CA2181716A1 - Equipment for the production of rolls of web material - Google Patents
Equipment for the production of rolls of web materialInfo
- Publication number
- CA2181716A1 CA2181716A1 CA002181716A CA2181716A CA2181716A1 CA 2181716 A1 CA2181716 A1 CA 2181716A1 CA 002181716 A CA002181716 A CA 002181716A CA 2181716 A CA2181716 A CA 2181716A CA 2181716 A1 CA2181716 A1 CA 2181716A1
- Authority
- CA
- Canada
- Prior art keywords
- mandrel
- equipment according
- winding
- mandrel holder
- holder
- 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.)
- Abandoned
Links
- 239000000463 material Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000004804 winding Methods 0.000 claims abstract description 25
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 241000842962 Apoda limacodes Species 0.000 description 1
- 241000937413 Axia Species 0.000 description 1
- 101100133721 Caenorhabditis elegans npr-1 gene Proteins 0.000 description 1
- 241000448280 Elates Species 0.000 description 1
- 241000257303 Hymenoptera Species 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/02—Supporting web roll
- B65H18/021—Multiple web roll supports
Landscapes
- Replacement Of Web Rolls (AREA)
- Winding Of Webs (AREA)
Abstract
A revolving mandrel holder (16) is capable of intermittent angular movement about an axis (X-X) inclined at an angle of 45.degree. to the direction (f) of advance of the web material (N) being wound; said mandrel holder (16) carries two winding mandrels (12, 12A) on inclined axes relative to the axis (X-X) about which the mandrel holder (16) moves, so that at the end of each roll winding cycle an angular movement of the mandrel holder (16) brings a free mandrel into the winding position (12), and brings the mandrel with the roll (R) formed upon it into the position (12A) in which the roll can be taken off the mandrel that formed it. A plurality of lines (A, B, C) may be arranged side by side.
Description
O W0 96,l6888 ~ 1 8 1 7 1 ~ I l,... 5il ., EQUIP~5ENT FOR TEiE ~OL~uo, lON OF ROILS OF WEB MAT~RTAT.
DES~ L lU3~1 The invention r elates to equipment f or the production of rolls of web ~tPr;;~l (which eql-i L is rlPRi~n~d for makillg prodLcts from which the ~-t-~r;:~l can be unwound and removed as and when needed, or dPR; ~nPd for other uses), that offers many advantages over conventional solutions, as will be clear from the f ollowing text .
The equipment in question h~R;~S~lly - RPC a revolving mandrel holder capable of intermittent angular movement about an axis t.hat is ; nr~l; nPr1 relative to the direction of advance of the web material to be wound; on said mandrel holder there are at least two winding mandrels on ; n-~l; n~d or skew axes relative to the axis about which the mandrel holder moves and arranged in such a way that at the end of each roll winding cycle an angular - ~ L of said mandrel holder brings a free mandrel into the winding position, and brings the or a mandrel with the roll fo~ med upon it into a position in which the roll can be taken of f the mandrel that f ormed it .
In practice, and preferably, said mandrel holder is designed to rotate about an axis orientated at approximately 45 to the direction of advance of the web material .
The revolving mc~ndrel holder may possess two winding mandrels positlon~d on opposite sides of the axis of rotation of said mandr~1 holder, which rotates through an angle of 180 in each c,ycle. Alternatively, said revolving mandrel hold~3r may possess four winding mandrels arranged square to each other, in which case the revolving mandrel holder rotates through an angle of 90 in each cycle.
In one practical ~ L the mandrels are actuated by a drive compl.ising members that rotate about an axis pAr~ l with but not crin~ lin~ with the axis about which said mandrel holder has its intermittent angular ~, L. In this way it is possible selectively to turn only that mandrel on which the web material is to be wound to form the roll, while the mandrel for which the roll is to be llnl oA~l~d is not turned, because the drive is engaged only with the mandrel currently in the winding position. This drive may include a pair of friction drive members or drive members with cyclical and temporary engagement.
The mandrels may be tubular with perf orated walls, in which case r~hAnn~l ~ may be provided in the mandrel holder supporting structure, in said mandrel holder and in its mandrels in order to create a suction into the interior of that mandrel which is tempor2rily in the winding position, in order to initiate winding.
Alternatively - or additionally - the equipment may comprise means f or placing a tubular core on a mandrel that is to initiate winding onto that core.
