US3383852A - Staple forming method and device - Google Patents

Staple forming method and device Download PDF

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Publication number
US3383852A
US3383852A US407633A US40763364A US3383852A US 3383852 A US3383852 A US 3383852A US 407633 A US407633 A US 407633A US 40763364 A US40763364 A US 40763364A US 3383852 A US3383852 A US 3383852A
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United States
Prior art keywords
stapling
wire
cylinder
staple
cut
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Expired - Lifetime
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US407633A
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English (en)
Inventor
Heimlicher Paul
Hein Eduard Von
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.)
Winkler Fallert and Co AG Maschinenfabrik
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Winkler Fallert and Co AG Maschinenfabrik
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    • 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
    • B42B4/02—Rotary type stitching machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F45/00—Wire-working in the manufacture of other particular articles
    • B21F45/16—Wire-working in the manufacture of other particular articles of devices for fastening or securing purposes
    • B21F45/24—Wire-working in the manufacture of other particular articles of devices for fastening or securing purposes of staples; of belt-fastening elements
    • 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

Definitions

  • the disclosure is directed to a wire stapling machine in which cutting of a fed staple wire is effected by a revolving knife in a manner such that the speed of cutting of the staple, which corresponds to the circumferential speed of the knife, is low compared to the circumferential speed of a stapling cylinder operable to transport the cut staple lengths to bending means and to a point of use.
  • a further feature of the disclosure is that, during bending of the cut wire lengths into staples, the speed of the cut wire lengths, relative to bending means cooperable with the stapling cylinder, is substantially zero.
  • the apparatus of the invention includes a drive shaft for rotating a stapling cylinder on which is mounted a stapling piston which is reciprocable radially of the stapling cylinder and has a forked outer end projectable beyond the periphery of the stapling cylinder to pick up and transport cut staple lengths.
  • a second shaft is driven from the stapling cylinder by gearing interconnecting it with the stapling cylinder shaft, and the gear ratio of this gearing can be selected in accordance with the desired speed of the second shaft.
  • the second shaft supports a rotatable disk carrying at least one cutting knife cooperable with a fixed die to cut the wire into cut staple lengths.
  • a rotatable bending disk which is cooperable with the cut staple length in the fork of the stapling cylinder to bend the cut staple length into a staple, and this bending disk is rotated from the drive shaft of the stapling cylinder at a peripheral velocity substantially equal to that of the stapling cylinder so that, during bending of the cut staple length, the speed of the cut staple length relative to the bending means is substantially Zero.
  • This bending disk has a peripheral groove and a stripper is engaged in this groove to strip the bent staples from the bending disk.
  • This invention relates to staple formation in wire stapling machines particularly adapted for use with high speed rotary presses, and, more particularly, to a novel method of and apparatus for cutting the staple wire into selected lengths and bending the cut lengths to form the staples.
  • Wire stapling machines of the type to which the invention is directed are used, particularly with high speed rotary printing presses, to staple together superposed webs delivered from the printing press and generally in advance of a folding machine.
  • the operation of such a wire stapling machine may generally be divided into two functions.
  • the first function involves the cutting of a continuous fed staple wire, usually supplied from rolls, into preselected lengths, followed by the bending of these preselected lengths into U-shape staples.
  • the formed staples are pierced through copy to be stapled and are then closed by bending inwardly the projecting legs of the Patented May 21, 1968 staple.
  • the present invention is directed to the first-mentioned function and has substantially no relation to the second-mentioned function of the wire stapling machine.
  • Such wire stapling machines include a rotating stapling cylinder, which not only cooperates in the formation of the staples but also conveys the formed staples to the position at which they are pierced through the copy to e stapled.
  • the fed continuous wire is cut by means of small knives which are mounted either on the stapling cylinder or directly on a stapling piston which is reciprocable radially in the stapling cylinder. These small knives move past fixed cutting dies.
  • the speed of these knives, relative to the continuous staple wire to be cut corresponds substantially to the speed of the paper webs delivered from the rotary printing press. In the case of high speed rotary presses, the speed of the knives is also high and the wire is more beaten off than cut off. This has a disadvantageous effect on the subsequent staple formation.
