CN103097248B - 包括旋转式夹紧装置的包装设备和制作包装袋的方法 - Google Patents

包括旋转式夹紧装置的包装设备和制作包装袋的方法 Download PDF

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Publication number
CN103097248B
CN103097248B CN201180043650.9A CN201180043650A CN103097248B CN 103097248 B CN103097248 B CN 103097248B CN 201180043650 A CN201180043650 A CN 201180043650A CN 103097248 B CN103097248 B CN 103097248B
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CN
China
Prior art keywords
cutter
strip
sealing
anvil
support
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Expired - Fee Related
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CN201180043650.9A
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English (en)
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CN103097248A (zh
Inventor
马克·蒂利
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Frito Lay Trading Co GmbH
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Frito Lay Trading Co GmbH
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Classifications

    • 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
    • B31B70/642—Uniting opposed surfaces or edges; Taping by applying heat or pressure using sealing jaws or sealing dies
    • 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
    • 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
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/56—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/62—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/56—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/62—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder
    • B26D1/626—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/27—Means for performing other operations combined with cutting
    • 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
    • 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
    • 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
    • B29C65/743—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 the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • 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
    • 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
    • B29C66/1122—Single lap to lap joints, i.e. overlap 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
    • B29C66/40—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
    • 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
    • B29C66/43129—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams said flat seams being transversal but non-orthogonal with respect to the tubular or hollow articles, i.e. oblique
    • 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
    • B29C66/81—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
    • B29C66/81433—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 being toothed, i.e. comprising several teeth or pins, or being patterned
    • B29C66/81435—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 being toothed, i.e. comprising several teeth or pins, or being patterned comprising several parallel ridges, e.g. for crimping
    • 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
    • B29C66/8145—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81457—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a block or layer of deformable material, e.g. sponge, foam, rubber
    • 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
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/99—Making rigid or semi-rigid containers, e.g. boxes or cartons using hand tools
    • 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
    • B65B51/16—Applying or generating heat or pressure or combinations thereof by rotary members
    • 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
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/306—Counter-rotating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/207—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web advancing continuously
    • 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
    • B29C66/81417—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 being V-shaped
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it

Abstract

本发明提供了一种包括旋转式夹紧装置（110）的包装设备，所述的旋转式的夹紧装置包括长条状的支架（121），安装在所述的长条状的支架上并从所述长条状的支架向外突出的长条状的刀（112），所述的刀具有平行于所述的刀的平面的长条状的切削刃（120），以及热封口装置（126,128）的至少一部分，所述热封口装置位于所述长条状的支架上的所述刀的两侧。同时，本发明还提供了一种包装方法。