An advantageous feature of the equipment according to the invention is that it may include a plurality of production lines positioned side by side, each having its own revolving mandrel holder: the complete assembly o~cllrie~ little space and is such as to facilitate the llnl OA~i n~ of the formed rolls .
A clearer understanding of the invention will be provided by the description and A~ nying drawing, the latter showing a practical, non-restricting example of said invention. In the drawing:
Fig. 1 shows in plan view a diagram of ~the equipment according to the invention with a plurality of production lines;
Fig. 2 is a view of Fig. l from line II-II;
Fig. 3 is a view of Fig. l from line III-III;
Fig. 4 is an alternative ' -'i L in a similar view to that shown in Fig. 3;
Fig. 5 is a transverse ~ection essentially on V-V
as marked in Fig. 3 or in Fig. 4; and 0 Wo 96116888 2 1 8 1 7 1 6 P~
Figs. 6, 7 and 8 show an alternative to Fig. 5 and sections on VII-VII and VIII-VIII as marked in Fig. 5.
As illustrated iln the ~r_ -nying drawing, A, 5 and C are three production lines positioned side by side to form a multiple equiprlent a3ser~bly that can be made to occupy very little 8pace by adopting the rrinr-;rlDc Of the invention.
With reference tc) line A, to which lines B and C
lO are perfectly equivalent, 10 is a general reference for an endless CullVCyUL belt system that feeds the web material in the directiom of the arrow _ 80 that it can be wound onto a mandrel situated at the end of the conveyor 10. The conveying action is continuous or 15 largely continuous - that is to say in some cases it may be intermittent - and leads to the winding up of continuous web material or of a material made up of a plurality of - s, that is products, that are intended to be ~i cpDncDd and are attached for the winding 2 0 operation .
At the end of the CU11V~YUL system 10 is a mandrel in position 12, onto whi ch the web material N is wound until the roll R is complete. In Figs. 1 and 3, a roll in mid-formation on the mandrel in position 12 is marked Rû, 25 while in another position the roll is marked R in its final form. The material N may initially be wound onto the mandrel 12 by the action of pneumatic suction through holes in the tubular walls of the mandrel, or alternatively a tubular core may be placed on the mandrel 30 12 and the front end of the material N to be wound onto the mandrel may be captured by an adhesive surface present on said core.
When the roll iY f; n; ch~-l it is important to remove the formed roll as fast and as compactly as 35 possible and bring in a mandrel ready to receive the f ront end of the material N as it again advances in the direction of arrow f, in order to begin making the new roll as soon as a winding mandrel has been moved into 2 ~ 8 1 7 1 6 position. The means by which these operations are performed must also be such as to occupy a limited amount of space in order that a plurality of production lines ~uch as A, 8 and C can be installed very close togethAr.
5 ~nother ~nn~irlAr;ltir~ is the convenience of being able to unload and reve the rolls easily as they are formed.
As illustrated in the Al-- -nying drawing, the h~nt~l i nrJ of the ~; n; F:hA~l roll and the presenting of a mandrel in the winding position at the end of the 0 C:ullvt~yuL system 10 is :-f - , ~ hPd by means of a mandrel holder 16 capable of rotating about an axis X-X that is ; nrl; n~ relative to the axis of the mandrel in position 12, in the plan view, and also relative to the direction f of advance of the web material to be wound. The mandrel 15 holder 16, which is dA~;snAcl for intermittent rotation about its axis X-X, may be made up of _ Ants 16A, 16B
and 16C; this last - L 16C is a sleeve mounted for rotation about a fixed tubular support 18 which is integral with f ixed supporting means bearing the general 20 reference 20. Teeth 22 receive an intermittent -- v~ L
of rotation in the direction indicated by arrow f22 about the axis X-X f or the purposes indicated below; this intermittent rotation in accordanoe with the example of Fig. 3 is an angular v. t of 180 in each cycle, 25 whereas in the alternative ~ shown in Fig. 4 the intermittent angular v~ L is of 90. The mandrel holder 16 in the example shown in Fig. 3 is fitted with two mandrels, one of which is the mandrel 12 already ref erred to and the other a mandrel 12A which is mounted 30 in a ~y LLical position opposite the mandrel 12 relative to a plane passing through the axis X-X. The axis of the mandrel in position 12 in the drawing lies at 45 to the axis X-X and is at right angles - as already noted - to the direction of advance of the web material N
