![<?echo $_SERVER['SERVER_NAME'];?>](/template/twentyseventeen/skin/images/header.jpg)
ã€Patent Name】Induction sealing equipment and method that can be used for the production of pourable food packaging ã€Applicant】 Tetra Valle Group and Finance Co., Ltd. [Inventor] C. Ferrari; A. Melandri; S. Jarved; G. Galavoti [Address of Principal Applicant] Puli, Switzerland [Application Number].X
〠Application Date 】 2004.03.26
〠Validation Announcement No. ] 1767937
〠Validation announcement date 】 2006.05.03
[Main classification number] B29C65/02(2006.01)I
[Categorical Number] B29C65/02(2006.01)I B65B51/22(2006.01)I B65B57/00(2006.01)I
〠Priority Items】 2003.3.28 IT TO2003A000238
ã€Sovereignty Items】 1. An induction sealing device that can be used to produce a package of pourable foods. To this end it is necessary to laterally seal the tubes (13) of the sheet packaging material, which includes at least one layer (12) that can be heated by induction. The material, said inductively heatable material, is covered by a plastics material (16), said sealing device comprising: a generating device (3) for generating an alternating power signal S(ω); at least one inductor (4) For receiving the alternating power signal S(ω) to induce a parasitic current in the layer (12) and locally melt the plastic material (16) to form a lateral seal; and a matching circuit (7) for The optimal power transfer between said generating means (3) and said inductor (4) is characterized in that said matching circuit (7) comprises an inductive-capacitive circuit, of which at least An inductive element (23a, 23) is connected to at least one capacitive element (20, 24, 25, 26, 27) having a variable capacitance; the capacitance of the capacitive element is adjustable so that the current-voltage phase angle can be made closer 0.
[Instructions CD-ROM] D0618-1
ã€International Application】 2004-03-26 PCT/EP2004/050385
ã€International Publication】 2004-10-07 WO2004/085253 Ying [Abstract] An induction sealing device can be used for the production of infusion food packaging. To this end, it is necessary to laterally seal the sheet packaging material tube (13). The packaging material includes At least one layer (12) of inductively-heatable material is covered by a plastic material (16). Said sealing device has: a generator (3) for generating an alternating power signal S(ω); an inductor (4) for receiving an alternating power signal S(ω) so as to be at said layer (12) ) induces parasitic currents and locally melts the plastic material (16) to form a transverse seal; and a matching circuit (7) for optimal power between the generator (3) and the inductor (4). transmission. The matching circuit (7) includes an inductive-capacitive circuit in which the capacitance of the capacitive element (20, 24, 25, 26, 27) with variable capacitance is adjustable so that the current-voltage phase angle can be made close to zero.
〠Agency 】 China Patent Agent (Hong Kong) Co., Ltd. [Agent] Gong Haijun Zhang Zhixing
〠Application Date 】 2004.03.26
〠Validation Announcement No. ] 1767937
〠Validation announcement date 】 2006.05.03
[Main classification number] B29C65/02(2006.01)I
[Categorical Number] B29C65/02(2006.01)I B65B51/22(2006.01)I B65B57/00(2006.01)I
〠Priority Items】 2003.3.28 IT TO2003A000238
ã€Sovereignty Items】 1. An induction sealing device that can be used to produce a package of pourable foods. To this end it is necessary to laterally seal the tubes (13) of the sheet packaging material, which includes at least one layer (12) that can be heated by induction. The material, said inductively heatable material, is covered by a plastics material (16), said sealing device comprising: a generating device (3) for generating an alternating power signal S(ω); at least one inductor (4) For receiving the alternating power signal S(ω) to induce a parasitic current in the layer (12) and locally melt the plastic material (16) to form a lateral seal; and a matching circuit (7) for The optimal power transfer between said generating means (3) and said inductor (4) is characterized in that said matching circuit (7) comprises an inductive-capacitive circuit, of which at least An inductive element (23a, 23) is connected to at least one capacitive element (20, 24, 25, 26, 27) having a variable capacitance; the capacitance of the capacitive element is adjustable so that the current-voltage phase angle can be made closer 0.
[Instructions CD-ROM] D0618-1
ã€International Application】 2004-03-26 PCT/EP2004/050385
ã€International Publication】 2004-10-07 WO2004/085253 Ying [Abstract] An induction sealing device can be used for the production of infusion food packaging. To this end, it is necessary to laterally seal the sheet packaging material tube (13). The packaging material includes At least one layer (12) of inductively-heatable material is covered by a plastic material (16). Said sealing device has: a generator (3) for generating an alternating power signal S(ω); an inductor (4) for receiving an alternating power signal S(ω) so as to be at said layer (12) ) induces parasitic currents and locally melts the plastic material (16) to form a transverse seal; and a matching circuit (7) for optimal power between the generator (3) and the inductor (4). transmission. The matching circuit (7) includes an inductive-capacitive circuit in which the capacitance of the capacitive element (20, 24, 25, 26, 27) with variable capacitance is adjustable so that the current-voltage phase angle can be made close to zero.
〠Agency 】 China Patent Agent (Hong Kong) Co., Ltd. [Agent] Gong Haijun Zhang Zhixing