EP4274793A1 - Plieuse à rouleaux - Google Patents

Plieuse à rouleaux

Info

Publication number
EP4274793A1
EP4274793A1 EP22736700.0A EP22736700A EP4274793A1 EP 4274793 A1 EP4274793 A1 EP 4274793A1 EP 22736700 A EP22736700 A EP 22736700A EP 4274793 A1 EP4274793 A1 EP 4274793A1
Authority
EP
European Patent Office
Prior art keywords
roller
tangent
folder
swiveling arm
hinge
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.)
Pending
Application number
EP22736700.0A
Other languages
German (de)
English (en)
Inventor
Sanjay Madhav DANDEKAR
Datta Hari DESHPANDE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP4274793A1 publication Critical patent/EP4274793A1/fr
Pending legal-status Critical Current

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
    • 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
    • B65H45/142—Pocket-type folders
    • B65H45/147—Pocket-type folders folding rollers therefor
    • 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
    • B65H45/142—Pocket-type 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
    • 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

Definitions

  • the present invention relates to a folding device. More specifically, the present invention relates to a roller folder.
  • rollers are used for various operations in producing different types of articles. Some applications of rollers are seen in rolling operations, folding operations, pressing and the like. Folding operations of paper sheets or paper strips can be performed by a roller folder, which includes at least two rollers.
  • the roller folder is a machine which is used to for performing a cross folding operation on a paper strip or a paper sheet for obtaining intermediate items with cross folds therein.
  • the roller folder (200) includes a first roller (210'), a second roller (214') and a third roller (210c').
  • the roller folder (200) includes a first swiveling arm (210a').
  • the first swiveling arm (210a') is hinged to a frame (100a') by a first hinge (241').
  • a first arm end (210b') of the first swiveling arm (210a') is connected to a first roller centre (211') of the first roller (210').
  • the first roller (210') is swivelable around the first hinge (241').
  • the roller folder (200) includes a second swiveling arm (212').
  • the second swiveling arm (212') is pivotally connected to the frame (100a') at a second hinge (213').
  • a second arm end (215') of the second swiveling arm (212') is connected to the second roller (214') at a second roller center (214a').
  • the second roller (214') is swivelable around the second hinge (213').
  • the second roller centre (214a') of the second roller (214') traces a first locus (290a') as shown in figure 1.
  • the roller folder (200) includes a third swiveling arm (224') is pivotally connected to the frame (100a') at a third hinge (225').
  • a third arm end (227') of the third swiveling arm (224') is connected to the third roller (226') at a third roller center (228').
  • the third roller (226') is rotatable around the third roller center (228').
  • the third roller centre (228') of the third roller (226') traces a second locus (290b) as shown in figure 1.
  • entry gap (251) between a first tangent (22 1') of the first roller (210') and a second tangent (218') of the second roller (214') as shown in figure 1.
  • Intermediate items such as a paper strip or a folded paper strip are introduced between the first roller (210') and the second roller (210c') through the entry gap (251).
  • the entry gap (251) needs to be increased by swiveling the second roller (214') and fixing the second roller (214') at a swivelled position (not shown).
  • the patent document JP3253669B2 discloses a paper folding machine equipped with adjustable folding roller.
  • the invention includes a plurality of folding rollers, lever arm for supporting a lever, pivoting levers movable in directions away from each other against the action of a radial spring force, a second lever arm of the pivoting lever being provided with an adjusting member.
  • the patent document US3790157A discloses a folding machine which includes a primary folder having conveyors for transporting a sheet to folding stations, a secondary folder having a folding station including folding rolls for performing additional folds on said folded sheet, the improvement in said secondary folder comprising means for pre- creasing and urging said sheet toward the nip of said secondary folding rolls and means for moving said creasing shoe into engagement with said sheet along a line parallel to the nip defined by said pair of folding rolls which line is generally normal to a previous fold line.
  • the patent document US589083A provides a machine for closing folded blanks in combination with a propelling mechanism which seizes each blank near its fold, a folding guide having its receiving end arranged obliquely on one side of said propelling mechanism and extending from its receiving end underneath the propelling mechanism longitudinally and spirally to the opposite side thereof.
  • the folding machines discloses in patent documents JP3253669B2, US3790157A and US589083A are complex in structure and likely to cause jamming of folded articles.
  • An object of the present invention is to provide a roller folder.
  • Another object of the present invention is to provide a roller folder, wherein the roller folder is smoother in operation.
  • Still another object of the present invention is to provide a roller folder, which is having less occurrence of jamming of intermediate items between the rollers.
  • Yet another object of the present invention is to provide a roller folder, which is simple in construction and cost effective.
  • the present invention provides a roller folder.
  • the roller folder may include a first roller rotatably connected to a frame of the roller folder.
  • a position of a first roller centre of the first roller can be fixed to the frame.
  • the first roller can be rotatable around the first roller centre.
  • a second swiveling arm can be pivotally connected to the frame at a second hinge.
  • the second swiveling arm may have a second arm end.
  • a second roller can be connected to the second arm end at a second roller centre.
  • the second roller can be rotatable around the second roller centre.
  • the second roller can be swivelable around the second hinge between a first position and a second position.
  • the first roller can have a first radius and the second roller can have a second radius.
  • the first radius can be extending towards the second roller and the second radius can be extending towards the first roller.
  • the first roller can have a first tangent and the second roller can have a second tangent.
  • the first tangent can be perpendicular to the first radius and the second tangent can be perpendicular to the second radius.
  • the first position the first tangent and the second tangent can have a predefined first parallel distance therebetween.
  • the first tangent and the second tangent can have a predefined second parallel distance therebetween.
  • the second swiveling arm can be extended either non-parallel or non- perpendicular to the first tangent or both.
  • the second swiveling arm can be extended at an angle from the first tangent in an anticlockwise direction.
  • the roller folder may include a third swiveling arm pivotally connected to the frame at a third hinge.
  • the third swiveling arm can have a third arm end and the third roller can have a third roller centre.
  • the third roller is rotatable around the third roller centre.
  • the third roller can be connected to the third arm end at the third roller centre.
  • the third roller can be swivelable around the third hinge between a third position and a fourth position.
  • the third roller can have a third tangent and the second roller can have a fourth tangent.
  • the third tangent and the fourth tangent can be perpendicular to the first tangent.
  • the third tangent can be at a predefined third parallel distance from the fourth tangent when the second roller is at the first position.
  • the third tangent and the fourth tangent can have a predefined fourth parallel distance therebetween when the second roller is at the first position.
  • the third swiveling arm can be extended either non-parallel or non-perpendicular to the fourth tangent or both.
  • the third swiveling arm can extended at an angle from the first tangent in a clockwise direction when the third roller is at the third position.
  • a first swiveling arm can be pivotally connected to the frame at a first hinge.
  • the first swiveling arm can have a first arm end attached at the first roller centre of a first roller.
  • the first roller can be swivalable around the first hinge.
  • the second hinge can be connected to the frame at a position between a fifth position and a sixth position.
  • the second swiveling arm can be anchored to the frame in an orientation non-parallel and non-perpendicular to the first tangent or both between the fifth position and the sixth position.
  • the position of the first roller centre is fixed to the frame.
  • the fifth position can be an angular position of the second swiveling arm at an angle from the first tangent and the sixth position can be an angular position of the second swiveling arm at an angle from the first tangent.
  • the third hinge can be connected to the frame at any position between a seventh position to an eighth position.
  • the third swiveling arm can be anchored to the frame in an orientation non-parallel or non-perpendicular to the first tangent or both to the frame between the seventh position and the eighth position.
  • the seventh position can be an angular position of the third swiveling arm at an angle from the first tangent and the eighth position can be an angular position of the third swiveling arm at an angle from the first tangent.
  • the roller folder can include a first slot configured in the frame.
  • the first slot can extend from the fifth position to the sixth position.
  • the second hinge can be movable within the first slot between the fifth position and the sixth position.
  • the second hinge can be movable within the first slot between the fifth position and the sixth position.
  • the second hinge can be anchored at a position between the fifth position to a sixth position by a first anchoring mechanism.
  • a second slot can be configured in the frame.
  • the second slot can extend from the seventh position to the eighth position.
  • the third hinge can be movable within the second slot between the seventh position and the eighth position and vice versa.
  • the second hinge can be fixed at a position between the seventh position and the eighth position by a second anchoring mechanism.
  • the second hinge can be anchored within the second slot so that the third swiveling arm can be oriented non-parallel or non-perpendicular to the first tangent or both.
  • a first biasing member can be attached to the second swiveling arm.
  • the first biasing member can restore the second swiveling arm at the first position.
  • a second biasing member can be attached to the third swiveling arm.
  • the second biasing member may restore the second swiveling arm at the third position.
  • a folded article can enter through the first parallel distance between the first roller and the second roller and further pass through the third parallel distance between the second roller and the third roller.
  • the folded article may enter through the second parallel distance between the first roller and the second roller and further pass through the fourth parallel distance between the second roller and the third roller.
  • FIG. 1 showing a schematic front view of an existing roller folder (prior art).
  • Figure 2a shows a schematic front view of a roller folder in accordance with the present invention
  • Figure 2b shows another schematic front view of figure 2a with a second roller at a second position and a third roller at a fourth position in accordance with the present invention
  • Figure 3a shows a schematic front view of an embodiment of a roller folder in accordance with the present invention
  • Figure 3b shows a schematic front view of figure 3a with a second roller at a second position and a third roller at a fourth position in accordance with the present invention
  • Figure 4a shows a schematic front view of one more embodiment of a roller folder in accordance with the present invention
  • Figure 4b shows a schematic front view of one more embodiment of a roller folder in accordance with the present invention.
  • Figure 5a shows a schematic front view of one more embodiment of a roller folder in accordance with the present invention
  • Figure 5b shows a schematic front view of one more embodiment of a roller folder in accordance with the present invention
  • Figure 6a shows a schematic front view of one more embodiment of a roller folder in accordance with the present invention
  • Figure 6b shows a schematic front view of one more embodiment of a roller folder in accordance with the present invention
  • Figure 7 shows a schematic front view of one more embodiment of a roller folder in accordance with the present invention.
  • the present invention provides a roller folder for performing folding or pressing operation of articles such as paper strips or paper folds.
  • the roller folder prevents the occurrence of jamming of folded articles within the rollers, thereby results in smoother folding operation. Also, the roller folder prevents wear and tear of the folded articles due to excess friction between the rollers and folded articles.
  • the roller folder (100c) includes a first roller (210) rotatably connected to a frame (100a) of the roller folder (100c) as shown in figures 2a and 2b.
  • the frame (100a) can be a rigid supporting member for positioning operating rollers in the roller folder (100c).
  • a position of a first roller centre (211) of the first roller (210) is fixed to the frame (100a) as shown in figures 2a and 2b.
  • the first roller (210) is rotatable around the first roller centre (211).
  • the first roller (210) rotates around an X axis (400) as shown in figure 2a and 2b.
  • the X axis (400) is oriented perpendicularly outwards from the plane of figure 2a and 2b.
  • a second swiveling arm (212) is pivotally connected to the frame (100) at a second hinge (213) as shown in figure 2a and 2b.
  • the second swiveling arm (212) has a second arm end (215).
  • a second roller (214) is connected to the second arm end (215) at a second roller centre (214a).
  • the second roller (214) is rotatable around the second roller centre (214a) as shown in figure 2a and 2b.
  • the second roller (214) rotates around the X axis (400) passing through the second roller centre (214a) as shown in figure 2a and 2b.
  • the second roller (214) is swivelable around the second hinge (213) between a first position (216) and a second position (217) as shown in figures 2a and 2b.
  • the second swiveling arm (212) is swiveled between the first position (216) and the second position (217) by applying a force Fi on an extension (212a) of the second swiveling arm (212) through a manual effort or a linear actuator or a rotary actuator connecting and operating accordingly as shown in figure 2b.
  • the first position (216) of the second roller (214) is shown in figure 2a and the second position (217) of the second roller (214) is shown in figure 2b.
  • the first roller (210) has a first radius (222) and the second roller (214) has a second radius (219) as shown in figures 2a and 2b.
  • the first radius (222) is extending towards the second roller (214) and the second radius (219) is extending towards the first roller (210) as shown in figures 2a and 2b.
  • the first roller (210) has a first tangent (221) and the second roller (214) has a second tangent (218) as shown in figure 2a and 2b.
  • the first tangent (221) is perpendicular to the first radius (222) and the second tangent (218) is perpendicular to the second radius (219) as shown in figure 2a and 2b.
  • the first tangent (221) and the second tangent (218) has a predefined first parallel distance (220) therebetween.
  • the first tangent (221) and the second tangent (218) has a predefined second parallel distance (223) therebetween.
  • the magnitude of the second parallel distance (223) is more than the first parallel distance (220).
  • the second swiveling arm (212) when the second roller (214) is at any position between the first position (216) and the second position (217), the second swiveling arm (212) is extended either non-parallel or non-perpendicular to the first tangent (221) or both as shown in figure 2a and 2b.
  • the second swiveling arm (212) is extended at an angle (0 C ) from the first tangent (221) in an anticlockwise direction as shown in figure 2a and 2b.
  • the second roller centre (214a) traces a third locus (290c) as shown in figure 7.
  • the roller folder (100c) includes a third swiveling arm (224) is pivotally connected to the frame (100a) at a third hinge (225) as shown in figures 2a and 2b.
  • the third swiveling arm (224) is having a third arm end (227) and the third roller (226) has a third roller centre (228) as shown in figures 2a.
  • the third roller (226) is rotatable around the third roller centre (228) as shown in figure 2a.
  • the third roller (226) is rotatable around the X axis (400) passing through the third roller centre (228) as shown in figure 2a and 2b.
  • the third roller (226) is connected to the third arm end (227) at the third roller centre (228).
  • the third roller (226) is swivelable around the third hinge (225) between a third position (229) and a fourth position (230).
  • the third swiveling arm (224) is swiveled between the third position (229) and the fourth position (230) by applying a force F2 on an extension (224a) of the third swiveling arm (224) through a manual effort or a linear actuator or a rotary actuator as shown in figure 2b.
  • the linear actuator can be a pneumatic or a hydraulic actuator and the rotary actuator can be a servomotor or a stepper motor.
  • the third position (229) of the third roller (226) is shown in figure 2a and the fourth position (230) of the third roller (226) is shown in figure 2b.
  • the third roller (226) has a third tangent (231) and the second roller (214) has a fourth tangent (233) as shown in figure 2a.
  • the third tangent (231) and the fourth tangent (233) are perpendicular to the first tangent (221) as shown in the figure 2a.
  • the third tangent (231) is at a predefined third parallel distance (232) from the fourth tangent (233) when the second roller (214) is at the first position (216) as shown in figure 2a.
  • the third tangent (231) and the fourth tangent (233) has a predefined fourth parallel distance (234) therebetween when the second roller (214) is at the first position (216) as shown in figure 2b.
  • the magnitude of the fourth parallel distance (234) is more than the third parallel distance (232).
  • the third swiveling arm (224) is extended either non-parallel or non-perpendicular to the fourth tangent (233) or both as shown in figures 2a and 2b.
  • the third swiveling arm (224) is extended at an angle (0 d ) from the first tangent (221) in clockwise direction when the third roller (226) is at the third position (229) as shown in figures 2a and 2b.
  • the third roller centre (228) traces a fourth locus (290d).
  • FIG 3a and 3b a schematic front view of an embodiment of the roller folder (100d) in accordance with the present invention is illustrated.
  • a first swiveling arm (210a) is pivotally connected to the frame (100a) at a first hinge (241) as shown in figure 3a and 3b.
  • the first swiveling arm (210a) is having a first arm end (210b) attached at the first roller centre (211) of a first roller (210).
  • the first roller (210) is swivalable around the first hinge (241).
  • the first roller (210) is rotatable around the first roller centre (211).
  • the first roller (210) rotates around an X axis (400) as shown in figures 3a and 3b.
  • the X axis (400) is oriented perpendicularly outwards from the plane of figures 3a and 3b.
  • the second swiveling arm (212) is pivotally connected to the frame (100) at the second hinge (213) as shown in figure 3a and 3b.
  • the second swiveling arm (212) has the second arm end (215).
  • the second roller (214) is connected to the second arm end (215) at the second roller centre (214a).
  • the second roller (214) is rotatable around the second roller centre (214a) as shown in figure 3a and 3b.
  • the second roller (214) rotates around the X axis (400) passing through the second roller centre (214a) as shown in figure 3a and 3b.
  • the second roller (214) is swivelable around the second hinge (213) between the first position (216) and the second position (217).
  • the second swiveling arm (212) is swiveled between the first position (216) and the second position (217) by applying a force Fi on the extension (212a) of the second swiveling arm (212) through a manual effort or a linear actuator or a rotary actuator connecting and operating accordingly.
  • the first position (216) of the second roller (214) is shown in figure 3a and the second position (217) of the second roller (214) is shown in figure 3b.
  • the first roller (210) has the first radius (222) and the second roller (214) has the second radius (219) as shown in figure 3a and 3b.
  • the first radius (222) is extending towards the second roller (214) and the second radius (219) is extending towards the first roller (210) as shown in figure 3a.
  • the first roller (210) has the first tangent (221) and the second roller (214) has the second tangent (218) as shown in figure 3a and 3b.
  • the first tangent (221) is perpendicular to the first radius (222) and the second tangent (218) is perpendicular to the second radius (219) as shown in figure 3a.
  • the first tangent (221) and the second tangent (218) has the predefined first parallel distance (220) therebetween.
  • the first tangent (221) and the second tangent (218) has a predefined second parallel distance (220) therebetween.
  • the magnitude of the second parallel distance (223) is more than the first parallel distance (220).
  • the second swiveling arm (212) when the second roller (214) is at any position between the first position (216) and the second position (217), the second swiveling arm (212) is extended either non-parallel or non-perpendicular to the first tangent (221) or both as shown in figure 3a and 3b.
  • the second swiveling arm (212) is extended at an angle (0 C ) from the first tangent (221) in an anticlockwise direction as shown in figure 3a and 3b.
  • the second roller centre (214a) traces the third locus (290c) as shown in figure 7.
  • the roller folder (100d) includes the third swiveling arm (224) pivotally connected to the frame (100a) at the third hinge (225) as shown in figures 3a and 3b.
  • the third swiveling arm (224) is having the third arm end (227) and the third roller (226) has the third roller centre (228) as shown in figures 3a, 3b and 3c.
  • the third roller (226) is rotatable around the third roller centre (228).
  • the third roller (226) is rotatable around the X axis (400) passing through the third roller centre (228) as shown in figure 3a and 3b.
  • the third roller (226) is connected to the third arm end (227) at the third roller centre (228).
  • the third roller (226) is swivelable around the third hinge (225) between the third position (229) and the fourth position (230).
  • the third swiveling arm (224) is swiveled between the third position (229) and the fourth position (230) by applying a force F2 on the extension (224a) of the third swiveling arm (224) through a manual effort or a linear actuator or a rotary actuator.
  • the linear actuator can be a pneumatic or a hydraulic actuator and the rotary actuator can be a servomotor or a stepper motor.
  • the third position (229) of the third roller (226) is shown in figure 3a and the fourth position (230) of the third roller (226) is shown in figure 3b.
  • the third roller (226) has the third tangent (231) and the second roller (214) has the fourth tangent (233) as shown in figure 3a and 3b.
  • the third tangent (231) and the fourth tangent (233) are perpendicular to the first tangent (221) as shown in figure 3a and 3b.
  • the third tangent (231) is at the predefined third parallel distance (232) from the fourth tangent (233) when the second roller (214) is at the first position (216) as shown in figure 3 a.
  • the third tangent (231) and the fourth tangent (233) has the predefined fourth parallel distance (234) when the second roller (214) is at the first position (216) as shown in the figure 3b.
  • the magnitude of the fourth parallel distance (234) is more than the third parallel distance (232).
  • the third swiveling arm (224) is extended at an angle (0 d ) from the first tangent (221) in the clockwise direction when the third roller (226) is at the third position (229) as shown in figures 3a and 3b.
  • the third roller centre (228) traces the fourth locus (290d).
  • roller folder (100g) in accordance with the present invention is illustrated.
  • the second hinge (213) is connected to the frame (100a) at a position between a fifth position (300a) to a sixth position (300b) as shown in figure 5a.
  • the second swiveling arm (212) is anchored to the frame (100a) in an orientation non-parallel and non-perpendicular to the first tangent (221) or both between the fifth position (300a) and the sixth position (300b).
  • the position of the first roller centre (211) is fixed to the frame (100a) as shown in figure 5a.
  • the fifth position (300a) is an angular position of the second swiveling arm (212) at an angle ( ⁇ a) from the first tangent (221) and the sixth position (300b) is an angular position of the second swiveling arm (221) at an angle ( ⁇ b) from the first tangent (221) as shown in figure 5 a.
  • the movement of the second swiveling arm (212) between the fifth position (300a) to the sixth position (300b) by manual effort or a linear actuator or a rotary actuator.
  • the third hinge (225) is connected to the frame (100a) at any position between a seventh position (310a) to an eighth position (310b) as shown in figure 5a.
  • the third swiveling arm (224) is anchored to the frame (100a) in an orientation non-parallel or non-perpendicular to the first tangent (221) or both to the frame (100a) between the seventh position (310a) to the eighth position (310b).
  • the seventh position (310a) is an angular position of the third swiveling arm (224) at an angle ( ⁇ e) from the first tangent (221) and the eighth position (310b) is an angular position of the third swiveling arm (224) at an angle ( ⁇ f) from the first tangent (221) as shown in figure 5 a.
  • the roller folder (100g) includes a first slot (300) configured in the frame (100a) as shown in figure 5a.
  • the first slot (300) extends from the fifth position (300a) to the sixth position (300b) as shown in figure 5a.
  • the second hinge (213) is movable within the first slot (300) between the fifth position (300a) and the sixth position (300b).
  • the second hinge (213) is movable within the first slot (300) between the fifth position (300a) to the sixth position (300b).
  • the second hinge (213) is anchored at a position between the fifth position (300a) to a sixth position (300b) by a first anchoring mechanism (235) as shown in figure 5a.
  • the first anchoring mechanism (235) is a bolt or a screw or a plunger lock or any retaining mechanism known to the person skilled in the art.
  • a second slot (310) is configured in the frame (100a) as shown in figure 5a.
  • the second slot (310) extends from the seventh position (310a) to the eighth position (310b).
  • the third hinge (225) is movable within the second slot (310) between the seventh position (310a) to the eighth position (300b) and vice versa.
  • the second hinge (225) is fixed at a position between the seventh position (310a) and the eighth position (310b) by a second anchoring mechanism (236).
  • the second hinge (225) is anchored within the second slot (310) so that the third swiveling arm (224) is oriented non-parallel or non-perpendicular to the first tangent (221) or both.
  • roller folder (100h) in accordance with the present invention is illustrated.
  • the second hinge (213) is connected to the frame (100a) at a position between the fifth position (300a) and the sixth position (300b) as shown in figure 5b.
  • the second swiveling arm (212) is anchored to the frame (100a) in an orientation non-parallel and non-perpendicular to the first tangent (221) or both between the fifth position (300a) and the sixth position (300b).
  • the first swiveling arm (210a) is pivotally connected to the frame (100a) at the first hinge (241) in figure 5b.
  • the first swiveling arm (210a) is having the first arm end (210b) attached at the first roller centre (211) of the first roller (210).
  • the first roller (210) is swivalable around the first hinge (241).
  • the fifth position (300a) is an angular position of the second swiveling arm (212) at the angle ( ⁇ a) from the first tangent (221) and the sixth position (300b) is an angular position of the second swiveling arm (221) at the angle ( ⁇ b) from the first tangent (221) as shown in figure 5b.
  • the movement of the second swiveling arm (212) between the fifth position (300a) to the sixth position (300b) by manual effort or a linear actuator or a rotary actuator.
  • the third hinge (225) is connected to the frame (100a) at any position between the seventh position (310a) to the eighth position (310b) as shown in figure 5b.
  • the third swiveling arm (224) is anchored to the frame (100a) in an orientation non-parallel or non-perpendicular to the first tangent (221) or both to the frame (100a) between the seventh position (310a) to the eighth position (310b).
  • the seventh position (310a) is an angular position of the third swiveling arm (224) at the angle ( ⁇ e) from the first tangent (221) and the eighth position (310b) is an angular position of the third swiveling arm (224) at the angle ( ⁇ f) from the first tangent (221) as shown in figure 5b.
  • the roller folder (100h) includes the first slot (300) configured in the frame (100a) as shown in figure 5b.
  • the first slot (300) extends from the fifth position (300a) to the sixth position (300b) as shown in figure 5b.
  • the second hinge (213) is movable within the first slot (300) between the fifth position (300a) and the sixth position (300b).
  • the second hinge (213) is movable within the first slot (300) between the fifth position (300a) and the sixth position (300b).
  • the second hinge (213) is anchored at the position between the fifth position (300a) and the sixth position (300b) by the first anchoring mechanism (235) as shown in figure 5b.
  • the first anchoring mechanism (235) is a bolt or a screw or a plunger lock or any retaining mechanism known to the person skilled in the art.
  • the second slot (310) is configured in the frame (100a) as shown in figure 5b.
  • the second slot (310) extends from the seventh position (310a) to the eighth position (310b).
  • the third hinge (225) is movable within the second slot (310) between the seventh position (310a) and the eighth position (300b) and vice versa.
  • the second hinge (225) is fixed at a position between the seventh position (310a) and the eighth position (310b) by the second anchoring mechanism (236).
  • the second hinge (225) is anchored within the second slot (310) so that the third swiveling arm (224) is oriented non-parallel or non-perpendicular to the first tangent (221) or both.
  • FIG 4a an embodiment of the roller folder (100e) in accordance with the present invention is illustrated.
  • a first biasing member (237) is attached to the second swiveling arm (212) as shown in figure 4a.
  • the first biasing member (237) restores the second swiveling arm (212) at the first position (216).
  • a second biasing member (238) is attached to the third swiveling arm (212) as shown in figure 4a.
  • the position of the first roller centre (211) is fixed to the frame (100a) as shown in figure 4a.
  • the second biasing member (237) restores the second swiveling arm (212) at the third position (229).
  • the first biasing member (237) and the second biasing member (238) are springs or bellows or any elastic member known to the person skilled in the art.
  • the first swiveling arm (210a) is pivotally connected to the frame (100a) at the first hinge (241) in figure 4b.
  • the first swiveling arm (210a) is having the first arm end (210b) attached at the first roller centre (211) of the first roller (210).
  • the first roller (210) is swivalable around the first hinge (241).
  • the first biasing member (237) is attached to the second swiveling arm (212) as shown in figure 4b.
  • the first biasing member (237) restores the second swiveling arm (212) at the first position (216).
  • the second biasing member (238) is attached to the third swiveling arm (212) as shown in figure 4b.
  • the second biasing member (237) restores the second swiveling arm (212) at the third position (229).
  • the first biasing member (237) and the second biasing member (238) are springs or bellows or any elastic member known to the person skilled in the art.
  • the folded article enters through the second parallel distance (223) between the first roller (210) and the second roller (214) and further passes through the fourth parallel distance (234) between the second roller (214) and the third roller (226).
  • the first roller (210), the second roller (214) and the third roller (226) are rotatable around a Y axis passing through the first roller centre (211), the second roller centre (214a) and the third roller centre (228) respectively as shown in figures 2a, 2b, 3a, 3b, 4a, 4b, 5a, and 5b.
  • first roller (210), the second roller (214) and the third roller (226) are rotatable around a Z axis passing through the first roller centre (211), the second roller centre (214a) and the third roller centre (228) respectively as shown in figures 2a, 2b, 3a, 3b, 4a, 4b, 5a, and 5b.
  • the roller folder (100i) includes a first driving gear (410) and second driving gear (411) arranged over the frame (100a) as shown in figure 6a.
  • the roller folder (100i) includes a fourth roller (412) arranged with the frame (100a) as shown in figure 6a.
  • the fourth roller (412) is fixed to the frame (100a).
  • the fourth roller (412) is swivalable.
  • the position of the first roller centre (211) is fixed to the frame (100a) as shown in figure 6a.
  • the first driving gear (410) is arranged with the first roller (210) and the third roller (226).
  • the first driving gear (410) is fixed in contact with the first roller (214) and the third roller (226) so that even the rollers (210 and 226) are swivelled, meshing between the rollers (210 and 226) and the first driving gear (410) is retained (maintained).
  • the second driving gear (411) is arranged with the fourth roller (412) and the second roller (214) as shown in figure 6a.
  • the second driving gear (411) is fixed in contact with the fourth roller (412) and the second roller (214) so that even the rollers (412 and 214) are swivelled, meshing between the rollers (412 and 214) and the second driving gear (411) is retained (maintained).
  • the roller folder (100j) includes the first driving gear (410) and the second driving gear (411) arranged over the frame (100a) as shown in figure 6b.
  • the roller folder (100j) includes the fourth roller (412) arranged with the frame (100a) as shown in figure 6b.
  • the fourth roller (412) is fixed to the frame (100a).
  • the fourth roller (412) is swivalable.
  • the first driving gear (410) is arranged with the first roller (210) and the third roller (226).
  • the first driving gear (410) is fixed in contact with the first roller (214) and the third roller (226) so that even the rollers (210 and 226) are swivelled, meshing between the rollers (210 and 226) and the first driving gear (410) is retained (maintained).
  • the second driving gear (411) is arranged with the fourth roller (412) and the second roller (214) as shown in figure 6b.
  • the second driving gear (411) is fixed in contact with the fourth roller (412) and the second roller (214) so that even the rollers (412 and 214) are swivelled, meshing between the rollers (412 and 214) and the second driving gear (411) is retained (maintained).
  • the present invention has the advantage of providing the roller folder (100c, 100d, 100e, 100f, 100g, 100h, 100i and 100j) which eliminates the jamming of intermediate items such as paper strips or paper folds within the rollers (210, 214 and 226), thereby provides a smoother folding operation and reduces wear and tear of intermediate items as well as rollers. Further, the device (100) is smoother on the operation. Furthermore, the device (100) is having less occurrence of jamming of intermediate items compared to existing roller devices.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

Titre : Plieuse à rouleaux La présente invention concerne une plieuse à rouleaux (100c). Des plieuses à rouleaux existantes ne fournissent pas de marge d'entrée suffisante pour l'entrée d'articles intermédiaires dans la plieuse à rouleaux. La plieuse à rouleaux comprend des bras pivotants (212 ou 224) qui sont orientés de manière angulaire à partir d'une première tangente (221), lesquels augmentent une marge d'entrée (220) pour les articles intermédiaires tels que des bandes de papier. Dans certains modes de réalisation, des éléments de sollicitation (237 ou 238) ramènent en position les bras pivotants (212 ou 224) pendant une opération de pliage. Dans d'autres modes de réalisation, des fentes (300 ou 310) sont prévues pour modifier l'orientation angulaire des bras pivotants (212 ou 224). L'orientation angulaire des bras pivotants (212 ou 224) réduit l'apparition de bourrage d'articles intermédiaires pendant la réalisation d'opérations de pliage, de pressage.
EP22736700.0A 2021-01-11 2022-01-10 Plieuse à rouleaux Pending EP4274793A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202121001185 2021-01-11
PCT/IB2022/050141 WO2022149101A1 (fr) 2021-01-11 2022-01-10 Plieuse à rouleaux

Publications (1)

Publication Number Publication Date
EP4274793A1 true EP4274793A1 (fr) 2023-11-15

Family

ID=82357256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22736700.0A Pending EP4274793A1 (fr) 2021-01-11 2022-01-10 Plieuse à rouleaux

Country Status (3)

Country Link
US (1) US20240067490A1 (fr)
EP (1) EP4274793A1 (fr)
WO (1) WO2022149101A1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3447301A1 (de) * 1984-02-17 1985-09-05 Mathias Bäuerle GmbH, 7742 St Georgen Stauchfalzmaschine
DE19543152C2 (de) * 1995-11-18 1999-09-02 Kodak Ag Vorrichtung zum Falten von Blättern

Also Published As

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US20240067490A1 (en) 2024-02-29
WO2022149101A1 (fr) 2022-07-14

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