US2428030A

US2428030A - Structure for suspending a guide bar from a bracket of a warp knitting machine

Info

Publication number: US2428030A
Application number: US632014A
Authority: US
Inventors: Lambach Fritz
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-11-30
Filing date: 1945-11-30
Publication date: 1947-09-30
Anticipated expiration: 1964-09-30

Description

P 1947- F. LAMBACH STRUCTURE FOR SUSPENDING A GUIDE BAR FROM A BRACKET OF A WARP KNITTING MACHINE Filed Nov :50, 1945 4 She'e s-Sheet 1 {,3 ATTORNEY LAMBACH 2, STRUCTURE FOR SUSPENDING A' GUIDE BAR FROM A Sept. 30, 1947.

BRACKET OF A WARP KNITTINGVMACHINE' Filed' Nov 50, 1945 4 sne'et -sheet 2 I INVENTOR FRITZ 14/0340 BY fia .2. A'v ATTORNEY .ILAMBACH Sept. 30, 1947. F

STRUCTURE FOR SUSPENDING A GUIDE BAR FROM A. BRACKET OF A WARP KNITTING MACHINE Filed NOV 50 1945 4 Shets-Sheet s J ATTORNEY Sept. 30, 1947. F. LAMBA'CH 2,428,030 STRUCTURE FOR SUSPENDING A GUIDE BAR FROM A 0 BRACKET OF A WARP KNITTING MACHINE Filed Nov. 30, 1945 4 Sheets-Sheet 4 IINVENTOR fi'k/rz 14/?5/90/ ATTORNEY Patented Sept. 30, 1947 STRUCTURE FOR SUSPENDING A-' GUIDE BAR FROM A BRACKET-OF A WARP KNIT TING MACHINE Fritz Lambach, Te'nafly, NJJI' Appli'catiomNbvember 30, 1945, Serial- No'. -632,014

7 Claims.

My invention relates-tov textile :machines, and more particularly-1130 warp; knitting machines,

wherein'warpyarn drawn-from. warp beams is fed to the knitting implements bywarp guides carried by a pluralityof guiderbarsshiftably-mounted on spaced :brackets secured ;to .a :rockable' guide :bar

shaft..

Anobiectofimyiinventi'on is to provide a structure for suspending-a guide bar :from'a bracket of a warpknitting machinepftabove'described type, which requires ionlyyarsmall space-:so :as to avoid interference with-:the: warpgyarns :during rockingmovements of .the guide bar shaft.

Anothera cbjectofllmy invention is v,to provide a structure-for:.suspending3a: guide bar froma bracket. of'a :warp knittingq'machineof above described type; whichpermits aready disengage-1 ment ofthe guide .barfrom:therspacedbrackets secured'lto the guide. =bar sh'aft.-

A further object offmy-invention is to provide a structure for suspendingv a-iguide-bar. from a bracket of azwarprknittingamachine. of above .described. type, which permits :azready adjustment:

of the guide1bar.;relative:to-:the needles .of the machine.

In order to carry; out .my; invention :in prac-' tice I provide'a.:structure-forsuspending anguide 1 bar :from a bracket of fa 'warp;knitting;machine' havingia .series*ofqrspacedzbrackets secured to :a rockableguide' barrshaft extending longitudinally of the machine, saidistructure comprising a supporting element, attaching means for attaching 1 said supportingeelement to said-bracket, a hanger shiftably mounted ionrrsaid supporting element for shiftingnmovements inia'rdirection substan-x tially parallel to'the axislof said-.guidebar shaft, a guide bar,- carrier for acarryingsaid guide bar,

said guide bar carrier being ,adjustably mounted,

onsaid hanger-for adjustments-about an axis substantially parallel ito the .aXis :of i said guide relative to said hanger.-.

The-above mentioned: objects and advantages as well as .other objects and advantages will be more fully described inthe following specification reference being Shad toqthe accompanying drawings formi-ngapartof this specification, wherein:

Fig; lis afront" elevational view of a warp knitting machine according to the invention, some parts being 1 brokenaway and some parts being shownin section,

Fig. 2 is a verticalsectional view of'the warp.

knitting machine, taken on'line 2-9-2: of Fig. 1, some parts being brokenaway;

barxshaft, and holding m'eans-for holding said."v guide ba-r carrierrina: predetermined position:

Fig.- 3 is :a fragmentary :sectional' view taken on 7 line -33 ofwFiga 2 =:illust-rating--,'a:structure connecting: aguide. bar with aibraoket-secured to the guide -'bar-: shaft,

F g; 4 "is a :sectional :view taken; on line 4-4=-of Fig.- 5:is- -a perspectivenview':of-the movable element 'Off a safety device, and 1 Fig. 6isa-sectionalyiew takenion line 6"fi-of Fig; 1.

