EP0205115A2 - Plieuse - Google Patents

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Publication number
EP0205115A2
EP0205115A2 EP86107675A EP86107675A EP0205115A2 EP 0205115 A2 EP0205115 A2 EP 0205115A2 EP 86107675 A EP86107675 A EP 86107675A EP 86107675 A EP86107675 A EP 86107675A EP 0205115 A2 EP0205115 A2 EP 0205115A2
Authority
EP
European Patent Office
Prior art keywords
folding
roller
folding device
transport
rollers
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.)
Granted
Application number
EP86107675A
Other languages
German (de)
English (en)
Other versions
EP0205115A3 (en
EP0205115B1 (fr
Inventor
Rudolf Stäb
Karl-Josef Hill
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.)
Albert Frankenthal AG
Original Assignee
Albert Frankenthal AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Albert Frankenthal AG filed Critical Albert Frankenthal AG
Publication of EP0205115A2 publication Critical patent/EP0205115A2/fr
Publication of EP0205115A3 publication Critical patent/EP0205115A3/de
Application granted granted Critical
Publication of EP0205115B1 publication Critical patent/EP0205115B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41F13/56—Folding or cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/28—Folding in combination with cutting

Definitions

  • the invention relates to a folder attached to a web-fed rotary printing press for the production of at least twice cross-folded products with egg. ner cross cutting device and at least two of these subordinate, successive cross folding devices.
  • a folder of this type is known from DE-AS 30 30 775.
  • both transverse folding devices are designed as flap folding devices working with folding knives and folding jaws.
  • the known arrangement accordingly consists of a combined, with jaws and folding knives provided cylinder, which is preceded by a cylinder provided with folding blades and a cylinder provided with folding jaws.
  • the folding knives and folding jaws are controlled assemblies.
  • the known arrangement therefore proves to be relatively complex and prone to failure.
  • the known arrangement also results in a not inconsiderable noise development due to the large number of controlled assemblies required here.
  • the folding knives of the combined cylinder must be adjustable to adapt to different formats on the circumference of the assigned cylinder, which further increases the construction effort and complicates the operation.
  • this object is achieved in that only one of the transverse folding devices is configured as a folding knife arranged on a cylinder and has a folding folder device which interacts with it and has folding flaps arranged on a downstream cylinder, and each additional transverse folding device is designed as an upset folding device, the three of which form the cylinders of the flap.
  • Penfalein raised parallel, driven with uneyemander the same peripheral speed rollers, the two offset on the circumference of the middle roller, adjustable transport nips and one of the middle roller Limit the opposite passage window flanked by the two outer, circumferentially spaced rollers, which is adjoined by a compression shaft which is open to the middle roller and extends over the entire length of the roller and consists of spaced-apart guide walls facing the outer rollers and an adjustable along these, their distance bridging stop web.
  • the rollers of the edging folding device are assemblies driven at a constant speed, the edging shaft is a simple, stationary assembly, which results in a simple and clear structure, as well as being very robust and thus also easy to maintain and operate.
  • a comparatively low noise level also advantageously results in the region of the upset folding device.
  • the stop web of the upsetting shaft is simply to be adjusted here, which can advantageously also be carried out during operation.
  • the flap folding device can form the first cross folding device following the cross cutting device and each further cross folding device can be designed as a compression folding device. After each cross fold, the transport speed of the products can be reduced by reducing the gaps between the individual products created during the previous cross fold.
  • the first compression seaming device forms the second transverse folding device, it is ensured that the products which have already been cross-folded can be fed to the first compression seaming device at a comparatively low speed, which protects the products starting in the area of the compression seaming device from the stop web and ensures a high degree of freedom from interference.
  • the present design of the superordinate measures therefore advantageously enables a high web speed and thus a high production speed.