35 in the direction of arrow f; in the same way the mandrel in position 12A is ;nrl;nAcl at 45 relative to the axis X-X. The axes of the mandrels may in principle and as an alternative be skew relative to the axis X-X, provided o W096,l6888 ~1 8 1 7 1 6 .~
they are in such positi~ns that the 180 rotation brings each mandrel into the position in which the other had been previously. Each of the mandrels 12, 12A is supported by the mandrel holder 16 and rotates in 5 h.cz~rinqs 24, 24A, whicll are ~kP~r h~d in in Fig. 5. A
shaft 26 rotates inside the tube 18 ; nrl~rF-n~ ntly of the tube 18 and receives its motion through a gear co~l in~
28; said shaft 26 may ~e slightly out of Al i ~ t. with the axis X-X 80 that it will only turn the mandrel present in position 12, via a conical friction wheel 30 and that one of the two conical friction pinions 32 and 32A which is i nte~r~l with the mandrel present in position 12. An axial thrust means bearing the general reference 34 ensures ~lhPc;~n between the drive members 30 and 32 (or 32A) for the purpose of turning the mandrel in position 12. The members 30, 32, 32A may also be toothed, in which case the thrust means acts as a shock ~r and facilitates the initial engagement.
In the example shown in Fig. 5, each of the mandrels i5 ri~ci~n~d to attract the front end of the web material N pneumaticall~. To this end the mandrels, such as 12, 12A, are of tubular construction with suction apertures 12X and a fixed connection 36 is provided to the support 20 where t}le mandrel is in position 12; in turn, this connection ~6 is connected to a manifold 38 formed within the revolving mandrel holder 16 leading away f rom the cavity o E the tubular mandrel present at position 12; in this way only the mandrel in position 12 is subjected to a partie~l vacuum by a source connected to the connection 36, with the result that the front end of the web material N is captured in the initial forming of the roll RO that is being f ormed on the mandrel in position 12 with the f eed as rl~srr; hl-rl . When a mandrel moves f rom position 12 l:o position 12A the suction action ceases because the connection 36 and the r~-nifold 38 are separated f rom each other . When a mandrel reaches position 12A, this manifold 38 may be in line with a connection similar to the connection 36 but fed with .. _ . . . ... ... .. _ .. . . , , _ , .. .
WO96116888 2 1 3 1 7 1 6 1~.,1.. . ~
_ _ -essed air to facilitate removal, that is axial wi~h~lrA~-cl from the mandrel in po3ition 12A "by r~lrr~nC;nn~ of the roll formed upon it, a6 is indicated by arrow fA in the case of roll RA in the process of being taken of f ( see Fig . 1 ) .
Each of the mandrels 12 and 12A when placed in position 12 is spun in the manner indicated by the drive 26, 30, 32 ~or 32A) by the pinion 28 which receives its motion from a fixed structure. The gear 22 brings about the intermittent , c of the mandrel holder 16 about the axis X-X in such a way that in each cycle a mandrel in position 12 is brought into position 12A following the arrow f22 to enable the formed roll to be llnlnAf~r~r3~ while the mandrel with no roll, currently in position 12A, i5 moved into position 12 to - - ~ the f orming of a new roll . With this arrangement it is p ~sihl ,~ to remove the newly formed roll from the mandrel that has formed it and is now moving to position 12A; the roll is withdrawn in direction fA, i.e. axially, rather than in the same direction as the direction of advance of the web material N, i.e. in the direction of arrow f, or axially from the mandrel still in position 12, because both of these rossihilities are very lir~ted; the f~rr;~n, L
illustrated is also f ast when it comes to putting a new mandrel in position 12 to begin forming a new roll. The arrangement of the mandrel holder 16 with the mandrels such as 12, 12A moving in succession into the two positions not only has the advantages indicated above but also saves space transversely relative to the advancing VG t of the web material in direction f on the advancing systems lO. This means that many lines ~uch a,s A, B, C may be arranged very c}ose together and parallel with each other to allow parallel operation, while the amount of f loor space required is ver~ small .
In the ArrA-, L illustrated in Figs. 1 to 3 ~nd 5 only two mandrels 12, 12A are provided: these take the place of each other every time the mandrel holder 16 makes ~ its intermittent angular ~, L into the two ~ WO96/16888 2 1 8 1 7 1 6 ~ A -positions illustrated, ~ith an angular stroke of 180. In the alternative versiorl shown in Fig. 4, not only are there two mandrels in positions 12 and 12A, but also two other mandrels in posi tions 12B and 12C in a square 5 arrangement relative to mandrels 12, 12A, f orming a cross in the axial view shown in Fig. 4. In this ~ ; t the inter_ittent angular ~, - L in the direction of arrow f22 i5 just 90 rather than 180.
With the "revol~er cylinder~-like ~ v~ --t of the mandrel holder 16 throu~h angular strokes of 180 or 90 it is possible to achieve very fast repl ~ L of the mandrel in position 12, that is in front of the advancing system 10. The angular r- ~ Ls of the mandrel holder 16 can be synchronized with both the operation of suitahle means f or cutting the web material N when a roll has been ~ully wound, and apE)ropriate interruptions to the advancing or activating of a~ tnr means (festoons) f or temporarily interrupting the wincling by means of devices already known per se.
In the direction of arrow fA, means will be provided for collecting and forwarding the already formed rolls, and si ilar arr~-n~ s will be provided at each of the other production lines such as B and C indicated in Fig. 1 for the rolls ~ormed there.
Figs. 6, 7 and 8 show an alternative ~mhc~li L
in which the mandrels ~uch as 12 and 12A are replaced with mandrels 112 and 112A. Each of these mandrels comprises a perforated box section 114 which, like the mandrel 12, can apply both partial ~acuum and extra pressure; fitted around this section 114 are two opposite channel sections 116 that are secured by pins 118 through slots 120 slanting in opposite directions and that have slanting ends 116A. A centre 122 can engage with the mandrel in position 112: by advancing axia}ly in the direction fl22, this centre acts on the edges 116A and pushes axially on the se~tions 116 which expand radially;
the result is to form the reel RO, as in the previous case. ~hen the mandrel holder 16 is to be turned, the _ _ _ _ _ _ _ _ _ _ . . .. . , . . _ _ , .. _ _ . .. . .. .. . .
WO 96116m 1 centre 122 is withdrawn axially and the two sections 116 can close together again; the result i8 that when the mandrel 112 reaches po6ition 112A, the reel RA can easily be slid off in the direction fA.
A5 an alternative to the system of suction capture by the mandrel in position 12 in front of the ~lV~y~L system 10, the roll can be formed around a tubular core, in which case an adhesive surface will be provided for the front end of the web material when the material begins to be wound around a roll. If this approach is adopted, a core can be fitted either onto the mandrel as it arrives in position 12 or onto the mandrel as soon as its roll is removed in position 12A, or yet again - in the case o~ Fig. 5 - onto the mandrel waiting in an in~ te position between position 12A and position 12, f or example in the downward-pointing position .
DES~ L lU3~1 The invention r elates to equipment f or the production of rolls of web ~tPr;;~l (which eql-i L is rlPRi~n~d for makillg prodLcts from which the ~-t-~r;:~l can be unwound and removed as and when needed, or dPR; ~nPd for other uses), that offers many advantages over conventional solutions, as will be clear from the f ollowing text .
The equipment in question h~R;~S~lly - RPC a revolving mandrel holder capable of intermittent angular movement about an axis t.hat is ; nr~l; nPr1 relative to the direction of advance of the web material to be wound; on said mandrel holder there are at least two winding mandrels on ; n-~l; n~d or skew axes relative to the axis about which the mandrel holder moves and arranged in such a way that at the end of each roll winding cycle an angular - ~ L of said mandrel holder brings a free mandrel into the winding position, and brings the or a mandrel with the roll fo~ med upon it into a position in which the roll can be taken of f the mandrel that f ormed it .
In practice, and preferably, said mandrel holder is designed to rotate about an axis orientated at approximately 45 to the direction of advance of the web material .
The revolving mc~ndrel holder may possess two winding mandrels positlon~d on opposite sides of the axis of rotation of said mandr~1 holder, which rotates through an angle of 180 in each c,ycle. Alternatively, said revolving mandrel hold~3r may possess four winding mandrels arranged square to each other, in which case the revolving mandrel holder rotates through an angle of 90 in each cycle.
