Sand cleaning structure of 3d printed sand core
A 3D printing and sand cleaning technology, applied in cores, casting equipment, molds, etc., can solve the problems of difficult sand cleaning process, lack of meat, complex internal structure of 3D printing sand cores, etc., to improve the operation of sand cleaning. The effect of improving sand cleaning efficiency
Active Publication Date: 2018-07-24
NINGXIA KOCEL MOLD
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Problems solved by technology
[0004] During the production process, it was found that the internal structure of the 3D printed sand core is generally more complicated, and there are always some areas inside the sand core that cannot be touched and observed. At the same time, due to the certain adhesion of the dry sand, the sand cleaning process in these areas is very difficult.
If the dry sand in these dead corners of sand cleaning remains, it will cause defects such as sand inclusions and lack of meat in the corresponding parts of the casting.
In the early stage, the endoscope was used to check whether there was any omission of sand cleaning, which greatly reduced the production efficiency
Method used
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[0021] The illustrated embodiments are disclosed with reference to the drawings. It should be understood, however, that the disclosed embodiments are merely embodiments that may be shown in various and alternative forms. The figures are not necessarily to scale and some features may be exaggerated or minimized to show details of particular components. Specific structural and functional details disclosed are not to be interpreted as limiting, but as a representative basis for teaching one skilled in the art how to practice the present disclosure.
[0022] refer to figure 1 and figure 2 , the present invention provides a sand cleaning structure for a 3D printing sand core, comprising: a sand cleaning hole 9 arranged at the dead angle position 2 of the sand cleaning core of the 3D printing sand core; optionally accommodated in the sand cleaning hole 9 to block the sand cleaning hole 9 of the sticky core 10; and a part of the sand cleaning hole 9 and a part of the sticky core ...
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The invention provides a sand removing structure for a 3D printed sand core. The sand removing structure for the 3D printed sand core comprises a sand removing hole arranged at the sand removing dead corner position of the 3D printed sand core, a binding core selectively contained in the sand removing hole to plug the sand removing hole, and a sand filling groove formed by a part of the sand removing hole and a part of the binding core jointly and facing towards an outer opening of the 3D printed sand core. The sand removing structure for the 3D printed sand core improves the sand removing efficiency of the 3D printed sand core on the premise of not affecting the structural strength of the sand core.
Description
technical field [0001] The invention is applied to the field of 3D printing sand core casting production, and relates to a sand cleaning structure of the 3D printing sand core. Background technique [0002] With the promotion and application of 3D printing technology, the current method of using 3D printing sand cores for casting production has gradually become popular in the industry. [0003] Because 3D technology can realize high-precision printing of sand cores with various complex structures, without considering the problems of mold removal and material removal in traditional processes, this process method is suitable for the production of castings with various complex structures. In process design, in order to improve production efficiency and casting dimensional accuracy, it is necessary to reduce the number of process cores as much as possible under the premise of satisfying its own strength. After the sand core is printed, use compressed air to blow out all the exc...
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IPC IPC(8): B22C9/10B22C13/12B33Y30/00
CPCB22C9/10B22C13/12B33Y30/00
Inventor 杜文强
Owner NINGXIA KOCEL MOLD