  • the staples are formed by using a stapling horn cooperable with the stapling piston mounted for reciprocation in the stapling cylinder.
  • the stapling horn has substantial disadvantages. Among these disadvantages is the particular one that, at full speed of the rotary press, the staple to be formed is pushed against the fixed stapling horn with the requisite force necessary for bending of the staple wire. Thereby the edges of the stapling horn are subjected to great frictional stress and relatively rapid wear. As a consequence the stapling horn must be hardened and ground, and at relatively great expense. Also it must be made to fit very precisely into the stapling piston fork over its entire length. The resulting grazing between the horn and the piston fork results in heating and seizing. The top of the stapling horn is also very liable to break, in the case of paper stuifers.
  • a stapling horn is dispensed with and the staple is formed by a second cylinder supporting controlled rams which push the staple wire between the forks of the stapling piston in the stapling cylinder.
  • This additional cylinder with the controls required for the ram operation, substantially increases the cost of the wire stapling machine, greatly interferes with access to the stapling cylinder and involves the use of controlled rams which are prone to trouble.
  • An object of the present invention is to provide, in the formation of staples in a wire stapling machine, an improved method of cutting the fed continuous wire into selected staple lengths.
  • Another object of the invention is to provide, in the formation of staples in a wire stapling machine, a methd of cutting the fed continuous wire into staple lengths at a cutting speed which is low relative to the circumferential speed of a rotating stapling cylinder.
  • a further object of the invention is to provide, in the formation of staples in a wire stapling machine, an improved method of cutting the fed Continuous wires into staple lengths by revolving knife means in which the circumferential speed of the revolving knife means is synchronized with the angular velocity of the stapling cylinder.
  • Still another object of the invention is to provide, in the formation of staples in a wire stapling machine, an improved method of bending the cut wire lengths to form the staples.
  • Yet another object of the invention is to provide, in the formation of staples in a wire stapling machine, a method of bending the cut wire lengths into U-shape in which the speed of the cut wire lengths, relative to a bending means is substantially zero.
  • a further object of the invention is to provide improved wire cutting means in a wire stapling machine particularly adapted for use with high speed rotary presses.
  • Still another object of the invention is to provide improved cut wire length bending means in a wire stapling machine particularly designed for use with high speed rotary presses.
  • the apparatus for performing the method of the invention includes a separate rotatable shaft mounted in a fixed support and carrying a disc provided with at least one cutting knife revolvable by the disc in operative association with a fixed cutting die.
  • This shaft is driven positively from the stapling cylinder by means of gears whose gear ratio may be selected according to the desired circumferential speed of the cutting knife or knives.
  • the apparatus includes a rotatably mounted bending disc which engages within the fork of the stapling piston which is mounted for radially reciprocation in the stapling cylinder.
  • This disc is driven by the stapling cylinder through the medium of gears, so that its angular velocity is synchronized with that of the stapling cylinder, to the extent that the circumferential speeds of the disk and the cylinder are substantially equal.
  • the latter is formed with an annular groove or channel around its periphery and a stripper is operatively positioned in this annular groove or channel to strip the formed staples from the bending disc.
  • FIG. 1 is a somewhat diagrammatic view of a wire stapling machine embodying the invention
  • FIG. 2 is a part vertical elevation and part vertical sectional view, to a larger scale, of a portion of the wire stapling machine shown in FIG. 1;
  • FIG. 3 is a side elevation view, partly in section, of the wire stapling machine.
  • FIG. 4 and FIG. 5 are sectional views taken on the lines II and IIII, respectively, of FIG. 2.
  • FIG. 1 illustrates the general arrangement of a Wire stapling machine, the arrangement being examplary only.
  • the paper Web from a high speed rotary printing press is illustrated at 1.
  • This Web is cut into sheets by knives (not shown) of a rotating cylinder 2.
  • the severed sheets are carried away from the cylinder 2 by a second cylinder 3 having suitable means for retaining the sheets thereon, such as piercing points or grippers.
  • Cylinder 3 transports the cut sheets past the stapling cylinder 4, where the sheets may be stapled together, and to a folding cylinder 5.
  • the folding cylinder 5 delivers the folded copy to a delivery means generally indicated at 6.
  • the stapling cylinder 4 is rotatably mounted, and, in
  • a stapling piston mounted for radial reciprocation therein and having a fork at its operative end.
  • Support 8 rotatably supports a shaft 9 which is fixed against axial displacement, this shaft being shown more particularly in FIG. 3.
  • Shaft 9 is driven positively from stapling cylinder 4 through the medium of gears 18 and 11 and a shaft 12, with gear 10 being fixed to rotate with shaft 9 and gear 11 being fixed to rotate with shaft 12.
  • a disc 13 is fixed to the end of shaft 9 and has secured thereon at least one cutting knife 14.
  • the revolving speed of knife 14 relative to the peripheral speed of stapling disk 4 can be made low by virtue of the fact that disk 13 has a relatively small diameter as compared to the diameter of stapling cylinder 4, whereby, for example, disk 13 and stapling cylinder 4 may be rotated at the same angular velocity and in synchronism with each other.
  • any other speed ratio between disk 13 and stapling cylinder 4 may be selected by proper selection of the gear ratio of gears 18 and 11 to maintain the required low cutting speed of knives 14 relative to the peripheral speed of stapling cylinder 4, while still maintaining synchronism between the angular velocities and relative angular positions of disk 13 and stapling cylinder 4.
  • the continuous staple wire 15 is unwound from a reel or roll 16 by a wire feeding means 17 and delivered through a cutting die 13.
  • Cut ting die 18, which is a fixed cutting die, is mounted in a holder 19 which is secured to the fixed support 8.
  • the exit of cutting die 18 is provided with a fixed cutting knife which cooperates with the revolving cutting knife 14 to cut the fed continuous staple wire 15 into selected staple lengths 15a.
  • the cut staple lengths 15a are guided between the armate surface of a relatively rigid guide 22 and a leaf spring 21, best seen in FIG. 2.
  • Transport of the severed staple wire pieces 15a is effected byrthe forked outer end 28 of a stapling piston 23 which is mounted for radial reciprocation in the stapling cylinder 4.
  • the radially outer ends of the arms of the fork 28 are notched, as at 28a, to receive and transport the separate wire piece 15a counterclockwise, as viewed in FIG. 2.
  • Stapling piston 23 transports the cut wire lengths 15a toward a bending disc 24 which is rotatably mounted in the support 8.
  • Disc 24 is positively driven from stapling cylinder 4 through the medium of gears 25 and 26, the gear 25 being fixed to rotate with disc 24 and the gear 26 being an annular gear secured on stapling cylinder 4.
  • disc 24 has its periphery formed as a substantially rectangular cross section annular channel or groove.
  • the disc As stapling piston 23 comes into operative relation with disc 24, the disc enters into the fork 28 of the stapling piston.
  • the cut Wire length 15a is thus bent into a U- shape, as illustrated at 15b in FIG. 5. Due to the inherent elasticity of the cut wire length, which is still present after the bending, the bent wire length 1512 is frictionally held in inwardly diverging dovetail grooves 27 of the fork 28, the frictional clamping engagement of the bent piece 15b in these grooves being suflicient to restrain the piece 15b from being thrown off by centrifugal force.
  • Stapling piston 4 is provided with an arcuate bridge member 36 which extends through the fork 28 of stapling piston 23, and bridge 36 is formed with a groove 29 extending transversely of its exterior surface.
  • the formed staple 15! has its bight portion engaged in the groove 29, with its legs engaged in the grooves 27 of the stapling piston fork 28, and is thus transported by the stapling cylinder 4.
  • a stripper 31 extends into the channel groove of the rotating disc 24 and thus strips the formed staple b from the disc 24. Stripper 31 extends far enough to make certain that the formed staple 15b is completely disengaged from the rotating disc 24.
  • the latter now remains with its legs engaged in the grooves 27 of the stapling piston 28, and with its bight engaged in the transverse groove 29 of bridge 30, until the closing of the staple takes place in a known manner at the point of contact of cylinders 3 and 4.
  • the stripper 31 may be extended to a point closely adjacent this contact point to prevent throwing off of the staple when inferior staple wire is used. It will be understood that the disc 24 and the stripper 31 may be used for formation of staples in other types of wire staple machines, and the disc 24 may be driven or not.
  • a wire stapling machine including a rotatable stapling cylinder, a stapling piston on said cylinder reciprocable radially of said cylinder, at fixed cutting die, and means for feeding a continuous staple wire through said die, the improvement comprising: revolving knife means cooperable with said die to cut the staple wire into selected staple lengths; and driving means interconnecting said stapling cylinder and said knife means and revolving said knife means to cut the continuous wire at a cutting speed which is low relative to the circumferential speed of the stapling cylinder.
  • a wire stapling machine including a rotatable stapling cylinder, :1 stapling piston on said cylinder reciprocable radially of said cylinder, a fixed cutting die, and means for feeding a continuous staple wire through said die
  • the improvement comprising: revolving knife means cooperable with said die to cut the staple wire into selected staple lengths; said piston having a forked outer end projectable beyond the periphery of said cylinder to pick up and transport the cut staple lengths; and bending means, cooperable with said stapling piston, operable to bend the cut staple lengths transported by the latter into staple form at a speed of said cut staple lengths relative to said bending means, which is substantially zero; driving means interconnecting said stapling cylinder and said knife means and revolving said knife means to cut the continuous wire at a cutting speed which is low relative to the circumferential speed of said stapling cylinder.
  • a wire stapling machine including a rotatable stapling cylinder, a stapling piston on said cylinder reciprocable radially of said cylinder, a fixed cutting die, and means for feeding a continuous stapling wire through said die
  • the improvement comprising; revolving knife means cooperable with said die to cut the staple wire into selected staple lengths; said piston having a forked outer end projectable beyond the periphery of said cylinder to pick up and transport the cut staple lengths; bending means cooperable with said stapling piston, operable to bend the cut staple lengths transported by the latter into staple form at a speed of said cut staple lengths, relative to said bending means, which is substantially zero; driving means positively interconnecting said stapling cylinder and knife means and revolving said knife means at a circumferential speed synchronized with the angular velocity of said stapling cylinder.
  • a wire stapling machine including a rotatable stapling cylinder, a stapling piston mounted on said cylinder and reciprocable radially of said cylinder, a fixed cutting die, and means for feeding a continuous staple wire through said die, the improvement comprising: a rotatably mounted disc adjacent said die; and at least one cutting knife mounted on said disc for revolving thereby and cooperable with said die to cut the staple wire into selected staple lengths; said piston having a forked outer end projectable beyond the periphery of said cylinder to pick up and transport the cut staple lengths.
  • the improvement claimed in claim 7 including a shaft having said disc mounted thereon; means rotatably supporting said shaft; and driving means interconnecting said stapling cylinder and said shaft to revolve said cutting knife at a circumferential speed synchronized with the angular velocity of said stapling cylinder.
  • the improvement claimed in claim 7 including a shaft having said disc mounted thereon; mean rotatably supporting said shaft; and gearing interconnecting said stapling cylinder and said shaft for positive driving of said disc by said stapling cylinder to revolve said cutting knife at a circumferential speed synchronized with the angular velocity of said stapling cylinder.
  • the improvement claimed in claim 9 including said gearing having a reduction ratio selected in accordance with the desired relation of the circumferential speed of said cutting knife to the angular velocity of said stapling cylinder.
  • a Wire stapling machine including a rotatable stapling cylinder, a stapling piston mounted on said cylinder and reciprocable radially of said cylinder, a fixed cutting die, and means for feeding a continuous staple wire through said die
  • the improvement comprising: revolving knife means cooperable with said die to cut the staple wire into selected staple lengths; a bending disc rotatably mounted adjacent said stapling cylinder for rotation about an axis parallel to the axis of rotation of said stapling cylinder, the periphery of said bending disc being substantially tangent to the periphery of said stapling cylinder; said bending disc being spaced, in the direction of rotation of said stapling cylinder, from said knife means; said piston having a forked outer end projectable beyond the periphery of said cylinder to pick up and transport the cut staple lengths past said bending disc; said bending disc engaging with the fork of said stapling piston to bend the cut staple lengths into staple
  • the improvement claimed in claim 11 including gearing interconnecting said stapling cylinder and said bending disc for positive driving of said bending disc by said stapling cylinder at a peripheral speed substantially equal to that of said stapling cylinder.
  • the improvement claimed in claim 11 including said bending disc having a channel shaped groove extending around its periphery; and a stripper engaged in said groove and effective to strip the formed staples from said bending disc.
  • the improvement claimed in claim 13 including the inner surfaces of the legs of the forked outer end of said stapling piston each having a groove extending inwardly from the outer end of said stapling piston, said grooves increasing in cross sectional area inwardly of said forked outer end.
  • improved bending means comprising, in combination, said piston having a forked outer end projectable beyond the periphery of said cylinder to pick up and transport the cut staple lengths; and a bending disc rotatably mounted adjacent the periphery of said stapling cylinder for engaging cut staple lengths transported on the surface of said stapling cylinder by the forked outer end of said stapling piston; said bending disc engaging with said forked outer end to deform the cut staple lengths to form staples; said bending disc having a channel groove extending around its periphery; and a stripper engaged in said groove to strip formed staples from said bending disc.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
US407633A 1963-11-08 1964-10-30 Staple forming method and device Expired - Lifetime US3383852A (en)

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SE1231763 1963-11-08

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US3383852A true US3383852A (en) 1968-05-21

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US407633A Expired - Lifetime US3383852A (en) 1963-11-08 1964-10-30 Staple forming method and device

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US (1) US3383852A (de)
CH (1) CH413778A (de)
DE (1) DE1452995A1 (de)
GB (1) GB1074198A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3540212A (en) * 1967-11-27 1970-11-17 Nyberg Carl E J Staple bar producing machines
JP3277252B2 (ja) 1989-05-25 2002-04-22 フェラーク アーゲー 綴じ機
US6962280B2 (en) 2002-07-05 2005-11-08 Goss International Americas, Inc. Rotary stitching device
CN112793327A (zh) * 2020-12-11 2021-05-14 温州商学院 一种试卷自动化成套装订装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2932756C2 (de) * 1979-08-13 1982-03-25 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Schneidvorrichtung für eine Heftvorrichtung einer Druckmaschine
DE3210014C2 (de) * 1982-03-19 1985-05-15 Albert-Frankenthal Ag, 6710 Frankenthal Vorrichtung zum Zuführen von Klammerdraht zu einer Klammerbildungseinrichtung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US89985A (en) * 1869-05-11 Improved cracker-machine
US2341956A (en) * 1943-07-22 1944-02-15 Edwin G Staude Patch applying mechanism
US2634576A (en) * 1950-01-07 1953-04-14 Abraham Borut Staple forming machine
DE1008637B (de) * 1955-04-23 1957-05-16 Hauni Werke Koerber & Co Kg Vorrichtung zum Abschneiden beleimter, fuer das Verbinden von Filtern mit Zigaretten dienender Blaettchen
US3017634A (en) * 1958-04-19 1962-01-23 Maschf Augsburg Nuernberg Ag Staple wire cutting device for printing press stitching apparatus
US3104579A (en) * 1960-12-07 1963-09-24 Blankenship Paul Vernon Variable die for strand cutting machine
US3276304A (en) * 1964-05-06 1966-10-04 Nat Electric Welding Machines Cross wire locating device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US89985A (en) * 1869-05-11 Improved cracker-machine
US2341956A (en) * 1943-07-22 1944-02-15 Edwin G Staude Patch applying mechanism
US2634576A (en) * 1950-01-07 1953-04-14 Abraham Borut Staple forming machine
DE1008637B (de) * 1955-04-23 1957-05-16 Hauni Werke Koerber & Co Kg Vorrichtung zum Abschneiden beleimter, fuer das Verbinden von Filtern mit Zigaretten dienender Blaettchen
US3017634A (en) * 1958-04-19 1962-01-23 Maschf Augsburg Nuernberg Ag Staple wire cutting device for printing press stitching apparatus
US3104579A (en) * 1960-12-07 1963-09-24 Blankenship Paul Vernon Variable die for strand cutting machine
US3276304A (en) * 1964-05-06 1966-10-04 Nat Electric Welding Machines Cross wire locating device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3540212A (en) * 1967-11-27 1970-11-17 Nyberg Carl E J Staple bar producing machines
JP3277252B2 (ja) 1989-05-25 2002-04-22 フェラーク アーゲー 綴じ機
US6962280B2 (en) 2002-07-05 2005-11-08 Goss International Americas, Inc. Rotary stitching device
CN112793327A (zh) * 2020-12-11 2021-05-14 温州商学院 一种试卷自动化成套装订装置

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Publication number Publication date
GB1074198A (en) 1967-06-28
CH413778A (de) 1966-05-31
DE1452995A1 (de) 1969-06-19

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