Description

包括旋转式夹紧装置的包装设备和制作包装袋的方法
技术领域
本发明涉及包括旋转式夹紧装置的包装设备和制作包装袋的方法。
背景技术
众所周知使用立式成型-充填-封口(VFFS)包装设备可以生产包装袋，形式上可以是袋子，枕形袋或食品袋产品，如零食。将纵向已被封口的由热封塑料材料的包装薄膜卷形成的管状薄膜间歇式送入夹紧装置中。在所述的夹紧装置处所述的薄膜形成扁平状的管。所述的夹紧装置形成一对垂直间隔开的横跨所述的管的密封的热封口，所述的封口位于垂直相邻的包装袋之间。夹紧装置还切断位于该密封的封口之间的贯穿所述管的中间部分，这样将含有已被包装的产品的已被密封的下包装袋与未封口的上包装袋分开。
以这样方式，已被密封的下面的封口成为下包装袋的上封口，而已被密封的上面的封口成为上包装袋的下封口。然后上包装袋被填充产品，管子向下前行通过夹紧装置，然后当上包装袋的上边缘和下一个包装袋的下边缘位于夹紧装置的钳口之间时重复上述循环。
立式成型-充填-封口(VFFS)包装设备的这类夹紧装置的工作原理已知有多种。一类的夹紧装置使用连续的旋转式夹紧运动模式，参考图1和2进行说明。
参考图1，在这样的一种夹紧装置10中，刀12位于扁平的纵向密封的管14的一侧，而在管14的另一侧放置一个坚硬的作用衬垫或砧16，其中管位于刀12和砧16之间。在与砧16的压力作用下促使刀12切断管14的薄膜，通过压挤切割作用使刀片18和砧16之间的管14的薄膜断开。
刀12和砧16同步并按图1中的箭头所示的相反的旋转方向进行旋转以使刀12和砧16咬合以切断位于其中间的其形式是如下所述的扁平的管的包装膜材料。
刀12围绕X轴旋转，X轴与管14的纵向L垂直且平行于砧16的表面和刀片18的切削刃20。尽管没有表示出来，但是可将多个刀12安装在沿X轴放置的同一个轴上并且相互之间以一定的角度间隔开，以便于对于同一个轴上的每一个旋转周期来说，由不同的刀12形成多个切口。同时相应的提供多个砧16。
同样如图2和3中所示的，长条状的刀12被安装在安装架形式的长条状的支架21上。为了清楚说明，在图2和3中对一些尺寸和角度进行了放大。
刀12的底部容纳在长条状的支架21的长条状的槽30中并将其牢固固定在其中。刀12的切割动作是渐进式的以便于在支架21中的刀12的连续旋转期间，开始时刀12的一个纵向末端22首先接触砧16，并随后二者之间的接触点沿刀片18的切削刃20向刀12的另一个纵向末端24前进。为了实现这种渐进式的切割动作，如图2和3所示，刀片18的切削刃20以与刀12的平面呈角度α的方向进行研磨。一般的，角度α是2度。因此，当旋转接触进行时，扁平的管14的整体的宽度不是同时被切开，而是刀片18的接触点随着旋转动作的进行逐渐通过管14。这种渐进式的切割动作类似于滚筒式草坪机的旋转式刀片的切割动作。
长条状的热封口装置26，28位于砧16中和/或刀的长条状支架21中以便于在扁平管14的横向切口36的两侧形成密封封口32，34，其中横向切口36是由刀12形成的。热封口装置26,28可采用多种形式，一般是横向延伸的在砧16和长条状的支架21的相对表面中形成的匹配的隆起和凹槽。
如图2所示，刀12和热封口装置26，28相互平行并且也平行于长条状支架21的侧面40，42，其中长条状支架21与纵向L的方向垂直。因此，当纵向的方向是传统的垂直方向时，刀12和热封口装置26，28是水平的。
现在已知的旋转式的夹紧装置提供有效的热封口和切割机器，这样可以在包装袋的相对末端可靠地形成密封的封口并通过刀的作用使相邻的包装袋被可靠地分隔开。
然而，生产商越来越希望能降低与其产品有关的包装材料的使用量，特别是不仅降低包装材料和/或包装过程中的包装成本而且还要降低碳排放，用二氧化碳排放的吨数表示。
现有的旋转式的夹紧装置在管的纵向形成的密封的封口相对较宽，并且在相邻的密封的封口之间也存在材料的浪费，这是因为必须在相邻的密封的封口之间提供由刀的旋转切割动作进行切断的管的一部分薄膜材料。
因此，本领域需要一种用于包装设备中的旋转式夹紧装置，以及一种制作包装袋的方法，可允许降低包装材料的用量同时降低相关的包装成本和碳排放，即二氧化碳排放，同时在包装袋的相对两端仍然能够获得有效的密封的封口。
发明内容
本发明的目的至少可以部分满足这一需要。
因此，本发明提供了一种包括旋转式夹紧装置的包装设备，所述的旋转式夹紧装置包括长条状的支架，安装在所述的长条状的支架上并从所述长条状的支架向外突出的长条状的平面的刀，所述的刀具有平行于所述的刀的平面的长条状的切削刃，和位于刀的两侧的长条状支架上的热封口装置。
可选的，所述的支架安装在能围绕旋转轴旋转的安装架上，刀的平面向旋转轴倾斜。
一般的，切削刃沿刀的中心延伸。
