DE7004047U - DEVICE FOR THE PRODUCTION OF NON-WOVEN NET FABRICS. - Google Patents

Description

PATENT LAWYERS

DR. E. WIEGAND DIPL-ING. W. NIEMANN DR. M. KÖHLER DIPL-ING. C. GERNHARDT

MÖNCHEN HAMBURG

phone: 3953U 2000 HAMBURG 50, * -A

TELEGRAMMEiKARPATENT KONIG STR ASS E 28 '·

V. I 4b 2b / ο \) ü / i

Isere-i'jord,

, i.'ord (rrarikreich)

". orrIc:! tuiK for the production of non-woven

i.etzütof f ei ;.

n ^: i. refers to the manufacture of -extiistoi'f e :. and in particular on a Vorricntung for; -. first_. ung von nic: .t- _£ ; ewebten: <"etzstof f en.

Oolciie "non-woven fabrics are used in large ^: Jm- £ zii (C as V er star." IUr ₁ / in various ocJcichtprodukte, such as -oliei. made of a synthetic polymer, paper stretcher :. and the like ., 3ov, ie ali · '., \. Teriage for carpets and multi-part ..! Aterialien, -.vie ceramic or wooden jaoden tiles, used. ~ Jlcrie ..etzstofi'e are also used as packaging materials:. "It- :. u: .a l. ^ ..; ^ .bscnirmmaterial for windows, doors, etc. vsrv.c ;. α oar.

In the French patent specification 1 208 968 an "'eri'a ::! ¹ =:. u: .- ii: .s «orrichxung for the production of textlien nicr.t-gcv.-bte :. ... mesh materials shown, _t ; what one or ler.r ^ rc endless wheels are arranged by two at a distance from each other.

- ^ he xaaeiiochleifen v ^ ground along the rods laterally vorcev.-egt to cut the ends of the thread loops to form a weft thread path with moving n arranged between them. LIit the moving

One or more Kettfäaenbahnen become one or more Kettfäaenbahnen brought into an adjacent coplanar position by suspecting the carried out by two pinch rollers ixina and the combined reminders to be glued together to form a composite to form non-woven mesh. As a result of the changes in the flank surface characteristics of the strands as well as of changes in tension and speed of travel of the threads during the formation of the ochuas thread path It is easy to achieve a uniform lateral movement and a uniform distance with the aforementioned device to ensure the weft thread loops in the weft thread path, so that non-uniformly shaped mesh fabrics are produced »

In the French additional patent specification 79 765 to the above-mentioned French patent specification as well as in the USA patent specification 3,422,511 shows improved devices for the production of non-woven fabrics, at where the weft thread path is formed through the use of a rotating tubular iadenfünrungsarmes, the one endless iaden around two in ".bstanc" from each other The store support parts, which consist of och coil springs, are wound around yours at one end for support Axis is supported. They are generally parallel Position arranged, and when the endless xaden is wrapped around the supported round of the lower, to a teaching figure of xad loops to form between the lower parts, then fall the unrien of the .radensehleifen between the v; indings the B coil springs. when they turn, kick the junctions of the lows with the successive indices the loops in supportive engagement and move the I 'loops at a distance from each other along the lower sides to form the weft thread path.

Although the helical iadenabstützfedern a Inevitable forward movement of the thread loops at a distance from each other allow to the weft thread path

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form, the use of the screws has a certain iiac shares. On arund the great length and the relatively great flexibility of the xeders supported on one end the speakers get slightly out of their correct position during the rotation parallel position moved by pulling them inward against each other which causes undesirable changes in width in the weft thread path. Besides that have the B coil springs at the high .urge speeds, which is desired for an economical production of the network goods are striving to vibrate, which is often disorderly which causes loops between the twists of the leather, resulting in a non-uniform distance the thread loops in the weft thread path results. i) a furthermore the distance between the weft thread loops and thus the resulting density of the mesh is determined by the thickness of the xeders and the distance between adjacent turns of the feathers is determined, it is difficult to produce high density fabrics using the feathers because of the relatively large length and the thin formation of the hips, which are necessary for the production of dense substances such springs are extremely weak and can easily break in use.

