Abstract: An ultrasonic generator comprising an input module for receiving a power signal. An output module for outputting an ultrasonic signal is also included in the generator. A motherboard is coupled to both the input module and the output module. The motherboard includes a digital controller adapted to control the input module and the output module.

Abstract: A bonding tool and method for bonding a semiconductor chip to a surface is provided wherein the bonding tool includes a bonding tip comprising a ceramic material, preferably titanium carbide. The bonding tip is operative to hold the chip and a bonding energy generator such as an ultrasonic transducer is coupled to the bonding tip for applying bonding energy to the bonding tip and the chip to bond the chip to the surface. The bonding tip may further include martensite such that the titanium carbide is present in a hard phase and the martensite is present in a soft phase as a binder for the same.

Abstract: An object of the present invention is to provide a welding system wherein the positional accuracy of welding and the quality of welding are improved. The present welding system includes an ultrasonic welder for welding a plurality of webs W together while carrying the webs W. The ultrasonic welder includes: an anvil roller 10 including a pair of anvils 11, 12; a first ultrasonic horn 21 and a second ultrasonic horn 22 that apply vibration energy to the webs W in cooperation with the pair of anvils 11, 12. The pair of anvils 11, 12 are provided symmetrically with each other with respect to an axis line O of the anvils roller 10. The first and second ultrasonic horns 21, 22 apply the vibration energy to the webs W simultaneously while each of the anvils 11, 12 faces the first or second ultrasonic horn 21, 22.

Abstract: An ultrasonic welder includes a housing having an ultrasonic transducer, a horn mounted to one end of the housing, a motor having a shaft, and a mounting assembly having a fastener such as a threaded screw. One screw end is coupled to the motor shaft to rotate as the motor shaft is being driven. The other screw end extends into a threaded screw receiver running within the housing. Upon rotating in one direction, the screw engages more threads of the screw receiver such that the housing with the horn move upward. Upon rotating in the other direction, the screw engages less threads of the screw receiver such that the housing with the horn moves downward. A linear transducer extends from the mounting assembly into the housing to monitor the horn position. A pair of guide shafts extend from the mounting assembly into the housing to stabilize the horn positioning.

Abstract: Pile weatherstripping (20) having an integral fin is made by wrapping a fin material around a traveling mandrel or band (14), winding pile material around the fin material and the band (14), attaching a pair of backer elements to the pile material along opposite edges of the band, and then cutting the fin material and the pile material to produce simultaneously two pile weatherstrips. Stationary and traveling elements may be employed to facilitate cutting and produce fin above the pile weatherstrips (20).

Abstract: The present invention relates to a seaming apparatus (10) for joining, along a seam without thread, two or more flexible sheets (12, 14). The apparatus comprises bonding means (16, 18) for bonding together at least two flexible sheet materials. The bonding means has a nip portion (36) for releasably engaging together sheet material, and drive means (20, 22) formed and arranged for engaging sheet material, and moving it incrementally through the bonding means. The drive means is formed and arranged to co-operate with the nip portion so as to sequentially nip then drive material through the apparatus wherein only one of the nip portion or the drive means is in contact with sheet material at any given moment. A method for joining flexible sheets by use of the apparatus of the invention is also described.

Abstract: An ultrasonic welding machine having a tool in the form of, for example, a sonotrode. In order to allow for an optimal utilization of the working surfaces of the sonotrode, it is proposed to move or mount the sonotrode in a desired position with respect to the element that connects the ultrasonic welding machine to the sonotrode by rotating the sonotrode around its longitudinal axis as well as a transverse axis running perpendicular thereto.

Abstract: In ultrasonic welding of a seam, such as for creation of an imaging belt, an ultrasonic welding horn is applied to an overlap area. The welding horn has a contact surface within a certain set of dimensions comparable to the overlap area. The welding horn defines a conical main body that tapers to the dimensions of the contact area through a short length.

Abstract: An ultrasonic welding apparatus is provided having an anvil preferably connected to a lever assembly. The lever assembly is preferably connected to a carrier via a holder, wherein the holder is pivotable with respect to the carrier, and the lever assembly is pivotable with respect to the holder. An urging device may also be provided to urge the anvil toward an ultrasonic hammer, more preferably away from the carrier.

