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CN-121340631-B - 3D printing equipment and printing method for magnetic control microsphere space lattice

CN121340631BCN 121340631 BCN121340631 BCN 121340631BCN-121340631-B

Abstract

The invention discloses 3D printing equipment and a printing method of a magnetic control microsphere space lattice, and relates to the technical field of printing and forming, wherein the equipment comprises a printing station, a driving mechanism, a sintering mechanism, a control mechanism and at least one grabbing head; the printing station is used for stacking a plurality of loose magnetic microspheres as a supporting medium, the grabbing heads are used for grabbing the formed magnetic microspheres one by one and can be released to a preset space position above the supporting medium of the printing station, the driving mechanism is connected with the grabbing heads and used for driving the grabbing heads to move in space, the sintering mechanism is used for carrying out sintering connection on adjacent formed magnetic microspheres on the printing station, and the control mechanism is in communication connection with the grabbing heads, the driving mechanism and the sintering mechanism and can respectively control actions of the grabbing heads, the driving mechanism and the sintering mechanism. According to the 3D printing equipment and the printing method for the space lattice of the magnetic control microsphere, which are provided by the invention, the printing efficiency, the material utilization rate and the performance of the formed part are improved.

Inventors

  • YUE YU
  • CHEN TIANHE

Assignees

  • 百姓智造科技发展(成都)有限公司

Dates

Publication Date
20260508
Application Date
20251104

Claims (7)

  1. 1. The 3D printing equipment of the magnetic control microsphere space lattice is characterized by comprising the following components: a printing station (1), wherein the printing station (1) is used for stacking a plurality of loose magnetic microspheres as a supporting medium; the number of the grabbing heads (2) is multiple, and the grabbing heads (2) are respectively arranged on the periphery side and the upper side of the printing station (1); The driving mechanism (3) is connected with each grabbing head (2) and can drive each grabbing head (2) to move in space; A sintering mechanism (4) for sintering and connecting the adjacent formed magnetic microspheres on the printing station (1), and The control mechanism (5) is in communication connection with the grabbing head (2), the driving mechanism (3) and the sintering mechanism (4) and can respectively control the actions of the grabbing head (2), the driving mechanism (3) and the sintering mechanism (4); the feeding mechanism (6) is used for conveying the magnetic microspheres to the grabbing head (2); The grabbing head (2) can grab a plurality of magnetic microspheres conveyed by the feeding mechanism (6) to be used as loose magnetic microspheres and release the loose magnetic microspheres onto the printing station (1) to form the supporting medium, and the grabbing head (2) can grab a plurality of magnetic microspheres conveyed by the feeding mechanism (6) to be used as formed magnetic microspheres and release the formed magnetic microspheres to a preset space position supported by the supporting medium; Each grabbing head (2) is arranged as an electromagnetic printing head, the electromagnetic printing heads can generate a magnetic field under the electric control of the control mechanism (5) so that a preset magnetic field is formed above the printing station (1), a plurality of preset space positions are distributed on the preset magnetic field, and the electromagnetic printing heads can also drive the formed magnetic microspheres to be sprayed to the preset space positions on the preset magnetic field.
  2. 2. The 3D printing device of the magnetic control microsphere space lattice according to claim 1, wherein each grabbing head (2) is provided with a detection component which is in communication connection with the control mechanism (5), and the detection component is used for detecting grabbing states of the grabbing heads (2) and can send the grabbing states to the control mechanism (5).
  3. 3. The 3D printing device of the magnetic control microsphere space lattice according to claim 1, wherein the driving mechanism (3) is provided with a plurality of groups of linear driving modules (31), the groups of linear driving modules (31) are respectively connected with the plurality of grabbing heads (2), and each linear driving module (31) can drive in a single direction or in a three-dimensional orthogonal direction so that the plurality of grabbing heads (2) can relatively move in a three-dimensional space.
  4. 4. The 3D printing apparatus of a space lattice of magnetically controlled microspheres according to claim 1, characterized in that the sintering mechanism (4) is arranged as a laser sintering system for emitting laser light and being able to adjust the angle of the laser light to be able to irradiate the shaped magnetic microspheres.
  5. 5. The 3D printing device of the magnetic control microsphere space lattice according to claim 1, wherein the feeding mechanism (6) comprises a vibration feeding disc (61) and a feeding pipe (62), and the vibration feeding disc (61) is used for conveying the magnetic microspheres to the grabbing head (2) one by one through the feeding pipe (62).
  6. 6. A3D printing method of a magnetic control microsphere space lattice is characterized in that the 3D printing device based on the magnetic control microsphere space lattice according to any one of claims 1-5 comprises the following steps: Under the control of a control mechanism (5), the grabbing head (2) is driven to move in space according to a preset track through the driving mechanism (3), so that the grabbing head (2) can grab the formed magnetic microspheres and release the formed magnetic microspheres to preset space positions on a plurality of loose magnetic microspheres stacked at the printing station (1), and the sintering mechanism (4) performs sintering connection on the adjacent formed magnetic microspheres at the printing station (1) until the three-dimensional space lattice structure required by forming is formed.
  7. 7. The 3D printing method of the magnetic control microsphere space lattice according to claim 6, wherein the grabbing head (2) can grab a plurality of magnetic microspheres conveyed by a feeding mechanism (6) and release the magnetic microspheres serving as loose magnetic microspheres onto the printing station (1) to form a supporting medium, and the grabbing head (2) can grab a plurality of magnetic microspheres conveyed by the feeding mechanism (6) and release the magnetic microspheres serving as molded magnetic microspheres onto the supporting medium to the preset space position supported by the supporting medium; the control mechanism (5) is preset with a three-dimensional space lattice model formed by voxelizing a needed microsphere space lattice, each voxel point coordinate corresponds to the preset space position of one formed magnetic microsphere, and the control mechanism (5) can plan the preset track of the grabbing head (2) in space based on the three-dimensional space lattice model.

Description

3D printing equipment and printing method for magnetic control microsphere space lattice Technical Field The invention relates to the technical field of printing and forming, in particular to a 3D printing device and a printing method for a space lattice of magnetic control microspheres. Background In the existing 3D printing technology, fused Deposition Modeling (FDM) is required to be formed by stacking thermoplastic wires layer by layer, a supporting structure is required to be generated when a complex suspension structure is printed, the proportion of supporting materials can reach 20% -50%, material waste is caused, additional post-treatment procedures are required, manufacturing efficiency is reduced by 30% -50%, light curing modeling (SLA) precision is high, but the material curing shrinkage rate is large (usually 3% -8%), large-size part manufacturing is difficult to achieve, powder bed fusion modeling (SLM) equipment cost is high, molding speed is low, and powder recycling difficulty is high. Traditional 3D printing is based on a mode of 'layer-by-layer manufacturing', and the interlayer bonding force is weak (for example, the intensity between FDM layers is only 50% -70% of the intensity in layers), so that the mechanical property anisotropy of a formed part is obvious, and the application of the formed part in the field of high-load structural parts is limited. Disclosure of Invention The invention aims to provide 3D printing equipment and a printing method for a magnetic control microsphere space lattice, so as to solve the problems in the prior art and improve printing efficiency, material utilization rate and molding part performance. In order to achieve the above object, the present invention provides the following solutions: The invention provides 3D printing equipment of a magnetic control microsphere space lattice, which comprises a printing station, a driving mechanism, a sintering mechanism, a control mechanism and at least one grabbing head, wherein the printing station is used for piling a plurality of loose magnetic microspheres as supporting mediums, the grabbing heads are used for grabbing formed magnetic microspheres one by one and can be released to preset space positions above the supporting mediums of the printing station, the driving mechanism is connected with the grabbing heads and used for driving the grabbing heads to move in space, the sintering mechanism is used for carrying out sintering connection on adjacent formed magnetic microspheres on the printing station, and the control mechanism is in communication connection with the grabbing heads, the driving mechanism and the sintering mechanism and can respectively control actions of the grabbing heads, the driving mechanism and the sintering mechanism. Preferably, the number of the grabbing heads is multiple, the grabbing heads are respectively arranged on the periphery side and the upper side of the printing station, and the driving mechanism is connected with each grabbing head and can drive each grabbing head to move in space. Preferably, the grabbing heads are all arranged as electromagnetic printing heads, the electromagnetic printing heads can generate a magnetic field or remove the magnetic field under the electric control of the control mechanism so as to form a preset magnetic field above the printing station, a plurality of preset space positions are distributed on the preset magnetic field, and the electromagnetic printing heads can also drive the formed magnetic microspheres to be ejected to the preset space positions on the preset magnetic field. Preferably, the grabbing heads are provided with detection components which are in communication connection with the control mechanism, and the detection components are used for detecting grabbing states of the grabbing heads and can be sent to the control mechanism. Preferably, the driving mechanism is provided with a plurality of groups of linear driving modules, the plurality of groups of linear driving modules are respectively connected with the plurality of gripping heads, and each linear driving module can drive in a single direction or in a three-dimensional orthogonal direction so that the plurality of gripping heads can relatively move in a three-dimensional space. Preferably, the sintering mechanism is provided as a laser sintering system for emitting laser light and capable of adjusting the laser angle so as to be capable of irradiating the molded magnetic microsphere. Preferably, the magnetic microsphere gripping device further comprises a feeding mechanism, wherein the feeding mechanism is used for conveying the magnetic microsphere to the gripping head. Preferably, the feeding mechanism comprises a vibration feeding disc and a feeding pipe, wherein the vibration feeding disc is used for conveying the magnetic microspheres to the grabbing heads one by one through the feeding pipe. The invention also provides a 3D printing method of the magnetic control m