US20040206048A1 - Apparatus for sealing containers - Google Patents
Apparatus for sealing containers Download PDFInfo
- Publication number
- US20040206048A1 US20040206048A1 US10/709,095 US70909504A US2004206048A1 US 20040206048 A1 US20040206048 A1 US 20040206048A1 US 70909504 A US70909504 A US 70909504A US 2004206048 A1 US2004206048 A1 US 2004206048A1
- Authority
- US
- United States
- Prior art keywords
- sealing
- container
- recesses
- lid
- body wall
- 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.)
- Abandoned
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
- B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
- B29C65/7451—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool the severing tool and the welding tool being movable with respect to one-another
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
- B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
- B29C65/7461—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool for making welds and cuts of other than simple rectilinear form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
- B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
- B29C66/2422—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical
- B29C66/24221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical being circular
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/343—Making tension-free or wrinkle-free joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
- B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
- B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/61—Joining from or joining on the inside
- B29C66/612—Making circumferential joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/824—Actuating mechanisms
- B29C66/8242—Pneumatic or hydraulic drives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/849—Packaging machines
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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
- B65B7/00—Closing containers or receptacles after filling
- B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
- B65B7/162—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by feeding web material to securing means
- B65B7/164—Securing by heat-sealing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
- B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
Definitions
- the present invention relates to apparatus for sealing the openings of cuplike containers with a strip of lid material, for example, with dessert or the like contained therein.
- the conventional apparatus of the type mentioned and already known comprise a sealing head for sealing the peripheral edge portion of a lid to the inner surface of downwardly tapered body wall of a container.
- the sealing head has a seal holding surface fittable to the body wall inner surface of the container, and the entire seal holding surface is a smooth surface having no indentations or projections (see, for example, the publication of JP-A No. 2002-255103).
- a slack is inevitably produced in the peripheral edge portion of the lid at the time of sealing. If the slack is held by the seal holding surface of the sealing head, the slack fails to escape, forming wrinkles.
- the wrinkles are sealed as folded.
- the sealed wrinkles are not uniform but differ in size and location of occurrence circumferentially of the sealed portion of the container. At the location where a great crease occurs or many wrinkles are produced, sufficient sealing pressure is not available to produce a faulty seal. On the other hand, uneven wrinkles affect the aesthetic appearance of the sealed portion.
- An object of the present invention is to provide an apparatus for sealing containers to give an improved aesthetic appearance to the sealed portions while eliminating faulty seals.
- the present invention provides an apparatus for sealing containers which comprises a sealing head for sealing a peripheral edge portion of a lid to an inner surface of a downwardly tapered body wall of the container, the sealing head being provided with a seal holding face fittable to the body wall inner surface, the apparatus being characterized in that recesses are formed respectively in a plurality of portions of the seal holding face along the circumference thereof for guiding slack produced in the lid peripheral edge portion at the time of sealing.
- the container sealing apparatus of the present invention With the container sealing apparatus of the present invention, the slack produced in the peripheral edge portion of the lid is guided to the recesses, and the wrinkles due to the slack are formed at the predetermined parts of the sealed portion.
- the conventional container sealing apparatus of the type described tend to produce higher pressure inside the container than outside the container, whereas we have found that the presence of recesses is less likely to produce positive pressure inside the sealed container. If the container has internal positive pressure, the air inside the container will act to escape from the container through a portion of relatively weak seal joint between the container and the lid, creating a pinhole in this portion to result in a faulty seal. The reason why the interior of the container is less likely to have positive pressure appears attributable to the recesses which provide vent channels through which air is released from between the container body wall and the lid peripheral edge portion.
- the present invention therefore precludes faulty seals due to uneven wrinkling and also obviates faulty seals due to the internal pressure of sealed containers.
- the seal holding face has an upper region and a lower region, and when the recesses are positioned in the lower region, the slack is guided by the lower region, permitting the upper region to produce a reliable seal.
- the recesses are open downward at their lower ends, wrinkles are guided by the recesses extending to the lower end of the seal holding face initially when the lid is progressively bent, and therefore easily guided by the recesses. Accordingly, the wrinkles can be formed suitably. Moreover, air can be removed efficiently through the vent channels provided by the recesses, whereby faulty seals can be precluded more effectively.
- the recesses are each in the form of a groove extending vertically and are arranged at a constant spacing, wrinkles can be formed uniformly, consequently giving an improved aesthetic appearance to the sealed portion.
- the recesses have a width approximately equal to the spacing between the adjacent recesses, this contributes to a further improvement in the aesthetic appearance.
- the container sealing apparatus further comprises a holder for holding the container.
- the holder has a container inserting bore, and an inner peripheral surface of the holder defining the bore has an upper end portion providing a seal bearing face corresponding to the seal holding face.
- the seal bearing face has a diameter which is constant over the entire length thereof and equal to the outside diameter of the upper end of the container body wall. The wedge action of the seal holding face and the seal bearing face then produces an improved sealing effect.
- FIG. 1 is a vertical cross sectional view of a sealing apparatus of the invention
- FIG. 2 is a view in horizontal section taken along the line II-II in FIG. 1;
- FIG. 3 is an enlarged view in section showing a sealing head and the vicinity thereof;
- FIG. 4 is a view for illustrating the sealing head in detail
- FIG. 5 includes views for illustrating a sealing operation by the apparatus
- FIG. 6 includes views subsequent to the views of FIG. 5 for illustrating the sealing operation
- FIG. 7 is a view for illustrating a seal produced
- FIG. 8 is a perspective view of a container as sealed by the apparatus.
