EP0023985B1 - Dispositif de brochage pour machines d'impression - Google Patents

Dispositif de brochage pour machines d'impression Download PDF

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Publication number
EP0023985B1
EP0023985B1 EP19800104178 EP80104178A EP0023985B1 EP 0023985 B1 EP0023985 B1 EP 0023985B1 EP 19800104178 EP19800104178 EP 19800104178 EP 80104178 A EP80104178 A EP 80104178A EP 0023985 B1 EP0023985 B1 EP 0023985B1
Authority
EP
European Patent Office
Prior art keywords
stitching
wire
cylinder
die
staple
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
Application number
EP19800104178
Other languages
German (de)
English (en)
Other versions
EP0023985A1 (fr
Inventor
Godber Petersen
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0023985A1 publication Critical patent/EP0023985A1/fr
Application granted granted Critical
Publication of EP0023985B1 publication Critical patent/EP0023985B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/64—Collecting
    • B41F13/66—Collecting and stapling
    • 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

  • the invention relates to a wire stitching device for printing presses with a rotating stitching cylinder, onto which a cut piece of wire is transferred and formed into a clip by means of a die and patrix which can be moved relative to one another on the stitching cylinder and is inserted into the product to be stapled, the patrix acting as a driver for the piece of wire to be transferred is trained.
  • DE-C 1 068 217 and US-A 3 040 324 describe a wire stitching machine with automatic staple formation on printing presses with a rotating stitching cylinder, in which a stitching part can be moved in and out depending on the rotation, and a circular knife for cutting the stitching wire is fastened.
  • the stapling is carried out in such a way that the stitching wire to be formed is inserted into a gap between a stitching horn and the stitching cylinder, grooves in the stitching horn serving as a guide in conjunction with a resilient tongue.
  • a staple piston moves up and down in the stapling cylinder during each revolution.
  • the rotating staple cylinder after cutting the wire through a protruding nose of a staple piston and the staple horn, forms the legs of the staple and conveys the staple along the staple horn towards a collecting cylinder, where the collected sheets are stapled in a known manner.
  • a stapling horn is disadvantageous for several reasons. Once the forming staple is pressed against the stationary stapling horn at full paper speed with the force required to bend the stapling wire. Mainly the edges of the stapling horn are exposed to high abrasion and wear. The yeast horn must therefore be hardened and ground, which causes considerable manufacturing costs. It has to be very precisely adapted to the piston piston over its entire length. A strip of the plunger fork causes heat and seizure. Furthermore, the tip of the horn is very prone to breakage in paper stoppers.
  • a corresponding stapling device for rotary printing presses is known, for example, from DE-B 1 561 092.
  • the piece of wire drawn from a roll and cut to the elongated length of the clip that is to be automatically formed is transferred to a circumferential stitching cylinder that has a curve-controlled die used to form the clip and a male part designed as a single-arm swivel lever, as well as the wrapping of the clip into it contains tacking product causing driver's pestle, which is radially displaceable from the die base by curve control in the stitching cylinder.
  • the cut-off piece of wire is transferred by a driver to the stapling cylinder, which is formed on the male, after which the female is pushed radially outward over the male by the associated cam control for staple formation and the driver's plunger is then actuated.
  • This known stapling device has the disadvantage that considerable shocks and vibrations can arise through the use of a driver's plunger, and that in addition to control movements for the transfer of the wire piece to the stapling cylinder including the matrix displacement to the outside, another separate cam-actuated control movement for driving in to carry out a stapling process the staple in the product to be stapled is required.
  • Another disadvantage is that with this device, stapling of products of different thicknesses is not possible without special adjustment measures.
  • a die part is provided in the stitching cylinder as a die, which is resiliently biased radially outward into the transfer position and into which the die can be moved out of its driving position for the wire for the formation of staples, whereby this die movement in a plane perpendicular to the stitching cylinder axis by means of an open four-bar linkage with four articulated axes, one end of which is formed by the end of a first control arm, is fastened to a control spindle which can be rotated via connecting links by a cam roller which scans a control cam and rotates with the stapling cylinder, and the other by the end of a second one Handlebar lever-formed end is articulated to the clamp back, when the patrix moves downward into the die, receiving, height-adjustable stop part, which in its set position forms the die base that is stationary in the stitching cylinder, whereby the free ends of the first and second handlebar levers are articulated via a middle third handlebar lever, which
  • the stapling device With the stapling device according to the invention, high-speed stapling operations can be carried out without using a stapling horn guide, but the favorable stapling horn effect during stapling was retained during stapling. Another advantage is that the stapling device can be inserted into existing cylinders, e.g. Cutting cylinder, can be installed. Furthermore, the use of a fixed but height-adjustable die base connected to one end of the four-bar linkage, by means of which the clamp can be inserted into the stapling product due to the counter-rotation of the stapling cylinder and the counter-cylinder, eliminates the need for a separately controlled driver's plunger.
  • existing cylinders e.g. Cutting cylinder
  • a further significant advantage results from the height adjustment of the die base with one end of the four-bar linkage, because with a single simple adjustment, this enables adaptation to different-sized stitching products, both with regard to the distance between the die bottom and the stitching product, and the timing when the clip is transferred through the patrix is possible.
  • the clamp legs are guided through the die and male part until the piercing process, so that buckling of the clamp legs is avoided.
  • the wire stapling device in the wire stapling device according to the invention, it is possible in a simple manner to adapt the staple legs to products of different thicknesses to be stapled, so that they can be stapled securely without the risk that, for example due to the staple legs being too long, they might pierce through the paper back during the closing process or that, for example, if the clip legs are too short, the clip cannot be closed properly.
  • a stitching wire 1 coming from a storage roll (not shown) is fed through a transport roll 2, which interacts with a counter-roll 65 shown in FIG. 4, to a cutting nozzle 3, where it is fed by a cutting roll mounted in a housing 5 4 is cut off.
  • the housing 5 is mounted radially fixed but axially displaceable on a hollow spindle 6 which is driven by a stitching cylinder 136 (FIG. 2).
  • the drive comes via bevel gears from the axis 7 of the stitching cylinder 136 via a spindle 135 into the gear housing 8.
  • the spur gears 10 and 11 mounted on a hollow spindle 9 mesh with the firmly connected but radially loosely on one Spindle 12 mounted spur gears 13 and 14.
  • the spur gears 10 and 11 can be fixedly connected to the hollow spindle 9 by a pulling wedge 16 connected to a linkage 15 via a pinion 17, optionally by turning a hand crank 18.
  • the spindle 9 rotates one and a half times and the spindle 6 once. In this case, only one piece of wire is cut off per cylinder revolution.
  • the wire feed is adapted to the non-collective production or the collective production of the folding apparatus which cooperates with the stitching cylinder 136.
  • the stapling device staples two sheets per cylinder revolution. It therefore carries two stapling elements on the circumference of the stapling cylinder 136 and requires two pieces of wire per revolution.
  • the stapling device staples two sheets per cylinder revolution. It therefore carries two stapling elements on the circumference of the stapling cylinder 136 and requires two pieces of wire per revolution.
  • collective production only one staple and one piece of wire is required per cylinder revolution on the circumference.
  • stapling cylinder 136 For a suitable stapling, two staples are produced for each sheet on the axis 7 of the stapling cylinder 136, with which the staple is stapled. In Fig. 1, therefore, stitching and cutting device are available in duplicate.
  • the stapling cylinder 136 carries four stapling members, two of which are arranged diagonally, ie offset by 180 °, on the stapling cylinder 136.
  • two stapling elements lying next to one another are then stopped in order to reduce wear.
  • a piece of wire is fed only once around the circumference, if they are not deactivated, they cannot form brackets.
  • the staple length must be changed to staple paper of different thickness.
  • the process for cutting wire pieces to form the brackets with a selectable leg length is described below.
  • the center of the clip to be formed is indicated by line 21. Seen from this line 21, the length of the right half and the left half of the wire section must be selectively changeable.
