3D printing integrated manufacturing device and printing method

Abstract

According to the 3D printing integrated manufacturing device and the printing method, a printing switching driving mechanism is used for switching materials attached to a material containing groove in the working state of a corresponding forming part of a forming face to form a forming curing layer through light curing, and construction of different surface models of an integrated carrying table can be completed, that is, different working surfaces of a 3D component can be subjected to 3D printing. And integrated and one-time printing construction is realized.

Description

[Technical field]

[0001] The present invention relates to the technical field of additive manufacturing, and in particular to a 3D printing integrated manufacturing device and a printing method. [Background technology]

[0002] Additive manufacturing 3D printing applications, with the update and iteration of equipment, the diversification of printing methods and the enrichment of material properties; 3D printing technology is fast, flexible and precise, and has practical applications in aerospace, biomedicine, cultural creativity, electronics and electrical and other fields.

[0003] Today’s additive manufacturing is usually done by molding the same material or several materials in one piece. The advantages of this molding method are convenience and no restrictions on shape. However, the disadvantages are also obvious. For example, when printing a high-regular model, the build time is relatively long; when repairing some workpieces, it is impossible to print and repair directly on the repair surface; under working conditions such as printing on the surface of an existing model, it is also very difficult to implement.

[0004] Therefore, the present invention is studied and proposed in view of the above problems. [Summary of the invention]

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a 3D printing integrated manufacturing device and a printing method. The device switches the corresponding molding part of the molding surface through a printing switching drive mechanism, and the material attached to the material holding groove in the working state is photocured to form a molding solidified layer, which can complete the construction of different surface models of the integrated carrier, that is, to achieve integrated, one-time printing and construction of different working surfaces of the 3D component.

[0006] The present invention is achieved through the following technical solutions:

[0007] A 3D printing integrated manufacturing device, comprising:

[0008] frame;

[0009] A material holding tank 1, wherein the material holding tank 1 is located on the frame;

[0010] 3D printing optical machine system 2, the 3D printing optical machine system 2 is a multi-wavelength light source system, used to generate images and illuminate the material in the material holding tank 1 to obtain a molding solidified layer, and also serves as an illumination and alignment light source. The wavelength used at this time is insensitive to the material and has a certain transmittance in the material so as to observe the existing pattern and condition of the molding surface;

[0011] An integrated carrier 3, the integrated carrier 3 is located above the material holding tank 1, the integrated carrier 3 comprises a carrier body 31, and the carrier body 31 is provided with a molding surface 32 for realizing multi-angle printing during the printing process;

[0012] A printing switching driving mechanism 4, the printing switching driving mechanism 4 is located on the frame and is used to drive the integrated stage 3 to move relative to the material holding tank 1, thereby switching the corresponding molding part of the molding surface 32 to adhere to the material in the material holding tank 1 in the working state to form a molding solidified layer by light curing;

[0013] The carrier driving mechanism 5 is located on the frame and is used to drive the integrated carrier 3 to move up and down relative to the material holding tank 1, so that the molding solidified layer continuously attached to the molding surface 32 accumulates to form a 3D component.

[0014] In a 3D printing integrated manufacturing device as described above, the stage driving mechanism 5 includes a stage driving motor 51 arranged on a frame, the motor shaft of the stage driving motor 51 is movably connected to a stage transmission screw 52 extending along the Z-axis direction of the frame, the stage transmission screw 52 is slidably connected to a stage sliding seat 53 that can slide along the Z-axis direction of the frame, and the printing switching drive mechanism 4 is located between the stage sliding seat 53 and the integrated stage 3.

