Efficient parallel large 3D printer

Abstract

The invention discloses an efficient parallel large 3D printer which comprises a first printing head mechanism and a second printing head mechanism which are oppositely arranged on a working platform. The first Z-axis driving mechanism drives the first printing head mechanism to move in the Z1-axis direction in the vertical plane, and the second Z-axis driving mechanism drives the second printing head mechanism to move in the Z2-axis direction in the vertical plane. The X-axis direction is perpendicular to the Y-axis direction, the Z1-axis direction is perpendicular to the Z2-axis direction, the included angle between the Z1-axis direction and the X-axis direction is 45 degrees, and the Y-axis direction is perpendicular to the Z1-axis direction and the Z2-axis direction; the axis of a nozzle of the first printing head mechanism is perpendicular to the Z1-axis direction, the axis of a nozzle of the second printing head mechanism is perpendicular to the Z2-axis direction, and the nozzles of the first printing head mechanism and the second printing head mechanism face the working platform. The first printing head mechanism and the second printing head mechanism of which the nozzles are arranged at 45 degrees are used for printing in parallel, and the third moving direction is inclined at 45 degrees, so that the processing speed and the processing precision are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printers, and in particular to a high-efficiency parallel large-scale 3D printer. Background Art

[0002] 3D printing technology can be used in jewelry, footwear, industrial design, architecture, engineering and construction (AEC), automobiles, aerospace, dental and medical industries, education, geographic information systems, civil engineering and many other fields. 3D printing technology has shown great application potential in the medical field, and can be used in many branches such as personalized implants, prosthetic customization, personalized rehabilitation equipment, surgical guides, orthodontics and orthotics. Due to the characteristics of the medical field, 3D printers are required to have the characteristics of fast processing speed, low processing cost, flexible design and high precision. Therefore, it is necessary to design a 3D printer suitable for the medical field. Summary of the invention

[0003] The present invention provides a high-efficiency parallel large-scale 3D printer to solve the above technical problems.

[0004] In order to achieve the above object, the technical solution of the present invention is:

[0005] An efficient parallel large-scale 3D printer comprises a first print head mechanism and a second print head mechanism which are arranged oppositely on a working platform;

[0006] The first X-axis driving mechanism drives the first print head mechanism to move along the X-axis direction in the horizontal plane, and the second X-axis driving mechanism drives the second print head mechanism to move along the X-axis direction in the horizontal plane;

[0007] The first Y-axis driving mechanism drives the first print head mechanism to move along the Y-axis direction in the horizontal plane, and the second Y-axis driving mechanism drives the second print head mechanism to move along the Y-axis direction in the horizontal plane;

[0008] The first Z-axis driving mechanism drives the first print head mechanism to move along the Z1-axis direction in the vertical plane, and the second Z-axis driving mechanism drives the second print head mechanism to move along the Z2-axis direction in the vertical plane;

[0009] The X-axis and Y-axis directions are perpendicular to each other, the Z1-axis and Z2-axis directions are perpendicular to each other, the angle between the Z1-axis and the X-axis direction is 45°, and the Y-axis direction is perpendicular to both the Z1-axis and Z2-axis directions;

[0010] The axis of the nozzle of the first print head mechanism is perpendicular to the Z1 axis direction, the axis of the nozzle of the second print head mechanism is perpendicular to the Z2 axis direction, and the nozzles of the first print head mechanism and the second print head mechanism are both facing the working platform.

[0011] Preferably, the first X-axis driving mechanism drives the first sliding frame to move along the X-axis direction; the first Z-axis driving mechanism drives the first sliding beam to move along the Z1-axis direction; the first Y-axis driving mechanism drives the first print head mechanism on the first sliding beam to move along the Y-axis direction.

[0012] Preferably, the second X-axis drive mechanism drives the second sliding frame to move along the X-axis direction; the second Z-axis drive mechanism drives the second sliding beam to move along the Z2-axis direction; the second Y-axis drive mechanism drives the second print head mechanism on the second sliding beam to move along the Y-axis direction.

[0013] Preferably, the first sliding frame comprises two first upright posts arranged opposite to each other and a first crossbeam connecting the two first upright posts; the first X-axis driving mechanisms are two groups and are installed on the working platform, and the two groups of first X-axis driving mechanisms respectively drive the two first upright posts to move along the X-axis direction;

[0014] There are two sets of first Z-axis driving mechanisms which are respectively installed on the two first columns. The two sets of first Z-axis driving mechanisms are respectively connected to the two ends of the first sliding beam and synchronously drive the first sliding beam to move along the Z1 axis direction.

[0015] Preferably, the first column has a first inclined surface along the Z1 axis direction, and the end of the first sliding beam is connected to the first inclined surface through a first guide assembly.

[0016] Preferably, the second sliding frame comprises two second upright posts arranged opposite to each other and a second crossbeam connecting the two second upright posts; the second X-axis driving mechanism comprises two groups and is installed on the working platform, and the two groups of second X-axis driving mechanisms respectively drive the two second upright posts to move along the X-axis direction;

[0017] The second Z-axis driving mechanism consists of two groups and is respectively installed on the two second columns. The two groups of second Z-axis driving mechanisms are respectively connected to the two ends of the second sliding beam and synchronously drive the second sliding beam to move along the Z2-axis direction.

[0018] Preferably, the second column has a second inclined surface along the Z2 axis direction, and the end of the second sliding beam is connected to the second inclined surface via a second guide assembly.

[0019] Preferably, the second column includes: a second lower cross bar, a second oblique support rod, a second upper cross bar and a second vertical support rod; the second lower cross bar, the second oblique support rod and the second upper cross bar are fixedly connected to form a "Z" shape, the second vertical support rod is arranged perpendicular to the working platform and the two ends are respectively fixedly connected to the second lower cross bar and the second upper cross bar.

[0020] Preferably, a first processing space is formed in the first sliding frame, and a second processing space is formed in the second sliding frame, and the second sliding frame can enter the first processing space from a side opposite to the first sliding beam.

[0021] Preferably, a first processing space is formed in the first sliding frame, a second processing space is formed in the second sliding frame, and the first sliding frame can enter the second processing space from a side opposite to the second sliding beam.

[0022] Beneficial effects:

[0023] The high-efficiency parallel large-scale 3D printer disclosed in the present application prints in parallel through the first print head mechanism and the second print head mechanism whose nozzles are set at 45°. Setting the third moving direction at an angle of 45° can increase the adjustment speed of the first print head mechanism and the second print head mechanism in the vertical and horizontal directions, thereby increasing the processing speed of the 3D printer; and the axis of the nozzle of the first print head mechanism is perpendicular to the Z1 axis direction, and the axis of the nozzle of the second print head mechanism is perpendicular to the Z2 axis direction, which can avoid the influence of the vibration generated by the nozzle discharge mechanism on the nozzle position and improve the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 This is a schematic diagram of the structure of a high-efficiency parallel large-scale 3D printer disclosed in Example 1 of the present invention;

[0026] Figure 2 A front view of the high-efficiency parallel large-scale 3D printer disclosed in Example 1 of the present invention;

[0027] Figure 3 A top view of the high-efficiency parallel large-scale 3D printer disclosed in Example 1 of the present invention;

[0028] Figure 4 It is a left view of the high-efficiency parallel large-scale 3D printer disclosed in Example 1 of the present invention;

[0029] Figure 5 This is a right view of the high-efficiency parallel large-scale 3D printer disclosed in Example 1 of the present invention.

[0030] 1. working platform; 2. first print head mechanism; 3. second print head mechanism; 41. first sliding frame; 411. first column; 4111. first lower cross bar; 4112. first oblique support bar; 4113. first vertical support bar; 412. first cross beam; 42. first sliding beam; 51. second sliding frame; 511. second column; 5111. second lower cross bar; 5112. second oblique support bar; 5113. second upper cross bar; 5114. second vertical support bar; 512. second cross beam; 52. second sliding beam. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] Efficient parallel large 3D printer, combined Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it comprises a first print head mechanism 2 and a second print head mechanism 3 which are arranged oppositely on a working platform 1;

[0034] The first X-axis driving mechanism drives the first print head mechanism 2 to move along the X-axis direction in the horizontal plane, and the second X-axis driving mechanism drives the second print head mechanism 3 to move along the X-axis direction in the horizontal plane;

[0035] The first Y-axis driving mechanism drives the first print head mechanism 2 to move along the Y-axis direction in the horizontal plane, and the second Y-axis driving mechanism drives the second print head mechanism 3 to move along the Y-axis direction in the horizontal plane;

[0036] The first Z-axis driving mechanism drives the first print head mechanism 2 to move along the Z1-axis direction in the vertical plane, and the second Z-axis driving mechanism drives the second print head mechanism 3 to move along the Z2-axis direction in the vertical plane;

[0037] The X-axis and Y-axis directions are perpendicular to each other, the Z1-axis and Z2-axis directions are perpendicular to each other, the angle between the Z1-axis and the X-axis direction is 45°, and the Y-axis direction is perpendicular to both the Z1-axis and Z2-axis directions;

[0038] The axis of the nozzle of the first print head mechanism 2 is perpendicular to the Z1 axis direction, and the axis of the nozzle of the second print head mechanism 3 is perpendicular to the Z2 axis direction. The nozzles of the first print head mechanism 2 and the second print head mechanism 3 are both facing the working platform 1.

