WO2022246486A1 - Falzmaschine für papier und weiches faltgut - Google Patents
Falzmaschine für papier und weiches faltgut Download PDFInfo
- Publication number
- WO2022246486A1 WO2022246486A1 PCT/AT2022/060163 AT2022060163W WO2022246486A1 WO 2022246486 A1 WO2022246486 A1 WO 2022246486A1 AT 2022060163 W AT2022060163 W AT 2022060163W WO 2022246486 A1 WO2022246486 A1 WO 2022246486A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- paper
- folding
- machine according
- folding machine
- rotary bearing
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims abstract description 10
- 238000003825 pressing Methods 0.000 claims abstract description 25
- 238000000926 separation method Methods 0.000 claims description 17
- 238000003860 storage Methods 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 11
- 210000003323 beak Anatomy 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 3
- 230000032258 transport Effects 0.000 abstract description 41
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- 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
- B65H45/161—Flying tuck 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
- B65H45/14—Buckling 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
- B65H45/16—Rotary 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
- 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
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/14—Roller pairs
- B65H2404/142—Roller pairs arranged on movable frame
- B65H2404/1421—Roller pairs arranged on movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis
-
- 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 relates to a folding machine for paper and soft foldable material with a storage frame in which a rotary bearing is rotatably mounted, which contains rotary working rollers that are parallel to one another, with a pressure device for pressing the paper at positions on the rotary bearing and an external control element rotating with it being provided .
- Hygienic paper such as toilet paper or kitchen paper
- Such folding machines for folding paper and soft foldable material also serve as sanitary paper dispensers if they provide the folded sheet of foldable material for removal after the folding process.
- the invention is based on prior art according to WO 2006/048177 A2 and WO 94/08882 and EP 2279684A2, the content of which is hereby referred to.
- this known buckle folding machine four work rolls with the same outer diameter are arranged together in a revolving bogie mounted in a machine frame.
- a pair of conveyor rollers also mounted in the machine frame, can be controlled via a connecting link on the rotary frame and interacts with this when drawing in and compressing the material to be folded to form the first fold.
- the rotating frame is set in rotation by a drive, one of the rollers rotating with it being displaceable by means of a cam and forming the second fold together with another working roller.
- the well-known buckle folding machine is controlled by the revolving bogie and its connecting link as well as by the internal cam or, in the case of fully electronic control, additionally via the speed ratio between the work rollers and the bogie.
- the paper is drawn in, folded and ejected as it rotates around the bogie. With the compression function, however, soft materials cannot be folded without problems.
- One object of the present invention is to design the known folding machine for soft foldable material - mainly sanitary paper - as a variant without a compression function and to enable the paper to be fed in without upstream feed technology and the paper to be fed without a separate drive unit. Another task was to integrate an automatic detection system for the length of a paper sheet section and a separating function for perforated and non-perforated sanitary paper.
- the present invention is characterized, among other things, in that the pressing device is mounted in an opening flap and is formed by two profile bodies which are controlled by the external control element, and the first profile body, in cooperation with a first working roller, receives and transports the paper and the second profile body guides the paper in contact with the first working roller and third working roller running in opposite directions to a first folding gap, and a pivoting nose rotated with the rotary bearing and positively controlled via an internal control element for a second folding of the paper in a second folding gap between the first working roller and the second Working role is provided.
- a pressing device is arranged so that it can move via a pivot axis that runs parallel to the rotary bearing and transversely to the paper feed direction, which, in cooperation with the adjacent work rollers, is responsible for picking up and transporting the Paper and its first fold causes and supports the separation of the sanitary paper.
- first profile body can advantageously be equipped with a contact surface or, alternatively, with a transport roller
- second profile body can be designed with a round nose, with at least one lateral link roller being provided on both profile bodies, which is positioned on a bearing axis parallel to the pivot axis of the pressing device for the engagement running with an outer control.
- a rotary bearing has two side disks that can be rotated about a bearing axis and are connected to one another via a web, with at least one of the side disks being designed with a cam that rotates as an external control element, which controls the pivoting of the profile bodies.
- a further feature provides that the two profiled bodies of the pressing device execute pivoting movements against a spring force and along the side disks of the rotary bearing, which are designed as control curves.
- the control curve is divided into curve sections that control the picking up and transport of the paper as well as the first folding and the separation of the paper.
- the pivoting movement of the first profile body is restricted to control it, wherein a blocking surface of the second profile body limits the movement to the outside and a blocking surface of the opening flap leads the first profile body separately from the control curve for receiving the paper to the first working roll and bridges lower curve sections.
