DE8109060U1 - MACHINE FOR APPLYING CHEMICALS TO FIBROUS SURFACES, IN PARTICULAR TEXTILE TRACKS - Google Patents

Description

* -t. O

9/5

Mathias Mitter, Falkeristr * 57, 48l5 Schloß Holte

Machine for applying chemicals to fibrous Flat structures * in particular textile goods webs

The invention relates to a machine for applying chemicals to fibrous surface structures, in particular textile webs with at least one application station through which a sieve belt is guided, an application device such as a doctor blade or the like on the inner surface of the sieve belt in the application plane. is arranged, which is above an abutment _i over which the web is guided directly or resting on a printing blanket. Screen printing machines of this type are already known. These screen printing machines have a printing unit construction with a circumferential screen printing stencil tape and are described in more detail in DE-PS 22 28 892, for example. Such a screen printing machine should only be mentioned in the present context as a possible embodiment example.

When printing $ ■ dyeing or finishing fibrous fabrics, especially when using a RaVeirolle an intimate conclusion of a compromise between Siebband or Siebschablönenbähd and the web. Included 2ö it happens that hairs of the fibrous flat structure,

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in particular, the "text lien Wärenbähn'en ¹ _t it weftn night.

) very smoothly woven or cjeWififfe are, iftisieb baw *

verfäfifefi in the screen mask * ■ If the web with the Siebbänd barren of "Siebschäblöne after the contract area = yet Weitäirgef ühirt _f until both connected ifinig

If you have a Umlenic roller, Ufid is only available at this point '' Sfeeile 'abruptly from each other in a relatively short distance'

g'etf entity so Vönfien two phenomena occur ί

i. The small fibers entangled with the mesh belt r _(iO Aeus dex web heraUsgezoden and remain in the

Sieve belt or in d £ r. Siebschäbiöne And put this gradually to.

2i In the event of an abrupt separation between the main web or; Sieve^-

Schäblone '■ id Warenbahn Vanh a spray of the Fafbej US, namely a back sprit ζ err of the dye vöti Siebbaho

take place on the web or ei result in so-called Fafbspitzenj the sieve belt itself from dirty outside *

These phenomena occur when Auftnag of the most diverse fleets, such as a dye liquor, a training _f ■ armor fleet it was, verschäümt or not, but also

for printing pastes that are relatively viscous. As foamed A wide variety of chemicals can be used for application media. First, though, is the job .25 Thought of color or a dye liquor or dyes for pressing or dying but also for the application of highly viscous ones Color pastes.

However, it can also be applied, for example, with a lace, also through a sieve belt, for example as a layer. The Viarenbahn Vafin can also be treated by the foam, for example by foamed finishing chemicals · iTiTier, this phenomenon can occur in the event of an abrupt separation of the screen belt or the screen template from the goods bar.

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EXCEPT there is an Öefähif feeiffi AUftifäfen von Fär = öder D £ 'U <§1cflotten or * from AUsirüstUfigsfiötteri in VeröhäUmtelf Förifi in the fact that at ÄfefÜßtei? Zuffl again bring separation in ÜmienVbefeich deri SähaUni stabilizing Tenäide the fleet foaming æŒ that the screening area the relying party web SchaUmflöcV-en on its surface or ^one having a Schäumfilm *

In addition, it icariri happen - that after the intimate Köntäfctschlüß between Siebbänd And _web} of a cooperation

iÖ Icleben is the same as the dye or the one to be applied Chemical is withdrawn from the goods at the moment j when the sieve barid or the sieve template is from that would be lost abruptly. There is then a lack of dye when printing or dyeing, especially in the case of flörwäre or a lack of finishing chemicals E.g. * a so-called gray haze when applying paint produce Vann on the goods, namely on the tips of the pile.

But also on the inlet side there are problems between 20 and the sieve belt, which is generally a Siebdrucvschäblohen belt is and the web. On the inlet side, if the material web and the screen printing stencil belt are at known machines come into contact, the web of material suddenly grabbed, pressed, squeezed and fed under pressure to the application device. This can result in displacements in the tissue and in particular with pile ware or with sensitive goods, such as Non-wowens, fleeces * felts and the like can affect the surface structure be crushed.

