| 摘要 |
FIELD: packing industry. ^ SUBSTANCE: invention relates to packing device (1) for manufacturing sealed packages (2), filled with fluid food product, from sheet packing material. Packing device (1) contains carrying case (6), forming means (12, 13, 33), transferred relative to case (6) along set trajectory (P2), which lays sheet packing material giving it set form, sealing means (29), installed on forming means (12, 13, 33) for fastening sheet packing material and forming packages (2), and electromagnetic means (50) of energy supply for supplying energy to sealing means (29). Energy supply means (50) contains at least one primary winding (56) fixed to case (6) and connected to electric power source, and secondary winding (63), movable along mentioned above trajectory (P2), supplying energy to sealing means (29) and obtaining electric power from primary winding (56) by electromagnetic induction when secondary winding moves past primary winding (56). Being interconnected by means of electromagnetic induction, primary winding (56) and secondary winding (63) are placed in such way that their adjacent sections (59, 59', 67) adjoin each other and overlap in first direction (B), transverse to said trajectory (P2), adjacent sections (59, 59', 67) of primary winding (56) and secondary winding (63) face each other in second direction (E), perpendicular to first direction (B) and trajectory (P2), when primary winding (56) and secondary winding (63) are connected to each other by means of induction. ^ EFFECT: in sealing device according to invention efficient electromagnetic system of electric power transmission is used, which is not sensitive to air clearance between stationary transmitting part and movable accepting part, which allows to ensure required reliability of said system. ^ 8 cl, 8 dwg |
