TW201134648A - Method of closing a sack body - Google Patents

Method of closing a sack body Download PDF

Info

Publication number
TW201134648A
TW201134648A TW099137587A TW99137587A TW201134648A TW 201134648 A TW201134648 A TW 201134648A TW 099137587 A TW099137587 A TW 099137587A TW 99137587 A TW99137587 A TW 99137587A TW 201134648 A TW201134648 A TW 201134648A
Authority
TW
Taiwan
Prior art keywords
bag
fabric
end section
layer
tape
Prior art date
Application number
TW099137587A
Other languages
Chinese (zh)
Inventor
Ernesto Schobesberger
Herwig Worff
Original Assignee
Herwig Worff
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 Herwig Worff filed Critical Herwig Worff
Publication of TW201134648A publication Critical patent/TW201134648A/en

Links

Classifications

    • 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
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
    • 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
    • B29C66/135—Single hemmed joints, i.e. one of the parts to be joined being hemmed in the joint area
    • B29C66/1352—Single hem to hem joints
    • 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
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729—Textile or other fibrous material made from plastics
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7371—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7371—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
    • B29C66/73711—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable oriented
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7371—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
    • B29C66/73711—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable oriented
    • B29C66/73712—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable oriented mono-axially
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • 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
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • B65B51/146—Closing bags
    • 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • B65B51/225—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding by ultrasonic welding
    • 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
    • B65B7/02—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks
    • B65B7/06—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks by collapsing mouth portion, e.g. to form a single flap
    • B65B7/08—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks by collapsing mouth portion, e.g. to form a single flap and folding
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • 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
    • B29C66/812—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2223/00—Use of polyalkenes or derivatives thereof as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2313/00—Use of textile products or fabrics as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/005—Oriented
    • B29K2995/0051—Oriented mono-axially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/002—Flexible containers made from webs by joining superimposed webs, e.g. with separate bottom webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/20—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks doubled around contents and having their opposed free margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Making Paper Articles (AREA)

Abstract

In a method of closing a sack body made from a fabric of uniaxially stretched polymer strips, particularly polyolefin strips or polypropylene strips, wherein at least two fabric layers are connected to each other along a seam extending over the width of the sack body, the seam is made as a welded seam, whereby the welding involves at least one ultrasonic welding step.

