EP2819924B1 - Dispositif et procédé de réduction des forces de rappel d'enveloppes d'emballage dans une machine de remplissage - Google Patents

Dispositif et procédé de réduction des forces de rappel d'enveloppes d'emballage dans une machine de remplissage Download PDF

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Publication number
EP2819924B1
EP2819924B1 EP13715621.2A EP13715621A EP2819924B1 EP 2819924 B1 EP2819924 B1 EP 2819924B1 EP 13715621 A EP13715621 A EP 13715621A EP 2819924 B1 EP2819924 B1 EP 2819924B1
Authority
EP
European Patent Office
Prior art keywords
package
fold edges
transport
packing
package sleeve
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.)
Active
Application number
EP13715621.2A
Other languages
German (de)
English (en)
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EP2819924A1 (fr
Inventor
Klaus Baltes
André VETTERS
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.)
Elopak AS
Original Assignee
Elopak AS
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Filing date
Publication date
Application filed by Elopak AS filed Critical Elopak AS
Publication of EP2819924A1 publication Critical patent/EP2819924A1/fr
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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
    • B65B43/24—Breaking creases to facilitate setting-up cartons
    • 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
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/16—Feeding individual bags or carton blanks from piles or magazines by grippers
    • B65B43/18—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers
    • B65B43/185—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers specially adapted for carton blanks
    • 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
    • B65B43/28—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers co-operating with fixed supports
    • B65B43/285—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers co-operating with fixed supports specially adapted for boxes, cartons or carton blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/76—Opening and distending flattened articles
    • B31B50/78—Mechanically
    • B31B50/782—Mechanically by pushing the opposite ends of collapsed blanks towards each other

Definitions

  • Each flat folded packing jacket has four packing walls separated from each other by parallel outer and inner fold edges. At the outer fold edges of the flat-folded packing jacket, a sharp inner angle is enclosed in each case between the packing walls. The inner fold edges of the flat folded packing jacket are arranged between the outer fold edges. At the inner fold edges of the flat-folded packing jacket, an obtuse inner angle is enclosed in each case between the packing walls. If the packing walls have matching dimensions, the inner crease edges divide the distance between the outer crease edges on the middle.
  • the at least one conveyor line of the filling machine the flat folded packaging coats are fed from a magazine.
  • the packing shells are arranged as a stack, usually standing upright, one behind the other.
  • a removal side of the magazine pointing in the direction of the conveyor line, two of the four packing walls of the respective front packing jacket are exposed.
  • the stack is acted upon at its back in the direction of the removal side with a force, for example, a spring or a linear drive, to move the packing coats of the stack to the removal side.
  • a picking and unfolding device comprises a gripper for detecting one of the two packing walls released on the unloading side of the magazine, one guide for the other of the two released packing walls and arranged behind the guide in the direction of movement Retaining elements for receiving the outer creasing edges of the unfolded packing jacket.
  • the removal and Auftyptvörraum folds the initially flat folded packing jacket to a rectangular cross-section forming a packaging jacket.
  • the unfolded packing jacket is taken over by a transport device.
  • the packing containers produced from the packing shells are sterilized, filled and subsequently closed.
  • the preparation of the package bottom is usually carried out immediately before filling. Subsequently, the packing head is usually produced.
  • transport wheels or circulating conveyor belts with pocket-shaped receptacles for the unfolded packing shells or packing containers are used as transport means.
  • the stepwise rotating transport wheels have a plurality of radially outwardly extending, parallel recordings.
  • the recordings are usually designed as mandrels, on which the unfolded packing coats or packing containers are pushed; One then speaks of a mandrel wheel.
  • each receptacle comprises a plurality of arms or profiles that come to rest on the outside, in particular directly next to the bent edges of the unfolded packing jacket or of the packing container.
  • the receptacles form cells into which the unfolded packing shells or packing containers can be inserted; one speaks then of a cellular wheel.
  • a removal side (7) of the magazine (2) releases the two forward-facing packing walls (5a, 5b) of the respective front packing jacket (1). So that the packing shells (1) do not fall out of the magazine on the removal side (7), retention elements (8a, 8b) are arranged on the removal side (7), which extend along the outer folding edges (3a, 3b) of the front packing sheath (1). extend.
  • the respective front packing jacket (1) is not removed in the full width of the two packing walls (5a, 5b). Rather, the Packüngsmantel (1) only on one of the two shared packing walls (5a) of the packing jacket (1) on the removal side (7) of the magazine (2) is detected (see. FIG. 1 a) ).
  • a suction gripper (9) is used, which is fastened to a swivel arm (11) pivotably arranged about a vertical axis (10).
  • a swivel arm (11) pivotably arranged about a vertical axis (10).
  • the packing jacket (1) with the other of the two released packing walls (5b) is slidably guided along a curved guide surface (12) of a guide element (13).