[0015] As described above, a 3D printing integrated manufacturing device, the printing switching drive mechanism 4 includes a left and right rotating seat 42 arranged on a carrier sliding seat 53, and a rotating seat driving component 41 for driving the left and right rotating seat 42 to rotate around the Y axis of the frame is provided between the left and right rotating seat 42 and the carrier sliding seat 53; a pitch flip seat 44 capable of flipping around the X axis of the frame is connected to the left and right rotating seat 42, and a flip seat driving component 43 for driving the pitch flip seat 44 to flip around the X axis of the frame is provided between the pitch flip seat 44 and the left and right rotating seat 42; the integrated carrier 3 is located on the pitch flip seat 44.

[0016] In the 3D printing integrated manufacturing device as described above, a release component 11 is provided at the bottom of the material holding tank 1 .

[0017] In the 3D printing integrated manufacturing device as described above, the 3D printing optical-mechanical system 2 is DMD or LCD or LCOS or MicroLED.

[0018] In the 3D printing integrated manufacturing device as described above, the frame is also provided with a positioning detection mechanism 6 for assisting in positioning the relative position between the 3D printing optical-mechanical system 2 and the integrated carrier 3 .

[0019] In a 3D printing integrated manufacturing device as described above, the positioning detection mechanism 6 is arranged below the material holding tank 1 and located on one side of the optical path of the 3D printing optical system 2, and a spectroscopic reflector 7 is provided on the frame and located on the optical path of the 3D printing optical system 2. The spectroscopic reflector 7 is used to make the optical paths of the positioning detection mechanism 6 and the 3D printing optical system 2 conjugate with the molding surface 32 for imaging.

[0020] In the 3D printing integrated manufacturing device as described above, the positioning detection mechanism 6 is a CCD.

[0021] The present invention also provides a printing method of a 3D printing integrated manufacturing device, wherein the printing method uses the 3D printing integrated manufacturing device as described above, and comprises the following steps:

[0022] S1, driving the integrated platform 3 to move up and down relative to the material holding tank 1 by the platform driving mechanism 5, so that a layer thickness gap of a formed and solidified layer exists between a forming portion of a forming surface 32 on the integrated platform 3 and the inner bottom of the material holding tank 1;

[0023] S2, generating an image through the 3D printing optical machine system 2 and irradiating the material in the material holding tank 1 to obtain a molded solidified layer, and the molded solidified layer is attached to one of the molding parts of the molding surface 32;

[0024] S3, driving the integrated stage 3 to move relative to the material holding tank 1 through the printing switching driving mechanism 4, thereby switching the other molding part of the molding surface 32 to form a molding solidified layer by light curing the material attached to the material holding tank 1 in the working state;

[0025] S3. Repeat the above steps S1-S3 until the molding solidified layer continuously attached to the molding surface 32 accumulates to form a 3D component.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] 1. The present invention switches the corresponding molding part of the molding surface through the printing switching drive mechanism. In the working state, the material attached to the material holding groove is photocured to form a molding solidified layer, which can complete the construction of different surface models of the integrated carrier, that is, for different working surfaces of the 3D component, an integrated and one-time printing construction is realized.

[0028] 2. A release component is provided at the bottom of the material holding tank, which can effectively prevent the molded solidified layer from being damaged during the peeling process and ensure the printing quality of the molded solidified layer.

[0029] 3. In order to ensure accurate positioning and printing, the frame is also equipped with a positioning detection mechanism to assist in positioning the relative position between the 3D printing optical system and the integrated carrier.

[0030] 4. The printing method of the present invention adopts the above-mentioned 3D printing integrated manufacturing device. The printing method can complete the construction of different surface models of the integrated carrier, that is, to achieve integrated, one-time printing construction for different working surfaces of the 3D component, and at the same time has the characteristics of high printing efficiency and simple printing.

Brief Description of the Drawings

[0031] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0032] Figure 1 It is a stereogram of the present invention.

[0033] Figure 2 It is the front view of the present invention.

[0034] Figure 3 It is a schematic diagram of the local structure of the present invention.

[0035] Figure 4 It is a schematic diagram of the structure of the integrated carrier in the present invention.

[0036] Figure 5 It is the front view of the integrated carrier in the present invention.

[0037] Figure 6 It is a schematic diagram of the local structure of the integrated carrier in the present invention.

[0038] Figure 7 It is a schematic diagram of the printing process of the present invention. [Specific implementation method]

[0039] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0040] like Figure 1-7 As shown, the present invention provides a 3D printing integrated manufacturing device, comprising: a frame;

[0041] A material holding tank 1, wherein the material holding tank 1 is located on the frame;

[0042] 3D printing optical machine system 2, the 3D printing optical machine system 2 is a multi-wavelength light source system, used to generate images and illuminate the material in the material holding tank 1 to obtain a molding solidified layer, and also serves as an illumination and alignment light source. The wavelength used at this time is insensitive to the material and has a certain transmittance in the material so as to observe the existing pattern and condition of the molding surface;

[0043] An integrated carrier 3, the integrated carrier 3 is located above the material holding tank 1, the integrated carrier 3 comprises a carrier body 31, and the carrier body 31 is provided with a molding surface 32 for realizing multi-angle printing during the printing process;

[0044] A printing switching driving mechanism 4, the printing switching driving mechanism 4 is located on the frame and is used to drive the integrated stage 3 to move relative to the material holding tank 1, thereby switching the corresponding molding part of the molding surface 32 to adhere to the material in the material holding tank 1 in the working state to form a molding solidified layer by light curing;

[0045] The stage driving mechanism 5 is located on the frame and is used to drive the integrated stage 3 to move up and down relative to the material holding tank 1, so that the molding solidified layer continuously attached to the molding surface 32 accumulates to form a 3D component. The present invention can complete the construction of different surface models of the integrated stage, that is, realize integrated, one-time printing construction for different working surfaces of the 3D component by switching the corresponding molding part of the molding surface with the material attached to the material holding tank in the working state to form a molding solidified layer through photocuring through the printing switching driving mechanism.

[0046] The molding surface 32 for realizing multi-angle printing includes at least two molding parts, such as Figure 4-6 As shown, one of the molding parts is arranged on the lower end surface of the carrier body 31, and the other molding part is arranged on the side surface of the carrier body 31. During the printing process, the printing switching drive mechanism 4 drives the integrated carrier 3 to move relative to the material holding tank 1, and then switches the corresponding molding part of the molding surface 32 to adhere to the material in the material holding tank 1 in the working state to form a molding solidified layer by light curing. In the present invention, the molding surface 32 has three molding parts, such as Figure 4-6 shown.

[0047] like Figure 1-3 As shown, in order to improve printing efficiency and ensure transmission stability, the stage driving mechanism 5 includes a stage driving motor 51 arranged on the frame, and the motor shaft of the stage driving motor 51 is movably connected to a stage transmission screw 52 extending along the Z-axis direction of the frame, and the stage transmission screw 52 is slidably connected to a stage sliding seat 53 that can slide along the Z-axis direction of the frame, and the print switching drive mechanism 4 is located between the stage sliding seat 53 and the integrated stage 3.

[0048] like Figure 1-3 As shown, in order to improve the printing efficiency and to better switch the corresponding molding part in the working state, the material attached to the material holding groove is formed by light curing to form a molding solidified layer, the printing switching drive mechanism 4 includes a left and right rotating seat 42 arranged on the platform sliding seat 53, and a rotating seat driving component 41 for driving the left and right rotating seat 42 to rotate around the Y axis of the frame is provided between the left and right rotating seat 42 and the platform sliding seat 53; the left and right rotating seat 42 is connected to a pitch flip seat 44 that can flip around the X axis of the frame, and a flip seat driving component 43 for driving the pitch flip seat 44 to flip around the X axis of the frame is provided between the pitch flip seat 44 and the left and right rotating seat 42; the integrated platform 3 is located on the pitch flip seat 44. Preferably, the rotating seat driving component 41 can be a rotating cylinder, and the flip seat driving component 43 can be a flip cylinder.

