EP3456644B1 - Hot glueing device with suction for a labelling machine - Google Patents
Hot glueing device with suction for a labelling machine Download PDFInfo
- Publication number
- EP3456644B1 EP3456644B1 EP18183139.7A EP18183139A EP3456644B1 EP 3456644 B1 EP3456644 B1 EP 3456644B1 EP 18183139 A EP18183139 A EP 18183139A EP 3456644 B1 EP3456644 B1 EP 3456644B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter cartridge
- housing
- glue
- hot
- filter
- 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
Links
- 238000002372 labelling Methods 0.000 title claims description 34
- 238000004026 adhesive bonding Methods 0.000 title description 4
- 239000007789 gas Substances 0.000 claims description 62
- 239000003292 glue Substances 0.000 claims description 61
- 239000004831 Hot glue Substances 0.000 claims description 29
- 238000001816 cooling Methods 0.000 claims description 23
- 238000011144 upstream manufacturing Methods 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 8
- 235000013361 beverage Nutrition 0.000 claims description 7
- 238000000071 blow moulding Methods 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 2
- 238000007790 scraping Methods 0.000 claims description 2
- 239000012943 hotmelt Substances 0.000 description 33
- 238000010438 heat treatment Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000002904 solvent Substances 0.000 description 8
- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- 238000011049 filling Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000628997 Flos Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012717 electrostatic precipitator Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 238000010943 off-gassing Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 210000002268 wool Anatomy 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
- 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
- B05C1/04—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 work of indefinite length
- B05C1/08—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 work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0817—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 work of indefinite length using a roller or other rotating member which contacts the work along a generating line characterised by means for removing partially liquid or other fluent material from the roller, e.g. scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C9/00—Details of labelling machines or apparatus
- B65C9/20—Gluing the labels or articles
- B65C9/22—Gluing the labels or articles by wetting, e.g. by applying liquid glue or a liquid to a dry glue coating
- B65C9/2247—Gluing the labels or articles by wetting, e.g. by applying liquid glue or a liquid to a dry glue coating using liquid rollers or bands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C9/00—Details of labelling machines or apparatus
- B65C9/20—Gluing the labels or articles
- B65C9/22—Gluing the labels or articles by wetting, e.g. by applying liquid glue or a liquid to a dry glue coating
- B65C9/2247—Gluing the labels or articles by wetting, e.g. by applying liquid glue or a liquid to a dry glue coating using liquid rollers or bands
- B65C9/2256—Applying the liquid on the label
-
- 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
- B05C1/04—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 work of indefinite length
- B05C1/08—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 work of indefinite length using a roller or other rotating member which contacts the work along a generating line
-
- 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
- B05C1/04—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 work of indefinite length
- B05C1/08—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 work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/12—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 work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being fed round the roller
-
- 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
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
- B05C11/04—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades
- B05C11/048—Scrapers, i.e. metering blades having their edge oriented in the upstream direction in order to provide a reverse angle of attack
-
- 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
- B05C15/00—Enclosures for apparatus; Booths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C9/00—Details of labelling machines or apparatus
- B65C2009/0071—Details of glueing devices
- B65C2009/0075—Constructional details of glueing rollers
Definitions
- the present invention relates to a hot-melt unit for a labeling machine according to the preamble of claim 1 and a labeling machine for labeling containers according to the preamble of claim 11.
- Hot glue units in connection with labeling machines in the field of the beverage processing industry are known from the prior art.
- the DE 20 2016 104 049 U1 a hot-melt glue unit, which is assigned a deduction for sucking off glue vapors from a glue roller.
- the DE 89 02 427 U1 shows a gluing device for solvents, in particular for use with labeling machines, with a solvent dispensing device attached to a holder and connected to a solvent reservoir for applying solvents to solvent absorption bodies, such as labels, which can be passed along a transport path.
- the EP 2 476 624 A1 discloses a generic hot-melt unit comprising a glue roller, a glue container, a housing and a glue scraper.
- the EP 0 579 984 A2 discloses a labeling device with a gluing device for cold glue and a solvent application device, the solvent application device comprising a suction device for gases.
- the technical problem to be solved consists in specifying a hot-melt unit which enables the vapors produced when the hot-melt is heated to be extracted reliably and with a reduced energy requirement.
- the hot-melt unit according to the invention for a labeling machine in the beverage processing industry comprises at least one glue roller and one glue container as well as a housing in which the glue roller is arranged and is characterized in that the hot-melt unit has a filter unit connected to the housing with a suction device that extracts gases from the Inside the housing can suck off and can feed the filter unit before the gases can leave the hot melt unit, wherein the housing comprises a fresh air opening which is arranged on a first side surface of the housing and wherein the suction comprises a suction opening through which gases from the interior of the housing can be sucked off, wherein the suction opening is arranged on a second side surface of the housing.
- the design of the housing with the filter unit and the suction is to be understood in such a way that the air from inside the housing must first pass through the filter unit, at least when the suction is switched on, before it can even escape into the environment outside the housing.
- the filter unit also includes a filter cartridge and a collection container, the filter cartridge and the collection container being connected to one another in such a way that condensate that forms in the filter cartridge can drain into the collection container.
- gases that may arise when the hot glue is heated cool down, which means that they can be brought to a temperature that is lower than the condensation temperature.
- the second side surface and the first side surface are opposite one another or are at least separated from one another by two further side surfaces.
- the effect of the previous embodiment can thus be further increased.
- the filter cartridge and/or the collection container can be designed so that they can be changed quickly.
- the filter cartridge will inevitably become dirty and the collection container will be constantly filled, making it necessary to change it. Downtimes can be minimized thanks to the quick-change design of these components.
- quickly exchangeable means that the filter cartridge and/or the collection container are connected to the filter unit or, more generally, to the hot-melt unit in such a way that no tools are required to loosen the connections. This includes, for example, click or plug connections.
- any connections between the filter unit and the housing can be designed to be detachable without tools.
- Self-centering elements can be used to advantage here, so that the media channels to be connected can be connected as easily and reliably as possible.
- the filter cartridge comprises a flow channel for the gas drawn in from the interior of the housing, which is longer than the maximum extension of the filter cartridge in at least one direction. If the filter cartridge is, for example, cylindrical and has a height of 10 cm, the flow channel is longer than this 10 cm. A flow channel that is as long as possible ensures that parts of the gas mixture that pass through it condense and are reliably collected in the collection container and cannot escape into the environment.
- the flow channel is wound helically and/or the filter unit comprises a cooling system for cooling the flow channel. Both variants ensure that the gases forming in the housing are condensed as completely as possible.
- the suction device comprises at least one fan arranged upstream or downstream of the filter cartridge. This fan can provide the necessary draft to ensure that the gases generated in the housing are extracted.
- two fans are provided, with one being arranged upstream and one downstream of the filter cartridge. Any turbulence that may occur within the filter cartridge, which could prevent the gases from flowing further, can be compensated for by the fan arranged downstream, whereas the fan upstream of the filter cartridge can cause a reliable suction of the gases from the housing.
- an outlet opening is arranged downstream of the filter cartridge, through which air filtered by the filter cartridge can escape.
- the hot-melt glue unit includes a glue scraper for scraping glue from the glue roller, the glue scraper being arranged inside the housing.
- the labeling machine according to the invention for labeling containers such as bottles in the beverage processing industry is characterized in that the labeling machine for gluing the labels with hot glue comprises a hot glue unit according to one of the above embodiments.
- a method can also be considered in which hot glue is heated in a hot glue unit for a labeling machine and the resulting gases are sucked out of a housing in which a glue roller and a glue container are arranged, by suction of a filter unit and fed to the filter unit. before the gases leave the hot melt unit.
- a filter cartridge and a collection container of the filter unit are connected to one another in such a way that the condensate that forms in the filter cartridge runs off into the collection container.
- the air is sucked out of the housing from a suction opening in a second side surface and fresh air enters the housing through a fresh air opening in a first side surface.
- a droplet separator is arranged between the housing and the filter cartridge, which is connected to the collection container. With the droplet separator, condensate droplets that have already formed can be separated from the gas mixture before they reach the filter cartridge, which means that clogging of the filter cartridge and the need to stop the labeling machine for a longer period of time can be avoided.
- the gases from the housing pass through the filter cartridge along a flow channel, which is wound helically, for example, or wherein a Cooling system is provided which cools the flow channel at least during the passage of gases.
- a method for providing heated glue for a labeling machine by means of a hot glue unit comprising that the glue is heated in a glue container and the heated glue is transported to a glue roller inside a housing, wherein a filter unit is provided, which sucks and filters gases from the interior of the housing by means of a suction device before these gases leave the hot-melt unit, wherein the hot-melt unit is one according to the above embodiments.
- the glue scraper scrapes the heated glue from the glue roller and transfers the heated glue to a label, which is then applied to a container to be labeled.
- the container to be labeled is not closed when it is being labeled. Contamination of the interior of the container in particular can be avoided by extracting the gases produced when the glue is heated.
- the filter unit can comprise a filter cartridge and a collection container, with condensate forming in the filter cartridge draining into the collection container via a connection between the filter cartridge and collection container.
- the gases are extracted from the interior of the housing through a suction opening of the suction arranged on a second side surface different from a first side surface in which a fresh air opening is arranged through which air flows into the housing. This ensures that the gases circulate as completely as possible within the housing, so that only small, preferably no, dead areas form from which the gases cannot be extracted.
- the gas sucked out of the interior of the housing runs through a flow channel inside the filter cartridge, which is optionally cooled.
- the most complete possible condensation of vaporized components of the hot melt and the associated return to a possible collection container of the filter unit can thus be ensured.
- the gases extracted from the interior of the housing first pass through a droplet separator, in which condensate droplets condensed in the gases are separated and fed to the collection container, and then pass through the filter cartridge.
- the method can include that containers are fed from a blow molding machine to a labeling machine and are provided with a label to which hot glue has been applied or hot glue has been applied, the hot glue being provided according to the method according to the invention, and then a filler and/or Wearers are supplied.
- a container treatment system for treating containers such as bottles in the beverage processing industry comprising a blow molding machine, a labeling machine and a filler in the transport direction of the containers, the labeling machine being the labeling machine of the previous embodiment.
- FIG. 1 shows a schematic view of a hot melt unit 100 according to an embodiment of the invention.
- the hot melt unit is provided with a housing 101 .
- a glue roller is arranged in this, as is typical for hot glue units. These are not shown here, but will be 2 explained in more detail.
- a glue scraper is also assigned to the glue roller in the housing in order to remove the glue from the glue roller.
- a filter unit 110 is connected to the housing.
- This filter unit includes a suction device 102, with which air can be sucked out directly from the housing via a suitable suction opening (not shown here).
- the suction device 102 is connected directly to the interior of the housing, for example via the suction opening already mentioned.
- the housing and the suction are preferably designed in such a way that no gases can leave the housing except via the suction 102 .
- the housing together with the suction can thus be regarded as an essentially closed system.
- the filter unit also includes a filter cartridge 103 and a collection container 104.
- the filter cartridge is arranged downstream of the suction with respect to a flow direction of the gases from the housing predetermined by the suction, in such a way that the gases sucked out of the interior of the housing by means of the suction 102 of the filter cartridge 103 are supplied.
- the gases can then, for example, pass through a flow channel and then leave the hot-melt unit 100 via an outlet opening 105 .
- a collection container 104 is also connected to the filter cartridge. This is connected to the filter cartridge in such a way that condensate from the flow channel of the filter cartridge or generally from an area in which gases condense in the filter cartridge is conducted into the collection container. For this purpose, for example, small pores or other openings can be provided at suitable points in the filter cartridge through which liquid can get into the collection container 104 .
- the suction power of the suction and the performance of the filter cartridge and the capacity of the collecting container 104 can be selected depending on the other system parameters, in particular depending on the total amount of heated glue (for example a certain amount of glue per hour).
- the suction can be designed to enable an air flow with a throughput of 10 liters/minute or 5 liters/minute, but also more or less.
- the filter cartridge must then enable a corresponding throughput and the collection container can have a volume of up to 500 ml, for example. The larger the volume of the collection container, the less often it has to be emptied. If the filter cartridge is suitably dimensioned, it only needs to be changed infrequently.
- one embodiment can provide for the filter cartridge and/or the collection container to be connected to the filter unit 110 so that they can be changed quickly, so that they can be replaced with only a short time and can be removed from the filter unit with little mechanical effort and replaced with new filter cartridges or collection containers.
- the status of the filter unit can preferably be monitored.
- suitable sensors such as pressure sensors, can be connected to the filter unit, which measure the differential pressure before and after the filter unit.
- the measurement results can, for example, be displayed on a control unit (in particular the display of the control unit) or otherwise processed using a computer or similar device for data processing. Other methods for measuring certain characteristics, such as inductive, optical or capacitive methods are also possible here.
- the measured values obtained are used to determine whether the filter or the filter cartridge is already clogged or clogged by the glue condensate. If this is determined, the operator can be prompted to change or clean the filter cartridge.
- a future state of the filter or the filter cartridge is predicted for a future point in time based on the measured values and/or a suitable flow and condensation model for the filter cartridge and, for example, an automatic ordering of a new filter cartridge by the labeling machine or a its associated control unit, such as a computer via the Internet or other data connection.
- Maintenance intervals can also be determined based on the predicted, future state and communicated to an operator.
- At least the collection container has a drain opening through which condensate can be drained at specific time intervals.
- a control unit e.g. a computer
- the collection container must be emptied or changed.
- a filling level sensor can be provided in the collection container. This can be mechanically as simple as possible in the form of a float.
- the hot-melt unit in the interior of the housing 101 includes a glue roller 222 from which the glue can emerge and be separated by the glue scraper 221 .
- the glue roller can be rotated.
- the fresh air opening 223 in the housing 101 is also shown in this figure. This is located on one side 230 of the housing 101, for example on one side of the glue roller 222.
- the suction opening 224 is shown on the side surface 231, with the aid of which the suction can suck gases out of the housing.
- fresh air openings 223 and outlet openings 224 are provided on different side surfaces of the housing.
- the resulting flow path of the gases covers as many areas within the housing as possible.
- An arrangement of the suction opening 224 on the side face of the housing opposite the side face in which the fresh air opening 223 is provided, as viewed from the glue roller, can be particularly advantageous.
- a plurality of suction openings can also be provided in order to avoid "dead areas" from which gases can only be suctioned to a lesser extent.
- the suction can also comprise a fan downstream of suction opening 224, but at least upstream of the filter cartridge, the direction of rotation of which is aligned in such a way that it sucks gases out of housing 101 through the suction opening and feeds them to filter cartridge 103.
- the suction opening or a channel directly adjoining it can be connected to a flow channel of the filter cartridge, so that the gases passing through the suction opening reach the filter cartridge.
- a section through the hot melt unit is shown schematically. This cut is perpendicular to the in 2 shown sectional plane and runs through the collection container or the filter cartridge 103 therethrough.
- the connection 353 of the suction device with the filter cartridge 103 can be seen here at the lower part or at least the part opposite the outlet opening at the upper end of the filter cartridge.
- the collection container 104 is arranged below the filter cartridge 103 . This can be mounted, for example, on the holder 352 shown.
- the holder 352 can advantageously be designed as a weighing counter or include one, so that the fill level of the collecting container can be determined on the basis of a comparison of the empty weight of the collecting container with a measured weight of the collecting container. If this difference reaches a predetermined value, for example 200 g, the operator can be prompted to change the collection container.
- the filter cartridge shown here can have a helical flow channel on the inside, through which the gas sucked out of the interior of the housing 101 by the suction has to pass before it reaches the outlet opening 105 .
- the gas cools down and can condense out, so that condensates effectively remain in the filter cartridge and can be guided into the collection container 104.
- a cooling system 355 is shown schematically in the area of the filter cartridge.
- This cooling system can not only be designed as part of the filter unit 103, but can also be fully or partially integrated into the filter cartridge 103.
- the cooling system is designed to cool at least the flow channel 354, which promotes the formation of condensate.
- This condensate usually consists of the outgassing of the hot glue, which inevitably occurs when the hot glue is heated.
- Targeted cooling of the gas mixture passing through the flow channel 354 (consisting of air and the gases of the hot melt) can ensure that the gases of the hot melt are condensed as completely as possible and the associated separation from the rest of the air, so that the condensate is effectively separated into the collection container can be.
- the collecting container itself can additionally be equipped with a heating element (for example an infrared radiator or heating coil) or a heating element can be assigned to it.
- a heating element for example an infrared radiator or heating coil
- the condensate located in the collecting container can be kept in the liquid state, which allows the condensate to be drained and thus allows the collecting container to be reused.
- the cooling system and the optionally provided heating element can be connected to one another via a common heat exchanger system, so that the waste heat from the heating element can be used to operate the cooling system.
- both the cooling system and the heating element can be controlled via a suitable control unit, for example the central control unit of a labeling machine in which the hot-melt unit is located, so that their respective output (i.e.
- cooling output and heating output is controlled depending on the other system parameters. For example, if the gas flow through the filter cartridge is comparatively low, only a low cooling capacity can be achieved. If the gas flow increases, the cooling capacity can be suitably increased.
- the heating element can also be controlled in such a way that its heat output is increased depending on the filling level of the collection container. It can thus be ensured that the condensate in the collection container remains as liquid as possible even when the filling level is high, and that the condensate does not unintentionally start to boil or at least develop considerable steam when the filling level is low.
- Another fan 351 is also indicated downstream of the filter cartridge but in front of the outlet opening 105 . This can suck in the air or the gas mixture from the filter cartridge and eject via the outlet opening 105, so that unintentional turbulence within the filter cartridge does not adversely affect the gas flow.
- a cooling system (not shown here) can be provided, which additionally cools the housing 101 and the flow channel 354 from the outlet opening 105 to the filter cartridge 103. If a droplet separator is arranged upstream of the filter cartridge, this additional cooling can already ensure better separation of condensate that forms in the droplet separator, with the result that clogging of the filter cartridge can be avoided.
- the cooling of the housing 101 and/or the flow channel 354 can generally be ensured by a double-walled structure, with cold air being directed into a space in the double-walled housing, for example via an external air supply and/or by means of an (external) air conditioning unit Housing wall and also (indirectly) the interior of the housing and thus the gases produced when the glue is heated cools.
- the cold air can be obtained, for example, from the exhaust air from a blow molding machine that is connected (blocked) to the labeling machine to form a container treatment system.
- Liquid cooling for example using cooling water for control cabinets or the like, is also conceivable here. Adiabatic cooling is also possible.
- filter media for the filter cartridge.
- Cardboard filters, paper filters or filter floss, but also glass fiber fleece, ceramic filters, sintered metal, steel wool, chemical filter materials in general, depth filters, electrostatic precipitators, water filters or droplet separators can be used.
- carbon filters can preferably be used.
- the filter in particular the filter cartridge, can also be connected to a cleaning system (backwashing, for example) in order to prevent the filter cartridge from clogging for as long as possible.
- the backwash can, for example, flush the filter medium or the entire filter cartridge with a suitable flushing medium, preferably a medium in which all residues of the glue dissolve, at certain time intervals or depending on the condition of the filter (more details on its determination were explained above), with which residues can be removed. Water or specialized solvents can be considered here.
- the flushing medium with any glue residues that may have been dissolved can be fed to the collection container 104 .
- the filter cartridge and the collection container are not directly connected to one another and the filter cartridge is not directly connected to the housing.
- the filter cartridge and the collection container are not directly connected to one another and the filter cartridge is not directly connected to the housing.
- a pipe 470 leads out of the housing 101.
- the pipe 470 has a U-shape, with the collection container 104 being connected to the lowest point of the U-shape. This facilitates the drainage of the condensate.
- the tube can consist of a plastic or a metal, for example, and can preferably be produced by means of a 3D printing process.
- the inner surface of the tube comprises baffle plates, impact screens or ribs, so that the condensation of the gases is promoted by an increased surface.
- the inner surface of the tube can be provided with a lipophobic coating. In this way, the drainage of the condensate on the surface of the pipe can be promoted. This not only includes suitable coatings, but also polishing or sealing as well as other surface finishes can have this effect.
- the tube can have ribbing on the outer surface and/or be double-walled. In this way, the cooling of the interior can be promoted and the gases can be better condensed.
- the tube can also have a further bypass section, not shown here, which is connected to the glue container 480 and opens into the tube at least in an area that is arranged upstream of the collecting container 104 . In this way, when the glue is heated in the glue container 480, the gases produced can be sucked off immediately and fed to the collection container.
- a droplet separator (not shown here) according to one or more embodiments described above can be provided upstream of the filter cartridge. This can be arranged, for example, in the "descending" branch 471 of the U-shaped tube 470 and have a connection to the collection container 104, so that condensate collected in the droplet separator can be routed into the collection container.
- the additional devices that may be provided after the filter cartridge 104, such as fans, can be provided analogously to the above embodiments.
- the tube and all other components of the in Fig.4 can also include all cooling devices as have already been described.
- the pipe can be double-walled and a cooling medium can circulate within this double wall in order to promote condensation of the gases.
- the housing 101 is not completely “opaque".
- a robust design of the housing for example made of steel, is preferred.
- the housing is at least partially transparent, in particular comprising a viewing window.
- the viewing window can be designed to be opened, with this opening preferably not being possible during operation in order to prevent the escape of any gases that are hazardous to health.
- the viewing window can therefore be connected to a suitable detector, for example in the form of a magnetic switch or ultrasonic sensor, which registers the opening or an attempt to open the viewing window and causes the labeling machine and the hot-melt unit to be switched off.
- the hot melt unit according to the invention together with its filter unit, is designed such that the air released from the filter unit into the environment (ie after cleaning in the filter cartridge) has breathing air quality, preferably even clean room quality.
- the embodiments described here can all be used both in separately designed labeling machines but also in "blocked” labeling machines.
- the latter are operated in container treatment plants together with an upstream (arranged upstream in the transport direction of the container) blow molding machine or other device for manufacturing containers and a downstream filler and/or capper (arranged downstream in the transport direction of the container).
Landscapes
- Labeling Devices (AREA)
- Coating Apparatus (AREA)
Description
Die vorliegende Erfindung betrifft ein Heißleimwerk für eine Etikettiermaschine gemäß dem Oberbegriff des Anspruchs 1 sowie eine Etikettiermaschine zum Etikettieren von Behältern gemäß Oberbegriff des Anspruchs 11.The present invention relates to a hot-melt unit for a labeling machine according to the preamble of claim 1 and a labeling machine for labeling containers according to the preamble of claim 11.
Heißleimwerke in Verbindung mit Etikettiermaschinen im Bereich der getränkeverarbeitenden Industrie sind aus dem Stand der Technik bekannt.Hot glue units in connection with labeling machines in the field of the beverage processing industry are known from the prior art.
So zeigt beispielsweise die
Die bisherigen Systeme zum Absaugen von beim Erwärmen des Leimes entstehenden Dämpfen arbeiten hinsichtlich der Absaugung nicht vollständig zuverlässig, sodass in der Umgebung des Heißleimwerkes immer noch Gase austreten können, was zur Verschmutzung der Umgebung(sluft) führen kann. Insbesondere bei Etikettiermaschinen, die noch offene Behälter etikettieren, kann das Austreten solcher Gasen auch zu einer Kontamination des Innenraums der Behälter führen. Ferner ist die für die Absaugung erforderliche Leistung aufgrund des insgesamt angesaugten Gasvolumens verhältnismäßig groß, sodass auch ein erheblicher Energiebedarf besteht. Die
Die
Die
Ausgehend vom bekannten Stand der Technik besteht die zu lösende technische Aufgabe somit darin, ein Heißleimwerk anzugeben, das eine Absaugung der beim Erwärmen des Heißleims entstehenden Dämpfe zuverlässig und mit verringertem Energiebedarf ermöglicht.Proceeding from the known prior art, the technical problem to be solved consists in specifying a hot-melt unit which enables the vapors produced when the hot-melt is heated to be extracted reliably and with a reduced energy requirement.
Diese Aufgabe wird durch das Heißleimwerk gemäß Anspruch 1 und die Etikettiermaschine gemäß Anspruch 11 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen erfasst.This object is achieved by the hot glue unit according to claim 1 and the labeling machine according to claim 11. Advantageous developments of the invention are included in the dependent claims.
Das erfindungsgemäße Heißleimwerk für eine Etikettiermaschine in der getränkeverarbeitenden Industrie umfasst wenigstens eine Leimwalze und einen Leimbehälter sowie ein Gehäuse, in dem die Leimwalze angeordnet ist und ist dadurch gekennzeichnet, dass das Heißleimwerk eine mit dem Gehäuse verbundene Filtereinheit mit einer Absaugung umfasst, die Gase aus dem Inneren des Gehäuses absaugen und der Filtereinheit zuführen kann, bevor die Gase das Heißleimwerk verlassen können, wobei das Gehäuse eine Frischluftöffnung umfasst, die an einer ersten Seitenfläche des Gehäuses angeordnet ist und wobei die Absaugung eine Absaugöffnung umfasst, durch die Gase aus dem Inneren des Gehäuses abgesaugt werden können, wobei die Absaugöffnung an einer zweiten Seitenfläche des Gehäuses angeordnet ist.The hot-melt unit according to the invention for a labeling machine in the beverage processing industry comprises at least one glue roller and one glue container as well as a housing in which the glue roller is arranged and is characterized in that the hot-melt unit has a filter unit connected to the housing with a suction device that extracts gases from the Inside the housing can suck off and can feed the filter unit before the gases can leave the hot melt unit, wherein the housing comprises a fresh air opening which is arranged on a first side surface of the housing and wherein the suction comprises a suction opening through which gases from the interior of the housing can be sucked off, wherein the suction opening is arranged on a second side surface of the housing.
Die Konstruktion des Gehäuses mit der Filtereinheit und der Absaugung ist dabei so zu verstehen, dass die Luft aus dem Inneren des Gehäuses zunächst, zumindest bei eingeschalteter Absaugung die Filtereinheit passieren muss, bevor sie überhaupt in die Umgebung außerhalb des Gehäuses entweichen kann.The design of the housing with the filter unit and the suction is to be understood in such a way that the air from inside the housing must first pass through the filter unit, at least when the suction is switched on, before it can even escape into the environment outside the housing.
So wird sichergestellt, dass die Absaugung lediglich das Gasvolumen innerhalb des Gehäuses ansaugen muss und ferner eine vollständige oder möglichst vollständige Filterung der Gase in der Filtereinheit erfolgen kann, bevor die Gase aus dem Heißleimwerk in die Umgebung austreten können. Der Energiebedarf für die Absaugung kann somit maßgeblich reduziert werden, während die Zuverlässigkeit der Absaugung gesteigert wird. Überdies kann der so entstehende Luftzug von der Frischluftöffnung zur Absaugöffnung möglichst sämtliche Gase innerhalb des Gehäuses erfassen, so dass ein effektives Absaugen erfolgen kann.This ensures that the suction only has to suck in the volume of gas within the housing and that the gases can be filtered completely or as completely as possible in the filter unit before the gases can escape from the hot-melt unit into the environment. The energy requirement for the suction can thus be significantly reduced, while the reliability of the suction is increased. In addition, the resulting draft from the fresh air opening to the suction opening can capture as many gases as possible within the housing, so that effective suction can take place.
In einer Ausführungsform umfasst die Filtereinheit weiterhin eine Filterpatrone und einen Auffangbehälter, wobei die Filterpatrone und der Auffangbehälter so miteinander verbunden sind, dass ein sich in der Filterpatrone bildendes Kondensat in den Auffangbehälter ablaufen kann. Beim Durchlaufen der Absaugung und der gesamten Filtereinheit, insbesondere der Filterpatrone kühlen sich Gase, die bei der Erwärmung des Heißleims entstehen können, ab, womit sie auf eine Temperatur gebracht werden können, die geringer als die Kondensationstemperatur ist. Durch die Verbindung der Filterpatrone mit dem Auffangbehälter kann ein unerwünschtes Ablaufen dieses Kondensats zurück in die Absaugung oder gar das Gehäuse vermieden werden.In one embodiment, the filter unit also includes a filter cartridge and a collection container, the filter cartridge and the collection container being connected to one another in such a way that condensate that forms in the filter cartridge can drain into the collection container. When passing through the suction and the entire filter unit, in particular the filter cartridge, gases that may arise when the hot glue is heated cool down, which means that they can be brought to a temperature that is lower than the condensation temperature. By connecting the filter cartridge to the collection container, this condensate can be prevented from running back into the suction system or even into the housing.
In einer Weiterbildung dieser Ausführungsform ist vorgesehen, dass die zweite Seitenfläche und die erste Seitenfläche einander gegenüberliegen oder zumindest durch zwei weitere Seitenflächen voneinander getrennt sind. Der Effekt der vorherigen Ausführungsform kann so noch gesteigert werden.In a development of this embodiment, it is provided that the second side surface and the first side surface are opposite one another or are at least separated from one another by two further side surfaces. The effect of the previous embodiment can thus be further increased.
Ferner kann vorgesehen sein, dass die Filterpatrone und/oder der Auffangbehälter schnell wechselbar ausgebildet sind. Während des Betriebs des Heißleimwerkes wird es unweigerlich zu Verunreinigungen der Filterpatrone und zum stetigen Befüllen des Auffangbehälters kommen, was einen Wechsel erforderlich macht. Stillstandszeiten können durch die schnell wechselbare Ausführung dieser Komponenten minimiert werden. Dabei bedeutet schnell wechselbar, dass die Filterpatrone und/oder der Auffangbehälter mit der Filtereinheit oder allgemeiner dem Heißleimwerk derart verbunden sind, dass keine Werkzeuge zum Lösen der Verbindungen nötig sind. Darunter fallen beispielsweise Klick- oder Steckverbindungen. Es kann allgemein vorgesehen sein, dass die gesamte Filtereinheit schnellwechselbar und insbesondere werzeuglos vom Heißleimwerk gelöst werden kann. Insbesondere können etwaige Verbindungen der Filtereinheit mit dem Gehäuse werzeuglos lösbar ausgeführt sein. Zusätzlich oder alternativ kann vorgesehen sein, dass zumindest die Verbindung eines durch die Filtereinheit führenden Medienkanals mit dem Gehäuse oder mit einem aus dem Gehäuse führenden Medienkanal selbständig bzw. automatisch erfolgt. Hier können selbstzentrierende Elemente vorteilhaft eingesetzt werden, sodass die zu verbindenden Medienkanäle möglichst einfach und zuverlässig verbunden werden können.Furthermore, provision can be made for the filter cartridge and/or the collection container to be designed so that they can be changed quickly. During the operation of the hot melt unit, the filter cartridge will inevitably become dirty and the collection container will be constantly filled, making it necessary to change it. Downtimes can be minimized thanks to the quick-change design of these components. In this case, quickly exchangeable means that the filter cartridge and/or the collection container are connected to the filter unit or, more generally, to the hot-melt unit in such a way that no tools are required to loosen the connections. This includes, for example, click or plug connections. Provision can generally be made for the entire filter unit to be able to be detached from the hot-melt unit in a quick-change manner and in particular without tools. In particular, any connections between the filter unit and the housing can be designed to be detachable without tools. In addition or as an alternative, it can be provided that at least the connection of a media channel leading through the filter unit to the housing or to a media channel leading out of the housing takes place independently or automatically. Self-centering elements can be used to advantage here, so that the media channels to be connected can be connected as easily and reliably as possible.
Weiterhin kann vorgesehen sein, dass die Filterpatrone einen Strömungskanal für das aus dem Inneren des Gehäuses angesaugte Gas umfasst, der länger ist, als die maximale Ausdehnung der Filterpatrone in wenigstens einer Richtung. Ist die Filterpatrone beispielsweise zylindrisch ausgebildet und weist eine Höhe von 10 cm auf, so ist der Strömungskanal länger als diese 10 cm. Ein möglichst langer Strömungskanal gewährleistet, dass Teile des Gasgemisches, die diesen passieren, kondensieren und zuverlässig in dem Auffangbehälter aufgefangen werden und nicht in die Umwelt austreten können.Furthermore, it can be provided that the filter cartridge comprises a flow channel for the gas drawn in from the interior of the housing, which is longer than the maximum extension of the filter cartridge in at least one direction. If the filter cartridge is, for example, cylindrical and has a height of 10 cm, the flow channel is longer than this 10 cm. A flow channel that is as long as possible ensures that parts of the gas mixture that pass through it condense and are reliably collected in the collection container and cannot escape into the environment.
In einer Weiterführung dieser Ausführungsform ist vorgesehen, dass der Strömungskanal schraubenförmig gewunden ist und/oder die Filtereinheit ein Kühlsystem zum Kühlen des Strömungskanals umfasst. Beide Varianten gewährleisten ein möglichst vollständiges Kondensieren sich im Gehäuse bildender Gase.In a further development of this embodiment, it is provided that the flow channel is wound helically and/or the filter unit comprises a cooling system for cooling the flow channel. Both variants ensure that the gases forming in the housing are condensed as completely as possible.
In einer Ausführungsform umfasst die Absaugung wenigstens einen stromauf oder stromab der Filterpatrone angeordneten Ventilator. Dieser Ventilator kann für den notwendigen Luftzug sorgen, um ein Absaugen der im Gehäuse entstehenden Gase zu gewährleisten.In one embodiment, the suction device comprises at least one fan arranged upstream or downstream of the filter cartridge. This fan can provide the necessary draft to ensure that the gases generated in the housing are extracted.
In einer Weiterbildung dieser Ausführungsform sind zwei Ventilatoren vorgesehen, wobei einer stromauf und einer stromab der Filterpatrone angeordnet ist. Eventuell auftretende Verwirbelungen innerhalb der Filterpatrone, die ein weiteres Strömen der Gase verhindern könnten, können durch den stromab angeordneten Ventilator kompensiert werden, wohingegen der Ventilator stromauf der Filterpatrone ein zuverlässiges Ansaugen der Gase aus dem Gehäuse bewirken kann.In a further development of this embodiment, two fans are provided, with one being arranged upstream and one downstream of the filter cartridge. Any turbulence that may occur within the filter cartridge, which could prevent the gases from flowing further, can be compensated for by the fan arranged downstream, whereas the fan upstream of the filter cartridge can cause a reliable suction of the gases from the housing.
In einer Ausführungsform ist stromab der Filterpatrone eine Austrittsöffnung angeordnet, durch die von der Filterpatrone gefilterte Luft austreten kann.In one embodiment, an outlet opening is arranged downstream of the filter cartridge, through which air filtered by the filter cartridge can escape.
Das Heißleimwerk umfasst einen Leimschaber zum Abschaben von Leim von der Leimwalze, wobei der Leimschaber innerhalb des Gehäuses angeordnet ist.The hot-melt glue unit includes a glue scraper for scraping glue from the glue roller, the glue scraper being arranged inside the housing.
Die erfindungsgemäße Etikettiermaschine zum Etikettieren von Behältern wie Flaschen in der getränkeverarbeitenden Industrie ist dadurch gekennzeichnet, dass die Etikettiermaschine zum Beleimen der Etiketten mit Heißleim ein Heißleimwerk nach einer der obigen Ausführungsformen umfasst.The labeling machine according to the invention for labeling containers such as bottles in the beverage processing industry is characterized in that the labeling machine for gluing the labels with hot glue comprises a hot glue unit according to one of the above embodiments.
Es kann auch an ein Verfahren gedacht sein, bei dem Heißleim in einem Heißleimwerk für eine Etikettiermaschine erwärmt wird und dabei entstehende Gase aus einem Gehäuse, in dem eine Leimwalze und ein Leimbehälter angeordnet sind, durch eine Absaugung einer Filtereinheit abgesaugt und der Filtereinheit zugeführt werden, bevor die Gase das Heißleimwerk verlassen. Ferner kann daran gedacht sein, dass eine Filterpatrone und ein Auffangbehälter der Filtereinheit so miteinander verbunden sind, dass das sich in der Filterpatrone bildende Kondensat in den Auffangbehälter abläuft.A method can also be considered in which hot glue is heated in a hot glue unit for a labeling machine and the resulting gases are sucked out of a housing in which a glue roller and a glue container are arranged, by suction of a filter unit and fed to the filter unit. before the gases leave the hot melt unit. Furthermore, it can be considered that a filter cartridge and a collection container of the filter unit are connected to one another in such a way that the condensate that forms in the filter cartridge runs off into the collection container.
Es kann ferner vorgesehen sein, dass die Luft aus dem Gehäuse von einer Absaugöffnung in einer zweiten Seitenfläche abgesaugt wird und Frischluft durch eine Frischluftöffnung in einer ersten Seitenfläche in das Gehäuse eintritt.It can also be provided that the air is sucked out of the housing from a suction opening in a second side surface and fresh air enters the housing through a fresh air opening in a first side surface.
Ferner kann vorgesehen sein, dass zwischen Gehäuse und Filterpatrone ein Tropfenabscheider angeordnet ist, der mit dem Auffangbehälter verbunden ist. Mit dem Tropfenabscheider können bereits entstandene Kondensattropfen aus dem Gasgemisch abgeschieden werden, bevor diese die Filterpatrone erreichen, womit ein Verstopfen der Filterpatrone und damit nötiges Anhalten der Etikettiermaschine länger vermieden werden kann.Furthermore, it can be provided that a droplet separator is arranged between the housing and the filter cartridge, which is connected to the collection container. With the droplet separator, condensate droplets that have already formed can be separated from the gas mixture before they reach the filter cartridge, which means that clogging of the filter cartridge and the need to stop the labeling machine for a longer period of time can be avoided.
Ferner kann vorgesehen sein, dass die Gase aus dem Gehäuse die Filterpatrone entlang eines Strömungskanals durchlaufen, der beispielsweise schraubenförmig gewunden ist oder wobei ein Kühlsystem vorgesehen ist, das den Strömungskanal zumindest während des Durchlaufens von Gasen kühlt.Furthermore, it can be provided that the gases from the housing pass through the filter cartridge along a flow channel, which is wound helically, for example, or wherein a Cooling system is provided which cools the flow channel at least during the passage of gases.
Zur besseren Verdeutlichung des erfindungsgemäßen Heißleimwerks, ist weiterhin ein Verfahren zum Bereitstellen von erhitztem Leim für eine Etikettiermaschine mittels eines Heißleimwerks beschrieben, wobei das Verfahren umfasst, dass der Leim in einem Leimbehälter erhitzt wird und der erhitzte Leim zu einer Leimwalze innerhalb eines Gehäuses transportiert wird, wobei eine Filtereinheit vorgesehen ist, die mittels einer Absaugung Gase aus dem Inneren des Gehäuses absaugt und filtert, bevor diese Gase das Heißleimwerk verlassen, wobei das Heißleimwerk eines gemäß obigen Ausführungsformen ist.For better clarification of the hot glue unit according to the invention, a method for providing heated glue for a labeling machine by means of a hot glue unit is also described, the method comprising that the glue is heated in a glue container and the heated glue is transported to a glue roller inside a housing, wherein a filter unit is provided, which sucks and filters gases from the interior of the housing by means of a suction device before these gases leave the hot-melt unit, wherein the hot-melt unit is one according to the above embodiments.
Der Leimschaber schabt den erhitzten Leim von der Leimwalze ab und übertragt den erhitzten Leim auf ein Etikett, das anschließend auf einen zu etikettierenden Behälter appliziert wird.The glue scraper scrapes the heated glue from the glue roller and transfers the heated glue to a label, which is then applied to a container to be labeled.
In einer Weiterbildung dieser Ausführungsform kann vorgesehen sein, dass der zu etikettierende Behälter nicht verschlossen ist, wenn er etikettiert wird. Durch die Absaugung der beim Erwärmen des Leims entstehenden Gase kann eine Kontamination insbesondere des Innenraums des Behälters vermieden werden.In a further development of this embodiment it can be provided that the container to be labeled is not closed when it is being labeled. Contamination of the interior of the container in particular can be avoided by extracting the gases produced when the glue is heated.
Weiterhin kann die Filtereinheit eine Filterpatrone und einen Auffangbehälter umfassen, wobei sich in der Filterpatrone bildendes Kondensat in den Auffangbehälter über eine Verbindung von Filterpatrone und Auffangbehälter abläuft.Furthermore, the filter unit can comprise a filter cartridge and a collection container, with condensate forming in the filter cartridge draining into the collection container via a connection between the filter cartridge and collection container.
In einer Ausführungsform werden die Gase aus dem Inneren des Gehäuses durch eine Absaugöffnung der Absaugung abgesaugt, die an einer zweiten Seitenfläche angeordnet ist, die von einer ersten Seitenfläche, in der eine Frischluftöffnung angeordnet ist, durch die Luft in das Gehäuse einströmt, verschieden ist. Dies gewährleistet eine möglichst vollständige Zirkulation der Gase innerhalb des Gehäuses, sodass sich nur kleine, bevorzugt keine Totbereiche bilden, aus denen die Gase nicht abgesaugt werden können.In one embodiment, the gases are extracted from the interior of the housing through a suction opening of the suction arranged on a second side surface different from a first side surface in which a fresh air opening is arranged through which air flows into the housing. This ensures that the gases circulate as completely as possible within the housing, so that only small, preferably no, dead areas form from which the gases cannot be extracted.
Es kann ferner vorgesehen sein, dass das aus dem Inneren des Gehäuses abgesaugte Gas einen Strömungskanal innerhalb der Filterpatrone durchläuft, der optional gekühlt wird. Ein möglichst vollständiges Kondensieren von verdampften Bestandteilen des Heißleims und damit verbundene Rückführung in einen etwaigen Auffangbehälter der Filtereinheit kann so gewährleistet werden.It can also be provided that the gas sucked out of the interior of the housing runs through a flow channel inside the filter cartridge, which is optionally cooled. The most complete possible condensation of vaporized components of the hot melt and the associated return to a possible collection container of the filter unit can thus be ensured.
Weiterhin kann vorgesehen sein, dass die aus dem Inneren des Gehäuses abgesaugten Gase erst einen Tropfenabscheider passieren, in dem in den Gasen kondensierte Kondensattropfen abgeschieden und dem Auffangbehälter zugeführt werden, und anschließend die Filterpatrone passieren.Furthermore, it can be provided that the gases extracted from the interior of the housing first pass through a droplet separator, in which condensate droplets condensed in the gases are separated and fed to the collection container, and then pass through the filter cartridge.
Weiterhin kann das Verfahren umfassen, dass Behälter aus einer Blasformmaschine einer Etikettiermaschine zugeführt werden und mit einem mit heißem Leim beaufschlagten Etikett versehen werden oder mit heißem Leim beaufschlagt werden, wobei der heiße Leim gemäß dem erfindungsgemäßen Verfahren bereitgestellt wird, und anschließend einem Füller und/oder Verschleißer zugeführt werden.Furthermore, the method can include that containers are fed from a blow molding machine to a labeling machine and are provided with a label to which hot glue has been applied or hot glue has been applied, the hot glue being provided according to the method according to the invention, and then a filler and/or Wearers are supplied.
Es ist ferner eine Behälterbehandlungsanlage zum Behandeln von Behältern wie Flaschen in der getränkeverarbeitenden Industrie vorgesehen, wobei die Behälterbehandlungsanlage in Transportrichtung der Behälter eine Blasformmaschine, eine Etikettiermaschine und einen Füller umfasst, wobei die Etikettiermaschine die Etikettiermaschine der vorangegangenen Ausführungsform ist.A container treatment system for treating containers such as bottles in the beverage processing industry is also provided, the container treatment system comprising a blow molding machine, a labeling machine and a filler in the transport direction of the containers, the labeling machine being the labeling machine of the previous embodiment.
- Fig. 11
- zeigt eine schematische Außenansicht des Heißleimwerks gemäß einer Ausführungsform,shows a schematic external view of the hot melt unit according to one embodiment,
- Fig. 22
-
zeigt einen Schnitt durch das Heißleimwerk aus
Fig. 1 ,shows a section through the hot melt unit1 , - Fig. 33
-
zeigt einen Schnitt in einer Ebene senkrecht zur Schnittebene der
Fig. 2 durch das Heißleimwerk gemäßFig. 1 ,shows a section in a plane perpendicular to the section plane2 by the hot melt unit according to1 , - Fig. 44
- zeigt eine weitere Ausführungsform des Heißleimwerks.shows a further embodiment of the hot melt unit.
Das Gehäuse ist, bis auf eine eventuelle Frischluftzufuhr, im Wesentlichen geschlossen. Mit dem Gehäuse ist erfindungsgemäß eine Filtereinheit 110 verbunden. Diese Filtereinheit umfasst eine Absaugung 102, mit der Luft über eine geeignete Absaugöffnung (hier nicht dargestellt) direkt aus dem Gehäuse abgesaugt werden kann. Die Absaugung 102 ist zu diesem Zweck direkt mit dem Inneren des Gehäuses verbunden, beispielsweise über die bereits erwähnte Absaugöffnung. Bevorzugt sind das Gehäuse und die Absaugung so ausgebildet, dass außer über die Absaugung 102 keinerlei Gase das Gehäuse verlassen können. Das Gehäuse zusammen mit der Absaugung kann somit als ein im Wesentlichen geschlossenes System betrachtet werden.Except for a possible fresh air supply, the housing is essentially closed. According to the invention, a
Die Filtereinheit umfasst ferner ein Filterpatrone 103 und einen Auffangbehälter 104. Die Filterpatrone ist mit Bezug auf eine durch die Absaugung vorgegebene Strömungsrichtung der Gase aus dem Gehäuse stromab der Absaugung angeordnet und zwar derart, dass die mittels der Absaugung 102 aus dem Inneren des Gehäuses abgesaugten Gase der Filterpatrone 103 zugeführt werden.The filter unit also includes a
In der Filterpatrone können die Gase dann beispielsweise einen Strömungskanal durchlaufen und anschließend über eine Austrittsöffnung 105 das Heißleimwerk 100 verlassen.In the filter cartridge, the gases can then, for example, pass through a flow channel and then leave the hot-
Mit der Filterpatrone ist ebenfalls ein Auffangbehälter 104 verbunden. Dieser ist derart mit der Filterpatrone verbunden, dass Kondensat aus dem Strömungskanal der Filterpatrone oder allgemein aus einem Bereich, in dem Gase in der Filterpatrone kondensieren, in den Auffangbehälter geführt wird. Dazu können beispielsweise kleine Poren oder andere Öffnungen an geeigneten Stellen in der Filterpatrone vorgesehen sein, durch die Flüssigkeit in den Auffangbehälter 104 gelangen kann.A
Die Saugkraft der Absaugung sowie die Leistungsfähigkeit der Filterpatrone und das Fassungsvermögen des Auffangbehälters 104 können in Abhängigkeit der übrigen Systemparameter, insbesondere in Abhängigkeit von der Gesamtmenge an erwärmtem Leim (beispielsweise eine gewisse Leimmenge pro Stunde) gewählt werden. So kann die Absaugung ausgebildet sein, eine Luftströmung mit einem Durchsatz von 10 Litern/Minute oder 5 Litern/Minute aber auch mehr oder weniger zu ermöglichen. Die Filterpatrone muss dann einen entsprechenden Durchsatz ermöglichen und der Auffangbehälter kann beispielsweise ein Volumen von bis zu 500 ml aufweisen. Je größer das Volumen des Auffangbehälters ist, desto seltener muss dieser geleert werden. Auch die Filterpatrone muss bei geeigneter Dimensionierung nur selten gewechselt werden. Da diese Wechselarbeiten jedoch bei längerem Betrieb unvermeidlich sind, kann in einer Ausführungsform vorgesehen sein, dass die Filterpatrone und/oder der Auffangbehälter schnell wechselbar mit der Filtereinheit 110 verbunden sind, so dass sie mit nur geringem zeitlichen und geringem mechanischen Aufwand aus der Filtereinheit entfernt und durch neue Filterpatronen bzw. Auffangbehälter ersetzt werden können.The suction power of the suction and the performance of the filter cartridge and the capacity of the collecting
Bevorzugt kann der Zustand der Filtereinheit überwacht werden. So können geeignete Sensoren, wie beispielsweise Drucksensoren mit der Filtereinheit verbunden sein, die den Differenzdruck vor und nach der Filtereinheit messen. Die Messergebnisse können beispielsweise auf einer Steuereinheit (insbesondere Display der Steuereinheit) angezeigt oder anderweitig mittels eines Computers oder ähnlicher Einrichtung zur Datenverarbeitung verarbeitet werden. Auch andere Verfahren zum Messen bestimmter Charakteristika, wie induktive, optische oder kapazitive Verfahren sind hier möglich. Die gewonnenen Messwerte werden genutzt, um festzustellen, ob der Filter bzw. die Filterpatrone bereits durch Kondensat des Leims zugesetzt bzw. verstopft ist. Wird dies festgestellt, kann der Bediener zum Wechsel oder zum Reinigen der Filterpatrone aufgefordert werden.The status of the filter unit can preferably be monitored. Thus, suitable sensors, such as pressure sensors, can be connected to the filter unit, which measure the differential pressure before and after the filter unit. The measurement results can, for example, be displayed on a control unit (in particular the display of the control unit) or otherwise processed using a computer or similar device for data processing. Other methods for measuring certain characteristics, such as inductive, optical or capacitive methods are also possible here. The measured values obtained are used to determine whether the filter or the filter cartridge is already clogged or clogged by the glue condensate. If this is determined, the operator can be prompted to change or clean the filter cartridge.
Hier ist auch denkbar, dass ein zukünftiger Zustand des Filters bzw. der Filterpatrone anhand der Messwerte und/oder eines geeigneten Durchfluss- und Kondensationsmodells für die Filterpatrone für einen zukünftigen Zeitpunkt vorhergesagt wird und beispielsweise eine automatische Bestellung einer neuen Filterpatrone durch die Etikettiermaschine bzw. eine ihr zugeordnete Steuereinheit, wie einen Computer über das Internet oder eine andere Datenverbindung erfolgt. Auch können Wartungsintervalle basierend auf dem vorhergesagten, zukünftigen Zustand ermittelt und einem Bediener mitgeteilt werden.Here it is also conceivable that a future state of the filter or the filter cartridge is predicted for a future point in time based on the measured values and/or a suitable flow and condensation model for the filter cartridge and, for example, an automatic ordering of a new filter cartridge by the labeling machine or a its associated control unit, such as a computer via the Internet or other data connection. Maintenance intervals can also be determined based on the predicted, future state and communicated to an operator.
Es kann alternativ oder zusätzlich auch vorgesehen sein, dass zumindest der Auffangbehälter über eine Ablassöffnung verfügt, über die in bestimmten Zeitintervallen Kondensat abgelassen werden kann. So kann beispielsweise bei Erreichen eines Füllstands von 80 % der Bediener über eine Steuereinheit (beispielsweise ein Computer) darauf hingewiesen werden, dass der Auffangbehälter geleert oder gewechselt werden muss. Hierzu kann beispielsweise ein Füllstandssenor im Auffangbehälter vorgesehen sein. Dieser kann mechanisch möglichst einfach in Form eines Schwimmers ausgebildet sein.Alternatively or additionally, it can also be provided that at least the collection container has a drain opening through which condensate can be drained at specific time intervals. For example, when the filling level reaches 80%, the operator can be informed via a control unit (e.g. a computer) that the collection container must be emptied or changed. For this purpose, for example, a filling level sensor can be provided in the collection container. This can be mechanically as simple as possible in the form of a float.
Ferner ist in dieser Figur die Frischluftöffnung 223 im Gehäuse 101 dargestellt. Diese befindet sich auf einer Seite 230 des Gehäuses 101, beispielsweise auf der einen Seite der Leimwalze 222. An der Seitenfläche 231 ist in dieser Darstellung die Absaugöffnung 224 gezeigt, mit deren Hilfe die Absaugung Gase aus dem Gehäuse absaugen kann. Wie zu erkennen, sind Frischluftöffnungen 223 und Austrittsöffnungen 224 an unterschiedlichen Seitenflächen des Gehäuses vorgesehen. Der sich so ergebende Strömungsweg der Gase erfasst damit möglichst alle Bereiche innerhalb des Gehäuses. Besonders vorteilhaft kann eine Anordnung der Absaugöffnung 224 auf der von der Leimwalze aus gesehen gegenüberliegenden Seitenfläche des Gehäuses zu der Seitenfläche, in der die Frischluftöffnung 223 vorgesehen ist, sein. Es können auch mehrere Absaugöffnungen vorgesehen sein, um "Totbereiche", aus denen Gase nur wenig effektiv angesaugt werden können, zu vermeiden.The
Die Absaugung kann im Bereich der Absaugöffnung 224 aber auch stromab der Absaugöffnung 224, aber zumindest stromauf der Filterpatrone einen Ventilator umfassen, dessen Drehsinn so ausgerichtet ist, dass er Gase aus dem Gehäuse 101 durch die Absaugöffnung absaugt und der Filterpatrone 103 zuführt. Die Absaugöffnung oder ein sich daran unmittelbar anschließender Kanal kann dabei mit einem Strömungskanal der Filterpatrone verbunden sein, so dass die durch die Absaugöffnung hindurchtretenden Gase die Filterpatrone erreichen.In the area of
In
Wie bereits weiter oben beschrieben, kann es vorteilhaft sein, den Füllstand des Auffangbehälters bestimmen zu können und basierend darauf beispielsweise mit Hilfe einer Steuereinheit den Bediener auf ein Leeren oder Wechseln des Auffangbehälters 104 hinzuweisen. Hierzu kann die Halterung 352 vorteilhaft als Wägezähler ausgebildet sein oder eine solche umfassen, sodass der Füllstand des Auffangbehälters aufgrund eines Vergleichs der Leergewichts des Auffangbehälters mit einem gemessenen Gewicht des Auffangbehälters ermittelt werden kann. Erreicht diese Differenz einen vorgegebenen Wert, beispielsweise 200 g, kann der Bediener zu einem Wechsel des Auffangbehälters aufgefordert werden.As already described above, it can be advantageous to be able to determine the filling level of the collection container and, based on this, to inform the operator that the
Die hier dargestellte Filterpatrone kann im Inneren einen schraubenförmigen Strömungskanal aufweisen, den das von der Absaugung aus dem Inneren des Gehäuses 101 abgesaugte Gas passieren muss, bevor es zu der Austrittsöffnung 105 gelangt. Während des Passierens des Strömungskanals 354 kühlt sich das Gas ab und kann auskondensieren, sodass Kondensate effektiv in der Filterpatrone verbleiben und in den Auffangbehälter 104 geführt werden können.The filter cartridge shown here can have a helical flow channel on the inside, through which the gas sucked out of the interior of the
Ferner ist schematisch im Bereich der Filterpatrone ein Kühlsystem 355 dargestellt. Dieses Kühlsystem kann nicht nur als Teil der Filtereinheit 103 ausgebildet sein, sondern kann auch vollständig oder teilweise in die Filterpatrone 103 integriert sein. Das Kühlsystem ist in einer Ausführungsform ausgebildet, zumindest den Strömungskanal 354 zu kühlen, was die Bildung von Kondensat begünstigt. Dieses Kondensat besteht üblicherweise aus den Ausgasungen des Heißleims, die unweigerlich bei der Erwärmung des Heißleims entstehen. Durch gezieltes Abkühlen des den Strömungskanal 354 durchlaufenden Gasgemisches (bestehend aus Luft und den Gasen des Heißleims) kann eine möglichst vollständige Kondensation der Gase des Heißleims und damit einhergehende Trennung von der übrigen Luft gewährleistet werden, so dass ein effektives Abscheiden des Kondensats in den Auffangbehälter gewährleistet werden kann.Furthermore, a
Der Auffangbehälter selbst kann zusätzlich mit einem Heizelement (beispielsweise ein Infrarotstrahler oder Heizwendel) ausgestattet sein oder ihm kann ein Heizelement zugeordnet sein. Mit diesem Heizelement kann das sich in dem Auffangbehälter befindliche Kondensat im flüssigen Zustand gehalten werden, was ein Ablassen des Kondensats und damit ein Wiederverwenden des Auffangbehälters ermöglicht. Das Kühlsystem und das optional vorgesehene Heizelement können zum Zwecke der Energieeinsparung miteinander über ein gängiges Wärmetauschersystem verbunden sein, sodass die Abwärme des Heizelements zum Betreiben des Kühlsystems verwendet werden kann. Ferner können sowohl das Kühlsystem als auch das Heizelement über eine geeignete Steuereinheit, beispielsweise die zentrale Steuereinheit einer Etikettiermaschine, in der sich das Heißleimwerk befindet, gesteuert werden, so dass ihre jeweilige Leistung (also Kühlleistung und Heizleistung) abhängig von den übrigen Systemparametern gesteuert wird. Ist beispielsweise der Gasdurchfluss durch die Filterpatrone vergleichsweise gering, kann auch nur eine geringe Kühlleistung bewirkt werden. Steigt der Gasdurchfluss, kann die Kühlleistung geeignet erhöht werden. Ebenso kann das Heizelement so gesteuert werden, dass abhängig vom Füllstand des Auffangbehälters dessen Heizleistung erhöht wird. Damit kann gewährleistet werden, dass auch bei hohem Füllstand das Kondensat im Auffangbehälter möglichst flüssig bleibt und bei niedrigem Füllstand das Kondensat nicht unbeabsichtigt zu kochen beginnt oder zumindest eine erhebliche Dampfentwicklung einsetzt.The collecting container itself can additionally be equipped with a heating element (for example an infrared radiator or heating coil) or a heating element can be assigned to it. With this heating element, the condensate located in the collecting container can be kept in the liquid state, which allows the condensate to be drained and thus allows the collecting container to be reused. For the purpose of saving energy, the cooling system and the optionally provided heating element can be connected to one another via a common heat exchanger system, so that the waste heat from the heating element can be used to operate the cooling system. Furthermore, both the cooling system and the heating element can be controlled via a suitable control unit, for example the central control unit of a labeling machine in which the hot-melt unit is located, so that their respective output (i.e. cooling output and heating output) is controlled depending on the other system parameters. For example, if the gas flow through the filter cartridge is comparatively low, only a low cooling capacity can be achieved. If the gas flow increases, the cooling capacity can be suitably increased. The heating element can also be controlled in such a way that its heat output is increased depending on the filling level of the collection container. It can thus be ensured that the condensate in the collection container remains as liquid as possible even when the filling level is high, and that the condensate does not unintentionally start to boil or at least develop considerable steam when the filling level is low.
In der
Um die in der
Die Kühlung des Gehäuses 101 und/oder des Strömungskanals 354 kann allgemein durch einen doppelwandigen Aufbau gewährleistet werden, wobei in einen Zwischenraum in dem doppelwandigen Gehäuse beispielsweise über eine externe Luftzufuhr und/oder mittels eines (externen) Klimageräts kalte Luft geleitet werden kann, die die Gehäusewand und auch (indirekt) das Innere des Gehäuses und damit die beim Erhitzen des Leims entstehenden Gase kühlt. Die kalte Luft kann beispielsweise aus der Abluft einer Blasformmaschine, die mit der Etikettiermaschine zu einer Behälterbehandlungsanlage zusammengeschaltet (geblockt) ist, gewonnen werden. Auch Flüssigkühlung, beispielsweise unter Verwendung von Kühlwasser für Schaltschränke o.ä. ist hier denkbar. Ebenso kommen adiabatische Kühlungen in Betracht.The cooling of the
Als Filtermedien für die Filterpatrone kommen unterschiedliche Stoffe in Betracht. So können Kartonfilter, Papierfilter oder Filterwatte, aber auch Glasfaservlies, keramische Filter, Sintermetall, Stahlwolle, chemische Filterstoffe im Allgemeinen, Tiefenfilter, Elektrofilter, Wasserfilter oder Tropfenabscheider verwendet werden.Different substances can be considered as filter media for the filter cartridge. Cardboard filters, paper filters or filter floss, but also glass fiber fleece, ceramic filters, sintered metal, steel wool, chemical filter materials in general, depth filters, electrostatic precipitators, water filters or droplet separators can be used.
Zum möglichst vollständigen Neutralisieren unangenehmer Gerüche im Bereich der Etikettiermaschine können ferner bevorzugt Kohlefilter zum Einsatz kommen. Der Filter, insbesondere die Filterpatrone kann auch mit einem Reinigungssystem (Rückspülung beispielsweise) verbunden sein, um ein Verstopfen der Filterpatrone möglichst lang zu verhindern. Die Rückspülung kann zum Beispiel in bestimmten zeitlichen Abständen oder je nach Zustand des Filters (näheres zu dessen Bestimmung wurde oben erläutert) das Filtermedium oder die gesamte Filterpatrone mit einem geeigneten Spülmedium, bevorzugt einem Medium, in dem sich sämtliche Rückstände des Leims lösen, spülen, womit Rückstände entfernt werden können. Hier kann an Wasser oder spezialisierte Lösungsmittel gedacht sein. Das Spülmedium mit den ggf. gelösten Leimresten kann dem Auffangbehälter 104 zugeführt werden. Dies ist besonders von Vorteil, da so die weiteren Leimreste im Auffangbehälter von einem Aushärten abgehalten werden können. Erfindungsgemäß kann ferner vorgesehen sein, dass die Filterpatrone und der Auffangbehälter nicht unmittelbar miteinander verbunden sind und die Filterpatrone sich nicht direkt an das Gehäuse anschließt. Hierzu zeigt
In dieser Ausführungsform führt ein Rohr 470 aus dem Gehäuse 101. Das Rohr 470 weist eine U-Form auf, wobei der Auffangbehälter 104 mit dem tiefsten Punkt der U-Form verbunden ist. Damit wird das Ablaufen des Kondensats begünstigt. Das Rohr kann beispielsweise aus einem Kunststoff oder einem Metall bestehen und kann bevorzugt mittels eines 3D-Druckverfahrens hergestellt werden.In this embodiment, a
Weiterhin kann vorgesehen sein, dass die innere Oberfläche des Rohres Prallbleche, Prallsiebe oder Rippen umfasst, sodass die Kondensation der Gase durch eine erhöhte Oberfläche begünstigt wird. Weiterhin kann die innere Oberfläche des Rohres mit einer lipophoben Beschichtung versehen sein. So kann das Ablaufen des Kondensats an der Oberfläche des Rohres begünstigt werden. Hierzu zählen nicht nur geeignete Beschichtungen, auch ein Polieren oder Versiegeln sowie andere Oberflächenvergütungen können diesen Effekt bewirken.Furthermore, it can be provided that the inner surface of the tube comprises baffle plates, impact screens or ribs, so that the condensation of the gases is promoted by an increased surface. Furthermore, the inner surface of the tube can be provided with a lipophobic coating. In this way, the drainage of the condensate on the surface of the pipe can be promoted. This not only includes suitable coatings, but also polishing or sealing as well as other surface finishes can have this effect.
Das Rohr kann an der äußeren Oberfläche Verrippungen aufweisen und/oder doppelwandig ausgeführt sein. So kann die Kühlung des Innenraums begünstigt und damit ein Kondensieren der Gase besser erreicht werden.The tube can have ribbing on the outer surface and/or be double-walled. In this way, the cooling of the interior can be promoted and the gases can be better condensed.
Das Rohr kann auch eine weitere, hier nicht dargestellte Bypassstrecke aufweisen, die mit dem Leimbehälter 480 verbunden ist und zumindest in einen Bereich in das Rohr mündet, der stromauf des Auffangbehälters 104 angeordnet ist. So können beim Erhitzen des Leims im Leimbehälter 480 entstehende Gase unmittelbar abgesaugt und dem Auffangbehälter zugeführt werden.The tube can also have a further bypass section, not shown here, which is connected to the
Weiterhin kann stromauf der Filterpatrone ein hier nicht dargestellter Tropfenabscheider gemäß einer oder mehreren oben beschriebenen Ausführungsformen vorgesehen sein. Dieser kann beispielsweise im "absteigenden" Ast 471 des U-förmigen Rohres 470 angeordnet sein und eine Verbindung mit dem Auffangbehälter 104 aufweisen, sodass in dem Tropfenabscheider aufgefangenes Kondensat in den Auffangbehälter geleitet werden kann.Furthermore, a droplet separator (not shown here) according to one or more embodiments described above can be provided upstream of the filter cartridge. This can be arranged, for example, in the "descending"
Die nach der Filterpatrone 104 eventuell vorgesehenen zusätzlichen Vorrichtungen wie Ventilatoren können analog zu obigen Ausführungsformen vorgesehen sein.The additional devices that may be provided after the
Das Rohr und sämtliche weiteren Komponenten der in
Während hier nicht dargestellt, kann dennoch vorgesehen sein, dass das Gehäuse 101 nicht vollständig "blickdicht" ist. Zwar ist grundsätzlich eine robuste Ausführung des Gehäuses, beispielsweise aus Stahl bevorzugt. Jedoch kann zur Überwachung der Abläufe innerhalb des Gehäuses (insbesondere Wechselwirkung zwischen Leimwalze und Leimschaber und Übertragung des Leims auf die Etiketten mittels des Leimschabers) vorgesehen sein, dass das Gehäuse zumindest teilweise transparent ausgebildet ist, insbesondere ein Sichtfenster umfasst. Das Sichtfenster kann zum Öffnen ausgebildet sein, wobei dieses Öffnen bevorzugt nicht im Betrieb möglich ist, um das Austreten eventuell gesundheitsgefährdender Gase zu vermeiden. Daher kann das Sichtfenster mit einem geeigneten Detektor, beispielsweise in Form eines Magnetschalters oder Ultraschallsensors verbunden sein, der das Öffnen oder den Versuch des Öffnens des Sichtfensters registriert und ein Abschalten der Etikettiermaschine und des Heißleimwerks bewirkt.While not shown here, it can nevertheless be provided that the
Insgesamt ist das erfindungsgemäße Heißleimwerk zusammen mit dessen Filtereinheit so ausgebildet, dass die am Ende aus der Filtereinheit in die Umgebung ausgelassene Luft (also nach Reinigung in der Filterpatrone) Atemluftqualität, bevorzugt sogar Reinraumqualität aufweist.Overall, the hot melt unit according to the invention, together with its filter unit, is designed such that the air released from the filter unit into the environment (ie after cleaning in the filter cartridge) has breathing air quality, preferably even clean room quality.
Die hier beschriebenen Ausführungsformen können sämtlichst sowohl in separat ausgeführten Etikettiermaschinen aber auch in "geblockten" Etikettiermaschinen eingesetzt werden. Letztere werden im Rahmen von Behälterbehandlungsanlagen zusammen mit einer vorgeschalteten (stromauf in Transportrichtung der Behälter angeordneten) Blasformmaschine oder anderer Vorrichtung zum Herstellen von Behältern und einem nachgeschalteten (stromab in Transportrichtung der Behälter angeordneten) Füller und/oder Verschließer betrieben.The embodiments described here can all be used both in separately designed labeling machines but also in "blocked" labeling machines. The latter are operated in container treatment plants together with an upstream (arranged upstream in the transport direction of the container) blow molding machine or other device for manufacturing containers and a downstream filler and/or capper (arranged downstream in the transport direction of the container).
Claims (12)
- Hot glue unit (100) for a labeling machine in the beverage processing industry, comprising at least a glue roller and a glue container as well as a housing (101) in which said glue roller (222) is arranged and a glue scraper for scraping glue from said glue roller (222) and transferring said glue onto a label, where said glue scraper is disposed in said housing (101), characterized in that said hot glue unit (100) comprises a filter unit (110) with an extractor (102) connected to said housing (101) which can extract gases from the interior of said housing and supply them to said filter unit before the gases can exit said hot glue unit.
- Hot glue unit according to claim 1, where said filter unit (110) further comprises a filter cartridge (103) and a collection tank (104), where said filter cartridge and said collection tank are connected to each other such that condensate developing in said filter cartridge can drain into said collection tank.
- Hot glue unit according to claim 1 or 2, where said housing comprises a fresh air opening (223) which is arranged on a first side surface (230) of said housing and where said extractor comprises an extraction opening (224) through which gases can be extracted from the interior of said housing, where said extraction opening is arranged at a second side surface (231) of said housing.
- Hot glue unit according to claim 3, where said second side surface (231) and said first side surface (230) are opposite to each other or at least separated from each other by two further side surfaces.
- Hot glue unit according to claim 2, where said filter cartridge (103) and/or said collection tank (104) are configured to be quickly exchangeable.
- Hot glue unit according to one of the claims 2 to 5, where said filter cartridge comprises a flow channel for the gas extracted from the interior of said housing which is longer than the maximum extension of the filter cartridge in at least one direction.
- Hot glue unit according to claim 6, where said flow channel (354) is helically wound and/or where said filter unit (110) comprises a cooling system (355) for cooling said flow channel (354).
- Hot glue unit according to one of the claims 1 to 7, where said extractor (102) comprises at least one fan disposed upstream or downstream of said filter cartridge (103).
- Hot glue unit according to claim 8, where said extractor (102) comprises two fans (351), one being disposed upstream and one downstream of said filter cartridge (103).
- Hot glue unit according to one of the claims 1 to 9, where an outlet opening is arranged downstream of said filter cartridge (103) through which filtered air can exit said filter cartridge (103).
- Labeling machine for labeling containers such as bottles in the beverage processing industry, characterized in that said labeling machine comprises a hot glue unit (100) according to one of the claims 1 to 10 for applying hot glue onto said labels.
- Container treatment system for treating containers such as bottles in the beverage processing industry, comprising in the direction of transport of said containers a blow molding machine, a labeling machine and a filler, where said labeling machine is the labeling machine according to claim 11.
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Publication number | Priority date | Publication date | Assignee | Title |
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EP0579984A2 (en) * | 1992-06-30 | 1994-01-26 | Cms Gilbreth Packaging Systems, Inc. | Apparatus and method for applying labels onto small cylindrical articles |
EP2476624A1 (en) * | 2011-01-12 | 2012-07-18 | Krones AG | Gluing unit with detachable glue tank and connectable cleaning unit |
Also Published As
Publication number | Publication date |
---|---|
CN209241527U (en) | 2019-08-13 |
US20190070628A1 (en) | 2019-03-07 |
DE202017105400U1 (en) | 2018-12-10 |
US11318492B2 (en) | 2022-05-03 |
EP3456644A1 (en) | 2019-03-20 |
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