• 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:
    A web of bag-making material has folded rectangular sheets adhered at intervals to one face by one flap of each sheet before longitudinal margins of the web are folded over, stuck to the other flap of each sheet and joined where they overlap to define a tube, whereafter sections are severed from the tube to make bags to be formed with cross-bottom closures at the ends. The size and position of the folded sheets are such that each sheet will subsequently form an internal seal for the cross-bottom closure.
    公开号:SU965345A3
    申请号:SU792725249
    申请日:1979-02-15
    公开日:1982-10-07
    发明作者:Фельдкемпер Рихард
    申请人:Виндмеллер Унд Хельшер (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a method for manufacturing packaging containers, in particular bags with a cross-shaped bottom.
    A known method of manufacturing bags with a cross-shaped base, which consists in feeding a paper web, bending the side edges longitudinally and fastening them overlap with a longitudinal seam, forming a flat sleeve, cross-section of the sleeve on the bag blanks, forming a base in each blank by pulling, transverse bending and gluing it end section with the formation of the bottom, installation and fixing of the base seal (jJ.
    To increase the density, the bottom is glued onto it. But sticking the sealing sheet to the bottom makes the bag not strong enough.
    The purpose of the invention is to increase the strength of the bags.
    This goal is achieved by the fact that according to the method of manufacturing bags with a cross-shaped base, which consists in feeding a paper web, longitudinally bending the side edges and fastening them overlap with a longitudinal seam, forming a flat sleeve, cross-section of the sleeve on the bag blanks, forming a base in each blank by pulling, lateral bending and gluing its end section with the formation of the bottom, installing and fixing the base seal on a paper sheet in front of the longitudinal bend its lateral edges, the base seals are installed according to the number of blanks in the form of sheets bent in half with a bend line perpendicular to the web feed direction, with a length exceeding the distance between the 20 bending lines of the base and a width exceeding the width of the bottom formed, transverse bending of the end section of the workpiece is carried out before with a sealant, and the seal 25 is strengthened at the base of each workpiece by gluing the lower sides with the blade along (cut lines and upper sides with the side edges of the blade.
    Additional sealants 5 are installed for each workpiece and an additional base is formed from the opposite end of the workpiece.
    The installation of seals for each of the billets is performed by bending outward.
    The installation of seals for each workpiece is made by bending inward.
    Before installing in one of the seals of each workpiece, 5 incisions are made perpendicular to the bend of the seal.
    In FIG. 1 - a flat tape of material with glued curved sheets forming an internal seal, 20 top view; in FIG. 2 is a section of a sleeve formed from the tape shown in FIG. 1; . FIG. 3 ~ end of a sleeve segment with a stretched bottom; in FIG. 4 - a flat tape of material with curved sheets glued with bends inward, top view.
    On the tape 1 from kraft paper or from multilayer paper at a certain distance from each other, seals 2 are placed, located in the middle part of the tape parallel to each other. Adhesive strips 3 ″ are applied along the perimeter of the seals, the bend lines 4 of the seals being directed towards each other (for a pair of seals 35 ) and the internal distance 5 between the seals 2 corresponds to the size of the bag 6 formed later.
    Seals 2 are located on the tape 1 in the middle part 7, which 40 later forms the walls of the bags. On the tape 1 at the place of formation of the walls 8, consisting of parts 9 and Yu, resulting from bending along the edges 11 and T2 and glued by a longitudinal 45 seam 13, adhesive strips 14 and 15 are applied. Using strips 14 and 15, the longitudinal edges of the seals 2 when forming, the sleeves are connected to the wall 8. 50
    To obtain a rectangular cross-section, part of the sleeve 16 (Fig. 2) has two notches on each side.
    The base of the bag 6 according to FIG. 3 • has seals 2 longer than 55 in FIG. 1 and 2. In this case, the corners of the 17 seals bend together with the bag. The longer the seal 2 ', ;
    965345 4 the smaller the gap remaining in the coil, which does not overlap with the help of gaskets. In bags with such seals, a very high base density is achieved.
