DE1652402A1 - Method and device for coating strips - Google Patents

Description

HELMUT GÖRTZ

6 Frankfurt am Main 70 'i £ e <WA <»29. * ΟΥ« * · Τ % 967

"'' tr. 27-TW. 617D 79

The Head Corporation, Chillicothe, Ohio (USA)

■ ■ * ! Experience and device for loading belts

This invention relates to a method and a propulsion * device for coating moving belts, where ·! the coating fluid material is used in excess; da · λ über3cMsaige material is distributed over dae belt and then removed from the precoat th surface, "The invention further relates to a device ZUW coating, wherein the coating.» - * material Währe id of BeaehieMungsprosesseiä In a abgeaohloesenen TJsigebung is maintained.

Sine Beaehicht-JingGvorriehtung muse the punctures of the application "Distribution and the measuring effect" Each of these punctures let a with opecielle problems connected "The inventors in this field in general turned their attention to the individual solution of these problems * The result shows the state of the art Knives up, air knives, leaves, bulwarks and brackets, over the surface of the villainous threat, since "before * (we had distributed usd, exactly to whom.

Orphans,
Devices have shells, atomizers, and extruders. Distribution is carried out in many ways, often in combination with the steps of the loader or Meoueas. In general machines that perform all three functions well, large, ir # 3P- »^ wound and tsure combinations of the known co-components β *; In practical use, these machines are homely limited to a narrow range of coating materials. >'".%

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In addition to the above-mentioned coatings, the existing devices are generally inadequate for the handling of hot melts or other rapidly degrading linings medium tone the lay-up and measurement range is "evaporation ι flocculation and thickening are results of typical" working away. Nor is it Homebody for ample ventilation, drove sum foaming of the aqueous coating compositions shown below. B _e i the treatment of hot melt it is usually necessary , numerous skins of the direction of attention as well as the coating flow itself old Ritse su apply «

The invention consists in a method for coating and a compact, mechanically simple and inexpensive coating device which is suitable for applying, distributing and measuring the coating fluid in a single combined operation without exposing the fluid to the air, with the removal of excess coating material from the Seschiohtungsberelch provided let. You weiet device - as you Bauptbauteil -a large cylinder-shaped member on, -about which is sucked the "MBE coated web. This cylinder-shaped Olled remains stationary during the coating process. The direction of the gate also has an elongated plusameas means, which: is arranged adjacent and parallel to the cylindrical-shaped Bsnptglled; the section of the parallel links forms an elongated cavity for holding the flow medium. The cylindrical main link is provided with one or more flow medium inlet openings and one or more flow medium outlet openings. The feed openings

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SAD ORIGINAL

Bind bo arranged "that" a permanent demand of the coating material to the cavity receiving the fluid is provided. They drain openings are eo arranged to be enclosed by the web at their entrance to the fluid receiving cavity will. When the web is sucked over the cylinder-shaped member, it completely includes a supply of the viewing fluid which is passed through the inlet openings driven into the cavity receiving the flow means has been. Hydrostatic pressure drives the excess coating fluid out through the drainage openings. This arrangement of the web and the coating component ensures the separation of the coating fluid from the atmosphere. If the train continues quickly over the relatively small attention is drawn to the Sauer of the actual certification process or the Beschiontungsverwellzeit reduced far more than it is with the conventional coating process is common.

For the cutting specialist it is obvious that this invention can be used with a great variety of tracks and Coating agents can be used without the at Haohteile highlighted in the prior art occur. In particular, the flocculation, drying out, loss of. Solvents that thicken excess

Making Materials, Foaming, and Pollution Bit airborne dirt essentially completely eliminated. The measurement can be precisely controlled with a Minimum surface tension on the ridge at the full shift. No local heating is required for the application of hot melts. Schmelsen are applied, facilitates the reduced loading * coating dwell since application * at temperatures close to Flow agent freezing point, and thus the durability of the layer is ensured. If relevant layers are

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are brought about, the reduced Yerwellscit of absorption reduces the water in the web and 'eliminates' with the local viscous deposit, which Peltier usually causes _y as for example filmrlesa with coating materials, which are applied old with higher Feetoff content. Purely for the application of coating materials on the basis of solvents, such as, for example, painting over coated strips, the shortened dwell time enables the use of paints that would normally dissolve the colors. The separation of the solvent-based coating materials from the air also reduces the risk of fire burns.

