WO2018023204A1 - 一种保温包生产方法 - Google Patents

一种保温包生产方法 Download PDF

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Publication number
WO2018023204A1
WO2018023204A1 PCT/CN2016/000681 CN2016000681W WO2018023204A1 WO 2018023204 A1 WO2018023204 A1 WO 2018023204A1 CN 2016000681 W CN2016000681 W CN 2016000681W WO 2018023204 A1 WO2018023204 A1 WO 2018023204A1
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WO
WIPO (PCT)
Prior art keywords
bag
thermal insulation
welded
cover
inner bag
Prior art date
Application number
PCT/CN2016/000681
Other languages
English (en)
French (fr)
Inventor
骆炳华
Original Assignee
骆炳华
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Filing date
Publication date
Application filed by 骆炳华 filed Critical 骆炳华
Priority to US15/549,836 priority Critical patent/US10486882B2/en
Publication of WO2018023204A1 publication Critical patent/WO2018023204A1/zh

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    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/0406—Rigid containers in preformed flexible containers
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3813—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container
    • B65D81/3818—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container formed with double walls, i.e. hollow
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3813—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container
    • B65D81/3823—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container formed of different materials, e.g. laminated or foam filling between walls
    • 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
    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/62—Stitching
    • 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
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/782—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7855—Provisory fixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • 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
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • 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
    • 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
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D2581/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D2581/051—Details of packaging elements for maintaining contents at spaced relation from package walls, or from other contents
    • B65D2581/052—Materials
    • B65D2581/055—Plastic in general, e.g. foamed plastic, molded plastic, extruded plastic

Definitions

  • the invention relates to a method for producing a heat preservation package, which is used for the fields of cold chain logistics, product preservation, heat preservation, constant temperature preservation and the like.
  • the thermal insulation package is of both steel and flexible.
  • the flexible thermal insulation package generally comprises an active connection body and a cover.
  • the package comprises an inner bag, an outer bag and an insulation layer, and the inner bag is provided with an upper opening and a cavity having a volume, the outer bag is provided with an upper opening and has a larger cavity than the inner bag, and the heat insulation layer is disposed between the inner bag and the outer bag for separating between the inner bag and the outer bag
  • the heat insulating layer has an integrated front side wall, a rear side wall, a left side wall, a right side wall and a lower side wall, and the cover is composed of an upper cover, a lower cover and a heat insulating material layer.
  • the cover and the outer side wall of the lower cover are fixedly connected, and the cover heat insulating material layer is disposed between the upper cover and the lower cover, and the cover body and the cover are generally detachably connected by a zipper or a buckle device.
  • the flexible thermal insulation package is waterproof and non-waterproof.
  • the components of the non-waterproof thermal insulation package are generally connected by sewing seams.
  • the entire thermal insulation package has a relatively regular shape and is relatively convenient to manufacture. Of course, the disadvantage is that it is not waterproof. For the waterproof and thermal insulation package, each component material needs to be welded by high frequency. Referring to FIG.
  • the outer bag 1' and the inner bag 2' of the package body are welded at the time of the insulation layer 3' because the insulation layer 3' has a certain thickness and cannot be welded to the insulation layer.
  • it has a certain distance L from the upper surface of the thermal insulation layer, so that when the cover 5' is placed on the package body, since the zipper 4' and the distance L have no bearing strength, the entire thermal insulation package is irregular in appearance.
  • the distance L does not have the heat preservation function, the heat exchange is greatly increased in the zipper 4' and the distance L portion, and the heat preservation effect is greatly restricted, so it is necessary to further optimize the heat preservation effect of the existing heat preservation package.
  • U.S. Patent No. 9,913,352 B2 issued Sep.
