DE1680830A1 - Sewing machine - Google Patents

Description

ELDOHF

NNMTRA TI! I.K PON flN2J «0

I) IPILING. IL MARCH PATENT ADVOCATE

'3 ο ο c h r ο 1 b υ η τ, for a patent search

of Dour'nboy Industries ^ Inc., OG9 South Main Avenue, Hov / Pichmond, VJisco /> sin / USA

concerning:

"Sewing machine"

The invention relates to ühnaschlnen and inabes special on In ^ ustricn'lh'nasehinen, which normally occlude f'.lr dna Socks can be used on paper, flcwcbo or plastic.

In the course of this review, ¹ ; the word "sack" is used, which means that the material is flat and should be sewn, regardless of its composition.

It was also common in industrial machinery to get the sack through the! r.hmanchine to advance gradually by the material in the trouble the needle ripped opened position -rehalt.en and bi3 was moved on to a new position. This step-by-step limit limits the Arbcitc ^ eschw.lnrlir'.keit the Ii.'Ihma3chine and is decisive in addition, the cause of γ broken jaws and other occurring » Error aw üihkopf. Lan must take into account that the Sack nchrittwcico am ü.'lhUonf is bewent, the other parts dea rj.ickerj uml its content, but in the usual way continuously medium and can be moved by hand.

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of the present invention: Is there a name? chine ΓΠγ eins Zunf'hen a see continuously moving 55ac ". it with a new and improved mechanism of relatively simple milli ^ er 'onstrultion and mode of operation.

Another Austrian market of the invention is an improved one

ti ^ n ^ s- and Pndenff'brun ^ snechanicmus in a M.'ilima » machine, with a continuous rev / e ^ unr of the cache applied will and with the Hadel, since it is during the "Phvor in dom Sack itself, pleichfflrmi "» «usannnen with the is moved in the direction of Siclrbev / e ^ un ^.

Another Hey ^ enstand the rrfindun "· ict an i: ihmaschlne that an ^r> ouble '' ettemfcteh fflr generates the Vernchllefen the bag top, with a novel mechanism to F, the f'lhrt?.

The ^ rfindun ^ s ^^ arose v / iri described in detail below with the aid of the drawings referred to. .Tn the drawings The same or similar parts with the same symbols are used

". 1 shows a perspective illustration ¹ : the

Fi ^. 2 is a front view of the nT, '. • robßi the ^ rontplntte has been removed, and some sections are "fe ^^ broken and in section ^ at the time to clarify the details,

Fi / r. 3 is a ver.rr'JPorte representation of a detail

in a section Utn ^ s about line 3-3 in Pir% 2 ^v

Fir :. ^ is a cross-sectional view of a detail of L'inrts about the line Ί-Ί in ¹⁷ Ir *. 2 _t

Pii ;, 5 is a broken sectional view of a detail taken about a line 5-5 in Vi ** ,. «?,

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? i,;. 6a, 6b, 6c, 6d

are greatly enlarged sectional views of a Detail and lines the Hadel and the Schlin ~ enf / in ^ er essentially in the manner of the representation of the figure. Ί and successively illustrate the relative positions of the needle and the loop -err. at different stages of an operating cycle, Namely with the S ', ellunr, en 0 °, 9o °, 18o ° and 27o ° of the cycle,

Ti. 7a, 7b, 7c, 7d.

r.jnd starl: enlarged views of a detail approximately in the direction of 7-7 of the fi?;. Ί and illustrate the relative positions of the girl and the bow line f * .n ~ , Animals at different stages of the operating cycle, Namely at 0 °, 9o °, 13o ° or 27? the operating cycle,

^ ir ;. F · is an enlarged sectional view of a single i hcit etvia l ^ n ^ -s of line 8-3 in FI7 ,. 2,

? i ~. 9 is a greatly enlarged sectional view of an iris unit from a section of Icchanismus approximately at 9-9 in Fi-. 1,

^ i-.Io is a bottom view of the machine with partial we-broken sections to get the details to make clear, for example at lo-lo in Fi ^. 2.

One embodiment of the invention is shown in the drawings. -cr.tellt and vi are described below.

