CA2118700C - Width adjusting machine for reel cutters - Google Patents
Width adjusting machine for reel cuttersInfo
- Publication number
- CA2118700C CA2118700C CA002118700A CA2118700A CA2118700C CA 2118700 C CA2118700 C CA 2118700C CA 002118700 A CA002118700 A CA 002118700A CA 2118700 A CA2118700 A CA 2118700A CA 2118700 C CA2118700 C CA 2118700C
- Authority
- CA
- Canada
- Prior art keywords
- web
- webs
- traveling
- particulate matter
- adjusting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
- B26D7/1845—Means for removing cut-out material or waste by non mechanical means
- B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/53—Auxiliary process performed during handling process for acting on performance of handling machine
- B65H2301/531—Cleaning parts of handling machine
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Treatment Of Fiber Materials (AREA)
- Accessories And Tools For Shearing Machines (AREA)
- Feeding Of Workpieces (AREA)
- Cleaning In General (AREA)
- Paper (AREA)
- Nonmetal Cutting Devices (AREA)
- Winding Of Webs (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Details Of Cutting Devices (AREA)
Abstract
Description
WO 93/06035 ' PCI'/US92/07S83 ( 1 ) 2 ~ 1 3 7 ~ O
T5TLE: WIDTH ADJUSTING MACHINE FOR REEL CUTTERS
Background of the Invention Field of the Inv~ntion The inYention concerns a width adlusting machine for reel cutters with at least two web g~lide rollers. M~re particularly, 1:his invention relates to a compact apparatus for spreading a traveling fibrous web, such as a sheet of paper, which has been cu~ in the dir~ction of web travel, such that the cut web portions are spread laterally of their direction of travel, and for collecting~ and discharging the dust particies produced while maintaini~ng a predetermined gap distance~between the cut web portions.
D~scri~tion of the Prior Art P~eel cutters separate a material web that is unwound from~ a roller, having an~elongated~axial~ ponion in;the~longitudinal direction~(web advance direction?~into severai~partial; (i~e.~narrower slit web~portions)~
webs which are~subsequently~wound up again. During this~process, i~is verv important ~o~guide the partial webs~exactly parallel to each~othe~r ;and to avoid mutual defects ~n the cut edges of adjacent parti~l w~bsO
Width adjus~irig~ machines with two web guide rollers are increasingly utilized ~for this~purpose, whereby the first rol~ler, vi~wed in the web advance d~irectlo~n, has a spherical~shape (i.e. profile) in~the area ~of~the~
partial,~ or~circumferentiallv~extending,~surface on either side~of which the materia! web is wound, which~ shape is preferably obtained by a " .' ' ''-,t ~, ~ ', :
: ~ ' .. ,j,'' ~.
~n ~C\i. ~'0~ ');3 ~ ~>'> ~ 7()1~ t~) ~1'3 '):33~ ;5 ~
T5TLE: WIDTH ADJUSTING MACHINE FOR REEL CUTTERS
Background of the Invention Field of the Inv~ntion The inYention concerns a width adlusting machine for reel cutters with at least two web g~lide rollers. M~re particularly, 1:his invention relates to a compact apparatus for spreading a traveling fibrous web, such as a sheet of paper, which has been cu~ in the dir~ction of web travel, such that the cut web portions are spread laterally of their direction of travel, and for collecting~ and discharging the dust particies produced while maintaini~ng a predetermined gap distance~between the cut web portions.
D~scri~tion of the Prior Art P~eel cutters separate a material web that is unwound from~ a roller, having an~elongated~axial~ ponion in;the~longitudinal direction~(web advance direction?~into severai~partial; (i~e.~narrower slit web~portions)~
webs which are~subsequently~wound up again. During this~process, i~is verv important ~o~guide the partial webs~exactly parallel to each~othe~r ;and to avoid mutual defects ~n the cut edges of adjacent parti~l w~bsO
Width adjus~irig~ machines with two web guide rollers are increasingly utilized ~for this~purpose, whereby the first rol~ler, vi~wed in the web advance d~irectlo~n, has a spherical~shape (i.e. profile) in~the area ~of~the~
partial,~ or~circumferentiallv~extending,~surface on either side~of which the materia! web is wound, which~ shape is preferably obtained by a " .' ' ''-,t ~, ~ ', :
: ~ ' .. ,j,'' ~.
~n ~C\i. ~'0~ ');3 ~ ~>'> ~ 7()1~ t~) ~1'3 '):33~ ;5 ~
2 ~ 7 -D O
WO 93/0~035 ~!IA) PCT/US92/07583 corresponding bendin~ of the axis of this web 0uide roller. This first we~
guide roller expands the entire w~b material widthwise, whereby adjacent partial v~lebs di~erge in the ara~ of the cut edg~s, so that they ar~ nQ l~nger parallel. ~n order to pro~ri~ ~ possibili~y for an 0xact subsequent winding of the partial webs, howev0r, these webs must bo guided parallel to each oth~r. A seeond web ~uid~ roller which becomes effe~tive within ~ certain dist~nc~ fro~n the first w~b ~uide roller, pr~ rably, a ~ew hundred mn), and ~ whose partial sur~ac~ around which the w~b ma~erial is wound is con~t~ucted with its sur~ce profile opposite to th~ ~pherical or convex shape of the first web ~uide roller, that is, In a concave shape. Th~ D
individlJ~I pa~tial webs, which by r.~w h~ve a certain laterai distan~e betwe~n each ~>ther, ~re ~uid~d ~ck in a parallel direction whi;e main~ainin~ th~ir separation. Such a width adjustin~ mach~n~ thu~ has a ..
substantial space raquire~nent between the .,utting:st~tion and the windin~
station.of th~ r~el ~utting ma~hin~.
