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CN-224209083-U - 3D prints foundry sand mould

CN224209083UCN 224209083 UCN224209083 UCN 224209083UCN-224209083-U

Abstract

The utility model relates to a 3D printing sand casting die which comprises a shell and a reinforcing plate, wherein the reinforcing plate is arranged in the shell and is flush with the attachment surface of the shell and a printing platform, a plurality of stress holes are formed in the reinforcing plate, deformation holes are formed in the shell above the platform surface facing the printing platform, and fillers are arranged in the deformation holes. The utility model has the advantages that the three-layer shell is matched with the reinforcing plate, the stress holes are formed in the reinforcing plate, the mechanical strength of the sand casting mould is ensured while the material consumption is reduced, the printing time is shortened, meanwhile, the deformation holes are formed in the shell, the deformation Kong Xingbian replaces the edge angle deformation of the platform surface, and the phenomenon that the sand casting mould has a warp angle due to the different temperatures of upper and lower layers of materials during printing is avoided.

Inventors

  • TANG FENGLIANG
  • TANG DONGLIANG
  • TANG JINHAI

Assignees

  • 杭州亿能透平新材料有限公司

Dates

Publication Date
20260508
Application Date
20250423

Claims (6)

  1. 1. The 3D printing sand casting die is characterized by comprising a shell and a reinforcing plate, wherein the reinforcing plate is arranged in the shell and is flush with the attachment surface of the shell and the printing platform, a plurality of stress holes are formed in the reinforcing plate, deformation holes are formed in the shell above the platform surface facing the printing platform, and fillers are arranged in the deformation holes.
  2. 2. The 3D printing foundry mold of claim 1 wherein the shell comprises an outer layer, a reinforcing layer and an inner layer, the reinforcing layer being disposed between the outer layer and the inner layer.
  3. 3. The 3D printing foundry mold of claim 2 wherein the reinforcing layer is disposed in a grid pattern.
  4. 4. The 3D printing foundry mold of claim 1 wherein the reinforcing plates comprise transverse reinforcing plates and longitudinal reinforcing plates, the transverse reinforcing plates and the longitudinal reinforcing plates being crisscrossed in the housing.
  5. 5. The 3D printing foundry mold of claim 1 wherein the reinforcing plate forms a matched male splice and female splice at the splice of the shell.
  6. 6. The 3D printing foundry mold of claim 1 wherein the deformed hole corresponds to an edge angle of the platform surface.

Description

3D prints foundry sand mould Technical Field The utility model relates to the field of sand casting, in particular to a 3D printing sand casting die. Background During sand casting, a sand mould is needed to be made by using a sand casting mould. Conventional foundry molds are usually wood molds or metal molds, which are difficult to manufacture, heavy in weight, easy to deform and require regular maintenance. Compared with the traditional wood die and metal die, the 3D-printed sand casting die has the advantages of being prepared into a periodic end, low in cost and the like, but the 3D-printed sand casting die, particularly a large-sized sand casting die, has obvious temperature difference due to long printing time in the printing process, and the temperature difference can cause the problem that the edge angle of the printed sand casting die is upturned, so that the flatness of the sand casting die is affected, and gaps are reserved after the sand casting die is combined, so that an accurate sand casting cannot be manufactured. Disclosure of Invention The utility model mainly solves the problems, and provides the 3D printing sand casting die, wherein the three-layer shell is matched with the reinforcing plate, the stress holes are formed in the reinforcing plate, the mechanical strength of the sand casting die is ensured while the material consumption is reduced, the printing time is shortened, meanwhile, the holes are deformed on the shell, the deformation Kong Xingbian is used for replacing the edge angle deformation of the platform surface, and the condition that the sand casting die has a warp angle due to different temperatures of upper and lower layers of materials during printing is avoided. The technical scheme includes that the 3D printing sand casting die comprises a shell and a reinforcing plate, wherein the reinforcing plate is arranged in the shell and is flush with an attaching surface of the shell and a printing platform, a plurality of stress holes are formed in the reinforcing plate, deformation holes are formed in the shell and face the upper side of a flat table surface of the printing platform, and fillers are arranged in the deformation holes. As a preferable mode of the above-mentioned mode, the case includes an outer layer, a reinforcing layer, and an inner layer, and the reinforcing layer is provided between the outer layer and the inner layer. As a preferable mode of the above-mentioned mode, the reinforcing layer is distributed in a grid shape. As a preferable mode of the above-mentioned aspect, the reinforcing plate includes a transverse reinforcing plate and a longitudinal reinforcing plate, and the transverse reinforcing plate and the longitudinal reinforcing plate are distributed in a crisscross in the housing. As a preferable mode of the above-mentioned scheme, the reinforcing plate forms a matched convex splicing part and a matched concave splicing part at the splicing part of the shell. As a preferable mode of the above-mentioned mode, the deformation hole corresponds to an edge angle of the land. The utility model has the advantages that the three-layer shell is matched with the reinforcing plate, the stress holes are formed in the reinforcing plate, the mechanical strength of the sand casting mould is ensured while the material consumption is reduced, the printing time is shortened, meanwhile, the deformation holes are formed in the shell, the deformation Kong Xingbian replaces the edge angle deformation of the platform surface, and the phenomenon that the sand casting mould has a warp angle due to the different temperatures of upper and lower layers of materials during printing is avoided. Drawings Fig. 1 is a schematic structural diagram of a sand casting mold in an embodiment. Fig. 2 is a partial enlarged view of the area a in fig. 1. Fig. 3 is a schematic diagram of another sand casting mold structure. 1-A shell 2-a reinforcing plate 3-stress holes 4-an attaching surface 5-deformation holes 6-a sand casting die. Detailed Description The technical scheme of the invention is further described below through examples and with reference to the accompanying drawings. Examples: The 3D printing sand casting mold of this embodiment, as shown in fig. 1 and 2, includes a housing 1 and a reinforcing plate 2, the reinforcing plate 2 is disposed in the housing 1, and the reinforcing plate 2 is disposed flush with an attachment surface 4 of the housing and a printing platform. The shell 1 comprises an outer layer, a reinforcing layer and an inner layer, wherein the reinforcing layer is arranged between the outer layer and the inner layer and is distributed in a grid shape. The reinforcing plate 2 comprises a transverse reinforcing plate and a longitudinal reinforcing plate which are distributed in a crisscross manner in the shell, and a plurality of stress holes 3 are uniformly distributed on the reinforcing plate 2. The mechanical strength of the reinforcing plate can be improved