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
  • B42B4/02—Rotary type stitching machines

Definitions

• This invention relates to a device for stitching together a continuously fed paper web, especially such a stitching device as is mounted in a press or a following folder.
• Devices for stitching together a continuously fed paper web which comprise two sets of stitch ⁇ ing units each consisting of a cooperating supporting cylinder and a stitching cylinder as well as a feeding device advancing sitching material to the stitching cylinder, said feeding devide including a feeder hous ⁇ ing and a shaping roller.
• Fig . 1 is a sectional view of a device according to the invention
• Fi ⁇ . 2 shows a vertical section of the end portion of the device of the' invention, especially the driving system of the device
• Ficr. 3 shows a detail of the wire when advanced in the stitcher of the invention.
• a device of the invention for stitching together a continuously fed paper web 1 is shown schematically by the dash-dot line.
• the device is preferably arranged directly at the end of a printing press to stitch together the paper web coming there ⁇ from.
• the paper web 1, which of course comprises sever- al layers to be stitched together is fed through the nip between a stitching cylinder 2 and a supporting cy ⁇ linder 3 for carrying out stitching.
• the stitching cy ⁇ linder 2 is rotatably carried on a shaft 2' and the supporting cylinder 3 is rotatably carried on a shaft 3'.
• Stitching material in the form of a continuous wire wound off a storage roller is fed to the stitching cy ⁇ linder by way of a feeding device 4 and a shaping rol ⁇ ler 5 to cut off the continuous wire and bend the stitching material thus formed before it is received by the stitching cylinder 2 to be pressed through the paper web 1 and folded by the counter-pressure against the supporting cylinder 3.
• the stitching cy ⁇ linder 2 and the feeding device 4 are attached to a common carrier in the form of a mounting plate carrying these.
• the mounting plate 6 is provided with two guide housings 7 which each engage a guide beam 8 extending in parallel with the shafts 2', 3' of the stitching cy ⁇ linder and the supporting cylinder.
• the mounting plate 6 is arranged to be movable along the guide beams 8 to ⁇ gether with the stitching cylinder 2 and the feeding device 4 supported thereon and consequently also along the shaft 2' of the stitching cylinder 2.
• the guide housing 7 of the mounting plate 6 comprises locking screws 9, by means of which the guide housing can be locked at the guide beam 8 in an arbitrary position along the guide beam.
• the shaft 2' of the stitching cy ⁇ linder 2 comprises a longitudinal groove 10 in which a guide pin 11 of the stitching cylinder 2 can engage so that the stitching cylinder is always attached in the right angular position relative to the shaft 2' .
• the guide pin 11 may also be threaded and accessible from the outside of the stitching cylinder 2 , as indicated in the figure, in order to be threaded into the stitch- ing cylinder 2 and contribute to its locking in a de ⁇ sired position along the shaft 2', simultaneously with tightening the locking screws 9 for locking the guide housings 7 along the guide beams 8.
• the shaping roller 5 is also placed on a shaft 5' extending substantially along the whole device and can be moved in the longi ⁇ tudinal direction of the shaft 5' when moving the mounting plate 6 that can also guide the shaping rol ⁇ ler.
• the wheels shown in the feeding device 4 are supported by means of bearings in the mounting plate 6 and, thus, not placed on any through shaft.
• the two wheels of the feeding device 4 are operated via the shaping roller 5 by means of driving belts, as indicated in Fig. 1.
• the shaping roller 5 is fastened relative to the mounting plate 6 along its shaft 5' by means of locking screws hot shown.
• the supporting cylinder 3 carried on its through longitudinal shaft 3' is separately attached to this and guided in a definite angular position relative to the shaft 3' by means of a guide pin 12 indicated in Fig. 1 and is, further, lockable in an arbitrary posi ⁇ tion along the shaft 3' by means of a locking screw in ⁇ dicated in the figure with a dashed line which can have a tapered contact surface, see Fig. 1.
• FIG. 1 a vertical section of the drive end of the device according to the invention, is shown.
• An input drive shaft 14 is driven by a motor not shown, said shaft being connectable by means of a coupling 15 to the shaft 3' of the supporting cylinder 3 which is on a line with the input drive shaft 14.
• a gear 3" is attached which is in engagement with a corresponding gear 2" on the shaft 2' which, in turn, is in engagement with a gear 5" on the end of the shaft 5' .
• a synchronous drive of the shafts 3', 2' and 5' is obtained and c ⁇ n- sequently also of the supporting cylinder 3, the stitching cylinder 2 and the shaping roller 5.
• the wheels in the feeding device 4 ad ⁇ vancing wire to form stitching material to a shaping roller 5 are driven by means of driving belts or gears which, in turn, are driven by the shaping roller 5 or its shaft 5 ' .
• a stitching unit is shown which is sup ⁇ ported by the shafts 2', 3' and 5', but the device com ⁇ prises at least another stitching unit attached to the shafts 2', 3' and 5' in the exensi ⁇ n of these, to the right in Fig. 2, spaced from the stitching unit shown.
• the guide beams 8 also continue in parallel with the shafts and the device can comprise more than two stitching units in a spaced relationship.
• each such stitching unit the stitching cylinder, the feeding de- vice and the shaping roller are preferably supported by a mounting plate which is movable by means of their guide housings along the guide beams 8 so that this part of each stitching unit can be moved as one unit along the shafts and be attached at an arbitrary place along these.
• the supporting cylinders associated with each stitching unit can also be detached separately in a corresponding way and be moved for adjustment at the level of the associated stitching cylinder.
• the feeding device 4 comprises preferably a pair of feeding wheels (not shown) for advancing the wire 15 in the direction of the arrow 17 to the stitching cy ⁇ linder 2, said feeding wheels being driven synchronous ⁇ ly with the stitching and supporting cylinders.
• the wire 16 which is drawn off the coil (not shown), on which it is wound by means of the feeding wheels is led through a channel 18 up to the position (indicated by the arrow 19) where the stitching cylinder 2 is to grip the wire 16 and is cut there by a knife (not shown) and delivered to the stitching cylinder 2.
• the wire 16 is fed at a substantially constant pressure up to the stitching cylinder 2, but by means of a recess on the periphery of one of the feeding wheels the feeding pressure is reduced occasionally on the very occasion when the knife cuts the wire 16.
• the channel 18 through which the wire is fed is formed in a curve in a feeding plate 20.
• the shafts or guide beams can be provided with adjusting notches in the form of e.g. cuts in order to simplify the setting in predetermined positions.
• a motor drive for moving the stitching units along the shafts and the guide beams for adjustment in arbitrary or determined preselected positions can also be arranged.
• the shafts can also be driven in any other way permitting a synchronized drive, for instance by means of a toothed belt.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
• Sewing Machines And Sewing (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20367732

Family Applications (1)

Country Status (5)

Families Citing this family (4)

Family Cites Families (7)

• 1987
  • 1987-03-03 SE SE8700886A patent/SE8700886D0/xx unknown
• 1988
  • 1988-03-03 EP EP19880902265 patent/EP0426659A1/en not_active Withdrawn
  • 1988-03-03 AU AU13922/88A patent/AU1392288A/en not_active Abandoned
  • 1988-03-03 WO PCT/SE1988/000096 patent/WO1988006563A1/en not_active Ceased
  • 1988-03-03 JP JP63502264A patent/JPH01502741A/ja active Pending

Non-Patent Citations (1)

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