  • a housing 25 is supported in mirror image fashion axially displaceably on a housing 33 via bearings 23.
  • the housing 22 or the housing 25 is thus axially fixed with respect to the housing 5 or the housing 33.
  • the linkages 27 and 28 shown in FIG. 4 connect the housings 22 and 25 to the eccentrics 29, 30.
  • the rods 27 and 28 lead to these eccentrics 29 and 30 which are offset by 180 ° and are arranged on a spindle 31.
  • the spindle 31 can be rotated by means of a hand crank 32 (FIGS. 1 and 5).
  • a hand crank 32 FIGS. 1 and 5
  • staples with three legs of different lengths should be able to be produced. This is possible by rotating the eccentrics 29 and 30 in three defined positions and a corresponding determination of three transport speeds for the transport roller 2.
  • the eccentricity of the eccentrics 29 and 30 is then directly proportional to the variable wire length.
  • three switching positions are fixed by the hand crank 32.
  • the housings 22 and 25 are moved in opposite directions to one another in the axial direction by the differently acting eccentrics 29 and 30 on the spindle 6 and can assume three defined positions analogously to the position of the hand crank 32.
  • the housings 22 and 25 are axially displaced by the hand crank 32, the housings 5 and 33 associated therewith are likewise carried axially in opposite directions via the fixed bearings 23.
  • the position of the cutting nozzle 3 relative to the cutting roller 4 thus remains unchanged and the cutting conditions, once set, remain the same.
  • the cutting roller 4 advantageously sits on a shaft 34 which is easily rotatably mounted in the housing 5 or in the second cutting and stapling device in the housing 33. It is pressed against a stop 36 by a compression spring 35. This stop is set such that when the housing 5 rotates, the cutting roller 4 resiliently runs onto the cutting nozzle 3 provided with a spherical run-up surface. This creates a scissor-like cut.
  • the resilient design enables self-adjustment in the event of wear and the rotating cutting roller ensures even wear on the circumference.
  • spur gears 37, 38, 39 (FIG. 5), which are seated in the gear housing 8 on the hollow spindle 9. These spur gears 37, 38 and 39 mesh spur gears 40, 41 and 42 loosely seated on the shaft 12.
  • the different pairings of the spur gears give different ratios by means of which the speed of the wire feed is changed.
  • the respective spur gear pairs 37-40, 38-41 and 39-42 are always firmly engaged.
  • One of the spur gears 40, 41 or 42 can now be firmly connected to the shaft 12 via a pull wedge 43 connected to a linkage 44.
  • the transport roller 2 is driven at a speed which can be determined by the selection of one of the spur gears 40 to 42 from the shaft 12 via spur gears 45 and 46, the shaft 47 mounted in the hollow spindle 9, the bevel gears 48 and 49, the spur gears 50, 51 , 52, 53 and the bevel gears 54 and 55 to the transport roller 2, which in turn is firmly connected to the spur gear 56 and thus drives the spring-loaded transport roller 65 via a corresponding spur gear.
  • a spindle 57 which is mounted in the hollow spindle 6, transmits the drive to the left side of the stapling device to the second pair of transport rollers.
  • the linkage 44 is moved by a pinion shaft 58, which in turn is connected to the spindle 31 via spur gears 59, 60 and 61.
  • the housings 5 and 25 can be axially displaced on the hollow spindle 6, whereby the desired distance on the right side of the center line 21 from the latter to the cutting nozzle 3 and the cutting roller 4 can be adjusted, and on the other hand the corresponding selection the spur gear pairs hit on the hollow spindle 9 and the drive shaft 12, so that the wire feed takes place at a speed which fixes the wire length to the left of the reference line 21 to a dimension which is identical to the wire length to the right of the center line 21.
  • This enables a simple and safe changeover according to the products to be stapled.
  • the hollow spindle 9 can be switched via the spur gears 10 and 11 or 13 and 14 in the sense of collecting-non-collecting, the wire feed also takes place depending on the operating mode collecting or non-collecting. As stated at the beginning, this is a further essential advantage which additionally increases the security of the stapling device.
