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Elbow formation apparatus

a technology of elbows and workpieces, applied in the field of elbow formation apparatus, can solve the problems of elbow workpieces with diameter elbows, slightly non-uniform elbow formation,

Inactive Publication Date: 2010-07-08
FORMTEK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012]It is another object of the present invention to provide a dual head elbow rotator apparatus, which can balance the forces incident upon the elbow workpieces during formation.
[0023]It is another object of the present invention to provide an elbow rotator that is capable of accommodating elbow workpieces of varying diameters.

Problems solved by technology

While the known hand manipulation of elbow workpieces is effective to a certain degree, such a process is manually difficult and time consuming, as well as oftentimes resulting in the formation of finished elbows having slightly non-uniform characteristics.
Additional complications arise when large diameter elbow workpieces are utilized.

Method used

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Examples

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Embodiment Construction

[0051]FIG. 1 illustrates a section of an elbow ductwork 10 prior to the elbow 10 being rotated into its final form. As can be seen in FIG. 1, the elbow 10 includes several sections 12 that have been formed by bending a sheet-metal workpiece, or the like, into a cylindrical shape about a common seam 14. Each of the sections 12 are separated from one another by an elbow joint 16 which has been cut and formed in the elbow 10 in a manner well known in the art. As will be appreciated, each of the section 12 of the elbow 10 shown in FIG. 1 must be turned with respect to one another in order to form the finished elbow 18, shown in FIG. 2.

[0052]As illustrated in FIG. 2, and in contrast to the elbow workpiece shown in FIG. 1, the seam 14 is no longer continuous along the length of the finished elbow 18 due to the individual rotation of the sections 12. During rotation, it is typical that each of the sections 12 experience an approximately 180° rotation with respect to adjacent sections in or...

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Abstract

An apparatus for forming and rotating interconnected sections of a cylindrical sheet metal workpiece to provide an elbow. The apparatus includes a frame, a head rotatably arranged within the frame and a tool ring mounted to the frame, the head and tool ring being co-operable for sectioning and joining segments of the workpiece. The apparatus also includes a drive drum mounted within the frame for gripping and rotating the segments, and a control module for selectively activating the head, the ring, and the drive drum to form an elbow.

Description

CROSS-REFERENCE OF RELATED APPLICATION[0001]WO This application claims the benefit of U.S. Provisional Application Ser. No. 61 / 143253, filed on Jan. 8, 2009, and herein incorporated by reference in its entirety.FIELD OF THE INVENTION[0002]This invention relates, in general, to a formation and rotation apparatus for use in forming and rotating interconnected sections of a cylindrical workpiece, and deals more particular with a formation and rotation apparatus that will automatically form and turn each section of cylindrical workpiece to its proper orientation even in the cases of large diameter elbow workpieces.BACKGROUND OF THE INVENTION[0003]Elbow sections of ductwork are typically formed as straight pieces of cylindrical ductwork prior to being manipulated into a finished elbow having a substantial bend attributed thereto. This manipulation has traditionally been accomplished by hand.[0004]While the known hand manipulation of elbow workpieces is effective to a certain degree, such...

Claims

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Application Information

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IPC IPC(8): B21D11/00
CPCB21C37/286
Inventor LAWLER, MATTHEW
Owner FORMTEK
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