  • the production process of the heat-insulating package includes: cutting the sheet material and preparing the assembly---welding the bag cover (The welding of the flap sheet and the waterproof zipper together)---welding the inner bag (welding the inner bag to form a single piece)---welding the bag cover and the inner bag into one---welding outer bag- --Preparation (installation) of the insulation layer---Insert the insulation layer into the outer bag---Insert the inner bag into the inner side of the insulation layer---separate the bag cover and the outer bag into one body, and finally obtain the waterproof and heat insulation package
  • the waterproof and heat-insulating package does not have a heat-insulating layer, so that heat is easily exchanged with the outside through the cover portion, resulting in poor heat preservation effect. Therefore, for the waterproof and thermal insulation package with the insulation layer of the package body and the cover cover, how to reduce the heat transfer in the detachable connection portion of the package body and the cover cover is
  • the object of the present invention is to provide a method for producing a thermal insulation package having a more uniform appearance and a smaller heat transfer.
  • a method for producing a heat preservation package comprising the following steps:
  • the thermal insulation layer is placed on the inner bag of the thermal insulation bag, and then placed in the outer bag of the thermal insulation package, and the upper side edge of the inner bag of the thermal insulation package and the outer bag of the thermal insulation package are welded together;
  • the upper side of the heat preservation bag cover and the outer bag of the heat preservation bag are shaped by a glue, and then welded to obtain an insulation package.
  • the step b includes the following specific steps:
  • a rectangular thermoplastic fabric is opened along its length to form a zipper groove, and then the longitudinal sides thereof are welded to form a periphery of the inner bag, and the outer periphery of the inner bag has a peripheral upper edge piece located above the zipper groove and below the zipper groove. The lower edge of the periphery;
  • the outer periphery of the inner bag is passed through the inner side of the mold one and the outer lower edge piece is folded outward on the outer side of the mold one, and the inner bag top piece is placed on the outer lower edge of the piece and welded together;
  • the inner side of the inner bag is passed through the inner side of the mold 2 and folded outward on the outer side of the mold 2, and the inner bag top piece and the inner bag in the obtained product of step b2 are welded together.
  • the peripheral lower edge piece and the inner bag circumference are respectively located on the same side of the inner bag top piece;
  • step b4 the inner bag top piece in the product obtained in step b4 is cut off at the portion covered by the inner bag circumference;
  • thermoplastic fabric is covered in the bottom edge of the inner bag of the product obtained in step b5 and welded into a system to obtain the inner bag of the heat preservation bag.
  • step a of the method for producing a thermal insulation package comprises the following specific steps:
  • thermoplastic fabric is placed on one side of the bag cover and welded to complete the cover bottom;
  • the cover of the product is filled with a layer of thermal insulation material
  • thermoplastic fabric is placed over the layer of insulating material and welded integrally with the bag cover;
  • step a4 the product obtained in step a4 is fixedly integrated with the flat outer bag cover;
  • a heat-insulating bag cover is prepared by wrapping a layer of thermoplastic fabric on the outer side of the product obtained in the step a5.
  • step c of the method for producing a thermal insulation package comprises the following specific steps:
  • the outer bag accessories are sewn on the thermoplastic small piece fabric, and then the thermoplastic small piece fabric is welded on the outer bag circumference, and the two chain belts of the waterproof zipper are respectively welded on both sides of the outer bag zipper groove;
  • the bottom of the bag is bonded and shaped by the glue along the lower side of the outer bag, and then welded into one body;
  • the waterproof zipper is opened, and the outer edge of the outer edge of the outer edge of the sheet is wrapped around the outer bag or the outer bag of the outer bag.
  • the strips are welded together, and the outer periphery is integrally welded along the inner side of the outer bag or the chain belt above the outer bag zipper groove.
  • the beneficial effects of the present invention are: the invention fundamentally changes the conventional production method of the bag in the existing heat preservation bag, that is, the inner bag top piece is welded with the inner bag outer periphery first, and then The bag is welded, so that an inner bag platform for interfacing with the bag cover is formed between the outer bag outer periphery and the inner bag periphery and the inner bag top sheet. After the inner bag platform is inserted under the heat insulating layer, the inner bag platform receives the bag cover.
  • the pressure is more expressed by the tension and external force after the waterproof zipper is closed, so that the entire thermal insulation package is regular and stiff, and more importantly, when the cover is placed on the package, the lower surface of the cover is
  • the inner bag platform of the inner bag of the heat preservation bag is lapped together, and the place where the heat exchange of the whole heat preservation bag is higher is a closed line, and at the same time, the cover is tightly closed with the package body due to the waterproof zipper, thereby making the closure
  • the heat exchange at the line is further reduced, and the thermal insulation package has a very good thermal insulation effect.