  • the products are positively guided in the tried and tested manner, so that no faults are to be feared even at high speeds. This therefore ensures that a reduction in the speed of the sheets produced with the aid of the cross-cutting device and thus the splitting of these sheets over two or more transport paths is not necessary.
  • the successive transverse folding devices can be connected to one another by a multi-part belt guide that runs with its transport plane into the transport gap of the compression folding device facing the flap folding device, which has several toothed sections that have different speeds that decrease in the transport direction.
  • These measures advantageously result in an automatic reduction in the speed of the once cross-folded products during their transfer from the first to the second or further cross-folding device.
  • a further expedient measure can consist in that the front belts of the belt guide are guided around the rollers of the upsetting folder device facing the flap folder device. This results in a reliable feeding of the products into the upset folding device and a particularly simple drive of the front section of the tape guide at the desired speed.
  • the belts which are guided in grooves around the middle roller of the upsetting folding device, can run from the middle roller in the area of the second transport nip and in the area of the second transport nip in grooves around the roller which delimits the second transport nip together with the middle roller of the belts that are running together to form an ejection path leading to a delivery device.
  • These measures enable a targeted introduction of the twice cross-folded products into a paddle wheel.
  • the grooves assigned to the bands of the rollers delimiting the transport gap facing the paddle wheel advantageously result in. Area of the transport gap forming the second transverse fold a practically smooth roller surface and thus / a clean fold formation.
  • a further, advantageous embodiment of the superordinate measures can best be that the two outer rollers of the upset folding device are offset from one another by an angle of approximately 90 ° on the circumference of the middle roller. This also results in a displacement of the two transport gaps by approximately 90 °, which is very beneficial for the formation of the desired compression fold.
  • the upsetting can expediently shaft with its upper and lower guide walls be arranged approximately perpendicular to a plane containing the axes of the two outer rollers, which ensures its reliable entry of the product leading edges into the upsetting shaft and promotes an upsetting process that runs into the second transport gap.
  • Another expedient measure can be that the two outer rollers of the upset folding device are adjustable relative to the middle roller. This makes it possible to adjust the clear width of the transport gaps to the respective product thickness. The clear width of the compression shaft can also be appropriately adjusted.
  • Another expedient measure can consist in the fact that the upper and lower guide walls of the upsetting shaft are received on a traverse in the area of their ends remote from the roll and are spaced apart from one another and in the area of their ends near the roll a V-shaped widening towards the two outer rolls Limit the entry or exit wedge.
  • the guide walls can simply consist of tongues arranged next to one another with a lateral spacing, between which tabs forming the stop web engage.
  • the outer roll on the outlet side can be swiveled away from the middle roll while removing the transport gap on the outlet side, and the entrance of the compression shaft can be swiveled out of the transport plane of the belt guide serving the inlet-side transport gap.
  • outlet-side outer roller and the compression shaft are accommodated on bearing plates pivotable about the axis of the inlet-side outer roller.
  • the entire assembly can be adjusted in a simple manner by means of an actuator in the form of a cylinder-piston unit or a spindle, etc.
  • the inlet of the compression shaft can be closed when the transport gap on the outlet side is lifted by tongues which can be releasably received on the pivotable end shields and bridges the two outer rollers.
  • the folder 1 indicated by a dash-dotted outline is arranged in a manner known per se on the front face of a web-fed rotary printing press 2 also indicated by a dash-dotted outline.
  • a paper web 3 printed in the web-fed rotary printing press 2 is drawn over a former 4 attached to the frame of the web-fed rotary printing press 2 to form a longitudinal fold.
  • pull rollers 5 forming the folder inlet are provided.
  • the paper web 3 is divided into sheet-like products and here with two parallel ones len cross folds.
  • the folder 1 is provided with a transverse cutting device 6 and two successive transverse folding devices 8 and 9, which are arranged downstream of the transverse cutting device 6 and are connected to one another by a band guide 7.
