EP2610186A1 - Dispositif et procédé d'application de manchons thermo-rétractables sur des récipients - Google Patents

Dispositif et procédé d'application de manchons thermo-rétractables sur des récipients Download PDF

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Publication number
EP2610186A1
EP2610186A1 EP12190786.9A EP12190786A EP2610186A1 EP 2610186 A1 EP2610186 A1 EP 2610186A1 EP 12190786 A EP12190786 A EP 12190786A EP 2610186 A1 EP2610186 A1 EP 2610186A1
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EP
European Patent Office
Prior art keywords
shrink sleeves
shrink
sleeves
containers
units
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
EP12190786.9A
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German (de)
English (en)
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EP2610186B1 (fr
Inventor
Dieter Leykamm
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
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Krones AG
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Publication date
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Publication of EP2610186A1 publication Critical patent/EP2610186A1/fr
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Publication of EP2610186B1 publication Critical patent/EP2610186B1/fr
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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
    • B65C3/00—Labelling other than flat surfaces
    • B65C3/06—Affixing labels to short rigid containers
    • B65C3/065—Affixing labels to short rigid containers by placing tubular labels around the container

Definitions

  • the invention relates to an apparatus and a method for attaching shrink sleeves to containers.
  • Containers such as beverage bottles, can be labeled, inter alia, by putting tubular label sleeves over the container jacket surface.
  • Both shrink sleeves and elastic film sleeves, so-called stretch sleeves, are suitable for this purpose.
  • WO 2008/076718 a device for labeling containers with highly elastic film sleeves, which are provided on a labeling wheel rotating labeling with spreader units for receiving and spreading the film sleeves.
  • the spreader units comprise a plurality of substantially parallel to each other and circumferentially grouped around a central recess spreading fingers. These are radially displaceable relative to the central recess and can be moved apart so far that a slipped over the Sp Dahlfinger film sleeve is spanned by the spreading fingers and a bottle to be labeled can be pushed through the central recess upwards in the spread film sleeve.
  • the film sleeves are fixed on the spreading fingers during insertion of the bottles in the stretched state by applying a negative pressure by means of suction on the outside of the spreading fingers on this. After reaching a suitable for subsequent labeling Sp Gillfinger spreading position an overpressure is applied instead of the negative pressure to repel the film sleeves of the spreading fingers, and to facilitate the transfer of the film sleeves to the bottles to be labeled in further advancing the bottles.
  • shrink sleeves are from the EP 0950609 and the EP 1091877 Devices are known in which in a similar manner circumferential labeling stations are provided with half-shell-shaped expanding jaws for receiving and opening the shrink sleeves. There are then jaws provided in the region of the spreader units with which the shrink sleeves can be fixed in the open state from the outside on the spreader jaws, so that they maintain their position during insertion of the bottles on the spreader units.
  • the EP 0950609 further describes stationary hot air blowers provided on the outside of a circular transport path of the labeling stations for shrinking the shrink sleeves onto the bottles.
  • the hot air blower surround the labeling device thereby approximately over a machine angle of 270 °.
  • the labeling by means of shrink sleeves and elastic film sleeves thus differs fundamentally with respect to the attachment of the label sleeves in the field of spreader units, especially in a section immediately before the transfer to the container, which shrinking sleeves space-consuming heating units in the periphery of the labeling are needed. These also impede the freedom of movement of further mechanical components required for labeling.
  • these circumferential shrinking stations which are each provided on: Spreader units for receiving and spreading the shrink sleeves; Positioning units for positioning the containers, in particular at a predetermined transfer position, in the spread shrink sleeves; and heating units, with which at least a portion of the shrink sleeves accommodated by the spreader units can be shrunk in order to produce a frictional engagement with the containers positioned in the shrink sleeves, in particular in the transfer position.
  • the heating units are moved together with the shrinking stations, it is possible to specifically heat a portion of the shrink sleeves that is particularly suitable for attaching, in particular for attaching, the shrink sleeves over a sufficiently long period of time.
  • the heating units for fixing the shrink sleeves are formed at a predetermined labeling height of the containers, in particular for attaching the shrink sleeves in the Etikettier Hab.
