摘要:
An apparatus for manufacturing dunnage including a plurality of rollers for pulling a web of material through the machine, a nozzle with at least one port through which gas or liquid flows, a hammer mounted on an ultrasonic frequency converter, and an anvil mounted on the machine in a position such that the web of material can pass between the hammer and anvil while allowing the hammer to strike the anvil. The ultrasonic frequency converter is connected to a power source and generates vibrations at a frequency causing the hammer to vibrate at a frequency that will melt the portion of the material that is passing between the hammer and anvil thereby creating a seam. The ultrasonic frequency converter can be mounted on an arm and cam follower to account for variations in the thickness of the web material. The apparatus may be equipped to manufacture multiple pieces of dunnage simultaneously.
摘要:
The ultrasonic welding device (1) comprises a continuously operable roller sonotrode (13). The power of the roller sonotrode (13) may be closed-loop controlled depending on other welding parameter in a manner such that long welding seams or adhesive seam with a uniform quality may be manufactured. The method may be used for manufacturing canopies, tarpaulins, or pieces of clothing
摘要:
A unit for sealing filter bags for products for infusion comprises at least: a shaped revolving roller (2) with circumferential and radial tracks (3, 4) that act as guides to make longitudinal and transversal contact seals on a web (5) of filter paper folded onto itself and moving under the roller (2), using sealing sonotrode means (6) arranged in sealing position under the roller (2) and close to the moving web (5) in such a way as to form) a tubular web of filter paper with a succession of substantially flattened filter bags formed on it; the sealing sonotrode means (6) being operated upon by fluid-driven means (7) designed to control, through appropriate means (8), the variable constituted) by the contact force and/or the distance between the sealing means (6) and the roller (2).
摘要:
An apparatus for continuously bonding and/or welding material webs by means of ultrasound, having an ultrasonic horn configured as a rotating roller, an anvil radially opposite the rotating roller, an amplitude transformer set axially on the rotating roller, an ultrasonic converter attached to the amplitude transformer with an energy supply, where the length l of the rotating roller equals a λ/2 wave or a multiple thereof (l=x·λ/2).
摘要:
Drive device for a handheld heater unit for welding plastic sealing webs and sheets, which is equipped with a heater device for heating the plastic sealing webs and sheets which are to be welded. The drive device has an elongate housing with a pressure-exerting and driving roller, by means of which the joining force can be applied in the vertical direction with respect to the plastic sealing webs and sheets. Furthermore, there is a coupling unit for joining the housing to the heater unit, in such a manner that the longitudinal axes of the housing and of the heater unit run substantially parallel to one another. In the housing there is a motor, which drives the pressure-exerting and driving roller, the height and/or distance of which with respect to the heater device is adjustable. The drive device together with a corresponding heater unit allows quicker, more accurate and therefore better-quality welding of the plastic sealing webs and sheets in manual welding applications, since the user only has to concentrate on applying the joining force. It is therefore possible to produce welds on plastic sealing webs and sheets on inclined and vertical walls, overhead, in U-shaped recesses or grooves and in corner regions.
摘要:
An ultrasonic processing method and apparatus (20) can include a rotatable, ultrasonic horn member (28) that is operatively joined to an isolation member (42) which has high rigidity. A rotatable anvil member (86) can be cooperatively positioned to provide a selected horn-anvil gap (106), and an automated drive (130) can be connected to an actuator (110), or other transfer device, to automatically adjust the horn-anvil gap (106). An electronic processor (128) can be configured to monitor an intermittent gap force detected from an output provided by a force sensor (126), and can provide a drive signal to the automated drive (130) to thereby adjust the horn-anvil gap (106) to operatively maintain a target, gap force value.
摘要:
A ultrasonic processing method and apparatus (20), can include a rotatable, ultrasonic horn member (28) operatively joined to a first isolation member (42) and a second isolation member (44). In a particular aspect, the first and second isolation members (42, 44) can exhibit high rigidity. A rotatable anvil member (86) can be cooperatively positioned to provide a selected horn-anvil gap (106), and the anvil member (86) can be located in a horizontally offset and vertically overlapping arrangement relative to the horn member (28). An actuator (110) or other transfer device can selectively adjust the horn-anvil gap (106). Additionally, an ultrasonic exciter (82) can connect to the horn member (28), and can provide an operative amount of ultrasonic energy to the horn member (28).
摘要:
Apparatus and methods for effecting ultrasonic bonds in sequentially advancing workpiece segments, in a nip defined by a rotary ultrasonic horn and rotary anvil roll. The ultrasonic bonding apparatus comprises support structure comprising anvil support apparatus and horn support apparatus. A closed loop control apparatus is connected to one or both of the anvil support apparatus and horn support apparatus. The closed loop control apparatus comprises a programmable logic controller, a load cell, and an adjustor. Information output from the load cell triggers the closed loop control apparatus through the programmable logic computer and the adjustor to move one or both of the anvil support apparatus and horn support apparatus toward or away from the other in dynamic response to the information output from the load cell, thereby regulating pressure in the nip with ongoing real-time adjustments to distance between the anvil support apparatus and the horn support apparatus.
摘要:
A method of high speed bonding at least one material includes applying acoustic energy, using an acoustic horn and an anvil, to the material. The method also includes applying force to at least one of the horn and the anvil to yield a peak pressure between the horn and the anvil of at least 2.068.times.10.sup.7 N/m.sup.2. The acoustic energy and pressure are applied for a time sufficient to create bonds in the material such that the material is sufficiently quenched before reducing the pressure. The method can include applying acoustic energy at an amplitude of vibration selected in combination with the frequency of vibration to yield an acoustic velocity of no greater than 4.72 m/s.
摘要翻译:一种高速粘合至少一种材料的方法包括使用声喇叭和砧座将材料施加声能。 该方法还包括向喇叭和砧座中的至少一个施加力,以产生至少2.068×107N / m 2的喇叭和砧座之间的峰值压力。 施加声能和压力足以在材料中产生粘合使得材料在减压之前被充分地淬火。 该方法可以包括以与振动频率组合选择的振动幅度施加声能,以产生不大于4.72m / s的声速。
摘要:
A device for sealing the closing seam of a germ-free filled package made from plastic coated paper in germ-free conditions in a clean room; where, in the direction of movement of a sealing jaw, a drive mechanism having a hydraulic cylinder using germ-free water as the hydraulic fluid, and being provided with a piston rod, is connected to the sealing jaw. Behind the sealing jaw the drive member is fixed in a stationary manner to a retaining frame. In front of the sealing jaw and in the direction of movement of the sealing jaw, a counter jaw is securely fixed onto the retaining frame.