  • Figure 1 is a schematic view showing the structure of a joint portion of a known heat-insulating package body and a cover;
  • FIG. 2 is a cross-sectional structural view of a bag cover according to an embodiment of the present invention.
  • FIG. 3 is a schematic view showing the outer structure of the inner bag of the embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a mold 214 according to an embodiment of the present invention.
  • FIG. 5 is a schematic exploded perspective view of an inner bag according to an embodiment of the present invention.
  • Figure 6 is a perspective view of an inner bag according to an embodiment of the present invention.
  • Figure 7 is another perspective view of the inner bag of the embodiment of the present invention.
  • Figure 8 is a perspective view of an insulation package prepared according to an embodiment of the present invention.
  • FIG. 9 is a schematic view showing the welding structure of the outer bag of the heat preservation package and the inner bag of the heat preservation package according to an embodiment of the present invention.
  • the embodiment discloses a method for producing a heat preservation package, comprising the following steps:
  • the thermal insulation layer 5 is placed on the inner bag 2 of the thermal insulation bag, and then placed integrally in the outer bag 3 of the thermal insulation package, and the upper side edge of the inner bag 2 of the thermal insulation package is welded together with the outer thermal insulation bag 3;
  • the thermal insulation bag cover 1 and the upper side of the thermal insulation package outer bag 3 are shaped by a glue, and then welded to obtain an insulation package.
  • steps a, b and c can be performed simultaneously without any order.
  • step a includes the following specific steps:
  • A2 a piece of TPU fabric is placed on the lateral side of the bag cover 11 and welded to complete the cover bottom 12;
  • the cover material 11 in the product obtained in the step a2 is filled with the heat insulating material layer 131 and the heat insulating material layer 132.
  • the heat insulating material layer 131 and the heat insulating material layer 132 are heat insulating cottons with different heat insulating properties.
  • TPU fabric 14 is placed over the insulation material layer 132 and welded integrally with the bag cover 11;
  • the product obtained in the step a4 is integrally fixed with the flat outer bag cover 15.
  • the upper surface of the outer bag cover 15 is a TPU fabric 151, and the lower surface of the outer bag cover 15 is combined with a non-thermoplastic material layer 152.
  • the non-thermoplastic material layer 152 is mainly for ensuring the strength of the bag cover 1. Therefore, the fixing described here is to integrally fix the a4 product to the outer side of the outer bag cover 15 by means of sewing.
  • A6 The outer side of the product obtained in the step a5 is wrapped with a layer of TPU fabric 16 and welded to obtain the heat preservation bag cover 1, so that the bag cover 1 has a waterproof function.
  • this step a5 there is also a glue.
  • the product obtained in the step a4 is integrally fixed with the outer bag cover 15, but the fixing may cause delamination over time, which saves the edge wrapping process of the a6, but has some performance in terms of product performance. Derogation is a manifestation of a deteriorating invention.
  • the height of the upper surface of the flap is slightly larger than the height of the outer bag, and the lower surface of the flap is closed when the zipper is closed. Closely closed with the upper edge of the inner bag, the contact area with air is small, and heat loss is suppressed to the utmost extent.
  • step b includes the following specific steps:
  • a rectangular thermoplastic fabric is opened along the length direction of the zipper groove 211, and then the longitudinal sides thereof are welded together to form a system outer bag outer periphery 21, and the inner bag outer periphery 21 has a peripheral edge piece located above the zipper groove 211. 212 and a peripheral lower edge piece 213 located below the zipper groove 211 (refer to FIG. 3);
  • the inner bag periphery 21 is passed through the inner side of the mold 214 (refer to FIG. 4) and the outer lower edge of the piece 213 is adjacent to the side of the zipper groove 211, and is folded outward on the outer side of the mold 214 to cover the inner bag top sheet 22.
  • the mold 214 is a hollow circular ring structure, the thickness R of the mold 214 is the width of the welding (refer to FIG. 5);
  • the upper side of the inner bag 23 is passed through the inner side of the mold 2 and folded outward on the outer side of the mold 2, and the inner bag top sheet 22 and the inner bag circumference 23 in the obtained product of the step b2 are welded together.
