阅读说明：本技术 一种光固化成形控制装置及方法 (A kind of optical soliton interaction control device and method ) 是由 俞红祥 应华 王康恒 于 2019-08-05 设计创作，主要内容包括：本发明涉及一种光固化成形控制装置及方法,装置包括液槽,液槽底部为柔性透明薄膜,所述液槽固定在刚性框架顶部,所述线性致动器固定在刚性框架内部,所述刚性平板成像元件与线性致动器连接,且刚性平板成像元件位于液槽中心正下方,所述长行程直线模组竖直固定在刚性框架顶部,所述成形平台与长行程直线模组的工作台连接,并与刚性平板成像元件保持平行和中心对齐,所述气密封罩将液槽开口、长行程直线模组以及成形平台密闭,所述气密封罩上有调压阀,所述调压阀与压缩气源连接。本发明的方案经济合理、结构简单、单层固化物剥离迅速、操作与维护便捷,易于在大幅面、高效率光固化三维成形设备中推广应用。(The present invention relates to a kind of optical soliton interaction control device and methods, device includes liquid bath, liquid bath bottom is flexible transparent film, the liquid bath is fixed at the top of rigid frame, the linear actuators is fixed on inside rigid frame, the stiffener plate image-forming component is connect with linear actuators, and stiffener plate image-forming component is located at immediately below liquid bath center, the long stroke straight line mould group is fixed on vertically at the top of rigid frame, the forming platform is connect with the workbench of long stroke straight line mould group, and it is aligned with stiffener plate image-forming component keeping parallelism and center, liquid bath is open by the airtight sealing cover, long stroke straight line mould group and forming platform are closed, there is pressure regulator valve on the airtight sealing cover, the pressure regulator valve is connect with compressed gas source.The solution of the present invention economical rationality, structure is simple, the removing of monolayer immobilization object is rapid, operation and maintenance are convenient, is easy to promote and apply in large format, high efficiency photocuring three-dimensional equipment.)

1. a kind of optical soliton interaction control device, including rigid frame (1), it is characterized in that:

Liquid bath (2) are equipped at the top of rigid frame (1), photosensitive liquid macroimolecule material (11), liquid bath (2) bottom are equipped in liquid bath (2) Portion is flexible transparent film (3), is equipped with long stroke straight line mould group (4) fixed vertically, long stroke straight line at the top of rigid frame (1) Mould group (4) is equipped with to be cooperated forming platform moving up and down (5) with it, is attached with cured object below forming platform (5) (12)；

Liquid bath (2), long stroke straight line mould group (4), forming platform (5) are externally provided with airtight sealing cover (6), and airtight sealing cover (6) is equipped with Regulating valve (7), regulating valve (7) are connect with compressed gas source (8), and regulating valve (7) can be used for adjusting airtight sealing cover (6) interior airtight environment The pressure difference of opposite outer atmospheric environment may make flexible transparent film (3) to expand downwards when pressure difference is positive value；

Linear actuators (9) are equipped in rigid frame (1), linear actuators (9) is connect with stiffener plate image-forming component (10), line Property actuator (9), which can drive stiffener plate image-forming component (10) to move upwards, makes it be adjacent to flexible transparent film (3) to prop up it Support, linear actuators (9) can drive stiffener plate image-forming component (10) move downward make stiffener plate image-forming component (10) with it is soft Property transparent membrane (3) separate to release supporting role.

2. optical soliton interaction control device according to claim 1, it is characterized in that: there is photocuring controller (20) point It is not connect with long stroke straight line mould group (4), regulating valve (7), linear actuators (9), stiffener plate image-forming component (10), with control Long stroke straight line mould group (4) drives forming platform (5) and the cured object (12) adhered to below to carry out vertically oriented movement, The environmental pressure in the airtight sealing cover (6) of valve (7) adjusting is controlled to adjust, control linear actuators (9) drives stiffener plate at pixel Part (10) is moved upward to Support Position or is moved downward to removing position, controls stiffener plate image-forming component (10) for optical picture Case projects flexible transparent film (3).

