EP1541512A1 - Stapelmaschine für gefaltete pappschachteln oder bögen - Google Patents

Stapelmaschine für gefaltete pappschachteln oder bögen Download PDF

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Publication number
EP1541512A1
EP1541512A1 EP03792433A EP03792433A EP1541512A1 EP 1541512 A1 EP1541512 A1 EP 1541512A1 EP 03792433 A EP03792433 A EP 03792433A EP 03792433 A EP03792433 A EP 03792433A EP 1541512 A1 EP1541512 A1 EP 1541512A1
Authority
EP
European Patent Office
Prior art keywords
stacking
boxes
package
area
stacking area
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Withdrawn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
EP03792433A
Other languages
English (en)
French (fr)
Inventor
Luis Gonzaga Ozcariz Eizaguirre
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.)
Technologia del Carton SA
Original Assignee
Technologia del Carton SA
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 Technologia del Carton SA filed Critical Technologia del Carton SA
Publication of EP1541512A1 publication Critical patent/EP1541512A1/de
Withdrawn legal-status Critical Current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
    • B65H31/00—Pile receivers
    • B65H31/30—Arrangements for removing completed piles
    • B65H31/3027—Arrangements for removing completed piles by the nip between moving belts or rollers
    • 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
    • B65H29/58—Article switches or diverters
    • B65H29/60—Article switches or diverters diverting the stream into alternative paths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/30—Arrangements for removing completed piles
    • B65H31/3081—Arrangements for removing completed piles by acting on edge of the pile for moving it along a surface, e.g. by pushing
    • 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
    • B65H33/14—Forming counted batches in delivery pile or stream of articles by diverting batches to separate receivers
    • 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
    • B65H33/16—Forming counted batches in delivery pile or stream of articles by depositing articles in batches on moving supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/422—Handling piles, sets or stacks of articles
    • B65H2301/4226—Delivering, advancing piles
    • B65H2301/42262—Delivering, advancing piles by acting on surface of outermost articles of the pile, e.g. in nip between pair of belts or rollers
    • 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
    • B65H2701/1764—Cut-out, single-layer, e.g. flat blanks for boxes
    • 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
    • B65H2701/1766—Cut-out, multi-layer, e.g. folded blanks or boxes

