TW201912384A - 3D Printer - Google Patents

Abstract

A 3D printer has at least one 3 freedom mechanism platform but used for SLA process (Stereo Lithography Apparatus) and also used for FDM process (Fused Deposition Modeling). The 3 freedom mechanism platform has a moving head. The 3D printer further has a forming module connected with the moving head. The forming module has a forming platform and a photopolymerization module which has a photopolymerization container and a light source.

Description

Three-dimensional composite printer

The present invention relates to a three-dimensional composite printer having at least a three-degree-of-freedom machine but for an SLA process, but also being replaced with an FDM process.

At present, 3D printers mainly have two technologies, one is FDM (Fused Deposition Modeling), and the other is SLA (Stereo Lithography Apparatus).

The advantage of FDM is that the operating environment is clean and safe, the material is non-toxic, and the overall equipment is simple. However, the machine needs a three-degree-of-freedom machine, the forming speed is not fast, and the precision is low.

The advantage of SLA is that the machine is simple, only one degree of freedom machine is needed, the forming speed can be faster, and the density and surface smoothness are good, but the SLA system needs precision equipment for liquid operation, and the photosensitive resin is required for the working environment. It is slightly toxic, pollutes the environment, and has an allergic reaction to some human skin. The resin material is expensive, but the strength, rigidity and heat resistance after molding are limited, which is not conducive to long-term preservation.

Since the FDM and SLA molding processes are completely different, users who purchase FDM and SLA will purchase both FDM and SLA 3D printers. However, such expenses, or the space occupied, have increased a lot, so there is a need for improvement.

The main object of the present invention is to provide a three-dimensional composite printer with two processes of FDM (Fused Deposition Modeling) and SLA (Stereo Lithography Apparatus).

In order to achieve the above object, the present invention comprises an at least three-degree-of-freedom machine. In the present specification, at least three degrees of freedom machine means a machine capable of providing three or more degrees of freedom, for example, providing four degrees of freedom. The machine is also a minimum of three degrees of freedom machine as described in this specification. The at least three-degree-of-freedom machine includes a moving head, and the three-dimensional composite printer further includes a molding module coupled to the moving head, wherein the molding module includes a molding platform; and a light The polymerization module includes a photopolymerization container and a light source member. With the above configuration, the molding platform is moved up and down by the moving head, so that the molding platform can enter the photopolymerization container and leave the photopolymerization container.

The forming module further includes a forming platform engaging member coupled to the forming platform, and the forming platform engaging member is capable of connecting the moving head or disengaging the moving head.

According to an embodiment of the invention, the three-dimensional composite printer further includes an extrusion module, wherein the extrusion module comprises an extrusion module head and an extrusion module joint. The extrusion die joint can be coupled to the moving head when the forming platform engaging member is disengaged from the moving head, and the forming platform engaging member can be coupled when the extrusion module engaging member is disengaged from the moving head Move the head.

In order to enable the reviewing committee to better understand the technical contents of the present invention, specific embodiments are described below.

As shown in Fig. 1, a side view of a first embodiment of a three-dimensional composite printer 1 of the present invention is used as an FDM. The three-dimensional composite printer 1 shown in FIG. 1 is a generally seen FDM three-dimensional composite printer 1 including an at least three-degree-of-freedom machine 10, wherein at least three degrees of freedom machine 10 includes a moving head 11 So that the moving head 11 can perform at least three degrees of freedom movement. Since the present invention does not improve the three-degree-of-freedom machine of the three-dimensional composite printer, or how the computer program controls the precision of the moving head more precisely, the three-degree-of-freedom machine will not be described again.

The moving head 11 of the three-dimensional composite printer 1 is controlled by three sets of moving rods, and is used in the industry as Delta Type. Since the Delta Type is a conventional technology, it will not be described here. .