The drawings illustrate-the invention as .being' applied to a warp,knitting machine:oft a type known in: the -tradeasvfKayloom" machine," wherein one or more reciprocable filler thread carriersare arranged for laying filler thread substantially, arallel-to.- the series-of I needles and I wherein reciprocable vfiller; sinkers .are arranged for placingthe filler thread .laid by said filler thread carrier: or", carriersr-into :position to'be incorporated'into fabric producedlby the knitting implements act: the; machine fromwwarp yarns drawnfromrwarp;beams; it is understood, however, that the invention may-ialsorbeiapplied to other types *of: warpgknittingzmachines, for ex-' ample machines known-inthe :trade'as -Tricot machines-J Referring nowtto Fig.1, 20 generally: indicates the frame ofithewarp knitting anachine composed of severalrparts in any suitable-manner. A main cam shaft 22-.journalledwinisuitable bearings of the frame maysbe rotated by a motor- 24 connected with said-main camshaft through: a belt drive generally indicated -by:26.--

A series of filler; sinkers" 44' -(see Fig; 2) mounted onaa sinker z'bar 42- extending:;10ngitudinal1y of the machine andbeing;supp'orted-.bytsinker' bar rockers -32 :may r-be-rreciprocatedin a forward and backward direction; Acby'means .of l a' sinker bardriveq-(corresponding tether-sinker bar drive disclosed in j my 'copending,-;.patent: applications Ser; #617,537 filed-Sept; 20,,1945,-.and Ser.

#620,113 -.;fi1e d.-.Oct= 3,1945); which includes a: sinkeribar car-m2 8-.(F'ig.-z 1').- keyed .to the main camshaft 22 --for cooperation; with arroller 30- mounted 0n-a spring loaded reanwardly' extending arm: 3 l r of asinkerbar rocker-:32 tsecured-to a'sinker bar shaft 34'1-j'our-nalled inesuitable-:bearings of the frame 20;

Aseries of needles:fi l -isec Figsi11-and-.2)' carried-by:-arneed1e bar :62 i'extendingq longitudinally of themachine andzibeingqmounted on needle bar arms 58 swingably; arranged-- on an needle bar shaft" 60 maygberreciprocated in. an upward and downward direction Bwbyzmeans of :a needle bar drive (correspondingaL-tothexneedle bar drive ,i

disclosed in my copending patent application Ser. #617,537 filed Sept. 20, 1945, and Ser. #620,113 filed Oct. 3, 1945), which includes a needle bar cam 46 keyed to the main cam shaft 22 for cooperation with a roller 40 mounted on a spring-loaded rearwardly extending arm 49 of a needle bar rocker 50, which isloosely arranged on the sinker bar shaft .34 and is swingably connected with the needle bar arm 58 through the medium of connecting links 54.

Furthermore, the warp knitting machine comprises an endless band l28 of flexible material trained around two drums I30 and I32 rotatably mounted in suitable bearings of brackets secured to the frame 20. The endless band 128 is arranged for carrying one or more filler thread carriers I34 receiving filler thread I36 from a filler thread supply (not shown). The drum I32 is connected with a carrier drive generally indicated by i 33, which is operated by the main cam shaft 46 through the medium of gears (38 and 140. Said carrier drive corresponding to the carrier drive disclosed in my copending patent applications Ser. #617,537 filed'Sept. 20, 1945, and Ser. #620,113 filed October 3, 1945, causes periodic reciprocating movements of the band 128 with the filler thread carriers I34 mounted thereon in'the direction C of the longitudinal axis of the machine, whereby filler thread 136 is placed on stationary elements I04 for subsequent incorporationby the filler sinkers 44 into fabric produced by the needles 64 from warp yarns 96 drawn from rotatable warp beams (not shown). 7 7

According to Figs. 1 and 2, several guide bar cams 12 are keyed to the main cam shaft 22. Each of said guide bar cams cooperates with a roller 14 rotatably mounted on a rearwardly extending guide bar rocker 16 swingably mounted on the sinker bar shaft 34. A tension spring 18 stretched between the guide bar rocker 1'6 and a stationary point of the machine tends to urge the roller '14 against the surface of the guide bar cam 12. One end of a connecting link 80 is pivotally and adjustably connected with the guide bar rocker 16 by means of a pivot 82' adjustably arranged in a slot 83 of the guide bar rocker 16. The other end of said connecting link 80 is pivoted to one end of a guide'bar arm 84 at 86. The other end of said guide bar arm 84 is r keyed to a guide bar shaft 88rotatably mounted in suitable bearings of the frame 20. A series of spaced brackets 300 is keyed to said guide bar shaft 88. Five supporting elements 302 (only one being shown'in Fig. 1) are attached to each of said brackets 300 in a manner to be described hereinafter. A mounting structure generally indicated by 9Dis slidably arranged in each of said supporting elements 302 for reciprocating movements in the direction F of the longitudinal axis of the machine as will;be described hereinafter. The machine comprises five guide bars 92 extending longitudinally of the machine, each of them being secured to a series of said structures 90 in a row extending longitudinally of the machine. Each guide bar '92 carries a series of warp guides 94, by means of which the warp yarns 96 drawn from the rotatable warp beams (not shown) are fed to the needles 64. Above described guide bar drive 12, 14, 16, 8.0, 84, associated with the guide bar shaft 88 may impart periodic rocking movements in the direction of the arrow G to said guide bar shaft and the guide bars 92 with their warp guides 94 in dependence on the shape of the guide bar cam 12.

4 As mentioned above, the mounting structures 90, and of course the guide bars 92 connected therewith, may be reciprocated in the direction of the arrow F. The drive for imparting periodic shifting movements in the direction of the arrow F to the guide bars 92 and the warp guides 94 is as follows: 7 s s I A helical gear 402 (see Fig. 1)- keyed-to the main cam shaft 22 is in mesh with a helical gear 400 keyed to the lower end of a vertical shaft 398 journalled in a suitable bearing 40! of a supeach of said grooves has two substantially horizontal sections connected with each other by an inclined section. Each groove extends through substantially one-half of the circumference of the cam gear 396. The grooves 391 and 399 of the cam gear 396 are arranged for engagement with pins 394 of a pin gear 392' keyed to a horizontal shaft 390 journalled in suitable bearings 39! of the support 403. A drum 388 having five circular grooves 381 is keyed to the shaft 390. Five pattern chains 382 engaged with said grooves 381 are trained around said drum 388 and idle rollers 386. The machine comprises five carriages 316 (only one being shown in Fig. 1) slidably arranged for reciprocating movements in guides 318 mounted on the frame 20. Each carriage 316 is provided with a roller 311 for engagement with the elements of the pattern chain 382.

A spring 384 acting on a lever 383 swingably mounted on the support 403 at 385 and engaged with the carriage 316 tends to urge the roller 311 against the pattern chain 382. Each carriage 316 is provided with an element 314 detachably mounted on said carriage. Said'element '314 has a spherical portion in movable engagement with a spherical recess at one end of an adjustable connecting rod 312. A spherical recess at the other end of said connecting rod 312 is in engagement with a spherical portion of an element 310 detachably connected with a member 369 secured to the left-hand end of the mounting structure arranged at the left-hand end of the machine. A spring 380 stretched between the carriage 316 and said mounting structure 90 tends to hold the connecting rod 312 in engagement with the

spherical members

310 and 314. When the pattern chains 382 are advanced, the guide bars 92 secured to the structures 90 are shifted to the right (as viewed in Fig. 1) and to the left in the direction of the arrow F by means of the connecting rods 312 in dependence on the shape of the elements of the pattern chains 382. The ratio of the

helical gears

400, 402 and the shape and arrangement of the grooves 391, 399 in'the cam gear 396 is such, that the pin gear 392 and the drum 388 keyed to the shaft 390 carrying said pin gear are moved intermittently in two steps through two angles, each angle corresponding to the distance between two pins or one pitch, during one revolution of the main cam shaft. During the first step, the guide bar 92 with its guides 94 is shifted in one direction, and during the second step the guide bar 92' with its guides 94 is shifted in the opposite direction.