  • the containers are preferably raised or lowered in a defined vertical transfer position. It is thus possible to set a predetermined labeling height, in the sense of a predetermined vertical relative position between the containers and the shrink sleeves.
  • the shrink sleeves are at least attached to the containers in this relative position, so that the containers can be removed from the spreading units together with the shrink sleeves, while maintaining the relative position.
  • Pinning in contrast to a complete shrinking of the shrink sleeves to the containers, is to be understood as a reliable fastening of the shrink sleeves in a predetermined position, for example the labeling height.
  • Preferably apart expanding segments are formed on the spreader units and designed such that an upper edge region of the spread shrink sleeves protrudes beyond the Sp Drsegmente.
  • This makes it possible to provide the partial area according to the invention for shrinking the containers within the upper edge area of the spread shrink sleeves. This allows a reliable attachment of the shrink sleeves and a gentle material removal of the shrink sleeves of the expansion segments.
  • it can be avoided that a shrinkage between the shrink sleeves and the expansion segments is achieved or enhanced undesirably by shrinking the shrink sleeves. This would be the case, for example, if the shrink sleeves were shrunk predominantly in a vertical overlap region with the expansion segments.
  • a suitable upper edge region of the shrink sleeves can be provided, for example, by adjusting the height of the expansion segments to the height of the shrink sleeves.
  • the heating units are further configured for selectively heating the upper edge region.
  • heat can be deliberately introduced into the upper edge region, for example at least 50% of the heat output delivered or a comparable variable which is characteristic for the local distribution of the heat flow.
  • a heating of the entire shrink sleeve, such as in a shrink tunnel would be.
  • Selective heating can be achieved, for example, by applying a heat radiation and / or a hot air stream with a suitably limited one Cross section is directed to the upper edge area.
  • Selective heating would also be possible by pressing appropriately shaped heating surfaces, ie in direct contact with the shrink sleeve. Also conceivable are variants in which power components for heating the upper edge region are adapted in time.
  • the heating units are designed such that the shrink sleeves can shrink on at least two mutually opposite circumferential portions.
  • a preferred substantially symmetrical shrinkage effect can be achieved.
  • Shrinkage is particularly advantageous in circumferential subareas offset by 90 °, 120 ° or 180 ° from one another.
  • a particularly uniform labeling result can be achieved in a subsequent complete shrinkage of the shrink sleeves.
  • unwanted distortions of imprints can be avoided.
  • the shrink sleeve can attach particularly reliable. By this is meant that only relatively small portions need to be shrunk in order to achieve the required adhesion to the containers.
  • the heating units preferably comprise fan heaters and / or radiant heaters.
  • the shrink sleeves can shrink in this way without contact.
  • the design freedom in the design and positioning of the heating units compared to a direct contact of heating jaws, clamps and the like is improved.
  • collisions with other parts of the system can be avoided even without additional evasive movements of the heating units.
  • Hot air streams and / or heat rays can be adapted particularly flexibly to different sleeve materials, material thicknesses, dimensions of the shrink sleeves and the position of the subregions to be shrunk.
  • the heating units comprise mutually opposite, annular or star-shaped distributed heating elements. This makes it possible to realize an extensive uniform and / or full shrinkage of the shrink sleeves. Likewise, a complete shrinking of the shrink sleeves is possible.
  • the heating elements may be, for example, individual radiant heaters and / or hot blower and / or associated air ducts
  • the heating units are height adjustable with respect to the spreader units.
  • individual heating elements or the entire heating unit could be adjustable along a vertical guide in order to adapt the device according to the invention to different shrink sleeves, labeling heights and / or partial areas of shrinkage.
  • a labeling machine comprising the device according to the invention and a shrink tunnel for shrinking the shrink sleeves.
  • shrink sleeves adhering to the invention can be completely shrink-fitted.
  • the heating units can then be realized for the attachment in a relatively small size and can be comparatively easily integrated into existing labeling.
  • labeling machines for elastic film sleeves could be upgraded with the heating units according to the invention.
  • the turntable can be used either for attaching the shrink sleeves or for labeling with stretch sleeves.