Abstract: A head assembly is provided with a mounting surface, and an integrated circuit chip which is mounted on the mounting surface and processes signals. The integrated circuit chip is covered by a layer which prevents generation of foreign particles from the integrated circuit chip by the provision of the layer.

Abstract: An ultrasonic bonding hone is provided with a bonding pressing surface which extends in one direction and on which ultrasonic wave energy is concentrated. The bonding pressing surface is provided with a pair of protrusions extending in parallel to the direction in which the bonding pressing surface extends on opposite sides of the bonding pressing surface spaced from each other in the direction of width of the bonding pressing surface.

Abstract: An ultrasonic tool, for bonding two materials to each other by joining a face of one of the materials to a face of the other material using the action of ultrasonic waves applied to one of the materials through another face of the one of the materials, wherein the ultrasonic tool has a coating layer comprising chromium oxide as a main component formed on at least the surface of the tool that is in contact with the face of the one of the materials through which the ultrasonic waves are applied to the one of the materials. An ultrasonic bonder provided with the ultrasonic tool is also disclosed.

Abstract: The invention provides a water blocking tape for use in a variety of cable designs, such as power cable, data communications cable and telecommunications cable. A water blocking tape according to the invention includes layers of lightweight nonwoven fabric with one or more swellable water blocking compounds, such as water absorbent polymers, disposed between the layers. The nonwoven fabric layers are bonded in a pattern using an ultrasonic bonding technique. The bonding pattern helps to contain and to restrain movement of the water blocking compounds between the layers. The bonding pattern compartmentalizes the water blocking compounds to prevent pooling of the compounds and to facilitate a substantially consistent distribution of the compounds between the layers such that when a tape contacts water, the tape achieves a substantially consistent swell height.

Abstract: The present invention is directed to a method of wrapping products in films, including the steps of: positioning the products on a first sheet of film which is continuously advanced in one transport direction; covering the products with a second sheet of film, which is continuously advanced in the transport direction and which is aligned plane-parallel to the first sheet of film; ultrasonically welding the first and second films on the outer edges of the products in each case and ultrasonically separating the overlapping films at selected positions; separating the wrapped products or groups of wrapped products.

Abstract: Component (3) is pressed onto a circuit board (4) so that their respective metal interconnects (5), (6) are in close contact with each other, and ultrasonic vibration is applied to the suction nozzle (14) holding the component (3). Friction is thereby generated between metal interconnects (5), (6) whereby the component (3) is bonded on circuit substrate. Suction nozzle (14) for handling components is made of stainless steel and has a working face (14a) provided with a hardened layer (14b), or alternatively, suction nozzle (14) may have a suction head (14c) having a working face (14a) made of cemented carbide. Working face (14a) of suction nozzle (14) is refined by polishing as required during the mounting operation.

Abstract: The ultrasonic mounting method is capable of uniformly bonding bumps of an electronic component to a circuit board and improving reliability of ultrasonic-mounting the electronic component. The method comprises the step of applying ultrasonic vibrations to the electronic component so as to flip-chip-bond the electronic component to the circuit board having electrodes. The ultrasonic vibrations are applied in a direction parallel to a surface of the electronic component, and loads are vertically applied to the surface of the electronic component in conjunction with vibration cycles of the ultrasonic vibrations.

Abstract: A method of bonding and a bonding apparatus for a semiconductor chip uses ultrasonic vibration but can improve the bonds between electrode terminals of a semiconductor chip and a substrate. In a method of bonding a semiconductor chip that places electrode terminals of the semiconductor chip and electrode terminals of a substrate in contact and applies ultrasonic vibration to the semiconductor chip to bond the electrode terminals of the semiconductor chip and the substrate together, the ultrasonic vibration is compressional waves that are transmitted to the semiconductor chip and is set so that a half-wavelength of the ultrasonic vibration is a length given by multiplying a gap between adjacent electrode terminals in a direction of the compressional waves by a reciprocal of a natural number, and maximum amplitude points are located at positions of the respective electrode terminals of the semiconductor chip and the substrate.

