| 摘要 |
An apparatus for thermofixing continuous synthetic-resin slide-fastener coupling elements of the coil or meander type has an elongated shaping member formed with a series of beds that snugly receive the coupling-element turns to set or form the shape thereof. A source of electric energy is coupled to a portion of this member to heat it and thereby conductively heat the element along the heated portion. The member can be an endless band which is intermittently or continuously displaced over contacts which pass a current through it to heat it, or through a coil to heat it inductively. Downstream of the heating station the band is cooled, prior to detachment therefrom of the thermofixed coupling element. The contacts can comprise a pair of spaced-apart rollers connected to one side of the electric-power source and therebetween another contact connected to the other side of the source. |
