CA2321471A1 - Method of, and device for, continuously packing nonwoven-mats - Google Patents
Method of, and device for, continuously packing nonwoven-mats Download PDFInfo
- Publication number
- CA2321471A1 CA2321471A1 CA002321471A CA2321471A CA2321471A1 CA 2321471 A1 CA2321471 A1 CA 2321471A1 CA 002321471 A CA002321471 A CA 002321471A CA 2321471 A CA2321471 A CA 2321471A CA 2321471 A1 CA2321471 A1 CA 2321471A1
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- Canada
- Prior art keywords
- mats
- mat
- nonwoven
- stack
- conveying
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
- B65B63/02—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for compressing or compacting articles or materials prior to wrapping or insertion in containers or receptacles
- B65B63/026—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for compressing or compacting articles or materials prior to wrapping or insertion in containers or receptacles for compressing by feeding articles through a narrowing space
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Packaging Of Special Articles (AREA)
Abstract
The invention relates to a method and a device for the continuous packing of glass mats, comprising the following: a) a conveyor device (1) for providing a continuous supply of glass mats, cut to size, and for conveying these to b1) a turning device (2) for creating twin mats consisting of two glass mats arranged one on top of the other or to (b2) an overflow station for creating twin mats consisting of two glass mats arranged one on top of the other; c) a conveyor device (3) for conveying the twin mats to d) a stacking device (4); e) a conveyor device (6) for conveying the stacked glass mats to f) a press (7) which has a walking device whose upper and lower mechanisms form the plates of the press and are tilted towards each other so as to taper in the direction of movement of the stack, so that the stack of glass mats is progressively pressed to its smallest height; g) a cover film supply system (8) positioned at the exit of the press (7) and h) a wrapping device (9) for wrapping the stack of glass mats, which slides onto a support and is surrounded by cover film, in a tension film.
Description
AUG-15-00 17:20 1212 972 5487 P.03 R-770 Job-151 ~8/I~~/00 TUE 18:11 FAX 1212 972 5487 COHEN PONTANI ET AL ~J003 r~tethod of, and device for, continuously packing nonwoven mats:
Description The invention relates to a method of continuously packing nonwoven mats according to the preamble of patent claim 1 and to a device for implementing the method accordiru.;
to patent claim 4.
For transportation purposes, ~.n practice, the cut-to--size nonwoven mats are stacked and then have to be enclosed.
)=y a protective film for protection during transportation anct against weathering.
Since the volume of such a nonwoven-rnat stack is veer large, i.e. it would take up too much transporting space, th!~
=aaclcs are pressed, and the stack height is reduced, beforE~
the stacks are wrapped in film. However, problems arise when the pressed stack has to leave the press for wrapping, since, without being subjected to pressure, the stack would ~.;rmediately assume its origizsal height again.
The object of the inventiox~ is thus to provide a method and a device which allow continuous packing of :ionwoven mats which are combined to Lorm a nonwoven-mat :tack.
1~s tar as the, method is concerned, this object is ~ichieved by the following steps:
AUG-15-00 17:20 . 1212 972 5467 P.04 R-770 Job-151 8/I5/00 TUE 16:11 FAX 1212 972 5487 COHEN PONTANI ET AL ~ 004 a1} the cut-to-size nonwoven mats are fed individually, one after the other, to a turning device, in whi..ch one of two successive nonwoven mats is turned such that it can be positioned on the preceding or the following nonwoven mat either by way of its coating or by way of its nonwoven side, or a2} the cutJto-size nonwoven mats are fed individually, one after the other, to an overflow station, iii which the respectively first mat of the successive mats is ~~xought into a standby position until the following mat has z~eached the front edge of the overflow station, and then the first mat is positioned leading edge to leading edge on the ~mcond mat moving in beneath it, b) the twin mat formed in this way is fed to a ~~tacking device, in which a nonwoven-mat stack is ~Qrmed frcam a plurality of such twin mats, the twin mats being p4sitioned cane upon the other either by way of their coating or' by way cW trieir nonwoven sides, c) tile nonwoven-mat stack is then .f..ed to a px'ess. i!1 which the height is reduced section by section as the stack :Ls advanced forward, d} as the stack exits from the press, the stack is~
progressively enclosed by a cover film which is closed on the ~~nd s i de , and e) a tension film is wrapped arounr the wr2.pped _;:.c aa-r:,_erv~~~ ,~, end BUG-15-00 17:20 1212 972 5487 P.05 R-710 Job-151 8/1.5/00 TUE 18:11 FAX 1212 972 5487 COHEN PONTANI ET AL ~ 005 -f) once the entire stack has e~a.ted fxom the press, finally, the cover film ~.s welded at its trailing end.
In this case, the tension film is preferably designeca as a thin stretch film, and the degree of overlap of the tension film in relation to the surface area of the cover film is, for example, 50~.