  • the guide surface (12) causes during the movement of the packing jacket (1) along the path of movement (14) an enlargement of the acute inner angles (15a, 15b), wherein the inner angle (15a) between the package walls (5b, 6b) and the inner angle (15b) between the package walls (5a, 6a) are included.
  • a holding element (16) which is introduced in the form of a groove-shaped depression in the guide element (13).
  • the holding element (16) serves to receive the outer bending edge (3b) of the unfolded packing jacket (1).
  • the distance and the orientation of the holding elements (16, 17) takes place in such a way that the packing jacket accommodated by the holding elements (16, 17) forms a rectangle in cross-section. This orientation is necessary for transferring the completely unfolded packing jacket to the transport device downstream of the removal and unfolding device, such as, in particular, the transport wheels mentioned in the introduction.
  • the bent edges (3a, 3b, 4a, 4b) of the packing sheath (1) cause restoring forces corresponding to the unfolding of the package sheath (1) counteract.
  • the restoring forces increase with the unfolding of the initially flat folded package jacket (1) into a packing jacket forming a cross-sectionally parallelogram, in particular a rectangle.
  • the packing shells (1) with the help of the suction at the end of the curved guide surface (12) moves slightly beyond the rectangular cross-section, so that the initially acute inner angle (15a, 15b) of the packing jacket briefly is slightly more than 90 °, like this FIG. 1c) is recognizable.
  • the EP 0 978 453 A discloses a picking and unfolding device for removing a flat-folded package from a magazine and unfolding the removed package overwrap which transfers the partially cross-sectioned parallelogram package to a conveyor comprising two circulating belts for transporting the erect package over a transport path ,
  • the packing jacket is at the transfer to the Transporting device overstretched by means of a folding means short term, which is pivotally mounted on the removal and Auffaltvorraum. Overstretching reduces the restoring forces.
  • the EP 0 356 824 A1 discloses a method of unfolding a flat folded wrapper by means of a straightening device in which, via a lifting conveyor, the flat folded wrapper coats are inserted between discharge rollers and conveyed obliquely upwards.
  • a pushing device and supports the flat folded packing jacket is unfolded in the erecting device, wherein the inner angle between the packing walls at the outer bending edges are increased to almost 180 °. This leads to a reduction of the restoring forces.
  • the pusher moves away from the side of the discharge rollers, the pusher occupying a central position, so that the packing jacket relaxes and maintains a square cross-section.
  • a discharge conveyor pushes the erected to a square cross-section packing jacket on a mandrel wheel.
  • the EP 0339 116 A2 discloses a method for reducing restoring forces of package coats in a carton erector, wherein the flat folded package coats are individually withdrawn from the magazine by means of a circulating conveyor with suction cups and erected by means of guiding elements to form a cross-sectionally rectangular packing jacket.
  • the conveyor directly transfers the erected packing jacket to means for reducing the return force, comprising two revolving upper conveyor belts and two circumferential lower conveyor belts with protrusions disposed thereon.
  • the two upper conveyor belts form a tapered shaft on the inlet side, which causes the inner angle between the packing walls at the outer bending edges 180 °, while the packing jacket passes through the shaft.
  • the thus flat folded packing jacket then passes into a station for re-erecting the flat-folded packing jacket. After the re-erecting of the flat-folded packing jacket, the latter reaches a discharge conveyor, which conveys the erected packing jacket to a filling machine.
  • the DE 933 918 B discloses a device for reducing the restoring force of an erected packing jacket in a filling machine, in which the flat-folded packing jackets are removed from a magazine by means of a removal blade from below and erected into a packing jacket forming a rectangle in cross-section.
  • a relaxation ruler which performs a swinging movement around the lower folding box edge.
  • the withdrawal blade holds the erected packing jacket on a support until the packing jacket has been completely folded flat by the expansion guide. Subsequently, the packing jacket is transported by means of a conveyor.
  • the US 5 007 889 A discloses an apparatus for retrieving and unfolding a flat folded wrapper from a magazine, the unfolding of the wrapper being accomplished with a deployment arm.
  • the restoring force of the packing jacket is simultaneously reduced by temporarily increasing the internal angle ⁇ by the unfolding arm to more than 90 °.
  • the DE 559 508 C discloses a feeding apparatus of packing jackets for filling a filling machine comprising a stack of flat-folded packing jackets Manufacture of the packaging container, a back and forth and up and down movable gripper for removing a flat folded packing jacket from the stack, for erecting the flat-folded package casing and for transferring the erected packing jacket to a conveyor designed as a conveyor.
  • a conveyor designed as a conveyor.
  • the erected packing jacket in the conveyor is folded over in a flat position reversed to the previous flat position in the stack and then erected again. This is done by a driver of the conveyor moves the erected packing jacket under guides and passes in the reverse flat position under a pressure roller.
  • the subsequent Widerrichtinfo carried by a guide surface.
  • the object of the invention is to provide a method which allows a reduction of the restoring force adapted to the respective material of the package without increasing the cycle time for the removal and unfolding of the flat-folded package jacket and which permitting smooth transfer of the erected packing jacket to the transport device. Furthermore, a filling machine for carrying out the method is to be proposed.
  • the reduction of the restoring force takes place with the aid of a device arranged on the transport device and independent of the removal and unfolding device for reducing the restoring force.
  • the invention uses free time window on the transport path, the removal device and Auffaltvorraum downstream transport device for the reduction of the restoring force. This makes it possible to carry out an adapted overstretching at shorter cycle times for the unfolding and removal process.
  • the shortened cycle times allow a higher operating speed of the entire filling machine.
  • the free time window in the stepwise driven, downstream transport facilities arise due to unused Standstorpositioneri and / or movement phases of the packing jacket along the transport path.
  • the at least one processing step, in particular the formation of the package bottom, is carried out during a standstill interval at a processing station along the transport path. At standstill positions of Packunsmantels, for example, between a transfer position of the transport device and the processing station, the standstill interval has not been used. Also, the movement phase between the transfer position and the processing station has not been used to act on the packing jacket.
  • a filling machine for carrying out the method according to the invention is characterized by a device arranged on the transport device, independent of the picking and unfolding device for reducing the restoring force in the erected packing jacket by temporarily increasing the internal angle between the packing walls at the outer crease edges to more than 90 ° ,
  • the removal and Auffaltvorides folds the initially flat folded packing jacket to a cross-sectional parallelogram forming upright packing jacket.
  • the Packunsgmantel takes when unfolded to a erect packing jacket a maximum of a rectangular cross-section.
  • the removal and Auffaltvorides causes in particular no reduction of the restoring force by the Packing jacket folded over the rectangular cross-section, thereby increasing the internal angle between the packing walls at the outer crease edges to more than 90 °.
  • the downstream transport means is operated stepwise to allow the erected packing jacket to pass smoothly to the transport means and to perform the at least one processing step on the erected packing casing, in particular the formation of the bottom of the packing container.
  • the downtimes caused by the stepwise operation of the transport device are preferably not only used to carry out the at least one work step, but also to reduce the restoring force.
  • the restoring force can also be reduced during a movement of the erected packing jacket along the transport path.
  • a preferred method for reducing the restoring force during standstill of the stepwise operated transport device is to move the outer bending edges towards each other in the direction of the cross-sectional diagonal between the outer bending edges of the erected packing jacket, so that the inner angle between the packing walls on the outer Bending edges increased to more than 90 °.
  • the required overstretching can be adjusted to the height of the material-dependent restoring forces.
  • a method for reducing the restoring force, in particular during a movement of the erected packing jacket along the transport path of a step-by-step operated transport device is characterized in that the internal angle between the packing walls to the outer crease edges is increased to more than 90 °, in which two opposing packing walls are pivoted parallel to each other about one of the two outer creases. Due to the size of the pivot angle of this parallel pivoting movement, the amount of reduction of the restoring force is adjusted.
  • the internal angle between the packing walls at the outer folding edges is preferably increased to an angle in the range between 120 ° and 180 °.
  • Such enlargement was in the interest of reasonable cycle times for the removal and Auffaltvorgang at modern filling machines no longer justifiable.
  • the removal and Auffaltvorraum downstream transport device is designed as a transport wheel, which has a plurality of radially outwardly extending receptacles for each pack jacket, each receptacle has a plurality of profiles on and / or in addition to the bending edges of the packing jacket can be brought to the plant and the transport device has a drive for rotating the transport wheel about an axis of rotation.
  • Common transport wheels in filling machines have four shots arranged uniformly over the circumference of the axis of rotation.
  • the drive of the transport wheel is designed as a stepper drive, with which the receptacles for the packing coats after turning the transport wheel by one step angle, in particular of 90 °, can be brought into a standstill position.
  • the transport wheel After passing the erected packing jacket in a transfer position to the downstream transport wheel, the transport wheel continues to rotate by the step angle, so that a further recording of the transport wheel rotates in a position aligned with the holding elements of the removal and Auffaltvorraum. In this further recording, a further packing jacket is inserted immediately after the rotational movement.
  • the previously loaded with a packing jacket recording comes in a, in particular horizontal, standstill position.
  • Either the device for reducing the restoring force during the standstill of the transport wheel is activated or during the rotation of the transport wheel by the aforementioned step angle.
  • a device for reducing the restoring force during the stoppage of the transport wheel can be particularly favorably integrated into the filling machine, if each receptacle has at least a first profile, which can be brought to bear on or next to one of the two outer creases of the packing jacket and the recording at least two second Has profiles that can be brought to bear next to the other of the two outer creases of the packing jacket.
  • the restoring force of the erected in cross-section rectangle packing jacket causes the packing jacket is securely held in the at least three profiles having recording. If the receptacle has only a first profile, this is preferably designed as an angle profile, which can be brought to bear against the bending edge.
  • the two second profiles, which can be brought to bear against the opposite outer bending edge, are preferably designed as rods.
  • a thrust element which can be temporarily brought into contact with at least one of the two outer crease edges is preferably provided as a device for reducing the restoring force during standstill of the transport wheel, which is set up in the direction of one between the two outer creases of the erected packing jacket extending cross-sectional diagonal is movable.
  • the distance of the second profiles from the outer buckling edge is preferably determined so that the pushing element is movable through the rods in the direction of the outer buckling edge.
  • the stationary mounted pushing element compresses the packing casing along the cross-sectional diagonal, whereby the inner angle between the packing walls at the outer folding edges is increased to more than 90 °.
  • the travel of the thrust element in the direction of the cross-sectional diagonal is determined until the restoring force is broken.
  • the packing jacket is supported on the first profile of the receptacle. After retraction of the pusher element, the packing jacket again straightens until it again comes to rest on the two second profiles.
  • the receptacle has a first and a second, each configured as an angle profile profile, which can be brought to the outer fold edges to the plant.
  • One of the two angle sections has a section designed as a pushing element which is temporarily movable in the direction of the cross-sectional diagonal running between the outer bending edges of the erected packing jacket.
  • each receptacle has two first mounts, the two first mounts receiving one of the two outer creases and one of the two inner creases of the package mantle, each receptacle receiving two second mounts in which the two second holders receive the other of the two outer crease edges and the other of the two inner crease edges of the packing jacket, that the two first holders are fixedly arranged on the transport wheel and the second holders are arranged so pivotably on the transport wheel, so that the pivoting movement of the two second holders two opposing packing walls are parallel to each other about one of the two outer fold edges pivotally.
  • the internal angle between the packing walls is temporarily increased at the outer crease edges to more than 90 °, thereby breaking the restoring force.
  • Another advantage of a filling machine with pivotally mounted brackets is that the transfer of the erected packing jacket to the downstream transport device can already take place when the flat folded packing jacket is erected in cross section to form a parallelogram whose cross section only about 1/3 of the rectangular cross section of the fully erected packing jacket.
  • the thus only partially erected packing jacket is pushed into the receptacle of the transport wheel, which is due to the pivotally mounted second brackets able to safely receive the partially erected packing jacket.
  • the complete erection of the flat folded package jacket can be partially displaced into the downstream transport device.
  • the two second holders of each receptacle are preferably mechanically connected to one another and form the coupling of a coupling gear which is arranged on the transport wheel.
  • the two first brackets can be connected to a single profile.
  • the pivotal movement of the two second brackets initially causes the complete erection of the packing jacket until it has a rectangular or square cross-section. In the course of the further pivoting movement, the restoring force is reduced.
  • the filling machine has a device for pivoting the two second holders and thus also for reducing the restoring force.
  • the apparatus comprises a cylinder cam gear having a cylindrical fixed cam body disposed coaxially with the axis of rotation of the sprocket, a cylindrical cam disposed in the cam body, a scanning element guided in the cylinder cam, and a linkage on one side with the sensing element and on the other side is connected to the second brackets.
  • the cylinder curve in the cam body is designed such that first the second pair of holders erects the packing jacket into a rectangle or square.
  • the further course of the cylinder curve causes a continuation of the pivoting movement, whereby the inner angle between the packing walls at the outer crease edges is increased to more than 90 °.
  • Such a configuration of the cylinder curve causes the device to reduce the restoring force during the rotation of the transport wheel is active.
  • the device described above for reducing the restoring force during standstill of the stepwise operable transport wheel should be activated, at least a portion of the cylinder curve in an in Direction of the axis of rotation of the transport wheel slidable segment of the cam arranged.
  • the sensing element reaches this portion of the cylinder cam at the time the package jacket is erected into a square.
  • the portion of the cylinder curve for example, with a mechanically operated plunger, moved from a starting position in the direction of the axis of rotation of the transport wheel, whereby the pivotal movement of the second brackets is continued despite stoppage of the transport wheel.
  • the slidably guided segment of the cam is retracted to its initial position, so that the portion of the cylinder cam in the slidable segment is aligned with the rest of the cylindrical cam arranged in the stationary cam.
  • the second brackets are no longer moved over the linkage during the following rotation of the transport wheel by a step angle until they are pivoted during rotation by the last step angle before reaching the transfer position of the transport wheel so that the only partially erected packing jacket can be inserted into the receptacle.
  • partially filled filling machines according to the invention for filling liquid food in packing containers comprise matching components, such as partially in FIG. 1 Filling machine according to the prior art shown, matching reference numerals are used.
  • the magazine (2) for receiving the flat-folded packing shells (1) for producing the packing containers is arranged.
  • the magazine (2) comprises holding profiles (21 a, b), which come to the outer fold edges (3 a, b) of the packaging shells (1) to the plant.
  • the removal side (7) of the magazine (2) releases the two front packing walls (5 a, b) of the total of four packing walls (5 a, b, 6 a, b) of the respective front packing jacket (1).
  • the on the conveyor line of the filling machine the magazine (2) downstream removal and Auffaltvoriques comprises a suction pad (9) with three pneumatic suckers for detecting the release on the side (7) released packing wall (5 a).
  • the suction gripper (9) is arranged along a straight-line movement path (23) perpendicular to the released packing wall (5 a) slidably.
  • the removal and Auffaltvorraum also has a flat guide surface (24) for the outer bending edge (3 b) the other of the two released packing walls (5 b) of the packing jacket (1).
  • the planar guide surface (24) guides the outer bending edge (3 b) in a sliding manner.
  • the holding element (25) for receiving the diametrically opposite outer bending edge (3 b) is between a in the FIGS. 4 a - c shown starting position and an in FIG. 4d shown end position by means of a linear drive back and forth.
  • Both the stationary holding element (17) and the movable holding element (25) are designed as an angle profile. The two angularly arranged surfaces of the angle profiles enter the in FIG. 4d shown end position on the package walls (5 a, 6 a and 5 b, 6 b) to the plant.
  • the distance between the flat guide surface (24) and the movement path (23) of the suction gripper (9) from the removal side (7) of the magazine (2) in the direction of the holding elements (17, 25) decreases continuously.
  • the suction gripper (9) is provided with an actuator (22) vertically movable up and down.
  • the transport device (26) comprises a about a rotational axis (28 a) rotatable transport wheel (29) with four radially outwardly extending receptacles, each having a first profile (30) and two second profiles (31).
  • the first profile (30) is designed as an angle guide and can be brought to the outer bending edge (3 b) to the plant.
  • the two second profiles (31) are designed as rod profiles and can be brought directly to the plant next to the outer bending edge (3 a).
  • the first and second profiles (30, 31) form cells into which the unfolded packing shells with a rectangular cross-section can be inserted.
  • the axis of rotation (28 a) of the transport wheel (29) lies in a vertical plane transverse to the conveying line (23) of the filling machine.
  • the transport wheel (29) is rotated by a drive, not shown, step by step by 90 ° about the axis of rotation (28a).
  • the unfolded packing shells (1) are transferred to further, not shown in the figures, transport facilities to perform on the packing coats further processing steps.
  • a device (32) for reducing the restoring force is arranged at the transport device.
  • the device (32) for reducing the restoring force comprises a thrust element (33), which is connected via an arm (34) with a movement drive (35).
  • the designed as an angle profile thrust element (33) extends parallel to the outer bending edge (3 a), at which it is temporarily brought into abutment, the buckling edge (3 a) formed on the between the legs of the angle profile on the inside edge (36) is applied.
  • the moving drive (35) is fixed to the frame (20) of the filling machine.
  • the in the FIGS. 6 and 7 partially shown filling machine differs from that in the FIGS. 2 and 3 shown filling machine in that a not yet completely raised to a rectangle or square packing jacket (1) is passed to the vertically downwardly receiving the transport wheel (29). Furthermore, the device (32) for reducing the restoring force is constructed differently. As far as the in the FIGS. 6 and 7 shown filling machine has matching components such as partially in FIGS. 2 and 3 illustrated Filling machine, matching reference numerals are used. In addition, reference is made to the explanations there for the avoidance of repetitions.
  • the transport wheel (29) likewise has four receptacles, each receptacle having a first, radially outwardly extending profile (40) which is arranged stationarily on the transport wheel (29).
  • the first profile (40) is angled at the side edges.
  • the angled profile areas form first holders (41) for receiving the outer buckling edge (3 a) and the inner bending edge (4 a) of the packing jacket (1).
  • a second profile (42) also extends radially outward and is also angled in the edge regions.
  • the angled regions form second holders (43) for receiving the other outer bending edge (3 b) and the other inner bending edge (4 b) of the packing jacket (1).
  • the second profile (42) is designed as a coupling of a linkage with four joints, which converts a straight-line movement of a linkage (44) in a swinging movement of the second profile (42).
  • the coupling mechanism has two rockers (45), which are articulated at one end to in extension of the second profile (42) arranged arms (46) and articulated at the other end to the axle body (28 b) of the transport wheel (29) ,
  • the rockers (45) move parallel to the side walls (6 a, 5 b) of the packing jacket (1).
  • the linkage (44) is made in two parts.
  • the linkage is divided into an angled portion (44 a) and a straight-line portion (44 b).
  • the angled part (44 a) is hinged to the underside of the second profile (42).
  • At the opposite end of the angled portion (44 a) is pivotally connected to the straight part (44 b).
  • the rectilinear portion (44 b) is connected at the gelenkfernen end with a sensing element (47) in the form of a cam roller.
  • the rectilinear section (44 b) is rotatably connected to the Achsêt (28 b) connected guide element (48) forcibly guided in the direction of the axis of rotation (28 a) of the transport wheel (29).
  • the sensing element (47) is part of a cylinder cam gear (49).
  • the cylinder cam gear (49) has coaxially with the axis of rotation (28 a) of the transport wheel (29) a fixedly arranged on the frame (20) cam body (50).
  • a cylinder cam (51) in the form of a groove is inserted, which guides the sensing element (47).
  • a portion (52) of the cylinder cam (51) is part of a in the direction of the axis of rotation (28 a) displaceable segment (53) of the cam body (50).
  • the segment (53) is in a gate (54) of the cam (50) by means of an actuating member (55) reciprocable. The movement takes place with the aid of a drive not shown for clarity.
  • FIG. 8 a shows a plan view of the vertically downwardly facing receiving the transport wheel (29).
  • the packing jacket (1) which is erected only partially to form a parallelogram, is inserted into the receptacle.
  • the packing jacket (1) is erected into a rhombus, which has about 1/3 of the square cross section of the fully erected packing jacket (1).
  • the Tränsportrad (29) is further rotated clockwise (56) by a step angle of 90 °, so that the recording shows horizontally to the left (see. FIG. 6 ).
  • the sensing element (47) is located in the portion (52) of the slidably disposed segment (53) of the cam body (50).
  • the segment (53) is now in the direction of the axis of rotation (28 a) inwardly in the direction of the transport wheel (29) displaced, whereby the second profile (42) in the FIG. 8 a) opposite position after FIG. 8 c) swings.
  • the inner angle (39) is increased to a value of more than 90 °, in the illustrated embodiment of about 130 °.
  • the actuator (55) is retracted until the portion (52) is again flush with the rest of the cylinder cam (51) as shown in FIG. 8 d) is recognizable.
  • the main difference between the filling machine after the FIGS. 9 a) - f) as well as the filling machine after the FIGS. 6 and 7 is that reducing the restoring force exclusively during movement of the erected packing jacket (1) along the transport path of the transport wheel (29), but not during standstill of the transport wheel, as in the embodiments of the filling after the Figures 2 or 6 and 7.
  • the recordings of the transport wheel are consistent as in the embodiment according to FIGS. 6 and 7 designed, so that in this respect reference is made to the statements there.
  • the device (32) for reducing the restoring force differs from that for the filling machine after the FIGS. 6 and 7 in that no portion (52) of the cylinder cam (51) is arranged in a displaceable segment (53) of the cam body (50).
  • a displaceable segment (53) is dispensable, since the movement of the second profile (42) solely by the movement of the sensing element (47) in the continuous cylinder curve (51) during the rotation of the transport wheel (29) is caused.
  • the transport wheel (29) is further rotated by a further step angle of 90 °, wherein the sensing element (47) passes through an outwardly guided portion (58) of the cylinder cam (51).
  • the second profile (42) by means of the linkage (44) in the in FIGS. 10c) .
  • the processed packing jacket (1) can be transferred to a downstream transport device.
  • the rotation between the position with vertically upwardly facing recording in the position with horizontally facing to the right recording takes place without further pivoting of the second profile.
  • FIG. 9 is used in particular when the cardboard boxes processed in the filling machine have a largely constant quality and the magnitude of the oscillation amplitude of the second profile (42) does not have to be changed in order to reduce the restoring force.
  • the device after FIGS. 6, 7 it is used in particular in such filling machines in which packaging coats (1) are processed with different board quality.
  • the stroke of the slidably guided segment (53) By adjusting the stroke of the slidably guided segment (53), the amplitude of the oscillatory movement of the second profile (42) can be adapted to the nature of the carton.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Making Paper Articles (AREA)

Claims (12)

  1. Procédé destiné à réduire des forces de rappel d'enveloppes d'emballage (1) dans une machine de remplissage, chaque enveloppe d'emballage (1) pliée à plat comportant quatre parois d'emballage (5a, b, 6a, b) séparées les unes des autres par des arêtes de pliage extérieures (3a, b) et intérieures (4a, b) s'étendant en parallèle et sur les arêtes de pliage extérieures (3a, b), un angle intérieur (39) aigu étant chaque fois inclus entre les parois d'emballage (5a, b, 6a, b), comportant les étapes de procédé,
    - introduction d'enveloppes d'emballage (1) pliées à plat dans un magasin (2) de la machine de remplissage,
    - retrait chaque fois d'une enveloppe d'emballage (1) pliée à plat du magasin (2) et dépliage avec un dispositif de retrait et de dépliage de l'enveloppe d'emballage (1) pliée à plat en une enveloppe d'emballage (1) debout, formant un parallélogramme en section transversale et
    - transfert de l'enveloppe d'emballage (1) debout, à l'aide d'un dispositif de transfert à un système de transport (26) placé en aval du dispositif de retrait et de dépliage, pour le transport de l'enveloppe d'emballage (1) debout le long d'un trajet de transport, au moins une étape d'usinage étant réalisée sur l'enveloppe d'emballage debout, pendant que l'enveloppe d'emballage (1) debout se trouve sur le trajet de transport du système de transport (26),
    caractérisé par
    - le transfert de l'enveloppe d'emballage (1) debout à un système de transport (26) qui comporte une roue de transport (29) avec plusieurs logements s'étendant vers l'extérieur en direction radiale pour chaque fois une enveloppe d'emballage (1), chaque logement comportant plusieurs profilés (30, 31, 40, 42) qui peuvent être amenés en appui sur et/ou à côté des arêtes de pliage (3a, b) de l'enveloppe d'emballage (1) et le système de transport (26) comportant un entraînement pour la rotation de la roue de transport (29) autour d'un axe de rotation,
    - réduction de la force de rappel par agrandissement momentané de l'angle intérieur (39) entre les parois d'emballage (5a, b, 6a, b) sur les arêtes de pliage (3a, b) extérieures à plus de 90°, pendant que l'enveloppe d'emballage (1) debout se trouve sur le trajet de transport du système de transport (26),
    - le système de transport (26) étant actionné progressivement et la réduction de la force de rappel s'effectuant pendant un arrêt de l'enveloppe d'emballage (1) debout sur le trajet de transport ou pendant un déplacement de l'enveloppe d'emballage (1) debout, le long du trajet de transport.
  2. Procédé selon la revendication 1, caractérisé en ce que les angles intérieurs (39) entre les parois d'emballage (5a, b, 6a, b) sont agrandies à plus de 90° sur les arêtes de pliage extérieures, en ce que les arêtes de pliage extérieures (3a, b) sont déplacées l'une vers l'autre en direction d'une diagonale de section transversale entre les arêtes de pliage extérieures (3a, b) de l'enveloppe d'emballage (1) debout.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'entre les arêtes de pliage extérieures, les angles intérieurs (39) entre les parois d'emballage (5a, b, 6a, b) sont agrandis à plus de 90° en ce que deux parois d'emballage (6a, 5b) opposées sont pivotées à la parallèle l'une vers l'autre autour de l'une des deux arêtes de pliage (3a, b) extérieures.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que sur les arêtes de pliage extérieures, les angles intérieurs (39) entre les parois d'emballage (5a, b, 6a, b) sont agrandis à un angle de l'ordre compris entre 120° à 180°.
  5. Machine de remplissage destinée à mettre des produits dans des contenants de remplissage, comprenant
    - un magasin (2) destiné à recevoir des enveloppes d'emballage (1) pliées à plat, pour la création des contenants d'emballage, chaque enveloppe d'emballage (1) pliée à plat comportant quatre parois d'emballage (5a, b, 6a, b) séparées les unes des autres par des arêtes de pliage extérieures (3a, b) et intérieures (4a, b), s'étendant à la parallèle et sur les arêtes de pliage (3a, b) extérieures, un angle intérieur (39) aigu étant chaque fois inclus entre les parois d'emballage (5a, b, 6a, b),
    - un dispositif de retrait et de dépliage destiné à retirer chaque fois une enveloppe d'emballage (1) pliée à plat du magasin (2) et à déplier l'enveloppe d'emballage (1) pliée à plat en une enveloppe d'emballage (1) debout formant un parallélogramme dans la section transversale,
    - un dispositif de transfert destiné à transférer l'enveloppe d'emballage debout à un système de transport (26) monté en aval, destiné à transporter l'enveloppe d'emballage (1) debout le long d'un trajet de transport, caractérisé par
    - un dispositif placé sur le système de transport (26), destiné à réduire la force de rappel (32) de l'enveloppe d'emballage (1) debout par agrandissement momentané à plus de 90° de l'angle intérieur (39) entre les parois d'emballage (5a, b, 6a, b) sur les arêtes de pliage (3a, b) extérieures,
    - le système de transport (26) comportant une roue de transport (29) avec plusieurs logements s'étendant vers l'extérieur en direction radiale pour chaque fois une enveloppe d'emballage (1),
    - chaque logement comportant plusieurs profilés (30, 31, 40, 42) qui peuvent être amenés en appui sur et/ou à côté des arêtes de pliage (3a, b) de l'enveloppe d'emballage (1) et
    - le système de transport (26) comportant un entraînement pour la rotation de la roue de transport (29) autour d'un axe de rotation.
  6. Machine de remplissage selon la revendication 5, caractérisée en ce que l'entraînement est conçu en tant qu'entraînement pas à pas avec lequel, après la rotation de la roue de transport (29), les logements pour l'enveloppe d'emballage (1) peuvent être amenés autour d'un angle de pas dans une position d'arrêt et le dispositif destiné à réduire la force de rappel (32) est activable pendant l'arrêt de la roue de transport.
  7. Machine de remplissage selon la revendication 5, caractérisée en ce que l'entraînement est un entraînement pas à pas avec lequel, après la rotation de la roue de transport (29), les logements pour les enveloppes d'emballage (1) peuvent être amenés dans une position d'arrêt, autour d'un angle de pas et le dispositif destiné à réduire la force de rappel (32) est activable pendant la rotation de la roue de transport (29).
  8. Machine de remplissage selon la revendication 6, caractérisée en ce que
    - le logement comporte au moins un premier profilé (30) qui peut être amené en appui sur l'une des deux arêtes de pliage (3b) extérieures de l'enveloppe d'emballage (1) et
    - le logement comporte au moins deux deuxièmes profilés (31) qui peuvent être amenés en appui à côté des autres des deux arêtes de pliage (3a) extérieures de l'enveloppe d'emballage (1).
  9. Machine de remplissage selon la revendication 6 ou 7, caractérisée en ce que
    - le logement comporte deux premières attaches (41) qui reçoivent l'une des deux arêtes de pliage (3a) extérieures et l'une des deux arêtes de pliage (4a) intérieures de l'enveloppe d'emballage (1),
    - le logement comporte deux deuxième attaches (43) qui reçoivent l'autre des deux arêtes de pliage (3b) extérieures et l'autre des deux arêtes de pliage (4b) intérieures de l'enveloppe d'emballage (1),
    - en ce que deux premières attaches (41) sont placées de manière stationnaire sur la roue de transport (29) et
    - les deuxièmes attaches (43) sont placées en étant mobiles en pivotement sur la route de transport (29), de sorte que par le mouvement de pivotement (29) des deuxièmes attaches, deux parois d'emballage (6a, 5b) mutuellement opposées peuvent pivoter l'une vers l'autre, chaque fois autour de l'une des deux arêtes de pliage (3a, b) extérieures.
  10. Machine de remplissage selon la revendication 6 ou 8, caractérisée en ce que le dispositif destiné à réduire la force de rappel (32) comporte un élément de poussée (33) s'engageant momentanément sur au moins l'une des deux arêtes de pliage (3a, b) extérieures qui est mobile en direction de la diagonale de section transversale s'étendant entre les arêtes de pliage (3a, b) extérieures de l'enveloppe d'emballage (1) debout.
  11. Machine d'emballage selon la revendication 9, caractérisée en ce que le dispositif destiné à réduire la force de rappel (32) comporte
    - une commande à came cylindrique (49), avec un corps de came (50) cylindrique stationnaire, qui est placé de manière coaxiale à l'axe de rotation (28a) de la roue de transport (29),
    - une came cylindrique (51) placée dans le corps de came (50),
    - un élément de balayage (47) guidé dans la came cylindrique (51) et
    - une tringlerie (44) qui sur un côté est relié avec l'élément de balayage (47) et sur l'autre côté est relié avec les deuxièmes attaches (43) pivotantes.
  12. Dispositif selon la revendication 6 et 11, caractérisé en ce qu'au moins un tronçon (52) de la came cylindrique (51) est placé dans un segment (53) du corps de came (50) déplaçable en direction de l'axe de rotation (28a).
EP13715621.2A 2012-03-30 2013-03-15 Dispositif et procédé de réduction des forces de rappel d'enveloppes d'emballage dans une machine de remplissage Active EP2819924B1 (fr)

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DE102012102812A DE102012102812A1 (de) 2012-03-30 2012-03-30 Vorrichtung und Verfahren zum Reduzieren von Rückstellkräften von Packungsmänteln in einer Füllmaschine
PCT/EP2013/055477 WO2013143892A1 (fr) 2012-03-30 2013-03-15 Dispositif et procédé de réduction des forces de rappel d'enveloppes d'emballage dans une machine de remplissage

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EP (1) EP2819924B1 (fr)
CN (1) CN104245516B (fr)
BR (1) BR112014024201B1 (fr)
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DE102016110008A1 (de) * 2016-04-04 2017-10-05 Sig Technology Ag Vorrichtung zum einseitigen Verschließen von Packungsmänteln für die Herstellung von Verbundpackungen
DE102016209237A1 (de) 2016-05-27 2017-11-30 Sig Technology Ag Behältervorläufer mit Aufformkoeffizienten, insbesondere für einen einzelnen formstabilen Nahrungsmittelbehälter
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US10011379B2 (en) 2018-07-03
US20150068163A1 (en) 2015-03-12
BR112014024201B1 (pt) 2021-01-05
DE102012102812A1 (de) 2013-10-02
WO2013143892A1 (fr) 2013-10-03
RU2014143644A (ru) 2016-05-27
CN104245516B (zh) 2016-09-07
RU2595011C2 (ru) 2016-08-20
EP2819924A1 (fr) 2015-01-07
CN104245516A (zh) 2014-12-24

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