DE7104435U - DEVICE FOR CONTINUOUS ENVELOPMENT OF A MATERIAL IN THE TOBACCO-PROCESSING INDUSTRY, IN PARTICULAR FILTER MATERIAL, WITH A WRAPPING STRIP - Google Patents

Description

Jtr

WERKE KORBER * CO. KC. HAMBURG ζΓ

Bergedorf, February 5, 1971 Patent Hi / Soh

St.

Yorriohtung sum continuous wrapping of a material the tobacco processing industry, in particular τοη filter material, with a wrapper strip

The firing relates to a requirement for the continuous wrapping of a material of the tobacco-producing industry, In particular τοη filter material, with a Uahüllungsatreifen, with a conveyor total long-term conveying da · e » materials and with a one with B & issohmels glue tsrs level Xante des TJmhüllungsetreifons constantly enveloping strandBlldeaittel «

Fllterst & be für sabak articles are predominantly manufactured today using the rope process. Saber is generally a gate-treated stream τοη filter material surrounded with a covering strip, the edge of which is glued with glue and overlapping. In today's extremely high windy and windy conditions, proper gluing of the strand seam is of great importance, since the filter rope, which is pressed together to form a strand, exerts a relatively great tension on the wrapping strip due to its natural elasticity. If the door gluing of the wrapping strip is not sufficient, then the strand opens again, which leads to unsafe articles and disruptions in production. The problem portrayed in the gate is particularly serious with TerwenduBj tob Baiesohmelskleber, which is increasingly used by F ^ lterstrangBasehlBen. It never has to be ensured that the applied skin glue is activated when the strand is completely folded, ie when the glue provided with glue is folded over as a glue . on the underlying line of the filling strip has puffed up. If the adhesive is then not activated, an earthmmgsgeo depending on the connection of the overlapping looks can be guaranteed.

71Θ4435-8.6.71

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Stw .: FiIt er st rangle ime η-So hmelzkle-aTbm-Aus sohe idung Bergedorf, on February 5, 1971 - Hauni file 1022

The task of the masonry is to ensure perfect bonding to ensure the maturity of the Uabtilungseif.

According to the hiring, this is achieved by the fact that the strand forming material is assigned a heating device for the hot melt adhesive located on the wrapping strip. This heating device can aioh, seen in the direction of movement of the Umhtillungsat ripe, but before the strand forming means at its height, so that the wrapping strip only has to cover a very short distance to the final gluing in the format part of the strand forming means and the proper gluing is ensured in the process. An even more secure bond is achieved according to a preferred embodiment the hiring daduroh achieved that the heating device a Forms part of the strand-forming agent seibat. Here the Heating device with the folding device, which folds over the edge provided with hot-melt adhesive and on the one below lying part of the wrapping strip presses, form a structural unit. However, you heating device can also connect directly to this folding part. A particularly good one Heat transfer from the surface of the heating device to the covering strip is ensured if, according to a further embodiment of the invention, the surface of the heating device in the heating area is at least approximately adapted to the shape of the covering strip.

With the high speeds of up to 300m / min achieved with modern strand machines, there is a risk that the properly formed structure of the circumference will open again when it is ripe, since the hot melt adhesive needs a certain time to set after it has left the heating zone. Ub the Crucially important time to cool down the hot melt adhesive and thus Aa * becoming too short, according to a further development, the heating device becomes a cooling device For forced cooling, the glued, covered strand, seen in the direction of movement, the Xfeahüllungsstrelfene, arranged in a row. The surface of the cooler is the shape of the finished

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Deputy: Filterstrangleimen-Sobmelzkleljer-Gbm-Auseoheichtung Bergedorf, February 5, 1971 - Hauni-Alcte 1022

glued strand advantageously adapted to an optimal To achieve cooling effect. The innovation will be aabamd vo © Implementation examples with reference to the drawing explained in more detail. It shows:

Figure 1 shows a format part and a sioh adjoining it

Driving part of a filter line machine with a separate heat source to activate hot melt adhesive strips,

Figure 2 to activate hot melt adhesive. * ⁴ >?

heated guide part,

Figure 3 is a section along line IH-III duroh Leading part of Figure 2, Btrgedorf, February 5, 1971 - Hami file 1022

figur 4 a for cooling a Sohmelzkleiestreiiena,

which is heated up immediately in front of the wrapping the wrapping strip is applied, cool- "bsr coating-tQs Piilartnagteil,

Figure $ a guide part with a heating panel aur MIv-

the heating of the hot melt adhesive strips that naoh pulling the wrapping strip from that Bobine have been thawed out, and with one at dl · Heiestreoke see subsequent Ktthlstreoke,

fig. 6 inen TJmhttllungsstreifa with stripe-shaped ent

Hot melt adhesive applied along one edge and two further OLetatoff strips arranged alternately along the edges to connect the TtabUllungsstrip with the filter material

