DE2116718A1 - Method and device for treating a multifilament thread - Google Patents

Description

VEB ChemiefaaerKombinat d, 23.06.1S70 Schwarza "Wilhelm Pieck ^M

Method and device for treating a multifilament thread

The invention relates to a method and an apparatus for the treatment of a raultifilen thread with improved Thread closure,

"For the further processing einee multifilament" thread, it is necessary feäeoverband the individual threads in to give a cohesion This is done according to known encryption like driving through the direct action of a flowing medium to the multifilament yarn in appropriate blowing devices. The so-called · fade »receives knot parts at more or less irregular intervals, which cause the individual threads to stick together ·

109884/1618

So it was already proposed that the upper part of a multi-part Jet through a prairie & tröinur ^ das! Ünsau ^ en to effect the multifilament thread and in the lower part of the Device through el & € second direct blowing (secondary pink) To swirl the thread around «To achieve one good interweaving of the individual threads iot according to the above Process a high air consumption is necessary and it continues to have high flow velocities dee media ahead «

Eis VaQ for the interweaving is the opening length. she indicates the route around which one is perpendicular to the thread axis Hade stuck in the multifunctional thread "" in thread " Axis direction can be shifted up to a noticeable resistance lot «The distance covered by the handle results in the Opening length.

The above-mentioned method has the decisive disadvantage that the price of the secondary flow, which is actually more important for the turbulence, sti> rt ~ From this it follows that very high speeds for the secondary flow and high air consumption for the whole are necessary to achieve small excessively long distances Process erfotoeillch sinci and furthermore the aäniaai verveichhute opening length is relatively large. Due to the generally applicable high secondary flow velocities, there is a risk that the thread material is very heavily stressed by direct blowing, ie. h «, individual capillaries of the thread assembly can be damaged in such a way that the thread material is reduced in quality in further branching processes. The textile-physical properties such as strength, elongation and colorability are reduced.

BAD OFUGlNAL 109884/1618

The invention is based on the object of a process and an apparatus for treating an imiltifilen To create a thread with an improved thread tie with little air consumption without the multifilament thread is subjected to heavy loads.

According to the invention, this object is achieved by a method solved, which is characterized by sucking, spreading and swirling the multifilament »thread means a turbulent flow generated by a gas flow, without the sharply bundled gas stream emerging from the pale canals resting on the multi-filament thread.

The Vorriefet ar?, 2 according to the invention is characterized by the coaxial sheathing of the thread guide channel with am Thread inlet end closed ring chamber with confluent Blaskana'len and in the thread running direction elongated, coaxial vortex chamber and see widening Material treatment chamber

The erfindungSgemäSe method of treating the multifilament yarn is dag a highly strained medium, 'preferably air, is caused by means of radially or tangentially opens into an annular chamber blowing channels to intensive turbulence and the vortices as a result of the action of centrifugal force en the wall of the cylindrical ring - and swirl chamber and the steadily or unsteadily expanding material handling chamber move with decreasing intensity in the direction of the thread running, the multifilament thread being sucked through the thread guide channel into the swirl chamber and thus spread by the negative pressure that arises in the middle of the vortex

. 4 -109 8 84/1618 ■ _BAD0RIG1NAL

becomes that the filaments old in contact with the vertebrae arrive and ultimately through this entanglement the soaping »takes place *

Carrying out the method according to the invention, an operation is used which is characterized by the coaxial covering of the thread guide channel with the annular chamber closed at the thread entry end and bleekan and le and lh the thread running direction of the elongated, axially identical vortex chamber, steadily widening or steadily widening or continuously or uncontrolled , with the dimensions of the FadezifUhrungskanals, the annular chamber, the. Vortex chamber and the itaehhandlungskammer based on the FadeiifühnsngekeaalduFchiBeseer are chosen so that the surface area of the hanging and vortex chamber is equal to 1.3 to 0-ffifelsen, the diameter at the thread exit end of the Saehbehsßluagekarasner equal to 2 to 12 times the length the 1.7 to 2Q times, the same fold 30, the length of the swirl chamber to the 3.5 to the Läng "of Haehbehandlungetarnme t equal to 6 to 30 times the dee diameter of FadenfUhrungskanala and the Fadeaführuagskaaeldurchmesser values between 0 _e 4 and 2, 2 as sn & iamt "

It is advantageous to provide 2 to 6 BXaskar.

BAD GRiaiNAL 8 4/1618

It is also useful for carrying out the invention Procedure advantageous, the WinkeloC · the between the FadenfUhrungskanal and the blow channels is smaller than 90 °, preferably 10 to 80 °, keep xu,

The invention is explained on the basis of exemplary embodiments. Show in the accompanying drawings

Fig.1 - a longitudinal section of the invention

contraption Fig. 2 and 3 - section at A-A of Fig. 1

The multifilament thread to be treated 1 is through the forming air suction into the king chamber 4 or vortex chamber 6 drawn in through the thread guide channel 3, spread open ucd swirled when grasping the vortex chamber 6. Bine The intermingling of the multifilament thread is made uniform in the caching treatment chamber 7. The treated thread arrives at the winding device via thread guide elements direction (not shown in the drawing) and can to any packaging units can be further processed.

In Fig. 1 is the same as that of the inventive concepts Direction containing insert body 2 shown «This consists of the conically widening towards the thread inlet · the thread guide channel 3 «that of the RintJa-men 4 and in

.6-

109884/1618 badorjginal

opening blow channels 5 is surrounded by moiae triach “In the direction of the thread, the annular chamber 4 adjoins the circularly designed vortex chamber 6. consists of sylind "smell portions" which look sections enlarging Durehmeeeerbereidae have, with the largest diameter located at the Faäenaustrittsende is "Advantageously, smooth atm Öbargäage of the individual sections in the au Hachbehandlungskassmer 7, su a proper yarn path plan. It is expedient to manufacture the inventive device forriehtuiigselemente from high wear-resistant materials, such as sintered ceramics, hard metals and especially after-Beiiaisdeltea steels. An advantageous arrangement of the BXas channels irr. Insert is shown in FIG. 2. To generate intense eddies in the annular chamber 4 and preferably to form evenly distributed nodes on the thread structure, the tangential confluence of the bias channels 5 into the circumference of the annular chamber 4 is to be provided. A characteristic of this embodiment is that the confluences the blow channels b are arranged opposite one another on the circumference of the annular channel 4 in a plane which is perpendicular to the direction of the thread running "

Are other designs of the device for a » The flow of the gaseous medium is shown in Fig. 3. The filas channels 5 open radially into the annular chamber 4 « In this embodiment, too, the blow ducts are "■ * »! Indings opposite on the circumference of the ring diamond arranged

1 0 9 8 8 4 / 1.61 8 ^baths original

Claims (1)

Patent claims » Method of treatment «Ines multifilament with thread improved thread cohesion, characterized by the opening, spreading and swirling of the multifiltn Thread by means of a turbulent flow generated by a gas flow, without the sharply bundled gas flow touching the multifilament thread, 2, apparatus for carrying out the method according to claim 1, characterized by the coaxial sheath of the thread guide duct (3) with λ at the yarn entry end verschloasener Kingkarcnier (4} cifc einmündenaenBlaskanälen (i>) and in the thread running direction extended axis of the same vortex chamber (6) and extending continuously or discontinuously expanding Aftercare Akatrmer (7) 3. Device according to claim 2, characterized in that the cross-sectional dimensions of the thread guide channel (3) are smaller than the corresponding dimensions of the circular ring chamber (4), vortex chamber (fc) and the continuously or discontinuously expanding tile treatment chamber (7) 4 «Device according to claim 2 and 3, characterized by core | draws that annular chamber (4>, vortex chamber (6) and Post-treatment cautery (7) with no space between them limits 5 · Device according to claim 2, 3 and 4 »characterized in that the tile treatment chamber (7) has several cylindrical sections, preferably 2 to 3, the cross-sectional area of the larger am The exit end of the pae ^ n is located 1st and the transitions are smoothed between the diameter ranges " 109884/1618 bador.ginal 6, device according to claim 2 to 5, characterized in that that the blow channels (t>), preferably 2 to 6, Open out radially or tangentially opposite on the circumference of the annular chamber (4). 7. Apparatus according to claim t to 6, characterized in that the center lines of the blow channels (5) and the thread guide channel (3) between them enclose an angle smaller than 90 °, preferably 10-80 °, a ₀ Device according to claim 2 to 7, characterized in that the diameter of the annular chamber (4) and the swirl chamber (6) is equal to 1.3 to 10 times, the diameter at the end of the aftertreatment chamber (?) on the thread exit side is equal to 2 to 12 times, the distance between the blow channel opening and the end of the hanging chamber on the yarn exit side is 1.0 to 50 times, the length of the annular chamber (4) is 1.7 to 20 times, the length of the swirl chamber (6) is 3, 5 to 50 times, the length of the Hachbehandlungskammer equal to your 6 to 50 times the diameter of the FadenfUhrungekanals m (3) and the thread guide "channel diameter 0.4 to 2.2 mm in size is · - For this 1 sheet of drawing - 109684/1618