  • the spur gear 53 is widened compared to the other spur gears.
  • the longitudinal displaceability of the housings 22 and 25 is made possible in the case of fixed tooth engagement and, on the other hand, the shaft 62 is thereby displaceable in the longitudinal direction.
  • the removal of the transport roller is thus facilitated in that, after a cover 63 has been removed, the bevel gear 54 which is firmly seated on the shaft 62 is pressed in the axial direction against the force of the spring 64. This frees the bevel gear 55 and can be easily removed together with the transport roller 2 for replacement.
  • FIG. 4 shows the mounting of the second transport roller 65, which is mounted on the bolt 66, which in turn is carried by the housing 22 in a longitudinally displaceable manner and presses the transport roller 65 against the transport roller 2 by means of the spring 67.
  • This will transport the stitching wire.
  • the wedge lock 69 of the pin 66 is released by actuating a lifting magnet 68.
  • the spring 67 can now relax and the transport roller 65 is no longer pressed against the transport roller 2.
  • the wire transport is interrupted.
  • the spring 67 is tensioned again and the wedge lock engages, as a result of which the wire transport is resumed.
  • the stitching wire When cutting, which is done here at a relatively low cutting speed, the stitching wire cannot penetrate forward during the engagement of the cutting roller. However, it is continuously advanced by the transport rollers 62 and 65 and must be able to evade. As FIG. 4 shows, an arcuate recess 71 is therefore provided in the housing 22, which is only slightly deeper than the stitching wire thickness. This forces the wire to dodge in only one plane, which is mandatory due to the recess.
  • the recess is dimensioned so that on the one hand the buckling is supported by the cutting pressure of the cutting roller, i.e. the cutting pressure supports the bulging, on the other hand the wire does not get any permanent deformation and can relax elastically after removing the cutting roller. In the event of faults, the recess 71 is accessible via a flap 72.
  • the stitching wire is pushed between the rigid tongue 73 and the resilient tongue 74 before cutting.
  • the carrier 76 connects the gear housings 8 and 26 to form a unit which is fastened to the walls 77 and 78 of the folding device (FIG. 1) and is easily replaceable.
  • the cut piece of wire is taken over by a gripper consisting of a rigid tongue 79 and a resilient tongue 80, wherein it is pulled out of the tongues 73 and 74 and clamped between the tongues 79 and 80.
  • These tongues sit on a holder 81 which is clamped on the hollow spindle 6 and thus rotates with the hollow spindle 6.
  • the clamping allows an adjustment in the circumferential direction in order to ensure the cyclical transmission to the stapling elements.
  • the cutting roller 4 lies just before the gripper consisting of the rigid tongue 79 and the resilient tongue 80, since it first has to cut the wire.
  • the position of the cutting roller 4 can be adjusted in the circumferential direction by a clamp connection 82 (FIG. 1).
  • the cutting and transfer device can thus be optimally coordinated with the stapling device.
  • FIG. 2 shows the device for stapling and for inserting the staple into the paper web.
  • the right picture shows the stapling device which is wide for taking over the piece of wire from the gripper 79, 80. It consists of an "open four-bar linkage", the suspension points of which are the articulation axis 83 and the articulation axis 84.
  • Handlebar levers 85 and 86 carry, via hinge axes 87 and 88, the handlebar lever 89 ', a tongue which acts as a male part 89 and is arranged such that it can be easily rotated via bearings 90 on the hinge axes 87 and '88.
  • the control arm 89 'thus lies in the four-bar linkage between the control levers 85, 86.
  • the control levers 85 and 86 enclose the male part 89 on their control arm 89' in a fork shape.
  • a cam roller 92 scanning a control cam 91 controls the articulation axis 83.
  • the control movement is transmitted from the cam roller 92 via the roller lever 93, the articulation axis 94 and the tappet levers 95 and 96 with tappet 97 (FIGS. 5 and 1).