  • the final shrinking of the shrink sleeves can then be done in a separate step. For a format change between elastic film sleeves and shrink sleeves then possibly only an exchange of Sp Grandesegmente and a connection or disconnection of the heating units is required.
  • the stated object is further achieved by a method according to claim 10, wherein the following steps are carried out with the device according to the invention in the area of the shrinking units: a) spreading the shrink sleeves; then b) inserting the containers into the shrink sleeves; and thereafter c) producing a frictional connection between the spread shrink sleeves and the inserted containers by thermally shrinking at least a portion of the shrink sleeves.
  • the shrink sleeves can in this way shrink by targeted heat flows and / or heat radiation targeted over a suitable duration to produce a suitable adhesive effect, for example, for attaching or shrinking the shrink sleeves.
  • the shrink sleeves are attached to a predetermined labeling height with respect to the container.
  • the labeling height can be adjusted by varying the transfer position of the container in the spreading units, in particular by the stroke of the container in a simple manner.
  • the shrink sleeves regardless of the type of sleeve, can be kept at a constant height, in particular in abutment against provided on the spreader units or spreading segments lower support plates.
  • the expansion segments are preferably moved apart so far that the shrink sleeves are fixed by friction with the expansion segments in abutment against the lower support plates.
  • the shrink sleeves are preferably shrunk in such a way that the shrink sleeves and the container can be pulled off together from the expansion segments.
  • This can be achieved, for example, by a suitable projection of the shrink sleeves over the expansion segments and the selective adhesion of the shrink sleeves to the containers in the partial region according to the invention, So within the protruding edge portion of the label sleeve can be achieved.
  • a common peeling is in this case a non-destructive and position-preserving peeling the container and the shrink sleeves to understand, so that the shrink sleeves can be supplied in a predetermined labeling height together with the containers a shrink tunnel or the like.
  • the containers are made of plastic, and the attachment is at least partially effected by a material bond between the shrink sleeves and the containers.
  • the heating of the shrink sleeves and the plastic container causes at least one acting in the vertical direction adhesive force by at least superficial melting or softening of the adhesion.
  • An adhesive bond could additionally be reinforced by an adhesive layer provided on the inside of the shrink sleeve.
  • step c) an upper free projection of the shrink sleeves of at least 10%, in particular at least 20%, of the height of the shrink sleeve is provided.
  • the partial area to be shrunk for the required adhesive effect can be selectively and rapidly shrinked.
  • a sufficiently large overlap region between the shrink sleeve and the expansion segments is then ensured in order to set a correct, preferably coaxial position of the shrink sleeves on the expansion segments.
  • the shrink sleeves can be guided with sufficient accuracy and attached to the containers with sufficient selectivity and reliability.
  • the labeling height of the lower edge of the shrink sleeves with respect to the container footprint is at least 5 mm.
  • the method according to the invention can thus be used particularly advantageously for partial labels.
  • particularly suitable shrink sleeves for example, a height of 20 to 100 mm, in particular from 30 to 60 mm.
  • FIG. 1 comprises a preferred embodiment of the inventive device 1 for attaching, in particular pinning, of shrink sleeves 2 on containers 3, such as beverage bottles, a driven in the direction of transport 4a turntable 4, on the circumferentially uniformly distributed shrinking stations 5 are arranged.
  • These comprise each spreader units 6 for receiving and spreading the shrink sleeves 2, heaters 7 for shrinking the shrink sleeves 2 on the containers 3 and removal units 8 for gripping and lifting the container 3 together with the shrink sleeves 2.
  • the heating means 7 are in the FIG. 1 schematically in the form of two opposite in the direction of adjacent shrink sleeves 3 aligned heating elements 7a, 7b indicated.
  • a control unit 9 for activating the device 1 according to the invention, a dispensing unit 10 for dispensing the shrink sleeves 2, an inlet star wheel 11 and an outlet star wheel 12 for the containers 3.
  • a shrink tunnel 13 is connected to the device 1 according to the invention, in which the shrink sleeves 2 are completely shrunk onto the containers 3, so that the finished labeled containers 3 can be fed to the end of the shrink tunnel 13 for further processing.
  • Suitable feed devices and discharge devices for the container 3 are known from the prior art and therefore not explained in detail.
  • the FIG. 2 shows by way of example two of the shrinking stations 5 with the spreader units 6, each comprising expansion segments 6a for receiving and spreading the shrink sleeves 2, with the heating elements 7a, 7b, such as fan heaters, and with positioning units 14 for receiving and lifting the container 3 in the spread shrink sleeves 2.
  • guide shafts 14a or the like are preferably formed on the positioning units 14.
  • the positioning units 14 are driven for example by a schematically indicated curve control 14b or by a suitable electrically controllable drive, such as a servo motor or a pneumatic drive.
  • Drive motors 8a and gripping elements 8c are also indicated schematically at the removal units 8. These can be opened and closed for gripping the containers 3, for example with a switching cam 8b, but just as well with electrically actuated actuators.
  • FIG. 3 shows a spreading unit 6 according to the invention with the expansion segments 6a, which are arranged around a central recess 6b of the spreading unit 6 around and preferably in the radial Direction with respect to the central recess 6b are movable.
  • the expansion segments 6a are for receiving the shrink sleeves 2 preferably in an inner dispensing position R1 and are driven to open the shrink sleeves 2 in an outer spread R2. This can be adjusted so that the shrink sleeves 2 are secured on the expansion segments 6a by means of frictional engagement against twisting and / or falling.
  • the shrink sleeves 2 are in an upper edge region 2a on the Sp Schwarzsegmente 6a addition.
  • the shrink sleeve 2 is thermally shrunk for adhering to the container 3.
  • the heating units 7 in the region of the expansion segments 6a run around with these.
  • at least two heating elements 7a, 7b are provided for shrinking the upper edge region 6a into at least two partial regions 6b.
  • the heating elements 7a, 7b are then preferably arranged such that at least two mutually substantially opposite partial regions 6b can be shrunk simultaneously or at least overlapping in time.
  • an undesirable asymmetric shrinking and warping of the shrink sleeves 2 when adhering to the containers 3 can be avoided.
  • the shrink sleeves 2 can be adhered to the containers 3 in a symmetrical position suitable for labeling while maintaining a predetermined labeling height with respect to the containers 3.
  • the heating units 7 are preferably designed for introducing the thermal energy by means of convection and / or thermal radiation.
  • Suitable heating units 7 are, for example, fan heaters and / or radiant heaters.
  • individual heating elements 7a, 7b, 7c can be designed as separate hot air blowers, as air ducts of a common hot air blower, as radiant heaters and as combinations thereof.
  • a direct contact of the heating elements 7a, 7b, 7c dispensable with the shrink sleeves. Accordingly, the heating units 7 according to the invention can be integrated comparatively easily in the area of the spreader units 6.
  • the heat for the shrinking of the shrink sleeves 2 on the containers 3 by heat conduction by means of heating jaws (not shown) or the like supply.
  • the container 3 would first be introduced into the shrink sleeves 2 to adjust the labeling height.
  • Heating jaws or the like could then be closed from the outside around the partial areas 2b of the shrink sleeves 2 to be heated.
  • Such heating jaws could also be provided with an additional clamping action in order to fix the shrink sleeves 2 until they are transferred to the containers 3 on the expansion segments 6a.
  • FIG. 4F Such a configuration is schematically shown in FIG. 4F shown.
  • the labeling height of the shrink sleeve 2 is preferably adjusted by a suitable stroke of the positioning unit 14.
  • the device 1 according to the invention is particularly suitable for shrink sleeves 2 in the form of partial labels. By definition, these do not reach down to the base of the container 3 in the finished labeled state. An exact and reliable positioning in the respective labeling height to the final shrinking of the shrink sleeves 2 was previously only possible with partial labels in complex labels and disturbing individual process steps holding elements.
  • shrink sleeves 2 having a height of 20 to 100 mm, in particular of 30 to 60 mm, are particularly suitable for shrinking according to the invention.
  • the label projection of the shrink sleeves 2 via the expansion segments 6a is preferably at least 10% of the height of the shrink sleeves 2. This ensures a sufficient frictional connection of the shrunk part 2b with the container 3.
  • the joint removal of the attached shrink sleeves 2 with the containers 3 can be facilitated by the fact that the shrink sleeve 3 in the vertical overlap region 2c with the expansion segments 6a is not shrunk or only to a small extent.
  • the removal can also be facilitated by the fact that the expansion segments 6a are moved towards each other from the spread position R2 to cancel a frictional engagement between the shrink sleeve 2 and the expansion segments 6a, which may be generated in the expanded position R2.
  • the upper edge region 2a is selectively heated.
  • a shrinkage of the shrink sleeve 2 required for the attachment takes place, while in the underlying overlap region 2c with the expansion segments 6a the shrinking of the shrink sleeve 2 is preferably avoided.
  • the attachment of the shrink sleeve 2 in the sub-area 6b can also be done in particular by the heating of the shrink sleeve 2 and the underlying container 3 after making the contact between the shrink sleeve 2 and the container wall a fabric connection is made.
  • this is meant, for example, a merging or merging of the respective plastic materials of the shrink sleeve 2 and the container 3.
  • the adhesive effect can also be improved in that the shrink sleeve 2 becomes sticky due to the heating during shrinking.
  • the shrink sleeves 2 After attaching the shrink sleeves 2 to the containers 3, these can be removed together with the lifting unit 8 from the spreader units 6 and transferred with the aid of the outlet star wheel 12 to a suitable discharge device.
  • the containers 3 are preferably transferred with the attached shrink sleeves 2 to the shrink tunnel 13, in which the attached shrink sleeves 2 are completely shrunk onto the container 3.
  • the heating units 7 could also be designed for completely shrinking the shrink sleeves. It is then to provide for a full heat to the shrink sleeves 2.
  • a complete shrinking on the shrinking stations 5 would be particularly suitable for shrink sleeves 2 with a height of at most 50 mm.
  • the shrinking stations 5 can be controlled particularly flexibly, in particular the spreading of the expansion segments 6a and the heat release for shrinking the shrink sleeves 2.
  • the heating units 7 in particular the duration of the heat supply by individual heating elements 7a-7c, per unit time respectively supplied or discharged heat quantity, for example, based on the electric heating power, adjust variably, as well as suitable temperature ranges for shrinking, so for example, allowable maximum temperatures for certain materials and / or minimum temperatures for a sufficient shrinkage.
  • fan blowers could control fan power, airflow temperature, and turn-on and turn-off times.
  • the heating power and the duration of irradiation could be adapted, for example, to the absorption behavior of the shrink sleeves 2, for example to a specific color of the shrink sleeves 2. These parameters can be adjusted particularly precisely and via suitable machine angle ranges by running the heating units 7 with the shrink sleeves 2.
  • the positioning units 14 can be controlled particularly flexibly by means of electrically controllable drives. This is particularly advantageous because the labeling height of the shrink sleeves 2 with respect to the container 3 can be adjusted with the aid of the positioning unit 14. In this case, it would be possible in particular to monitor the labeling height before or after the shrink tunnel 13 in the current product flow, and, if necessary, the position of the positioning units 14 adjust for the shrinkage. In the same way, the heat supply for the shrinking of the shrink sleeves 2 could be readjusted if necessary. The control and / or readjustment of selected parameters is possible in particular individually for individual shrinking stations 5.
  • the heating units 7 could each comprise at least two, preferably oppositely oriented miniature blowers, which for example could have a capacity of 200 to 1000 watts.
  • Suitable temperatures of the discharged air stream are for example in the range of 500 to 800 ° C.
  • Suitable air flows are for example in the range of 10 to 50 1 / min.
  • a shrink sleeve 2 is dispensed onto the spreader unit 6 passing under the dispensing unit 10.
  • the expansion segments 6a of the expansion unit 6 are preferably located in an inner dispensing position R1 when dispensing the shrink sleeve 2.
  • the central recess 6 b is indicated for insertion of the container to be labeled.
  • the shrinking stations 5 with the heating units 7 circulate in the transporting direction 4a of the turntable 4, whereby only three heating elements 7a, 7b, 7c positioned circumferentially about the spreading segments 6a are indicated by way of example. These may be provided, for example, annular, star-shaped or only on two opposite sides of the shrinking stations 5.
  • FIG. 4B it can be seen that the height H1 of the expansion segments 6a is less than the height H2 of the shrink sleeve 2.
  • a projection 2b is provided over the expansion segments 6a.
  • the expansion segments 6a are shown in the spread position R2, in which the expansion segments 6a open the shrink sleeve 2 for the subsequent insertion of the container 3 to be labeled.
  • the expansion segments 6a are preferably moved apart so far that a frictional connection of the expansion segments 6a with the shrink sleeve 2 is produced.
  • the shrink sleeve 2 can be fixed on the spreader units 6 even without additional holding elements in a predetermined height position. It would also be conceivable, however, to firmly clamp the shrink sleeves 2 on the spreader units 6 by means of additional clamping jaws from the outside.
  • the insertion of the container 3 to be labeled into the opened shrink sleeve 2 is shown schematically.
  • the container 3 is preferably inserted on the positioning unit 14 from below into the central recess 6 b of the spreader unit 6.
  • the illustrated insertion of the container 3 in the so-called base handling is not absolutely necessary.
  • the container 3 could also be introduced in the so-called neck handling at its mouth region 3 a hanging from above into the opened shrink sleeves 2.
  • the positioning unit 14 is shown with the container 3 in a predetermined transfer position 15 for partially shrinking the shrink sleeves 2 on the containers 3.
  • the stroke of the positioning unit 14 also sets the labeling height 16 of the shrink sleeve 2 with respect to the container 3.
  • the labeling height 16 could be defined, for example, by the position of the upper or lower label edge.
  • the labeling height 16 can be readjusted individually during ongoing production, if necessary, even for individual shrinking stations.
  • Figure 4E can the shrink sleeve 2 shrunk after starting the transfer position 15 in the upper edge region 2a by heat 17 from the heating units 7 to the container 3 and thus fixed in the labeling height 16 to the containers 3.
  • the shrink sleeve 2 is shrunk in the sub-areas 2b, to attach the shrink sleeve 2 in the labeling height 16.
  • the subregions 2 b could, for example, be provided on two opposite side wall regions 3 b of the container 3. It would be possible shrinking any number of circumferential portions 2b, the full circumference shrinking the upper portion 2a or the shrinking of the entire shrink sleeve. 2
  • a complete shrinking of the shrink sleeve 2 would be, for example, by a continuous or stepped lifting of the container 3 from in the Figure 4E shown position 15 with continued heat supply 17 conceivable.
  • the heating units 7 would then have to be designed for a full heat supply 17.
  • the heat supply 17 is preferably stationary with respect to the spreader units 6.
  • the heating units 7 move continuously with the spreader units 6, at least during shrinkage of the shrink sleeve 2.
  • the heat supply 17, for example in the form of a stream of heating air and / or in the form of thermal radiation, can be directed particularly precisely onto the respective subregion 2b of the shrink sleeve 2 to be shrunk.
  • a suitable circumferential distribution of the shrinkable portions 2b can be achieved, for example, by means of a plurality of heating elements 7a - 7c. It would also be possible to pivot individual heating elements 7a - 7c about the main axis of the container 3 to be labeled Figure 4E for the sake of clarity, as well as the presented in the FIGS. 4A-4D shown, pointing in the plane of the heating element 7c. Associated with this would preferably be provided in the representation concealed, opposed heating element.
  • the heating units 7 could alternatively include heating jaws 7d, which can be pressed against the shrink sleeves 2 from the outside.
  • the heat supply 17 could be done in this case by heat conduction.
  • the heating jaws 7d could then, for example, be attached to clamping units 18 with which the height position of the shrink sleeves 2 with respect to the spreader units 6 during shrinking can be stabilized by clamping in the overlapping area 2c. It would also be conceivable to form the clamping units 18 in such a way that the overlapping area 2c is already clamped before shrinking the shrink sleeve 2, in particular during insertion of the container 3 into the spreader units 6. In principle, the same subregions 2b can be shrunk with the heating jaws 7d by convection and / or thermal radiation.
  • FIG. 4G shows the shrinking station 5 after the shrinkage of the shrink sleeve 2 according to the invention. This is at least so strongly adhered in the example that it can be deducted while maintaining the labeling height 16 together with the container 3 of the expansion segments 6a.
  • the mouth portion 3a of the container 3 is gripped and this lifted by the removal unit 8, of which only the gripping elements 8c are indicated schematically.
  • these are preferably compared to the spread R2 slightly towards each other, in particular up to a Abziehgna R3, in which the friction between the shrink sleeve 2 and the expansion segments 6a is at least so low that a material-friendly and the labeling height 16 ensuring removal of the container 3 is made possible.
  • the container 3 can then be supplied to the shrink tunnel 13 with the shrunk shrink sleeve 2 for complete labeling.
  • the heating units 7 are preferably electrically controllable in order to be able to adapt the shrinking parameters of the shrinking units 5 to different shrink sleeves 2, containers 3 and / or to different production conditions.
  • the intensity can be and adjust the duration of heat 17.
  • suitable temperature ranges, in particular of the shrinking portions 2b of the shrink sleeves 2 can be controlled electrically variable. These parameters could be set individually for individual shrinking stations 5 as well as individually for individual heating elements 7a-7c or heating sections 7d of the heating units 7. In this case it would also be possible to combine different heating elements, for example based on a hot air flow and / or heat radiation.
  • the heating units 7 can be easily incorporated into existing plant concepts without hindering other process steps or colliding with other machine components. That is, the individual heating elements 7a - 7c need not touch the shrink sleeves 2 and / or not be arranged in the immediate vicinity of the shrink sleeves 2 in order to achieve the stitching effect according to the invention by shrinking on the containers 3. Rather, the heating elements 7a - 7c can be arranged in suitable circumferential sections of the shrinking stations 5 and at a suitable distance from the shrink sleeves 2. Particularly advantageous in this case is a substantially circumferentially symmetrical arrangement of the heating elements 7a-7c, that is distributed, for example, opposite or star-shaped.
  • the heating elements 7a-7c or the heating units 7 can be displaced and / or pivoted vertically overall in order to selectively direct the heat supply into an area above the expansion segments 6a.
  • the spreading segments 6a may be designed for labeling with differently high shrink sleeves 2 as exchangeable clothing parts in order to be able to provide a suitable overhang 2b in the upper edge region 2a of the shrink sleeves 2 depending on the height of the shrinkable sleeves 2 to be shrunk.
  • the height H1 of the expansion segments 6a is adapted to the height H2 of the shrink sleeves 2 in a suitable manner for this purpose.
  • the attachment of the shrink sleeves 2 can be further optimized by the fact that the spreading of the shrink sleeves 2, the positioning of the container 3 in the spreading units 6 and the heat supply 17 synchronized with the heating units 7 can be controlled by the control unit 9.

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EP20120190786 2011-12-29 2012-10-31 Dispositif et procédé d'application de manchons thermo-rétractables sur des récipients Active EP2610186B1 (fr)

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DE102011090102A DE102011090102A1 (de) 2011-12-29 2011-12-29 Vorrichtung und Verfahren zum Anbringen von Schrumpfhülsen an Behältern

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EP2610186A1 true EP2610186A1 (fr) 2013-07-03
EP2610186B1 EP2610186B1 (fr) 2015-02-25

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CN106586110A (zh) * 2017-01-11 2017-04-26 广州赛维包装设备有限公司 转瓶机构及其无损伤进瓶装置

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EP0950609A2 (fr) 1998-04-16 1999-10-20 Krones Ag Appareil pour le traitement des conteneurs
EP1091877A1 (fr) 1999-04-30 2001-04-18 Krones Ag Procede et dispositif pour appliquer des etiquettes-manchons sur des objets
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WO2011015981A1 (fr) * 2009-08-03 2011-02-10 Sacmi Verona S.P.A. Dispositif d’application d’étiquettes thermorétrécissables
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CN103183158A (zh) 2013-07-03
DE102011090102A1 (de) 2013-07-04
CN103183158B (zh) 2016-04-13

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