The device according to the invention for continuously packing nonwoven mats for the purpose of implementing the method as claimed in claims 1-3 comprises a) a conveying device for cozztxnuously supplying thE~
cut-to-size nonwoven mats and for feedirxg the same to a bl) turning device for forming twin mats comprising two nonwovexi mats located one upon the other, or b2) an overflow station foz~ forming twin mats comprising two nonwoven mats located one upon the other, c) a conveying device for feeding the twin mats to d) stacking device, e) a conveying device for feeding the stacked r:.onwoven mats to a f) press which has an advancing mechanism, of which the top and bottom advancing mechanisms form the pressing f.lates which taper toward one another in the direction of movement of the stack, with the result thar_. the nonwoven-mar_ Mack car. be pressed step-by-step to its smallest height, ar<i AUG-15-00 17:20 1212 972 5487 P.06 R-770 Job-151 78/,15/00 TUE 16:11 FAX 1212 972 5487 COHEN PONTANI ET AL ~ 006 g) a cover-film teed at the exit of the press, and z°~.
h) wrapping device for wrapping the nonwoven-mat stack, which slides onto a support anal is enclosed by the cover film, in a tension film.
In this case, the wrapping device may comprise a wrapping ring which encloses the nonwoven-mat stack and ca:n )r~e made to circulate .
Accord~.ng to further configurations of the invention, the conveying device, which is arranged upstream of the stacking device, is a pair of interengaging combs comprising a. stationary comb and a movable comb, and the conveying cevice which is arranged between the stacking device and the press is designed as a turntable with pushers.
The conveying devices, which are designed as conveying belts, may be divided up into inda.va,dual conveying-x~el.t sections which are coordinated with one another for the required conveying speed.
According to one configuration of the invention, o.l t_he inlet s:i..de, the turning device has a separating flap a~:d t-ransporting rollers which feed the mats to a run-on and iun-c>ff wedge, wit>'I the result that the mats which are directed ~=ertically upward by the run-on wedge can be guided between t.wo vertical side walls by means of conveying rollers. A mat-~~ligning means can be moved in between the side walls. The rlats - following revers~~:l of tl~e direction of ~,otation of rl~?
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AUG-15-00 17:20 1212 972 5487 P.07 R-770 Job-151 18/15/00 .TUE 16:12 FAX 1212 972 5487 COHEN PONTANI ET AL ~ 007 second mat, which is guided through therebeneath, and can be Positioned on said second mat.
The stacking device has a conveying device by means cf which the a~,igz~ed twin mat can be advanced via a raisable and lowerable lifting platform which collects the twin mats_ F:,Iso provided is a rolling-shutter wall which is adjacent to the lifting platform on one side and serves as a stop For tlie:
twin mats, as well as a pusher by means of which, once the rolling-shutter wall has teen opened, the mat stack stacked to the desired height can be pushed onto the pivot table frorn the lifting platform.
The press itself comprises two advancing mechanisms ~~hich are arranged one above the other and tapEr toward one another on the outlet side. The advancing mechanism comprisF:~
1=~ars which are arranged closely one beside the other and o' v,~hich in each case the next but one is connected to a frame,, ~~ith the result that two frames located one inside the other ~.re formed. Provided at the Corners of the Lrames are eccentrics which cause the frames to move eccentrically, the top and the bottom advancing mechanisms operating in opposite;
clirecti.ons, with the result that the mat stack located x~etween the advancing mechaxzi.sms can be moved further in tJ~e conveying direction.
The invention is explained he reimbelow with refere~:c.<~
t.o t? a drawings, in wt~.iclr:
AlIG-15-00 17:20 1212 972 5487 P.08 R-770 Job-151 )8/.1:/00 ~TUE 18:12 FAX 1212 972 5487 COHEN PONTANI ET AL X1008 -s-Figure 1 shows a schematic side view of the installation as a wh.o 1 a , Figures 2a, b, c show the turning device with two views in detail form, Figures 3a, b, c show the press with the following wrapping device with two views in detail form, and Fi4ure 4 shows the stacker_ The zzonwoven mats, once produced and cut to size, azv~
conveyed to a turning device 2 on a conveying device 1.
The turning device is necessary because approximately 50of all the mats arriving have to be positioned one upon the ether in the turned state, i.e. in each case the two top sides come to rest facing one anothex (face to face)_ The mats axriving for turning purposes are guided through 90"
L.pward into the turning device from the conveying path and a.re then reintroduced through 90° into the conveying path from the turning device.
The turning device comprises separating flaps 21, the run-on c.nd run-off wedge 22, p:ivotabl.e inlet and outlet guides 2n, transporting rollers 23 above the x-un--on and run-off wedge c2, the conveying--roller system 25 in the turner, and a mat-c.ligning means ir'i the turning device, and a turner. framework.
