A transmission device configured to transpose a drive movement of a drive into a linear and rotating movement of a first tool part of a forming tool of a forming device, the transmission device including a shaft, including a shaft axis; a first interface; a second interface, wherein the first interface is configured to connect the shaft with the first tool part at least torque proof, and the second interface is configured to connect the shaft with the drive at least by axial fixing; and a housing supporting the shaft is rotatable about the shaft axis and displaceable on a linear path parallel to the shaft axis, wherein at least one radial recess is arranged at an outer radial circumferential surface of the shaft, and at least one radial protrusion cooperating with the at least one radial recess is arranged at least at one guide element of the housing.

A plastic injection mold for the manufacture of fluid-saving devices is disclosed. The mold includes two subassemblies called the fixed part (Side A) and the moving part (Side B). When they are assembled together, these two subassemblies form the mold. When used in a plastic (polymer) injection process, the mold allows for mass production of a fluid-saving device.

The mold is composed of steel plates superimposed on one another, aligned and joined by fastening elements arranged between the plates. The main elements are the cavity, the core, and the forming pins. The forming pins are interchangeable to achieve product flexibility and obtain different models of fluid-saving devices.

A resin molding mold of the present disclosure includes: a slide core slidably attached to a guide rail; and a sensor for detecting a force applied to the guide rail when the slide core slides.