Abstract: A hot pressing apparatus includes a positioning template having a forming region for placing a workpiece, a hot pressing template, a plurality of positioning blocks, and a lifting mechanism. A plurality of holes is formed in the forming region along a periphery of the forming region. The positioning blocks are movably disposed outside the forming region along the periphery of the forming region for positioning the workpiece in the forming region. The hot pressing template is movable between a hot pressing position and a releasing position for hot pressing the workpiece located in the forming region cooperatively with the positioning template when moving to the hot pressing position. The lifting mechanism includes a plurality of pillars movably disposed in the holes respectively and a driving device for driving each pillar to extend out from the corresponding hole so as to lift the workpiece.

Abstract: A method of connecting parts relative to one another includes the steps of providing a first part, the first part having an opening; providing a second part, the second part having thermoplastic material in a solid state; arranging the first part and the second part relative to one another, so that the second part reaches into the opening, while a volume with an undercut is defined in the opening; causing a mechanical pressure and mechanical energy to act on the second part until at least a part of the thermoplastic material is caused to liquefy and to fill the volume; and causing the thermoplastic material to re-solidify, thereby anchoring the second part in the first part.

Abstract: In an apparatus for successively making plastic bags, a receiver plate 5 is fixed to a support plate 7. The support plate 7 extends widthwise of the webs of film material 2H and 2L to protrude on one of opposite sides of the webs of film material 2H and 2L. An elastic support device is disposed on the one side of the webs of film material 2H and 2L to elastically support the receiver plate 5 and the support plate 7. An attitude hold device is disposed on the one side of the webs of film material 2H and 2L to act on the support plate 7 so that the receiver plate 5 and the support plate 7 are held in attitude not to be inclined when being lowered and raised.

Abstract: An apparatus for distributing a hydrophobic material in a hydrophilic substrate includes a first plate, a second plate, a heater operatively connected to the first plate and configured to heat the first plate to a first temperature that is greater than a second temperature of the second plate, and an actuator configured to move the first plate and second plate together with a hydrophilic substrate between the plates. The first plate and second plate form a temperature gradient to enable a hydrophobic material on one side of a hydrophilic substrate that faces the second plate to penetrate into the hydrophilic substrate towards the first plate.

Abstract: The method for welding profiled elements made of a plastic material, in particular PVC, comprises the steps of: preparing two profiled elements (3) made of a plastic material, arranged with respective zones to be welded (4) facing one another; heating the zones to be welded (4); before the heating step, the step of making a groove (19) in correspondence to a peripheral edge of each of the zones to be welded (4); coupling the zones to be welded (4) to one another, by pressing the profiled elements (3) against one another to keep the zones to be welded (4) in reciprocal contact, the step of coupling the zones to be welded (4) defining a sub-step of melting the zones to be welded (4) into one another to define a welding bead and comprising the sub-steps of: arranging pressing means (27, 28) in correspondence to the grooves (19) to define, in collaboration with the grooves (19), a containing compartment (19a) of the welding bead, the pressing means (27, 28) comprising: a first work surface (62) having a prot

Abstract: The invention is a laminating process which is directed toward economical production methods for scalable amounts of production which develop properties suitable for a broad based product line. In particular, the product is capable of important key components of commercial properties such as adhesion, scratch resistance, chemical inertness, and bending without failure.

Abstract: The displacement mechanism includes: an urging mechanism that urges an anvil roller toward an ultrasonic horn in such a manner that output surfaces and a welding surface move closer in the normal direction thereof; and a pressed member that has guide surfaces against which the outer surface of the anvil roller, positioned within non-welding areas, are pressed by an urging force of the urging mechanism, the pressed member being fixed to a sheet holding roller in a state where a pressed surface is disposed within the width-direction range of a slit. In response to the movement of the anvil roller from a welding area to the non-welding areas, the guide surfaces of the pressed member guide the anvil roller in a direction in which the output surfaces and the welding surface move away from each other.

Abstract: A housing is described that may include a main portion having at least one wall defining an opening that may have a perimeter. The at least one wall may have a rib and an inner wall extending therefrom about the perimeter of the opening. The inner wall may have an air relief slot formed therein. The housing may further include a cover. The cover may have an edge defining a perimeter. The cover may include a rib extending from the edge about the perimeter of the cover. The main portion rib, the inner wall and the cover rib may cooperate for attachment of the cover to the main portion and to define an air chamber between the cover rib and the inner wall.

Abstract: A specially designed sonotrode and anvil are adapted to be used in combination for ultrasonic welding of work pieces, to produce a narrower weld region, but one exhibiting greater durability, thereby permitting use of less packaging material. The contact surfaces comprise a surface of the anvil having a plurality of energy directors, where the plurality of energy directors are arranged into a three-dimensional grid pattern to be capable of distributed vibration-transmissive contact. The energy directors may comprise a series of plateau surfaces being regularly spaced apart from each other in a first direction, and in a second direction that is orthogonal to the first direction, to form the grid pattern. The rectangular-shaped plateaus may be spaced apart by valleys. Engagement of the energy directors of the anvil with the corresponding surface of the sonotrode may cause minor elastic deformation of work pieces positioned therebetween prior to ultrasonic welding.