Abstract: The present invention is directed to an integrated flexure mount scheme for dynamic isolation of ultrasonic transducers for use with a wire bonding machine. The transducer has a body of a generally elongated shape having front, rear, and main portions. The transducer has mounting flanges for mounting the transducer to the wire bonding machine. The mounting flanges have at least two integrated flexures that connect the mounting flange to the main portion of the transducer body and define at least one flexure orifice.

Abstract: A device for the fluid-tight sealing and separation of a pipe section by means of an ultrasonic welding device, including a sonotrode with a first welding surface, an anvil with a second welding surface that is assigned to the first welding surface, and a separating element which starts from the sonotrode and extends past the first welding surface. In order to be able to separate a section of a pipe in such a way that the pipe is sealed in a fluid-tight manner regardless of the side on which the section is located and without having to change tools or reposition the ultrasonic welding device, the sonotrode is provided with two first welding surfaces which are placed at a distance from each other and to which two second welding surfaces of the anvil are assigned, the separating element is disposed between the two first welding surfaces, and a recess which is located between the two second welding surfaces of the anvil is assigned to the separating element.

Abstract: A method and device for making multiple connections between electrical conductors surrounded by external insulators in overlapping flexible cables by ultrasonic welding. Overlapping conductors to be connected are arranged on a surface of a carrier disposed between a sonotrode and an electrode, the sonotrode and electrode are sequentially aligned the with overlapping points to be welded, and the conductors are ultrasonically welded at each of the overlapping points. The carrier either includes the electrode at least in designated areas, or includes penetrations constructed and arranged to receive an electrode in designated areas.

Abstract: The invention relates to an ultrasound horn comprising a fixing section (1a), a sealing section (1c) and a transfer section (1b) extending therebetween, one or more elongate recesses (3, 4) being formed at least in the transfer section (1b), and said recesses (3, 4) extending in a direction (A) between the fixing section (1a) and the sealing section (1c). Said recesses (3, 4) have a rounding-off encompassing, along the rounding-off, at least a first portion (5a, 7a) with a first radius of curvature, a second portion (5b, 7b) with a second radius of curvature and a third portion (5c, 7c) with a third radius of curvature. The invention also relates to a novel forming of the transfer section (1b) and recesses (9, 10) at the ends of the sealing section (1c).

Abstract: A method for increasing the bond strength of ultrasonic bonds in elastomeric materials comprising elongating the elastomeric materials prior to ultrasonically bonding the materials.

Abstract: A single pass process and apparatus for manufacturing a folded yard sign from a pre-cut sheet previously coated on both sides with a fusible polymer includes the steps of printing an image on an outside of the sheet, curing the image, scoring the printed sheet, folding the scored sheet, ultrasonically sealing regions along side edges of the folded sheet, and stacking the sealed sheets, which are finished sign products ready for packaging. The ultrasonic sealing fuses the polymer coated inside surfaces along the edges of the folded sheet. The sealed side edges form a sign support receiving pocket in the finished sign member in cooperation with a folded edge of the sign member.

Abstract: A suction-side transmission or engine filter includes a filter bag assembly having an outlet portion and a media bag enclosing an inner support structure, the filter bag assembly is contained at least partially within a housing having an outlet port. The outlet portion and outlet port are aligned and sealed together creating an outside-in fluid flow scheme.

Abstract: A welding device comprising a body having a cylindrical portion and an integral gripping portion extending away from the cylindrical portion. A welding head is provided at one end of the cylindrical portion. The welding head is angularly displaceable relative to the cylindrical portion about the longitudinal axis of the cylindrical portion and supports an ultrasonic transducer and an anvil co-operable with the transducer. The transducer and anvil are relatively movable towards one another to pinch an object to be welded therebetween. A pulling device operable by a trigger is provided for pulling the transducer and the anvil towards one another and a battery pack is releasably attached to the gripping portion.

Abstract: A method of manufacturing a filter comprises the steps of assembling multiple layers of filtration material on top of one another to form an assembly; holding the assembly between an ultrasonic weld horn and a weld nest so that the assembly has a marginal area outside of an edge formed on either the nest or the weld horn; and operating the weld horn so as to cause the marginal area to be cut off from the assembly at the edge and to simultaneously seal together the layers of filtration material of the remaining assembly at the edge. A filter made by the process and an apparatus used to practice the process are also disclosed.