In one practical ~ L the mandrels are actuated by a drive compl.ising members that rotate about an axis pAr~ l with but not crin~ lin~ with the axis about which said mandrel holder has its intermittent angular ~, L. In this way it is possible selectively to turn only that mandrel on which the web material is to be wound to form the roll, while the mandrel for which the roll is to be llnl oA~l~d is not turned, because the drive is engaged only with the mandrel currently in the winding position. This drive may include a pair of friction drive members or drive members with cyclical and temporary engagement.
The mandrels may be tubular with perf orated walls, in which case r~hAnn~l ~ may be provided in the mandrel holder supporting structure, in said mandrel holder and in its mandrels in order to create a suction into the interior of that mandrel which is tempor2rily in the winding position, in order to initiate winding.
Alternatively - or additionally - the equipment may comprise means f or placing a tubular core on a mandrel that is to initiate winding onto that core.
An advantageous feature of the equipment according to the invention is that it may include a plurality of production lines positioned side by side, each having its own revolving mandrel holder: the complete assembly o~cllrie~ little space and is such as to facilitate the llnl OA~i n~ of the formed rolls .
A clearer understanding of the invention will be provided by the description and A~ nying drawing, the latter showing a practical, non-restricting example of said invention. In the drawing:
Fig. 1 shows in plan view a diagram of ~the equipment according to the invention with a plurality of production lines;
Fig. 2 is a view of Fig. l from line II-II;
Fig. 3 is a view of Fig. l from line III-III;
Fig. 4 is an alternative ' -'i L in a similar view to that shown in Fig. 3;
Fig. 5 is a transverse ~ection essentially on V-V
as marked in Fig. 3 or in Fig. 4; and 0 Wo 96116888 2 1 8 1 7 1 6 P~
Figs. 6, 7 and 8 show an alternative to Fig. 5 and sections on VII-VII and VIII-VIII as marked in Fig. 5.
As illustrated iln the ~r_ -nying drawing, A, 5 and C are three production lines positioned side by side to form a multiple equiprlent a3ser~bly that can be made to occupy very little 8pace by adopting the rrinr-;rlDc Of the invention.
With reference tc) line A, to which lines B and C
lO are perfectly equivalent, 10 is a general reference for an endless CullVCyUL belt system that feeds the web material in the directiom of the arrow _ 80 that it can be wound onto a mandrel situated at the end of the conveyor 10. The conveying action is continuous or 15 largely continuous - that is to say in some cases it may be intermittent - and leads to the winding up of continuous web material or of a material made up of a plurality of - s, that is products, that are intended to be ~i cpDncDd and are attached for the winding 2 0 operation .
At the end of the CU11V~YUL system 10 is a mandrel in position 12, onto whi ch the web material N is wound until the roll R is complete. In Figs. 1 and 3, a roll in mid-formation on the mandrel in position 12 is marked Rû, 25 while in another position the roll is marked R in its final form. The material N may initially be wound onto the mandrel 12 by the action of pneumatic suction through holes in the tubular walls of the mandrel, or alternatively a tubular core may be placed on the mandrel 30 12 and the front end of the material N to be wound onto the mandrel may be captured by an adhesive surface present on said core.
When the roll iY f; n; ch~-l it is important to remove the formed roll as fast and as compactly as 35 possible and bring in a mandrel ready to receive the f ront end of the material N as it again advances in the direction of arrow f, in order to begin making the new roll as soon as a winding mandrel has been moved into 2 ~ 8 1 7 1 6 position. The means by which these operations are performed must also be such as to occupy a limited amount of space in order that a plurality of production lines ~uch as A, 8 and C can be installed very close togethAr.
5 ~nother ~nn~irlAr;ltir~ is the convenience of being able to unload and reve the rolls easily as they are formed.
