TW201703989A - 3D printing platform - Google Patents

Abstract

A 3D printing platform adapted to disposed at a moving mechanism and adapted for a 3D printing object forming thereon is provided. The 3D printing platform includes a contact portion. When the 3D printing object is formed on the 3D printing platform, a position of the 3D printing object is lower than a position of the contact portion in gravity direction, the 3D printing object contacts the contact portion directly, and material of the contact portion is similar to material of the 3D printing object.

Description

Three-dimensional printing stage

The present invention relates to a stage, and more particularly to a three-dimensional printing stage.

With the development of technology, 3D printing technology and Additive Manufacturing (AM) technology have become one of the most important development technologies. These technologies are one of the rapid prototyping technologies. They can directly produce the desired finished product directly by the user-designed digital model file, and the finished product is almost a three-dimensional entity of any shape.

In general, the additive manufacturing technique converts design data of a 3D model constructed using software such as computer aided design (CAD) into a plurality of thin (quasi-two-dimensional) cross-section layers that are continuously stacked. At the same time, many technical means for forming a plurality of thin cross-section layers have also been proposed. For example, the printing module of the printing device can generally move along the XY plane above the pedestal according to the space coordinate XYZ constructed by the design data of the 3D model, so that the construction material forms the correct cross-sectional layer shape. The deposited build material can then be naturally hardened or cured by heating or illumination of the source to form the desired cross-sectional layer. Therefore, by moving the printing module layer by layer along the axial direction Z, a plurality of cross-sectional layers can be gradually stacked along the Z-axis, thereby forming the three-dimensional object in the layer-by-layer curing state.

The existing three-dimensional printing technology has various molding mechanisms according to various models and materials, such as liquid resin, slurry and the like, and constructs a three-dimensional entity of a desired shape by stacking layers by layer, wherein light Stereolithography (SLA) and Digital Light Processing (DLP) have high precision and better surface quality. For example, the three-dimensional printing stage is adapted to be immersed in a liquid molding material contained in a accommodating groove, and the light source module illuminates the liquid molding material under the accommodating groove, The liquid molding material on the XY plane is solidified and stacked on the three-dimensional printing stage of the printing module. In this way, by moving the three-dimensional printing stage by the moving mechanism and moving layer by layer along the axial direction Z, the liquid molding material can be solidified layer by layer and stacked into a three-dimensional printing object.

However, since the printed three-dimensional printed object is located below the gravity direction of the three-dimensional printing stage, during the printing process, when the three-dimensional printing object reaches a certain weight, the three-dimensional printing object may be because of the three-dimensional printing object Excessively heavy and separated from the 3D printing stage, the printing could not be completed. The current solution is to print a hollow three-dimensional printed object, while reducing the weight of the three-dimensional printed object, but the structural strength of the three-dimensional printed object itself is also reduced.

The present invention provides a three-dimensional printing stage that allows three-dimensionally printed articles formed thereon to be less susceptible to detachment and to have better attachment.

A three-dimensional printing stage of the present invention is adapted to be disposed on a moving mechanism and adapted to form a three-dimensional printing article on the three-dimensional printing stage. The three-dimensional printing stage comprises a contact portion, wherein when the three-dimensional printing object is formed on the three-dimensional printing stage, the three-dimensional printing object is in a position below the gravity direction of the contact portion, the three-dimensional printing object directly contacts the contact portion, and contacts The material of the part is close to the material of the 3D printed object.

In an embodiment of the invention, the contact portion is made of a polymer material, and the polymer material comprises polymethyl methacrylate (PMMA), polycarbonate (PC), polyvinyl chloride (PVC), and polyvinyl fluoride ( PVF) or polyvinyl acetate (PVAc).

In an embodiment of the invention, the material of the contact portion comprises a combination of a metal material and a polymer material, wherein the metal material accounts for less than 60% by volume of the entire contact portion, and the polymer material comprises polymethyl ester ( PMMA), polycarbonate (PC), polyvinyl chloride (PVC), polyvinyl fluoride (PVF) or polyvinyl acetate (PVAc). Metal materials include iron, aluminum, zinc or titanium.

In an embodiment of the invention, the material of the contact portion comprises a combination of a ceramic material and a polymer material, wherein the ceramic material accounts for less than 60% by volume of the entire contact portion, and the polymer material comprises polymethyl ester. (PMMA), polycarbonate (PC), polyvinyl chloride (PVC), polyvinyl fluoride (PVF) or polyvinyl acetate (PVAc), ceramic materials including zirconium dioxide, aluminum oxide, zinc oxide or cerium oxide.