Description

201134648 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種閉合袋體之方法’該袋體係由單轴 拉伸聚合物帶（strip)之編織物（woven fabric)製成’尤其 是聚烯烴或聚丙烯帶，該等帶係經由使用沿該袋體寬度延 伸之縫（seam)之至少兩個織物（fabric)層彼此連結，以及， 袋子由單軸拉伸聚合物帶之織物製成，尤其是聚烯烴或聚 丙烯帶，該袋子在一個或兩個側邊被閉合。 本發明進一步關於一種閉合袋體之裝置’該袋體係由 單軸拉伸聚合物帶之織物製成，尤其是聚烯烴或聚丙烯 帶，尤其是為了執行該方法，該裝置包括送料裝置（feeding device)，用以將該袋體送至密封站台（sealing station)。 【先前技術】 各種袋子被用來包裝貨品，尤其是塊材（bulk mater i a 1)。本發明係關於單軸拉伸聚合物帶之織物製成之 袋子，尤其是聚烯烴或聚丙稀帶。通常藉由拉伸聚合物膜 製造此等帶，尤其是聚烯烴或聚丙烯膜拉伸至於其長度之 4至10倍，藉以將分子鏈定向成帶的經度方向 (longitudinal direction)，且相較於原始膜於此方向具 有約6至10倍之強度。帶寬度通常量得約1.5至1〇mm， 厚度通常量得約20至80#m。 此等袋子的粗略分類區別介於墊形及箱形之間。 墊形袋子（cushion-shaped sack)通常藉由用織縫 (textile seam)或熔接縫（weided seam)組裝底部而產生 95036 3 201134648 墊形袋子組裝成頂部處開口之部分完成之袋子，而管狀材 料在滾輪中輸送。頂部處開口之部分完成之組裝袋子通常 在裝填後予以密封。 從管狀材料製成的袋子以底部之縫直接組裝於裝填 系.、先處即所明的FFS系統（form, fi 11 and seal)，亦在 氆封後以縫予以密封。織針織成的織縫之缺點在於’袋子 的内谷物可從縫孔洞（seam perforation)漏出。此外，該 等縫孔洞造成弱點（weak point)，使得袋子會在縫處撕 裂。再者，藉由機器及織針之織縫的製造係有一系列問題， 例如，織針破裂的風險及使用於縫的撕裂威脅。進一步缺 點是，縫合時縫紉機頭（sewinghead)的送料速率受限使 得現今存在的機器具有每分鐘僅約40至45個袋子的處理 速度。另外’對織縫而言，熔接縫可以類似於上述織縫的 方式使用於膜式袋子（film sack)的底部及裝填後再次用 於頂部處。 已經存在各種方法用於密封箱形袋子的底部。根據先 前技術的大部分情況中，折疊的底部以混合的黏著劑予以 膠合（glue) ’因為常組成織物的聚烯烴或聚丙稀材料只能 費力地予以膠合。循著標準膠合程序，習知黏著劑具有額 外的缺點’如低耐久性、隨溫度變化的脆性及濕氣造成的 黏性耗損。第W0 95/30598 A1號中敘述一種改進製程，其 中，袋子之至少一端，尤其是底部區域，係經由中介声連 結’該中介層尤其是由熱塑性塑膠製成，該熱塑性塑膠尤 其是聚烯烴，較佳為使用施加熱至單轴拉伸聚合物帶之織 95036 201134648 物製，的覆蓋片（CC)Ver sheet)的聚丙稀材料，該聚合物帶 尤其是聚烯烴帶，較佳為聚丙烯材料帶，而且其中只有外 表面區域，尤其是少於織物帶自底部之材料厚度的30%與 =蓋片包括熱施加造成的未定向分子，藉以分子定向存在 材料區域中。此方法的缺點是熱施加的控制及限制， /旱、有外表面區域藉由分子的未定向而實際受到加熱及 相車X於具有材料的拉伸造成的定向分子之區域，具 有未定向分子的織物之區域表現出大幅下降的強度。 【發明内容】 代 發明目的在於設計藉由閉合儘可能微幅弱化 人縫材料之方式閉合之袋子’使得閉合的袋子不會在閉 二、’、1區域中撕裂’即使在承受高機械應力時。此外，相 量於】知縫合閉合縫的製造，本發明應能大幅提高生產 t本發明應能提高製程安全性、減少機器方面的 成本™品的光學優點。本發明 在於關解決方案’最初所述種類的方法之特徵 的炼接步驟==以使熔接包含至少-個超音波 位置或Γ 簡單方式獲得明確的炼接 減少。尤^使得由熔接作用的炫接縫中的織物部分可 用於產生彼==應於較佳實施例時，如果超音魏接將 弱化， 因為分子 藉以在各別^ ㈣接點’織物將只在炫接點 體性 鍵，熔接點之間的強度將維持其整 向在後續超音波熔接時只失去少量，織物耗損些微 95036 5 201134648 強度。因此’較佳的是，以熔接點配置成多列的方式進行， 藉以使在一列中的熔接點與相鄰列中的熔接點交錯。熔接 點的偏移配置有效防止撕裂連續線（tear continuati〇n line)的形成。 在塑膠超音波熔接期間，待熔接的織物的帶係經由高 頻率機械振動暴露於熔接點處的熱，其熔化或至少軟化材 料。藉此’接合力及超音波振動具有相同的工作方向。經 度方向波造成材料及接合區中的振盪壓縮應力 (oscillating compressive stress) ’ 其導致塑膠的塑化。 當施加能量終止時，熔接點處的材料在壓力下冷卻，而形 成了永久性、機械性穩定的連結。 根據本發明，熔接縫沿著袋體寬度延伸，使得熔接縫 實質上完全閉合討論中之所述袋子之側邊。具有閥的袋子 中，如可藉由從袋子端部折疊疊合角落形成者，熔接=將 改變袋體的寬度（折疊疊合角落導致對應地縮減），以及對 應地延伸跨過折疊疊合織物。 該方法的優點在於織物的織針孔不會造成的弱點。此 外，超音波熔接係較低成本，且允許較高工作迷度。顯^ 地，相較於先前技術之習知方法，用财法每分鐘可縫: 更多袋子。熔接連結不會遭受老化或脆化。亦有簡單的二 理選擇，如袋子單獨地包含單一種材料。 0 、处 然而，上述熔接縫剝離的超音波熔接產生的炫接 有風險的，彼此連結的織物層藉由該熔接縫於織物 '疋 橫切向互相拉扯，導致熔接連結的鬆弛。、、 面的 口此，通常需要 95036 6 201134648 、專炫接連結只承受剪力，意即其應只承受平行於織 . 物表1的應力。此方法的較佳進〆步態樣提供：該袋體之 平坦螭。卩段被翻轉或被折疊，且其平坦端部段包括至少一 個開口鸲’使得超音波的熔接步驟包括翻轉端部段及袋體 之超曰波溶接。端部段的翻轉碟保熔接縫不再承受剝離 力’使得縫可抵抗高程度的機械應力。特別情況是，如果， 對應於較佳進一步態樣，翻轉的端部段只與面向翻轉端部 丰又之袋體之織物層連結，尤其是熔接。 另外’亦可接著進行的是，使得使用超音波熔接之端 部段的兩個織物層的熔接在平坦端部段未被翻轉的狀態下 進行’炫接端部段後來被翻轉，以及翻轉端部段接著與袋 體連結。接著可形成連結，例如，經由黏膠，尤其是擠出 黏膠（extrusion giuing)或藉由使用熱空氣熔接。 為了避免面向翻轉端部段之該袋體之織物層與背向 該翻轉端部段之該袋體之織物層熔接在一起，有助益的是 將分隔層插入或塗覆至袋體。較佳的是，分隔層比該袋子 織物具有較高之熱傳導性（thermal conductivity)。較佳 的是’分隔層藉由塗佈製程予以塗覆，尤其是其含有金屬。 較佳的是，使用含金屬喷塗（metal containing lacquer) 作為該分隔層。此特性的分隔層允許金屬内容物造成的熱 散逸’使得背向該翻轉端部段袋體的織物層承受些許或完 全無熱。激發出超音波振動的振蘯器（oscillator)造成的 熱導入係較佳為作用於翻轉端部段上。 如果’對應於較佳進一步態樣，從翻轉所致為最上層 7 95036 201134648 之織物層開始，精確地藉由使用超音波熔接而彼此連結直 接疊置在彼此之頂部之數層織物層，該超音波熔接之次數 對應於該等織物層總層數之一半再加一，係總是有效地防 止對炼接連結之剝離力（peeling force)的暴露。 如本發明之又一態樣，提供最初所述種類的袋子，其 根據本發明設計使得至少一個閉合側邊包括翻轉端部段， 該翻轉端部段只與面向翻轉端部段之袋體之織物層（尤其 是經由超音波熔接）連結。 較佳進一步態樣係定義於申請專利範圍附屬項中，且 基本上有關於承接上述方法中已述及的特徵特性。 本發明之進一步態樣，提供閉合袋體之裝置，該袋體 係由單軸拉伸聚合物帶之織物製成，尤其是聚烯烴帶或聚 丙烯帶，尤其是用於實行上述方法，該裝置包括送料裝置， 用以將夂體送至雄、封站台。根據本發明，進一步改進該裝 置使得密封站台包括超音波炫接站台。 【實施方式】 下述内容中，將基於圖式中所示的例示性示範實施 例’更詳細地說明本發明。 第1圖顯不用於製造本發明之袋子的織物管之示意剖 面圖’第2圖顯示具有翻轉的端部段的織物；帛3圖顯示 處於炫接狀態的端部段；第4圖為第3圖根據箭頭IV之視 圖’以及’第5圖為第4圖中的區域V之放大視圖。 來自管狀_的袋子1在第1 ®係呈現平坦狀態，其 開口端應為閉合以製造㈣袋子。如第1目，在初始狀態 8 95036 201134648 中可以見到兩個織物層3及4。 袋子，其可能落入本發明的範園=具有折疊側邊的 四層織物層。然而，本發明將僅在2豐側邊區域中將有 子之基礎上，在下述内容中予以^於不具折疊側邊的袋 下述方法將用於閉合袋子丨 2圖所示’將翻轉(turn_〇ver)姆應:二 四層織物層將在翻轉區域中（即層3、4、Τγ=置= 此的頂部。分隔層8配置於織物 ° 、 '七u r d及4之間。分隔層可 為塗層（coating)，該塗層至少塗覆 晶Λ…备 復於面向織物層3的織物 曰4之側邊或面向織物層4的織物層3之側邊 、 在後續超音波熔接期間防止織物層3 & 刀層 結，並將防止織物層3受到損傷。 水久性連 第2圖所示為超音㈣接裝置的示意表示圖， 件（anvil)9及音極（son〇tr〇de)1〇組成。將織物/、砧 6及7夾置於站件9及音極1G之間以進躲接，^、4、 9及音極1〇根據箭頭U移動至待熔接的區段。將:砧件 發出超音波振動，該超音波振動造成音極1〇與織物g極數 點的溶接。藉此，將織物層4、6及7溶接在一起。