  • the bearing of the handlebar levers 85 and 86 at different points and their different lengths result in an extremely advantageous pivoting movement of the male part 89.
  • the plate acting as the female part 98 is seated on small pistons 99 and 100 (FIG.
  • the male part 89 together with the female part 98, takes over in a circular path the piece of wire previously cut to a desired length by the gripper 79, 80, whereby the Gripper with its tongues 79 and 80 rotates in opposite directions at a lower peripheral speed than the die 98 and the die 89.
  • the male part 89 and the female part 98 are in the rest position during the takeover process. The wire piece is therefore only taken over as a result of greater peripheral speed of the male part 89 and the female part 98, the wire piece being pulled out of the tongues 79 and 80 of the gripper.
  • the male part 89 performs a rapid downward movement due to the shape of the control cam 91, i.e. into the interior of the cylinder, pulling the piece of wire between the legs of the die 98, which is still at rest.
  • the springs 105 form the abutment.
  • the die 98 is provided with grooves 106, which serve as a leg guide during the staple formation.
  • the die 98 remains at rest until the provisional end of the rapid downward movement of the male 89, while the male 89 swivels slightly and pulls the wire into the grooves 106 of the female 98 with its lower slope.
  • the formation of the clamp legs 111 is thus completed.
  • the middle picture in FIG. 6 represents this point in time.
  • the back of the clamp comes to rest on the stop part 107 which forms the die bottom and has a corresponding groove.
  • the staple now formed With the guides enclosing it on all sides, approaches the inside through the patrix 89 and the outside through the die 98, the paper web 112, which rests on a counter cylinder 108 (FIG. 2) is preferably designed as a collecting cylinder.
  • the downward movement of the male part 89 has been greatly reduced.
  • it takes the die 98 into the interior of the stapling cylinder 136.
  • the stops for entrainment form the rollers 109, which sit on the extended hinge axis 87.
  • rollers 109 approach the stops 110 on the pistons 99 and 100 and take them with them as gently as possible and, by rolling, compensate for the relative movement between the circular path of the articulated axis 87 and the straight path of the pistons 99 and 100. So that the impact is small, the approach of the stops on the male part 89 extends over the largest possible angle of rotation of the stitching cylinder 136, starting from the rapid downward movement immediately after taking over the piece of wire until it hits the paper web 112 (FIG. 6).
  • the rollers 109 for damping are preferably made of an elastic, but high-strength, tough plastic. In order to keep the angle of rotation as large as possible in the critical area of the approach, the wire feed is offset by 180 ° from the puncture points, as shown in FIG. 2.
  • the advantageous course of the piercing process by using the open four-bar linkage is described below.
  • the lower picture in FIG. 6 shows the course of the insertion into the paper web 112.
  • the male part 89 and the female part 98 now move downwards uniformly, i. H. into the interior of the stapling cylinder 136.
  • the clamp legs 111 are supported on the inside by the male part 89 and on the outside by the female part 98 in the form of a male-female guide. This support or guidance is available until just before the puncture end point. It effectively prevents the legs from buckling during the piercing process.
  • the male part 89 swings backwards, finally finally completely releasing the clamp, which rests with its back on the stop part 107 and, due to the rotational movement of the stapling cylinder 136 and the collecting cylinder 108, which is rectified at the point of contact, without its own movement Bridge is pressed into the paper web 112.
  • the bracket is e.g. closed with the help of a so-called oat grain closer 113 in the collecting cylinder 108 (FIG. 2).
  • the downward movement of the male part 89 and the female part 98 is completed at the puncture end point. This is shown in Fig. 6 in the left picture.
  • the male part 89 and the female part 98 are returned to the starting position for receiving the next piece of wire, as shown in FIG. 2.
  • the stops 110 FIG. 3
  • This approach to the guide 101 to 102 takes place again, in the opposite way to the downward movement, at the lowest possible speed in order to mitigate the impact.
  • the largest possible area of the rotation angle of the stapling cylinder 136 is used. After the pistons 99 and 100 and with them the die 98 have reached the highest point, the die 89 is returned to the receiving position with a rapid upward movement.
