摘要:
Die vorliegende Erfindung betrifft ein Trennschweißmesser (56) zum Trennschweißen von aufeinanderliegenden Folienbereichen mit zwei Anschlussabschnitten (68,70) zum Widerstandsbeheizen des Trennschweißmessers und mit einem Schneidbügel (72), der die Anschlussabschnitte miteinander verbindet, und einen geraden Abschnitt (76) sowie zwei gebogene Abschnitte (78,80) aufweist. Des Weiteren ist der gerade Abschnitt und sind die zwei gebogenen Abschnitte derart ausgebildet, dass ihre jeweiligen Leiterquerschnitte (82) gleich groß sind. Darüber hinaus wird eine Längstrennschweißvorrichtung mit einem erfindungsgemäßen Trennschweißmesser vorgeschlagen, bei der des Weiteren eine Folienführung vorgesehen ist, die die aufeinanderliegenden Folienbereiche unterhalb des Wärmekörpers an dem Trennschweißmesser entlang führt.
摘要:
The invention relates to a method and system for the mechanical-thermal separation of different materials such as textile flat structures, threads, and plastic films by heating and simultaneously compacting the material. According to the invention, the material is fed through a gap which is formed between a tool (2) and an opposing surface (3) that touches the tool while forming a point. An adjustable electrical current is conducted over the contact point (5) in such a manner that a temperature profile (14), which is adapted to the density of the material, in the area of the contact point (5) is set such that the temperature of the tool (2) and opposing surface (3), independent of their shape and cross-section up to the contact point, is, in the advance direction of the material (1), increased to the same maximum value, and the contact point is heated in a defined manner.
摘要:
Marks such as patterns, designs, numbers, or the like are cut out of a mark sheet (20) or mark sheets placed on a glass base by a thermal cutter (30) having a heated cutting bit (32). The thermal cutter (30) is movable two-dimensionally over the mark sheet (20), and is also vertically movable between an upper position in which the thermal cutter (30) is lifted off the mark sheet (20) supported on the base and a lower position in which the thermal cutter is lowered in contact with the mark sheet (10) supported on the base. The thermal cutter is angularly movably supported on an eccentric shaft (102) that is rotatable by a stepping motor (112). The thermal cutter (30) has a cutting bit (34) resiliently urged by a spring (118) for stable positioning. A range or ranges in which desired marks are to be cut out of a mark sheet or mark sheets can be confirmed by being traced by the thermal cutter (30) before the marks are actually cut out. When mark numerals indicative of desired numbers are to be cut out, such mark numerals are rearranged and displayed for the operator's information. The thermal cutter can be cleaned by a cutter cleaner (38) in a different cleaning pattern each time the thermal cutter (30) has moved a predetermined distance in contact with the mark sheet (20) or mark sheets. The thermal (30) cutter moves to the cutter cleaner (38) and also to a position to start cutting out desired marks, at a higher speed than the speed at which it cuts out the desired marks.
摘要:
A device for boring a lining at the branching portion of a pipe line, such as a gas pipe or a water pipe. To an end of a coiled tension spring (1), a coiled compression spring (2), the spring constant of which is smaller than that of the coiled tension spring (1), is connected. A frusto-conical head member (5), which is formed by coating an electric heating element (3) with a thermoplastic resin (6), is connected to the end of the coiled compression spring (2). One or more electric wires (9) connected to the heating element (3) are inserted through the coiled tension spring (1) and coiled compression spring (2) in slackened state. The electric wire (9) which is in the coiled tension spring (1) is fixed thereto at a plurality of portions thereof. A means N, which is capable of feeding the coiled tension spring while turning the same, is provided at the rear portion thereof.