EP0978454A1 - Vorrichtung und Verfahren zum Entfalten von faltbaren Kisten und Verfahren zum Entleeren von Kisten - Google Patents

Vorrichtung und Verfahren zum Entfalten von faltbaren Kisten und Verfahren zum Entleeren von Kisten Download PDF

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Publication number
EP0978454A1
EP0978454A1 EP99202527A EP99202527A EP0978454A1 EP 0978454 A1 EP0978454 A1 EP 0978454A1 EP 99202527 A EP99202527 A EP 99202527A EP 99202527 A EP99202527 A EP 99202527A EP 0978454 A1 EP0978454 A1 EP 0978454A1
Authority
EP
European Patent Office
Prior art keywords
crate
crates
guiding
unfolding
curve
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Withdrawn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
EP99202527A
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English (en)
French (fr)
Inventor
Hendrik Jan Arie Verheul
Adri Bijl
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.)
Systemate Group BV
Original Assignee
Systemate Group BV
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 Systemate Group BV filed Critical Systemate Group BV
Publication of EP0978454A1 publication Critical patent/EP0978454A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/265—Opening, erecting or setting-up boxes, cartons or carton blanks

Definitions

  • the invention relates to a device for unfolding foldable crates and an accompanying method, and also to a method for emptying crates with the help of the device.
  • Foldable crates have a bottom with two hingable longitudinal walls and hingable head walls.
  • first the head walls are folded to the inside and subsequently the longitudinal walls are folded over them.
  • When unfolding first the longitudinal walls are put straight up and subsequently the head walls are unfolded in between them, until with the help of a locking mechanism, they are fixed straight up between the longitudinal walls.
  • a device for unfolding foldable crates, which crates comprise a bottom-with two longitudinal walls and two head walls, which can be placed in a folded position and an unfolded position, the device comprising a frame and means for engaging the crate, means to carry the crate along, means for placing the crate in reversed position and means for bringing the crate in its unfolded position.
  • the bottom of the crate is engaged, after which the engaging means are carried along by means for carrying along in order to convey the crate further. While it is carried along the crate is reversed with the help of reversing means.
  • the walls of the crate will unfold under the influence of gravity, the longitudinal walls then hanging down completely vertically and the head walls in between the longitudinal walls being partially unfolded.
  • the unfolding means will be able to easily engage onto the walls of the crate, and push the head walls into an entirely vertical position and click them fixed between the longitudinal walls. Subsequently the unfolded crate can be discharged.
  • the engaging means comprise two grippers, which are able to engage the bottom of the crate on both sides of the crate, the grippers being shaped such that they are able to engage onto cams on the bottom of the crate and/or into recesses in the bottom of the crate. In this way the crate can be held firmly and completely determined as regards position.
  • the engaging means are connected to endless circulating first conveying means for carrying along an engaged crate.
  • the first conveying means convey the engaged crate further, so that a crate supplied next can be engaged, and the engaged crate during conveying is carried along to the reversing means.
  • the first conveying means comprise two parallel chains, on which at mutual equal distances the grippers are arranged opposite each other and directed towards each other, so that the chains are able to convey the supplied crates with equal intermediate distances.
  • the reversing means comprise guiding means, which are attached to the engaging means, which guiding means can be guided along first guiding tracks on the frame.
  • the first guiding tracks also determining the position of the engaging means and therefore the position of the crate as a result of the guiding they are offering the guiding means.
  • the first guiding tracks have a first path along which the guiding means pivot the engaging means over substantially 90°, and having a second path along which the guiding means pivot the engaging means over an additional 90°, as a result of which the crate is reversed in two steps.
  • the guiding means comprise a cross, at the ends of which rolls are attached which run along or in a first guiding track, so that the engaging means can always easily be rotated over 90°, after which a next roll is available for guiding through the first guiding tracks.
  • the first path is formed by a guiding track bent over an arc of approximately 90°
  • the second path is formed by a revolving curve, through which a roll on the cross of the guiding means runs, which revolving curve is formed such that when passing through the curve the cross rotates over approximately 90°.
  • the cross is first moved upwards with two rolls along a vertical guiding track and after that along the arc to a horizontal guiding track, and thus rotated a quarter of a turn. Subsequently a roll of the cross runs like a cam through the revolving curve, the cross rotating another quarter of a turn. As a result the crate is completely reversed.
