Manufacturing method of honeycomb structure and transfer pallet

A manufacturing method of a honeycomb structure, comprising a vertical extrusion process for forming a honeycomb formed body by extruding a molding compound in a vertically downward direction, wherein the vertical extrusion process comprises:

• an extrusion step of extruding the molding compound in the vertically downward direction from an extrusion die attached to an extruder;
• a honeycomb formed body receiving step in which a transfer pallet is placed at a position near the extrusion die, and the honeycomb formed body formed by continuously extruding the molding compound in the extrusion step is received and supported from below by the transfer pallet;
• and
• a pallet lowering step of lowering the transfer pallet while receiving and supporting the honeycomb formed body in synchronization with an extrusion speed of the molding compound from the extrusion die,
• wherein the transfer pallet is a laminate structure including at least three layers and comprises
• a pallet substrate,
• a tabular mesh plate, placed on the pallet substrate in an overlapping manner, and formed of a mesh material having a plurality of mesh holes,
• a tabular punched plate, inserted between the pallet substrate and the mesh plate, and having a plurality of punched holes drilled at predetermined intervals, and
• a single tabular intermediate mesh plate, or a plurality of tabular intermediate mesh plates, provided under the mesh plate in an overlapping manner and which are formed of a mesh material having a plurality of mesh holes,
• wherein a number of mesh holes per inch of the intermediate mesh plate at a lower stage position is smaller than those of the mesh plate and of the intermediate mesh plate at an upper stage position, and
• wherein a bottom surface of the extruded honeycomb structure directly contacts the tabular mesh plate of the transfer pallet.