EP1524220A2 - Vorrichtung zur Anwendung in Kartonmaschinen oder anderen Materialverarbeitungsmaschinen zur Verhinderung der Durchbiegung von Hauptwellen - Google Patents

Vorrichtung zur Anwendung in Kartonmaschinen oder anderen Materialverarbeitungsmaschinen zur Verhinderung der Durchbiegung von Hauptwellen Download PDF

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Publication number
EP1524220A2
EP1524220A2 EP04024378A EP04024378A EP1524220A2 EP 1524220 A2 EP1524220 A2 EP 1524220A2 EP 04024378 A EP04024378 A EP 04024378A EP 04024378 A EP04024378 A EP 04024378A EP 1524220 A2 EP1524220 A2 EP 1524220A2
Authority
EP
European Patent Office
Prior art keywords
counter
supporting
discs
shafts
slitting
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
EP04024378A
Other languages
English (en)
French (fr)
Other versions
EP1524220A3 (de
EP1524220B1 (de
Inventor
Rinaldo Benzoni
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.)
Engico SRL
Original Assignee
Engico SRL
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 Engico SRL filed Critical Engico SRL
Publication of EP1524220A2 publication Critical patent/EP1524220A2/de
Publication of EP1524220A3 publication Critical patent/EP1524220A3/de
Application granted granted Critical
Publication of EP1524220B1 publication Critical patent/EP1524220B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/137—Means for varying longitudinal profiles
    • B65H2404/1372—Means for varying longitudinal profiles anti-deflection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1762—Corrugated

