WO2014208155A1 - Dispositif de thermorétraction de film rétractable - Google Patents

Dispositif de thermorétraction de film rétractable Download PDF

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Publication number
WO2014208155A1
WO2014208155A1 PCT/JP2014/058057 JP2014058057W WO2014208155A1 WO 2014208155 A1 WO2014208155 A1 WO 2014208155A1 JP 2014058057 W JP2014058057 W JP 2014058057W WO 2014208155 A1 WO2014208155 A1 WO 2014208155A1
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WO
WIPO (PCT)
Prior art keywords
shrink film
shrink
shrinkage
water vapor
heat
Prior art date
Application number
PCT/JP2014/058057
Other languages
English (en)
Japanese (ja)
Inventor
晶 植月
Original Assignee
株式会社フジシールインターナショナル
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 株式会社フジシールインターナショナル filed Critical 株式会社フジシールインターナショナル
Priority to JP2015523891A priority Critical patent/JP6405571B2/ja
Publication of WO2014208155A1 publication Critical patent/WO2014208155A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • B65B53/04—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
    • B65B53/063—Tunnels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B57/00—Automatic control, checking, warning, or safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes

Definitions

  • the present invention relates to a heat shrink device for shrink film, and more particularly, a heat shrink device for shrink film to which a cylindrical shrink film fitted around an article such as a PET bottle, a beer bottle, or a cup container is heat-shrinked and mounted. About.
  • containers such as PET bottles filled with liquid beverages such as soft drinks are usually provided with a cylindrical label made of a shrink film on which a product name, content display, or the like is printed.
  • This label includes a conveyor that conveys containers along a predetermined conveyance path, a label fitting device that fits a non-shrinkable cylindrical label on a container conveyed by the conveyor, and a cylindrical label that is fitted on the container.
  • the container is continuously mounted on a container by a label mounting system including a heat-shrinking device that heat-shrinks the container.
  • the heat-shrink device provided in such a label mounting system has a heat treatment chamber installed so as to cover a conveyor that conveys a container in which a cylindrical label is fitted, and a container that passes through the heat treatment chamber.
  • a heating means for heating the fitted cylindrical label with hot air or water vapor is provided, and the cylindrical label is heated and contracted while the container passes through the heat treatment chamber.
  • the cylindrical label when the cylindrical label is heated with water vapor, the entire cylindrical label can be uniformly heat-shrinked, so the design and characters printed on the cylindrical label are not easily distorted and can be finished beautifully. There is a problem that water drops adhere to the surface of the cylindrical label or the container, and the cardboard box or the like gets wet when packed in a box.
  • Patent Document 1 discloses a heat shrink device for shrink film that heats and shrinks the cylindrical label using high-temperature superheated steam. Has been.
  • superheated steam has a larger heat capacity than saturated steam, and the shrink film can be instantly heat-shrinkable to the limit shrinkage rate, so the length of the heat treatment chamber can be shortened and space saving can be achieved.
  • the supply amount to the heat treatment chamber can be reduced as compared with the case of saturated steam.
  • the entire tubular shrink film is not heat-shrinked with superheated steam and is attached at a stretch, but depending on the shape of the article to which the shrink film is attached, the temperature is relatively low.
  • a state where the shrink film is partly shrunk using the first water vapor to position the shrink film with respect to the article, and the other part of the shrink film is shrunk using the relatively high temperature of the second steam is a better wearing state. It may become.
  • the article to which the shrink fill is attached is a cup container having a tapered side surface, if the entire shrink film is thermally shrunk at once, the attachment position of the shrink film is shifted from the desired position on the tapered side surface.
  • the shrink film is shrunk using the second steam for the part that needs to be largely heat shrunk, and the first steam is used for the other part. It may be better to use and shrink.
  • the shrink film is heat-shrinked with the second water vapor and closely adhered to the neck. It is preferable to heat shrink the portion using the first steam.
  • the object of the present invention is to use a combination of heat shrinkage due to the relatively low temperature first steam and heat shrinkage due to the relatively high temperature second steam depending on the shape of the article to which the shrink film is attached,
  • An object of the present invention is to provide a heat shrink device for a shrink film capable of realizing a suitable shrink film mounting state.
  • the shrinkage apparatus for shrink film according to the present invention is provided to surround a conveyor that conveys an article on which the shrink film is fitted, and the shrink film is shrinked by heating to be attached around the article.
  • An apparatus comprising: a partial shrinkage zone for shrinking a part of the shrink film; and a whole shrinkage zone for shrinking a large part of the entire shrink film, wherein the shrink film has a relatively low temperature in the second shrinkage zone.
