EP0442264B1 - Dispositif de préparation de morceaux de fil métallique pour appareil de brochage - Google Patents

Dispositif de préparation de morceaux de fil métallique pour appareil de brochage Download PDF

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Publication number
EP0442264B1
EP0442264B1 EP91100341A EP91100341A EP0442264B1 EP 0442264 B1 EP0442264 B1 EP 0442264B1 EP 91100341 A EP91100341 A EP 91100341A EP 91100341 A EP91100341 A EP 91100341A EP 0442264 B1 EP0442264 B1 EP 0442264B1
Authority
EP
European Patent Office
Prior art keywords
wire
recess
take
shaft
feeding
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
EP91100341A
Other languages
German (de)
English (en)
Other versions
EP0442264A1 (fr
Inventor
Egon Hänsch
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.)
Ferag AG
Original Assignee
Ferag AG
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Filing date
Publication date
Application filed by Ferag AG filed Critical Ferag AG
Publication of EP0442264A1 publication Critical patent/EP0442264A1/fr
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Publication of EP0442264B1 publication Critical patent/EP0442264B1/fr
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
    • B42B4/02—Rotary type stitching machines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2183—Product mover including gripper means
    • Y10T83/219—Rotating or oscillating product handler
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/22—Means to move product laterally
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2209—Guide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/4539—Means to change tool position, or length or datum position of work- or tool-feed increment
    • Y10T83/4541—With means to vary magnitude of work-feed increment
    • Y10T83/4549—By change in length of one member of feed-driving linkage
    • Y10T83/4551—Rotating member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/4587—Dwell initiated by disengagement of surface of moving frictional feed means from work
    • Y10T83/4592—Feed means has rotary motion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8772—One tool edge of tool pair encompasses work [e.g., wire cutter]