The object of the invention is thus to carefully bring together the sieve template belt or the sieve belt and the web of material in order to achieve a gradual placement of the web and template "xu. - around the web

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smooth And Una.effg-feöift :, URVeifdffilcälcfe And in ihifei? ÖbeifflMähti ibeiässeniUnfeöf the ÄUf £ fäg "sVöri? ieh £ Ui3g '; leave SU And / or the Siebschäblönenband And the fabric line Immediately ^ bar hääh derri könntä ^ tschluss, during the order Is present, Vorieihahder -i'U separate j so that each one Weitcjezögenerj sdhWalgehälfeener, i.e. an acute angle is formed j To carefully feed the web Uriä to separate again carefully *

The erfindüngsgemäße object is solved in that the IS web of the screen belt or at an acute SiebsChäblönenbänd elongate angle fed and / or int _i acute angle from the elongate wire belt barren sieve Echablonenbt? .ND is separable. This ensures that the material web is carefully fed to the sieve belt or sieve template belt and gradually merges with it, is carried along by contact closure, passes through the application station and / or after leaving the application station, preferably under the roller squeegee through the material web and sieve belt or sieve template belt v to be separated from each other.

This prevents e.g. when printing or dyeing of pile ware that there? Siebbarid or screen printing stencil tape Further roller pile, fibers or the like. pulls out of the goods, which could clog the stencil and on the other hand is prevented by slowly lifting the screen belt or screen template belt from the goods, that splashes of paint contaminate the stencil from the outside or fall back and color stains appear on the goods just as a gray veil should be prevented.

Another idea of the invention is that a deflection device or roller of the screen belt or screen stencil belt upstream or downstream of the application area above and / or a leaning device or roller

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the device for the transport of goods is below the order level, so that a far drawn pointed WinVeloCoC'between the goods transport, the main conveyor or screen stencil band is created, the apex of which is in the application area or approximately in the application area Lies.

This ensures that the order area is assigned directly, either on the inlet side or on the outlet side lying or on both sides, sieve belt or sieve template belt and web in a pointed WinVel The order level or the order area lies in the vertex of this WinVel. The careful bringing together of the tapering ligaments and the careful pulling apart of the after intimate Conclusion of the order, removed tapes are essential and Vann can be used as an alternative. with both factors each or together being the equal Grant order.

When applying dye liquor, printing liquor and the like, if the distance is after the application area, dye particles no longer deducted from the goods, which is also equivalent when ordering refinement flobs applies and also v-ann when applying foamed fleet Velne further foaming after leaving the order area or pressure range.

It is also achieved that when the screen belt overflows or screen stencil tape over a guide roller or roller that is directly attached to the ÖrueV area, holding on to fibers, the material or clamping the same on the surface of the scale and template or Sieve belt flees flour? be evoked tiänn «This is true even if the angle is in the true range «

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Furthermore, one idea of the invention is that a deflection area of the screen belt or screen stencil belt upstream and / or downstream deflection device for the material web is arranged, so that a far-drawn acute angle between the transport of goods and the sieve belt or sieve stencil belt is created, the apex of which is in or on the UmlenVbereich of the sieve belt or screen stencil tape.

This ensures that the first deflection area of the screen belt or the screen stencil belt is guided in a rotating manner is, the web is already fed very carefully so that it is not suddenly pressurized but has time to gradually sit down and / or a deflection area downstream of the application area for the sieve belt or sieve stencil belt, the careful detachment of the material web from the stencil belt or is assigned by the main belt.

Exemplary embodiments of the invention are shown in the drawings. Show it:

Fig. 1 is a schematic side view of an embodiment with a screen template,

2 shows a further exemplary embodiment with a screen template,

3 shows an exemplary embodiment in a schematic side view with a sieve belt,

Fig. 4 + 5 schematic sketches of different exemplary embodiments,

6, 7, 0 exemplary embodiments with a first sieve belt or f - ■ . . '■■ :,'! a screen template that is guided over rollers 3.Ö is available for different goods infeed,

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In the exemplary embodiments shown, the machine frame is denoted by 1, on which an application station 2 is arranged. In this application station, a sieve belt or sieve stencil belt 20 is arranged, which can also be designed as a sieve printing stencil belt. In the embodiment of FIGS. 1 and 2, a screen stencil belt is shown as a screen belt 20 which, in these illustrated embodiments, is guided over three deflection devices, such as rollers 21, 22 and 23. Any number of rollers can be provided in order to guide the screen stencil belt or screen belt 20. There will generally be at least two rollers.

