EP0778125A2 - Appareil pour renforcer des flans de papier - Google Patents

Appareil pour renforcer des flans de papier Download PDF

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Publication number
EP0778125A2
EP0778125A2 EP96116926A EP96116926A EP0778125A2 EP 0778125 A2 EP0778125 A2 EP 0778125A2 EP 96116926 A EP96116926 A EP 96116926A EP 96116926 A EP96116926 A EP 96116926A EP 0778125 A2 EP0778125 A2 EP 0778125A2
Authority
EP
European Patent Office
Prior art keywords
workpieces
rollers
belts
profiling
conveyor
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.)
Withdrawn
Application number
EP96116926A
Other languages
German (de)
English (en)
Other versions
EP0778125A3 (fr
Inventor
Ulrich Eckelt
Horst Rautenberg
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP0778125A2 publication Critical patent/EP0778125A2/fr
Publication of EP0778125A3 publication Critical patent/EP0778125A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/008—Stiffening or reinforcing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
    • B31F1/0006—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof
    • B31F1/0009—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs
    • B31F1/0019—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs the plates, sheets or webs moving continuously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs

Definitions

  • the invention relates to a device for stiffening flat workpieces made of paper or the like, preferably of tube sections in sack production.
  • sections separated from a paper web have to be stacked or conveyed for the purpose of their collection or further processing, whereby the flexibility or limpness of the sections can result in problems with the exact positioning or further conveying.
  • the profiling disks which are generally arranged on both sides of the longitudinal center line of the workpieces, result in them uncontrollably pulling in material of the hose sections from the side, whereby it is not ensured from which side the pulling in takes place, so that again, for example, a scaled stacking of the workpieces takes place on the subsequent scale conveyor belt whose side edges are not exactly aligned.
  • the object of the invention is therefore to provide a device of the type specified at the outset which ensures that workpieces which have been provided with a straight edge are provided with profiled means for the purpose of stiffening them with a wavy profile.
  • this object is achieved by a device for stiffening flat workpieces made of paper or the like, preferably of hose sections during sack production, which from the workpieces have wavy profiling devices, for example freely rotatably mounted disks or belts revolving around freely rotatably mounted rollers each of the sections engaging on the workpiece assert their common center plane in such a way that they profile the workpieces in an undulating manner, and consists of a conveyor arranged in the region of the profiling devices, which clamps the workpieces between them.
  • the conveyor provided with its own drive fixes the workpieces as they pass through the profiling devices, so that lateral distortion of the workpieces is excluded.
  • the device according to the invention therefore Provide workpieces with a stiffening profile without lateral distortion, so that the wavy profiled workpieces can be thrown straight for stacking purposes or onto a downstream scale belt conveyor, so that problems in further processing due to the workpiece not being aligned with one another excluded are.
  • the clamped conveyor is expediently a double belt conveyor.
  • the clamping strands of the double belt conveyor can run over paired, supporting intermediate rollers, one of which is pressed against the other by spring force.
  • the double belt conveyor expediently detects the workpieces in the region of their center lines.
  • the profiling devices are expediently arranged in mirror image to the longitudinal center plane of the workpieces.
  • the belts revolving around freely rotatably mounted rollers are expediently mounted in frames which are mounted in the machine frame so as to be adjustable relative to one another.
  • the frames can be pivotally mounted in the machine frame at their inlet-side ends, the opposite ends being provided with adjusting devices for lifting and lowering in order to be able to change the depth of the wavy profiles in the desired manner.
  • the actuators can consist of eccentrics.
  • rollers are mounted in a frame with the same axis, over which two endless belts run parallel to one another, rollers in the other supporting only one endless belt, and the belt being arranged in the central plane between the belts rotating parallel to one another.
  • the outlet-side, paired deflection rollers can have a larger diameter than the inlet-side, which meets the requirement that the wave-shaped profiles starting from the inlet-side end of the frame are made increasingly deeper.
  • curved profiling plates are arranged on one of the frames, into which the side plates of the workpieces run. These profiling sheets additionally form a stiffening profile on the side areas of the workpieces.
  • the profiling devices can also be adjustable in height relative to the clamping strands of the double belt conveyor, so that an approximately roof-shaped profile can also be formed in the central area of the workpieces.
