Abstract: The invention relates to a method for joining a sealing seam of a tubular bag packaging by means of an ultrasonic applicator (10), characterized in that said ultrasonic applicator (10) generates ultrasonic waves at a frequency of between 0.1 MHz and 5 MHz, preferably between 0.5 MHz and 2 MHz. The invention also relates to a longitudinal seal joining device of a tubular bag machine for use with said claimed method.

Abstract: The invention relates to a cross seam joining device for a flexible packaging having at least one ultrasonic applicator (13a-13c), which is rotatably mounted on a shaft (13d) and can be rotated about an axis (13e) of the shaft (13d) arranged longitudinally to the cross seam (110, 111). The ultrasonic applicator (13a-13c) is designed to produce and bundle ultrasounds in a frequency range of 0.1 MHz-0.5 MHz, preferably from 0.5 MHz-2 MHz.

Abstract: The ultrasonic welding device includes a rotary support mechanical assembly rotatable about a rotation axis and operable to support a sheet over a circumference centered on the rotation axis, the sheet being continuously supplied; and a horn and an anvil operable to sandwich the sheet supported over the rotary support mechanical assembly to thereby weld the sheet. The rotary support mechanical assembly includes a rotary member rotatable about the rotation axis, a plurality of sheet support members each having a support surface for supporting the sheet, and a mounting section for allowing the plurality of sheet support members to be attached to the rotary member in a state that the sheet support members lie on the same circumference about the rotation axis, and allowing attaching positions of the sheet support members to the rotary member to be adjusted in radial directions centered on the rotation axis.

Abstract: A method for fabricating a preform (100) by providing a plurality of preform segments (101-103) which each define a portion of a preform (100), positioning said preform segments (101-103) in continuous contact with each other along at least one edge of said preform segments (101-103) such that said plurality of preform segments (101-103) define a cavity (107), and bonding each of said preform segments (101-103) to at least one other preform segment such that said plurality of preform segments (101-103) forms a continuous whole.

Abstract: According to one aspect of the present invention, an adhesive sheet material application device is disclosed, which includes a roller support bar, a handle, and a roller, where the handle and the roller are connected to the roller support bar, a portion of the handle is parallel to the roller, and the roller is rotatable. In another aspect of the present invention, a second handle is connected to the roller support bar and the second handle has a strap. According to another aspect of the present invention, a method of using the adhesive sheet material application device is disclosed, which includes securing a portion of adhesive sheet material to a surface, applying the adhesive sheet material to the surface with the adhesive sheet material application device, and regressing and eradicating bubbles between the adhesive sheet material and surface.

Abstract: A method of assembling a surgical instrument includes coupling a power bus to a switch base that has a top, a bottom, and side surfaces; adhering a membrane to the top surface of the switch base over the power bus to form a switch base assembly; positioning the switch base assembly within a first portion of a switch base cavity defined by a lower housing portion; and joining the lower housing portion with an upper housing portion. The upper housing portion defines a second portion of the switch base cavity. Joining the lower housing portion with the upper housing portion disposes the switch base within the first portion of the switch base cavity and prevents fluid from penetrating a proximal portion of the switch base cavity within which an electrical lead is coupled to the power bus.

Abstract: The present disclosure is directed methods for modifying molds of rotor blades of a wind turbine. In certain embodiments, the blade mold is constructed, at least in part, of a thermoplastic material optionally reinforced with a fiber material. In one embodiment, the method includes identifying at least one blade mold addition for the mold of the rotor blade and positioning the blade mold addition at a predetermined location of the mold of the rotor blade. Further, the blade mold addition is constructed, at least in part, of a thermoplastic material. Thus, the method includes applying at least one of heat, pressure, or one or more chemicals at an interface of the blade mold addition and the mold so as to join the blade mold addition to the mold. In further embodiments, the methods described herein are also directed repairing thermoplastic blade molds.

Abstract: Advanced ultrasonic welding components of Applicant's U.S. Pat. No. 8,376,016 are readily incorporated into new form-fill-seal machines, but owners of existing machines utilizing heat-seal stations were unsuccessful at swapping the sealing packages. Retrofit kits to a replace heat sealing stations with an advanced ultrasonic sonotrode and anvil comprise: a housing; a linear rail fixed thereto; first and second bearing carriages being slidable upon the rail; and first and second fluidic muscles. Each of the fluidic muscles is mounted with a first end fixed to a respective housing wall, and a second end fixed to a respective bearing carriage, permitting actuation of each carriage through pressurization/depressurization of the muscles. The advanced anvil and sonotrode may be secured to respective carriages.

Abstract: Moving the substrates quickly, as well as applying a large pressure to the substrates are required. A pressing apparatus for pressing a plurality of substrates stacked on one another, includes: a first stage that supports the plurality of substrates; a second stage that can sandwich the plurality of substrates between the first stage and the second stage; a driving section that moves the first stage towards the second stage so as to sandwich the plurality of substrates; and a pressing section that, when the driving section has made the first stage reach a predetermined position, applies a pressing force to the first stage to press the plurality of substrates between the first stage and the second stage, where the driving section and the pressing section are arranged next to each other so that at least part of the driving section and the pressing section overlaps in the moving direction.