[0049] like Figure 3As shown, a release component 11 is provided at the bottom of the material holding tank 1, which can effectively prevent the molded solidified layer from being damaged during the peeling process and ensure the printing quality of the molded solidified layer. Preferably, the release component 11 is a release film, a release glass, etc.

[0050] Furthermore, the 3D printing optical-mechanical system 2 is DMD or LCD or LCOS or MicroLED or the like.

[0051] like Figure 1 , 2 As shown in Figures 7 and 8, in order to accurately position and print accurately, the frame is also provided with a positioning detection mechanism 6 for assisting in positioning the relative position of the 3D printing optical machine system 2 and the integrated carrier 3. Preferably, the positioning detection mechanism 6 is a CCD. Before the printing process of each layer and each surface, the CCD works to identify the corresponding molding part of the molding surface 32. The 3D printing optical machine system 2 can first observe the corresponding molding part with light that is insensitive to the material, and can also emit a specific pattern to compare the existing pattern of the molding part to obtain the positioning error. Then, the 3D printing optical machine system 2 offsets the exposure pattern according to the positioning error to ensure that the pattern of the 3D printing optical machine system 2 is accurately irradiated on the corresponding molding part of the molding surface 32, so as to ensure accurate printing of each layer.

[0052] like Figure 2 , 7 As shown, the positioning detection mechanism 6 is arranged below the material holding tank 1 and located on one side of the optical path of the 3D printing optical system 2. A spectroscopic reflector 7 is provided on the frame and located on the optical path of the 3D printing optical system 2. The spectroscopic reflector 7 is used to make the optical paths of the positioning detection mechanism 6 and the 3D printing optical system 2 conjugately imaged with the molding surface 32.

[0053] like Figure 1-7 As shown, the present invention provides a printing method for a 3D printing integrated manufacturing device, wherein the printing method uses the 3D printing integrated manufacturing device as described above, and comprises the following steps:

[0054] S1, driving the integrated platform 3 to move up and down relative to the material holding tank 1 by the platform driving mechanism 5, so that a layer thickness gap of a formed and solidified layer exists between a forming portion of a forming surface 32 on the integrated platform 3 and the inner bottom of the material holding tank 1;

[0055] S2, using the 3D printing optical machine system 2 to observe the molding part to be integrated with light that is insensitive to the material, determine the exposure position, and then generate an image by the exposure wavelength and irradiate the material in the material holding tank 1 to obtain a molding solidified layer, and the molding solidified layer is attached to one of the molding parts of the molding surface 32;

[0056] S3, driving the integrated stage 3 to move relative to the material holding tank 1 through the printing switching driving mechanism 4, thereby switching the other molding part of the molding surface 32 to form a molding solidified layer by light curing the material attached to the material holding tank 1 in the working state;

[0057] S3, repeat the above steps S1-S3 until the molding solidified layer continuously attached to the molding surface 32 accumulates to form a 3D component. The printing method of the present invention adopts the above 3D printing integrated manufacturing device, and the printing method can complete the construction of different surface models of the integrated carrier, that is, the different working surfaces of the 3D component can be integrated and printed at one time, and it also has the characteristics of high printing efficiency and simple printing.

Claims

1. A 3D printing integrated manufacturing device, characterized in that include: frame; A material holding tank (1), wherein the material holding tank (1) is located on the frame; A 3D printing optical machine system (2), the 3D printing optical machine system (2) being used to generate an image and irradiate the material in the material holding tank (1) to obtain a formed solidified layer; An integrated carrier (3), the integrated carrier (3) being located above the material holding tank (1), the integrated carrier (3) comprising a carrier body (31), the carrier body (31) being provided with a molding surface (32) for realizing multi-angle printing during the printing process; A printing switching drive mechanism (4), the printing switching drive mechanism (4) being located on the frame and used to drive the integrated carrier (3) to move relative to the material holding tank (1), thereby switching the corresponding molding part of the molding surface (32) to form a molding solidified layer by light curing the material attached to the material holding tank (1) in the working state; A carrier driving mechanism (5) is located on the frame and is used to drive the integrated carrier (3) to move up and down relative to the material holding tank (1), thereby allowing the molding solidification layer continuously attached to the molding surface (32) to accumulate to form a 3D component.

