A 3D printing device based on a planar motor

Abstract

The utility model relates to planar motor technical field provides a 3D printing device based on planar motor, including forming platform and printing spray head, the planar motor includes mover and stator, the mover is suspended in the stator top, the mover can be in parallel to the plane of stator surface translation along X axle and Y axle direction and rotates along Z axle direction, the mover upper surface bears the forming platform, the printing spray head is located the forming platform top and can move along Z axle direction. In this way, through the suspension cooperation of mover and stator, the traditional linear guide rail, synchronous belt and so on mechanical transmission parts are saved, the equipment volume reduces, eliminates the mechanical clearance and friction loss of traditional X / Y axle split type transmission mechanism, can promote the positioning accuracy of forming platform, can flexibly and accurately move forming platform in 3D printing process, is convenient for the printing of printing spray head, can improve printing precision and printing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of planar motor technology, and in particular relates to a 3D printing device based on a planar motor. Background Technology

[0002] Currently, 3D printing technology, as a rapidly developing advanced manufacturing technology in recent years, has been widely applied in various fields such as aerospace, automotive manufacturing, medical implants, architectural models, electronic devices, and cultural and creative industries. Compared with traditional subtractive manufacturing, 3D printing has advantages such as high design freedom, high material utilization, and the ability to rapidly prototyping complex structures. Existing 3D printers typically use separate linear motors or belt-driven mechanisms on the X and Y axes to drive the print head or forming platform. This mechanical transmission method suffers from problems such as friction loss, large inertia, and slow response speed, limiting the improvement of printing accuracy and speed. Moreover, in multi-head collaborative printing, the complexity of the motion mechanism results in low printing flexibility, which can easily lead to misalignment between different material layers, affecting the quality of the printed product.

[0003] To solve the above-mentioned technical problems, this utility model designs a 3D printing device based on a planar motor. Utility Model Content

[0004] This invention provides a 3D printing device based on a planar motor, which aims to solve the problems of low accuracy and low efficiency in 3D printing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a 3D printing device based on a planar motor, comprising a forming platform and a printing nozzle, wherein the planar motor comprises a mover and a stator, the mover is suspended above the stator, the mover is capable of translating along the X-axis and Y-axis and rotating along the Z-axis in a plane parallel to the surface of the stator, the upper surface of the mover supports the forming platform, and the printing nozzle is disposed above the forming platform and is capable of moving along the Z-axis.

[0006] Based on the above technical solution, the 3D printing device based on a planar motor also includes a material storage chamber, which is connected to the printing nozzle through a flexible feeding pipe.

[0007] Furthermore, the 3D printing device based on a planar motor also includes a guide rail extending along the Z-axis, and the printing nozzle is disposed on the guide rail so that the printing nozzle moves relative to the guide rail along the Z-axis towards or away from the forming platform.

[0008] Furthermore, the stator is provided with multiple position sensors, which are evenly distributed on the surface of the stator to detect the position and / or attitude of the mover.

[0009] Based on the above technical solution, there are multiple printing nozzles, which are distributed in a regular manner above the stator.

[0010] Furthermore, there are multiple moving parts that support the forming platform, and these multiple moving parts are distributed in a regular manner above the stator.

[0011] Compared with related technologies, the beneficial effects of this utility model are as follows: This invention utilizes a moving part suspended above the stator to drive the forming platform. The moving part integrates three degrees of freedom of motion: X / Y-axis translation and Z-axis rotation. During 3D printing, the printing nozzle moves up and down along the Z-axis, while the moving part moves along the X and Y axes and rotates along the Z-axis, allowing the printing nozzle to print a preset shape on the forming platform. This suspension and coordination between the moving and stator eliminates traditional linear guides, timing belts, and other mechanical transmission components, reducing the equipment size. It also eliminates the mechanical backlash and frictional losses of traditional separate X / Y-axis transmission mechanisms, improving the positioning accuracy of the forming platform. This allows for flexible and precise movement of the forming platform during 3D printing, facilitating nozzle printing and improving printing accuracy and efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be derived from the provided drawings without creative effort.

