3D printing hot bed capable of achieving automatic demolding

Abstract

The invention relates to a 3D printing hot bed capable of achieving automatic demolding. The 3D printing hot bed comprises an upper hot bed horizontally arranged, a lower hot bed horizontally arrangedunder the upper hot bed, and a lifting driving device used for driving the upper hot bed and the lower hot bed to move up and down relatively. A plurality of through holes in the vertical direction are uniformly formed in the upper hot bed, columnar protrusions which are equal to the through holes in number and matched with the through holes in a one-to-one correspondence mode are integrally andvertically arranged on the upper end face of the lower hot bed, the top faces of the columnar protrusions are equal in height, the height of the columnar protrusions is larger than the thickness of the upper hot bed, and when the top faces of the columnar protrusions align at the upper end face of the upper hot bed, a complete printing bed face is formed. An existing single hot bed structure is improved into a split structure, the upper hot bed and the lower hot bed are matched with each other, the lifting driving device drives the upper hot bed and the lower hot bed to move up and down relatively, so that automatic demolding is achieved. According to the 3D printing hot bed, the demolding efficiency can be greatly improved, and the rejection rate is reduced. The 3D printing hot bed is particularly suitable for large-scale additive manufacturing.

Description

Technical field [0001] The invention belongs to the technical field of 3D printing, and specifically relates to a 3D printing hot bed capable of automatically demolding. Background technique [0002] In the prior art, the 3D printing product is heated by a printing hot bed, so that the bottom surface of the product is slightly melted, so as to be fixed on the printing hot bed. After printing, the printing hot bed has not cooled down, and there is residual heat at the bottom of the product for a short time, so the product is still attached to the printing hot bed, and the product is difficult to easily remove from the printing hot bed. At present, the commonly used method is to use tools such as shovel to separate the product from the printing hot bed by brute force. First, it is very difficult to shovel the product from the printing hot bed. Secondly, it is easy to damage the product during the shoveling process. Improper operation can easily cause personal injury. Summary of t...

AI Technical Summary

Problems solved by technology

After printing, the printing heat bed has not cooled down, and there is residual heat at the bottom of the product for a short time, so the product is still attached to the printing heat bed, and the product is difficult to remove from the printing heat bed easily

At present, the commonly used method is to use tools such as shovels to separate the product from the printing heat bed by force. First, it is very difficult to shovel the product from the printing heat bed. Secondly, it is easy to damage the product during the process of shoveling. If Improper operation can easily cause personal injury

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