EP2392409A1 - Device for applying glue to areas of paper or plastic sheets or paper or plastic sheet sections and method for producing same - Google Patents
Device for applying glue to areas of paper or plastic sheets or paper or plastic sheet sections and method for producing same Download PDFInfo
- Publication number
- EP2392409A1 EP2392409A1 EP11168252A EP11168252A EP2392409A1 EP 2392409 A1 EP2392409 A1 EP 2392409A1 EP 11168252 A EP11168252 A EP 11168252A EP 11168252 A EP11168252 A EP 11168252A EP 2392409 A1 EP2392409 A1 EP 2392409A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- glue
- paper
- nozzle unit
- plunger
- counter element
- 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.)
- Granted
Links
- 239000003292 glue Substances 0.000 title claims abstract description 111
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000000123 paper Substances 0.000 title abstract 4
- 239000002985 plastic film Substances 0.000 title abstract 3
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000004033 plastic Substances 0.000 claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000005553 drilling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000834 fixative Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
Images
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
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
- B05C5/0275—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve
- B05C5/0279—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve independently, e.g. individually, flow controlled
-
- 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
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3013—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being a lift valve
- B05B1/302—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being a lift valve with a ball-shaped valve member
-
- 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
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0208—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles
- B05C5/0212—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles only at particular parts of the articles
- B05C5/0216—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles only at particular parts of the articles by relative movement of article and outlet according to a predetermined path
-
- 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
- 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
- Y10T156/1798—Surface bonding means and/or assemblymeans with work feeding or handling means with liquid adhesive or adhesive activator applying means
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/494—Fluidic or fluid actuated device making
Definitions
- the invention relates to a device for applying glue to areas of paper or plastic webs or paper or plastic web sections according to the preamble of claim 1 and to a method for their production according to the preamble of claim 12.
- a tube is formed from one or more webs which initially form a multilayer web, one or more glue tracks being applied longitudinally to the regions of the web which are subsequently overlapped with other regions of the web (so-called tube formation).
- the webs may be made of paper and / or plastic. From the tube formed pieces of tubing are isolated, are molded to the later soils, in turn, for the bonding of the floors adhesive is applied to parts of these pieces of hose.
- starch glue is often used. In the following parts of this application, therefore, the word glue is used instead of the word adhesive, without thereby limiting the subject matter of the invention.
- Each glue valve in this case comprises at least one plunger with a sealing head, which can be changed in its position.
- This sealing head cooperates with a counter element.
- the sealing head can enter into a sealing contact with the counter element, so that no glue can pass past the sealing head through the counter element.
- the glue valve is opened and the glue can enter the glue feed line.
- the nozzle unit is often constructed in two parts, wherein in a nozzle plate usually the glue outlet openings and Leimzufilm Gustaven are introduced.
- the nozzle head often carries the glue valves as well as the glue chamber.
- a disadvantage of arrangements according to the prior art is that prefabricated glue valves are arranged on the nozzle unit.
- the nozzle unit must be provided for each valve with different holes, which can first lead the glue from the glue chamber to the surface of the nozzle unit on which the glue valve is arranged, and then the glue from the valve to or to the respective glue outlet openings leads.
- the introduction of holes in the nozzle unit is always associated with high costs.
- prefabricated glue valves are expensive.
- the object of the present invention is therefore to provide an apparatus and a method with which costs can be saved.
- the counter element of a glue valve is arranged in or in the immediate vicinity of the glue chamber.
- the counter-element can be arranged, for example, in the transition region between the glue chamber and the glue supply line or be formed by this transition region. Since the sealing head cooperates with the counter element, it is therefore possible to speak of a valve integrated in the glue chamber.
- the glue lines which bring the glue from the glue chamber to the valves. This significantly reduces the number of holes in the nozzle unit, which has a cost-saving effect.
- no separate housing with a separate chamber is needed for the valves themselves. By saving glue-carrying lines also reduces the maintenance, especially the cleaning effort.
- the valves are now integrated in the nozzle unit, results in a smaller, more compact size of the entire nozzle unit.
- the counter element is designed as an independent component and is introduced into the transition region between the glue chamber and the glue feed line.
- the counter element can be easily replaced when it comes to leaks in the valve, for example, due to wear.
- the counter element can be sealed against the glue supply line with a sealant, such as an O-ring.