  • the unfolding means comprise pressing means, which are able to engage the head walls of a crate, which pressing means can be moved between a rest position and a click position the crate then being placed in the unfolded position, so that the pressing means will press the partially unfolded walls of the crate into the entirely unfolded position.
  • the pressing means are attached to endless second conveying means, which are partially parallel to and moveable with equal speed as the means which carry along the crates, and preferably the second conveying means comprise two parallel chains, on which the pressing means are arranged at mutually equal distances.
  • the pressing means are moved with the same speed as the crate itself, parallel to the crate carried along, in order to entirely unfold the crate during moving along.
  • the pressing means are connected to a guiding means, which can be guided in a click curve, to move the pressing means to their click position.
  • the guiding means is forced by the click curve to pass through a certain track, as a result of which the pressing means connected thereto are also forced to take certain positions.
  • the pressing means By passing through the click curve the pressing means, which have been inserted in the partially unfolded crate, are spread, as a result of which they push the head walls into the entirely unfolded position and click them fixed between the longitudinal walls.
  • the click curve is passed through further the pressing means are retracted again.
  • the click curve has a curve track for long crates and a curve track for short crates, in which one of the two curve tracks can be closed off by means of a switch, so that it is possible to unfold crates of two different lengths with the device, and to be able to switch immediately from the one length to the other with the help of the switch.
  • the click curve has to be shaped differently, because otherwise the pressing means would be spread too far.
  • a method for unfolding foldable crates with the help of the device described above, the crates being supplied in folded position, after which the crates are engaged one by one by the engaging means, after which the crates are moved upwards and subsequently carried along in longitudinal direction, the crates tilting over approximately 90° at the transition from vertical to horizontal, and the crates being tilted additionally over approximately 90° during the horizontal conveyance, so that the crates take up a reversed position and the walls of each crate partially unfold under the influence of gravity, after which the crate unfolding means are inserted into the partially unfolded crate and urge the crate into a completely unfolded position, after which the unfolded crates are discharged.
  • the crates are emptied to remove dirt and the like that may be present, from the crates.
  • Loose dirt, such as leaves of vegetables previously stored in the crates will not end up the washing device for the crates which is placed after the device according to the invention.
  • emptying with the help of emptying means in some cases washing the crates is not necessary any more.
  • the crates when being discharged are brought at supply level again, the crates then being discharged either reversed or straight up whatever is wanted, so that the user of the device according to the invention can decide for himself whether the unfolded crates leave the device straight up or reversed.
  • a method for cleansing the crates with the device described above, the crates being engaged with the help of the device and subsequently being reversed, after which the crates are emptied with the help of emptying means in order to remove dirt and the like that may be there, from the crates.
  • the device according to the invention can also be used to empty normal crates that cannot be unfolded.
  • emptying means for the crates have to be provided of course.
  • the crate unfolding means of the device do function, but of course have no influence on the crates that cannot be unfolded.
  • the crates after being emptied are either discharged reversed or straight up whatever is wanted. Possibly the device can also be used to only reverse the crates, without emptying them.
  • FIG. 1 shows the device 100 according to the invention for unfolding foldable crates in front view. Certain parts A, B, C, E of the device will be elucidated separately below.
  • the device 100 has a frame 101 with two chains 102 placed one after the other which are circulating about sprocket wheels 103, which sprocket wheels 103 are positioned in a rectangular. One sprocket wheel 103 is driven by a driving unit.
  • the device 100 has an endless conveyor belt 105 which runs between the chains. To the frame 101 guide tracks 106, 107, 108 and 109 are arranged, which will be discussed below.
  • Folded crates 1 are supplied on the left-hand side of the device 100 with the help of conveying means that are not shown.
  • the crates are engaged by the gripper mechanisms 110, which gripper mechanisms run along the guiding tracks 106 to 109 in order to place the crate in a certain position.
  • the gripper mechanisms 110 which gripper mechanisms run along the guiding tracks 106 to 109 in order to place the crate in a certain position.
  • the crate In the positions 2 and 3 the crate is reversed.
  • the position 4 the crate is placed completely unfolded and straight up on the conveyor belt 105 to be discharged by means of discharging means that are not shown.
