Analysis of the problem of box error in casting molding machine
The relationship between the casting molding machine and the misalignment of the box is mainly reflected in the design and use of the molding machine, which may cause the occurrence of the misalignment problem.
The main reason for the misalignment of the casting molding machine
Mold plate misalignment: During the casting process design, due to the structural problems of the casting, the parting surface may be improperly designed, which requires mold splitting or even multi-box molding during the design. The low level of mold making or improper assembly can easily cause the misalignment of the mold plate.
Conical positioning pin sticking sand: The fully automatic horizontal molding machine uses a conical positioning pin for positioning. If it is not cleaned in time, there will be floating sand on the surface of the positioning pin, which will cause the upper and lower boxes to be loosely molded and cause misalignment.
Pushing the mold too fast: After the hydraulic power unit has been used for a long time, the cylinder seal ring has aged or the cooling effect of the hydraulic pump station is poor, which may cause the box cylinder to push too fast, resulting in the misalignment of the upper and lower box sand tires.
The inner wall of the casing is not cleaned properly: The sand blocks remaining on the inner wall of the casing will push the sand mold to move, causing the casting to be misaligned
Methods to prevent and solve the misalignment problem
Strengthen the template inspection: Regularly check the wear of the template, replace the worn template in time, and ensure the accuracy of the template.
Reasonably install the positioning pin: Optimize the design of the installation position and method of the positioning pin to ensure the stability and accuracy of the positioning pin.
Timely adjust the wear of equipment parts: Regularly maintain and replace worn equipment parts to ensure the normal operation of the equipment.
Carefully carry the mold: When carrying and installing the mold, pay attention to avoid external impact and improper operation to ensure the stability of the mold.