As illustrated in the Al-- -nying drawing, the h~nt~l i nrJ of the ~; n; F:hA~l roll and the presenting of a mandrel in the winding position at the end of the 0 C:ullvt~yuL system 10 is :-f - , ~ hPd by means of a mandrel holder 16 capable of rotating about an axis X-X that is ; nrl; n~ relative to the axis of the mandrel in position 12, in the plan view, and also relative to the direction f of advance of the web material to be wound. The mandrel 15 holder 16, which is dA~;snAcl for intermittent rotation about its axis X-X, may be made up of _ Ants 16A, 16B
and 16C; this last - L 16C is a sleeve mounted for rotation about a fixed tubular support 18 which is integral with f ixed supporting means bearing the general 20 reference 20. Teeth 22 receive an intermittent -- v~ L
of rotation in the direction indicated by arrow f22 about the axis X-X f or the purposes indicated below; this intermittent rotation in accordanoe with the example of Fig. 3 is an angular v. t of 180 in each cycle, 25 whereas in the alternative ~ shown in Fig. 4 the intermittent angular v~ L is of 90. The mandrel holder 16 in the example shown in Fig. 3 is fitted with two mandrels, one of which is the mandrel 12 already ref erred to and the other a mandrel 12A which is mounted 30 in a ~y LLical position opposite the mandrel 12 relative to a plane passing through the axis X-X. The axis of the mandrel in position 12 in the drawing lies at 45 to the axis X-X and is at right angles - as already noted - to the direction of advance of the web material N
35 in the direction of arrow f; in the same way the mandrel in position 12A is ;nrl;nAcl at 45 relative to the axis X-X. The axes of the mandrels may in principle and as an alternative be skew relative to the axis X-X, provided o W096,l6888 ~1 8 1 7 1 6 .~
they are in such positi~ns that the 180 rotation brings each mandrel into the position in which the other had been previously. Each of the mandrels 12, 12A is supported by the mandrel holder 16 and rotates in 5 h.cz~rinqs 24, 24A, whicll are ~kP~r h~d in in Fig. 5. A
shaft 26 rotates inside the tube 18 ; nrl~rF-n~ ntly of the tube 18 and receives its motion through a gear co~l in~
28; said shaft 26 may ~e slightly out of Al i ~ t. with the axis X-X 80 that it will only turn the mandrel present in position 12, via a conical friction wheel 30 and that one of the two conical friction pinions 32 and 32A which is i nte~r~l with the mandrel present in position 12. An axial thrust means bearing the general reference 34 ensures ~lhPc;~n between the drive members 30 and 32 (or 32A) for the purpose of turning the mandrel in position 12. The members 30, 32, 32A may also be toothed, in which case the thrust means acts as a shock ~r and facilitates the initial engagement.
In the example shown in Fig. 5, each of the mandrels i5 ri~ci~n~d to attract the front end of the web material N pneumaticall~. To this end the mandrels, such as 12, 12A, are of tubular construction with suction apertures 12X and a fixed connection 36 is provided to the support 20 where t}le mandrel is in position 12; in turn, this connection ~6 is connected to a manifold 38 formed within the revolving mandrel holder 16 leading away f rom the cavity o E the tubular mandrel present at position 12; in this way only the mandrel in position 12 is subjected to a partie~l vacuum by a source connected to the connection 36, with the result that the front end of the web material N is captured in the initial forming of the roll RO that is being f ormed on the mandrel in position 12 with the f eed as rl~srr; hl-rl . When a mandrel moves f rom position 12 l:o position 12A the suction action ceases because the connection 36 and the r~-nifold 38 are separated f rom each other . When a mandrel reaches position 12A, this manifold 38 may be in line with a connection similar to the connection 36 but fed with .. _ . . . ... ... .. _ .. . . , , _ , .. .
WO96116888 2 1 3 1 7 1 6 1~.,1.. . ~
_ _ -essed air to facilitate removal, that is axial wi~h~lrA~-cl from the mandrel in po3ition 12A "by r~lrr~nC;nn~ of the roll formed upon it, a6 is indicated by arrow fA in the case of roll RA in the process of being taken of f ( see Fig . 1 ) .
Each of the mandrels 12 and 12A when placed in position 12 is spun in the manner indicated by the drive 26, 30, 32 ~or 32A) by the pinion 28 which receives its motion from a fixed structure. The gear 22 brings about the intermittent , c of the mandrel holder 16 about the axis X-X in such a way that in each cycle a mandrel in position 12 is brought into position 12A following the arrow f22 to enable the formed roll to be llnlnAf~r~r3~ while the mandrel with no roll, currently in position 12A, i5 moved into position 12 to - - ~ the f orming of a new roll . With this arrangement it is p ~sihl ,~ to remove the newly formed roll from the mandrel that has formed it and is now moving to position 12A; the roll is withdrawn in direction fA, i.e. axially, rather than in the same direction as the direction of advance of the web material N, i.e. in the direction of arrow f, or axially from the mandrel still in position 12, because both of these rossihilities are very lir~ted; the f~rr;~n, L
illustrated is also f ast when it comes to putting a new mandrel in position 12 to begin forming a new roll. The arrangement of the mandrel holder 16 with the mandrels such as 12, 12A moving in succession into the two positions not only has the advantages indicated above but also saves space transversely relative to the advancing VG t of the web material in direction f on the advancing systems lO. This means that many lines ~uch a,s A, B, C may be arranged very c}ose together and parallel with each other to allow parallel operation, while the amount of f loor space required is ver~ small .
In the ArrA-, L illustrated in Figs. 1 to 3 ~nd 5 only two mandrels 12, 12A are provided: these take the place of each other every time the mandrel holder 16 makes ~ its intermittent angular ~, L into the two ~ WO96/16888 2 1 8 1 7 1 6 ~ A -positions illustrated, ~ith an angular stroke of 180. In the alternative versiorl shown in Fig. 4, not only are there two mandrels in positions 12 and 12A, but also two other mandrels in posi tions 12B and 12C in a square 5 arrangement relative to mandrels 12, 12A, f orming a cross in the axial view shown in Fig. 4. In this ~ ; t the inter_ittent angular ~, - L in the direction of arrow f22 i5 just 90 rather than 180.
With the "revol~er cylinder~-like ~ v~ --t of the mandrel holder 16 throu~h angular strokes of 180 or 90 it is possible to achieve very fast repl ~ L of the mandrel in position 12, that is in front of the advancing system 10. The angular r- ~ Ls of the mandrel holder 16 can be synchronized with both the operation of suitahle means f or cutting the web material N when a roll has been ~ully wound, and apE)ropriate interruptions to the advancing or activating of a~ tnr means (festoons) f or temporarily interrupting the wincling by means of devices already known per se.
In the direction of arrow fA, means will be provided for collecting and forwarding the already formed rolls, and si ilar arr~-n~ s will be provided at each of the other production lines such as B and C indicated in Fig. 1 for the rolls ~ormed there.
Figs. 6, 7 and 8 show an alternative ~mhc~li L
in which the mandrels ~uch as 12 and 12A are replaced with mandrels 112 and 112A. Each of these mandrels comprises a perforated box section 114 which, like the mandrel 12, can apply both partial ~acuum and extra pressure; fitted around this section 114 are two opposite channel sections 116 that are secured by pins 118 through slots 120 slanting in opposite directions and that have slanting ends 116A. A centre 122 can engage with the mandrel in position 112: by advancing axia}ly in the direction fl22, this centre acts on the edges 116A and pushes axially on the se~tions 116 which expand radially;
the result is to form the reel RO, as in the previous case. ~hen the mandrel holder 16 is to be turned, the _ _ _ _ _ _ _ _ _ _ . . .. . , . . _ _ , .. _ _ . .. . .. .. . .
WO 96116m 1 centre 122 is withdrawn axially and the two sections 116 can close together again; the result i8 that when the mandrel 112 reaches po6ition 112A, the reel RA can easily be slid off in the direction fA.
A5 an alternative to the system of suction capture by the mandrel in position 12 in front of the ~lV~y~L system 10, the roll can be formed around a tubular core, in which case an adhesive surface will be provided for the front end of the web material when the material begins to be wound around a roll. If this approach is adopted, a core can be fitted either onto the mandrel as it arrives in position 12 or onto the mandrel as soon as its roll is removed in position 12A, or yet again - in the case o~ Fig. 5 - onto the mandrel waiting in an in~ te position between position 12A and position 12, f or example in the downward-pointing position .
Claims (12)
1. Equipment for the production of rolls of web material - which equipment is designed for making products from which the material can be unwound and removed as and when needed, or designed for other uses -characterized in that it comprises a revolving mandrel holder (16) capable of intermittent angular movement about an axis (X-X) that is inclined relative to the direction (f) of advance of the web material (N) to be wound, and on said mandrel holder (16) at least two winding mandrels (12, 12A) on inclined or skew axes relative to the axis (X-X) about which the mandrel holder (16) moves, so that at the end of a roll winding cycle an angular movement of the mandrel holder (16) brings a free mandrel into the winding position (12), and brings the or a mandrel with the roll (R) formed upon it into a position (12A) in which the roll can be taken off the mandrel that formed it.
2. Equipment according to Claim 1, characterized in that said mandrel holder (16) is designed to rotate about an axis (X-X) orientated at approximately 45° to the direction (f) of advance of the web material.
3. Equipment according to Claim 1 or 2, characterized in that said mandrel holder (16) possesses two winding mandrels positioned on opposite sides of the axis of rotation of said mandrel holder, which rotates through an angle of 180° in each cycle.
4. Equipment according to Claim 1 or 2, characterized in that said mandrel holder (16) possesses four winding mandrels (12, 12A, 12B, 12C) arranged square to each other, and said mandrel holder rotates through an angle of 90° in each cycle.
5. Equipment according to at least one of the previous claims, characterized in that a drive for actuating the mandrels comprises members (28, 26, 30) that rotate about an axis parallel with but not coinciding with the axis (X-X) about which said mandrel holder has its intermittent angular movement, so that said drive is engaged only with the mandrel currently in the winding position.
6. Equipment according to Claim 5, characterized in that said drive comprises friction wheels, especially conical friction wheels (30, 32, 32A).
7. Equipment according to Claim 5 or 6, characterized in that it comprises an axial thrust means (34) to ensure friction and facilitate engagement.
8. Equipment according to at least one of the previous claims, characterized in that it comprises tubular mandrels with perforated walls and, in the mandrel holder (16) supporting structure (18, 20) and in said mandrel holder (16) and in its mandrels, channels (36; 18) for creating suction into the interior of that mandrel which is temporarily in the winding position (12), in order to initiate winding.
9. Equipment according to Claim 8, characterized in that it also comprises channels for creating a pneumatic thrust by feeding compressed air into the interior of the mandrel in the unloading position (12A) so as to facilitate removal by "expansion" of the roll to be removed.
10. Equipment according to at least one of Claims 1 to 7, characterized in that it comprises means for placing a tubular core on a mandrel that is to initiate winding onto that core.
11. Equipment according to Claim 8, characterized in that it comprises expansible members (116) for facilitating the withdrawal of the reel from a mandrel (112).
12. Equipment according to at least one of the previous claims, characterized in that it comprises a plurality of production lines (A, B, C) positioned side by side and each having its own revolving mandrel holder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITFI94A000214 | 1994-11-29 | ||
| ITFI940214A IT1269157B (en) | 1994-11-29 | 1994-11-29 | PLANT FOR THE PRODUCTION OF ROLLS IN TAPE MATERIAL |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2181716A1 true CA2181716A1 (en) | 1996-06-06 |
Family
ID=11351027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002181716A Abandoned CA2181716A1 (en) | 1994-11-29 | 1995-11-27 | Equipment for the production of rolls of web material |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0741664A1 (en) |
| AU (1) | AU3992995A (en) |
| BR (1) | BR9506655A (en) |
| CA (1) | CA2181716A1 (en) |
| IT (1) | IT1269157B (en) |
| WO (1) | WO1996016888A1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4529141A (en) * | 1984-01-13 | 1985-07-16 | Imd Corporation | Method and apparatus for rewinding, severing and transferring web-like material |
| GB8914482D0 (en) * | 1989-06-23 | 1989-08-09 | Bridges Geoffrey | Improvements in and relating to machines for forming rolls of plastics materials |
| US5221056A (en) * | 1990-02-05 | 1993-06-22 | Print-O-Tape, Inc. | Pneumatically controlled spooling apparatus |
-
1994
- 1994-11-29 IT ITFI940214A patent/IT1269157B/en active IP Right Grant
-
1995
- 1995-11-27 AU AU39929/95A patent/AU3992995A/en not_active Abandoned
- 1995-11-27 EP EP95938592A patent/EP0741664A1/en not_active Withdrawn
- 1995-11-27 WO PCT/IT1995/000199 patent/WO1996016888A1/en not_active Application Discontinuation
- 1995-11-27 CA CA002181716A patent/CA2181716A1/en not_active Abandoned
- 1995-11-27 BR BR9506655A patent/BR9506655A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| ITFI940214A0 (en) | 1994-11-29 |
| WO1996016888A1 (en) | 1996-06-06 |
| AU3992995A (en) | 1996-06-19 |
| BR9506655A (en) | 1997-09-16 |
| IT1269157B (en) | 1997-03-21 |
| ITFI940214A1 (en) | 1996-05-29 |
| EP0741664A1 (en) | 1996-11-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |