US20080108492A1 - Buckle Folding Machine - Google Patents

Buckle Folding Machine Download PDF

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Publication number
US20080108492A1
US20080108492A1 US11/666,979 US66697905A US2008108492A1 US 20080108492 A1 US20080108492 A1 US 20080108492A1 US 66697905 A US66697905 A US 66697905A US 2008108492 A1 US2008108492 A1 US 2008108492A1
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US
United States
Prior art keywords
buckling
folded
rollers
roller
article
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
Application number
US11/666,979
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English (en)
Inventor
Karl Zechner
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 US20080108492A1 publication Critical patent/US20080108492A1/en
Abandoned legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43M—BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR
    • B43M3/00—Devices for inserting documents into envelopes
    • B43M3/04—Devices for inserting documents into envelopes automatic

Definitions

  • the invention relates to a buckle folding machine with a plurality of parallel working rollers that are mounted together in a support that is rotationally mounted in the machine frame and that can be rotated by a drive for drawing in, folding, and ejecting the article to be folded, at least one of the rotating working rollers being displaceable.
  • the invention is based on prior art in accordance with WO 1994/008882 [U.S. Pat. No. 5,803,890], which is referenced herewith.
  • this known buckle folding machine four working rollers with the same outside diameter are mounted together in one support that is rotationally mounted in a machine frame.
  • a pair of feed rollers, also mounted in the machine frame, can be controlled via a slide of the support and cooperates with it during the drawing in and when the first fold is made.
  • the support is rotated by a drive, one of the rollers. rotating therewith being displaceable by means of a cam and together with another working roller forming the second fold.
  • the control is performed using the rotating support via an inside cam or in the case of completely electronic control via the working roller to support speed ratio. While the support is rotating, the paper is drawn in, folded, and ejected. The roller working in the drawing-in area is driven in opposition to the paper advance and therefore is covered with a guide body. This cover creates a large equipment diameter.
  • the object of the invention is to significantly reduce the dimensions of the known buckle folding machine and to increase its efficiency.
  • the displaceable working roller as buckling roller is a component of a radially movable buckling body that can be tilted about a longitudinal axis that runs parallel to the working rollers, the buckling body cooperating with the adjacent working rollers, for buckling the article to be folded and for feeding it to a folding gap and using at least one segment of a spreading cam can be forcibly displaced into a position for permitting passage and into a position for buckling the article to be folded.
  • Embodying the displaceable working roller as a buckling body results in about a 20% reduction in size of the structure of the buckle folding machine with four working rollers with the same outside diameter, since because the working roller located in the drawing-in area is omitted, the cover required through the opposing rotary direction is not needed.
  • the buckling body includes a mount and a buckling roller mounted rotatable therein, the mount covering the buckling roller along its longitudinal axis on at least one side.
  • the mount of the radially displaceable buckling body can be displaced between the working rollers with one side that covers the buckling roller during the buckling process in order to feed the article to be folded to a folding gap.
  • Another feature of the invention provides that the mount of the buckling body is mounted via at least two compression springs relative to the mount such that the buckling body can be largely radially displaced against their spring force.
  • the mount of the buckling body is provided with cylindrical bearing pins situated on both ends and on which control rollers are seated, the control rollers displacing the buckling body largely radially and against the force of the compression springs by rolling over a spreading cam that is mounted in the machine frame.
  • the bearing axle of the buckling roller is positioned offset from the bearing axle of the support and to the bearing axle of the control rollers, so that the buckling body can be tilted about the bearing axle of the support and so that also there is a press-fit connection between the buckling roller and a second working roller during the buckling process even for different thicknesses of articles to be folded.
  • Another feature of the invention provides that provided adjacent the buckling body is a guide bar that runs with the support and that partially covers the adjacent working roller and that together with the buckling body forms a feed shaft for the article to be folded.
  • a pair of feed rollers is provided that together with adjacent working rollers feeds the article to be folded into the machine in a known manner and makes the first fold in the article to be folded, the bearing axles of the pair of feed rollers being guided along the end disks of the support that are formed as a control cam.
  • Mechanical control of the folding station is provided by the rotating support for the different types of folds and lengths of the articles to be folded, so that the article to be folded is drawn in, folded, and ejected during the step-wise or continuous rotation of the support.
  • feed rollers are connected to one another via rocker elements, the rocker elements carrying a blocking surface that prevents the article to be folded from breaking out when the first buckling loop is formed between the feed rollers.
  • FIG. 1 is a longitudinal section through the mount of a buckle folding machine with two lateral support bearings and a view of the buckling body.
  • FIG. 2 is a cross section through the buckle folding machine in FIG. 1 .
  • FIG. 3 is an inside view of the buckling body guide in the lateral disk and a top view of and view through the support bearing.
  • FIG. 4 is an end view of the rocker element.
  • FIG. 5 is an end view of the buckling body.
  • FIG. 6 is a longitudinal section through the buckling body in FIG. 5 .
  • FIG. 7 schematically illustrates the position of the buckling body in the buckle folding machine when the article to be folded is advanced unimpeded.
  • FIG. 8 schematically illustrates the position of the buckling body in the folding machine during buckling.
  • FIGS. 9-14 each schematically illustrate the successive roller positions during a 360° folding process, along with each position of the buckling body including the article to be folded.
  • FIGS. 1 through 3 illustrate a buckle folding machine with stationary support bearings ( 12 and 13 ) in which a rotatable support ( 14 ) holds three parallel working rollers ( 15 , 16 , and 17 ) that cooperate with a buckling body ( 1 ), likewise moveably mounted in the support, and a pair of feed rollers ( 19 and 20 ), movably mounted in the lateral support bearings ( 12 and 13 ), when folding an article ( 18 ) to be folded.
  • the working rollers ( 15 , 16 , and 17 ) are provided with bearing axles ( 15 a, 16 a, and 17 a ) that are rotationally mounted in the end disks ( 28 and 29 ) of the support ( 14 ).
  • the support axes of the support are formed as a hollow shaft ( 30 ) and as a solid shaft ( 31 ) and are rotatably carried in the lateral support bearings.
  • the buckling body ( 1 ) illustrated in FIGS. 1 , 2 , 5 , and 6 comprises a mount ( 2 ) ( 2 ) having spring guides ( 3 ) receiving compression springs ( 4 ), lateral mounting pins ( 5 and 6 ), bearing axles ( 7 a and 8 a ) for rotationally mounting control rollers ( 7 and 8 ) and bearing sleeves ( 9 and 10 ) for receiving the bearing axles ( 11 a ) of the buckling roller ( 11 ).
  • the buckling body ( 1 ) is mounted in the support such that its two lateral mounting pins ( 5 and 6 ) and the bearing axles ( 7 a and 8 a ) fit through two openings in the lateral disks ( 28 and 29 ) of the support ( 14 ) formed as buckling body guides ( 33 ), from inside toward the outside, and are forcibly and largely radially displaced by the control rollers ( 7 and 8 ) rolling on a spreading cam ( 34 ) against the spring pressure of compression springs ( 4 ) that are carried in the support on unloading elements ( 43 ).
  • the rounded shape of the mounting pins ( 5 and 6 ) and the offset bearing axles ( 7 a and 8 a ) of the control rollers ( 7 and 8 ) and of the bearing axle ( 11 a ) of the buckling roller ( 11 ) permit a rocking movement about a rocking axis ( 35 ) of the buckling body in the buckling body guides ( 33 ).
  • the spreading cam ( 34 ) is fixed or displaceable on the ends of the support bearings ( 12 and 13 ) that face the support ( 14 ).
  • the support can be rotated manually or by a motor with a mechanical connection (not shown) to the solid shaft ( 31 ) via the support axis. Extending through the hollow shaft ( 30 ) illustrated in FIG.
  • roller drive shaft ( 36 ) that is formed as a solid shaft and that carries on its inner end a drive pinion ( 37 ) for driving the working rollers ( 15 , 16 , and 17 ) and is connected at its outer end via a gear to a motor or to a manually actuated drive apparatus (not shown).
  • the drive pinion ( 37 ) mounted on the inner end of the roller drive shaft meshes with gears ( 38 ) of the working rollers ( 16 and 17 ).
  • the two feed rollers ( 19 and 20 ) that function as drawing-in and buckling rollers have bearing axles ( 19 a, 20 a ) that fit through the lateral disks ( 28 and 29 ) and are pressed by of tension springs (not shown) against the respective working rollers ( 16 , 17 , and 18 ), the control rollers ( 21 , 22 , 23 , 24 ) seated on the bearing axles ( 19 a, 20 a ) rolling on the control cams ( 27 ) of the lateral disks ( 28 and 29 ), these cams being formed as guide surfaces, and while the support ( 14 ) is rotating produce press-fit connections to the working rollers ( 16 , 17 , and 18 ) according to the control program.
  • the leading feed roller ( 19 ) is moved via its bearing axles ( 19 a ) in guides ( 40 ) in the support bearings ( 12 and 13 ).
  • the trailing feed roller ( 20 ) is connected to the leading feed roller via rocker elements ( 25 and 26 ).
  • rocker elements ( 25 and 26 ) prevent the article being folded from breaking out of the buckle folding machine through the gap between the feed rollers ( 19 and 20 ).
  • FIG. 7 and FIG. 8 illustrate a buckling body ( 1 ), forcefully radially displaced by an internal spreading cam ( 34 ) in a buckling body guide ( 33 ) provided in the lateral disks ( 28 and 29 ) against a spring force in the position for unimpeded transport of the article to be folded ( 18 ) and during a folding process.
  • the cylindrical design of the mounting pins ( 5 and 6 ) also enables a rocking movement over the rocker axis ( 35 ) of the buckling body ( 1 ) and thus due to the offset mounting of the bearing axle ( 11 a ) of the buckling roller ( 11 ) a press-fit connection between the buckling roller ( 11 ) and the working roller ( 15 ) with a simultaneous buckling function.
  • FIGS. 9 through 14 illustrate successive positions of the support in the buckle folding machine with the positions of the inventive buckling body ( 1 ) during a complete folding process.
  • different types of folds can be performed by the machine such as for instance a wrap fold or a Z-fold.
  • the process for a wrap fold will now be used as an example.
  • the article ( 18 ) to be folded is fed via an upstream device (not shown here) between the pair of feed rollers ( 19 and 20 ) and the working roller ( 15 ) (see FIG. 9 ).
  • the drive for the support ( 14 ) and for the working rollers ( 15 , 16 , and 17 ) begins to move.
  • the arrows illustrate the directions of rotation for the rollers and for the support in FIGS.
  • the constant translation ratio between working rollers ( 15 , 16 , and 17 ) and the support ( 14 ) causes the working roller ( 16 ) to strike the feed roller ( 19 ) at precisely the position at which, in connection with the oppositely driven working roller ( 15 ) and feed roller ( 20 ) for forming the first fold loop and for the working rollers ( 15 ) and ( 16 ) to draw it in, the article to be folded must be reversed against the advance direction (see FIG. 11 ).
  • the buckling body ( 1 ) which in the meantime is guided largely radially outward by the spreading cam ( 34 ), permits further advance of the article ( 18 ) to be folded with the first fold edge on the front side (see FIG. 12 ).
  • the support ( 14 ) rotates further with the three working rollers ( 15 , 16 , and 17 ) and the buckling body ( 1 ), the latter, after passing the stationary spreading cam ( 34 ), due to the constant translation ratio, is returned by the compression springs ( 4 ) to precisely the location at which the article ( 18 ) to be folded must be returned for forming the second buckle loop in connection with the oppositely driven working roller ( 17 ).
  • the buckle body guides ( 33 ) in the lateral disks ( 28 ) and ( 29 ) the buckle body ( 1 ) is first guided to the working roller ( 15 ) with which the buckle roller ( 11 ) produces a press-fit connection and is driven thereby.
  • FIG. 14 illustrates the working rollers ( 16 ) and ( 17 ) that take up the buckling loop, fold the article ( 18 ) to be folded during further transport, and then eject it.
  • the support ( 14 ) continues to rotate back to the starting position.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
US11/666,979 2004-11-02 2005-10-27 Buckle Folding Machine Abandoned US20080108492A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0183004A AT500981B1 (de) 2004-11-02 2004-11-02 Stauchfalzmaschine
ATA1830/2004 2004-11-02
PCT/EP2005/011514 WO2006048177A2 (de) 2004-11-02 2005-10-27 Stauchkörper einer stauchfalzmaschine mit parallelen arbeitswalzen

Publications (1)

Publication Number Publication Date
US20080108492A1 true US20080108492A1 (en) 2008-05-08

Family

ID=36178186

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/666,979 Abandoned US20080108492A1 (en) 2004-11-02 2005-10-27 Buckle Folding Machine

Country Status (6)

Country Link
US (1) US20080108492A1 (es)
EP (1) EP1827870B1 (es)
CN (1) CN101076455B (es)
AT (1) AT500981B1 (es)
MX (1) MX2007005242A (es)
WO (1) WO2006048177A2 (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120172189A1 (en) * 2009-08-26 2012-07-05 Horizon International Inc. Sheet folding apparatus
US20140018226A1 (en) * 2012-07-12 2014-01-16 Fuji Xerox Co., Ltd. Sheet processing apparatus, and image forming system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT525101A1 (de) 2021-05-25 2022-12-15 Karl Zechner Falzmaschine für Papier und weiches Faltgut

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020616A (en) * 1975-07-08 1977-05-03 Tokyo Shibaura Electric Co., Ltd. Paper sheets processing apparatus
US4218052A (en) * 1977-10-27 1980-08-19 Nils Gustav Carlsson Apparatus for folding a sheet of material an angle of 180°
US4403981A (en) * 1981-02-26 1983-09-13 Hasler Ag Folding machine
US5803890A (en) * 1992-10-19 1998-09-08 Zechner; Karl Buckle folding machine
US6042529A (en) * 1996-03-12 2000-03-28 Francotyp-Postalia Ag & Co. Configuration for folding sheets

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB329161A (en) * 1929-05-13 1930-05-15 Arthur Victor Shaw Improvements in or relating to paper and like sheet folding machines
US4020161A (en) * 1976-03-31 1977-04-26 Stauffer Chemical Company Thiolophosphoramidates and their use as insecticides
US5391138A (en) * 1993-03-24 1995-02-21 The Hedman Company Sheet feeding system for a sheet folding apparatus
US5487718A (en) * 1994-02-25 1996-01-30 Shap, Inc. Folder for sheet paper such as letter-mail, fliers and the like

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020616A (en) * 1975-07-08 1977-05-03 Tokyo Shibaura Electric Co., Ltd. Paper sheets processing apparatus
US4218052A (en) * 1977-10-27 1980-08-19 Nils Gustav Carlsson Apparatus for folding a sheet of material an angle of 180°
US4403981A (en) * 1981-02-26 1983-09-13 Hasler Ag Folding machine
US5803890A (en) * 1992-10-19 1998-09-08 Zechner; Karl Buckle folding machine
US6042529A (en) * 1996-03-12 2000-03-28 Francotyp-Postalia Ag & Co. Configuration for folding sheets

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120172189A1 (en) * 2009-08-26 2012-07-05 Horizon International Inc. Sheet folding apparatus
US9079744B2 (en) * 2009-08-26 2015-07-14 Horizon International Inc. Sheet folding apparatus
US20140018226A1 (en) * 2012-07-12 2014-01-16 Fuji Xerox Co., Ltd. Sheet processing apparatus, and image forming system

Also Published As

Publication number Publication date
MX2007005242A (es) 2007-07-20
WO2006048177A3 (de) 2006-08-10
CN101076455B (zh) 2011-11-23
AT500981A1 (de) 2006-05-15
AT500981B1 (de) 2006-10-15
WO2006048177A2 (de) 2006-05-11
EP1827870A2 (de) 2007-09-05
EP1827870B1 (de) 2012-02-29
CN101076455A (zh) 2007-11-21

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STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION