US3786979A - Stitching machine for a stack of sheets - Google Patents

Stitching machine for a stack of sheets Download PDF

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Publication number
US3786979A
US3786979A US00231252A US3786979DA US3786979A US 3786979 A US3786979 A US 3786979A US 00231252 A US00231252 A US 00231252A US 3786979D A US3786979D A US 3786979DA US 3786979 A US3786979 A US 3786979A
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United States
Prior art keywords
stitching
stack
clinching anvil
transporting
adjusting
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.)
Expired - Lifetime
Application number
US00231252A
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English (en)
Inventor
H Muller
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.)
MULLER-MARTINI CORP A CORP OF NY
Mueller Martini Druckverarbeitungs Systeme AG
Original Assignee
Grapha Maschinenfabrik Hans Mueller AG
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 Grapha Maschinenfabrik Hans Mueller AG filed Critical Grapha Maschinenfabrik Hans Mueller AG
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Publication of US3786979A publication Critical patent/US3786979A/en
Assigned to GRAPHA HOLDING AG, HERGISWILL, SWITZERLAND A CORP. OF SWITZERLAND reassignment GRAPHA HOLDING AG, HERGISWILL, SWITZERLAND A CORP. OF SWITZERLAND ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GRAPHA MASCHINENFABRIK HANS MULLER AG, A CORP. OF SWITZERLAND
Assigned to MULLER-MARTINI CORP., A CORP OF NY. reassignment MULLER-MARTINI CORP., A CORP OF NY. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GRAPHA HOLDING AG, A CORP OF SWITZERLAND
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42B—PERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES OR SIGNATURES OR PERMANENTLY ATTACHING OBJECTS THERETO
    • B42B4/00—Permanently attaching together sheets, quires or signatures by discontinuous stitching with filamentary material, e.g. wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/32—Saddle-like members over which partially-unfolded sheets or signatures are fed to signature-gathering, stitching, or like 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
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/30—Chains
    • B65H2404/32—Saddle conveyor

Definitions

  • ABSTRACT A stitching machine for stitching a folded stack of sheets along a fold line by a stitching head cooperating with a clinching anvil, has two conveyors located on opposite sides of the clinching anvil for transporting and carrying the angularly spread stack portions, while the inside of the fold line slides on the clinching anvil whose position is adjusted to the thickness of the stack. Manual means are provided for raising and lowering the conveyors with the stacks also in accordance with the thickness of the transported stacks and with the adjusted position of the clinching anvil.
  • the present invention relates to a stitching machine by which folded brochures are stitched along a fold line between at least one stitching head and an associated clinching anvil whose height can be adjusted, and which is located between two transporting carriers or conveyors.
  • the stitching heads are mounted in a manner which does not permit vertical adjustment.
  • the apparatus is adjusted to the thickness of the folded stacks of sheets, such as brochures, by adjusting the height of the respective clinching anvils which are located between the two carriers or conveyors.
  • the two conveyor chains run on guide bars which are fixedly secured to the frame of the machine, and cannot be adjusted in vertical direction.
  • the clinching anvil When extremely thick stacks of sheets are to be stitched, the clinching anvil is located low between the two conveyors. Consequently, the clinching anvil cannot exactly center the folded stacks of sheets along the fold line, which results in improperly stitched and stapled brochures. If the paper is thin, the cover sheet may be torn during the stitching operation. Thin stacks are upwardly rejected at high speeds due to the fact that the clinching anvils are adjusted to a position which is too high as compared with the vertical position of the conveyors.
  • the present invention provides a transporting carrier or conveyors which at least in the region of the clinching anvil, are adjustable in vertical direction to a higher and lower position, depending on the thickness of the transported and stitched stack.
  • Manually operated means are provided for raising or lowering the transporting carrier for the folded stacks, such as brochures.
  • FIG. 1 is a front elevation, partially in section, illustrating a stitching machine in accordance with the invention
  • FIG. 2 is a cross-sectional view taken on line Il-II in FIG. 1;
  • FIG. 3 is a cross-sectional view taken on line IIIIII in FIG. 1.
  • FIG. 1 illustrates a stitching machine for stitching folded stacks of sheets along the fold line, as substantially described in Swiss Pat. No. 337,177.
  • a motor 2 is mounted in the machine housing 1, and drives over a belt 3, a wheel 4 which is fixedly secured to a shaft 5 .so that shaft 5 is rotated.
  • Two chain wheels 6 are secured to drive shaft 5 which drive two endless conveyor chains 7.
  • the upper runs of conveyors 7 are guided along bars 8 and 9, and the lower runs are guided by rigid bars 10 and 11.
  • Bar 9 consists of several articulated bar portions 91, 92, 93 of which the centrally located bar portion 92 is visible in the sections of FIGS. 2 and 3.
  • the bar 8 is constructed in the same manner so that the central bar portion 82 appears in FIGS. 2 and 3.
  • the supporting frame of the machine carries a fixed guide pin 33 engaging a slot 34 in bar portion 91 which has a guide pin 35 located in a slot 36 of bar portion 92.
  • Bar portion 93 is pivotable about a fixed pivot pin 37, and has a fixed guide pin 38 engaging a slot 39 in bar portion 92.
  • the several pin-and-slot connections permit raising and lowering of the central bar portion 92 and in a corresponding manner, of the central bar portion 82 of the bar means 8 to move these bar portions for instance between the positions respectively shown in full and dash-dot lines in FIG. 1.
  • the conveyors are formed by connected carrier links 12, best seen in FIG. 2, which carry a stack of folded sheets 13 forming a brochure or booklet, at a constant speed in the direction of the arrow F under the stitching heads 14 of a stitching apparatus 140, and over corresponding clinching anvils 22 which have upper edges slidingly engaging the central foldline of the respective stack 13 on the inner surface of the lowermost sheet.
  • Wheel 4 carries an eccentric pin 16 connected by a rod 17 with the stitching apparatus 140, and reciprocating the same along a stationary guide rail means 21 parallel to the conveyor chains 7.
  • a double-armed lever 19 is pivotally mounted on a stationary pin 18 and is articulated at one end to a rod 20 articulately connected to the pin 16.
  • the other end of the lever 19 is connected with the stitching heads 14 which are mounted in the stitching apparatus for vertical movement. Consequently, the stitching heads 14 carry out a reciprocating motion and additionally a cyclical up-and-down movement, as described in the Swiss Pat. No. 337,177.
  • Each stitching head arrives at its lowest position when the entire stitching apparatus with the stitching heads 14 moves substantially at constant speed equal to the speed at which the stacks of sheets 13 are transported by the carrier links 12 of the conveyors 7.
  • Each carrier link 12 engages one of the folded stacks of sheets 13, and the distance between the carriers 12 is selected so that the wheel 4 performs one revolution while one stack of folded sheets 13 is moved through the stitching apparatus.
  • the carriers 12 are adjusted so that the portion of the spine or back of the folded stack of sheets, is located under the respective associated stitching head 14, when the respective stitching head 14 arrives in the lowest position thereof in which staples are driven through the spine of the folded stack of sheets, and clinched by the clinching anvil 22.
  • Each stitching head 14 cooperates with a clinching anvil 22 by which the staples are clinched after passing through the spine of the stack of folded sheets. Since the lowermost position of a stitching head 14, in which the stitching operation takes place, is invariable, it is necessary to provide adjustment means for the clinching anvils 22, in order to adapt the distance between the clinching anvils 22 and the lowest position of the stitching heads 14, to the thickness of the respective stacks of folded sheets.
  • stitching apparatus 140 is provided with a vertical support plate 23 which carries the anvils 22, and has a lower end portion guided in a guide slot 24 of a support 25 for up-anddown movement.
  • the support plate 23 supports a shaft 26 with an eccentric disc 27 which are arranged in a bore 28 in supporting means 25.
  • the outer end of shaft 26 carries a fixed hand wheel 29, and when the hand wheel 29 is turned, the eccentric disc 27 engages with the lower portion of its periphery the wall surface of bore 28 and slides the support plate 23 with the clinching anvils 22 in accordance with the effective radius of the eccentric disc 27 in upward or downward direction toward and away from the stitching head 14.
  • shaft 26 passes through a plate 30 which slidingly engages supporting means 25, and has two vertical slots 31.
  • two clamping handles 32 are threaded, which pass through the slots 31 and can clamp the plate 30 firmly to the supporting means 25 so that the adjusted position of the clinching anvils 22 is secured.
  • the uppermost carrier portions 12 of the conveyors 7 are to be placed at a level corresponding to the level of the adjusted clinching anvils 22 so that the folded stacks of sheets are properly transported by the carrier portions 12 while the respective clinching anvil 22 is located on the inside of the central fold line of the stack of sheets 13.
  • the supporting bar means 8 and 9 are each composed of articulated bar portions 81, 91; 82,92; and 83, 93, so that the central bar portions 82 and 92 are together movable between higher and lower positions for raising and lowering the portion of the upper run of the conveyors 7 which passes through the stitching apparatus 140.
  • the bar portions 82, 92 are together supported on a vertical bar 40 which ismounted in bearings 42, 43, and also on another vertical bar 41, see FIGS. 1 and 3, which is mounted in a bearing 44 of the machine housing 1.
  • a hand wheel 45 having a hub 45 provided with an inner'thread 46 is turnably but axially immovably mounted in a bearing 44 in the machine housing 1 coaxial with the bar 41 and the inner thread 46 engages the thread 47 of the vertical bar 41. By rotation of hand wheel 45, bar 41 is moved up and down.
  • a shaft 48 is turnably mounted in the machine housing 1 and carries two fixed transversely projecting levers 49 and 50 which are articulated by ball joints 51 and 52 with the vertical bars 40 and 41, respectively, so that the bars 40 and 41 are connected for simulta neous vertical movement under the control of the hand wheel 45.
  • central bar portions 82 and 92 are mounted on the vertical bars 40 and 41,. the central bar portions 82 and 92 move in a horizontal position up-and-down, while the bar end portions 91 and 93 are angularly displaced.
  • the up-and-down adjustment of the supporting bar means 8 and 9 raise and lower the parts of the conveyors 7 which move through the stitching apparatus so that the carriers 12 are raised and lowered to a level which corresponds to the level of the clinching anvils 22 previously adjusted in accordance with the thickness of the stack of folded sheets by operation of hand wheel 29.
  • members 29, 26, 27 and 23 constitute first adjusting means for adjusting the distance be tween the clinching anvil 22 and the stitching head 14 in accordance with the thickness of the folded stack of sheets, while members 45, 41, 40, 48, 49 and bar portions 82, 92, constitute second adjusting means for adjusting the height of the carriers 12 also in accordance with the thickness of the folded stack, and with the adjusted of the anvils 22.
  • Stitching machine for a stack of sheets, comprising transporting carrier means for transporting a stack of sheets along a path; stitching means including at least one stitching head and a clinching anvil respectively located above and below said path; first adjusting means for adjusting the position of said clinching anvil toward and away from said stitching head for varying the distance between said clinching anvil and said stitching head in accordance with the thickness of said stack; and second adjusting means for adjusting in accordance with the adjusted position of said clinching anvil and with the thickness of said stack, the position of at least the part of transporting carrier means which passes said stitching means.
  • said transporting carrier means include two parallel endless conveyor means, each conveyor means having a plurality of carrier links supporting said stacks; and wherein said clinching anvil is located between said two endless conveyor means.
  • said second adjusting means include support means for supporting said two conveyor means for movement along said path, and manual means connected with said support means for moving the same with-at least the parts of said two conveyor means passing said stitching means up and down in accordance with the thickness of said stack.
  • said linkage includes two vertical bars supporting said bar portions, two levers articulated to the lower ends of said vertical bars, and a shaft fixedly carrying said two levers; and wherein said manual means is operatively connected with one of said vertical bars for raising and lowering the same so that the other vertical bar is raised and lowered by said levers and shaft, and said two bar portions are raised and lowered by said vertical bars.
  • said transporting carrier means include two transporting carriers located on opposite sides of said clinching anvil; wherein said first adjusting means include a vertical plate located between said two transporting carriers and supporting said clinching anvil, and manually operated means for raising and lowering said plate with said clinching anvil.
  • said transporting carrier means include two transporting carriers located on opposite sides of said clinching anvil, and supporting said stack; and wherein said second adjusting means include linkage means for simultaneously raising and lowering both said transporting carriers with said stack to a level corresponding to the level of said clinching anvil, and manual means for actuating said linkage means.
  • said transporting carrier means include two parallel conveyors located on opposite sides of said clinching anvil for supporting said two angularly spread stack portions; and wherein said second adjusting means include two support means for guiding said conveyors in a horizontal plane, and manual means for raising and lowering said support means with said conveyors and folded stacks.
  • Stitching machine for a stack of sheets, comprising transporting carrier means for carrying and transporting a stack of sheets along a substantially horizontal path; stitching means for stitching the transported stack and located in said path; and adjusting means for vertically adjusting at least the part of said transporting carrier means which passes said stitching means, relative to said stitching means and in accordance with the thickness of the stack so that the relative position of said stitching means and of said path corresponds to the thickness of said stack.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Pile Receivers (AREA)
  • Sheet Holders (AREA)
US00231252A 1971-04-08 1972-03-02 Stitching machine for a stack of sheets Expired - Lifetime US3786979A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH521071A CH519993A (de) 1971-04-08 1971-04-08 Maschine zum Heften von gefalteten Broschüren

Publications (1)

Publication Number Publication Date
US3786979A true US3786979A (en) 1974-01-22

Family

ID=4289778

Family Applications (1)

Application Number Title Priority Date Filing Date
US00231252A Expired - Lifetime US3786979A (en) 1971-04-08 1972-03-02 Stitching machine for a stack of sheets

Country Status (4)

Country Link
US (1) US3786979A (de)
JP (1) JPS5513919B1 (de)
CH (1) CH519993A (de)
DE (1) DE2144027C2 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245766A (en) * 1978-09-25 1981-01-20 Butler Manufacturing Company Flying stitcher
US4367578A (en) * 1978-09-25 1983-01-11 Butler Manufacturing Company Method of placing stitches in a moving panel
US4479642A (en) * 1982-04-01 1984-10-30 K. S. Macey Machine Company, Inc. Reciprocating stitcher assembly operable along signature path
US4522383A (en) * 1982-05-04 1985-06-11 K. S. Macey Machine Company, Inc. Reciprocating stitcher assembly
US4770284A (en) * 1985-03-07 1988-09-13 Grapha-Holding Ag Apparatus for transporting folded sheets
US5577313A (en) * 1995-01-17 1996-11-26 Guido; Anthony Method and apparatus for joining deformable sheet stock
EP0893275A1 (de) * 1997-07-25 1999-01-27 Grapha-Holding Ag Verfahren für das Herstellen von Büchern oder Broschüren
EP1013470A1 (de) * 1998-12-24 2000-06-28 Grapha-Holding Ag Verfahren zur Herstellung eines Buchblockes aus gefaltenen, genähten und gedruckten Blättern und Vorrichtung zur Durchführung dieses Verfahrens
EP1273460A3 (de) * 2001-06-28 2004-01-28 Heidelberger Druckmaschinen Aktiengesellschaft Sammelhefter mit einem Führungselement im Heftbereich
US20100077687A1 (en) * 2008-09-26 2010-04-01 Jankovec Scott G Rotary stitch for joining sheet metal stock

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH645074A5 (de) * 1980-03-11 1984-09-14 Ferag Ag Verfahren und vorrichtung zum bilden von mehrblaettrigen druckprodukten, insbesondere zeitungen und zeitschriften.
CH662987A5 (de) * 1984-01-26 1987-11-13 Grapha Holding Ag Sattelheftmaschine.
CH667621A5 (de) * 1985-06-04 1988-10-31 Grapha Holding Ag Sammelhefter.
CH667620A5 (de) * 1985-07-01 1988-10-31 Ferag Ag Verfahren und vorrichtung zum sammeln von gefalzten druckbogen.
ES2042139T3 (es) * 1989-05-25 1993-12-01 Ferag Ag Aparato encuadernador.
JPH03279401A (ja) * 1990-05-23 1991-12-10 Yoshitaka Komura 衝撃吸収靴下類
JP3605173B2 (ja) * 1994-04-26 2004-12-22 グラプハ−ホルディング・アクチエンゲゼルシヤフト 丁合い綴じ機

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US538021A (en) * 1895-04-23 Wire-stitching machine
US1226170A (en) * 1914-08-27 1917-05-15 Latham Machinery Co Wire-stitching machine.
US1911159A (en) * 1931-01-15 1933-05-23 Latham Machinery Co Stitching machine
US2827632A (en) * 1955-01-17 1958-03-25 Time Inc Signature stitching mechanism

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US985264A (en) * 1906-05-09 1911-02-28 Herbert M Plimpton Stitching mechanism for signature-gathering machines.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US538021A (en) * 1895-04-23 Wire-stitching machine
US1226170A (en) * 1914-08-27 1917-05-15 Latham Machinery Co Wire-stitching machine.
US1911159A (en) * 1931-01-15 1933-05-23 Latham Machinery Co Stitching machine
US2827632A (en) * 1955-01-17 1958-03-25 Time Inc Signature stitching mechanism

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245766A (en) * 1978-09-25 1981-01-20 Butler Manufacturing Company Flying stitcher
US4367578A (en) * 1978-09-25 1983-01-11 Butler Manufacturing Company Method of placing stitches in a moving panel
US4479642A (en) * 1982-04-01 1984-10-30 K. S. Macey Machine Company, Inc. Reciprocating stitcher assembly operable along signature path
US4522383A (en) * 1982-05-04 1985-06-11 K. S. Macey Machine Company, Inc. Reciprocating stitcher assembly
US4770284A (en) * 1985-03-07 1988-09-13 Grapha-Holding Ag Apparatus for transporting folded sheets
US5577313A (en) * 1995-01-17 1996-11-26 Guido; Anthony Method and apparatus for joining deformable sheet stock
EP0893275A1 (de) * 1997-07-25 1999-01-27 Grapha-Holding Ag Verfahren für das Herstellen von Büchern oder Broschüren
US6095740A (en) * 1997-07-25 2000-08-01 Grapha-Holding Ag Method of manufacturing books or brochures
EP1013470A1 (de) * 1998-12-24 2000-06-28 Grapha-Holding Ag Verfahren zur Herstellung eines Buchblockes aus gefaltenen, genähten und gedruckten Blättern und Vorrichtung zur Durchführung dieses Verfahrens
EP1273460A3 (de) * 2001-06-28 2004-01-28 Heidelberger Druckmaschinen Aktiengesellschaft Sammelhefter mit einem Führungselement im Heftbereich
US6866257B2 (en) 2001-06-28 2005-03-15 Heidelberger Druckmaschinen Ag Gathering-stitching machine having a guide element in the stitching region
US20100077687A1 (en) * 2008-09-26 2010-04-01 Jankovec Scott G Rotary stitch for joining sheet metal stock
US7762034B2 (en) 2008-09-26 2010-07-27 Chicago Metallic Corporation Rotary stitch for joining sheet metal stock

Also Published As

Publication number Publication date
DE2144027A1 (de) 1972-10-12
CH519993A (de) 1972-03-15
JPS5513919B1 (de) 1980-04-12
DE2144027C2 (de) 1983-01-20

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STCF Information on status: patent grant

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AS Assignment

Owner name: MULLER-MARTINI CORP., 40 RABRO DRIVE, HAUPPAUGE, N

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GRAPHA HOLDING AG, A CORP OF SWITZERLAND;REEL/FRAME:004725/0269

Effective date: 19860606

Owner name: GRAPHA HOLDING AG, HERGISWILL, SWITZERLAND A CORP.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GRAPHA MASCHINENFABRIK HANS MULLER AG, A CORP. OF SWITZERLAND;REEL/FRAME:004717/0374

Effective date: 19860606