• 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:
    The invention relates to a method and a device for manufacturing a packaging container (1) and which container (1) consists of a bottom (2) and from this side walls (3-6) folded up, which during the manufacturing process are position-oriented and fixed relative to each other in an upright condition. by means of liquid-tight joints. The adjacent side walls (3-6) are fixable to each other by means of a liquid-tight joint in the form of a thermoplastic, while the circumferential container opening (11) of the packaging container (1) has an opening edge (12) which also consists of thermoplastic suitable for heat-sealable lid foil or resealable snap-on cap and the opening edge (12) integrally merges into the thermoplastic holding the side walls (3-6) together (% 1)
    公开号:SE1300367A1
    申请号:SE1300367
    申请日:2013-05-22
    公开日:2014-11-23
    发明作者:Einar Johansson
    申请人:Topcap Ab；
    IPC主号:
    专利说明:

    equally shaped containers, consist of a fiber-based packaging material, which is preferably coated on at least one side with a heat-sealable layer. In the case of a cheaper variant of the beaker according to the invention, this can be manufactured for dry products from a packaging material without a heat-sealable layer. In both variants, however, the side joints of the packaging container can be connected in a liquid-tight manner by means of a melt consisting of preferably thermoplastic, while its upper side comprises a circumferential opening edge along the entire container opening which is also formed by e.g. thermoplastic. A solution to the problems mentioned is to let the side walls with their fls rest directly instead of indirectly against the outer half of the molding tool during the shaping of the packaging container and fill plastic only on its inside and also between the joints but not on the outside of the packaging material.
    In this case, the packaging material is pressed against the outer half of the tool by the plastic mass and a stabilization of the entire position of the future packaging container is obtained. At the same time, the pressure of the plastic mass against the exposed inside of the packaging material means that the packaging container is held in place with great force over its entire surface. This in turn means that the plastic mass can completely fill the space or cavities between the side wall joints and just in front of them without the plastic mass penetrating the packaging material. outside at the same time as an internal x-ray of plastic mass takes place towards the inside of the edge portions of the side walls.
    The invention is described in more detail below with the aid of a preferred embodiment with reference to the accompanying drawings, in which fi g.l shows a perspective view of a packaging container according to the invention, Fig. 2 shows separately in a perspective view a shell or strip formation of the thermoplastic included i den i fi g. 1 depicted in the packaging container and which is intended to hold it together in a liquid-tight manner, fi g. 3 shows separately in a perspective view the packaging laminate itself in a rest condition and which is included in it in fi g. 1 depicted the packaging container, fi g. 4 shows it in fi g. 1 depicted the packaging container in a bottom view, fi g. 5 shows it in fi g. 1 in the top view of the packing container, Fig. 6 schematically shows a partial cross-sectional view of a mold according to the invention with its halves in a position with the dry packing material mellanxerted between them, and fi g. 7 shows a schematic partial cross-sectional view of a prior art construction of a mold tool.
    As can be seen from Fig. 1, a packaging container 1 according to the invention is shown here, which consists of a bottom 2 and side walls 3-6 unfolded therefrom, which are position-oriented and axed relative to each other in an upright condition by means of liquid-tight side joints 7-10. The side joints 7-10 consist of a suitable joint material and preferably in the present case of a solidifiable plastic melt such as a thermoplastic.
    The packaging container 1 has a circumferential container opening 11, which has an opening edge 12, which also consists of the same material which connects the side walls 3-6, ie in the preferred embodiment, thermoplastic. Against the opening edge 12, a cover foil (not shown in the drawings) can be heated with a heat-sealing glass or a resealable snap-on cap.
    The preferred embodiment shown of a dry packing container erected according to the invention is essentially slightly conically rectangular, but it can of course also have other shapes such as triangular, polygonal, oval and so on. In the triangular embodiment, it has i fi g. 2, the thermoplastic in the form of a strip formation 17 showed only three legs.
    As can be seen from the drawings, the opening edge 12 of thermoplastic is integrally formed with the side walls 3-6 liquid-tight side seams 7-10 of thermoplastic, which enclose the edge portions 13-16 of the side walls and their circumferential opening edge 12, the cohesive strip formation 17 of thermoplastic extending from the opening edge 12, along the edge portions 13-16 of the side walls 3-6 and all the way down to the bottom 2 of the container 1 during a simultaneous sealing position ering xering of all edge portions relative to each other.
    According to the invention, the side walls 3-6 in a first variant consist of a base-based packaging material 18 with at least one side coated with a heat-sealable layer, the thermoplastic joining and creating the side joints 7-10 of the packaging laminate with the later undivided, circumferential opening edge 12. other cheaper variant of the invention, the beaker is made of a packaging material without a sealable layer, which may be the case when the beaker is to be used for dry products.