  • FIG. 2 shows the device 100 according to the invention partially in side view with the left sprocket wheels 103, over which the chains 102 circulate.
  • Each chain 102 is provided with a number of gripper mechanisms 110 which are always placed in pairs opposite each other, at mutual equal distances.
  • a gripper mechanism 110 is shown in the figures 3A and 3B and has a gripper 111, four rods 112 which are placed in the shape of a cross and provided at their ends with gripper rolls 113, a rod 114 which is slidable through a link of the chain 102 and slidable through sliding sleeves 116, the gripper 111 being adjustable at a certain distance from the chain 102 with the help of the adjusting nuts 117 and a push spring 115.
  • the gripper 111 is shaped such that it is able to engage into a cam 9 of the crate 1 (see figure 4), which cam 9 is part of both the longitudinal side surfaces of the bottom of the crate 1, and which cam 9 is situated halfway the crate 1 between two recessed portions in the side surfaces of the bottom of the crate 1.
  • ball bearings 118 are provided which when the chain is circulating along the gripper tensioning tracks 119 (see figure 2) are guided to pull the gripper to the outside, so that the gripper 111 can engage over a cam 9 of a crate 1 at the end of the gripper tensioning track 119.
  • Figure 4 shows the lower left corner of the device 100 according to the invention in which the folded crate 1 with a cam 9 halfway the bottom of the crate, a part of the frame 101, a part of the chain 102, a sprocket wheel 103, a part of the conveyor belt 105, a part of the guiding track 106 and of the guiding track 107, and the cross of a gripper mechanism 110 are shown again.
  • a stop 6 is attached, so that the crate 1 is stopped exactly in the position in which the cam 9 is placed along the track of the chain 102.
  • the stop 7 is present for shorter foldable crates. It can be seen that the guiding tracks 106 and 107 at circulation of the chain 102 will accurately guide two gripper rolls 113 of the gripper mechanism 110, so that the gripper mechanism 110 will always take up an accurately determined position.
  • Figure 5 shows the upper left portion of the device 100 according to the invention, which directly connects to the lower left portion according to figure 4.
  • the gripper mechanism 110 moves on the gripper mechanism 110 from figure 4 is moved further upwards along the guiding track 107. In this position the gripper 111 is horizontal.
  • the cross of the locking mechanism 110 is guided along a part of the track 107 with the shape of a quarter of circle, as a result of which the gripper 111 will be vertical.
  • the vertical placement of the gripper 111 is indicated with the position 110A of the gripper mechanism.
  • the gripper mechanism 110 When the gripper mechanism 110 is carried along further by the chain 102 to the position 110B the first of the bottom two gripper wheels of the gripper mechanism is guided into a revolving curve 121, which revolving curve 121 is arranged in a revolving plate 120, as a result of which the gripper roll 113A during passing through the revolving curve 121 rotates the cross and in that way the entire locking mechanism 110 a quarter of a turn, so that the gripper wheel 113A after passing through the revolving curve 121 is the last of the two bottom gripper wheels.
  • the gripper 111 is in that way rotated an additional quarter of a turn and in that way with respect to the situation in figure 4 reversed.
  • Figure 6 shows the part C of the device 100 according to figure 1.
  • Figure 6 shows a conveying mechanism 130 for an unfolding mechanism 140 with which a partially unfolded crate can be completely unfolded.
  • the conveying mechanism 130 has two chains 131 of which only the front one can be seen, which each run about two sprocket wheels 132.
  • the right sprocket wheel 132 is driven by means of a driving chain 134, which in its turn is driven by one of the other sprocket wheels 103 of the device (see figure 1).
  • a guideway 135 for the unfolding mechanism 140 is arranged around the largest part of the chain track of the front chain 131 .
  • the guideway 135 is interrupted for a click plate 136 in which a click curve 137 for the unfolding mechanism 140 is arranged.
  • On the chains 131 at mutual equal distances a number of unfolding mechanisms 140 are arranged (these are not all shown).
  • FIG. 7 shows the unfolding mechanism in more detail.
  • the unfolding mechanism 140 has a click roll 141 which is guided along the guideway 135 and through the click curve 137.
  • the click curve 141 is connected to the click rod 142, which is connected to an axis of rotation 143 and a transverse rod 144, two swivel rods 145 being arranged at the ends of the transverse rod 144, which swivel rods are hingably connected to the pressing rods 146 which lie on a bearing about bearing axes 147 to the chain 131.
  • the pressing rods 146 have pressure rods 148 extending upwards, which at their ends are provided with pressing cams 149.
  • FIG 8 shows the click plate 136 as shown in figures 6 and 7 in more detail.
  • the click plate 136 has two click curves 137A and 137B which with the help of a switch 138 respectively can be closed off.
  • the click curve 137A is meant for guiding the click roll 141 when large crates have to be unfolded.
  • the switch 138 then closes off the click curve 137B.
  • the click curve 137B is meant for guiding the click roll 141 when small crates have to be unfolded.