Definitions

  • the present invention relates to a device for preparing wire sections from a wire for a stapler for stapling multi-sheet printed products such as newspapers, magazines and the like, according to the preamble of claim 1.
  • a device of this type is known from US Pat. No. 3,762,622. This has a wire section dispensing unit with a feed part for gradually feeding a wire to a cutting device.
  • a lever-shaped cutting tool is provided in the cutting device, which is driven to rotate about an axis running parallel to the feed direction of the wire and has entraining teeth at its radial end area, which strike the advanced starting area of the wire and, in cooperation with a fixed knife, separate a wire section from the wire .
  • the wire section is held between the cutting tool, the driving teeth and a circular guide element and moved about 90 ° with the cutting tool and fed to a receiving part.
  • the receiving part has a receiving gap delimited by a stationary block and a leaf spring tangential to the path of movement of the driving teeth and with its longitudinal extension perpendicular to the wire section, into which the wire section is inserted while sliding away from the driving teeth.
  • the wire section is in the receiving gap due to the leaf springs kept gap.
  • a rotating stapling head has a driving part protruding outwards in the radial direction with a driving flank which, when the stapling head moves past the receiving gap, strikes the wire section and takes it over and conveys it away.
  • the wire section held by the entraining part is then bent into an open clamp and pushed and bent through several paper webs lying one above the other by means of the stitching head.
  • FR Patent No. 1220597 discloses a stapler with an integrated device for processing wire sections.
  • the wire is introduced by means of feed wheels through a tubular passage part into a groove-like recess spaced apart therefrom into a clip guide part.
  • the recess and an elastic tongue covering the opening running in the longitudinal direction of the recess serve to guide the wire.
  • a freely rotatable cutting wheel is arranged on the punch of a rotatingly driven stitching head, which cuts off a wire section each time it moves past the passage part.
  • the stamp has lateral entraining projections which grip around the side of the clamp guide and, when moving past the recess, take the wire section along its end sections projecting in the longitudinal direction beyond the recess. When the stitching head is turned further, the wire sections are then bent into clips with the interaction of the stamp and the chamber guide.
  • the initial area of the wire is inserted into a groove-shaped recess in a receiving part with play.
  • the device is thus not critical to wire dimensions. It also enables even slightly bent wires to be processed.
  • the dimensions of the opening of the recess are so large that the wire section separated from the wire can emerge without problems. But since this opening by the end of the If the cutting process is closed by a take-over part that can be moved past the receiving part, the wire section cannot fall freely out of the recess, but is caught in it until it is gripped and conveyed away by the take-over part. The wire section is thus taken over by the takeover part approximately where it is separated from the wire.
  • the recess is shaped in such a way that when the beginning of the wire is introduced obliquely towards the bottom, the wire section to be cut off from the wire is aligned approximately parallel to the take-over part, which enables the wire section to be taken over without problems.
  • the wire section reaches a groove-shaped depression in the driving part, where it is held by means of a magnet.
  • the removal of the wire section away from the receiving part is thereby ensured in a particularly simple manner.
  • an adjustable wire guide element By means of an adjustable wire guide element according to claim 4, it is ensured in a particularly simple manner that the wire start area inserted into the recess from the feed part cannot protrude through the opening.
  • Claim 5 defines a particularly preferred and extremely simple embodiment of the wire guide element.
  • the device for processing wire sections 10 shown in the figures has a wire section dispensing unit 14 driven by a drive unit 12 and a wheel-shaped take-over device 16 also driven by the drive unit 12.
  • the take-over device 16 takes over from the wire section dispensing unit 14, the wire sections 10 prepared therefrom from a wire 18 and feeds them to a schematically indicated stapler 20.
  • a stapler 20 with a plurality of stapling heads arranged one behind the other and rotating in the direction of arrow A is described in detail in Swiss Patent Application 01 964 / 89-3.