  • the stapling device is adapted to different paper thicknesses only by adjusting the stop part 107 in the longitudinal direction of the staple legs, ie by raising or lowering it, the center of the stapling cylinder 136 not being changed.
  • the stop part 107 is connected to a carrier 114, which preferably carries two stop parts 107 for the two stapling members used, as shown in FIG. 1.
  • the carrier 114 sits on an inclined plane 115 of a holder 116.
  • the holder 116 again preferably has two inclined planes 115, which are offset by 180 ° to one another, so that the carrier 114 required for the second stapling members, the to the two stapling elements shown in FIG. 1 1 are arranged offset by 180 ° on the stapling cylinder 136, can also be moved.
  • the holder 116 with the inclined plane 115 is moved back and forth via a linkage 117, which is arranged in the cylinder axis 7, with the aid of an adjusting device (FIG. 1).
  • the axial bearing 118 simultaneously permits a rotary movement of the stapling cylinder 136 if the control movement is carried out by a handwheel 119, which is also automated by means of an electric motor can, via the radially supported but axially movable threaded bushing 121 in the housing 120. It is therefore possible to correct the adjustment 136 while the stapling cylinder is running.
  • the carrier 114 is supported laterally by the guides 101 and 102 (FIG. 2), while the spring 123 (FIG. 1), which is held by the bolt 124, presses the carrier 114 onto the inclined plane 115 and thus against it keeps the centrifugal force. At higher centrifugal forces, for example, a T-groove-shaped encirclement of carrier 114 and inclined plane 115 is also conceivable.
  • the lower hinge point of the four-bar linkage i.e. H. the hinge axis 84, as can be seen in FIG. 2, is mounted as an eccentric bolt in the height-adjustable carrier 114. It therefore takes part in the upward and downward movement when adjusting the carrier 114. As a result, the deflection of the male part 89 is changed such that it is adapted to the position of the stop part 107, which is also changed, and that, in addition, an optimal guidance of the clamp legs in the region of the insertion is adapted to the adjustment.
  • the hinge axis 84 allows the tongue to be adjusted to a certain extent. As can further be seen from FIG. 2, the pick-up point for the piece of wire is not changed since the handlebar lever 85 and the die 98 remain at rest.
  • the pivoting of the male part 89 is minimal, since the lower suspension point of the four-bar linkage, that is the articulation axis 84, hardly results in a deflection of the lower suspension point of the male part 89 during an up and down movement.
  • control cam 91 is slightly rotated after adjusting the various staple leg lengths via the hand crank 32 (FIG. 1) with the help of the extended spindle 31 of the bevel gears 125 and the pinion shaft 126 Clamping ring 127 has been released.
  • This rotation of the control curve 91 results in a temporal adaptation of the movement of the male part 89 to the paper web thickness, since the point of impact of the staple is shifted in the case of thin webs, i.e. the clip will hit the booklet product at a later time.
  • the male part 89 then begins the downward movement a little later, which extends the guiding time when piercing and thus improves it. Since the control cam 91 has a radius in the area of the takeover that runs concentrically to the radius of the stitching cylinder 136, the position of the male part 89 is not changed here.
  • the downward movement of the male part 89 is designed immediately after taking over the piece of wire in such a way that the clamp with the longest legs is completely drawn into the female part 98. This path is always covered, even when using brackets with shorter legs.
  • the male part 89 and the female part 98 with the grooves 106 are dimensioned accordingly.
  • the devices for stapling and guiding are fastened on the plate 128, which together with the bearing blocks 129 for the articulated axis 83 forms an easily exchangeable cassette, which is shown here, for example, in a two-part knife cylinder, the knife bar 131 of which are used.
  • the stapling cassette is driven via the cylinder axis 7 of the knife cylinder 136 and works with the folding knife system, e.g. a collecting cylinder, together, while exchangeable knife bars 131 sit on sleeves 132 and 133 and are connected to the puncture system of the collecting cylinder 108 via a gearwheel 134.
  • the stapling cylinder 136 is fixedly mounted in the side walls 77 and 78.
  • the wire feeder is fastened as a compact unit to a carrier 76 and is easily removable if corresponding plug connections are provided in the lockers 31 and 135 (FIG. 5).

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)

Claims (10)

1. Dispositif de brochage au fil métallique pour machines d'impression, comportant un cylindre de brochage tournant (136) sur lequel on transfère un morceau de fil métallique (1) coupé à la longueur, on le transforme en agrafe au moyen d'une matrice (98) et d'un poinçon (89) pouvant se mouvoir l'un par rapport à l'autre sur le cylindre de brochage et on l'introduit dans le produit à brocher, le poinçon (89) étant conçu sous forme d'entraîneur pour le morceau de fil métallique à transférer, caractérisé en ce que comme matrice, est prévue dans le cylindre de brochage (136) une partie de matrice (98) soumise à une précharge élastique radialement vers l'extérieur et vers la position de transfert et dans laquelle le poinçon (89) peut pénétrer en partant de sa position d'entraînement du fil métallique (1) pour la formation de l'agrafe, ce mouvement du poinçon s'effectuant dans un plan perpendiculaire à l'axe du cylindre de brochage, au moyen d'un quadrilatère articulé ouvert à quatre axes d'articulation (83, 84, 87, 88) dont l'une des extrémités formée par l'extrémité d'un premier levier d'articulation (85) est fixée sur une tige de commande (83) qui peut dévier par l'intermédiaire d'éléments de liaison (93 à 97) sous l'action d'un galet de came (92) palpant une came de commande (91) et tournant avec le cylindre de brochage (136), et dont l'autre extrémité, formée par l'extrémité d'un deuxième levier d'articulation (86), est reliée de façon articulée (en 84) à un élément de butée (107) réglable en hauteur qui reçoit le dos de l'agrafe lorsque le poinçon (89) se déplace vers le bas et vers l'intérieur de la matrice (98), l'élément de butée formant dans sa position réglée le fond de matrice, en position fixe dans le cylindre de brochage, les extrémités libres des premier et deuxième leviers d'articulation (85, 86) étant reliées de façon articulée (en 87 et 88), par l'intermédiaire d'un troisième levier d'articulation central (89') qui porte aussi le poinçon (89) et qui, à la phase finale du mouvement du poinçon vers l'intérieur de la matrice, entraîne la matrice (98) en s'opposant à sa précharge vers l'intérieur du cylindre de brochage à l'aide d'un entraîneur (109,110), de sorte que les branches de l'agrafe se libèrent graduellement tandis que le poinçon (89) s'écarte latéralement de la matrice (98), et pénètrent ainsi dans le produit (112) à brocher.
2. Dispositif de brochage au fil métallique selon la revendication 1, caractérisé en ce que le morceau de fil métallique peut être repris d'une pince (79, 80) par le poinçon (89) et la matrice montée élastiquement (98), sur une trajectoire circulaire, après quoi, par le mouvement du poinçon (89) vers l'intérieur, la formation de l'agrafe est effectuée par les branches de la matrice (98).
3. Dispositif de brochage au fil métallique selon la revendication 2, caractérisé en ce que par suite de la forme donnée à la came de commande à position fixe (91), le poinçon (89), après le transfert du morceau de fil métallique sur le cylindre de brochage (136), exécute pour former t'agrafe, un mouvement rapide vers l'intérieur qui, avant que des galets (109) disposés en tant qu'entraîneurs sur l'axe d'articulation (87) n'atteignent des saillies (110) d'un montage de matrice (99, 100), se change en un mouvement d'approche lent.
4. Dispositif de brochage au fil métallique selon la revendication 3, caractérisé en ce que la partie de butée (107) est reliée à un support (114) qui est disposé sur un plan incliné (115) d'une monture (116) pouvant coulisser axialement dans l'axe (7) du cylindre de brochage (136), de sorte que la hauteur de la partie de butée (107) est réglable.
