| 摘要 |
<p>The invention refers to a machine to form a sling with a wire loop (27) at the end of the wire (8) and with a clamping sleeve (2) serving as a wire lock for the loop (27). In the machine feed wheels (7) are included for feeding in the wire (8) at one side of a press device (5), through a clamping sleeve (2) introduced in the press device (5) and out at the opposite side of the press device (5). Further an elongated duct (10) is contained in the machine, situated on the output side of the press device (5), which duct is provided to guide the front end portion (13) of the wire (8) in the feeding direction during the continued feed of the feed wheels (7) of the wire (8). In front of the duct (10) outlet port a clamping device (14) is situated, which is arranged to seize the wire (8) a paragraph behind its front portion and by means of a revolving means (15) revolve round the end portion of the wire (13) substantially half a turn for formation of a wire loop (27) as well as lead back the same against the press device (5) as far, that the end portion of the wire penetrates through the clamping sleeve (2) in the main parallel to the portion of the wire (8) extending through the clamping sleeve (2). A first indicating device (29) is arranged to detect correct feeding position for the end portion of the wire in the clamping sleeve (2) after the formation of the wire loop (27) and to give signal to reversing of the wire feeding. A second indicating device (31) is arranged to detect correct calculated size of the wire loop (27) and subsequently give signal to the press device (5) for pressing of the clamping sleeve (2).</p> |