2. A 3D printing integrated manufacturing device according to claim 1, characterized in that The platform driving mechanism (5) comprises a platform driving motor (51) arranged on a frame, the motor shaft of the platform driving motor (51) is movably connected to a platform transmission screw (52) extending along the Z-axis direction of the frame, the platform transmission screw (52) is slidably connected to a platform sliding seat (53) capable of sliding along the Z-axis direction of the frame, and the printing switching driving mechanism (4) is located between the platform sliding seat (53) and the integrated platform (3).

3. A 3D printing integrated manufacturing device according to claim 2, characterized in that The printing switching drive mechanism (4) comprises a left and right rotating seat (42) arranged on a platform sliding seat (53); a rotating seat driving assembly (41) for driving the left and right rotating seat (42) to rotate around the Y axis of the frame is arranged between the left and right rotating seat (42) and the platform sliding seat (53); a pitch flip seat (44) capable of flipping around the X axis of the frame is connected to the left and right rotating seat (42); a flip seat driving assembly (43) for driving the pitch flip seat (44) to flip around the X axis of the frame is arranged between the pitch flip seat (44) and the left and right rotating seat (42); and the integrated platform (3) is located on the pitch flip seat (44).

4. A 3D printing integrated manufacturing device according to claim 1, characterized in that A release component (11) is provided at the bottom of the material holding tank (1).

5. A 3D printing integrated manufacturing device according to claim 1, characterized in that The 3D printing optical machine system (2) is DMD or LCD or LCOS or MicroLED.

6. A 3D printing integrated manufacturing device according to any one of claims 1 to 5, characterized in that The frame is also provided with a positioning detection mechanism (6) for assisting in positioning the relative position of the 3D printing optical machine system (2) and the integrated carrier (3).

7. A 3D printing integrated manufacturing device according to claim 6, characterized in that The positioning detection mechanism (6) is arranged below the material holding tank (1) and on one side of the optical path of the 3D printing optical machine system (2); a beam splitter reflector (7) is arranged on the frame and on the optical path of the 3D printing optical machine system (2); the beam splitter reflector (7) is used to make the optical paths of the positioning detection mechanism (6) and the 3D printing optical machine system (2) conjugate with the molding surface (32) for imaging.

8. A 3D printing integrated manufacturing device according to claim 6, characterized in that The positioning detection mechanism (6) is a CCD.

9. A printing method for a 3D printing integrated manufacturing device, the printing method using a 3D printing integrated manufacturing device as claimed in any one of claims 1 to 8, characterized in that The steps include: S1, driving the integrated carrier (3) to move up and down relative to the material holding tank (1) through the carrier driving mechanism (5), so that a layer thickness spacing of a formed and solidified layer is formed between one of the forming parts of the forming surface (32) on the integrated carrier (3) and the inner bottom of the material holding tank (1); S2, generating an image through a 3D printing optical machine system (2) and irradiating the material in the material holding tank (1) to obtain a molded solidified layer, and the molded solidified layer is attached to one of the molding parts of the molding surface (32); S3, driving the integrated carrier (3) to move relative to the material holding tank (1) through the printing switching drive mechanism (4), thereby switching the other molding part of the molding surface (32) to form a molding solidified layer by light curing the material attached to the material holding tank (1) in the working state; S3, repeating the above steps S1-S3 until the molding solidified layer continuously attached to the molding surface (32) accumulates to form a 3D component.

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