  • the peripheral lower edge piece 213 and the inner bag circumference 23 are respectively located on the same side of the inner bag top piece 22, and the mold 2 has a structure similar to that of the mold 214 except that the circumferential length thereof is smaller than the mold 214;
  • a cavity 231 is formed between the sheet 213 and the inner pocket 23, and the cavity 231 is used for the rear mounting of the insulating layer 5 (refer to FIG. 7).
  • the inner bag top sheet 22 in the product obtained in step b4 is cut off at the portion covered by the inner bag circumference 23 (the dotted line portion in Fig. 5), and the result is the structure shown in Fig. 6;
  • thermoplastic fabric is covered in the lower edge of the inner bag 23 of the article obtained in step b5 and welded into a system to obtain the inner bag 2 of the heat preservation bag.
  • the step c includes the following specific steps:
  • the outer bag accessories are sewn on the thermoplastic small piece fabric, and then the thermoplastic small piece fabric is welded on the outer bag circumference, and the two chain belts of the waterproof zipper are respectively welded on the upper and lower sides of the outer bag zipper groove;
  • the bottom of the bag is bonded and shaped by the glue along the lower side of the outer bag, and then welded into one body;
  • step c3 or step c4 the step of welding the thermoplastic sheet fabric is further included, and the thermoplastic sheet fabric is sewn with various accessories for the insulation package.
  • step d comprises the following more specific steps:
  • the thermal insulation layer 5 is placed in the cavity 231 of the inner bag 2 of the thermal insulation bag. Specifically, the upper side of the thermal insulation layer 5 is embedded in the inner bag periphery 23 under the inner bag topsheet 22 in an interference fit manner. Between the outer bag outer periphery 21 and the inner bag 2, the inner bag 2 is placed in the outer bag 3, and then the waterproof zipper 4 is opened, and the upper edge of the outer lower 213 is simultaneously and outer.
  • the inner side of the outer bag located under the zipper groove is welded together with the chain belt, and the outer peripheral piece 212 is integrally welded to the inner side of the outer bag and the chain belt above the outer bag zipper groove.
  • the outer periphery The reason why the sheet 213 is welded to the inner side of the outer bag and the zipper tape at the same time is because the welded portion of the upper edge of the outer lower edge of the sheet 213 crosses the portion of the outer zipper groove below the inner bag and the chain is welded, and the outer edge piece 212 is also The same reason.
  • the heat insulating layer 5 is made of a well-known polyurethane foamed sponge or EVA foaming material, and is used as a heat insulating layer between the heat insulating bag inner bag 2 and the heat insulating outer bag 3. Regardless of whether the material source and the manufacturing method are well-known technologies, the fact that they are not specifically described in the technical solution of the present invention does not mean that there is no such step.
  • the thermoplastic fabric may be TPU and its composite fabric, PVC and its composite fabric.
  • the heat preservation package has various components such as a heat preservation outer bag, a heat preservation inner bag, a heat preservation bag cover, a heat insulating layer and a heat insulating material layer.
  • the components are welded or fixed into one body.
  • the waterproof zipper becomes a boundary point for distinguishing the various components.