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the 3D printing device based on a planar motor according to Embodiment 1 of this utility model; Figure 2 This is a side view of the 3D printing device based on a planar motor according to Embodiment 1 of this utility model; Figure 3 This is another side view of the 3D printing device based on a planar motor according to Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the structure of the 3D printing device based on a planar motor according to Embodiment 2 of this utility model; Figure 5 This is a schematic diagram of the structure of the 3D printing device based on a planar motor according to Embodiment 3 of this utility model.

[0014] In the diagram: 1. Forming platform; 2. Printing nozzle; 3. Material storage chamber; 4. Mover; 5. Stator; 6. Flexible feed tube; 7. Guide rail; 8. Position sensor. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and examples: The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] Example 1 Combination Figure 1-3 As shown, this disclosure provides a 3D printing device based on a planar motor, including a forming platform 1 and a printing nozzle 2. The planar motor includes a mover 4 and a stator 5. The mover 4 is suspended above the stator 5. The mover 4 can translate along the X-axis and Y-axis and rotate along the Z-axis in a plane parallel to the surface of the stator 5. The upper surface of the mover 4 supports the forming platform 1. The printing nozzle 2 is disposed above the forming platform 1 and can move along the Z-axis.

[0019] Specifically, the planar motor includes a mover 4 and a stator 5. The mover 4 includes multiple sets of magnet arrays, which are arranged in a specific pattern to form a permanent magnet array, which can generate a stable spatial magnetic field. The stator 5 is composed of multiple coil units, each of which can be independently supplied with current. When a specific coil unit of the stator 5 is supplied with current, an induced magnetic field is generated around it. This magnetic field interacts with the permanent magnet magnetic field of the mover 4 magnet array to generate an Ampere force. By adjusting the magnitude, direction, and on / off state of the current in each unit of the stator 5 coil array, the magnitude and direction of the force of the magnetic field interaction can be changed, thereby driving the mover 4 to move in the plane of the stator 5.

[0020] The 3D printing device based on a planar motor provided in this embodiment drives the forming platform 1 via a mover 4 suspended above the stator 5. The mover 4 integrates three degrees of freedom of motion: X / Y axis translation and Z-axis rotation. During the 3D printing process, the printing nozzle 2 moves up and down along the Z-axis, while the mover 4 moves along the X and Y axes and rotates along the Z-axis, allowing the printing nozzle 2 to print a preset shape on the forming platform 1. This suspension and coordination between the mover 4 and the stator 5 eliminates traditional linear guides, synchronous belts, and other mechanical transmission components, reducing the device size and eliminating the mechanical backlash and friction loss of traditional split X / Y axis transmission mechanisms. This improves the positioning accuracy of the forming platform 1, enabling flexible and precise movement of the forming platform 1 during 3D printing, facilitating the printing of the printing nozzle 2, and improving printing accuracy and efficiency.

[0021] Based on the above technical solution, the 3D printing device based on the planar motor also includes a material storage chamber 3, which is connected to the printing nozzle 2 through a flexible feeding pipe 6 to provide printing material to the printing nozzle 2.

[0022] In order to stabilize the relative position between the forming platform and the moving part, the forming platform 1 is provided with a connecting part, and the upper surface of the moving part 4 is provided with a connecting mating part. The connecting part and the connecting mating part cooperate to fix the forming platform on the moving part.

[0023] The connection between the forming platform 1 and the moving part 4 is ensured through the cooperation of the connecting part and the connecting mating part. During the movement of the moving part 4, the stability of the forming platform 1 is guaranteed, positioning errors are avoided, and positioning accuracy is guaranteed to ensure printing accuracy. Moreover, when it is necessary to change the forming platform 1, it is only necessary to remove the connecting part from the connecting mating part to achieve quick switching between different forming platforms 1, thereby improving the utilization rate of the device.