- FIG. 8 shows a container C and a lid L which are produced by the container sealing apparatus of the present invention.
- the container C is in the form of a circular cup of paper and has a downwardly tapered body wall B.
- the container C has a curl portion K at a brim defining an upper-end opening of the body wall B.
- the lid L is produced by blanking a lid material F of thermoplastic film, and is allowed to fall into the upper-end opening of the body wall B to form an upstanding rim R.
- the outer peripheral surface of the rim R is heat-sealed to the inner peripheral surface of the upper end of the body wall B.
- the upstanding rim R has a multiplicity of inwardly projecting vertical wrinkles M formed in a lower region thereof and arranged at a spacing.
- a tab T is provided integrally with a portion of outer periphery of the rim R.
- the container sealing apparatus comprises a horizontal turntable 12 provided with a plurality of container holders 11 (only one shown) equidistantly spaced apart on a circumference at a predetermined distance from the center O of rotation, and intermittently drivable so as to stop the container holders 11 one after another at a sealing station S, a lid material transport device 13 for supplying the strip of lid material F to the sealing station S so as to position the lid material F across and above the container holder 11 as stopped at the station S, a vertically movable assembly 14 disposed at the sealing station S above the turntable 12 , a vertical tubular cutter 15 depending from and attached to the assembly 14 for blanking out a lid L from the strip of lid material F along the container brim so as to separate the lid L from the remaining portion of the lid material F, a sealing head 16 disposed inside the cutter 15 for sealing a peripheral edge portion of the blanked lid L to the inner surface of the container brim portion, and a lid material
- the container holder 11 is in the form of a horizontal rectangular plate having a circular container holding bore 21 vertically extending therethrough. As shown in greater detail in FIG. 3, the container holding bore 21 has a diameter which is constant over the entire length thereof and equal to the outside diameter of upper end of the body wall B.
- the inner peripheral surface of the container holder 11 defining the container holding bore 21 has a seal bearing face 22 at its upper end portion.
- the holder 11 has a container bearing face 24 at the upper-end opening edge portion of the seal bearing face 22 and an annular cutter escape groove 23 surrounding the container bearing face 24 . Although annular in its entirety, the escape groove 23 has a bulging portion 23 a at a portion thereof corresponding to the tab T.
- the container holder 11 has at its top a lid material bearing face 25 externally of the groove 23 .
- the lid material bearing face 25 is at a higher level than the container bearing face 24 .
- the body wall B is fitted into the container holding bore 21 with the curl portion K received by the container bearing face 24 , whereby the container C is held by the holder 11 .
- the vertically movable assembly 14 comprises a horizontal top plate 33 movable upward and downward by a first fluid pressure cylinder 32 facing vertically downward and attached to a support member 31 , a horizontal bottom plate 34 disposed below the top plate 33 at a distance therefrom, first spacers 35 in the form of vertical rods and arranged between the top plate 33 and the bottom plate 34 at outer peripheral edge portions thereof, and a second fluid pressure cylinder 36 connected to the piston rod of the first fluid pressure cylinder 32 , mounted on the upper side of the top plate 33 centrally thereof and facing vertically downward.
- First guide rods 41 extending vertically downward are attached to the first cylinder 32 .
- the first guide rods 41 slidably extend through the top plate 33 in the vicinity of the first spacers 35 .
- the top plate 33 has a rod hole 42 centrally thereof with the piston rod of the second cylinder 36 inserted through the hole.
- a head hole 43 is formed in the bottom plate 34 centrally thereof.
- the bottom plate 34 has a container holding member 52 in the form of a vertical sleeve and extending downward from the inner periphery thereof defining the head hole 43 .
- a horizontal head mount disk 44 is connected to the piston rod of the second cylinder 36 .
- Second guide rods 45 are provided upright on the upper side of the head mount disk 44 at peripheral edge portions thereof. The second guide rods 45 slidably extend through the top plate 33 to a position thereabove, between the second cylinder 36 and the respective first guide rods 41 .
- a stopper 46 is provided at the upwardly projecting end of each second guide rod 45 .
- a second spacer 47 provided around the upward projection of the rod 45 is interposed between the top plate 33 and the stopper 46 .
- the cutter 15 is fixedly suspended from the lower side of the bottom plate 34 so as to surround the container holding member 52 and has a blade 51 positioned precisely above the cutter escape groove 23 .
- the sealing head 16 comprises a vertical tubular heater 61 attached to the lower side of the head mount disk 44 to depend therefrom and having a lower end portion extending through the head hole 43 , and an annular sealing member 62 attached to the lower end of the heater 61 and to be heated by the heater 61 .
- the sealing member 62 is provided along the outer periphery of its bottom with a downwardly projecting annular portion 71 .
- the outer periphery of the sealing member 62 including the annular portion 71 has a downwardly tapered seal holding face 72 fittable to the inner surface of the container body wall B.
- a suspension rod 73 extends downward from the center of lower side of the head mount disk 44 axially of the sealing head 16 .
- the suspension rod 73 is provided at its lower end with a lid suction member 74 in the form of a horizontal disk.
- the lid suction member 74 has an outer peripheral portion positioned inwardly of the annular portion 71 .
- the suction member 74 has a bottom surface slightly projecting downward beyond the lower face of the annular portion 71 .
