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公开(公告)号：EP4410525A1
公开(公告)日：2024-08-07
申请号：EP24151679.8
申请日：2024-01-12
IPC分类号： B29C65/22
CPC分类号： B29C66/91213 , B29C66/1122 , B29C66/43 , B29C65/224 , B29C66/8322 , B29C66/81871 , B29C66/0044 , B29C66/8122 , B29C66/8223 , B29C66/8242 , B29C66/81811 , B29C66/73921
摘要： Welding apparatus (1), comprising: a first heating stack (11), wherein a first heating layer (15) is electrically connected to a first electronic control circuit (18) and is located between a first cover layer (16) and a first electric insulator (14) which is mounted on a first ledge (12); a second heating stack (61), wherein a second heating layer (65) is electrically connected to a second electronic control circuit (68) and is located between a second cover layer (66) and a second electric insulator (64) which is mounted on a second ledge (62); wherein the first heating stack (11) and the second heating stack (61) are coupled to a drive (8) to provide a linear relative movement between the first heating stack (11) and the second heating stack (61); wherein the first electronic control circuit (18) is adapted to provide electric energy to the first heating layer (15) and wherein the second electronic control circuit (68) is adapted to detect an electric resistance and/or an electric impedance of the second heating layer (65).
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公开(公告)号：EP4424501A1
公开(公告)日：2024-09-04
申请号：EP23219536.2
申请日：2023-12-21
发明人： Parkinson, Michael
CPC分类号： B29C65/38 , B29C65/224 , B29C65/228 , B29C66/8322 , B29C66/131 , B29C66/112 , B29C66/47421 , B29C66/73921 , B29C66/24221 , B29C66/81871 , B29C66/8167 , B29C66/876 , B29C66/81811
摘要： A split bus assembly is provided for a heat-sealing machine. The split bus assembly includes a clamp with first and second clamp segments that abut each other in face-to-face engagement. The engaging surfaces or inner walls of the clamp segments may be coated with a nonconductive material so that the clamp segments are electrically insulated with respect to each other. A tab terminal may be defined at each inner wall, constituting a zone of exposed conductive material which is configured to engage a conductive tab of a heat-seal band during use. Biasing members such as a silicone spring may be arranged in the tool to facilitate ejection of the heat-seal band during a removal procedure. The tool may be cooled by way of cooling fluid that flows through passages in the bus bars.
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3.发明公开
公开(公告)号：EP4424500A2
公开(公告)日：2024-09-04
申请号：EP23219534.7
申请日：2023-12-21
发明人： Parkinson, Michael
CPC分类号： B29C65/228 , B29C65/224 , B29C65/30 , B29C66/1122 , B29C66/47421 , B29C66/8322 , B29C66/91313 , B29C66/24221 , B29C66/24244 , B29C66/73921
摘要： A heat-seal band is provided that incorporates voltage sensing wires, such as signal wires or conductors that are separate from current load carrying wires or conductors. This provides two discrete electrical paths: a voltage sensing path, and a current transmission path. The voltage signal conductor(s) in the voltage sensing path may be insulated to mitigate any non-desired influence by means of the voltage signal conductor's exposure to thermal or electrical influences from the current transmission path, including current transmission paths defined through conductive tabs that connect the heat-seal band to the current load conductors. The voltage signal conductor may connect at a node to the tab to band (tab/band) junction, which is defined at an intersection of the heat-seal band's conductive tab and the band that directs heat into a workpiece. Additional or a second set of voltage sensing conductors may be electrically connected to the heat-seal band at a location that is spaced from or in a subset of the first set of voltage sensing conductors. The second set of voltage sensing conductors may provide a secondary voltage sensing arrangement as a verification tool for evaluating temperature discrepancies between their locations and those of the first set, indicative of heating non-uniformity about the heat-seal band.
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公开(公告)号：EP4424499A1
公开(公告)日：2024-09-04
申请号：EP23219523.0
申请日：2023-12-21
发明人： Parkinson, Michael
CPC分类号： B29C65/228 , B29C65/18 , B29C65/38 , B29C66/1122 , B29C66/24221 , B29C66/472 , B29C66/474 , B29C66/81831 , B29C66/8322 , B29C66/9161 , B29C65/224
摘要： A heat-seal band system is provided with an air gap arrangement that facilitates heat tunability and corresponding balancing of heat distribution through a tab to band (tab/band) junction of a heat-seal band. The heat-seal band may be implemented as a closed-contour heat-seal band with a band that has a workpiece facing surface that directs heat toward a workpiece and an opposite surface from which a pair of conductive tabs extend. Tab covers engage at least portions of the tabs to establish air gaps with dimensions that influence energy transmissibility at the tab/band junction. The tab covers may be fixed such as those defined by portions of clamps that hold the tabs and/or variable such as those implemented as replaceable gap gauges of different dimensions. Selecting and mounting different gap gauges facilitates heat tunability through adjusting the air gap to help identify an acceptable amount of heating uniformity about an entire workpiece facing surface of the heat-seal band.
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