Method and Device for Core Pulling and Insertion in Synchronization with the Opening and Closing of the Mold
OwnerJinjun Suninventor
Life of this patent
Estimating the term…
Abstract
A method for core pulling and insertion in synchronization with the opening and closing of the mold which is used in a cavity constituted by a fixing half and a moving half, or a cavity constituted by a fixing half, a fixing half and several cavity plates installed between fixing half and fixing half as well as the cores moving reciprocally inside the cavity, wherein it is characterized to be completed step by step.
Claims8
A method for core pulling and insertion in synchronization with the opening and closing of the mold which is used in a cavity constituted by a fixing half and a moving half, or a cavity constituted by a fixing half, a fixing half and several cavity plates installed between fixing half and fixing half as well as the cores moving reciprocally inside the cavity, wherein it is characterized to be completed by the following steps:
- (1) In mold opening, the core lock piece opening stroke is preset.
- (2) In mold opening, moving half driving the core lock piece travels the stoke said in step 1) to open until reaching either limit of gear rack or gear chain, whereby the hook reaches the position to start core pulling.
- (3) The moving half continue to travel until mold opening completed, the mold push rod is acted to complete demolding.
- (4) In mold closing, moving half driving hook travels reversely to drive core to insert until reaching either limit of gear rack or gear chain and unlocking hook lock. The moving half driving the core lock piece travels the stroke said in (1) and then locks the core to prepare for mold opening after casting.
- (5) Repeat the steps (1)-(4).
A device for core pulling and insertion in synchronization with the opening and closing of the mold is comprised of a cavity constituted by a fixing half and a moving half, or a cavity constituted by a fixing half, a fixing half and several cavity plates installed between fixing half and fixing half as well as the cores moving reciprocally inside the cavity, wherein it is characterized in that:
- one side of the moving half is installed with the guide press piece to match with the core, the gear spindles are firmly installed between the two guide press pieces, the pulling and insertion gear installed on the spindle is engaged with the transmission rack which is affixed with the core. The transmission gear installed on the spindle is engaged with the gear rack or gear chain installed outside the mold, and the hook installed on above the gear rack or gear train is engaged with the hook lock.
Dependencies are inferred from the claim text.