Forming cylinder structure and forming method of additive manufacturing equipment

Abstract

The invention discloses a forming cylinder structure of additive manufacturing equipment and a forming method. According to the forming cylinder structure of the additive manufacturing equipment, an electromagnetic driving structure is formed by using a primary winding on the outer wall of a forming cylinder body and a secondary winding wound around the outer wall of a traction conductor, a magnetic field is generated in a forming cylinder after the primary winding is electrified, the traction conductor generates induced electromotive force under the action of magnetic line cutting of the magnetic field generated in the forming cylinder so as to generate an induced current, the induced current interacts with the magnetic field generated by the primary winding, and thus the traction conductor bears electromagnetic force in the vertical direction; and the electromagnetic force can make a forming piston suspend and stay after overcoming the dead weight of the forming piston, the purpose of driving the forming piston to move up and down is realized by controlling the magnitude of the electromagnetic force, and the forming piston slides up and down by taking the inner wall of the forming cylinder body as a moving track. The forming cylinder structure of the additive manufacturing equipment has the simple structure, does not need an external driving piston, and reduces the external structure of the forming cylinder; and the internal height of the forming cylinder is the heights of a structure to be formed, the forming piston and the traction conductor, and the complexity degree of the integral forming structure is thus reduced.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, and in particular relates to a forming cylinder structure and a forming method of additive manufacturing equipment. Background technique [0002] At present, the forming cylinder of additive manufacturing equipment generally adopts the form that the screw drives the piston to move up and down from the bottom of the forming piston, so the height of the forming cylinder is at least twice the height of the formed part. In order to control the overall height of the equipment, the height of the formed part will be limited; if the height of the formed part is increased, the space under the forming piston will be occupied by the screw, resulting in a substantial increase in the height of the equipment, which in turn will lead to a substantial increase in equipment assembly and maintenance costs Increase will also bring a lot of inconvenience to the use of equipment. Contents of the inve...

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Problems solved by technology

In order to control the overall height of the equipment, the height of the formed part will be limited; if the height of the formed part is increased, the space under the forming piston will be occupied by the screw, resulting in a substantial increase in the height of the equipment, which in turn will lead to a substantial increase in equipment assembly and maintenance costs increase, it will also bring a lot of inconvenience to the use of equipment

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