~ .
Above and beyond ~hese requirements, r~l cutters ~Isually necessitat~ the rem~val of di~st andlor possibl~ resi~ue produced durin~ the longitudinal cutt,n~, or slittin~, process and deposited on the material web.
These gener~lly ~nown ~ust removal systsms thus ai~o have a ~ubst~ntial r gp~Ge requirement which, as :mention~d above, even ~u~ther exacerbates the problems of all-too-sonfined sp~ce condit,ens.
in European Patent Appli~ation N~. 0 431 275 A2, ~pp~ratus is diselosed for s~reading the rel~tively na~row, component we~ strips .
produçed~ when a travelin~, relatiY~ly wide web is slit lorl~itudinally into a plur~lity ~f such strips. The plurality of traveling, relatively narrow, web strips aru first spread by a first, bowed, rotatin~ r~ll, and are ~hen ~uided ~ack into parallel, co-traveling array by bein~ pass~d over a second, bowed, ro~ating roli. The apparatu~ i~ provlded with a regulation me~hanisn~ which ..: .
SUBS~ E SHEET
7 ~ ~
WO 93/06~:~5 ~2~B) PCTIUS92107583 is fitted to ccrrect the directiona3 angles between the bowed rolls such tha~
the ~irectional angles between the bowed r~lls are adjusted to the desired values. This apparatus neither collects dust from the web-slitting process, n~r does it provide a means for coll~cting such dust operatin~ in conjunction with th~ we~ preading l~owPd rolls.
Summary ~f th~ In~entio~
Startin!3 from these facts~, the invention is bas~d on the objective t~
arran~e ~ ~u~t remov~l systRm, as well ~s ~ dual ex,~ander roller arrana~ment in a ree3 cutting machin~ within the confined sp~e between the cuttin~ s~stion ~nd ~he w~nd~n~ station~ It is further desir~d to cr~ate : , .
,, ' ' .
':
.
' SU BSTIT lJTE: 5H E~ T
WO 93/06035 2 ~ 7 ii~ O P~/U~92/07~83 (3) th~ insertion of the partial webs into the machine c~mponen~s arranged a~er the cutting station in as uncomplicated a manner as possible.
The aforementioned objective is attained by a width adjusting machine for reel cu~ters that is constructed by passing th~ traveling web successively over a convexly b~wed web-spreading roller and conca~rely bowed roller to maintain the slit web portions spaced apart. Intermediat~
these firs~ and second rollers is a dust collector which comprises a pair of sp~ce~ vacuum plates which are positioned on either side of tho web.
Th~ essentially plane plates with suction openings utilized according ~o the invention can with the concept of the invenl:ion be realized by different means, similar to the shape and arran3ement of the suction openings; however, it must be ensur~d that a sufficiently s~rong and evenly dist~ibuted suctTon air flow can be realized with simultaneously sufficient mech~nical stability, such that the unwanted impurities deposited on th~ traveling web will be remov~d and discharged through the suction openings. The plates can be provided with slots, bores or similar structures lfor this purpose, or they can consist of an intersecting or non-in~ersec~ing screen s$ructure with screening spaces.
The inven~ion has the advantage of providing high efficiency with regard to the dust removal with the smallest structural dimensions, and, furthermore, it simpiifies the insertion process of the web ends.
The production o~ the suGtion ait flow and its dischar~e, including , ~he dischal~é of the removed particles, can be realized by most different means, for ex~mple, by flexible or rigid pipes that exit at the suction openings. Particularly preferred is a construction where the plate with the suction openings is part of one hollow body that extends over the width of the material web (machlne width). This arrangement is not only .
WO 93/06035 P~/US92/07583 7 s~ D (4) uncomplicated with regard to structural considerations, but it can also b~
constructed very effectively with regard to the flow technology. Such an arrangement has a particularly small space requirement and is particularly effective with regard to mechanical considerations if both hollow bodies are part of a support arrangement for the web guid~ rollers of the width adjusting apparatus arranged ~o both sides of the p!ate since this manner of construction makes it possible to omit the otherwise necessary torsion rods or sirnilar structural elements arranged lateral to the materiai web.
In this particular instance, both hollow bodies are provided with the plates which are preferably rigidlv conn~cted at their front ends with one bracket for each of ~he two web; guide rollers that are arranged to both sides of the plates, whereby both hollow bodies and both brackets together form the support arrangemen~. This makes i~ possible to install or remove the width adjusting machine, together with ~he suction deviee, from th~ reel cuttîng rnachine as a compact, in particular, p~efabricated, possibly even modular, structural unit (group of structural components), or it can, if so desired, be subsequently installed in the most simple manner. The structure of the support arrangement designated as "brackets" can be realized by most different means, whereby the most important factor is not a narrowly defined braeket-like structure, but str~lctural elements, or a structural group comprised of several structural elements provided on each of the front ends, can serve as a receptacle for the bearings of the web guide rollers and can also b~ rigidly conneeted with the hollow bodies extending over the width of the machine.
