Device for welding tubes
AssigneeReed Electronics AG
InventorsPeter Bühler, Willy Fluder, Markus Wyss
Life of this patent
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Abstract
A device for welding thermoplastic tubes to a welding method, and to a welding knife. The device is provided for welding thermoplastic tubes, wherein the tubes are placed into tube holders and squeezed with the aid of tube clamps. A welding knife is moved between the first and the second tube holder and severs the tubes in the process. Cut ends and residual ends are thereby produced. The cut ends are aligned with one another by a relative movement of one tube holder with respect to the other tube holder and, by a horizontal movement of the two tube holders, are welded simultaneously to form continuous tubes.
Claims17
A welding knife (4) for a welding device for welding thermoplastic tubes, comprising:
- a melting surface (49), wherein the welding knife (4) or the melting surface (49) of the welding knife (4) have a rectangular shape, comprises a blade (50) on one of the two longer sides of the rectangle and is electrically conductive,
- wherein peripheral zones (4″, 4″) are provided along the two shorter sides of the rectangle, which are configured to be contacted for electrically heating the welding knife (4) by way of electrical power loss in the welding knife (4),
- wherein the melting surface (49) comprises a plurality of recesses (48), wherein recesses (48) are respectively arranged in a row along the peripheral (zones 4″, 4″) of the two shorter rectangle sides.
Dependencies are inferred from the claim text.