EP0532947A1 - Verfahren und Vorrichtung zum Transportieren und Verschliessen von Verpackungen - Google Patents

Verfahren und Vorrichtung zum Transportieren und Verschliessen von Verpackungen Download PDF

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Publication number
EP0532947A1
EP0532947A1 EP92114559A EP92114559A EP0532947A1 EP 0532947 A1 EP0532947 A1 EP 0532947A1 EP 92114559 A EP92114559 A EP 92114559A EP 92114559 A EP92114559 A EP 92114559A EP 0532947 A1 EP0532947 A1 EP 0532947A1
Authority
EP
European Patent Office
Prior art keywords
belt
swivel
packaging
upper belt
swivel belt
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Withdrawn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
EP92114559A
Other languages
German (de)
English (en)
French (fr)
Inventor
Janos Bodan
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.)
August Krempel Soehne GmbH and Co KG
Original Assignee
August Krempel Soehne GmbH and Co 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 August Krempel Soehne GmbH and Co KG filed Critical August Krempel Soehne GmbH and Co KG
Publication of EP0532947A1 publication Critical patent/EP0532947A1/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Withdrawn legal-status Critical Current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
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/52—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using roller-ways or endless conveyors
    • 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/04—Applying separate sealing or securing members, e.g. clips
    • 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
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/003—Arrangements to enable adjustments related to the packaging material
    • 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
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/005—Adjustable conveying means
    • 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
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/02—Arrangements to enable adjustments to be made while the machine is running