- the head mount disk 44 has a lateral suction channel 75 extending from its outer periphery toward the center and having a bottom.
- a vertical suction channel 76 extends downward through the axis of the suspension rod 73 from the bottom of the channel 75 .
- the vertical suction channel 76 has a lower-end opening formed in the bottom surface of the lid suction member 74 .
- the lid material holder 17 is in the form of a horizontal plate having the same shape as the lid material bearing face 25 when seen from above.
- the lower surface of the lid material holder 17 is entirely covered with an elastic material 81 .
- Third guide rods 82 are provided upright on the upper side of the holder 17 at a plurality of locations, respectively.
- the third guide rods 82 have upper ends slidably extending through the bottom plate 34 and each having a stopper 83 .
- a second compression coil spring 84 provided around each third guide rod 82 is interposed between the bottom plate 34 and the lid material holder 17 .
- the outer peripheral surface of the sealing member 62 has a straight cylindrical face above the seal holding face 72 .
- the seal holding face 72 has an upper region 91 and a lower region 92 which have a boundary therebetween at an intermediate portion of the height of the holding face 72 .
- the upper region 91 is smooth-surfaced over the entire circumference thereof, while the lower region 92 has a multiplicity of recesses 93 equidistantly spaced apart circumferentially thereof.
- Each of the recesses 93 resembles a vertically extending groove in shape and has a lower end which is open downward.
- the recesses 93 have a width W 1 which is approximately equal to the spacing W 2 between the adjacent recesses 93 .
- each recess 93 is suitably variable over the range of about 4 to about 360, preferably over the range of 10 to 120.
- the bottom of each recess 93 has a circular-arc contour in cross section.
- the recess 93 has a depth which is preferably at least 1 ⁇ 4 of the width W 1 thereof.
- the vertically movable assembly 14 is moved upward or downward by the operation of the first fluid pressure cylinder 32 , and the sealing head 16 is moved upward or downward relative to the assembly 14 by the operation of the second fluid pressure cylinder 36 .
- the lower surface of the lid material holder 17 and that of the lid suction member 74 are generally at the same level when the vertically movable assembly 14 is positioned at the upper limit of its vertical stroke, with the sealing head 16 positioned at the upper limit of its vertical stroke.
- the blade 51 of the cutter 15 is positioned at a level higher than this level.
- FIG. 5( a ) shows the apparatus in the same state as in FIG. 1.
- the vertically movable assembly 14 is lowered to a position where the lid material holder 17 and the lid suction member 74 are brought into contact with the lid material F as shown in FIG. 5( b ).
- the assembly 14 is further lowered to its lower limit position, causing the cutter 15 to blank out a lid L from the lid material F in the meantime as shown in FIG. 6( d ).
- the force of the second compression coil springs 84 acts on the lid material F externally of the cutter 15 and the weight of the sealing head 16 , etc. acts on the material F internally of the cutter 15 . This prevents the shift of the portion to be blanked out, assuring the cutter 15 of improved cutting performance.
- the lid L blanked out is attracted by the lid suction member 74 .
- the seal holding face 72 is tapered downward, while the seal bearing face 22 is vertical. Accordingly, the heat-sealing operation produces a sealing pressure gradually decreasing from above downward between the seal holding face 72 and the seal bearing face 22 instead of producing a uniform sealing pressure between the two faces 72 , 22 . This ensures an improved sealing effect since the seal joint is given an increased strength where it is subjected to greater sealing pressure.
- the portion to be sealed by the upper region 91 of the sealing member 62 is uniformly sealed over the entire circumference, whereas the portion to be sealed by the lower region 92 is sealed only at parts pressed by the parts of the region 92 other than the recesses 93 .
- the slack parts of the lid peripheral portion which are produced at this time make wrinkles M in the recesses 93 as shown in FIG. 7, and the wrinkles M remain unsealed.
- the sealing head 16 is thereafter raised along with the vertically movable assembly 14 .
- the sealing head 16 is raised first as shown in FIG. 6( f ). Even if the sealing head 16 acts to lift the container C as attached thereto at this time, the container C is restrained by the container holding member 52 .
- the assembly 14 is thereafter raised.
- containers are transported by the turntable according to the foregoing embodiment, containers may be transported by a conveyor.
- the recesses are formed only in the lower region, whereas such recesses may be formed otherwise.
- the recesses may be formed in one or both of the upper region and the lower region or across the two regions.
- the recessed are provided preferably only in the lower region when the air release function, shape of wrinkles, sealing effect and aesthetic appearance of the product are considered collectively.
- the invention eliminates faulty seals and gives an improved aesthetic appearance to the sealed portion.
Abstract
The invention provides an apparatus for sealing containers which comprises a sealing head 16 for sealing a peripheral edge portion of a lid L to the inner surface of a downwardly tapered body wall B of the container C. The sealing head 16 is provided with a seal holding face 72 fittable to the inner surface of the container body wall B. The seal holding face 72 has an upper region 91 and a lower region 92. Recesses 93 are formed respectively in a plurality of portions of the lower region 92 along the circumference thereof for absorbing the slack produced in the peripheral edge portion of the lid L at the time of sealing. The apparatus obviates faulty seals in containers and gives an improved aesthetic appearance to the sealed portion.
Description
- The present invention relates to apparatus for sealing the openings of cuplike containers with a strip of lid material, for example, with dessert or the like contained therein.