觸 8防止織物層3及4的永久性連結。如果織物層3及隔層 炫接製程後彼此黏附而不管分隔層8，分隔層8仍 在 織物層3及4的永久性連結以使此等織物層可予以防止 分隔而不損傷織物材料。另外，在袋子的裴填期間，動地 内谷物的重量’織物層可彼此分隔。 因為 第3圖顯示閉合狀態中的袋子端部。如織物 嘈3及4 9 95036 201134648 彼此不連結，内容物的重量不施加所謂的剝離力於4對6 及6對7的連結上，但取而代之的是所謂的剪力（如 force)。此等連結可承受極高的剪力，使得即使在高應力 的情況下也此維持袋子閉合。 第4圖顯示第3圖中根據箭頭IV的袋子閉合之視圖， 藉此可見到炫接已沿著袋子1整體寬度延伸的熔接縫形式 進行。然而’超音波溶接縫並非以連續縫形成，但包括（如 第5圖詳細視圖所示）數個交錯溶接點（stwe i d i叫 P〇int)13。熔接點13的交錯配置使經炼接作用的帶免於因 為炼接造成分子中的結構改變而沿著其整體寬度弱化。溶 接點13的格狀圖案配置產生織物層的穩定連結，而無疑地 不會影響整體織物的強度。 為了維持適當強度，如果溶接點13的全部區域小於 ,、較佳為小於25%，尤其是小於15%的溶接㈣的區域 疋足夠的。 開口端3在裝填袋子！後，可以前述關於開口端2之 閉合的類似方式予以閉合。 【圖式簡單說明】 第1圖顯示用於製造本發明之袋子的織物管之示意剖 面圖； · 第2圖顯示具有翻轉的端部段的織物； 第3圖顯示處於熔接狀態的端部段； 第4圖為第3圖根據箭頭iV之視圖；以及 第5圖為第4圖中的區域v之放大視圖。 95036 10 201134648 【主要元件符號說明】 1 袋子 2 開口端 3 織物層 4 織物層 5 端部段 6 織物層 7 織物層 8 分隔層 9 砧件 10 音極 11 箭頭 12 熔接缝 13 熔接點 IV 箭頭 V 區域 11 95036201134648 VI. Description of the Invention: [Technical Field] The present invention relates to a method of closing a bag body. The bag system is made of a uniaxially stretched polymer woven fabric, especially a polyolefin or polypropylene tape joined to each other via at least two fabric layers using seams extending along the width of the bag, and the bag is made of a fabric of a uniaxially stretched polymer tape In particular, a polyolefin or polypropylene tape, the bag being closed on one or both sides. The invention further relates to a device for closing a bag body. The bag system is made of a fabric of a uniaxially stretched polymer tape, in particular a polyolefin or polypropylene tape, in particular for carrying out the method, the device comprising a feeding device Device) for sending the bag to a sealing station. [Prior Art] Various bags are used to package goods, especially bulk mater i a 1 . The present invention relates to a bag made of a fabric of a uniaxially stretched polymer tape, especially a polyolefin or a polypropylene tape. These tapes are typically made by stretching a polymeric film, in particular a polyolefin or polypropylene film, stretched to 4 to 10 times its length, thereby orienting the molecular chains into the longitudinal direction of the tape, and The original film has a strength of about 6 to 10 times in this direction. The tape width is usually about 1.5 to 1 mm, and the thickness is usually about 20 to 80 #m. The rough classification of these bags differs between the cushion shape and the box shape. A cushion-shaped sack is usually produced by assembling a bottom portion with a mesh seam or a welded seam to produce 95036 3 201134648. The cushion-shaped bag is assembled into a partially finished bag at the top, and the tubular material is formed. Transported in the roller. The assembled bag, which is partially completed at the top, is usually sealed after filling. The bag made of tubular material is directly assembled to the filling system with the bottom seam. The first FFS system (form, fi 11 and seal) is also sealed with a seam after the sealing. A disadvantage of woven knit seams is that the inner grain of the bag can escape from the seam perforation. In addition, the seam holes create a weak point that causes the bag to tear at the seam. Furthermore, the manufacture of woven seams of machines and needles has a number of problems, such as the risk of rupture of the needles and the threat of tearing used in the seams. A further disadvantage is that the feed rate of the sewing head at the time of sewing is limited so that the machines present today have a processing speed of only about 40 to 45 bags per minute. Further, for the woven seam, the weld seam can be used at the bottom of the film sack in a manner similar to the above-described woven seam and used again at the top after filling. Various methods have been used for sealing the bottom of a box-shaped bag. In most cases of the prior art, the bottom of the fold is glued with a mixed adhesive' because the polyolefin or polypropylene material that normally makes up the fabric can only be glued effortlessly. Following the standard gluing procedure, conventional adhesives have additional disadvantages such as low durability, brittleness with temperature changes, and viscous wear due to moisture. An improved process is described in WO 95/30598 