  • One of one steam and a relatively high temperature second steam is sprayed and partially contracted to fix the shrink film to the article.
  • the first steam and the second steam are applied to the shrink film.
  • first water vapor is water vapor having a temperature of 100 ° C. or less under the condition of 1 atm.
  • second steam is superheated steam having a temperature higher than 100 ° C. and lower than or equal to 300 ° C., preferably from 120 ° C. to 300 ° C. The superheated steam at 150 ° C., more preferably 150 ° C. to 180 ° C.
  • the shrink shrink apparatus for shrink film according to the present invention further comprises an additional shrink zone that is provided on the downstream side in the conveying direction of the article with respect to the entire shrink zone, and additionally shrinks a portion of the shrink film where shrinkage is insufficient.
  • the additional contraction zone the first water vapor, the second water vapor, or hot air may be used.
  • the article is a PET bottle, the first water vapor in the partial shrink zone, the second water vapor in the whole shrink zone, and the first water in the additional shrink zone. Water vapor may be used respectively.
  • the entire shrink zone has a cover that covers both sides and the upper side of the conveyor, and a state in which the shrink film is entirely shrunk from the outside. You may have a window which can be observed through this.
  • the height position and spray width of a nozzle that sprays the first water vapor, the second water vapor, or the hot air toward the shrink film in the additional shrinkage zone according to the observation result through the window may be configured to be adjustable from the outside of the cover.
  • the nozzle for spraying the first water vapor or the second water vapor onto the shrink film is constituted by a pair of nozzle members arranged side by side in the conveyance direction of the article.
  • the pair of nozzle members may be configured such that the height position and the angle with respect to the horizontal direction can be individually adjusted.
  • heat shrink by relatively low temperature first steam and heat shrink by relatively high temperature second steam depending on the shape of the article to which the shrink film is attached By using in combination, a suitable shrink film mounting state can be realized.
  • FIG. 2 is a cross-sectional view taken along the line AA in FIG. It is a front view which shows a pair of nozzle provided in a partial contraction zone. It is a front view which shows a pair of nozzle provided in the whole contraction zone. It is a front view which shows a pair of nozzle provided in an additional contraction zone.
  • (A)-(e) is a figure which shows the state in which the shrink film with which a PET bottle is mounted
  • worn is heat-shrinked, and is mounted in steps. It is a front view which shows roughly the whole heat shrink apparatus of the shrink film which is 2nd Embodiment.
  • (A)-(e) is a figure which shows the state in which a shrink film is heat-shrinked and mounted in a beer bottle type container in the heat shrinking apparatus of the second embodiment. It is a front view which shows roughly the whole heat shrink apparatus of the shrink film which is 3rd Embodiment.
  • (A)-(d) is a figure which shows the state in which a shrink film is mounted in a cup container by heat shrinking in a stepwise manner in the heat shrinking apparatus of the third embodiment.
  • the article to which the shrink film is attached is described as a bottle container such as a PET bottle or beer bottle that contains a beverage, or a cup container that contains food such as cup noodles.
  • a bottle container such as a PET bottle or beer bottle that contains a beverage
  • a cup container that contains food such as cup noodles.
  • the present invention is not limited to this. Instead, any article may be used that is packaged by heat shrinking the shrink film and bringing it into close contact with the surroundings.
  • FIG. 1 is a front view schematically showing the entirety of a shrink film heating / shrinking apparatus (hereinafter, only referred to as a heating / shrinking apparatus as appropriate) 10 according to a first embodiment.
  • FIG. 2 is a cross-sectional view taken along the line AA in FIG.
  • the heating / shrinking device 10 is provided so as to surround the conveyor 2 that conveys the bottle container B on which the shrink film S is fitted, and is used for shrinking the shrink film S by heating and mounting it around the bottle container.
  • the bottle containers B are continuously conveyed in the direction of arrow E in a state where the bottle containers B are placed on the conveyor 2 at a predetermined interval.
  • a cylindrical shrink film S is fitted around the bottle container B (shown on the right side in FIG. 1) carried into the heat shrinking device 10 by the conveyor 2.
  • the shrink film S is a film fitting device (not shown), in which a long cylindrical film cut into a predetermined length is opened in a substantially cylindrical shape, and a bottle container is placed inside the shrink film S opened in this state. It is fitted by inserting B.
  • a stretched polystyrene film, a high-shrinkage polyethylene terephthalate film, a general heat-shrinkable polyethylene terephthalate film, and the like are preferably used.
