Automatic head replacing device for FDM printing equipment
A technology of printing equipment and printing head, which is applied in manufacturing auxiliary devices, metal processing equipment, 3D object support structures, etc., and can solve problems such as material leakage, printing head connection failure, and unstable connection.
Pending Publication Date: 2018-12-04
NINGXIA KOCEL MOLD
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Problems solved by technology
The device can use the clamping mechanism to clamp the printing head to realize automatic head replacement. In the device of the invention, when the printing head is replaced, the extrusion head is directly placed in the extrusion head placement groove, and the sealing of the structure and the printing head are not realized. The screwing function during disassembly and assembly, after the print head is replaced, the residual printing material will solidify at room temperature, and the print head will be blocked. If the print head is not cleaned in time, if the print head is used again, the print head needs to be removed manually to clean the print head The residual material inside will cause the print head to fail to connect or the connection to be unstable, and the problem of material leakage during printing will also occur
Method used
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[0016] Such as figure 1 , figure 2 and image 3 Shown is the automatic head-changing device of the FDM printing equipment of the present invention, including an extrusion shaft 3 movable along the X-axis, Y-axis and Z-axis direction and an automatic head-changing device 4 fixed on the frame, the extrusion shaft 3 The discharge end of the discharge hole is provided with a discharge hole, and the internal thread of the discharge hole is connected with a print head 5. In this embodiment, the extrusion axis 3 is installed on the Y-axis frame and can move along the Y-axis direction of the Y-axis frame. The Y-axis frame is straddled between two X-axis frames and can move along the X-axis frame. The axis 3 itself can move along the Z axis, and the printing track of the print head 5 can be realized by controlling the movement of the extrusion axis 3 along the X axis, Y axis and Z axis through the control part of the FDM printer. The automatic head changing device 4 includes a prin...
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The invention relates to an on-line automatic replacing device for a print head, belonging to the technical field of FDM 3D printing equipment. The on-line automatic replacing device comprises an extrusion shaft and an automatic head replacing device, wherein a discharge hole is formed in the discharge end of the extrusion shaft; a print head is arranged in the discharge hole and is in threaded connection with the discharge hole; the automatic head replacing device comprises a print head fixing seat; a plurality of mounting holes are formed in the print head fixing seat; the gear shafts of a plurality of intermeshed transmission gears are respectively arranged in the mounting holes and are rotatably connected with the mounting holes; a driving motor is fixed on a frame; a driving gear is connected with the output shaft of the driving motor and is meshed with one of the transmission gears; the driving motor can rotate forward or backward to realize the forward rotation or backward rotation of each transmission gear; the center of the shaft end of each transmission gear is provided with a regularly-polygonal print head transposition hole which is used for holding one print head; andthe outer periphery of the lower part of each print head is provided with a polygonal shape in clearance fit with the print head transposition hole.
Description
technical field [0001] The invention relates to the technical field of print head auxiliary equipment for FDM 3D printing equipment, in particular to an online automatic replacement device for print heads. Background technique [0002] With people's continuous exploration and innovation in the field of equipment manufacturing, 3D printing additive manufacturing has been widely concerned and popularized in various manufacturing fields, among which FDM 3D printing technology is one of the main methods of additive manufacturing. [0003] The print head and the outlet of the FDM equipment are generally threaded, and the viscous material can only be extruded after being heated. At present, FDM has some bottlenecks in the field of industrial printing. For example, when printing complex product molds, due to the different outline sizes of parts of the same product, when printing with the same size print head, efficiency and quality cannot be balanced. Usually, if a mold with a lar...
Claims
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Login to View More IPC IPC(8): B29C64/118B29C64/35B29C64/30B33Y40/00
CPCB33Y40/00
Inventor 马睿杨磊黄部东
Owner NINGXIA KOCEL MOLD