A1, wherein at least one end of the bag, in particular the bottom region, is interposed via an intermediate acoustic bond, which is in particular made of a thermoplastic plastic, in particular a polyolefin, Preferably, a polypropylene material of a cover sheet (CC) Ver sheet, which is applied to the uniaxially stretched polymer tape, is used, especially a polyolefin tape, preferably polypropylene. The strip of material, and which has only the outer surface area, especially less than 30% of the thickness of the material from the bottom of the fabric strip and = the cover sheet comprises unoriented molecules caused by heat application, whereby the molecular orientation is present in the material area. Disadvantages of this method are the control and limitation of heat application, / drought, the outer surface area is actually heated by the unoriented orientation of the molecules, and the area of the oriented molecules caused by the stretching of the material, with unoriented molecules The area of the fabric exhibits a significant drop in strength. SUMMARY OF THE INVENTION The object of the present invention is to design a bag that is closed by closing a manner that weakens the seam material as much as possible, so that the closed bag does not tear in the closed area, ', 1 region' even under high mechanical stress Time. In addition, the invention is capable of greatly improving the production of the present invention. The invention should be capable of greatly improving the optical advantages of the invention, which should improve the process safety and reduce the cost of the machine. The present invention is directed to a refining step of the solution of the method of the type initially described == to achieve a clear refining reduction in such a way that the fusing comprises at least one ultrasonic position or in a simple manner. In particular, the portion of the fabric in the seam that is fused by the weld can be used to produce the same. == In the preferred embodiment, if the supersonic joint is weakened, because the molecules are at each ^(four) joint, the fabric will only In the cool joint physical bond, the strength between the welded joints will maintain its omnidirectional loss in the subsequent ultrasonic welding only a small amount, the fabric wears a slight amount of 95036 5 201134648 strength. Therefore, it is preferable to perform the arrangement in which the fusion splices are arranged in a plurality of rows so that the fusion splices in one column are interlaced with the splice dots in the adjacent columns. The offset configuration of the weld joint effectively prevents the formation of a tear continuous line (tear continuati〇n line). During plastic ultrasonic welding, the strip of fabric to be welded is exposed to heat at the weld joint via high frequency mechanical vibration, which melts or at least softens the material. Thereby the 'engagement force and ultrasonic vibration have the same working direction. Longitude directional waves cause oscillating compressive stress in the material and the joint zone, which results in plasticization of the plastic. When the applied energy is terminated, the material at the weld joint cools under pressure, forming a permanent, mechanically stable bond. In accordance with the present invention, the weld seam extends along the width of the bag such that the weld seam substantially completely closes the sides of the bag in question. In a bag with a valve, such as by folding the overlapping corners from the end of the bag, the weld = will change the width of the bag (folding the folded corners resulting in corresponding reduction), and correspondingly extending across the folded laminated fabric . The advantage of this method is that the needle holes of the fabric do not cause weaknesses. In addition, ultrasonic welding is less costly and allows for higher working haze. Explicitly, compared to the conventional methods of the prior art, the method can be sewn every minute with a wealth of money: more bags. The welded joint does not suffer from aging or embrittlement. There are also simple secondary options, such as the bag containing a single material separately. 0. However, the splicing caused by the ultrasonic welding of the above-mentioned welded seam peeling is risky, and the fabric layers connected to each other are pulled by the welded joints in the transverse direction of the fabric, causing slack in the welded joint. The mouth of the face is usually 95036 6 201134648. The splendid joint only bears the shear force, which means that it should only bear the stress parallel to the weave. A preferred embodiment of the method provides that the bag is flat. The cymbal section is inverted or folded, and its flat end section includes at least one opening 鸲' such that the ultrasonic welding step includes flipping the end section and the super-wave fusion of the bag. The inverted disc weld seam of the end section no longer withstands the peeling force' so that the seam resists high levels of mechanical stress. In particular, if, corresponding to a preferred further aspect, the inverted end section is only joined to the fabric layer facing the flapped end of the bag, in particular welded. In addition, it can be followed that the fusion of the two fabric layers using the end sections of the ultrasonic welding is carried out in a state in which the flat end sections are not inverted, and the 'sleeve end section is later turned over, and the inverted end The section is then joined to the bag. A bond can then be formed, for example, via an adhesive, especially an extrusion giuing or by using hot air. In order to prevent the fabric layer of the bag facing the inverted end section from being welded to the fabric layer of the bag facing away from the inverted end section, it is helpful to insert or apply the separator layer to the bag body. Preferably, the separator layer has a higher thermal conductivity than the bag fabric. Preferably, the 'separator layer is coated by a coating process, especially containing metal. Preferably, a metal containing lacquer is used as the separator. The separating layer of this characteristic allows the heat dissipation caused by the metal contents to cause the fabric layer facing away from the inverted end section bag to be somewhat or completely free of heat. The heat introduction system caused by the oscillator that excites the ultrasonic vibration preferably acts on the inverted end section. If 'corresponding to a preferred further aspect, starting from the fabric layer of the uppermost layer 7 95036 201134648 caused by the inversion, precisely by using ultrasonic welding to join the plurality of layers of fabric directly superimposed on top of each other, The number of ultrasonic fusions corresponding to one-and-a-half of the total number of layers of the fabric layers is always effective to prevent exposure to the peeling force of the refining joint. According to a further aspect of the invention, there is provided a bag of the kind previously described, which is designed in accordance with the invention such that at least one of the closed sides comprises a flipped end section, the inverted end section only having a pocket facing the inverted end section The fabric layers (especially via ultrasonic welding) are joined. Preferred further aspects are defined in the scope of the patent application and are substantially related to the characterizing features already mentioned in the above methods. In a further aspect of the invention, there is provided a device for closing a bag body made of a fabric of a uniaxially stretched polymeric tape, in particular a polyolefin tape or a polypropylene tape, in particular for carrying out the above method, the device The utility model comprises a feeding device for sending the carcass to the male and the sealing platform. According to the present invention, the apparatus is further improved such that the sealed station includes an ultrasonic splicing station. [Embodiment] In the following, the present invention will be described in more detail based on the exemplary exemplary embodiment shown in the drawings. Figure 1 shows a schematic cross-sectional view of a fabric tube used to make the bag of the present invention. Figure 2 shows the fabric with the inverted end section; Figure 3 shows the end section in the