  • the finished two times Cross-folded products are thrown into a paddle wheel 10 arranged below the second cross-folding device 9 and are deposited by the latter in the form of a shingled stream on a delivery belt 11.
  • the cross-cutting device 6 consists, in a manner known per se, of a cylinder 13 provided with a knock-off knife 12, against which another cylinder 15, which is associated with the knock-off knife 12, is attached.
  • the first cross fold is designed as a flap fold.
  • the first transverse folding device 8 arranged downstream of the transverse cutting device 6 is accordingly designed as a flap folding device.
  • the cylinder 15 carrying the grooved beams 14 is provided in a manner known per se with controlled folding blades 16 arranged between the grooved beams 14, which are arranged in a known manner with a folding jaw cylinder 17 placed on the cylinder 15 carrying the grooved beams 14 and folding blades 16 , controlled jaws 18 cooperate.
  • the structure and mode of operation of cross-cutting devices and flap folding devices are known per se and therefore do not require any further explanation in the present context.
  • This second transverse folding device 9 is designed as an upset folding device, which comprises a compression shaft 20 which practically forms a cul-de-sac for the products arriving via the belt guide 7, as well as three with the same circumference speed driven rollers 21, 22, 23, which are arranged and placed against each other so that on the circumference of the middle roller 22 offset by about 90 ° to each other, the input cross section of the upsetting shaft 20 opposite transport gaps 24 and 25, in the area of which one The products are carried along, and a window 26, which is assigned to the upsetting chute 20 and is opposite the middle roller 22 and is delimited by the two outer rollers 21 and 23, which are circumferentially spaced, results in the area in which the products are separated from the rollers 21 and 23 cannot be detected.
  • the rollers 21 to 23 are driven so that the transport gap facing the first transverse folding device 8, here the transport gap 24 delimited by the rollers 21 and 22, acts as a feed gap into which the transport plane of the belt guide 7 arrives.
  • the two outer rollers 21 and 23 are adjustable to adapt the clear width of the transport gaps 24 and 25 and thus to adapt the transport gaps 24 and 25 to different product thicknesses compared to the central roller 22, as indicated in FIG. 1 by double arrows.
  • the diameter of the rollers 21-, 22, 23 placed against one another in the area of the transport gaps 24 and 25 is dimensioned such that a larger one, the passage window 26, between the two outer salts 21 and 23, which are offset by 90 ° on the circumference of the middle roller forming distance results.
  • the compression shaft 20 connects to the middle roller 20 open. is.
  • the compression shaft 20, which is continuous over the entire width of the machine, is inclined upwards from the window 26 forming its entrance in relation to the transport plane of the belt guide 7 entering the transport gap 24.
  • this inclination is approximately 45 °, ie the upsetting shaft 20, with its central plane continuing the transport plane of the belt guide 7, is approximately perpendicular to the axes 21 and 23 containing the axes of the two outer rollers 21 and 23 offset from one another on the circumference of the central roller 22 Level arranged.
  • the upsetting shaft 20 can be arranged exactly in the middle between the two outer rollers 21 and 23. In the exemplary embodiment shown, the upsetting shaft 20 is slightly offset relative to such a central arrangement in relation to the outer roller 23 assigned to the downward-pointing transport gap 25, in order to ensure a good inlet and outlet of the products.
  • the upsetting shaft 20 results as the interior of a configuration which is approximately U-shaped in longitudinal section and is open towards the middle roller, which is formed by the U-legs, spaced apart, parallel guide walls 27 and 28, which extend over the entire machine width, and the distance between them Guide walls 27, 28 bridging, limiting the depth of the compression shaft 20, also extending over the entire machine width stop web 29 is formed.
  • the upper and lower guide walls 27 and 28 are spaced apart from one another by an interposed spacer bar 30 arranged in the region of their ends remote from the roller and received on a crossbar 31 fastened to the machine frame.
  • the spacer bar 30 is interchangeable, which means an adjustment of the clear width of the compression shaft 20 to the makes the respective product thickness possible.
  • the guide walls 27 and 28 are tapered and bent to form a V-shaped inlet and outlet gap opening towards the middle roller.