The mower, as a whole with the reference number 15, comprises a frame which - as shown - consists of one part, so that all bearings and moving parts are assembled to one another in a pre-determined 3 direction "can. the" judgment Ιό includes a (! ehiluse for Betclti ^ unrismechanisnus the "achine and tr.. _t it a fixed cover 17 when the machine-in is operational. the cover 17 is at άοτ. fu ^ part or re'i "usetell Iu

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fastened with a thumb screw 17a, which - when removed - Allowing the entire lid and two threads 18 and 19 to be moved aside so that the inside of the machine can be serviced can, for example, for any necessary lubrication. A second cover 2o covers a portion of the housing or outer part 16 and, when it is removed, exposes the loop film control mechanism, designated as a whole by the reference numeral 21 is, as well as the Schlinsenfäner thread guides. The lid is watery a pair of permanent magnets 2oa, which - when the cover is in place - interact with magnetic rear closure parts 16a in the housing. The lid 2o can be easily and simply removed Ground without the thread guide of the sewing machine being Restorted by simply sticking to the protruding section 2ob of the cover is pulled.

The threads 18 and 19 are fed to the sewing machine from bobbins IGa and 19a, which are carried by a retainer 22 y »; this can be attached to the Oeluse 16 in any way. A fixed thread guide 23 is also on. attached to the housing 16, and equipped thread guides aup; en or openings 23a, 23b and 23c to start the needle and sight lines 18 and 19 the guides 2k and 25 on the front of the cover plate 17 feed.

The Fadenführunßswej * 2 * 1 has a pair of guide shoe 2 * la 21b, which are befestijt to the cover plate 17 and ^ ffnun-en besitztn for carrying out the Madelfadcns 18 so that the ^ aöen 18 in the Fadenvorspannungsglied 2 ¹ Ic einj5eführt is ₉ the adjustable tensioning of the thread n; em?. * Ss the setting of the lock nuts 2id. An additional thread thread (lhruni; s block 2Ίβ leads the thread from the pretensioning device to the head of the thread.

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φϋ *

The thread flow 25 comprises a wire guide block 25a and a face biasing device; 25b, which act on the bobbin thread a pretension bi3 to a new degree depending on the setting of the lock nuts 25c. Usually only a minimal amount is applied to the lock thread 19 Bias applied.

The sewing machine is connected to a rotary drive, for example via a V-belt 26, which is driven by an electric motor is driven. This has such a speed that it the pulley 27 on the housing 16 at a speed of capable of driving approximately 1,725 rpm to 2,2oo rpm.

It has been found that the sewing machine according to the invention is satisfactory within this range of speeds is working. The power transfer mechanism of the sewing machine transferred the rotary motion to the loop catcher unit 21 and " to the mowing head 3o with a speed ratio of 1: 1, so that the machine has the same operating speed as that zup; e performance. ; '

The rotary power is transmitted via the belt pulley 27 to the input shaft L7a and then via the presetting on the Ge ;; enwelle 23a, which is a roller and sprocket unit 29 drives at such a speed that the circumference of the roller 29 a tank speed of about 12.7 to 16.5 m / min, owns. ·; · '\

It should be noted that the shaft 28a and the Rollevj? 9 are rotate continuously to the sack or the fabric or the sheet material B continuously through the ll.'ihkopf 3o with essentially transport at constant speed. The role 29 has three distinct areas arranged side by side on its perimeter. The middle area 29a is>, er. Tndelt and the two outer ones peripheron areas are toothed, as at 29b, so that

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they act like a sprocket. The central n; tndelte area 29a of the roller 29 is arranged opposite a movable clamping roller 32 in such a way that the sack B is passed between the lobes 29 and 32, clamped tightly and driven by the knurled surface of the section 29a on the roller 29. The circumference of the roller 32 is preferably also knurled. The roller 32 is rotatably mounted in a movable Trar.bloek 33, which in turn is fastened to a holding rod 33b with an adjusting screw 33a. This is performed a Lagerblccks 3 ^'1 for sliding movement in a bearing opening 3 * la, the hmen R.-on or casting 16 gem? Fc Fig. 5 is attached.

The holding rod 33b carries a fixed projection 33c and a spiral compression spring 33d acts against the stop 33c and also against the fixed stop block 35 which is attached to the frame 16 and which slidably receives the support rod 33b. The feather 33d exerts a pressure on the support rod 33b, 30 that the roller 32 is constantly pressed against the roller 29 and thereby the bag B zv; Ischen these two firmly clamped. ■

The toothed belts 31a and 31b are also over the roller 36 guided, which is also toothed on its periphery, in order to hold and guide the toothed belt. The toothed belts 31a and 31b are also guided around a fixed slide bearing 37 which is adjustably fastened to the frame or housing part l6 by means of the bolt 37a

The roller 36 is in a slot IGc by means of a hat 36a de3 Rahtfmens or OehSuses 16 attached so that it can be adjusted to a desired degree.

