EP3632805B1 - Dispositif et procédé d'emballage sous la forme d'un empilement de produits de petite taille - Google Patents

Dispositif et procédé d'emballage sous la forme d'un empilement de produits de petite taille Download PDF

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Publication number
EP3632805B1
EP3632805B1 EP19208804.5A EP19208804A EP3632805B1 EP 3632805 B1 EP3632805 B1 EP 3632805B1 EP 19208804 A EP19208804 A EP 19208804A EP 3632805 B1 EP3632805 B1 EP 3632805B1
Authority
EP
European Patent Office
Prior art keywords
product
packaging
gripper
product group
products
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
EP19208804.5A
Other languages
German (de)
English (en)
Other versions
EP3632805A1 (fr
Inventor
Stefan Berger
Thomas Frömmel
Christoph Heubaum
Daniel Piehler
Steffen John
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.)
Theegarten Pactec GmbH and Co KG
Original Assignee
Theegarten Pactec 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.)
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Publication date
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Publication of EP3632805A1 publication Critical patent/EP3632805A1/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
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/005—Packaging other articles presenting special problems packaging of confectionery
    • 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
    • B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
    • B65B35/30—Arranging and feeding articles in groups
    • B65B35/44—Arranging and feeding articles in groups by endless belts or chains
    • 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
    • B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
    • B65B35/30—Arranging and feeding articles in groups
    • B65B35/46—Arranging and feeding articles in groups by rotary 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
    • B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
    • B65B35/56—Orientating, i.e. changing the attitude of, articles, e.g. of non-uniform cross-section
    • 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
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
    • B65B9/067—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it the web advancing continuously

Definitions

  • the present invention relates to an apparatus and a method for packaging small-sized products, in particular confectionery products, which are formed into stack-shaped product groups.
  • small-sized products in particular confectionery products
  • confectionery products which are formed into stack-shaped product groups.
  • it is a great challenge to assemble and pack small-sized products into stack-shaped product groups without fear of damaging the confectionery.
  • the completion of the packaging turns out to be extremely difficult.
  • Devices and methods for packaging product groups are from the CH 390 131 A , US 4352265 A , WO 2014/012913 A1 known. From the JP 2008 137716 A a device for packaging confectionery is known. Furthermore, from the WO 01/08977 A2 and WO 02/22445 A1 Known hose packaging devices with refining units.
  • a device for packaging small-sized products that are formed into stack-shaped product groups, in particular confectionery products, with a film-shaped packaging material comprises a gripper device with several grippers, each of which has holding jaws for holding the product group at least partially enveloped by the film-shaped packaging material and which are arranged in front of and behind the holding jaws Has gathering units for producing a clamping closure and funnel-shaped ends of the packaging.
  • the gripper device provides the grippers with a gripper path which runs at least over a predetermined length that is greater than that of a product group, parallel to the conveying direction predetermined by a conveying device feeding the product group to the gripper device.
  • Usual gripper devices are designed as packing heads and rotate about an axis.
  • the gripper device is able to follow the path given by the conveyor at least a certain distance (for example at least twice the Product length or 1.5 times the length of the product group or until all packaging is completed). This opens up the possibility of handing over the packaging material in web form without dividing it into corresponding product sections beforehand. The subsequent dividing process can then be carried out, for example, on the gripper device, which generally grants better access than the conveyor.
  • the gripper device with the grippers can preferably be brought in from above, while the conveyor continues to provide support from below until the grippers take over. Accordingly, the grippers move upwards again after the product or product group has been dispensed.
  • the gripper path is preferably straight between the takeover of the products or the product groups and the delivery.
  • the grippers have gathering units in front of and behind the holding jaws, which gather the open ends of the packaging tube in order to close them and form a clamp closure and funnel-shaped or fan-shaped closure ends. This is a very quick and easy way to create a visually appealing closure.
  • the packaging material can be made up in such a way that sealing also takes place in the area of the "shirring knot", for example with a cold seal adhesive or by means of heated shirring pairs. In connection, for example, with an appropriately sealed longitudinal fin, an elegant primary packaging is created. No further repackaging is necessary and the packaged product group can be put on the sales channel.
  • a gripper also opens up the possibility of accessing various areas of the scope of the product group and of carrying out further packaging measures.
  • the gripper's holding jaws rest against a product group at the side with the packaging material in between and take over the conveyance of the product group from the conveyor.
  • the grippers offer the possibility of further process steps on the packaging material at the bottom of the product group.
  • the product group usually rests with its underside, which is why access there is difficult.
  • the grippers position the packaging material over a large area of the scope of the product group, but enable said access.
  • the length L can already be shortened and the products of a product group can be transferred from a product arrangement in a row to a fanned, at least partially overlapping product arrangement.
  • This diversified product arrangement facilitates the subsequent positional alignment and prevents the products from becoming blocked or jammed. Furthermore, this also ensures that unfavorable product shapes (for example cuboid shape, etc.) can also be used for an erecting positional alignment to be carried out.
  • a lens shape is less of a problem, but here too the fanned arrangement of the product is beneficial because it makes the process flow less prone to disruption.
  • the conveyor can have receiving pockets for one product group in each case, the effective receiving length of the receiving pockets for erecting the products or the product group being shortened.
  • the receiving pocket can for example be provided with a front and / or rear movable wall. However, elements that engage in the area of the receiving pocket and erect the products are also possible.
  • a rotatable separating plate is used for separating the products, which has recesses arranged in groups for one product group each, the products reaching into the recesses from above and being delivered downwards from the recesses to the conveyor at a transfer station .
  • the product can be fed in as bulk material.
  • Turning the separating plate automatically leads to the recesses being filled by the products arranged in bulk on the turntable.
  • the loading can be done by means of a vibration feed.
  • the recesses are arranged in such a way that a product group with products arranged one behind the other is inevitably formed. As a rule, the products slide along a sliding surface because the recesses are preferably open at the bottom.
  • this sliding surface can then be interrupted in the transfer area of the transfer station, so that the products fall down out of the recesses and into a receiving pocket of the conveyor.
  • the height of fall can be very low here.
  • the movement of the turntable and that of the conveyor are favorably coordinated with one another.
  • the grippers convey the product groups together with the packaging material essentially in the same conveying direction as the conveyor before. Due to the fact that the grippers essentially take over the conveyance of the product groups from the conveyor and essentially maintain the conveying direction, the packaging material does not necessarily have to be separated into individual product sections before the transfer, but can still be handled as belt material. This offers the possibility of finishing the packaging tube while several product groups have already been taken over by the gripper. This is not possible with the otherwise common rotating packing heads.
  • a longitudinal fin is formed and sealed during the manufacture of the packaging and the formation of the packaging tube.
  • the use of a sealed longitudinal fin also paves the way for the packaging to be used as primary packaging.
  • cold seal adhesives are used, the adhesive areas of which are applied to the same side of the packaging material and then pressed together in a continuous process. This can also be used to package heat-sensitive products. Depending on the product selection, heat sealing films can of course also be used.
  • Such a longitudinal fin can be generated while the product groups have already been taken over by the grippers.
  • the longitudinal fin can be attached to the product group in order to obtain a more pleasing appearance.
  • a certain pre-tension can already be generated in the packaging tube between two product groups that are each held by a gripper.
  • it is provided that, in order to cut through the packaging tube, it is pretensioned at least additionally between two product groups. There is accordingly a targeted introduction of a pretensioning that promotes severing. If a certain pre-tension is already present by simply gripping and transporting the gripper, this pre-tension is consciously increased again. For example, there are additional units on the gripper that generate this pre-tension.
  • two counter-rotating knives which can be moved along and back together parallel to the conveying direction and only swivel into the conveying path of the product groups and the packaging tube at times, are used to cut through the packaging tube.
  • the knives preferably move at the same rate as the conveying speed, so that there is no relative movement between the packaging tube and the knives in the conveying direction.
  • the knives then cut the packaging hose between two product groups, then dive down and move back against the conveying direction. This creates an oscillating movement of the knives in and against the conveying direction.
  • the gripper can transfer it to a conveying device which at least initially further conveys the packaged product group in the conveying direction or at most with an offset of half the height of the packaged product group.
  • the packaged product group is therefore gently released from the gripper for further conveyance. This avoids unnecessary heights of fall.
  • the holding jaws can be controlled in such a way that they grip the product group or groups that are at least partially encased by the web-shaped packaging material before the web-shaped packaging material is severed in the respective product or the respective product group.
  • the packaging of lens-shaped products P which are formed into a product group G, is explained in more detail below.
  • the device described below and the associated method are also suitable for other product shapes (for example spherical or cuboidal shapes).
  • certain process steps or parts or areas of the entire device are also suitable for packaging and handling individual products.
  • the gripper device described in more detail below is therefore also used for handling and processing individual products and the associated packaging material.
  • the device 1 shown comprises a separating device 2, a transfer station 3, a conveyor 4, a packaging material supply station 5, a gripper device 6 and a conveying device 7. From the transfer station 3 to the conveying device 7, essentially a linear, constant conveying direction F is maintained.
  • the device 1 is used to produce a packaged product group VP (see Figure 2 ).
  • the products P are lenticular sweets (for example drops) which are to be formed into a product group G consisting of five products P and packaged together.
  • the number and shape of the products P can, however, be any, as long as they can be grouped in this way.
  • the tubular packaging V is formed from a web-shaped packaging material VM.
  • the packaging V is intended to serve as primary packaging and must therefore be hermetically sealed.
  • What is special about the packaging V are the two funnel-shaped or trumpet-shaped closure ends VE in the form of gathered "knots" and a longitudinal fin LF in the form of a fin seam.
  • the packaging material VM therefore encloses the product group G on all sides.
  • the packaging material VM is made up in such a way that the film layers adhere to one another both in the area of the fin seam and in the area of the knots. It is therefore a closed, not self-opening packaging V, in which the product group G is kept in the specified product formation.
  • the separating device 2 comprises a continuously rotating separating plate 8.
  • the separating plate 8 has circular recesses 9 in the area of its outer circumference, which are arranged along a pitch circle and thus encircle in an annular manner (see FIG Figure 3 ).
  • the recesses 9 are combined to form recess groups 10. In each case five recesses 9 form a recess group 10.
  • the recesses 9 are arranged so close to one another that they touch or slightly overlap. This is how it is possible that the products P arranged in the recesses 9 touch or almost touch one another within a recess group 10.
  • the product is fed in as bulk goods.
  • the singling plate 8 is fed via a vibration feed.
  • the products P are then received individually in the recesses 9 and thus form product groups G arranged one behind the other.
  • the recesses 9 are dimensioned in such a way that only a single product P is received.
  • Deflectors in the form of brushes and guide devices serve to support the separation process.
  • the recesses 9 in the separating plate 8 are already arranged in groups. This means that the length of the product group G on the separating plate 8 is greater than the length of the product group G arranged inside the packaging
  • the products P received in the recesses 9 of the separating plate 8 slide horizontally during the rotation of the separating plate 8 over the sliding surface of a slideway (see FIG Figures 4 to 6 ).
  • the conveyor 4 In the area of the transfer station 3, the conveyor 4 is arranged below the separating plate 8.
  • the conveyor 4 runs with its conveying direction F essentially tangential to the pitch circle of the recesses 9.
  • the conveyor 4 has a feed chain 12, of which only some of the drivers 13 are shown.
  • the feed chain 12 is usually a roller chain on which the illustrated drivers 13 are arranged at a predetermined distance (driver pitch).
  • the drivers 13 are made relatively narrow and engage from below in a rail 14 with side walls.
  • a moving receiving pocket 15 is thus formed between two drivers 13 and the rail 14.
  • the slide track 11 To implement the product transfer into the lower-lying supply chain 12, the slide track 11 is interrupted.
  • the products P reach the receiving pocket 15, which runs synchronously with the product group G.
  • the size (length) of this receiving pocket 15 is designed such that the respective number of products P, which are combined in a package V, are received.
  • the products P are conveyed lying down, ie with a low center of gravity.
  • the products P thus assume their most stable position.
  • the most stable position does not correspond to the product formation that the products P later assume in the packaging V.
  • the products P transferred to the chain compartment 15 are transported with a carrier plane TE contained in the receiving pocket 15.
  • the continuous speeds of the separating plate 8 and of the feed chain 12 are coordinated with one another in such a way that the segmented recesses 9 of the separating plate 8 always correspond to a driver pitch or receiving pocket 9. The positional assignment between the separating plate 8 and the feed chain 12 is therefore ensured.
  • the alignment of the products P on their outer surface is necessary.
  • the flat product groups G must be erected. That is, the center of gravity of the products P is raised and the products P are then in a more unstable position.
  • the warehouse is aligned within the continuously running supply chain 12.
  • the geometry of the products P requires the erected product group G to be secured so that it does not tip over.
  • the side surfaces of the product P do not allow it to remain upright without support.
  • the rail 14 thus also represents a lateral limitation.
  • the actual erecting process is carried out by an erecting lever 16 pivotably arranged on the driver 13.
  • the movement of the erecting lever 16 is brought about via a cam control fixed to the frame and a control cam 17 arranged at the other end of the erecting lever 16.
  • the erecting lever 16 swivels counterclockwise into the chain compartment 15 and erects the product group G.
  • the pivoting movement results in a shortening of the chain compartment size or length and thus a shortening of the length L of product group G.
  • the lying product group G in the receiving pocket 15 has a length L1 and the erected product group G, which is moved by the erecting lever 16 towards the rear
  • the end of the receiving pocket 15 is pressed, has the length L2.
  • the length L2 is smaller than the length L1.
  • the initially lying product group G is thereby converted into a standing product group G (see Figure 7 ).
  • the product group G is moved from the conveyor 4 to the packaging means supply station 5.
  • the packaging material VM is fed in web form.
  • the shaping of the flatly fed endless packaging material VM into a packaging tube PS that is still open on the underside takes place by means of shaping devices (shaping shoulder, etc.) not shown in detail.
  • the upright product group G is then pushed into this packaging hose PS, which is still open at the bottom, by means of the conveyor 4.
  • the supply chain 12 moves in through the hose opening of the packaging hose PS, so that the product group G is largely enveloped by the packaging material VM.
  • the erected product group G is transported further by the supply chain 12 until it reaches the area of the gripper device 6.
  • the gripper device 6 has belt-shaped revolving chains on which grippers 18 are arranged at certain pitch intervals.
  • the grippers 18 thus run counterclockwise within a "gripper belt” 19.
  • the gripper band 19 describes a circular arc shape at the ends and in between it runs in a straight line.
  • the lower belt strand runs essentially parallel to the conveying direction F.
  • the grippers 18 are active on the product groups G in the lower belt strand of the gripper belt 19 and accordingly travel in a straight line above the product line in the conveying direction F.
  • the gripper belt 19 is a revolving, continuously driven one Unit, which is occupied accordingly over the circumference with evenly distributed grippers 18.
  • the grippers 18 are arranged at an identical distance from the entrainment division of the feed chain 12. They are in synchronism with the feed chain 12. That is, the feed speed of the feed chain 12 corresponds to the feed speed of the gripper tape 19. Furthermore, the packaging hose PS that is still open at the bottom also moves synchronously with the feed speed of the gripper tape 19 (see Fig Figures 8 and 9 ).
  • Each gripper 18 has a gripper bridge 20, two holding jaws 21 that can be opened and closed, and a pair of packer tines 22 in front of and behind the holding jaws 21.
  • the holding jaws 21 of the gripper 18 are cam-controlled and have an open and a closed position.
  • a gripper 18 swivels into the product level as a result of the deflection of the gripper belt 19 in the area of the transfer of the erected product group G (see FIG Figure 9 ).
  • the opened holding jaws 21 are guided laterally past the packaging tube PS and the products P contained therein without touching them.
  • the transfer takes place after a parallel alignment of the gripper 18 to the conveying direction F of the conveyor 4.
  • the products P are held both non-positively and positively by the holding jaws 21.
  • the erected product group G and the packaging hose PS are now both in the receiving pocket 15 and the lateral retaining jaws 21 are clamped.
  • the packer pairs 22 present on the gripper 18 are in the open position and have no contact with the packaging material VM or with the product group G.
  • the fixation is then released by the feed chain 12.
  • the erecting lever 16 is pivoted out of the receiving pocket 15 again. This is done again by a curve control.
  • the supply chain 12 subsequently releases the product group G and dips below the product level.
  • the drivers 13 roam the level of the product base and leave the packaging hose PS.
  • the holding jaws 21 are dimensioned in such a way that they encompass the entire erected product group G over the entire length L2.
  • the gripper 18 in several parts in order to clamp and fix each product P individually.
  • special locking devices can also be provided in addition to the recesses 23 at these points.
  • the packaging V is now completed within a gripper 18 of the continuously driven gripper belt 19.
  • the partial steps required to produce the packaging V take place along a linear path in the conveying direction F (see FIG Figures 10 to 16 ).
  • Each gripper 18 of the gripper tape 19 goes through these processing steps.
  • a roller chain (not shown in more detail) serves as an endless, revolving drive element.
  • the grippers 18 are held with their gripper bridges 20 on guide tracks (not shown) that are fixed to the frame and follow the chain movement directly.
  • the introduction of force takes place in the guides of the grippers 18 and not in the chain strand.
  • the drive train is operated continuously in rotation.
  • the representation shows the functional structure. Elements for gripper guidance, storage and control are not shown in more detail.
  • the holding jaws 21 and the pair of packers 22 are each rotatably mounted on the gripper bridge 20 and perform pivoting movements to fulfill the function.
  • the movement is initiated by cam tracks fixed to the frame using roller levers.
  • the movements of the individual elements are designed in such a way that both product group G and the packaging tube PS can be processed optimally (without damage).
  • the distance between the two packer pairs 22 is designed such that, in the closed state, it corresponds to the length L2 of the erected product group G plus a minimal air gap.
  • a sealed longitudinal fin LF is produced with the packer pair 22 still open (see FIG Figure 10 ). This is done by means of the rotating sealing rollers 24 and 25.
  • the film layers lying on top of one another in the area of the longitudinal fins LF to be formed are provided with cold seal adhesives.
  • the first sealing rollers 24 press these film layers tightly against one another and the second sealing rollers 25 are driven and, in the area of the longitudinal fin LF which is formed, ensure the advancement of the packaging tube PS by means of frictional force transmission.
  • the driven sealing rollers 25 are pressed against one another.
  • the packaging material sections belonging to the longitudinal fin LF are formed in the region of the formation of the hose by means of a molding shaft.
  • the holding jaws 21 of the grippers 18 fix the erected product group G and move them synchronously to the circumferential speed of the sealing rollers 24 over the area of the longitudinal seam formation. Due to the contiguous packaging tube PS, there are always several grippers 18 above the area of the longitudinal seam formation. As already mentioned, in the embodiment shown, the sealing of the film layers takes place by means of a pressure-sensitive adhesive mask located on the inside of the film. To achieve a tight wrap around the product groups G by the packaging hose PS, the sealing rollers 24 and 25 are arranged directly below the product base.
  • the packer pairs 22 of the grippers 18 are in the open position while the longitudinal fin LF is being closed.
  • the closed longitudinal fin LF is oriented vertically hanging down (see Fig. 12 ).
  • the alignment of the longitudinal fins LF in the horizontal plane is necessary in order to achieve the pack character described.
  • the forming takes place by means of a separate forming device.
  • these are driven folding rollers 26 (see Figure 11 ), which, due to their geometry, place the longitudinal fin LF horizontally directly on the bottom of the packaging tube PS.
  • the top of the folding rollers 26 is in one plane with the top of the sealing rollers 24 and 25, so that the longitudinal fin LF is placed completely horizontally on the packaging tube PS without a vertical portion (see FIG Fig. 13 ).
  • the longitudinal fin LF can also be reshaped Can be implemented using fixed guide plates and other converter devices.
  • the holding jaws 21 of the gripper 18 continue to fix the erected product group G.
  • the packer pairs 22 of the gripper 18 are still in the open position.
  • the packaging hose PS and the erected product groups G located therein continue to be transported by the holding jaws 21 of the continuously driven gripper 18. Further support of the product base is not absolutely necessary.
  • the film tube FS is slightly pretensioned between two grippers 18 by an infeed movement of the corresponding packer pairs 22.
  • a cam track (not shown) that is fixed to the frame initiates a movement into the respective packer pair 22, which tapers the outer diameter of the packaging hose PS, viewed in the conveying direction F, before and after the erected product group G (see FIG Figures 15 and 16 ).
  • an additional tension is introduced into the area of the packaging tube PS between two grippers 18, so that the latter is tensioned in the longitudinal direction.
  • the contour of a packer pair 22 is designed in such a way that it encloses the packaging hose PS on all sides when contact begins during the infeed movement.
  • a packer pair 22 consists of at least two packers, which mesh with one another in a toothed manner.
  • both packer pairs 22 have a common pivot point 27 for optimal hose deformation, the axis of which is aligned parallel to the conveying direction F (see FIG Figure 14 and 15th ).
  • the packer packers of a packer packer pair 22 are pivoted symmetrically to the center of the product and touch the packaging hose PS simultaneously on both the front and the rear.
  • the packaging hose PS fixed and pretensioned by the holding jaws 21 and packer pairs 22 is transported by means of the gripper belt 19 over a separating device 28.
  • the feed of the gripper tape 19 continues to take place continuously.
  • the severing cut is made by means of a scissor cut in the middle between two knives 29 and 30 designed in the manner of a gripper.
  • the knife 29 and the counter knife 30 rotate in opposite directions below the product plane around a common pivot point.
  • both knife blades are subject to mutual pretensioning in the area of the contact point of the cutting edges.
  • the pretensioning of the packaging hose PS has a supporting effect initiates the cutting process in order to avoid tearing of the packaging tube PS or the tube section to be formed by the knives 29 and 30. Furthermore, the alignment of the cutting line perpendicular to the conveying direction F of the packaging tube PS is supported in this way. To avoid relative movements in the conveying direction F between the knives 29 and 30 and the packaging hose PS, both knives 29 and 30 are subject to an oscillating movement in the axial direction (in and against the conveying direction F) with respect to their axis of rotation.
  • the completion of the packaging V follows the separation process.
  • the packer pairs 22 of the gripper 18 are subject to a further infeed movement initiated by the outer curved path, which is fixedly mounted on the frame.
  • the shirring pairs 22 taper the hose cross-section on the edge sides of the erected product group G in such a way that a shirred knot is formed.
  • the gathered knot retains its shape.
  • the inner sides of the film adhere to one another due to the pressure applied from the outside (see Figure 21 ).
  • the lateral, free hose section is shortened.
  • the gap between two hose ends of adjacent grippers 18 increases further.
  • the packer pairs 22 and the holding jaws 21 of the grippers 18 are subject to an opening movement initiated by the outer, frame-fixedly mounted cam track.
  • the packer pairs 22 and the holding jaws 21 of the grippers 18 are subject to an opening movement initiated by the outer, frame-fixedly mounted cam track.
  • the packaged product group VP is transferred to a continuously driven discharge belt 31 of the conveyor device 7.
  • Other embodiments allow, among other things, the use of slides, free delivery and transfer to an orderly transport system.
  • the now free gripper 18 is then deflected upwards according to the course of the gripper tape 19.
  • the grippers 18 are moved in the manner of gondolas suspended on both sides, thereby completing the packaging V.
  • the erection of the products P takes place by a linear movement of a front pusher 32 within the receiving pocket 15 of the feed chain 12.
  • the pusher 32 is controlled via a cam track fixed to the frame by means of a coupling gear.
  • the size of the receiving pocket 15 is shortened as a result of the linear movement of the slide 32 in such a way that the products P are erected and are secured in their new positional orientation by the front and rear delimitation of the receiving pocket 15.
  • the length of the receiving pocket 15 is specified exclusively by a single driver 13.
  • These drivers 13 are repeatedly arranged on the drive chain, for example a roller chain, of the feed chain 12 in the predetermined pitch.
  • the dimensioning of the cam control and the coupling gear is designed in such a way that the movement initiated on the products P leads to the erection of the same and does not cause any damage to the product P.
  • the outer surfaces of the products P slide against one another during the erection process.
  • the shape of the product cross-section supports the avoidance of jamming products P during the erection process.
  • the pre-orientation of the product layer within the receiving pocket 15 must, in the case of a different product cross-section, avoid blocking of the products P during the erection process.
  • supporting elements can be used in the area of the feed chain 12 as well as the frame-fixed (not shown) outer product guides (e.g. rails), which support the orientation of the product position during the erecting movement.
  • outer product guides e.g. rails
  • a roller chain serves as an endless, revolving drive element.
  • the drivers 13 are held on guide tracks that are fixed to the frame and follow the chain movement directly. The force is introduced into the guides of the driver 13, not into the chain strand.
  • the chain strand is operated continuously in a revolving manner.
  • the aim is to maximize the efficiency of the processing process so that, given the process reliability, missing individual products P in the area of the product transfer from the separating plate 8 into the supply chain 12 are to be avoided.
  • incompletely filled recesses 9 of a recess group 10 in the separating plate 8 can be detected by sensors.
  • the transfer station 3 is blocked exclusively for this product group by means of a separately connected locking disk, so that a transfer of the products P from this incompletely filled segment (recess group 10) into the supply chain 12 does not occur takes place.
  • the incompletely filled segment of the separating plate 8 is fed to the separating process in its current composition during a further rotation of the separating plate 8. No products P are transferred to the receiving pocket 15 of the synchronously running feed chain 12 located in the transfer area.
  • the feed chain 12 continues to run continuously.
  • the empty receiving pocket 15 travels through the entire section of the supply chain 12 up to and including the area of the product transfer into the gripper belt 19.
  • the design of the holding jaw arrangement is chosen such that its closing movement is realized under spring load.
  • the outer, fixedly arranged cam tracks under the action of a roller lever of the gripper 18 only perform the movement for opening the holding jaws 21. This design ensures that the holding jaws 21 reduce their distance from one another to a minimum in the event of a missing product formation, so that the packaging hose PS is clamped directly by the holding jaws 21.
  • the processing of the packaging tube PS takes place here on the further advance path of the gripper tape 19, analogously to the process described, without deactivating individual processing steps.
  • an empty pack is ejected, which is handled separately from the product flow of the packaged products VP.
  • Another embodiment for avoiding the resulting empty bags is the decentralization of the drives of the separating plate 8 relative to the feed chain 12. As shown above, the incompletely filled segment of the separating plate 8 is blocked by a locking disk. The feed chain 12 is continuously driven. By activating the drive, the separating plate 8 is impressed with an additional positional offset, so that in the area of the product transfer to the feed chain 12, the next, completely filled product group G of the separating plate 8 is synchronized to the position of the receiving pocket 15 of the feed chain 12. This embodiment avoids empty and incompletely filled receiving pockets 15 within the feed chain 12.
  • a package V can also be produced with the aid of the gripper belt 19 with individual products P instead of product groups G.
  • the product group G does not necessarily have to be aligned with the outer surface.
  • the products P can be attached to the gripper tape 19 can also be fed horizontally.
  • the product can be fed via devices other than a separating plate 8, for example by means of a belt feed, direct input into the continuously running feed chain 12, etc.
  • the product groups G need not be formed by segmenting the separating plate 8 into individual groups.
  • the supply chain 12 does not necessarily have to be designed as a continuous chain strand. It is also possible to use separate driven drivers 13 (individual linear drives).
  • the transfer of the products P into the supply chain 12 is also possible with auxiliary devices for safe ejection from the recess 9 of the separating plate 8.
  • the erection of the products P is also conceivable through the relative movement of two drivers 13 which are arranged on individually controlled linear drives.
  • the erecting of the products P can also be controlled from the sliding wall of the receiving pocket 15 or an erecting lever 16 arranged in this area.
  • the vorrauseilende wall of the receiving pocket 15 is fixed in this embodiment.
  • the erection can also take place by the relative movement of two elements of the driver 13 and center the product group G, for example, in the area of the driver center.
  • the product contour does not necessarily have to be elliptical for erecting. Other product cross-sections require a pre-orientation of the arrangement within the receiving pocket 15 in order to erect it.
  • the drivers 13 can also be driven by other endless, revolving drive elements.
  • the drive of the driver 13 is also possible via individual drives.
  • the drive of the gripper belt 19 can also be implemented as an individual drive for each gripper 18 (linear drives). Instead of cold sealing, heat sealing or other sealing technologies are also conceivable.
  • Several or all pairs of sealing rollers can be driven.
  • the pivot points of the two packers of a packer pair 22 can also be arranged offset to one another in another embodiment. A concentric axis of rotation is not absolutely necessary. Thus, the embodiment of the gathering is significantly influenced.
  • the severing cut can also be made eccentrically between two grippers 18.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Container Filling Or Packaging Operations (AREA)

Claims (3)

  1. Dispositif d'emballage de produits (P) de petite taille, en particulier de produits de confiserie, qui sont réunis en groupes de produits (G) en forme de pile, dans un matériau d'emballage (VM) en forme de film, avec un dispositif de préhension comprenant plusieurs préhenseurs (18), dans lequel les préhenseurs (18) présentent respectivement des mâchoires de retenue (21), permettant de retenir le groupe de produits (G) au moins partiellement enveloppé par le matériau d'emballage (VM) en forme de film, et des unités de collecte agencées devant et derrière les mâchoires de retenue (21) et permettant de produire une fermeture par serrage et des extrémités de fermeture (VE) en forme d'entonnoir ou en forme d'éventail de l'emballage (V), et dans lequel le dispositif de préhension prédéfinit pour les préhenseurs (18) une trajectoire de préhension qui, au moins sur une section de longueur prédéfinie supérieure à la longueur d'un groupe de produits (G), s'étend parallèlement à la direction de transport (F) prédéfinie par un convoyeur (4) amenant le groupe de produits (G) au dispositif de préhension.
  2. Dispositif selon la revendication 1, caractérisé en ce que les mâchoires de retenue (21) sont commandées de telle manière qu'elles saisissent le ou les groupe(s) de produits (G) au moins partiellement enveloppé(s) par le matériau d'emballage (VM) en forme de film avant que le matériau d'emballage (VM) en forme de film ne soit séparé en parties qui sont associées aux groupes de produits (G) respectifs.
  3. Procédé d'emballage de produits (P) de petite taille, en particulier de produits de confiserie, qui sont réunis en groupes de produits (G) en forme de pile, comprenant les étapes ci-dessous consistant à :
    a. démarier les produits (P) et former des groupes de produits (G) d'une longueur L,
    b. transférer les groupes de produits (G) à un convoyeur (4),
    c. positionner les produits (P) au sein d'un groupe de produits (G), ce qui entraîne un raccourcissement de la longueur L du groupe de produits (G),
    d. acheminer un matériau d'emballage (VM) en forme de bande,
    e. envelopper au moins partiellement et de manière tubulaire le groupe de produits (G) avec le matériau d'emballage (VM),
    f. réceptionner à l'aide d'un préhenseur (18) les groupes de produits (G) au moins partiellement enveloppés,
    g. créer un emballage (V) grâce aux sous-étapes ci-dessous consistant à :
    i. réaliser un tube d'emballage (PS) fermé au niveau de sa circonférence à partir du matériau d'emballage (VM),
    ii. mettre en place de manière latérale des mâchoires de retenue (21) d'un préhenseur (18) avec interposition du matériau d'emballage (VM) au niveau de respectivement un groupe de produits (G) et laisser le convoyeur (4) prendre en charge le transport du groupe de produits (G),
    iii. sectionner le tube d'emballage (PS) entre deux groupes de produits (G) enveloppés et retenus respectivement par un préhenseur (18),
    iv. fermer les extrémités ouvertes du tube d'emballage (PS) en y incluant le groupe de produits (G), dans lequel les préhenseurs (18) présentent, devant et derrière les mâchoires de retenue (21), des unités de collecte qui collectent les extrémités ouvertes du tube d'emballage (PS) afin de les fermer et forment une fermeture par serrage et des extrémités de fermeture (VE) en forme d'entonnoir ou en forme d'éventail,
    v. dégager le groupe de produits (VP) emballés du préhenseur (18).
EP19208804.5A 2017-09-25 2018-06-25 Dispositif et procédé d'emballage sous la forme d'un empilement de produits de petite taille Active EP3632805B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017122195.6A DE102017122195A1 (de) 2017-09-25 2017-09-25 Verfahren zum stapelförmigen Verpacken von kleinstückigen Produkten
EP18179598.0A EP3459865B1 (fr) 2017-09-25 2018-06-25 Procédé et dispositif d'emballage sous forme d'empilement des produits de petite taille

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP18179598.0A Division-Into EP3459865B1 (fr) 2017-09-25 2018-06-25 Procédé et dispositif d'emballage sous forme d'empilement des produits de petite taille
EP18179598.0A Division EP3459865B1 (fr) 2017-09-25 2018-06-25 Procédé et dispositif d'emballage sous forme d'empilement des produits de petite taille

Publications (2)

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EP3632805A1 EP3632805A1 (fr) 2020-04-08
EP3632805B1 true EP3632805B1 (fr) 2021-09-29

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EP18179598.0A Active EP3459865B1 (fr) 2017-09-25 2018-06-25 Procédé et dispositif d'emballage sous forme d'empilement des produits de petite taille
EP19208804.5A Active EP3632805B1 (fr) 2017-09-25 2018-06-25 Dispositif et procédé d'emballage sous la forme d'un empilement de produits de petite taille

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EP18179598.0A Active EP3459865B1 (fr) 2017-09-25 2018-06-25 Procédé et dispositif d'emballage sous forme d'empilement des produits de petite taille

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EP (2) EP3459865B1 (fr)
DE (1) DE102017122195A1 (fr)
ES (2) ES2896683T3 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115258273A (zh) * 2022-08-09 2022-11-01 苏州佳祺仕信息科技有限公司 包装设备、包装设备的控制方法、装置、设备及存储介质
CN117228354B (zh) * 2023-11-16 2024-01-12 合肥派联智能装备有限公司 一种智慧包装用成品码垛设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH390131A (de) * 1961-11-29 1965-03-31 Sig Schweiz Industrieges Vorrichtung zum kontinuierlichen Herstellen von Packungen
US4352265A (en) * 1979-10-15 1982-10-05 Otto Hansel Gmbh Apparatus for producing bar packages of preferably individually wrapped sweets or similar pieces of confectionery
US6189300B1 (en) * 1999-08-02 2001-02-20 Tuan Vinh Le Wrapping machine
EP1188672A1 (fr) 2000-09-18 2002-03-20 Mars B.V. Procédé et dispositif pour emballer un produit alimentaire, tel qu'un bonbon, et un bonbon emballé
JP4390800B2 (ja) * 2006-12-05 2009-12-24 テンチ機械株式会社 ひねり包装機
DE102012212825A1 (de) * 2012-07-20 2014-01-23 Robert Bosch Gmbh Produktstapelvorrichtung

Also Published As

Publication number Publication date
EP3459865B1 (fr) 2020-07-29
EP3632805A1 (fr) 2020-04-08
ES2822202T3 (es) 2021-04-29
ES2896683T3 (es) 2022-02-25
EP3459865A1 (fr) 2019-03-27
DE102017122195A1 (de) 2019-03-28

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