Abstract: A sealing apparatus includes an anvil of a sealing abutment surface, which is driven to circulate with a constant peripheral velocity, and an ultrasonic horn of a sealing abutment surface, which is driven to reciprocate with varying velocities. Since the relative velocity of a soft workpiece moving along with the anvil against the sealing abutment surface of the ultrasonic horn can be made low, a sealing energy from the ultrasonic horn may be applied to the soft workpiece sufficiently long.

Abstract: Disclosed is a sealing apparatus wherein, as a drum (5) and a rotary base (6) are rotated together, a follower (10a) of a rocking support member (9) rockably provided on the outer periphery of the rotary base (6) is guided along a cam groove (15c) of a cam member (15) to drive the rocking support member (9) to rock. When the rotary drum (5) reaches a predetermined rotational position, an anvil (14) supported by the rocking support member (9) is urged onto a horn (8), and then, when it reaches another rotational position, the anvil (14) is moved away from the horn (8). Since the anvil (14) is driven by the rocking motion of the rocking support member (9), entire operation becomes quite simple, and a continuous soft work can be certainly clamped between the horn (8) and the anvil (14).

Abstract: A linear fitment applicator for applying fitments to a series of containers being conveyed along a form, fill, and seal packaging machine includes an anvil, a fitment dispenser, a sealer, at least one drive source for moving the anvil, and a wedge. The containers are conveyed along the machine have at least one open end and at least one pre-incised hole for receiving a fitment. The anvil features a fitment engaging element and moves both vertically and horizontally. The wedge locks the anvil into position while the sealer fastens the fitments to the containers. A method for applying the fitments to the containers also is disclosed.

Abstract: In an ultrasonic bonding method that bonds a material to a bonding surface by the application of ultrasonic vibration, both side faces of the material in the direction of ultrasonic vibration are clamped by an application member that applies a predetermined ultrasonic vibration, and by a clamping member. The clamping member is synchronously vibrated by ultrasonic vibration transmitted through the material from the application member, and the material is bonded to the bonding surface while being pressed against the application member and against the bonding surface. In this method, high bonding quality can be achieved by efficiently transmitting ultrasonic vibration from the application member to a material to be bonded, and the material can be prevented from tilting, cracking, chipping, or the like without being subjected to a special working operation, for example, forming of a chamfered portion.

Abstract: According to a bonding method of heat-welding a plurality of components in a predetermined lengthwise direction by vibration of an ultrasonic vibrator, the plurality of components are fixed such that their bonding positions are aligned, the ultrasonic vibrator is oscillated, and the plurality of components and ultrasonic vibrator are moved relative to each other in the lengthwise direction, thus performing heat welding.

Abstract: A tubular filter element and a device for producing the same for filtering fluids includes a filter mate. The facing ends of the filter mat are fixed in position by a connecting device which at least partially overlaps the filter mat.

Abstract: An ultrasonic bonding apparatus including an ultrasonic horn formed as a horizontally symmetrical inverse triangle having two apexes besides a lower apex facing downwards; a vibrator attached to at least one apex for inputting ultrasonic vibrations in a direction facing the lower apex; and a load applying device linked to the ultrasonic horn above the lower apex and near the symmetry axis thereof, for applying a downwards pressing load. An abutting member for pressing on the objects to be bonded is provided at the lower apex of the horn. No flexing occurs at the ultrasonic horn due to the applied load, and a uniform load and ultrasonic vibrations are applied to the entire bonding face, yielding uniform and high-quality bonding.

Abstract: A transducer for a wire bonding apparatus is formed of two separate parts sandwiching therebetween a plurality of piezoelectric elements. One of the two parts is the amplifying horn, and by selecting appropriate sizes and shapes for the two parts, vibrational energy can be concentrated at the distal end of the amplifying horn where the bonding tool is located.

Abstract: To provide a heat-sealing apparatus capable of achieving an excellent heat-sealing wherein no generation of defective sealing is found even when heat-sealing under severe conditions with a fluid, such as when filling/packing a vegetable juice abundant in water-insoluble vegetable fiber, without providing a ridge on the action face of a high-frequency coil.