^ s is therefore a purpose of the invention, a device for the production of non-woven adhesives, which occur in the devices of known type Overcomes problems.

Another purpose of the invention is to provide a device to create non-woven mesh that can easily be used to create a wide -Range of fabric training at increased working speeds and with a uniform arrangement of the weft threads in the fabric.

Another purpose of the invention is to provide a device of the type mentioned, in which the device forming the weft thread path has high strength

sits, of permanent training is Uj ₁ α to all; equestrian. while working in the correct position, dearer, can produce a uniform chussiäaei.bahri; u.

jie Yorsiehenden as well as other purposes of ^ n'ii.aune-. ' will fulfilled in that a Vorricntung for production is created by non-approved / ebb materials, at Welcner the arehbaren - adenabstützen arranged at a distance from each other ile to form the weft thread path, two elongated ones They are very rigid and are supported at one end to rest around their longitudinal axis are, while their threaded surfaces are the lines of the loops extending between them capture in order to make them evenly spaced from each other . to move forward the formation of the thread path.

In particular, the area support screws according to of the invention has a high cross-sectional modulus, so that it is one Displacement from its longitudinal axis and therefore resisted have exceptional positional stability during rotation. -) The thread surfaces of the screws can also can easily be designed so that they arrange the weft threads in the weft threads closer together to create any desired -tightness of the weft threads in the nexz fabric produced to achieve. In addition, the iradenabstützsciirauben can according to the -rfi-formation at your: rotatably supported x-ends executed with a relatively large cross-section configuration to provide additional strength and torsional stability to create, while they rejuvenate themselves towards the free or: adenabgabeende, "xn die Rader.schieif he. the weft thread path to be brought into an essentially k ^ planar position, before the nut thread path nit cer or de "rlextfädenbahiien comes from. · ird.

- / le -jrfi: -dung will. For example, explained below at :: ^ nd the drawing.

xig. 1 is a Scheniatische öei ~: egg.view of a geinäss Äerfindung trained. Device for manufacturing ^ vo ^ r.icht-t; ewec ~ en net fabrics.

Fig. 2 is a schematic plan view of the device according to FIG. Ί ·, "..in parts of Kettfädenbahnweges are ^ i .'esseren clarity omitted from '-rründen 1,
-tig. 3 is an enlarged sectional view taken along line 3-3 of FIG. 2 and shows in detail one of the rotatable suture support screws of the device according to the invention.

-The device shown in the drawing for continuous Manufacture of non-woven mesh fabrics generally a thread winding section 10, a section 12 for forming an Öcnussfäden web, a section 14 for Combine the weft thread path with one or more warp thread paths and a portion 16 for securing the combined reminders together in an adjacent coplanar position Formation of a non-woven mesh.

As can be seen from Figs. 1 and 2, the shop winding section U includes a thread winding device which has a hollow tubular wheel guide arm 20 which is mounted on a central hollow shaft 22 for jJrenung therewith. i) The shaft 22 is supported in an appropriate manner, for example by a support frame 23, so that it can rotate around its axis and can be driven by an iotor 24, whose OUT (jan _e : shaft 25 via chain cutters 27, 28 and a endless drive chain 29 (indicated in dashed lines) is connected to the hollow shaft 22 for driving purposes. ird one of an r uaen \ vic .-: el 34 peeled endless yards t2 Kontinuierlicn aurcii the lohiwelie 22 efünrt ninuurch ^ by J ;. Γθ the Γ ::; Ό: · ιί :: :: ^ ε />.rm 2L "niriaurci: radial nac :. aujse :. gpfürirt ur: u α ircn e :: .. ei; am -lUaütiren ..i \. \> ± iej .-. r: aes 20 bel'iiia] icnei:« uülass Jd ii.aurc :. neraaj.; Ei'ü: .rt.

