An apparatus for forming a round or oval shaped duct for all AC systems in one continuous operation where two driving rolls advance a flat metal sheet to at least one multi-positioning bending roll, where the at least one bending roll is moveable to a bending position for different curvatures and a non-bending position. The driving rolls advance the sheet through while the bending roll bends the sheet to form the curved sides, and the bending roll in the non-bending position form the flat sides of the oval shaped duct. A position sensor detects the position of the flat metal sheet in the rolls to control the location along the sheet where the bending roll is moved to either of the bending or non-bending positions while the driving rolls are stopped. An adhesive dispenser joins both ends of the sheet, resulting in a complete duct.

Disclosure is a pocket flange forming device for a duct. When a plate enters a forming molding unit provided at the opposite sides of the forming device while being seated on a transfer unit, pocket flanges serving as duct connecting portion are formed on longitudinal edges on the opposite sides of the plate through the forming-molding method such as bending, folding, and compressing in addition to transferring, and the forming molding unit is rotated by 180 degrees to match with molding positions of forming rollers of the left and right forming molding unit, and a gap between the forming molding unit and another forming molding unit is set by a gap adjusting part, so that the pocket flanges having the same size or different sizes at the opposite sides thereof can be molded at the same time. Accordingly, the production performance and productivity of the pocket flanges can be enhanced.

Disclosure is a pocket flange forming device for a duct. When a plate enters a forming molding unit provided at the opposite sides of the forming device while being seated on a transfer unit, pocket flanges serving as duct connecting portion are formed on longitudinal edges on the opposite sides of the plate through the forming-molding method such as bending, folding, and compressing in addition to transferring, and the forming molding unit is rotated by 180 degrees to match with molding positions of forming rollers of the left and right forming molding unit, and a gap between the forming molding unit and another forming molding unit is set by a gap adjusting part, so that the pocket flanges having the same size or different sizes at the opposite sides thereof can be molded at the same time. Accordingly, the production performance and productivity of the pocket flanges can be enhanced.

A steel strip is fed and compressed between a driving roller and a compression roller to generate a stress greater than a yield stress in the steel strip and to elongate one periphery portion of the steel strip, which is on one side, more than the other periphery portion of the steel strip, which is on the other side, in a sending direction. The compression roller includes a first contact portion and a second contact portion. The second contact portion extends from an end of the first contact portion in the axial direction of the compression roller. The end of the first contact portion has an outer diameter less than an outer diameter of the second contact portion.

A steel strip is fed and compressed between a driving roller and a compression roller to generate a stress greater than a yield stress in the steel strip and to elongate one periphery portion of the steel strip, which is on one side, more than the other periphery portion of the steel strip, which is on the other side, in a sending direction. The compression roller includes a first contact portion and a second contact portion. The second contact portion extends from an end of the first contact portion in the axial direction of the compression roller. The end of the first contact portion has an outer diameter less than an outer diameter of the second contact portion.

The aim of the present invention is to provide a processing device and a processing method, with which it is possible to improve processing accuracy. A processing device processes a work piece which integrally includes a plate-shaped first curved-surface section and a plate-shaped planar-surface section that extends from the edge of the first curved-surface section in a bending manner. Furthermore, the processing device includes a first clamp device which includes a contact part that makes contact with the first curved-surface section, and a pressing part that presses the first curved-surface section in the direction of the contact part, and which restricts movement of the first curved-surface section in the plate thickness direction; a second clamp device which is movable in the plate thickness direction of the planar-surface section and supports the planar-surface section; and a machining device which machines the first curved-surface section.

First drive roller and second drive roller are coplanar and adjustable about an axis to increase or decrease the distance between the same to accommodate varying thicknesses in material. A first shaping roller and a second shaping roller that are also coplanar are provided with ends tiltable on an axis with respect to each other. While the first drive roller and the second drive roller remain parallel with respect to each other, the first shaping roller and the second shaping roller are not constrained in a parallel orientation, but rather can tilt with respect to each other to form sheet metal with complex shapes.

A production method for producing a heat exchanger assembly, which may serve for at least one of cooling and heating a functional component via a heat exchanger fluid, may include first providing a duct flat body, which may have a flow duct comprising a clear flow cross section, through which heat exchanger fluid may be flowable. The method then may include forming the duct flat body as part of a rolling process or as part of a roller burnishing process to form a bent cylinder jacket-shaped heat exchanger housing. The method then may include arranging the bent heat exchanger housing on a jacket surface of the functional component, and fixing the heat exchanger housing on the jacket surface of the functional component.

The present invention is directed towards an automated bending device for bending a strip of material into a desired shape. The device is either a single or dual bending tool with interchangeable rotating bending dies which allows for a faster transition from a break bend to a radius bend using air cylinders for positioning of the tools.

An apparatus for the support and the controlled advancement of a sheet in a bending machine for forming a cylindrical or conical structure, in particular of a truncated cone structure, comprises a base structural frame adapted to be positioned upstream of said bending machine, with respect to an advancement direction of the sheet, a plurality of conveying modules which can be mounted, removable, on the structural frame so as to generate a plan of modular support and advancement which can be configured geometrically according to the shape and dimensions of the sheet to be produced; the modular support and advancement plane is geometrically configured to keep the sheet metal part supported by the plane in a flat condition; an lifting and tilting device configured to vary the position of the structural frame, supporting the conveying modules, from a horizontal lying position to an inclined lying position in which the support and advancement plane is inclined downwards towards the bending machine; repositioning and position correcting members configured to orient and arrange the sheet in a correct position before starting a bending cycle and configured to correct, during the bending cycle, the position of the sheet to impose it a predetermined advancement trajectory towards and through the bending machine. The relative method is also envisaged.