A light curing device

Abstract

The invention discloses a photocuring device, comprising a stage placed in a light shield, a mold or a material tank placed on the stage, a light source 4 suspended above the mold or the material tank, a light source conversion module connected to the light source and capable of realizing conversion between multiple light sources of specific wavelengths, a light source lifting module, a light source translation module and a light source rotation module for realizing spatial position adjustment of the light source, a light intensity meter suspended above the mold or the material tank, a light intensity meter lifting module, a light intensity meter translation module and a light intensity meter rotation module for realizing spatial position adjustment of the light intensity meter, an electrical control system box for supplying power to the light source and the light intensity meter and realizing spatial position adjustment control signal analysis and transmission, and a cold air blower located outside the light shield for cooling the light source and outputting cold. The invention realizes the goal of efficient curing by converting multiple light sources and accurately controlling the height of the light sources in view of different light absorption characteristics and different curing depth requirements of different photocuring material systems.

Description

Technical Field

[0001] The invention belongs to the technical field of photocuring equipment, and in particular relates to a photocuring equipment. Background Art

[0002] Photocuring refers to the process of cross-linking and curing of monomers, oligomers or polymer matrices under light induction. Photocuring material systems are usually composed of monomers, oligomers and photoinitiators. Different photoinitiators have different light absorption characteristics, that is, different wavelength ranges of absorbed light, and different requirements for optimal light intensity. At the same time, under different curing depth requirements, the curing process also has different requirements for light intensity. It can be seen that for a variety of photocuring material systems and different curing depth requirements, light wavelength and light intensity are two key factors to ensure efficient curing.

[0003] Currently, most photocuring equipment only has a single light source, which either emits light in a wide band or can only emit light of a single specific wavelength. It is impossible to achieve efficient curing for photocurable material systems with different light absorption characteristics. At the same time, the light source of a single specific wavelength determines the penetration depth of the light, which cannot be adjusted for different curing depth requirements. In addition, the distance between the light source and the material tank containing the liquid photocurable material in most photocuring equipment is fixed, which means that the light intensity incident on the material is constant. It is also impossible to achieve efficient curing for different photocurable material systems and curing depth requirements.

[0004] In view of the above background, it is necessary to develop a photocuring device that can be used for a variety of photocurable material systems and can meet different curing depth requirements to achieve efficient curing. Summary of the invention

[0005] In order to overcome the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a photocuring device, which solves the technical problem that the current photocuring device cannot achieve efficient curing for a variety of photocuring material systems and different curing depth requirements due to a single light source and a fixed distance between the light source and the material trough through the conversion of multiple light sources of specific wavelengths and precise control of the distance between the light source and the mold or material trough, thereby improving the curing efficiency.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A light-curing device comprises a light shielding hood 1 with an openable front side panel, a stage 2 placed on the inner bottom plate of the light shielding hood 1, a mold or a material tank 3 placed on the stage 2, a light source 4 suspended above the mold or the material tank 3 and providing light of a specific wavelength required for curing a light-curing material, a light source conversion module 5 connected to the light source 4 and realizing conversion between multiple light sources of specific wavelengths, a light source lifting module 8, a light source translation module 10 and a light source rotation module 12 for realizing spatial position adjustment of the light source 4, a light intensity meter 7 suspended above the mold or the material tank 3 and measuring the light intensity at a preset position above the light-curing material, a light intensity meter lifting module 9, a light intensity meter translation module 11 and a light intensity meter rotation module 13 for realizing spatial position adjustment of the light intensity meter 7, an electrical system control box 14 for supplying power to the light source 4 and the light intensity meter 7 and realizing analysis and transmission of control signals for spatial position adjustment of the light source 4 and the light intensity meter 7, and a cooling fan 6 located outside the light shielding hood 1 and outputting cold energy for cooling the light source 4.

[0008] The light source 4 includes a light source tube 4-3, an air-cooling channel light source section 4-4 and a power line light source section 4-5 placed in the light source tube 4-3, and a bulb 4-1 is located in the light source tube 4-3 and connected to the power line light source section 4-5 through a power interface 4-2.

[0009] The light source conversion module 5 includes a rotating disk 5-1, in which a light source tube 4-3 is installed in a plurality of holes around the rotating disk 5-1 through interference fit, and the light source 4 protruding from the plane of the rotating disk 5-1 is installed. The rotating disk 5-1 can rotate around the bearing 5-2 at its center, and the rotating disk 5-1 is radially provided with slots between the holes around the rotating disk 5-1; a light source column 5-8 is fixed on the upper part of the rotating disk 5-1, and an air-cooling channel light source converter section 5-10 and a power supply line light source converter section 5-9 are arranged inside the light source column 5-8, and an inclined fixed disk 5-5 is fixed on the lower part of the light source column 5-8, and a positioning spring 5-6 is fixed on the inclined fixed disk 5-5. When different light sources need to be converted, the rotating disk 5-1 rotates around the bearing 5-2, and the positioning spring 5-6 is snapped into place. One of the slots on the rotating disk 5-1 positions the selected light source and ensures that the air-cooling channel light source segment 4-4 and the power line light source segment 4-5 inside the corresponding light source tube 4-3 are respectively connected to the air-cooling channel light source converter segment 5-10 and the power line light source converter segment 5-9 inside the light source column 5-8; and the other end of the air-cooling channel light source converter segment 5-10 is connected to the air cooler 6 through a cold air duct; one end of the spring 5-4 is fixed on the inclined fixed disk 5-5, and the other end is connected to the inner wall of the hollow central shaft 5-3 installed in the bearing 5-2 through an interference fit. The spring 5-4 ensures that the positioning spring 5-6 is in close contact with the slot on the rotating disk 5-1, and at the same time ensures that a small amount of extension and contraction can be performed in the axial direction during the light source conversion process.

[0010] The number of holes around the rotating disk 5-1 is six, and the number of light bulbs 4-1 is also six, including three light bulbs with light wavelengths of 365nm, 395nm and 405nm and three light bulbs with wavelengths customized by users.

[0011] The light source lifting module 8 comprises a lifting module mounting plate 8-1, a lifting module bearing 8-2 mounted on the lifting module mounting plate 8-1, a lifting module screw 8-6 mounted in the lifting module bearing 8-2, a lifting module guide shaft 8-7 mounted on the lifting module mounting plate 8-1 and located on both sides of the lifting module screw 8-6, a light source translation module mounting block 8-8 threadedly connected to the lifting module screw 8-6 and installed with clearance fit on the lifting module guide shaft 8-7, a lifting module motor frame 8-3 mounted on the lifting module screw 8-6 and located at the top of the lifting module screw (8-6), and a lifting module motor frame 8-3 placed in the lifting module motor frame 8-3 through lifting. The lifting module stepper motor 8-4 is connected to the lifting module lead screw 8-6 by the lowering module coupling 8-5, and is installed on the lifting module guide shaft 8-7 and is located at the upper and lower parts of the light source translation module mounting block 8-8 to limit the lifting and lowering stroke of the light source translation module mounting block 8-8; the lifting module stepper motor 8-4 drives the lifting module lead screw 8-6 to rotate through the lifting module coupling 8-5, drives the light source translation module mounting block 8-8 to move up and down, and finally realizes the movement of the light source 4 in the vertical direction; the light intensity meter lifting module 9 has the same structure and function as the light source lifting module 8, and realizes the movement of the light intensity meter 7 in the vertical direction.

[0012] The light source rotating module 12 comprises a rotating module mounting plate 12-1 and a base 12-4 respectively connected to the upper top plate and the lower bottom plate of the light shield 1 by screws, a rotating module bearing 12-2 installed in the center of the rotating module mounting plate 12-1 and the base 12-4, an upper connecting rod 12-3-1 and a lower connecting rod 12-3-2 respectively welded on the lifting module motor frame 8-3 and the lifting module mounting plate 8-1, one end of the upper connecting rod 12-3-1 and the lower connecting rod 12-3-2 are respectively installed in the two rotating module bearings 12-2, and a pulley 1 2-5 is interference fitly sleeved on the lower connecting rod 12-3-2, and the belt 12-6 is wound around the pulley 12-5 and the motor wheel 12-8 of the rotating module stepper motor 12-7; the rotating module stepper motor 12-7 drives the motor wheel 12-8 to rotate, and then drives the pulley 12-5 to rotate through the belt 12-6, thereby further realizing the rotation of the light source lifting module 8, and finally realizing the rotation of the light source 4 in the horizontal plane; the light intensity meter rotating module 13 has the same structure and function as the light source rotating module 12, thereby realizing the rotation of the light intensity meter 7 in the horizontal plane.

[0013] The light source translation module 10 is installed on the light source translation module mounting block 8-8, including a translation module mounting plate 10-1, a plurality of translation module guide shafts 10-5 installed on the translation module mounting plate 10-1, a translation module stepper motor 10-2 installed on the translation module mounting plate 10-1 and located between the plurality of translation module guide shafts 10-5, a translation module lead screw 10-4 connected to the translation module stepper motor 10-2 via a translation module coupling 10-3, an end of the translation module lead screw 10-4 is installed in a translation module bearing 10-7, a light source unit mounting block 10-6 which is threadedly connected to the translation module lead screw 10-4 and installed with clearance fit with the translation module guide shaft 10-5, one end of which is welded to the translation module The light source conversion module 5 is installed on the light source unit mounting block 10-6 through the light source column fixing ring 5-7; the translation module stepper motor 10-2 drives the translation module lead screw 10-4 to rotate through the translation module coupling 10-3, driving the light source unit mounting block 10-6 to translate along the translation module guide shaft 10-5, and finally realizing the movement of the light source 4 installed on the light source conversion module 5 along the translation module guide shaft 10-5 in the horizontal plane; the light intensity meter translation module 11 has the same structure and function as the light source translation module 10, and realizes the movement of the light intensity meter 7 along the axis in the horizontal plane.

[0014] The electrical system control box 14 includes a transmitter, a power converter, six groups of PLC controllers and a power controller, and the PLC controller and the power controller are powered by the power converter; the computer transmits the signal to the PLC controller, and the PLC controller transmits the translated signal to the power controller, and the power controller controls the rotation of the stepping motors of the light source lifting module 8, the light intensity meter lifting module 9, the light source translation module 10, the light intensity meter translation module 11, the light source rotation module 12 and the light intensity meter rotation module 13, thereby realizing the control of the light source lifting module 8, the light intensity meter lifting module 9, the light source translation module 10, the light intensity meter translation module 11, the light source rotation module 12 and the light intensity meter rotation module 13 by the computer;

[0015] In order to achieve real-time adjustment of the height of the light source, so that the real-time light intensity at the preset position above the photocurable material meets the target light intensity, a transmitter is added between the light intensity meter 7 and the PLC controller in the control of the light source lifting module 8. The transmitter converts the light intensity signal measured in real time by the light intensity meter 7 into a voltage signal and transmits it to the PLC controller. The PLC controller compares the signal input by the computer, namely the target light intensity, with the signal input by the transmitter, namely the real-time light intensity, and outputs the control signal to the power controller. The power controller controls the rotation of the stepper motor of the light source lifting module 8 to adjust the height of the light source until the real-time light intensity is the same as the target light intensity.

[0016] The power line light source converter section 5 - 9 is connected to the power converter in the electrical system control box 14 to realize power supply for the light source 4 .

[0017] The light intensity meter 7 is connected to a power converter in the electrical system control box 14 to realize power supply for the light intensity meter 7 .

[0018] Slide rails are installed on both sides of the loading platform 2. When the front side plate of the light shield 1 is opened, it can be pulled in the horizontal direction, so that the mold or material trough 3 moves with the loading platform 2, which is convenient for placing and taking.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. The present invention is easy to replace the light source, and a light source installation position is reserved, which is convenient for installing a light source with a specific wavelength other than the existing 365nm, 395nm and 405nm customized by the user according to different curing requirements;

[0021] 2. The present invention facilitates users to realize the conversion between multiple specific wavelength light sources according to the light absorption characteristics of different light-curing material systems, thereby providing the best wavelength of light for curing and achieving efficient curing;

[0022] 3. The present invention can realize real-time measurement of light intensity at a preset position above the photocurable material, and realize real-time adjustment of the light source height through closed-loop control, thereby providing optimal light intensity for different curing tasks and achieving efficient curing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an external view of the light curing device of the present invention;

[0024] Figure 2 The internal view of the light curing device of the present invention is shown with the light shield removed;

[0025] Figure 3 is a schematic diagram of a light source;

[0026] Figure 4 is a schematic diagram of a light source conversion module;

[0027] Figure 5 It is a partial structural diagram of the light source conversion module;

[0028] Figure 6 This is a schematic diagram of the light source lifting module;

[0029] Figure 7 This is a schematic diagram of a light source translation module;

[0030] Figure 8 This is a schematic diagram of the light source rotation module;

[0031] Fig. 9This is a schematic diagram of the hardware and signal transmission process required for the light source lifting module control part;

[0032] Fig.10 This is a schematic diagram of the hardware and signal transmission process required for the light intensity meter lifting module, light source translation module, light intensity meter translation module, light source rotation module and the control part of the light intensity meter rotation module. Implementation

[0033] The present invention is described in detail below with reference to the accompanying drawings and specific implementation examples.

[0034] like Figure 1 and Figure 2 As shown, a photocuring device of the present invention comprises a light shielding hood 1 with an openable front side plate, a stage 2 placed on the inner bottom plate of the light shielding hood 1, a mold or a material tank 3 suspended on the stage 2, a light source 4 fixed above the mold or the material tank 3 and providing light of a specific wavelength required for curing of a photocurable material, a light source conversion module 5 connected to the light source 4 and realizing conversion between multiple light sources of specific wavelengths, a light source lifting module 8, a light source translation module 10 and a light source rotation module 12 for realizing spatial position adjustment of the light source 4, a light intensity meter 7 suspended above the mold or the material tank 3 and measuring the light intensity at a preset position above the photocurable material, a light intensity meter lifting module 9, a light intensity meter translation module 11 and a light intensity meter rotation module 13 for realizing spatial position adjustment of the light intensity meter 7, an electrical system control box 14 for supplying power to the light source 4 and the light intensity meter 7 and realizing analysis and transmission of control signals for spatial position adjustment of the light source 4 and the light intensity meter 7, and a cooling fan 6 located outside the light shielding hood 1 and outputting cold energy for cooling the light source 4.

[0035] As a preferred embodiment of the present invention, slide rails are installed on both sides of the stage 2. When the front side plate of the light shield 1 is opened, it can be pulled in the horizontal direction, so that the mold or material trough 3 moves with the stage 2 for easy placement and retrieval.

[0036] like Figure 3 As shown, the light source 4 includes a light source tube 4-3, an air-cooling channel light source section 4-4 and a power line light source section 4-5 placed in the light source tube 4-3, and the bulb 4-1 is located in the light source tube 4-3 and connected to the power line light source section 4-5 through a power interface 4-2.

[0037] like Figure 4 and Figure 5As shown, the light source conversion module 5 includes a rotating disk 5-1, in which a light source tube 4-3 is installed in a plurality of holes around the rotating disk 5-1 through interference fit, and the light source 4 protruding from the plane of the rotating disk 5-1 is installed. The rotating disk 5-1 can rotate around the bearing 5-2 at its center, and the rotating disk 5-1 is radially provided with slots between the holes around the rotating disk 5-1; a light source column 5-8 is fixed on the upper part of the rotating disk 5-1, and an air-cooling channel light source converter section 5-10 and a power supply line light source converter section 5-9 are arranged inside the light source column 5-8, and an inclined fixed disk 5-5 is fixed on the lower part of the light source column 5-8, and a positioning spring 5-6 is fixed on the inclined fixed disk 5-5. When different light sources need to be converted, the rotating disk 5-1 rotates around the bearing 5-2, and the positioning spring 5-6 is locked. The spring 5-4 is inserted into one of the slots on the rotating disk 5-1 to position the selected light source, while ensuring that the air-cooling channel light source segment 4-4 and the power line light source segment 4-5 inside the corresponding light source tube 4-3 are respectively connected to the air-cooling channel light source converter segment 5-10 and the power line light source converter segment 5-9 inside the light source column 5-8; and the other end of the air-cooling channel light source converter segment 5-10 is connected to the air cooler 6 through a cold air duct; one end of the spring 5-4 is fixed on the inclined fixed disk 5-5, and the other end is connected to the inner wall of the hollow central shaft 5-3 installed in the bearing 5-2 through an interference fit. The spring 5-4 ensures that the positioning spring 5-6 is in close contact with the slot on the rotating disk 5-1, and at the same time ensures that a small amount of extension and contraction can be performed in the axial direction during the light source conversion process.

[0038] As a preferred embodiment of the present invention, the number of the holes around the rotating disk 5-1 is six, and the number of the bulbs 4-1 is also six, including three bulbs with light wavelengths of 365nm, 395nm and 405nm and three bulbs with wavelengths customized by the user.

[0039] like Figure 6As shown, the light source lifting module 8 includes a lifting module mounting plate 8-1, a lifting module bearing 8-2 mounted on the lifting module mounting plate 8-1, a lifting module screw 8-6 installed in the lifting module bearing 8-2, a lifting module guide shaft 8-7 installed on the lifting module mounting plate 8-1 and located on both sides of the lifting module screw 8-6, a light source translation module mounting block 8-8 threadedly connected to the lifting module screw 8-6 and installed with clearance fit on the lifting module guide shaft 8-7, a lifting module motor frame 8-3 installed on the lifting module screw 8-6 and located at the top of the lifting module screw 8-6, and placed in the lifting module motor frame 8-3 through The lifting module coupling 8-5 is connected to the lifting module stepper motor 8-4 of the lifting module lead screw 8-6, and is installed on the lifting module guide shaft 8-7 and is located at the upper and lower parts of the light source translation module mounting block 8-8 to limit the lifting and lowering stroke of the light source translation module mounting block 8-8; the lifting module stepper motor 8-4 drives the lifting module lead screw 8-6 to rotate through the lifting module coupling 8-5, drives the light source translation module mounting block 8-8 to move up and down, and finally realizes the movement of the light source 4 in the vertical direction; the light intensity meter lifting module 9 has the same structure and function as the light source lifting module 8, and realizes the movement of the light intensity meter 7 in the vertical direction. There are two lifting module guide shafts 8-7, the purpose of which is to prevent the light source translation module mounting block 8-8 from rotating with the lifting module lead screw 8-6 during the lifting process, further causing the light source to rotate with the lifting module lead screw 8-6 during the lifting process. The lifting module limiter 8-9 prevents the light source translation module mounting block 8-8 from interfering with the mounting plate 8-1 or the motor frame 8-3.

[0040] like Figure 7As shown, the light source translation module 10 is installed on the light source translation module mounting block 8-8, including a translation module mounting plate 10-1, a plurality of translation module guide shafts 10-5 installed on the translation module mounting plate 10-1, a translation module stepper motor 10-2 installed on the translation module mounting plate 10-1 and located between the plurality of translation module guide shafts 10-5, a translation module lead screw 10-4 connected to the translation module stepper motor 10-2 through a translation module coupling 10-3, an end of the translation module lead screw 10-4 is installed in a translation module bearing 10-7, a light source unit mounting block 10-6 which is threadedly connected to the translation module lead screw 10-4 and installed with clearance fit to the translation module guide shaft 10-5, and one end is welded to the translation module. The module guide shaft 10-5 has one end welded on the translation module mounting plate 10-1, and the other end is used to support the translation module support frame 10-8 of the translation module guide shaft 10-5; the light source conversion module 5 is installed on the light source unit mounting block 10-6 through the light source column fixing ring 5-7; the translation module stepper motor 10-2 drives the translation module lead screw 10-4 to rotate through the translation module coupling 10-3, driving the light source unit mounting block 10-6 to translate along the translation module guide shaft 10-5, and finally realizing the movement of the light source 4 installed on the light source conversion module 5 along the translation module guide shaft 10-5 in the horizontal plane; the light intensity meter translation module 11 has the same structure and function as the light source translation module 10, and realizes the movement of the light intensity meter 7 along the axis in the horizontal plane.

[0041] like Figure 8 As shown, the light source rotating module 12 includes a rotating module mounting plate 12-1 and a base 12-4 respectively connected to the upper top plate and the lower bottom plate of the light shield 1 by screws, a rotating module bearing 12-2 installed in the center of the rotating module mounting plate 12-1 and the base 12-4, an upper connecting rod 12-3-1 and a lower connecting rod 12-3-2 respectively welded on the lifting module motor frame 8-3 and the lifting module mounting plate 8-1, one end of the upper connecting rod 12-3-1 and the lower connecting rod 12-3-2 are respectively installed in the two rotating module bearings 12-2, and a belt The wheel 12-5 is sleeved on the lower connecting rod 12-3-2 with an interference fit, and the belt 12-6 is wound around the pulley 12-5 and the motor wheel 12-8 of the rotating module stepper motor 12-7; the rotating module stepper motor 12-7 drives the motor wheel 12-8 to rotate, and then drives the pulley 12-5 to rotate through the belt 12-6, further realizing the rotation of the light source lifting module 8, and finally realizing the rotation of the light source 4 in the horizontal plane; the light intensity meter rotating module 13 has the same structure and function as the light source rotating module 12, realizing the rotation of the light intensity meter 7 in the horizontal plane. The rotating module stepper motor 12-7 has a mounting seat.

[0042] like Fig. 9As shown, the electrical system control box 14 includes a transmitter, a power converter, six groups of PLC controllers and a power controller, and the PLC controller and the power controller are powered by the power converter; the computer transmits the signal to the PLC controller, and the PLC controller transmits the translated signal to the power controller, and the power controller controls the rotation of the stepping motors of the light source lifting module 8, the light intensity meter lifting module 9, the light source translation module 10, the light intensity meter translation module 11, the light source rotation module 12 and the light intensity meter rotation module 13, thereby realizing the control of the light source lifting module 8, the light intensity meter lifting module 9, the light source translation module 10, the light intensity meter translation module 11, the light source rotation module 12 and the light intensity meter rotation module 13 by the computer;

[0043] like Fig.10 As shown, in order to achieve real-time adjustment of the height of the light source, so that the real-time light intensity at the preset position above the photocurable material meets the target light intensity, in the control of the light source lifting module 8, a transmitter is added between the light intensity meter 7 and the PLC controller. The transmitter converts the light intensity signal measured in real time by the light intensity meter 7 into a voltage signal and transmits it to the PLC controller. The PLC controller compares the signal input by the computer, namely the target light intensity, with the signal input by the transmitter, namely the real-time light intensity, and outputs the control signal to the power controller. The power controller controls the rotation of the stepper motor of the light source lifting module 8 to adjust the height of the light source until the real-time light intensity is the same as the target light intensity.

[0044] As a preferred embodiment of the present invention, the power line light source converter segment 5 - 9 is connected to the power converter in the electrical system control box 14 to realize power supply for the light source 4 .

[0045] As a preferred embodiment of the present invention, the light intensity meter 7 is connected to a power converter in an electrical system control box 14 to realize power supply for the light intensity meter 7 .

[0046] When using the light curing device of the present invention, the following basic steps are followed:

[0047] 1. Before the solidification task

[0048] 1. Check whether the equipment is in normal condition before use;

[0049] 2. Place the mold or trough 3 on the stage 2;

[0050] 3. Convert light source:

[0051] (1) Determine the wavelength of the light source required to complete the curing task based on the light absorption characteristics of the light-curing material and the curing depth requirements;

[0052] (2) If the current light source wavelength just meets the task requirements, proceed directly to the next step; if the current light source wavelength does not meet the task requirements, convert it through the light source conversion module 5;

[0053] 4. Turn on the power switch of the light curing equipment;

[0054] 5. According to the specific position of the mold or trough 3, adjust the position of the light source 4 in the horizontal plane:

[0055] (1) Input the light source rotation angle into the computer, and the signal is transmitted to the rotation module stepper motor 12-7 through the PLC controller and power controller in the electrical system control box 14, so that the light source 4 can rotate in the horizontal plane through the light source rotation module 12;

[0056] (2) Input the light source translation value into the computer, and the signal is transmitted to the translation module stepper motor 10-2 through the PLC controller and the power controller, so that the light source 4 is translated along the translation module guide shaft 10-5 in the horizontal plane through the light source translation module 10;

[0057] 6. According to the specific position of the mold or trough 3, adjust the position of the light intensity meter 7:

[0058] (1) Input the height of the light intensity meter 7 into the computer, and the signal is transmitted to the lifting module stepping motor through the PLC controller and power controller in the electrical system control box 14, and the height adjustment of the light intensity meter 7 is realized through the light intensity meter lifting module 9;

[0059] (2) Input the rotation angle of the light intensity meter 7 into the computer, and the signal is transmitted to the rotation module stepper motor through the PLC controller and power controller in the electrical system control box 14, and the light intensity meter rotation module 13 realizes the rotation of the light intensity meter 7 in the horizontal plane;

[0060] (2) Input the translation value of the light intensity meter 7 into the computer, and the signal is transmitted to the translation module stepper motor through the PLC controller and power controller in the electrical system control box 14, and the light intensity meter translation module 11 realizes the translation of the light intensity meter 7 along the translation module guide axis in the horizontal plane;

[0061] 7. Turn on the air cooler 6 to output cooling capacity;

[0062] 8. Turn on the light intensity meter 7;

[0063] 9. Turn on light source 4;

[0064] 10. Adjust the light source height:

[0065] According to the specific curing depth requirements, the target light intensity is input into the computer, and the light intensity signal above the light-curing material collected by the light intensity meter 7 is transmitted to the PLC controller through the transmitter in the electrical system control box 14. The PLC controller transmits the control signal to the power controller by comparing the target light intensity and the real-time light intensity, and further transmits it to the lifting module stepper motor 8-4, so as to adjust the light source height through the light source lifting module 8, and indirectly adjust the light intensity;

[0066] 2. When solidifying tasks

[0067] 1. Turn off light source 4;

[0068] 2. Injecting light-curing material into the mold or tank 3;

[0069] 3. Turn on light source 4;

[0070] 3. After the solidification task

[0071] 1. Turn off light source 4;

[0072] 2. Open the front side plate of the light shield 1 and take out the mold or material tank 3;

[0073] 3. Turn off the cooling fan 6;

[0074] 4. Turn off the power switch of the device;

[0075] 5. Check the integrity of the equipment.

[0076] The above description is only a preferred feasible implementation example of the present invention, and it cannot be used to limit the scope of rights of the present invention. For those skilled in the art, all other corresponding changes made using the technical scheme and technical concept of the present invention should fall within the scope of protection of the claims of the present invention.

Claims

1. A light curing device, characterized in that: The invention comprises a light shield (1) with an openable front side plate, a stage (2) placed on the inner bottom plate of the light shield (1), a mold or a material tank (3) placed on the stage (2), a light source (4) suspended above the mold or the material tank (3) and providing light of a specific wavelength required for curing a light-curable material, a light source conversion module (5) connected to the light source (4) and realizing conversion between multiple light sources of specific wavelengths, a light source lifting module (8), a light source translation module (10) and a light source rotation module (12) realizing spatial position adjustment of the light source (4), and a light source rotating module (13) suspended above the mold. A light intensity meter (7) for measuring the light intensity at a preset position above the light-curing material, located above the tool or material tank (3); a light intensity meter lifting module (9), a light intensity meter translation module (11) and a light intensity meter rotation module (13) for realizing spatial position adjustment of the light intensity meter (7); an electrical system control box (14) for supplying power to the light source (4) and the light intensity meter (7) and realizing the analysis and transmission of control signals for spatial position adjustment of the light source (4) and the light intensity meter (7); and a cooling fan (6) located outside the light shield (1) for cooling the light source (4) and outputting cold energy; The light source conversion module (5) comprises a rotating disk (5-1), wherein a light source tube (4-3) protruding from the plane of the rotating disk (5-1) is installed in a plurality of holes around the rotating disk (5-1) in an interference fit, and the rotating disk (5-1) can rotate around a bearing (5-2) at its center, and the rotating disk (5-1) is provided with a clamping groove between the holes around the rotating disk (5-1) in the radial direction; a light source column (5-8) is fixed on the upper part of the rotating disk (5-1), and an air cooling channel light source converter section (5-10) and a power line light source converter section (5-9) are arranged inside the light source column (5-8); an inclined fixed disk (5-5) is fixed on the lower part of the light source column (5-8), and a positioning spring (5-6) is fixed on the inclined fixed disk (5-5); when it is necessary to convert different light sources, the rotating disk (5-1) rotates around the bearing (5-2), and the positioning spring (5-6) is fixed on the inclined fixed disk (5-5); -6) is inserted into one of the slots on the rotating disk (5-1), and while positioning the selected light source, it is possible to ensure that the air-cooling channel light source section (4-4) and the power line light source section (4-5) inside the corresponding light source tube (4-3) are connected to the air-cooling channel light source converter section (5-10) and the power line light source converter section (5-9) inside the light source column (5-8) respectively; and the other end of the air-cooling channel light source converter section (5-10) is connected to the air cooler (6) through a cold air duct; one end of the spring (5-4) is fixed on the inclined fixed disk (5-5), and the other end is connected to the inner wall of the hollow central shaft (5-3) installed in the bearing (5-2) through an interference fit, and the spring (5-4) ensures that the positioning spring (5-6) is in close contact with the slot on the rotating disk (5-1), and at the same time ensures that the axial direction can be slightly extended and retracted during the light source conversion process; The light source lifting module (8) comprises a lifting module mounting plate (8-1), a lifting module bearing (8-2) mounted on the lifting module mounting plate (8-1), a lifting module screw (8-6) mounted in the lifting module bearing (8-2), a lifting module guide shaft (8-7) mounted on the lifting module mounting plate (8-1) and located on both sides of the lifting module screw shaft (8-6), a light source translation module mounting block (8-8) threadedly connected to the lifting module screw shaft (8-6) and installed with clearance fit with the lifting module guide shaft (8-7), a lifting module motor frame (8-3) mounted on the lifting module screw shaft (8-6) and located at the top end of the lifting module screw shaft (8-6), and a lifting module motor frame (8-3) placed in the lifting module motor frame (8-3) through lifting. The lifting module stepping motor (8-4) is connected to the lifting module screw rod (8-6) through the lifting module coupling (8-5), and the lifting module limiter (8-9) is installed on the lifting module guide shaft (8-7) and is located at the upper and lower parts of the light source translation module mounting block (8-8) to limit the lifting stroke of the light source translation module mounting block (8-8); the lifting module stepping motor (8-4) drives the lifting module screw rod (8-6) to rotate through the lifting module coupling (8-5), drives the light source translation module mounting block (8-8) to move up and down, and finally realizes the movement of the light source (4) in the vertical direction; the light intensity meter lifting module (9) has the same structure and function as the light source lifting module (8), and realizes the movement of the light intensity meter (7) in the vertical direction.

2. A light curing device according to claim 1, characterized in that: The light source (4) comprises a light source tube (4-3), an air cooling channel light source section (4-4) and a power line light source section (4-5) disposed in the light source tube (4-3); the light bulb (4-1) is disposed in the light source tube (4-3) and is connected to the power line light source section (4-5) via a power interface (4-2).

3. A light curing device according to claim 2, characterized in that: The number of holes around the rotating disk (5-1) is six, and the number of light bulbs (4-1) is also six, including three light bulbs with light wavelengths of 365nm, 395nm and 405nm respectively, and three light bulbs with wavelengths customized by users.

4. A light curing device according to claim 1, characterized in that: The light source rotating module (12) comprises a rotating module mounting plate (12-1) and a base (12-4) respectively connected to the upper top plate and the lower bottom plate of the light shield (1) by screws, a rotating module bearing (12-2) mounted at the center of the rotating module mounting plate (12-1) and the base (12-4), an upper connecting rod (12-3-1) and a lower connecting rod (12-3-2) respectively welded to the lifting module motor frame (8-3) and the lifting module mounting plate (8-1), one end of the upper connecting rod (12-3-1) and the lower connecting rod (12-3-2) are respectively mounted in the two rotating module bearings (12-2), and a pulley (1 2-5) is sleeved on the lower connecting rod (12-3-2) with an interference fit, and the belt (12-6) is wound around the pulley (12-5) and the motor wheel (12-8) of the rotating module stepper motor (12-7); the rotating module stepper motor (12-7) drives the motor wheel (12-8) to rotate, and then drives the pulley (12-5) to rotate through the belt (12-6), further realizing the rotation of the light source lifting module (8), and finally realizing the rotation of the light source (4) in the horizontal plane; the light intensity meter rotating module (13) has the same structure and function as the light source rotating module (12), and realizes the rotation of the light intensity meter (7) in the horizontal plane.

5. The light curing device according to claim 1, characterized in that: The light source translation module (10) is mounted on a light source translation module mounting block (8-8), comprising a translation module mounting plate (10-1), a plurality of translation module guide shafts (10-5) mounted on the translation module mounting plate (10-1), a translation module stepping motor (10-2) mounted on the translation module mounting plate (10-1) and located between the plurality of translation module guide shafts (10-5), a translation module lead screw (10-4) connected to the translation module stepping motor (10-2) via a translation module coupling (10-3), an end of the translation module lead screw (10-4) mounted in a translation module bearing (10-7), a light source unit mounting block (10-6) threadedly connected to the translation module lead screw (10-4) and installed with clearance fit to the translation module guide shaft (10-5), one end of which is welded to the translation module guide shaft (10-5). The light source conversion module (5) is mounted on a light source unit mounting block (10-6) through a light source column fixing ring (5-7); the translation module stepping motor (10-2) drives the translation module lead screw (10-4) to rotate through a translation module coupling (10-3), thereby driving the light source unit mounting block (10-6) to translate along the translation module guide shaft (10-5), and finally realizing the movement of the light source (4) installed on the light source conversion module (5) along the translation module guide shaft (10-5) in a horizontal plane; the light intensity meter translation module (11) has the same structure and function as the light source translation module (10), and realizes the movement of the light intensity meter (7) along the axis in a horizontal plane.

6. A light curing device according to claim 1, characterized in that: The electrical system control box (14) comprises a transmitter, a power converter, a PLC controller and a power controller, wherein the PLC controller and the power controller are powered by the power converter; the computer transmits a signal to the PLC controller, and the PLC controller transmits the translated signal to the power controller, and the power controller controls the rotation of the stepping motors of the light source lifting module (8), the light intensity meter lifting module (9), the light source translation module (10), the light intensity meter translation module (11), the light source rotation module (12) and the light intensity meter rotation module (13), thereby realizing the control of the light source lifting module (8), the light intensity meter lifting module (9), the light source translation module (10), the light intensity meter translation module (11), the light source rotation module (12) and the light intensity meter rotation module (13) by the computer; In order to achieve real-time adjustment of the light source height, so that the real-time light intensity at a preset position above the light-curing material meets the target light intensity, a transmitter is added between the light intensity meter (7) and the PLC controller in the control of the light source lifting module (8). The transmitter converts the light intensity signal measured in real time by the light intensity meter (7) into a voltage signal and transmits it to the PLC controller. The PLC controller compares the signal input by the computer, i.e., the target light intensity, with the signal input by the transmitter, i.e., the real-time light intensity, and outputs a control signal to the power controller. The power controller controls the stepper motor of the light source lifting module (8) to rotate and adjust the light source height until the real-time light intensity is the same as the target light intensity.

7. A light curing device according to claim 6, characterized in that: The power line light source converter section (5-9) is connected to a power converter in an electrical system control box (14) to realize power supply to the light source (4).

8. The light curing device according to claim 6, characterized in that: The light intensity meter (7) is connected to a power converter in an electrical system control box (14) to realize power supply for the light intensity meter (7).

9. The light curing device according to claim 1, characterized in that: Slide rails are installed on both sides of the loading platform (2), and when the front side plate of the light shield (1) is opened, it can be pulled in the horizontal direction, so that the mold or material trough (3) moves with the loading platform (2), which is convenient for placement and retrieval.

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