Definitions

  • the invention relates to a method for transporting and closing packaging, in which the packaging is advanced between at least one upper band and at least one lower band and then closed by fastening a closing part.
  • the invention further relates to a device suitable for carrying out the method.
  • a piece of packaging After a piece of packaging has been inserted into a bag-shaped packaging, it is closed in a conventional manner after a closing part, which is usually designed as a tab, is folded down by pressing the self-adhesive closing part onto the outside of the packaging.
  • a closing part which is usually designed as a tab
  • the packaging After the packaging has been filled, it can be transported between a lower belt and an upper belt to the clamping unit, where the packaging is closed.
  • the packaging height is determined by the distance between the upper belt and lower belt, the distance between the upper belt and lower belt must be readjusted if the height of the packaging changes when the type of packaging is changed.
  • the present invention is accordingly based on the object of providing a method and a device for transporting and closing packaging, with which reliable function is ensured in a simple manner even when the height of the respective packaging changes frequently.
  • the distance between the upper belt and lower belt is set by a swivel belt protruding from the upper belt against the direction of transport, for which purpose the upper belt and the swivel belt are spring-loaded before the packaging is brought into a lower basic position be held in suspension, and the swivel belt with its front end, viewed in the direction of transport, is initially placed obliquely upwards, whereupon the swivel belt is aligned horizontally when a package is fed up to a predetermined distance from the swivel belt, whereby the one-sided on the packaging to the system coming swivel band is lifted until the swivel band lies horizontally on the top of the packaging and at the same time the top band is adjusted to the height of the packaging.
  • this object is achieved according to the invention in that, in a device of the type mentioned at the outset, the upper belt is vertically movable parallel to the lower belt against a spring force, in that a swivel belt is provided which, viewed in the direction of transport, has a rear end that is rotatable with the upper belt is connected and with its, seen in the direction of transport, front end can be adjusted obliquely upwards by means of a lifting cylinder, that the swivel band and the upper band are kept somewhat suspended by at least one spring element, whereby they are acted upon with a low vertical force, and that the swivel band is above the lifting cylinder can be aligned horizontally in order to adjust the distance of the swivel belt, which initially lies obliquely against the packaging, and of the upper belt from the lower belt to the height of the packaging.
  • the upper belt is set to a distance from the lower belt which is predetermined by the height of the respective packaging, by means of the swivel belt which projects obliquely upwards in the direction of the incoming packaging.
  • the upper belt is held in a lower basic position by the spring force and the swivel belt is tilted upwards.
  • the lifting cylinder is acted on so that the swivel belt moves downward with its end protruding counter to the transport direction.
  • the inclined swivel belt thus comes to rest on the rear edge of the packaging, as seen in the transport direction, whereupon the swivel belt carries out a rolling movement on this edge, the front one
  • the end of the swivel belt is moved down and the rear end of the swivel belt is moved up until the swivel belt lies horizontally on the top of the packaging and the upper belt is adjusted to the height of the packaging.
  • the automatic adjustment of the top belt prevents incorrect settings and compensates for differences in the height of individual packaging.
  • the floating suspension eliminates the risk of damage to the packaging or the contents of the packaging as a result of incorrect settings. In this way, a malfunction is effectively avoided even in fully automatic continuous operation.
  • the swivel belt adjusts itself to the incoming packaging at an early stage, timely adjustment of the vertical position of the top belt to the height of the packaging is guaranteed. Since considerable inertial forces can occur during the parallel displacement of a conveyor belt, the adjustment speed and thus also the packaging speed is limited. Since the swivel belt is only pivoted with its front end and the rear end gradually contacts the packaging, disadvantages due to inertia are compensated for. The consequence of this is that the packaging speed can be increased considerably compared to conventional processes.
  • the lower belt, the upper belt and the swivel belt are stopped as soon as an incoming packaging has reached a predetermined distance from the swivel belt.
  • the lower band, upper band and The swivel belt is then switched on again to advance the packaging as soon as the swivel belt is aligned horizontally and the swivel belt and top belt are adjusted to the height of the packaging.
  • This measure has the advantage that the packaging cannot move laterally during the adjustment movement of the swivel belt and the upper belt.
  • the forces acting on the packaging are also kept particularly low in this way. Since the device operates intermittently due to the integrated clamping unit, the processing speed is not adversely affected thereby.
  • the swivel belt is again inclined upwards in order to enable the arrangement to be adjusted to the height of a subsequent packaging.
  • the swivel belt and the upper belt form a continuous belt, the swivel belt being designed as a pivotable belt part of the upper belt projecting from the upper belt in the opposite direction of transport.
  • the upper belt is guided vertically displaceably via at least one vertical support, and the swivel belt is held at its second end via the lifting cylinder, which engages one of the vertical supports at a fixed distance from the upper belt.
  • This measure has the advantage that both ends of the swivel belt are coupled to the upper belt, so that with a vertical displacement of the rear end of the swivel belt and thus also of the upper belt, the front end of the swivel belt is simultaneously shifted vertically by a corresponding amount.
  • a control device which emits a switching signal to a switching valve for the lifting cylinder in order to incline the swivel belt before the arrival of a package, which further emits a switching signal when a predetermined distance between the incoming packaging and the swivel belt is reached, in order to To stop the upper belt, the swivel belt and the lower belt and to switch the switching valve for the horizontal alignment of the swivel belt, and which emits another switching signal to put the upper belt, the swivel belt and the lower belt into operation again after the swivel belt has been aligned horizontally.
  • the belts are stopped by the control device and the lifting cylinder, which is preferably designed as a double-acting pneumatic cylinder, is activated until the swivel belt and upper belt have adjusted to the height of the packaging, whereupon the belts be put back into operation via the control device.
  • the lifting cylinder which is preferably designed as a double-acting pneumatic cylinder
  • the packaging is advantageously between the lower belt and a continuous tread on the top, which is through the upper belt and the upstream, horizontally aligned swivel belt is formed, transported.
  • the spring force of the spring elements is largely independent of the spring travel.
  • the spring force of the spring elements is adjustable.
  • the clamping unit is fastened to a holder which can be moved in the vertical direction together with the upper belt.
  • a guide plate extending in the feed direction of the lower belt is provided for the vertical installation of a closing part which projects laterally from a package.
  • the closing part is brought into a suitable position during the feed movement in order to be closed by means of the closing unit arranged below.
  • the closing unit has a hold-down device for holding down the top of the packaging, a side slide for folding the closing part over the hold-down device and a vertically movable closer for closing the packaging from above.
  • a packaging device designated as a whole by the number 10, has three driven belts according to FIGS. 1a-1c, a lower belt 12, an upper belt 16 and a swivel belt 14 connected to the upper belt 16.
  • the swivel belt 14 forms together with the upper belt 16 a continuous belt driven by a common drive.
  • the swivel belt 14 is designed as a pivotable component of the upper belt 16 which projects from the upper belt 16 in the opposite direction of transport.
  • the connection between the rear end 13 of the swivel belt 14 and the upper belt 16 forms a common deflection roller between the two belts.
  • a package 18 to be closed lies on the lower belt 12 and is moved forward by this in the transport direction, which is indicated by the arrow 34.
  • a stationary support 38 running parallel to the upper belt 16 is attached to the machine frame 36.
  • the upper belt 16 is guided in a vertically displaceable manner on the carrier 38 via two parallel vertical supports 48, 50.
  • the vertical beams 48, 50 are rigidly connected to a longitudinal beam 40 parallel to the upper band 16.
  • Two spring elements 22, 24, which are designed as adjustable gas pressure springs (pneumatic cylinders with throttle valve), are arranged between the longitudinal beam 40 and the fixed beam 38.
  • the front end 15 of the swivel belt 14 projects from the upper belt 16 counter to the direction of advance and is at its front end 15 via a lifting element, which is designed as a pneumatic lifting cylinder 64, at a fixed point of application 17 of the vertical support 48 arranged on the side of the swivel belt 14 held.
  • a lifting element which is designed as a pneumatic lifting cylinder 64, at a fixed point of application 17 of the vertical support 48 arranged on the side of the swivel belt 14 held.
  • a pack 18 to be closed lies on the beginning of the lower belt 12. Since the packaging 18 does not touch the projecting swivel belt 14 or the upper belt 16, the arrangement formed by the upper belt 16 and the swivel belt 14 is located in FIG a lower vertical basic position, which is predetermined by the lowest position of the vertical supports 48, 50 in the vertical guides 49, 51 or by the maximum extension length of the gas pressure springs.
  • the pneumatic lifting cylinder 64 which is designed as a double-acting lifting cylinder, is acted upon in this position in such a way that the swivel belt 14 is inclined upwards.
  • the gas pressure springs are set so that even a small upward force is sufficient to move the swivel belt 14 and the upper belt 16 from the basic position upwards.
  • the swivel belt thus rolls with its tread 19 on the packaging 18 until the swivel belt 14 lies horizontally on the top of the packaging 18 and the upper belt 16 connected to the swivel belt 14 has thus adjusted to the height of the packaging.
  • the extension length of the lifting cylinder 64 is dimensioned such that the swivel belt 14 can only pivot out into the horizontal position, but not further.
  • the belts are now put into operation again, and the packaging 18 is transported further in the direction of arrow 34 between the swivel belt 14 and the lower belt 12 or between the subsequent upper belt 16, now aligned in its vertical position, and the lower belt 12.
  • the package 18 is closed by a closing unit 30 indicated by a broken line in FIG. 1c, for which purpose the upper band 16 and the lower band 12 are stopped.
  • the closing unit 30, the individual components of which can be seen in more detail in FIG. 2, can be lowered onto the packaging 18 together with the upper belt 16.
  • the lifting cylinder 64 is switched over again, so that the swivel belt 14 is again inclined upwards and can be aligned with the next incoming package.
  • FIG. 2 Details of the structure of the packaging device according to the invention can be seen in more detail in FIG. 2.
  • This device differs from the device according to FIG. 1 only in that the upper belt 16 and the swivel belt 14 consist of two separate belts which are rotatably connected to one another are.
  • the structure of the two versions is completely identical.
  • movable connections or guides between round bars and beams are indicated by a circle or ellipse drawn around the respective bar at a distance.
  • the upper belt 16 is rigidly connected to the two vertical supports 48, 50, which are vertically displaceable in the vertical guides 49, 51 of the fixed support 38.
  • the swivel belt 14 fixed at its rear end 13 to the upper belt 16 is held at the front end 15 via the lifting cylinder 64, the lifting cylinder 64 being fixed to a mounting plate 65 which is fastened to the second vertical guide 49 below the fixed support 38.
  • a control device 66 for controlling the feed movements of the belts and the lifting cylinder 64 is indicated by the number 66.
  • the double-acting lifting cylinder 64 which is designed as a pneumatic cylinder, is controlled by the control unit 66 via a switching valve 60.
  • a sensor 58 is arranged on the lifting cylinder 64, which emits a switching signal to the control device 66 as soon as the lifting cylinder 64 has been fully extended, and thus the swivel belt 14 is aligned horizontally.
  • the longitudinal beam 40 is rigidly connected to the two rod-shaped vertical beams 48, 50.
  • the spring elements 22, 24 in the form of gas pressure springs are arranged between the longitudinal beam 40 and the fixed beam 38, as has also already been explained.
  • a bracket 52 projecting at right angles is also arranged on the fixed support 38, two at its free end parallel guide rods 54, 56 extending in the vertical direction are fixed. These guide rods 54, 56 are used for vertical guidance of the closing unit, designated overall by the number 30, which is fastened to a holder 42 on the side member 40.
  • the bracket 42 is rigidly connected to the side member 40. Starting from the holder 42, a vertical support 44 extends downward, to the lower end of which a hold-down 32 protruding horizontally in the direction of advance is fastened.
  • the bracket 42 is guided on the two guide rods 54, 56 of the boom 52 in the vertical direction.
  • a guide plate 46 which is also guided on the two guide rods 54, 56, is fixed at right angles to the vertical support 44 which extends downward from the holder 42.
  • An additional gas pressure spring 23 is arranged between this guide plate 46 and the arm 52.
  • a closer 26 is also attached, which has a pneumatically movable rod with a horizontal closing plate 27 at the lower end.
  • an angle support 53 is also attached, to which a side slide 28 is attached, the slide plate 29 of which can be moved pneumatically in the direction of the side wall of a package.
  • the closing unit 30, which consists of the slide 28, the closer 26 and the hold-down 32, can thus be moved together with the upper belt 16 in the vertical direction.
  • the swivel belt 14, the upper belt 16 and the lower belt 12 are stopped via the control unit 66, and the lifting cylinder 64 is extended via the switching valve 60, so that the swivel belt is lowered with its front end 15 downward until the swivel belt 14 with its tread 19 on the rear edge of the packaging 18 seen in the transport direction comes to rest and now, when the lifting cylinder 64 is extended further, the rear end 13 of the swivel belt 14 together with the upper belt 16 are raised until the swivel belt 14 with its tread 19 lies horizontally on the Has created top of the package 18.
  • the swivel belt 14 and the subsequent upper belt 16 automatically adjust themselves to a height h of the packaging.
  • the belts are now put into operation again via the control unit 66, and the packaging 18 is transported between the upper belt 16 and the lower belt 12 in the direction of the arrow 34 until it reaches the position on the closing unit 30 indicated by the number 18 '.
  • the packaging 18 is bag-shaped in the example shown and has a laterally projecting closing part 20 in the form of a flap which has to be folded upwards to close and must be pressed onto the top of the packaging.
  • a guide track 62 with an oblique guide surface is arranged in the longitudinal direction of the lower belt 12, on which the closing part 20 rests and during the feed movement into the position at the Closing unit is erected upwards by the rising guideway 62.
  • the closing part 20 In the position of the package 18 'shown on the closing unit 30, the closing part 20 has been moved upwards and has been folded over onto the top of the package by the slide 28 which moves towards the side.
  • the top of the package is additionally held down by the hold-down 32 in the position shown.
  • the closing part is finally pressed onto the top of the packaging by moving the closer 26 over its closing plate 27 with a front self-adhesive layer and thus glued.
  • the closure can also be done by sticking on a self-adhesive label.
  • the packaging is finally moved out of the closed position, the hold-down 32 being gradually pulled out from under the closing part 20 'which is already glued to the front end.
  • the swivel belt 14 is again inclined upwards via the lifting cylinder 64. The distance between the swivel belt 14 is then subsequently established and the upper belt 16 again automatically to the level of a subsequent package 18.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Package Closures (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
EP92114559A 1991-09-19 1992-08-26 Verfahren und Vorrichtung zum Transportieren und Verschliessen von Verpackungen Withdrawn EP0532947A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4131175 1991-09-19
DE4131175A DE4131175C1 (enrdf_load_stackoverflow) 1991-09-19 1991-09-19