  • the position of this second transverse fold depends on the depth of the compression shaft 20.
  • the stop web 29 delimiting the depth of the compression shaft 20 is accordingly adjustable over the length of the compression shaft 20. Normally, the stop bar 29 is set so that the center of the once folded Product is located above the transport gap 25 acting as a pull-out gap when the front product edge in the transport direction runs up against the stop web 29.
  • the tongue-shaped end near the roller of the upper guide wall of the upsetting shaft 20 extends far into the gap 24, which is facilitated by the fact that the upsetting shaft 20 is opposite the center between the two rollers 21 and 23 is offset toward the outer roller 23 associated with the transport gap forming the pull-out gap. It is therefore not possible to deflect the products in a direction leading away from the gap 25.
  • the spacer bar 30 which specifies the clear width of the upsetting shaft 20 is dimensioned such that within the upsetting shaft 20 no evasion is possible perpendicular to the direction of transport.
  • the spacer bar 30 is accordingly interchangeable.
  • a further adjustment to the different conditions that result in products of different thickness is possible by pivoting or displacing the entire upsetting shaft 20.
  • the traverse 31 accommodating the compression shaft 20 can simply be arranged so as to be pivotable or adjustable.
  • the guide walls 27 and 28, which extend over the entire width of the machine, can be designed as plate-shaped elements.
  • the guide walls 27, 28, as can best be seen from FIG. 3, consist of tongues 34 which are arranged next to one another with a lateral spacing and which extend with their roller-side ends into the region of the two outer rollers 21 and 23.
  • the stop bar 29 has between the tongues 34 engaging tabs 35 which are attached to a bar 36 which is adjustably attached to one of the guide walls 27 and 28 respectively.
  • the tabs 35 engaging between the tongues 34 are simply formed in the exemplary embodiment shown as bent edge claws of the strip 36.
  • the tongues 34 of the lower guide wall 28 can be attached individually to the cross member 31, which in turn can be fixed on the machine frame of the folder 1.
  • the tongues 34 of the upper guide wall 27 can be combined to ensure a simple and quick interchangeability of the spacer bar 30 to form a continuous rake over the entire machine width.
  • the once cross-folded products are delayed in the area of the band guide 7 to such an extent that the gaps between successive products which result from the first transverse fold disappear except for a small remainder.
  • the rollers 21, 22, 23 of the upset folding device 9 can accordingly run at a speed which is lower than the peripheral speed of the cylinders of the flap folding device 8, so that the products entering the upset shaft 20 have a comparatively low speed, so that damage in the region of the stop web 29 does not increase fear.
  • the belt guide 7 has two successive sections 7a, 7b, which are interlocked with one another and are driven at speeds which are graded in the direction of transport, in such a way that the rear section 7a with the peripheral speed of the jaw cylinder 17 of the jaw folder 8 and the front section 7b the circumferential speed speed of the rollers 21, 22, 23 of the upset folding device 9 run.
  • the tapes of the tape guide sections 7a and 7b are laterally offset from one another, that is to say arranged on a gap, so that mutual interlocking is possible.
  • the mutually adjacent deflection members of the band guide sections 7a, 7b are arranged behind one another.
  • the belts of the front belt guide section 7b are guided around the rollers 21 and 22 of the compression folder device 9 facing the flap folding device 8 and delimiting the transport gap 24 acting as a feed gap, whereby the belt guide-side transport plane automatically runs into the transport gap 24 and at the same time drives the belts of the front belt guide section 7b he follows.
  • the middle roller 22 is, as can best be seen from FIG. 2, provided with the grooves 37 assigned to the strips, the depth of which corresponds approximately to the strip thickness, so that in the area of the transport gap 25 acting as an extension gap, in the area of which the fold formation takes place, results in a practically smooth surface.
  • the lower belts of the front belt guide section 7b which wrap around the middle roll 22 of the upset folding device 9, are guided in such a way that they run off the roll 22 in the region of the second transport gap 25, which acts as a pull-out gap.
  • a deflecting roller 38 arranged below the roller 22 is provided.