[0024] The connection between the connecting part and the connecting mating part can be achieved by inserting a positioning pin and a bushing, or by snapping a protrusion and a groove. As long as it can achieve a detachable connection between the moving part 4 and the forming platform 1, the specific implementation is not limited here.

[0025] Furthermore, such as Figure 1-3 As shown, the 3D printing device based on a planar motor also includes a guide rail 7, the material storage cavity 3 is fixed to the top of the guide rail 7, and the printing nozzle 2 is provided with a slider, which can slide relative to the guide rail so that the printing nozzle 2 moves closer to or away from the forming platform 1 relative to the guide rail 7 along the Z-axis direction.

[0026] Furthermore, the stator 5 is equipped with multiple position sensors 8, which are evenly distributed on the surface of the stator 5 to monitor the position of the mover in real time, facilitating the stator to control the movement path of the mover based on the mover position. Specifically, in order to accurately position the mover 4, the multiple position sensors 8 can detect the position and / or attitude of the mover 4 based on one or more physical principles. These principles include, but are not limited to, optics, capacitance, eddy current, inductance, magnetism, resistance, or a combination of two or more of these physical principles, to achieve high-precision closed-loop control of the mover 4.

[0027] Example 2 This disclosure provides a 3D printing device based on a planar motor, including a forming platform 1 and a printing nozzle 2. The planar motor includes a mover 4 and a stator 5. The mover 4 is suspended above the stator 5. The mover 4 can translate along the X-axis and Y-axis and rotate along the Z-axis in a plane parallel to the surface of the stator 5. The upper surface of the mover 4 supports the forming platform 1. The printing nozzle 2 is disposed above the forming platform 1 and can move along the Z-axis.

[0028] The 3D printing device based on a planar motor provided in this embodiment drives the forming platform 1 via a mover 4 suspended above the stator 5. The mover 4 integrates three degrees of freedom of motion: X / Y axis translation and Z-axis rotation. During the 3D printing process, the printing nozzle 2 moves up and down along the Z-axis, while the mover 4 moves along the X and Y axes and rotates along the Z-axis, allowing the printing nozzle 2 to print a preset shape on the forming platform 1. This suspension and coordination between the mover 4 and the stator 5 eliminates traditional linear guides, synchronous belts, and other mechanical transmission components, reducing the device size and eliminating the mechanical backlash and friction loss of traditional split X / Y axis transmission mechanisms. This improves the positioning accuracy of the forming platform 1, enabling flexible and precise movement of the forming platform 1 during 3D printing, facilitating the printing of the printing nozzle 2, and improving printing accuracy and efficiency.

[0029] Based on the above technical solutions, such as Figure 4 As shown, there are multiple printheads 2, which are distributed in a regular pattern above the stator 5.

[0030] Furthermore, the 3D printing device based on a planar motor also includes a material storage chamber 3, which is connected to the printing nozzle 2 via a flexible feeding pipe 6 to provide printing material to the printing nozzle 2.

[0031] Each print head 2 is connected to a corresponding independent material storage chamber 3 for printing different materials or colors. Multiple print heads 2 are printed in an assembly line. The mover 4 drives the forming platform 1 to move sequentially to the bottom of each print head 2 according to a certain motion path to print different materials or colors and complete the initially designed pattern and shape.

[0032] Example 3 This disclosure provides a 3D printing device based on a planar motor, including a forming platform 1 and a printing nozzle 2. The planar motor includes a mover 4 and a stator 5. The mover 4 is suspended above the stator 5. The mover 4 can translate along the X-axis and Y-axis and rotate along the Z-axis in a plane parallel to the surface of the stator 5. The upper surface of the mover 4 supports the forming platform 1. The printing nozzle 2 is disposed above the forming platform 1 and can move along the Z-axis.