Abstract: This vibration welding device is a device that vibration welds an airbag holding box and an installment panel having a tear line. The vibration welding device is provided with a support jig that carries and affixes the installment panel during vibration welding. The support jig is provided with a groove that permits thermal expansion during vibration welding of the installment panel at a position differing from the tear line.

Abstract: A reinforcement and/or lining method is provided, wherein a thermoplastic reinforcement and/or lining element is subject to mechanical energy impact and mechanical pressure by a tool so that reinforcement and/or lining material of the reinforcement and/or lining element is liquefied and pressed into porous material to reinforce the porous material. In at least one axial depth, the reinforcement and/or lining element is segmented as a function of the circumferential angle so that at this axial depth the circumferential wall of the initial opening in first regions is in contact with the reinforcement and/or lining element and in second regions is not in contact with the reinforcement and/or lining element.

Abstract: There is described a sonotrode for sealing an opening device onto a hole of a packaging material destined to from a sealed package, comprising: a sealing surface adapted to cooperate with packaging material in order to seal the opening device to the packaging material; a cavity bounded by an opening of sealing surface and adapted to receive the opening device and a ring made in an elastomeric material, partially protruding inside the cavity, and adapted to center a first axis of the opening device on a second axis of the sonotrode.

Abstract: An apparatus (1) for ultrasonic welding which comprises a sonotrode (2) with an elongate sonotrode head (4), on which an elongate welding surface (5) oriented in the longitudinal direction of the sonotrode head (4) is formed. The apparatus (1) further comprises at least two converters (11) for exciting ultrasonic vibrations of the sonotrode (2) in a direction of action (B). The direction of action (B) is preferably oriented substantially perpendicular to the longitudinal direction (A) of the sonotrode head (14). Finally, the apparatus (1) comprises a reaction body (3) as a reaction mass, the at least two converters (11) are arranged between the sonotrode (2) and the reaction body (3).

Abstract: A liner heat sealing device used to fuse two or more sheets of plastic or vinyl together along a straight line using a heating element and a temperature control unit to control the temperature of the device, the device having three separate temperature zones along a linear axis, including a front preheating segment, a central fusing segment and a rear cooling section, each section provided on the common linear sealing device.

Abstract: A method of operating a linear friction welding apparatus includes supporting a first work piece with a first fixture, supporting a second work piece with a second fixture, establishing a load between the first work piece and the second work piece along a press axis with a press assembly while the first fixture and the second fixture are in a fixed position relative to one another, simultaneously moving, with a vibrating assembly spaced apart from the press axis, the first fixture and the second fixture along a single weld axis so that both the first work piece and the second work piece are moved with respect to one another along the single weld axis after establishing the load, and heating at least a portion of the first work piece while simultaneously moving the first fixture and the second fixture under the load.

Abstract: An ultrasonic welding device includes a rotary support mechanical assembly rotatable about a rotation axis and operable to support a sheet over a circumference centered on the rotation axis, the sheet being continuously supplied; a horn and an anvil attached to the rotary support mechanical assembly to thereby revolve about the rotation axis and sandwich the sheet supported over the rotary support mechanical assembly to weld the sheet; a cam drum and a cam follower for driving the anvil in such a manner that the anvil moves relative to the horn; a holding member body; and a power transmission mechanism for distributing a power generated by the cam and the cam follower in such a manner the power is transmitted to the anvil and holding member body in opposite directions.

Abstract: A sonotrode that includes a sealing face; a front quarter wavelength region adjacent to the sealing face, wherein the front quarter wavelength region has been modified to increase the gain of the sonotrode; and a rear quarter wavelength region adjacent to the front quarter wavelength region, wherein the rear quarter wavelength region has been modified to create a non-uniform amplitude profile across the length of the sealing face of the sonotrode.

Abstract: The invention concerns a method for producing, by welding, a link between an element made from any material, for example metal, and an element made from a thermoplastic-matrix composite material, the second element being produced by depositing a textile yarn pre-impregnated with a thermoplastic material on the surface of the first element. The method mainly includes an operation consisting of producing an interface coating consisting of an epoxy resin filled with a thermoplastic material powder, coating the surface of the element made from any material with same, and leaving the coating to polymerize. It next includes an operation consisting simultaneously of forming the second element and welding same to the coating deposited on the surface of the first element by locally heating the two elements, when depositing the pre-impregnated textile on the first element.

Abstract: An ultrasonic module for use in package sealing systems that includes a moveable front jaw; an elognated sonotrode disposed within the front jaw, wherein the sonotrode includes an elongated sealing face, and wherein the width of the sealing face is at least 12 inches (30.48 cm); a moveable rear jaw; and an anvil mounted on the rear jaw opposite the sonotrode, wherein the anvil mechanically cooperates with the sonotrode to seal a package.

Abstract: A method for connecting a surface-structured workpiece (SSW) and a plastic workpiece using a joining tool with a sonotrode. The method includes: positioning the SSW and the plastic workpiece on an anvil such that a structured contact surface section (SCSS) of the SSW faces a contact surface of the plastic workpiece; positioning the sonotrode in contact with an outer surface of the SSW that is opposite to the SCSS; and applying pressure to the sonotrode and/or the anvil perpendicular to the contact surface to hold the workpieces fixed between the anvil and the sonotrode and applying ultrasonic vibrations to the workpieces by the sonotrode for a predetermined period of time to induce softening of the plastic workpiece and penetrate pin-like elements of the SCSS into the plastic workpiece.