EP0149737A1 - Installation pour l'empilage de carton ondulé - Google Patents

Installation pour l'empilage de carton ondulé Download PDF

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Publication number
EP0149737A1
EP0149737A1 EP84113044A EP84113044A EP0149737A1 EP 0149737 A1 EP0149737 A1 EP 0149737A1 EP 84113044 A EP84113044 A EP 84113044A EP 84113044 A EP84113044 A EP 84113044A EP 0149737 A1 EP0149737 A1 EP 0149737A1
Authority
EP
European Patent Office
Prior art keywords
format
braking device
speed
conveyor
formats
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
EP84113044A
Other languages
German (de)
English (en)
Other versions
EP0149737B1 (fr
Inventor
Manfred Schommler
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.)
Werner H K Peters Maschinenfabrik GmbH
Original Assignee
Werner H K Peters Maschinenfabrik GmbH
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 Werner H K Peters Maschinenfabrik GmbH filed Critical Werner H K Peters Maschinenfabrik GmbH
Priority to AT84113044T priority Critical patent/ATE26813T1/de
Publication of EP0149737A1 publication Critical patent/EP0149737A1/fr
Application granted granted Critical
Publication of EP0149737B1 publication Critical patent/EP0149737B1/fr
Expired legal-status Critical Current

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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
    • B65H33/00—Forming counted batches in delivery pile or stream of articles
    • B65H33/12—Forming counted batches in delivery pile or stream of articles by creating gaps in the stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/66—Advancing articles in overlapping streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/68—Reducing the speed of articles as they advance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H33/00—Forming counted batches in delivery pile or stream of articles
    • B65H33/02—Forming counted batches in delivery pile or stream of articles by moving a blade or like member into the pile
    • 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 invention relates to a stacking device in a corrugated cardboard system, with a transfer device arranged behind a cross cutter in the conveying direction, which consists of two or more conveyors arranged in series, which in turn can be driven by own drives, at least one format depositor arranged behind the last conveyor in the conveying direction , which contains a vertically adjustable stacking platform driven by a lifting device, a braking device assigned to the transfer device, by means of which the incoming formats are stopped, and a control device for the conveyor drives, the braking device and the lifting motor, which during normal operation reduce the speed of the transfer conveyor to a fraction of the Sets the feed speed in the cross cutter.
  • the longitudinally cut and grooved corrugated cardboard web is fed into a so-called cross cutter, which cuts the corrugated cardboard web into individual formats.
  • the cross cutter can be moved so that you can switch from one format length to the other - even during production.
  • the individual formats are usually stacked in a so-called format tray.
  • the stacking is usually carried out from above on a height-adjustable platform.
  • the formats coming from the cross cutter must therefore be raised to the stacking level.
  • a mostly relatively long transfer conveyor is arranged between the cross cutter and the format stacker. With the help of a braking device assigned to the transfer conveyor line, the formats emerging from the cross cutter at the line speed are stopped. They fall on a conveyor belt of the transfer conveyor. Since their speed is considerably lower than the line speed, for example only a tenth of the line speed, the formats are scaled on the transfer conveyor and transported in a scaled form to the format stacker.
  • the continuous operation described must be interrupted when the stack in the format depositor has reached its desired height or when the desired number of formats has been stacked.
  • the transfer conveyor is known to interrupt the flow of formats to the format depositor device to assign a braking device that interrupts the feed of the incoming scaled formats as long as it is activated.
  • a braking device that interrupts the feed of the incoming scaled formats as long as it is activated.
  • the cross cutter delivers formats at unchanged speed.
  • the braking device is deactivated too early, the first formats that leave the braking device may arrive at the format depositor too early.
  • the stacking platform is then not yet at the starting point, ie free from the previous stack and raised so far that a new stacking process can begin. Even if this danger is avoided, jams are formed which can significantly impair the correct stacking.
  • the invention is therefore based on the object of providing a stacking device in a corrugated cardboard system which, despite temporary interruptions in the format depositor when changing the stack, ensures problem-free stacking operation.
  • the brake device is actuated only briefly, immediately after actuation of the brake device, the conveyor drives drive the transfer conveyor behind the brake device at a considerably greater speed than the transfer conveyor in front of the braking device, and after the braking device is deactivated, the first-mentioned conveyors are driven at a lower speed, the size of which is proportional to the format length.