[0033] The 3D printing device based on a planar motor provided in this embodiment drives the forming platform 1 via a mover 4 suspended above the stator 5. The mover 4 integrates three degrees of freedom of motion: X / Y axis translation and Z-axis rotation. During the 3D printing process, the printing nozzle 2 moves up and down along the Z-axis, while the mover 4 moves along the X and Y axes and rotates along the Z-axis, allowing the printing nozzle 2 to print a preset shape on the forming platform 1. This suspension and coordination between the mover 4 and the stator 5 eliminates traditional linear guides, synchronous belts, and other mechanical transmission components, reducing the device size and eliminating the mechanical backlash and friction loss of traditional split X / Y axis transmission mechanisms. This improves the positioning accuracy of the forming platform 1, enabling flexible and precise movement of the forming platform 1 during 3D printing, facilitating the printing of the printing nozzle 2, and improving printing accuracy and efficiency.

[0034] Furthermore, the 3D printing device based on a planar motor also includes a material storage chamber 3, which is connected to the printing nozzle 2 via a flexible feeding pipe 6 to provide printing material to the printing nozzle 2.

[0035] Based on the above technical solutions, such as Figure 5 As shown, there are multiple printing nozzles 2 and multiple material storage chambers 3, which are distributed in a regular pattern above the stator 5. There are also multiple moving parts 4 that support the forming platform 1, which are also distributed in a regular pattern above the stator 5.

[0036] The stator 5 drives at least one of the multiple movers 4 to move the forming platform 1 to the bottom of at least one of the multiple print heads 2 for printing. There are multiple cooperative working modes, and there are multiple operation correspondences between the forming platform and the print head, which can be one-to-one, one-to-many, many-to-one or many-to-many.

[0037] By arranging multiple printheads 2 and material storage chambers 3 in an array, along with a corresponding number of movers 4 and forming platforms 1, each group of material storage chambers 3, printheads 2, forming platforms 1, and movers 4 forms a printing unit. Each printing unit can work independently, enabling simultaneous printing of multiple models. Theoretically, the increase in production efficiency is proportional to the number of printing units. In this way, large-scale production is achieved while ensuring the printing accuracy of individual pieces. Furthermore, it ensures that the system can continue to operate even if a single unit fails, thus improving the overall utilization rate of the equipment.

[0038] Moreover, each printhead 2 can be connected to a storage chamber 3 containing different materials, and multi-material integrated molding can be achieved through the collaborative path planning of the mover 4, breaking through the limitations of traditional single printhead 2 equipment in terms of material composite.

[0039] The present invention has been described above by way of example, but the present invention is not limited to the specific embodiments described above. Any modifications or variations made based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A 3D printing device based on a planar motor, characterized in that, The device includes a molding platform (1) and a printing nozzle (2). The planar motor includes a mover (4) and a stator (5). The mover (4) is suspended above the stator (5). The mover (4) can translate along the X-axis and Y-axis and rotate along the Z-axis in a plane parallel to the surface of the stator (5). The upper surface of the mover (4) carries the molding platform (1). The printing nozzle (2) is located above the molding platform (1) and can move along the Z-axis.

2. The 3D printing device based on a planar motor according to claim 1, characterized in that, It also includes a material storage chamber (3), which is connected to the printing nozzle (2) via a flexible feeding pipe (6).

3. The 3D printing device based on a planar motor according to claim 1, characterized in that, It also includes a guide rail (7) that extends along the Z-axis direction, and the printing nozzle (2) is disposed on the guide rail (7) so that the printing nozzle (2) moves relative to the guide rail (7) along the Z-axis direction toward or away from the forming platform (1).

4. The 3D printing device based on a planar motor according to claim 1, characterized in that, The stator (5) is provided with multiple position sensors (8), which are evenly distributed on the surface of the stator (5) to detect the position and / or attitude of the mover (4).

5. The 3D printing device based on a planar motor according to claim 1, characterized in that, The number of the printing nozzles (2) is multiple, and the multiple printing nozzles (2) are distributed in a regular manner above the stator (5).

6. The 3D printing device based on a planar motor according to claim 5, characterized in that, The number of movers (4) supporting the forming platform (1) is multiple, and the multiple movers (4) are distributed in a regular manner above the stator (5).

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