The arrangement according to the invention is particularly advantageous when the support arrangemen~ of both web guide rollers is swiveled about an axls that extends parallel to the rotation~l axis of the guid~ rollers. In this particular ~nstance, the dust removal plates also W~93/0603~ 2 ~ 1 ~70 ~ P~r/US92/075~3 (5) swivel wi~hout altering the web advance geometry in the area o~ the gap formed between the two plates. This generally known ability to swing horizon~ally of both web guide rollers of the width adjusting machine alters the winding angie of the material web around the web guide rollers and thus leads to an alteration of their efficiency. Such alterations are, for example, required during a change of the number and/or the width of the partial webs of the materiai we~.
Practical ~xamples of the object of the invention, which in particular ensure good guidance and insertabili~y of the partial webs, are recited in, and are apparent from, ~he claims.
The aforementioned structural componen~s to be utilized according to the invention, as w~ll as the ones claimed and described in the examples, are not subject to any particuiar exceptions with regard to their size, shape, material selection and technical concept, so that the selec~ive criteria known in ~he corresponding application area can be applied without limitations.
Further details, characteristics and advantages of ths object of the invention result from the following description of the preferred embodimen~ in conj-Jnction with the corresponding drawing which shows a preferred example of a width adjusting maehine according to the inventicn. The drawing shows a schematic representa~ion of the width adjusting machine according to the invention in a sectiona! view in which the cutting-p!ane lies parallel to the web advance direction and perpendicular to the web guide rollers.
, :
The width adjusting machine with dust removal system according to the invention can basically also be advantageously applied vvith W0 93/06035 2 ~ (6) PCI/USg2~07~83 mat~rial webs that are not or not yet divided in the longitudinal direction.
It is basically possible to separate the most different web materials with the object of the invention, in particul~r, paper and cardboard materials, but also fibrous materials or foils consisting of metal, plastic or similar materials, or even multi-layered materials.
Brief Descri~tion of the Drawinq Figur2 1 is a side-eleYational view of this invention, in somewhat schematic form, showing the bowed first and sccond web guide rollers rotatably mounted on either side of the dust collecting apparatus.
DescriPtion of the Preferred Embodiment In the figure, the path of ~he material web 11 through a wid~h adjusting machine 10 is illustrated by the broken line ~long and short dashes), and the we~ advance direction is indicated by the arrows 12.
Viewed in the web advance direction, the material web 11 is at first wound around a first web guide ~oller 13: by a small angle of approximately 40~ and subsequently in reverse winding direction around : a second web guide~ roller 14, whereby a linear web portion with a length of a few dm, for exarnple, 5 dm, is located between the two web guide rollers. The surface profile Qf the part of the web guîde roller 13 ~: around which the ~material web 11 is wound is convex, when :~/iewed in the direction of web travel, while the- corresponding portion of the web I . i , I . ~ .
guide roller,1~ surface profile is sha,~ed in a concave manner. In the ~' preferred example shown in the figures, this shape is obtained by a corresponding bending of both web guide rollers (see, for example, DE
AS 22 01 8~4).
wo g3/06035 2 1 ~i ~ 7 ~ 0 PCr/US92/07583 (7) Pillow blocks 15A or 15B for support of the web guide rollers 13 and 14 are provided on the corresponding front ends of the web guide roilers 13 and 14. These pillow blocks are, in turn, connected, in particular, scrswed, to the retaining p~ate 16, so that the pillow blocks 15A and 15B on each side of the appara~us, together with the retaining plate 16 between the correspnnding pillow blocks, represent a shar~d bracket 17 for bo~h web guide rollers '13 and 14 that is supported in such a rnanner so as to swivel with regard ~o a machine frame, no~
illustra~ed, about a swivel point 18 provided on each of the opposing retaining plates 16. The swivel axis extending ~hrough both opposing swivel points 18 in~ersects the material web 11 in the plane of the web and at a right angle to its direction of travel approximately in the center of the web portion between the two web guide rollers 13 and 14.
The brackets 17, which are supported in such a way so as to swivel with r~spect to both sides of the m~terial web 11, are conrlected with each other in the area of the retaining plate 16 by two hoilow, elongated profile bodi~s 19 and 20 that are welded or at~ached in a m~nner similar as their front ends in such a way ~hat two su~tion ohambers 21 and 22 are createdthat can be connected to a vacuum source with a dustcollector,forexampie,a cyclone,by atleastone perforation 23 and 24 arranged in the retaining plate 116) and one dus~
removal pipe 25,26. In ~order to provide a better adaptability to the loca~
space oonditions, the dust removal pipes 25 and 26 extend approximately in a right angle or any other suitable angle to the profile bodies 19 aF~d 20, whereby a swivel connection between the retaining pla~e 16 andthe dustremovalpipes 25 and ~6 ensures a further possibility for ada~tation to the local space conditions (swivel direotion arrows A and B).
Wo 93/0603S Pcr/us92lo7s~3 21~ 7~13 (8) On the sides that face the material web 11, the profile bodies 19 and 20 are provided with laterai surfaces 19Q and 20A which are constructed as perforated plates, in the example of the embodiment shown, and representin~, in a general s~nse, planar plates provided with suction openings 27, whereby these plates extend over the entire width of the material web and a certain portion olF the path of the material web 11 in the web advance direction ànd are arran~ed parallel to the ma~erial web 11. The flow arrows G indicate the direction in which the suction air and the dust particles contained therein flow inwardly throu~h the suction openinys 27 of the plates ~lateral surfa~es 19A, 20A).