    A preferred method of manufacturing a packaging container 1 according to the present invention can take place by forming a base-based packaging material 18 in the form of a laminate, which preferably has at least one side coated with a heat-sealable layer, into a packaging container 1 in a mold tool 19. comprising two halves consisting of an outer fixed part 20 and an inner movable part 21, for injection molding where a plastic melt of e.g. thermoplastic liquid-tightly joins the side seams 7-10 of the packaging material 18 and creates a thermoplastic opening edge 12 formed integrally with them. In the example described and shown, the bottom 2 and side walls 3-6 of the pre-packing container 1 are created from one and the same carrier-based packaging blank.
    In forming the packaging material 18, this assumes a geometric shape which is defined by the three-dimensional shape of the fixed half or part 20 of the mold tool 19, after which the movable part 21 of the mold tool presses the packaging material 18 against the outer, fixed part 20 of the mold tool. In the form of the fixed and movable part 20 and 21, respectively, the packaging material 18 fi x ects and locks it in its final position abutting the outer half 20 of the mold, after which the plastic melt during the injection molding only fills the cavities 23 inside the packaging material 18 and the cavities 22 invented to receive the edge portions 13-16 of the side walls 3-6, which plastic melt during injection molding fills these cavities 22,23 without coming into contact with the outside of the packaging material 18 and thereby connects the side walls 3-6 of the packaging material to each other to form the liquid-tight side splices 7. -10 at the same time as the place melt ä can also fill cavities for the circumferential container opening 11 in order to create a liquid-tight, cup-like packaging container.
    Fig. 6 shows a molding tool 18 in a schematic, partial cross-sectional view for carrying out a method according to the invention for manufacturing the relevant packaging container 1. The molding tool 18 comprises two halves, an outer, fixed part 20 and an inner, movable part 21. The outer part 20 is smoothly formed for receiving the packaging material 18 which abuts closely against it without overlap. The inner, movable part 21 has a longitudinal, edge-provided recess 24, the edges 25, 26 of which are intended to press the packaging material 18 between themselves and the outer part 20 of the forming tool 19 and extend just outside and on each side along the side joints 7-10, which recess edges 25,26 in their abutment against the packaging material 18 during the injection molding form the inner cavities 23 inside the cavities 22, which are designed to receive the side joints 7-10 to enable a filling of plastic mass both between the edge portions 13-16 and in the inner cavities 23, which houses the recesses 24.
    I fi g. 7 shows a schematic, partial cross-sectional view of a mold tool with current construction and which has the disadvantages of injection molding, which are initially described.
    权利要求:
    Claims (2)
    [1]
    A method for manufacturing a packaging container (1) consisting of a bottom (2) and foldable side walls (3-6) therefrom, which are position-oriented and expandable relative to each other in an upright condition by means of liquid-tight side joints (7-10), wherein a ber-based packaging material (18) in the form of a laminate preferably with at least one side coated with a friend-sealable layer is formed into a packaging container (1) in a mold tool (19) having two halves constituting an outer, fixed part (20) and a inner, movable part (21) for injection molding in which a plastic melt of preferably thermoplastic liquid-tightly joins the side walls (3-6) of the packaging material (18) with its edge portions (13-16) by means of said side joints (7-10) and creates a part integrally formed therewith. , circumferential opening edge (12) of thermoplastic, characterized in that during the corrugation of the packaging material (18) it assumes a geometric shape which they are av niered by the three-dimensional shape as the solid half or the part (20) of the forming tool has, after which the movable part (21) of the mold tool presses the packaging material (18) against the outer, fixed part (19) of the mold tool at the same time as the mold tool halves thereby fix the packaging material (18) and lock it in its final position. abutting the outer half (20) of the tool, after which the plastic melt during the pre-injection only fills the cavities (23) present inside the packaging material and the cavities (22) designed to receive the edge portions (13-16) of the side walls (3-6). , which plastic melt during injection molding fills these cavities (22,23) without coming into contact with the outside of the packaging material (18) and thereby connects the side walls (3-6) of the packaging material to each other to form the liquid-tight side joints (7-10) simultaneously as the plastic melt can fill voids for the circumferential container opening (11) to create a liquid-tight, cup-like packaging container.
    [2]
    Device for carrying out the method according to claim 1, characterized in that the outer part (20) of the mold tool (19) is smoothly designed for receiving the packaging material (18) which abuts closely against it without overlap and that the inner part of the mold tool (19) (21) has longitudinal edge-provided recesses (24), the edges (25, 26) of which are intended to press the packaging material (18) between themselves and the outer part (20) of the forming tool (19) and extend just outside and on each side along the side joints ( 7-10), which recess edges (25, 26) in their abutment against the packaging material (18) during the pre-injection form cavities (23) between them within cavities (22) which are designed to receive the side joints (7-10) of the packaging material (18) for enabling a filling of plastic mass both between the edge portions (13,16) of the side wall galls (3-6) and in the cavities (23) which the recesses (24) accommodate.
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    同族专利:
    公开号 | 公开日
    SE541488C2|2019-10-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1300367A|SE541488C2|2013-05-22|2013-05-22|Method and device for manufacturing a packaging container|SE1300367A| SE541488C2|2013-05-22|2013-05-22|Method and device for manufacturing a packaging container|
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