  • the thermal insulation package is composed of the package body and the cover, and the front and the rear are two. The nuances of the expression are normal and do not lead to deviations or obstacles in understanding the technical solution.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)
  • Laminated Bodies (AREA)
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Abstract

一种保温包生产方法，包括下述步骤：制备保温包袋盖、保温包内袋和保温包外袋，将保温层装入保温包内袋和外袋之间，再将三者焊接成一体。其中在制作内袋时先制作内袋外围，接着焊接内袋顶片，再焊接内袋围，然后剪去内袋顶片中间部分，再焊接内袋底面，从而在保温包内袋形成一个内袋平台。该保温包的包盖与包体之间的热传递大大减少，保温效果得到改善。

Description

一种保温包生产方法 技术领域
本发明涉及一种保温包生产方法，所生产的保温包用于冷链物流、产品保鲜、保温、恒温保存等领域。
背景技术
保温包有钢性的和柔性的两种，柔性的保温包一般包括活动连接的包体和包盖，所述包体包括内袋、外袋和保温层，所述内袋设有上部开口且具有一定容积的容腔，所述外袋设有上部开口且具有比内袋更大的容腔，所述保温层设于内袋与外袋之间用于在内袋和外袋之间起隔热和保温作用，所述保温层具有一体相连的前侧壁、后侧壁、左侧壁、右侧壁和下侧壁，所述包盖由上盖、下盖和保温材料层组成，上盖和下盖的外侧壁固定连接，包盖保温材料层设于上盖和下盖之间，包体和包盖一般通过拉链或者卡扣装置可折卸连接。该种柔性保温包有防水的和不防水的两种，不防水的保温包各组成部分一般通过车缝连接，整个保温包外形较为规整，制作比较方便，当然缺点就是不防水。对于防水保温包来说，各组成材料需要通过高周波焊接，参考图1，包体的外袋1’和内袋2’在焊接的时候由于保温层3’具有一定的厚度无法紧贴保温层焊接，而是离保温层上表面具有一定的距离L，这样当包盖5’盖设于包体上时，由于拉链4’及距离L部分都不具有承重强度，因此整个保温包外观不规整，同时由于距离L部分不具有保温功能，因此热交换在拉链4’及距离L部分大大增加，保温效果受到很大的制约，因此有必要对现有的保温包的保温效果进一步优化。另外2015年9月22日公开的、专利号为US9139352B2的美国专利公开一种隔热包及对应的生产方法，该种隔热包生产过程包括：裁切片材和制备配件---焊接袋盖(即将袋盖片材与防水拉链焊接在一起)---焊接内袋(将内袋各组成片材焊接成一体)---将袋盖与内袋焊接成一体---焊接外袋---制备(安装)保温层---将保温层装入外袋---将内袋套入保温层内侧---将袋盖与外袋缝合成一体，最终制得该防水隔热包，但是该种防水隔热包其包盖不具有保温层，因此热量很容易通过包盖部分与外界进行热交换导致保温效果较差。因此对于包体和包盖分别具有保温层的防水保温包来说，如何在包体和包盖可折卸连接部分降低热传递是有待解决技术问题。
发明内容
本发明的目的提供一种外型更规整、热传递更小的保温包生产方法。
为达到上述目的，本发明是通过以下技术方案实现的：一种保温包生产方法，包括下述步骤：
a、制备保温包袋盖；
b、制备保温包内袋；
c、制备保温包外袋；
d、将保温层套在保温包内袋上，再整体置于保温包外袋中，将保温包内袋的上侧沿和保温包外袋焊接在一起；
e、将保温包袋盖与保温包外袋上侧沿通过粘胶定型，再进行焊接，制得保温包。
所述步骤b包括下述具体步骤：
b1、将一块矩形热塑性面料沿其长度方向开设拉链槽后再将其纵向两侧沿焊接成一体制得内袋外围，所述内袋外围具有位于拉链槽上方的外围上沿片与位于拉链槽下方的外围下沿片；
b2、将内袋外围由模具一的内侧穿过且外围下沿片向外翻折在模具一的外侧，将内袋顶片盖设于所述外围下沿片的上方并焊接在一起；
b3、将另一块矩形热塑性面料的纵向两侧沿焊接在一起作为保温包内袋的内袋围；
b4、将内袋围上侧沿由模具二的内侧穿过且向外翻折在模具二的外侧，将步骤b2的制得品中的内袋顶片与内袋围焊接在一起，此时外围下沿片与内袋围分别位于内袋顶片的同一侧；
b5、将步骤b4制得品中的内袋顶片位于内袋围所包覆的部分剪去；
b6、将一块热塑性面料盖在步骤b5制得品所述内袋围下侧沿并焊接成一体制得保温包内袋。
进一步的改进是，所述一种保温包生产方法的步骤a包括下述具体步骤：
a1、将一块矩形热塑性面料的纵向两个侧沿焊接在一起作为保温包袋盖的袋盖围；
a2、将一块热塑性面料盖在袋盖围的一侧并进行焊接完成套盖底；
a3、在步骤a2制得品中的袋盖围内装入保温材料层；
a4、将另一块热塑性面料盖在所述保温材料层上方并与袋盖围焊接成一体；
a5、将步骤a4制得品与平板状的外袋盖固接成一体；
a6、在步骤a5制得品的外侧沿包裹一层热塑性面料制得保温包袋盖。
又一步的改进是，所述一种保温包生产方法的步骤c包括下述具体步骤：
c1)、裁切一块矩形的热塑性面料作为保温包外袋的外袋围，在其上冲裁拉链槽；
c2)、将外袋配件车缝在热塑性小片面料上，再将热塑性小片面料焊接在外袋围上，同时将防水拉链的两个链带分别焊接在外袋围拉链槽两侧；
c3)、将外袋围的纵向两个侧沿焊接在一起；
c4)、将袋底通过胶水与外袋围下侧沿粘接定型，再焊接成一体；
优选的，所述的一种保温包生产方法的步骤d中，在焊接的时候，将防水拉链打开，将外围下沿片的上侧沿与外袋围拉链槽下方的外袋围内侧或链带焊接在一起，将外围上沿片整体焊接在外袋围拉链槽上方的外袋围内侧或者链带上。
通过采用前述技术方案，本发明的有益效果是：本发明根本性改变了现有保温包内袋的惯常生产方法，即采用一整片的内袋顶片先与内袋外围焊接，再与内袋围焊接，这样在内袋外围与内袋围、内袋顶片之间形成了用于与袋盖对接的内袋平台，该内袋平台下方插入保温层之后，该内袋平台承受袋盖的压力，该压力更多的表现为防水拉链闭合后的拉力和外力，从而使得整个保温包外形规整、硬挺，更重要的是，当包盖盖设于包体上时，包盖下表面与保温包内袋的内袋平台搭接在一起，表现为整个保温包热交换较高的地方是一条闭合线，同时由于防水拉链将包盖与包体紧紧的闭合在一起，从而使得该闭合线处的热交流进一步降低，进而该保温包具有非常好的保温隔热效果。
附图说明
图1为公知保温包包体与包盖接合部分结构示意图；
图2为本发明实施例袋盖剖视结构示意图；
图3为本发明实施例内袋外围展开结构示意图；
图4为本发明实施例模具214结构示意图；
图5为本发明实施例内袋立体分解示意图；
图6为本发明实施例内袋立体图；
图7为本发明实施例内袋另一视角立体图；
图8为本发明实施例制得的保温包立体图；
图9为本发明实施例保温包外袋与保温包内袋焊接结构示意图；
具体实施方式
以下将结合具体实施例来详细说明本发明的实施方式，借此对本发明如何应用技术手段来解决技术问题，并达成技术效果的实现过程能充分理解并据以实施。
参考图2至图9，实施例公开一种保温包生产方法，包括下述步骤：
a、制备保温包袋盖1；
b、制备保温包内袋2；
c、制备保温包外袋3；
d、将保温层5套在保温包内袋2上，再整体置于保温包外袋3中，将保温包内袋2的上侧沿和保温包外袋3焊接在一起；
e、将保温包袋盖1与保温包外袋3上侧沿通过粘胶定型，再进行焊接，制得保温包。
上述各步骤中，步骤a、b和c不分先后，可以同时进行。
参考图2，所述步骤a包括下述各具体的步骤：
a1、将一块矩形的TPU面料的纵向两个侧沿焊接在一起作为保温包袋盖1的袋盖围11；