.5 secured to the bracket 300 by means of screws 306 passing through said 'sl'o'ts 304 and screwed into threaded bores of the bracket 380. A cylindrical adjusting element 308 rotatably arranged in a bore 310 of the bracket 300 is provided with an eccentric disk-like portion 312 engaged with a recess 3 l 4 of the supportingelement302. When the screws 306 are loosened, the supporting-element 302 may be adjusted in an upward or downward direction D by means of said adjusting element 306 Furthermore, said supporting element 302 has a recess 3; at its upper portion and abore 3 H3 at its lower portion. I

A pair of side bars 320 connected with each other by a connecting rod. 322 form a hanger generally indicated by 324. The connecting rod 322 of said hanger is in slidable engagement with said recess N6 of the supporting element 302.

A guide bar carrier generally indicated by 326 has a pair of upwardly extending

arms

328, 330 contacting the side bars 320 of the hanger 324. Each of said arms 328, 330' is provided with an

aperture

332, 334. The side bars 320 of the hanger 324 are likewise provided with an aperture 336, 338 respectively at their lower ends. A hollow sleeve 340 inserted into the aperture 336 of the left-hand side bar 320 and rigidly connected with the latter in a suitable manner extends from the side bar for loose engagement with the aperture 332 of the arm 328 of the guide bar carrier 326. Likewise, a hollow sleeve 342 inserted into the aperture 338 of the right-hand side bar 320 and rigidly connected with the latter extends from the side bar for loose engagement with the aperture 334 of the arm 330 of the guide bar carrier 3'26. Thus, the guide bar carrier 326 is swingably mounted on the sleeves 332 and. 334, whereby the guide bar carrier 32 6 may be brought into various angular positions relative to the hanger 324 in the direction of the arrow E (see Fig. 4). Upon adjustment of such a predetermined angular position of the guide bar carrier 3 26, the guide bar carrier may be held in its position relative to the hanger 324 by means of screws 344 passing through elongated slots 346 of the

arms

328, 330 and screwed into threaded bores of the side bars 320.

An engaging rod 348 is inserted into the registering bores 350, M8, 352 of thesleeve 342, the supporting elements 302, and the sleeve 340. A collar 354 secured to said engaging rod 348 by a screw 356 abuts against the surface of the arm 330 of the guide bar carrier 32 6, when the engaging rod 348 is in its engaging position. A looking element generally indicated by 358 (see Figs. 3 and swingably mounted on the arm 330 at 360 is capable of engagement with said collar 354. A spring 362, one end of which is inserted into a bore 364 of the arm 330 and the other end of which is in engagement with the wall 366 of the locking element 358 tends to urge said locking element 358 into the engaging or locking position shown in Fig. 3, wherein the locking element 358 is in engagement with the collar 354 so as to prevent a displacement of the engaging rod 348 relative to the hanger 324. The guide bar 92 is secured to the guide bar carrier 326 by means of screws 368. As will be readily understood, the shiftable engagement of the engaging rod 348 with the bore 3l8 of the supporting element 302 and the shiftable engagement of the connecting rod 322 of the hanger 324 with the recess 3l6 of said supporting element permits shifting movements of the hanger 324 together with the guide bar carrier 326, the guide bar 92 and the guides 6 94 in thedirec-tion F of thelongitudinal axis 'of the machineduring the operation thereof.

If it is desired to remove the guide bar 92 from the machine, the locking element 358 01 above described safety device is lifted about the pivot 360, so that the engaging rod" 348may be pulled out of the bores 352, M85350. The guide bar carrier 326 remains in connection with the hanger 324 by means of the

sleeves

340, 342 and the screws 3 44. After removal of the engaging rod 348, the connecting rod 322 of the hanger 324 holding the guide bar carrier 326 and the guide bar 92 secured to the'latter rests 'onthe lower edge of the recess 3l6. When all engaging rods 348'are removed from all structures in a row, the guide bar 92 with all structures -90 connected thereto may be lifted, whereby the connecting rod 322 of each of the hangers 320 is disengaged from the recess 346 open at the top, so that each'h'ang'er may be removed-over the supporting element 302 and the arm of the bracket 300 for a removal of the guide bar 92 from the machine,

For a mounting of the guide bar in the machine, above described steps are reversed.

As will be readily understood, the adjusting element 308 permits a fine adjustment of the guides 94 relative to the needles of the machine in an upward or downward direction. Furthermore, the 'swingable arrangement of the guide bar carrier 326 about the

sleeves

340, 342 and the adjusting screws 344' permit a fine adjustment of the guides 94 in a forward or backward direction relative-to the needles.

