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(1) Field of the Invention
This invention relates to devices for delivering stretch wrap film to a coil of cable or other filament type product.
(2) Description of Related Art
Previously known automated devices for stretch wrapping cable or other filament type product typically use a series of articulating motions to pull the stretch wrap film from a roll, engage it onto a rotating surface, cut the stretch wrap film and reset. The device of the invention accomplishes the same final package; however it does not require the same degree of articulating parts and is more compact than the known automated devices for stretch wrapping.
The device of the invention delivers stretch wrap to a coil or other filament type product using a stretch wrap module mounted on a traversing assembly in proximity to the wound product. As the winding coil nears completion, the device advances the stretch wrap film using a motor and rollers that contact the stretch wrap film. The stretch wrap film is supported by compressed air that blows through a series of jets on the stretch wrap device. The stretch wrap film extends to meet the vertex created at the point the cable meets the coil.
Once the stretch wrap film encounters the rotating coil, the film becomes engaged with the cable as it is wound onto the coil. The compressed air that was suspending the advancing film is now turned off, as it is no longer needed. The film is no longer advanced by the stretch wrap motor at this point in the process.
The winding action of the mandrel on which the coil is wound pulls both the cable product and the stretch wrap, which is now under tension. Once the coil has been wound to its desired predetermined length, the cable product is cut. The stretch-wrapping module now traverses to lay the stretch wrap film in a diagonal manner to contain the ends of the wound coil. Once sufficient stretch wrap is applied to the coil, a cutter pivots upwardly and severs the stretch wrap leaving a small section positioned between the air delivery jets for the next cycle to begin. The stretch wrapped finished product can then be removed from the stretch wrap device.
The above objects, features and advantages are readily apparent from the following description of a preferred embodiment of the best mode of carrying out the invention when taken in conjunction with the following drawings, wherein:
The perspective view of
The cable or coil product illustrated in
The stretch wrap module waits for the cable or coil wind to be completed.
With respect to
Once the stretch wrap film 4-1 engages the rotating cable or coil 4-2, the stretch wrap film 4-3 becomes engaged with the cable or coil as it is wound onto the cable or coil 4-2 The compressed air that was suspending the advancing film in now turned off, as it is no loner needed. It is no longer necessary to advance the film with the stretch wrap motor 2-2 (
Once the cable or coil product 5-1 has been wound to the predetermined length, the cable or coil product 5-1 is cut. The stretch wrap module 5-2 now traverses 5-3 to lay the stretch wrap film in a diagonal manner that encompasses the ends 5-4 of the cable or coil.
Once sufficient stretch wrap is applied to the cable or coil, cutter 6-1 extends and severs the stretch wrap film 6-2 leaving a small section positioned between the air delivery jets (as shown in
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Number | Date | Country | |
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20100139211 A1 | Jun 2010 | US |