  • particularly suitable stitching heads for taking over wire sections 10 are disclosed in CH patent application 01 963 / 89-1.
  • a stamp 22 of a stitching head is indicated in FIG. 1.
  • the wire section dispensing unit 14 has a cutting device 24 and a feed part 26 with a feed device 28 for gradually feeding the wire 18 to the cutting device 24, which are arranged on a substantially cuboid bearing block 32 fastened to a bearing plate 30 of the drive unit 12.
  • the feed part 26, following the feed device 28, has an essentially tubular wire guide element 34, the outlet 36 for the wire 18, which is round in cross section and has a nozzle-shaped design, with a knife 38 which can be moved up and down in the arrow direction C. the cutting device 24 interacts (see in particular FIG. 3).
  • the knife 38 is made of a flat iron and has a blunt design, which contributes to a particularly long service life.
  • the knife 38 is subsequently provided with a receiving part 40 which has a groove-shaped recess 42 which is open obliquely downwards (see in particular FIGS. 3 and 6). Seen in the feed direction B, the recess 42 is open at both ends.
  • the length of the receiving part 40 and thus of the recess 42 corresponds approximately to the greatest length of the wire sections 10 to be processed.
  • the recess 42 which is approximately U-shaped in cross section, is designed in its dimensions such that it has the largest diameter (approximately 1 mm.) Of the wire 18 to be processed ) still includes game.
  • the opening of the recess 42 is denoted by 44 and its dimensions are also so large that the wire section 10 cut from the wire 18 can fall freely downward from the recess 42.
  • the opening 44 is arranged slightly below the outlet 36, so that the initial region of the wire 18 pushed into the recess 42 comes to lie within the latter.
  • the recess 42 is formed deeper at the end facing the outlet 36 than at the end remote from the outlet 36, which ensures that even wire 18 inserted obliquely upwards into the recess 42 is aligned such that it is approximately parallel to the opening 44 and thus in Longitudinal direction of the wire guide element 34 extends.
  • the wire guide element 34 is shown enlarged in FIGS. 4 and 5.
  • This has an approximately hollow cylindrical tube part 46 which is inserted into a bore 48 in the feed direction B of a holding plate 48 'projecting from the bearing block 32 and is clamped in this by means of a screw 50.
  • a guide sleeve 52 is inserted into the tube part 46, the input 52 'of which is conically tapered in order to guide the wire start into the guide bore 52' 'adjoining the input 52' when the wire 18 is inserted.
  • a peg-shaped guide member 54 is inserted into the end region of the tubular part 46, which is remote from the guide sleeve 52 and is held in the tubular part 46 by means of a screw 50 'penetrating the wall of the tubular part 46 in the radial direction.
  • the guide member 54 has a passage 56 which is round in cross section and extends in the feed direction B and which tapers in a nozzle-like manner essentially from the free cross section of the tube part 46 to a cylindrical passage part 56 '.
  • the free cross section of the guide bore 52 ′′ and the passage part 56 ′ is slightly larger than the diameter of the thickest wire 18 to be processed.
  • the end of the passage 56 forms the outlet designated by 36.
  • a shaft 58 penetrates the tubular part 46 between the guide sleeve 52 and the guide member 54, the axis of the shaft 58, which is denoted by 58 'and indicated by dash-dotted lines, running approximately horizontally and at right angles to the feed direction B.
  • the shaft 58 is tapered in cross-section, this tapered shaft part 58''being arranged eccentrically with respect to the axis 58'.
  • the shaft 58 formed at one end with a head 60 can be rotated about the axis 58 'and can be fixed in the desired rotational position by means of a nut 60' which is opposite the head 60 with respect to the tube part 46 and is screwed onto the shaft 58.
  • the shaft part 58 ′′ forms a guide member which can be brought into abutment from above by twisting the shaft 58 against the wire 18 indicated by dashed lines in FIG. If the shaft part 58 ′′ is in its uppermost position, the wire 18 can run essentially in a straight line from the guide bore 52 ′′ to the passage part 56 ′. However, if the shaft part 58 ′′ is brought into position by dash-dotted lines in FIG.
  • the shaft part 58 ′′ exerts a force on the wire 18 which has a slight intrinsic curvature, which causes the wire to rotate about its longitudinal extent, so that the intrinsic curvature is directed upwards.