5. Dispositif de brochage au fil métallique selon la revendication 4, caractérisé en ce que le support (114) est poussé par un ressort de compression (123) contre le plan incliné (115) de la monture (116) ou entoure celui-ci suivant une rainure en forme de T pour absorber des forces centrifuges.
6. Dispositif de brochage au fil métallique selon la revendication 5, caractérisé en ce que la monture (116) peut coulisser axialement, manuellement ou automatiquement, par l'intermédiaire d'un tringlage (117) disposé dans l'axe creux (7) du cylindre.
7. Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'autre axe d'articulation (84) du quadrilatère articulé (83, 84, 85, 86, 87, 88), situé vers l'exrémité, est monté en tant que tourillon excentrique dans le support (114).
8. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la matrice (98) munie de rainures de guidage de branches (106) est montée sur deux pistons (99, 100) soutenus par des ressorts de compression (105) et qui peuvent coulisser le long des guides (101, 102) fixés sur des douilles élastiques (103, 104).
9. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la came de commande (91) peut être déviée en fonction de l'épaisseur du produit à brocher.
10. Dispositif selon l'une des revendications précédentes, caractérisé en ce que sur l'axe (7) du cylindre de brochage (136) sont prévus deux ou plusieurs dispositifs de brochage séparés comportant des poinçons (89) et des matrices (98) et que, sur le support (114) disposé sur un plan incliné (115), sont fixées les parties de butée (107) des deux dispositifs de brochage.
EP19800104178 1979-08-13 1980-07-17 Dispositif de brochage pour machines d'impression Expired EP0023985B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792932757 DE2932757C2 (de) 1979-08-13 1979-08-13 Heftvorrichtung für Druckmaschinen
DE2932757 1979-08-13

Publications (2)

Publication Number Publication Date
EP0023985A1 EP0023985A1 (fr) 1981-02-18
EP0023985B1 true EP0023985B1 (fr) 1984-02-15

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EP19800104178 Expired EP0023985B1 (fr) 1979-08-13 1980-07-17 Dispositif de brochage pour machines d'impression

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EP (1) EP0023985B1 (fr)
DE (1) DE2932757C2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3226907C2 (de) * 1982-07-17 1986-08-07 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Falz- und Klebevorrichtung für eine Rollenrotationsdruckmaschine
SE8700886D0 (sv) * 1987-03-03 1987-03-03 Elbyma Ab Heftanordning
DE4227930A1 (de) * 1992-08-22 1994-02-24 Frankenthal Ag Albert Vorrichtung zum Schneiden und Heften von mehrlagigen Druckprodukten in Falzapparaten
DE59602637D1 (de) * 1995-05-20 1999-09-09 Koenig & Bauer Ag Heftvorrichtung
DE19518652C2 (de) * 1995-05-20 1999-08-12 Koenig & Bauer Ag Vorrichtung zum Heften von Signaturen
DE102005044707A1 (de) * 2005-09-19 2007-03-22 Heidelberger Druckmaschinen Ag Heftvorrichtung
CN100415536C (zh) * 2005-12-31 2008-09-03 天津大学 全自动打孔装订设备及其方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068217B (de) * 1959-11-05 Maschinenfabrik Augsburg-Nürnberg A.G., Augsburg Drahtheftmaschine mit selbsttätiger Klammeibildung an Druckmaschinen
US2224743A (en) * 1937-10-07 1940-12-10 Goss Printing Press Co Ltd Rotary stitcher
US3040324A (en) * 1960-02-24 1962-06-26 Wood Newspaper Mach Corp High speed stitcher
DE1240890B (de) * 1962-09-14 1967-05-24 Albert Schnellpressen Heftzylinder fuer den Heftapparat von Rotations-Druckmaschinen
US3653570A (en) * 1970-05-15 1972-04-04 Strachan & Henshaw Ltd Stitching machine

Also Published As

Publication number Publication date
EP0023985A1 (fr) 1981-02-18
DE2932757C2 (de) 1982-03-25
DE2932757A1 (de) 1981-02-26

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