WO2019149905A1 - An interfolding machine with separation fingers adjacent to respective interfolding rollers - Google Patents
An interfolding machine with separation fingers adjacent to respective interfolding rollers Download PDFInfo
- Publication number
- WO2019149905A1 WO2019149905A1 PCT/EP2019/052541 EP2019052541W WO2019149905A1 WO 2019149905 A1 WO2019149905 A1 WO 2019149905A1 EP 2019052541 W EP2019052541 W EP 2019052541W WO 2019149905 A1 WO2019149905 A1 WO 2019149905A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- interfolding
- roller
- cam
- separation
- axis
- Prior art date
Links
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
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/54—Article strippers, e.g. for stripping from advancing elements
- B65H29/56—Article strippers, e.g. for stripping from advancing elements for stripping from elements or machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H31/00—Pile receivers
- B65H31/30—Arrangements for removing completed piles
- B65H31/3054—Arrangements for removing completed piles by moving the surface supporting the lowermost article of the pile, e.g. by using belts or rollers
- B65H31/3063—Arrangements for removing completed piles by moving the surface supporting the lowermost article of the pile, e.g. by using belts or rollers by special supports like carriages, containers, trays, compartments, plates or bars, e.g. moved in a closed loop
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
- B65H45/16—Rotary folders
- B65H45/162—Rotary folders with folding jaw cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
- B65H45/20—Zig-zag folders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
- B65H45/24—Interfolding sheets, e.g. cigarette or toilet papers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2403/00—Power transmission; Driving means
- B65H2403/50—Driving mechanisms
- B65H2403/51—Cam mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2403/00—Power transmission; Driving means
- B65H2403/50—Driving mechanisms
- B65H2403/51—Cam mechanisms
- B65H2403/512—Cam mechanisms involving radial plate cam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/19—Specific article or web
- B65H2701/1924—Napkins or tissues, e.g. dressings, toweling, serviettes, kitchen paper and compresses
Definitions
- the invention concerns interfolding machines. More specifically, the inven tion concerns improvements in reciprocatingly moving separation fingers combined to the interfolding rollers in order to detach folded sheets therefrom.
- Interfolding machines are commonly used in industry for manufacturing stacks of interfolded sheets. Interfolding machines are for example used for manufac- turing stacks of interfolded tissue paper napkins or similar tissue paper articles.
- the separation fingers are provided with a reciprocating pivotal movement around respective pivoting axes at a very high rate, corresponding to the production rate of the interfolding machine. [0005] In order for higher production rates to be achieved, it would be beneficial to design separation fingers which are capable of moving at higher rates. Summary
- the present invention concerns an interfolding ma chine including a first interfolding roller rotating around a first rotation axis and a second interfolding roller rotating around a second rotation axis parallel to the first rotation axis.
- the first interfolding roller and the second interfolding roller together form an interfolding nip therebetween.
- Fig.1 illustrates a schematic front view of an interfolding machine according to the invention
- Fig.3 illustrates a side view according to line III-III in Fig.2;
- Figs.5A-5C illustrate a sequence of operation in a second embodiment
- Fig.7 illustrates a sectional view according to line VII- VII of Fig.6;
- FIG.l illustrates a front view of an interfolding machine according to the in vention.
- the interfolding machine 1 comprises a first feed path for a first continuous web N 1 of tissue paper and a second feed path for a second continuous web N2 of tissue paper.
- a first rotating cutting roller 3 is arranged, which is provided with angularly spaced blades 3A.
- the blades 3A co-act with a first station ary anvil blade 4.
- a second rotating cutting roller 5 is ar ranged, which is provided with angularly spaced blades 5A.
- the blades 5A co-act with a second stationary anvil blade 6.
- the first cutting roller 3 rotates around a first rotation axis 3B and the second cutting roller 5 rotates around a second rotation axis 5B.
- the first cutting roller 3 is further provided with suction ports 3C along the cylindrical surface thereof.