The cut mats are positioned first of all on the conveying ~~ath, to 'be precise either as a single mat or_ ds a number of mats im a row one beside the oL.her. once tEoe f;_ws'~ rnat-.
w~achE°s tt,e. ~:~.par~~,.i.rcg i 1,3~ iL, tire -! eadi ~_:~ ~cic~e~
<>~ ;:~}~~ ana hUG-15-00 17:20 1212 972 54BT P.09 R-770 Job-151 8/15/00 TUE 16:12 FAg 1212 972 5487 COHEN PONTANI ET AL f~009 _ 7 _ is raised and conveyed onto the runWon wedge 22. Said mat thus leaves the run-through conveying path. The following ma.t:
slides over the flap 21, which has been lowered again in tl~e interim, and maintains its conveying direction.
The runWon and run-off wedge 22 predetermines the cirection then to be taken. by the mats which are to be turt~ze~3 and/or those which have been turnEd, and serves for guiding a.nd/or bridging purposes into and out of the turning c.evice 2.
The mats pushed by the transporting rollers 23 are guided respectively into and out of the turning device by the inlet ~.nd outlet guides 24. These guidES are configured as ~~ivotable flaps.
'T'he mats pass from the run-on wedge 22 into the turning c:eW ce. The latter receives the mats by means of the roller ~.ystem 27 located at the bottom end and guides them through ~~0° in relation to the conveying direction between two apposite side wa~.7.s 26. The distance between tt~e drive rollers of the roller system 27 is smaller in the top region c~f the side walls, with the result that the mats are elamp~cl in between the opposite rollers. The top row of rollers ma_y x~e pivoted such that the distance between the opposite rollers increases_ Once the mats have .been transported upward betweezz the walls, d mat-aligning mea:z,s 28 - in Lice tozm of a com't~
~ .~ s wwi~.r3 s_rm Jnce t-im mar.- ~~ ~ y~.i rcJ mE:~-._m :za:~ beer swung it:, AUG-15-00 17:20 1212 972 5487 P.10 8-770 Job-151 '8/15/00 TUE 16:12 FAX 1212 972 5487 COHEN PONTANI ET AL ~ 010 t:he top rows of rollers pivot out of the side walls, and the clots drop, by way of their bottom edge, onto the mat-alignin~~
neans, i.e. onto the bars thereof which are located transversely to the side walls, and are thus aligned. ~'he toc~
pair of rollers then pivots in again and retains the mat.
1~'ollowing this alignment, the mat-aligning means mores out of l:he side walls again and releases the turning shaft. F3y :_EVersal of the direction of rotation of the rollers, the mat ~~an then be conveyed out of the turning device, the inlet and ~~utlet guide ~4 having been activated previously, with the result that the outlet onto the run-otf. wedge has been released.
.As a result, the mats are transported downward into the ~on~sreya.ng direction of the through-running mat and - by w'irtue of adapted speed - are positioned precisely leading edge to leading edge.
zn the case of mats which are not turned, the conveying path has a secoxid conveying path positioned above it. A separating flap raises a first mat and brizags in onto the second conveying path. The Lollowing mat moves in ben.~-at~ h the same. The two mats are then positioned one upon the othwr leading edge to leading edge.
Once the "twin mat" has passed the next conveying belt, it reaches a stacker by way of which it is picked up_ The stacker 4 has the convey~.ng device 3. ~a~a conveying device nay compr_~.~,~_~ .r p,:iy c>i comb~, wir.n ;=~ ..ix.ed co;nb arid m ~4UG-15-00 17:20 1212 912 5487 P.11 R-770 Job-151 X8/15/00 TUE 16:13 FAX 1212 972 5487 COHEN PONTANI ET AL 01011 movable comb. The twin mat coming from the turning device 2 basses, by way of the conveying device, onto a rolling-:ahutter support or lifting platform, which serves for :_owering the stack which is formed. There, the mats are set down arid the support, with the mats, moves down by at least double the mat thickness, in order that the following "twin Gnat" can be stacked on the same plane. This operation is then :=epeated until such time as the maximum stack height of ;approximately 1.~ m has been reached.
pnce the rolling-shutter wall, which serves at the ;game time as a stop for the mat stack on one side, has been :raised, r.he nonwoven-mat stack is then pushed by a pusher 5 ~~nto the pivot table 6, which can be rotated through 90°.
If the stack is already located in the removal direction cm1 the rolling shutter, then the table, rather than having tc~ be pivoted through 90°, can remain in the conveying direction.
The nonwoven-mat stack is then pushed into the advancing mechanism of the press 7 by a second pusher. The stack is then drawn in between the advancing mechanisms, by eccentric movement of the same, and gradually pressed together by the advancing mechanisms tapering toward one another.