- the present invention also shows that in the rotary bearing, instead of a displaceable working or compression roller, a pivoting nose is arranged, which can be pivoted about a longitudinal axis running parallel to the working rolls, preferably about the axis of the third working roll and is resiliently prestressed towards the paper, which with its nose-shaped design via an inner control element in a position for free pre-folding and in a position for direct feeding of the soft, pre-folded paper into the second folding gap formed by a pair of working rollers without compression function can be positively controlled, with the control element being shown as being rotatable on the bearing plate positioned control cam for engaging a lateral link roller, which runs on a bearing shaft positioned parallel to the longitudinal axis of the pivoting nose.
- the outwardly directed side of the pivoting nose can be designed as a rolling surface for the transport roller of the first profile body to feed the paper.
- the position of the inner control element and the gear ratio between the rotation of the rotary bearing and that of the working rollers determine the length of the second blade section.
- electronic control of the drive source of the rotary bearing and the working rollers can be provided in the invention, which can take place both via the speed ratio and via a stop/start function, with the paper being rotated during circulation of the rotation store, primarily folded into three layers, cut off, the length of a sheet section is determined and made available from the storage rack.
- the length of the paper feed made by the first profile body in contact with the first working roller until the paper is fed through the round beak of the second profile body into the first folding gap of the working rollers of the rotating rotary bearing forms the length of the first sheet and the type of folding.
- a sensor is preferably positioned in the transport channel, which, after activation of the paper dispenser, detects the front edge of the inserted paper as it is being advanced and, in accordance with the length input required for the respective sheet unit, a Sheet section controls the further feed up to the first fold.
- the length of a sheet section of a sheet unit can also be determined automatically in that after the insertion of new paper during the feed, both the front edge of the first sheet and the end of the last section are detected by the sensor after the folds and separation have been carried out, whereby the determined length of the individual sheet sections can be used to control other sheet units.
- the distance from the separation position to the second folding position is the same or greater than that - in order to obtain a result that is useful for the application even with a first run maximum required length of a blade section as well as a reference value for the control.
- a mechanical control with a fixed gear between the rotation of the rotary bearing and that of the working rollers can be provided, with the corresponding gear ratio being formed from the length of the paper inserted during filling - which during operation of those Corresponds to the length of the sheet that is ready for the next paper pick-up after a separation has taken place in the transport channel, - more from the distance of the rolling surface of the pivoting nose and the feed length of the paper through the first working roller until it is picked up in the first folding gap.
- an opening flap Arranged in the storage frame is an opening flap which can be moved on a longitudinal axis running transversely to the paper feed direction, in which the pressing device is mounted so that it can move via a pivot axis running parallel to the longitudinal axis of the opening flap, with the opening flap being folded away from the rotary bearing for the insertion of new paper and the transport channel being able to be opened . After inserting the paper, the opening flap is closed and locked.
- the second profile body is provided with profile fingers in a further embodiment variant, which together with the profile body causes a seesaw movement caused by the control cam towards the second work roller and in the paper running in between, create a counter-pull to the transport direction at certain points, which leads to separation.
- a separating web can be provided that covers the second working roller and is arranged parallel to it, the guide surface of which preferably has a structural shape that can engage in the perforation of the paper and which, in cooperation with the pressure device, forms a separating device for folded, perforated paper, the over a control cam of the side window and whose movement is limited by blocking surfaces, jointly bring about a counter-movement supporting the separation by their braking effect during the transport of the paper over the separating web.
- a separating device with a separating web preferably without a guide surface structure, and with a separating device that can be folded up on a bearing axis parallel to the working rollers and counter to the paper feed direction and to the entire width of a sheet is provided in the rotary storage facility aligned, toothed folding knife is provided, which, in cooperation with the second profile body of the pressing device, is brought from a closed position into a position for separating the paper on a defined cam section of the control cam of a side window and against a spring force (not shown) during the rotation of the rotary bearing.
- FIG. 1 shows a perspective partial view of the invention in a device embodiment with the opening flap folded open.
- Fig. 2 shows a perspective partial view of the pressing device with both profile bodies.
- 3 shows a further embodiment of the first profile body of the pressing device.
- Fig. 4 shows a perspective view of the folding beak.
- Fig. 5 is a vertical sectional side view of a pick, fold, separate and sheet length detector in an open position with a paper in the pick position.
- Fig. 6 shows schematically the recording of the paper by the rotary bearing and the Further transport in the transport channel.
- Fig. 7 shows the feed of the paper until it is fed into the first folding gap.
- Fig. 9 shows schematically a separation of a perforated paper during the rotation of the rotary bearing.
- FIG. 10 schematically shows a separation of a non-perforated paper by a folding knife revolving with the rotary bearing.
- FIG 11 shows the second folding process with the feeding of the paper through the pivoting nose into the second folding gap.
- FIG. 12 shows the further transport of the paper after the second folding through the rotary bearing until it is made available.