- the second cutting roller 5 is in turn provided with suc tion ports 5C along the cylindrical surface thereof.
- the suction ports 3C, 5C are aimed at retaining on the surface of the respective cutting rollers 3, 5 the sheets pro prised by cutting the continuous first and second webs Nl, N2, and at transferring said sheets from the cutting rollers 3, 5 to interfolding rollers 9, 11.
- the interfolding rollers 9, 11 rotate around respective rotation axes 9A, 11 A, parallel to one another and parallel to the rotation axes of the cutting rollers 3, 5.
- the two interfolding rollers 9, 11 form an interfolding nip 13.
- Each interfolding roller 9, 11 is provided with respective folding members 15, 17.
- the folding mem bers 15, 17 can provide suction means, or mechanical gripping means or both. Inter folding rollers and folding members are known to those skilled in the art and are not described in detail.
- a first set of separation fingers 21 are associated with the first interfolding roller 9.
- the first set of separation fingers 21 are best shown in Figs. 6 and 7.
- the first interfolding roller 9 is provided with a plurality of annular grooves 9G.
- Each separation finger 9G co- acts with a respective one of the annular grooves 9G, the first interfolding roller 9 is provided with.
- annular grooves 9G and 11G provide annular spaces which project in side the cylindrical surfaces of the first interfolding roller 9 and second interfolding roller 11.
- each separation finger 21 can project in the respective annular groove 9G inside the cylindrical surface of the interfolding roller 9.
- each separation finger 23 can project in the respective annular groove 11G inside the cylindrical surface of the interfolding roller 11.
- a symmetric arrangement is provided for the second set of separation fin gers 23.
- the second set of separation fingers 23 are controlled by a respective second actuation mechanism 27, similar or identical to the first actuation mechanism 25.
- the second actuation mechanism 27 drives the second set of separation fingers 23 in a re ciprocating pivoting movement around a second pivoting axis 23 A, parallel to the ro tation axis 11A of the second interfolding roller 11.
- the pivoting axis 23A can be located on the cylindrical surface of the second interfolding roller 11, or inside said cylindrical surface.
- Fig. 7 the two end positions of the recipro cating pivoting second set of separation fingers 23 are shown.
- the pivoting movement of the first set of separation fin gers 21 is in phase opposition with respect to the movement of the second set of sep aration fingers 23, such that when the first set of separation fingers 21 are inside the annular grooves 9G, the second set of separation fingers 23 are outside the annular grooves 11G and vice-versa.
- the separation fingers 21, 23 separate the folded sheets from the respective interfolding roller 9, 11 and place the sheets on a first or second pair of count combs, described below, to form a stack of interfolded sheets thereon.
- the first and second set of separation fingers 21, 23 move in synchronism with the folding members 15, 17 so that when a folding member is releasing a folded sheet S 1 or S2 the separation fingers 21 or 23 detach or helps detaching the folded sheet form the respective interfolding roller 9, 11.
- the op timal motion law of the sets of separation fingers 21, 23 can be obtained using a re spective desmodromic cam (to be described later on).
- the desmodromic cam can be assembled with the right phase respect to the folding rollers 9, 11.
- a folded sheet contains the trailing end of the previous sheet and the leading end of the next sheet, thus forming a stack SK of interfolded sheets.
- Each first separation finger 21 is pivotally hinged to a respective stationary arm 29.
- the stationary arms 29 are integrally supported by a stationary frame 31, which can also support the first interfolding roller 9 and second interfolding roller 11.
- each second separation finger 23 is pivotally hinged to a respective sta tionary arm 33.
- the stationary arms 33 are integrally supported by the stationary frame 31.
- each stationary arm 29 and each stationary arm 33 can have a proximal end constrained to the stationary frame 31 and a distal end extending towards the cylindrical surface of the respecti ve interfolding roller 9 and 11.