  • the takeover device 16 (FIGS. 1, 2, 6) has an in Direction of arrow D revolvingly driven takeover wheel 62, along the circumference of which takeover parts 64 are arranged resiliently biased in the radial direction towards the outside.
  • the axis of rotation 62 'of the take-over wheel 62 runs parallel to the feed direction B, so that the take-over parts 64 run past it at right angles to the longitudinal extent of the recess 42 in the receiving part 40.
  • a link 66 cooperating with the take-over parts 64 is fastened, in which the receiving part 40 is embedded in the central region, and its distance from the axis of rotation 62 'of the take-over wheel 62, seen in the direction of rotation D, forms an inlet on the start side, up to the receiving part 40 decreases and follows the receiving part 40, forming an outlet again increases.
  • each take-over part 64 which interacts with the link 66, is designed in the form of a sliding shoe and has in the central region a recess 68 which runs parallel to the axis of rotation 62' and whose trailing boundary, as seen in the direction of arrow D, forms a driving flank 68 'for the respective wire section 10 and in the bottom area of which a magnet 70 is provided for holding the wire section 10.
  • a take-over part 64 runs onto the link 66, it is pressed against the inside in the radial direction, so that the sliding-shoe-shaped end region 64 ′ bears against the link 66.
  • the movement of the take-over parts 64 in the direction of rotation D and of the knife 38 are synchronized with one another in such a way that the take-over part 64 each passing the recess 42 closes the opening 44 at the latest until a wire section 10 is cut off from the wire 18, so that the wire section 10 does not stop the recess 42 can fall out.
  • the position of a take-over part 64 which just closes the opening 44 is indicated by dashed lines in FIG. 6.
  • the wire section 10 then falls under the force of its own weight and is attracted downward by the magnet 70 into the passing recess 68, is held there by the magnet 70 and carried along by the driving flank 68 ', as is indicated by dash-dotted lines.
  • the cutting off of a wire section 10 may therefore at the earliest when the opening 44 is closed by a take-over part 64 and must be completed at the latest when the recess 68 runs past the opening 44, which certainly allows tolerances in the synchronization between the cutting device 24 and the take-over device 16.
  • a wire section straightening device 72 is arranged on the link 66, following the receiving part 40.
  • This has two spring steel plates 74 (FIGS. 1, 7, 8) which, viewed in the direction of the arrow D, are fastened to the guide 66 at their starting area by means of screws 76 on each side thereof.
  • the width of the link 66 is tapered like a shoulder and at its end region each spring steel plate 74 is penetrated by a screw 76 'screwed into the link 66.
  • Spring steel plate 74 and is aligned by this in the course of further movement in the direction of arrow D with respect to the take-over part 64 and pushed into the middle.
  • each take-over part 64 has a groove 78 running in the direction of rotation D (FIG. 6). If there is a take-over part 64 with a wire section 10 in the delivery position indicated in FIG. 1 by the dash-dot line 80, the stamp 22 of a stitching head runs in the direction of arrow A at a higher speed with respect to the peripheral speed of the take-over parts 64, engages in the groove 78 and detaches the corresponding wire section 10 from the recess 68 and takes it with it.
  • a wedge-shaped wire scraper 82 (FIG. 1) is provided upstream of the link 66 and engages in the grooves 78 when the take-over parts 64 pass by, in order to remove a wire section 10 which has not been correctly removed from a punch 22.
  • a drive shaft 84 is freely rotatably mounted on the bearing block 32 and is connected to the drive unit 12 via a toothed belt 86 (FIGS. 1, 2, 8, 9).
  • a gear 88 sits on the drive shaft 84 in a rotationally fixed manner and meshes with a further gear 88 ′ which is seated on a knife drive shaft 90 which is also mounted on the bearing block 32.
  • the knife drive shaft 90 has a pin 92 which is arranged eccentrically with respect to its axis of rotation 90 'and which is connected to a knife carriage 96 via a tab 94.
  • the knife carriage 96 is in a groove-shaped guide 98 in Holding plate 48 'in the direction of arrow C out and pushed out.
  • a clamping part 100 is clamped against the knife carriage 96 by means of a screw 102 in order to fasten the knife 38 to the knife carriage 96 in a cramped manner.
  • the screw 102 penetrates the clamping part 100 through an elongated hole 100 ′ running in the direction of the arrow C in order to adjust the clamping part 100 provided with a stop 100 ′′ for the knife 38 with respect to the knife carriage 96.
  • an adjusting shaft 104 is rotatably mounted in the knife carriage 96, from which an eccentrically arranged stub shaft 104 'penetrates the clamping part 100.
  • the position of the clamping part 100 and thus of the knife 38 with respect to the knife carriage 96 in the direction of arrow C can be adjusted sensitively by turning the adjusting shaft 104.
  • the clamping part 100 and the knife are then clamped again by tightening the screw 102.
  • a flywheel 106 is seated on the knife drive shaft 90 at the end region remote from the cutting device 24 in order to ensure that the device runs smoothly when the knife 38 hits the wire 18.
  • the feed device 28 Directly upstream of the wire guide element 34 is the feed device 28 with two feed wheels 110 and 112 delimiting a feed gap 108 for the wire 18.
  • the feed wheel 110 arranged above the wire 18 is seated on a freewheel 114 acting in the feed direction B (FIGS. 3 and 8), which in turn is seated on a bearing shaft 116 fastened to the bearing block 32 and rotatably mounted hollow cylindrical shaft stub 118.
  • the feed wheel 110 is driven in a stepwise rotation in the direction of arrow E via a four-bar linkage 120 (see in particular FIGS. 3, 8, 9), the rocker 122 of which is formed by a lever which is firmly connected to the stub shaft 118.
  • the free end of the rocker 122 is articulated to a coupling 124 which is mounted at the other end on a crank 126 which is non-rotatably mounted on the drive shaft 84 and is driven continuously in the direction of the arrow F.
  • the crank 126 is formed by a disc with a radial bearing groove 128 with an undercut 128 '.
  • a bearing carriage 130 is guided in the bearing groove 128 and is releasably clamped in its position with respect to the axis 84 'of the drive shaft 84 by means of a screw 134 screwed into it and penetrating a bearing journal 132.
  • the angle of rotation of the rocker 122 per revolution of the crank 126 can thus be adjusted by displacing the bearing slide 130 with respect to the axis 84 '. This setting therefore also gives the length of the initial section of the wire which is advanced through the outlet 36 into the recess 42 of the receiving part 40.
  • a braking device 136 acts on the feed wheel 110 by pressing a brake shoe 138 against the peripheral surface of the feed wheel 110.
  • the brake shoe 138 is slidably guided in the arrow direction C on two guide screws 140 running parallel to one another.
  • the guide screws 140 are arranged on a bracket 142 attached to the bearing block 32 and on their screw shafts are nuts 144, on which the brake shoe 138 is supported by compression springs 146 pressing against the feed wheel 110.
  • the braking force can thus be changed by changing the position of the nuts 144 can be set.
  • a gear 148 is laterally attached coaxially, the teeth of which mesh with each other and project in the radial direction over the feed wheels 110, 112 (cf. in particular FIG. 8).
  • the lower feed wheel 112 is thus operatively connected to the feed wheel 110 and is driven stepwise in the opposite direction in the direction of the arrow E '.
  • the lower feed wheel 112 is freely rotatable on a bearing shaft 152 arranged on a pressure lever 150.
  • the pressure lever 150 has two mutually parallel and spaced apart lever tabs 150 ', which run on both sides of the feed wheel 112 and on one end pivotally on a bearing pin 154 protruding from the bearing block 32 are stored. In the free end area, the two lever tabs 150 'are connected to one another by means of a bolt 156.
  • the upper end of a compression spring 158 is supported on the bolt 156 and is supported at the bottom on an adjusting screw 160 which can be adjusted in the vertical direction. The force with which the wire 18 is clamped between the two feed wheels 110, 112 can be adjusted by turning the adjusting screw 160.
  • a lifting shaft 162 In the longitudinal direction of the pressure lever 150, a lifting shaft 162, the axis of which is designated 162 ', is provided offset with respect to the axis 152' of the bearing shaft 152.
  • the lifting shaft 162 is freely rotatably mounted on the bearing block 32 and can be pivoted by means of a cylinder-piston unit 166 acting via a drive lever 164 (see Fig. 2).
  • a abutment surface 168 is formed on the lifting shaft 162, which is arranged above a shaft end 170 projecting in the direction toward the lifting shaft 162 via the relevant lever tab 150 ′.
  • the lifting shaft 162 In order to lift the lower feed wheel 112 off the wire 18, the lifting shaft 162 can be pivoted counterclockwise from the position shown in FIG.
  • the two feed wheels 110, 112 are preceded by a backstop 172 acting on the wire 18.
  • This has two non-rotatably mounted disks 174, 174 'which receive the wire 18 between them, the lower disk 174 being fixed in position on the bearing block 32 and the other disk 174' being arranged at the free end of a lever 176 indicated by dash-dotted lines and pivoted on the bearing block 32 is.
  • the lever 176 is prestressed clockwise (FIG. 3) by means of a tension spring 178 shown in FIG. 9. Since the angle between the wire 18 and the longitudinal direction of the lever 176 is almost 90 °, the spring can be applied by means of a relatively small force 178 a large clamping force can be exerted on the wire 18.
  • the backstop 172 is covered by a cover element 180, which has a window for the two disks 174, 174 'and closes a guide channel 182 for the wire 18.
  • the cover element 180 is adapted to the contour of the feed wheels 110, 112 in order to guide the wire 18 in the guide channel 182 up to the vicinity of the feed gap 108.
  • the wire 18 is unwound from a supply roll in a known manner and conducted in a flexible hose 184 to the beginning of the guide channel 182.
  • the end region of the hose 184 on this side is held in a connecting sleeve 186 which is inserted into a tubular adapter 190 fastened to the bearing block 32.
  • the drive unit 12 (FIGS. 1 and 2) is fastened to a frame 192 and is box-shaped, the walls serving as bearing plates for the shafts.
  • the bearing block 32 is fastened to one of these end shields, namely to the end shield 30.
  • An output axis 194 running parallel to the axis of rotation 62 'of the take-over wheel 62 is connected to a schematically indicated drive 196.
  • the toothed belt 86 ' is guided around two deflection wheels 198, on the one hand to tension the toothed belt 86' and on the other hand to ensure free access to the wire section dispensing unit 14 and to the take-over wheel 62.
  • the toothed belt 86 which is operatively connected to the drive shaft 84 of the wire section dispensing unit 14, is around a further driven wheel 196 '', which sits on a shaft 200 running at right angles to the output axis 194 in a rotationally fixed manner.
  • This shaft 200 is coupled to the output axis 194 via a bevel gear transmission 202.
  • the device shown in Figures 1 to 9 operates as follows. To insert the wire 18, the cylinder-piston unit 166 is activated, as a result of which the lifting shaft 162 is pivoted clockwise in FIG. 2 and counterclockwise in FIG. 3. The stop surface 168 presses the stub shaft 170 downward, as a result of which the feed wheel 112 is lifted off the stationary feed wheel 110 by pivoting the pressure lever 150. The wire 18 fed through the hose 184 automatically runs into the guide channel 182 at its beginning. It should be noted that all inlets or transitions along the guide path of the wire 18, as seen in the feed direction B, are conically tapered and thus there are no stop surfaces in the way of the start of the wire.
  • the wire 18 is advanced by means of the feed device 28 by a section predetermined by the effective length of the crank 126 during half a revolution of the crank 126. During the remaining half turn of crank 126, wire 18 is stationary. A return of the wire 18 is prevented by the backstop 172, and the braking device 136 ensures a defined braking of the advancement of the wire 18 when the direction of the rocker 122 is reversed accordingly.
  • the beginning of the wire becomes Controlled wire guide element 34 advanced into the recess 42 in the receiving part 40.
  • the knife 38 cuts the wire section 10 from the wire 18 in cooperation with the outlet 36. It should be noted that the knife 38 is withdrawn from the area of the outlet 36 during the wire feed.
  • the drive wheel 62 is driven synchronously with the wire section dispensing unit 14 by the drive 196.
  • the opening 44 of the recess 42 is closed by a passage part 64 passing by.
  • the cut wire section 10 falls on the take-over part 64 in its recess 68, is held there by means of the magnet 70 and the entraining flank 68 'is conveyed away.
  • the feed device 28 can now advance the wire 18 a further step.
  • the Takeover wheel 62 is continuously moved by a twelfth of a revolution, so that each takeover part 64 is fed with a wire section 10 as it passes the receiving part 40.
  • the wire section 10 is shifted into the correct position, if necessary.
  • a take-over part 64 runs past the delivery position, the corresponding wire section 10 is taken over by the stamp 22 passing faster in the direction of arrow A, whereby the corresponding take-over part 64 is ready for receiving a new wire section 10.
  • the take-over part can move along any path that leads past the take-up part.
  • the wire section is preferably pulled against it by means of a magnet in the receiving part.
  • a plunger or gripper it is also conceivable to provide a plunger or gripper in order to bring the wire section lying loosely in the recess to the take-over part.

Claims (17)

  1. Dispositif de préparation de segments de fil (10), à partir d'un fil (18), pour un appareil de brochage (20) servant à brocher ensemble des produits imprimés à feuilles multiples, par exemple des journaux, des périodiques et similaires, et incluant une unité distributrice (14) de segments de fils qui comporte un dispositif coupeur (24), un élément d'amenée (26) incluant un dispositif d'avance (28) qui sert à amener pas-à-pas un fil (18) au dispositif coupeur (24) et un élément récepteur (40) qui suit ce dernier pour recevoir un segment de fil (10) séparé du fil (18) au moyen du dispositif coupeur (24), et incluant un élément de prise en charge (64) qui peut passer près de l'élément récepteur (40) sensiblement à angle droit par rapport à la dimension longitudinale du segment de fil (10) de manière à prendre en charge et transférer le segment de fil (10), caractérisé en ce que l'élément récepteur (40) présente un évidement (42) en forme d'encoche, aligné avec l'élément d'amenée (26), qui entoure en laissant un certain jeu la zone respective de début du fil (18) qui peut y être introduite et dont l'ouverture (44), qui laisse passer librement le segment de fil (10) pour qu'il soit pris en charge par l'élément de prise en charge (64) et dont le tracé correspond à la direction longitudinale de l'évidement (42), peut être fermée au plus tard jusqu'à la fin du processus de coupe par l'élément de prise en charge (64) qui peut passer près de l'élément récepteur.
  2. Dispositif selon la revendication 1, caractérisé en ce que l'évidement (42) présente, vu selon la direction d'amenée (B), une profondeur plus grande au début qu ' à la fin.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que l'élément de prise en charge (64) comporte, pour l'entraînement et le maintien du segment de fil (10), un approfondissement (68) en forme d'encoche, de préférence limité par un flanc d'entraînement (68'), et un aimant (70).
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que l'élément d'amenée (26) comporte, en vue d'une introduction sûre de la zone de débit du fil (18) dans l'évidement (42), un élément de guidage réglable (34) de fil, disposé en amont de l'ensemble de coupeur (24), vu selon la direction d'amenée (B).
  5. Dispositif selon la revendication 4, caractérisé en ce que l'élément de guidage (34) de fil comporte une sortie (36), de préférence en forme de buse, pour le fil (18) et un organe de guidage réglable en position, monté en amont de cette sortie, vu selon la direction d'amenée (B), à peu près perpendiculairement au fil (18) et susceptible d'être amené à agir sur celui-ci afin d'assurer que le début du fil reste dans l'évidement (42) lorsqu'il est avancé.
  6. Dispositif selon la revendication 5, caractérisé en ce que l'organe de guidage comporte un élément d'arbre (58'') qui est situé en direction axiale à distance d'un arbre (58), susceptible de tourner autour de son axe longitudinal (58') de tracé perpendiculaire au fil (18), monté de façon excentrique sur cet arbre, et pouvant être amené à agir sur le fil (18) par rotation de l'arbre (58).
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que le dispositif coupeur (24) comprend un couteau (38) de préférence émoussé qui coopère avec l'élément d'amenée (26) ou avec la sortie (38) de manière à couper le fil (18).
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce que le dispositif d'avance (28) comporte deux roues d'avance (110, 112) qui délimitent une fente d'avance (108) destinée au fil (18), au moins l'une (110) des deux roues étant reliée aux bras oscillant (122) d'un quadrilatère articulé (120) par un axe libre (114) agissant dans la direction d'amenée (B).
  9. Dispositif selon la revendication 8, caractérisé en ce que la longueur effective du vilebrequin (126) du quadrilatère articulé (120) est réglable de manière à régler l'avance du fil (18) qui correspond à une rotation du vilebrequin (126).
  10. Dispositif selon la revendication 8 ou 9, caractérisé par un dispositif de freinage (136) qui peut être amené à agir sur au moins l'une des roues d'avance (110).
  11. Dispositif selon l'une des revendications 8 à 10, caractérisé en ce que l'une des roues d'avance (112) est montée sur un levier d'appui (150) logé de façon fixe à pivotement et sollicité contre l'autre roue d'avance (110) et en ce qu'il est prévu un arbre de relevage (162) à surface de butée (168), qui est logé de façon fixe en étant décalé par rapport à l'axe de rotation (152') de cette roue d'avance (112) à peu près dans la direction longitudinale du levier d'appui (150) et qui peut être amené, de manière à lever cette roue d'avance (112), à reposer sur l'arbre de palier (152) de cette roue d'avance (112) ou sur le levier d'appui (150) en opposition à la direction de sollicitation par rotation de l'arbre de relevage (162).
  12. Dispositif selon l'une des revendication 1 à 11, caractérisé par un cliquet anti-recul (172) agissant en opposition à la direction d'amenée (B) sur le fil (18).
  13. Dispositif selon l'une des revendication 1 à 3, caractérisé en ce qu'un dispositif orienteur (72) de segment de fil, qui comprend de préférence deux éléments orientables latéraux (74) dont les positions sont réglables transversalement à la direction des déplacements (D), est monté en aval de l'évidement (42), vu selon la position de déplacement (D) de l'élément de prise en charge (64).
  14. Dispositif selon la revendication 7, caractérisé en ce que le couteau (38) est fixé, de préférence de façon réglable au moyen d'un excentrique (104), à une coulisse (96) qui peut être entraînée en va-et-vient.
  15. Dispositif selon l'une des revendications 1 à 14, caractérisé en ce que l'élément de prise en charge est disposé sur une tête de brochage d'un appareil de brochage (20).
  16. Dispositif selon l'une des revendications 1 à 14, caractérisé en ce que l'élément de prise en charge (64) est disposé sur un élément transporteur (62) entrainé de préférence en continu.
  17. Dispositif selon la revendication 1 ou 2, caractérisé en ce que l'évidement (42) est ouvert vers le bas.
EP91100341A 1990-02-13 1991-01-12 Dispositif de préparation de morceaux de fil métallique pour appareil de brochage Expired - Lifetime EP0442264B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH46090 1990-02-13
CH460/90 1990-02-13

Publications (2)

Publication Number Publication Date
EP0442264A1 EP0442264A1 (fr) 1991-08-21
EP0442264B1 true EP0442264B1 (fr) 1994-12-07

Family

ID=4187519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91100341A Expired - Lifetime EP0442264B1 (fr) 1990-02-13 1991-01-12 Dispositif de préparation de morceaux de fil métallique pour appareil de brochage

Country Status (10)

Country Link
US (1) US5113732A (fr)
EP (1) EP0442264B1 (fr)
JP (1) JPH04214395A (fr)
AT (1) ATE115055T1 (fr)
AU (1) AU630020B2 (fr)
CA (1) CA2036185A1 (fr)
DE (1) DE59103731D1 (fr)
ES (1) ES2064775T3 (fr)
FI (1) FI910673A (fr)
RU (1) RU1838159C (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2117323T3 (es) * 1994-05-25 1998-08-01 Ferag Ag Dispositivo de corte con un elemento de corte en forma de disco.
ES2105813T3 (es) * 1994-07-06 1997-10-16 Ferag Ag Dispositivo para coser con grapas productos impresos.
US7159746B2 (en) * 2003-09-26 2007-01-09 Duff William G Staple-forming apparatus
JP4613602B2 (ja) * 2004-12-15 2011-01-19 マックス株式会社 ステープラーにおけるステープルカートリッジ及びステープル脚切断屑処理装置
CN110227777A (zh) * 2019-06-20 2019-09-13 诸暨市斯博申机电设备设计有限公司 一种钉子生产设备
US20230031467A1 (en) * 2021-07-28 2023-02-02 Frederick Worth Creech, JR. Shoreline stabilization device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB637745A (en) * 1947-01-22 1950-05-24 Crown Cork & Seal Co Improvements in or relating to the production of closures for containers
GB635745A (en) * 1947-11-06 1950-04-12 Timsons Ltd Improvements in or relating to stapling mechanism for binding together folded sheets
FR1073486A (fr) * 1952-01-08 1954-09-27 Crabtree & Sons Ltd R Mécanisme d'agrafage
FR1220597A (fr) * 1958-04-19 1960-05-25 Maschf Augsburg Nuernberg Ag Dispositif de cisaillage du fil sur les brocheuses des machines à imprimer
GB877596A (en) * 1958-10-27 1961-09-13 Fanfold Ltd Improvements in or relating to stapling devices
SE353673B (fr) * 1970-04-06 1973-02-12 Tolerans Ab
US3653570A (en) * 1970-05-15 1972-04-04 Strachan & Henshaw Ltd Stitching machine
DE2755209C2 (de) * 1977-12-10 1982-09-02 Koenig & Bauer AG, 8700 Würzburg Drahtheftvorrichtung
DE2835510C2 (de) * 1978-08-12 1982-08-05 Koenig & Bauer AG, 8700 Würzburg Drahtheftvorrichtung

Also Published As

Publication number Publication date
ATE115055T1 (de) 1994-12-15
US5113732A (en) 1992-05-19
JPH04214395A (ja) 1992-08-05
ES2064775T3 (es) 1995-02-01
RU1838159C (ru) 1993-08-30
FI910673A0 (fi) 1991-02-12
AU630020B2 (en) 1992-10-15
DE59103731D1 (de) 1995-01-19
CA2036185A1 (fr) 1991-08-14
AU7090391A (en) 1991-08-15
EP0442264A1 (fr) 1991-08-21
FI910673A (fi) 1991-08-14

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