EP3456644A1 - Hot glueing device with suction for a labelling machine - Google Patents

Hot glueing device with suction for a labelling machine Download PDF

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Publication number
EP3456644A1
EP3456644A1 EP18183139.7A EP18183139A EP3456644A1 EP 3456644 A1 EP3456644 A1 EP 3456644A1 EP 18183139 A EP18183139 A EP 18183139A EP 3456644 A1 EP3456644 A1 EP 3456644A1
Authority
EP
European Patent Office
Prior art keywords
housing
glue
filter cartridge
hot glue
suction
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
Application number
EP18183139.7A
Other languages
German (de)
French (fr)
Other versions
EP3456644B1 (en
Inventor
Benjamin Aumer
Elmar Reese
Gabriel Seibold
Konrad Senn
Soeren Meissner
Christian Holzer
Bernd Schroll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Krones AG
Original Assignee
Krones AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Krones AG filed Critical Krones AG
Publication of EP3456644A1 publication Critical patent/EP3456644A1/en
Application granted granted Critical
Publication of EP3456644B1 publication Critical patent/EP3456644B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • 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 glue unit for a labeling machine according to the preamble of claim 1 and to a labeling machine for labeling containers according to the preamble of claim 12.
  • Hot melt plants in connection with labeling machines in the beverage processing industry are known from the prior art.
  • FIG. 1 shows the DE 20 2016 104 049 U1 a hot glue unit, which is associated with a trigger for sucking glue vapors from a glue roller.
  • the technical problem to be solved is thus to provide a hotmelt unit which enables a suction of the vapors produced during heating of the hotmelt reliably and with reduced energy requirement.
  • the hot glue unit according to the invention for a labeling machine in the beverage processing industry comprises at least one glue roller and a glue container and a housing in which the glue roller is arranged and is characterized in that the hot glue unit Includes filter unit connected to the housing with an exhaust, which can suck gases from the interior of the housing and the filter unit can supply before the gases can leave the hot glue unit.
  • the construction of the housing with the filter unit and the suction is to be understood that the air from the interior of the housing first, at least with activated suction the filter unit must pass before it can escape at all into the environment outside the housing.
  • the filter unit further comprises a filter cartridge and a collecting container, wherein the filter cartridge and the collecting container are connected to each other so that a condensate forming in the filter cartridge can drain into the collecting container.
  • the filter cartridge and the collecting container are connected to each other so that a condensate forming in the filter cartridge can drain into the collecting container.
  • the housing comprises a fresh air opening, which is arranged on a first side surface of the housing and wherein the suction device comprises a suction opening through which gases can be sucked out of the interior of the housing, wherein the suction opening at a second side surface of the housing is arranged.
  • the resulting draft from the fresh air opening to the suction detected as possible all the gases within the housing, so that an effective suction can take place.
  • the second side surface and the first side surface are opposite one another or at least separated from one another by two further side surfaces.
  • the effect of the previous embodiment can be increased even more.
  • the filter cartridge and / or the collecting container are formed quickly changeable.
  • the hot glue unit it will inevitably lead to contamination of the filter cartridge and the continuous filling of the collecting container, which makes a change required. Downtimes can be minimized by the quickly exchangeable design of these components.
  • the filter cartridge and / or the collecting container with the filter unit or more generally the hotmelt unit are connected such that no tools for releasing the connections are needed. These include, for example, click or plug connections.
  • the entire filter unit can be quickly exchanged and, in particular, disassembled from the hotmelt unit.
  • any connections of the filter unit with the housing can be designed to be detachable without tools.
  • 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 automatically or automatically.
  • self-centering elements can be advantageously used so that the media channels to be connected can be connected as simply and reliably as possible.
  • the filter cartridge comprises a flow channel for the sucked from the interior of the housing gas, which is longer than the maximum extent of the filter cartridge in at least one direction.
  • the flow channel is longer than this 10 cm. Ensuring the longest possible flow channel ensures that parts of the gas mixture that pass through it condense and are reliably collected in the collecting container and can not escape into the environment.
  • the flow channel is helically wound and / or the filter unit comprises a cooling system for cooling the flow channel. Both variants ensure the most complete possible condensation in the housing forming gases.
  • 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 produced in the housing are extracted.
  • two fans are provided, one upstream and one downstream of the filter cartridge. Possibly occurring turbulences within the filter cartridge, which could prevent further flow of the gases can be compensated by the downstream fan, 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 out from the filter cartridge can escape.
  • the hot glue unit comprises 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.
  • hot glue is heated in a hot glue unit for a labeling and thereby emerging gases are sucked out of a housing in which a glue roller and a glue container are arranged, sucked through a suction of a filter unit and fed to the filter unit, before the gases leave the hotmelt plant.
  • a filter cartridge and a collecting container of the filter unit are connected to each other so that the forming in the filter cartridge condensate drains into the receptacle.
  • the air is sucked out of the housing from a suction opening in a second side face and fresh air enters the housing through a fresh air opening in a first side face.
  • a mist eliminator is arranged, which is connected to the collecting container.
  • condensate droplets can be separated from the gas mixture before they reach the filter cartridge, whereby clogging of the filter cartridge and thus necessary stopping the labeling can be avoided longer.
  • the gases from the housing pass through the filter cartridge along a flow channel which is helically wound, for example, or wherein Cooling system is provided which cools the flow channel, at least during the passage of gases.
  • a method of providing heated glue to a labeller by means of a hot glue unit comprising heating the glue in a glue box and transporting the heated glue to a glue roller within a housing, wherein a filter unit is provided, which extracts and filters gases from the interior of the housing by means of a suction, before these gases leave the hotmelt unit, the hotmelt unit being one according to the above embodiments.
  • a glue scraper abrades the heated glue from the glue roller and transfers the heated glue to a label, which is subsequently applied to a container to be labeled, and / or the heated glue to a container to be labeled.
  • the container to be labeled is not closed when it is labeled.
  • the filter unit may comprise a filter cartridge and a collecting container, with condensate forming in the filter cartridge discharging into the collecting container via a connection between the filter cartridge and the collecting container.
  • the gases are evacuated from the interior of the housing through an exhaust port of the exhaust disposed on a second side surface different from a first side surface in which a fresh air port is disposed through which air flows into the housing. This ensures as complete as possible a circulation of the gases within the housing, so that only small, preferably no dead zones form, from which the gases can not be sucked off.
  • the gas extracted from the interior of the housing passes through a flow channel within the filter cartridge, which is optionally cooled.
  • the most complete possible condensation of evaporated constituents of the hot glue and the associated return to a possible collecting container of the filter unit can thus be ensured.
  • the gases sucked out of the interior of the housing first pass through a droplet separator, in which condensate droplets condensed in the gases are deposited and supplied to the collecting container, and then the filter cartridge is passed.
  • the method may comprise feeding containers from a blow molding machine to a labeling machine and providing them with a hot glue-applied label or hot glue, the hot glue being provided according to the method of the invention, and then a filler and / or Wearer be supplied.
  • a container treatment plant for treating containers such as bottles in the beverage processing industry, wherein the container treatment plant in the transport direction of the container comprises a blow molding machine, a labeling machine and a filler, wherein the labeling machine is the labeling machine of the preceding embodiment.
  • Fig. 1 shows a schematic view of a hot glue unit 100 according to an embodiment of the invention.
  • the hot glue unit is provided with a housing 101.
  • a glue roller is arranged. These are not shown here, but are in Fig. 2 explained in more detail.
  • the glue roller may also be associated with a glue scraper in the housing to remove the glue from the glue roller.
  • the housing is substantially closed, except for a possible supply of fresh air.
  • a filter unit 110 is connected to the housing according to the invention.
  • This filter unit comprises an exhaust 102, with the air via a suitable suction opening (not shown here) can be sucked directly from the housing.
  • the suction 102 is connected for this purpose directly to the interior of the housing, for example via the already mentioned suction opening.
  • the housing and the suction are designed so that except for the suction 102 no gases can leave the housing.
  • the housing together with the suction can thus be considered as a substantially closed system.
  • the filter unit further comprises a filter cartridge 103 and a collecting container 104.
  • the filter cartridge is arranged with respect to a predefined by the suction flow direction of the gases from the housing downstream of the suction in such a way that extracted by means of the suction 102 from the interior of the housing gases the filter cartridge 103 are supplied.
  • the gases can then, for example, pass through a flow channel and then leave the hotmelt unit 100 via an outlet opening 105.
  • a collecting container 104 is connected. This is connected to the filter cartridge so that condensate from the flow channel of the filter cartridge or generally from a region in which gases condense in the filter cartridge is fed into the collecting container.
  • a collecting container 104 is connected to the filter cartridge so that condensate from the flow channel of the filter cartridge or generally from a region in which gases condense in the filter cartridge is fed into the collecting container.
  • small pores or other openings may be provided at suitable locations in the filter cartridge, can pass through the liquid in the collecting container 104.
  • the suction 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 allow an air flow with a throughput of 10 liters / minute or 5 liters / minute but also more or less.
  • the filter cartridge must then allow a corresponding throughput and the collecting container may for example have a volume of up to 500 ml. The larger the volume of the collection container, the less often it must be emptied. Even the filter cartridge must be changed only rarely with suitable dimensioning.
  • the filter cartridge and / or the collecting container are rapidly connected to the filter unit 110, so that they with only a small temporal and little mechanical effort removed from the filter unit and can be replaced by new filter cartridges or drip tray.
  • the state of the filter unit can be monitored.
  • suitable sensors such as pressure sensors, may be connected to the filter unit which measure the differential pressure before and after the filter unit.
  • the measurement results can be displayed, for example, on a control unit (in particular display of the control unit) or otherwise processed by means of a computer or similar device for data processing.
  • Other methods for measuring certain characteristics such as inductive, optical or capacitive methods are possible here.
  • the measured values obtained are used to determine whether the filter or the filter cartridge is already clogged or blocked by condensate of the glue. If this is detected, the operator may be prompted to change or clean the filter cartridge.
  • a future state of the filter or the filter cartridge is predicted on the basis of the measured values and / or a suitable flow and condensation model for the filter cartridge for a future time and, for example, an automatic order of a new filter cartridge by the labeling or a its associated control unit, such as a computer via the Internet or another data connection.
  • maintenance intervals may be determined based on the predicted future state and communicated to an operator.
  • At least the collecting container has a discharge opening, via which condensate can be drained off at specific time intervals.
  • a control unit for example a computer
  • the collecting container must be emptied or replaced.
  • a level sensor may be provided in the collecting container. This can be formed as mechanically as possible in the form of a float.
  • Fig. 2 shows a section through the hot glue mill according to the Fig. 1 ,
  • the hot glue unit inside the housing 101 comprises a glue roller 222 from which glue can exit and can be deposited via the glue scraper 221.
  • the glue roller can be rotated.
  • the fresh air opening 223 is shown in the housing 101. This is located on a side 230 of the housing 101, for example on one side of the glue roller 222. On the side surface 231, the suction opening 224 is shown in this illustration, with the aid of which the suction can suck gases from the housing. As can be seen, fresh air openings 223 and exit openings 224 are provided on different side surfaces of the housing. The resulting flow path of the gases thus captures as far as possible all areas within the housing. Particularly advantageous may be an arrangement of the suction opening 224 on the side facing away from the glue roller side surface of the housing to the side surface in which the fresh air opening 223 is provided, be. It can also be provided several suction to "dead zones" from which gases can be sucked only a little effective, to avoid.
  • the suction can in the region of the suction opening 224 but also downstream of the suction opening 224, but at least upstream of the filter cartridge comprise a fan whose direction of rotation is aligned so that it sucks gases from the housing 101 through the suction and the filter cartridge 103 feeds.
  • the suction opening or a channel adjoining it can in this case be connected to a flow channel of the filter cartridge, so that the gases passing through the suction opening reach the filter cartridge.
  • Fig. 3 is schematically shown a section through the hot gluing unit. This section is perpendicular to the in Fig. 2 Section shown and passes through the collecting container or the filter cartridge 103 therethrough. To recognize here is the connection 353 of the suction with the filter cartridge 103 at the bottom or at least the outlet opening at the upper end of the filter cartridge opposite part to recognize. Below the filter cartridge 103, the collecting container 104 is arranged. This can be stored for example on the holder 352 shown.
  • the holder 352 can advantageously be designed as a weighing counter or comprise such that the filling 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 may be asked to change the collecting container.
  • the filter cartridge shown here may have a helical flow channel in the interior, which has to pass the suctioned gas from the interior of the housing 101 gas before it reaches the outlet opening 105. While passing the Flow channel 354, the gas cools and can condense, so that condensates effectively remain in the filter cartridge and can be guided into the collecting container 104.
  • a cooling system 355 is shown schematically in the region of the filter cartridge.
  • This cooling system may not only be formed as part of the filter unit 103, but may also be fully or partially integrated into the filter cartridge 103.
  • the cooling system in one embodiment, is configured 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 arise during the heating of the hot glue.
  • the collecting container itself may additionally be equipped with a heating element (for example an infrared radiator or heating coil) or it may be associated with a heating element. With this heating element, the condensate located in the collecting container can be kept in the liquid state, which allows a discharge of the condensate and thus a reuse of the collecting container.
  • the cooling system and the optionally provided heating element may be connected to each other via a common heat exchanger system for the purpose of energy saving, so that the waste heat of 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 glue unit is located, so that their respective power (ie cooling power and heating power) is controlled as a function of the other system parameters.
  • a suitable control unit for example the central control unit of a labeling machine in which the hot glue unit is located, so that their respective power (ie cooling power and heating power) is controlled as a function of the other system parameters.
  • a suitable control unit for example the central control unit of a labeling machine in which the hot glue unit is located, so that their respective power (ie cooling power and heating power) is controlled as a function of the other system parameters.
  • the gas flow through the filter cartridge is comparatively low, only a small cooling capacity can be effected. If the gas flow increases, the cooling capacity can be increased appropriately.
  • the heating element can be controlled so that depending on the level of the collecting container whose heating power is increased. This ensures that the condensate in the collecting tank remains as liquid
  • a further fan 351 indicated in the Fig. 3 is also downstream of the filter cartridge but before the outlet opening 105. This can suck in the air or the gas mixture from the filter cartridge and expel through the exit port 105 so that inadvertent turbulence within the filter cartridge does not adversely affect 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, a better separation of forming condensate can already be ensured in the droplet separator by means of this additional cooling, whereby blockage of the filter cartridge can be avoided.
  • the cooling of the housing 101 and / or the flow channel 354 can be generally ensured by a double-walled construction, wherein in a space in the double-walled housing, for example via an external air supply and / or by means of an (external) air conditioner cold air can be passed, the Housing wall and (indirectly) the interior of the housing and thus cools the resulting gas when heating the glue.
  • the cold air for example, from the exhaust air of a blow molding machine, which is interconnected with the labeling machine to a container treatment plant (blocked), are obtained.
  • liquid cooling for example, using cooling water for control cabinets or similar. is conceivable here. Likewise adiabatic cooling come into consideration.
  • filter media for the filter cartridge different substances come into consideration. So cardboard filters, paper filters or filter wadding, but also glass fiber fleece, ceramic filters, sintered metal, steel wool, chemical filter materials in general, depth filter, electrostatic precipitator, water filter or mist eliminator can be used.
  • carbon filters may furthermore preferably be used.
  • the filter in particular the filter cartridge can also be connected to a cleaning system (backwash example) to prevent clogging of the filter cartridge as long as possible.
  • the backwashing can, for example, at certain time intervals or depending on the condition of the filter (closer to its determination was explained above) the filter medium or the entire filter cartridge with a suitable rinsing medium, preferably a medium in which dissolve all residues of the glue, rinse, with which residues can be removed.
  • a suitable rinsing medium preferably a medium in which dissolve all residues of the glue, rinse, with which residues can be removed.
  • the flushing medium with the possibly dissolved glue residue can be supplied to the collecting container 104. This is particularly advantageous since the remaining glue residues in the collecting container can thus be prevented from curing.
  • the filter cartridge and the collecting container are not directly connected to each other and the filter cartridge does not connect directly to the housing.
  • Fig. 4 a possible embodiment.
  • a tube 470 leads out of the housing 101.
  • the tube 470 has a U-shape with the receptacle 104 connected to the lowest point of the U-shape. This favors the draining of the condensate.
  • the tube may for example consist of a plastic or a metal and may preferably be produced by means of a 3D printing process.
  • the inner surface of the tube comprises baffles, baffles or ribs, so that the condensation of the gases is promoted by an increased surface.
  • the inner surface of the tube may be provided with a lipophobic coating.
  • the drainage of the condensate on the surface of the tube can be favored.
  • the tube may have ribs on the outer surface and / or be double-walled.
  • the cooling of the interior favors and thus condensation of the gases can be better achieved.
  • the tube can also have a further, not shown here, bypass line, which is connected to the glue container 480 and at least into a region opens into the tube, which is arranged upstream of the collecting container 104.
  • bypass line which is connected to the glue container 480 and at least into a region opens into the tube, which is arranged upstream of the collecting container 104.
  • a droplet separator (not shown here) may be provided upstream of the filter cartridge. This may for example be arranged in the "descending" branch 471 of the U-shaped tube 470 and have a connection to the collecting container 104, so that condensate collected in the droplet separator can be conducted into the collecting container.
  • the pipe and all other components of in Figure 4 described embodiment may also include all means for cooling, as already described.
  • the tube may be double-walled and within this double wall, a cooling medium may circulate to promote condensation of the gases.
  • the housing 101 is not completely “opaque". Although in principle a robust design of the housing, for example made of steel is preferred. However, to monitor the processes within the housing (in particular interaction between glue roller and glue scraper and transfer of the glue to the labels by means of the glue scraper) can be provided that the housing is at least partially transparent, in particular comprises a viewing window.
  • the viewing window can be designed to open, but this opening is preferably not possible during operation to prevent the escape of potentially hazardous gases. Therefore, the viewing window can be connected to a suitable detector, for example in the form of a magnetic switch or ultrasonic sensor, which registers the opening or attempt to open the viewing window and causes the labeling machine and the hot glue unit to be switched off.
  • the hotmelt unit according to the invention together with its filter unit is designed so that the air discharged from the filter unit into the environment at the end (ie after cleaning in the filter cartridge) has breathing air quality, preferably even clean room quality.
  • the embodiments described here can be used all in both separately executed labeling machines and also in "blocked" labeling machines.
  • the latter are operated in the context of container treatment plants together with an upstream (arranged upstream in the transport direction of the container) blow molding machine or other device for producing containers and a downstream (arranged downstream in the transport direction of the container) filler and / or capper operated.

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  • Labeling Devices (AREA)
  • Coating Apparatus (AREA)

Abstract

Die vorliegende Erfindung betrifft ein Heißleimwerk für eine Etikettiermaschine in der getränkeverarbeitenden Industrie, umfassend wenigstens eine Leimwalze und einen Leimbehälter, sowie ein Gehäuse, in dem die Leimwalze angeordnet 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.The present invention relates to a hot glue unit for a labeling machine in the beverage processing industry, comprising at least a glue roller and a glue container, and a housing in which the glue roller is arranged, characterized in that the hot glue unit comprises a filter unit connected to the housing with a suction, aspirate the gases from inside the housing and feed them to the filter unit before the gases can leave the hotmelt unit.

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 12.The present invention relates to a hot glue unit for a labeling machine according to the preamble of claim 1 and to a labeling machine for labeling containers according to the preamble of claim 12.

Stand der TechnikState of the art

Heißleimwerke in Verbindung mit Etikettiermaschinen im Bereich der getränkeverarbeitenden Industrie sind aus dem Stand der Technik bekannt.Hot melt plants in connection with labeling machines in the beverage processing industry are known from the prior art.

So zeigt beispielsweise die DE 20 2016 104 049 U1 ein Heißleimwerk, dem ein Abzug zum Absaugen von Leimdämpfen aus einer Leimwalze zugeordnet ist.For example, shows the DE 20 2016 104 049 U1 a hot glue unit, which is associated with a trigger for sucking glue vapors from a glue roller.

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.The previous systems for extracting vapors produced during heating of the glue do not work completely reliably with respect to the extraction, so that gases can still escape in the vicinity of the hotmelt unit, which can lead to pollution of the environment (sluft). In particular, in labeling machines that label still open containers, the escape of such gases can also lead to contamination of the interior of the container. Furthermore, the power required for the extraction due to the total intake gas volume is relatively large, so that there is a significant energy demand.

Aufgabetask

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.Starting from the known state of the art, the technical problem to be solved is thus to provide a hotmelt unit which enables a suction of the vapors produced during heating of the hotmelt reliably and with reduced energy requirement.

Lösungsolution

Diese Aufgabe wird durch das Heißleimwerk gemäß Anspruch 1 und die Etikettiermaschine gemäß Anspruch 12 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 12. Advantageous developments of the invention are covered in the subclaims.

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.The hot glue unit according to the invention for a labeling machine in the beverage processing industry comprises at least one glue roller and a glue container and a housing in which the glue roller is arranged and is characterized in that the hot glue unit Includes filter unit connected to the housing with an exhaust, which can suck gases from the interior of the housing and the filter unit can supply before the gases can leave the hot glue unit.

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 construction of the housing with the filter unit and the suction is to be understood that the air from the interior of the housing first, at least with activated suction the filter unit must pass before it can escape at all 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.This ensures that the suction only has to suck in the gas volume inside the housing and further complete or as complete as possible filtering of the gases in the filter unit can be done before the gases can escape from the hot glue unit into the environment. The energy consumption for the suction can thus be significantly reduced, while the reliability of the suction is increased.

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 further comprises a filter cartridge and a collecting container, wherein the filter cartridge and the collecting container are connected to each other so that a condensate forming in the filter cartridge can drain into the collecting container. When passing through the suction and the entire filter unit, in particular the filter cartridge to cool gases that may arise during the heating of the hot glue, with which they can be brought to a temperature that is lower than the condensation temperature. By connecting the filter cartridge with the collecting container, an undesired draining of this condensate back into the suction or even the housing can be avoided.

In einer weiteren Ausführungsform ist vorgesehen, dass 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. Der so entstehende Luftzug von der Frischluftöffnung zur Absaugöffnung erfasst möglichst sämtliche Gase innerhalb des Gehäuses, so dass ein effektives Absaugen erfolgen kann.In a further embodiment it is provided that the housing comprises a fresh air opening, which is arranged on a first side surface of the housing and wherein the suction device comprises a suction opening through which gases can be sucked out of the interior of the housing, wherein the suction opening at a second side surface of the housing is arranged. The resulting draft from the fresh air opening to the suction detected as possible all the gases within the housing, so that an effective suction can take place.

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 at least separated from one another by two further side surfaces. The effect of the previous embodiment can be increased even more.

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, it can be provided that the filter cartridge and / or the collecting container are formed quickly changeable. During operation of the hot glue unit, it will inevitably lead to contamination of the filter cartridge and the continuous filling of the collecting container, which makes a change required. Downtimes can be minimized by the quickly exchangeable design of these components. It means quickly interchangeable that the filter cartridge and / or the collecting container with the filter unit or more generally the hotmelt unit are connected such that no tools for releasing the connections are needed. These include, for example, click or plug connections. It can generally be provided that the entire filter unit can be quickly exchanged and, in particular, disassembled from the hotmelt unit. In particular, any connections of the filter unit with the housing can be designed to be detachable without tools. Additionally or alternatively, it may 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 automatically or automatically. Here, self-centering elements can be advantageously used so that the media channels to be connected can be connected as simply 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 sucked from the interior of the housing gas, which is longer than the maximum extent of the filter cartridge in at least one direction. For example, if the filter cartridge is cylindrical and has a height of 10 cm, the flow channel is longer than this 10 cm. Ensuring the longest possible flow channel ensures that parts of the gas mixture that pass through it condense and are reliably collected in the collecting container and can not 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 continuation of this embodiment, it is provided that the flow channel is helically wound and / or the filter unit comprises a cooling system for cooling the flow channel. Both variants ensure the most complete possible condensation in the housing forming gases.

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 produced 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, one upstream and one downstream of the filter cartridge. Possibly occurring turbulences within the filter cartridge, which could prevent further flow of the gases can be compensated by the downstream fan, 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 out from the filter cartridge can escape.

Es kann ferner vorgesehen sein, dass das Heißleimwerk einen Leimschaber zum Abschaben von Leim von der Leimwalze umfasst, wobei der Leimschaber innerhalb des Gehäuses angeordnet ist.It may further be provided that the hot glue unit comprises 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.It can also be thought of a method in which hot glue is heated in a hot glue unit for a labeling and thereby emerging gases are sucked out of a housing in which a glue roller and a glue container are arranged, sucked through a suction of a filter unit and fed to the filter unit, before the gases leave the hotmelt plant.

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.Furthermore, it may be thought that a filter cartridge and a collecting container of the filter unit are connected to each other so that the forming in the filter cartridge condensate drains into the receptacle.

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 further be provided that the air is sucked out of the housing from a suction opening in a second side face and fresh air enters the housing through a fresh air opening in a first side face.

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 between the housing and the filter cartridge, a mist eliminator is arranged, which is connected to the collecting container. With the mist eliminator already formed condensate droplets can be separated from the gas mixture before they reach the filter cartridge, whereby clogging of the filter cartridge and thus necessary stopping the labeling can be avoided longer.

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 helically wound, for example, or wherein Cooling system is provided which cools the flow channel, at least during the passage of gases.

Erfindungsgemäß ist weiterhin ein Verfahren zum Bereitstellen von erhitztem Leim für eine Etikettiermaschine mittels eines Heißleimwerks vorgesehen, 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.According to the invention there is further provided a method of providing heated glue to a labeller by means of a hot glue unit, the method comprising heating the glue in a glue box and transporting the heated glue to a glue roller within a housing, wherein a filter unit is provided, which extracts and filters gases from the interior of the housing by means of a suction, before these gases leave the hotmelt unit, the hotmelt unit being one according to the above embodiments.

Ferner kann vorgesehen sein, dass ein Leimschaber den erhitzten Leim von der Leimwalze abschabt und den erhitzten Leim auf ein Etikett, das anschließend auf einen zu etikettierenden Behälter appliziert wird, und/oder den erhitzten Leim auf einen zu etikettierenden Behälter überträgt.Furthermore, it can be provided that a glue scraper abrades the heated glue from the glue roller and transfers the heated glue to a label, which is subsequently applied to a container to be labeled, and / or the heated glue 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 development of this embodiment it can be provided that the container to be labeled is not closed when it is labeled. By the extraction of the gases produced during the heating of the glue, contamination, in particular of the interior of the container, can be avoided.

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 may comprise a filter cartridge and a collecting container, with condensate forming in the filter cartridge discharging into the collecting container via a connection between the filter cartridge and the collecting 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 evacuated from the interior of the housing through an exhaust port of the exhaust disposed on a second side surface different from a first side surface in which a fresh air port is disposed through which air flows into the housing. This ensures as complete as possible a circulation of the gases within the housing, so that only small, preferably no dead zones form, from which the gases can not be sucked off.

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 may further be provided that the gas extracted from the interior of the housing passes through a flow channel within the filter cartridge, which is optionally cooled. The most complete possible condensation of evaporated constituents of the hot glue and the associated return to a possible collecting 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 sucked out of the interior of the housing first pass through a droplet separator, in which condensate droplets condensed in the gases are deposited and supplied to the collecting container, and then the filter cartridge is passed.

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 may comprise feeding containers from a blow molding machine to a labeling machine and providing them with a hot glue-applied label or hot glue, the hot glue being provided according to the method of the invention, and then a filler and / or Wearer be 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.There is further provided a container treatment plant for treating containers such as bottles in the beverage processing industry, wherein the container treatment plant in the transport direction of the container comprises a blow molding machine, a labeling machine and a filler, wherein the labeling machine is the labeling machine of the preceding embodiment.

Kurze Beschreibung der FigurenBrief description of the figures

  • Fig. 1 zeigt eine schematische Außenansicht des Heißleimwerks gemäß einer Ausführungsform, Fig. 1 shows a schematic external view of the hot glue unit according to an embodiment,
  • Fig. 2 zeigt einen Schnitt durch das Heißleimwerk aus Fig. 1, Fig. 2 shows a section through the hot glue unit Fig. 1 .
  • Fig. 3 zeigt einen Schnitt in einer Ebene senkrecht zur Schnittebene der Fig. 2 durch das Heißleimwerk gemäß Fig. 1, Fig. 3 shows a section in a plane perpendicular to the cutting plane of Fig. 2 through the hot glue mill according to Fig. 1 .
  • Fig. 4 zeigt eine weitere Ausführungsform des Heißleimwerks. Fig. 4 shows a further embodiment of the hot glue unit.
Ausführliche BeschreibungDetailed description

Fig. 1 zeigt in schematischer Ansicht ein Heißleimwerk 100 gemäß einer Ausführungsform der Erfindung. Das Heißleimwerk ist mit einem Gehäuse 101 versehen. In diesem ist, wie bei Heißleimwerken typisch, eine Leimwalze angeordnet. Diese sind hier nicht dargestellt, werden jedoch in Fig. 2 näher erläutert. Der Leimwalze kann im Gehäuse ebenfalls ein Leimschaber zugeordnet sein, um den Leim von der Leimwalze abzutragen. Fig. 1 shows a schematic view of a hot glue unit 100 according to an embodiment of the invention. The hot glue unit is provided with a housing 101. In this, as is typical with hot glue units, a glue roller is arranged. These are not shown here, but are in Fig. 2 explained in more detail. The glue roller may also be associated with a glue scraper in the housing to remove the glue from the glue roller.

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.The housing is substantially closed, except for a possible supply of fresh air. A filter unit 110 is connected to the housing according to the invention. This filter unit comprises an exhaust 102, with the air via a suitable suction opening (not shown here) can be sucked directly from the housing. The suction 102 is connected for this purpose directly to the interior of the housing, for example via the already mentioned suction opening. Preferably, the housing and the suction are designed so that except for the suction 102 no gases can leave the housing. The housing together with the suction can thus be considered as a substantially closed system.

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 further comprises a filter cartridge 103 and a collecting container 104. The filter cartridge is arranged with respect to a predefined by the suction flow direction of the gases from the housing downstream of the suction in such a way that extracted by means of the suction 102 from the interior of the housing gases the filter cartridge 103 are supplied.

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 hotmelt unit 100 via an outlet opening 105.

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.With the filter cartridge also a collecting container 104 is connected. This is connected to the filter cartridge so that condensate from the flow channel of the filter cartridge or generally from a region in which gases condense in the filter cartridge is fed into the collecting container. For this purpose, for example, small pores or other openings may be provided at suitable locations in the filter cartridge, can pass through the liquid in the collecting container 104.

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 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). Thus, the suction can be designed to allow an air flow with a throughput of 10 liters / minute or 5 liters / minute but also more or less. The filter cartridge must then allow a corresponding throughput and the collecting container may for example have a volume of up to 500 ml. The larger the volume of the collection container, the less often it must be emptied. Even the filter cartridge must be changed only rarely with suitable dimensioning. However, since these replacement work is inevitable during prolonged operation, it may be provided in one embodiment that the filter cartridge and / or the collecting container are rapidly connected to the filter unit 110, so that they with only a small temporal and little mechanical effort removed from the filter unit and can be replaced by new filter cartridges or drip tray.

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.Preferably, the state of the filter unit can be monitored. Thus, suitable sensors, such as pressure sensors, may be connected to the filter unit which measure the differential pressure before and after the filter unit. The measurement results can be displayed, for example, on a control unit (in particular display of the control unit) or otherwise processed by means of a computer or similar device for data processing. Other methods for measuring certain characteristics, such as inductive, optical or capacitive methods are possible here. The measured values obtained are used to determine whether the filter or the filter cartridge is already clogged or blocked by condensate of the glue. If this is detected, the operator may 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 on the basis of the measured values and / or a suitable flow and condensation model for the filter cartridge for a future time and, for example, an automatic order of a new filter cartridge by the labeling or a its associated control unit, such as a computer via the Internet or another data connection. Also, maintenance intervals may 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.It may alternatively or additionally also be provided that at least the collecting container has a discharge opening, via which condensate can be drained off at specific time intervals. Thus, for example, when reaching a level of 80%, the operator can be informed via a control unit (for example a computer) that the collecting container must be emptied or replaced. For this purpose, for example, a level sensor may be provided in the collecting container. This can be formed as mechanically as possible in the form of a float.

Fig. 2 zeigt einen Schnitt durch das Heißleimwerk gemäß der Fig. 1. Wie hier dargestellt, umfasst das Heißleimwerk im Inneren des Gehäuses 101 eine Leimwalze 222 aus der Leim austreten und über den Leimschaber 221 abgeschieden werden kann. Zu diesem Zweck kann die Leimwalze in Drehung versetzt werden. Fig. 2 shows a section through the hot glue mill according to the Fig. 1 , As shown here, the hot glue unit inside the housing 101 comprises a glue roller 222 from which glue can exit and can be deposited via the glue scraper 221. For this purpose, the glue roller can be rotated.

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.Further, in this figure, the fresh air opening 223 is shown in the housing 101. This is located on a side 230 of the housing 101, for example on one side of the glue roller 222. On the side surface 231, the suction opening 224 is shown in this illustration, with the aid of which the suction can suck gases from the housing. As can be seen, fresh air openings 223 and exit openings 224 are provided on different side surfaces of the housing. The resulting flow path of the gases thus captures as far as possible all areas within the housing. Particularly advantageous may be an arrangement of the suction opening 224 on the side facing away from the glue roller side surface of the housing to the side surface in which the fresh air opening 223 is provided, be. It can also be provided several suction to "dead zones" from which gases can be sucked only a little effective, to avoid.

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.The suction can in the region of the suction opening 224 but also downstream of the suction opening 224, but at least upstream of the filter cartridge comprise a fan whose direction of rotation is aligned so that it sucks gases from the housing 101 through the suction and the filter cartridge 103 feeds. The suction opening or a channel adjoining it can in this case be connected to a flow channel of the filter cartridge, so that the gases passing through the suction opening reach the filter cartridge.

In Fig. 3 ist schematisch ein Schnitt durch das Heißleimwerk hindurch dargestellt. Dieser Schnitt erfolgt senkrecht zu der in Fig. 2 dargestellten Schnittebene und verläuft durch den Auffangbehälter bzw. die Filterpatrone 103 hindurch. Hier zu erkennen ist die Verbindung 353 der Absaugung mit der Filterpatrone 103 am unteren bzw. zumindest der Austrittsöffnung am oberen Ende der Filterpatrone gegenüberliegenden Teil zu erkennen. Unterhalb der Filterpatrone 103 ist der Auffangbehälter 104 angeordnet. Dieser kann beispielsweise auf der dargestellten Halterung 352 gelagert sein.In Fig. 3 is schematically shown a section through the hot gluing unit. This section is perpendicular to the in Fig. 2 Section shown and passes through the collecting container or the filter cartridge 103 therethrough. To recognize here is the connection 353 of the suction with the filter cartridge 103 at the bottom or at least the outlet opening at the upper end of the filter cartridge opposite part to recognize. Below the filter cartridge 103, the collecting container 104 is arranged. This can be stored for example on the holder 352 shown.

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 may be advantageous to be able to determine the fill level of the collecting container and, based thereon, for example by means of a control unit, to alert the operator to an emptying or changing of the collecting container 104. For this purpose, the holder 352 can advantageously be designed as a weighing counter or comprise such that the filling 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 may be asked to change the collecting container.

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 may have a helical flow channel in the interior, which has to pass the suctioned gas from the interior of the housing 101 gas before it reaches the outlet opening 105. While passing the Flow channel 354, the gas cools and can condense, so that condensates effectively remain in the filter cartridge and can be guided into the collecting container 104.

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 cooling system 355 is shown schematically in the region of the filter cartridge. This cooling system may not only be formed as part of the filter unit 103, but may also be fully or partially integrated into the filter cartridge 103. The cooling system, in one embodiment, is configured 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 arise during the heating of the hot glue. By controlled cooling of the flow channel 354 passing through the gas mixture (consisting of air and the gases of the hot glue) as complete as possible condensation of the gases of the hot glue and concomitant separation of the remaining air can be ensured so that ensures effective separation of the condensate into the collecting container can be.

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 may additionally be equipped with a heating element (for example an infrared radiator or heating coil) or it may be associated with a heating element. With this heating element, the condensate located in the collecting container can be kept in the liquid state, which allows a discharge of the condensate and thus a reuse of the collecting container. The cooling system and the optionally provided heating element may be connected to each other via a common heat exchanger system for the purpose of energy saving, so that the waste heat of 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 glue unit is located, so that their respective power (ie cooling power and heating power) is controlled as a function of the other system parameters. For example, if the gas flow through the filter cartridge is comparatively low, only a small cooling capacity can be effected. If the gas flow increases, the cooling capacity can be increased appropriately. Likewise, the heating element can be controlled so that depending on the level of the collecting container whose heating power is increased. This ensures that the condensate in the collecting tank remains as liquid as possible even at a high filling level and that the condensate does not start to cook inadvertently at low filling levels or at least initiates a considerable vapor development.

In der Fig. 3 ist ebenfalls stromab der Filterpatrone aber vor der Austrittsöffnung 105 ein weiterer Ventilator 351 angedeutet. Dieser kann die Luft bzw. das Gasgemisch aus der Filterpatrone ansaugen und über die Austrittsöffnung 105 ausstoßen, so dass unbeabsichtigte Verwirbelungen innerhalb der Filterpatrone den Gasdurchfluss nicht negativ beeinflussen.In the Fig. 3 is also downstream of the filter cartridge but before the outlet opening 105, a further fan 351 indicated. This can suck in the air or the gas mixture from the filter cartridge and expel through the exit port 105 so that inadvertent turbulence within the filter cartridge does not adversely affect gas flow.

Um die in der Fig. 3 beschriebene Kühlung der Gase und die damit einhergehende Kondensation noch zu verbessern, kann ein hier nicht dargestelltes Kühlsystem vorgesehen sein, das zusätzlich das Gehäuse 101 und den Strömungskanal 354 von der Austrittsöffnung 105 bis zur Filterpatrone 103 kühlt. Ist stromauf der Filterpatrone ein Tropfenabscheider angeordnet, kann durch diese zusätzliche Kühlung ein besseres Abscheiden sich bildenden Kondensats bereits im Tropfenabscheider gewährleistet werden, womit ein Verstopfen der Filterpatrone vermieden werden kann.To the in the Fig. 3 described cooling of the gases and the concomitant condensation to improve, 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, a better separation of forming condensate can already be ensured in the droplet separator by means of this additional cooling, whereby blockage of the filter cartridge can be avoided.

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 housing 101 and / or the flow channel 354 can be generally ensured by a double-walled construction, wherein in a space in the double-walled housing, for example via an external air supply and / or by means of an (external) air conditioner cold air can be passed, the Housing wall and (indirectly) the interior of the housing and thus cools the resulting gas when heating the glue. The cold air, for example, from the exhaust air of a blow molding machine, which is interconnected with the labeling machine to a container treatment plant (blocked), are obtained. Also, liquid cooling, for example, using cooling water for control cabinets or similar. is conceivable here. Likewise adiabatic cooling come into consideration.

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.As filter media for the filter cartridge different substances come into consideration. So cardboard filters, paper filters or filter wadding, but also glass fiber fleece, ceramic filters, sintered metal, steel wool, chemical filter materials in general, depth filter, electrostatic precipitator, water filter or mist eliminator 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.For the most complete neutralization of unpleasant odors in the labeling machine, carbon filters may furthermore preferably be used. The filter, in particular the filter cartridge can also be connected to a cleaning system (backwash example) to prevent clogging of the filter cartridge as long as possible. The backwashing can, for example, at certain time intervals or depending on the condition of the filter (closer to its determination was explained above) the filter medium or the entire filter cartridge with a suitable rinsing medium, preferably a medium in which dissolve all residues of the glue, rinse, with which residues can be removed. Here may be thought of water or specialized solvents. The flushing medium with the possibly dissolved glue residue can be supplied to the collecting container 104. This is particularly advantageous since the remaining glue residues in the collecting container can thus be prevented from curing.

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 Fig. 4 eine mögliche Ausführungsform.According to the invention may further be provided that the filter cartridge and the collecting container are not directly connected to each other and the filter cartridge does not connect directly to the housing. This shows Fig. 4 a possible embodiment.

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 tube 470 leads out of the housing 101. The tube 470 has a U-shape with the receptacle 104 connected to the lowest point of the U-shape. This favors the draining of the condensate. The tube may for example consist of a plastic or a metal and may preferably be produced by means of a 3D printing process.

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 baffles, baffles or ribs, so that the condensation of the gases is promoted by an increased surface. Furthermore, the inner surface of the tube may be provided with a lipophobic coating. Thus, the drainage of the condensate on the surface of the tube can be favored. These include not only suitable coatings, but also a polishing or sealing as well as other surface finishes can cause 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 may have ribs on the outer surface and / or be double-walled. Thus, the cooling of the interior favors and thus condensation of the gases can be better achieved.

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, not shown here, bypass line, which is connected to the glue container 480 and at least into a region opens into the tube, which is arranged upstream of the collecting container 104. Thus, when the glue is heated in the glue container 480, the gases produced can be sucked off directly and fed to the collecting container.

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, upstream of the filter cartridge, a droplet separator (not shown here) may be provided according to one or more embodiments described above. This may for example be arranged in the "descending" branch 471 of the U-shaped tube 470 and have a connection to the collecting container 104, so that condensate collected in the droplet separator can be conducted into the collecting container.

Die nach der Filterpatrone 104 eventuell vorgesehenen zusätzlichen Vorrichtungen wie Ventilatoren können analog zu obigen Ausführungsformen vorgesehen sein.The possibly provided after the filter cartridge 104 additional devices such as fans may be provided analogously to the above embodiments.

Das Rohr und sämtliche weiteren Komponenten der in Fig.4 beschriebenen Ausführungsform können auch sämtliche Einrichtungen zur Kühlung umfassen, wie sie bereits beschrieben wurden. Insbesondere kann das Rohr doppelwandig ausgebildet sein und innerhalb dieser Doppelwand kann ein Kühlmedium zirkulieren, um ein Kondensieren der Gase zu begünstigen.The pipe and all other components of in Figure 4 described embodiment may also include all means for cooling, as already described. In particular, the tube may be double-walled and within this double wall, a cooling medium may circulate to promote condensation of the gases.

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 may nevertheless be provided that the housing 101 is not completely "opaque". Although in principle a robust design of the housing, for example made of steel is preferred. However, to monitor the processes within the housing (in particular interaction between glue roller and glue scraper and transfer of the glue to the labels by means of the glue scraper) can be provided that the housing is at least partially transparent, in particular comprises a viewing window. The viewing window can be designed to open, but this opening is preferably not possible during operation to prevent the escape of potentially hazardous gases. Therefore, the viewing window can be connected to a suitable detector, for example in the form of a magnetic switch or ultrasonic sensor, which registers the opening or attempt to open the viewing window and causes the labeling machine and the hot glue unit to be switched off.

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 hotmelt unit according to the invention together with its filter unit is designed so that the air discharged from the filter unit into the environment at the end (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 be used all in both separately executed labeling machines and also in "blocked" labeling machines. The latter are operated in the context of container treatment plants together with an upstream (arranged upstream in the transport direction of the container) blow molding machine or other device for producing containers and a downstream (arranged downstream in the transport direction of the container) filler and / or capper operated.

Claims (13)

Heißleimwerk für eine Etikettiermaschine in der getränkeverarbeitenden Industrie, umfassend wenigstens eine Leimwalze und einen Leimbehälter, sowie ein Gehäuse, in dem die Leimwalze angeordnet 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.Hot glue unit for a labeling machine in the beverage industry, comprising at least a glue roller and a glue container, and a housing in which the glue roller is arranged, characterized in that the hot glue unit comprises a filter unit connected to the housing with a suction, the gases from the interior of the housing and can supply to the filter unit before the gases can leave the hotmelt unit. Heißleimwerk nach Anspruch 1, wobei die Filtereinheit weiterhin eine Filterpatrone und einen Auffangbehälter umfasst, wobei die Filterpatrone und der Auffangbehälter so miteinander verbunden sind, dass ein sich in der Filterpatrone bildendes Kondensat in den Auffangbehälter ablaufen kann.The hot glue unit according to claim 1, wherein the filter unit further comprises a filter cartridge and a collecting container, wherein the filter cartridge and the collecting container are connected to each other so that a condensate forming in the filter cartridge can drain into the collecting container. Heißleimwerk nach Anspruch 1 oder 2, 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 glue mill of claim 1 or 2, wherein the housing includes a fresh air opening disposed on a first side surface of the housing, and wherein the suction includes a suction opening through which gases can be sucked from the interior of the housing, the suction opening on a second side surface of the housing is arranged. Heißleimwerk nach Anspruch 3, wobei zweite Seitenfläche und die erste Seitenfläche einander gegenüberliegen oder zumindest durch zwei weitere Seitenflächen voneinander getrennt sind.Hot glue unit according to claim 3, wherein the second side surface and the first side surface are opposite to each other or at least separated from each other by two further side surfaces. Heißleimwerk nach Anspruch 2, wobei die Filterpatrone und/oder der Auffangbehälter schnellwechselbar ausgebildet sind.Hot glue unit according to claim 2, wherein the filter cartridge and / or the collecting container are designed to be quick to change. Heißleimwerk nach einem der Ansprüche 2 bis 5, wobei 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.Hot glue unit according to one of claims 2 to 5, wherein the filter cartridge comprises a flow channel for the gas sucked from the interior of the housing, which is longer than the maximum extent of the filter cartridge in at least one direction. Heißleimwerk nach Anspruch 6, wobei der Strömungskanal schraubenförmig gewunden ist und/oder wobei die Filtereinheit ein Kühlsystem zum Kühlen des Strömungskanals umfasst.Hot glue unit according to claim 6, wherein the flow channel is helically wound and / or wherein the filter unit comprises a cooling system for cooling the flow channel. Heißleimwerk nach einem der Ansprüche 1 bis 7, wobei die Absaugung wenigstens einen stromauf oder stromab der Filterpatrone angeordneten Ventilator umfasst.Hot glue unit according to one of claims 1 to 7, wherein the suction comprises at least one fan arranged upstream or downstream of the filter cartridge. Heißleimwerk nach Anspruch 8, wobei die Absaugung zwei Ventilatoren umfasst, wobei einer stromauf und einer stromab der Filterpatrone angeordnet sind.Hot glue unit according to claim 8, wherein the suction comprises two fans, wherein one upstream and one downstream of the filter cartridge are arranged. Heißleimwerk nach einem der Ansprüche 1 bis 9, wobei stromab der Filterpatrone eine Austrittsöffnung angeordnet ist, durch die von der Filterpatrone gefilterte Luft austreten kann.Hot glue unit according to one of claims 1 to 9, wherein downstream of the filter cartridge, an outlet opening is arranged, can escape through the filtered from the filter cartridge air. Heißleimwerk nach einem der Ansprüche 1 bis 9, weiterhin umfassend einen Leimschaber zum Abschaben von Leim von der Leimwalze und Übertragen des Leims an ein Etikett, wobei der Leimschaber in dem Gehäuse angeordnet ist.The hot glue unit according to any one of claims 1 to 9, further comprising a glue scraper for scraping glue from the glue roller and transferring the glue to a label, the glue scraper being disposed in the housing. Etikettiermaschine zum Etikettieren von Behältern wie Flaschen in der getränkeverarbeitenden Industrie, dadurch gekennzeichnet, dass die Etikettiermaschine zum Beleimen der Etiketten mit Heißleim ein Heißleimwerk nach einem der Ansprüche 1 bis 11 umfasst.Labeling machine for labeling of containers such as bottles in the beverage processing industry, characterized in that the labeling machine for gluing the labels with hot glue a hot glue unit according to one of claims 1 to 11 comprises. Behälterbehandlungsanlage zum Behandeln von Behältern wie Flaschen in der getränkeverarbeitenden Industrie, die Behälterbehandlungsanlage umfassend, in Transportrichtung der Behälter, eine Blasformmaschine, eine Etikettiermaschine und einen Füller, wobei die Etikettiermaschine die Etikettiermaschine nach Anspruch 12 ist.Container treatment plant for treating containers such as bottles in the beverage industry, the container treatment plant comprising, in the transport direction of the container, a blow molding machine, a labeling machine and a filler, wherein the labeling machine is the labeling machine according to claim 12.
EP18183139.7A 2017-09-07 2018-07-12 Hot glueing device with suction for a labelling machine Active EP3456644B1 (en)

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CN209241527U (en) 2019-08-13
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EP3456644B1 (en) 2022-11-23
US11318492B2 (en) 2022-05-03

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