- the distal end of each stationary arms 29 and 33 projects in- side a respective one of the first annular grooves 9G and second annular grooves
- the reciprocating pivoting movement of the first set of separation fingers 21 is transmitted from the first actuation mechanism 25 by means of respective connect ing rods 35.
- the reciprocating pivoting movement of the second set of separation fingers 23 is transmitted from the second actuation mechanism 27 by means of re- spective connecting rods 37.
- the separation fingers 21, 23 and/or the connecting rods 35, 37 can be made of a light material, for instance aluminum, carbon fiber, plastic or resin, or fiber- reinforced resin, to reduce the mass and thus the inertia thereof.
- each connecting rod 35 is drivingly coupled to the first rotary shaft 39 by means of a respective crank 43; reference number 43 A desig nates the hinge point between the crank 43 and the connecting rod 35.
- each connecting rod 37 is drivingly coupled to the second rotary shaft 41 by means of a respective crank 45; reference number 45A designates the hinge point between the crank 45 and the connecting rod 35.
- the reciprocating rotary motion of the first rotary shaft 39 and the reciprocating rotary motion of the second rotary shaft 41 are transmitted through the cranks 43 and 45 and through the connecting rods 35 and 37 to the respective first set of separation fingers 21 and second set of separation fingers 23.
- the second rotary shaft 41 can be controlled by a symmetrical mechanism, with a desmodromic cam, not shown, which can be designed in the same way as the desmodromic cam shown in Fig. 8 A, 8B.
- the desmodromic cams can be housed in respective boxes 61, 63 (Fig.6).
- the rotary motion of the desmodromic cams 51 can be obtained by the continuous rotary motion of the respective first and second interfolding roller 9, 11 as follows.
- a first toothed wheel 71 can be keyed on a first shaft 73 of the first interfolding roller 9.
- a second toothed wheel 75 can be keyed on a second shaft 77 of the second inter folding roller 11.
- the desmo dromic cams 51 are driven into rotation by the same motor 81 that drives into rota tion the interfolding rollers 9, 11, in other embodiments an independent electric mo tor can be provided for each desmodromic cam. In yet further embodiments, a single electric motor, independent from motor 81, can be provided to drive into rotation both desmodromic cams. If one or two independent motors are used to drive the desmodromic cams, such motors will be electronically controlled such as to rotate in synchronism with the interfolding rollers 9, 11.
- the toothed wheels 127A, 127B mesh with respective toothed racks 131 A, 131B, which form part of a slide 133.
- the slide 133 includes side panels 135, on which the toothed racks 131 A, 131B are mounted.
- the side panels 135 are connected to one another by a beam that forms part of the respective count comb and supports teeth or prongs of the respective count comb.
- the beam is labeled 93B and the prongs or teeth are numbered 93 A, and they cumulatively form the count comb 93.
- the remaining count combs 91, 95 and 97 are substantially the same or symmetrical to count comb 93 and therefore they also have a beam support ing respective prongs, the beam and the prongs forming part of the respective slide 133.
- the second pair of count combs 95, 97 can release the stack SK1 on a con veyor which removes the stack SK1 in a direction orthogonal to the figure.
- the stack separation is obtained inserting at high speed the count combs 91, 93 in the sheets flow.
- Each count comb is inserted (movement along axis X) in phase with the sheet and the separation fingers 21, 23.
- the first count comb is insert ed.
- the second count comb is inserted completing the stack separation.
- the second count comb is one sheet out of phase respect to the first count comb.
- a first set of separation fingers associated with the first interfolding roller and arranged for reciprocatingly pivoting around a first pivoting axis parallel to the first rotation axis and adjacent to the first interfolding roller;
- each sta tionary arm of the first set of separation fingers extends from the stationary frame in front of the first interfolding roller beyond the first rotation axis towards the inter folding nip; and wherein each stationary arm of the second set of separation fingers extends from the stationary frame in front of the second interfolding roller beyond the second rotation axis towards the interfolding nip.