Further advantages of the gate direction are the simplicity and the low cost of construction. With the exception of the Hessmittel, which in the preferred embodiment from a calibrating rotating rocker wire guide no moving parts used. The main component can be Raw material or flat metal plates can be made.

Accordingly, it is the primary object of the invention to provide a simple and compact coating apparatus for utilizing a wide variety of coating materials, particularly those materials that are made by Hatur set quickly.

Another aim of the invention is ee _; a process for coating a seeing-moving ball, in which the curing duration is of a very short duration and where the coating material is separated from the atmosphere before and during the viewing process.

A further object of the invention is to provide a stationary control device which is able to operate Liquid coating solution to a level of

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to apply a narrow web and the excess through surface * -. drain openings.

Another object of the invention is to provide a coating device that is used for applying, distributing and hiding the coating fluid a moving web is suitable without the coating material until after the measurement of the ■ Suspend atmosphere.

Further features, advantages and possible applications of an exemplary embodiment of the present invention result from calibration from the following description and the accompanying drawings.

Ss show:

Fig. 1 is a diagram of a typical machine embodying the concept of the invention, where sur Simplification of the end plate ^. That holds the sea bow. Cn and the fluid breakthrough around the " Prevent web edges, were omitted.,

FIG. 2 is an enlarged sectional view of the coating area for a machine according to FIG. ₉

3 shows an enlarged sectional view of a Beschiohtuagebersiches for a machine according to the invention different training, *

FIG. 4 shows a cross section of the coating device in FIG preferred embodiment, and

Fig. 5 shows a cross section of another embodiment of the loading *. stitching device. . ; '■ ..:

In FIG. 1, a strip material 10 is drawn across a ylindeff-shaped Member 11 'sucked, carried by a stand 18' will. Dan the cylinder-shaped member 11 can be any arbitrary.,

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- ⁶ - 1S524Q2

the desired cross-section »have a circular cross-section But it is desirable for manufacturing reasons. Of the Stand 18 supports feat the member 11, including Jeden Verauoh Prevent BU from rotating with the moving web · «· Sin Hessmittel, in this case a "twisting wire bracket 12", is arranged in a small recess, which have been drilled into the link 11 with a milling cutter « The bar of the bracket 12 rises above the surface of the Limb 11 so that, as best from jig. 2 it is apparent an enclosed pocket 15 is formed when the tape 10 is wrapped on the combined component. In jig. I. the Sahl 13 is one of many small openings, ' which have been drilled into the surface of the link 11 are. The openings 13 provide passages for the coating fluid which is desirably into the Pipe 16 is pumped and a conveying cavity in the limb fills and is then pumped out through openings 13 ig6ie pocket 15. Several drainage openings 14 through which the excess Schiohtatröiaungsmittol in the Inside of the link 11 »and from there through line 19 eu a urawal system (not shown) flows. One engine 17 rotates the bracket 12 in a direction that either follows the movement of the web 1o or runs counter to it. !In the The machine shown in Fig. 1 is normally provided with end plates to allow the coating material to flow through Reduce the edges of the trajectory, but for the sake of clarity they are omitted from the position.

Yig. 2 celgt In better detail the Beeohiohtxmgsfiraktio * itself. The twisting wireframe puzzle is complete moistened by the coating material, but its rotation prevents the coating material from running down the hip side of the limb 11. Ss was found that The measurement function is best achieved when the wire wrap bracket is turned at speeds between 2o and 4o

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- wear every minute. Sin special new "Merknal this configuration is the arrangement of AblaufÖffnun gen under animal track in their" Zugangsveg to the pocket 15-Si-Bahn controlled by the returning überflüseige Struantngndttel. Limitation of the flow to the drainage openings. Bas Beschichtutigsnaterlal should eti the inlet apertures are supplied with a "pressure dur large enough, the Besehiahtungstasche / nm when filled zn lialten and a stationary OberachussfJ uss au ensure. However, this pressure must not be so large that it is a! Flowing around the causes around the edges of P _a th ßtrömungsnittels. Pressure relief can be achieved by throttling the entrance, opening the outlet 27, or in many other known ways. Adjustments to the inner stripping pressure can also be ensured by changing the angle resulting from the track and the link 11, in particular the Yora envelope of the outlet openings 14, as shown by the angle oC in Pig * 2. It has been found that a large tone of about 60 ° is most appropriate for the angle o <. This anricksiln ensures good contact, supports the prevention of wrinkling and seals the pocket 15. This arrangement has been used quite successfully in coating hot melts.