a2、将一块TPU面料盖在袋盖围11的横向一侧并进行焊接完成套盖底12；
a3、在步骤a2制得品中的袋盖围11内装入保温材料层131及保温材料层132，所述保温材料层131和保温材料层132是不同保温性能的保温棉。
a4、将另一块TPU面料14盖在所述保温材料层132上方并与袋盖围11焊接成一体；
a5、将步骤a4制得品与平板状的外袋盖15固接成一体，这里所述的外袋盖15上表面为TPU面料151，外袋盖15的下表面复合有非热塑性材料层152，该非热塑性材料层152主要是为了保证袋盖1的强度，因此，这里所述的固接是采用车缝的方式将a4制得品与外袋盖15外侧沿固接成一体。
a6、在步骤a5制得品的外侧沿包裹一层TPU面料16并进行焊接制得保温包袋盖1，这样所述袋盖1具有防水的功能。当然本步骤a5中，也有通过粘胶 将步骤a4制得品与外袋盖15固接成一体的，但这种固接随着时间的推移会产生脱层，其虽然节省了a6的包边工序，但是在产品的性能方面有所减损，属于变劣发明的一种表现，在实际生产过程中，袋盖盖合于内袋上方时，袋盖上表面高度略大于外袋的高度，表现在通过拉链闭合时，袋盖下表面与内袋上侧沿紧密闭合，与空气的接触面积小，热损失得到最大程度的抑制。
参考图3至图7，所述步骤b包括下述各具体的步骤：
b1、将一块矩形的热塑性面料沿其长度方向开设拉链槽211后再将其纵向两侧沿焊接成一体制得内袋外围21，所述内袋外围21具有位于拉链槽211上方的外围上沿片212与位于拉链槽211下方的外围下沿片213(参考图3)；
b2、将内袋外围21由模具214(参考图4)的内侧穿过且外围下沿片213靠近拉链槽211的那一侧向外翻折在模具214的外侧，将内袋顶片22盖设于所述外围下沿片213的上方并焊接在一起，所述模具214为一中空的圆环形结构，模具214的厚度R就是焊接的宽度(参考图5)；
b3、将另一块矩形TPU面料沿其长度方向的两个侧沿焊接在一起作为保温包内袋的内袋围23(参考图5)；
b4、将内袋围23上侧沿由模具二的内侧穿过且向外翻折在模具二的外侧，将步骤b2的制得品中的内袋顶片22与内袋围23焊接在一起，此时外围下沿片213与内袋围23分别位于内袋顶片22的同一侧，所述模具二的结构与模具214类似，只是其周向长度比模具214小；从而在外围下沿片213与内袋围23之间形成一个容腔231，该容腔231用于后面装入保温层5(参考图7)。
b5、将步骤b4制得品中的内袋顶片22位于内袋围23所包覆的部分(图5中的虚线部分)剪去，其结果为图6所示的结构；
b6、将一块热塑性面料盖在步骤b5制得品所述内袋围23下侧沿并焊接成一体制得保温包内袋2。
所述步骤c包括下述各具体的步骤：
c1)、裁切一块矩形的TPU面料作为保温包外袋的外袋围，在其上冲裁拉链槽；
c2)、将外袋配件车缝在热塑性小片面料上，再将热塑性小片面料焊接在外袋围上，同时将防水拉链的两个链带分别焊接在外袋围拉链槽上下两侧；
c3)、将外袋围的纵向两个侧沿焊接在一起；
c4)、将袋底通过胶水与外袋围下侧沿粘接定型，再焊接成一体；
在步骤c3或者步骤c4之后可选的还包括焊接热塑性小片面料的步骤，这些热塑性小片面料上车缝有保温包的各种配件。
前述c1至c4各步骤为公知技术。
所述步骤d包括下述更具体的步骤：
将保温层5套在保温包内袋2上的容腔231中，具体地说，保温层5的上侧沿是以过盈配合的方式嵌入内袋顶片22下方的所述内袋围23与内袋外围21之间，再将保温层5与保温包内袋2整体置于保温包外袋3中，然后将防水拉链4打开，将外围下沿片213的上侧沿同时与外袋围拉链槽下方所在的外袋围内侧和链带焊接在一起，将外围上沿片212整体焊接在外袋围拉链槽上方所在的外袋围内侧和链带上，在本实施例中，外围下沿片213之所以同时和外袋围内侧和拉链带焊接，是因为外围下沿片213上侧沿的焊接部分跨越外袋围内侧拉链槽下方与链带焊接的部分，外围上沿片212也是同样的原因。
在本发明的技术方案中，所述保温层5由公知的聚氨酯发泡海棉或EVA发泡材料制得，其作为保温包内袋2和保温包外袋3之间的保温隔热层时，不管是材料来源、制作方法都是公知技术，因此在本发明的技术方案中没有具体阐述并不意味着没有该步骤。所述热塑性面料可以是TPU及其复合面料、PVC及其复合面料。
在本发明的表述过程中，在生产方法部分，保温包具有保温包外袋、保温包内袋、保温包袋盖、保温层和保温材料层等各组成部分。但是在制得完整的保温包时，各组成部件焊接或者固接成一体，此时防水拉链成了区别各组成部分的分界点，此时，保温包由包体和包盖组成，前后两种表述的细微差别是正常的，并不会带来技术方案理解上的偏差或者障碍。
尽管结合优选实施方案具体展示和介绍了本发明，但所属领域的技术人员应该明白，在不脱离所附权利要求书所限定的本发明的精神和范围内，在形式上和细节上可以对本发明做出各种变化，均为本发明的保护范围。

Claims (4)

  1. 一种保温包生产方法，包括下述步骤：
    a、制备保温包袋盖；
    b、制备保温包内袋；
    c、制备保温包外袋；
    d、将保温层套在保温包内袋上，再整体置于保温包外袋中，将保温包内袋的上侧沿和保温包外袋焊接在一起；
    e、将保温包袋盖与保温包外袋上侧沿通过粘胶定型，再进行焊接，制得保温包；
    其特征在于：所述步骤b包括下述步骤：
    b1、将一块矩形热塑性面料沿其长度方向开设拉链槽后再将其纵向两侧沿焊接成一体制得内袋外围，所述内袋外围具有位于拉链槽上方的外围上沿片与位于拉链槽下方的外围下沿片；
    b2、将内袋外围由模具一的内侧穿过且外围下沿片向外翻折在模具一的外侧，将内袋顶片盖设于所述外围下沿片的上方并焊接在一起；
    b3、将另一块矩形热塑性面料的纵向两侧沿焊接在一起作为保温包内袋的内袋围；
    b4、将内袋围上侧沿由模具二的内侧穿过且向外翻折在模具二的外侧，将步骤b2的制得品中的内袋顶片与内袋围焊接在一起，此时外围下沿片与内袋围分别位于内袋顶片的同一侧；
    b5、将步骤b4制得品中的内袋顶片位于内袋围所包覆的部分剪去；
    b6、将一块热塑性面料盖在步骤b5制得品所述内袋围下侧沿并焊接成一体制得保温包内袋。
  2. 根据权利要求1所述的一种保温包生产方法，其特征在于：所述步骤a包括下述步骤：
    a1、将一块矩形热塑性面料的纵向两个侧沿焊接在一起作为保温包袋盖的袋盖围；
    a2、将一块热塑性面料盖在袋盖围的一侧并进行焊接完成套盖底；
    a3、在步骤a2制得品中的袋盖围内装入保温材料层；
    a4、将另一块热塑性面料盖在所述保温材料层上方并与袋盖围焊接成一体；
    a5、将步骤a4制得品与平板状的外袋盖固接成一体；
    a6、在步骤a5制得品的外侧沿包裹一层热塑性面料制得保温包袋盖。
  3. 根据权利要求1或2所述的一种保温包生产方法，其特征在于：所述步骤c包括下述步骤：
    c1)、裁切一块矩形的热塑性面料作为保温包外袋的外袋围，在其上冲裁拉链槽；
    c2)、将外袋配件车缝在热塑性小片面料上，再将热塑性小片面料焊接在外袋围上，同时将防水拉链的两个链带分别焊接在外袋围拉链槽两侧；
    c3)、将外袋围的纵向两个侧沿焊接在一起；
    c4)、将袋底通过胶水与外袋围下侧沿粘接定型，再焊接成一体；
  4. 根据权利要求3所述的一种保温包生产方法，其特征在于：所述步骤d中，在焊接的时候，将防水拉链打开，将外围下沿片的上侧沿与外袋围拉链槽下方的外袋围内侧或链带焊接在一起，将外围上沿片整体焊接在外袋围拉链槽上方的外袋围内侧或者链带上。
PCT/CN2016/000681 2016-08-05 2016-12-14 一种保温包生产方法 WO2018023204A1 (zh)

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