- each sta tionary arm of the first set of separation fingers extends from the stationary frame in front of the first interfolding roller beyond the first rotation axis towards the inter folding nip; and wherein each stationary arm of the second set of separation fingers extends from the stationary frame in front of the second interfolding roller beyond the second rotation axis towards the interfolding nip.
- each sta tionary arm of the first set of separation fingers has a proximal end constrained to the stationary frame and a distal end projecting in a respective annular groove of the first interfolding roller; and wherein each stationary arm of the second set of separation fingers has a proximal end constrained to the stationary frame and a distal end pro jecting in a respective annular groove of the second interfolding roller.
- the first actuation mechanism comprises a first rotary shaft provided with a reciprocating rotary motion around an axis parallel to the first rotation axis of the first interfolding roller; wherein each first connecting rod is coupled to the first rotary shaft by a respective first crank, whereto a second end of the first connecting rod is hinged, such that the reciprocating rotary motion of the first rotary shaft is transmit ted through the first cranks and the first connecting rods to the separation fingers of the first set of separation fingers; wherein the second actuation mechanism comprises a second rotary shaft provided with a reciprocating rotary motion around an axis par allel to the second rotation axis of the second interfolding roller; wherein each sec ond connecting rod is coupled to the second rotary shaft by a respective second crank, whereto a second end of the second connecting rod is hinged, such that the re ciprocating rotary motion of the second rotary shaft is transmitted through the second cranks and the second connecting rods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Burglar Alarm Systems (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19701690.0A EP3746386B8 (en) | 2018-02-02 | 2019-02-01 | An interfolding machine with separation fingers adjacent to respective interfolding rollers |
US16/966,541 US20210047142A1 (en) | 2018-02-02 | 2019-02-01 | An interfolding machine with separation fingers adjacent to respective interfolding rollers |
CN201980017784.XA CN111836770A (en) | 2018-02-02 | 2019-02-01 | Overlapping machine with separating jaws adjacent to respective overlapping rollers |
BR112020015563-2A BR112020015563A2 (en) | 2018-02-02 | 2019-02-01 | folding machine with separating fingers adjacent to respective folding rollers |
ES19701690T ES2910364T3 (en) | 2018-02-02 | 2019-02-01 | Interfolding machine with separation fingers adjacent to respective interfolding rollers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102018000002342 | 2018-02-02 | ||
IT201800002342A IT201800002342A1 (en) | 2018-02-02 | 2018-02-02 | INTERLIFTING MACHINE WITH SEPARATORY FINGERS ADJACENT TO THE RESPECTIVE INTERFOLIATING ROLLS |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019149905A1 true WO2019149905A1 (en) | 2019-08-08 |
Family
ID=62044886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2019/052541 WO2019149905A1 (en) | 2018-02-02 | 2019-02-01 | An interfolding machine with separation fingers adjacent to respective interfolding rollers |
Country Status (7)
Country | Link |
---|---|
US (1) | US20210047142A1 (en) |
EP (1) | EP3746386B8 (en) |
CN (3) | CN208843427U (en) |
BR (1) | BR112020015563A2 (en) |
ES (1) | ES2910364T3 (en) |
IT (1) | IT201800002342A1 (en) |
WO (1) | WO2019149905A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022107074A1 (en) * | 2020-11-20 | 2022-05-27 | Körber Tissue Fold S.R.L. | Folding, or interfolding, unit of a web, or sheet, of paper in a paper converting machine |
