Search

CN-121989444-A - Exposure control method and apparatus for photo-curing printing apparatus, and readable storage medium

CN121989444ACN 121989444 ACN121989444 ACN 121989444ACN-121989444-A

Abstract

The application provides an exposure control method and device of photo-curing printing equipment and a readable storage medium, and relates to the technical field of 3D printing. The photo-curing printing equipment comprises at least two light source devices, and the exposure control method comprises the step of controlling the at least two light source devices to move respectively so as to conduct regional exposure on a region to be cured. According to the application, each light source device is responsible for printing a part of the area to be solidified when exposure is carried out, so that the moving time of the light source device relative to the area to be solidified is shortened, and the printing speed is improved.

Inventors

  • Deng xinqiao
  • DENG KUNJUN

Assignees

  • 深圳市纵维立方科技有限公司

Dates

Publication Date
20260508
Application Date
20241108

Claims (10)

  1. 1. An exposure control method of a photo-curing printing apparatus, characterized in that the photo-curing printing apparatus includes at least two light source devices, the method comprising: And controlling at least two light source devices to move respectively so as to perform regional exposure on the region to be cured.
  2. 2. The method of claim 1, wherein at least two of the light source devices comprise at least one first light source device and at least one second light source device; The controlling at least two light source devices to move respectively to perform regional exposure on the region to be cured comprises the following steps: and controlling the first light source device and the second light source device to perform opposite scanning movement towards the target position of the to-be-cured area on two sides of the to-be-cured area respectively, and in the scanning movement process, the first light source device emits light to irradiate the first target area of the to-be-cured area, and the second light source device emits light to irradiate the second target area of the to-be-cured area.
  3. 3. The method of claim 2, wherein the step of determining the position of the substrate comprises, The target position comprises a middle position of the area to be solidified or a position which is a first preset distance away from the middle position; The method further comprises the steps of: The first light source device returns after scanning and moving to the target position, and the second light source device returns after scanning and moving to the target position, or The first light source device returns after scanning and moving to the target position, the second light source device returns after scanning and moving to the target position, and continues to forward scan and move for a second preset distance, or The second light source device returns after moving to the target position in a scanning way, and the first light source device returns after moving to the target position in a scanning way and continuing to move forward for a third preset distance in a scanning way.
  4. 4. The method of claim 3, wherein the step of, The moving speed of the first light source device is the same as or different from the moving speed of the second light source device; when the moving speed of the first light source device is the same as the moving speed of the second light source device, the target position is a position which is a first preset distance away from the middle position, If the target position is between the initial position and the middle position of the first light source device, the first light source device returns after moving to the target position in a scanning way, and returns after moving to the target position in a scanning way after continuing to move forward for a third preset distance; and if the target position is between the initial position and the middle position of the second light source device, the second light source device returns after continuously moving forward for a second preset distance after moving to the target position in a scanning way, and the first light source device returns after moving to the target position in a scanning way.
  5. 5. The method of claim 3, wherein the step of, The second preset distance and/or the third preset distance is the width of the light source device with preset multiple; The preset multiple is 0.2 to 2 times.
  6. 6. The method of claim 3, wherein the step of, The first light source device emits light with the total required exposure energy of the first target area during the scanning movement towards the target position, and the second light source device emits light with the total required exposure energy of the second target area during the scanning movement towards the target position; The method further comprises the steps of: the first light source device does not emit light when the first light source device returns, and the second light source device does not emit light when the second light source device returns, or, The first light source device emits light at (total required exposure energy/2) of the first target area during the scanning movement toward the target position, and the second light source device emits light at (total required exposure energy/2) of the second target area during the scanning movement toward the target position; The method further comprises the steps of: the first light source device irradiates the first target area with (total required exposure energy/2) light emission upon return of the first light source device, and the second light source device irradiates the second target area with (total required exposure energy/2) light emission upon return of the second light source device.
  7. 7. The method according to claim 1, wherein the method further comprises: Calculating a first time length according to the length of the area to be solidified and the moving speed of the light source device, wherein the first time length is the time length required by scanning and moving the area to be solidified by one light source device; If the first time length is greater than or equal to a preset threshold value, controlling at least two light source devices to conduct regional exposure on the region to be solidified; and if the first time length is smaller than a preset threshold value, controlling one of at least two light source devices to expose the area to be solidified.
  8. 8. The method of claim 1, wherein the step of determining the position of the substrate comprises, The light source device comprises at least one light emitting row; Wherein, when the light source device comprises at least two light emitting rows, at least one pair of corresponding light emitting units which are arranged in an offset manner exist in the moving direction of the light source device in different light emitting rows.
  9. 9. A photo-curing printing apparatus, comprising: At least two light source devices; A memory storing a program or instructions; A processor that implements the steps of the exposure control method of the photo-curing printing apparatus according to any one of claims 1 to 8 when executing the program or instructions.
  10. 10. A readable storage medium having stored thereon a program or instructions, which when executed by a processor, implement the steps of the exposure control method of a photo-curing printing device according to any one of claims 1 to 8.