- FIG. 13 schematically shows the transport of the paper remaining in the transport channel after the separation in cooperation with the pivoting nose and a distance as a reference value for the construction.
- Fig. 14 shows the front view of the folding machine with swivel nose and second work roll.
- FIG. 17 shows an interior view of a modified variant of the two profile bodies of the pressing device.
- FIG. 18 shows a position of the pressing device with the variant according to FIG. 17, the already partially folded sheet of paper being separated from the newly drawn-in sheet of paper.
- Figures 6 to 13 and 18 show the respective positions of the rotary bearing, the pressure device and the swivel nose.
- Fig. 1 shows a perspective view of the folding machine in the form of a barrier-free toilet paper dispenser with a stationary storage frame 1 in which a rotary bearing 2 is rotatably mounted in lateral bearing plates 3, 4 via a bearing axis 2a and is driven via a drive pulley 43, the rotary bearing 2 having three mutually parallel working rollers 17, 18, 19, which, together with the pivot nose 20 also mounted in the rotary bearing 2, a pressure device 6 movably mounted in an opening flap 26, an outer control element 7 and an inner control element 11 with the control cam 12 and a guide roller 23 when recording , transporting, detecting the sheet length, folding, separating and preparing paper 39 interaction.
- the working rollers 17, 18, 19 are provided on their two end faces with bearing shafts 17a, 18a, 19a, which are rotatably mounted in the side disks 8, 9 of the rotary bearing 2.
- the bearing plate 3 is shown broken away.
- the pressing device 6, shown in an open position, comprises a first profile body 28 and a second profile body 36 for interaction with the working rollers 17, 18, 19 of the rotary bearing 2.
- the pressing device 6 is movably mounted in an opening flap 26 via the pivot axis AV 6a and is opposed the spring pressure of counter-supported compression springs (not shown) via the lateral guide rollers 31, 38 of the profile bodies 28, 36, which are guided on the control cam 10 acting as the outer control element 7 and are moved on the bearing axes 31a and 38a.
- the transport roller 29 from the first profile body 28 transports the paper 39 in the transport channel 27 in cooperation with the first working roller 17, with the rounded beak 37 of the second profile body 36 guiding the paper 39 to the first folding gap 44.
- the paper 39 is drawn off the paper roll 41 above the folding machine.
- Fig. 2 shows a side of the pressing device 6 facing the rotary bearing 2 with the opening flap 26 via the pivot axis 26a of which the opening flap 26 can be released together with the pressing device 6 for inserting and refilling the paper 39, and also a sensor 42 for detecting an inserted paper 39.
- the pressing device 6 has a transport roller 29 as the first profile body 28 .
- the pivoting nose 20 shown in FIG. 4 is formed from a nose-shaped element with two lateral bearing pins 21, 22 and a parallel, lateral link roller 23 moving on a bearing axis 23a.
- the pivot nose 20 is arranged in the rotary bearing 2 (see Figures 5 to 13) in such a way that it can be moved radially and counter to an axis 20a running parallel to the working rollers 17, 18, 19 via lateral bearing pins 21 or via a bearing axis of a third working roller 19 the spring pressure of shaped springs 24 via an inner control element 11 (see Figure 1 and 11 to 13) is pivotable.
- FIGS. 10 to 13 show a separating web 13 for separating perforated paper 39, which is arranged in the rotary bearing 2 between the side disks 8, 9 parallel to the bearing axis 2a and interacts with the guide web 5, and in FIGS. 10 to 13 one with the separating web 14 and with the folding knife 15 for cutting off non-perforated paper 39.
- Figures 10 to 13 show as a further embodiment a folding operation based on the fixed gear version.
- Figures 5 to 13 show the successive positions of the rotary bearing 2 of the folding machine during a 360° folding process, as well as the respective positions of the pivot nose 20 and the profile bodies 28, 36 when the paper 39 is inserted, picked up, transported, folded and made available Example of a wrap fold shown.
- the opening flap 26 has been closed, the inserted paper 39 is picked up by its transport roller 29 in cooperation with the first working roller 17 and the first profile body 28 and transported further in the transport channel 27 in the storage rack 1 (see FIGS. 5 and 6).
- the first profile body 28 is limited by the blocking surface 32 of the opening flap 26 in its movement towards the rotary bearing 2 as well as with a closed opening flap 26 to bridge deeper curves sections of the cam 10 (see Fig. 5).
- the direction of rotation of the rotary bearing 2 is that of the transport direction of the paper 39 in the transport channel 27.
- the transport roller 29 from the first profile body 28 transports the paper 39 in the transport channel 27 after passing the third working roller 19 without contact and in cooperation with the first working roller 17, where the round beak 37 of the trailing second profile body 36, the paper 39 leads to the first folding gap 44.