WO2022107057A1 (en) * | 2020-11-20 | 2022-05-27 | Körber Tissue Fold S.R.L. | Suction roll of a web, or sheet, of paper in a paper converting machine |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI760165B (en) * | 2021-04-01 | 2022-04-01 | 全利機械股份有限公司 | Fiber Products Folding Mechanism |
WO2024084455A1 (en) * | 2022-10-21 | 2024-04-25 | Valmet Tissue Converting S.R.L. | Folding or interfolding machine of sheets made of paper or similar material |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3885413A (en) * | 1972-05-19 | 1975-05-27 | Bremsen & Filter Handelsges | Method and machine for fashioning sheet materials |
DE4441633A1 (en) * | 1994-11-23 | 1996-05-30 | Hobema Maschf Hermann | Folder with contra rotating cylinders for paper or tissue strips, etc. |
EP0982255A1 (en) * | 1998-08-21 | 2000-03-01 | M T C - Macchine Trasformazione Carta S.r.l. | Interfolding method of sheet material and machine for carrying out such method |
WO2010140046A1 (en) * | 2009-06-04 | 2010-12-09 | Tissuewell S.R.L. | Device for driving the folding arms of an interfolding machine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR348895A (en) * | 1904-12-03 | 1905-05-01 | Johann Heinrich Spoerl | Machine to cut alternately, to fold with interleaving the sheets between them, and to stack the paper brought in two endless bands |
DE3923436A1 (en) * | 1989-07-15 | 1991-01-24 | Winkler Duennebier Kg Masch | METHOD AND DEVICE FOR PRODUCING PAPER PACKS |
CN101670954B (en) * | 2009-10-13 | 2012-09-05 | 全利机械股份有限公司 | Machine station for folding fiber products and folding method thereof |
RU2567023C1 (en) * | 2011-08-31 | 2015-10-27 | Ска Хайджин Продактс Аб | Pile of folded sanitary articles, method and device for its making |
-
2018
- 2018-02-02 IT IT201800002342A patent/IT201800002342A1/en unknown
- 2018-03-23 CN CN201820405905.0U patent/CN208843427U/en active Active
- 2018-03-23 CN CN201820405825.5U patent/CN208843441U/en active Active
-
2019
- 2019-02-01 BR BR112020015563-2A patent/BR112020015563A2/en not_active Application Discontinuation
- 2019-02-01 WO PCT/EP2019/052541 patent/WO2019149905A1/en active Search and Examination
- 2019-02-01 EP EP19701690.0A patent/EP3746386B8/en active Active
- 2019-02-01 US US16/966,541 patent/US20210047142A1/en not_active Abandoned
- 2019-02-01 CN CN201980017784.XA patent/CN111836770A/en active Pending
- 2019-02-01 ES ES19701690T patent/ES2910364T3/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3885413A (en) * | 1972-05-19 | 1975-05-27 | Bremsen & Filter Handelsges | Method and machine for fashioning sheet materials |
DE4441633A1 (en) * | 1994-11-23 | 1996-05-30 | Hobema Maschf Hermann | Folder with contra rotating cylinders for paper or tissue strips, etc. |
EP0982255A1 (en) * | 1998-08-21 | 2000-03-01 | M T C - Macchine Trasformazione Carta S.r.l. | Interfolding method of sheet material and machine for carrying out such method |
WO2010140046A1 (en) * | 2009-06-04 | 2010-12-09 | Tissuewell S.R.L. | Device for driving the folding arms of an interfolding machine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022107074A1 (en) * | 2020-11-20 | 2022-05-27 | Körber Tissue Fold S.R.L. | Folding, or interfolding, unit of a web, or sheet, of paper in a paper converting machine |
WO2022107057A1 (en) * | 2020-11-20 | 2022-05-27 | Körber Tissue Fold S.R.L. | Suction roll of a web, or sheet, of paper in a paper converting machine |
Also Published As
Publication number | Publication date |
---|---|
US20210047142A1 (en) | 2021-02-18 |
BR112020015563A2 (en) | 2021-02-02 |
EP3746386B8 (en) | 2022-04-06 |
EP3746386B1 (en) | 2022-01-05 |
ES2910364T3 (en) | 2022-05-12 |
EP3746386A1 (en) | 2020-12-09 |
IT201800002342A1 (en) | 2019-08-02 |
CN111836770A (en) | 2020-10-27 |
CN208843427U (en) | 2019-05-10 |
CN208843441U (en) | 2019-05-10 |
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