  • the outer roller 23 cooperating with the central roller 22 in the area of the transport nip 25 is likewise wrapped in belts 39, which are likewise guided over a deflection roller 38 arranged below the roller 23 and accordingly run off the roller 23 in the / area of the transport nip 25.
  • FIG. 1 A downward ejection section 40 can be seen, which throws the twice cross-folded products into the paddle wheel 10 arranged below it.
  • the rollers 21, 22, 23 of the upset folding device 9 are provided with drive wheels 21a, 22a, 23a which are arranged in the region of a machine side and are designed here as gearwheels and which engage with a toothed belt 41 which is toothed on both sides.
  • the toothed belt 41 is driven by means of a pinion 42 arranged on a driven shaft.
  • the upper and lower belts of the front belt guide section 7b are driven by the rollers 21 and 22 of the compression folding device which they wrap around. The same naturally also applies to the belts 39 that wrap around the roller 23. As shown in FIG.
  • the upper belts of the rear belt guide section 7a wrap around the region of the folding jaw cylinder 17 upstream of the lifting tongues 19 and thereby receive a drive at the desired speed. Only the lower belts of the rear belt guide section 7b accordingly require a separate drive.
  • a deflection roller 43 assigned to these belts is provided with a laterally attached drive wheel 43a which is in engagement with a toothed belt 44 which is arranged coaxially with the pinion 42 and which has a larger diameter than the desired speeds Pinion 45 is driven.
  • the twice cross-folded products are laid out. But it would also be think bar, this can be fed via a further band guide, which can be formed in one piece or in the above-described manner also in two parts, to a further transverse folding device, which is designed, for example, as a compression folding device.
  • the embodiment according to FIG. 4 offers the possibility of laying out cross-folded products only once.
  • the upset folding device 9 downstream of the first transverse folding device 8 can be passivated.
  • the upset fold device designed here as the second transverse fold device is penetrated by the lower set of belts 50 of the front band guide section 7b running on its middle roll 22.
  • the belt set 50 interacts on the inlet side with belts which are guided around the inlet-side outer roller 21 and on the outlet side with belts which are guided around the outlet-side outer roller 23.
  • the outlet-side outer roller 23 and the compression shaft 20 are accommodated here on common bearing plates 51 which can be pivoted about the axis of the inlet-side outer roller 21.
  • the outlet-side outer roller 23 is pivoted to the stationary middle roller 22 and interacts with it to form the outlet-side transport gap, which is offset by approximately 90 ° with respect to the inlet-side transport gap 24.
  • the end shields 51 are based on that of FIG.
  • the pivoting position of the pivotable assembly is selected so that the belt set 50 traveling underneath the compression shaft entrance 26 is not deflected in the area of the middle roller 22, ie that the transport plane of the belt guide 7b is deflected in the area of the middle roller 22 under the two outer rollers 21 and 23 stretched away.
  • the adjustable assembly can be adjusted by actuators acting on the end shields 51, for example in the form of a cylinder-piston unit 52 or a spindle drive, etc.
  • a guide device 53 bridging the distance between the two outer rollers 21 and 23 which are spaced apart from one another and which can be designed in the form of a rake consisting of adjacent tongues and which can be detachably fixed to the pivotable end shields 51.
  • a deflection roller 54 is provided which is arranged downstream of the outlet-side outer roller 23 and which, together with the adjacent outer roller 32 and the upsetting shaft 20, on the around the Axis 55 of the input-side outer roller 21 pivotable end shields 51 is received and engages in the band guide leaving the upsetting device, formed by the band set 50 running on the middle roller 22 and the band set guided around the outlet-side outer roller 23, forming a band kink 56 a stabilization of the funded products is achieved.
  • the deflection roller 54 in cooperation with a downstream stationary deflection roller 57 and the two outer rollers 21 and 23 of the upset folding device only one comparatively flat ribbon kink formed.
  • the distance of the deflecting roller 54 from the adjacent outer roller 23 is chosen so that the length of the belt guide section delimited by the deflecting roller 54 and the adjacent outer roller 23 corresponds at least to the depth of the compression shaft 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP86107675A 1985-06-12 1986-06-05 Plieuse Expired - Lifetime EP0205115B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3520963 1985-06-12
DE19853520963 DE3520963A1 (de) 1985-06-12 1985-06-12 Falzapparat

