The present invention relates to a wire depositing apparatus. As is well known, a method for transporting wire used in industry, such as welding wire, wire with low carbon content, stainless steel wire, core wire or aluminum wire, foresees the use of drums inside which the wire is wrapped in a loop. The machine intended to carry out this task, which provides for depositing the wire inside the drum, by winding it in a loop and known by the name depositing apparatus, has a structure that can essentially be divided into two parts:
The drum, mounted on a platform, is allowed to rotate about its vertical axis eccentrically with respect to the vertical rotation axis of the flyer, which leads the wire to deposit inside the drum, forming a loop, where the wire is wrapped according to a configuration known as rose. From the operational point of view, at the starting of the winding of the wire, the platform on which the empty drum is set automatically lifts up, commanded by a sensor, such as a photocell or a completely different device suitable for this specific purpose, arranged laterally with respect to the cylindrical wall of the flyer, until the inner base of said drum almost comes into contact with the bottom end of the flyer. Then the machine starts up, allowing the flyer to turn, from which the wire to be wound comes out, whereas the platform starts to go down slowly, as the loop of wound wire inside the drum increases in thickness, always commanded by said sensor. The platform is equipped with a vibrator, which allows regular packing of the wire during winding in a loop. When the winding of the wire is complete, the platform, with the loop inside of it having reached its maximum thickness, positions itself so that it is once again totally lowered and aligned with an outer winding machine, which allows it to be unloaded. The embodiment of known depositing apparatuses, in other words with the flyer revolving in a fixed position and the platform vertically mobile, has numerous drawbacks, deriving from the difficulty of commanding and balancing the moving members. In this case, the flyer, inside of which runs the wire to be wound in a loop and that comes out from its bottom part, consists of a steel cylinder with a large diameter, which spins at a very high peripheral speed; as a result of this, in order to avoid vibrations that compromise the good outcome of the rose-formation, in addition to limiting the rotation speed of the flyer, the latter must be applied onto a very solid support frame, all of this resulting in a limited productivity and the need to make a complex metallic structure and taking up a substantial bulk. Moreover, as the mobile platform is mounted cantilevered and has to support the considerable weight of the drum that, once filled with the wound wire, can even weigh over 350 kilos, it must in turn be built very solidly and applied to a column, which must be made using an equally strong metallic structure and a substantial bulk. Basically, all of this results in a depositing apparatus being made involving complex manufacturing steps, considerable sizes, high costs and limited productivity. The purpose of the present invention is to make a depositing apparatus that does not haven the drawbacks or similar known machines. Said purpose is obtained with a depositing apparatus, characterised in that it foresees that the flyer, in addition to the rotation movement around its vertical axis, is provided with a vertical reciprocating rectilinear movement, so that it can adapt to the progressive increase in thickness of the loop of wound wire whereas, on the other hand, the platform, which acts as a bearing base, is fixed, in its lowest position, aligned with the winding machine for loading/unloading the drum. The invention also foresees a special configuration of the flyer characterised in that it has a considerably lighter structure, consisting of a casing, which carries a wire-guiding system, made up of a hollow duct that directs the wire, running inside the flyer, until it is deposited on the loop, said deposition being regulated through a small revolving cage, arranged in the bottom part of the apparatus. From the operational point of view, from the association of the three speeds that embed the wire and more precisely the advancing speed of the wire, defined by the rotation speed of the capstans, the peripheral rotation speed of the flyer, linked to the diameter of the spiral to be obtained and to the speed itself of the capstans as well as the rotation speed of the small outer cage, a regular deposition of the wrapped wire is obtained. The invention shall be understood better through the description of one of its possible embodiments, only given as a non-limiting example, with the help of the attached tables of drawings, where:
As can be seen in the attached figures, the depositing apparatus according to the invention, globally indicated with reference numeral 1, has a mobile part, globally indicated with reference numeral 2 and a fixed part, globally indicated with reference numeral 3, where the mobile part slides vertically, through the plate 4, on the guides 5, applied to the stops 6 of said fixed part and it is allowed to moved through the action of the motor 7, equipped with the threaded rod 8, the latter two elements being present on said fixed part. As can be seen in
Number | Date | Country | Kind |
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VI2005A0215 | Jul 2005 | IT | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/EP2006/007379 | 7/26/2006 | WO | 00 | 1/22/2008 |
Publishing Document | Publishing Date | Country | Kind |
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WO2007/012476 | 2/1/2007 | WO | A |
Number | Name | Date | Kind |
---|---|---|---|
3143314 | Bosco | Aug 1964 | A |
4669676 | Vehling | Jun 1987 | A |
6019303 | Cooper | Feb 2000 | A |
6260781 | Cooper | Jul 2001 | B1 |
7004419 | Hsu | Feb 2006 | B2 |
20050023401 | Hsu | Feb 2005 | A1 |
Number | Date | Country |
---|---|---|
33 47 031 | Nov 1984 | DE |
20 2006 006648 | Jul 2006 | DE |
0 199 935 | Nov 1986 | EP |
Number | Date | Country | |
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20100127111 A1 | May 2010 | US |