3. optical soliton interaction control device according to claim 1 or 2, it is characterized in that: the linear actuators (9) drives Flat panel imaging element (10) transverse translation is moved up and down with substituting, when moving laterally in photocuring region to support liquid bath (2) The flexible transparent film (3) of bottom, when laterally moved out photocuring region is to release to photocuring regional flexibility transparent membrane (3) Support.

4. a kind of optical soliton interaction control method using 2 described device of claims 1 or 2, comprising the following steps:

1) it is normal pressure that pressure regulator valve (7), which adjusts the air pressure of the interior airtight environment of airtight sealing cover (6), and linear actuators (9) driving rigidity is flat Plate image-forming component (10) is moved upward to Support Position, makes the flexible transparent film of stiffener plate image-forming component (10) contact site (3) in tensioning flat condition, long stroke straight line mould group (4) driving forming platform (5) moves down and positions cured object (12) vertical position, making the crack (13) between cured object (12) and flexible transparent film (3) is single layer photocuring thickness, Stiffener plate image-forming component (10) projects optical design on the flexible transparent film (3) of top, and optical design penetrates flexibility After transparent membrane (3), the photosensitive liquid macroimolecule material (11) into crack (13), excitation optical design bright areas hair are acted on Third contact of a total solar or lunar eclipse curing reaction, stiffener plate image-forming component (10) maintains closing optical design after the time for exposure to project, in crack (13) Photosensitive liquid macroimolecule material (11) generates monolayer immobilization object (14) corresponding with optical design bright areas；

2) when removing first layer monolayer immobilization object (14) from flexible transparent film (3), linear actuators (9) driving rigidity is flat Plate image-forming component (10) is moved downward to removing position, releases stiffener plate image-forming component (10) to flexible transparent film (3) Supporting role, the draught head that pressure regulator valve (7) adjusts the airtight interior airtight environment opposite outer environment of sealing cover (6) is positive value, and single layer is solid The flexible transparent film (3) of compound (14) peripheral region dilatancy downwards under pressure difference effect, with monolayer immobilization object (14) flexible transparent film (3) bonded is removed since monolayer immobilization object (14) outer edge zone, photosensitive in stripping process Liquid macroimolecule material (11) constantly fills stripping area, and is filled into the photosensitive liquid macroimolecule material of stripping area (11) pressure is further conducted to the unstripped boundary line (15) at bonded areas center, continues removing into bonded areas The heart promotes, until flexible transparent film (3) are completely exfoliated from monolayer immobilization object (14) lower surface, then pressure regulator valve (7) adjusts gas The interior airtight environment of seal closure (6) replys normal pressure, this layer of Light Curing is completed；

3) before carrying out the second layer and succeeding layer photocuring, control long stroke straight line mould group (4) drives forming platform (5) Xiang Shangyi Dynamic single layer photocuring thickness, control linear actuators (9) driving stiffener plate image-forming component (10) are backed up to flexible and transparent The Support Position of film (3), at this point, forming platform (5) below adhere to first layer monolayer immobilization object (14), lower surface and just The flexible transparent film (3) of mild-natured plate image-forming component (10) support zone, photosensitive liquid macroimolecule material (11) between the two is again Secondary to be restored to single layer photocuring thickness, the aforementioned single layer photocuring of repetition, monolayer immobilization object are removed from flexible transparent film (3), And the preparatory process before succeeding layer photocuring is formed by the attachment of Complete three-dimensional body until completing whole layer photocurings In forming platform (5) lower surface.

Technical field

The present invention relates to 3 D-printing field, especially a kind of optical soliton interaction control device and method.