The relative relationship of the rollers 29 and 36 leads to one another the toothed belts 31a and 31b through the HPhkopf 3o, in order to carry the sack 3 through in cooperation with the sack clamping unit drive rollers 29 and 32. It can also be seen that the sack

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^{conveying r1} rums the toothed belt over a fixed support plate 3 ^,! -Un on 'lom frame 16 bcfcsti'-t is to be guided. The otützplat · to y, has a lr.n ^ liciien slot 33a, as well as receiving grooves r \ r Jie toothed belt 3Pb which Each lateral Bev / o ^ UNR prevent the toothed belt. The circumference of the roller 29 produces an essentially identical transport speed of the toothed belts in and 31b, which the sack rests on and from which it runs des Thvornan r, o s is transported, ^ s has become, ςβζοί jt, ü; \ ^r - the ^ cwfinschto continuous ^ evegunp; of the sack .3 can be achieved even if the conveyor belts 31a and 31b have been avoided by outputting a rotational force to the upper roller 32 which is located on the drive roller 29sc3enilber, the rotational speed being equal to that which the Role 29 owns.

For pressing the sack of bare shoulders, use the straps as long as they hold the To transport the sack through the milling head, devices are provided and in the embodiment shown, the pressure

Irrigation is effected by a solid elongate plate or foot 39 which ■ is attached to the La-; erblocl: 33 and is movable with this in 'Direction of the toothed belts 31a and 31b. The front Ab-γ ι cut 39a of the foot 39 is p; enei, r; t, so that · * the leading edge of the Bag B quickly into the space between the toothed belt and the foot is pulled. The foot 39 also has a rural one Slot 39b which is vertically above and in alignment with the slot 3Sa on the heel plate 3 & is arranged.

The Hühkopf 3o receives its drive power also from the Eincan ^ santriebsv / elle 27a, on which a pulley ¹ Io is mounted. The drive belt JJoa and a driven ^{pulley * lob are connected to a drive shaft 1} H , the end of which is in a suitable position ζβη run in flehüuse or frame 16. The drive belt * loa is preferably toothed on its inside and the disks ¹ Io and lob are also toothed on their circumference and act as chain wheels

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for the maintenance; der ^ ev; ünnchten between VJellen 27a and ¹ Il. A rotating tensioning disc '»oc is also adjustable on the frame and k.'. 'Mmt with the p; ezr.hnten drive belt ¹ IOa. The Trienv.'elle ¹ Jl tr``r; t at its end a crank arm ¹ Hb, which is rotatably connected to a reciprocating drive. ^ L \ 2 . The other end M2a of the propellant is for a Schwinp; bewecunr * connected with a bearing pin ¹ 13 on a driving claw which is attached to the needle bar. The inner end of the sewing needle 5 is attached to the needle bar ¹ I ^{1 I by means of a conventional needle fastening device 1} I ¹ Ia. The needle bar causes a to-and-fro movement and the handle in its length. ⁵ no; s direction and also an Ouerbewerunn: the Iladel Ί5 in the direction of the Sackbewe. ^ Un ^, v: ie in Fir. ¹ I indicated by the arrow A.

The needle ¹ 15 has at its front and rear side grooves 45a, and also a naueiönr · ¹ I [Jb in the IP'.he their acute Ende3.

The needle bar W has its outer earth section in a La- - ^ eruno; Wb for a sliding and limited swinging movement, in a direction transverse to the Uadel.

The inner Enda'oschnltt der üadelstanr ^ e ¹ I ¹ I ^ iSt r ^ r ^ divisible in a register 16a ~ elar; ert, represents, is in a La ^ erbock '46 for a limited Gchvilnrrbewe ^ unrr. The La ^ erblock ¹ Ii bev / e ~ t linearly back and forth, first in the lichtun * ·, the arrow A and then in the ~ ust opposite direction, d ^ P> it a P; ewe ~ un "; the Uadel Ί5 in a Tichtunr; generated transversely to its I / 'n ^ e.