In this reiinemez~.t, the advancing mechanism compri~~fa a multiplicity of bars which are arranged closely one besidE~
the other and of which each and the next but one in each ca::E:
~re connected to a frame. This prr>dures two -ndividual fr,=imf~:
" a ~v~~r~ ;~r_~ inside the other _ V~.a fn,ir <~c~u~~ie~ eccentrics hUG-15-00 17:20 1212 972 5487 P.12 R-T70 Job-151 X8/15/00 .TUE 18:13 FAX 1212 972 5487 COHEN PONTANI ET AL ~ O1Z
<~rranged at the corners of the frames in each case, the 7:rames are made to move in eccentric circular movements opposed by 180°. The four double eccentrics are driven :synchronously via chain/toothed belts or the like, in such a.
way that the top and bottom advancing mechanisms operate in c7pposite directions_ bocated above arid beneath the advancing mechanism, at °::he end of the press 7 , is iri eaCl7, case one film rol l , the Films of which are welded together in the center by the r_railing-end welding of the previously conveyed stack.
The nonwoven mats which have been pressed together_~
shortly beforehand are pushed into said "film curtain" as they leave the press. Tire film is then positioned longitudinally about the mat stack which is gradually conveyed out of the advancing mechanism.
A wrapping ring ~, which rotates about the nonwoven-mat stack preferably in the counterclockwise direction (as seen in the conveying direction), then begins to wrap said nonwoven-mat stack in an extremely thin stretch film. The degree of overlap of said film is, fox example, 5oa.
Once the entire mat stack has then been enclosed by the Cover film, we7.ding bars (not illustrated) which are located between the end of the press anal ttie wrapping ring are moved toward one another.
As a result, the fi7.m is welded tUCy:Lluer iri two lin<::;
t a dist~n~~e of a:zX>r~woximatWy :L00 mm. Or:e 1 .;u~v t-t~~;r we~d~
~4UG-.15-00 17:20 1212 972 5487 P.13 R-770 Job-151 X8/15/00 .TUE 18:13 FAg 1212 972 5487 COHEN PONTANI ET AL ~ 013 t:he end of this film which has previously been. positioned :.ongitudinally around the mat stack.
'.Che other line welds the two ends of the film again to form a '~' film curtain" .
In the same operat~.on, the film is severed between i=hese two welded 1. i.nes .
The nonwoven-mat stack, pressed and wrapped in fia.m, may then be received by a conveying system which passes =ither, via a push-off means, to the warehouse or directly into the truck-loading zone.
Description The invention relates to a method of continuously packing nonwoven mats according to the preamble of patent claim 1 and to a device for implementing the method accordiru.;
to patent claim 4.
For transportation purposes, ~.n practice, the cut-to--size nonwoven mats are stacked and then have to be enclosed.
)=y a protective film for protection during transportation anct against weathering.
Since the volume of such a nonwoven-rnat stack is veer large, i.e. it would take up too much transporting space, th!~
=aaclcs are pressed, and the stack height is reduced, beforE~
the stacks are wrapped in film. However, problems arise when the pressed stack has to leave the press for wrapping, since, without being subjected to pressure, the stack would ~.;rmediately assume its origizsal height again.
The object of the inventiox~ is thus to provide a method and a device which allow continuous packing of :ionwoven mats which are combined to Lorm a nonwoven-mat :tack.
1~s tar as the, method is concerned, this object is ~ichieved by the following steps:
AUG-15-00 17:20 . 1212 972 5467 P.04 R-770 Job-151 8/I5/00 TUE 16:11 FAX 1212 972 5487 COHEN PONTANI ET AL ~ 004 a1} the cut-to-size nonwoven mats are fed individually, one after the other, to a turning device, in whi..ch one of two successive nonwoven mats is turned such that it can be positioned on the preceding or the following nonwoven mat either by way of its coating or by way of its nonwoven side, or a2} the cutJto-size nonwoven mats are fed individually, one after the other, to an overflow station, iii which the respectively first mat of the successive mats is ~~xought into a standby position until the following mat has z~eached the front edge of the overflow station, and then the first mat is positioned leading edge to leading edge on the ~mcond mat moving in beneath it, b) the twin mat formed in this way is fed to a ~~tacking device, in which a nonwoven-mat stack is ~Qrmed frcam a plurality of such twin mats, the twin mats being p4sitioned cane upon the other either by way of their coating or' by way cW trieir nonwoven sides, c) tile nonwoven-mat stack is then .f..ed to a px'ess. i!1 which the height is reduced section by section as the stack :Ls advanced forward, d} as the stack exits from the press, the stack is~
progressively enclosed by a cover film which is closed on the ~~nd s i de , and e) a tension film is wrapped arounr the wr2.pped _;:.c aa-r:,_erv~~~ ,~, end BUG-15-00 17:20 1212 972 5487 P.05 R-710 Job-151 8/1.5/00 TUE 18:11 FAX 1212 972 5487 COHEN PONTANI ET AL ~ 005 -f) once the entire stack has e~a.ted fxom the press, finally, the cover film ~.s welded at its trailing end.
In this case, the tension film is preferably designeca as a thin stretch film, and the degree of overlap of the tension film in relation to the surface area of the cover film is, for example, 50~.