The fact that the brackets 17 and the profile bodies 19 and 20 form a unified carrier arrangement for the web guide rollers 13 and 14 ensures that the relative position between the material web 1~ and the lateral wall surfaces 19A and 20A of the profile bodies 19 and 20 is not changed, even if this carrier arrangement is swiveled about the swivel point 18.
Pressure chambers 29 and 30 that are integrated with the profile bodies 19 and 20 in ~he form of pipes 31,32 and that extend over the ) width of the machine are provided, whereby these pipes have nozzles 28 to both sides of the distance gap D between the lateral wall surfaoes 19A
and 20A throu~h which the material web 11 can be supplied with a hydrauiic fluid. This hydraulic fluid guides the material w~b as well as removes lightl~ adhering dust particles.
.. ..
In the exarnple shown in the figure, the pipe 32 can b~ swiveled about its longitudinal axis, so that the direction of action of the nozzles can be optimized for this application purpose. A guide surface 33 is provided on the profile bodies 20 as a further insertion aid.
..
WO 93/06035 ~ 1 ~. 8 7 ~ Pcr/us92/o7583 (9) The preferred example illustrated in the figures thus rnakes it possible that ~he distance between the surfaces of the dust r~moval sys~em and the material web remains constant, independent of the swivel position of the web guide rollers 13 and 14. Both lateral surfaces of the web material are cleaned simultaneously. The la~eral surfaces 19A and 20A in conneetion with ~he nozzles 28 simplify the automated insertion of the material web into the width adjusting machine. The profile bodies 19 and 20 serve simultaneously as a vacuurn chamber and as a part of the carrier arrangement of the web guide rollers 13 and 14, so that other conventional structural elements usually utilized for this purpose can be omitted.
Th~ suction device according to the invention can basically also be-combined with other cylinders or rollers of a reel cutting machine in an advantageous manner, as will be apparent to one skilled in the art, without departing frorn the principles of the invention.
;
,.
., ' , ,' . . ,, ~ ;,
WO 93/0~035 ~!IA) PCT/US92/07583 corresponding bendin~ of the axis of this web 0uide roller. This first we~
guide roller expands the entire w~b material widthwise, whereby adjacent partial v~lebs di~erge in the ara~ of the cut edg~s, so that they ar~ nQ l~nger parallel. ~n order to pro~ri~ ~ possibili~y for an 0xact subsequent winding of the partial webs, howev0r, these webs must bo guided parallel to each oth~r. A seeond web ~uid~ roller which becomes effe~tive within ~ certain dist~nc~ fro~n the first w~b ~uide roller, pr~ rably, a ~ew hundred mn), and ~ whose partial sur~ac~ around which the w~b ma~erial is wound is con~t~ucted with its sur~ce profile opposite to th~ ~pherical or convex shape of the first web ~uide roller, that is, In a concave shape. Th~ D
individlJ~I pa~tial webs, which by r.~w h~ve a certain laterai distan~e betwe~n each ~>ther, ~re ~uid~d ~ck in a parallel direction whi;e main~ainin~ th~ir separation. Such a width adjustin~ mach~n~ thu~ has a ..
substantial space raquire~nent between the .,utting:st~tion and the windin~
station.of th~ r~el ~utting ma~hin~.
~ .
Above and beyond ~hese requirements, r~l cutters ~Isually necessitat~ the rem~val of di~st andlor possibl~ resi~ue produced durin~ the longitudinal cutt,n~, or slittin~, process and deposited on the material web.
These gener~lly ~nown ~ust removal systsms thus ai~o have a ~ubst~ntial r gp~Ge requirement which, as :mention~d above, even ~u~ther exacerbates the problems of all-too-sonfined sp~ce condit,ens.
in European Patent Appli~ation N~. 0 431 275 A2, ~pp~ratus is diselosed for s~reading the rel~tively na~row, component we~ strips .
produçed~ when a travelin~, relatiY~ly wide web is slit lorl~itudinally into a plur~lity ~f such strips. The plurality of traveling, relatively narrow, web strips aru first spread by a first, bowed, rotatin~ r~ll, and are ~hen ~uided ~ack into parallel, co-traveling array by bein~ pass~d over a second, bowed, ro~ating roli. The apparatu~ i~ provlded with a regulation me~hanisn~ which ..: .
SUBS~ E SHEET
7 ~ ~
WO 93/06~:~5 ~2~B) PCTIUS92107583 is fitted to ccrrect the directiona3 angles between the bowed rolls such tha~
the ~irectional angles between the bowed r~lls are adjusted to the desired values. This apparatus neither collects dust from the web-slitting process, n~r does it provide a means for coll~cting such dust operatin~ in conjunction with th~ we~ preading l~owPd rolls.
Summary ~f th~ In~entio~
Startin!3 from these facts~, the invention is bas~d on the objective t~
arran~e ~ ~u~t remov~l systRm, as well ~s ~ dual ex,~ander roller arrana~ment in a ree3 cutting machin~ within the confined sp~e between the cuttin~ s~stion ~nd ~he w~nd~n~ station~ It is further desir~d to cr~ate : , .