  • the braking device is actuated only briefly in order to create a minimum gap between the remaining formats and the expiring formats.
  • the formats in progress are transported away at a higher speed so that they quickly reach the format depositor.
  • the downstream transfer conveyors are driven at a lower speed, which is proportional to the length of the formats.
  • An adaptation of the reduced speed of the transfer conveyor to the format length is necessary because the braking of the scaled conveyed formats usually takes place by lifting at a point on the transfer conveyor line. The longer a format is, the more it sticks beyond the actual braking point, which means that its front end reaches the format offset rather than a shorter format.
  • the speed of the conveyor downstream of the braking device is selected after the braking device has been deactivated so that the front edge of the front format has reached the format depositor within the preparation time. If the format depositor is ready to form a new stack, the formats can then be stored immediately. Dead time is avoided.
  • the braking time can be kept extremely short, for example less than 2 seconds. With correspondingly long formats, it may be necessary to set the speed of the conveyor downstream of the braking device even lower than that of the conveyor in front of the braking device.
  • a computer which also counts the formats passing through the braking device.
  • the speed of the individual conveyors can be regulated with the help of the computer, in which the format length is entered, for example.
  • the computer can also be used to specify the time that must at least elapse so that the formats are cleared by the first conveyor downstream of the braking device.
  • the calculator can also be set to the number of formats desired for a batch.
  • the computer therefore contains a counter which emits a signal for the activation of the braking device when there is a sufficient number of formats on the conveyor line or in the stack behind the braking device.
  • a further embodiment of the invention provides that the lifting distance of the stacking platform is assigned several initiators which are offset in height and can be activated separately and are connected to the computer in such a way that the brake device tion is actuated when the stacking platform triggers an activated initiator. The brake device is triggered even though the normally set number of pieces has not yet been reached.
  • Such a control presupposes that the level of the stacking platform or of the topmost format remains essentially constant.
  • Such stacking is known per se.
  • Previously known format depositors use a scissor-type frame and a hydraulic or pneumatic cylinder to adjust the stacking platform, the platform being shut down by means of a controlled brake.
  • the lifting motor is a direct current motor or a regulated three-phase motor which drives the stacking platform via a gear. With the help of such a drive, the stacking platform can be controlled very finely in speed in order to facilitate the desired stacking. In the event of a stack change, however, the platform can also be driven at high speed. It is understood that a hydraulic motor can also be used.
  • a total number of format pieces can also be set in the computer and a signal for actuating the braking device is generated when the total number of format pieces is reached.
  • the brake device is actuated to make a smooth format change and to remove the last incomplete stack calculator, the total number of pieces can also be divided into even stacks.
  • FIG. 1 shows two tracks 10 and 11 of a transfer conveyor device between a cross cutter, not shown, and a stacking station with a first format stacker 12, which is assigned to the conveyor track 11.
  • the other format depositor assigned to the conveyor track 10 is not shown.
  • each conveyor track 10 11 namely a transfer conveyor 13, 13 ', 14, 14', 15, 15 'and 16, 16 '.
  • Brake conveyors 17, 18 and 17 ', 18' are assigned to the transfer conveyors 13 and 13 ', respectively.
  • One each is used to stop formats coming from the cross cutter and drop them in scales onto the underlying conveyor belt, which is driven at a lower speed than the line speed.
  • the transfer conveyors 13 to 16 are driven by separate drive motors FM1, FM2, FM3 and FM4.
  • the conveyors 13 'to 16' have corresponding drives, not shown.
  • the format stacker 12 has a height-adjustable stacking platform 19.
  • a photocell arrangement 20 is provided, with the aid of which the upper level (shown in dash-dotted lines) of the platform or the format lying on top is set. When placing the platform 19 is therefore more or less continuously lowered until the desired stack height is reached.
  • FIG. 2 only the conveyors 13 to 16 of the lower track are considered.
  • a corrugated cardboard web 20 is fed to a cross cutter 21 and separated into formats here.
  • the length of the formats is variable.
  • the formats arrive at the first transfer conveyor 13 from the cross cutter 21, having previously been transferred from the brake carriage 17 and 18 (in
  • Fig. 2 not shown) are stopped. Since the conveying speed v1 of the conveyor 13 is only one tenth of the line speed, the formats are shingled one above the other, as indicated at 22.
  • An adjusting cylinder 23 is arranged between the transfer conveyors 13 and 14, which cooperates with a brake tappet 24, which can optionally be moved in a plane below the conveying plane or above the conveying plane, as indicated in dashed lines.