The device according to the invention for continuously packing nonwoven mats for the purpose of implementing the method as claimed in claims 1-3 comprises a) a conveying device for cozztxnuously supplying thE~
cut-to-size nonwoven mats and for feedirxg the same to a bl) turning device for forming twin mats comprising two nonwovexi mats located one upon the other, or b2) an overflow station foz~ forming twin mats comprising two nonwoven mats located one upon the other, c) a conveying device for feeding the twin mats to d) stacking device, e) a conveying device for feeding the stacked r:.onwoven mats to a f) press which has an advancing mechanism, of which the top and bottom advancing mechanisms form the pressing f.lates which taper toward one another in the direction of movement of the stack, with the result thar_. the nonwoven-mar_ Mack car. be pressed step-by-step to its smallest height, ar<i AUG-15-00 17:20 1212 972 5487 P.06 R-770 Job-151 78/,15/00 TUE 16:11 FAX 1212 972 5487 COHEN PONTANI ET AL ~ 006 g) a cover-film teed at the exit of the press, and z°~.
h) wrapping device for wrapping the nonwoven-mat stack, which slides onto a support anal is enclosed by the cover film, in a tension film.
In this case, the wrapping device may comprise a wrapping ring which encloses the nonwoven-mat stack and ca:n )r~e made to circulate .
Accord~.ng to further configurations of the invention, the conveying device, which is arranged upstream of the stacking device, is a pair of interengaging combs comprising a. stationary comb and a movable comb, and the conveying cevice which is arranged between the stacking device and the press is designed as a turntable with pushers.
The conveying devices, which are designed as conveying belts, may be divided up into inda.va,dual conveying-x~el.t sections which are coordinated with one another for the required conveying speed.
According to one configuration of the invention, o.l t_he inlet s:i..de, the turning device has a separating flap a~:d t-ransporting rollers which feed the mats to a run-on and iun-c>ff wedge, wit>'I the result that the mats which are directed ~=ertically upward by the run-on wedge can be guided between t.wo vertical side walls by means of conveying rollers. A mat-~~ligning means can be moved in between the side walls. The rlats - following revers~~:l of tl~e direction of ~,otation of rl~?
<.'.JWV~>~/1.1~7.17 r0~.l.t~rS - C'.,Ti k:E; LE"..i, V1.t.~'iE_' Lll3-1-CJ~~
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AUG-15-00 17:20 1212 972 5487 P.07 R-770 Job-151 18/15/00 .TUE 16:12 FAX 1212 972 5487 COHEN PONTANI ET AL ~ 007 second mat, which is guided through therebeneath, and can be Positioned on said second mat.
The stacking device has a conveying device by means cf which the a~,igz~ed twin mat can be advanced via a raisable and lowerable lifting platform which collects the twin mats_ F:,Iso provided is a rolling-shutter wall which is adjacent to the lifting platform on one side and serves as a stop For tlie:
twin mats, as well as a pusher by means of which, once the rolling-shutter wall has teen opened, the mat stack stacked to the desired height can be pushed onto the pivot table frorn the lifting platform.
The press itself comprises two advancing mechanisms ~~hich are arranged one above the other and tapEr toward one another on the outlet side. The advancing mechanism comprisF:~
1=~ars which are arranged closely one beside the other and o' v,~hich in each case the next but one is connected to a frame,, ~~ith the result that two frames located one inside the other ~.re formed. Provided at the Corners of the Lrames are eccentrics which cause the frames to move eccentrically, the top and the bottom advancing mechanisms operating in opposite;
clirecti.ons, with the result that the mat stack located x~etween the advancing mechaxzi.sms can be moved further in tJ~e conveying direction.
The invention is explained he reimbelow with refere~:c.<~
t.o t? a drawings, in wt~.iclr:
AlIG-15-00 17:20 1212 972 5487 P.08 R-770 Job-151 )8/.1:/00 ~TUE 18:12 FAX 1212 972 5487 COHEN PONTANI ET AL X1008 -s-Figure 1 shows a schematic side view of the installation as a wh.o 1 a , Figures 2a, b, c show the turning device with two views in detail form, Figures 3a, b, c show the press with the following wrapping device with two views in detail form, and Fi4ure 4 shows the stacker_ The zzonwoven mats, once produced and cut to size, azv~
conveyed to a turning device 2 on a conveying device 1.
The turning device is necessary because approximately 50of all the mats arriving have to be positioned one upon the ether in the turned state, i.e. in each case the two top sides come to rest facing one anothex (face to face)_ The mats axriving for turning purposes are guided through 90"
L.pward into the turning device from the conveying path and a.re then reintroduced through 90° into the conveying path from the turning device.
The turning device comprises separating flaps 21, the run-on c.nd run-off wedge 22, p:ivotabl.e inlet and outlet guides 2n, transporting rollers 23 above the x-un--on and run-off wedge c2, the conveying--roller system 25 in the turner, and a mat-c.ligning means ir'i the turning device, and a turner. framework.
