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    Method and device for producing tear-open lids
    2.
    发明授权
    Method and device for producing tear-open lids 有权

    公开(公告)号：US12083577B2

    公开(公告)日：2024-09-10

    申请号：US17778438

    申请日：2020-11-16

    Applicant: Soudronic AG

    Inventor： Peter Gysi ,  Marcel Oberholzer

    IPC: B21D51/44 ,  B21D28/26 ,  B21D45/00

    CPC classification number: B21D51/443 ,  B21D28/265 ,  B21D45/003

    Abstract: A method for manufacturing a tear-off lid (27). A lid blank (9) is punched with a punching tool (1, 5) having a die (6) and a cutting punch (2, 3) to form a lid ring (8) with a central removal opening (17) surrounded by a sealing flange (18). The edge of the removal opening (17) is then formed by drawing to a collar (20) projecting from the sealing flange (18) on the intended inside of the lid (underside), the collar (20) is rolled up at its free end and a tear-off foil (24) is sealed or glued onto the sealing flange (18) on the intended outside of the lid (upper side).
    In accordance with the invention, the die (6) is arranged on the inner side (bottom) of the lid and the cutting punch (2, 3) is moved into the die (6) from the outer side (top) of the lid while punching out a punched pad (16) and the punched pad (16) is conveyed by compressed air through the die (6) to a conveyor (33) by means of which it is removed from the tool area.
    It has been shown that by this measure the known and established processes and devices for the production of tear-off lids can be modified with very little effort in such a way that during the punching of the lid blank (9) the punching or cutting pad is produced on the intended inner side (underside) of the produced lid ring (8), which is desirable when producing lids with “re-verse curl”.

    METHOD AND DEVICE FOR MANUFACTURING PEEL-OFF LIDS AS WELL AS A PEEL-OFF LID
    3.
    发明申请
    METHOD AND DEVICE FOR MANUFACTURING PEEL-OFF LIDS AS WELL AS A PEEL-OFF LID 审中-公开

    公开(公告)号：US20200094308A1

    公开(公告)日：2020-03-26

    申请号：US16605820

    申请日：2018-01-25

    Applicant: Soudronic AG

    Inventor： Peter Taiana ,  Marcel Oberholzer

    IPC: B21D51/44 ,  B65D17/50 ,  B21D51/38

    Abstract: A peel-off lid with a rolled-in section around the extraction opening is formed in such a way that before forming the rolled-in section a thin plastic strip is applied onto the collar of the lid ring. After forming the rolled-in section, the plastic strip is melted in order to reach a good adhesion of the plastic on the upper side and the underside of the peel-off lid in the rolled-in section. In this way it is possible to reach a practically hermetic sealing of the cutting edge of the peel-off lid in an inexpensive way and with the possibility to manufacture with high cadence.

    METHOD AND DEVICE FOR THE MANUFACTURE OF A CAN WITH A TEAR-OPEN LID AND CAN WITH A TEAR-OPEN LID
    5.
    发明申请
    METHOD AND DEVICE FOR THE MANUFACTURE OF A CAN WITH A TEAR-OPEN LID AND CAN WITH A TEAR-OPEN LID 有权
    用于打开盖子和CAN的打开盖子的CAN制造方法和装置

    公开(公告)号：US20160200477A1

    公开(公告)日：2016-07-14

    申请号：US14372633

    申请日：2013-01-14

    Applicant: Soudronic AG

    Inventor： Marcel Oberholzer

    IPC: B65D17/00 ,  B21D51/26

    CPC classification number: B65D17/163 ,  B21D51/2653 ,  B21D51/443 ,  B65D17/4011 ,  B65D17/502 ,  B65D2517/0041

    Abstract: To manufacture a metal can having a tear-open lid and having a storage space for an object above the tear-open lid, the following procedure is used: first, a top edge of the can which has a smaller diameter than the inside diameter of the can body is formed, wherein a transition region (6) is formed. After the tear-open lid has been attached, this transition region is deep drawn so that the tear-open lid (2) is displaced towards the bottom (5) of the can. This produces the storage space. This procedure allows previously formed tear-open lids to be used, which safely guarantees the imperviousness of the seal of the tear-open lid.

    Abstract translation: 为了制造具有撕开盖并具有用于撕开盖上方的物体的存放空间的金属罐，采用以下步骤：首先，罐的顶部边缘的直径小于 形成罐体，其中形成有过渡区域（6）。 在撕开盖已经被安装之后，该过渡区被深拉，使得撕开的盖（2）朝向罐的底部（5）移动。 这产生了存储空间。 该过程允许使用先前形成的撕开盖，其安全地保证撕开盖的密封的不透水性。

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