Consumable feeding guide mechanism of 3D printer

Abstract

The invention discloses a consumable feeding guide mechanism of a 3D printer. The consumable feeding guide mechanism comprises a cover body, wherein screw rods are correspondingly and rotatably connected to the interiors of two sides of the cover body; threaded sleeves are in threaded connection to the two groups of screw rods; the two groups of threaded sleeves are rotatably connected to two endsof an adjusting roller through connecting rods; a protective cover is welded to the outer top of the cover body; a first driving motor is mounted in the protective cover; a wire inlet pulley and a wire outlet pulley are arranged on two sides of the cover body; two groups of clamping rollers are arranged on one side of the wire outlet pulley; and one end of each clamping roller is connected to anoutput shaft of a second driving motor through a coupling. According to the consumable feeding guide mechanism of the 3D printer, the first driving motor is controlled to drive the screw rods to rotate, so that the adjusting roller is driven to move up and down, and therefore, the tensioning degree of consumables is adjusted in real time, and the conveying stability of the consumables is guaranteed; and an air cylinder is started to drive the clamping rollers above to move downwards to clamp the consumables, so that an auxiliary traction function is realized, and the guide capacity of the mechanism is improved.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, and in particular relates to a 3D printer consumable feeding guide mechanism. Background technique [0002] 3D printer, a machine of rapid prototyping technology, is a technology based on a digital model file, using bondable materials such as powdered metal or plastic, to construct objects by layer-by-layer printing. In the past, it was often used to make models in the fields of mold manufacturing and industrial design, and is now gradually being used in the direct manufacture of some products. Its principle is: Put the data and raw materials into the 3D printer, and the machine will manufacture the product layer by layer according to the program, and the printed product can be used immediately. [0003] The consumables of 3D printers are basically transmitted in the form of wires inside the printer, passing through the guiding mechanism, and one end is fixed on the take-up roller. Because t...

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Problems solved by technology

[0003] The consumables of 3D printers are basically transmitted in the form of wires inside the printer, passing through the guide mechanism, and one end is fixed on the take-up roller. Because the wire itself has a certain toughness, it is difficult to maintain a tensioned state and the transmission is inconvenient. However, the existing 3D printers The feeding guide mechanism generally only has a basic guiding function; at the same time, it only relies on the traction force of the take-up roller as the driving source, and the wire is likely to break when the force on the end is too large

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