EP2346676B1 - Dispositif et procede pour la transformation de produits semi-finis pour sacs et poste d'encollage pour des produits semi-finis pour sacs - Google Patents

Dispositif et procede pour la transformation de produits semi-finis pour sacs et poste d'encollage pour des produits semi-finis pour sacs Download PDF

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Publication number
EP2346676B1
EP2346676B1 EP09737435A EP09737435A EP2346676B1 EP 2346676 B1 EP2346676 B1 EP 2346676B1 EP 09737435 A EP09737435 A EP 09737435A EP 09737435 A EP09737435 A EP 09737435A EP 2346676 B1 EP2346676 B1 EP 2346676B1
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EP
European Patent Office
Prior art keywords
bag products
semifinished
gluing
semifinished bag
feeding
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
EP09737435A
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German (de)
English (en)
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EP2346676A1 (fr
Inventor
Andreas Lamkemeyer
Marco Daher
Ralf Klang
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher 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
Priority claimed from DE102008053280A external-priority patent/DE102008053280B4/de
Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Priority to EP09737435A priority Critical patent/EP2346676B1/fr
Publication of EP2346676A1 publication Critical patent/EP2346676A1/fr
Application granted granted Critical
Publication of EP2346676B1 publication Critical patent/EP2346676B1/fr
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/02—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles
    • B05C1/027—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles only at particular parts of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
    • 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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/62—Uniting opposed surfaces or edges; Taping by adhesives
    • 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
    • B31B2150/0014—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom having their openings facing transversally to the direction of movement
    • 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
    • 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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part