  • the click rod 142 is not swivelled as far, as a result of which the pressure rods 148 are swivelled less far to the outside. In this way the head walls of the shorter crates can be clicked fixed in their unfolded position.
  • separate surfaces 150 are provided (see figure 7) in the pressing blocks 149.
  • Figure 9 shows the lower right portion of the device 100 according to the invention as can be seen in figure 1.
  • a gripper mechanism 110 namely is rotated a quarter of a turn, just as was the case in the upper left sprocket wheel 103 from figure 5.
  • a crate carried along between two gripper mechanisms 110 is therefore vertical when the chains leave the upper right sprocket wheel 103.
  • the gripper mechanism is rotated yet another quarter of a turn, as a result of which it is finally placed straight up on the conveyor belt 105.
  • the bearings 118 of the gripper mechanism 110 are guided along the gripper tensioning plates (not shown), as a result of which the gripper mechanisms 110 let go of a crate, so that it can be discharged by means of discharging means that are not shown.
  • the switching plate 160 can also be arranged in a mirrored way, as a result of which the gripper mechanism when passing through the switching curve 170 is rotated a quarter of a turn back, so that the crate 4 is placed upside down on the conveyor belt 105. This is advantageous when the crated after unfolding for instance have to be supplied to a washing device.
  • a folded crate 1 is supplied via supply means that are not shown to the conveyor belt 105 and are stopped by the stop 6. All following crates to be supplied are contiguous to this, so that the crates are automatically buffered in the horizontal plane.
  • the crates are vertically carried along upwards one by one from this buffer, as will now be described.
  • the two chains 102 carry along two gripper mechanisms 110 placed across each other, which are guided along the guide track 106 and after that along the guiding track 107.
  • the grippers 111 are pulled to the outside because the bearings 118 are guided along the gripper tensioning tracks 119.
  • the gripper tensioning tracks 119 end and the push springs 115 of the gripper mechanism 110 push the grippers 111 to the crate 1, where the grippers 111 engage about the cams 9 of the crate 1.
  • the crate 1 is engaged in that way by the gripper mechanisms 110 and the position of the crate is determined by the position of the gripper mechanisms.
  • the gripper mechanisms 110 carry the crate along further upwards along the guide track 107 and place the crate straight up rotated over approximately 90° after passing through the portion of the guide track 107 with the shape of a quarter of a circle near the upper left sprocket wheel 103.
  • the crate is subsequently conveyed further by means of chains and the gripper mechanisms, and at the same time an unfolding mechanism 140 is supplied by the conveying mechanism 130 and inserted into the partially unfolded crate.
  • the crate and the unfolding mechanism 140 are subsequently further conveyed in a synchronous manner, the click roll 141 of the unfolding mechanism 140 passing through the click track 137, as a result of which the pressing blocks 139 which are in the partially unfolded crate are swivelled to the outside, so that pressing blocks 149 engage the head walls of the crate and press it into the completely unfolded position, the head walls of the crate then clicking fixed between the longitudinal walls.
  • the click roll 141 is subsequently carried along upwards again through the click curve 137, as a result of which the pressing blocks 149 swivel to each other again, and when passing through the right pressing sprocket wheel 132 the pressing mechanism 140 is removed from the now completely unfolded crate.
  • the crate between the gripper mechanisms then passes through the portion of the guide track 108 with the shape of a quarter of a circle and is in that way brought into a vertical position, after which the crate when passing through the switching curve 170 is either tilted 90° further or tilted 90° back, so that crate 4 is placed either straight up or reversed on the conveyor belt 105 and can subsequently be discharged.
  • the gripper mechanisms let go of the crate 4 because the bearings 118 are guided along the gripper tensioning plates, which are arranged just above the conveyor belt 105.
  • a further embodiment of the invention has a mechanism which taps the crate empty which is arranged directly after the revolving curve 121.
  • This mechanism to tap the crate empty (which is not shown) will engage on the incompletely unfolded crate to remove material possibly present in the crate from the crate.
  • Below the mechanism for tapping the crates empty a discharge mechanism for said material can be arranged.
  • the device 100 according to the invention which is provided with a mechanism for tapping the crates empty is also suitable for normal crates, which with the help of the device can be turned around and then with the help of mechanism for tapping the crates empty can be emptied.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
EP99202527A 1998-08-04 1999-08-03 Vorrichtung und Verfahren zum Entfalten von faltbaren Kisten und Verfahren zum Entleeren von Kisten Withdrawn EP0978454A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1009800A NL1009800C2 (nl) 1998-08-04 1998-08-04 Inrichting en werkwijze voor het uitvouwen van opvouwbare kratten, en werkwijze voor het ledigen van kratten.
NL1009800 1998-08-04