The Larerblock ^ 6 is of an extended sliding guide -retrain, which is located in the Oleitblock 3 ¹ I, and this includes v / ird. The Olcit Guide; 'I6d has a separate section Ί61. with olner shoulder ¹ IGc, n ^c ~ en the land of one

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Compression spring '»7 drains. We spring ¹ W is in a recess dos Hoc'-s? '! on ~ enormous ur.cl .las other bark of the compression spring .ntO »- .: 5t:>. 1ci.i: o- cn an adjustable anchor ^l \ ° a on a Gevrindebol ^ on 'Vh -'b, which in oine : i 'tonta ~ eblock ¹ H on which took 10 one-floor more ρ is practiced. 1? N recognizes in FIt .. T>, then the Dlocl: ^ o from the rtcUun;, which is indicated by the full line, up to 3-ntellun · is movable, which is indicated by the dashed line ir.t and sonit an ouerboue ^ un ^: der: iadel '»5' nervorrufuf.

'.: E-un ^ of "'! The Co locks Ίο and 'tocielstan ^ e Ί' vrird by oinen '.'ocken ^1H beviirkt, which refers to the' parts * J1 in !! 'ihe dot; ; 'urbelrime3' Ub is located. The Iloclisn * J9 -I rotates continuously neneinnan with the 'TelIo 4l, and a üockenfolrer 5o presses d-uicrm''* e. ~ en the infanr; of the Ilockens '19, so claP. or under the :: inPi.u ?. dos llocheno swings. The l! ocl: enfol-: er 5o is at an i'.nr ⁿ on 51 ", ol- ~ ..; ert, which is in the" .you or housing Iv fastened, and ^ nn ent ^ er-enricnetste ^ .ndc des lOnkcnfol-err. tr? '^ t a Steuerr.tanio ^Γ ) θη, which -leitbar in a Schv; in-lT-or Ί6ο, d ^ s from the Ii »-rr'.JiocV Ί £ ^ etm ^ cn vflrd, is held. Uenn der! Lure ^ 9 u: nl "uft, r.chv. '. Tn.tt der'.! Ockonfolr.er 5o un den La ^ ar ^ nfen 51, un elno linerre" etrer.itnf, don la ^ crblocks * »ό create zn , v; obei -, leichzc it ir; dJe tiartcl «ucr is v-epted for their irnr.o. Ls is inshesonlere fostzuntellen, dn ^ from the time when the itadel ¹ I ^ sicli in • Jar. ne-'nbn dor, Backes D inbewc ^ t, the Madol in de ^ i laterial des Ζηο'.ιηη ff'r nnn'ihernd 2io ° des iievje ^ unf.azyklus der !! ''. lim machine remains, after which the üadcl out of the sack again; ezo ~; en viird. Dior. Er'Ol-.t w'lhrond of that period of the operating cycle in which the needle is sunk into the fabric of the sack, the Madel Ί5: jlch transversely in the direction of d <~ s! 'foils Λ, what the! Uchtun ^ which corresponds to o.-tckbov / o ^ unrr, and with an Oocehwindinrkeit which is essentially equal to the constant ttawe ^ unrra ^ oschwindi-tkcit dec Sackes ύ Int, no daft essentially koine Relitivbowc-, unr, between the needle 15 und dom SacV U In a nic'itunr: transversely to the lindsl 'l'i.

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- Io -

The cloltbev / e ~ us of the calf stiffness, which is caused by the crank arm 'II, generates the flbllchehln- and hor-ehonde movements, the üaiol ^J 15 into the sack, through serving through, and nus this learning, so Ia The thread is led in and through the sack in order to: o produce a double-knit seam in cooperation with the r, chllnr; erif.'in <he and then to produce this iden 19.

The closing film equipment; 21 encompasses the iJchlin, cnfilnrer 5 ?, which carries out a sliding surface between 'indstcllun-en ao-.iio a fore and r'lc'.i' ./ itrtsachwin. ^ Beue ^ unr;, so that "· "r first l ^'{n ~ 3 is moved prior to the front side of the Üadel Ί5, then Lan ^ s behind the rear side of the needle-M5 in a movement which is typical f ^f lr sewing machines that produce a double-chain stitching, as normalenieise for the Sewing of gaps is provided so that the mowing can be opened again ; ie a PadenPhr 52b.