Definitions

  • the invention relates to a device and a method for further processing of semi-finished sacks and a sizing station for semi-finished sacks.
  • Devices for further processing of semi-finished sacks are used in the production of various types of sacks.
  • methods for further processing of semi-finished sacks is meant that at least part of the processing steps that occur between the presence of the sack material and the emergence of the finished sack, part of the process.
  • the bags produced with the overall method include, for example, the so-called valve sacks, in which valve sheets are generally inserted in the production of the bottoms.
  • the floors themselves are often designed as cross floors, as they are for example in the DE 090 145 48 U1 and the DE 3020043 A1 are shown.
  • parts of the floors are glued to each other and / or with the valve leaflets with the help of glue.
  • either the areas of the bottom folds to be bonded or the pieces of paper associated with them, that is to say all areas to be bonded together, are provided with a glue trace and then glued together by joining or folding.
  • the order of a format-suitable glue track is usually done by a mounted on a rotating roller format part in one revolution of the roller brought into contact with a glue roller or other Leim arrived- or transfer parts and thereby applied with glue.
  • the format plate transfers the glue stored on it to the respectively to be bonded areas of the later bag bottoms or the slip.
  • the format part is provided with characteristic elevations, which are adapted to a specific sack format.
  • the format parts are exchanged. This type of production of flat glue marks on semi-finished sacks has proven itself, as such large quantities, including the difficult-to-handle starch glue, can be applied cleanly and in the right format.
  • size-appropriate glue line is to be understood as an order form tailored to the type and format of the bag.
  • the order within this order form is usually flat, often the edges of the mold is of particular importance for the durability and tightness of the bags.
  • the object of the present invention is to improve the quality of the bags glued in a bottoming device provided with at least one application head and to reduce the reject rate.
  • the object is achieved by a features of the characterizing part of claim 1 are attached to a Bodenlegevoriques with the features of the preamble of claim 1.
  • semi-finished sacks are components of sacks needed for their production.
  • these include pieces of tubing, and all sorts of slips, the term note here is also to include ground cover sheets.
  • These semi-finished sacks are - strictly speaking - components of hose pieces, as they do not yet have laid and glued floors.
  • Bodenlegevorraumen provided hose pieces with sack bottoms.
  • a gun is a glue application tool.
  • This glue application tool is usually - as in the aforementioned publications EP 1 648 688 B1 and DE 103 09 893 A1 shown - not rotated, but it is silent during the glue application, while the respective semi-finished sack is guided past the gun.
  • variable Leirn Committees Often can be generated with such guns variable Leirn réellesric. This can be done, inter alia, by the connection of valves or by changing the application width of a slot die.
  • a guide element in the sense of the present document is any element which is involved in the transport of the semi-finished sacks in the area in question a Bodenlegevorraum.
  • belts, rollers, rods and sheets are involved in the transport and the guidance. In the functional context in question, however, it is mainly those areas of the semi-finished sack that are to be glued.
  • the guide element will at least partially be in an operative relationship with the feed element.
  • the feed element and the guide element define the feed area of the semi-finished sack to the gluing point (location or area of the glue transfer). This feed advantageously also leads parts of the semi-finished sack, which are glued later and / or parts that are not glued.
  • the still unpublished German patent application with the file number 10 2007 057 820 shows a Bodenlegevorraum whose Beleimungsstation has an applicator head, the glue valves - for applying a glue trace on the semi-finished sacks - includes.
  • the sack semi-finished products to be glued here are fed to the gluing station with a transport device, wherein the sack components are hitched to the application head with the aid of a suitable countermeasure, so that the starch glues common in sack production are taken or taken off in uniform form from the sack components.
  • the teaching of the present document can be very well combined with this teaching.
  • inventive measures of the present document also meet the task, if no counterclaim as in the unpublished German patent application with the file number 10 2007 057 820 is present and if, for example, a gun sprayed on the glue and incomplete glue application is avoided on bent places.
  • the semi-finished sacks between a tether or a support rod - which or on one side mostly rests centrally on the semi-finished sacks - and a mecanicselement- which on the other side of the Sack semi-finished is -, for example, a table top, out. From the tabletop are only the areas where the semi-finished sack enters the work area of a processing station, for example in the field of a scoring station and an embossing device (will be described below).
  • the processing stations also contain (specific) guide elements for the semi-finished sacks.
  • the area between tether and support element (Tabletop or processing station support element) is called guide region of the semi-finished sack.
  • the semi-finished sacks Before the semi-finished sacks are fed to the gluing station, they usually pass through a scoring station.
  • some areas of the semi-finished sacks are provided with a grooving to facilitate a later folding the same.
  • a grooving For cross floors, for example, two creases are made above and below the ground center line. The area between the respective score lines and the outer edge of the cross bottom is called the bottom flap.
  • the creases allow the bottom flaps - after gluing - to be folded back along the crease line. After grooving, the bottom flaps are no longer in the same plane as the area between the score lines. The expert calls this "standing" of the bottom flaps.
  • At least one feeding element is provided, which is arranged upstream of the gluing place in the transporting direction of the sacks.
  • This feed element defines together with the at least one guide element (often a table top) a feed region of the semi-finished sacks to the gluing gap, which tapers in the transport direction of the semi-finished sacks.
  • the at least one gluing station can be a gluing station for gluing the bottom provided with a valve flap.
  • the gluing station is suitable for gluing the bottom of the sack by its nature. Their retrofitting in a Bodenlegevorraum is ensured by a variety of mechanical and electrical interfaces to the relevant Bodenlegevortechnisch.
  • a gluing station can be constructed so that the means of transport, which leads semi-finished sacks through the retrofitted floor layer, can also reach through the gluing station.
  • a particularly preferred embodiment of the invention includes a further gap, preferably a nip, which is upstream of the feed element and the gluing gap in the transport direction of the bags and in which at least a portion of the surfaces to be glued with pressure can be acted upon.
  • the pair of rollers which forms this further nip is also called an embossing device. At least one roller of the roller pair can be driven separately. As it passes through the pre-embossing device, for example, the "protrusion" of the bottom flaps (previously caused by the scoring) is weakened by crimping the semi-finished sacks (within their original plane) in the nip.
  • the semi-finished bag which has passed through the pre-embossing device, again guided between the table top and a tether.
  • the distance between the table top and the holding strap is greater than the nip of the pre-embossing device.
  • only a part of the surface of the bottom square is guided between the table top and tether. For this reason, the guide area for the semi-finished sacks initially expands considerably after the pre-embossing device, in order to rejuvenate in the area of the feed element.
  • the expansion after the pre-embossing device is one hundred times the nip of the pre-embossing device, but preferably ten to fifty times.
  • the sack semi-finished product is usually guided without the strength of the guide region changing in the transport direction (for example, no taper).
  • the angle which the at least one guide element and the at least one feed element enclose with one another, in the tapered region between 1 ° and 45 ° is advantageously between 3 ° and 15 °. In a particularly advantageous embodiment of the invention, however, the angle is about 10 °.
  • the feed element is elastic. This means that the supply element is flexible under force and takes its original form after the end of the force.
  • the feed advantageously consists of sheet metal, advantageously made of spring steel sheet.
  • the gluing station comprises at least two glue application heads.
  • a feed element is also provided per glue application head.
  • the gluing station therefore comprises at least two feed elements for gluing an open bottom square.
  • the at least one feed element and / or the at least one guide element at the level of the feed element in the transport direction of the semi-finished sacks with recesses which it allow to detect whether there is unwanted material in the feed of the semi-finished sacks to the application head or to the gluing point. Often components of defective semi-finished sacks form such unwanted material.
  • a spreading of the semi-finished sacks before or in the feed appears advantageous.
  • the delimiting elements of the feed area itself such as the feed element and / or the guide element, have surface structures such as slots, grooves or elevations which convey the corresponding spreading force to the semi-finished sacks when they move in the transport direction.
  • the force should act away from the mid-ground line.
  • the recesses similar to the slots, grooves or elevations - lead away in the transport direction of the semi-finished sacks from the bottom center line, when the feeding element supplies unfolded bottom squares.
  • a gluing station according to the invention which has at least one counter-layer and a feed element which tapers in the transport direction of the semi-finished sacks, should be designed such that it can be retrofitted to ground levelers of the state of the art.
  • FIG. 1 shows a sketch of a first embodiment of a gluing unit 1 according to the invention, to which sack components 2 are fed in the direction of movement z.
  • Decisive part of the gluing unit 1 is the applicator head 3 with the nozzle bar 4, which counteracts the counter-5 mechanically.
  • the counter-5 is designed as a rotating roller, the active surface 6, which is in contact with the back 7 of the bag component 2 and this 2 provides the required for employment on the nozzle bar force is at each revolution of the counter-5 of the doctor device 8 with the Doctor blade 9 doctored off.
  • FIG. 2 shows a different view of the counter 5 of the FIG. 2 , which shows that the active surface 6 is divided by slots 10 into surface segments 11. This subdivision makes possible a better sizing of sack components whose surfaces are textured and have a characteristic topography with significant height differences.
  • the configured as a roller counter 5 has pins 13, where they can be stored 5.
  • FIG. 3 another embodiment of a Beleimungsstation invention is shown, which also has a gun 3 with a nozzle bar 4, with which the bag components 2 are glued.
  • the angle ⁇ is the angle at which the sack components run into the gluing nip 12 formed by the nozzle bar 4 and the counter-layer 5.
  • the counter 5 is in FIG. 3 Stylized and can be seen in the FIGS. 4 . 5 . 6 and 11 be realized represented form.
  • the bands 14 are those elements that define the active surface 6 of the counter 5. Those surface components of the bands 14 which come into contact with the sack components 2 when they are passed over the bands 14 in this case form the effective surface 6.
  • the bands may be guitar strings which, as in FIG. 4 are aligned substantially parallel to each other and are under a certain (low) mechanical stress.
  • the guitar strings or bands 14 are hinged to the legs 15. It is also advantageous in this embodiment to align the bands along the direction of travel of the sack components.
  • the active surface 6 formed by the bands 14 is already segmented because the bands are spaced from each other.
  • FIG. 6 shows another Beleimungsstation with another counter-5, which again has bands 14, the sack components 2 contacting surface constituents form the active surface 6.
  • the bands are guided by the guide rollers 16 and in the direction of movement of the z Sack components 2 moves.
  • the thus guided bands are doctored off again by the doctor device 8 with the doctor blade 9.
  • the FIG. 5 shows the effective surface 5 formed by the bands 14 running on the guide rollers 16 from the viewpoint of the application head 5.
  • FIG. 7 shows the bottom 17 of a Buch Guineaventilsackes 18.
  • the figure should be clarified that the folding and material edges of such a bag bottom have height differences. In view of these height differences, the application of the counter-layers 5 shown here is particularly advantageous.
  • FIG. 8 a counter-5 is shown, which consists essentially of a roller.
  • This roller has a segmented active surface 6, which is divided by slots 10 into surface segments 11.
  • the surface segments consist of an elastic material which covers the lateral surface of the roller 9 serving as an abutment 9.
  • the roller has a clamping strip 19, which can define a sack component - especially a slip - on the roll surface.
  • the possible clamping movement of the terminal block 19 is from the arrow 21 in FIG. 10 shown.
  • FIG. 9 shows how a piece of paper 20 is transported on the active surface 6 of the counter-5.
  • FIG. 11 shows from the point of view of the nozzle head 5, a further active surface 6 with surface segments 11, which are delimited by the slots 10.
  • the bag components 2 facing surface of the bag components 2 is flexible.
  • the surface segments themselves are employed by spring elements on the side facing away from the bag component against the bag component. Also in this way a point-elastic adjustment of the bag components against the nozzle bar 4 is achieved.
  • the various active surfaces 6, which are composed of surface components of bands 14 it is to be said that the point elasticity is achieved, above all, when the bands 14 are oriented transversely to a line-shaped nozzle strip 4.
  • FIG. 12 Another possibility is indicated to guide the sack components 2 in a gluing unit 1.
  • a counter 5, the counter 5 from the FIGS. 5 and 6 largely corresponds, shown from the viewpoint of the application head 3.
  • the bands 21 are shown, which are located from the viewpoint of the nozzle head in front of the bands 14 of the counter-layer.
  • the sack components 2 between the belts 14 and 21 are fixed. Both types of bands are movable in the transport direction, so that the sack components are carried between the largely synchronously running bands.
  • the bands 21 are displaceable in their position in the direction x transverse to the transport direction z of the bag components 1. The mobility is ensured with customary measures, such as a slidable suspension of the rollers that guide the bands.
  • FIG. 13 shows a sketch of the semi-finished bag transport in the region of the gluing gap 43 in a ground-laying device 64 according to the invention.
  • the semi-finished sacks 24 are transported in the conveying direction z.
  • the bottom of the bag 17 is raised in the bottom opening station.
  • the bottom flaps 47 of the raised bottom squares 51 are now guided along the transport path 50 between the guide element 25 and the holding band 32 through d.
  • An exception to this type of guidance are only the areas of the individual processing stations 26,27,3. In general, however, the force for the transport of the tube pieces 24 is applied by the transport belt 42.
  • the semi-finished sacks 24 enter the scoring station 26.
  • the bottom flaps 29 of the sack 17 produced by the scoring are in Roll nip 63 of the Vorgargevorraum 27 smoothed.
  • the bottom flaps 47 pass into the feed section 41 of the feed element 33 that tapers toward the gluing gap 43 of the gluing device 3.
  • the feed element encloses an angle ⁇ with the guide element 25 of the semi-finished sacks 24.
  • the angle ⁇ and the length of the feed element must be selected so that the bottom flaps of the bottom of the bag can run without contact into the feed region 41 of the feed element 33 and the triangular pockets are pressed as slowly as possible onto the feed element 33. Therefore, the angle ⁇ in the embodiment shown here is between 5 ° and 12 ° and the length of the feed element is between 200 mm and 300 mm.
  • FIG. 14 shows the section FIG. 13 which is located in the dashed rectangle 48.
  • a guide element 25 may be any device component that guides or transports semi-finished sacks 24 to the application head 3.
  • the guide member 25 is a tabletop.
  • the guide region 65 is the region of the bottom layer 64 in which parts of the unfolded bottom square 51 are guided. This area 65 thus extends in the transport direction from the bottom opening station 40 to the not shown assignment of the bag bottom.
  • the strength of this region 65 is the distance between the guide elements, which include the semi-finished sacks when guiding, there (usually in the x or y direction). Large parts of the guide area 65 are identical to the transport path 50 of the bottom flaps 47.
  • FIG. 15 shows the viewing area 55 (FIG. FIG. 13 ) from which by the arrows 54 ( FIG. 13 ) sketched perspective.
  • the unfolded bottom square 51 of a semi-finished bag 24 was in FIG. 15 Not shown.
  • the further transport of the semi-finished bag or the way the bottom center line 28 through the gluing station is represented by the dashed line 56 (transport path of the bottom center line 28) , From the gluing station, only the guide element 33 and the application head 2 can be seen.
  • the recesses or slots 44 point away from the bottom centerline 28.
  • the longitudinal axis 66 of the recesses or slots 44 includes with the bag bottom center line 28 an angle ⁇ .
  • the angle ⁇ is approximately between 0 ° and 10 °, preferably between 3 ° and 8 °.
  • the width 67 of the recesses and slots 44 is approximately between 3 mm and 20 mm, advantageously, however, between 4 and 12 mm.
  • the recesses 44 impart to the bottom flaps 47, when transported in the z direction, a force pointing away from the bottom center line. This force F tightens the semi-finished sacks 24 and is advantageous. In general, it is positively noticeable when the spreading force F is imparted in the feed area 41. This can be done by the surface structure of the elements 33, 25 delimiting the feed area 41.
  • FIG. 16 the mode of transport of the semi-finished sacks 24 between the bottom opening station 40 and the place where the glued bottom squares 51 are added, is shown.
  • Viewing direction 53 and viewing plane 52, which the FIG. 16 underlying are in FIG. 13 shown.
  • the bottom flaps 47 of the open bottom squares 51 are raised and guided by the guide elements 25.
  • On the right side of the FIG. 16 a valve sheet 57 is placed on the bottom square 51.
  • the Ventilzettelbeleimungsstation performing this activity is shown in any figure.
  • the holding and conveyor belt 32 is provided.
  • the guide rollers for this band 32 bear the reference numeral 62.
  • FIG. 16 was omitted to represent machine elements that are behind the viewing plane 52. An exception is the leading edges of the feed element 33 shown. Therefore, it can be seen that the feed elements 33 have their effective range, especially in the area of the bottom flaps 47 of the unfolded bottom square 51. It should be noted that the distances between the bottom flaps 47, valve leaflets 57, guide elements 25, guide strips 32, etc. are shown exaggerated for illustrative reasons. In FIG. 16 feeding elements 33 were shown on both sides of the semi-finished sacks 24 (bottom of the valve and floor). It may also be useful to provide feed elements 33 only on the valve bottom side 59.
  • FIG. 16 can also be seen that the central region of the semi-finished bag 24 - here the area of the piece of tubing, which later forms the bag walls - in the illustrated mode of transport between the conveyor belts 42nd is merged.
  • the conveyor belts 42 usually transfer the force necessary for transporting the semi-finished sacks 24.
  • the holding and transport belt 32 may also be driven.

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Abstract

L'invention concerne un dispositif (64) et un procédé pour la transformation de produits semi-finis pour sacs (24), ainsi qu'un poste d'encollage (3,4) pour des produits semi-finis pour sacs. L'expérience a montré que, en particulier, les produits semi-finis pour sacs à structure plus complexe, tels que les tubes à carrés de fond dépliés et en particulier à carrés de fond dépliés et feuilles de valve déjà insérées, ont tendance à être encollés de manière incomplète et sont même endommagés dans une fente de buse lors de l'encollage. Pour résoudre ce problème, on place en amont de la fente d'encollage dans le sens de transport des produits semi-finis pour sacs au moins un élément d'amenée (33) qui définit, en combinaison avec l'élément de guidage (33), une zone d'amenée (41) des produits semi-finis pour sacs à la tête d'application. Au moins des composants des produits semi-finis pour sacs peuvent être guidés à travers cette zone d'amenée qui se rétrécit dans le sens de transport (Z) des produits semi-finis pour sacs.

Claims (15)

  1. Dispositif (64) pour la transformation de produits semi-finis pour sacs (24), de préférence dispositif d'application de fonds pour sacs à valve à fond croisé (18),
    - qui comprend au moins un poste d'encollage (3, 4) avec au moins une tête d'application de colle (3),
    - au moins un moyen de transport (42, 32) avec lequel des produits semi-finis pour sacs (24) peuvent être acheminés au poste d'encollage (3, 4) dans une direction de transport (z) et peuvent être alors avancés devant la tête d'application de colle (3),
    caractérisé par
    - au moins un élément d'alimentation (33) qui est monté avant la fente d'encollage (43) dans la direction de transport (z) des produits semi-finis pour sacs (24),
    - et qui définit conjointement avec un élément de guidage (25) une région d'alimentation (41) des produits semi-finis pour sacs (24) à la tête d'application (3),
    - à travers laquelle région d'alimentation (41) au moins des constituants (47, 61) des produits semi-finis pour sacs (24) peuvent être guidés,
    - et laquelle région d'alimentation (41) se rétrécit dans la direction de transport (z) des produits semi-finis pour sacs (24).
  2. Dispositif selon la revendication 1,
    caractérisé par
    au moins un contre-appui (5), lequel (5) forme conjointement avec la tête d'application de colle (3) une fente d'encollage (43), dans laquelle (43) les produits semi-finis pour sacs (24) peuvent être encollés lors de leur passage devant la tête d'application (3).
  3. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'au moins un poste d'encollage (3, 4) est un poste d'encollage pour l'encollage du fond du sac (17) pourvu d'un volet (20, 51).
  4. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé par
    une fente supplémentaire (63), de préférence une fente à rouleaux, qui est montée avant l'élément d'alimentation (33) et la fente d'encollage (43) dans la direction de transport des produits semi-finis pour sacs (24), et dans laquelle (63) au moins une partie des surfaces à encoller peut être sollicitée en pression.
  5. Dispositif selon la revendication précédente,
    caractérisé par
    une région de guidage (65) pour les produits semi-finis pour sacs (24), qui s'élargit fortement dans la direction de transport (z) des produits semi-finis pour sacs (24) après la fente supplémentaire (63), pour ensuite se rétrécir dans la région de l'élément d'alimentation (33).
  6. Dispositif selon l'une quelconque des deux revendications précédentes,
    caractérisé par
    une région de guidage (65) pour les produits semi-finis pour sacs (24), dont l'épaisseur ne varie pas sur une certaine distance dans la direction de transport (50) des produits semi-finis pour sacs (24) avant la fente supplémentaire (63) dans la région des régions à encoller.
  7. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'angle (ß) formé par l'élément de guidage (25) et l'élément d'alimentation (33), dans la région (41) se rétrécissant, est compris entre 0° et 15°, avantageusement toutefois entre 0° et 10°.
  8. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'au moins un poste d'encollage (3, 4) est prévu pour l'encollage d'un parallélogramme ouvert formant le fond (51), et en ce qu'au moins deux éléments d'alimentation (33) sont prévus.
  9. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément d'alimentation (33) est flexible sous l'application d'une force et à la fin de l'application de la force, reprend sa forme ou sa position initiale.
  10. Dispositif selon la revendication précédente,
    caractérisé en ce que
    l'élément d'alimentation (33) est en tôle ou en acier inoxydable.
  11. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément d'alimentation (33) et/ou l'élément de guidage (25) présentent des évidements (44) tels que des fentes, des trous ou des trous oblongs.
  12. Poste d'encollage (3, 4) pour produits semi-finis pour sacs (24), de préférence pour l'installation dans des dispositifs d'application de fonds pour sacs à valve à fond croisé (18),
    - qui comprend au moins une tête d'application de colle (3),
    - qui présente au moins un moyen de transport (42, 32) avec lequel des produits semi-finis pour sacs (24) peuvent être acheminés au poste d'encollage (3, 4) dans une direction de transport (z) et peuvent être alors avancés devant la tête d'application de colle (3),
    caractérisé par
    - au moins un élément d'alimentation (33) qui est monté avant la fente d'encollage (43) dans la direction de transport (z) des sacs, et qui définit conjointement avec un élément de guidage (25) une région d'alimentation (41) des produits semi-finis pour sacs (24) à la fente d'encollage (43),
    - à travers laquelle région d'alimentation (41) au moins des constituants (47, 61) des produits semi-finis pour sacs (24) peuvent être guidés,
    - et laquelle région d'alimentation (41) se rétrécit dans la direction de transport (z) des produits semi-finis pour sacs (24).
  13. Procédé pour la transformation de produits semi-finis pour sacs (24), de préférence dispositif d'application de fonds (64) pour sacs à valve à fond croisé (18),
    - lequel (64) comprend au moins un poste d'encollage (3, 4) avec au moins une tête d'application de colle (3),
    - des produits semi-finis pour sacs (24) étant acheminés au poste d'encollage (3, 4) en utilisant au moins un moyen de transport (42) et passant alors devant la tête d'application de colle (3),
    caractérisé en ce
    - qu'au moins des parties (47, 61) des produits semi-finis pour sacs (24) sont acheminées à la tête d'application (3) à travers une région d'alimentation (41),
    - et en ce qu'au moins des parties des produits semi-finis pour sacs (24), lors du passage à travers la région d'alimentation (41), sont exposées à une pression croissante, qui agit transversalement à sa direction de transport.
  14. Procédé selon la revendication précédente,
    caractérisé en ce
    qu'au moins des parties (47, 61) des produits semi-finis pour sacs (24) sont élargies par étirement dans la région d'alimentation (41) - de préférence dans une direction (y) transversalement à la direction de transport (z).
  15. Procédé selon la revendication précédente,
    caractérisé en ce que
    les parties des produits semi-finis pour sacs (24) qui ont été élargies par étirement sont des volets de fond (47), et en ce qu'elles sont étirées dans la direction de l'extrémité extérieure du volet de fond (47).
EP09737435A 2008-10-27 2009-10-22 Dispositif et procede pour la transformation de produits semi-finis pour sacs et poste d'encollage pour des produits semi-finis pour sacs Active EP2346676B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09737435A EP2346676B1 (fr) 2008-10-27 2009-10-22 Dispositif et procede pour la transformation de produits semi-finis pour sacs et poste d'encollage pour des produits semi-finis pour sacs

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102008053280A DE102008053280B4 (de) 2008-10-27 2008-10-27 Vorrichtung und ein Verfahren zur Weiterverarbeitung von Sackhalbzeugen sowie Beleimungsstation für Sackhalbzeuge
EP08167751 2008-10-28
PCT/EP2009/063842 WO2010049335A1 (fr) 2008-10-27 2009-10-22 Dispositif et procédé pour la transformation de produits semi-finis pour sacs et poste d'encollage pour des produits semi-finis pour sacs
EP09737435A EP2346676B1 (fr) 2008-10-27 2009-10-22 Dispositif et procede pour la transformation de produits semi-finis pour sacs et poste d'encollage pour des produits semi-finis pour sacs

Publications (2)

Publication Number Publication Date
EP2346676A1 EP2346676A1 (fr) 2011-07-27
EP2346676B1 true EP2346676B1 (fr) 2012-08-08

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Country Status (4)

Country Link
US (1) US9545768B2 (fr)
EP (1) EP2346676B1 (fr)
JP (1) JP5638530B2 (fr)
WO (1) WO2010049335A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT515608B1 (de) * 2014-04-03 2016-06-15 Worff Herwig Dipl Ing Vorrichtung zum Verschließen von Säcken aus Gewebe
WO2016043157A1 (fr) * 2014-09-17 2016-03-24 株式会社フジシールインターナショナル Procédé de fabrication de matériau d'emballage de récipient de type sachet, procédé de fabrication de récipient de type sachet, matériau d'emballage de récipient de type sachet, et récipient de type sachet
CN113895134B (zh) * 2021-11-24 2023-09-26 惠州市德赛自动化技术有限公司 贴合设备

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE37448C (de) W. E. hale in Chicago, V. St. A Neuerung an der unter Nr. 35842 patentirten Gaskraftmaschine
DE1753634B2 (de) * 1963-04-11 1971-10-14 Verfahren klebstoff und vorrichtung zum bilden eines kreuz bodens an einem schlauchstueck zur herstellung eines kreuz bodensackes
DE1461881A1 (de) 1964-03-28 1969-04-10 Mahlkuch Greif Werk Ernst Maschine zum Fuellen und Verschliessen von Kunststoffsaecken
DE3020043A1 (de) 1980-05-24 1981-12-03 Bischof Und Klein Gmbh & Co, 4540 Lengerich Kreuzbodensack
DE8133360U1 (de) 1981-11-14 1982-04-08 Doboy Verpackungsmaschinen Gmbh, 2000 Schenefeld Sackverschließmaschine
JPH0649488B2 (ja) * 1989-10-11 1994-06-29 株式会社フジキカイ 糊付装置
DE9014548U1 (de) 1990-10-20 1991-01-03 Bischof Und Klein Gmbh & Co, 4540 Lengerich Flexibles Verpackungsbehältnis in Form eines Ventilsackes oder -beutels
US5558612A (en) * 1992-02-20 1996-09-24 Winkler & Duennebier Maschinenfabrik Und Eisengiesserei Kg Apparatus for the continuous production of an article of manufacture, such as envelopes
JP2576082B2 (ja) 1992-04-13 1997-01-29 株式会社ニューパック 角底袋製袋機
FR2770907A1 (fr) 1997-11-11 1999-05-14 Windmoeller & Hoelscher Procede de verification des applications de colle sur les fonds ouverts de sacs ou sachets
JP3574085B2 (ja) * 2001-04-05 2004-10-06 株式会社小野木製袋 枚葉製袋機
ES2321604T3 (es) * 2002-09-13 2009-06-09 WINDMOLLER & HOLSCHER KG Dispositivo para la colocacion de fondos para sacos de papel.
DE10309893B4 (de) 2002-09-13 2019-05-23 Windmöller & Hölscher Kg Bodenlegevorrichtung für Papiersäcke sowie Verfahren zum Betrieb einer Bodenlegevorrichtung
DE10255486B4 (de) 2002-11-27 2004-09-16 Windmöller & Hölscher Kg Beleimungsstation in einer Bodenlegevorrichtung
DE10330750B4 (de) 2003-07-07 2005-09-15 Windmöller & Hölscher Kg Bodenlegevorrichtung für Papiersäcke
DE102007057820C5 (de) 2007-11-30 2020-07-16 Windmöller & Hölscher Kg Gegenlage Düsenbeleimung

Also Published As

Publication number Publication date
US20110259516A1 (en) 2011-10-27
JP5638530B2 (ja) 2014-12-10
US9545768B2 (en) 2017-01-17
EP2346676A1 (fr) 2011-07-27
JP2012506795A (ja) 2012-03-22
WO2010049335A1 (fr) 2010-05-06

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