Multi-truss FDM 3D printer system

Abstract

The invention discloses a multi-truss FDM 3D printer system (taking double trusses as an example). The multi-truss FDM 3D printer system comprises a printer main body, a Z-axis movement mechanism, a first X-axis movement mechanism, a first truss, a second truss, a first spray head assembly, a second spray head assembly, a second X-axis movement mechanism, a second Y-axis movement mechanism, a first Y-axis movement mechanism, a printing substrate, a workpiece, a first nozzle, a second nozzle and the like. The problems that a large FDM3D printer is long in period and low in efficiency when printing a large workpiece are firstly solved; secondly, the high-cost problems of large investment and low output caused by the fact that a large-scale workpiece needs to be manually decomposed and printed by a plurality of devices in the working period and is manually assembled after being printed are solved; and finally, the blank that an existing FDM 3D printer cannot be upgraded and iterated is filled up, and an optimal scheme for upgrading the equipment without increasing the number of the equipment is provided for enterprises with the 3D printers.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, and in particular to a multi-truss FDM 3D printer system. Background Art

[0002] The current FDM 3D printers, whether single-head, dual-head or multi-head, always have only one working nozzle, which only switches between different materials or colors, and does not fundamentally improve the printing efficiency.

[0003] Some FDM 3D printers use two nozzles at a certain distance on the same extruder position to print two identical workpieces. However, this method can only be used for working conditions where two identical workpieces need to be printed. It does not play a substantial role in the printing efficiency of large workpieces and has a very small scope of use.

[0004] The above dual-nozzle and multi-nozzle solutions are only suitable for small desktop FDM 3D printers. For large 3D printers, the working conditions they face are mainly single-piece and large-piece situations. For large industrial 3D printers, their purpose is to print large workpieces as quickly as possible to achieve the purpose of using single-piece products.

[0005] For large FDM workpieces, the main methods currently adopted are: 1. Printing with a single device. The advantage is that the equipment investment is small, but the disadvantage is obvious, the processing cycle is long (large workpieces often take a week or even a month to print), and the risk of errors is high; 2. Multiple devices print different partitions of a workpiece at the same time, and then glue them after printing. The advantage is that the processing speed is fast and the delivery time is short. The disadvantage is that the equipment investment is large, and the block division before printing and the bonding after printing need to be done manually. At the same time, after printing, the overall accuracy of the workpiece is reduced due to splicing errors.

[0006] Based on the above reasons, when large FDM3D printers print large workpieces, problems such as low efficiency, long cycle, high labor input, and low precision still restrict the further expansion and application of this technology.

[0007] In summary, the current printing method of large-scale FDM 3D printers has certain defects, which makes the use cost and efficiency of large-scale FDM 3D printers still not ideal. Summary of the invention

[0008] The present invention provides a multi-truss FDM 3D printer system (a double truss is used as an example in this paper) to solve the problems of low efficiency and much manual participation when a large industrial FDM 3D printer prints large workpieces. To achieve the above purpose, the technical solution of the present invention is as follows.

[0009] A multi-truss FDM 3D printer system, comprising:

[0010] The printer body is used to carry the installation of all components of the 3D printer system;

[0011] A Z-axis motion mechanism, which is installed on the side of the printer body and is used to drive the printing substrate to move along the Z-axis direction guide rail;

[0012] A first X-axis motion mechanism, which is installed on one side of the top of the printer body and is used to drive the first truss to move along the X1-axis direction according to program instructions;

[0013] A second X-axis motion mechanism, which is installed on the other side of the top of the printer body and is used to drive the second truss to move along the X2-axis direction according to program instructions;

[0014] a first truss connected to the first X-axis motion mechanism and used to carry the first Y-axis motion mechanism and the first nozzle assembly;

[0015] a second truss connected to the second X-axis motion mechanism and used for carrying the second Y-axis motion mechanism and the second nozzle assembly;

[0016] A first Y-axis motion mechanism, which is disposed on the first truss and is used to drive the first nozzle assembly to move along the Y1-axis direction;

[0017] A second Y-axis motion mechanism, which is disposed on the second truss and is used to drive the second nozzle assembly to move along the Y2-axis direction;

[0018] A first nozzle assembly having a first nozzle mounted at a distal end thereof for printing a first region of a workpiece;

[0019] The second nozzle assembly has a second nozzle mounted on its end for printing a second area of ​​the workpiece.

[0020] As a further technical solution of the present invention, the Z-axis motion mechanism includes a motor, a guide rail, a screw and a coupling, etc., which are used to drive the printing substrate to move along the guide rail in the Z-axis direction.

[0021] As a further technical solution of the present invention, the first X-axis motion mechanism and the second X-axis motion mechanism both include a motor, a screw rod, a coupling, and the like.

[0022] As a further technical solution of the present invention, the first truss and the second truss both include a bottom plate, a sliding block, a connecting bracket, and the like.

[0023] As a further technical solution of the present invention, the first Y-axis motion mechanism and the second Y-axis motion mechanism both include a motor, a coupling, a screw and the like.

[0024] Beneficial effects achieved by the present invention:

[0025] First: It solves the problem of long cycle and low efficiency of large FDM3D printers when printing large workpieces;

[0026] Second: It solves the high cost problem of large workpieces that need to be manually disassembled, printed by multiple devices, and manually assembled after printing, resulting in high investment and low output when the deadline is tight;

[0027] Third: It solves the backward manufacturing method inherent in FDM3D printers, which replaces efficiency with quantity. It can also further improve the efficiency of a single FDM3D printer by increasing the number of truss structures, thus providing a technical basis for the upgrade and iteration of existing FDM3D printers. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the printing machine structure of a multi-truss FDM3D printer system (this paper takes a double-truss as an example);

[0029] Figure 2 It is a front view of a multi-truss FDM3D printer system;

[0030] Figure 3 A top view of a multi-truss FDM3D printer system;

[0031] Figure 4 This is a schematic diagram of the printing area;

[0032] Figure 5 Disassembly diagram of the printing area;

[0033] Figure 6 Break out the front view for the print area.

[0034] Notes on figure marks: 1-printer body, 2-Z-axis motion mechanism, 3-first X-axis motion mechanism, 4-first truss, 5-second truss, 6-first nozzle assembly, 7-second nozzle assembly, 8-second X-axis motion mechanism, 9-second Y-axis motion mechanism, 10-first Y-axis motion mechanism, 11-printing substrate, 12-workpiece, 12-1-first area, 12-2-second area, 13-first nozzle, 14-second nozzle. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is described in detail below in conjunction with the specific drawings.

[0036] See also Figures 1 to 6The embodiment of the present invention provides a multi-truss FDM 3D printer system (a double truss is taken as an example in this paper), including: a printer body 1, a Z-axis motion mechanism 2, a first X-axis motion mechanism 3, a first truss 4, a second truss 5, a first nozzle assembly 6, a second nozzle assembly 7, a second X-axis motion mechanism 8, a second Y-axis motion mechanism 9, a first Y-axis motion mechanism 10, a printing substrate 11, a workpiece 12, a first nozzle 13, a second nozzle 14, etc.;

[0037] The printer body 1 is a large industrial 3D printer body used to carry the installation of all components of the 3D printer system;

[0038] A Z-axis motion mechanism 2, which is installed on the side of the printer body 1, and the Z-axis motion mechanism 2 includes a motor, a guide rail, a screw rod and a coupling, etc., and is used to drive the printing substrate 11 to move along the guide rail in the Z-axis direction;

[0039] A first X-axis motion mechanism 3 is mounted on one side of the top of the printer body 1. The first X-axis motion mechanism 3 includes a motor, a lead screw, a coupling, etc., and is used to drive the first truss 4 to move along the X1-axis direction according to program instructions;

[0040] A second X-axis motion mechanism 8 is installed on the other side of the top of the printer body 1. The second X-axis motion mechanism 8 includes a motor, a screw rod, a coupling, etc., and is used to drive the second truss 5 to move along the X2-axis direction according to program instructions;

[0041] A first truss 4 connected to the first X-axis motion mechanism 3, wherein the first truss 4 comprises a bottom plate, a slider, a connecting bracket, etc., and is used to carry the first Y-axis motion mechanism 10 and the first nozzle assembly 6;

[0042] A second truss 5 connected to the second X-axis motion mechanism 8, wherein the second truss 5 comprises a bottom plate, a slider, a connecting bracket, etc., and is used to carry the second Y-axis motion mechanism 9 and the second nozzle assembly 7;

[0043] A first Y-axis motion mechanism 10, which is disposed on the first truss 4, and the first Y-axis motion mechanism 10 comprises a motor, a coupling, a screw, etc., and is used to drive the first nozzle assembly 6 to move along the Y1-axis direction;

[0044] A second Y-axis motion mechanism 9, which is disposed on the second truss 5, and the second Y-axis motion mechanism 9 comprises a motor, a coupling, a screw, etc., and is used to drive the second nozzle assembly 7 to move along the Y2-axis direction;

[0045] A first nozzle assembly 6, at the end of which is mounted a first nozzle 13 for printing a first area 12-1 of a workpiece 12;

[0046] The second nozzle assembly 7 has a second nozzle 14 installed at its end for printing the second area 12 - 2 of the workpiece 12 .

[0047] In the present invention, since the first nozzle assembly 6 and the second nozzle assembly 7 are respectively mounted on the first truss 4 and the second truss 5, and the movement position of the first nozzle assembly 6 is driven by the first X-axis motion mechanism 3 and the first Y-axis motion mechanism 10, and the movement position of the second nozzle assembly 7 is driven by the second X-axis motion mechanism 8 and the second Y-axis motion mechanism 9, the first nozzle assembly 6 and the second nozzle assembly 7 are two independently moving nozzle assemblies, rather than the current linked double nozzles that can only print two congruent workpieces.

[0048] As described above, the first nozzle 13 and the second nozzle 14 can separately print two different areas of a large workpiece 12 on the same plane, thereby reducing the printing time of each layer of a large workpiece 12 by half.

[0049] When printing the nth layer, the boundary line between the first area 12-1 printed by the first nozzle 13 and the second area 12-2 printed by the second nozzle 14 is on the left side of the center line. When printing the n+1th layer, the boundary line between the first area 12-1 printed by the first nozzle 13 and the second area 12-2 printed by the second nozzle 14 is on the right side of the center line. Figure 4 , 5 6. Therefore, the first region 12-1 and the second region 12-2 can form a mutually embedded structure, thereby ensuring a secure combination of the first region 12-1 and the second region 12-2 of the workpiece 12, and ensuring the strength and accuracy of the printed workpiece 12.

[0050] The design of the above-mentioned multi-truss FDM3D printer system (this article takes a double truss as an example) first solves the problem of long cycle and low efficiency of large FDM3D printers when printing large workpieces through the simultaneous partitioning of multiple trusses and multiple nozzles; secondly, it solves the high cost problem of large investment and low output caused by the need for manual decomposition of large workpieces, printing with multiple devices, and manual assembly after printing when rushing to meet deadlines; finally, it fills the gap of the existing FDM3D printers that cannot be upgraded and iterated, and provides companies with existing 3D printers with an optimal solution for upgrading equipment without increasing the number of equipment.

[0051] It should be noted that, in this article, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0052] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multi-truss FDM 3D printer system, characterized in that: include: The printer body is used to carry the installation of all components of the 3D printer system; A Z-axis motion mechanism, which is installed on the side of the printer body and is used to drive the printing substrate to move along the Z-axis direction guide rail; A first X-axis motion mechanism, which is mounted on one side of the top of the printer body and is used to drive the first truss to move along the X1-axis direction; A second X-axis motion mechanism, which is installed on the other side of the top of the printer body and is used to drive the second truss to move along the X2-axis direction; a first truss connected to the first X-axis motion mechanism and used to carry the first Y-axis motion mechanism and the first nozzle assembly; a second truss connected to the second X-axis motion mechanism and used for carrying the second Y-axis motion mechanism and the second nozzle assembly; A first Y-axis motion mechanism, which is disposed on the first truss and is used to drive the first nozzle assembly to move along the Y1-axis direction; A second Y-axis motion mechanism, which is disposed on the second truss and is used to drive the second nozzle assembly to move along the Y2-axis direction; A first nozzle assembly having a first nozzle mounted at a distal end thereof for printing a first region of a workpiece; The second nozzle assembly has a second nozzle mounted on its end for printing a second area of ​​the workpiece.

2. A multi-truss FDM 3D printer system according to claim 1, characterized in that: The Z-axis motion mechanism comprises a motor, a guide rail, a lead screw and a coupling, which is used to drive the printing substrate to move along the guide rail in the Z-axis direction.

3. A multi-truss FDM 3D printer system according to claim 1, characterized in that: The first X-axis motion mechanism and the second X-axis motion mechanism both include a motor, a screw and a coupling. The first X-axis motion mechanism is used to drive the first truss to move along the X1 axis direction, and the second X-axis motion mechanism is used to drive the second truss to move along the X2 axis direction.

4. A multi-truss FDM 3D printer system according to claim 1, characterized in that: The first truss and the second truss both include a base plate, a slider and a connecting bracket. The first truss is used to carry the first Y-axis motion mechanism and the first nozzle assembly, and the second truss is used to carry the second Y-axis motion mechanism and the second nozzle assembly.

5. A multi-truss FDM 3D printer system according to claim 1, characterized in that: The first Y-axis motion mechanism and the second Y-axis motion mechanism both include a motor, a coupling and a screw rod. The first Y-axis motion mechanism is used to drive the first nozzle assembly to move along the Y1-axis direction, and the second Y-axis motion mechanism is used to drive the second nozzle assembly to move along the Y2-axis direction.

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