Abstract: A machine and method for welding first and second fabric panels together. The machine includes a welding head which travels along a frame, applying heat and pressure to an overlapped region of the panels. An infrared camera is positioned to monitor the seam temperature after formation. The camera takes a thermal image across the width of the seam and transmits the data to a central processing unit (CPU). Programming in the CPU compares the thermal image data with a pre-programmed ideal temperature profile. Based on the comparison, the CPU makes adjustments to one or more of the speed of travel of the welding head, and the heat and pressure applied by the welding head, if necessary. The CPU activates an alarm to alert the machine operator if the adjustments aren't successful. The machine further includes a marking assembly for identifying regions on the welded seam which may require post-production testing.

Abstract: A dual roll fabric welding or seaming machine is configured to seam pieces of sheet material to one another as the pieces move downstream. The machine includes modular gantries and various actor devices which may be readily mounted on any of the gantries to interact with the moving sheet material to achieve various functions, such as seaming pieces of sheet material together, forming hems, applying grommets to the sheet material, printing on the sheet material, connecting reinforcement strips or ropes to the sheet material and cutting the sheet material.

Abstract: A system and method for welding edge seams at the edges of fabric is presented. A method begins by lowering a fabric pre-fold bar onto a piece of fabric. A pre-aligned portion of the fabric is pushed on top of the pre-fold bar so that the pre-fold bar is between the portion of fabric on top of the fabric pre-fold bar and other fabric below the pre-fold bar. The fabric on top of the fabric pre-fold bar is folded edge fabric and fabric not on top of the fabric pre-fold bar is not folded edge fabric. A folded edge is formed between these two sections of fabric. The method pinches some of the fabric at the folded end and then pulls the folded edge fabric off of the fabric pre-fold bar. After that, the method welds at least some of the folded edge fabric to the not folded edge fabric.

Abstract: Methods and other embodiments associated with a fabric welding machine are presented. The fabric welding machine includes a base, a welding machine body, and a support beam with a first end and a second end. A first roller is positioned adjacent to the first end of the support beam opposite the welding machine body. A swing arm with a body end and a roller end is attached to the welding machine body. The roller end is opposite the welding machine body and is configured to move to a first position and a second position. A heat element attached to the first end of the support beam.

Abstract: A seaming machine and method are provided for seaming segments of sheet material to one another to form larger sheets. The machine typically includes a frame with a pair of spaced seaming devices mounted thereon for respectively seaming opposed edges of the segments of sheet material to one another. The process allows for the seaming of multiple sheet segments while the sheet segments remain atop a work surface. Relative back and forth movement between various components and the work surface typically facilitate the process.

Abstract: A relatively small and lightweight portable plastic welding machine is suitable for use on a table top. The welding machine has stationary and traveling modes for welding one or more sheets of flexible plastic material. A single motor is provided for driving rotation of pinch rollers adjacent a welding tip and rotation of a drive wheel to cause travel of the machine. A clutch provides the ability to easily switch between the stationary and traveling modes.

Abstract: A seaming machine and method are provided for seaming segments of sheet material to one another to form larger sheets. The machine typically includes a frame with a pair of spaced seaming devices mounted thereon for respectively seaming opposed edges of the segments of sheet material to one another. The process allows for the seaming of multiple sheet segments while the sheet segments remain atop a work surface. Relative back and forth movement between various components and the work surface typically facilitate the process.

Abstract: Methods and other embodiments associated with a fabric welding machine are presented. The fabric welding machine includes a base, a welding machine body, and a support beam with a first end and a second end. A first roller is positioned adjacent to the first end of the support beam opposite the welding machine body. A swing arm with a body end and a roller end is attached to the welding machine body. The roller end is opposite the welding machine body and is configured to move to a first position and a second position. A heat element attached to the first end of the support beam.

Abstract: Methods and other embodiments associated with a fabric welding machine are presented. The fabric welding machine includes a base, a welding machine body, and a support beam with a first end and a second end. A first roller is positioned adjacent to the first end of the support beam opposite the welding machine body. A swing arm with a body end and a roller end is attached to the welding machine body. The roller end is opposite the welding machine body and is configured to move to a first position and a second position. A heat element attached to the first end of the support beam.

Abstract: A system is provided for filling and sealing bags and is especially useful with woven polybags formed of thermoplastic material. The system includes a plastic welder having a folding device for folding over a portion of the filled bag which is sealed by a welding tip and pinch rollers. The welding tip may be moved between welding and non-welding positions based on a bag sensor or timer. A contact prevention member prevents the welding tip from contacting and damaging a coating on a portion of the bag. The system is configured to form a substantial seam without using hot melt adhesive.

Abstract: A welding machine having a frame that includes end supports spanned by a top beam with a truncated V-shaped cross-section and a method of using the same. A vacuum track assembly disposed vertically beneath the top beam retains fabrics to be welded on a perforated surface using suction. A welding head travels along the top beam and applies heat and pressure to the surface to weld the fabrics together. The top beam and vacuum track assembly are extendable by including additional unit segments from which the beam and assembly are constructed.

Abstract: A welding machine having a frame that includes end supports spanned by a top beam with a truncated V-shaped cross-section. A vacuum track assembly disposed vertically beneath the top beam retains fabrics to be welded on a perforated surface using suction. A welding head travels along the top beam and applies heat and pressure to the surface to weld the fabrics together. The top beam and vacuum track assembly are extendable by including additional unit segments from which the beam and assembly are constructed.

Abstract: A seaming machine and method are provided for seaming segments of sheet material to one another to form larger sheets. The machine typically includes a frame with a pair of spaced seaming devices mounted thereon for respectively seaming opposed edges of the segments of sheet material to one another. The process allows for the seaming of multiple sheet segments while the sheet segments remain atop a work surface. Relative back and forth movement between various components and the work surface typically facilitate the process.