In FIG. 1, a filter line forming means 1 of a filter line machine (eg of the type Of from Bauni-Verke Körber & Co. KG, Hamburg) is shown. The filter line forming means 1 consists of a format part 2 and an adjoining guide part 3Sem format part 2 can be fed in through a nozzle-shaped tube 4 filter material 6, β.Bo made of acetate, which has been treated in a sail of the fllterstrangaiasohine, not shown US Pat. No. 2,900,988, the strand forming means 1 is penetrated by an endless conveyor belt, the so-called foxmat belt 7, which is guided over Umlon rollers 8 and 9 and over tensioning rollers 11, 12 and 13. Kittels is one of the aforementioned rollers The format belt 7 is drivable · A TJm wrapping strip 14 for the filter rod is guided over the format belt 7 and is pulled off a reel 16 and opened to which three strips 17, 18 and 19 (shown in detail in FIG. 6) made of hot-activated adhesive, hereinafter referred to as hot-melt adhesive for short, are applied. from the fa. BOSSIK GmbH, Oherursel / Ss _t

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under the Beetell Mr. 1194 hot melt adhesives sold over A heat source 21 in the form of an infrared radiator 23 attachable to a voltage source 22 is attached under a parabolic mirror 24 to the conveying path of the wrapping strip 14.

Sas Formatte11 2 is designed in well-known catfish so that first the format tape 7 with the one lying on it Wrapping strip 14 is bent in a U-shape in zone A. In zone B, a cover 26 presses one part of the wrapping strip 14 down. It consecrates in the Abdeokung 26 Zone O Eurilok. In this zone there is an additional cover 27 the other rope of the wrapping strip 14 with the edge on which the Sohmelz adhesive strip 17 is applied, to the already manufactured filter rod body. The guide part 3 »that consists of two parts 3a, 3b with corresponding ones for receiving the filter rod consists of suitable troughs, has the task of guiding the finished formed filter rod 28 so that that ar its shape during the solidification of the Melt adhesive β retains. In the direction of movement S of the filter rod, a knife device (not shown) to cut off / finished filter rods from the filter rod 28 is arranged next to the deflection roller 8. Operation of the arrangement of Figure 1t The driven format belt 7 calibrates the wrapping strip from the bobbin 16 and through the strand-forming means 1, the infrared emitter 23 heats the hot melt adhesive strips 17, 18 and 19 so that they are activated, i.e. adhesively · The filter material 6 runs continuously through the triohter 4 and reaches the cover strip 14 from a recess that is browned in the underside of the holder. After laying the wrapping strip 14 around the filter material 6 in the format 11 2, the finished shaped filter rod 28 is guided through the guide part 3, where the Sohmelz adhesive strips 17 · 18 and 19 are cooled so far that the filter rod seam cannot open much more. Ser strip 17 on the Xante of the covering strip 14 forms

dl · IbM ₉ vflbrend dl · arguing 18 * md 19 s »β la or connection swlsoben dm OhbfilliBgsstrelfen 14« nd the filter material 6 this ·

Ia Figures 2 tm * 9 1st the Vtraaajnell "21 of 4 1 nioht eetor vorbanden · Bt *" le "sttenstrangfrlldenlttel 101 consists of elnea Forsattell 102 md a" le & rongetell 103 "the heated 1st and soalt eiae Belsrtreoke Tox of completion in Fermatteil 102 Shaped filter rod 128 represents. To heat the upper 1st "ad entere Sail 103a or 103b of the guide ·" te ils 103 old wells 131a ta * versebon · 131b In Xanmern 132a bsv · 132b and 133a bsv. 133b sewing, The aforementioned canoes are via a pipeline 134 or 136 in a container 13? for a liquid heat medium, for example oil "connected" while an electrical heat exchanger 138 is located. A pump 139 ensures an unavoidable circulation of the liquid heat aediuiaa. The remaining parts of FIGS. 2 and 3, which correspond to similar parts of FIG. 1, have the glelobed reference numbers, increased by 100, and are no longer specifically explained.

Mode of operation of the arrangement of FIGS. 2 and 3: The liquid heating medium heated in the container 137 is through the pump 139 through the pipe 134 and conveyed through the bores 131a and 131b of the guide part 103, the thus is heated and the hot melt adhesive on the wrapping strip 114 is heated and thus activated, so that the finished molded platter strand 128 on the way through the guide & part 103 can stick.

In Figure 4, the upper part 203a of the guide part 203 is flat designed like the upper part 103a of FIGS. 2 and 3 with the difference that the bores 231a no longer exist a heat medium, but a cooling medium is conveyed, in the present case £ (ihlluft, which is from the fan 241 is required! · The guide part 203 thus acts as a cooling strip for the pre-formed filter rod 228. For applying the glue strip to one edge of the

Wrapping strip 214 is used by a glue application device 245 with a glue sofa disk 242, on the circumference 243 of which the hot-melt adhesive aa is released into a heated container 240. A much larger glue application device 244 with a glue holder 246, a removal roller 247 and two distributor plates 243 and 249 (249 not visible) is used to apply the strips 218 and 219 (not visible) between the edges of the wrapping strip, which is no longer made of hot-melt adhesive. but from normal glue, e.g. from the Ea. SICHEIiLEIU GmbH, Hanover, Sichoplast AS 1142 .

How the arrangement of Figure 4 works:

From the glue application device 244 two strips 218, 219 made of normal glue, from the glue disc 242 a strip 217 made of heated and therefore flowable hot-melt adhesive the wrapper strip 214 is applied. Then the Tilterstrang 228 in the format part 202 © and those with hot-melt adhesive provided seam through the cooling section into the upper one Ropes 203a and 203b of the guiding part 203 out. Duron the cooling solidifies the hot melt adhesive so that the hat can no longer open. Stripes 218 and 219 from no » Paint glue for connecting the filter material 206 to the wrapping strip 214 has no effect on the seam strength Influence and can take effect later.

The cooling section in FIG. 4 can, of course, also match the format part 2 in FIG. 1 and the pickling strip in FIGS. 2 and 3 be in order.

In FIG. 5, the guide part 303 is divided into two cables 303A and 303-B, which form a heating section or a cooling section. The part 3Ο3Δ is like the guide part 103 in FIGS. 2 and 3, the part 3O3B like the guide part 203 in FIG Figure 4 formed. 351 is a glue application device for Application of heated hot melt adhesive in three strips 317, 318 and 319 (not visible).

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Sew .: Filterstrangleiaen- ^ baelskleDer ^ ba-Attflaoheidnig Bergedorf, the ^. iebrnar 1971 - Hauni File 1022

Mode of operation of the arrangement of FIG. 5: Death of the adhesive application device 351 becomes Sohaelskleie ta three strips 317, 318 τπκΤ. 319 on the üahailnngsatreifen upset. Haoh the formation of the PiIt er et range 3 328 La Forast part 302 is the filter rod 328 by HeiMtec (3O3A) ge, where the swisohen Leie mission h eile md ieaaaettoil 302 again cooled tmd aö ^ lieiierweiee inactive melt adhesive is again properly activated and the seam is well glued, the filter thread 52S is ideal along the Etlhletrecke (3O3B), where the Sehnelekletler solidifies and the sight receives its firmness. In Figure 6, the Xtahullnngsetreifen 14 nooh einaal ocaondera heranege ze is worth old the stripes 17, 18 and 19.

The gate part of the opening consists τ or allea in that the Loan seam also with very söhnellaufβadeη machines wheel Terwen-

Thinly glued by hot whisker glue.

By means of the Yorsening of an individual arrangement Forced cooling of the glued seam is also

A sufficient amount of sunshine is guaranteed to set the refreshment.

- Sohut claims -

Claims (8)

Stw.t? Ilte ^ i; rangleimen-Sohmelzkle- & bm-Au08ohsendung Bergedorf, d-n February 5, 1971 - Hauni-Akt 1022 Sohatzverbindohe 1. Device for the continuous wrapping of a material the tahak processing industry, especially of filter material, with a wrapping strip, with a conveyor for the longitudinal axial conveying of the material and with a one edge of the wrapping strip provided with hot-melt adhesive continuously turning over strand-forming means, characterized in that the strand-forming means (1, 101, 501} has a Heating device (21, 103a, 303A) for on the wrapping strip (Hr 114, 314) located hot melt adhesive assigned is. 2. Toniohtung according to claim 1, characterized in that the pickling device (21) sioh, seen in the direction of movement of the TJmhüllungsstreifens (14), is located in front of the strand-forming means (1) and in its vicinity. 3. Apparatus according to claim 1, characterized in that dafi the heating device (103a, 303A) forms part of the strand forming means (101, 301). 4. Device naoh one or more of the preceding claims, characterized daduroh that the surface of the Heating device (103a, 3O3A) is at least approximately matched to the shape of the wrapping strip (114, 314) in the heating area. 5. Device naoh one or more of the preceding claims, characterized in that the heating device (3O3A) has a cooling device (3O3B) for forced cooling of the glued covered strand (328), viewed in the direction of movement of the wrapping strip, is arranged. 6. Device NaOH claim 5, characterized daduroh _r that the surface of the cooling device (3O3B) the, is at least approximately adapted form of the pre-glued strand. : i Il fw Stw. 2 iiltexetrangleiiaen-Sohmelslcleber-abm-AmeeobeifiHBe I Psrgedorf, February 5th, 1971 - Hauai File 1022 7. Device Baoh one or more de-s? -forhergebdeB Claims, characterized dtsroh a la area of the map sheet arranged ElebBtoffavftragronriehtmBg £ ma Apply tob erwiroter HeiesohaBlsklebar on an edge dee Enveloping strips 8. Torriohttmg after one or more of the A-test OBS 1 6, marked doroh a gate to the strand formation means arranged adhesive application tem hot stool glue avf an edge of the