[0039] First, by printing in parallel with the first print head mechanism and the second print head mechanism, each printing half of the part, the printing time can be shortened to half. Second, the first print head mechanism and the second print head mechanism move along three motion axes, of which the third motion axis is set at an angle of 45°. The first print head mechanism and the second print head mechanism move along the third moving direction to simultaneously change their height and X-axis positions. Since the parts processed by 3D printers are mostly complex spatial surfaces, the positions of the first print head mechanism and the second print head mechanism of the 3D printer need to be changed simultaneously in the vertical direction and the X-axis direction. The third motion axis is set at an angle of 45° to increase the speed of position adjustment of the first print head mechanism and the second print head mechanism. Therefore, the cooperation of the above two points can solve the problems of long printing time and low efficiency of traditional 3D printers.

[0040] Furthermore, the print head mechanism of the existing 3D printer needs to output the printing material through the discharge mechanism, and vibration will be generated during the operation of the discharge mechanism. When the nozzle is set at 45 degrees and moves in the vertical direction, the vibration will generate a component force in the moving direction, affecting the movement of the print head mechanism and the stability of the nozzle, thereby affecting the processing accuracy of the 3D printer. However, the nozzle of the present application is set perpendicular to the movement direction, and the vibration generated by the discharge mechanism can be limited to the direction perpendicular to its movement direction, avoiding the vibration from affecting the movement of the print head mechanism and the stability of the nozzle, thereby improving the processing accuracy.

[0041] At the same time, the nozzle is set at 45° to change the angle of the printing material output, increase the direct contact of each layer of material, and increase the angle that does not require the design of a printing support structure, which can reduce the consumption of printing materials and improve printing efficiency.

[0042] Preferably, the first X-axis driving mechanism drives the first sliding frame 41 to move along the X-axis direction; the first Z-axis driving mechanism drives the first sliding beam 42 to move along the Z1-axis direction; the first Y-axis driving mechanism drives the first print head mechanism 2 to move along the Y-axis direction on the first sliding beam 42. The first sliding frame 41 and the first sliding beam 42 realize the installation and support of the first print head mechanism 2.

[0043] Preferably, the second X-axis driving mechanism drives the second sliding frame 51 to move along the X-axis direction; the second Z-axis driving mechanism drives the second sliding beam 52 to move along the Z2-axis direction; the second Y-axis driving mechanism drives the second print head mechanism 3 to move along the Y-axis direction on the second sliding beam 52. The second sliding frame 51 and the second sliding beam 52 realize the installation and support of the second print head mechanism 3.

[0044] Preferably, the first sliding frame 41 includes two first columns 411 arranged opposite to each other and a first crossbeam 412 connecting the two first columns 411; the first X-axis driving mechanism is composed of two groups and is installed on the working platform 1, and the two groups of first X-axis driving mechanisms respectively drive the two first columns 411 to move along the X-axis direction;

[0045] The first Z-axis drive mechanism is composed of two groups and is respectively installed on two first columns 411. The two groups of first Z-axis drive mechanisms are respectively connected to the two ends of the first sliding beam 42 and synchronously drive the first sliding beam 42 to move along the Z1 axis. The first column 411 and the first beam 412 can ensure the overall rigidity of the first sliding frame 41 and can increase the span, so that the 3D printer can be large-scale.

[0046] Preferably, the first column 411 has a first inclined surface along the Z1 axis direction, and the end of the first sliding beam 42 is connected to the first inclined surface through a first guide assembly. The component force of the gravity of the first sliding beam 42 and the force of the nozzle of the first print head mechanism act vertically on the first inclined surface, which is conducive to increasing the structural rigidity and thus ensuring the motion accuracy of the motion axis.

[0047] Preferably, the second sliding frame 51 includes two second upright posts 511 arranged opposite to each other and a second crossbeam 512 connecting the two second upright posts 511; the second X-axis driving mechanism is composed of two groups and is installed on the working platform 1, and the two groups of second X-axis driving mechanisms respectively drive the two second upright posts 511 to move along the X-axis direction;

[0048] There are two sets of second Z-axis driving mechanisms which are respectively installed on the two second columns 511 . The two sets of second Z-axis driving mechanisms are respectively connected to the two ends of the second sliding beam 52 and synchronously drive the second sliding beam 52 to move along the Z2-axis direction.

