EP3459865B1 - Verfahren und vorrichtung zum stapelförmigen verpacken von kleinstückigen produkten - Google Patents

Verfahren und vorrichtung zum stapelförmigen verpacken von kleinstückigen produkten Download PDF

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Publication number
EP3459865B1
EP3459865B1 EP18179598.0A EP18179598A EP3459865B1 EP 3459865 B1 EP3459865 B1 EP 3459865B1 EP 18179598 A EP18179598 A EP 18179598A EP 3459865 B1 EP3459865 B1 EP 3459865B1
Authority
EP
European Patent Office
Prior art keywords
product
product group
packaging
products
gripper
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
EP18179598.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3459865A1 (de
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.)
Filing date
Publication date
Application filed by Theegarten Pactec GmbH and Co KG filed Critical Theegarten Pactec GmbH and Co KG
Priority to EP19208804.5A priority Critical patent/EP3632805B1/de
Publication of EP3459865A1 publication Critical patent/EP3459865A1/de
Application granted granted Critical
Publication of EP3459865B1 publication Critical patent/EP3459865B1/de
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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 a method for packaging small products, in particular confectionery products, which are formed into stacked product groups.
  • small products in particular confectionery products
  • it is a major challenge to assemble and package small-sized products into stacked product groups without fear of damage to the confectionery. Completing the packaging in particular is extremely difficult.
  • Devices for packaging product groups are from the CH 390 131 A , US 4352265 A , and the WO 2014/012913 A1 known. From the JP 2008 137716 A a device for packaging individual products is known.
  • the length L can be shortened when the product groups are transferred to the conveyor, 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 fanned product arrangement facilitates the subsequent alignment and prevents the products from blocking or jamming. Furthermore, this also ensures that unfavorable product forms (for example Cuboid shape etc.) can be used.
  • a lens shape is less of a problem, but here, too, the diversified product arrangement is cheap because it makes the process flow less prone to failure.
  • the conveyor can have receiving pockets for each product group, 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 sliding wall. However, elements that reach into the area of the receiving pocket and straighten the products are also possible.
  • a rotatable separation plate is used to separate the products, which has group-shaped recesses for each product group, the products entering the recesses from above and being released from the recesses to the conveyor at a transfer station become.
  • the product can be fed in as bulk material.
  • Turning the separating plate automatically leads to the filling of the recesses by the products arranged in bulk on the turntable.
  • the feed 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 inevitably forms.
  • the products generally 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 downwards out of the cutouts and into a receiving pocket of the conveyor.
  • the drop height can be very low.
  • the sheet-like packaging material is led flatly from above to the product groups conveyed by the conveyor and is subsequently shaped by means of shaping devices to form a packaging tube which is still open on the underside, and the section of the conveyor receiving the product group from below into open film tube engages.
  • the conveyor and the grippers have a common conveying path over a certain length section, so that product groups can also be handed over very easily, because a conveyor section adapted to the longitudinal extent of the product group from both the conveyor and the Grippers run together. This is not the case with rotating packing heads, where there is theoretically only one tangential point at which the transfer takes place.
  • grippers When picking up the partially encased product group, holding jaws of the gripper can put on the side of each product group with the packaging material interposed and take over the promotion of the product group from the conveyor.
  • the grippers offer the possibility of carrying out further process steps on the packaging material on the underside of the product group. As a rule, the bottom of the product group lies in the conveyor, which is why access is difficult there.
  • the grippers already position the packaging material over a large area of the scope of the product group, but allow said access.
  • the grippers continue to convey the product groups together with the packaging material in essentially the same conveying direction as the conveyor previously. Due to the fact that the grippers essentially take over the conveyance of the product groups from the conveyor and essentially maintain the direction of conveyance, the packaging material does not necessarily have to be separated into individual product sections before delivery, but can still be handled as a 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 usual rotating packing heads.
  • a longitudinal fin is formed and sealed during the manufacture of the packaging and the packaging tube.
  • the use of a sealed longitudinal fin also paves the way to using the packaging as the primary packaging.
  • Cold seal adhesives are used in the formation of longitudinal fins, the adhesive areas of which are applied to the same side of the packaging material and are then pressed together in the continuous process. It can also be used to pack heat-sensitive products. Depending on the product selection, heat-sealing foils can of course also be used.
  • Such a longitudinal fin can be produced while the product groups have already been taken over by the grippers.
  • the longitudinal fin can be applied to the product group in order to obtain a more pleasing appearance.
  • holding the gripper in place can already produce a certain pretension in the packaging tube between two product groups, each of which is held by a gripper.