  • the conveyor drives FM1 to FM4 are controlled by a computer 25.
  • the adjusting cylinder 23 is also controlled by the computer 25.
  • the photocell arrangement 20 is connected to the computer 25, as are five initiators 28 along the travel path of the platform 19 or sensors on the cross cutter 21 for the system speed, the format number and format length.
  • the format thickness, a number of stacks and a total number of pieces are also entered into the computer 25.
  • total number of pieces means the number of pieces of a given format, i.e. given length.
  • the formats coming from the cross cutter 21 are deposited in scaled form on the transfer conveyor 13 and with the speed v1 transported.
  • the speed v1 is one tenth of the system speed, and consequently also the speed in the cross cutter 21.
  • the speeds v2 to v4 of the other conveyors 14 to 16 are also equal to v1.
  • the scaled formats are stacked in the format stacker 12 on the stacking platform. In the starting position, the platform 19 is at the level 29 shown in broken lines. As the stacking progresses, the platform 19 is continuously lowered by the direct current motor 16. The photocell arrangement ensures that the level 29 is approximately maintained. If the sensor 27 determines that formats are no longer being transferred, the DC motor 26 moves to the delivery position and the stack on the platform 19 can be removed.
  • a trigger causes the computer 25 to move the platform 19 back up to the starting position for the new stack formation.
  • the adjustment to the delivery position does not only take place on the basis of the signal from the sensor 27, but a corresponding presetting in the computer 25 is required.
  • both the format thickness and the number of batches to be calculated are entered into the computer.
  • the computer 25 can determine how many formats have been placed on the conveyors. With the help of the computer 25, it is also possible to determine the number of the conveyed formats not in the exit of the cross cutter 21 but in the area of the ram 24. Does the calculator 25 determines that the desired number of pieces has passed the plunger 24, the adjusting cylinder 23 is activated by the computer 25. Its plunger 24 slightly lifts the scaled formats and prevents them from being transported further via the plunger.
  • the drives FM2 to FM4 are controlled to a higher speed so that the remaining formats reach the format stacker 12 as quickly as possible. Since the speeds v2 to v4 are known to the computer 25, it can also be determined when the last format has left the conveyor 14. After this time, the speed of the FM2 drive is reduced again. The same happens with the FM3 and FM4 drives. As soon as they have submitted the last format, they will be driven at a reduced speed. The speeds v2 to v4 of the conveyor drives FM2 to FM4 are the same. The size of the speed, however, depends on the length of the formats that follow when the plunger 24 releases the feed again. This release takes place at the time when the conveyor 14 immediately following the braking device is emptied and driven at a lower speed.
  • the overhang of the front format which has been stopped by the tappet 24, depends on the format length.
  • the longer format reaches the end of the conveyor section earlier than a shorter one at the same speed. Therefore, the computer 25 uses the format length to calculate the speed of the drives FM2 to FM4 in such a way that they become inactive of the plunger 24, the front edge of the first format is just in front of the storage in the format depository 12 when the platform 19 has reached its starting position.
  • the availability time of the platform 19 is another variable which the computer has to take into account. However, it is already known. However, it can be arbitrarily adjusted using the computer if circumstances arise that accelerate or delay the batch change.
  • the plunger 24 of the braking device is only engaged for a very short time, a maximum of 2 seconds, so that only a relatively slight jam forms in front of the braking device, which is harmless for the correct placement.
  • the travel path of the platform 19 can be divided according to how many formats have been stored when the platform 19 is at a predetermined location.
  • the brake device 24 is actuated when a desired number has passed it in order to accommodate a predetermined number of formats in the stack.
  • the initiators 28 are therefore provided, which are set to different format lengths and format thicknesses.
  • the platform 19 has an activated initiator 28 at a time when the on the platform 19 number of pieces together with the number of pieces located on the conveyor path after point 24 the total number of pieces of the stack has not yet been reached, the adjusting cylinder 23 is nevertheless actuated. A smaller number than the target number of pieces is therefore stacked. This prevents stack heights that are too large from being driven.
EP84113044A 1984-01-07 1984-10-30 Installation pour l'empilage de carton ondulé Expired EP0149737B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84113044T ATE26813T1 (de) 1984-01-07 1984-10-30 Abstapelvorrichtung in einer wellpappenanlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3400343A DE3400343C2 (de) 1984-01-07 1984-01-07 Fördervorrichtung zu einem Formatableger für Wellpappenabschnitte hinter einem Querschneider
DE3400343 1984-01-07