- the first profile body 28 causes a counter-pull in the paper feed when the separating web 13 is rolled over, in cooperation with the second profile body 36 and its blocking surface 34 and by means of the pivot axis AV 6a and a defined section of the control cam 10 .
- the paper 39 which is guided and stretched over the separating web 13 during transport, is separated by the outer structure of the separating web 13 at the perforation of the last sheet and transported further.
- the paper 39 remaining in the transport channel 27 after the separation process is picked up in each case during the renewed rotation of the rotary bearing 2 in cooperation with the first working roll 17 and the first profile body 28 and drawn off the paper roll 41 for further transport (see Fig. 6, 9, 10 , 13, 18).
- the second profile body 36 is moved via a rocking movement caused by a cam 48 of a control cam 10 via the pivot axis 6a to the second working roller 18, with the profile fingers 47 of the second profile body 36 being connected to the working roller 18 selectively produce a counter-pull in the paper 39 running in between and separate this in the area of the freely guided separating section 46 (see FIG. 18).
- the second profile body 36 moves the spring-loaded, toothed jackknife 15 via a lever 16 and via the bearing axis 16a in the rotation of the rotary bearing 2 in a predetermined position Transport channel 27 (see Figure 10).
- the pivoting nose 20 is returned to the starting position via the control cam 12 and the paper 39 is guided and made available with the second folded edge on the front side from the rotary bearing 2 and the storage frame 1 (see FIG. 12).
- the distance 46 from the separating web 13 to the second folding gap 45 defines the maximum length of a sheet section 40 (see FIG. 13).
- Fig. 14 shows a top view of the folding machine and Fig. 15 shows a side view with the side window 8 removed and also shows the arrangement of the shaped spring 24 for positioning the pivoting nose 20.
- FIG 16 shows an oblique view with the side window 8 removed and shows the arrangement of the folding knife 15 and its lever 16.
- Fig. 17 shows an embodiment of a profile body 31 with two profile fingers 47.
- the speed ratio of the drive pulley 43 (FIG. 1) driven by a 1st motor and that driven by a 2nd motor Work rolls can determine the length of the separated sheets of paper 39. If a fixed gear is provided, forced control can be performed by a motor.
- FIGS. 9 and 13 the radial arrow drawn into the transport roller 29 indicates the clamping function for blocking the paper feed for tearing off the perforated paper 39.
- FIG. 10 shows the separating process by cutting the folding knife 15 when unperforated paper 39 is used.
Landscapes
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22723970.4A EP4347459A1 (de) | 2021-05-25 | 2022-05-10 | Falzmaschine für papier und weiches faltgut |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50408/2021A AT525101A1 (de) | 2021-05-25 | 2021-05-25 | Falzmaschine für Papier und weiches Faltgut |
ATA50408/2021 | 2021-05-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022246486A1 true WO2022246486A1 (de) | 2022-12-01 |
Family
ID=81748339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT2022/060163 WO2022246486A1 (de) | 2021-05-25 | 2022-05-10 | Falzmaschine für papier und weiches faltgut |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4347459A1 (de) |
AT (1) | AT525101A1 (de) |
WO (1) | WO2022246486A1 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994008882A1 (de) | 1992-10-19 | 1994-04-28 | Karl Zechner | Stauchfalzmaschine |
WO2006048177A2 (de) | 2004-11-02 | 2006-05-11 | Karl Zechner | Stauchkörper einer stauchfalzmaschine mit parallelen arbeitswalzen |
EP2279684A2 (de) | 2009-06-23 | 2011-02-02 | Hans Georg Hagleitner | Messerführung für eine Vorrichtung zur Ausgabe von Papierabschnitten |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2655909B1 (fr) * | 1989-12-18 | 1992-04-17 | Marinoni Harris Sa | Cylindre d'accumulation pour plieuse d'imprimerie. |
-
2021
- 2021-05-25 AT ATA50408/2021A patent/AT525101A1/de unknown
-
2022
- 2022-05-10 EP EP22723970.4A patent/EP4347459A1/de active Pending
- 2022-05-10 WO PCT/AT2022/060163 patent/WO2022246486A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994008882A1 (de) | 1992-10-19 | 1994-04-28 | Karl Zechner | Stauchfalzmaschine |
WO2006048177A2 (de) | 2004-11-02 | 2006-05-11 | Karl Zechner | Stauchkörper einer stauchfalzmaschine mit parallelen arbeitswalzen |
EP2279684A2 (de) | 2009-06-23 | 2011-02-02 | Hans Georg Hagleitner | Messerführung für eine Vorrichtung zur Ausgabe von Papierabschnitten |
Also Published As
Publication number | Publication date |
---|---|
EP4347459A1 (de) | 2024-04-10 |
AT525101A1 (de) | 2022-12-15 |
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