- the counter-element is cylindrical or disc-shaped with a thread formed on its outer surface and screwed into a provided with an internal thread and introduced into the Leimzu meltschreib bore. This embodiment makes especially the assembly easier and thus cheaper.
- the counter element is provided at one of its ends, preferably at the end facing the glue chamber, with a hexagon socket.
- the bottom of this hexagonal recess can be provided the contact surface for the sealing head. Within the contact surface then the passage for the glue is provided.
- the plunger extends at least partially through the glue chamber. This allows a space-saving arrangement of the ram moving drive.
- the plunger is displaceable by means of an electromagnetic displacement drive.
- the plunger may comprise magnetic or magnetizable elements which are surrounded by a coil, with which a switchable magnetic field can be generated.
- the electromechanical displacement drive is arranged diametrically opposite the counter element.
- the plunger cuts the axis of the glue chamber, if this has a round cross-section. In a different cross-section, the plunger cuts the axis of the cylinder, which can be inscribed in the glue chamber.
- the extension directions of the plunger of two glue valves are arranged rotated against each other about the axis of the glue chamber.
- this concerns two adjacent valves these can be placed close to each other despite the spatial extent, especially of the ram moving drives, so that the largest possible number of glue outlet openings per unit length can be provided.
- two adjacent valves may be rotated 30 degrees from each other.
- the nozzle unit may at least partially consist of plastic. This can on the one hand simplify the production, on the other hand, this material is inexpensive. Of particular advantage, however, is that such a material does not transmit the magnetic field generated by the electromagnetic displacement drive of one valve to an adjacent valve as much as is the case, for example, in a metallic environment.
- the nozzle unit may further comprise a plurality of individual segments. Such a segment may be associated with a small number of valves. It is advantageous to assign a single valve to each segment. However, it can also be advantageous to assign several valves to each segment. Thus, so many valves can be provided until the arrangement pattern repeats with respect to the mutual pivoting of the valves. For example, if three valves are pivoted against each other and corresponds to the Verschwenkungswinkel the fourth valve that of the first valve, so three valves per segment should be provided. In a segmentation of the nozzle unit, the segments can be produced very inexpensively, since they are identical. Depending on the desired size of the nozzle unit now only a corresponding number of segments needs to be strung together.
- each segment comprises a component of the glue chamber, these glue chamber parts of the segments being congruent.
- These glue chamber parts can then be designed as simple transverse bores within the segments. This has the consequence that between two segments each a sealing element should be provided.
- the segments can be fastened to each other.
- the segments may be provided with through holes through which threaded rods or other traction means are pluggable. With this traction means and corresponding fixatives such as nuts, the individual Segments pressed against each other.
- the respective outer segments may be provided on their outer end faces with end elements for the glue chamber.
- Fig. 1 shows a section through the nozzle unit 1 of a device according to the invention.
- the central element of this nozzle unit 1 is the glue chamber 2, which extends transversely to the transport direction x of the workpieces, not shown.
- From the glue chamber 2 branch off several glue supply lines 3, which open into glue outlet openings 4.
- glue outlet openings are shown arranged at different positions in the direction x, but this essentially serves for a better overview.
- the glue entry openings 4 may also be arranged deviating therefrom, for example on a line transverse to the direction x.
- a valve 5, 6, 7 is assigned, with which the glue flow through the associated glue supply lines 3 can be produced or interrupted.
- Each of these valves comprises for this purpose a plunger 8, 9, 10, which are movable by not shown drives in their extension directions.
- Each plunger comprises a sealing head which cooperates with a counter-element 11, 12, 13 in the manner described below.
- the individual valves can be rotated against each other.
- the example of the valves 5 and 6 is the FIG. 1 can be seen that by this arrangement, the directions of extension of the plunger 8 and 9 assume an angle ⁇ to each other.
- This angle ⁇ may, for example, assume a value of 30 to 60 degrees, especially 45 degrees.
- the FIG. 2 shows a section through a section of the FIG. 1 , It shows the valve 6 with the plunger 9.
- the valve 6 comprises a housing 14 which is fixedly connected to the nozzle unit 1, for example screwed. For this purpose, a bore 21 is introduced into the nozzle unit.
- the valve can also be integrated without housing in the nozzle unit 1, which is not shown.
- the plunger 9 carries a sealing head 15, which is spherical. This fits into a spherical shell-shaped recess 16 which is introduced into the counter-element 12. In this recess, an opening 17 is introduced, which represents a connection from the glue chamber 2 to the glue supply line 3.
- the sealing head 15 - as it is in the FIG. 2 is shown - in contact with the recess, this opening 17 is closed, and it can not get any glue in the Leimzushelltechnisch 3.
- the counter-element 12 is cylindrical or disc-shaped and carries on its outer surface an external thread 18, via which the counter-element 12 is screwed into the thread 19 of a bore 20.
- This bore 20 is advantageously smaller in its diameter than the bore 21 through which the valve 6 extends.
- an O-ring 22 may be provided which in the FIG. 3 is shown. Other sealing elements are also conceivable.
- FIG. 3 now shows the valve 6 in the open state, wherein the plunger 9 has been moved away from the counter element 12, so that the opening 17 is now released and thus a glue flow from the glue chamber 1 was prepared in the glue supply 3.
- a coil 23 is provided which encloses a guide 24, in which the plunger 9 is guided.
- Another Guide 25 may be provided.
- the guide 24 is closed relative to the interior of the housing 14, in which the coil is located, so that no glue from the glue chamber 2 or the bore 21 can enter the interior of the coil.
- FIG. 4 shows the view IV - IV of FIG. 3 ,
- the recess 16 is inserted into a recess 25, which in turn is formed in the plan view as a hexagon.
- This recess thus forms a hexagon socket, which makes it possible to screw the counter element with commercially available tools in a simple manner in the bore 20.
- FIG. 5 now shows the view VV FIG. 1 , It should be emphasized that it is only one of many possibilities for the design of the nozzle unit 1 of FIG. 1 is.
- the valves 5, 6, 7 are arranged on a respective segment 26, 27 and 28.
- This embodiment is advantageous because all segments are identical. Several segments can be assembled into a nozzle unit and, as described above, connected together. The nozzle unit is thus modular and can even be adapted later to the respective needs.
- FIG. 6 shows another example of a segmented nozzle unit 1.
- the segments 29 each carry only one valve, so that the length of the nozzle unit is variable in even smaller steps.
- not all segments need to carry the same number of valves. This may vary as it is in the FIG. 6 is also shown.
Landscapes
- Coating Apparatus (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Auftragen von Leim auf Bereiche von Papier- oder Kunststoffbahnen oder Papier- oder Kunststoffbahnabschnitten nach dem Oberbegriff des Anspruchs 1 sowie ein Verfahren zu ihrer Herstellung nach dem Oberbegriff des Anspruchs 12.The invention relates to a device for applying glue to areas of paper or plastic webs or paper or plastic web sections according to the preamble of
Eine eingangs erwähnte Vorrichtung ist in der Anmeldung
In der
Die Düseneinheit ist oft zweiteilig aufgebaut, wobei in einer Düsenplatte in der Regel die Leimaustrittsöffnungen und Leimzuführleitungen eingebracht sind. Der Düsenkopf trägt oft die Leimventile sowie die Leimkammer.The nozzle unit is often constructed in two parts, wherein in a nozzle plate usually the glue outlet openings and Leimzuführleitungen are introduced. The nozzle head often carries the glue valves as well as the glue chamber.
Nachteilig bei Anordnungen nach dem Stand der Technik ist, dass vorgefertigte Leimventile an der Düseneinheit angeordnet werden. Die Düseneinheit muss dazu für jedes Ventil mit verschiedenen Bohrungen versehen werden, die zunächst den Leim aus der Leimkammer an die Oberfläche der Düseneinheit führen können, an der das Leimventil angeordnet ist, und die dann den Leim vom Ventil aus zu der oder zu den betreffenden Leimaustrittöffnungen führt. Das Einbringen von Bohrungen in die Düseneinheit ist stets mit hohen Kosten verbunden. Auch sind vorgefertigte Leimventile teuer.A disadvantage of arrangements according to the prior art is that prefabricated glue valves are arranged on the nozzle unit. The nozzle unit must be provided for each valve with different holes, which can first lead the glue from the glue chamber to the surface of the nozzle unit on which the glue valve is arranged, and then the glue from the valve to or to the respective glue outlet openings leads. The introduction of holes in the nozzle unit is always associated with high costs. Also prefabricated glue valves are expensive.
Die Aufgabe der vorliegenden Erfindung ist es daher, eine Vorrichtung und ein Verfahren zu schaffen, mit welchen sich Kosten einsparen lassen.The object of the present invention is therefore to provide an apparatus and a method with which costs can be saved.
Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Anspruchs 1 gelöst. Demnach ist vorgesehen, dass das Gegenelement eines Leimventils in oder in unmittelbarer Nähe zur Leimkammer angeordnet ist. Das Gegenelement kann dabei beispielsweise in dem Übergangsbereich zwischen der Leimkammer und der Leimzuführleitung angeordnet sein oder von diesem Übergangsbereich gebildet werden. Da der Dichtkopf mit dem Gegenelement zusammenwirkt, kann daher von einem in die Leimkammer integrierten Ventil gesprochen werden. Von besonderem Vorteil ist dabei, dass nun auf die Leimleitungen, welche den Leim von der Leimkammer zu den Ventilen bringen, vollständig verzichtet werden kann. Damit verringert sich die Zahl der Bohrungen in Düseneinheit erheblich, was sich kostenersparend auswirkt. Auch wird nun für die Ventile selbst beispielsweise kein separates Gehäuse mit einer eigenen Kammer mehr benötigt. Durch Einsparung von leimführenden Leitungen verringert sich auch der Wartungs-, insbesondere der Reinigungsaufwand. Da zudem die Ventile nun in der Düseneinheit integriert sind, ergibt sich eine kleinere, kompaktere Baugröße der gesamten Düseneinheit.According to the invention, this object is solved by the features of
In einer vorteilhaften Weiterbildung ist vorgesehen, dass das Gegenelement als eigenständiges Bauteil ausgebildet ist und in den Übergangsbereich zwischen der Leimkammer und der Leimzuführleitung eingebracht ist. Damit kann das Gegenelement auf einfache Weise ausgewechselt werden, wenn es beispielsweise aufgrund von Verschleiß zu Undichtigkeiten des Ventils gekommen ist. Das Gegenelement kann dabei gegenüber der Leimzuführleitung mit einem Dichtmittel, etwa einem O-Ring, abgedichtet sein.In an advantageous development, it is provided that the counter element is designed as an independent component and is introduced into the transition region between the glue chamber and the glue feed line. Thus, the counter element can be easily replaced when it comes to leaks in the valve, for example, due to wear. The counter element can be sealed against the glue supply line with a sealant, such as an O-ring.
Besonders vorteilhaft ist dabei, wenn das Gegenelement zylinder- oder scheibenförmig mit einem Gewinde an seiner Außenoberfläche ausgebildet und in eine mit einem Innengewinde versehene und in die Leimzuführleitung eingebrachte Bohrung eingeschraubt ist. Diese Ausführungsform macht vor allem die Montage einfacher und damit kostengünstiger.It is particularly advantageous if the counter-element is cylindrical or disc-shaped with a thread formed on its outer surface and screwed into a provided with an internal thread and introduced into the Leimzuführleitung bore. This embodiment makes especially the assembly easier and thus cheaper.
Vorteilhaft ist dabei weiter, wenn das Gegenelement an einem seiner Enden, vorzugsweise an dem der Leimkammer zugewandten Ende, mit einem Innensechskant versehen ist. Der Boden dieser sechseckigen Ausnehmung kann die Anlagefläche für den Dichtkopf vorgesehen werden. Innerhalb der Anlagefläche ist dann der Durchlass für den Leim vorgesehen.It is advantageous in this case if the counter element is provided at one of its ends, preferably at the end facing the glue chamber, with a hexagon socket. The bottom of this hexagonal recess can be provided the contact surface for the sealing head. Within the contact surface then the passage for the glue is provided.
Weitere, im Folgenden erläuterte Aspekte der Erfindung betreffen den Stößel. In einer diesbezüglichen Ausführungsform der Erfindung reicht der Stößel zumindest teilweise durch die Leimkammer hindurch. Dies ermöglicht eine platzsparende Anordnung des den Stößel bewegenden Antriebs.Further, explained below aspects of the invention relate to the plunger. In a related embodiment of the invention, the plunger extends at least partially through the glue chamber. This allows a space-saving arrangement of the ram moving drive.
Vorteilhaft ist dabei, wenn der Stößel mittels eines elektromagnetischen Verschiebeantriebs verschiebbar ist. Dabei kann der Stößel magnetische oder magnetisierbare Elemente umfassen, die von einer Spule umgeben sind, mit der ein schaltbares Magnetfeld erzeugbar ist. Ein großer Vorteil ist dabei, dass keine mechanische Verbindung des Stößels mit dem Raum außerhalb der Düseneinheit notwendig ist.It is advantageous if the plunger is displaceable by means of an electromagnetic displacement drive. In this case, the plunger may comprise magnetic or magnetizable elements which are surrounded by a coil, with which a switchable magnetic field can be generated. A great advantage is that no mechanical connection of the plunger with the space outside the nozzle unit is necessary.
Von besonders großem Vorteil ist dabei, wenn der elektromagnetische Verschiebeantrieb unmittelbar an der Leimkammer angeordnet ist. Damit können die dafür erforderlichen Bohrungen kurz gehalten werden. Zudem kann Platz gespart werden.Of particular advantage in this case is when the electromagnetic displacement drive is arranged directly on the glue chamber. Thus, the required holes can be kept short. In addition, space can be saved.
Eine besonders einfache Herstellung lässt sich dabei erreichen, wenn der elektromechanische Verschiebeantrieb diametral zum Gegenelement angeordnet ist. In diesem Fall schneidet der Stößel die Achse der Leimkammer, wenn diese einen runden Querschnitt hat. Bei einem davon abweichenden Querschnitt schneidet der Stößel die Achse des Zylinders, der in die Leimkammer einbeschrieben werden kann.A particularly simple production can be achieved if the electromechanical displacement drive is arranged diametrically opposite the counter element. In this case, the plunger cuts the axis of the glue chamber, if this has a round cross-section. In a different cross-section, the plunger cuts the axis of the cylinder, which can be inscribed in the glue chamber.
In einer weiteren vorteilhaften Ausführungsform der Erfindung ist vorgesehen, dass die Erstreckungsrichtungen der Stößel zweier Leimventile gegeneinander um die Achse der Leimkammer verdreht angeordnet sind. Insbesondere, wenn dies zwei benachbarte Ventile betrifft, können diese trotz der räumlichen Ausdehnung vor allem der die Stößel bewegenden Antriebe nahe aneinander platziert werden, so dass eine möglichst große Anzahl an Leimaustrittsöffnungen pro Längeneinheit vorgesehen kann. Zwei benachbarte Ventile können beispielsweise um 30 Grad gegeneinander verdreht sein.In a further advantageous embodiment of the invention it is provided that the extension directions of the plunger of two glue valves are arranged rotated against each other about the axis of the glue chamber. In particular, if This concerns two adjacent valves, these can be placed close to each other despite the spatial extent, especially of the ram moving drives, so that the largest possible number of glue outlet openings per unit length can be provided. For example, two adjacent valves may be rotated 30 degrees from each other.
Die Düseneinheit kann zumindest teilweise aus Kunststoff bestehen. Dies kann einerseits die Herstellung vereinfachen, andererseits ist dieses Material kostengünstig. Von besonderem Vorteil ist aber, dass ein solches Material das magnetische Feld, das von dem elektromagnetischen Verschiebeantrieb eines Ventils erzeugt wird, nicht so stark auf ein benachbartes Ventil überträgt, wie es beispielsweise in einer metallischen Umgebung der Fall ist.The nozzle unit may at least partially consist of plastic. This can on the one hand simplify the production, on the other hand, this material is inexpensive. Of particular advantage, however, is that such a material does not transmit the magnetic field generated by the electromagnetic displacement drive of one valve to an adjacent valve as much as is the case, for example, in a metallic environment.
Die Düseneinheit kann weiterhin mehrere einzelne Segmente umfassen. Einem solchen Segment kann eine kleine Anzahl an Ventilen zugeordnet sein. Vorteilhaft ist es, jedem Segment ein einzelnes Ventil zuzuordnen. Es kann aber auch von Vorteil sein, jedem Segment mehrere Ventile zuzuordnen. So können so viele Ventile vorgesehen sein, bis sich das Anordnungsmuster in Bezug auf die gegenseitige Verschwenkung der Ventile wiederholt. Sind beispielsweise drei Ventile gegeneinander verschwenkt und entspricht der Verschwenkungswinkel des vierten Ventils dem des ersten Ventils, so wären drei Ventile pro Segment vorzusehen. Bei einer Segmentierung der Düseneinheit können die Segmente sehr kostengünstig hergestellt werden, da sie jeweils identisch sind. Je nach gewünschter Größe der Düseneinheit braucht nun nur noch eine entsprechende Anzahl von Segmenten aneinander gereiht werden. Jedes Segment umfasst dabei natürlich einen Bestandteil der Leimkammer, wobei diese Leimkammerteile der Segmente kongruent sind. Diese Leimkammerteile können dann als einfache Querbohrungen innerhalb der Segmente ausgebildet sein. Das hat zur Folge, dass zwischen zwei Segmenten jeweils ein Dichtungselement vorgesehen werden sollte. Die Segmente können aneinander befestigbar sein. Hierzu können beispielsweise die Segmente mit Durchgangsbohrungen versehen sein, durch die Gewindestangen oder anderer Zugmittel steckbar sind. Mit diesem Zugmitteln und entsprechenden Fixiermitteln wie etwa Muttern können die einzelnen Segmente gegeneinander gedrückt werden. Die jeweils äußeren Segmente können an ihren äußeren Stirnseiten mit Abschlusselementen für die Leimkammer versehen sein.The nozzle unit may further comprise a plurality of individual segments. Such a segment may be associated with a small number of valves. It is advantageous to assign a single valve to each segment. However, it can also be advantageous to assign several valves to each segment. Thus, so many valves can be provided until the arrangement pattern repeats with respect to the mutual pivoting of the valves. For example, if three valves are pivoted against each other and corresponds to the Verschwenkungswinkel the fourth valve that of the first valve, so three valves per segment should be provided. In a segmentation of the nozzle unit, the segments can be produced very inexpensively, since they are identical. Depending on the desired size of the nozzle unit now only a corresponding number of segments needs to be strung together. Of course, each segment comprises a component of the glue chamber, these glue chamber parts of the segments being congruent. These glue chamber parts can then be designed as simple transverse bores within the segments. This has the consequence that between two segments each a sealing element should be provided. The segments can be fastened to each other. For this purpose, for example, the segments may be provided with through holes through which threaded rods or other traction means are pluggable. With this traction means and corresponding fixatives such as nuts, the individual Segments pressed against each other. The respective outer segments may be provided on their outer end faces with end elements for the glue chamber.
Weitere Ausführungsbeispiele der Erfindung gehen aus der gegenständlichen Beschreibung und den Ansprüchen hervor.Further embodiments of the invention will become apparent from the description and the claims.
Die einzelnen Figuren zeigen:
- Fig. 1
- einen Schnitt durch die Düseneinheit einer erfindungsgemäßen Vorrichtung
- Fig. 2
- einen Schnitt durch einen Ausschnitt der
Figur 1 - Fig. 3
wie Figur 2 , jedoch mit geöffnetem Ventil- Fig. 4
- Ansicht IV - IV aus der
Figur 3 - Fig. 5
- Ansicht V-V aus der
Figur 1 - Fig. 6
Wie Figur 5 , jedoch mit kleineren Segmenten
- Fig. 1
- a section through the nozzle unit of a device according to the invention
- Fig. 2
- a section through a section of the
FIG. 1 - Fig. 3
- as
FIG. 2 , but with open valve - Fig. 4
- View IV - IV from the
FIG. 3 - Fig. 5
- View VV from the
FIG. 1 - Fig. 6
- As
FIG. 5 but with smaller segments
Je einer oder auch mehreren Leimaustrittsöffnung ist ein Ventil 5, 6, 7 zugeordnet, mit welchen der Leimfluss durch die zugehörigen Leimzuführleitungen 3 herstellbar oder unterbrechbar ist. Jedes dieser Ventile umfasst dazu einen Stößel 8, 9, 10, welche durch nicht näher dargestellte Antriebe in ihren Erstreckungsrichtungen bewegbar sind. Jeder Stößel umfasst einen Dichtkopf, welcher auf die weiter unten beschriebene Weise mit einem Gegenelemente 11, 12, 13 zusammenwirkt.Depending on one or more glue outlet opening, a
Die einzelnen Ventile können gegeneinander gedreht sein. Am Beispiel der Ventile 5 und 6 ist der
Die
Das Gegenelement 12 ist zylinder- oder scheibenförmig ausgebildet und trägt an seiner Außenoberfläche ein Außengewinde 18, über welches das Gegenelement 12 in das Gewinde 19 einer Bohrung 20 eingeschraubt ist. Diese Bohrung 20 ist vorteilhafterweise in ihrem Durchmesser kleiner als die Bohrung 21, durch welche das Ventil 6 reicht. Zur Abdichtung des Gegenelementes 12 gegenüber der Düseneinheit 1 kann ein O-Ring 22 vorgesehen sein, der in der
Die
Als Antrieb zum Verschieben des Stößels 9 ist eine Spule 23 vorgesehen, die eine Führung 24 umschließt, in welcher der Stößel 9 geführt wird. Eine weitere Führung 25 kann vorgesehen sein. Die Führung 24 ist gegenüber dem Innenraum des Gehäuses 14, in welchem sich die Spule befindet, abgeschlossen, so dass kein Leim aus der Leimkammer 2 oder der Bohrung 21 in den Innenraum der Spule gelangen kann.As a drive for moving the
Die
Die
Die
Claims (12)
das Gegenelement (11, 12, 13) in oder in unmittelbarer Nähe zur Leimkammer (2) angeordnet ist.Device for applying glue to areas of paper or plastic webs or paper or plastic web sections for producing paper sacks, comprising:
the counter element (11, 12, 13) is arranged in or in the immediate vicinity of the glue chamber (2).
dadurch gekennzeichnet, dass
das Gegenelement (11, 12, 13) als eigenständiges Bauteil ausgebildet ist und in den Übergangsbereich zwischen der Leimkammer (2) und der Leimzuführleitung (3) eingebracht ist.Device according to claim 1,
characterized in that
the counter element (11, 12, 13) is designed as an independent component and is introduced into the transition region between the glue chamber (2) and the glue feed line (3).
dadurch gekennzeichnet, dass
das Gegenelement (11, 12, 13) zylinder- oder scheibenförmig mit einem Gewinde an seiner Außenoberfläche ausgebildet und in eine mit einem Innengewinde versehene und in die Leimzuführleitung eingebrachte Bohrung (20, 21) eingeschraubt ist.Device according to one of the preceding claims,
characterized in that
the counter element (11, 12, 13) is cylindrical or disc-shaped with a thread on its outer surface and screwed into a provided with an internal thread and introduced into the Leimzuführleitung bore (20, 21).
dadurch gekennzeichnet, dass
das Gegenelement (11, 12, 13) an einem seiner Enden mit einem Innensechskant versehen ist.Device according to one of the two preceding claims,
characterized in that
the counter element (11, 12, 13) is provided at one of its ends with a hexagon socket.
dadurch gekennzeichnet, dass
der Stößel (8, 9, 10) zumindest teilweise durch die Leimkammer (2) hindurch reicht.Device according to one of the preceding claims,
characterized in that
the plunger (8, 9, 10) extends at least partially through the glue chamber (2).
dadurch gekennzeichnet, dass
der Stößel (8, 9, 10) mittels eines elektromagnetischen Verschiebeantriebs verschiebbar ist.Device according to one of the preceding claims,
characterized in that
the plunger (8, 9, 10) is displaceable by means of an electromagnetic displacement drive.
dadurch gekennzeichnet, dass
der elektromagnetische Verschiebeantrieb unmittelbar an der Leimkammer (2) angeordnet ist.Device according to the preceding claim,
characterized in that
the electromagnetic displacement drive is arranged directly on the glue chamber (2).
dadurch gekennzeichnet, dass
der elektromagnetische Verschiebeantrieb diametral zum Gegenelement (12) angeordnet ist.Device according to one of the two preceding claims,
characterized in that
the electromagnetic displacement drive is arranged diametrically opposite the counter element (12).
dadurch gekennzeichnet, dass
die Erstreckungsrichtungen der Stößel (8, 9, 10) zweier Leimventile (5, 6, 7) gegeneinander verdreht angeordnet sind.Device according to one of the preceding claims,
characterized in that
the extension directions of the plunger (8, 9, 10) of two glue valves (5, 6, 7) are arranged rotated against each other.
dadurch gekennzeichnet, dass
die Düseneinheit (1) zumindest teilweise aus Kunststoff besteht.Device according to one of the preceding claims,
characterized in that
the nozzle unit (1) consists at least partially of plastic.
dadurch gekennzeichnet, dass
die Düseneinheit (1) mehrere Segmente umfasst, die in Richtung der Leimkammer aneinander setzbar und miteinander befestigbar sind.Device according to one of the preceding claims,
characterized in that
the nozzle unit (1) comprises a plurality of segments which can be placed against one another in the direction of the glue chamber and fastened to one another.
das Gegenelement (11, 12, 13) in oder in unmittelbarer Nähe zur Leimkammer (2) angeordnet wird.Method for producing a device for applying glue to areas of paper or plastic webs or paper or plastic web sections for producing paper sacks, wherein:
the counter element (11, 12, 13) is arranged in or in the immediate vicinity of the glue chamber (2).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010029678 | 2010-06-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2392409A1 true EP2392409A1 (en) | 2011-12-07 |
EP2392409B1 EP2392409B1 (en) | 2013-07-17 |
Family
ID=44533455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11168252.2A Active EP2392409B1 (en) | 2010-06-02 | 2011-05-31 | Device for applying glue to areas of paper or plastic sheets or paper or plastic sheet sections and method for producing same |
Country Status (2)
Country | Link |
---|---|
US (1) | US8904953B2 (en) |
EP (1) | EP2392409B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114871061B (en) * | 2022-05-19 | 2024-01-12 | 成都合达自动化设备有限公司 | Lifting glue injection machine |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4488665A (en) * | 1982-05-24 | 1984-12-18 | Spraymation, Inc. | Multiple-outlet adhesive applicator apparatus and method |
US5875922A (en) * | 1997-10-10 | 1999-03-02 | Nordson Corporation | Apparatus for dispensing an adhesive |
WO2002096570A1 (en) * | 2001-05-29 | 2002-12-05 | C B Kaymich & Co Limited | Adhesive applicator apparatus |
DE10327646A1 (en) * | 2002-09-13 | 2004-03-25 | Windmöller & Hölscher Kg | Assembly for a glue profile, to attach base labels and/or glue to the folded base sections of cross-base sacks, has an array of valves to be set individually for each profile |
DE10309893A1 (en) | 2002-09-13 | 2004-04-15 | Windmöller & Hölscher Kg | Base-laying device for paper bags has at least one glue application point with at least one glue reservoir or supply line having at least one outlet aperture |
DE10330751A1 (en) | 2003-07-07 | 2005-02-10 | Windmöller & Hölscher Kg | Floor laying device for paper sacks |
EP2055394A2 (en) * | 2007-10-31 | 2009-05-06 | Nordson Corporation | Fluid dispensers and methods for dispensing viscous fluids with improved edge definition |
-
2011
- 2011-05-31 EP EP11168252.2A patent/EP2392409B1/en active Active
- 2011-06-02 US US13/151,581 patent/US8904953B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4488665A (en) * | 1982-05-24 | 1984-12-18 | Spraymation, Inc. | Multiple-outlet adhesive applicator apparatus and method |
US5875922A (en) * | 1997-10-10 | 1999-03-02 | Nordson Corporation | Apparatus for dispensing an adhesive |
WO2002096570A1 (en) * | 2001-05-29 | 2002-12-05 | C B Kaymich & Co Limited | Adhesive applicator apparatus |
DE10327646A1 (en) * | 2002-09-13 | 2004-03-25 | Windmöller & Hölscher Kg | Assembly for a glue profile, to attach base labels and/or glue to the folded base sections of cross-base sacks, has an array of valves to be set individually for each profile |
DE10309893A1 (en) | 2002-09-13 | 2004-04-15 | Windmöller & Hölscher Kg | Base-laying device for paper bags has at least one glue application point with at least one glue reservoir or supply line having at least one outlet aperture |
DE10330751A1 (en) | 2003-07-07 | 2005-02-10 | Windmöller & Hölscher Kg | Floor laying device for paper sacks |
EP2055394A2 (en) * | 2007-10-31 | 2009-05-06 | Nordson Corporation | Fluid dispensers and methods for dispensing viscous fluids with improved edge definition |
Also Published As
Publication number | Publication date |
---|---|
US20110297079A1 (en) | 2011-12-08 |
EP2392409B1 (en) | 2013-07-17 |
US8904953B2 (en) | 2014-12-09 |
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