  • the packaging tube is at least additionally preloaded between two product groups in order to cut it. There is therefore a targeted introduction of a pretension which promotes severing. If there is already a certain pre-tension due to simply gripping and transporting the grippers, this pre-tension is consciously increased again.
  • two knives rotating in opposite directions which can be moved and moved back and forth together parallel to the conveying direction and only pivot temporarily into the conveying path of the product groups and the packaging tube, are used to cut through the packaging tube.
  • the knives preferably move with 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 tube between two product groups, then dive down and move back against the direction of conveyance. This creates an oscillating movement of the knives in and against the conveying direction.
  • the grippers in front of and behind the holding jaws can have gathering units which gather the open ends of the packaging tube 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 assembled in such a way that a seal also takes place in the area of the "gathering knot", for example with a cold seal adhesive or a pair of heated packers.
  • a suitably sealed longitudinal fin an elegant primary packaging is created. There is no longer any need for additional packaging and the packaged product group can thus be placed on the sales route.
  • the gripper can deliver it to a conveying device, which at least initially packs 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 carefully released from the gripper for further conveyance. Unnecessary heads are avoided.
  • a device for packaging small-sized products, in particular confectionery products, with a web-shaped packaging material comprises a plurality of grippers, each holding jaws for holding the product or product group at least partially encased by the web-shaped packaging material and packer units arranged in front of and behind the holding jaws for producing a clamp closure and funnel-shaped ends of the packaging.
  • the gripper device specifies a gripper path for the grippers, which runs at least over a predetermined length section, which is greater than the length of a product or a product group, parallel to the conveying direction predetermined by a conveyor device feeding the product or the product group of the gripper device.
  • Usual gripper devices are designed as packing heads and rotate about an axis.
  • the gripper device is able to follow at least a part of the path specified by the conveyor (e.g. at least 2 times the product length or 1.5 times the length of the product group or until the entire packaging is completed).
  • This opens up the possibility of handing over the packaging material in web form without first dividing it into corresponding product sections.
  • the subsequent dividing process can then be carried out, for example, on the gripper device, which generally gives better access than the conveyor.
  • the gripper device with the grippers can preferably be brought up from above, while support from below continues to take place until the grippers take over. Accordingly, the grippers move upwards again after the product or product group has been released.
  • the gripper path is preferably straight between the takeover of the products or the product groups and the delivery.
  • the holding jaws can be controlled in such a way that they grip the product or product group at least partially encased by the web-shaped packaging material before the web-shaped packaging material in the respective product or the respective product group is divided into sections.
  • the packaging of lenticular 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 cuboid). Some parts or areas of the entire device are also suitable for packaging and handling individual products.
  • the gripper device described in more detail below also serves for the handling and processing of 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 feed station 5, a gripper device 6 and a conveyor device 7. From the transfer station 3 to the conveyor device 7, a substantially constant, linear conveying direction F is maintained.
  • the device 1 is used to produce a packaged product group VP (see Figure 2 ).
  • the products P in the present case are lenticular sweets (for example drops) which are to be formed into a product group G consisting of five products P and packed together.
  • the number and shape of the products P can, however, be as long as they can be grouped in this way.
  • the tubular packaging V is formed from a web-shaped packaging material VM. In the present case, packaging V is intended to serve as primary packaging and must therefore be hermetically sealed.
  • the packaging V What is special about the packaging V are also 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 assembled 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, non-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 run in a ring (see Figure 3 ).
  • the recesses 9 are combined into recess groups 10. Five recesses 9 each form a recess group 10.
  • the recesses 9 are arranged so close to one another that they touch or slightly overlap. This makes it possible for the products P arranged in the cutouts 9 to touch or almost touch within a cutout group 10.
  • the product is fed in as bulk goods.
  • the feeder 8 is fed via a vibration feeder.
  • the products P are then received individually in the cutouts 9 and thus form product groups G arranged one behind the other.
  • the cutouts 9 are dimensioned such that only a single product P is taken up.
  • deflectors are used in the form of brushes and guiding devices (not shown).
  • the cutouts 9 are already arranged in groups in the separation plate 8. 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 within the packaging.
  • the separating plate 8 rotates counterclockwise and conveys the separated and grouped products P to the transfer station 3
  • the products P received in the recesses 9 of the separating plate 8 slide horizontally over the sliding surface of a slideway during the rotation of the separating plate 8 (see 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 with its conveying direction F runs essentially tangentially to the pitch circle of the recesses 9.
  • the conveyor 4 has a feed chain 12, only some of the drivers 13 of which are shown.
  • the feed chain 12 is usually a roller chain on which the carriers 13 shown are arranged at a predetermined distance (carrier pitch).
  • the drivers 13 are 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 slideway 11 In order to implement the product transfer into the lower-lying supply chain 12, the slideway 11 is interrupted. As a result of the force of gravity, the products P arrive in the receiving pocket 15 running 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 packaging V, are each received.
  • the products P are lying, i.e. with a deep focus.
  • the products P thus occupy their most stable position.
  • the most stable position does not correspond to the product formation that the products P later occupy 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 The separating plate 8 and the feed chain 12 are matched to one another in such a way that the segmented cutouts 9 in the separating plate 8 always match a carrier pitch or receiving pocket 9. The location assignment between the separating plate 8 and the feed chain 12 therefore remains secured.
  • the packaging of product group G requires the alignment of products P on their outer surface.
  • the product groups G lying flat must be erected. That is, the center of gravity of the products P is raised and the products P are then in an unstable position.
  • the bearings are 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 faces of the product P do not allow it to remain erect without support.
  • the rail 14 thus also represents a lateral limitation.
  • the actual erection process is carried out by an erection lever 16 pivotably arranged on the driver 13.
  • the movement of the erection lever 16 is effected via a cam control which is fixed to the frame and a control cam 17 arranged at the other end of the erection lever 16.
  • the erection lever 16 pivots counterclockwise into the chain compartment 15 and sets up the product group G.
  • the pivoting movement shortens the chain compartment size or length and thus shortens the length L of the 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 raised by the erecting lever 16 against the rear one End of the receiving pocket 15 is pressed, has the length L2.
  • the length L2 is less 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 material feed station 5.
  • the packaging material VM is fed in web form.
  • shaping devices shaping shoulder, etc.
  • the sheet-like supply of endless packaging material VM is formed into a packaging tube PS, which is still open at the bottom.
  • the upright product group G is then inserted into this packaging tube PS, which is still open at the bottom, by means of the conveyor 4.
  • the feed chain 12 runs through the tube opening of the packaging tube PS, so that the product group G is largely covered by the packaging material VM.
  • the erected product group G is transported further by the feed chain 12 until it reaches the area of the gripper device 6.
  • the gripper device 6 has chains in the form of a band, on which grippers 18 are arranged at certain spacing 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 become 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 rotating, continuously driven one Unit, which is appropriately occupied over the circumference with uniformly distributed grippers 18.
  • the grippers 18 are arranged at an identical distance from the carrier pitch 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 belt 19. Furthermore, the packaging tube PS, which is still open at the bottom, also moves synchronously with the feed speed of the gripper belt 19 (see Figures 8 and 9 ).
  • Each gripper 18 has a gripper bridge 20, two opening and closing holding jaws 21 and a pair of packers 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 through the deflection of the gripper belt 19 in the area of the transfer of the erected product group G into the product plane (see Figure 9 ).
  • the open holding jaws 21 are guided past the packaging tube PS and the products P contained therein without touching them.
  • the transfer takes place after the gripper 18 is aligned parallel to the conveying direction F of the conveyor 4.
  • the closing movement of the holding jaws 21 is initiated by means of a cam track mounted on the frame.
  • the holding jaws 21 are each provided with recesses 23 adapted to the products P.
  • the products P are held both positively and positively by the holding jaws 21.
  • the erected product group G and the packaging tube PS are now clamped both in the receiving pocket 15 and in the lateral holding jaws 21.
  • the pair of packers present on the gripper 18 22 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 supply chain 12.
  • the erecting lever 16 is pivoted out of the receiving pocket 15 again. This is done again through a curve control.
  • the feed chain 12 subsequently releases the product group G and dips below the product level.
  • the drivers 13 roam the level of the product floor and leave the packaging tube PS.
  • the dimensioning of the holding jaws 21 is carried out in such a way that it comprises 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 catches can also be provided in addition to the recesses 23 at these points. The encapsulation of product group G is thus guaranteed on all sides.
  • the packaging V is now completed within a gripper 18 of the continuously driven gripper belt 19.
  • the sub-steps required for producing the packaging V take place along a linear path in the conveying direction F (see Figures 10 to 16 ).
  • Each gripper 18 of the gripper belt 19 goes through these processing steps.
  • a roller chain serves as an endless, rotating drive element.
  • the grippers 18 are received with their gripper bridges 20 on guideways (not shown) fixed to the frame and follow the chain movement directly.
  • the force is introduced into the guides of the grippers 18 and not into the chain strand.
  • the drivetrain is operated continuously and continuously.
  • the illustration shows the functional structure. Elements for gripper guidance, storage and control are not shown in detail.
  • the holding jaws 21 and the pair of packers 22 are each rotatably mounted on the gripper bridge 20 and perform pivoting movements in order to perform the function.
  • the movement is initiated by cam tracks fixed to the frame via roller levers.
  • the movements of the individual elements are designed in such a way that both product group G and the packaging tube PS are processed optimally (without damage).
  • the distance between the two pair of packers 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 pair of packers 22 still open (see Figure 10 ). This is done by means of the rotating sealing rollers 24 and 25.
  • the foil layers lying one on top of the other 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 firmly against one another and the second sealing rollers 25 are driven and in the area of the longitudinal fin LF formed, by means of frictional force transmission, for feeding the packaging tube PS.
  • the driven sealing rollers 25 are pressed together.
  • the packaging sections belonging to the longitudinal fin LF are formed in the area of the tube formation by means of a shaped shaft.
  • the holding jaws 21 of the grippers 18 fix the erected product group G and move them synchronously with the peripheral speed of the sealing rollers 24 over the area of the longitudinal seam formation. Due to the coherent 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 film layers are closed by means of a pressure-sensitive adhesive mask located on the inside of the film. In order to realize tight wrapping of the product groups G through the packaging tube PS, the sealing rollers 24 and 25 are arranged directly below the product base.
  • the pair of packers 22 of the grippers 18 are in the open position while the longitudinal fin LF is being closed.
  • the closed longitudinal fin LF is vertically hanging downwards (see Fig. 12 ).
  • the alignment of the longitudinal fins LF in the horizontal plane is necessary to implement the described packing character.
  • the shaping takes place by means of a separate shaping device.
  • it is driven folding rollers 26 (see Figure 11 ) which, due to their geometry, place the longitudinal fin LF directly against the bottom of the packaging tube PS horizontally.
  • the upper side of the folding rollers 26 is in one plane with the upper sides of the sealing rollers 24 and 25, so that the longitudinal fin LF is completely laid horizontally against the packaging tube PS without a vertical portion (see Fig. 13 ).
  • the longitudinal fin LF can also be formed by means of fixed guide plates and further converter devices.
  • the holding jaws 21 of the gripper 18 continue to fix the erected product group G.
  • the pair of packers 22 of the gripper 18 are still in the open position.
  • the packaging tube PS and the erected product groups G located therein continue to be transported through 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 a feed movement of the corresponding pair of gatherers 22.
  • a movement into the respective pair of packers 22 is initiated by a cam track (not shown) which is fixed to the frame and which narrows the outer diameter of the packaging tube PS, viewed in the conveying direction F, before and after the erected product group G (see 15 and 16 ).
  • a cam track (not shown) which is fixed to the frame and which narrows the outer diameter of the packaging tube PS, viewed in the conveying direction F, before and after the erected product group G (see 15 and 16 ).
  • the contour of a pair of packers 22 is designed such that it surrounds the packaging tube PS on all sides when contact begins during the feed movement.
  • a pair of packers 22 consists of at least two packers, which mesh with one another.
  • both pair of packers 22 have a common pivot point 27, the axis of which is aligned parallel to the conveying direction F (see Figure 14 and 15 ).
  • the gatherers of a pair of gatherers 22 are pivoted symmetrically to the center of the product and simultaneously touch the packaging tube PS on both the front and the back.
  • the pre-tensioned packaging tube PS which is fixed and pretensioned by the holding jaws 21 and pairs of packers 22, is transported by means of the gripper belt 19 via a separating device 28.
  • the feed of the gripper belt 19 continues to take place continuously.
  • the separating cut is realized by means of a scissor cut in the middle between two gripper-like knives 29 and 30.
  • the knife 29 and the counter knife 30 rotate in opposite directions below the product plane about a common pivot point.
  • both knife blades are subject to mutual pre-tensioning in the area of the contact point of the cutting edges.
  • the pretensioning of the packaging tube PS has a supporting effect on 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, on this The way the alignment of the cutting line perpendicular to the conveying direction F of the packaging tube PS supports. To avoid relative movements in the conveying direction F between the knives 29 and 30 and the packaging tube 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.
  • FIG 17 are the knives 29 and 30 before engagement in the packaging tube PS.
  • the knives 29 and 30 are then in engagement with the packaging tube PS (see Figure 18 ).
  • the knives 29 and 30 move axially at a synchronous speed to the gripper belt 19, so that there are no relative movements in this direction.
  • Figure 19 the completion of the cut is shown.
  • the axial movement of the knife 29 and counter knife 30 is subject to a reversal of direction.
  • the pretensioning of the packaging tube PS between two grippers 18, formed by the initial feed movement of the pair of packers 22, is released.
  • a free space is formed between the separate hose sections (see Figure 20 ).
  • the rotation and the contour of the knives 29 and 30 are designed such that the grippers 18 and the packaging tube PS are transported further without collision during the return stroke of the separating device 28.
  • the pair of packers 22 of the gripper 18 are subject to a further infeed movement initiated by the outer cam track mounted on the frame.
  • the pair of packers 22 taper the tube cross section on the edge sides of the erected product group G in such a way that a gathered knot is formed.
  • the gathered knot retains its shape.
  • the inside of the film adheres to each other due to the external pressure (see Figure 21 ).
  • the lateral, free hose section is shortened. The gap between two hose ends of adjacent grippers 18 increases further.
  • the pair of packers 22 and the holding jaws 21 of the grippers 18 are subject to an opening movement initiated by the outer cam track mounted on the frame.
  • the pair of packers 22 is opened completely before the holding jaws 21 are opened (see Figure 22 ).
  • the packaged product group VP is transferred to a continuously driven delivery 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 subsequently deflected upwards in accordance with the course of the gripper belt 19.
  • the grippers 18 are moved in the manner of gondolas suspended on both sides and thereby complete the packaging V.
  • the Figure 24 another embodiment for the orientation of the products P described.
  • the main difference is in the other configuration of the driver 13.
  • the products P are erected by a linear movement of a front slide 32 within the receiving pocket 15 of the supply chain 12.
  • the slide 32 is actuated 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 division.
  • the dimensioning of the cam control and the coupling gear is designed such that the movement initiated on the products P leads to the erection of the same and none 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 helps to avoid jamming products P during the erection process.
  • the pre-orientation of the product position within the receiving pocket 15 must, in the case of a different product cross section, prevent the products P from blocking during the erection process.
  • outer product guides are e.g. Rail) applicable, which support the orientation of the product position during the erection movement.
  • a roller chain serves as an endless, rotating drive element.
  • the drivers 13 are received on guideways 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 all round.
  • the objective is to maximize the efficiency of the processing operation, so that given individual process reliability, missing individual products P in the area of product transfer from the separating plate 8 into the supply chain 12 can be avoided.
  • incompletely filled recesses 9 of a recess group 10 can be sensed in the separating plate 8.
  • the transfer station 3 is shut off by means of a separately activated locking disk exclusively for this product group, so that products P from this incompletely filled segment (recess group 10) are not transferred to the supply chain 12.
  • the incompletely filled segment of the separation plate 8 is during a a further revolution of the separation plate 8 is fed to the separation process in its current composition. No products P are transferred to the receiving pocket 15 of the synchronously running supply chain 12 located in the transfer area.
  • the feed chain 12 continues to run continuously.
  • the empty receiving pocket 15 runs 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 closing holding jaws 21 of the gripper 18 cannot make any contact with products P.
  • the design of the holding jaw arrangement is selected such that its closing movement is realized in a spring-loaded manner.
  • the outer curved tracks arranged fixed to the frame, under the action of a roller lever of the gripper 18, only perform the movement for opening the holding jaws 21. This configuration ensures that the holding jaws 21 reduce their distance from one another to a minimum in the absence of product formation, so that the packaging tube PS is clamped directly by the holding jaws 21.
  • the packaging tube PS is processed here on the further feed path of the gripper belt 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 with respect to the supply chain 12.
  • the incompletely filled segment of the separating plate 8 is blocked by a locking disk.
  • the feed chain 12 is driven continuously.
  • An additional position offset is impressed on the separating plate 8 by the actuation of the drive, so that in the area of the product transfer to the supply chain 12 the next, completely filled product group G of the separating plate 8 is synchronized with the position of the receiving pocket 15 of the supply chain 12.
  • This embodiment avoids empty and incompletely filled receiving pockets 15 within the supply chain 12.
  • the packaging V can also be produced with the aid of the gripper belt 19 using individual products P instead of product groups G.
  • product group G does not necessarily have to be aligned with the outer surface.
  • the products P can also be fed to the gripper belt 19 horizontally.
  • the product can be fed in via devices other than a separating plate 8, for example by means of a belt feed, direct input in the continuously running supply chain 12, etc.
  • the formation of the product groups G does not have to be done by segmenting the separating plate 8 into individual groups.
  • the supply chain 12 does not necessarily have to be designed as a coherent 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 erection of the products P can also be controlled from the sliding wall of the receiving pocket 15 or an erection lever 16 arranged in this area.
  • the leading 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 erection.
  • the drivers 13 can also be driven by other endless, rotating 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 rolls can be driven.
  • the pivot points of the two packers of a pair of packers 22 can also be arranged offset to one another.
  • a concentric axis of rotation is not absolutely necessary. The embodiment of the gathering is thus significantly influenced.
  • the separating cut can also be made off-center between two grippers 18.
EP18179598.0A 2017-09-25 2018-06-25 Verfahren und vorrichtung zum stapelförmigen verpacken von kleinstückigen produkten Active EP3459865B1 (de)

Priority Applications (1)

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EP19208804.5A EP3632805B1 (de) 2017-09-25 2018-06-25 Vorrichtung und verfahren zum stapelförmigen verpacken von kleinstückigen produkten

Applications Claiming Priority (1)

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DE102017122195.6A DE102017122195A1 (de) 2017-09-25 2017-09-25 Verfahren zum stapelförmigen Verpacken von kleinstückigen Produkten

Related Child Applications (2)

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EP19208804.5A Division-Into EP3632805B1 (de) 2017-09-25 2018-06-25 Vorrichtung und verfahren zum stapelförmigen verpacken von kleinstückigen produkten
EP19208804.5A Division EP3632805B1 (de) 2017-09-25 2018-06-25 Vorrichtung und verfahren zum stapelförmigen verpacken von kleinstückigen produkten

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EP3459865A1 EP3459865A1 (de) 2019-03-27
EP3459865B1 true EP3459865B1 (de) 2020-07-29

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EP18179598.0A Active EP3459865B1 (de) 2017-09-25 2018-06-25 Verfahren und vorrichtung zum stapelförmigen verpacken von kleinstückigen produkten
EP19208804.5A Active EP3632805B1 (de) 2017-09-25 2018-06-25 Vorrichtung und verfahren zum stapelförmigen verpacken von kleinstückigen produkten

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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)

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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 (en) 2000-09-18 2002-03-20 Mars B.V. Method and device for packaging a food product, such as a candy, as well as a packaged candy
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

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Title
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Publication number Publication date
ES2896683T3 (es) 2022-02-25
EP3632805A1 (de) 2020-04-08
ES2822202T3 (es) 2021-04-29
EP3459865A1 (de) 2019-03-27
EP3632805B1 (de) 2021-09-29
DE102017122195A1 (de) 2019-03-28

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