Fig. 3 shows the coating function for a different configuration. The various elements are corresponding to j numbered the same slemsntc-n shown in FIG. the dargeetellta gate direction differs from that of Fig. in that the arrangement of the surface openings changed has been and the calibrating heap bow by a knife been replaced let. The fundamental? The main thing of the invention, however, is present in both configurations, Bs ver * It is true for the specialist that there are many other tariffs To be used germinate5s is not intended to be the am-

the invention nar on cwel of the many

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1852402

to restrict configurations of the numbered elements. In addition, it is not important whether the upper Side of the limb 11 or the bottom or a side used. Me invention can be in any desired vertical Alignment to be handled.

The preferred structural arrangement is detailed in Hg. 4 shown. The cylindrical member 11 has been cut away in a section to eitieu YOrderhohlratui 2ο highlighted by a closure plate 22 in the Link 11 was formed with screws 25. The coating material is conveyed into the cavity 20 through an end plate opening, not shown, but indicated generally at 23. Bas Bee sealing material is through the opening 13 conveyed into the pocket 15, where it is distributed and, As previously described, the excess coating material is measured down through the opening 14 out into the drainage cavity 21, which is also in the member 11 is formed by the plate 22. The excess caulking material runs continuously from the cavity 21 'Openings 24 out and from there in dao ümwälzsyetem. Wr the coating materials caused by the dripping dttroh the cavity 21 can be influenced in an undesirable manner, it may be desirable to install guide surfaces or the cavity 21 in a constantly filled state, see below Hold · The drainage tube 27 is provided at the bottom of the wheel cavity 2ο. His guide roller 29 is on one adjustable arm 34 mounted to adjust the angle of the ankle, as above, described to change. Additional Features That In Jig. 4, consist of a remote belt plate (adjacent plate cut away) and a leaf or leaf spring 26 for holding the belt down in firm contact with the loader. Bas sheet or dl , Leaf spring 26 is only d ·· in relatively few types. Sole process required, but for the sake of completeness

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for the illustration let it depicted. Baa cylindrical member 11 alt its inner cavities and 1urderleltimgen along the openings 13 12nd 14- and the Hessmittel 12 will be referred to here as an old resolution head.

Another internal structure is shown in Pig, 5. here are the feed openings 13 through an elongated Schiit " ersetat (also called old 13, since the puncture is identical), which extends along the entire length of the limb 11. An elongated attenuating recess 32 extends also over the entire length of the limb 11. A Sat «screams * Benbolzen 3c iet by opening in the wall of the G-member fitted and 'screwed into the plate 22. Washers 33 provide working surfaces between the wall of the limb 11 and the heads of the stud bolts 3o. When the bolts 30 are screwed inwards, the wall of the Link 11 in the longitudinal direction ura the weakening recess 32 bent and thus closes the slot 13 * In this way the flow of the coating material into the flap 15 can be precisely adjusted. Springs 31 can be provided if necessary to reverse the process «,

The process associated with the invention is not specifically shown in any single figure, but is shown generally in all figures. It consists of folding a web over a cylinder-shaped component / which is suitable to form an enclosed cavity between the web and the cylinder-shaped component Measuring device, which forms a part of the back wall of the cavity, measured, üfeerfltt »·! - _; . Fee BeeohichtuTigaajat "rial is continuously removed from the Hofklr" the complete doorway is carried out in the catfish "- leads to the fact that the coating material of the atypheric is prevented.

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BATH ORIGINAL

The procedure described above was carried out unsuccessfully, while a torriehtsng mentioned in FIG. 1 was used. Rolls of 33 # / MSP with beaded medium are coated in layers with a weight of almost Io / HSP uniformly over the full width of 186.4 cm (75 3/8 inch) at a speed of 61 mm / ain (2oo ft . per min.). A commercially available wax was used with a solidification temperature close to 70 ° O (165 ° P) , and ee was applied at temperatures of 77 ° C - 08 ° C (17o - 19o ° P). A o, 63 cm (1/4 ineh) -Durchaeeeer- ¥'s PSI: elführung ait 0.06 ca (o _o24} inch) -Durchmeaser- "wire was used for the measurement and at 35 U / min in.Sichtung the web Laufee The melted wax was pumped through 0.16 ca (1 / 1.6 ") diameter holes and removed through 0.63 cm (1/4") wide slots. Daa ganse übersohüsaige, gaachmoleene tart as "xu the Beechlohtungekopf promoted and had flowed into the Eückkehreohlit- example, was surüok out arranged beneath the entire length of Beachichtungekopfes dish in the PiSrdertank aittel · a." Ss was found to be necessary "that he read Watch to let airculate continuously through the coating head when the system has not been used in order to prevent the wax from solidifying in the solution and in the coating head.

Although what has been described has been restricted to a few "special exemplary embodiments, it is understood that davit the field of application of the! invention is not to be limited »

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Claims (1)

