aircooler

[Design of exhaust gas] The plastic melt simultaneously discharges the original air Plastic Bucket Mould Manufacturers of the cavity and the runner during the cavity filling of the mold, and in addition, the plastic melt generates a small amount of decomposition gas. These gases must be discharged in time. Otherwise, the compressed air generates a high temperature, which may cause local carbonization and charring of the plastic part, or bubbles may be generated in the plastic part, or the plastic parts may be poorly welded to cause a decrease in strength, or even filling the mold. 2 Design of the clamping mechanism The guiding clamping mechanism is an indispensable part of the plastic mold. Because the mold requires a certain direction and position when it is closed, it must be provided with a guiding mechanism. The guiding column can be installed on one side of the movable mold or on the fixed mold side. The column is placed around the main cavity. The main functions of the guiding mechanism are: positioning, guiding and bearing a certain side pressure. Positioning effect: In order to avoid misalignment of the mold during assembly, the mold is damaged, and the cavity is maintained in the correct shape after the mold is closed, so that the wall thickness of the plastic part is not uneven due to the positional deviation. The plastic part will produce a one-way side pressure during the injection of the cavity, or due to the accuracy of the injection machine, the guide column will be subjected to an indefinite guiding action during the operation. , When the mold is closed, the guiding mechanism is first contacted to guide the fixed mold to close properly, so as to prevent the punch or core from entering the cavity first, causing interference and bad parts. Due to the anisotropy of the injection pressure, the guide column is subjected to radial shearing, which causes the guide post to be easily broken. After the core and cavity are improved, the fit can be positioned