The section 12 for the formation of the weft threadsbab ι has two thread support parts 12 and 42 arranged at a distance from one another, which the from the outlet 36 of the guide arm 20 taking up emerging thread between them in a plurality of generally parallel thread loops R (FIG. 2) in a supporting manner. The rotatable tray support members 40, 42 formed by substantially are of identical design are best described with reference to FIG. 3, the one in enlarged scale View of a rotatable thread support part 40, which is kept to a scale, reproduces.

Each of the rotatable Iadeaabstützteile 40, 42 has an elongated spindle or setiraube 44 which has a helically threaded surface which extends over most of its length. The screws 44 can be made of a high-strength rigid material such as steel, aluminum, plastic or the like to rotate with this. The stub shafts 46, 47 are rotatably mounted on the iinden of a worm arm 48 (fig. 2) which is supported by a bearing 49 which surrounds the drive shaft 22. The thread support screws AA are rotated about their longitudinal axis by a chain 50 which drives a chain wheel 51 arranged at the end of the drive shaft 22 with chain wheels 53 and 54 arranged on the stub shafts 46, 47. In order to make it easier to hold the wheel support screws 44 in their position, appropriately supported stop blocks 56 and 57 are arranged under the screws, on which the screws rest and which the worm arm 48 and the wheel support screws 44 mounted on it during their rotation in a notation around the Prevent shaft 22 and thus stabilize it in its position.

never ait: rig. 3 eraichtlicn _s *, the one with the concerned agree! shaft connected beef part of each wheel support

screw 44 has a relatively large cross-section around the screw to impart maximum strength and rigidity while being rotated by the stub shaft. Preferably taper the length of the screws in the direction of the forward movement of the loops arranged on them the upper and lower strands of the loops during their advancement along the screws gradually approach each other so that the weft loops in a coplanar Alignment come when they in ö.en the weft thread path with the or aen warp thread paths combining section 14 of the device, see in Pig. 3 the position of the loop ends of the endless weft thread 32 in the respective grooves of screw 44- The taper of the xade support screws also serves to relieve any tension that may be felt by the i'aden while wrapping around the spaced apart lying screws can be granted and which could endeavor to create an arrangement of the loops in the weft thread path when the wheels soak leave the free ends of the support screws.

The ends of the Screws 44 can be fitted with conical guide pieces 58 or which marked the introduction of the Jraäenschleifen in the (each groove of the screws make it easier if the räaen from the guide arm 20 wrapped in loops around the screws will.

• Vie aus ig. 1 and 3 visible. is, aer the weft and warp thread spans combining section 14 has two pinch rollers 84 and 86, which bycr. Appropriate means (not shown) between the free items. land the i'adenabstützschrauben Ή are rotatably supported, the nominal screw 44 drenen to aie .eadenschieiien in übstand apart along aer öcnrauben to uilaung the ScLussfädenbahn vorzubewe _f he iau:. 'en aie radenscnleifen between them ert'assenae :, A'alzen 84, he, üinauren. ^ he terminal point aer salzen 84, ^U 6 are in front of ^ an appropriate source of supply

(not shown) one or more, for example two warp thread webs 90, 92 are supplied, which are brought into adjacent copianar position during their movement between the pinch rollers 84, 66 and are combined with the ochus thread web. When the ionized weft and warp thread webs leave the support screws 44, they run over a guide roller 98 into section 16, in which they are fastened to one another.