  • a double belt conveyor 1 the sets of endless belts forming the upper and lower strands of endless belts running over the front deflection rollers 2, 3, convey the tube sections to be deposited in shingled fashion one above the other one after the other and transfer them to the profiling device 5.
  • the front deflection rollers 2, 3 of the double belt conveyor 1 provided with a drive are mounted in the side parts 6, 7 of a machine frame (not shown) in a form not shown.
  • Two belts 8, 9 of the band of coulters running over the lower deflection roller 3 of the double belt conveyor 1 run over the rollers 9, 10, which are freely rotatably mounted in the lower frame 11, 12, and which at their inlet-side ends are attached to pins 6, 7 attached to the side parts are pivotally mounted.
  • the rollers 9, 10 are driven by the belts 8, 9.
  • rollers 9, 10 are provided on their mutually facing inner sides with annular grooves over which endless round belts 14, 15 run, which are guided for their deflection via front deflection rollers 16, 17 which are freely rotatably mounted on the front end region of the frame 12.
  • a roller 20 is freely rotatably mounted in the machine frame, the coaxial two lateral Pulleys 21, 22 carries. Over these pulleys run to drive the roller 20 belts or belts 22, 23, the belts of the band of bands running over the lower deflection roller 3 of the double belt conveyor 1.
  • the roller 20 is provided with a central pulley 25, over which an endless belt 26 runs, which is deflected by a front deflection roller 27, which is freely rotatably mounted in the machine frame.
  • the upper run of the belt 26 forms a run of the double belt conveyor 29, which clamps the workpieces through the profiling device 5.
  • the upper run of the endless belt 6 is supported between the pulleys or rollers 25, 27 by intermediate rollers 30, which are freely rotatably mounted on angled supports 31 of the machine frame.
  • the belts or belts 22, 23 which drive the roller 20 with the three pulleys partially wrap around tensioning rollers 35, 36 which are mounted in the machine frame in a conventional manner and not shown.
  • Two belts 37, 38 which are belts of the band of belts running over the upper deflection roller 2 of the double belt conveyor 1, drive the rollers 39, 40, which are freely rotatable in the machine frame.
  • the belts 37, 38 are provided with conventional tensioning rollers 41, 42 mounted in the machine frame.
  • the rollers 39, 40 are provided with lateral annular grooves over which belts 44 and 45 run in pairs.
  • the belts 44, 45 are guided over front deflection rollers 46, 47, which have a larger diameter than the rollers 39, 40.
  • the deflection rollers 46, 47 are freely rotatably mounted in an upper frame 48.
  • the upper and lower frames 12, 48 are pivotally mounted about axes 49, 50 in the side parts 6, 7 of the frame, which are aligned with the axes of the rollers 20 and 40.
  • a roller 52 is also freely rotatably mounted, which is the inlet-side roller of the upper belt of the clamping double belt conveyor 29 is.
  • the upper belt 53 of the clamping double belt conveyor 29 continues to run over the front deflection roller 54, which is freely rotatable in the machine frame, and over the support rollers 55.
  • the support rollers 55 are freely rotatable on two-armed levers 56, which are pivoted about axes 57 in the machine frame and are acted upon at their other ends by tension springs 58 in such a way that they bear against the supporting counter-rollers 30 under tension in the manner shown.
  • the upper belt 53 of the clamping double belt conveyor 29 is a belt of the band coulter of the double belt conveyor 1 rotating over the upper deflection roller 2.
  • the front ends of the frames 12, 48 are mounted height-adjustable in the machine frame by eccentric shafts 60, 61 and 62, 63. Cranks or servomotors can be provided for rotating the eccentric shafts.
  • Cranks or servomotors can be provided for rotating the eccentric shafts.
  • the upper frames are provided in the form of a fork with slot-shaped recesses 70 into which web parts 71 of the lower frames 12, 12 'engage.
  • the frames 12, 12 'and 48, 48' are slidably guided on the frame-fixed pins 62, 63 and 60, 61 in the transverse direction relative to each other.
  • a threaded spindle 74 is rotatably mounted in the side parts 6, 7, on whose opposite threads spindle nuts 75, 76 are screwed.
  • These spindle nuts 75, 76 are displaceably but non-rotatably guided in the frame and they have forked drivers 77, 78, in which web parts 79, 80 of frame parts 12, 12 'engage.
  • the profiling belts can also be moved out of the conveying plane of the clamping double belt conveyor 29 in the manner shown in FIG. 2, so that the tube section to be profiled, in addition to the lateral wavy profiles, also has a medium approximately trapezoidal profile Profile can be granted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
EP96116926A 1995-12-05 1996-10-22 Appareil pour renforcer des flans de papier Withdrawn EP0778125A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19545349 1995-12-05
DE19545349A DE19545349A1 (de) 1995-12-05 1995-12-05 Vorrichtung zum Aussteifen von flachen Werkstücken aus Papier o. dgl.

Publications (2)

Publication Number Publication Date
EP0778125A2 true EP0778125A2 (fr) 1997-06-11
EP0778125A3 EP0778125A3 (fr) 1998-04-08

Family

ID=7779243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96116926A Withdrawn EP0778125A3 (fr) 1995-12-05 1996-10-22 Appareil pour renforcer des flans de papier

Country Status (8)

Country Link
US (1) US5871434A (fr)
EP (1) EP0778125A3 (fr)
JP (1) JPH09165132A (fr)
KR (1) KR970033791A (fr)
BR (1) BR9605851A (fr)
CZ (1) CZ331096A3 (fr)
DE (1) DE19545349A1 (fr)
TW (1) TW377318B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6581928B1 (en) * 1999-10-20 2003-06-24 Heidelberger Druckmaschinen Ag Sheet guide device for sheet-processing machine
DE10046812A1 (de) * 2000-09-21 2002-04-18 Heidelberger Druckmasch Ag Einrichtung zum Verstellen von Fördereinrichtungen für flächige Exemplare in Rotationsdruckmaschinen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1779533A1 (de) * 1968-08-23 1971-09-30 Windmoeller & Hoelscher Vorrichtung zum Ablegen von Werkstuecken aus thermoplastischen Kunststoffolien
GB1400597A (en) * 1971-10-12 1975-07-16 Tokyo Automaitc Machinery Work Apparatus for making bags from flexible web material
GB1424182A (en) * 1973-09-13 1976-02-11 Packotom Bv Apparatus for stacking loose paper sheets
EP0004749A2 (fr) * 1978-03-30 1979-10-17 Union Carbide Corporation Appareil pour plier des sacs

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3073217A (en) * 1960-10-18 1963-01-15 Owens Illinois Glass Co Method and apparatus for making printed flattened tubular carton blanks
DE1511033B1 (de) * 1963-03-21 1969-09-25 Windmoeller & Hoelscher Rillvorrichtung zum Vorrillen von Falzlinien in Sackmaschinen
US3988019A (en) * 1974-05-08 1976-10-26 Windmoller & Holscher Apparatus for depositing flat articles fed between belts
DE3215006A1 (de) * 1982-04-22 1983-10-27 Bates Ventilsaekke Co. A/S, 9400 Norresundby Vorrichtung zum z-foermigen falten von papiersaecken
US5104117A (en) * 1988-01-15 1992-04-14 Emf Corporation Paper sheet sorting apparatus
JP2808446B2 (ja) * 1988-09-28 1998-10-08 株式会社リコー 用紙搬送装置
US5091754A (en) * 1989-04-26 1992-02-25 Canon Kabushiki Kaisha Image forming apparatus comprising lateral movement means
US5112291A (en) * 1990-01-08 1992-05-12 Vermehren H Richard Overbending device
JP2623159B2 (ja) * 1990-08-24 1997-06-25 富士写真フイルム株式会社 シート材搬送装置
DE4110931A1 (de) * 1991-04-04 1992-10-08 Gao Ges Automation Org Riementransportsystem
WO1993009047A1 (fr) * 1991-11-08 1993-05-13 Kabushiki Kaisha Ace Denken Systeme d'acheminement de feuilles de papier
US5555083A (en) * 1994-10-03 1996-09-10 Xerox Corporation Decurler apparatus for reducing cross curl in sheets

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1779533A1 (de) * 1968-08-23 1971-09-30 Windmoeller & Hoelscher Vorrichtung zum Ablegen von Werkstuecken aus thermoplastischen Kunststoffolien
GB1400597A (en) * 1971-10-12 1975-07-16 Tokyo Automaitc Machinery Work Apparatus for making bags from flexible web material
GB1424182A (en) * 1973-09-13 1976-02-11 Packotom Bv Apparatus for stacking loose paper sheets
EP0004749A2 (fr) * 1978-03-30 1979-10-17 Union Carbide Corporation Appareil pour plier des sacs

Also Published As

Publication number Publication date
TW377318B (en) 1999-12-21
BR9605851A (pt) 1998-08-25
DE19545349A1 (de) 1997-06-12
KR970033791A (ko) 1997-07-22
EP0778125A3 (fr) 1998-04-08
CZ331096A3 (en) 1997-06-11
JPH09165132A (ja) 1997-06-24
US5871434A (en) 1999-02-16

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