Definitions

  • the present invention relates to a device designed for application to operating machines for processing paperboard or other materials, in sheet or strip form, which is adapted to prevent main operating shafts from bending, such as, respectively, counter-precreasing, counter-slitting and counter-creasing shafts.
  • the latter is more sensitive at the center of the paperboard strip and is caused by the weight of the operating shafts supporting related operating disc elements.
  • the corrugated paperboard material will have, at a center thereof, different depth precreased and creased portions, which will negatively affect following folding operations for forming, for example, boxes, and this particularly in automatic systems for packaging products into paperboard boxes.
  • the aim of the present invention is that to overcome the above mentioned drawbacks, by providing a device specifically designed for preventing main operating shafts from bending which is very simple construction wise and can be quickly applied to existing paperboard material processing machines.
  • figure 1 shows said operating machine 100 for processing a corrugated paperboard material 81, which machine comprises slitting knives 78, which are rotatively driven by motor driven shafts.
  • conveying belts 77 driven by a driving shaft 83 are provided.
  • the slitting knives 78 operate in cooperation with counter-slitting knives 79, thereby suitably slitting and trimming a corrugated paperboard material sheet 81.
  • Figure 1 shows furthermore a supporting shaft 11, supporting a plurality of counter-slitting disc elements 79 including a plurality of related grooves.
  • the above operating shafts tend to bend because of the stress applied thereto by the belts 77 operating in cooperation with the flat portion of the counter-slitting elements 79, in the presence of a corrugated paperboard sheet 81 which is entrained for processing it.
  • the operating machine shown in figure 1 comprises a geared motor unit 85, driving a shaft 86 which, through related gears 87 and toothed sectors 96, rotatively drives eccentric bushes 90 arranged at end portions thereof, provided for adjusting the thickness or spacing between the counter-slitting elements 79 supported by the shaft 11, and the top belts 77.
  • the operating machine comprises furthermore a further operating shaft, provided for causing the supporting elements 82 supporting the slitting discs 78 and related pulleys and belts 77 to axially slide in a horizontal direction.
  • Figure 1 shows moreover a supporting bar 3, to which a linear guide 23 is applied, thereon is slidably supported a shoe or sliding block 24 in turn supporting an oleodynamic cylinder 6, on the top of which a cradle 16 is applied.
  • the top shaft 83 rotatively drives the belts 77 and related pulleys, which are supported by the supporting elements or arms 82 through pivots 84, thereabout said slitting disc elements 78 are rotatively driven.
  • Figure 2 shows a side view of the shafts supporting the slitting discd 78, counter-slitting discs 79, eccentric bushes 90, toothed or gear sectors 96, gears 87, precreasing assembly 92, counter-precreasing assembly 94, creasing assembly 93 and counter-creasing assembly 95.
  • FIG. 2 schematically shows moreover an operating machine including pairs of opposite shafts 11, 11', 12, 12', 13, 13', 14 and 14', to which the device to be hereinafter disclosed can be applied.
  • Figures 1 and 2 show, in a schematic manner, an operating machine 100 for processing corrugated paperboard material, to which machine the subject device will be applied.
  • the slitting disc elements 78 operate in cooperation with counter-slitting discs 79, thereby properly cutting and trimming a corrugated paperboard sheet 81.
  • Figure 1 shows a supporting shaft 11 which supports the grooved counter-slitting knives.
  • the shafts 11, 11', 12, 12', 13, 13', 14 and 14' will tend to bend because of the pressure provided by the slitting discs 78 operating against the counter-slitting discs 79, in the presence of a corrugated paperboard sheet 81 being processed.
  • Figure 3 shows a supporting bar 1, designed for supporting the oleodynamic cylinders 6, on the top of which are applied the cradles 16.
  • shoes or sliding blocks 24 sliding on linear guides 23 applied to the supporting cross-members 2 and 3 are connected.
  • Figure 3 and the following figures show the device according to the invention, designed for application to machines for processing corrugated paperboard sheets 21 and for preventing the main shafts 11, 11', 12, 12', 13, 13', 14 and 14' from being bent, which device comprises a supporting bar 1, for the device supporting the shafts 11, 12, 13 and 14, which supporting bar is arranged in a longitudinal direction with respect to the corrugated paperboard material 81 feeding direction.
  • Said supporting bar 1 is in turn supported by two cross-elements shown in figure 3 and generally indicated in this figure by the reference numbers 2 and 3.
  • the side cross-members 2 and 3 are applied, in turn, at their end portions, to the main shoulders of the machine and are supported, at a central part thereof, by uprights 4 bearing on the ground.
  • the supporting bar 1 houses and supports, in turn, a plurality of hydraulic jacks 6, coupled to an oleodynamic pump 8 through coupling tubes 7 for supplying a hydraulic operating fluid.
  • the pump 8 is coupled, through the coupling tubes 7, to a solenoid valve assembly 10, the solenoid valves of which are controlled by a pressure switch 9, designed for adjusting the fluid pressure which will set the pushing force of the operating jacks 6.
  • the oleodynamic pump 8, pressure switch 9 and solenoid valves 10 supply, with a constant fluid pressure, the jacks 6 each of which will urge related supporting members of each main shaft 11, 12, 13 and 14.
  • each hydraulic jack 6 support a bottom lug element 15, preferably of curved configuration, rigid with a cradle 16 which can follow a vertical movement, thereby being suitably raised and lowered.
  • Each said cradle 16 is laterally guided by a pair of guiding elements 17 and side restraining plates 75.
  • the guiding elements 17, plates 75 and supporting bar 81 are bolted or coupled by any other suitable coupling means to one another, to provide a monolithic bearing construction, adapted to resist against high stresses as applied thereto by the main shafts 11, 12, 13 and 14, during the processing steps.
  • FIGS 3, 4 and 5 show the driving shafts 19 for driving the mentioned eccentric bushes, which are designed for adjusting the distance between the shafts supporting the mentioned counter-precreasing, counter-slitting, counter-creasing, precreasing, creasing discs as well as the top driving belts 77 arranged in an adjoining relationship with the slitting blades, depending on the thickness of the paperboard material to be processed.
  • Each cradle 16 supports, in turn, a bearing 20 which is held in a set position by side pairs of holding sectors 18.
  • Each bearing 20 supports a shaft 11, 12, 13 and 14, through the interposition of a bushing 22, providing an anti-seizing function, during the location operations.
  • the mentioned bushing 22 is held in a set position therefor by resilient ring elements 21.
  • cross members 2 and 3 are preferably provided with linear guides 23 and shoes or sliding blocks 24.
  • the linear guides 23 support the sliding blocks 24 which in turn support the supporting bar 1, to allow the overall system to be axially driven, in order not to limit the locating flexibility and operating flexibility of the operating machine.
  • the axial displacement of the subject device can be carried out by mechanical driving elements in turn driven by electric motors or oleodynamic pistons or manual adjustable systems.
  • main shafts 12 and 14 can alternatively support the precreasing and creasing disc elements, in particular the bottom disc elements, cooperating with top precreasing and counter-creasing disc elements.
  • the adjustment of the distance of the counter-precreasing, counter-creasing and counter-slitting bottom discs, with respect to the top precreasing, creasing and driving belts, which operate in cooperation with the counter-slitting discs, must be performed depending on the variation of the paperboard material thickness.
  • the oleodynamic pump 8 will reset, the solenoid valves 10 being opened, the pushing of the pistons of the jacks 6, by pressurizing the hydraulic circuit 7, to achieve a preset value on a pressure switch 9.
  • each piston of the hydraulic jacks 6 is controlled by a respective solenoid valve 10, which will be closed as the set and desired value is achieved.
  • Figure 4 shows, on an enlarged scale, the sliding block assembly 30 supporting the supporting bar 1.
  • Figure 5 shows an enlarged detail, illustrating the bearing surface 5 of the supporting bar 1, the supporting bar 1 for the device for supporting the shafts 11, 12, 13 and 14, the tubes 7 for supplying the hydraulic jacks 6, the shafts 19 for driving the eccentric bushings supporting at their end portions the main shafts 11, 12, 13 and 14, the several hydraulic jacks 6, the bearing surface 5 for bearing the supporting bar 1, the guide elements 17, a linear guide 23 bearing the ball recirculating shoe 24 supporting the bar 1 bearing surface 5 for the shaft supporting device (supporting the shafts 11, 12, 13 and 14).
  • Figure 6 shows, on an enlarged scale, a detail of the operating machine and, more specifically, the linear guide 23 bearing shoe 24, the supporting bar 1 for the shafts 11, 12, 13 and 14 supporting device and the supporting bar 1 bearing surface.
  • inventive device to be applied to corrugated paperboard material processing machines, or other materials in sheet or strip forms, is perfectly suitable to prevent the main shafts of said machines from being bent.