The .abschnitt 16 for attaching the combined Weft and warp threads have a glue bath 100, through which the comfort and warp thread webs of rotatable nip rollers 102, 103 are carried out to To apply an appropriate adhesive to them, -then the warnings run around the surface of heated ones Drying rollers 104, 105 »where they are attached to one another, to get a non-woven nets ^ coff too. form that then is wound up on a roller, one or more the waltz, in section 16, although not shown, be driven in appropriate »Veise, on the weft uriu warp threads through the Vorrintung just to move.

vie ütucmeiwelj-efi 46, 47 on- the iradenabstützsenraucen 44 connected to them are rit with aligned central passages Iwb versenen, in -rig. 3 indicated by dashed lines), which are continuously passed through during the formation of the uchussfädeni-ani: r-and-äae :, 110 or Ill (rig. 2) , and arranged in the x ^ ends of the weft thread loops. if these the ireien - ^. nd the bchrauce ;. 44 leave. x »he r.an-fääen not only reinforce the composite, non-woven fabric product, but also create additional support for the ochuas thread web during its passage through the aneirianaer section 16 of the device.

^ ie to -ilauru: the nicr-t- ^ ev.ebter. l. mesh fabrics used rough ability of any. made of endless single threads

or woven textile threads existing jar new of art or ! »Natural fiber composition should be formed, .balls that ü'etzstoffproduKt should have a high residual content, for example if the nichx-woven otoffe as reinforcement in one composite tools are to be used the use of threads made of mineral x fibers, such as glass fiber threads, particularly desirable.

from the above description it can be seen that When setting up, you can find the screws The supporting rope has an exceptional airiness and stubbornness bt-sit so you ate aie screw during your Inevitably hold the rotation in its position and thereby a Uniform / normalization of the rough loops in the ochus thread path and a uniform riding control of the track greater working speed: ensure the device jvusberdesi Can the threading surfaces of the load support wrenches. can easily be formed in such a way that the ochus thread loops in dense ^ bstana from each other and arrange evenly in adjoining position for the production of still tight otoii'en without doing this at the expense of the structural strength of the supporting parts, how ciiea cisner the -all gev / esen is when ochraubfedern uses .verden. Depending on the desired btofi'ausfür.rung Can be easily interchangeable in the device oC: .i aiben with different surface configurations Can be used to make non-woven fabrics of exceptional quality Quality unjleichförcig.ieit to produce.

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Claims (7)

Protection claims 1, device for making nicnt-woven abrasives, with a device for winding an endless one xadens by two spaced apart elongated rotatable thread support parts to form a A plurality of loops between the support parts, the x-aden loops along the support parts when they are rotated advance at a distance from one another to form a weft thread path, a device for combining the weft thread path with one or more warp thread tracks in an adjacent coplanar position and a device for fastening one another the combined creams to form a non-woven fabric, characterized in that the two load support parts (4ü, 42) each have a screw (44) have a thread surface with aer aie xadenschleifen (R) step into a ^ ri ^ f, have and their long axis generally parallel to the direction of advance of the loops (R) extends. 2. Device according to claim 1, characterized in that that the load support screws (44) to the strands of the wheel loops during their movement along the screws against each other and to move them into coplanar alignment with one another, each over at least a portion of their xadenabstützlänge tapering in the direction of the forward movement of the χ vein loops Have shape. 3 · Provision according to. Claim 2, characterized in that that each axle support screw (44) ends at its strongest point is rotatably supported. 4. Device according to claim 2 or 3 »characterized in that that the device for combining the nut threads with one or more warp threads; two tracks between each other has the roller support screws (44) extending pinch rollers (84, 86) and that the thin j - :. those of the o 70 ', in ben (44) in the direction of travel of the thread path extend beyond the nip of the rollers (84 »86). 5 = device according to one of claims 1 to 4 »characterized in that for inevitable stabilization of the Load support screws (44) during their rotation with the circumferential surface of the -cadenabstiitzscrews (44) close to their i'adenaufaufenden end Parts (56, 57) are in engagement. 6. Device according to one of claims 1 to 5t, characterized in that each xadenabstütz screw (44) has a longitudinal passage (Ub) for the passage of a nandfadens (110 or 111) to be inserted into the weft thread path. 7 Λ