Description

Exposure control method and apparatus for photo-curing printing apparatus, and readable storage medium Technical Field The present application relates to the field of 3D printing technology, and in particular, to an exposure control method for a photo-curing printing apparatus, and a readable storage medium. Background At the beginning of the photo-curing 3D printing, the printing platform is lowered slightly so that its surface is in contact with the liquid resin in the resin tank. The light source device (such as a UV lamp or a DLP projector) emits light according to a printing path generated by slicing software, selectively irradiates a specific region of the resin, and the irradiated resin is rapidly cured to form a layer of cured three-dimensional structure on the printing platform. After curing of one layer is completed, the printing platform continues to descend by one layer thickness distance and contacts with new liquid resin. Subsequently, the light source irradiates again to cure the next resin layer. This process is repeated until the entire three-dimensional model is printed. In the photo-curing 3D printing technology, speed is a critical factor, which directly affects production efficiency, cost, and accuracy and quality of the model. Disclosure of Invention In view of this, the present application provides an exposure control method of a photo-curing printing apparatus, and a readable storage medium, which shorten the moving time of a light source device with respect to an area to be cured, and improve the printing speed. In a first aspect, an embodiment of the present application provides an exposure control method of a photo-curing printing apparatus, the photo-curing printing apparatus including at least two light source devices, the method including: And controlling at least two light source devices to move respectively so as to perform regional exposure on the region to be cured. In a second aspect, embodiments of the present application provide a photo-curing printing device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, performs the steps of the method as in the first aspect. In a third aspect, embodiments of the present application provide a readable storage medium having stored thereon a program or instructions which when executed by a processor perform the steps of the method as in the first aspect. In the embodiment of the application, the photo-curing printing apparatus comprises at least two light source devices which can be respectively moved, compared with the prior art that the exposure of all the areas to be cured is carried out by one light source device, according to the application, each light source device is responsible for printing a part of the area to be solidified when exposure is carried out, so that the moving time of the light source device corresponding to the area to be solidified is reduced, and the printing speed is increased. The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent. Drawings The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings: Fig. 1 is a flow chart schematically showing an exposure control method of a photo-curing printing apparatus according to an embodiment of the present application; FIG. 2 shows a schematic view of a light source device according to an embodiment of the present application including two light source devices; FIG. 3 shows a schematic view of a light source device according to an embodiment of the present application including four light source devices; FIG. 4 shows one of the exposure schematics of the light source device according to the embodiment of the present application; FIG. 5 shows a second exposure schematic diagram of a light source device according to an embodiment of the application; FIG. 6 shows a schematic view of a light source device according to an embodiment of the present application comprising two light emitting rows; Fig. 7 shows a block diagram of the structure of a photo-curing printing apparatus according to an embodiment of the present application. Detailed Description The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, bu