Publications (3)

Publication Number Publication Date
EP0205115A2 true EP0205115A2 (fr) 1986-12-17
EP0205115A3 EP0205115A3 (en) 1988-03-30
EP0205115B1 EP0205115B1 (fr) 1991-05-08

Family

ID=6273013

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86107675A Expired - Lifetime EP0205115B1 (fr) 1985-06-12 1986-06-05 Plieuse

Country Status (2)

Country Link
EP (1) EP0205115B1 (fr)
DE (2) DE3520963A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5042788A (en) * 1986-05-14 1991-08-27 Strachan Henshaw Machinery Ltd. Processing paper and other webs
CN113685958A (zh) * 2021-07-20 2021-11-23 管凤珍 一种便携式空气清洁除菌循环设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3618921A1 (de) * 1986-06-05 1987-12-10 Frankenthal Ag Albert Falzapparat
DE4120629A1 (de) * 1991-06-22 1992-12-24 Roland Man Druckmasch Einrichtung zum querschneiden von bahnen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2891791A (en) * 1955-12-19 1959-06-23 Miehle Goss Dexter Inc Jaw folding mechanism
GB1036778A (en) * 1964-01-28 1966-07-20 Ernest Arthur Timson Improvements in or relating to sheet folding apparatus
US3975009A (en) * 1974-12-23 1976-08-17 Brown Frank H Machine for folding flexible sheets

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE40520C (de) * FIRMA KOENIG & BAUER in Kloster-Oberzell b. Würzburg Neuerung an dem unter Nr. 37640 patentirten Falz- und Bogenleit-Apparat
US3008707A (en) * 1958-07-21 1961-11-14 Liberty Folder Company Method and means for production of signatures
DE6802168U (de) * 1968-10-14 1969-02-06 Griesser & Kunzmann Kg Maschine zum falzen von folienmaterialabschnitten, insbesondere papierblaettern
DE3030775C2 (de) * 1980-08-14 1993-04-15 Albert-Frankenthal Ag, 6710 Frankenthal Falzapparat
DD218750A3 (de) * 1982-07-08 1985-02-13 Polygraph Leipzig Falzapparat

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2891791A (en) * 1955-12-19 1959-06-23 Miehle Goss Dexter Inc Jaw folding mechanism
GB1036778A (en) * 1964-01-28 1966-07-20 Ernest Arthur Timson Improvements in or relating to sheet folding apparatus
US3975009A (en) * 1974-12-23 1976-08-17 Brown Frank H Machine for folding flexible sheets

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5042788A (en) * 1986-05-14 1991-08-27 Strachan Henshaw Machinery Ltd. Processing paper and other webs
CN113685958A (zh) * 2021-07-20 2021-11-23 管凤珍 一种便携式空气清洁除菌循环设备

Also Published As

Publication number Publication date
DE3520963A1 (de) 1986-12-18
EP0205115A3 (en) 1988-03-30
DE3679106D1 (de) 1991-06-13
DE3520963C2 (fr) 1988-11-03
EP0205115B1 (fr) 1991-05-08

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