Definitions

  • the present invention relates to a stacking machine of folded cardboard boxes or sheets the clear purpose of which is to form stacks or packages of both cardboard sheets intended for the conformation of boxes, and of sheets previously transformed and turned into folded boxes.
  • the machine is foreseen for mounting in a line or following a line for transformation of the cardboard sheets, to form stacks of folded boxes obtained in the transformation line, wherein each stack or package is obtained by means of two halves which are obtained in different areas of the actual machine, starting from the entrance thereto, so that the two halves or semi-packages are superimposed and form the package or stack which is subsequently conveyed to the exterior of the machine.
  • the lines in which transformation of the cardboard sheets is carried out comprise different modules which carry out well differentiated functions, and which are:
  • the stackers can carry out the stacking in the lower part, that is to say, the box enters the stack on the underside, it being equally possible to carry out the stacking on the topside, in which case the box enters the stack by the top part.
  • a stacking station is described with separation and evacuation of batches of sheet elements stacking being at the output of a machine for transformation of such elements, wherein the station stacks the folded and flattened cardboard boxes in the lower area thereof, comprising some means of admission of the sheet elements, these falling onto a stack which is formed on a table lift which descends as the stack builds up, the top part of the table being formed by rollers or endless belts, also comprising some spacing arms joined to a mobile horizontal tie which is displaced parallel and perpendicularly to the plane of the table, the spacers being positioned to receive the sheet elements. It also comprises an output conveyor, to the level of which the table descends for removal of the lot or package of sheet elements.
  • the machine which is disclosed has as one of its fundamental characteristics, that the stacking of the folded boxes is performed in two halves which are obtained in different areas, a first lower area and a second upper area, both halves being combined by superimposing to form the desired package or stack.
  • the machine of the invention comprises a tilting table foreseen at the entrance for receiving the folded boxes individually, that table being connected to an arm actuated by servo-motor to carry out the subsequent tilting of the former, so that if said tilting is downward, the folded boxes have access to a first stacking area forming the first half of the package or stack, whilst if the tilting of that tilting table is upward, then the folded boxes are led by means of an upper conveyor belt toward the second stacking area.
  • the second stacking area will receive the folded boxes, forming the second half of the package, which will be joined with the first half by superimposing on the latter.
  • the tilting table is formed by some conveyor straps mounted between rollers which are driven through a motor reduction gear.
  • the infeed of the folded boxes into the first stacking area is carried out with the help of some vanes to guarantee that the folded boxes which are fed in do not collide with the previous box, instead of by blowing with air, avoiding the upsetting of the boxes and the ensuing jams.
  • Those vanes besides assuring that the boxes do not collide with each other, have the function of avoiding the unfolding of said boxes, by applying thereon a downward pressure.
  • the vanes are also mounted at the infeed of the second stacking area, with the same functions and characteristics.
  • first pressing means In the first stacking area there are first pressing means and a first stop to retain the boxes being fed in, until the number of folded boxes is reached that form the first half of the package, so that when this is reached, the first stop tilts, and this first half package is pulled to the second stacking area, in which the formation of the second half of the package or stack has taken place simultaneously, there being in this stacking area another stop which in addition to retaining half of the package coming from the first stacking area, retains the other half of the package which is fed in superimposed on the first half of the package, the stop then swivelling and the pressing of the now complete package being carried out by means of a second pressing means located in this second stacking area, the operation of which is identical to that of the first pressing means of the first stacking area.
  • first conveyor belt on which the boxes are piled limited by the first stop
  • this conveyor belt transfers the first half package after the first stop tilts and with the help of first pressing means, toward the second stacking area.
  • second stacking area there is a support lift which receives the boxes coming from the upper conveyor belt, whilst at a lower level there is a second conveyor belt which receives the first half of the package.
  • a support lift which receives the boxes coming from the upper conveyor belt
  • second conveyor belt which receives the first half of the package.
  • the second half of the package stacked on the support lift On this is deposited the second half of the package stacked on the support lift, and the complete package is pulled toward the exterior by means of the second conveyor belt with the help of a second pressing means.
  • the first and second pressing means incorporate some vanes, of adjustable angular position, to facilitate the infeed of the boxes into the stacking area and prevent the unfolding of the boxes, and they consist of a strap adjustable in height which collaborates in pulling the boxes stacked together with the first and second conveyor belts respectively.
  • a first table lift is introduced on which the boxes are stacked limited by the first stop, this first table lift descends and comes to be introduced in a lower table which extends lengthwise until the second stacking area.
  • the means of displacement of the first half package are constituted by some transfer fingers of cyclic operation which are displaced in a central slot defined in the lower table to push the first half package toward the second stacking area with the help of some first pressing means.
  • a second table lift is also mounted which receives the boxes which are stacked forming the second half package, and on superimposing said table on the first half package, the complete package so formed is pushed, by means of the transfer fingers which traverse at the same time, a slot made in the second table lift and the slot defined in the lower table, directing the complete package toward the exterior of the machine.
  • the pulling of the first half package or of the complete package is favoured with some first and second pressing means respectively, consisting in a structure supported by some articulated arms which descends parallel to the lower table by pneumatic action and impinges by means of some wheels on the stack of boxes.