Publications (1)

Publication Number Publication Date
EP0978454A1 true EP0978454A1 (de) 2000-02-09

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ID=19767605

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99202527A Withdrawn EP0978454A1 (de) 1998-08-04 1999-08-03 Vorrichtung und Verfahren zum Entfalten von faltbaren Kisten und Verfahren zum Entleeren von Kisten

Country Status (2)

Country Link
EP (1) EP0978454A1 (de)
NL (1) NL1009800C2 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1375355A2 (de) * 2002-06-28 2004-01-02 Karl Fiederling Vorrichtung zum Entfalten und Weiterleiten von Klappbehältern
NL1025167C2 (nl) * 2004-01-05 2005-07-06 Systemate Group Bv Inrichting voor het uitvouwen van vouwkratten.
NL1025185C2 (nl) * 2004-01-07 2005-07-08 Systemate Group Bv Inrichting voor het invouwen van kratten.
NL1028457C2 (nl) * 2005-03-03 2006-09-06 Systemate Group Bv Invouwinrichting voor vouwkratten.
ES2394794A1 (es) * 2011-03-24 2013-02-05 Talleres Cortes S.L. Dispositivo para el desplegado de cajas
WO2022067452A1 (es) * 2020-09-29 2022-04-07 Wenco S.A. Máquina y método para el armado automatizado de cajas plegables

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1026875C2 (nl) * 2004-08-19 2006-02-21 Systemate Group Bv Uitvouwinrichting voor kratten.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9405299U1 (de) * 1994-03-29 1994-05-26 Meurer, Gerhard, Dipl.-Ing., 37574 Einbeck Vorrichtung zum Auffalten von Kisten
WO1996020113A1 (de) * 1994-12-23 1996-07-04 Frutmac S.R.L. Aufklappvorrichtung für zusammenfaltbare steigen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9405299U1 (de) * 1994-03-29 1994-05-26 Meurer, Gerhard, Dipl.-Ing., 37574 Einbeck Vorrichtung zum Auffalten von Kisten
WO1996020113A1 (de) * 1994-12-23 1996-07-04 Frutmac S.R.L. Aufklappvorrichtung für zusammenfaltbare steigen

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1375355A2 (de) * 2002-06-28 2004-01-02 Karl Fiederling Vorrichtung zum Entfalten und Weiterleiten von Klappbehältern
EP1375355A3 (de) * 2002-06-28 2005-05-04 Karl Fiederling Vorrichtung zum Entfalten und Weiterleiten von Klappbehältern
NL1025167C2 (nl) * 2004-01-05 2005-07-06 Systemate Group Bv Inrichting voor het uitvouwen van vouwkratten.
NL1025185C2 (nl) * 2004-01-07 2005-07-08 Systemate Group Bv Inrichting voor het invouwen van kratten.
EP1553022A1 (de) * 2004-01-07 2005-07-13 Systemate Group B.V. Vorrichtung zum Einklappen von Steigen
NL1028457C2 (nl) * 2005-03-03 2006-09-06 Systemate Group Bv Invouwinrichting voor vouwkratten.
EP1702850A2 (de) * 2005-03-03 2006-09-20 Systemate Group B.V. Vorrichtung zum Einklappen von Steigen
EP1702850A3 (de) * 2005-03-03 2006-09-27 Systemate Group B.V. Vorrichtung zum Einklappen von Steigen
ES2394794A1 (es) * 2011-03-24 2013-02-05 Talleres Cortes S.L. Dispositivo para el desplegado de cajas
WO2022067452A1 (es) * 2020-09-29 2022-04-07 Wenco S.A. Máquina y método para el armado automatizado de cajas plegables

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