Three-dimensional printer

Abstract

The invention relates to the technical field of three-dimensional printing equipment, in particular to a three-dimensional printer. The printer comprises a printer body, a base is fixedly connected to the lower surface of the printer body, a spray head is fixedly connected to the lower surface of a printer body moving part and comprises a shell fixedly connected to the lower surface of the printer body moving part, a pipe hole is formed in the upper surface of the shell, a spray pipe is fixedly connected to the inner wall of the pipe hole, and an inner top wall of the shell is provided with a clamping opening. According to the printer, by arranging an electric push rod, a sliding rod can be driven to move up and down; by arranging a spring, a collecting box can be pushed out when a collecting mechanism moves to the position below the spray pipe; and by arranging a pull rod, the collecting mechanism and a water cooling mechanism can be connected, the pull rod can drive a piston to move downwards to enable water in a water storage tank to enter a water cooling ring to cool the spray pipe, so that consumed materials are rapidly cooled, the phenomenon that the overheated consumed materials continue to flow out is avoided, and then the problem that wire drawing occurs when the spray head moves is solved through the three-dimensional printer.

Description

technical field [0001] The invention relates to the technical field of 3D printing equipment, in particular to a 3D printer. Background technique [0002] Three-dimensional printers, also known as three-dimensional printers, are a rapid prototyping process that produces three-dimensional models layer by layer. Its operation process is similar to that of traditional printers, except that traditional printers print ink onto paper to form Two-dimensional plane drawings, while three-dimensional printers stack liquid photosensitive resin materials, molten plastic filaments, gypsum powder and other materials by spraying binders or extruding to form three-dimensional entities. [0003] Existing 3D printers often have the problem of stringing during the printing process. In order to avoid the problem of stringing, the method of material withdrawal is usually used, that is, before the nozzle moves to the next point, the consumables will be pulled back for a certain distance in the op...

AI Technical Summary

Problems solved by technology

[0003] Existing 3D printers often have the problem of stringing during the printing process. In order to avoid the problem of stringing, the method of material withdrawal is usually used, that is, before the nozzle moves to the next point, the consumables will be pulled back for a certain distance in the opposite direction. , when moving to the next point, the consumables are extruded again, but in the four situations of insufficient retraction distance, too slow retraction speed, too high temperature of the nozzle, and too long suspension moving distance, at the nozzle of the nozzle, There will still be some consumables flowing out, so that the drawing problem cannot be completely solved, resulting in printing failure, and the collected materials cannot be recycled again

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