  • the machine For the operation of the machine, a number of specific parameters have to be taken into account, such as the height of the box, the number of boxes per package, thickness of the cardboard and defining whether boxes or sheets are passing, so that starting from these parameters, the machine carries out the automatic adjustment movements, among which it is necessary to point out the adjustment of position of the stops corresponding to the first and second stacking area and the manual adjustment of the transverse position of the machine.
  • the stacking machine of folded cardboard boxes or sheets comprises a general framework (1) formed by structures based on tubular sections fixed to each other, and fitted on their lower part with rollers (not shown) which allow the lateral displacement of the entire framework (1), with the object of aligning the machine as a whole with the centre of the sheets or cardboard boxes (2) which gain access to the interior of the machine coming from the corresponding folder.
  • an infeed area (3) Three well defined areas are established in said machine, an infeed area (3), a first stacking area (4) and a second stacking area (5), the infeed area (3) comprising a tilting table (6) formed by conveyor straps in which holes have been made for, by means of a fan, creating a vacuum effect which holds the glued cardboard boxes (2) on the tilting table (6) and allowing the pulling of the former from said infeed area (3) to the first stacking area (4).
  • the movement of the conveyor straps which define the tilting table (6) is implemented by means of rollers, the former being connected to an arm the actuation of which is what establishes or produces the tilting of said table (6) to occupy the position represented in figures 1 and 2, or 11 to 13 wherein the folded boxes (2) are fed into to the first stacking area (4), or said tilting table (6) is positioned such that the folded boxes (2) are diverted, as is represented in figures 3 to 5 or 14 to 18, via an upper conveyor belt (8) toward a second stacking area (5), all this with the object that in the first stacking area (4) it is possible to form a first half package (20) of folded boxes and in the second stacking area (5) it is possible to form a second half package (20') of folded boxes.
  • the respective incorporation is envisaged of some infeed vanes (10-10') which rotate by means of a servo-motor to adjust their angular position with respect to some infeed axles (12-12').
  • the stacking areas (4) and (5) incorporate a first pressing means (18, 31) and a second pressing means (18', 31') to facilitate the guided pulling of the first half package (20) and of the complete package (20") respectively, and also that they incorporate a first stop (9) and a second stop (9') which retain the boxes (2) during their stacking and tilt to facilitate their displacement once stacked.
  • first conveyor belt (7) onto which the folded boxes (2) are fed according to that represented in figures 1 and 2, to form the first half package (20).
  • first and second pressing means (18-18') incorporate some tilting intermediate vanes (11-11') which also are superimposed on the folded boxes (2) preventing them from unfolding.
  • intermediate vanes (11) are mounted on an axle (13) about which they tilt, which is formed, as is represented in figure 9, by an internal axle (14) and two end axles (15) external to the internal axle (14).
  • the vertical position of the internal axle (14) is defined by the action of a servo-motor, not shown, which acts on some gear wheels (17) foreseen on the ends of the internal axle (14) in combination with individual rack rails (16).
  • the end axles (15) define the position of the intermediate vanes (11), rotating likewise by means of a servo-motor.
  • the first pressing means (18) which comprise conveyor straps mounted between an axle (13) and a rear axle (19), tilt and press against that stack which forms the first half package of boxes (20), the first stop (9) being also able to tilt so that when the first half package (20) is formed the tilting takes place of the aforesaid first stop (9) and in turn the tilting of the first pressing means (18), as is represented in figure 4.
  • the arm connected to the infeed table (6) tilts and causes the latter to be positioned so that the folded boxes (2) are fed to the upper conveyor belt (8), those boxes (2) travelling toward the second stacking area (5), in which a support lift (21) has been foreseen which receives the boxes (2) which are fed over the upper conveyor belt (8) to form the second half package (20') of boxes, as is represented in figure 6.
  • the first conveyor belt (7) on which the first half package (20) of boxes is formed has descended until being located at the same height as a second conveyor belt (22) located in the lower part of that second stacking area (5) toward which this first half package is led.
  • This axle (13') corresponds to the second pressing means (18') foreseen in that second stacking area (5), which has a rear axle (19'), on which a roller has been foreseen driven by means of a servo-motor.
  • the rear axle (19) of the first pressing means (18) rotates when the straps of the first conveyor belt (7) are moved, since they are joined mechanically with the same belt, so that when the straps of the first conveyor belt (7) advance, the straps of the first pressing means (18) also advance in the same direction.
  • the rear axle (19) is moved by means of a strap, while the axle (19') is moved by a motor which rotates in synchronism with the straps of the second conveyor belt (22).
  • the remaining components which constitute the first and second pressing means (18) and (18') and their functionality are the same.
  • this second stacking area (5) is the second stop (9') of greater length than the first stop (9') of the first stacking area (4), since said second stop (9') is foreseen to retain not only the second half package of boxes (20') which have to be formed in that second stacking area (5), but also the first half package (20) which was formed in the first stacking area (4) and reaches the second conveyor belt (22), pulled by the conveyor belt (7), until impinging on the aforementioned second stop (9').
  • the pressing means (18) or (18') are moved forward or backward, in accordance with the stop (9) or (9'), with the particularity that the forward motion of each pressing unit (18) or (18') is carried out with a ratio of 2/1 with respect to the respective stop (9) or (9'), which is possible because the pressing means (18) or (18') are fastened at their two ends to the same guide as the stop (9) or (9') and their horizontal position depends on the gearing and on the sheaves which rotate when the sheave of the stop (9) or (9') rotates.
  • the operation of the machine begins with the loading of data from a robot or from a touch screen operating panel, the following parameters being required to render it operable:
  • the machine carries out the necessary adjustment movements which are, adjustment of position of the stops (9) and (9'), as well as adjustment of transversal position of the support lift (21) and adjustment in position height-wise of the second conveyor belt (22), all these adjusting movements being automatic, it being necessary to carry out manually the adjustment in transversal position of the machine itself.
