A thermoplastic welding assembly includes a structural cage that supports a press and one or more hydraulic and pneumatic actuators. The press includes first and second plates that movable toward and away from each other to load and remove thermoplastic components to be held together for thermoplastic welding. Specifically, the first plate of the press includes non-conductive tooling inserts that are positioned to form a slot for a welding prove, and the second plates includes non-conductive tooling inserts that form cavities for plungers to move through. Plungers that are movable using the actuators are positioned in the cavities of the second plate, and compressible pressurizers are attached to the ends of the plungers. An operator uses electrical controls to move the plungers in the plunger cavities toward the thermoplastic components in the press to drive the pressurizers into the thermoplastic components and provide stabilizing pressure on the components during welding.

A welding method for welding a first component to a second component using a welding device including an upper tool mounted to an upper support for receiving the first component, a lower tool mounted to a lower support for receiving the second component as well as a preheating arrangement for preheating the first and/or the second component and a controller. A welding device in accordance with the welding method is further provided.

An automatic welding machine, comprising a supporting frame and a tensioning device for reversibly joining at least two opposing booms to one another and applying a tension force between these, having an open position in which the opposing booms are separated from one another by a gap and a closed position in which the opposing booms are joined to one another and braced with respect to one another. One boom is mounted in a torsion-proof manner on the tensioning device and is pivotable in relation to the other boom and can be moved out of the open position into the closed position by the pivoting of the tensioning device. The tension force is generated by way of a spring-loaded element disposed on the tensioning device, wherein the spring-loaded element, at one end, is rigidly connected to a supporting element of the tensioning device and, at the other end, is pivotably mounted on the supporting frame by way of a double swivel joint, and the spring-loaded element is tensioned by the pivoting of the double swivel joint out of the open position into the closed position, whereby a torque is applied onto the pivotable boom.

An automatic welding machine for lap welding the edges of plastic webs, comprising a movable supporting frame, a heating device for partially melting the plastic webs, at least two opposing, counter-rotating pressing rollers and/or advancing rollers, at least one of which being driven, and at least one driving device comprising a drive motor and at least one gearbox for driving the pressing and/or advancing rollers, wherein the pressing rollers and/or advancing rollers are driven by the driving device by way of at least one flexible shaft. Furthermore, the gearbox can be implemented as a worm gear mechanism comprising a worm that is seated directly on a motor shaft of the drive motor and two counter-rotating worm gears driven by the worm.

A tool for use in fusing an outlet fitting in the side wall of a plastic pipe has a base with three perpendicular guide rods. A movable plate is reciprocated on the guide rods in response to manual operation of a rack-and-pinion. The movable plate has a hole oriented to align a drill adapter and an outlet fitting adapter which are interchangeably inserted into the hole on an axis extending through a predetermined point on the longitudinal axis of the pipe. A retractable ratchet strap tightly girts the pipe to secure the tool against the pipe. The ratchet strap assures that the tool always maintains its original orientation on the pipe and the hole assures that interchanged drill and outlet fitting adapters are always returned to their original orientation in the tool. Therefore, the outlet fitting is always fused in its proper orientation in the pipe.

The embodiment includes: a planar graphite heater; a clamp device that moves the graphite heater, which is arranged between a first bonding surface W1a of a first composite material member and a second bonding surface of a second composite material member facing the first bonding surface, in a traveling direction with the graphite heater being in contact with the first bonding surface and the second bonding surface; and a control unit that controls the graphite heater to heat the first bonding surface and the second bonding surface while the graphite heater is in contact with the first bonding surface and the second bonding surface.

A method of integral hot-melt adhesion of a bicycle saddle contains steps of: a) providing material; b) putting the material into at least one mold; c) inserting a heating plate; d) melting; e) removing the heating plate; f) hot-melting adhesion; and g) taking out. Thereby, the body includes the rubber shell, the flexible layer, and the covering layer. The rubber shell is connected with the support shell by a hot-melting manner so that a peripheral side of the covering layer is bent to and is connected on the bottom of the rubber shell, thus obtaining a security, a smooth appearance, a moisture-proof purpose, a waterproof purpose, a shock absorption, a heat dissipation, an easy cleaning, and a low fabrication cost.

Provided is a composite material bonding apparatus that can reduce a cycle time when composite material members are bonded to each other. The composite material bonding apparatus includes a sheet-heater moving device that places a graphite heater at an insertion position between a first bonded surface of a first composite material member and a second bonded surface of a second composite material member such that the graphite heater is parallel to the first bonded surface and the second bonded surface facing the first bonded surface, and retracts the graphite heater to a retraction position from the insertion position. The first bonded surface and the second bonded surface are heated at the insertion position by the graphite heater, and then the graphite heater is moved to the retraction position by the sheet-heater moving device.

A method and a device (10) for welding at least two profiled sections (1) for window or door frames or leaves uses a heating unit (4) introduced between the profiled sections (2, 3) to be joined. At least two heating elements (5, 6) of the heating unit melt the profiled section ends (2, 3) at the end surfaces to be joined. In order to chamfer, in particular remove, a profiled section edge layer (20) of the profiled section ends (2, 3) along the layer surfaces (12, 13) thereof, at least one tool, in particular at least one cutting blade (7, 8), is arranged on the heating elements (5, 6) and is moved such that the material (9) to be melted is displaced into the profiled section interior (11) or into the interior (12) of the profiled section chambers (13). A compression device compresses the profiled section ends (2, 3).

The embodiment includes: a planar graphite heater; a clamp device that moves the graphite heater, which is arranged between a first bonding surface W1a of a first composite material member and a second bonding surface of a second composite material member facing the first bonding surface, in a traveling direction with the graphite heater being in contact with the first bonding surface and the second bonding surface; and a control unit that controls the graphite heater to heat the first bonding surface and the second bonding surface while the graphite heater is in contact with the first bonding surface and the second bonding surface.