I have described a preferred embodiment of my invention, but it is understood that this disclosure is for the purpose of illustration and that various omissions or changes in shape, proportion' or arrangement in parts as well as the substitution of equivalent elements for those, herein shown and described may be made without -de-' parting from the spirit and scope of theinvention as set forth in'the appended claims.

What I claim is:

1. A structure for suspending a guide bar *from' a bracket of a warp knitting machine having a series of spaced brackets: secured to a rock-able guide bar shaft extending longitudinally of the machine, said structure comprising: a supporting element, attaching means for attaching said supporting element to said bracket, a hanger shiftably mounted on said supporting element for shifting movements in a direction substantially parallel to the axis of said guide bar shaft, a guide bar carrier for carrying said guide bar, said guide bar carrier being adjustably mounted on said hanger for adjustments about an axis substantially parallel to the axis of said guide bar shaft, and holding means for holding said guide bar carrier in a predetermined position relative to said hanger,

2. A structure for suspending a guide bar from a bracket of a warp knitting machine having a series of spaced brackets secured to a rockable guide bar shaft extending longitudinally of the machine, said structure comprising: a supporting element, adjusting means arranged on said bracket and associated with said supporting element for adjusting same in an upward and downward direction relative to said bracket, attaching means for attaching said supporting element in a predetermined position relative to said bracket, a hanger shiftably mounted on said supporting element for shifting movements in a direction substantially parallel to the axis of said guide bar shaft, a guide bar carrier for carrying said guide bar, said guide bar carrier being adjustably mounted on said hanger for adjustments about an axis substantially parallel to the axis of said guide bar shaft, and holding means for holding said guide bar carrier in a predetermined position'relative to said hanger.

3. In a structure as claimed in claim 2, said supporting element having a recess, and an eccentric adjusting element rotatably arranged in said bracket and engaged with said recess for adjusting said supporting element in an upward and downward direction relative to said backrest.

- "4. In a structure as claimed in claim 1, said hanger being disengageably mounted on said supporting element. V

5. In a structure as claimed in claim 1, said supporting element having a recess at its upper end having a bore at its lower end, said hanger including a pair of side bars connected with each other by a connecting rod, each of said side bars having a bore at its lower portion, said connecting rod of the hanger being shiftablyinserted into said recess at the upper end of the supporting element, an engaging rod inserted into said bores of. the side bars and the supporting element, said engaging rod being shiftable in said bore of the supporting element, and locking means for looking said engaging rod in a predetermined position relative to said side bars of the hanger, said locking means being disengageable for a temporary removal of said engaging rod from said bores for a temporary disengagement of said hanger from said supporting element.

.6. In a structure as claimed in claim 1, said supporting element having a recess at its upper end and having a bore at its lower end, said hanger including a pair of side bars connected with each other by a connecting rod, each of said side bars having a bore at its lower portion, said connecting rod of the hanger being shiftably inserted into said recess at the upper end of the supporting element, an engaging rod inserted into said bores of the side bars and the supporting element, said engaging rod being shiftable insaid bore of the supporting element, locking means for locking said engaging rod in a predetermined position relative to said side bars of the hanger, said locking means being disengageable for a temporary removal of saidrengaging rod from said bores for a temporary disengagement of said hanger from said supporting e1ement, said guide bar carrier being adjustable about the axis of said engaging rod, and means for securing the attachment of said guide bar carrier to said hanger when said engaging rod is temporarily removed. 7

7. In a structure as claimed in claim 1, said supporting element having a recess at its upper end and having a bore at its lower end, said hanger including a pair of side bars connected with each other by a connecting rod, each of said side bars having an aperture at its lower portion, said guide bar carrier having a pair of upwardly extending arms, each of said arms having an aperture, a sleeve having a bore being inserted into each pair of apertures in said arms and said side bars for connecting said guide bar carrier with said hanger, said connecting rod of the hanger being shiftably inserted into said recess at the upper end of the supporting element, an engaging rod inserted into said bores of said sleeves and the supporting element, said engaging rod being shiftable in said bore of the supporting element, and locking means for locking said engaging rod in a predetermined position relative to said side bars of thehanger, said looking means being disengageable for a temporary removal of said engaging rod from said bores for a temporary disengagement of said hanger from said supporting element.

FRITZ LAMBACH.

REFERENCES CITED The following references areof record in the file of this patent:

UNITED STATES PATENTS