The cut mats are positioned first of all on the conveying ~~ath, to 'be precise either as a single mat or_ ds a number of mats im a row one beside the oL.her. once tEoe f;_ws'~ rnat-.
w~achE°s tt,e. ~:~.par~~,.i.rcg i 1,3~ iL, tire -! eadi ~_:~ ~cic~e~
<>~ ;:~}~~ ana hUG-15-00 17:20 1212 972 54BT P.09 R-770 Job-151 8/15/00 TUE 16:12 FAg 1212 972 5487 COHEN PONTANI ET AL f~009 _ 7 _ is raised and conveyed onto the runWon wedge 22. Said mat thus leaves the run-through conveying path. The following ma.t:
slides over the flap 21, which has been lowered again in tl~e interim, and maintains its conveying direction.
The runWon and run-off wedge 22 predetermines the cirection then to be taken. by the mats which are to be turt~ze~3 and/or those which have been turnEd, and serves for guiding a.nd/or bridging purposes into and out of the turning c.evice 2.
The mats pushed by the transporting rollers 23 are guided respectively into and out of the turning device by the inlet ~.nd outlet guides 24. These guidES are configured as ~~ivotable flaps.
'T'he mats pass from the run-on wedge 22 into the turning c:eW ce. The latter receives the mats by means of the roller ~.ystem 27 located at the bottom end and guides them through ~~0° in relation to the conveying direction between two apposite side wa~.7.s 26. The distance between tt~e drive rollers of the roller system 27 is smaller in the top region c~f the side walls, with the result that the mats are elamp~cl in between the opposite rollers. The top row of rollers ma_y x~e pivoted such that the distance between the opposite rollers increases_ Once the mats have .been transported upward betweezz the walls, d mat-aligning mea:z,s 28 - in Lice tozm of a com't~
~ .~ s wwi~.r3 s_rm Jnce t-im mar.- ~~ ~ y~.i rcJ mE:~-._m :za:~ beer swung it:, AUG-15-00 17:20 1212 972 5487 P.10 8-770 Job-151 '8/15/00 TUE 16:12 FAX 1212 972 5487 COHEN PONTANI ET AL ~ 010 t:he top rows of rollers pivot out of the side walls, and the clots drop, by way of their bottom edge, onto the mat-alignin~~
neans, i.e. onto the bars thereof which are located transversely to the side walls, and are thus aligned. ~'he toc~
pair of rollers then pivots in again and retains the mat.
1~'ollowing this alignment, the mat-aligning means mores out of l:he side walls again and releases the turning shaft. F3y :_EVersal of the direction of rotation of the rollers, the mat ~~an then be conveyed out of the turning device, the inlet and ~~utlet guide ~4 having been activated previously, with the result that the outlet onto the run-otf. wedge has been released.
.As a result, the mats are transported downward into the ~on~sreya.ng direction of the through-running mat and - by w'irtue of adapted speed - are positioned precisely leading edge to leading edge.
zn the case of mats which are not turned, the conveying path has a secoxid conveying path positioned above it. A separating flap raises a first mat and brizags in onto the second conveying path. The Lollowing mat moves in ben.~-at~ h the same. The two mats are then positioned one upon the othwr leading edge to leading edge.
Once the "twin mat" has passed the next conveying belt, it reaches a stacker by way of which it is picked up_ The stacker 4 has the convey~.ng device 3. ~a~a conveying device nay compr_~.~,~_~ .r p,:iy c>i comb~, wir.n ;=~ ..ix.ed co;nb arid m ~4UG-15-00 17:20 1212 912 5487 P.11 R-770 Job-151 X8/15/00 TUE 16:13 FAX 1212 972 5487 COHEN PONTANI ET AL 01011 movable comb. The twin mat coming from the turning device 2 basses, by way of the conveying device, onto a rolling-:ahutter support or lifting platform, which serves for :_owering the stack which is formed. There, the mats are set down arid the support, with the mats, moves down by at least double the mat thickness, in order that the following "twin Gnat" can be stacked on the same plane. This operation is then :=epeated until such time as the maximum stack height of ;approximately 1.~ m has been reached.
pnce the rolling-shutter wall, which serves at the ;game time as a stop for the mat stack on one side, has been :raised, r.he nonwoven-mat stack is then pushed by a pusher 5 ~~nto the pivot table 6, which can be rotated through 90°.
If the stack is already located in the removal direction cm1 the rolling shutter, then the table, rather than having tc~ be pivoted through 90°, can remain in the conveying direction.
The nonwoven-mat stack is then pushed into the advancing mechanism of the press 7 by a second pusher. The stack is then drawn in between the advancing mechanisms, by eccentric movement of the same, and gradually pressed together by the advancing mechanisms tapering toward one another.
In this reiinemez~.t, the advancing mechanism compri~~fa a multiplicity of bars which are arranged closely one besidE~
the other and of which each and the next but one in each ca::E:
~re connected to a frame. This prr>dures two -ndividual fr,=imf~:
" a ~v~~r~ ;~r_~ inside the other _ V~.a fn,ir <~c~u~~ie~ eccentrics hUG-15-00 17:20 1212 972 5487 P.12 R-T70 Job-151 X8/15/00 .TUE 18:13 FAX 1212 972 5487 COHEN PONTANI ET AL ~ O1Z
<~rranged at the corners of the frames in each case, the 7:rames are made to move in eccentric circular movements opposed by 180°. The four double eccentrics are driven :synchronously via chain/toothed belts or the like, in such a.
way that the top and bottom advancing mechanisms operate in c7pposite directions_ bocated above arid beneath the advancing mechanism, at °::he end of the press 7 , is iri eaCl7, case one film rol l , the Films of which are welded together in the center by the r_railing-end welding of the previously conveyed stack.
The nonwoven mats which have been pressed together_~
shortly beforehand are pushed into said "film curtain" as they leave the press. Tire film is then positioned longitudinally about the mat stack which is gradually conveyed out of the advancing mechanism.
A wrapping ring ~, which rotates about the nonwoven-mat stack preferably in the counterclockwise direction (as seen in the conveying direction), then begins to wrap said nonwoven-mat stack in an extremely thin stretch film. The degree of overlap of said film is, fox example, 5oa.
Once the entire mat stack has then been enclosed by the Cover film, we7.ding bars (not illustrated) which are located between the end of the press anal ttie wrapping ring are moved toward one another.
As a result, the fi7.m is welded tUCy:Lluer iri two lin<::;
t a dist~n~~e of a:zX>r~woximatWy :L00 mm. Or:e 1 .;u~v t-t~~;r we~d~
~4UG-.15-00 17:20 1212 972 5487 P.13 R-770 Job-151 X8/15/00 .TUE 18:13 FAg 1212 972 5487 COHEN PONTANI ET AL ~ 013 t:he end of this film which has previously been. positioned :.ongitudinally around the mat stack.
'.Che other line welds the two ends of the film again to form a '~' film curtain" .
In the same operat~.on, the film is severed between i=hese two welded 1. i.nes .
The nonwoven-mat stack, pressed and wrapped in fia.m, may then be received by a conveying system which passes =ither, via a push-off means, to the warehouse or directly into the truck-loading zone.
Claims (11)
1. A method of continuously packing nonwoven mats, having a coating on one side, to form nonwoven-mat stacks, characterized by the following steps:
a1) either the cut-to-size nonwoven mats are fed individually, one after the other, to a turning device, in which one of two successive nonwoven mats is turned such that it can be positioned in an oriented manner on the preceding or the following nonwoven mat either by way of its coating or by way of its nonwoven side, or a2) the cut-to-size nonwoven mats are fed individually, one after the other, to an overflow station, in which the respectively first mat of the successive mats is brought into a standby position until the following mat has reached the front edge of the overflow station, and then the first mat is positioned leading edge to leading edge on the second mat moving in beneath it, b) the twin mat formed in this way is fed to a stacking device in which a nonwoven-mat stack is formed from a plurality of such twin mats, the twin mats being positioned one upon the other either by way of their coating or by way of their nonwoven sides, c) the nonwoven-mat stack is then fed to a press, in which the height is reduced section by section as the stack is advanced forward, d) as the stack exits from the press, the stack is progressively enclosed by a cover film which is closed on the end side, and e) a tension film is wrapped around the wrapped stack at intervals, and f) once the entire stack has exited from the press, finally, the cover film is welded at its trailing end.
a1) either the cut-to-size nonwoven mats are fed individually, one after the other, to a turning device, in which one of two successive nonwoven mats is turned such that it can be positioned in an oriented manner on the preceding or the following nonwoven mat either by way of its coating or by way of its nonwoven side, or a2) the cut-to-size nonwoven mats are fed individually, one after the other, to an overflow station, in which the respectively first mat of the successive mats is brought into a standby position until the following mat has reached the front edge of the overflow station, and then the first mat is positioned leading edge to leading edge on the second mat moving in beneath it, b) the twin mat formed in this way is fed to a stacking device in which a nonwoven-mat stack is formed from a plurality of such twin mats, the twin mats being positioned one upon the other either by way of their coating or by way of their nonwoven sides, c) the nonwoven-mat stack is then fed to a press, in which the height is reduced section by section as the stack is advanced forward, d) as the stack exits from the press, the stack is progressively enclosed by a cover film which is closed on the end side, and e) a tension film is wrapped around the wrapped stack at intervals, and f) once the entire stack has exited from the press, finally, the cover film is welded at its trailing end.