Publications (1)

Publication Number Publication Date
EP0532947A1 true EP0532947A1 (de) 1993-03-24

Family

ID=6440971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92114559A Withdrawn EP0532947A1 (de) 1991-09-19 1992-08-26 Verfahren und Vorrichtung zum Transportieren und Verschliessen von Verpackungen

Country Status (2)

Country Link
EP (1) EP0532947A1 (enrdf_load_stackoverflow)
DE (1) DE4131175C1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8533995B1 (en) 2013-02-05 2013-09-17 Fawzi Q. M. A. O. A. Behbehani Automatic watering device for plants
WO2020230046A1 (en) * 2019-05-14 2020-11-19 Tentoma A/S Method for packing objects and packaging system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19522831C2 (de) * 1995-06-23 1997-10-02 Senning Christian Verpackung Vorrichtung zum Transportieren von Weichpackungen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775937A (en) * 1972-05-10 1973-12-04 Devon Tape Corp Automatic random size box sealer
DE2065523A1 (de) * 1970-07-29 1974-05-09 Optima Maschinenfabrik Dr Max Vorrichtung zum schliessen von verpackungsbeuteln
US3886713A (en) * 1973-10-16 1975-06-03 Oxford Industries Bag closing method and apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6709092A (enrdf_load_stackoverflow) * 1967-06-29 1968-12-30
IT946715B (it) * 1972-01-19 1973-05-21 Marchetti A Macchina per applicare nastri adesivi di chiusura a scatole parallelepipede di dimensioni diverse

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2065523A1 (de) * 1970-07-29 1974-05-09 Optima Maschinenfabrik Dr Max Vorrichtung zum schliessen von verpackungsbeuteln
US3775937A (en) * 1972-05-10 1973-12-04 Devon Tape Corp Automatic random size box sealer
US3886713A (en) * 1973-10-16 1975-06-03 Oxford Industries Bag closing method and apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8533995B1 (en) 2013-02-05 2013-09-17 Fawzi Q. M. A. O. A. Behbehani Automatic watering device for plants
WO2020230046A1 (en) * 2019-05-14 2020-11-19 Tentoma A/S Method for packing objects and packaging system
US11987411B2 (en) 2019-05-14 2024-05-21 Tentoma A/S Method for packing objects and packaging system

Also Published As

Publication number Publication date
DE4131175C1 (enrdf_load_stackoverflow) 1993-01-21

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