In FIGS. 1 and 2, 6 to 8 and 4, the sieve belt 20 revolves continuously in the exemplary embodiments 3 and 5, two deflection devices are provided as rollers 21 ', 22', the sieve belt runs from roller to roller.

On the screen belt 20 or inside the screen stencil belt an application device 3 is provided with a doctor blade 30, preferably a doctor roller. Further a liquor supply pipe 31 is provided, wherein any chemicals can be supplied, in particular also foamed liquor. This feed can also be formed by pipes running back and forth, to distribute the liquor or the foamed liquor evenly over the total working width. The working width is arbitrary and can also be a few meters.

Furthermore, in front of the doctor blade 30, a filler feed 32 is carried out 'a wall 33 is formed. This Einiüllrauffl can be used as a room or serve as a security room. The one on the side Completion of the Binfüilrauffles 32 between wall 33 and one

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upper sealing 34 of the doctor blade 30 is possible, but is can only be seen in FIG. 3. Side limiters for squeegee rollers to close off the color space on the side are

printing machines known.

5 Below the filling space 32, through which a color wedge

yyyy can be formed in front of the squeegee 30, the dar <each-

presented exemplary embodiment a suction box that is known per se 4 provided with suction slot 40. The suction box

\ is generally below a possibly endless

guided blanket 5, which in turn over any

ρ number of deflectors, such as rollers 51, 52, 53

P (Fig. 1 and 2) or 51 ·, 52 · (Fig. 3) is performed.

A textile web 6 rests on the endlessly rotating printing blanket 5. The web 6 can also be stretched freely be between rollers 51 and 52 (Figs. 1 and 2) or 51 ', 52' (Fig. 3). These deflectors like Rollers or the like. otherwise transport the printing blanket 5 or application blanket 5, a tension roller 53 be arranged.

When it comes to fibrous sheet-like structures that are not fabric-like, for example for piece goods, it is possible to place them close together and to transport them on the printing blanket 5.

The main thing is the uniform through-dyeing, Printing or finishing of textiles, for example carpets. But there is also the possibility Fiber fleeces, mon-wovens, felts and the like or else To dye, print or refine smooth goods such as woven goods or paper. The equipment

Ii - -.30 ■ / flotte "consists of * well-known chemicals for * them Purposes, for example starch, a shimmer and the like, but there is also the possibility of an adhesive, an etching «

β liquid or the like. to apply «

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In addition, the chemical VeirsöhäUm · be *

^: . And äWär "Preferably a flo-fete provided with dyestuff ödefr äUdh without dyestuff, - As shown and described in the" DE ^ OS 25 23 062 »

In the execution example of FIG. 1, the AbienkvörrichtUncJ 52, which is directly attached to the printing area, is lowered and thus lies below the order level Ä _s, whereby a space is created between the lower strand 12Ö of the screen printing stencil belt 20 and the web of goods running from the wheel web 30g which in the present case is supported by DfUcVtUch 5 * The product line Vartn but also _h as already mentioned, can be guided up to AblenicvörriGhtung 52 *

This WinVel is marked with oC in the drawing * The Vertex of the Winicels Üegt in Figs. 1 to 3 below the doctor blade 30 or * in the vicinity of this area. A Schen-VeI this angle thus runs as a tangent over the deflection device 52 for the goods or web 6, while the other leg of the angle through the lower strand 120 of the sieve belt 20 is formed and also tangentially touches the deflection device 22, which acts as a roller or roller be trained> ann.

