• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    After filling, the open end of a thermoplastic sack is closed by gathering it into zig-zag folding (1) which is compressed between apertured jaws (3, 4). Heated needles (7) insertable through the jaw apertures (5) pierce the compressed zig-zag folding and cause the individual folds to be welded to each other adjacent the piercings to secure the closure against springing open after the jaws (3, 4) are removed. <IMAGE>
    公开号:SU816395A3
    申请号:SU792838806
    申请日:1979-11-13
    公开日:1981-03-23
    发明作者:Оелрих Херманн；Тетенборг Конрад；Шмидт Хорст；Хювельманн Хельмут
    申请人:Виндмеллер Унд Хельшер (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to the technique of closing bags made of thermoplastic material and to a device for its implementation and can be used in food, chemical and other sectors of the national economy.
    There is a method of closing large-sized bags of thermoplastic material, which involves folding the neck of the bag with an accordion, piercing it with hot needles and fixing it.
    It is also known a device for closing large-sized bags, containing heating needles for puncturing the neck 1.
    However, the known method is complicated, since it requires special devices for closing large-sized bags, which leads to additional equipment costs, and the device used to implement the known method does not provide sufficient sealing strength.
    The purpose of the invention is to simplify the process.
    The goal is achieved by the fact that in the proposed method of sealing large bags of thermoplastic material, which include folding the neck of the bag with an accordion, piercing it with hot needles and fixing, the neck after piercing is squeezed in the places of the holes formed in the axial pressure of the latter until the thermoplastic is hardened. At the same time, the edge of the neck is folded at least once before folding the accordion.
    When this folded harmonica before fixing bend at least once.
    In this case, the end edges of the accordion-folded neck of the bag fuse with each other under the influence of heat.
    In this case, on all the folds of the neck, they form a transverse weld.
    At the same time, in order to increase the strength of the closure, the device for closing large-sized bags, containing heating needles for piercing the neck, is provided with pressure pads for a folded neck, having coaxial openings for the needles to enter them.
    FIG. 1 shows schematically an apparatus for carrying out the method; a general view; in fig. 2,3 - bag neck, collected by an accordion, in a perspective view / in FIG. 4-9 is the neck of the bag, assembled with a garmshka, after piercing it with hot needles and fixing it, in axonometry.
    The device (Fig. 1) contains nag; zealous needles 1 for piercing the neck of the bag 2, pressure pads 3 and 4 for the folded neck, having coaxial holes 5 for the needles 1 to enter them. The needles 1 are placed on the bar 6 with the possibility of moving with the latter in axial direction: holes.
    The method is carried out as follows.
    The neck of the bag 2 is folded with a garmeshka 7 {fig. 2 and 3) and pierce with hot needles 1. After piercing, the neck of bag 2 is compressed at the places of the formed holes 5 in the axial direction of the latter between the pads 3 moving each other relative to the other (Fig. 1) until the thermoplastic material is plasticized with needles 1, while the thermoplastic material crawls into the holes 5, whereby the latter are completely filled and covered with material. The end edges of the folded Garms' 7 neck of the bag fuse with each other under the influence of heat (Fig. 4 and 5).
    The edge 8 of the neck of the bag 2 is folded once before folding the garment (Fig. 6), or the edge 9 of the neck is folded twice (Fig. 7).
    For fixation on all folds of the neck of the bag, creio also forms a transverse weld seam 10 (Fig. 8). If necessary, they form a transverse weld seam 11 (Fig. 9) on the edge of the bag neck that is folded one or more times.
    An advantage of the invention is the simplicity of the npoueccci closure and the increased strength of the closure using the proposed device for carrying out the method.
    The large-size bags closed by the proposed method have a neatly folded horizontally located edge of the neck of the bag, thereby ensuring good handling of the bags during their transportation and movement.
    Moisture does not penetrate into the closed bag in the place of its closure, which meets the requirements of good closure.
    权利要求:
    Claims (6)
    [1]
    1. A method for closing large-sized bags of thermoplastic material that involves folding the bag mouth with an accordion, piercing it with hot needles and fixing it, in order to simplify the process, after the puncture, the neck is compressed in the axially formed holes of the latter. solidification of thermoplastic material.
    [2]
    2. A method according to claim 1, characterized in that the edge of the neck is folded at least once before folding the accordion.
    [3]
    3. Method ppp.1 and 2, characterized in that the folded harmonica is folded at least once before fixing.
    [4]
    4. Method according to paragraphs. 1-3, characterized in that the end edges of the harmoniously folded neck of the bag fuse with each other under the influence of heat.
    [5]
    5. Method according to paragraphs. 1-4, characterized in that all the folds of the neck form a transverse weld seam.
    [6]
    6. A device for closing large-sized bags containing heating needles for piercing the neck, characterized in that, in order to increase the strength of the closure, it is provided with pressure pads for a folded neck having coaxial holes for the needles to enter them.
    Sources of information taken into account in the examination
    1. US patent 3021947, cl. , 206-526, published 1962.
    类似技术:
    公开号 | 公开日 | 专利标题
    US4550831A|1985-11-05|Strip of detachably connected bags for medical supplies
    SU965347A3|1982-10-07|Method for filling and sealing bags
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    CA1075649A|1980-04-15|Aseptic fluid transfer system
    US6205747B1|2001-03-27|Process for closing nets for fruits and the like and net closed by means of said process
    GB1455670A|1976-11-17|Sterile package
    US3052399A|1962-09-04|Sanitary sample collector
    CA2097742A1|1993-12-27|Total containment welding of plastic tubes
    US3627611A|1971-12-14|Method and apparatus for the manufacture of surgical pouches
    US3973474A|1976-08-10|Apparatus for making bags
    DE3900702C1|1990-04-19|
    US5417039A|1995-05-23|Method and an apparatus for filling packaging, in particular paper sacks or paper bags
    GB1308786A|1973-03-07|Method of and apparatus for closing filled flexible containers
    CH417463A|1966-07-15|Packaging and process for their manufacture
    US4706298A|1987-11-10|Fused plastic bag closure and apparatus for making same
    AU600286B2|1990-08-09|Fused plastic bag closure and apparatus for making same
    EP0865391B1|2001-03-14|Infusion packet and its manufacture
    US5199794A|1993-04-06|Plastic bag with reusable neck closure band
    US3320863A|1967-05-23|Method of making flexible bag-like containers
    US3241588A|1966-03-22|Method and means for providing multiple wings as a unit
    US3925958A|1975-12-16|Method of producing and packaging gloves formed of thermoplastic foil
    DE19501370C2|2002-11-28|Device for the production of bags with a contour
    GB1561817A|1980-03-05|Pouches
    ATA235479A|1982-05-15|DEVICE FOR LATERALLY FOLDING THE FLAT FILLING OF FILLED LARGE SACKS FOR PREPARING THE BAG CLOSURE
    DE2653995A1|1977-06-23|Vacuum sealing an envelope of flexible synthetic material - in turret machine injecting steam before electrodes weld inlet
    同族专利:
    公开号 | 公开日
    FR2441546B1|1983-12-23|
    ES253552U|1980-12-16|
    AT383324B|1987-06-25|
    FI792695A|1980-05-16|
    IT1123438B|1986-04-30|
    IT7926226D0|1979-10-03|
    JPS55109617A|1980-08-23|
    BR7907364A|1980-07-15|
    GB2034278A|1980-06-04|
    ATA559779A|1986-11-15|
    ES253552Y|1981-06-01|
    GB2034278B|1983-03-23|
    FR2441546A1|1980-06-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB666945A|1950-01-14|1952-02-20|Hercules Fasteners Inc|Improvements in sealing sausage skins or like containers|
    US3021947A|1959-02-27|1962-02-20|Amsco Packaging Machinery Inc|Fused-together unit of stacked articles|
    US2973797A|1960-01-28|1961-03-07|Amsco Packaging Machinery Inc|Apparatus for maintining the orientation of stacked bags|
    GB926742A|1960-02-11|1963-05-22|Forgrove Mach|Improvements in heat sealing of wrapping materials|
    DE2652010C2|1976-11-15|1984-03-01|Windmöller & Hölscher, 4540 Lengerich|Method of closing bags|CA1260884A|1986-07-22|1989-09-26|George Soga|Fused plastic bag closure and apparatus for makingsame|
    FI85257C|1990-01-25|1992-03-25|Rosenlew Ab Oy W|Flexible container for transport and storage of bulk goods|
    US5600938A|1995-09-22|1997-02-11|Kwik Lok Corporation|Sealing and bagging apparatus and method|
    ES2154540B1|1998-03-16|2001-10-16|Aruas Poultry Equipment S L|PROCEDURE AND DEVICE FOR THE UNION OF BANDS OF THERMOPLASTIC MATERIAL.|
    FR2783745A1|1998-09-29|2000-03-31|Bernard Vincent|Bonding compatible thermoplastic materials by hot needle-, blade-, flame- or laser-spot welding, first compresses materials, welds, cools and releases clamping pressure, in process loosely resembling machine sewing|
    JP2012111076A|2010-11-22|2012-06-14|Kao Corp|Laminated sheet|
    DE102013100131A1|2013-01-08|2014-07-10|Windmöller & Hölscher Kg|Method of making sacks|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2849587|1978-11-15|
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