Deformation refers to the concave, protruding, warped, bent and twisted changes in the shape of the injection molded parts. Dislocation refers to the displacement of the relative position of the injection molded parts. The deformation and dislocation elements of the injection molded parts are the shape of the injection molded parts. “One of the six elements” of the analysis, it is also a factor that affects and determines the structure of the injection mold, and is an unavoidable factor. The deformation elements of the injection part will affect the selection of the parting surface of the injection mold, the core pulling mechanism and the injection molding. The structure of the mold release mechanism, the dislocation elements of the injection molded parts will affect the positioning of the injection molding core and the cavity and the structure of the guiding mechanism. If the influence of deformation and dislocation elements on the injection mold structure is not considered, it will inevitably lead to the failure of the injection mold structure design, especially for thin-walled, narrow and long, precision injection molded parts and injection molded parts that require large demoulding force , the requirements for the deformation and dislocation elements of injection molded parts often do not attract people’s attention, and the drawings of injection molded parts do not have this requirement. Release force is an important cause of errors in the design of injection molds for injection molded parts. If you do not pay attention to the injection mold structure (including the setting of the gating system and the temperature control system) to take effective measures for such injection molded parts, it will inevitably lead to warping and deformation of the molded injection parts, or even rupture, and may also cause the injection molded parts to produce damage. Inside. The dislocation of the shape has the consequence that the wall thickness of the injection member is inconsistent.
How to solve the problem of deformation and dislocation of injection parts is a problem that injection mold designers must pay attention to and care about. If these two problems are not solved well, it means that the structural design of the injection mold fails. Of course, there are few cases of only deformation and dislocation of injection molded parts. Most of the manifestations are the combination of deformation and dislocation requirements and obstacles, holes and grooves, and movement and interference.
Post time: Feb-07-2022