[0049] Preferably, the second column 511 has a second inclined surface along the Z2 axis direction, and the end of the second sliding beam 52 is connected to the second inclined surface through a second guide assembly. The component force of the gravity of the second sliding beam 52 and the force of the nozzle of the second print head mechanism act on the second inclined surface vertically, which is conducive to increasing the structural rigidity; and the forces of the first column 411, the second column 511 and the working platform 1 form a triangular structure. After the first inclined surface and the second inclined surface are transmitted to the working platform 1, the horizontal components of the forces of the first column 411 and the second column 511 on the working platform 1 are opposite, which is conducive to offsetting each other, reducing the vibration generated by the movement of the first column 411 and the second column 511, thereby ensuring the movement accuracy of the moving axis.

[0050] Specifically, the first column 411 includes: a first lower horizontal bar 4111, a first oblique support bar 4112 and a first vertical support bar 4113; the first lower horizontal bar 4111, the first oblique support bar 4112 and the first vertical support bar 4113 form a right triangle, so that the weight of the first column 411 can be reduced, so that the first X-axis drive mechanism can drive the first column 411 to move quickly.

[0051] Preferably, the second column 511 includes: a second lower crossbar 5111, a second oblique support rod 5112, a second upper crossbar 5113 and a second vertical support rod 5114; the second lower crossbar 5111, the second oblique support rod 5112 and the second upper crossbar 5113 are fixedly connected to form a "Z" shape, and the second vertical support rod 5114 is arranged perpendicular to the working platform 1 and has two ends fixedly connected to the second lower crossbar 5111 and the second upper crossbar 5113. The frame structure of the second column 511 can reduce weight while ensuring rigidity, so that the second X-axis drive mechanism can drive the second column 511 to move quickly.

[0052] Specifically, a linear guide is provided between the first lower cross bar 4111 and the working platform 1 for guiding, and a linear guide is also provided between the second lower cross bar 5111 and the working platform 1 for guiding; the first guide assembly and the second guide assembly also use linear guides, and the first guide assembly and the second guide assembly are respectively installed on the second inclined surface and the upper surface of the second inclined surface, or the first guide assembly and the second guide assembly are respectively installed on the second inclined surface and the lower surface of the second inclined surface.

[0053] Specifically, the first X-axis drive mechanism, the second X-axis drive mechanism, the first Y-axis drive mechanism, the second Y-axis drive mechanism, the first Z-axis drive mechanism and the second Z-axis drive mechanism can all adopt high-precision ball screw linear modules.

[0054] Preferably, a first processing space is formed in the first sliding frame 41, and a second processing space is formed in the second sliding frame 51, and the second sliding frame 51 can enter the first processing space from the opposite side of the first sliding beam 42. The second sliding frame 51 is smaller than the first sliding frame 41 to avoid mutual interference, so that the first print head mechanism 2 and the second print head mechanism 3 can print independently or in parallel.

[0055] Specifically, the second sliding frame 51 can enter the first processing space from the right-angled side of the first column 411, that is, from the side of the first vertical support rod 4113 away from the first sliding beam 42. In addition, the second vertical support rod 5114, the second oblique support rod 5112 and the second upper cross bar 5113 form a right triangle, and the triangular gap formed by the second oblique support rod 5112 and the second lower cross bar 5111 can make way for the second sliding beam 52, so that the first sliding beam 42 and the second sliding beam 52 can approach each other, ensuring that the nozzles of the first print head mechanism 2 and the second print head mechanism 3 can approach each other or even be close to each other, thereby eliminating the printing blind area in the middle part of the top of the processed part.

[0056] Example 2

[0057] The difference between this embodiment and Embodiment 1 is that the second sliding frame 51 is larger than the first sliding frame 41 .

[0058] Preferably, a first processing space is formed in the first sliding frame 41 , and a second processing space is formed in the second sliding frame 51 . The first sliding frame 41 can enter the second processing space from a side opposite to the second sliding beam 52 .