  • the operating order can be given, so that all the movements will be carried out in a synchronized manner to obtain firstly the first half package (20) and subsequently the second half package (20'), the two being joined to each other thereafter and finally transported by the second conveyor belt (22) toward the exit.
  • the first conveyor belt (7) begins to descend at constant speed, the speed of descent being a function of the speed of the machine and the thickness of the cardboard which constitutes the box (2), taking into account whether it is a box or a sheet. That first conveyor belt (7) will descend until the first half package (20) is complete.
  • the descent movement will be confirmed, and if the following box is not detected in a period greater than one cycle, the first conveyor belt (7) will be stopped and will not move until the infeed of the following box is detected.
  • the formation of the first half package (20) in the first stacking area (4) is carried out in the manner already described, so that when that first half package (20) is complete, the first pressing means (18) descend and at the same time, and by means of the corresponding actuation cylinders the first stop (9) is made to tilt, and during that time they are used to align the final boxes (2). Also the height of the first conveyor belt (7) is adjusted and of the first pressing means (18) to be made equal to the second conveyor belt (22).
  • the conveyor belts (7) and (22) are started in order to pass said first half package (20) to the second conveyor belt (22), until it impinges on the second stop (9').
  • the motor that drives the first conveyor belt (7) also drives, by means of a belt transmission, the corresponding straps of the first pressing means (18), holding and pulling the first half package (20) from above.
  • That same process is carried out in a similar way in the second stacking area (5), with the difference that in this case the boxes (2) are deposited on a support lift (21) formed by four supports which emerge or retract laterally and allow the second half package (20') to be sustained or let fall on the first half package (20), so that once the second half package (20') is on the first half package (20), forming the complete package (20"), the latter is extracted by means of the second conveyor belt (22) and the straps of the second pressing means (18') to the exit from the machine.
  • the second conveyor belt (22) and the second pressing means (18') are stopped, the latter begins to rise and also the support lift (21) rises, the four supports of said table being opened and the cylinders which act on the second stop (9') being opened.
  • the second stacking area (5) is ready to receive boxes, as well as the first half package (20) of the following cycle.
  • the machine In the event of the job order ending without completing a package, the machine would remain in standby, in which case one would act on an incomplete cycle button on the operating panel and the cycle would end with the boxes that there were at that moment, so that if the first half package had not been completed, this would be extracted directly to the exit. However, if it is the second package that remains to be finished, the first half package would be waiting under the second half package, the latter being appended with the boxes that it had at that moment and the incomplete package would be extracted, the machine returning to the position for beginning of the cycle, so that in that position it is possible to recommence the cycle or carry out the total shutdown of the machine.
  • the machine will be completed with means for detecting jamming, such as an infeed detector, an infeed detector to the first stacking area, an infeed detector to the second stacking area, a detector at the output from the infeed area, etc., the detectors working so that they have the time corresponding to a box cycle, from in each of them the infeed of the box is detected until the exit of the box is detected.
  • the detectors working so that they have the time corresponding to a box cycle, from in each of them the infeed of the box is detected until the exit of the box is detected.
  • exit detectors of the first half package and exit detectors of the final package having the time corresponding to a package cycle to detect the exit thereof and allow the step for the formation of the following package.
  • the stacking machine incorporates a first table lift (32) instead of the first conveyor belt (7) on which the folded boxes (2) will be stacked coming from the tilting table (6) being retained by the first stop (9).
  • Said first table lift (32) descends progressively as the boxes are stacked until being introduced into a lower table (33) which extends the length of this first stacking area (4) and of the second stacking area (5), said first table lift (32) and lower table (33) having a longitudinal slot for the passage of some transfer fingers (34), which push the first half package (20) formed on the lower table (33), when the first stop (9) has been turned upward, toward the second stacking area (5) in collaboration with the first pressing means (31) which maintain the first half package (20) pressed against the lower table (33) during the displacement thereof.
  • the first half package (20) is displaced by the push of the transfer fingers (34) toward the second stacking area (5) until it impinges against the second stop (9').
  • a second table lift (30) has been foreseen on which the folded boxes (2) are stacked coming from the upper conveyor belt (8) being retained by the second stop (9').
  • the second table lift (30) descends progressively in height as the boxes (2) are stacked on top until impinging on the first half package (20) which is standing on the lower table (33) coming from the first stacking area (4).
  • first half package (20) and the second half package (20') is pushed by means of the transfer fingers (34) which traverse a slot defined in the second table lift (30) at the same time as they traverse the slot of the lower table (33).
  • the first half package (20) and the second half package (20') are pushed by said drawing means (34) to form the complete package (20") which is transferred toward the exterior with the help of the second pressing means (31').
  • the transfer fingers (34) are mounted on a chain which follows a cyclic path around the lower table (33).
  • the first and second pressing means (31-31') consist of individual structures formed from sections supported by some articulated arms (34-34') actuated by a pneumatic system which define the movement of the structure in parallel with respect to the lower table (22), it being foreseen that the lateral sections of the structure incorporate in their base some idler contact wheels which impinge on the first half package (20) or on the complete package (20") respectively.
  • the lower table (33) is formed by support sections which have idler wheels on which the stacked boxes rest to facilitate their transfer.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
EP03792433A 2002-08-20 2003-08-20 Stapelmaschine für gefaltete pappschachteln oder bögen Withdrawn EP1541512A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
WOPCT/ES02/00407 2002-08-20
ES0200407 2002-08-20
PCT/ES2003/000430 WO2004018339A1 (es) 2002-08-20 2003-08-20 Máquina apiladora de planchas o cajas de cartón plegadas