Background technique

Photocuring three-dimensional technology uses specific wavelength light, is cured instead by regioselectivity excitation photosensitive resin It answers, obtains single layer patterning solidfied material, and pass through ply adhesion effect when continuously successively solidifying and solidify, realize from single layer Accumulation of the solidfied material to Complex Three-Dimensional Body is patterned, this method is with forming speed is fast, surface quality is good, forming device structure Simple advantage has developed into one of three-dimensional material increasing field mainstream manufacturing process.Increase material device type in existing photocuring In, optical design is projected the clear bottom of photosensitive resin liquid bath by lower liquid level optical soliton interaction equipment, then by optical design The monolayer immobilization object excited is removed from liquid bath clear bottom, and is continued next layer and solidified until completing the solidification of whole layers Forming.As long as the photosensitive resin in liquid bath does not exhaust, lower liquid level photocuring mode can be constantly in the clear bottom of photosensitive resin liquid bath On obtain monolayer immobilization object, therefore the outstanding advantage with formation of parts height not submerged soil and liquid level depth limit, and liquid bath Interior liquid fluctuation does not also influence the flatness of generated monolayer immobilization object in clear bottom, and three-dimensional precision is high, is that current light is solid Change one of the Main Morphology of equipment.

Since complete photocuring three-dimensional body is monolayer immobilization object made of continuous multiple monolayer immobilization objects successively bond Thickness and planarization directly determine photocuring three-dimensional precision, this makes between liquid bath clear bottom and upper one layer of solidfied material, One layer of maintenance is smooth and the accurate photosensitive resin of thickness is particularly important.On the other hand, by monolayer immobilization object from liquid bath clear bottom Reliable removing, and do not destroy monolayer immobilization object itself and its bond strength with upper one layer of solidfied material, then it is next to be to continue with progress The necessary condition of layer optical soliton interaction.For above-mentioned two concern, existing lower liquid level photocuring three-dimensional equipment, generally with rigid The mode of mild-natured glass sheet support flexible transparent film constructs resin liquid bath clear bottom.When photosensitive resin thickness need to be controlled, line Shape mould group drives cured object to liquid bath bottom squeeze photosensitive resin until reaching target thickness, and Excess resin is discharged to liquid bath Other volumes are pushed in cured object under the effect of stiffener plate glass support, and flexible transparent film is kept with resin liquid layer Formation state；When that need to remove monolayer immobilization object from liquid bath clear bottom, linear mould group drives up cured object, cured object to Flexible deformation occurs for upper pulling flexible transparent film, flexible and transparent removing, and the tension that flexible deformation generates is big in tangential or normal direction When monolayer immobilization object and flexible transparent film adhesion strength, monolayer immobilization object is separated with flexible transparent film.Since single layer is solid It is face and face bond state between compound and flexible transparent film, stripping process depends on the elasticity of flexible transparent film by a relatively large margin Deformation, to generate enough tension.Application No. is 2019105022175 patent document, to describe a kind of local support flexible thoroughly Bright bottom, linear scan solidify, the optical soliton interaction method of linear removing, and the range of curing reaction and removing interface are contracted from flood As low as scan line, hence it is evident that reduce peeling force, but removing still relies on flexible and transparent bottom tension.Also there are other documents to disclose to be reported in The method injected excessive photosensitive resin in liquid bath, and movable plane support is combined to realize Stereolithography control, by solid Change reaction and move back open plane support, flexible transparent film is pushed to realize removing with the self weight of excessive photosensitive resin, but will be excessive Photosensitive resin injection liquid bath be unfavorable for equipment operation maintenance, and can substantially extend before photosensitive resin use residence time, cause Quality deterioration.Currently, in photocuring three-dimensional field, for the further demand for promoting photocuring three-dimensional speed, also Lack that a kind of structure is simple, efficiency of movement is high, the convenient and fast optical soliton interaction control method of operation.

Summary of the invention

The shortcomings that the invention solves the above-mentioned prior arts, provides that a kind of structure is simple, efficiency of movement is high, operation is convenient and fast Optical soliton interaction control device and method.