,, ' ' .
':
.
' SU BSTIT lJTE: 5H E~ T
WO 93/06035 2 ~ 7 ii~ O P~/U~92/07~83 (3) th~ insertion of the partial webs into the machine c~mponen~s arranged a~er the cutting station in as uncomplicated a manner as possible.
The aforementioned objective is attained by a width adjusting machine for reel cu~ters that is constructed by passing th~ traveling web successively over a convexly b~wed web-spreading roller and conca~rely bowed roller to maintain the slit web portions spaced apart. Intermediat~
these firs~ and second rollers is a dust collector which comprises a pair of sp~ce~ vacuum plates which are positioned on either side of tho web.
Th~ essentially plane plates with suction openings utilized according ~o the invention can with the concept of the invenl:ion be realized by different means, similar to the shape and arran3ement of the suction openings; however, it must be ensur~d that a sufficiently s~rong and evenly dist~ibuted suctTon air flow can be realized with simultaneously sufficient mech~nical stability, such that the unwanted impurities deposited on th~ traveling web will be remov~d and discharged through the suction openings. The plates can be provided with slots, bores or similar structures lfor this purpose, or they can consist of an intersecting or non-in~ersec~ing screen s$ructure with screening spaces.
The inven~ion has the advantage of providing high efficiency with regard to the dust removal with the smallest structural dimensions, and, furthermore, it simpiifies the insertion process of the web ends.
The production o~ the suGtion ait flow and its dischar~e, including , ~he dischal~é of the removed particles, can be realized by most different means, for ex~mple, by flexible or rigid pipes that exit at the suction openings. Particularly preferred is a construction where the plate with the suction openings is part of one hollow body that extends over the width of the material web (machlne width). This arrangement is not only .
WO 93/06035 P~/US92/07583 7 s~ D (4) uncomplicated with regard to structural considerations, but it can also b~
constructed very effectively with regard to the flow technology. Such an arrangement has a particularly small space requirement and is particularly effective with regard to mechanical considerations if both hollow bodies are part of a support arrangement for the web guid~ rollers of the width adjusting apparatus arranged ~o both sides of the p!ate since this manner of construction makes it possible to omit the otherwise necessary torsion rods or sirnilar structural elements arranged lateral to the materiai web.
In this particular instance, both hollow bodies are provided with the plates which are preferably rigidlv conn~cted at their front ends with one bracket for each of ~he two web; guide rollers that are arranged to both sides of the plates, whereby both hollow bodies and both brackets together form the support arrangemen~. This makes i~ possible to install or remove the width adjusting machine, together with ~he suction deviee, from th~ reel cuttîng rnachine as a compact, in particular, p~efabricated, possibly even modular, structural unit (group of structural components), or it can, if so desired, be subsequently installed in the most simple manner. The structure of the support arrangement designated as "brackets" can be realized by most different means, whereby the most important factor is not a narrowly defined braeket-like structure, but str~lctural elements, or a structural group comprised of several structural elements provided on each of the front ends, can serve as a receptacle for the bearings of the web guide rollers and can also b~ rigidly conneeted with the hollow bodies extending over the width of the machine.
The arrangement according to the invention is particularly advantageous when the support arrangemen~ of both web guide rollers is swiveled about an axls that extends parallel to the rotation~l axis of the guid~ rollers. In this particular ~nstance, the dust removal plates also W~93/0603~ 2 ~ 1 ~70 ~ P~r/US92/075~3 (5) swivel wi~hout altering the web advance geometry in the area o~ the gap formed between the two plates. This generally known ability to swing horizon~ally of both web guide rollers of the width adjusting machine alters the winding angie of the material web around the web guide rollers and thus leads to an alteration of their efficiency. Such alterations are, for example, required during a change of the number and/or the width of the partial webs of the materiai we~.
Practical ~xamples of the object of the invention, which in particular ensure good guidance and insertabili~y of the partial webs, are recited in, and are apparent from, ~he claims.
The aforementioned structural componen~s to be utilized according to the invention, as w~ll as the ones claimed and described in the examples, are not subject to any particuiar exceptions with regard to their size, shape, material selection and technical concept, so that the selec~ive criteria known in ~he corresponding application area can be applied without limitations.
Further details, characteristics and advantages of ths object of the invention result from the following description of the preferred embodimen~ in conj-Jnction with the corresponding drawing which shows a preferred example of a width adjusting maehine according to the inventicn. The drawing shows a schematic representa~ion of the width adjusting machine according to the invention in a sectiona! view in which the cutting-p!ane lies parallel to the web advance direction and perpendicular to the web guide rollers.
, :
The width adjusting machine with dust removal system according to the invention can basically also be advantageously applied vvith W0 93/06035 2 ~ (6) PCI/USg2~07~83 mat~rial webs that are not or not yet divided in the longitudinal direction.
It is basically possible to separate the most different web materials with the object of the invention, in particul~r, paper and cardboard materials, but also fibrous materials or foils consisting of metal, plastic or similar materials, or even multi-layered materials.
Brief Descri~tion of the Drawinq Figur2 1 is a side-eleYational view of this invention, in somewhat schematic form, showing the bowed first and sccond web guide rollers rotatably mounted on either side of the dust collecting apparatus.
