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公开(公告)号：EP0938393B1
公开(公告)日：2003-07-02
申请号：EP96933312.9
申请日：1996-08-05
CPC分类号： B29C31/042 , B29C43/18 , B29C43/34 , B29C2043/3433 , B29K2105/0002 , B29L2031/56 , B29L2031/565
摘要： A process and device are disclosed for uniformly applying fluid sealing material (compound;C,R) in the body or cover hook (81;81i,81n,81r) of a lid (D) in order to prepare a tight double seam closure. A plurality of needles (30a,30b,30c,...;30x) or a continuous projecting ring (37,38) enter with their front ends (35a,35b,35c,...;35x,38) through one or several bottom openings (40;40x) in a continuous application channel (48) with two delimiting edges (45b,46b). The axial position of the needles (30x) or projecting ring (37,38) in the channel (48) may be adjusted from behind (31a,32a,...;31x,32x) without their ends (35a,...,35x,38) at the channel side having to absorb axial adjusting forces from the body or cover hook (81n). The compound (fluid sealing material) may thus be more precisely, more uniformly and more gently applied on the body or cover hook, and damages to the metallic application point are avoided, in particular in the case of metal sheets of less than 0.24 mm thickness. Although the compound is applied more gently, it is precisely dosed and positioned, so that the resulting sealing ring (R) has exactly the width, thickness and position required in the cover or body hook to ensure the tightness of the double seam closure formed therefrom. The amount of sealing material (C) used can also be reduced.
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公开(公告)号：EP0921878B1
公开(公告)日：2001-02-28
申请号：EP97929130.9
申请日：1997-06-20
发明人： PETER, Wolfgang , HARTUNG, Hans
摘要： A process is disclosed for forming metallic lid bordering rings (20; 20a, 20b, 20c, 20d, 20e) with an inside opening (21) and a ring-shaped profiled border (20a, 20b, 20c, 20e). A cylindrical blank (10, VR) placed in the centre of several ring-shaped, concentrically joined tool segments (1 to 7) is pushed axially downwards (v0) by a outer tool segment (1) and deformed in a radial direction (v0') over a ring-shaped deflecting lip (5a) of a segment tool (5) located further inward in the radial direction among the concentrically joined tool segments (1 to 7). An upper segment tool (2) is held above the deflecting lip (5a) to define a gap (S) into which the blank (10; VR; HR) radially deformed (v0') inwards is pressed. This avoids the formation of cuttings inside (21) the thus produced lid bordering ring (20).
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