摘要:
The invention relates to a device for connecting a multilayered web (6, 7) by ultrasound in a first gap (15, 42, 54) between a first ultrasonic device (16, 43, 55) and at least one first counter-tool (10, 44, 50). According to the invention, a first, flat starting web (2, 4, 6a) is introduced through a first feeding device (12, 14) and a second flat starting web (3a, 3, 6) is introduced through a second feeding device (13, 10) into the first gap (15, 42, 54).
摘要:
The inflatable membrane apparatus (10) comprises :
a fluid accumulator (11) having an upper and a lower face and a fluid entrance (12), said lower face being partly formed by an inflatable membrane (14), and a trunconical part (15) projecting outwardly from the lower face of the accumulator whose greater base is closed by at least part of the inflatable membrane (14) and smaller base forms a circular opening, whereby, when pressurized fluid is introduced into the accumulator (11), deformation of the inflatable membrane (14) is guided by the trunconical part.
摘要:
Eine Vorrichtung zur kontinuierlichen Herstellung von Tropfbewässerungsrohren umfasst eine Extrusionseinrichtung (1 ) zur Erzeugung eines Rohrkörpers (2), eine Kalibriereinrichtung (3) und eine Kühleinrichtung (19) für den Rohrkörper (6). Ferner ist eine Zuführeinrichtung (5) für Dosierelemente (6) in den Rohrkörper (2) sowie Mittel zum Verbinden der Dosierelemente (6) mit der Innenwandung des Rohrkörpers (2) vorgesehen. Die Zuführeinrichtung (5) umfasst eine Vereinzelungseinrichtung (7), in welcher von den kontinuierlich zugeführten Dosierelementen jeweils das Nächste erfassbar ist, gesteuert auf eine Führungsbahn (4) ausstossbar ist und mittels einer Luftströmung entlang der Führungsbahn (4) in den Rohrkörper (2) einbringbar ist. Mit dieser Vorrichtung lassen sich Tropfbewässerungsrohre herstellen, bei welchen die Dosierelemente einen beliebig vorgegebenen Abstand voneinander aufweisen können, wodurch eine optimale Bewässerung einer Bepflanzung möglich wird.
摘要:
In order to form positive connections with human or animal tissue parts, particularly bones, implants (7) are used that at least partially consist of a material that can be liquefied by means of mechanical energy. Particularly suitable materials of this type are thermoplastics (e.g. resorbable thermoplastics) or thixotropic materials. The implants (7) are brought into contact with the tissue part, are subjected to the action of ultrasonic energy and are simultaneously pressed against the tissue part. The liquefiable material then liquefies and is pressed into openings or surface asperities of the tissue part so that, once solidified, it is positively joined thereto. The implantation involves the use of an implantation device comprising a generator (2), an oscillating element and a resonator (6), whereby the generator (2) causes the oscillating element to mechanically oscillate, and the element transmits the oscillations to the resonator (6). The resonator (6) is used to press the implant (7) against the tissue part whereby causing oscillations to be transmitted to the implant (7). The implants (7) are, for example, pin-shaped or dowel-shaped and are used in lieu of screws for forming connections with bone tissue, whereby the bone tissue is optionally pre-bored for positioning the implant (7). By virtue of the fact that it is unnecessary to transmit any torsional forces to the implants (7), these implants can be provided with a design that is weaker, i.e. slimmer than that of known screws made of the same material, and they can be implanted more quickly.
摘要:
The present invention provides a method of sealing a rounded member (14), having a first fluid passageway (25) defining an inner diameter of the rounded member (14), between planar members (16). The steps include: positioning the rounded member between the planar members (16) to define an interface area (26); providing fluid under pressure to the first fluid passageway (25); and heating the interface area (26) to form a weld between the rounded member (14) and the planar members (16).
摘要:
A method of bonding waterproof fabrics comprising the steps of disposing a hot melt resin bonding material layer between the waterproof fabrics, waterproofed with a resin film, sewing them together, clamping the sewn portion between a set of metal electrodes curved in an arcuate form, and fusing the hot melt resin adhesive by radio frequency heating to bond the fabrics. This bonding method can uniformly bond the sewn portion even when the sewn portion is curved within a plane or is curved three-dimensionally or the thickness of the sewn portion is partially different, such as a collar stitching portion, a sleeve stitching portion, a crotch portion of clothes, and can impart excellent waterproofness to the overall sewn portion. Further, the sewn portion of a sewn article has high bonding strength but does not become rigid.
摘要:
A heat sealing and cutting mechanism (200) to form a heat seal and a cut across a tube of flexible packaging material includes a carrier (208) to contact the tube. A pair of closely spaced heat sealing bands (222) are disposed on the carrier (208) and are energizable to form closely spaced heat seals across the tube when the carrier (208) is in contact with the tube. The heat sealing bands (222) are configured to define temperature gradients along the heat sealing bands (222). A cutting wire (240) is also disposed on the carrier (208) and is positioned between the heat sealing bands (222). The cutting wire (240) is energizable to cut the tube when the carrier (208) is in contact with the tube.
摘要:
The invention concerns a valve body for sprayer. The inventive valve is essentially characterised in that it comprises a valve-supporting sleeve (1), a connection sleeve (2) with a pouch P, and means for connecting the two sleeves. The two sleeves define a sealed channel (7) for ejecting a fluid to be sprayed, the connection sleeve (2) consisting of two walls (11, 12) shaped like curved arches joined along a plane (13), each of the two dihedrals (21, 22) tangent to the outer surface (18, 19) of the two arches and having respectively as ridges (23, 24) the two straight lines common to said two surfaces (18, 19) in the junction plane (13),having an angle at the summit (25, 26) less than 180°. The invention is useful for producing a sprayer wherein the product to be sprayed is contained in the pouch P which is welded on the connection sleeve of the spraying valve body.
摘要:
Vertical form fill seal apparatus (200) for making flexible packages (10; 130) with slider fastener closures is provided. A fastener track (210) is applied in-line with a plastic web (206) and is bonded thereto at the same time that a peel seal (36) is formed. All package components are brought together at the point of fill. Prior to assembly at the fill station (250) a series of spaced-apart stop members (68) are formed along the fastener tracks (26, 28).
摘要:
With the ultrasonic adhering method and apparatus, ultrasonic adhesion can be made appropriately, regardless of external environments and a simple structure. The apparatus includes an ultrasonic oscillator (10) for generating ultrasonic vibration, a horn (12) provided in this ultrasonic oscillator for oscillating ultrasonically, and a temperature sensor (18) for sensing the temperature of the horn (12). A controlling unit (16) is provided for detecting the temperature of the horn (12) and controlling oscillation time of the ultrasonic oscillator (10) in the state of the horn (12) being contact with an object to be adhered in such a manner that the oscillation time has a negative correlation with respect to the temperature of the horn (12).