 connected to pitmans 65 and 61, as shown in Figs. 1, 2 and 12. Thme pitmen 55 and 51 are connected with the arms 58, 59 of a double lever carried on a shaft 19. The shaft is journalledin the bearing 5, Fig. 1.

Connected with the double armed lever 53, 59

is a downwardly extending lever II having a slot guide I2. Moving in the guide 12 is a block 13 which is secured to a bolt 14 mounted in an upper sleeve 15 of an arm 15, the lower sleeve I5 of which is pivoted to the shaft 6, Figs; 1 and 16. 5

A bolt 15 carried by the arm 15 is adapted to be engaged in a sleeve 11. The sleeve 11 is carried on an arm 18 which forms part of or is secured to the sleeve 1' on the shaft 6.

Secured to each of the end walls of the frame- 1() work I are bearings 19, Figs. 1 and 15, in which are journaJled bolts 39 spring urged in one direction. At one end, each of the bolts 80 carries a sleeve 3| adapted to engage over a pin 82 mounted on the lug 32. The other end of the bolt, carries 15 a roller 33. The bearings 19 are provided with apertures through which a stepped portion 84, connected to each thrust rod 35, are adapted to pass. The stepped portion 34 bears against the roller 33 and a roller 85 on an adjustable pin 81. Thethrust rods are actuated from the eccentric shaft 3|.

As shown in Fig. 1 a cross shaft 83 is journalled in the central bearing 4. On both sides of'the shaft 38 is a cam disc 59. These cam discs 89 are driven in common by a toothed gearing, Fig. l. The cam discs 89 cooperate with thrust bolts 9| which are mounted in bearings and carry arms 92. The arms 92 operate on spring actuated driver arms 93 carried on the-bars 48 of angular cross section. The driver arms 93 displace laterally the two shifting combs 50 mounted on the bars 45 and thus effect the displacement of i the warp threads.

The eccentric shaft 31 is driven'from the main 86 shaft.

Due to eccentrics operating on the lever 59 the other lever arm 53 is moved. If for example the lever 59 is lowered, Fig. '12, then the lever 60 moves to the right. Due to the link 6|, the lever 63 follows this motion, whereby the lever arm 64 is raised and the lever arm 55 is lowered. By means of the pitmen 56, 61 this motion is transmitted to the lever arms 58, 59 so that the lever connected therewith moves to the left. Due to the block I3 moving in the slot guide 12 and the bolt 14 carried on the block 13, the arm 15 pivoted by means of its sleeve '15" to the shaft 5 is swung to the left. By means of the bolt 16 mounted on the arm 15, the arm I5 is connected with the arm 18 carried on the sleeve 1 near the central bearing 4 so that the sleeve 1' is turned on the shaft 5 and the member 9 carried on the supporting surfaces 9 of the sleeves 1 and is moved to the right. The guide needles l8 suspended thereon are thereby swung to the right through the lace needles, Fig. 12. By lifting the lever arm 59, the guide needles I! are in a similar manner swung to the left.

By withdrawing the bolt 16, Fig. 16, from the sleeve 11, the connection between the arms 15 and It can be released so that the guide needle lapping machine may be swung to both sides, for instance, for drawing in the threads at the beginning of the operation.

The rockers l9 carrying the guide needles |8 are operated on the one hand by the locking combs l5, l1 and on the other hand by the shifting combs 5|, 5|. If the pitmen 30 are lifted by the eccentrics carried on the eccentric shaft 3| then the lever arms |4 linked to the pitmen 39 are raised. The other arms l3 of the double levers l3, l4 are lowered whereby the rods I5, Fig. 5, move downw -rdly and the locking combs which will be described below.

By means of the cam discs as, the thrust bolts 9| are'actuated. The arms 92 carried thereon operate on the spring actuated driving arms 93 carried on the angular bars 49. In this way the plates 49 secured to the angular bars 49 are displaced after they have been lowered in a manner ing motion, the'shifting combs 50, 5| carried on the angular bars 48 or plates 49 are brought over .the projections and 22 on the rockers I9 so that the rockers I9 are displaced therewith after being released from the locking combs I6 and I1.

By means of the bolts 4|, Figs. 3 and 4, which connect the arms I4 with the pitmen 39, the cross bearing sleeves 42 carried on the extension of. the bolts 4|, Figs. 3 and 4, are raised on raising the pitmen 39. In this way the levers 45 which are carried in the bearing blocks 43 on the bolts 44 and which are caused to move with the cross bearing sleeves 42 by means of the bolts 45 are also moved upwardly. By means of the levers 45, the arms 41 carried on the bolts 49 and to which are secured the bars 49 and the plates 49 carrying the shifting combs 59 and 5| respectively, are also raised.

In this way by means of the pitmen 39 the locking combs I6, I1, Fig. '1,'on the one hand are moved downwardly by the rods I5 in order to hold the rockers and on the other hand, by means of the arms 41 the bars48 and plates 49 are raised whereby the shifting combs 59, 5| carried thereon release the rockers I9. In this way, the

rockers I9 are alternately positively .placed under the influence of the pairs of locking combs I 5, I1 and shifting combs 50, 5|.

In order to move the rockers I9 from one side to the other, a twisted bar 35 forming a unit with a vertical shaft 33 is provided ateach end of the guide needle lapping machine. This bar 35 is embraced by means ofa slot guide 51 carried on the lever 53. By means of the cross head 55 the lever 53 is connected with the pitman 56 actuated from the eccentric shaft 3|. The gear wheels 34 mounted on the shafts 33- carrying the twisted bars. 35 engage with gear wheels 36 mounted on displaceable shafts 31, Fig. 5. By means of the arms 39, these shafts 31 are caused to participate in the motion of the rods I5. Mounted on the shafts "are the elements having the arms 39, 49 provided with slotted ends.

In the lowered position of the shafts 31, these arms 39, 49 embrace the projections 29, 2| on the rockers I9, Fig. 10. If the lever 53 is'moved downwardly then by means of the slot guide 51 embracing the twisted bar 35 the shaft 33 with the gear wheel 34 is rotated and thereby the gear wheel 36 and the shaft 31 with the element secured thereto. By means of the arms 39, 48 embracing the lugs 29, 2|, the rockers I9 are moved from one path through 180 into the other path.

As an additional safeguard for holding the stationary shaft 9 against movements in any direction as well as against vibrations and in order to ensure the required definite position of the guide needle lapping machine during operation, a special locking; device is provided at each end of the guide needle lapping machine.

Sleeves 9| carried on bolts 89 can pass over the pins 92, Figs. 1 and 15, provided at both ends of the machine. The motion of the bolts 89 is effected by means ofthe stepped portions 84 provided on the thrust bars 85. By means of the stepped portions 84, the bolts 89 are urged against Due to the lower-' ried on the endsof said guide needle lapping ma-- the pins 82. In this way, the precise position of the guidev needle lapping machine in the longitudinal direction is ensured. By means of the sleeves 9| passing over the pins 82, the guide needle lapping machine is simultaneously held 5 the pin 82. Then the bolt 88 would be displaced in the sleeve 8| towards the pin 82.

The guide needles" are secured in groups of two or more in leads 21 or the like on the supporting rockers I9. In order to, give the threads a reliable guidance they'are also guided by separate guide sinkers 26. In order that the rockers l9 are held at the upper portion also so as to correspond with the thickness of the leads 21 or 28 carrying the guide needles I9 and the guide sinkers 26, spacing sections 29, Figs. 13 and 14 are provided. Instead of using guide sinkers 25, the guidance ofthe thread can be effected by means of combs carried on the arms 25.

What I claim is:

1. In a warp frame or attachment for warp frames, high speed warp. frames. double" warp frames, Rachel machines and the like, for producing Milanese fabric with travelling guide needles, in combination a-statlonary fr me carrying the warp beams and connected to the frame of the machine'bearing supports depending from said stationary frame, a stationary shaft fixed in said bearing supports, a guide needle lapping machine pivotally carried on said stationary shaft, said guide needle lapping ma- 4o chine comprising rockers carrying guide needles, locking combs and shifting combs, an eccentric shaft arranged above said stationary frame, and transmitting membersmounted between said eccentric shaft and said guide needle lapping machine for transferring the movements of said eccentric shaft to said guide needle lapping machine.

2. In a mechanism as set forth in claim 1, a twisted bar carried by'said vertical shaft driven by said eccentric shaft,a traction member actuated by'said eccentric shaft, a lever connected to said traction member and a slotted guide on said lever embracing said twisted bar.

3. m a mechanism as set forth in claim 1, bolts at both ends of the machine, sleeves carried by the free ends of said bolts, a stepped wedge provided at each end of the machine and moved up and down by said eccentric shaft and pins car- 80 chine and adapted to be engaged by said sleeves on said bolts.

4. In a mechanism as set forth in claim 1, means adapted to interrupt said transmitting members requisite for actuating said guide needle lapping machine for the purpose of facilitating the drawing in of the warp threads.

5.In a mechanism as set forth in claim 1, a cross shaft mounted in the middle portion of said machine frame and driven by toothed wheels, a

provided at one end of each driver plate and driver arms carried by said shifting combs, the arrangement serving the purpose of displacin said shifting combs. 5 6. In a mechanism as set forth in claim'l, in which said guide needles are mounted in groups on rockers.

7. In a mechanism as set forth in claim 1, in which combs corresponding to said guide needles are arranged on small arms provided on said rockers.

8. In a mechanism as set forth in claim 1, in

which said combs and said guide needles are fused-in in leads.

l5 9. In a mechanism as set forth in claim 1, in

which said combs and said guide needles are secured in recesses provided in carriers.

10. In a mechanism as set forth in ciaim 1,

spacing members provided at the upper portion of said rockers, the thickness of said spacing members corresponding to that of the lower needle carriers.

11. In a mechanism as set forth in claim 1, hook-shaped extensions on said rockers carrying said guide needles, said hook-shaped extensions being adapted for engagement in an intermediate member and in addition being provided with' lugs with which said locking and said shifting combs can engage.

12. In a warp frame or attachment for warp frames, high speed warp frames, double warp frames, Rachel. machines and the like for producing Milanese fabric with travelling guide needles, in combination, a stationary frame carrying the warp beams and connected to the frame of the machines, a stationary shaft fixed in said stationary frame, a guide needle lapping machine pivotally carried on said stationary shaft, means for moving said guide needle lapping ma- 40 chine, rockers carrying movable guide needles mounted in groups thereon, locking combs adapted to alternately lock and release said rockers, and means for laterally displacing said rockers after release.

13. In a warp frame or attachment for warp frames, high speed warp frames, double warp frames, Rachel machines and the like for producing Milanese fabric with travelling guide needles, in combination, a stationary frame carrying the warp beams and connected to the frame of the machine, a stationary shaft fixed in said stationary frame, a guide needle lapping machine pivotally carried on said stationary shaft, means for moving said guide needle lapping machine,

v rockers carrying movable guide needles mounted in groups thereon, locking combs adapted to alternately lock and release said rockers, means for laterally said rockers after release, a projection at each end of said stationary shaft, 60 vertical shafts carried by each of said projections, gearings connecting said vertical shafts at each end of said stationary shaft, an eccentric shaft, and means on said eccentric shaft for driving one of said vertical shafts at each end of said 06 stationary shaft, the other of said vertical shafts at each end of said stationaw shaft being furtner vertically movable and carrying pp rs for the end rockers released by said locking combs, I 14. In a warp frame or attachment for warp frames, high-speed warp frames, double warp frames, Rachel machines and the like for producing Milanese fabric with travelling guide needles, in combination, a stationary frame carrying the to warp beams and'connected to the frame ofthe machine, a stationary shaft fixed in said stationary frame, a guide needle lapping machine pivotally carried on said stationary shaft, means for moving said guide needle lapping machine. rockers carrying movable guide needles mounted 5 in groups thereon, locking combs adapted to alternately lock and release said rockers, means for laterally displacing said rockers after release, sleeves carried by said stationary shaft provided with bearing surfaces and projections, and an 10 intermediate member mounted on said projections of said sleeves and carrying two supporting bars for said rockers carrying said guide needles.

15. In a warp frame or attachment for warp frames, high speed warp frames, double warp .frames, Rachel machines and the like for producing Milanese fabric with travelling guide needles, in'combination, a stationary frame carrying the warp beams and connected to the frame of the machine, a stationary shaft fixed in said 2 stationary frame, a guide needle lapping machine pivotally carried on said stationary shaft, means for moving said guide needle lapping machine, rockers carrying movableguide needles mounted in groups thereon, locking combs adapted to 'al- 5 ternately lock and release said rockers, means for laterally displacing said rockers after release, sleeves carried by said stationary shaft provided with bearing surfaces and projections, an intermediate member mounted on said projections of 30 said sleeves and carrying two supporting bars for said rockers carrying said guide needles, bearings provided on said sleeves, levers movably mounted in said bearings and extending obliquely towards one side, connecting bolts carried at one 35 end of said levers, and arms on said bolts carrying laterally positioned shifting combs.

16. In a warp frame or attachment for warp frames, high speed warp frames, double warp frames, Rachel machines and the like for pro- 40 ducing Milanese fabric with travelling guide needles, in combination, a stationary frame carrying the warp beams and connected to the frame of the machine, a stationary shaft fixed in said stationary frame, a guide needle lapping machine 45 pivotally carried on said stationary shaft, means for moving said guide needle lapping machine, rockers carrying movable guide needles mounted in groups thereon, locking combs adapted to alternately lock and release said'rockers, means 50 for laterally displacing said rockers after release, sleeves carried by said stationary shaft provided with bearing surfaces and projections, an intermediate member mounted on said projections and carrying two bearing bars for said rockers 55 car ying said guide needles, bearings provided on said sleeves, oblique levers movably mounted in said bearings and extending obliquely towards one side, connecting bolts carried at one end of said levers, arms on said connecting bolts car- 50 rying laterally arranged shifting combs, doublearmed levers pivoted on said sleeves and carrying at one end said locking combs, said doublearmed levers effecting the motion of said obliquely extending levers aswell as the motion of said lock 55 log combs, a cross-head connection at opposite ends of said double-armed levers, a traction member connected to said cross-head connection and actuated from said eccentric shaft, and other cross bearings at the extended ends of said connecting bolts adapted to actuate said obliquely arranged levers for moving said shifting combs up and down.

ElflLWIRTE.

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