In an embodiment of the invention, the three-dimensional printing stage further includes a base disposed on the moving mechanism, and the contact portion is detachably disposed on the base.

In an embodiment of the invention, the contact portion is detachably disposed on the pedestal by a water-soluble adhesive layer, and the water-soluble adhesive layer comprises polyvinyl alcohol (PVA), polyethylene oxide (PEO), and carboxy. Methylcellulose (CMC), hydroxypropyl methylcellulose (HPMC) or gum arabic.

In an embodiment of the invention, one of the base and the contact portion includes a sliding slot, and the other of the base and the contact portion includes a slider.

In an embodiment of the invention, the base and the contact portion respectively comprise corresponding two buckle portions.

In an embodiment of the invention, the base includes a first magnetic unit, and the contact portion includes a second magnetic unit that is magnetically attracted to the first magnetic unit.

In an embodiment of the invention, the three-dimensional printing stage is detachably disposed on the moving mechanism, and the contact portion of the three-dimensional printing stage is integrated with the base, and the material of the contact portion is the same as the material of the base. .

Based on the above, the three-dimensional printing stage of the present invention is designed to be close to the three-dimensional printing object by the material of the contact portion that will be in direct contact with the three-dimensional printing object, and the material having the same property has better connectivity. The characteristics are such that the three-dimensional printed object can be inverted and formed on the three-dimensional printing stage. In this way, although the three-dimensional printed object is less supported during the printing process than the three-dimensional printing position of the loading position in the direction of gravity, the contact portion of the three-dimensional printing object and the three-dimensional printing stage is The better connectivity between the three-dimensional printed objects can be fixed to the three-dimensional printing stage during the printing process, and does not fall off easily. The contact portion of the three-dimensional printing stage of the present invention may be detachably disposed on the pedestal. After the printing is completed, the contact portion is separated from the pedestal with the three-dimensional printing object, or the contact portion is integrated with the pedestal. The material of the entire three-dimensional printing stage is the same. After the printing is completed, the entire three-dimensional printing stage is detached from the moving mechanism. The printed three-dimensional printed object may have a support portion for supporting the body, and the three-dimensional printed object may be connected to the contact portion of the three-dimensional printing stage through the support portion, because the connection between the support portion and the body is thinner. It is easy to separate. After the printing is completed, when the user pulls the support portion of the three-dimensional printing object away from the body, the contact portion of the three-dimensional printing stage is separated from the body of the three-dimensional printing object by the supporting portion. The final finished product (that is, the body of the three-dimensional printed object).

The above described features and advantages of the invention will be apparent from the following description.

1 is a schematic diagram of a three-dimensional printing stage in accordance with an embodiment of the present invention. Referring to FIG. 1, the three-dimensional printing stage 100 of the present embodiment is suitable for use in a three-dimensional printing apparatus such as a Stereolithography (SLA) and a Digital Light Processing (DLP). The three-dimensional printing device includes a light source 30, a receiving groove 20, a moving mechanism 10, and a three-dimensional printing stage 100. The accommodating groove 20 is filled with a liquid molding material, and the three-dimensional printing stage 100 is disposed on the moving mechanism 10, and the three-dimensional printing stage 100 is adapted to be immersed in the liquid molding material contained in the accommodating groove 20, and the light source module The liquid molding material is irradiated under the accommodating groove 20 so that the liquid molding material on the XY plane is solidified and stacked on the three-dimensional printing stage 100. Thus, by moving the three-dimensional printing stage 100 by the moving mechanism 10 and moving layer by layer along the axial direction Z, the liquid molding material can be solidified layer by layer and stacked into a three-dimensional printing object 40.

In the embodiment, the three-dimensional printing stage 100 includes a base 110 and a contact portion 120. The base 110 of the three-dimensional printing stage 100 is detachably disposed on the moving mechanism 10. In more detail, the base 110 and the moving mechanism 10 respectively have corresponding sliding grooves and slide rails, so that the base 110 can be pumped. From the moving mechanism 10. Further, the contact portion 120 is detachably provided to the base 110. In this embodiment, the contact portion 120 is detachably disposed on the susceptor 110 by a water-soluble adhesive layer 130. The water-soluble adhesive layer 130 includes polyvinyl alcohol (PVA), polyethylene oxide (PEO), and carboxymethyl. Cellulose (CMC), hydroxypropyl methylcellulose (HPMC) or gum arabic. Since the water-soluble adhesive layer 130 is dissolved in water, if the three-dimensional printing stage 100 is immersed in water, the water-soluble adhesive layer 130 between the susceptor 110 and the contact portion 120 is dissolved, and the susceptor 110 and the contact portion 120 are dissolved. Can be separated.

Generally, if three-dimensional printing is performed by means of Stereolithography (SLA) or Digital Light Processing (DLP), as shown in FIG. 1, the three-dimensional printing object 40 is in the printing process. The medium-sized printing object 40 may be out of the three-dimensional printing stage 100 because it is too heavy to be in a lower position in the direction of gravity than the three-dimensional printing stage, and the printing may not be completed.

In order to avoid the above problem, in the present embodiment, the material of the three-dimensional printing stage 100 is designed to be close to the three-dimensional printing object 40 by the material of the contact portion 120 which will directly contact the three-dimensional printing object 40 (that is, The material of the contact portion 120 is the same or close to the material of the resin or the slurry in the accommodating groove 40, and the three-dimensional printing object 40 can be stably inverted by utilizing the characteristics of better connectivity between the materials of the same nature. Formed on the three-dimensional printing stage 100. That is, since the three-dimensional printing object 40 has better connectivity with the contact portion 120 of the three-dimensional printing stage 100, even if the three-dimensional printing object 40 itself is a solid structure, the three-dimensional printing object 40 is in the printing process. It can still be fixed to the three-dimensional printing stage 100 and will not fall off easily.

In this embodiment, the material of the contact portion 120 and the three-dimensional printed object 40 may be a polymer material, and the polymer material includes polymethyl methacrylate (PMMA), polycarbonate (PC), polyvinyl chloride (PVC), and poly. Fluorine (PVF) or polyvinyl acetate (PVAc), of course, the type of polymer material is not limited by this. Alternatively, in other embodiments, the material of the contact portion 120 and the three-dimensional printing object 40 may also be a composite material. For example, the material of the contact portion 120 and the three-dimensional printing object 40 includes a combination of a metal material and a polymer material. The metal material accounts for less than 60% by volume of the entire contact portion 120, and the polymer material includes polymethyl methacrylate (PMMA), polycarbonate (PC), polyvinyl chloride (PVC), polyvinyl fluoride (PVF) or Polyvinyl acetate (PVAc), metal materials including iron, aluminum, zinc or titanium. Alternatively, the material of the contact portion 120 includes a combination of a ceramic material and a polymer material. The volume percentage of the ceramic material in the entire contact portion 120 is less than 60%, and the polymer material includes polymethyl methacrylate (PMMA) and polycarbonate ( PC), polyvinyl chloride (PVC), polyvinyl fluoride (PVF) or polyvinyl acetate (PVAc), ceramic materials including zirconium dioxide, aluminum oxide, zinc oxide or cerium oxide. Of course, the types of materials of the contact portion 120 and the three-dimensional printed object 40 are not limited thereto.

It is worth mentioning that, since the contact portion 120 of the three-dimensional printing stage 100 in the embodiment is detachably disposed on the base 110, after the printing is completed, the user can first print the three-dimensional printing stage 100 together. The three-dimensional printing object 40 is pulled away from the moving mechanism 10, and the three-dimensional printing stage 100 and the three-dimensional printing object 40 are immersed in water, so that the water-soluble adhesive layer 130 is dissolved in water, the contact portion 120 and the three-dimensional printing The objects 40 will be separated from the base 110 together. Generally, the three-dimensional printing object 40 has a body 42 and a supporting portion 44 for supporting the body 42. The three-dimensional printing object 40 is connected to the contact portion 120 of the three-dimensional printing stage 100 through the supporting portion 44, due to the supporting portion 44 and The connection between the bodies 42 is thin and easy to separate. After the printing is completed, the user can pull the support portion 44 of the three-dimensional printed object 40 away from the body 42 to three-dimensionally print the contact portion 44 of the stage 100 and three-dimensionally. The support portion 44 of the printed article 40 is separated from the body 42 of the three-dimensional printed article 40 to obtain the final finished product (i.e., the body 42 of the three-dimensional printed article 40).

Of course, only one of the three-dimensional printing stages 100 is described above, and the form of the three-dimensional printing stage 100 is not limited to the above. 2 through 5 are schematic views of various three-dimensional printing stages, respectively, in accordance with other embodiments of the present invention. Referring to FIG. 2, the main difference between the three-dimensional printing stage 200 of FIG. 2 and the three-dimensional printing stage 100 of FIG. 1 is that, in FIG. 1, the base 110 and the contact portion 120 are made of a water-soluble adhesive layer 130. Removably connected. In this embodiment, the base 210 includes a sliding slot, and the contact portion 220 includes a slider. The contact portion 220 is slidably disposed on the base 210 for loading or withdrawing from the base 210. Of course, in other embodiments, the base 210 may include a slider, and the contact portion 220 includes a sliding slot that is slidably loaded or detached.

Referring to FIG. 3 , the main difference between the three-dimensional printing stage 300 of FIG. 3 and the three-dimensional printing stage 100 of FIG. 1 is that, in the embodiment, the base 310 includes a first magnetic unit 312 and a contact portion 320. A second magnetic unit 322 that is magnetically attracted to the first magnetic unit 312 is included. That is to say, the base 310 and the contact portion 320 are fixed by magnetic attraction. In this embodiment, the first magnetic unit 312 and the second magnetic unit 322 may be magnetically opposite magnets, or one of the first magnetic unit 312 and the second magnetic unit 322 is a magnet, and the other Those are metals that will be attracted to each other.

Referring to FIG. 4, the main difference between the three-dimensional printing stage 400 of FIG. 4 and the three-dimensional printing stage 100 of FIG. 1 is that, in the embodiment, the base 410 includes a pivotable arm portion 411, and the arm portion 411 And the contact portion 420 respectively includes two corresponding locking portions 412, 422, the arm portion 411 can be pivoted relative to the contact portion 420 to the position of FIG. 4, and the two fastening portions 412, 422 can be engaged together to fix the base The relative position of the seat 410 and the contact portion 420.

Referring to FIG. 5 , the main difference between the three-dimensional printing stage 500 of FIG. 5 and the three-dimensional printing stage 100 of FIG. 1 is that, in FIG. 1 , the material of the base 110 may be metal, and the material of the contact part 120 is based on Depending on the material of the desired three-dimensional print object 40, the base 110 and the contact portion 120 are two separate components. In this embodiment, the materials of the entire three-dimensional printing stage 500 are the same, that is, the material of the contact portion 520 is the same as that of the other parts of the three-dimensional printing stage 500 (base 510), and the entire three-dimensional printing is performed. The material of the stage 500 is the same as the material of the desired three-dimensional printed object 40. The contact portion 520 of the three-dimensional printing stage 500 is integral with the base 510 instead of two elements. In the present embodiment, the entire three-dimensional printing stage 500 is disposable, that is, after the printing is completed, the entire three-dimensional printing stage 500 will be accompanied by the three-dimensional printing object 40 (shown in FIG. 1). After being detached from the moving mechanism 10 (shown in FIG. 1 ), after the support portion 44 of the three-dimensional printing object 40 is detached from the body 42 , the entire three-dimensional printing stage 500 and the supporting portion 44 of the three-dimensional printing object 40 can be They are discarded together.

In summary, the three-dimensional printing stage of the present invention is designed to be close to the three-dimensional printing object by the material of the contact portion that will directly contact the three-dimensional printing object, and the material of the same nature is preferably used. The connectivity feature allows the 3D printed object to be inverted and molded on the 3D printing stage. In this way, although the three-dimensional printed object is less supported during the printing process than the three-dimensional printing position of the loading position in the direction of gravity, the contact portion of the three-dimensional printing object and the three-dimensional printing stage is The better connectivity between the three-dimensional printed objects can be fixed to the three-dimensional printing stage during the printing process, and does not fall off easily. The contact portion of the three-dimensional printing stage of the present invention may be detachably disposed on the pedestal. After the printing is completed, the contact portion is separated from the pedestal with the three-dimensional printing object, or the contact portion is integrated with the pedestal. The material of the entire three-dimensional printing stage is the same. After the printing is completed, the entire three-dimensional printing stage is detached from the moving mechanism. The printed three-dimensional printed object may have a support portion for supporting the body, and the three-dimensional printed object may be connected to the contact portion of the three-dimensional printing stage through the support portion, because the connection between the support portion and the body is thinner. It is easy to separate. After the printing is completed, when the user pulls the support portion of the three-dimensional printing object away from the body, the contact portion of the three-dimensional printing stage is separated from the body of the three-dimensional printing object by the supporting portion. The final finished product (that is, the body of the three-dimensional printed object).

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

10‧‧‧Mobile agencies
20‧‧‧ accommodating slots
30‧‧‧Light source
40‧‧‧3D printed objects
42‧‧‧Ontology
44‧‧‧Support
100, 200, 300, 400, 500‧‧‧3D printing stage
110, 210, 310, 410, 510‧‧‧ base
120, 220, 320, 420, 520‧ ‧ contact
130‧‧‧Water-soluble adhesive layer
212‧‧‧Chute
222‧‧‧ Slider
312‧‧‧First magnetic unit
322‧‧‧Second magnetic unit
411‧‧‧arms
412, 422‧‧ ‧ buckle

1 is a schematic diagram of a three-dimensional printing stage applied to three-dimensional printing according to an embodiment of the invention. 2 through 5 are schematic views of various three-dimensional printing stages, respectively, in accordance with other embodiments of the present invention.

10‧‧‧Mobile agencies

20‧‧‧ accommodating slots

30‧‧‧Light source

40‧‧‧3D printed objects

42‧‧‧Ontology

44‧‧‧Support

100‧‧‧3D printing stage

110‧‧‧Base

120‧‧‧Contacts

130‧‧‧Water-soluble adhesive layer

Claims (10)

A three-dimensional printing stage adapted to be disposed on a moving mechanism and adapted to form a three-dimensional printing object on the three-dimensional printing stage, the three-dimensional printing stage comprising: a contact portion, wherein the three-dimensional column When the printed matter is formed on the three-dimensional printing stage, the three-dimensional printing object is lower than the contact portion in the gravity direction, the three-dimensional printing object directly contacts the contact portion, and the material of the contact portion is close to the three-dimensional column The material of the printed matter. The three-dimensional printing stage according to claim 1, wherein the contact portion is made of a polymer material, and the polymer material comprises polymethyl methacrylate (PMMA), polycarbonate (PC), and polyvinyl chloride. (PVC), polyvinyl fluoride (PVF) or polyvinyl acetate (PVAc). The three-dimensional printing stage according to claim 1, wherein the material of the contact portion comprises a combination of a metal material and a polymer material, wherein the metal material accounts for less than 60% by volume of the contact portion. The polymer material includes polymethyl acrylate (PMMA), polycarbonate (PC), polyvinyl chloride (PVC), polyvinyl fluoride (PVF) or polyvinyl acetate (PVAc), and the metal material includes iron, aluminum, Zinc or titanium. The three-dimensional printing stage according to claim 1, wherein the material of the contact portion comprises a combination of a ceramic material and a polymer material, wherein the ceramic material accounts for less than 60% by volume of the entire contact portion. The polymer material comprises polymethyl acrylate (PMMA), polycarbonate (PC), polyvinyl chloride (PVC), polyvinyl fluoride (PVF) or polyvinyl acetate (PVAc), the ceramic material including zirconium dioxide, Alumina, zinc oxide or cerium oxide. The three-dimensional printing stage according to claim 1, further comprising: a base disposed on the moving mechanism, and the contact portion is detachably disposed on the base. The three-dimensional printing stage according to claim 5, wherein the contact portion is detachably disposed on the base by a water-soluble adhesive layer comprising polyvinyl alcohol (PVA) , polyethylene oxide (PEO), carboxymethyl cellulose (CMC), hydroxypropyl methylcellulose (HPMC) or gum arabic. The three-dimensional printing stage of claim 5, wherein one of the base and the contact portion includes a sliding slot, and the other of the base and the contact portion includes a slider. The three-dimensional printing stage according to claim 5, wherein the base and the contact portion respectively comprise corresponding two buckle portions. The three-dimensional printing stage according to claim 5, wherein the base comprises a first magnetic unit, and the contact portion comprises a second magnetic unit that is magnetically attracted to the first magnetic unit. The three-dimensional printing stage according to claim 5, wherein the three-dimensional printing stage is detachably disposed on the moving mechanism, and the contact portion of the three-dimensional printing stage is integrated with the base. The material of the contact portion is the same as the material of the base.