The technical scheme adopted by the invention to solve the technical problem: this optical soliton interaction control device, including rigid frame Frame, liquid bath, stiffener plate image-forming component, linear actuators, long stroke straight line mould group, forming platform, airtight sealing cover, pressure regulator valve, Compressed gas source and photocuring controller.The liquid bath bottom is flexible transparent film, and the liquid bath is fixed at the top of rigid frame, The linear actuators is fixed on inside rigid frame；The stiffener plate image-forming component is connect with linear actuators, and rigidity Flat panel imaging element is located at immediately below liquid bath center, and the linear actuators can manipulate stiffener plate image-forming component and contact upwards simultaneously The flexible transparent film for supporting liquid bath bottom, can also manipulate the flexible and transparent that stiffener plate image-forming component is detached from downwards liquid bath bottom Film；The long stroke straight line mould group is fixed on vertically at the top of rigid frame, the forming platform and long stroke straight line mould group Workbench connection, and be aligned with stiffener plate image-forming component keeping parallelism and center；The airtight sealing cover by liquid bath be open, long row Journey straight line mould group and forming platform are closed；There is pressure regulator valve on the airtight sealing cover, the pressure regulator valve is connect with compressed gas source；Institute Photocuring controller is stated to be electrically connected with stiffener plate image-forming component, linear actuators, long stroke straight line mould group, pressure regulator valve.

This optical soliton interaction control method, comprising the following steps:

Airtight sealing cover is first opened before starting photocuring, photosensitive liquid macroimolecule material is injected into liquid bath, then closes gas Seal closure；Photocuring controller issues displacement signal to linear actuators, controls linear actuators driving stiffener plate into pixel Part moves upwards, until contact, the flexible transparent film for supporting and being tensioned liquid bath bottom；Photocuring controller issues displacement signal To long stroke straight line mould group, controls long stroke linear module drive forming platform and approach liquid bath bottom downwards, until forming platform The flexible transparent film of lower surface and stiffener plate image-forming component support zone, photosensitive liquid macroimolecule material between the two reach Single layer photocuring thickness；Photocuring controller issues pressure adjustment signal to pressure regulator valve, controls to adjust in the airtight sealing cover of valve regulation Atmosphere pressure be normal pressure；

When first layer solidfied material is removed from flexible transparent film, photocuring controller issues displacement signal and causes to linear Dynamic device, control linear actuators driving stiffener plate image-forming component move downward, until separated with flexible transparent film suitably away from From, such as 3 millimeters；Photocuring controller issues pressure adjustment signal to pressure regulator valve, controls to adjust in the airtight sealing cover of valve regulation Atmosphere pressure is greater than normal pressure, then the flexible transparent film around monolayer immobilization object, seal closure internal and external pressure difference of being bullied effect Dilatancy downwards, so that flexible transparent film is gradually separated with monolayer immobilization object adhesive segment from edge to central area； Photosensitive liquid macroimolecule material under pressure, fill to monolayer immobilization object and flexible transparent film Disengagement zone by automatic flowing Domain further fills to the photosensitive liquid macroimolecule material of separated region and continues to conduct to separate confinement line by pressure, with Separation process is pushed to continue to approach to monolayer immobilization object central area, until flexible transparent film is complete from monolayer immobilization object lower surface Fully stripped.

Before carrying out the second layer and succeeding layer photocuring, photocuring controller issues displacement signal to long stroke straight line mould Group, control long stroke linear module drive forming platform move up single layer photocuring thickness；Photocuring controller issues displacement Signal controls the branch that linear actuators driving stiffener plate image-forming component is backed up to flexible transparent film to linear actuators Support position；At this point, the first layer solidfied material adhered to below forming platform, lower surface and stiffener plate image-forming component support zone Flexible transparent film, photosensitive liquid macroimolecule material between the two is again restored to single layer photocuring thickness.Photocuring control Think highly of again aforementioned single layer photocuring, the standard before monolayer immobilization object is removed from flexible transparent film and succeeding layer photocuring Standby process is formed by Complete three-dimensional body and is attached to forming platform lower surface until completing whole layer photocurings.