在一个实施例中，刀具有1到3mm的厚度，可选择的，约2mm。
优选，热封口装置包括从长条状的支架向外突出的长条状的压紧板，具有两块压紧板，每一块沿刀的各自的侧面延伸。
压紧板包括由弹性材料制成的板。
旋转式夹紧装置还包括安装在长条状的支架对面的砧，以使长条状的支架和砧包括回旋转式夹紧装置的相对的爪，所述的砧具有作用表面以用于刀的切割作用。
优选的，刀和砧相互排列以便于当刀随着长条状的支架旋转而旋转时，刀的切削刃逐渐接触作用表面，其间的接触点沿切削刃纵向移动。
可选的，砧包括加热器以用于加热作用表面。
一般的，旋转式夹紧装置适用于形成由薄膜材料制成的枕形包装袋，可选地所述的包装袋用于包装零食。
本发明进一步提供了一种制作包装袋的方法，所述的方法包括如下步骤：a.提供包装膜构成的扁平的管；b.使扁平的管的一部分位于旋转式夹紧装置和砧之间，所述的旋转式夹紧装置具有长条状的平面的刀，它具有平行于刀的平面的长条状的切削刃；c.使所述的旋转式夹紧装置围绕旋转轴旋转，所述刀的平面向旋转轴倾斜；和d.在刀的切割作用下将旋转式夹紧装置和砧的作用表面之间的扁平的管的部分进行切割，刀和砧相互排列以便于当刀旋转时，刀的切削刃与作用表面逐渐接触以使其间的接触点沿切削刃纵向移动。
可选的，切削刃沿刀的中心延伸。一般的，刀的厚度为1至3mm，可选地约2mm。
优选的，旋转式夹紧装置和砧包括热封口装置，可同时将扁平的管的相对两侧热封在一起以在扁平管的每一个被切开的末端附近形成长条状的横向密封的封口。
可选的，热封口装置包括两块长条状的压紧板，每一块压紧板沿刀和加热的砧的各自的侧面延伸。压紧板可包括弹性材料制成的板。
优选的，每个包装袋的被切开的边距离热封口是0.5至1.5mm，一般约是1mm。
优选的，密封的封口具有1至4mm的宽度，可选1至2mm。
一般的，包装袋是薄膜材料制成的枕型袋，可选的，所述包装袋含有零食。
本发明进一步提供了由本发明的方法制作的包装袋。
附图说明
下面将通过参考附图以举例的方式来描述本发明的实施例，其中，
图1是用于包装设备的已知的旋转式夹紧装置的侧面示意图；
图2是在图1中的已知的旋转式夹紧装置中使用的刀组件的平面示意图；
图3是在图1中的已知的旋转式夹紧装置中使用的刀的透视示意图；
图4是根据本发明的一个实施例的用于包装设备的旋转式夹紧装置的侧面示意图；
图5是在图4中的旋转式夹紧装置中使用的刀组件的平面示意图；
图6是在图4中的旋转式夹紧装置中使用的刀的透视示意图；和
图7是由图4中的旋转式夹紧装置制作的一对包装袋的侧面示意图。
具体实施方式
图4至6表示了根据本发明用于包装设备的旋转式夹紧装置的优选实施例，其具有连续的旋转式夹紧运动模式。该装置的结构和工作方式与图1-3中的已知的装置类似，不同的是安装架和刀的结构被显著改进，以实现所希望的降低形成包装袋所需要的包装材料的用量。刀和砧同步旋转并以图4中箭头所示的相反旋转方向旋转以便于刀和砧咬合从而将位于其间的包装材料切断。
在图4的夹紧装置110中，刀112位于用以形成包装袋的由包装膜构成的扁平的纵向已被封口的管114的一侧，与图1-3中所示的已知的装置相似。坚硬的作用衬垫或砧116位于管114的另一侧，其中管114位于刀112和砧116之间。在与砧116的压力作用下刀112切割管114的薄膜，通过压挤切割动作使刀片118和砧116之间管114的薄膜分离开。
刀112围绕X轴旋转，X轴垂直于管114的纵向L并平行于砧116的表面和刀片118的切削刃120。夹紧装置110围绕X轴安装，例如通过安装支架111安装在沿X轴的一个轴上。
特别是在图5和6中显示的，长条状的刀112安装在安装架形式的长条状支架121上。为了清楚说明，在图5和6中一些尺寸和角度被放大。
刀112的下部容纳在长条状的支架121中的长条状的槽130中，并被牢固固定在其中。刀112的切割作用是渐进式的，以便于开始时刀112的一个纵向末端122首先接触砧116，并随后接触点沿刀片118的切削刃120逐渐向刀112的另一纵向末端124前进。
为了实现这样的渐进式的切割动作，如图5和6所示的，刀112以与长条状支架120的纵向呈β的角度被安装。刀片118的切削刃120被研磨以与刀112的平面平行。一般的，β的角度是2度。
长条状的热封口装置126,128被置于砧116和/或刀的长条状支架121中以便于在扁平的管114的横向切口136相对两侧形成横向密封的封口132,134，其中横向切口136由刀112产生。在所示的实施例中的装置内，砧116是加热的方块，长条状的压紧板126，128，例如由弹性材料如热弹性橡胶构成，分别被置于刀112的相对的两侧上。刀112和压紧板126，128高出于长条状的支架121的安装表面138。