- The conventional apparatus of the type mentioned and already known comprise a sealing head for sealing the peripheral edge portion of a lid to the inner surface of downwardly tapered body wall of a container. The sealing head has a seal holding surface fittable to the body wall inner surface of the container, and the entire seal holding surface is a smooth surface having no indentations or projections (see, for example, the publication of JP-A No. 2002-255103).
- A slack is inevitably produced in the peripheral edge portion of the lid at the time of sealing. If the slack is held by the seal holding surface of the sealing head, the slack fails to escape, forming wrinkles. The wrinkles are sealed as folded. The sealed wrinkles are not uniform but differ in size and location of occurrence circumferentially of the sealed portion of the container. At the location where a great crease occurs or many wrinkles are produced, sufficient sealing pressure is not available to produce a faulty seal. On the other hand, uneven wrinkles affect the aesthetic appearance of the sealed portion.
- An object of the present invention is to provide an apparatus for sealing containers to give an improved aesthetic appearance to the sealed portions while eliminating faulty seals.
- The present invention provides an apparatus for sealing containers which comprises a sealing head for sealing a peripheral edge portion of a lid to an inner surface of a downwardly tapered body wall of the container, the sealing head being provided with a seal holding face fittable to the body wall inner surface, the apparatus being characterized in that recesses are formed respectively in a plurality of portions of the seal holding face along the circumference thereof for guiding slack produced in the lid peripheral edge portion at the time of sealing.
- With the container sealing apparatus of the present invention, the slack produced in the peripheral edge portion of the lid is guided to the recesses, and the wrinkles due to the slack are formed at the predetermined parts of the sealed portion.
- Further the conventional container sealing apparatus of the type described tend to produce higher pressure inside the container than outside the container, whereas we have found that the presence of recesses is less likely to produce positive pressure inside the sealed container. If the container has internal positive pressure, the air inside the container will act to escape from the container through a portion of relatively weak seal joint between the container and the lid, creating a pinhole in this portion to result in a faulty seal. The reason why the interior of the container is less likely to have positive pressure appears attributable to the recesses which provide vent channels through which air is released from between the container body wall and the lid peripheral edge portion.
- The present invention therefore precludes faulty seals due to uneven wrinkling and also obviates faulty seals due to the internal pressure of sealed containers.
- In the case where the seal holding face has an upper region and a lower region, and when the recesses are positioned in the lower region, the slack is guided by the lower region, permitting the upper region to produce a reliable seal.
- If the recesses are open downward at their lower ends, wrinkles are guided by the recesses extending to the lower end of the seal holding face initially when the lid is progressively bent, and therefore easily guided by the recesses. Accordingly, the wrinkles can be formed suitably. Moreover, air can be removed efficiently through the vent channels provided by the recesses, whereby faulty seals can be precluded more effectively.
- When the recesses are each in the form of a groove extending vertically and are arranged at a constant spacing, wrinkles can be formed uniformly, consequently giving an improved aesthetic appearance to the sealed portion.
- If the recesses have a width approximately equal to the spacing between the adjacent recesses, this contributes to a further improvement in the aesthetic appearance.
- The container sealing apparatus further comprises a holder for holding the container. The holder has a container inserting bore, and an inner peripheral surface of the holder defining the bore has an upper end portion providing a seal bearing face corresponding to the seal holding face. The seal bearing face has a diameter which is constant over the entire length thereof and equal to the outside diameter of the upper end of the container body wall. The wedge action of the seal holding face and the seal bearing face then produces an improved sealing effect.
- FIG. 1 is a vertical cross sectional view of a sealing apparatus of the invention;
- FIG. 2 is a view in horizontal section taken along the line II-II in FIG. 1;
- FIG. 3 is an enlarged view in section showing a sealing head and the vicinity thereof;
- FIG. 4 is a view for illustrating the sealing head in detail;
- FIG. 5 includes views for illustrating a sealing operation by the apparatus;
- FIG. 6 includes views subsequent to the views of FIG. 5 for illustrating the sealing operation;
- FIG. 7 is a view for illustrating a seal produced; and
- FIG. 8 is a perspective view of a container as sealed by the apparatus.
- An embodiment of the invention will be described below with reference to the drawings.
- FIG. 8 shows a container C and a lid L which are produced by the container sealing apparatus of the present invention.
- The container C is in the form of a circular cup of paper and has a downwardly tapered body wall B. The container C has a curl portion K at a brim defining an upper-end opening of the body wall B. The lid L is produced by blanking a lid material F of thermoplastic film, and is allowed to fall into the upper-end opening of the body wall B to form an upstanding rim R. The outer peripheral surface of the rim R is heat-sealed to the inner peripheral surface of the upper end of the body wall B. The upstanding rim R has a multiplicity of inwardly projecting vertical wrinkles M formed in a lower region thereof and arranged at a spacing. A tab T is provided integrally with a portion of outer periphery of the rim R.
- With reference to FIGS. 1 and 2, the container sealing apparatus comprises a
horizontal turntable 12 provided with a plurality of container holders 11 (only one shown) equidistantly spaced apart on a circumference at a predetermined distance from the center O of rotation, and intermittently drivable so as to stop thecontainer holders 11 one after another at a sealing station S, a lidmaterial transport device 13 for supplying the strip of lid material F to the sealing station S so as to position the lid material F across and above thecontainer holder 11 as stopped at the station S, a verticallymovable assembly 14 disposed at the sealing station S above theturntable 12, a verticaltubular cutter 15 depending from and attached to theassembly 14 for blanking out a lid L from the strip of lid material F along the container brim so as to separate the lid L from the remaining portion of the lid material F, a sealinghead 16 disposed inside thecutter 15 for sealing a peripheral edge portion of the blanked lid L to the inner surface of the container brim portion, and alid material holder 17 surrounding thecutter 15. - The
container holder 11 is in the form of a horizontal rectangular plate having a circular container holdingbore 21 vertically extending therethrough. As shown in greater detail in FIG. 3, the container holdingbore 21 has a diameter which is constant over the entire length thereof and equal to the outside diameter of upper end of the body wall B. The inner peripheral surface of thecontainer holder 11 defining the container holdingbore 21 has a seal bearing face 22 at its upper end portion. Theholder 11 has acontainer bearing face 24 at the upper-end opening edge portion of the seal bearing face 22 and an annularcutter escape groove 23 surrounding thecontainer bearing face 24. Although annular in its entirety, theescape groove 23 has abulging portion 23 a at a portion thereof corresponding to the tab T. Thecontainer holder 11 has at its top a lidmaterial bearing face 25 externally of thegroove 23. The lidmaterial bearing face 25 is at a higher level than thecontainer bearing face 24. - The body wall B is fitted into the container holding
bore 21 with the curl portion K received by thecontainer bearing face 24, whereby the container C is held by theholder 11. - The vertically
movable assembly 14 comprises ahorizontal top plate 33 movable upward and downward by a firstfluid pressure cylinder 32 facing vertically downward and attached to asupport member 31, ahorizontal bottom plate 34 disposed below thetop plate 33 at a distance therefrom,first spacers 35 in the form of vertical rods and arranged between thetop plate 33 and thebottom plate 34 at outer peripheral edge portions thereof, and a secondfluid pressure cylinder 36 connected to the piston rod of the firstfluid pressure cylinder 32, mounted on the upper side of thetop plate 33 centrally thereof and facing vertically downward. -
First guide rods 41 extending vertically downward are attached to thefirst cylinder 32. The first guide rods 41 slidably extend through thetop plate 33 in the vicinity of thefirst spacers 35. - The
top plate 33 has arod hole 42 centrally thereof with the piston rod of thesecond cylinder 36 inserted through the hole. Ahead hole 43 is formed in thebottom plate 34 centrally thereof. Thebottom plate 34 has acontainer holding member 52 in the form of a vertical sleeve and extending downward from the inner periphery thereof defining thehead hole 43. A horizontalhead mount disk 44 is connected to the piston rod of thesecond cylinder 36.Second guide rods 45 are provided upright on the upper side of thehead mount disk 44 at peripheral edge portions thereof. The second guide rods 45 slidably extend through thetop plate 33 to a position thereabove, between thesecond cylinder 36 and the respectivefirst guide rods 41. Astopper 46 is provided at the upwardly projecting end of eachsecond guide rod 45. Asecond spacer 47 provided around the upward projection of therod 45 is interposed between thetop plate 33 and thestopper 46. - The
cutter 15 is fixedly suspended from the lower side of thebottom plate 34 so as to surround thecontainer holding member 52 and has ablade 51 positioned precisely above thecutter escape groove 23. - The sealing
head 16 comprises a verticaltubular heater 61 attached to the lower side of thehead mount disk 44 to depend therefrom and having a lower end portion extending through thehead hole 43, and anannular sealing member 62 attached to the lower end of theheater 61 and to be heated by theheater 61. - The sealing
member 62 is provided along the outer periphery of its bottom with a downwardly projectingannular portion 71. The outer periphery of the sealingmember 62 including theannular portion 71 has a downwardly taperedseal holding face 72 fittable to the inner surface of the container body wall B. - A
suspension rod 73 extends downward from the center of lower side of thehead mount disk 44 axially of the sealinghead 16. Thesuspension rod 73 is provided at its lower end with alid suction member 74 in the form of a horizontal disk. Thelid suction member 74 has an outer peripheral portion positioned inwardly of theannular portion 71. Thesuction member 74 has a bottom surface slightly projecting downward beyond the lower face of theannular portion 71. - The
head mount disk 44 has alateral suction channel 75 extending from its outer periphery toward the center and having a bottom. Avertical suction channel 76 extends downward through the axis of thesuspension rod 73 from the bottom of thechannel 75. Thevertical suction channel 76 has a lower-end opening formed in the bottom surface of thelid suction member 74. - The
lid material holder 17 is in the form of a horizontal plate having the same shape as the lidmaterial bearing face 25 when seen from above. The lower surface of thelid material holder 17 is entirely covered with anelastic material 81.Third guide rods 82 are provided upright on the upper side of theholder 17 at a plurality of locations, respectively. Thethird guide rods 82 have upper ends slidably extending through thebottom plate 34 and each having astopper 83. A secondcompression coil spring 84 provided around eachthird guide rod 82 is interposed between thebottom plate 34 and thelid material holder 17. - As shown in detail in FIGS. 3 and 4, the outer peripheral surface of the sealing
member 62 has a straight cylindrical face above theseal holding face 72. Theseal holding face 72 has anupper region 91 and alower region 92 which have a boundary therebetween at an intermediate portion of the height of the holdingface 72. Theupper region 91 is smooth-surfaced over the entire circumference thereof, while thelower region 92 has a multiplicity ofrecesses 93 equidistantly spaced apart circumferentially thereof. Each of therecesses 93 resembles a vertically extending groove in shape and has a lower end which is open downward. Therecesses 93 have a width W1 which is approximately equal to the spacing W2 between the adjacent recesses 93. However, the number ofrecesses 93 is suitably variable over the range of about 4 to about 360, preferably over the range of 10 to 120. With reference to FIG. 7, the bottom of eachrecess 93 has a circular-arc contour in cross section. Therecess 93 has a depth which is preferably at least ¼ of the width W1 thereof. - The vertically
movable assembly 14 is moved upward or downward by the operation of the firstfluid pressure cylinder 32, and the sealinghead 16 is moved upward or downward relative to theassembly 14 by the operation of the secondfluid pressure cylinder 36. - With reference to FIG. 1, the lower surface of the
lid material holder 17 and that of thelid suction member 74 are generally at the same level when the verticallymovable assembly 14 is positioned at the upper limit of its vertical stroke, with the sealinghead 16 positioned at the upper limit of its vertical stroke. Theblade 51 of thecutter 15 is positioned at a level higher than this level. - In this state, the piston rod of the
first cylinder 32 is at the retracted limit position, and the piston rod of thesecond cylinder 36 is at the advanced limit position. At this time, the supply of air to thesecond cylinder 36 is stopped, and when the piston rod of the cylinder is pushed upward, the rod is free to retract. - The container is sealed by the operation to be described next with reference to FIGS. 5 and 6.
- FIG. 5(a) shows the apparatus in the same state as in FIG. 1. The vertically
movable assembly 14 is lowered to a position where thelid material holder 17 and thelid suction member 74 are brought into contact with the lid material F as shown in FIG. 5(b). - When the
assembly 14 is subsequently lowered, the second compression coil springs 84 are compressed as seen in FIG. 5(c), bringing thecutter 15 into contact with the lid material F, with the lid material F held by thelid material holder 17 with the force of the springs. At the same time, the reaction of the lid material F overcomes the gravity acting on the sealinghead 16, etc., retracting the piston rod of the secondfluid pressure cylinder 36, whereby the sealinghead 16 is raised relative to theassembly 14. - The
assembly 14 is further lowered to its lower limit position, causing thecutter 15 to blank out a lid L from the lid material F in the meantime as shown in FIG. 6(d). In blanking out the lid L, the force of the second compression coil springs 84 acts on the lid material F externally of thecutter 15 and the weight of the sealinghead 16, etc. acts on the material F internally of thecutter 15. This prevents the shift of the portion to be blanked out, assuring thecutter 15 of improved cutting performance. The lid L blanked out is attracted by thelid suction member 74. - Upon the descent of the
assembly 14 to its lower limit position, air is supplied to thesecond cylinder 36 to advance the piston rod thereof and lower the sealinghead 16 as shown in FIG. 6(e). This movement brings the sealingmember 62 into a container body wall B with the lid L held attracted by thelid suction member 74. At this time, the outer peripheral portion of the lid L including the tab T forms an upstanding rim R. Theseal holding face 72 of the sealingmember 62 placed into the container body wall B is pressed against the seal bearing face 22 of thecontainer holder 11, with the body wall B and the upstanding rim R interposed therebetween, whereby the body wall B and the upstanding rim R are heat-sealed. - The
seal holding face 72 is tapered downward, while the seal bearing face 22 is vertical. Accordingly, the heat-sealing operation produces a sealing pressure gradually decreasing from above downward between theseal holding face 72 and the seal bearing face 22 instead of producing a uniform sealing pressure between the two faces 72, 22. This ensures an improved sealing effect since the seal joint is given an increased strength where it is subjected to greater sealing pressure. - Furthermore, the portion to be sealed by the
upper region 91 of the sealingmember 62 is uniformly sealed over the entire circumference, whereas the portion to be sealed by thelower region 92 is sealed only at parts pressed by the parts of theregion 92 other than therecesses 93. The slack parts of the lid peripheral portion which are produced at this time make wrinkles M in therecesses 93 as shown in FIG. 7, and the wrinkles M remain unsealed. - At the time of sealing, air is released through the
recesses 93 from between the surface of the container to be sealed and the lower surface of peripheral edge portion of the lid. - The sealing
head 16 is thereafter raised along with the verticallymovable assembly 14. The sealinghead 16 is raised first as shown in FIG. 6(f). Even if the sealinghead 16 acts to lift the container C as attached thereto at this time, the container C is restrained by thecontainer holding member 52. Theassembly 14 is thereafter raised. - Although containers are transported by the turntable according to the foregoing embodiment, containers may be transported by a conveyor.
- According to the embodiment, the recesses are formed only in the lower region, whereas such recesses may be formed otherwise. The recesses may be formed in one or both of the upper region and the lower region or across the two regions. However, the recessed are provided preferably only in the lower region when the air release function, shape of wrinkles, sealing effect and aesthetic appearance of the product are considered collectively.
- The invention eliminates faulty seals and gives an improved aesthetic appearance to the sealed portion.
Claims (6)
1. An apparatus for sealing containers which comprises a sealing head for sealing a peripheral edge portion of a lid to an inner surface of a downwardly tapered body wall of the container, the sealing head being provided with a seal holding face fittable to the body wall inner surface, the apparatus being characterized in that recesses are formed respectively in a plurality of portions of the seal holding face along the circumference thereof for guiding slack produced in the lid peripheral edge portion at the time of sealing.
2. An apparatus for sealing containers according to claim 1 wherein the seal holding face has an upper region and a lower region, and the recesses are positioned in the lower region.
3. An apparatus for sealing containers according to claim 2 wherein the recesses each have a lower end which is open downward.
4. An apparatus for sealing containers according to claim 3 wherein the recesses are each in the form of a groove extending vertically and are arranged at a constant spacing.
5. An apparatus for sealing containers according to claim wherein the recesses have a width approximately equal the spacing between the adjacent recesses.
6. An apparatus for sealing containers according to any one of claims 1 to 5 which comprises a holder for holding the container and wherein the holder has a container inserting bore, and an inner peripheral surface of the holder defining the bore has an upper end portion providing a seal bearing face corresponding to the seal holding face, the seal bearing face having a diameter constant over the entire length thereof and equal to the outside diameter of an upper end of the container body wall.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003113173A JP4352166B2 (en) | 2003-04-17 | 2003-04-17 | Container sealing device |
JP2003-113173 | 2003-04-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040206048A1 true US20040206048A1 (en) | 2004-10-21 |
Family
ID=33157026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/709,095 Abandoned US20040206048A1 (en) | 2003-04-17 | 2004-04-13 | Apparatus for sealing containers |
Country Status (2)
Country | Link |
---|---|
US (1) | US20040206048A1 (en) |
JP (1) | JP4352166B2 (en) |
Cited By (17)
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US20100287892A1 (en) * | 2009-05-14 | 2010-11-18 | Relco Uk Ltd | Apparatus and method for sealing a container |
US20110167762A1 (en) * | 2010-01-14 | 2011-07-14 | Multivac Sepp Haggenmuller Gmbh & Co. Kg | Sealing tool |
US20150107191A1 (en) * | 2012-05-24 | 2015-04-23 | Gruppo Fabbri Vignola S.P.A. | Device for cyclic spreading of tray sealing film in sealing machines |
US20160130046A1 (en) * | 2014-11-12 | 2016-05-12 | A-American Machine & Assembly Co. | Manual Container Sealer and Methods |
US20170197741A1 (en) * | 2014-06-17 | 2017-07-13 | 1/4 Vin | Method and device for heat-sealing a lid onto the rim of a glass |
WO2017208011A1 (en) * | 2016-06-02 | 2017-12-07 | Ishida Europe Limited | Sealing tool module |
DE102016218218A1 (en) | 2016-09-22 | 2018-03-22 | Pantec Ag | Device for connecting at least two container parts to a container |
EP3315291A1 (en) | 2016-10-28 | 2018-05-02 | Danapak Flexibles A/S | An applicator tool for attaching a membrane to an inner surface of a side wall of a container and a method of use thereof |
DE102017101150B3 (en) | 2017-01-20 | 2018-05-30 | Ardagh Mp Group Netherlands B.V. | Tool and method for closing a container and method for producing a container having a plurality of spaces |
US20190062032A1 (en) * | 2017-08-30 | 2019-02-28 | Multivac Sepp Haggenmüller Se & Co. Kg | Sealing station and method for producing skin packaging with tear-off corner |
CN109661351A (en) * | 2016-07-11 | 2019-04-19 | 建筑自动机械制造A.C.M.A.股份公司 | To contain the air tight sealing device of the packaging of food |
FR3102462A1 (en) * | 2019-10-25 | 2021-04-30 | Guelt | SEALING DEVICE FOR CONTAINERS MADE OF RIGID MATERIAL SUCH AS GLASS, STONEWARE OR PORCELAIN |
IT201900024571A1 (en) * | 2019-12-18 | 2021-06-18 | Sarong Spa | APPARATUS AND METHOD OF SHEARING AND JOINING A SHEET ELEMENT TO A CONTAINER |
US11072452B2 (en) * | 2011-03-25 | 2021-07-27 | Sonoco Development, Inc. | Paper-based composite container for off-gassing products, and method for making same |
US20220144473A1 (en) * | 2020-11-09 | 2022-05-12 | Sonoco Development, Inc. | Seal and Cut Assembly for Heat Sealing Machine |
EP4032689A1 (en) * | 2021-01-22 | 2022-07-27 | Ulma Packaging, S.Coop. | Heat-sealing machine for generating easy-open packages |
US20230117653A1 (en) * | 2020-03-16 | 2023-04-20 | Yakult Honsha Co., Ltd. | Heat-seal device |
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JP6095896B2 (en) * | 2012-02-22 | 2017-03-15 | 株式会社Mizkan Holdings | Film welding method and apparatus, method for producing food in container, method for producing natto in container |
JP6095895B2 (en) * | 2012-02-22 | 2017-03-15 | 株式会社Mizkan Holdings | Container sealing method and apparatus, manufacturing method of food in container, manufacturing method of natto in container |
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US8407972B2 (en) * | 2009-05-14 | 2013-04-02 | Relco Uk Ltd | Apparatus and method for sealing a container |
US20100287892A1 (en) * | 2009-05-14 | 2010-11-18 | Relco Uk Ltd | Apparatus and method for sealing a container |
US20110167762A1 (en) * | 2010-01-14 | 2011-07-14 | Multivac Sepp Haggenmuller Gmbh & Co. Kg | Sealing tool |
US9003746B2 (en) * | 2010-01-14 | 2015-04-14 | Multivac Sepp Haggenmuller Gmbh & Co. Kg | Sealing tool |
US11072452B2 (en) * | 2011-03-25 | 2021-07-27 | Sonoco Development, Inc. | Paper-based composite container for off-gassing products, and method for making same |
US11760528B2 (en) | 2011-03-25 | 2023-09-19 | Sonoco Development, Inc. | Paper-based composite container for off-gassing products, and method for making same |
US20150107191A1 (en) * | 2012-05-24 | 2015-04-23 | Gruppo Fabbri Vignola S.P.A. | Device for cyclic spreading of tray sealing film in sealing machines |
US9764866B2 (en) * | 2012-05-24 | 2017-09-19 | Gruppo Fabbri Vignola S.P.A. | Device for cyclic spreading of tray sealing film in sealing machines |
US20170197741A1 (en) * | 2014-06-17 | 2017-07-13 | 1/4 Vin | Method and device for heat-sealing a lid onto the rim of a glass |
US10196184B2 (en) * | 2014-11-12 | 2019-02-05 | A-American Machine & Assembly Co. | Manual container sealer and methods |
US20160130046A1 (en) * | 2014-11-12 | 2016-05-12 | A-American Machine & Assembly Co. | Manual Container Sealer and Methods |
WO2017208011A1 (en) * | 2016-06-02 | 2017-12-07 | Ishida Europe Limited | Sealing tool module |
CN109661351A (en) * | 2016-07-11 | 2019-04-19 | 建筑自动机械制造A.C.M.A.股份公司 | To contain the air tight sealing device of the packaging of food |
US10894373B2 (en) | 2016-07-11 | 2021-01-19 | Azionaria Costruzioni Macchine Automatiche A.C.M.A. S.P.A. | Hermetic sealing device for packages containing food products |
WO2018054695A1 (en) | 2016-09-22 | 2018-03-29 | Pantec Ag | Device for connecting two container parts |
DE102016218218A1 (en) | 2016-09-22 | 2018-03-22 | Pantec Ag | Device for connecting at least two container parts to a container |
EP3315291A1 (en) | 2016-10-28 | 2018-05-02 | Danapak Flexibles A/S | An applicator tool for attaching a membrane to an inner surface of a side wall of a container and a method of use thereof |
WO2018078118A1 (en) | 2016-10-28 | 2018-05-03 | Danapak Flexibles A/S | An applicator tool for attaching a membrane to an inner surface of a side wall of a container and a method of use thereof |
DE102017101150B3 (en) | 2017-01-20 | 2018-05-30 | Ardagh Mp Group Netherlands B.V. | Tool and method for closing a container and method for producing a container having a plurality of spaces |
WO2018134794A2 (en) | 2017-01-20 | 2018-07-26 | Ardagh Mp Group Netherlands B.V. | Tool and method for closing a container and method for producing a container with several compartments |
US11572205B2 (en) | 2017-01-20 | 2023-02-07 | Ardagh Mp Group Netherlands B.V. | Tool and method for closing a container and method for producing a container with several compartments |
CN110536839A (en) * | 2017-01-20 | 2019-12-03 | 阿德Mp集团荷兰有限责任公司 | The method that the tool and method of closed container and manufacture have the container in multiple spaces |
US20190062032A1 (en) * | 2017-08-30 | 2019-02-28 | Multivac Sepp Haggenmüller Se & Co. Kg | Sealing station and method for producing skin packaging with tear-off corner |
US11292653B2 (en) * | 2017-08-30 | 2022-04-05 | Multivac Sepp Haggenmueller Se & Co. Kg | Sealing station and method for producing skin packaging with tear-off corner |
EP3450327A1 (en) * | 2017-08-30 | 2019-03-06 | MULTIVAC Sepp Haggenmüller SE & Co. KG | Sealing station and method for the production of skin packages with tear-open corner |
CN109421967A (en) * | 2017-08-30 | 2019-03-05 | 莫迪维克西普哈根牧勒股份及两合公司 | Seal station and for manufacture have tear angle skin packaging method |
FR3102462A1 (en) * | 2019-10-25 | 2021-04-30 | Guelt | SEALING DEVICE FOR CONTAINERS MADE OF RIGID MATERIAL SUCH AS GLASS, STONEWARE OR PORCELAIN |
IT201900024571A1 (en) * | 2019-12-18 | 2021-06-18 | Sarong Spa | APPARATUS AND METHOD OF SHEARING AND JOINING A SHEET ELEMENT TO A CONTAINER |
WO2021124151A1 (en) * | 2019-12-18 | 2021-06-24 | Sarong Societa' Per Azioni | Apparatus and method for cutting and joining a sheet element to a container |
US20230117653A1 (en) * | 2020-03-16 | 2023-04-20 | Yakult Honsha Co., Ltd. | Heat-seal device |
US20220144473A1 (en) * | 2020-11-09 | 2022-05-12 | Sonoco Development, Inc. | Seal and Cut Assembly for Heat Sealing Machine |
WO2022099197A1 (en) * | 2020-11-09 | 2022-05-12 | Sonoco Development, Inc. | Seal and cut assembly for heat sealing machine |
EP4032689A1 (en) * | 2021-01-22 | 2022-07-27 | Ulma Packaging, S.Coop. | Heat-sealing machine for generating easy-open packages |
Also Published As
Publication number | Publication date |
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JP2004315050A (en) | 2004-11-11 |
JP4352166B2 (en) | 2009-10-28 |
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