Claims Gate direction to »Coating a continuerliob moving belt, characterized by a stationary ·· « zjlinder-shaped railway stop member (11) old at least a Stömungsraittel inlet opening (13) and at least a fluid outlet opening (14), furthermore duroh a plusareaesBeil (12), whose axis is parallel to the Axis dee Haltegliecies is aligned, with the Behnhaltoglied (11) and the Flusanegteil (12) through the Junction of their surfaces an elongated ' StrBxjnngsait.telaufnahme-Hohlr ^ um (15). form and the Openings for the saungömittol inflow and - »outflow In each case there is a slack between the flow agent intake hollow area (15) and the inside (2o) of the holding member (11) cry so that the evacuated beeehichtungniamaterial is not blown out of the atmosphere " 2. Device according to Annprueh 1, thereby marked, that the drainage openings (14} is substantially along a first longitudinal line and the inflow openings (13) arranged essentially along a wide longitudinal line are, the latter on the surface of the web j Haltagliedes (11) ziricchen there 'orange longitudinal line and the Hesteil (12) is attached. 3 door direction according to claim 2, characterized in that the surface of the cylindrical member (11) has such a shape that in the area between the longitudinal lines a continuously curved arc ' is formed and the position dox * first longitudinal line at - 109848/0299 ₍ BATHROOM OBIGlNAL Reaching away from the measuring part (12), so that the "one" wipe of the first longitudinal line and the barely of the "measuring part (12) extending plane is the surface of the cylindrical shape. Limbs (11) crossed, the Duroft crossing line being arranged between the Meeateil (12) xXnA of the first longitudinal line « 4 · Device according to claim 1, characterized by »da» « the cheese part (12) has a rotatable bracket. 5. Loading device, characterized by a stationary »zylinderfbrmigea Bahnbja.lteglied (11)» an * _% Whose surface at least one Strömungsiaittelzufluse ·· öffmmg (15) and at least one Strömungsmittelabflussöffnwns (H) is arranged, wherein the openings öind suitable to the loading ü sealing material from the interior (2o) of the ssylinderfurmigen member abfHessen (11) or fclafliessen to this allow; a flow measuring part (12), which is parallel to the axis of the cylinder fBnai- • "Is aligned towards the limb (11)" where the? Lusemeas ~ part (12) and the cylindrical member (11) combined generate a surface contour that is suitable for a Enclosed flow of meat storage pocket (15) * u form when the material web of the cylindrical Limb (11) is supported with the above-mentioned drainage openings (H) in an area with essential Contact between one as described above Track and the cylindrical member (11) arranged and and the above-mentioned inflow openings (13) are suitable are to stick the coating material in the pocket (15). 6. Apparatus according to claim 5 »characterized by suitable Widerdruckmitt ^ l to move the moving web in 109848/0291 BATH ORIGINAL aentli ^ hera keep in contact with dom Mesqtoil (12) eu. 7. Beschiohtungsvorrichtung with a ortefeat, egg-shaped web holding member (11) »daduroh kennaeiohnet that it has on its surface at least one oil drain opening (13) and at least one drain opening (H), openings. τογ saw-are suitable to dissipate from the interior Beechichtungsmaterial (2o) of the cylin & erförmigen öliedee (11) "and esufOhren thereto; a rotatable flue measuring rod (11) is aligned with its axis in such a way that it is arranged parallel to the axis of the cylindrical member (11) and adjacent to the last part in such a way that the surface through the connection point of the measuring bracket (12) and sylinfierfönaigeii member (11) is an elongated Strömungöiaittolaufnahme-Hohlraun erseiigt (15), said cavity being arranged so he _f dafte the Besehichtunsomaterial of the StröiouagemittelzuflwBs3fftmngen (15) and aufniramt verdräiagt the Boachichtungeoaterial by the St.vßiaungsmittel & bflvsaöffGungen (14). 6. Device according to claim ?, equipped with suitable holding devices, which keep the moving web in substantial contact with & ®v measuring device, 9- Device according to Claim 7 * #efceanssielmei by a separated τοη the cylindrical member (11) arranged « Leadership role »whereby the FHimmgorole let the Define the angle over which the calibrating Bahn around the cylinder-shaped Slied puts »and Im a» such a position can be adjusted so that it is suitable « change the tTmwloklunge angle ssu. 1o. Method for Beachiohteii of 3 &>. _{Nen t} thereby gekennaeiofenet »that a MateriaHjalm (jv.or and in w @ ^ @ mtlioli« a Kos- 109848 / 029S BATH ORIGINAL Takt ait the surface of a stationary, srlinderf8r> -atlgen member (1t) is sucked, whereby this "SlIeA (11) ait an elongated cavity on its surface door is", whereby on the surface of the cylindrical member 11 under the Bahn an 8tr8swngw «1 tt elattf ~ 'takeaeehe (15) is created; that in this pocket (15) inspection material is introduced in sufficient quantity to keep the bottle in a constantly filled state, and is supplied in such a way that it prevents the coating material from being removed from the atmosphere; that the use of the hydrostatic oil in the fold (15) pushes the overlying BeBchichtiAJg '- ~' material and that at the same time it does not displace the coating material εα? the web is reassigned and distributed as soon as the web is sucked past the Sascha 15 and across the rear wall of the system. 11. Verfaliron according to claim 1o, characterized in that the excess coating aaterlal by one constantly running ttawäl £ system is led into a Ptirdteil for the Ströiaungaislttelaufuahmetasohe (15) and during of the Hilekfluecea where mean flow pressure is regulated » about the appeal of the Ströerangeiaittela in fasche 19 to 12, Terfaliren to Anapnich 11, paid for the fact that the buckle in the streamline pocket (15) is regulated by inserting the Witikelf * under which the track from the sylinäerfSraige 'slled (11) sewn during the run wraps around the bottle (15). BATH ORIGINAL 15 · Β — ehl6htmiirooht * Be, gekennseielmet dmvofe «la ortsfestes, ^ ylinderfSralges Bandhalteglied (11)» 4a · on an atlnor surface with sumiMest of a current * -. Intermediate fluid inflow (13) wad an elongated fluid inflow hole; (13) which runs essentially over the full length of the rail link (11), the openings being suitable for draining the Beeohicbtusgenmaterial to the inside (£ o) of the rail link (11) fcstr. Von dleeea aufeuneksen; a fluaeaeMiteil (12), the fee point * its axis parallel eur Aohse de «feyliaderfuradgen ^v * member (11) aligned and which is arranged to theee« amgren * rend, which »through the connection points dor surfaces de? Heaevorrichtirag (12) and the cylindrical member (11) an elongated flow agent * telatifiiahiaohohlratua is generated »whereby the piling space is arranged so that it takes up the benching material clay from the StrSsmngsmlttelzuflueeahllts and displaces it through the drainage openings (14); and means cum bending the wall of the cylindrical member (11) * to change the width of the otröoungsaiittelsfufluseehlitses (13) eu. 14 · Door direction according to claim 13 * characterized by Wi- " The holding means are suitable for holding a moving web in contact with the measuring part (12). 15 · Door direction according to claim 13 »characterized by this« that the measuring part is a rotating bracket (12). 16. Torriohtung according to claim 15 »identified by elm * arranged separately from the cylindrical member (11) Guide roller, the guide roller being suitable 108848/029 « Define angles at which * the one extending, moving web van sets the Eylinderfönnige member (11), and in such a position a ^ is ustierbar that ββ geeig net is, change the angle of wrap ssu. 109848/0299 SA ORIGINAL