长条状压紧板126，128平行于刀112，因此长条状的压紧板126，128也以与长条状的支架121的纵向方向呈β角的方向被安装。刀112和压紧板126，128因此以与长条状支架121的纵面呈β角的方向倾斜，其中长条状支架121与纵向L垂直。因此，当纵向的方向是垂直方向时，刀112和压紧板126，128与水平方向呈β角。
当旋转接触前进时，扁平的管114的整个宽度没有被同时切断，相反随着旋转作用的进行，刀片118的接触点逐渐通过管114。压紧板126，128局部性地向加热的砧116挤压管114的薄膜材料以形成两个间隔开的密封的封口132，134。
一般的，刀的宽度(在图5和6中所示的尺寸a)是1到3mm，最通常的是2mm，并且，切削刃120位于刀112的刀片118的整个长度的中心。
相反，在图1至图3所示的已知的装置中，由于切削刃20向刀12的平面倾斜，因此刀12的宽度(图2和3所示的尺寸y)必须比在本发明中的使用的刀112的宽度大很多，一般5mm，才能满足刀片中切削刃的倾斜。在本发明的装置的刀中不需要这样的倾斜。相反，刀112的切削刃120和平面是平行的，这不但降低了刀片的厚度而且还使刀的操作更容易。
与现有装置中提供的具有倾斜刀片的平行安装的刀不同，本发明的装置提供了具有平行的中心刀片的倾斜安装的刀。由于长条状的压紧板126，128平行于刀112，所以刀112的全部组件和位于其相对两侧的长条状压紧板126，128以向长条状支架121的纵向倾斜的方式被安装。
设置长条状的由弹性材料构成的压紧板126,128所提供的优势是以最小的宽度获得高强度的封口，其中压紧板126,128与具有平的表面的坚硬的加热的砧相互作用。压紧板126,128在较小的表面区域施加较高压力，从而提供的热封口比在较大的宽度上的较低压力提供的封口更强。因此，与较宽的封口相比较窄的热封口可提供改进的密封性能和持久性。
一般的，刀112的组件和长条状的压紧板126，128的总的宽度是8mm，全部向长条状的支架121的纵向方向倾斜，而在现有的装置中，刀112的组件和热封口装置26,28的总的宽度是20mm，全部平行于长条状支架21的纵向。
在图7中示出了刀的结构和方向的变化所产生的结果。
图7表示了两个相邻的包装袋200，202，它们已被刀112形成的切口分隔开。每个包装袋200，202都具有被切开的横边204，206，所述横边以与包装袋200，202的纵向呈β角的方向倾斜(图中是放大的)。所述的角度非常小以至于通常不被消费者注意到。在每个包装袋200，202的末端提供形成密封的封口208,210的热封口。与切开的横边204,206相邻的未被封口最末端部分212，214的宽度相当于刀的厚度的一半。因此，未被封口的最末端部分212，214一般具有0.5到1.5mm的厚度，最典型的是1mm，这可以与图1至3中的已知的装置生产的对应的未被封口的最末端部分具有的2.5mm的典型厚度相对比。
因此，对于根据本发明的实施例生产的每个包装袋来说，在对热封口的安全性没有任何影响的情况下通常可节省3mm长的包装膜材料。
这种材料的节省是通过降低包装袋末端未被封口的材料的用量实现的，这部分对于形成密封的封口来说没有作用。
此外，通过使用特定的抵靠在加热的砧的压紧板使得热封口比现有的热封口更窄，从而大大节省了包装材料。一般的，热封口具有1mm到4mm的宽度，可选为1到2mm。
这种薄膜材料的节省对于大量生产产品（如零食）具有潜在的巨大的影响。
申请人和其相关的公司组成了世界上一家最大的零食公司中的一部分，据估测这种包装材料的节省的累积量相当于全球的包装材料成本每年节省数千万美元，更重要的是，每年节省约1.6万吨的二氧化碳的产生。本发明因此能够显著降低包装各种产品（特别是零食）产生的碳排放。
本领域技术人员非常清楚上述举例中的角度和尺寸仅仅是说明根据本发明可以使用的角度大小和尺寸，并且这些参数可根据各种因素（包括包装袋的大小，形状和尺寸）被改变。
本发明的夹紧装置和方法可用于生产各种产品的主包装袋，其中零食仅是优选的实例。所述的夹紧装置和方法也可用于生产副包装袋，例如多袋的包装。
正如上面所述的已知的装置，在本发明的装置中，可将多个刀安装在沿旋转轴设置的一个公共轴上，并相互间以一定的角度隔开，以便于对于该公共轴的每一次循环来说，由各自的刀制作多个切口，并且相应的多个包装袋被该轴上的每一次的旋转周期的切割作用分离开。相应地提供多个砧。
在可替换的实施例中，热封口装置可以是折边装置，和/或完整组件（即长条状的支架和/或砧）的一个或两个侧面，可被加热。而且，长条状的热封口装置可被设置在砧和/或刀的长条状的支架内。
对于本领域技术人员来说，还可以对在此记载的本发明的实施例进行其他的改进。

Claims (21)

1.一种包括旋转式夹紧装置的包装设备，所述的旋转式夹紧装置包括长条状的支架，安装在所述的长条状的支架上并从所述长条状的支架向外突出的长条状的平面的刀，所述的刀具有平行于所述的刀的平面的长条状的切削刃，所述的支架被安装在能围绕旋转轴旋转的安装架上，所述的刀的所述的平面向所述的旋转轴倾斜,以及位于所述长条状的支架上的所述刀的相对两侧的热封口装置。
2.根据权利要求1所述的包装设备，其中，所述的切削刃沿所述刀的中心延伸。
3.根据权利要求2所述的包装设备，其中，所述的刀具有1mm到3mm的厚度。
4.根据权利要求1至3中的任一项所述的包装设备，其中，所述的热封口装置包括从所述的长条状的支架向外突出的长条状的压紧板，所述的压紧板有两块，每一块压紧板沿所述刀的各自的侧面延伸。
5.根据权利要求4所述的包装设备，其中，所述的压紧板包括由弹性材料制成的板。
6.根据权利要求1至3中的任一项所述的包装设备，还包括安装在所述的长条状支架对面的砧，以使所述的长条状的支架和所述的砧包括所述的旋转式夹紧装置的相对的爪，所述的砧具有作用表面以用于所述的刀进行切割动作。
7.根据权利要求6所述的包装设备，其中，所述的刀和所述的砧相互排列以便于当所述的刀随着所述的长条状的支架的旋转而旋转时，所述的刀的所述的切削刃逐渐接触所述的作用表面以使其间的接触点沿所述的切削刃纵向移动。
8.根据权利要求6所述的包装设备，其中，所述的砧包括用于加热所述作用表面的加热器。
9.根据前述任一项权利要求所述的包装设备的用途，其中所述的包装设备用于制作薄膜材料形成的枕型袋。
10.一种制作包装袋的方法，所述的方法包括如下步骤：
a.提供包装膜形成的扁平的管；
b.使所述的扁平的管的一部分位于旋转式夹紧装置和砧之间，所述的旋转式夹紧装置具有长条状的平面的刀，所述的长条状的平面的刀具有平行于所述的刀的平面的长条状的切削刃；
c.使所述的旋转式夹紧装置围绕旋转轴旋转，所述刀的平面向所述旋转轴倾斜；和
d.在所述刀的切割作用下将所述旋转式夹紧装置和所述砧的作用表面之间的扁平的管的部分进行切割，所述刀和所述砧相互排列以便于当所述刀旋转时，所述刀的切削刃与所述作用表面逐渐接触以使其间的接触点沿所述切削刃纵向移动。
11.根据权利要求10所述的方法，其中，所述的切削刃沿所述刀的中心延伸。
12.根据权利要求11所述的方法，其中，所述的刀具有1mm到3mm的厚度。
13.根据权利要求10所述的方法，其中，所述的旋转式夹紧装置和所述的砧包括热封口装置，所述的热封口装置同时将所述的扁平的管的相对两侧热封在一起从而在所述的扁平的管的每一个被切开的末端的附近形成长条状的横向密封的封口。
14.根据权利要求13所述的方法，其中，所述的热封口装置包括两块长条状的压紧板，每一块压紧板沿所述的刀和被加热的砧的各自的侧面延伸。
15.根据权利要求14所述的方法，其中，所述的压紧板包括由弹性材料制成的板。
16.根据权利要求13至15中的任一项所述的方法，其中，每个包装袋的被切开的边距离所述的密封的封口是0.5mm至1.5mm。
17.根据权利要求16所述的方法，其中，每个包装袋的被切开的边距离所述的密封的封口约1mm。
18.根据权利要求13至15中的任一项所述的方法，其中，所述的密封的封口的宽度是1mm至4mm。
19.根据权利要求18所述的方法，其中，所述的密封的封口的宽度是1mm至2mm。
20.根据权利要求10至15中的任一项所述的方法，其中，所述的包装袋是薄膜材料形成的枕型袋。
21.根据权利要求20所述的方法，其中，所述的包装袋中含有零食。
CN201180043650.9A 2010-08-12 2011-08-12 包括旋转式夹紧装置的包装设备和制作包装袋的方法 Expired - Fee Related CN103097248B (zh)

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