DescriPtion of the Preferred Embodiment In the figure, the path of ~he material web 11 through a wid~h adjusting machine 10 is illustrated by the broken line ~long and short dashes), and the we~ advance direction is indicated by the arrows 12.
Viewed in the web advance direction, the material web 11 is at first wound around a first web guide ~oller 13: by a small angle of approximately 40~ and subsequently in reverse winding direction around : a second web guide~ roller 14, whereby a linear web portion with a length of a few dm, for exarnple, 5 dm, is located between the two web guide rollers. The surface profile Qf the part of the web guîde roller 13 ~: around which the ~material web 11 is wound is convex, when :~/iewed in the direction of web travel, while the- corresponding portion of the web I . i , I . ~ .
guide roller,1~ surface profile is sha,~ed in a concave manner. In the ~' preferred example shown in the figures, this shape is obtained by a corresponding bending of both web guide rollers (see, for example, DE
AS 22 01 8~4).
wo g3/06035 2 1 ~i ~ 7 ~ 0 PCr/US92/07583 (7) Pillow blocks 15A or 15B for support of the web guide rollers 13 and 14 are provided on the corresponding front ends of the web guide roilers 13 and 14. These pillow blocks are, in turn, connected, in particular, scrswed, to the retaining p~ate 16, so that the pillow blocks 15A and 15B on each side of the appara~us, together with the retaining plate 16 between the correspnnding pillow blocks, represent a shar~d bracket 17 for bo~h web guide rollers '13 and 14 that is supported in such a rnanner so as to swivel with regard ~o a machine frame, no~
illustra~ed, about a swivel point 18 provided on each of the opposing retaining plates 16. The swivel axis extending ~hrough both opposing swivel points 18 in~ersects the material web 11 in the plane of the web and at a right angle to its direction of travel approximately in the center of the web portion between the two web guide rollers 13 and 14.
The brackets 17, which are supported in such a way so as to swivel with r~spect to both sides of the m~terial web 11, are conrlected with each other in the area of the retaining plate 16 by two hoilow, elongated profile bodi~s 19 and 20 that are welded or at~ached in a m~nner similar as their front ends in such a way ~hat two su~tion ohambers 21 and 22 are createdthat can be connected to a vacuum source with a dustcollector,forexampie,a cyclone,by atleastone perforation 23 and 24 arranged in the retaining plate 116) and one dus~
removal pipe 25,26. In ~order to provide a better adaptability to the loca~
space oonditions, the dust removal pipes 25 and 26 extend approximately in a right angle or any other suitable angle to the profile bodies 19 aF~d 20, whereby a swivel connection between the retaining pla~e 16 andthe dustremovalpipes 25 and ~6 ensures a further possibility for ada~tation to the local space conditions (swivel direotion arrows A and B).
Wo 93/0603S Pcr/us92lo7s~3 21~ 7~13 (8) On the sides that face the material web 11, the profile bodies 19 and 20 are provided with laterai surfaces 19Q and 20A which are constructed as perforated plates, in the example of the embodiment shown, and representin~, in a general s~nse, planar plates provided with suction openings 27, whereby these plates extend over the entire width of the material web and a certain portion olF the path of the material web 11 in the web advance direction ànd are arran~ed parallel to the ma~erial web 11. The flow arrows G indicate the direction in which the suction air and the dust particles contained therein flow inwardly throu~h the suction openinys 27 of the plates ~lateral surfa~es 19A, 20A).
The fact that the brackets 17 and the profile bodies 19 and 20 form a unified carrier arrangement for the web guide rollers 13 and 14 ensures that the relative position between the material web 1~ and the lateral wall surfaces 19A and 20A of the profile bodies 19 and 20 is not changed, even if this carrier arrangement is swiveled about the swivel point 18.
Pressure chambers 29 and 30 that are integrated with the profile bodies 19 and 20 in ~he form of pipes 31,32 and that extend over the ) width of the machine are provided, whereby these pipes have nozzles 28 to both sides of the distance gap D between the lateral wall surfaoes 19A
and 20A throu~h which the material web 11 can be supplied with a hydrauiic fluid. This hydraulic fluid guides the material w~b as well as removes lightl~ adhering dust particles.
.. ..
In the exarnple shown in the figure, the pipe 32 can b~ swiveled about its longitudinal axis, so that the direction of action of the nozzles can be optimized for this application purpose. A guide surface 33 is provided on the profile bodies 20 as a further insertion aid.
..
WO 93/06035 ~ 1 ~. 8 7 ~ Pcr/us92/o7583 (9) The preferred example illustrated in the figures thus rnakes it possible that ~he distance between the surfaces of the dust r~moval sys~em and the material web remains constant, independent of the swivel position of the web guide rollers 13 and 14. Both lateral surfaces of the web material are cleaned simultaneously. The la~eral surfaces 19A and 20A in conneetion with ~he nozzles 28 simplify the automated insertion of the material web into the width adjusting machine. The profile bodies 19 and 20 serve simultaneously as a vacuurn chamber and as a part of the carrier arrangement of the web guide rollers 13 and 14, so that other conventional structural elements usually utilized for this purpose can be omitted.
Th~ suction device according to the invention can basically also be-combined with other cylinders or rollers of a reel cutting machine in an advantageous manner, as will be apparent to one skilled in the art, without departing frorn the principles of the invention.
;
,.
