Design and load-bearing simulation analysis of injection mould for built-in steel pipe plastic tray
The design of the main structure of the mold for the built-in steel pipe plastic tray,including the pouring system,forming components,lateral core pulling,ejection system,cooling system,and exhaust system were focused.The overall assembly diagram of the mold was drawn,and the working principle of the mold was explained.Due to the complex structure of the mold,it was a four sided slider core pulling structure.Therefore,for the inverted buckle area on the sky side,a single-sided core pulling mechanism of"large slider+hydraulic cylinder"was used.For the inverted buckle area on the operating and non operating sides,a core pulling mechanism of"large slider+hydraulic cylinder"was used on both sides.For the inverted buckle area on the ground side,a core pulling structure of"oblique guide column+large slider"was used.For the inner inverted buckle area,a new cross auxiliary rod oblique top core pulling structure was used to solve the problem of tray demolding.In addition,the stress situation of the pallet under static and dynamic loads(forklift handling)were simulated by using the finite element analysis software Abaqus.According to the analysis results,it can be seen that the maximum stress of the tray in both states does not exceed the material yield strength,indi-cating that the tray strength can meet the requirements for use.Finally,actual production was carried out,and the results show that the designed mould mechanism is reasonable,safe and reliable,and the formed tray has good quality,which can provide reference for the design of similar trays.
built in steel pipe typeplastic trayinjection mouldmould designload bearing analysis
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