  • the heating / shrinking device 10 includes a tunnel-like cover 12 for forming a heating / shrinking zone provided along the conveyor 2 that transports the bottle container B on which the shrink film S is fitted.
  • the cover 12 is formed of, for example, a metal plate, and is provided so as to cover both sides and the upper side of the conveyor 2 as shown in FIGS. 1 and 2.
  • the heating / shrinking device 10 is supported by a frame-like leg portion 14 and is installed at an appropriate height on the floor in the factory.
  • a plurality of exhaust ducts 16 are provided on the ceiling portion of the cover 12 that constitutes the heat shrinking device 10.
  • the exhaust duct 16 is for exhausting water vapor used inside the heat shrinking apparatus 10 to the outside.
  • the water vapor exhausted from the exhaust duct 16 may be circulated and supplied to a steam generator to be described later.
  • the heating / shrinking device 10 is divided into three zones in which the shrinking method of the shrink film S fitted on the bottle container B is different. Specifically, the partial shrinkage zone Z1 for shrinking a part of the shrink film S fitted on the bottle container B in order from the upstream side in the transport direction of the bottle container B by the conveyor 2 is contracted. It is divided into an overall shrinkage zone Z2 to be made and an additional shrinkage zone Z3 to additionally shrink the shrinkage insufficient portion of the shrink film.
  • the heating / shrinking device 10 includes a steam generating device 18 and a steam heating device 20.
  • the steam generator 18 is for generating first steam to be supplied to the zones Z1 to Z3.
  • the first water vapor of 100 ° C. or less generated by the steam generator 18 is supplied to the partial contraction zone Z1 and the additional contraction zone Z3 through the pipes 22 and 24, and is supplied to the steam heating apparatus 20 through the pipe 26. Is done.
  • the steam heating device 20 is for heating the first steam supplied from the steam generator 18 at normal pressure to generate second steam (or superheated steam) at about 150 ° C. to 180 ° C.
  • the heating means for generating the second water vapor for example, an electromagnetic heating induction type can be used.
  • generated by the steam heating apparatus 20 is supplied to the whole contraction zone Z2 via the piping 28.
  • a plurality of windows 13 are formed on at least one side surface of the cover 12 of the heat shrinking apparatus 10.
  • two windows 13 are provided in each of the zones Z1 to Z3.
  • the window 13 is configured by disposing a transparent plate made of, for example, glass or resin in a substantially rectangular opening formed on the side surface of the cover 12.
  • a pair of handles 30 and a knob 32 are provided on the cover 12 of the heat shrinking device 10, respectively.
  • the handle 30 and the knob 32 are for enabling an operator to adjust the state of spraying water vapor by a nozzle, which will be described later, from the outside of the cover. The details will be described next with reference to FIG. 3 in addition to FIG.
  • FIG. 3 is a front view showing the nozzle pair 34 provided in the partial shrinkage zone Z1 of the heating and shrinking apparatus 10.
  • nozzle pairs 34 as shown in FIG. 2 are arranged along the longitudinal direction of the conveyor 2 on both sides of the conveyor 2, but only one nozzle pair 34 is shown in FIG. 3. Yes.
  • nozzle pairs 34 are installed on both sides of the conveyor 2, respectively.
  • the nozzle pair 34 sprays the first water vapor of 100 ° C. or less supplied from the steam generator 18 through the pipe 22 onto a part of the shrink film S fitted in the bottle container B conveyed by the conveyor 2. It is designed to contract.
  • the nozzle pair 34 has two nozzle members 34a and 34b as shown in FIG.
  • Each nozzle member 34a, 34b is configured by a rectangular metal tube, and nozzle holes 36 are formed in a line on the side surface facing the conveyor 2.
  • the nozzle members 34a and 34b have shrink films S in which the rows of nozzle holes 36 are along the container transport direction by the conveyor 2 and are fitted to the bottle containers B. It is installed in the direction facing the lower end of the.
  • the shape, size, arrangement pitch, and the like of the nozzle holes 36 can be appropriately set according to the heat shrink characteristics of the shrink film S and the like.
  • the side surface in which the nozzle hole 36 is formed is configured as a nozzle plate attached to the nozzle members 34a and 34b with bolts or the like, and by changing the nozzle plate, the spraying amount of the first water vapor is changed. Also good.
  • the nozzle members 34a and 34b are attached to the lower end of a bracket 38 having a substantially L-shaped front shape by bolting.
  • the mounting holes 40 of the nozzle members 34a and 34b formed in the bracket 38 are formed as long holes having a substantially arc shape.
  • the bolt can be moved in the mounting hole 40 with the bolt loosened.
  • the nozzle members 34a and 34b can be rotated with respect to the bracket 38 to individually adjust the angle. ing.
  • the upper part of the bracket 38 to which the nozzle members 34a and 34b are attached extends elongated upward, and a rack 42 is formed on one side edge thereof.
  • a pinion gear 44 is engaged with the rack 42.
  • the pinion gear 44 is fixed to a shaft member 46 that is connected to a handle 30 provided outside the cover 12 and is rotatably supported in the heating / shrinking device 10. .
  • a support frame 50 is erected on the leg portion 14 inside the heat shrinking apparatus 10, and a support plate 52 extends in a direction perpendicular to the container conveying direction by the conveyor 2 on the support frame 50. It is attached to exist.
  • An upper portion of a substantially T-shaped nozzle holding plate 54 is attached to the support plate 52 with bolts 55.
  • a lower portion 56 of the support plate 52 extends downwardly, and a bracket 38 to which the nozzle members 34a and 34b are attached is provided on the lower portion 56 so that the bracket 38 can move while being guided upward. Yes.
  • the upper part of the nozzle holding plate 54 is mounted on the support plate 52 so as to be slidable by bolts 55.
  • the two nozzle holding plates 54 that respectively hold the nozzle pairs 34 installed on both sides of the conveyor 2 are connected to a support plate 52 by a link mechanism 58 that is rotatably supported.
  • the end of the knob 32 extending from the outside of the cover 12 to the inside of the heat shrinking apparatus 10 is connected to the upper end edge of the nozzle holding plate 54 on the front side of the conveyor 2.
  • the two nozzle holding plates 54 move in a direction approaching each other via the link mechanism 58, and when the knob is pulled, The nozzle holding plate 54 moves away from each other.
  • the distance D between the nozzle members 34a and 34b and the shrink film S fitted to the bottle container B can be adjusted from the outside of the cover 12. This can be said that the first water vapor sprayed from the nozzle members 34a and 34b spreads away from the nozzle members 34a and 34b, so that the spray width of the first water vapor on the shrink film S can be adjusted.
  • FIG. 4 is a front view showing the nozzle pair 34 provided in the entire contraction zone Z2.
  • the angle adjustment mechanism, the height adjustment mechanism, and the spray width adjustment mechanism of the nozzle pair 34 in the entire contraction zone Z2 are the same as those in the partial contraction zone Z1, and thus the description thereof is omitted.
  • the difference here is that the nozzle holes of the nozzle member are formed in several rows and that the second water vapor is sprayed onto the shrink film S, so only these will be described.
  • the nozzle pair 34 in the entire contraction zone Z2 includes two nozzle members 34c and 34d.
  • a row of nozzle holes 36 is provided in, for example, 4-6 rows in the vertical direction.
  • the two nozzle members 34c and 34d are set so as to be aligned in a straight line at a predetermined angle with respect to the conveyor 2, respectively. More specifically, the superheated steam is sprayed from the bottom to the top on the shrink film S around the bottle container B conveyed by the conveyor 2 so that the shrink film S is thermally shrunk to be in close contact with the bottle container B. I try to wear it in the state that I did
  • FIG. 5 is a front view showing the nozzle pair 34 provided in the additional shrinkage zone of the heat shrinking apparatus 10. Since the configuration of the additional contraction zone Z3 is the same as that of the partial contraction zone Z1 including the configuration of the nozzle members 34a and 34b and the use of the first water vapor, the description thereof is not repeated here.
  • the two nozzle members 34 a and 34 b included in the nozzle pair 34 are respectively installed in parallel to the container transport direction by the conveyor 2 at different height positions.
  • the additional shrinkage zone Z3 is a region for additionally shrinking the shrinkage insufficient portion of the shrink film S. Therefore, in FIG. 5, the nozzle member 34 a located on the upstream side in the container transport direction (arrow E direction) of the two nozzle members 34 a and 34 b is the middle in the vertical direction of the shrink film S fitted on the bolt container B.
  • An example is shown in which the nozzle hole 36 is set at a height position so that the first water vapor is ejected toward the position.
  • the nozzle member 34b located on the downstream side sprays the first water vapor on the upper end portion of the shrink film S, and the portion of the shrink film S that is steeply inclined from the body portion of the bottle container B toward the mouth portion.
  • An example of contraction so that the upper end portion is in close contact is shown.
  • FIGS. 6A to 6E are diagrams showing, in a stepwise manner, a state in which the shrink film S attached to the bottle container B which is, for example, a PET bottle is attached by being thermally contracted.
  • the bottle container B fitted with the unshrinked shrink film S is first carried into the partial shrinkage zone Z1 of the heating shrinkage device 10 by the conveyor 2.
  • the first water vapor ejected from the nozzle holes 36 of the nozzle members 34a and 34b is sprayed onto the lower end portion of the shrink film S located on the outer periphery of the lower end portion of the bottle container B.
  • the lower end part of the shrink film S heat-shrinks and contacts the outer peripheral surface of the bottle container B, and is fixed.
  • the position of the shrink film S in the axial direction with respect to the bottle container B is determined.
  • the downstream nozzle member 34b of the two nozzle members 34a and 34b is used as the stepped portion. You may set to the corresponding height position. By doing in this way, the part corresponding to the rib of the shrink film S can be made into the state contracted a little. As a result, if the shrink film S is heat-shrinked at a stroke by superheated steam, the shrink film S is excessively engulfed, and the design and characters printed on the film may be greatly distorted. The state of biting of the film can be relaxed by heat shrinking in two stages, zone Z1 and the next overall shrinkage zone Z2.
  • the bottle container B is conveyed by the conveyor 2 and passes through the entire shrinkage zone Z2.
  • the second water vapor ejected from the nozzle holes 36 of the nozzle members 34c, 34d is entirely sprayed in order from the bottom to the top onto the shrink film S fitted in the bottle container B.
  • the shrink film S is thermally contracted as a whole from the lower end side to the upper end side in close contact with the outer peripheral surface of the bottle container B to form the bottle container B. Will be installed.
  • the shrink film S can be instantaneously contracted with a large contraction rate, and the first water vapor contracts. Water drops do not adhere to the shrink film S and the bottle container B as in the case of making them.
  • the bottle container B in which the entire shrink film S is thermally contracted in the entire contraction zone Z2 is conveyed by the conveyor 2 and passes through the additional contraction zone Z3 which is the last zone.
  • the additional shrinkage zone Z3 the first water vapor ejected from the nozzle holes 36 of the nozzle members 34a and 34b is sprayed toward a portion where shrinkage is insufficient in the shrink film S after passing through the entire shrinkage zone Z2.
  • the second shrinkage zone Z3 is directed toward the middle portion in the height direction of the shrink film S. 1 water vapor may be sprayed and additionally heat-shrinked so as to be in close contact with the bottle container B.
  • the bottle container B on which the shrink film S is mounted after passing through the three zones Z1 to Z3 of the heating and shrinking apparatus 10 is carried out of the heating and shrinking apparatus 10 by the conveyor 2 and is transferred to a subsequent process such as boxing. It is conveyed.
  • the heat shrink due to the relatively low temperature first steam and the relatively high temperature according to the shape of the bottle container B to which the shrink film S is attached A suitable wearing state of the shrink film S can be realized by using in combination with heat shrinkage by the second water vapor.
  • the shrink film S fitted in the bottle container B the lower end portion is thermally contracted using the first water vapor and positioned and fixed, and the whole is quickly contracted using the second water vapor and the mounted state.
  • the shrinkage film S can be mounted in a beautiful state by using the first water vapor to perform additional shrinkage so as to compensate for the shrinkage insufficient portion.
  • the operator can shrink the shrink film S through the window 13 as compared with the case of the first water vapor that is in a poor visibility state due to steam.
  • the contraction state of can be clearly confirmed. Therefore, the shrinkage state of the shrink film S is easily adjusted by operating at least one of the handle 30 and the knob 32 so that the first water vapor is sprayed in the additional shrinkage zone Z3 toward the shrinkage insufficient portion of the shrink film S. Can do.
  • the shrink film S is contracted from the bottom to the top in the entire contraction zone Z2 of the heat contraction apparatus 10, but the nozzle members 34c and 34d are inclined in the opposite direction (that is, downstream in the container transport direction).
  • the shrink film S may be contracted from the top to the bottom.
  • it is preferable that the upper end portion of the shrink film S is thermally contracted and positioned and fixed.
  • FIG. 7 is a front view schematically showing the entire shrink film heating / shrinking apparatus 10A according to the second embodiment.
  • FIGS. 8A to 8E are diagrams showing in stages the state in which the shrink film is heat-shrinked and attached to the beer bottle-type container B in the heating and shrinking apparatus 10A.
  • the heating / shrinking apparatus 10A of the present embodiment has a configuration that is substantially the same as that of the first embodiment, and therefore, the same components are denoted by the same reference numerals and will not be described repeatedly, but mainly the differences will be described.
  • the second steam is supplied from the steam heating apparatus 20 to the additional contraction zone Z3 via the pipe 28 and ejected from the nozzle members 34a and 34b. It has become.
  • the article on which the shrink film S is fitted in the heating / shrinking apparatus 10A of the present embodiment is a beer bottle type bottle container B, specifically, a shape having a large difference in diameter between the trunk and the vicinity of the mouth. The container.
  • the bottle container B fitted with the unshrinked shrink film S is first carried into the partial shrinkage zone Z1 of the heating shrinkage device 10A by the conveyor 2.
  • the 1st water vapor spouted from nozzle hole 36 of nozzle members 34a and 34b is sprayed on the lower end part of shrink film S located in the perimeter of the lower end part of bottle container B.
  • the lower end part of the shrink film S heat-shrinks, contacts the outer peripheral surface of the bottle container B, and is fixed.
  • the position of the shrink film S in the axial direction with respect to the bottle container B is determined.
  • the bottle container B is conveyed by the conveyor 2 and passes through the entire shrinkage zone Z2.
  • the second water vapor ejected from the nozzle holes 36 of the nozzle members 34c, 34d is entirely sprayed in order from the bottom to the top onto the shrink film S fitted in the bottle container B.
  • the shrink film S is heat-shrinked in order from the lower end side to the upper end side, and is closely attached to the outer peripheral surface of the bottle container B. become.
  • the bottle container B in which the entire shrink film S is thermally contracted in the entire contraction zone Z2 is conveyed by the conveyor 2 and passes through the additional contraction zone Z3 which is the last zone.
  • the additional shrinkage zone Z3 the second water vapor ejected from the nozzle holes 36 of the nozzle members 34a and 34b is sprayed toward a portion where the shrinkage is insufficient in the shrink film S after passing through the entire shrinkage zone Z2.
  • the upper end S ⁇ b> 2 of the shrink film S which corresponds to the portion from the shoulder to the neck where the diameter difference of the bottle container B increases, has a close contact degree with the bottle container B.
  • An example is insufficient.
  • the second water vapor is sprayed toward the upper end portion of the shrink film S to be additionally firmly heat-shrinked so that the outer peripheral surface of the bottle container B is sufficiently adhered. be able to.
  • steam of comparatively low temperature according to the shape of the bottle container B with which the shrink film S is mounted
  • a suitable mounting state of the shrink film S can be realized by using the combination of the shrinkage and the heat shrinkage by the relatively high temperature second steam.
  • the shrink film S fitted in the bottle container B the lower end portion is thermally contracted using the first water vapor and positioned and fixed, and the whole is quickly contracted using the second water vapor and the mounted state.
  • the shrinkage film S can be mounted in a beautiful state by using the second water vapor to perform additional shrinkage so as to compensate for the shrinkage insufficient portion.
  • the shrink film S can be positioned by appropriate shrinkage.
  • the operator can shrink the shrink film S through the window 13 as compared with the case of the first water vapor that is in a poor visibility state due to steam.
  • the contraction state of can be clearly confirmed. Therefore, the shrinkage state of the shrink film S is easily adjusted by operating at least one of the handle 30 and the knob 32 so that the second water vapor is sprayed in the additional shrinkage zone Z3 toward the shrinkage insufficient portion of the shrink film S. Can do.
  • FIG. 9 is a front view schematically showing the entirety of the heating and shrinking apparatus 10B of the third embodiment.
  • FIGS. 10A to 10D are diagrams showing the state in which the shrink film is heat-shrinked and attached to the cup container C in the heating and shrinking apparatus 10B in a stepwise manner.
  • the heating / shrinking apparatus 10B of the present embodiment has substantially the same configuration as that of the first embodiment, and therefore, the same components will be described using the same reference numerals and will not be described repeatedly, but mainly the differences will be described.
  • the second steam is supplied from the steam heating apparatus 20 via the pipe 28 in the partial contraction zone Z1 and ejected from the nozzle members 34a, 34b. It has become. Further, in the entire contraction zone Z2, the first water vapor is supplied from the steam generator 18 via the pipe 25 and is ejected from the nozzle members 34c and 34d. Note that the first water vapor is used in the additional contraction zone Z3 as in the case of the first embodiment.
  • the cup container C is fitted on the jig 4 conveyed by the conveyor 2 with the bottom portion facing up.
  • the cylindrical shrink film S is fitted around the side surface of the cup container C held by the jig 4, and is carried into the heating and shrinking device 10 ⁇ / b> B by the conveyor 2.
  • the cup container C is a resin container for containing food such as yogurt, for example, and a heat-sensitive adhesive layer is provided on the inner surface of the end of the shrink film S to be fitted on the container opening side. It is provided in advance.
  • the cup container C fitted with the unshrinked shrink film S is first carried into the partial shrinkage zone Z1 of the heating shrinkage device 10B by the conveyor 2.
  • the second water vapor ejected from the nozzle holes 36 of the nozzle members 34a, 34b is sprayed to the lower end portion of the shrink film S located on the outer periphery of the lower end portion of the bottle container B.
  • the lower end portion of the shrink film S is thermally contracted as a result of the second water vapor having a high heat capacity at a high temperature, and the film shown as a stipple region in FIG.
  • the inner heat-sensitive adhesive layer is activated and develops tackiness. Thereby, the lower end part of the shrink film S is adhered and fixed to the container side face at a position adjacent to the flange part of the cup container C.
  • the shrink film S can be mounted at a desired position without being displaced in the axial direction.
  • the side surface of the cup container C facing the lower end of the shrink film S is flat and has no recess, there is no problem of excessive film biting into the recess or the like even if it is thermally contracted with high-temperature second steam. .
  • the cup container C is conveyed by the conveyor 2 and passes through the entire contraction zone Z2.
  • the first water vapor ejected from the nozzle holes 36 of the nozzle members 34c and 34d is entirely sprayed in order from the bottom to the top onto the shrink film S fitted in the cup container C.
  • the shrink film S is attached in close contact with the outer peripheral surface of the cup container C by being thermally contracted in order from the lower end side to the upper end side, as shown in FIGS. become.
  • the cup container C in which the entire shrink film S is thermally contracted in the entire contraction zone Z2 is conveyed by the conveyor 2 and passes through the additional contraction zone Z3 which is the last zone.
  • the additional shrinkage zone Z3 the first water vapor ejected from the nozzle holes 36 of the nozzle members 34a and 34b is sprayed toward a portion where shrinkage is insufficient in the shrink film S after passing through the entire shrinkage zone Z2.
  • the additional shrinkage zone Z3 is set such that the upper end S2 of the shrink film S corresponding to the portion from the side surface to the bottom surface of the cup container C is bent and adhered. Then, it is preferable to heat-shrink additionally by spraying 1st water vapor
  • the relatively low temperature of the second shrinkage device 10B according to the shape of the cup container C on which the shrink film S is mounted.
  • the shrink film S fitted in the cup container C is heat-shrinked and bonded and fixed by using the second steam, and the entire film is shrunk and attached using the first steam. It is possible to finely finish the mounted state of the shrink film S by making the state and finally performing additional shrinkage using the first water vapor so as to compensate for the shrinkage insufficient portion.
  • the thermal shrinkage and the activation of the heat-sensitive adhesive layer can be caused at the lower end portion of the shrink film S to be positioned.
  • contraction apparatus of the shrink film which concerns on this invention is not limited to the structure of the 1st thru
  • a drying zone using a hot air heater or the like may be provided in the downstream side. If it does in this way, the container with which the shrink film was mounted
  • the additional shrinking zone Z3 may be omitted if the shrink film S can be sufficiently shrunk by heating in the entire shrinking zone Z2. In such a case, there is an advantage that the installation space for the heat shrinking device is reduced and the amount of water vapor to be used can be reduced to save energy.
  • the first water vapor or the second water vapor is sprayed to additionally shrink the shrink film S.
  • the invention is not limited thereto, and the nozzle member 34a is not limited thereto. , 34b, hot air that is high-temperature air may be ejected and sprayed onto the shrinkage-insufficient portion of the shrink film.
  • both the height position and the spray width of the nozzle member can be adjusted from the outside of the cover, but the present invention is not limited to this, and at least one of the nozzle members is adjustable. Also good.
  • the two nozzle members 34a, 34b or 34c, 34d of the nozzle pair 34 provided in each of the zones Z1 to Z3 are configured so that the height position and angle can be individually adjusted.
  • the present invention is not limited to this, and at least one of them may be individually adjustable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Le problème décrit par la présente invention concerne l'ajustement idéal d'un film rétractable en utilisant une combinaison de thermorétraction avec une première vapeur possédant une température relativement basse et une thermorétraction avec une seconde vapeur possédant une température relativement élevée selon la forme de l'article sur lequel le film rétractable doit être ajusté. La solution selon l'invention consiste en un dispositif de thermorétraction de film rétractable (10) pour ajuster un film rétractable (S) autour d'un article (B) par rétraction du film au moyen de chaleur. Le dispositif comporte une zone de retrait partiel (Z1) pour la rétraction d'une partie du film rétractable et une zone de retrait global (Z2) pour la rétraction de la majorité du film rétractable dans son intégralité. Dans la zone de retrait partiel (Z1), le film rétractable est fixé à l'article par pulvérisation d'une première vapeur possédant une température relativement basse sur le film rétractable pour rétracter partiellement le film. Dans la zone de retrait global (Z2), le film rétractable est ajusté sur l'article par pulvérisation d'une seconde vapeur possédant une température zone relativement élevée sur le film rétractable pour rétracter le film dans son ensemble.
PCT/JP2014/058057 2013-06-28 2014-03-24 Dispositif de thermorétraction de film rétractable WO2014208155A1 (fr)

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JP2015523891A JP6405571B2 (ja) 2013-06-28 2014-03-24 シュリンクフィルム付き容器の製造方法

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JP2013-137121 2013-06-28
JP2013137121 2013-06-28

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Cited By (8)

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CN108216778A (zh) * 2017-12-29 2018-06-29 广州丽盈塑料有限公司 一种食品包装塑料瓶套标蒸汽收缩机
CN108313406A (zh) * 2017-12-29 2018-07-24 广州丽盈塑料有限公司 一种塑料包装瓶套标蒸汽收缩自动生产线
DE102018107551A1 (de) * 2018-03-29 2019-10-02 Krones Aktiengesellschaft Behälterbehandlungsstation und Verfahren zur Behandlung und/oder zur Temperierung von Behältern
JP2021004091A (ja) * 2019-06-26 2021-01-14 フジヤマパックシステム株式会社 ラベル加熱装置
WO2021109543A1 (fr) * 2019-12-02 2021-06-10 浙江李子园食品股份有限公司 Four de rétraction d'étiquette
CN113365920A (zh) * 2019-01-31 2021-09-07 株式会社吉野工业所 装有内容液的瓶体的制造方法
CN114291319A (zh) * 2021-12-30 2022-04-08 昆山新宏赫包装机械有限公司 一种适用于水桶桶口封膜的蒸汽缩膜装置
EP3831730A4 (fr) * 2018-08-06 2022-04-27 Fuji Seal International, Inc. Appareil et procédé de traitement thermique d'un film thermorétractable

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KR102244854B1 (ko) * 2020-08-13 2021-04-27 주식회사 세원전자 열수축 튜브에 대한 차별적 가열이 가능한 가열장치

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JPH07187148A (ja) * 1993-12-22 1995-07-25 Fuji Seal Co Ltd ラベルの収縮方法及びその装置
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Publication number Priority date Publication date Assignee Title
CN108216778A (zh) * 2017-12-29 2018-06-29 广州丽盈塑料有限公司 一种食品包装塑料瓶套标蒸汽收缩机
CN108313406A (zh) * 2017-12-29 2018-07-24 广州丽盈塑料有限公司 一种塑料包装瓶套标蒸汽收缩自动生产线
DE102018107551A1 (de) * 2018-03-29 2019-10-02 Krones Aktiengesellschaft Behälterbehandlungsstation und Verfahren zur Behandlung und/oder zur Temperierung von Behältern
EP3546381A1 (fr) * 2018-03-29 2019-10-02 KRONES Aktiengesellschaft Station de traitement de récipents et procédé de traitement et/ou thermorégulation de récipients
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EP3831730A4 (fr) * 2018-08-06 2022-04-27 Fuji Seal International, Inc. Appareil et procédé de traitement thermique d'un film thermorétractable
CN113365920A (zh) * 2019-01-31 2021-09-07 株式会社吉野工业所 装有内容液的瓶体的制造方法
EP3919396A4 (fr) * 2019-01-31 2022-11-02 Yoshino Kogyosho Co., Ltd. Procédé de fabrication de bouteille contenant un liquide de contenu
CN113365920B (zh) * 2019-01-31 2022-12-13 株式会社吉野工业所 装有内容液的瓶体的制造方法
JP2021004091A (ja) * 2019-06-26 2021-01-14 フジヤマパックシステム株式会社 ラベル加熱装置
WO2021109543A1 (fr) * 2019-12-02 2021-06-10 浙江李子园食品股份有限公司 Four de rétraction d'étiquette
CN114291319A (zh) * 2021-12-30 2022-04-08 昆山新宏赫包装机械有限公司 一种适用于水桶桶口封膜的蒸汽缩膜装置
CN114291319B (zh) * 2021-12-30 2023-03-14 昆山新宏赫包装机械有限公司 一种适用于水桶桶口封膜的蒸汽缩膜装置

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