Publications (1)

Publication Number Publication Date
EP1541512A1 true EP1541512A1 (de) 2005-06-15

Family

ID=31897048

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03792433A Withdrawn EP1541512A1 (de) 2002-08-20 2003-08-20 Stapelmaschine für gefaltete pappschachteln oder bögen

Country Status (5)

Country Link
US (1) US20050280203A1 (de)
EP (1) EP1541512A1 (de)
AU (1) AU2003260521A1 (de)
MX (1) MXPA05001983A (de)
WO (1) WO2004018339A1 (de)

Cited By (1)

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WO2013113488A1 (fr) * 2012-02-03 2013-08-08 Bobst Mex Sa Procede de prelevement d'echantillons dans une machine de conditionnement d'objets plats et machine de conditionnement pour la mise en oeuvre d'un tel procede

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BR112012028916A2 (pt) * 2010-05-12 2016-07-26 Macarbox S L U máquina de empilhado de artigos planos
JP6186810B2 (ja) * 2013-03-29 2017-08-30 ブラザー工業株式会社 画像形成装置
US10549940B2 (en) * 2015-09-25 2020-02-04 Totani Corporation Sheet product stacking and feeding apparatus
CN114194907A (zh) * 2021-12-17 2022-03-18 陈隆权 一种瓦楞纸箱制作智能整平码垛机械及方法

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013113488A1 (fr) * 2012-02-03 2013-08-08 Bobst Mex Sa Procede de prelevement d'echantillons dans une machine de conditionnement d'objets plats et machine de conditionnement pour la mise en oeuvre d'un tel procede
US9517912B2 (en) 2012-02-03 2016-12-13 Bobst Mex Sa Method for collecting samples of flat objects in a packaging machine and packaging machine for implementing said method

Also Published As

Publication number Publication date
US20050280203A1 (en) 2005-12-22
AU2003260521A1 (en) 2004-03-11
WO2004018339A1 (es) 2004-03-04
MXPA05001983A (es) 2005-04-28

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