spliced state; Figure 4 shows the 3 is an enlarged view of a region V in FIG. 4 according to the view of arrow IV and 'Fig. The bag 1 from the tubular _ is in a flat state in the 1st line, and its open end should be closed to manufacture a (4) bag. As in the first item, two fabric layers 3 and 4 can be seen in the initial state 8 95036 201134648. A bag, which may fall within the scope of the invention, has four layers of fabric with folded sides. However, the present invention will be applied to a bag having no folded side only in the following aspects of the side of the side, and the following method will be used to close the bag 丨 2 as shown in the figure. Turn_〇ver) m should be: two or four layers of fabric will be in the flipping area (ie layer 3, 4, Τ γ = set = this top. The partition layer 8 is placed between the fabric °, 'seven urd and 4. The layer may be a coating which is at least coated with a crystal ruthenium ... for the side of the fabric 曰 4 facing the fabric layer 3 or the side of the fabric layer 3 facing the fabric layer 4, for subsequent ultrasonic welding During the period, the fabric layer 3 & knife layer is prevented and the fabric layer 3 is prevented from being damaged. The long-term connection is shown in Fig. 2 as a schematic representation of the supersonic (four) connection device, anvil 9 and the sound pole (son 〇tr〇de)1〇. Place the fabric/, anvil 6 and 7 between the station 9 and the pole 1G to avoid the collision, ^, 4, 9 and the pole 1〇 move to the arrow U The welded section: the anvil is subjected to ultrasonic vibration, which causes the sound pole 1〇 to be melted to the number of poles of the fabric g. Thereby, the fabric layers 4, 6 and 7 are melted. Together, the contact 8 prevents permanent attachment of the fabric layers 3 and 4. If the fabric layer 3 and the barrier layer adhere to each other without the separation layer 8, the spacer layer 8 is still permanently joined to the fabric layers 3 and 4 so that These fabric layers can be prevented from separating without damaging the fabric material. In addition, during the filling of the bag, the weight of the cereal grains in the moving fabric can be separated from each other. Figure 3 shows the end of the bag in the closed state.嘈3 and 4 9 95036 201134648 are not connected to each other, the weight of the contents does not apply the so-called peeling force on the 4 to 6 and 6 to 7 connections, but instead the so-called shear force (such as force). Withstands extremely high shear forces, which keeps the bag closed even under high stress. Figure 4 shows the view of the bag closed according to arrow IV in Figure 3, whereby it can be seen that the splicing has been along the entire bag 1 The width extends the weld seam form. However, the 'ultrasonic weld seam is not formed by a continuous seam, but includes (as shown in the detailed view of Fig. 5) a plurality of staggered fusion joints (stwe idi called P〇int) 13. Fusion joint 13 Intercourse The configuration is such that the refining strip is protected from weakening along its overall width due to structural changes in the molecule due to refining. The lattice pattern of the splice 13 creates a stable bond of the fabric layer without undoubtedly affecting the overall fabric. In order to maintain the proper strength, if the entire area of the fusion point 13 is smaller than, preferably less than 25%, especially less than 15%, the area of the fusion (four) is sufficient. After the open end 3 is filled with the bag! A similar manner is shown regarding the closure of the open end 2. [Schematic description of the drawings] Figure 1 shows a schematic sectional view of a fabric tube for manufacturing the bag of the present invention; Figure 2 shows a fabric having inverted end sections Fig. 3 shows an end section in a welded state; Fig. 4 is a view of Fig. 3 according to an arrow iV; and Fig. 5 is an enlarged view of a region v in Fig. 4. 95036 10 201134648 [Description of main component symbols] 1 Bag 2 Open end 3 Fabric layer 4 Fabric layer 5 End section 6 Fabric layer 7 Fabric layer 8 Separation layer 9 Anvil 10 Sound pole 11 Arrow 12 Weld seam 13 Weld joint IV Arrow V Area 11 95036

Claims (1)

201134648 201134648 七 1. 、申请專利範圍： -種閉合袋體之方法，該袋體係由單妹 織物製成，尤其是聚稀煙帶或聚丙烯帶，1中:至小^ 個織物層沿著延伸過該袋體寬度之縫_ ^ 中，該縫係製成炼接縫，藉以使該 連^一其 音波的熔接步驟。 匕3至乂一個超 2. 如申請專利範圍第1項所述之 坦端部段被翻轉或被折疊，且今平’、中義體之平 β平坦端部段包括至Ψ一 個開口端’以及其中，該超音 夕 端部段及該袋體之超音波溶接。的总接步驟包括該翻轉 3. 如申=專利範圍第2項所述之方法，其中，㈣ 段向該翻轉端部段之該袋體之織物層溶接。 4·如申μ專利範圍第2項或第3項所述之方法，其中，分 體或被塗覆避免面向該翻轉端部 段之以衣體之織物層與背向該翻轉端部段之該袋體之 織物層熔接在一起。 5·如申請專利範圍第4項所述之方法，其+，該分隔層藉 由塗佈製程予以塗覆。 6.如申請專郷圍第2項至第5項中任—項所述之方法， 其中，從該翻轉所致為最上層之織物層開始，精確地藉 由使用超音波熔接而彼此連結直接疊置在彼此之頂部 之數層織物層’該超音波熔接之次數對應於該等織物層 總層數之一半再加一。 7.如申請專利範圍第1項至第6項中任一項所述之方法， 1 95036 201134648 其中，該超音波熔接用於產生彼此分隔之數個熔接點。 8·如申請專利範圍第7項所述之方法，其中，該等熔接點 配置成多列’藉以使在一列中的該等熔接點與相鄰列中 的該等熔接點交錯。 9. 一種袋子，該袋子係由單軸拉伸聚合物帶之織物製成， 尤其是聚烯烴帶或聚丙烯帶’該袋子在一個或兩個側邊 被閉合，其中，至少一個閉合側邊包括翻轉端部段（5 )， 該翻_端部段（5)只與面向該翻轉端部段（5)之袋體〇) 之織物層（4)連結，尤其是經由超音波炼接。 10. 如申請專利範圍第9項所述之袋子，其中，分隔層 被插入至該袋體（1)或被塗覆，以避免面向該翻轉端部 段（5)之該袋體（1)之織物層（4)與背向該翻轉端部段（5) 之該袋體（1)之織物層（3)熔接在一起。 11·如申請專利範圍第1〇項所述之袋子，其中’該分隔層 (8)比該袋子織物具有較高之熱傳導性。 12,如申請專利範圍第9項至第11項中任一項所述之袋 子’其中’從該翻轉所致為最上層之織物層（7)開始， 精確地藉由使用超音波熔接而彼此連結直接疊置在彼 此之頂部之數層織物層（7、6、4)，該超音波熔接之次 數對應於該等織物層總層數之一半再加一。 13·如申請專利範圍第9項至第12項中任一項所述之袋 子’其中’該超音波熔接（12)包括彼此分隔之數個熔接 點（13)。 14.如申請專利範圍第13項所述之袋子，其中，該等熔接 2 95036 201134648 點（13)配置成多列，藉以使在一列中的該等熔接點（13) 與相鄰列中的該等熔接點（13)交錯。 15. —種閉合袋體之裝置，該袋體係由單軸拉伸聚合物帶之 織物製成，尤其是聚烯烴帶或聚丙烯帶，尤其是用於執 行如申請專利範圍第1項至第8項中任一項所述之方 法，包括送料裝置，用以將該袋體（1)送至密封站台， 其中，該密封站台包括超音波熔接站台（9、10)。 95036201134648 201134648 VII 1. Patent application scope: - A method for closing a bag body, which is made of a single sister fabric, especially a poly-smoke tape or a polypropylene tape, 1: to a small fabric layer along Extending through the gap _ ^ of the width of the bag, the seam is made into a seam, so that the welding step of the sound wave is connected.匕3 to 乂 one super 2. The tang end section described in item 1 of the patent application is turned over or folded, and the flat flat end section of the pingping ', the middle body includes one open end ' And wherein the supersonic end segment and the ultrasonic wave of the bag are melted. The method of claim 2, wherein the (four) segment is fused to the fabric layer of the bag body of the inverted end portion. 4. The method of claim 2, wherein the splitting or coating is applied to avoid the fabric layer of the garment facing the inverted end section and facing away from the inverted end section. The fabric layers of the bag are welded together. 5. The method of claim 4, wherein the partition layer is coated by a coating process. 6. The method of any one of clauses 2 to 5, wherein the beginning of the fabric layer from the top layer is precisely connected to each other by ultrasonic welding. The number of layers of the fabric layer superimposed on top of each other 'the number of ultrasonic fusions corresponds to one-half of the total number of layers of the fabric layers plus one. 7. The method of any one of claims 1 to 6, wherein the ultrasonic welding is used to generate a plurality of splice points separated from each other. 8. The method of claim 7, wherein the fusion splices are arranged in a plurality of columns </ RTI> such that the weld points in one column are interleaved with the weld points in adjacent columns. 9. A bag made of a fabric of a uniaxially stretched polymeric tape, in particular a polyolefin tape or a polypropylene tape 'the bag being closed on one or both sides, wherein at least one closed side Including the inverting end section (5), the turning end section (5) is only joined to the fabric layer (4) facing the bag body of the inverting end section (5), in particular via ultrasonic welding. 10. The bag of claim 9, wherein a separating layer is inserted into the bag (1) or coated to avoid the bag facing the inverted end section (5) (1) The fabric layer (4) is welded to the fabric layer (3) of the bag (1) facing away from the inverted end section (5). 11. The bag of claim 1 wherein the spacer layer (8) has a higher thermal conductivity than the bag fabric. 12. The bag of any one of claims 9 to 11, wherein the beginning of the fabric layer (7) resulting from the turning is the highest layer, precisely by using ultrasonic welding. The plurality of layers of fabric (7, 6, 4) directly joined to the top of each other are joined, and the number of times of ultrasonic welding corresponds to one-half of the total number of layers of the fabric layers plus one. 13. The bag of any one of claims 9 to 12 wherein the ultrasonic welding (12) comprises a plurality of welded joints (13) separated from each other. 14. The bag of claim 13 wherein the welds 2 95036 201134648 points (13) are arranged in a plurality of columns whereby the weld points (13) in a column are adjacent to the adjacent columns The weld points (13) are staggered. 15. A device for closing a bag body, the bag system being made of a fabric of a uniaxially stretched polymer tape, in particular a polyolefin tape or a polypropylene tape, in particular for carrying out the first to the first The method of any of the preceding claims, comprising a feeding device for feeding the bag (1) to a sealing station, wherein the sealing station comprises an ultrasonic welding station (9, 10). 95036
TW099137587A 2009-11-02 2010-11-02 Method of closing a sack body TW201134648A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA1733/2009A AT508982B1 (en) 2009-11-02 2009-11-02 METHOD FOR CLOSING A BAG

Publications (1)

Publication Number Publication Date
TW201134648A true TW201134648A (en) 2011-10-16

Family

ID=43245009

Family Applications (1)

Application Number Title Priority Date Filing Date
TW099137587A TW201134648A (en) 2009-11-02 2010-11-02 Method of closing a sack body

Country Status (3)

Country Link
AT (1) AT508982B1 (en)
TW (1) TW201134648A (en)
WO (1) WO2011050380A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112497844A (en) * 2013-06-05 2021-03-16 环美有限公司 Method for producing fabric bags or containers using heat-welded seams

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2730393B1 (en) 2012-11-07 2020-01-15 Borealis AG Sealing oriented films
DE102013100131A1 (en) * 2013-01-08 2014-07-10 Windmöller & Hölscher Kg Method of making sacks

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1010324A (en) * 1961-01-17 1965-11-17 Internat Ultrasonics Inc Improvements in or relating to methods of welding together layers of plastic material, apparatus for use in such method and the article produced thereby
NL278659A (en) * 1961-11-07 1900-01-01
NL301691A (en) * 1962-12-14
US3422596A (en) * 1965-06-07 1969-01-21 Grace W R & Co Heat sealing apparatus
NL6601866A (en) * 1966-02-14 1967-08-15
US3535184A (en) * 1967-07-12 1970-10-20 Avisun Corp Method of bonding overlapping pieces of oriented plastic having low power factor losses
US3496059A (en) * 1969-02-28 1970-02-17 Phillips Petroleum Co Laminated oriented film material and method of producing the same
US4373979A (en) * 1980-09-26 1983-02-15 Workman Bag Company Ltd. Sealed bags of plastic materials
US4558463A (en) * 1984-07-31 1985-12-10 Mobil Oil Corporation Hem seal for draw tape trash bag
AT400831B (en) 1994-05-04 1996-03-25 Starlinger & Co Gmbh SACK OF POLYMER, ESPECIALLY POLYOLEFINE FABRIC AND METHOD FOR THE PRODUCTION THEREOF
ES1046739U (en) * 2000-07-24 2001-01-16 Daumar Talleres Bag with handle for packing bulk products
US6641882B1 (en) * 2000-11-27 2003-11-04 Daiwa Gravure Co., Ltd. Packaging bag
AT9823U1 (en) * 2007-09-10 2008-04-15 Starlinger & Co Gmbh COATED FABRIC FROM MONOAXALLY SUPPRESSED PLASTIC BELTS AND SACK THEREFOR
ATE498558T1 (en) * 2008-01-10 2011-03-15 Daumar Talleres PLASTIC MESH BAG

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112497844A (en) * 2013-06-05 2021-03-16 环美有限公司 Method for producing fabric bags or containers using heat-welded seams
CN112497844B (en) * 2013-06-05 2023-05-23 环美有限公司 Method for producing fabric bags or containers using heat-fused seams

Also Published As

Publication number Publication date
AT508982A1 (en) 2011-05-15
WO2011050380A1 (en) 2011-05-05
AT508982B1 (en) 2013-03-15

Similar Documents

Publication Publication Date Title
JP3290439B2 (en) Bags made of polymers, especially polyolefin fabrics, and their manufacturing process
JP5391200B2 (en) Method for bonding coated fabric and use of coated fabric
TWI532554B (en) Sack and method of closing a sack body
WO2013002148A1 (en) Sealed package body, and method and apparatus for producing same
JPS60500763A (en) How to form a tearable pouch
JP6544935B2 (en) Packaging bag for microwave oven and bag making method
BR112018004140B1 (en) Method of forming a tube of polymeric material
JP6326523B2 (en) Method for forming bag body and bag body
KR20100099709A (en) Edge face structure of laminated film, method of processing edge face, liquid ejection nozzle with processed edge face, and process for producing the same
WO2017047573A1 (en) Bag body provided with zipper tape, bag body, method for producing bag body, and device for producing bag body
CN105934391A (en) Gusset bag, method for producing gusset bag, and method for joining laminate
CN104603016A (en) Seal top bag with adhesive tape
JP2012245990A (en) Packaging bag
TW201134648A (en) Method of closing a sack body
JP2017217764A (en) Packaging bag sealing method and packaging bag
CN103889847A (en) Method for closing a tubular sack body
JPH03197033A (en) Preparation of multi-layered paper bag internally laminated with synthetic resin thin cylindrical bag
JP2013533140A (en) COMPOSITE FILM, METHOD FOR PRODUCING COMPOSITE FILM, METHOD FOR PRODUCING FILM BODY COMPRISING AT LEAST ONE COMPOSITE FILM, AND APPARATUS FOR PRODUCING COMPOSITE FILM
JP2005014508A (en) Connecting structure of packaging film and its connecting method
JP6864215B2 (en) Easy-to-open gusset bag with tape insertion
JP2017088238A (en) Gazette bag with spout and production method thereof
JP2008056345A (en) Bag with fastener and its manufacturing method
JP2015093692A (en) Easily-open pillow packaging bag
JP6944864B2 (en) Manufacturing method of packaging bag and film used for manufacturing packaging bag and packaging bag
JPH0566861B2 (en)