Abstract: The present invention includes a method and apparatus for producing individual folded labels. The method includes the steps of providing a ribbon of labels and folding the ribbon of labels so as to form at least one folded portion. The folded ribbon is subjected to sufficient heat and pressure to set the at least one folded portion. The ribbon of labels is advanced to a cutting device and subdivided into individual folded labels with an ultrasonic cutting device. Immediately prior to cutting, the advance of the ribbon of labels is paused to allow the material to partially melt and flow prior to being subdivided. The corners of the label can also be rounded to provide improved comfort for the wearer.

Abstract: A method is disclosed for securing a flexible covering about a frame having a peripheral edge and at least one corner. A portion of the flexible covering is folded over the peripheral edge of the frame at or about the corner and an excess portion of the covering is provided. Ultrasonic welding is used to create a seam of contacting portions of the flexible covering. In an embodiment, the excess portion of the flexible covering is removed in connection with the welding operation. An apparatus for securing a flexible covering about a frame is also provided.

Abstract: A method and an apparatus for ultrasonically welding plastic parts together. The ultrasonic welding apparatus includes: an air cylinder having a piston rod; an ultrasonic horn substantially rigidly coupled to an end of the piston rod and having a distal end; a rotary anvil having an axis of rotation generally perpendicular to an axis of the piston rod and comprising a periphery; a transducer for converting electric potential differences into ultrasound wave energy, the horn being acoustically coupled to the transducer; and drive means for causing the anvil to rotate. The distal end of the horn confronts the periphery of the anvil throughout rotation of the anvil. On one application, interlocked zipper strips are passed through a gap between the distal end of the horn and the periphery of the anvil. The anvil periphery has a plateau that presses the zipper against the distal end of the horn. The transducer is energized in synchronism with the plateau being opposed to the distal end of the horn.

Abstract: After the fixing of an angle indexing body to a holder by fixtures is canceled by loosening the fixtures, a resonator is turned by operating the angle indexing body with an axis in a vibration transmission direction as the center of rotation, a bonding work face is replaced by another bonding work face, and the angle indexing body is fixed to the holder by the fixtures so that the new bonding work face becomes parallel to the top face of a mounting table. Therefore, the replacement of the bonding work face can be simplified. Since overlapped workpieces are sandwiched between the bonding work face of the resonator and the mounting table, the mounting table makes a follow-up movement by a bearing composed of a spherical projection portion and a spherical depression portion to ensure that the bonding work face becomes parallel to the top face of the mounting table, thereby making it possible to optimize the position of the sandwiched workpieces.

Abstract: An ultrasonic vibration method and an ultrasonic vibration apparatus, which do not have a directional property in the direction of vibrations, are disclosed. A pair of ultrasonic horns (11), (12), each having an ultrasonic vibrator (13), (14) provided at an end portion thereof, are disposed in an intersecting relationship to each other, and the composite vibrations of transverse vibrations produced by the pair of ultrasonic horns (11), (12) when the other ultrasonic horns (12), (11) are excited to generate longitudinal vibrations are extracted at the intersecting point of the pair of horns (11), (12) and applied to a contact object member through a presser (22).

Abstract: Method of bonding plies of tissue paper together includes the step of feeding a web of at least two plies of tissue paper through an ultrasonic bonding device having at least one ultrasonic horn and an anvil roller having a pattern of protrusions on its peripheral surface. The method comprises the further step of applying fluid to the web in a pattern corresponding to the pattern of protrusions before the web passes the ultrasonic horn. An arrangement for performing the method is also disclosed.

Abstract: An ultrasonic welding assembly comprising a horn, an anvil and an anvil cover. The horn comprises a generally T-shaped flattening surface and a rail projecting forward of the flattening surface. The rail is shaped to serve as a dam for flowing thermoplastic zipper material during stomping of slider end stops. The horn further comprises a plurality of vertical energy directors designed to direct ultrasonic energy into the mass of zipper material and deflect flowing zipper material toward the dam. The horn further comprises first and second recesses located on opposite sides of a stem of the T-shaped flattening surface. The anvil cover overlies opposing portions of the anvil and comprises a T-shaped cutout. The T-shaped flattening surface of the horn fits in the T-shaped cutout of the anvil cover. The resulting zipper has slider end stops located at opposing ends.

Abstract: The present invention provides a method and apparatus for producing individual folded labels from a ribbon of labels designed to satisfy the aforementioned needs. The label is formed by first providing a ribbon of labels with at least one folded over portion and then subjecting the folded ribbon to heat and pressure to set the fold. The folded pressed ribbon is then subdividing into individual labels. In an alternative embodiment, the folded and pressed ribbon can be rerolled and shipped to an end user for use in an auto-sewing device. The present invention further includes an apparatus for carrying out this method and a finished label.

Abstract: A form-fill-seal machine has an ultrasonic vibration emitter head 11 positioned outside the tube being formed by the overlapping of the margins 3 and 5 of a film web, and an anvil 13 positioned inside the tube defined by those margins, the anvil being mounted on an anvil carrier 25 which is supported by a frame element entirely independent of the forming box 1 used to fold the film, so as to isolate the anvil from vibrations sustained from the forming box. The anvil carrier can be mounted directly to a carrier body for the ultrasonic vibration emitter, and preferably has the shape of an inverted letter J where the anvil is positioned near the toe 25a of the J, the mounting to the sealing machine frame is at the top of the stem 25c of the J, with a slot 25b between the toe 25a and the stem 25c.

Abstract: An ultrasonic welding assembly is disclosed. The assembly includes a vibratory horn and at least one mount securing the horn. The horn has a resonant frequency and the mount has a resonant frequency about the same as the horn. The mount includes an inner portion that holds the horn at a nodal region. The mount also includes an outer surface that is coupled to a support member, for example, a bearing. The mount vibrates in resonance with the horn at the resonant frequency, wherein the vibration amplitude of the outer surface of the mount is generally up to about 15 percent of the vibration amplitude of the inner portion.

Abstract: A method and apparatus are provided for sealing packaging material using ultrasonic technology. The method includes the steps of supplying the packaging material to a sealing station that includes an anvil and horn, and sealing the packaging material. The apparatus is a cam-shaped, rotatable anvil where the rate of rotation of the anvil can be changed based upon the speed of an AC Servo driving the anvil and the desired spacing between the seals.

Abstract: An apparatus and method for manufacturing a core or tube. The apparatus comprises a means for reactivating an adhesive present on at least one surface of at least one ply.

Abstract: A method for welding synthetic resin members includes the steps of detecting a temperature of a high frequency electrode or an ultrasonic horn (or an anvil) by a temperature detector, cooling the high frequency electrode or the ultrasonic horn (or the anvil) by cooling means when the temperature detected by the temperature detector during a high frequency or ultrasonic vibration exceeds a preset temperature range, thereby reducing the temperature rapidly down to the preset temperature range, and stopping an operation of the cooling means when the temperature of the high frequency electrode or the ultrasonic horn (or the anvil) is reduced to the preset temperature range.

Abstract: The present invention provides a method and apparatus for producing individual folded labels from a ribbon of labels designed to satisfy the aforementioned needs. The label is formed by first providing a ribbon of labels with at least one folded over portion and then subjecting the folded ribbon to heat and pressure to set the fold. The folded pressed ribbon is then subdividing into individual labels. In an alternative embodiment, the folded and pressed ribbon can be rerolled and shipped to an end user for use in an auto-sewing device. The present invention further includes an apparatus for carrying out this method and a finished label.

Abstract: A method and an apparatus for producing zippered bags at faster speeds. This is accomplished by speeding up the ultrasonic welding operation. More specifically, ultrasonic welding is performed continuously while the web of bag making film and the zipper tape are moving, instead of being performed while the film and zipper tape are stopped. To facilitate this improvement, the ultrasonic welding station is moved from the bag machine, where the bag making film and zipper tape move intermittently, to the sealer frame, where the film and zipper tape move continuously. The ultrasonic welding apparatus comprises a pair of rotary elements, one of which is acoustically coupled to an ultrasonic transducer. One of the rotary elements is provided with a protuberance on its periphery that acoustically couples the zipper tape to the energized rotary element.