In Fig. 2 the situation is similar. The angle cO but is formed here in that the Ablenvvorrichtung downstream of the doctor blade 30, a roller or roller 22, which lifts the sieve belt 20 above the application level A is so that the sieve belt 20 with its lower run is raised, directly from the lower vertex the RaVel 30 starting at a long acute angle / *

In Fig. 3 an embodiment is shown in which a printing blanket 5 is also provided on which the web 6 lies. This printing blanket is endlessly revolving and driven. On the war 6 is ^; a sieve belt 20

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laid, the von eifiöif AblefikVÖrrlähtUIng 21 '2Ui? other AblehkvörfichtUfici 2 "2 ⁽ guided-, Vör'z-Ug-s way from roll to roll. The rolls lie in guides 10, in Schiitzfühirungen with their axes 121 or * 122 * The role, which acts as a deflection device 21 'works, lies with its own weight on the goods 6. The Äblenic device located behind the application device 3, such as roller 22', supports it in the lower end of the slot 110. The part of the sieve belt 20 located after the application device thus rises out the order level on and the web 6 is simultaneously in this area, so that the sharp WinVeloG is again created by the separation between the main web and web 6. Thus, it is shown that the long, pointed Win ^ eloO or the separation between web 20 and web 6 at an angle can be achieved by changing the deflection device 22 or 22 'of the screen belt 20 and also the deflection device 52 of the web guide or the printing blanket from their normal lengths, that is, in relation to the application plane, one deflecting device can be moved upwards and the other deflecting device can be moved downwards.

It is also possible to change the acute angle in that the deflection devices are in their position in the The ratio to each other can be set »The size of the angle can thus be changed.

The terms "above""" and "below" are not ^{to be understood as restrictive 1.} If, for example, the web 6 or another flat structure is guided vertically, the application of chemicals or foamed chemicals can be carried out from the side, so that the respective Ablenkvörrichtüngen, for example rollers 22, 22 'or 52, 52' or also rollers lying in front are in front of or behind the pressing plane.

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Wiifd ¹ but * the Wäirenökeff laöhe as an exit area so -kfeffgn Again did Be <piffe Naben »and ^{i (} Ufit- <sn ^tf

The term "Auft fag's level" isfe to understand level 2U, in which the web in the area of the AufferäcjsVörrichtung 3 is led * With the Einfadhen därgesteüten Embodiments of FIGS. 1 to 3 is a length and relatively wide supply of the web 6 in one plane However, there is also the option »both the sieve belt 20 as also the pressure 5 or the goods ^

1Ö to lay the path guidance level in such a way that the order level is only reached in the area of the FarbaUftragsvörrichtüng. An exemplary embodiment in which the WinVel Üegtj is designated as ctC 'in the drawing in the inlet area is shown schematically in FIG Chip roller 23 can be formed. Further guide rollers 24 and 25 can also be provided. On the whole, however, this structure can correspond to the structure of a pressure construction similar to DE-PS 22 58 892.

The squeegee 30 is provided here as an application device, it may or may not be driven, and the pool of paint or a space for receiving an application chemical is located in front of the squeegee, possibly again delimited by a wall. It is essential that the web of material 6 either "rests on a print-itich or ■ '■" As * shown, freely stretched between the rollers 51 ", 52" is passed under the application station 2 and the sieve belt or sieve stencil belt in a pointed, elongated angle can be fed and, as also shown in FIG. 4, can be separated from the screen belt or screen stencil belt at an acute, elongated angle oCs. Here, too, the doubling tJädürch can be achieved that the deflection devices 51 "and 52 *"

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füif Weirden lowered the DfUätetUäh the Were barren "* The AUsfühirUnäen tO Figures * 1 * 2 And 3 Are efit-spiireähend änWendbäif in Eirtgängswihkel cC 'ürti a Vörsiähfeiges placing the screen belt barren Siebsöhäbiönenbandes 20 to Had to guarantee and / ödei? to allow a careful separation of the running parts *

FIG. 5 shows another schematic sketch corresponding to the embodiment of FIG. 3 _; however, without showing the machine frame, merely as a possibility of using the acute angle 0 ° both in the running area and in the run-out area after the application device 3.

In FIGS. 6, 7 and 8 there are again job stations shown how their construction is about def DE-PS 22 58 892 * Here it is shown in Fig. 6 that the flow winVeloC "also with its apex in a Umlenvbereich of the sieve belt 20 or the Siebschablonenbandes lie v-ann, namely in the area of the tangent, which results from the guidance of the siet / tape or Siebschablonenbandes and the deflection device 22, at the illustrated embodiment of a roller or roller results. To guide the web in this way, the deflection device for the web 52a is raised above the application level.