The FDM three-dimensional composite printer 1 is equipped with an extrusion module 50, wherein the extrusion module 50 includes an extrusion module head 51 and an extrusion module joint 52. The extrusion module engaging member 52 is coupled to the moving head 11 and can be easily detached from the moving head 11. The connecting mechanism between the extrusion module engaging member 52 and the moving head 11 has a relatively large number of mechanisms, such as by screwing. Quick release structure, concave and convex combination mechanism, clamping mechanism, magnetic absorption mechanism and so on. Since the present invention does not improve the extrusion module joint 52, nor does it improve the extrusion module head 51 how to thermally melt the material, the extrusion module head 51 and the extrusion module joint 52 are not described herein. Detailed construction.

2 is a side view of a second embodiment of the three-dimensional composite printer 1a of the present invention, which is also used as FDM. Unlike the first embodiment, the three-dimensional composite printer 1a is used in the industry as "Cartesian Type". (Cartesian/orthogonal coordinate type), that is, the structure of at least the three-degree-of-freedom machine 10a is different from the Delta Type. The "Cartesian Type" has several forms, and some mechanisms allow the moving head 11 to perform three degrees of freedom. Move, and the printing platform (not shown, placing the items being printed) is still, some are printing the platform for a degree of freedom (譬 Z-axis movement as above), while moving the head for two freedoms Degree of movement (such as the movement of the XY plane). Since the "Cartesian Type" is already a conventional technique, it will not be described here.

The same FDM three-dimensional composite printer 1a is matched with an extrusion module 50, wherein the extrusion module 50 includes an extrusion module head 51 and an extrusion module joint 52, and the extrusion module joint 52 The moving head 11 is connected.

Referring to FIG. 3, a side view of the first embodiment of the novel three-dimensional composite printer 1 is used as an SLA.

The at least three-degree-of-freedom machine 10 of the three-dimensional composite printer 1 is the same as that of FIG. 1. FIG. 3 differs from FIG. 1 in that the extrusion module 50 of FIG. 1 is replaced with the molding module 20 of FIG. And with the photopolymerization module 30 to enable the SLA process. The molding module 20 includes a molding platform 21 and a molding platform engaging member 22, and is coupled to the moving head 11 through the molding platform engaging member 22. In the present embodiment, the connecting mechanism between the molding platform engaging member 22 and the moving head 11 should be The connection mechanism between the extrusion module engaging member 52 and the moving head 11 is the same or similar, so that the molding platform engaging member 22 is convenient to exchange with the extrusion module engaging member 52, so that the molding platform engaging member 22 is convenient for the user. It is convenient to connect or detach with the moving head 11. It is suggested that the connecting mechanism between the forming platform engaging member 22 and the moving head 11 adopts a general quick release mechanism.

Referring to FIG. 5, in combination with the molding module 20, a photopolymerization module 30 is disposed under at least three degrees of freedom machine 10, and the photopolymerization module 30 mainly includes a photopolymerization container 31 and a light source member 35. In the embodiment, the photopolymerization module 30 further includes a transparent isolation layer 32, a magnetic retention ring 33 (a type of quick release mechanism), and a photopolymerization base 34. The transparent separator 32 is placed under the photopolymerization container 31, and the transparent separator 32 is bonded to the photopolymerization container 31 through the magnetic fixing ring 33, so that a photosensitive resin (not shown) can be placed in the photopolymerization container 31 without leaking. The light source member 35 is disposed above the photopolymerization base 34 to provide a light source (generally using ultraviolet light, and currently some people use visible light), and the light emitted by the light source member 35 can pass through the transparent isolation layer 32 to illuminate the photosensitive resin. Show).

Please refer to FIG. 4. The difference between FIG. 4 and FIG. 3 is that FIG. 4 adopts the “Cartesian Type” three-dimensional composite printer 1a of FIG. 2, and the same three-dimensional composite printer 1a is also matched with the molding module 20 and The photopolymerization module 30 is capable of performing an SLA process. Since the SLA process is already a well-known technology, it will not be repeated here.

The focus of the present invention is that in the past, the FDM three-dimensional printer was used for the FDM process, and that the extrusion module was replaced because of different injection materials, but all were FDM processes. The FDM process requires a three-degree-of-freedom machine, while the SLA process requires only one degree of freedom (up and down movement). The design and control is much simpler, so the SLA process has not been used for a three-degree-of-freedom machine. Therefore, the FDM process and the SLA process have been separate machines for a long time, and no one machine has been used together. The focus of the present invention is to replace the originally used FDM process to the SLA process, or to replace the originally used SLA process to the FDM process, and only need to replace the "forming module 20 and the extrusion module 50" to the "photopolymerization module 30". 』 Yes, and vice versa.

It should be noted that the above is only an embodiment, and is not limited to the embodiment. Therefore, those who do not depart from the basic structure of the present invention should be bound by the scope of the patent, and the scope of the patent application shall prevail.

1‧‧‧Three-dimensional composite printer

1a‧‧‧3D composite printer

10‧‧‧At least three degrees of freedom machine

11‧‧‧Mobile head

20‧‧‧Molding module

21‧‧‧ molding platform

22‧‧‧Forming platform joints

30‧‧‧Photopolymerization module

31‧‧‧Photopolymerization container

32‧‧‧Transparent barrier

33‧‧‧Magnetic retaining ring

34‧‧‧Photopolymerization base

35‧‧‧Light source parts

50‧‧‧Extrusion module

51‧‧‧Extrusion module head

52‧‧‧Extrusion module joints

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side view showing a first embodiment of a three-dimensional composite printer of the present invention, which is used as FDM (Fused Deposition Modeling). Fig. 2 is a side view showing a second embodiment of the three-dimensional composite printer of the present invention, which is used as FDM (Fused Deposition Modeling). Fig. 3 is a side view showing a first embodiment of the three-dimensional composite printer of the present invention, which is used as an SLA (Stereo Lithography Apparatus). Fig. 4 is a side view showing a second embodiment of the three-dimensional composite printer of the present invention, which is used as an SLA (Stereo Lithography Apparatus). FIG. 5 is an exploded perspective view of a molding module and a photopolymerization module according to the present invention.

Claims (9)

A three-dimensional composite printer includes an at least three-degree-of-freedom machine, wherein the at least three-degree-of-freedom machine includes a moving head, wherein the three-dimensional composite printer further comprises: a molding module, Connecting to the moving head, wherein the molding module comprises a molding platform; and a photopolymerization module comprising a photopolymerization container and a light source member; and by the above configuration, the molding platform moves up and down by the moving head The molding platform can enter the photopolymerization container and leave the photopolymerization container. The three-dimensional composite printer of claim 1, wherein the molding module further comprises a molding platform engaging member coupled to the molding platform, and the molding platform engaging member is coupled to the moving head With the above configuration, the molding platform engaging member can be connected to or detached from the moving head. The three-dimensional composite printer as claimed in claim 2, wherein the three-dimensional composite printer further comprises an extrusion module, wherein the extrusion module comprises an extrusion module head and an extrusion a module joint member, the extrusion module joint member being connectable to or detachable from the moving head; and by the above configuration, the extrusion module joint member when the forming platform joint member is disengaged from the moving head The moving head can be coupled, and the forming platform engaging member can be coupled to the moving head when the extrusion module engaging member is disengaged from the moving head. The three-dimensional composite printer of claim 2, wherein the photopolymerization module further comprises a transparent isolation layer disposed under the photopolymerization container and above the light source member. The three-dimensional composite printer of claim 4, wherein the photopolymerization module further comprises a photopolymerization base, the photopolymerization base is disposed under the photopolymerization container, and the photopolymerization base is Combined with the light source member. The three-dimensional composite printer according to claim 5, wherein the photopolymerization module further comprises a quick release mechanism, wherein the quick release mechanism is configured to facilitate the combination of the photopolymerization base and the photopolymerization container. Or separate. The three-dimensional composite printer of claim 6, wherein the quick release mechanism is a magnetic retention ring, and the magnetic retention ring is used to facilitate the photopolymerization base and the photopolymerization container. Combine or separate. A three-dimensional composite printer as described in claim 1 or 2, wherein the three-dimensional composite printer is a Delta Type. A three-dimensional composite printer as described in claim 1 or 2, wherein the three-dimensional composite printer is a Cartesian type.