First frock of heat seal

The utility model overcomes it is not enough that prior art exists, provides one kind and can ensure the heat seal quality, solves the first frock of heat seal of the difficult problem of heat seal casing demould, in order to solve the technical problem, the utility model discloses a technical scheme do: a first frock of heat seal, includes ejector pin, clamp plate, guide pin bushing, inner core and spring, the clamp plate is the loop configuration, the clamp plate suit is on the ejector pin, the inner core is the shell structure of concave type, the inner core sets up in the outside of clamp plate, just the upper end of inner core is provided with the internal thread, through the internal thread is in the same place with the external screw thread accordant connection who sets up on the clamp plate, in -core including the vertical setting of spring, just the lower part at the ejector pin is pushed up to the upper end of spring, the guide pin bushing sets up the outside at the inner core, the guide pin bushing