    When gluing the bent seal 2 onto the still open tape 1, it should be noted that the adhesive strips 3, '14 and 15 are located on the sides of the bends behind the base bend line (shown in dashed lines in Fig. 3).
    The bending line 4 of the seal 2 is located on the line connecting the external corners (shown in dashed lines in Fig. 3). In the finished bottom, the seal is placed horizontally. One of the seals 2 located in the bags is made with a notch 18.
    As can be seen from FIG. 4, the seals 2 with their bends 4 can be glued to the tape with bends inward. However, the seals 2 glued in accordance with FIG. 1, more accurately reproduce the cruciform base.
    权利要求:
    Claims (3)
    [1]
    It is made by gluing the undersides to the web along the LINE of the cut and the upper sides to the side edges of the canvas. Install additional seals for each workpiece and form an additional base from the opposite end of the workpiece. The installation of the seals of each billet is made by bending outward. The installation of the seals of each billet is made by bending inwards. Prior to installation, an incision is made in one of the seals of each piece, perpendicular to the bending of the sealer. FIG. 1 - flat tape of material with glued curved sheets forming the inner seal, top view; in fig. 2 shows the arm section formed from the tape shown in FIG. one; .on FIG. 3 end of sleeve length with tight bottom; in fig. k - flat tape of material with Curved sheets glued inward with bends, top view. On the tape 1 of kraft paper or of multilayer paper at a certain distance from each other impose with seals 2, have | e in the middle of the tape parallel to each other. Along the perimeter of the seals, adhesive strips 3 are applied along the line 4 of the bend of the seals directed toward each other (for a pair of seals. Lees) and the internal distance 5 between the seals 2 corresponds to the size of the bag 6 formed later. The seals 2 are located on the tape 1 in the middle part 7, which later forms the walls of the bags. On the strip 1 at the site of the formation of the walls 8, consisting of parts 9 and 10, resulting from bends along the edges 11 and T2 and glued together with a longitudinal seam 13, adhesive strips I and 15 are applied. The strips and. 15, the longitudinal edges of the seals 2, when forming the sleeve, are connected to the wall 8. To obtain a rectangular section, part of the sleeve 16 (Fig. 2) has two notches on each side. The base of the bag 6 according to FIG. 3 has seals 2 longer than in FIG. 1 and 2. In this case, the corners 17 of the seals are bent together with the bag. The longer the 2v 54 gasket, the smaller the gap remaining in the engine that does not overlap with the gaskets. In bags with such seals, a very high base density is achieved. When gluing 1 bent sealant 2 onto another open tape 1, attention should be paid to the fact that glue strips 3, I and 15 are located on the sides of the bends behind the base bend line (in Fig. 3 are shown in dotted lines). The line k of the bend of the compactor 2 is located on the line connecting the outer corners (shown in Fig. 3 by the dotted line). In the finished bottom, the seal is placed horizontally. One of the seals 2 in the bags is provided with a notch 18. As can be seen from FIG. 4, seals 2 with their k bends can be pasted on the tape with bends inwards. However, the seals 2, glued in accordance with FIG. 1, the cruciform base is reproduced more accurately. The invention of the method of making bags with a cross base, consisting in feeding a paper web, buckling the side edges and fastening their overlap with a longitudinal seam, forming a flat sleeve, cutting the sleeve onto the bag blank, forming the base in each blank by pulling, transverse bending and gluing its end section with the formation of the bottom, installing and securing the base seal, which is characterized by the fact that, in order to increase the strength of the bags, on the paper floor THe before bending its longitudinal lateral edges of the base seals mounted on the number of blanks in the form of sheets folded in half. a bend line, perpendicular to the web feed direction; with a length exceeding the distance between the bend lines of the base and a width exceeding the width of the bottom to be formed, the transverse limb of the end portion of the workpiece is produced before the compactor, and the strengthening of the sealant at the base of each blank is carried out by gluing the lower sides to the web along the shear line and upper sides with side edges of the canvas,
    [2]
    2. A method according to claim 1, characterized in that additional seals are installed for each preform and the formation of an additional base is made at the opposite end of the preform.
    [3]
    3. Method according to paragraphs. 1 and 2, that is, the fact that the installation of the seals of each billet is done by bending outwards. “F.
    Fig, 2 ts k. The method according to paragraphs. 1 and 2, the fact that the installation of the seals of each preform is carried out by bends inwards is installed. 5. The method according to paragraphs. 1-3, wherein prior to installation, a cut is made in one of the seals of each workpiece, perpendicular to the bending of the sealant. Sources of information taken into account in the examination 1. French patent number 2l83 97, cl. B 31 V 33/00, 1973. /
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    同族专利:
    公开号 | 公开日
    NO150995B|1984-10-15|
    BE874896A|1979-07-16|
    US4266469A|1981-05-12|
    SE433471B|1984-05-28|
    DE2811857A1|1979-09-27|
    CH644304A5|1984-07-31|
    DK544378A|1979-09-18|
    ES478714A1|1979-07-01|
    IT7831368D0|1978-12-28|
    GB2016365A|1979-09-26|
    FI783582A|1979-09-18|
    ATA893078A|1981-04-15|
    JPS54127776A|1979-10-03|
    FI60163B|1981-08-31|
    FR2419818A1|1979-10-12|
    SE7813326L|1979-09-18|
    NO784283L|1979-09-18|
    NL7812472A|1979-09-19|
    IT1100871B|1985-09-28|
    NO150995C|1985-01-30|
    BR7901428A|1979-10-09|
    AT364769B|1981-11-10|
    FI60163C|1981-12-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2103092A|1933-08-19|1937-12-21|Arkell Safety Bag Co|Bag and method of producing the same|
    DE930843C|1952-10-30|1955-07-25|Fischer & Krecke Kg|Block or cross bottom bag machine with device for inserting reinforcement or. Sealing strips in block or cross floors|
    DE1126231B|1959-05-08|1962-03-22|Windmoeller & Hoelscher|Method and device for producing a stacking sack with a plastic-coated inner layer and with a coated cover sheet on the corners of the sack that are staggered towards the inside|
    US3195424A|1961-05-23|1965-07-20|Natro Cellulosa S P A|Plastic bag|
    DE1228502B|1962-06-29|1966-11-10|Honsel Karl Heinz|Method for producing a cross-bottom sack, preferably as a stacked sack with an inner latch|
    DE1411863A1|1962-07-21|1969-05-14|Windmoeller & Hoelscher|Cross-bottom sack made of weldable material as well as the method and device for its production|
    DE1511003A1|1965-09-27|1969-07-03|Lissner & Co Geb|Process for manufacturing valve bags|
    LU50779A1|1966-03-29|1967-09-29|
    DE2801963C2|1978-01-18|1988-09-22|Bischof Und Klein Gmbh & Co, 4540 Lengerich, De|DE3119175C2|1981-05-14|1993-07-15|Windmoeller & Hoelscher, 4540 Lengerich, De|
    US4453270A|1982-05-19|1984-06-05|Westvaco Corporation|Pasted valve stepped end bag|
    DE4112900A1|1991-03-22|1992-09-24|Windmoeller & Hoelscher|METHOD FOR PRODUCING A SACK OR BAG WITH RECTANGULAR BOTTOM IN FILLED CONDITION AND WITH A HANDLE AND A SACK OR BAG PRODUCED BY THIS METHOD|
    US9126383B2|2012-12-06|2015-09-08|Innoflex Incorporated|Bottom-gusseted package and method|
    WO2015057478A1|2013-10-16|2015-04-23|Innoflex Incorporated|Bottom and side gusseted package and method|
    US11034119B2|2015-11-23|2021-06-15|Innoflex Incorporated|Bottom gusset package with folded gusset|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19782811857|DE2811857A1|1978-03-17|1978-03-17|METHOD OF MANUFACTURING CROSS-FLOORED BAGS|
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