The loop catcher 52 is connected to a swing arm 53 which is attached to a swing arm 53a for a C ¹ IeIt and Schwinr, hewe »-, unr; in a La ^ .erCffnun. ·· 5H is mounted in the stalks. The Schwincsbeue -under 'skins 53a and the arm 53' by a Jird feetes yoke 3R at the Schviin ^ / elle 53a caused comprising a pair of perching f ame oil -OR 55a un d trl'r 55b. T, the re each other ~ en '*) are arranged above and met guide plates 55c made of bronze or other storage material. The ilocUenfol- ^ erarme cooperate with each other -e ^ en protruding sides of a cylindrical motation eccentric 56, which is attached to the; £ inr; anr; santriebsv / elle 27a and driven by dleeer, ι lan recognizes in Pi ~. 3, that as soon as the v-shaft 27a rotates, the yoke 55 sways back and forth under the influence of the internal gear 56 and thereby causes a flip-flop 53. Tn ". I- ,. you orl.cnnt, 'laf>the' Ixzontor a l ^ n '- llciio has orn zylindrlne'ie ^I7, 30." a ncvfC.. "Unr: the yokes 55 In a nichtunt between the indon Jcr VJolle 27n ttnd the Kx "nntern 5 *"crm.'V'.llcht.!> leso. «wc: *. ui ·. about,

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η ι

Joolies 55 vrirc? ciurc '-ii? Etol- \ Jim- indicated in dashed matrices; the; Yoke 55 shown, v / as corresponds to the amplitude of the Bcv / erun-: '{ cos: Jchlln;: cnf "nr: ers 52 and the Schwin. ^ Wave 53a. |

The Γ · ον: ο (* ιιη. · '·· der Schwln ^ ellc vrircl caused by a cylindrical J''xsenter 57, which is attached to the drive shaft 27a,' and in one! 'Age 57a, which sits transversely only '..' hurry 27a movable | ^! ~ t when the V.'elle and the! curl 57 turn. Hs v / ird a f

f ¹ owe. · ιιη ~ of the connection 5 "generated and a ^{; r} urbeln.rm 59, 1 that is attached to the housing IC by means of a stanre Co , v.'ird 1 • ibor di (? Vcrbindun ~ S3tan ^ e 5c to a universal tunnel ": or | a Τ, -i ^ er 59P- transferred. The other end of the ^ ring 59 is nittcls for a- universal 591- nit the end (.'er Schv.'in ^ wellc 53 ?. so I connected, d ?. ^r > a Jetjenun ;: between the Endanschlä.-en des. ^c chlln- ί r: enf: "n ^ ers in." cziehun ^ to his Schwln ^ bewc ^ un ;; generated v; ird. lie- co-ordinated 13ev7e ;; below the !! ede 1 and the £ chlin- -enf: 'ln ~ er3 are shown in the 7Ir ;. ^ a to 6d and 7a to 7d, and although these relationships are shown are without there. "The fi'.den in dex '^:> Iadel und tfem Schllnrienfi'.n ^ er are given, the skilled person will nevertheless, owing to the similarity of these bcv / egun .-' s with those there - e * .i! 31: namely, Uadel- and. '■ cilir. ^ enf: -n ^ erbevfe3unncn in other exec-'lhrun ^ en understand how the two n cooperate here. Let’s be so much better,

der ^T ie;, - inn dos Bev / eRiinrs cycle (0 °) in the position presupposed]

•: irci that appear in the Fi _: ~. 3 and 4 is shown, the Uadel!

has reached its point furthest from dom Sack and ■

der Kurbarn - ¹ IIb Ir one of these. Position is that the connection j

^} \ 2 is parallel with the needle bar ¹ st. i

In Fi ~. 6a recognizes that the needle Ί5 moves us downwards and forwards in one view; as indicated by the arrow M. In pi ^. Whether ahead the Uadel ¹ J ¹ J is still inwardly downwards, but at this moment it has a!? ewer: m ^ skonnonente in the direction

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- 12 - I.

of the arrow Λ and at a speed which is the same as that of the Bevje ^ unEa ^ eschwindinjkeit ^ ₆₃ sack Q ₁ so that the needle also moves downwards in a curved path, as indicated in the Wesrint by the arrow 0 in Fir, * 6b. At 130 ° of the β-drive cycle the needle is through the sack up to its maximum position. ^ elanr.t _uru j ^ _n this moment has the Hadel no vertical component of DevierjunR more, but soon after cen ~ onau shown here moment in Pig. 6c the needle begins to pluck out of the bag B. In Fi ^ ;. 6c, the needle moves essentially in Ouerrichtuns, almost in the same direction as the direction of movement indicated by the arrow Λ, but in a slightly curved curved path, as indicated by the arrow P.