7 shows the angle ^{at the} inlet area. Here it is clearly visible that the material web is carefully guided onto the plane of the course of the Siebbärides or screen stencil band, so that an elongated, pointed angle is created which can be in small areas from Oji to, for example, 5 desolate 10.

Fig. 8 shows an exemplary embodiment in which the acute angle oC ' ¹ lies both in the inlet area and in the outlet area. Thus, the deflection devices 51a and 52a are both raised and are adjustably supported.

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Around the web not at an acute angle again §

to be traced back to the working level or around it, for example f

to be fed horizontally to the deflection device 51a, |

further guide rollers 54 and 55 are provided, which are mounted in any way attached to the machine frame are and can also be adjustable.

Fig. 9 shows an embodiment of a device for adjusting a deflection device 51a, which is on a Axis 151 is mounted, the bearing block 251 of which is adjustable by means of a screw spindle 351. Such storage can be bilateral. This is only valid as a possible embodiment.

Thus, it is shown overall that the web of material corresponds to the sieve belt or the sieve template belt 20 in the pointed, Elongated angle can be fed in and / or at an acute, elongated angle from the screen belt or screen stencil belt is separable. Both options ensure the correct application of a chemical because it is shawl or not foamed

The term “sieve belt” is not to be understood as limiting. This sieve belt can be a SiebärTIükschablonenband, be an unpatterned stencil. This can be used evenly for a simple application or for dyeing, for example be permeable. The sieve belt can be a simple sieve that is woven, perforated, or otherwise and made permeable to chemicals, for example liquors, which may also be foamed, to let through. The openings in this sieve belt, the one from deflection device 21 'to deflection device 22 'is guided and rolled up on this, kept larger or smaller, tiewnaehdeni which' '*'; Effects ttiäfi wants to achieve * Be in the circulating main web a print * - dull color confirmation plays the

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The risk of fiber residues naturally plays a greater role than if a screen belt running from roll to roll, as in Fig. 3, drawn over the order level A v / ird.

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Claims (6)

Patent Attorneys- \ y \:. Loesenbeck (19 & 0): ':,.: Dipl.-ing. Stracke Dipl .-! Ng. Loesenbeck Jöllenbecker Str. 164, 4800 Bielefeld 1 9/5 claims for protection 1. Machine for applying chemicals to fibrous sheet-like structures, in particular with textile webs at least one application station through which a sieve belt is guided, with the inner surface of the Sieve belt in the application level an application device, such as a doctor blade or the like. is arranged, the above an abutment over which the web is guided directly or resting on a printing blanket, characterized in that the web {6) or the like. the screen belt or screen stencil belt (20) can be fed in at an acute, elongated angle and / or at an acute, elongated angle is separable from the sieve belt or sieve template belt. 2. Machine according to claim 1, characterized in that a deflection device downstream of the application area or roller (22) of the screen belt or screen template belt (20) above u.id/or a deflection device or roller (52.52) of the device for transporting goods is below the order level (A), so that a wide, acute angle, 'between the goods transport and the sieve belt or stencil belt (20), whose Vertex in the application area or approximately in the application area lies. ;,.,. ., I I * I f * I # fill I i I * * i II * ta ti I ft ti I * * 4 tt ι ti * n ti * f ti * t Middle - 2 r- 3. Machine according to claim i and 2, characterized in that a doctor roller is provided as the application device is. 4. Machine according to claim 1, characterized in that a Uralenkbereich of the screen belt or screen stencil belt (20) upstream and / or downstream deflection device (51a, 52a) for the material web (6) or the like. is arranged so that a wide, acute angle between the goods transport and the sieve belt or LJiebschablonenband (20) arises whose apex is in or on the deflection area of the screen end or screen stencil belt lies. 5. Machine according to claim 1 and one of the following claims, characterized in that the Uailenkvorrichtungen for the web (6) or the like. adjustable in proportion to the sieve belt or sieve template belt (20) are arranged. 6. Machine, characterized in that the Umlenkvorrich-J-ungen for the sieve belt or Siebschablonenband (20) are adjustable to change the Winkeloo, cÜ or cC ". ft * l t Il It tt, t I, Γ · ''<' 4 IIII I. ί ί 1, ■ <ΊΙ · ι 11 H U Il