Publications (2)

Publication Number Publication Date
EP0149737A1 true EP0149737A1 (fr) 1985-07-31
EP0149737B1 EP0149737B1 (fr) 1987-04-29

Family

ID=6224449

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84113044A Expired EP0149737B1 (fr) 1984-01-07 1984-10-30 Installation pour l'empilage de carton ondulé

Country Status (3)

Country Link
EP (1) EP0149737B1 (fr)
AT (1) ATE26813T1 (fr)
DE (2) DE3400343C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998041465A1 (fr) * 1997-03-19 1998-09-24 Jagenberg Papiertechnik Gmbh Dispositif d'empilage de feuilles, en particulier de feuilles de papier ou de carton transportees sur des palettes par un systeme a lamelles

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4667953A (en) * 1985-08-28 1987-05-26 Mitsubishi Jukogyo Kabushiki Kaisha Sheet stacker
US5026249A (en) * 1989-05-26 1991-06-25 Thermoguard Equipment, Inc. Apparatus for stacking corrugated sheet material
DE102016119577A1 (de) * 2016-10-13 2018-04-19 Gämmerler Gmbh Verfahren und Vorrichtung zum Bilden von Produktstapeln

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282432B (de) * 1967-05-26 1968-11-07 Windmoeller & Hoelscher Paketbildeeinrichtung fuer Sackherstellungsmaschinen, vorzugsweise Schlauchziehmaschinen
US4040618A (en) * 1976-04-19 1977-08-09 Revco, Inc. Sheet stacking apparatus
GB2012247A (en) * 1978-01-16 1979-07-25 Koppers Co Inc Apparatus for stacking paperboard blanks
EP0006771A1 (fr) * 1978-06-23 1980-01-09 S.A. Martin Procédé et dispositif d'empilage de plaques
US4200276A (en) * 1978-05-15 1980-04-29 Marquip, Inc. Shingling and stacking of conveyed sheet material
DE3114102A1 (de) * 1980-04-09 1982-02-25 DRG (UK) Ltd., Bristol Verfahren und vorrichtung zum zufuehren von boegen au papier, pappe o.dgl.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2852603C3 (de) * 1978-12-05 1981-07-23 BHS-Bayerische Berg-, Hütten- und Salzwerke AG, 8000 München Vorrichtung zum Erzeugen einer vorbestimmten Lücke in einem sich schuppenartig überlappenden Bogenstrom

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282432B (de) * 1967-05-26 1968-11-07 Windmoeller & Hoelscher Paketbildeeinrichtung fuer Sackherstellungsmaschinen, vorzugsweise Schlauchziehmaschinen
US4040618A (en) * 1976-04-19 1977-08-09 Revco, Inc. Sheet stacking apparatus
GB2012247A (en) * 1978-01-16 1979-07-25 Koppers Co Inc Apparatus for stacking paperboard blanks
US4200276A (en) * 1978-05-15 1980-04-29 Marquip, Inc. Shingling and stacking of conveyed sheet material
US4200276B1 (en) * 1978-05-15 1993-09-14 Marquip, Inc. Shingling and stacking of conveyed sheet material
EP0006771A1 (fr) * 1978-06-23 1980-01-09 S.A. Martin Procédé et dispositif d'empilage de plaques
DE3114102A1 (de) * 1980-04-09 1982-02-25 DRG (UK) Ltd., Bristol Verfahren und vorrichtung zum zufuehren von boegen au papier, pappe o.dgl.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998041465A1 (fr) * 1997-03-19 1998-09-24 Jagenberg Papiertechnik Gmbh Dispositif d'empilage de feuilles, en particulier de feuilles de papier ou de carton transportees sur des palettes par un systeme a lamelles
US6318954B1 (en) 1997-03-19 2001-11-20 Jagenberg Papiertechnik Gmbh Device for stacking sheets, in particular sheet-fed paper or cardboard sheets delivered onto pallets

Also Published As

Publication number Publication date
DE3400343A1 (de) 1985-08-08
ATE26813T1 (de) 1987-05-15
DE3400343C2 (de) 1986-11-27
DE3463358D1 (en) 1987-06-04
EP0149737B1 (fr) 1987-04-29

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