Landscapes

  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Making Paper Articles (AREA)
  • Coating Apparatus (AREA)
  • Agricultural Machines (AREA)
  • Crushing And Grinding (AREA)
  • Treatment Of Fiber Materials (AREA)
EP04024378A 2003-10-17 2004-10-13 Vorrichtung zur Anwendung in Kartonmaschinen oder anderen Materialverarbeitungsmaschinen zur Verhinderung der Durchbiegung von Hauptwellen Active EP1524220B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20032025 2003-10-17
IT002025A ITMI20032025A1 (it) 2003-10-17 2003-10-17 Dispositivo applicabile a macchine per la lavorazione del cartone o di altri materiali atto ad evitare la flessione degli alberi principali

Publications (3)

Publication Number Publication Date
EP1524220A2 true EP1524220A2 (de) 2005-04-20
EP1524220A3 EP1524220A3 (de) 2008-04-23
EP1524220B1 EP1524220B1 (de) 2009-12-16

Family

ID=34362426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04024378A Active EP1524220B1 (de) 2003-10-17 2004-10-13 Vorrichtung zur Anwendung in Kartonmaschinen oder anderen Materialverarbeitungsmaschinen zur Verhinderung der Durchbiegung von Hauptwellen

Country Status (5)

Country Link
EP (1) EP1524220B1 (de)
AT (1) ATE452095T1 (de)
DE (1) DE602004024627D1 (de)
ES (1) ES2338230T3 (de)
IT (1) ITMI20032025A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7408979A (nl) * 1973-10-12 1975-04-15 Voest Ag Inrichting voor het voortbewegen van bandvor- werkstukken in hun langsrichting.
DE3004273A1 (de) * 1980-02-06 1981-08-13 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Bogengreifervorrichtung
EP0575265A1 (de) * 1992-06-17 1993-12-22 Eastman Kodak Company Vorrichtung zur Unterstützung einer eine laufende Warenbahn berührenden Welle sowie eine solche Vorrichtung verwendende Schneidmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7408979A (nl) * 1973-10-12 1975-04-15 Voest Ag Inrichting voor het voortbewegen van bandvor- werkstukken in hun langsrichting.
DE3004273A1 (de) * 1980-02-06 1981-08-13 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Bogengreifervorrichtung
EP0575265A1 (de) * 1992-06-17 1993-12-22 Eastman Kodak Company Vorrichtung zur Unterstützung einer eine laufende Warenbahn berührenden Welle sowie eine solche Vorrichtung verwendende Schneidmaschine

Also Published As

Publication number Publication date
ATE452095T1 (de) 2010-01-15
ES2338230T3 (es) 2010-05-05
EP1524220A3 (de) 2008-04-23
EP1524220B1 (de) 2009-12-16
DE602004024627D1 (de) 2010-01-28
ITMI20032025A1 (it) 2005-04-18

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