A welder for constructing and welding plastic fenestration structures, including parts storage bins structured to store and support parts to be assembled to create the plastic fenestration structures; wheels that receive the parts from the parts storage bins; aligners that position the parts relative to one another; heating plates that apply heat to ends of the parts thereby rendering at least a portion of the ends of the parts molten; parts shifters operably shiftable between a first position adjacent the wheels and a second position remotely located from the wheels that shift the parts to a fusing position in which adjacent parts are abutted together at a fusing station to produce the plastic fenestration structure; and at least one cooling station at which the plastic fenestration structure is held.

Provided is a tube joining apparatus that allows a user to easily and properly set tubes to be joined, and can prevent occurrence of joining failures due to tube setting errors. A tube joining apparatus 1 includes a housing 10, a lid 22 relatively movable toward and away from the housing, a tube holding part 23 that holds a first tube T1 and a second tube T2 individually in a state of being placed side by side in an oblique direction D1 with respect to a height direction Z of the housing, and a tube pressing part 25 that presses the first tube and the second tube against each other as the lid relatively moves toward the housing.

A welder for constructing and welding plastic fenestration structures, including parts storage bins structured to store and support parts to be assembled to create the plastic fenestration structures; wheels that receive the parts from the parts storage bins; aligners that position the parts relative to one another; heating plates that apply heat to ends of the parts thereby rendering at least a portion of the ends of the parts molten; parts shifters operably shiftable between a first position adjacent the wheels and a second position remotely located from the wheels that shift the parts to a fusing position in which adjacent parts are abutted together at a fusing station to produce the plastic fenestration structure; and at least one cooling station at which the plastic fenestration structure is held.

The process for the manufacture of windows/doors (1), characterized by the fact that it comprises the following steps: providing at least one inner panel (2) for windows/doors; providing a plurality of plastic profiled elements (3) for windows/doors, each of the profiled elements (3) comprising at least two areas to seal (5), coupleable to the areas to seal (5) of the other profiled elements (3), and at least one longitudinal slot (6), in which a respective perimeter side (4) of the inner panel (2) is insertable; performing a step of mechanical machining by chip removal on at least one of the areas to seal (5); heating the areas to seal (5); coupling the heated areas to seal (5) to one another by pressing the profiled elements (3) one against the other to maintain the areas to seal (5) in mutual contact and define the frame for windows/doors, the coupling taking place with the inner panel (2) inserted in the longitudinal slots (6) to define a window/door (1) which is composed by the frame and by the inner panel (2) contained in the frame.

A portable table top welder for welding plastic material webs, the portable table top welder including a frame including a carrier housing and a support arm at which a welding device is arranged; at least one transport roller including a rotatable transport roller axle and at least one contact pressure roller that is rotatably supported at the carrier housing, wherein a weight is arranged at an eccentrical element which is rotatably connected at one side by a concentrically supported eccentrical element axle at the carrier housing and rotatably connected at another side by an eccentrically supported contact pressure roller axle at the contact pressure roller. The table top welder handles and transports easily and can be mounted on a table or on another carrier structure in a disengageable manner.

An apparatus for thermoplastic welding includes at least one tool configured to support first and second thermoplastic composite parts in a first welding position having one or more joint lines between the first and second thermoplastic composite parts. The tool includes a plurality of induction coils. The apparatus further includes a susceptor removably positioned along the one or more joint lines. The susceptor is configured to heat the one or more joint lines when exposed to a magnetic flux generated by the plurality of induction coils to bond the first and second thermoplastic composite parts along the one or more joint lines. The apparatus also includes a susceptor removal device coupled to the susceptor and configured to remove the susceptor during bonding of the first and second thermoplastic composite parts.

An earplug assembly includes a first earplug, a second earplug, and a cord including a first end, a second end, each earplug including a stem and a sound attenuating body. A method for preparing the earplug assembly includes attaching the first and second ends of the cord to the first and second earplugs, respectively, by contacting a hot tip to the proximal end of the stem of the earplug to form an attachment point, removing the hot tip, and contacting or inserting the end of the cord to the attachment point to thermally bond the end of the cord to the stem of the earplug.

A system and method are provided for manufacturing a plastic pallet having a plurality of runner assemblies with embedded support structures. Each runner assembly may include a top runner board, a bottom runner board, and a plurality of support structures embedded into the top and bottom runner boards. The pallet may be manufactured using heat to at least partially penetrate and soften the runner boards, to soften the support structures, and to weld the support structures to the runner boards in an embedded manner.

The machine (1) for sealing plastic profiled elements comprises: a base frame (6); a pair of retention members (7, 8), adapted to retain respective plastic profiled elements (P) having respective areas to seal (Z) with a first main edge (2a), a second main edge (3a), a first lateral edge (4a) and a second lateral edge (5a); a heat-sealing element with heated plate (11); sliding means (9, 10) of the retention members (7, 8); removing means (13, 14) adapted to remove material from the areas to seal (Z) at least at the first lateral edges (4a); lateral containment means (23, 24), which are adapted to abut on the areas to seal (Z) at the first lateral edges (4a) for the containment of a lateral sealing bead (S) and which comprise at least a V-shaped element (23) having two sides (25) arranged in a V pattern which are adapted to abut on at least a portion of respective first lateral faces (4) of the profiled elements (P).

An apparatus for thermoplastic welding includes at least one tool configured to support first and second thermoplastic composite parts in a first welding position having one or more joint lines between the first and second thermoplastic composite parts. The tool includes a plurality of induction coils. The apparatus further includes a susceptor removably positioned along the one or more joint lines. The susceptor is configured to heat the one or more joint lines when exposed to a magnetic flux generated by the plurality of induction coils to bond the first and second thermoplastic composite parts along the one or more joint lines. The apparatus also includes a susceptor removal device coupled to the susceptor and configured to remove the susceptor during bonding of the first and second thermoplastic composite parts.