摘要:
An ultrasonic welding device includes a sonotrode emitting vibratory energy and an anvil having a work face cooperating with the sonotrode for supporting a workpiece positioned for welding between the sonotrode and the anvil. The anvil has a housing and a plurality of laminae individually shiftably supported in the housing in a face-to-face relationship for forming a lamina stack. Each lamina has an edge face at a side of the lamina stack; the edge faces together constitute the work face of the anvil. There is also provided a force exerting arrangement for imparting individually to each lamina a force oriented towards the sonotrode for individually urging each lamina outwardly of the housing in the direction toward the sonotrode.
摘要:
A belt press has a plurality of upper and a plurality of lower traverses respectively having lower and upper traverse faces, upper and lower press platens carried on and between these traverses and having respective upper and lower platen faces respectively confronting the lower and upper traverse faces, and mechanically actuated bolts engaged between the traverses for displacing them toward each other and thereby pressing the platens against a belt engaged between them. The belt press also has at least one bend-compensating element having a pair of nonparallel upper and lower surfaces and engaged between one of the platen faces and the confronting traverse faces, and a hydraulic force transmitter engaged between this bend-compensating element and one of the respective press and platen faces. The transmitter is formed of a plurality of diametrally compressible but circumferentially unstretchable hydraulic hoses forming at least one substantially closed chamber of a predetermined maximum volume, and of a body of an incompressible fluid only partially filling this chamber.
摘要:
A work piece processing device includes a tool piece, a work piece holder and a servo-elastic actuator system having simultaneous precision force and position control that moves one of the tool piece and the work piece holder to the other of the tool piece and work piece holder.
摘要:
A button-fastening upper die includes a die body, a button-holding member and a cylindrical elastic member arranged between the die body and the button-holding member. By providing the elastic member with an annular recess recessed radially outward from the inner surface e.g. at the middle of the surface, the elastic member is sectioned into a thin-walled section located radially outward from the recess and two or more thick-walled sections remaining above and below the recess and the thin-walled section.
摘要:
A packaging apparatus including a cutting device, the cutting device comprising an elongate holder, an elongate knife having an elongate cutting edge, and a heat seal device located on the elongate holder on opposed sides of the knife, the heat seal device comprising a pair of elongate pressure strips projecting outwardly from the elongate holder, each pressure strip extending along a respective side of the knife, wherein each pressure strip comprises an elongate bar mounted for sliding movement in a respective slot in the elongate holder, the sliding movement varying the distance an outer edge of the elongate bar projects from the elongate holder, and a biasing element within the respective slot, the biasing element engaging an inner edge of the elongate bar and arranged to bias the elongate bar outwardly of the slot. A packaging method is also disclosed.
摘要:
The sealing element for integration into a sealing tool for producing smooth stamping fields during the sealing of two plastic sheets has a base body. A first slot extends into the base body from a first narrow lateral surface, and a second slot, which is offset vertically from the first slot, extends into the base body from a second narrow lateral surface, in such a way that the two slots define a section of the base body which has substantially the shape of an S or reversed S. The first slot has a U-shape with a first leg of the first slot being longer than a second leg of the first slot, and the second slot has a U-shape with a first leg of the second slot being longer than a second leg of the second slot. Each of the two slots expands at its inner end to form a bore.
摘要:
A method for fabricating a rigid lamination. The method includes providing a first rigid substrate, disposing an adhesive on a surface of the first rigid substrate and disposing a second rigid substrate on at least a portion of the adhesive. The second rigid substrate has a first end and a second end. The second rigid substrate is heated to a substantially uniform temperature, where the temperature is sufficient to melt the adhesive. A non-uniform pressure is applied to a surface of the second rigid substrate. The non-uniform pressure includes a lesser pressure and a greater pressure, where the greater pressure is applied at the first end of the second rigid substrate and is sufficient to impart adhesive flow in a direction toward the second end. The pressure is controllably increased along at least a portion of the surface between the first end and the second end, where the increase is controlled to drive the adhesive flow in the direction toward the second end until the pressure applied is substantially uniform across the surface and the adhesive between the first rigid substrate and the second rigid substrate is substantially free of entrained gas bubbles. The adhesive is cooled to form a rigid lamination having adhesive substantially free of entrained gas bubbles.
摘要:
A sealer for bonding a cover foil to a support foil has upper and lower tools having confronting faces between which the foils move in a transport direction, a drive for pressing one of the tools vertically toward the other tool and thereby compressing the foils together between the faces, an intermediate plate between the drive means and the one tool formed with an array of pressurizable chambers. These chambers can be selectively pressurized.
摘要:
A heat sealing jaw assembly for effecting a heat seal of at least two juxtaposed heat sealable sheet materials is described. Preferably, but not exclusively, the heat sealing jaw assembly is adapted for use in a form, fill and seal machine forming thermoplastic bags. The heat sealing jaw assembly comprises a first and a second metal jaw member, each having a heating element for heating the jaw members. Each of the jaw members has an end face disposed in facial alignment with one another. A ribbon member is secured to each of the end faces and disposed in planar alignment with one another. The ribbon member is made of soft material having rubber-like properties and capable of conducting heat from the sealing jaw to a fusing temperature to melt the heat sealable sheet materials. The first and second jaw members are reciprocatable towards and away from one another to press the aligned heated ribbon members against opposed sides of at least two juxtaposed heat sealable sheet materials disposed between the jaw members to effect a heat seal.