., ' , ,' . . ,, ~ ;,
Claims (9)
1. Apparatus for adjusting the relative lateral positions of a plurality of co-traveling cut webs (11), and removing particulate matter therefrom, the apparatus including at least two web guide rollers (13,14), characterized in that:
the apparatus includes a pair of opposed, parallel plates (19A,20A), each of which is provided with a plurality of openings (27) therethrough, the plates arranged with the openings adjacent a portion of the web path of travel on either side of the web, for receiving particulate matter through the openings from the surfaces of the traveling webs, and disposed intermediate the two web guide rollers (13,14);
the web guide rollers (13,14) are arranged one behind the other in the direction of web travel (12) for adjusting and maintaining the lateral positions of the cut webs relative to one another;
the apparatus includes two hollow profile bodies (19,20), each profile body disposed about a corresponding plate on either side of the traveling webs in substantially opposed array, the profile bodies for maintaining sub-atmospheric air pressure therewithin to urge particular matter from the webs and through the plate openings into the profile bodies;
the two hollow profile bodies are structurally linked in a carrier arrangement on which the at least two web guide rollers (13,14) are mounted.
(11)
the apparatus includes a pair of opposed, parallel plates (19A,20A), each of which is provided with a plurality of openings (27) therethrough, the plates arranged with the openings adjacent a portion of the web path of travel on either side of the web, for receiving particulate matter through the openings from the surfaces of the traveling webs, and disposed intermediate the two web guide rollers (13,14);
the web guide rollers (13,14) are arranged one behind the other in the direction of web travel (12) for adjusting and maintaining the lateral positions of the cut webs relative to one another;
the apparatus includes two hollow profile bodies (19,20), each profile body disposed about a corresponding plate on either side of the traveling webs in substantially opposed array, the profile bodies for maintaining sub-atmospheric air pressure therewithin to urge particular matter from the webs and through the plate openings into the profile bodies;
the two hollow profile bodies are structurally linked in a carrier arrangement on which the at least two web guide rollers (13,14) are mounted.
(11)
2. Apparatus for adjusting the position of a plurality of traveling webs, and removing particulate matter from the surfaces thereof, as set forth in claim 1, wherein the apparatus is characterized in that:
the two hollow profile bodies (19,20) are rigidly connected on one corresponding end thereof;
a bracket (17) is mounted to each end of both hollow profile bodies to rotatably mount both web guide rollers (13,14) on both sides of the plates, whereby the two hollow profile bodies and the two brackets form the carriage arrangement.
the two hollow profile bodies (19,20) are rigidly connected on one corresponding end thereof;
a bracket (17) is mounted to each end of both hollow profile bodies to rotatably mount both web guide rollers (13,14) on both sides of the plates, whereby the two hollow profile bodies and the two brackets form the carriage arrangement.
3. Apparatus for adjusting the position of a plurality of traveling webs, and removing particulate matter from the surfaces thereof, as set forth in claim 2, wherein the apparatus is characterized in that:
the carrier arrangement includes an axis of rotation (18) which extends laterally of the apparatus in the plane of the co-traveling webs, the carrier axis arranged essentially parallel with the rotational axis of the web guide rollers (13,14) arranged upstream and downstream of the plates.
the carrier arrangement includes an axis of rotation (18) which extends laterally of the apparatus in the plane of the co-traveling webs, the carrier axis arranged essentially parallel with the rotational axis of the web guide rollers (13,14) arranged upstream and downstream of the plates.
4. Apparatus for adjusting the position of a plurality of traveling webs, and removing particulate matter from the surfaces thereof, as set forth in claim 3, characterized in-that the apparatus further includes:
an angled dust removal pipe (25,26) is disposed in at least one end of each of the hollow profile bodies.
an angled dust removal pipe (25,26) is disposed in at least one end of each of the hollow profile bodies.
5. Apparatus for adjusting the position of a plurality of traveling webs, and removing particulate matter from the surfaces thereof, as set forth in claim 4, wherein the apparatus is characterized in that:
at least one of the dust removal pipes (25,26) is swivel mounted about an axis which extends substantially parallel to the longitudinal portion of the hollow body.
at least one of the dust removal pipes (25,26) is swivel mounted about an axis which extends substantially parallel to the longitudinal portion of the hollow body.
6. Apparatus for adjusting the position of a plurality of traveling webs, and removing particulate matter from the surfaces thereof, as set forth in claim 1, wherein the apparatus is characterized in that:
at least one nozzle means (28,29) is disposed within each profile body for supplying a pressurized fluid to the traveling web.
at least one nozzle means (28,29) is disposed within each profile body for supplying a pressurized fluid to the traveling web.
7. Apparatus for adjusting the position of a plurality of traveling webs, and removing particulate matter from the surfaces thereof, as set forth in claim 6, wherein the apparatus is characterized in that:
a nozzle means (28,29) is arranged in each of the hollow profile bodies for spraying pressurized fluid onto each of the opposed surfaces of the traveling plurality of webs.
a nozzle means (28,29) is arranged in each of the hollow profile bodies for spraying pressurized fluid onto each of the opposed surfaces of the traveling plurality of webs.
8. Apparatus for adjusting the position of a plurality of traveling webs, and removing particulate matter from the surfaces thereof, as set forth in claim 1, wherein the apparatus is characterized in that:
the carrier arrangement is so constructed and arranged as to be capable of being rotated about its axis of rotation (1B) with the at least one plate (19A,20A) on each profile body (19,20) and the at least two guide rollers (13,14) maintaining their positions relative to the span of the cut webs between the guide rollers.
the carrier arrangement is so constructed and arranged as to be capable of being rotated about its axis of rotation (1B) with the at least one plate (19A,20A) on each profile body (19,20) and the at least two guide rollers (13,14) maintaining their positions relative to the span of the cut webs between the guide rollers.
9. Apparatus for adjusting the position of a plurality of traveling webs, and removing particulate matter from the surfaces thereof, as set forth in claim 1, wherein the apparatus is characterized in that:
an angled dust removal pipe (25,26) is disposed in at least one of each of the hollow profile bodies for linking the profile body (19,20) with a source of sub-atmospheric air pressure;
at least one nozzle means (28,29) is disposed within each profile body for supplying a hydraulic fluid to the traveling web.
an angled dust removal pipe (25,26) is disposed in at least one of each of the hollow profile bodies for linking the profile body (19,20) with a source of sub-atmospheric air pressure;
at least one nozzle means (28,29) is disposed within each profile body for supplying a hydraulic fluid to the traveling web.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9111448U DE9111448U1 (en) | 1991-09-14 | 1991-09-14 | Spreader device for roll cutting machines |
| DEG9111448.9U | 1991-09-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2118700A1 CA2118700A1 (en) | 1993-04-01 |
| CA2118700C true CA2118700C (en) | 1998-09-29 |
Family
ID=6871273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002118700A Expired - Fee Related CA2118700C (en) | 1991-09-14 | 1992-09-09 | Width adjusting machine for reel cutters |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0603281B1 (en) |
| JP (1) | JPH0780601B2 (en) |
| KR (1) | KR100193549B1 (en) |
| AT (1) | ATE148071T1 (en) |
| BR (1) | BR9206498A (en) |
| CA (1) | CA2118700C (en) |
| DE (3) | DE9111448U1 (en) |
| FI (1) | FI941187A0 (en) |
| PL (1) | PL169991B1 (en) |
| WO (1) | WO1993006035A1 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3406924A (en) * | 1965-07-09 | 1968-10-22 | Stamco Inc | Apparatus for winding coils of metal strip material |
| DE2012279A1 (en) * | 1969-03-21 | 1970-10-01 | Elitex Zävody textilniho strojirenstvl generälnl reditelstvi, Reichenberg (Tschechoslowakei) | Pneumatic ejector for cut cloth edges on - finishing machines |
| DE2937610C2 (en) * | 1979-09-18 | 1986-07-03 | H. Krantz Gmbh & Co, 5100 Aachen | Roller for straightening warped weft threads in the textile fabric |
| US4484500A (en) * | 1982-09-23 | 1984-11-27 | Crown Zellerbach Corporation | Web slitting and grooving system |
| US4925080A (en) * | 1988-10-13 | 1990-05-15 | Beloit Corporation | Spreader bar apparatus |
| DE3906376A1 (en) * | 1989-03-01 | 1990-09-06 | Will E C H Gmbh & Co | Device for slitting moving webs of material |
| FI90523C (en) * | 1989-11-22 | 1994-02-25 | Valmet Paper Machinery Inc | Device for separating the partial webs |
-
1991
- 1991-09-14 DE DE9111448U patent/DE9111448U1/en not_active Expired - Lifetime
-
1992
- 1992-09-09 AT AT92919574T patent/ATE148071T1/en not_active IP Right Cessation
- 1992-09-09 KR KR1019940700742A patent/KR100193549B1/en not_active IP Right Cessation
- 1992-09-09 WO PCT/US1992/007583 patent/WO1993006035A1/en active IP Right Grant
- 1992-09-09 BR BR9206498A patent/BR9206498A/en not_active IP Right Cessation
- 1992-09-09 DE DE0603281T patent/DE603281T1/en active Pending
- 1992-09-09 CA CA002118700A patent/CA2118700C/en not_active Expired - Fee Related
- 1992-09-09 DE DE69217067T patent/DE69217067T2/en not_active Expired - Fee Related
- 1992-09-09 PL PL92302726A patent/PL169991B1/en unknown
- 1992-09-09 JP JP5506089A patent/JPH0780601B2/en not_active Expired - Fee Related
- 1992-09-09 EP EP92919574A patent/EP0603281B1/en not_active Expired - Lifetime
-
1994
- 1994-03-11 FI FI941187A patent/FI941187A0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| KR100193549B1 (en) | 1999-06-15 |
| DE603281T1 (en) | 1995-03-16 |
| WO1993006035A1 (en) | 1993-04-01 |
| EP0603281B1 (en) | 1997-01-22 |
| EP0603281A1 (en) | 1994-06-29 |
| ATE148071T1 (en) | 1997-02-15 |
| BR9206498A (en) | 1995-10-31 |
| FI941187A (en) | 1994-03-11 |
| JPH06505467A (en) | 1994-06-23 |
| DE69217067T2 (en) | 1997-06-05 |
| DE69217067D1 (en) | 1997-03-06 |
| CA2118700A1 (en) | 1993-04-01 |
| PL169991B1 (en) | 1996-09-30 |
| DE9111448U1 (en) | 1993-01-28 |
| JPH0780601B2 (en) | 1995-08-30 |
| FI941187A0 (en) | 1994-03-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |