CN217599064U - Hot glue device for labeling machine, labeling machine and container processing facility - Google Patents

Abstract

The utility model relates to a hot glue device (100), labeling machine and container processing facility for labeling machine. The hot glue device comprises at least one glue roller (222) and a glue container (480), and a housing (101) in which the glue roller is arranged, wherein the hot glue device comprises a suction section (102) connected to the housing, which suction section can suck gas from the interior of the housing before the gas can leave the hot glue device, wherein a cyclone unit (103) is provided downstream of the suction section in the flow direction of the gas, and the cyclone unit is connected to the suction section via a droplet separator (106.

Description

Hot glue device for labeling machine, labeling machine and container processing facility

Technical Field

The utility model relates to a hot mucilage binding of labeling machine for among the beverage processing industry is put, a labeling machine that is arranged in labeling to the container among the beverage processing industry and a container treatment facility that is arranged in handling the container among the beverage processing industry.

Background

Hot glue devices associated with labelling machines in the field of beverage processing are known from the prior art.

For example, DE 20 2016 104 049 U1 shows a hot glue device, to which an extractor for extracting glue vapors from a glue roller is assigned.

The systems used up to now for sucking in the vapour generated when heating the glue do not work completely reliably in terms of suction, so that there is always still gas escaping around the hot glue device, which can lead to environmental pollution. In particular in the case of labeling machines for labeling containers which are still open, this escape of gas can also lead to soiling of the interior of the container. Furthermore, the power required for the suction is relatively large due to the total volume of gas sucked in, and the energy demand is thus also considerable.

SUMMERY OF THE UTILITY MODEL

Based on the prior art, the technical task to be solved is therefore to specify a hot glue device and a hot glue method, which enable the steam generated during the heating of the hot glue to be reliably sucked off and with reduced energy consumption.

This task is solved by a hot glue device for labeling machines in the beverage processing industry according to the present invention and a labeling machine for labeling containers in the beverage processing industry and a container treatment facility for treating containers in the beverage processing industry according to the present invention.

According to the utility model discloses a hot mucilage binding is put for labeling machine of beverage processing industry includes at least one rubber roll and gluey container, and casing, and the rubber roll is arranged in this casing, and its characterized in that, hot mucilage binding is put including the suction portion of being connected with the casing, before gaseous probably leaves hot mucilage binding, this suction portion can be from the inside suction gas of casing, wherein, is provided with the whirlwind unit in the gas flow direction downstream suction portion, and this whirlwind unit is connected with suction portion via the liquid droplet separator.

The geometry of the housing with the filter unit and the suction portion is to be understood here as meaning that, at least in the case of the suction portion being switched on, the air from the interior of the housing must first pass through the droplet separator and then through the cyclone unit before the air can leave into the environment outside the housing.

A cyclone unit is a unit in which separation of the liquid droplets can be brought about by the resulting air vortex (cyclone) and the centrifugal force acting on the liquid droplets as a result, while the remaining gas passes through the cyclone unit.

For this purpose, the droplets must have a size which reaches a minimum size depending on the cyclone unit used. The droplet separator is therefore selected such that it is capable of separating droplets having at least the following size, preferably a size at least 20% larger than the minimum size required by the cyclone unit.

It is thus ensured that the suction part only has to suck up the gas volume within the housing and also to release the gas from the liquid residues, in particular the glue residues, as completely as possible before the gas can escape from the hot glue device into the environment. The energy requirement of the suction portion can thus be significantly reduced, while the reliability of the suction portion is increased.

In one embodiment, a filter unit is arranged downstream of the cyclone unit in the gas flow direction, the filter unit comprising a fine filter and a paper filter with activated carbon arranged downstream of the fine filter. Thereby enabling the particles remaining in the gas mixture to be filtered out even after the cyclone unit.

In a further embodiment, it is provided that the housing comprises a fresh air opening which is arranged on a first side of the housing, and wherein the suction portion comprises a suction opening through which gas can be sucked from the interior of the housing, wherein the suction opening is arranged on a second side of the housing. The ventilation thus generated from the fresh air opening to the suction opening will cover as much as possible all the gas within the housing, so that an effective suction is possible.

In a further development of this embodiment, it is provided that the second side and the first side are opposite each other or are separated from each other at least by two further sides. The effects of the previous embodiment can be further improved.

Furthermore, it can be provided that the cyclone unit comprises a collecting container for condensate collected by the cyclone unit. The separated liquid residues and especially glue residues can thus be collected and disposed of safely.

Furthermore, it can be provided that the cyclone unit and/or the collecting container and/or the filter unit are connected to the suction part and/or the hot glue device in a quick-change manner.

The quick-change-able connections are preferably those which can be released or established without the use of tools. These connections include, for example, connections established via snap-in connectors, clamps or similar elements that can only be operated manually.

This embodiment allows for a quick change of the contaminated component so that the operation of the machine only needs to be interrupted briefly.

In one embodiment, the suction section comprises at least one blower arranged upstream or downstream of the filter unit. The blower is capable of providing the necessary ventilation to ensure that the gases generated in the housing are drawn in.

In one embodiment, an escape opening is arranged downstream of the cyclone unit or optionally downstream of the filter unit, through which escape opening gas that has passed through the cyclone unit or optionally through the filter unit can escape. If a filter unit is provided, an escape opening is provided downstream of the filter unit. If no filter unit is provided downstream of the cyclone unit, the escape opening is arranged downstream of the cyclone unit.

It can also be provided that the hot glue device comprises a glue scraper for scraping glue from the glue roller, wherein the glue scraper is arranged within the housing.

According to a feature of the hot glue method for applying hot glue to labels and/or containers by means of a hot glue device, the hot glue device comprises at least one glue roller and a glue container, and a housing in which the glue roller is arranged, characterized in that the hot glue device comprises a suction section connected to the housing, which suction section sucks gas from the interior of the housing before the gas leaves the hot glue device, wherein a cyclone unit is provided downstream of the suction section in the gas flow direction, and the cyclone unit is connected to the suction section via a droplet separator, and in which liquid components of the gas fall in the form of droplets of a specific size and are separated out in the cyclone unit.

In this way, it is reliably ensured, even at low energy expenditure, that the particularly liquid glue component of the gas mixture is separated off before the gas mixture finally leaves the hot-glue device.

It can be provided that the cyclone unit comprises a collecting container into which the separated liquid component is introduced. Therefore, these components can be separated and handled.

Furthermore, after passing through the cyclone unit, the gas can pass through a filter unit comprising a fine filter and a paper filter with activated carbon arranged downstream of the fine filter. In this case, undesired particles which remain can be filtered out.

In one embodiment, it is also provided that the escape opening is arranged downstream of the cyclone unit or optionally downstream of the filter unit, wherein gas which has passed through the cyclone unit or optionally through the filter unit escapes through the escape opening. It is expedient here if the escape opening is arranged after the filter unit if a filter unit is provided, otherwise the escape opening is arranged after the cyclone unit.

A labeling machine for labeling containers such as bottles in the beverage processing industry according to the present invention is characterized in that the labeling machine for applying labels with hot glue comprises a hot glue device according to one of the above embodiments.

A method is also conceivable in which the hot glue is heated in a hot-glue device for a labeling machine, and the gas generated in this case from the housing in which the glue roller and the glue container are arranged is sucked in by the suction section of the filter unit and is supplied to the filter unit, and the gas is then let out of the hot-glue device.

It can also be provided that air from the housing is sucked in through the suction opening in the second side and that fresh air is fed into the housing through the fresh air opening in the first side.

Furthermore, it can be provided that the gas from the housing passes through the cyclone unit along a flow channel, which spirals, for example, in a helical manner, or wherein a cooling system is provided which cools the flow channel at least when the gas passes through.

With the method according to the invention, it can also be provided that the glue scraper scrapes off the heated glue from the glue roller and transfers the heated glue to a label which is subsequently applied to the container to be labeled and/or transfers the heated glue to the container to be labeled.

In a development of this embodiment, it can be provided that the container to be labeled is not sealed when it is labeled. By sucking in the gas generated when heating the glue, contamination, in particular inside the container, can be avoided.

In one embodiment, the gas is sucked in from the interior of the housing through a suction opening of the suction section, which suction opening is arranged on a second side, which is different from the first side, in which fresh air openings through which air flows into the housing are arranged. This ensures that the gas is circulated as completely as possible within the housing, so that only small, preferably no, dead spaces are formed from which air cannot be sucked.

Furthermore, the method can comprise conveying the containers from the blow molding machine to a labeling machine and providing the containers with labels or loading the containers with hot glue, wherein the hot glue is provided according to the method of the invention, and subsequently conveying the containers to a filling machine and/or a capping machine.

A container treatment plant for treating containers, such as bottles, in the beverage processing industry is also provided, wherein the container treatment plant comprises, in the transport direction of the containers, a blow moulding machine, a labeling machine and a filling machine, wherein the labeling machine is the labeling machine of the preceding embodiment.

Drawings

FIG. 1 illustrates a schematic external view of a thermal glue device according to one embodiment;

FIG. 2 shows a cross section through the thermal glue device of FIG. 1;

fig. 3 shows another section through the thermal glue device, which is perpendicular to the section of fig. 2;

fig. 4 shows a further embodiment of the thermal glue device.

Detailed Description

Fig. 1 shows a schematic view of a hot glue device 100 according to an embodiment of the invention. The hot glue device is provided with a housing 101. As is typical in hot glue devices, a glue roller is arranged in the housing. These are not shown here but are explained in more detail in fig. 2. A stripper is also associated with the rubber roller in the housing in order to remove the rubber from the rubber roller.

The housing is substantially closed, except for a possible fresh air supply. According to the invention, a suction part 102 is connected to the housing, with which air can be sucked directly from the housing via suitable suction openings (not shown here). For this purpose, the suction part 102 is directly connected with the interior of the housing, for example via the suction opening described above. Preferably, the housing and the suction portion are configured such that no gas can leave the housing other than via the suction portion 102. Thus, the housing together with the suction portion can be regarded as a substantially closed system.

Downstream of the suction section, a droplet separator 106 is first arranged, which is connected to the suction section 102 in such a way that the gas sucked in by the suction section from the housing can be diverted into the droplet separator. In this sense, the droplet separator is arranged downstream of the suction portion in the gas flow direction.

Upstream or downstream of the droplet separator 106, one or more blowers can be arranged, via which a sufficient gas flow is generated in order to convey the gas from the suction section through the droplet separator. In the droplet separator, the gas sucked from the housing therein is usually cooled so that the temperature drops, for example, below the condensation temperature of the gum components contained in the gas. This results in separation of the droplets.

Then, a cyclone unit 103 is arranged downstream of the droplet separator. The cyclone unit generates a vortex of air in the form of a "cyclone", for example via one or more blowers. Thereby, the droplets still contained in the gas mixture after leaving the droplet separator are allowed to separate from the rest of the gas, because centrifugal forces act on the droplets, pushing them towards the outer wall of the cyclone unit. To further facilitate separation, the outer wall of the cyclone unit, on which the separated droplets impinge, can be cooled to prevent re-evaporation. The cyclone unit can comprise a collecting container 104 or can be assigned to such a collecting container. The droplets separated in the cyclone unit can then be guided into the collecting container. To this end, for example, small holes or other openings can be provided at suitable locations in the cyclone unit 103, through which liquid can enter the collection container 104.

The cyclone unit is normally able to reliably separate only droplets exceeding a certain minimum mass/size, since the centrifugal force acting thereon may otherwise be too low or prevent these droplets from spreading out (in the direction of the wall of the cyclone unit) due to the remaining air vortex in the cyclone unit. In order to ensure that the cyclone unit can be operated as efficiently as possible and that the undesired constituents can be removed from the gas as completely as possible by separation, it is provided that the droplet separator is constructed such that the droplets are separated from the gas at least according to a minimum mass/minimum size. This can be brought about, for example, by a suitable choice of the temperature in the droplet separator and/or by a condensation area or the like.

The suction of the suction section as well as the efficiency of the cyclone unit and the capacity of the collecting container 104 can be selected in dependence on the remaining system parameters, in particular in dependence on the total amount of glue heated (e.g. a certain amount of glue per hour). Thus, the suction portion can be configured such that an air flow with a throughput of 10 liters/minute or 5 liters/minute, but also more or less, can be achieved. The cyclone unit must then be able to achieve a corresponding throughput, and the collecting container can have a volume of up to 500ml, for example. The larger the volume of the collecting container, the less frequently it is necessary to empty the collecting container. With the appropriate specifications, the cyclone unit will also require little cleaning.

However, since such a replacement operation is unavoidable in long runs, it can be provided in one embodiment that the cyclone unit and/or the collecting container are connected to the suction part or the hotgel device or the droplet separator in a manner that enables quick replacement, so that they can be removed with only little expenditure of time and mechanical effort and can be replaced by a new cyclone unit or collecting container. The droplet separator can also be constructed so as to be able to be replaced quickly.

Preferably, the state of the cyclone unit can be monitored. Thus, a suitable sensor, for example a pressure sensor, can be connected to the cyclone unit, which sensor measures the pressure difference across the cyclone unit. The measurement results can be displayed, for example, on a control unit (in particular a display screen of the control unit) or processed in some other way by means of a computer or similar device for data processing. Methods for measuring specific properties, such as inductive, optical or capacitive methods, are also possible here. The obtained measurements were used to confirm: whether the cyclone unit and in particular the wall on which the droplets are separated have been studded or clogged by the condensate of the glue. If this is confirmed, an operator can be required to replace or clean the cyclone unit.

In this case, it is also conceivable to predict the future state of the cyclone unit at a future point in time on the basis of the measured values and/or a suitable flow model and a condensation model of the cyclone unit and to automatically schedule the cyclone unit, for example by means of a labeling machine or a control unit, such as a computer, associated with the labeling machine via the internet or other data connection. Maintenance intervals can also be known and communicated to an operator based on predicted future conditions.

Alternatively or additionally, it can also be provided that at least the collecting container has a discharge opening via which the condensate can be discharged at specific time intervals. Thus, for example, when a filling level of 80% is reached, an indication can be issued via a control unit (e.g. a computer) that the collecting container has to be emptied or replaced. For this purpose, for example, a fill level sensor can be provided in the collecting container. The fill level sensor can be designed as mechanically simple as possible in the form of a float.

In fig. 1, an escape opening 105 is also shown through which the gas can leave the hotgel device at least after passing through the cyclone unit. Although not shown in this figure, a filter unit can be arranged downstream of the cyclone unit and upstream of the escape opening. The filter unit can comprise one or more filters in the flow direction of the gas introduced therein proceeding from the cyclone unit, in particular a fine filter and a paper filter with activated carbon arranged downstream of the fine filter.

Although the liquid residue of the glue can be sucked from the gas sucked from the housing by the suction part by the cyclone unit, the filter unit also allows filtering small particles.

Fig. 2 shows a section through the hot glue device according to fig. 1. As shown here, the hot glue device comprises a glue roller 222 inside the housing 101, from which glue can escape 222 and can be separated via a glue scraper 221. For this purpose, the rubber roller can be set in rotation.

Furthermore, a fresh air opening 223 in the housing 101 is shown in this figure. The fresh air opening is located on one side 230 of the housing 101, for example on one of the sides of the rubber roller 222. In this illustration, a suction opening 224 is shown on the side 231, with which gas can be sucked from the housing. As can be seen, the fresh air opening 223 and the escape opening 224 are arranged on different sides of the housing. The resulting flow path of the gas thus covers as much of the area within the housing as possible. It can be particularly advantageous if the suction opening 224 is arranged on the side of the housing opposite the side in which the fresh air opening 223 is arranged, as seen from the rubber roller. It is also possible to provide a plurality of suction openings in order to avoid "dead spaces" from which gas can be sucked only very inefficiently.

The suction portion can also comprise a blower in the region of the suction opening 224, but downstream of the suction opening 224, but at least upstream of the cyclone unit or the optional filter unit, the direction of rotation of the blower being oriented in such a way that the blower sucks in gas from the housing 101 through the suction opening and conveys the gas to the cyclone unit 103. Alternatively or additionally, one or more further blowers can be provided, for example upstream or downstream of the droplet separator and/or upstream or downstream of the optionally provided filter unit, to generate a sufficient air flow.

The suction opening or a channel directly coupled thereto or a droplet separator (not shown here) can be connected here with the flow channel of the cyclone unit, so that the gas passing through the suction opening reaches the cyclone unit.

In fig. 3, a cross section through a hot glue device is schematically shown. This section is perpendicular to the section plane shown in fig. 2 and extends through the collecting container or cyclone unit 103. Here, a droplet separator 353 can be seen, which connects the suction to the cyclone unit 103 at the lower end or at least at the portion opposite the upper end of the cyclone unit to the escape opening. Below the cyclone unit 103 is arranged a collection container 104. The collection container can be supported, for example, by the illustrated holding portion 352.

As described above, it can be advantageous to be able to determine the filling level of the collection container and to issue an indication to the operator, for example by means of the control unit, on the basis thereof, as to emptying or replacing the collection container 104. For this purpose, the holder 352 can advantageously be constructed as a weighing counter or comprise such a weighing counter, so that the filling level of the collecting container can be ascertained on the basis of a comparison of the empty weight of the collecting container and the measured weight of the collecting container. If the difference reaches a predetermined value, for example 200g, the operator can be required to replace the collection container.

The cyclone unit shown here can have a spiral-shaped flow channel inside through which the gas sucked by the suction part from the interior of the housing 101 must pass before reaching the escape opening 105. As the gas passes through the flow channel 354, the gas is further cooled and droplets contained after the droplet separator or newly formed during passage through the flow channel can be separated out, for example, on the side walls of the flow channel. It is thus ensured that the condensate remains effectively in the cyclone unit and can be guided into the collection container 104 by passing it, for example, along a flow channel instead of flowing back into the droplet separator at the lower end, but can enter into the collection container via suitable openings or holes.

Furthermore, a cooling system 355 is schematically shown in the region of the cyclone unit and the droplet separator. The cooling system can be configured not only as part of the cyclone unit 103 or of the droplet separator, but can also be integrated completely or partially into the cyclone unit 103 and/or the droplet separator 353.

In one embodiment, the cooling system is configured to cool at least the condensing medium in the flow channels 354 and/or the droplet separator, which facilitates formation of the condensate. This condensate is generally constituted by gas evolution of the hot glue, which is inevitably generated when the hot glue is heated. By specifically cooling the gas mixture (consisting of air and hot glue gas) flowing through the flow channel 354 and the droplet separator 353, it is possible to ensure as complete a condensation of the hot glue gas as possible and an accompanying separation from the remaining gas, so that an efficient separation of the condensate into the collecting container can be ensured.

The collecting container itself can additionally be equipped with a heating element (for example an infrared radiator or a heating coil) or a heating element can be assigned to it. With this heating element, the condensate located in the collecting container can be kept in a liquid state, which enables drainage of the condensate and thus reuse of the collecting container. The cooling system and the optionally provided heating element can be connected to each other via a common heat exchanger system for energy saving purposes, 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 via a central control unit of the labeling machine in which the hot-glue device is located, so that their respective powers (i.e. cooling power and heating power) are controlled in dependence on the remaining system parameters. For example, if the air flow through the cyclone unit and/or the droplet separator is relatively low, only a low cooling power can be caused. If the gas flow is increased, the cooling power can be increased appropriately. The heating element can also be controlled in such a way that its heating output increases as a function of the filling level of the collecting container. It is thus ensured that the liquid state is maintained as far as possible even in the case of a high filling level of condensate in the collecting vessel and that no boiling unintentionally starts or at least no significant steam generation occurs in the case of a low filling level of condensate.

In fig. 3, also downstream of the cyclone unit, but before the escape opening 105, a further blower 351 is shown. The blower is capable of sucking air or gas mixture out of the cyclone unit and ejecting it via the escape opening 105, so that unintentional swirling inside the cyclone unit does not negatively affect the gas flow and so that the cyclonic air swirling promotes separation of liquid droplets as efficiently as possible.

In order to continue to improve the cooling of the gas and the associated condensation described in fig. 3, a cooling system, not shown here, can be provided which additionally cools the housing 101.

Cooling of the housing 101 and/or the flow channel 354 and/or the droplet separator can generally be ensured by a double-walled construction, wherein cold air is guided into the intermediate space in the double-walled housing, for example via external air supply and/or by means of an (external) air conditioner, which cools the housing wall and also (indirectly) the interior of the housing and thus the gases generated when the glue is heated. Cold air can be taken from the exhaust air of a blow molding machine of a container processing plant interconnected (docked) with the labeling machine, for example. Liquid cooling, for example in the case of using cooling water for switch cabinets and the like, is also conceivable here. Adiabatic cooling can also be considered.

Different materials can be considered as filter media for the optionally provided filter unit (see fig. 1). Thus, while a cardboard filter, a paper filter or filter wool can be used, a glass fiber wool, a ceramic filter, a sintered metal, a steel wool, a general chemical filter material, a depth filter, an electrostatic filter, a water filter can also be used. However, a fine filter in the gas flow direction and a paper filter with activated carbon arranged downstream thereof are particularly preferred here, since small particles which are not in the liquid state can be filtered effectively in this way.

In order to neutralize the unpleasant odours in the region of the labeling machine as completely as possible, preference can also be given to using carbon filters. The filter unit as well as the cyclone unit can also be connected to a cleaning system, such as a backwash section, in order to prevent clogging for as long as possible. The backflushing section can, for example, flush the filter unit and/or the cyclone unit with a suitable flushing medium, preferably a medium that loosens all residues, at specific time intervals or depending on the state of the filter (the determination of which is explained in more detail above), with which residues can be removed. Water or special solvents can be considered here. The rinsing medium with the necessary loosening of the glue residues can be fed to the collecting container 104. This is particularly advantageous because it prevents the glue remaining in the collection container from hardening.

According to the invention it can also be provided that the cyclone unit is connected with the housing or the suction part via a droplet separator in the shape of a U, as shown in fig. 4.

In this embodiment, droplet separator 470 is directed out of the suction or housing. The droplet separator 470 has a U-shape, wherein the collection container 104 is connected to the lowest point of the U-shape. This therefore facilitates the discharge of condensate from the droplet separator when the droplets are formed so large that they are no longer moved further by the gas flow and settle.

Furthermore, it can be provided that the inner surface of the droplet separator comprises baffles, screens or ribs, so that the condensation of the gas is assisted by the increased surface. Furthermore, the inner surface of the droplet separator can be provided with an oleophobic coating. Drainage of condensate at the surface of the pipe can thus be facilitated. This includes not only suitable coatings, but also polishing or painting and other surface modulations can cause this effect.

The droplet separator can be embodied with ribbing on the outer surface and/or double-walled. It is thus possible to contribute to the cooling of the inner space and thus to a better achievement of the condensation of the gas.

The droplet separator can also have a further bypass section, not shown here, which is connected to the glue container 480 and opens into the pipe at least in the region arranged upstream of the collecting container 104. Thus, the gas generated when the glue is heated in the glue container 480 can be immediately sucked and transferred to the collection container.

In the "descending" branch 471 of the U-shaped droplet separator 470, a medium can preferably be arranged which is particularly advantageous for separating out the separated medium, so that these droplets can enter the collection container 104. The descending branch can then substantially cause further cooling of the gas, or comprise a blower which then conveys the gas to the cyclone unit 103.

Additional equipment, such as a blower, which may be provided after the cyclone unit 103, can be provided similarly to the above-described embodiment. The escape openings shown here on the cyclone unit are therefore to be understood only as exemplary.

The droplet separator and all further components of the embodiment depicted in fig. 4 can also comprise all means for cooling already described. In particular, the droplet separator can be of double-walled design and a cooling medium can be circulated within the double wall in order to facilitate the condensation of the gas.

Although not shown here, it can also be provided that the housing 101 is not completely "opaque". In principle, however, a robust embodiment of the housing, for example from steel, is preferred. However, in order to monitor the process within the housing (in particular the interaction between the glue roller and the squeegee and the transfer of the glue to the label by means of the squeegee), it can be provided that the housing is at least partially transparent, in particular comprises a viewing window. The observation window can be designed for opening, wherein this opening is preferably not possible during operation in order to avoid the escape of gases that may be harmful to health. The viewing window can therefore be connected to a suitable detector, for example in the form of a magnetic switch or an ultrasonic sensor, which registers the opening or attempted opening of the viewing window and causes the labeling machine and the hot glue device to be switched off.

In general, the hot glue device according to the invention, together with its droplet separator and cyclone unit, is constructed such that the air that finally exits from the cyclone unit into the environment (i.e. after passing through the droplet separator, cyclone unit and possible filter unit) has a breathing air quality, even preferably a clean room quality.

The embodiments described here can be used both for individually implemented labeling machines and for "one-piece" labeling machines. The latter operates in the context of a container treatment plant together with a preceding blow molding machine (arranged upstream in the transport direction of the containers) or other apparatuses for producing containers and a downstream filling and/or sealing machine (arranged downstream in the transport direction of the containers).

Claims (13)

1. Hot glue device for labeling machines in the beverage processing industry, comprising at least one glue roller and a glue container, and a housing in which the glue roller is arranged, characterized in that the hot glue device comprises a suction section connected with the housing, which suction section can suck gas from the interior of the housing before the gas can leave the hot glue device, wherein a cyclone unit is provided downstream of the suction section in the flow direction of the gas and is connected with the suction section via a droplet separator.

2. Hot glue device according to claim 1, characterised in that a filter unit is arranged after the cyclone unit in the flow direction of the gas, which filter unit comprises a fine filter and a paper filter with activated carbon arranged downstream of the fine filter.

3. Hot glue device according to claim 1 or 2, wherein the housing comprises a fresh air opening arranged on a first side of the housing, and wherein the suction portion comprises a suction opening through which gas can be sucked from the interior of the housing, wherein the suction opening is arranged on a second side of the housing.

4. Hot glue device according to claim 3, wherein the second side and the first side are opposite each other or at least separated from each other by two further sides.

5. Hot glue device according to claim 1 or 2, wherein the cyclone unit comprises a collection container for condensate collected by the cyclone unit.

6. Hot glue device according to claim 5, wherein the cyclone unit and/or the collection container and/or the filter unit are connected to the suction part and/or the hot glue device in a quick-change manner.

7. Hot glue device according to claim 2, wherein the suction section comprises at least one blower arranged upstream or downstream of the filtering unit.

8. Hot glue device according to claim 1 or 2, wherein downstream of the cyclone unit an escape opening is arranged through which gas that has passed the cyclone unit can escape.

9. The hot glue device according to claim 1 or 2, further comprising a glue scraper for scraping glue from the glue roller and transferring the glue to a label, wherein the glue scraper is arranged in the housing.

10. Labelling machine for labelling containers in the beverage processing industry, characterised in that it comprises a hot glue device according to any one of claims 1 to 9 for applying glue to the labels with hot glue.

11. A labelling machine according to claim 10, wherein the container is a bottle.

12. Container treatment plant for treating containers in the beverage processing industry, comprising in the transport direction of the containers a blow moulding machine, a labeling machine and a filling machine, wherein the labeling machine is a labeling machine according to claim 10 or 11.

13. The container processing facility according to claim 12, wherein the containers are bottles.

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