The present invention is moved up using linear actuators driving stiffener plate image-forming component, passes through stiffener plate image-forming component The vertically oriented control of supporting role and long stroke straight line mould group to forming platform to flexible transparent film, it is ensured that entire In solidification process, the crack distance of forming platform or upper one layer of solidfied material lower surface and flexible transparent film upper surface with it is smooth Degree, and then obtain smooth and thickness accurately adjustable monolayer immobilization object.

The present invention is moved down using linear actuators driving stiffener plate image-forming component, to release stiffener plate into pixel Supporting role of the part to flexible transparent film, and then by differential pressure inside and outside pressure regulation valve regulation hermetic seal cover, in flexible transparent film The pressure difference of upper generation from the top down, the formed pressure of pressure difference pull flexible transparent film from up to down, keep it solid from single layer Compound edge is quickly removed to center, and peeling force size can flexibly be controlled by differential pressure size inside and outside pressure regulation valve regulation hermetic seal cover System, independent of the initial tension between flexible transparent film and liquid bath framework, flexible transparent film removing damage is small, uses the longevity Life length.

When monolayer immobilization object of the invention is removed from flexible transparent film, without moving back and forth shaping flat in vertical direction Platform, the cured object adhered to below forming platform and forming platform, to liquid macroimolecule material photosensitive in liquid bath without obviously stirring It is dynamic, it is not likely to produce bubble, and then cause the solidfied materials defects such as hole, vacuole；It is linear actuators quick action of the invention, solid Compound stripping process time-consuming is short, and photocuring three-dimensional is high-efficient.

Airtight sealing cover of the invention is completely isolated in airtight environment by the photosensitive liquid macroimolecule material in liquid bath, when adopting When with inertia compressed gas source, toxic, the pungent volatilization in photosensitive resin liquid material can be not only prevented, building ring is polluted Border pollutes photosensitive resin liquid material prevented also from substances such as oxygen, dust, steam, reduces curing performance.

Optical soliton interaction control device and method of the invention, scheme economical rationality, structure be simple, the removing of monolayer immobilization object Rapidly, operation and maintenance are convenient, are easy to promote and apply in large format, high efficiency photocuring three-dimensional equipment.

Detailed description of the invention

Fig. 1-1 is overall structure diagram of the invention；

Fig. 1-2 is schematic diagram of internal structure of the invention；

Fig. 1-3 is the schematic diagram of the section structure of the invention；

Fig. 2-1 is that monolayer immobilization makes the crack between cured object and flexible transparent film form single layer photocuring in the process The structural schematic diagram of thickness；

Fig. 2-2 is the structural schematic diagram of formation monolayer immobilization object during monolayer immobilization；

Fig. 2-3 is after monolayer immobilization releases stiffener plate image-forming component to the supporting role of flexible transparent film in the process Structural schematic diagram；

Fig. 3-1 is that differential pressure makes flexible transparent film inside and outside pressure regulation valve regulation hermetic seal cover in monolayer immobilization object stripping process The structural schematic diagram expanded downwards；

Fig. 3-2 is the structural schematic diagram after successfully removing in monolayer immobilization object stripping process；

Fig. 4 is control signal connection figure of the invention；

Description of symbols: rigid frame 1, liquid bath 2, flexible transparent film 3, long stroke straight line mould group 4, forming platform 5, Airtight sealing cover 6, pressure regulator valve 7, compressed gas source 8, linear actuators 9, rigid platfor image-forming component 10, photosensitive liquid macroimolecule material 11, cured object 12, crack 13, monolayer immobilization object 14, unstripped boundary line 15, photocuring controller 20.

Specific embodiment

The present invention will be further explained below with reference to the attached drawings: