TWM484504U - Three-dimensional forming mechanism and liquid containing tank thereof - Google Patents

Description

Three-dimensional forming mechanism and its liquid receiving tank

The present invention relates to a three-dimensional forming mechanism, in particular to a liquid storage tank utilizing a fluorine-containing protective layer or a tank formed by combining a fluorine-containing component to achieve chemical resistance, high temperature resistance and self-lubricity, and prevention of molding. The liquid solidification process adheres to the liquid tank of the three-dimensional forming mechanism that damages the bottom plate.

Due to the rapid development of science and technology, the printing project has been extended from flat printing to three-dimensional printing technology. The common printer series used in daily life prints flat objects, while the 3D printer works in the same way as a normal printer, except that the printing materials are somewhat different. The printing materials of ordinary printers are ink and paper. The 3D printer is equipped with different "printing materials" such as metal, ceramics, plastics, sand, etc., which are layered and processed by the raw materials through computer control, and finally the blueprint on the computer is turned into The three-dimensional object can print robots, toy cars, food and various models.

The three-dimensional printing system is developed by Rapid Prototyping (RP) based on the concept of constructing pyramid layer stacking. The main technical feature is the rapid molding, which can be used without any tools, molds and treatments. Automatically and quickly convert any complex shape design into a 3D solid model, which greatly shortens the development cycle of new products and reduces R&D costs, and ensures the time-to-market of new products and the success of new product development. rate.

At present, there are three mainstream technologies for three-dimensional printing rapid prototyping technology:

The first type is selective laser sintering (SLS), which is made of powdered material. It is formed by powdery material, and the material powder is spread on the upper surface of the formed part, and flattened with high-intensity CO2 laser. The material is scanned on the new layer of the freshly laid layer. The powder of the part is sintered together under high-intensity laser irradiation to obtain the cross section of the part and bonded to the formed part below. When the layer is sintered, it is laid. A new layer of material powder is selected to selectively sinter the lower cross section.

The second type is fused deposition molding technology. The 3D model needs to be thinned, the material is melted into a liquid state at a high temperature, and then a small spherical particle is extruded through a nozzle, and the particles are solidified immediately after being sprayed. The arrangement of the particles in the three-dimensional space forms a solid object. This technology has high molding precision and higher physical strength, but the surface is rough after molding.

The third type is stereolithography modeling technology (SLA): the 3D digital model is first “cut” into several planes by software, and a lot of profiles are formed. At work, there is a platform that can be lifted. There is a liquid trough around the platform. The trough is filled with liquid that can be cured by ultraviolet radiation. The ultraviolet laser is placed above the liquid trough. The light source is projected from top to bottom, and solidifies from the bottom layer, and then moves down from the platform. One layer, so reciprocating gradually layered up and then formed until the final shape. The advantages of stereolithography modeling technology are high precision, accurate surface expression and smoothing effect, and the precision can reach 0.05 mm to 0.15 mm per layer. However, the disadvantage is that the material demand is high, and the amount of damage is high when damaged.

Therefore, a variant of sla/dlp is extended, and the light source of the molding principle is illuminated from bottom to top. The cured product is adhered to the forming plate and peeled off at the bottom of the liquid resin. This method can effectively reduce consumables and easily increase. Height, but the disadvantages are: 1. Layered peeling makes it difficult to pull easily. 2. The molding material is stuck to the bottom plate. 3. It is easy to damage the problem of the forming groove and the formed model.

Therefore, how to overcome the loss of the stereolithography modeling technology during the molding process Bad technical problems have long been a topic that industry and academia have been trying to solve.

In view of this, the present invention provides a liquid storage tank with a fluorine-containing protective layer or a fluorine-containing component body to achieve chemical resistance, high temperature resistance and self-lubrication, and prevents the molding liquid from solidifying. Adhesive damage to the bottom plate is the main purpose.

The present invention is applied to a liquid storage tank of a three-dimensional forming mechanism, which is applied to a three-dimensional forming mechanism for accommodating a molding liquid, and the liquid storage tank is surrounded by a tank body for accommodating a space, and The groove body is provided with a transparent or semi-transmissive bottom plate on the bottom plate, and the transparent or semi-transmissive region is provided with a fluorine-containing transparent or semi-transmissive protective layer relative to the receiving space; or The liquid tank is integrally formed of a fluorine-containing material and forms a light-transmissive or semi-transmissive tank.

The main focus of this creation is: the molding liquid is disposed in the liquid storage tank, and the molding liquid is formed by curing in the fluorine-containing protective layer or the fluorine liquid storage tank, and further resisting by fluorine characteristics when peeling the liquid storage tank Chemical, high temperature resistance and self-lubricating property, preventing the curing process of the molding liquid from sticking to the bottom plate and causing damage, and enhancing the durability of the liquid tank.

According to the above structural feature, the protective layer is coated on the light-transmissive region or the semi-transmissive region by a fluorine-containing component (polytetrafluoroethylene) to form a fluorine-based coating.

According to the above structural feature, the protective layer is a film adhesive layer attached to the light transmissive region or the semi-transmissive region.

According to the above structural features, the film thickness of the film is less than 3 mm, and the optimum thickness is between 0.08 mm and 0.28 mm.

According to the above structural features, the groove system is made of acrylic material, or glass material, or polycarbonate (PC), or high light transmittance material. type.

According to the above structural feature, the groove system is provided with a thickening portion, and the thickening portion forms a gap with the groove body.

The liquid storage tank for the three-dimensional forming mechanism of the present invention comprises at least a liquid storage tank, wherein the liquid storage tank is provided with a tank body for accommodating the space, and the tank body is provided with a light transmission area or a bottom plate of the semi-transmissive region, and the transparent or semi-transmissive region is provided with a transparent or semi-transmissive protective layer of fluorine-containing component in a relatively accommodating space; a molding mechanism is disposed above the liquid-slot The forming mechanism is provided with a forming plate connecting a lifting assembly; a light source member is disposed on one side of the liquid receiving groove, and the light source member is capable of projecting the light source to the light transmitting hole.

According to the above structural feature, the protective layer is coated on the light-transmissive region or the semi-transmissive region by a fluorine-containing component (polytetrafluoroethylene) to form a fluorine-based coating.

According to the above structural feature, the protective layer is a film adhesive layer attached to the light transmissive area or the semi-transmissive area, and the film adhesive layer thickness is less than 1 mm, and the optimal thickness is between 0.08 mm and 0.28. Between mm.

According to the above structural feature, the lifting assembly is provided with a first actuating member and a screw is connected, and the moving component is provided with a second actuating member, and the second actuating member is coupled to the fixing plate.

According to the above structural feature, the liquid storage tank is provided with a moving component, and the moving component is provided with a fixing plate and two sliding bars, and the fixing plate has a light transmission hole and two sliding grooves, and the two sliding grooves respectively The second sliding rod is disposed, and the liquid storage tank is fixed on the fixing plate.

According to the above structural feature, the light source component may be a digital light processing (DLP), or a laser light source, or a light emitting diode (LED).

Specifically, the invention disclosed in the present application is applied to a three-dimensional molding mechanism. The liquid tank can produce the following effects:

1. The fluorine-containing component of the liquid storage tank is protected from chemical, high-temperature and self-lubricating, and is advantageous for the release process.

2. Prevent the molding from sticking to the bottom plate during the printing process, resulting in damage to the bottom plate.

3. Repeat the printing several times to improve the forming of small parts and large parts.

4. It can reduce the damage of the process tank equipment and reduce the manufacturing cost.

5. Achieve stable and good print quality.

10‧‧‧ Liquid tank

11‧‧‧Lighting area

111‧‧‧ Thickening

12‧‧‧ accommodating space

13‧‧‧floor

14‧‧‧Protective layer

15‧‧‧ molding liquid

151‧‧‧thin layer

20‧‧‧Molding mechanism

21‧‧‧Forming board

22‧‧‧ Lifting components

221‧‧‧First Actuator

222‧‧‧ screw

30‧‧‧Mobile components

31‧‧‧ fixed plate

311‧‧‧Light hole

312‧‧ ‧ chute

32‧‧‧Slider

33‧‧‧Second Actuator

40‧‧‧Light source parts

50‧‧‧Three-dimensional workpiece

The first figure is a three-dimensional structure diagram of the first embodiment of the creation.

The second figure is a schematic structural view of the first embodiment of the creation.

The third figure is a schematic structural view of the second embodiment of the present creation.

The fourth picture is a three-dimensional structure diagram of the application of this creation.

The fifth figure is a three-dimensional structure diagram of another application of the creation.

The sixth figure is a state diagram of the partial stereo structure of the application of this creation.

The seventh picture is a schematic diagram of another structure of the creation.

The characteristics of this creation can be clearly understood by referring to the detailed description of the drawings and the examples.

The first embodiment of the present invention, for example, the first drawing is a three-dimensional structure of the creation, and the second drawing is schematically shown in the structure of the creation. The liquid tank of the present invention is applied to a three-dimensional forming mechanism, and the liquid tank 10 is It can be formed by an acrylic material, a glass material, a polycarbonate (Polycarbonate, PC), or a high-transparent material, and the liquid tank 10 is a tank body for enclosing a receiving space of the plate member, and the The trough body is provided with a light transmissive area 11 The bottom plate 13 of the (or semi-transmissive region), and the transparent region 11 (or semi-transmissive region) is provided with a fluorine-containing transparent or semi-transmissive protective layer 14 opposite to the accommodating space 12.

Furthermore, the protective layer 14 is applied to the light-transmissive region 11 (or semi-transmissive region) by a fluorine-containing component (polytetrafluoroethylene) to form a fluorine-based coating.

Of course, the protective layer 14 can also be a film adhesive layer, and the film adhesive layer is attached to the light transmitting region 11 (or semi-transmissive region), and the thickness of the film adhesive layer is less than 3 mm, and the optimal thickness is Between 0.08mm and 0.28mm, it not only has better chemical resistance, high temperature resistance and self-lubricating property, but also has better transparency. The smoothness of the molding liquid curing process is easy to peel off and prevent sticking to protect the liquid tank. 10 and enhance its durability.

In the second embodiment of the present invention, as shown in the third figure, the liquid tank of the present invention is applied to a three-dimensional forming mechanism, and the liquid tank 10 is integrally formed of a fluorine-containing material and forms a light-transmitting region 11 (or The tank body of the semi-transmissive region is surrounded by the tank body to form an accommodating space 12. Alternatively, the liquid tank 10 is made of polytetrafluoroethene (PTFE) or a full fluorine-containing material of tetrafluoroethylene (PFA) to form a transparent or semi-transparent groove. The body is surrounded by an accommodating space 12.

In summary, as shown in the fourth figure, the liquid guiding tank 10 of the first embodiment and the second embodiment is applied to the three-dimensional forming mechanism, and at least includes: a liquid tank 10, the liquid tank 10 The trough body of the accommodating space 12 is surrounded by the plate member, and the trough body is provided with a bottom plate 13 having a light transmitting region 11 (or a semi-transmissive region), and the light transmitting region 11 (or the semi-transmissive region) is opposite The accommodating space is provided with a transparent or semi-transmissive protective layer 14 of a fluorine-containing component; a molding mechanism 20 is disposed above the liquid-groove 10, and the molding mechanism 20 is provided with a molding plate 21 to connect a lifting assembly. 22; a light source member 40 is disposed on one side of the liquid storage tank 10, and the light source 40 is configured to project a light source to the light transmission hole 311.

Therefore, when actually implemented, the accommodating space of the liquid tank 10 is provided with a molding liquid 15, and the molding liquid 15 is a liquid photosensitive resin. When forming, the light source member 40 passes through the light transmitting portion 11 of the bottom plate 13 (or half). The light-transmitting region), the liquid photosensitive resin is projected by the light beam, and the liquid photosensitive resin is polymerized to gradually solidify to form a thin layer 151 of the workpiece, and then the first actuator 221 is coupled with a screw 222 to control the lifting assembly. 22 drives the control forming plate 21 to move vertically and downwardly, and is lowered by the forming plate 21 to adhere the thin layer 151 and then the forming plate 21 is raised to make the thin layer 151 easy to peel upward smoothly, so as to repeatedly move upward and layer by layer, the liquid photosensitive resin By projecting the light beam by the light source member 40, the liquid photosensitive resin is solidified by layering on the forming plate 21 to achieve a solid layering process.

Furthermore, as shown in the fifth and sixth figures, the liquid tank 10 can be provided with a moving component 30, and the moving component 30 is provided with a fixing plate 31 and two sliding bars 32, and the fixing plate 31 has a transparent The light hole 311 and the two sliding grooves 312 and the two sliding grooves 312 respectively pass through the two sliding rods 32, and the liquid receiving groove 10 is fixed on the fixing plate 31, and the liquid guiding groove 10 is driven by the moving assembly 30. Control lateral action.

First, a screw 222 is connected by the first actuating member 221 to control the lifting and lowering assembly 22 to control the longitudinal movement of the forming plate 21, and is lowered by the forming plate 21 to adhere to the thin layer 151, and the second actuating member 33 is coupled to the fixing. The plate 31 moves the fixing plate 31 laterally by sliding between the sliding groove 312 and the sliding bar 32, so that the forming plate 21 and the liquid guiding groove 10 are relatively moved to approach the gap, and then the forming plate 21 is raised. It is easier for the thin layer 151 to be smoothly peeled off from the liquid tank 10 to achieve integrity.

Further, as shown in the seventh embodiment, the light transmitting region 11 (or the semi-transmissive region) in the first embodiment and the second embodiment is provided with a thickening portion 111, and the thickening portion 111 is formed with the groove body. The thinning layer 151 is formed on the thickened portion 111 by the light source projection curing process of the molding liquid 15 through the light source member 40, and is controlled by the lifting assembly 22. The stencil 21 is lowered to adhere the thin layer 151, and the fixing plate 31 is laterally moved to move the forming plate 21 in the direction of the deviation, and then the forming plate 21 is raised to make the thin layer 151 smoothly peel off upward, so that the operation is repeated upwards. Adhesively layer by layer, and completes the printing of a solid body of the solid workpiece 50.

Further, the light source member 40 can be a digital light processing (DLP), or a laser light source, or a light emitting diode (LED), and the light source can be projected into the liquid tank to make the molding liquid light. Curing effect

Compared with the traditional structure, this creation achieves technical efficiency and its system can reach:

1. The liquid tank has the protection of fluorine-containing components, and achieves chemical resistance, high temperature resistance and self-lubrication, and is advantageous for the release process of printing.

2. Prevent the molding from sticking to the bottom plate during the printing process, resulting in damage to the bottom plate.

3. Repeated printing several times to improve the forming of small parts and the peeling of large parts.

4. It can reduce the damage of the process tank equipment and reduce the manufacturing cost.

5. Achieve stable and good print quality.

In summary, the present invention provides a better and feasible three-dimensional forming mechanism and its liquid tank, and submits a new patent application according to law; the technical content and technical features of the present invention are disclosed above, but those skilled in the art are familiar. It is still possible to make various substitutions and modifications based on the disclosure of this creation without departing from the spirit of the creation of the case. Therefore, the scope of the present invention is not limited to the embodiments disclosed, but includes various alternatives and modifications that do not depart from the present invention and are covered by the following claims.

10‧‧‧ Liquid tank

11‧‧‧Lighting area

12‧‧‧ accommodating space

13‧‧‧floor

14‧‧‧Protective layer

Claims (14)

a liquid storage tank, wherein the liquid tank is surrounded by a tank body for accommodating a space, and the tank body is provided with a bottom plate having a light transmitting region or a semi-light transmitting region, and the light transmitting region or the semi-light transmitting region The opposite accommodating space is provided with a transparent or semi-transmissive protective layer of fluorine-containing components. The invention is a liquid storage tank, wherein the liquid tank is surrounded by a tank body for accommodating a space, and the tank body is provided with a bottom plate having a light transmitting region or a semi-light transmitting region, and the liquid tank is fluorine-containing. The material of the ingredients is integrated. The liquid storage tank according to claim 1 or 2, wherein the light transmitting area or the semi-light transmitting area is provided with a thickening portion, and the thickening portion forms a gap with the groove body. The liquid storage tank according to claim 1, wherein the protective layer is coated with a fluorine-containing component (polytetrafluoroethylene) in the light-transmissive region or the semi-transmissive region to form a fluorine-based coating layer. The liquid storage tank according to claim 1, wherein the protective layer is a film adhesive layer attached to the light transmissive area or the semi-transmissive area, and the film adhesive layer has a thickness of less than 3 mm, and the optimum thickness is Between 0.08mm and 0.28mm. The liquid storage tank according to claim 1, wherein the groove system is made of acrylic material, or glass material, polycarbonate (PC), or high light transmission material. The utility model relates to a three-dimensional forming mechanism, which comprises at least a liquid storage tank, wherein the liquid storage tank is provided with a tank body for accommodating a space, and the tank body is provided with a bottom plate with a light transmitting area or a semi-light transmitting area. The transparent or semi-transmissive region is provided with a transparent or semi-transmissive protective layer of fluorine-containing component in a relatively accommodating space; a molding mechanism is disposed above the liquid-groove, and the molding mechanism is formed by molding. The plate is coupled to a lifting assembly; a light source member is disposed on one side of the liquid receiving groove, and the light source member projects the light source toward the light transmitting hole. The three-dimensional forming mechanism of claim 7, wherein the lifting assembly is provided with a first actuating member and a screw is coupled, and the moving member is provided with a second actuating member, and the second The actuating member interlocks the fixing plate. The three-dimensional forming mechanism of claim 7 or 8, wherein the liquid-slot is provided with a moving component, and the moving component is provided with a fixing plate and two sliding bars, and the fixing plate has a light-transmitting hole and two The sliding slot is disposed on the two sliding slots, and the liquid guiding slot is fixed on the fixing plate. The stereoscopic molding mechanism of claim 7, wherein the light source member is a Digital Light Processing (DLP), or a laser light source, or a light emitting diode (LED). The three-dimensional forming mechanism of claim 7, wherein the light transmissive area or the semi-transmissive area is provided with a thickening portion, and the thickening portion forms a gap with the trough body. The three-dimensional molding mechanism of claim 7, wherein the protective layer is coated with a fluorine-containing component (polytetrafluoroethylene) in the light-transmitting region or the semi-transmissive region to form a fluorine-based coating. The three-dimensional molding mechanism of claim 7, wherein the protective layer is a film adhesive layer attached to the light transmissive region or the semi-transmissive region, and the thickness of the film adhesive layer is less than 3 mm, and the optimal thickness is Between 0.08mm and 0.28mm. The three-dimensional forming mechanism according to claim 7, wherein the groove system is made of an acrylic material, or a glass material, or a polycarbonate (PC), or a high light transmissive material.