Abstract: The present invention relates to an output stage for adapting an AC voltage signal of an ultrasound generator to a converter connectable to the output stage, wherein the output stage has two input terminals for receiving the AC voltage produced by the ultrasound generator and two output terminals for outputting an adapted AC voltage, as well as an output transformer with a primary coil having a number n1 turns and a secondary coil with a number n2 turns, the output transformer having a main inductance LH as well as a leakage inductance L?, the two input terminals being connected to one another via the primary coil and the two output terminals being connected to one another via the secondary coil.

Abstract: Provided is a lightweight anvil roller and an ultrasonic welding device provided therewith. The anvil roller has: a supported section that is rotatably supported by a holding mechanism via a rotary shaft in such a manner that the anvil roller can come into rolling contact with a sheet; an outer peripheral section having a welding surface over which the sheet is welded between the outer peripheral section and an ultrasonic horn during rolling contact with the sheet; a thin section that is formed between the supported section and the outer peripheral section in such a manner that the thickness of the thin section is smaller than the thickness of the outer peripheral section in the axial direction of the rotary shaft; and a vibration proof member provided on the thin section.

Abstract: A wearing article includes front and rear side edges respectively joined by seam arrays extending in a longitudinal direction Y, a waist-opening, and a pair of leg-openings. The wearing article further includes an inner sheet, an outer sheet and a liquid-absorbent core sandwiched between these inner and outer sheets. The inner and outer sheets are formed of heat-sealable fibrous nonwoven fabrics containing thermoplastic synthetic resins. Each of the seam arrays of the diaper includes a plurality of seam-welded regions and a seam-nonwelded region left behind in the seam array. In the seam array, the seam-welded regions arranged so as to be aligned in longitudinal and transverse directions, each substantially shaped in a square, partially lack at a position differentiated for every one of specified patterns.

Abstract: A linear-friction-welding machine and a method of linear friction welding are provided which permit continuous clocking or angular positioning between a pair of workpieces without the complexity and cost associated with making either the weld head or the table of the friction-stir-welding machine rotatable. The linear-friction-welding machine may include a stationary or a movable table, a weld head, and a tapered cylindrical collet, adapted to engage a tapered cylindrical opening of a socket. The socket is either supported by the table or retained by the weld head, to permit controlled, continuous clocking of one of the workpieces, retained by the collet, relative to the other workpiece, which is either supported by the table or retained by the weld head such that the workpieces may be mutually biased and linearly oscillated relative each other.

Abstract: The described embodiments relate generally to ultrasonic welding and more particularly to performing an ultrasonic welding operation while rotating one part relative to a mating part. A non-uniform energy director can be disposed along a mating surface of a first part. The energy director can maintain a constant cross-sectional area while having a smaller height near a pivot point for the rotation and a larger height away from the pivot point. The varying height of the energy director can allow the tip of the energy director to come in contact with a second part rotating relative to the first part at approximately the same time during the ultrasonic welding process.

Abstract: A device (20) for bonding or welding a membrane, including an undercarriage (30) for supporting the device on the membrane at least at one contact point, which is formed by a pressing element (40) for pressing the membrane onto a metal plate to be bonded or welded thereto, and at least at two further contact points, which are formed by castors (31, 32). A frame (42) extends upwards from the undercarriage (30), wherein the device (20) can be manoeuvred using the frame. The pressing element (40) includes a heating device (46), which is designed as an induction coil, by which the metal plate, which is provided with an adhesive or weldable coating, can be heated. An induction generator and a control and cooling device thereof are mounted in or on a housing (50), which is fixed to the frame (42) at a distance (A) above the undercarriage (30). The device (20), which is formed as one part, can be tilted for moving around a castor axis (28) and can then be lowered via the metal plate onto the membrane.

Abstract: The invention relates to a roll device (300) that comprises: a roll (100) removably connectable to a support structure (200); —a heating element (7) seated within the roll (100); an electrical connector for supplying the heating element (7). The roll device is characterized in that the connector comprises: —a first contact (12) arranged in a bottom wall (8) of the roll (100); —a second contact (13) arranged in the support structure (200) and adapted for engaging the first contact (12) in pressing contact, wherein one between the first (12) and the second (13) contact is movable between a retracted position and a position extended towards the other contact and permanently stressed in the extended position.

Abstract: The present invention relates to a novel device to manufacture polyurethane foam boards used in structurally insulated panel known as insulated building material press. The press enables the application of pressure across a large area while foaming and curing polyurethane under pressure, curing glue or otherwise bonding materials into a finished product. The press uses a simple principle to distribute pressure evenly across the platens avoiding the need for heavy and expensive parts used in the construction of building material presses of the prior art.

Abstract: A film sticking device includes a pressing part configured to press a film by contacting a surface of the film and pressing the film. A supporting part is coupled to the pressing part and supports the pressing part. A guiding part is configured to guide the supporting part and move the supporting part between a first position and a second position. The second position is separated from the first position. A body has one end coupled to the guiding part. The supporting part is positioned at the first position when a center part of the pressing part contacts the surface of the film.

Abstract: This invention relates to a technology for bonding pieces of nonwoven material to each other by fluid entanglement or needling technology.

Abstract: An apparatus and method for improving friction spot welding process is described herein. According to the method of the present invention, two different metal sheets of similar or dissimilar material can be joined together with the help of a filler material that is filled in a cavity formed at the top of the upper metal sheet. Additionally, either a reinforcement material or an alloy element or combination of both is added in the cavity. The material is plasticized as the filler material is rotated and pushed in the cavity under the application of force. The weld is completed by filling the entire filler material at the weld interface. The addition of reinforcement material or an alloy element enables in customization of interface material properties enhancing the joint strength.