When the needle is now pulled out of the sack 13, it still moves transversely to its length in the direction of the arrow ft, so that the direction of movement of the lid 15 is curved in this outward view Bahn folrrt, etv ^ a in! ^ Ichtun ^ of the arrow O, in Fi ^ ,. (Λ.

It must be repeated once more that the "Jevrerun ^ der Needle '45 not open. he really high "eschv.'indi ^ Ueit success ~ t ^ etvra 1,725 to 2,200 cycles per! Linute.

"! ac'.dem the"> ^r ac (el ^ 5 out of the sack 3 ^ e ~ has suffered, be sic slide in a direction which is set in the direction of the arrow A ont.-e ^, while at the same time moving upwards in the direction of the 0 ° tunnel ""; em- ^f? .ß? ip. 6a, so that the needle was prepared to deal with the surface of the sack in a new position ^z ". The purest dogs of the ouerbewe- ^ unG der üadel shd roughly indicated in 7I? .. 6b and 6c, and in the Fir, 1 is the relative position of the Uadel, v; onn she is about to ride into the sack, and when she has just left sack B, depicts it in dashed lines and denotes '15' or '15' *

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IV

The Ouorbewe; unr; the ü.idel '15 is in the Pi- *. 7a to 7d do not recognizable, but here is the movement of Schlin. ^ enHnsers 52 clearly shown.

'Jonn die Madel '15 «rem.'W Fi ^. 7a moves down, reverses the loop catcher 52 from the rest position into the position shown in FIG. 7c shown position back, where the loop swings backwards, so that it subsequently extends on the back of the Madel, as shown in v: e s borrowed in the pi. ",, 7d and 6d, l / enn the girl is pulled out of the sack, the loop catcher 52 '/ swing leather in front of the front of the needle in a way which is known to the tling machine specialist.

It should be noted that the extreme positions of the snare catcher 52 not necessary. Travel to the fir ;. 7a to 7d are shown are as these pi- ;. especially the representation of the relative movement ^ to serve.

The mower is marked with an F, inricht below, indicating the presence of a sack moving into the gap of the mower by the action of a belt conveyor C and these devices include a movable bag sensing bar 6l in the mower dc3 foot 39, the -m swivel arms 6la and 62 is attached, both around bearing pins 63 in the frame or housing l6 schv / ln ^ bar are nela ^ ert. A return spring CPa is connected to the arm 62 and on the other hand at an angle 62b on the frame or housing 16 eincehanrjon. The arm 62 rests on the position button 63b of a microswitch 63a, which is connected to the motor, which provides the drive power for the belts 26 and the pulley 27. It will be seen that as the bag moves 1/2 / s the belts 31a and 31b move and comes into contact with the uterus 39, it is the sensing position pushes aside and thus operates the switch, so there starts to run. Da3 sewing the sack starts as soon as the sack under the needle ^ c

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The mower is also provided with a mechanism that cuts the chainstitch thread after the rear end of the jacket B has passed the needle 45. This device comprises a fixed guide plate 64 which is screwed to the housing Iu of the machine with screws 64a. The block 64 has a guide edge 64b for the sack, which is arranged in such a way that it can be slid into the new path of the sack compartment; protrudes, there, v / o the sacks come out between the rollers 29 and 32, in that the sack ü changes its direction of movement about 3 and now slides along the surface 6'lb. Vfie especially in FiR. It can be seen that the inner edge 64c of the guide block 64 is in close spatial proximity to the outer surface of the toothed belts 3ia and 31b, so that it is ensured that the sack B will slide over the surface 64b. A flat leaf spring 65 is over it the toothed belt 31a and 31b and the roller 29 and its edge is normally in pretension; * esen the guide <* sf surface 64b ^ eletzt so that the spring is deflected and is lifted from the guide block 64 when the bag D is along its normal web is moved, the spring 65 has a slot 65a, which normally receives the roller 32 and the spring 65 is formed on both sides of the roller 32 for maximum contact with the bag B a HVXfsfflhrung 66 is attached j framer:.. or Housing 16 is provided, as it were as a continuation for the front guide surface 64b of the block 64.

The guide block 64 has a recess t> 7 in its upper section and is in alignment with the roller 32 and with the central knurled surface 29a of the roller 29, so that the recess 67 is also aligned with the needle 45, so that - as in Piß . 9 recognizes - the seam S in the sack B over the recess 6? runs. In a similar manner, the chain end S ^{1 also} passes through the recess 67 after the rear end of the sack B has slid over the guide block 6H and is pressed downward by the action of the leaf spring 65, which, after the sack has passed the spring 65 has reached, presses down on the surface 64b of the guide block 64, so that the chain of the thread S ¹ arrives in the recess 67.

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168083Q

Cinema dor upright screen edges 60 the Au5nchmun3 67 has the. ⁱⁿ front of a sharp 3tation, '^; Ren anvil edge for the 2ur>ammonv; irken with a cutting tool: 69, which separates the warp thread S ¹ in the recess C 7. The cutting tool 69 has a cutting ante 7o tenn-ender L ^f '.nr: e, in order to dry itself to the upper bark of the j ante υ <3. The end portion 69a of the cutting tool 69 behind the cutting edge 7o is gently rounded so that it can normally slide next to the sack B and lift the sack! 3 off the surface at any time when the cutting tool 69 is across it ¹ IIe seam S in the sack is together with the sack 3 a'ore '> above and r \ io cutting edge 7o has no VJirkunr on the Uaht in the sack. The cutting tool is moved to the recess 67, in a shear' * Similar effect to the ambo ".kante60, while" every operation of the sewing machine, so that as soon as the chain of the "adens falls into the recess o7" it is immediately separated, and;: v. ' ar in dor * .VV <: c the middle of the sack B. The cutting tool 69 is operated by a connecting link Ö9b, which is steered on a crank arm 5, so it is by the crank arm 59 from the eccentric [37 nit botüti ^ t uird. The Schn.ttvierkseu ^ 69 is swinging ^ eln-t ^ rt in don "^ - 'iiirun ^ sblocl: G ^ on a pin 78.

V. '"During the operation of the sewing machine remains v:?' During. Each" operating cycle. the nadel v;: "hrend etv: a 2 ^ Ιο ^{ο the} same in the facl :. VJ.'Uirend of this entire period before the nadel moves across to its I / ln ^ -e and in the direction of the Sack, which is continuously moving under the ^ inv.-irkunn of the should 29 and 32 so: ie the toothed belt 31a and 31b. The ouerbev.-e ^ un ^ the needle s? .T a speed which in Essentially the same is the continuously moving Saclros, which leads to the fact that the transverse loads of the aristocracy are depressed in Mininun and are depressed to the ground work long, with a minimum of broken parts and other wear and tear of the moving parts. ¹ I ¹ Ib moves, which ^{lies above the crank arm 1} IIb. The tladel and the maggot rod swing from

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dor 'iittellinienstellun' :, the liadel first forward in the direction of the position 'J5 ¹ , which is indicated by dashed lines in Fl ~. ¹ J indicated int, UTi an angle of about 1 1/2 to 2 °, after which the needle enters the sack. Wihrend the Madel is in the bag, the lass and the needle bar swing rflckw? 'Rts, wherein the arrow of Führunnsblockes rio in the direction \ together with dom bag move in the direction of the dashed line position indicated in Fi ^ _c 5 shown until the Madel and the needle bar have an angle of about 1 1/2 to 2 ° back from the center line position, after which the needle is pulled out of the sack and swings back into its normal center position.

In one embodiment of the invention, a seam with 1.35 stitches per centimeter is made in the sack. The mines from about 12.7 to 16.5 m / min, can easily be carried out with about 1,725 to 2,2oo 3 operating cycles nro flinu ^ te.

Fs is to be noted that due to the fact that the liadel is for about 2'lo ° Uetriebszyklua of the bag in which • - ', eradlini'Te ".evre un ^ ?; of the needle bar ^{1 4} J I and the Iladel ^ 5 is suppressed to a minimum between their constructs, and that similarly the linear motion of the Schlinn; enf '% nr; ers 52 and the corresponding bevel and the Schwin ^ -ial 53a between the ends are reduced to a minimum are.

The tucking of the sack while the sack is in continuous motion is obviously advantageous in that most sack conveyors and conveyor belts C, as in FIG. 5. 1 shown, move continuously, so that now the upper part of the bag 3 can move continuously through the Mähma machine, so undesirable tensile stresses on the! Iihmechanisnms have been avoided.

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It has already been explained that the front panel 17 can be completely removed without having to unthread the machine, and when the cover 17 is put back in place after servicing the internal mechanism, all that is needed is the thread 18 to be threaded through the ^ Uhrum; söhr I ¹ Id, which is located on the needle bar 'I ¹ I, as well as through the ceilingΙοffnun 17b and then directly through the needle eye, as shown. The loop catcher thread 19 only has to be guided through the guide ₍ -söffnun-53b in the ski; enf forearm) and then through the eye 52b in the loop catcher.

In the inventive cutting mechanism, the bag is sewn while moving continuously at a constant speed through the inflation mechanism, and the closing of the bag is performed while the bag is moving. The needle moves transversely to its length while it is in the sack, and with a speed which is essentially that of the sack. The tladel wUhrend about 2 ^{1 0} Io will keep the Ftetriebszyklus in Gack ^, the required I / In-sbewecunG daft the needle on a linimum down '-. Is edrückt. The Huerbewe unc-Ma-del is erzeur.t by a Hocknn so that the üadel in the bag during the. • rtfßten Teile3 of 3etriebszyklus may remain and then r.chnell returns ru form a new Gtich when winder is stabbed into the sack.

209818/0076

Claims (1)

IS * "* 1. M.ir machine fflr the sewing together of sacks with oine.n _s took a rotary drive, oinea 'Vl \) opf to which the Drehtß .-.'C-un;;tifeirrtr.v; en is and the means of transport cries, which transport the sod: -re 5 Con unl through the üähkopf, with a needle bar in the Mithkopf, which a thread moving j back and forth through the sack bcrtoevir ^ tc · Madel tr ^ l ^ t, and with a thread-leading .Ichlin ^ enfn ^ er, fJsy pm. the departures sdich and herbewc; $ cooperates needle to cause da ^ Zn sanmenn.'lhen of the bag, characterized -ekennzeichnet ,, as "the Transnortelnrichtun ^ s 3I move continuously υα the bag continuously through the Ilähkopf to. transport, and that "a cam-type device an ouerbevre-un ^ the Madel ^ rIe ichfömir, with the Bewesun"; Oes sack is produced, the liadel extends through the sack. 2. Mi-Ihmaschine according to claim 1, characterized in that there?} Σίΐβ needle cyclically tr into the bag and for this herausibev / e ^ _s rd so that ^n!> It during about 2 ¹ Io ⁰ of the operating cycle in the bag located, and that the r; leichf5rnii. ~ e ^ uerbewer ^ inr; the Hadel hoeammen with the sack vrilhrend etvra 2 ¹ Io ^{0 of} the operating cycle in the üici ^ tundes Snc!: it takes place. · :; 3. sewing machine according to claim 1, characterized by a Läf? Erun.?; the outer end of the needle bar and for the Lr.nnnhin- -herbe tie ^ noncircular 3chwinßbevie. ~ un.r ·, thereof, and by a "" ¹ sliding of the inner end of the Hadelstanr.o on which the lass is fixed, whose fflr O.uerbev / e ^ un, ^ together with the sack. Ί. Mower according to Claim 3, characterized by a rotating Crank that reciprocates the needle bar with the linden tree 1 causes and with dom cam for a Drciibowe.-iunr; with demselhon Connected int, aowie by a swinging üockonfolr ^ er, the rotatable Im Kalmen relar.ert is and with the nieltführunf, ally is to cause the cross-applicants, the Madel. 2Q9318 / Q07I 5. i .'- hmaschinc according to claim 1 with a U.'lhstaticn and a transport station that pulls the sack from the üähstation from and through it, with a handle that guides the thread and moves back and forth through the sack carrying needle bar at the ulh station and with a thread-guiding loop catcher at the hih station, which cooperates with the hilt that goes back and forth in order to sew the sack together is offset from the station wec and a pair of continuously rotating, the sack clamping and driving rollers that are aligned with the handle and also pinch and drive the bag while the sack is zoren through the milking station, and that after completion, the lfa'.it in the sack is pulled off the thread chain from the needle and the loop catcher. 209818/0076