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. Highly efficient parallel large-scale 3D printer, characterized by: It comprises a first printing head mechanism (2) and a second printing head mechanism (3) which are arranged opposite to each other on a working platform (1); The first X-axis driving mechanism drives the first print head mechanism (2) to move along the X-axis direction in the horizontal plane, and the second X-axis driving mechanism drives the second print head mechanism (3) to move along the X-axis direction in the horizontal plane; The first Y-axis driving mechanism drives the first print head mechanism (2) to move along the Y-axis direction in the horizontal plane, and the second Y-axis driving mechanism drives the second print head mechanism (3) to move along the Y-axis direction in the horizontal plane; The first Z-axis driving mechanism drives the first print head mechanism (2) to move along the Z1-axis direction in the vertical plane, and the second Z-axis driving mechanism drives the second print head mechanism (3) to move along the Z2-axis direction in the vertical plane; The X-axis direction and the Y-axis direction are perpendicular to each other, the Z1-axis direction and the Z2-axis direction are perpendicular to each other, the Z1-axis direction and the X-axis direction have an angle of 45°, and the Y-axis direction is perpendicular to both the Z1-axis direction and the Z2-axis direction; The axis of the nozzle of the first print head mechanism (2) is perpendicular to the Z1 axis direction, the axis of the nozzle of the second print head mechanism (3) is perpendicular to the Z2 axis direction, and the nozzles of the first print head mechanism (2) and the second print head mechanism (3) are both facing the working platform (1).

2. The high-efficiency parallel large-scale 3D printer according to claim 1, characterized in that: The first X-axis driving mechanism drives the first sliding frame (41) to move along the X-axis direction; the first Z-axis driving mechanism drives the first sliding beam (42) to move along the Z1-axis direction; and the first Y-axis driving mechanism drives the first print head mechanism (2) to move on the first sliding beam (42) along the Y-axis direction.

3. The high-efficiency parallel large-scale 3D printer according to claim 2, characterized in that: The second X-axis driving mechanism drives the second sliding frame (51) to move along the X-axis direction; the second Z-axis driving mechanism drives the second sliding beam (52) to move along the Z2-axis direction; and the second Y-axis driving mechanism drives the second print head mechanism (3) to move on the second sliding beam (52) along the Y-axis direction.

4. The high-efficiency parallel large-scale 3D printer according to claim 3, characterized in that: The first sliding frame (41) comprises two first upright posts (411) arranged opposite to each other and a first crossbeam (412) connecting the two first upright posts (411); the first X-axis driving mechanism comprises two groups and is installed on the working platform (1), and the two groups of the first X-axis driving mechanism respectively drive the two first upright posts (411) to move along the X-axis direction; The first Z-axis driving mechanism comprises two groups and is respectively mounted on two first columns (411); the two groups of the first Z-axis driving mechanism are respectively connected to the two ends of the first sliding beam (42) and synchronously drive the first sliding beam (42) to move along the Z1-axis direction.

5. The high-efficiency parallel large-scale 3D printer according to claim 4, characterized in that: The first column (411) has a first inclined surface along the Z1 axis direction, and the end of the first sliding beam (42) is connected to the first inclined surface via a first guide assembly.

6. The high-efficiency parallel large-scale 3D printer according to claim 3, characterized in that: The second sliding frame (51) comprises two second upright posts (511) arranged opposite to each other and a second crossbeam (512) connecting the two second upright posts (511); the second X-axis driving mechanism comprises two groups and is installed on the working platform (1); the two groups of the second X-axis driving mechanism respectively drive the two second upright posts (511) to move along the X-axis direction; The second Z-axis driving mechanism comprises two groups and is respectively mounted on two second upright posts (511); the two groups of the second Z-axis driving mechanism are respectively connected to the two ends of the second sliding beam (52) and synchronously drive the second sliding beam (52) to move along the Z2-axis direction.

7. The high-efficiency parallel large-scale 3D printer according to claim 6, characterized in that: The second column (511) has a second inclined surface along the Z2 axis direction, and the end of the second sliding beam (52) is connected to the second inclined surface via a second guide assembly.

8. The high-efficiency parallel large-scale 3D printer according to claim 7, characterized in that: The second column (511) comprises: a second lower cross bar (5111), a second oblique support bar (5112), a second upper cross bar (5113) and a second vertical support bar (5114); the second lower cross bar (5111), the second oblique support bar (5112) and the second upper cross bar (5113) are fixedly connected to form a "Z" shape, and the second vertical support bar (5114) is arranged perpendicular to the working platform (1) and has two ends respectively fixedly connected to the second lower cross bar (5111) and the second upper cross bar (5113).

9. The high-efficiency parallel large-scale 3D printer according to claim 3, characterized in that: A first processing space is formed in the first sliding frame (41), and a second processing space is formed in the second sliding frame (51). The second sliding frame (51) can enter the first processing space from a side opposite to the first sliding beam (42).

10. The high-efficiency parallel large-scale 3D printer according to claim 3, characterized in that: A first processing space is formed in the first sliding frame (41), and a second processing space is formed in the second sliding frame (51). The first sliding frame (41) can enter the second processing space from a side opposite to the second sliding beam (52).

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