2. The method as claimed in claim 1, wherein the tension film is a thin stretch film.
3. The method as claimed in claims 1 and 2, wherein the degree of overlap of the tension film in relation to the surface area of the cover film is, for example, 50%
4. A device for continuously packing nonwoven mats for the purpose of implementing the method as claimed in claims 1-3, which comprises a) a conveying device (1) for continuously supplying the cut-to-size nonwoven mats and for feeding the same to a b1) turning device (2) for forming twin mats comprising two nonwoven mats located one upon the other, or b2) an overflow station for forming twin mats comprising two nonwoven mats located one upon the other, c) a conveying device (3) for feeding the twin mats to a d) stacking device (4), e) a conveying device (6) for feeding the stacked nonwoven mats to a f) press (7) which has an advancing mechanism, of which the top and bottom advancing mechanisms form the pressing plates which taper toward one another in the direction of movement of the stack, with the result that the nonwoven-mat stack can be pressed step-by-step to its smallest height, and g) a cover-film feed (8) at the exit of the press (7), and a h) wrapping device (9) for wrapping the nonwoven-mat stack, which slides onto a support and is enclosed by the cover film, in a tension film.
5. The device as claimed in claim 4, wherein the wrapping device (9) comprises a wrapping zing which encloses the nonwoven-mat stack and can be made to circulate.
6. The device as claimed in claim 4, wherein the conveying device (3), which is arranged upstream of the stacking device (4), is a pair of interengaging combs comprising a stationary comb and a movable comb.
7. The device as claimed in claim 4, wherein the conveying device (6) which is arranged between the stacking device (4) and the press (7) is designed as a turntable.
8. The device as claimed in one of the preceding claims, wherein the conveying devices, which are designed as conveying belts, are divided up into individual conveying-belt sections.
9. The device as claimed in claim 4, wherein, on the inlet side, the turning device (2) has a separating flap (21) and transporting rollers (23) which feed the mats to a run-on and run-off wedge (22), wherein the mats which are directed vertically upward by the run-on wedge can be guided between two vertical side walls (26) by means of conveying rollers (25), wherein a mat-aligning means (28) can be moved in between the side walls, and wherein the mats - following reversal of the direction of rotation of the conveying rollers - can be fed, via the run-off wedge (22), to the second mat, which is guided through therebeneath, and can be positioned on said second mat.
10. The device as claimed in claim 4, wherein the press (7) comprises two advancing mechanisms which are arranged one above the other and taper toward one another on the outlet side, wherein the advancing mechanism comprises bars which are arranged closely one beside the other and of which in each case the next but one is connected to a frame, with the result that two frames located one inside the other are formed, and wherein provided at the corners of the frames are eccentrics which cause the frames to move eccentrically, the top and the bottom advancing mechanisms operating in opposite directions, with the result that the mat stack located between the advancing mechanisms can be moved further in the conveying direction.
11. The device as claimed in claim 4, wherein the stacking device (4) has a conveying device (3) by means of which the aligned twin mat can be advanced via a raisable and lowerable lifting platform which collects the twin mats, and wherein there is also provided a rolling-shutter wall which is adjacent to the lifting platform on one side and serves as a stop for the twin mats, as well as a pusher (5) by means of which, once the rolling-shutter wall has been opened, the mat stack stacked to the desired height can be pushed onto the pivot table (6) from the lifting platform.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19807780 | 1998-02-18 | ||
| DE19807780.7 | 1998-02-18 | ||
| DE19823672.7 | 1998-05-20 | ||
| DE19823672 | 1998-05-20 | ||
| DE19833795.7 | 1998-07-21 | ||
| DE19833795A DE19833795C2 (en) | 1998-02-18 | 1998-07-21 | Process and device for the continuous packaging of nonwoven mats |
| PCT/DE1999/000506 WO1999042371A1 (en) | 1998-02-18 | 1999-02-18 | Method and device for the continuous packing of glass mats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2321471A1 true CA2321471A1 (en) | 1999-08-26 |
Family
ID=27218164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002321471A Abandoned CA2321471A1 (en) | 1998-02-18 | 1999-02-18 | Method of, and device for, continuously packing nonwoven-mats |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1056648A1 (en) |
| CA (1) | CA2321471A1 (en) |
| WO (1) | WO1999042371A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1378236A (en) * | 1963-10-03 | 1964-11-13 | Saint Gobain | Method and device for packaging products in the form of plates or panels made of elastic material |
| DK128526C (en) * | 1972-05-08 | 1983-02-28 | P Suhr | APPARATUS FOR PACKAGING OF COMPRESSABLE GOODS |
| JPS5326308Y2 (en) * | 1974-08-29 | 1978-07-04 | ||
| US4711067A (en) * | 1984-02-03 | 1987-12-08 | Giuliano Magni | Method of packaging a single mattress to a small size to be conveniently carried |
-
1999
- 1999-02-18 CA CA002321471A patent/CA2321471A1/en not_active Abandoned
- 1999-02-18 EP EP99913088A patent/EP1056648A1/en not_active Withdrawn
- 1999-02-18 WO PCT/DE1999/000506 patent/WO1999042371A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999042371A1 (en) | 1999-08-26 |
| EP1056648A1 (en) | 2000-12-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |