CN216635410U

CN216635410U - Photocuring 3D print platform and photocuring 3D printer

Info

Publication number: CN216635410U
Application number: CN202220044243.5U
Authority: CN
Inventors: 李湘勤; 门戈阳
Original assignee: Shaoguan University
Current assignee: Shaoguan University
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-05-31
Anticipated expiration: 2032-01-07

Abstract

The utility model relates to a photocuring 3D printing platform and a photocuring 3D printer. The utility model discloses a photocuring 3D printing platform which comprises: the magnetic circuit comprises a base, a magnet layer and a spring steel sheet; the base and the magnet layer are fixed in a magnetic attraction manner; the magnet layer is an integrally formed magnet block and is fixed on the lower surface of the base; the spring steel sheet is fixed on the lower surface of the magnet layer in a magnetic attraction mode. According to the photocuring 3D printing platform, the spring steel sheet which can be greatly bent is used as the adsorption surface of a printed piece, and the printed piece can be taken down without damage without the help of other tools. Meanwhile, the printing platform has the advantages of simple structure, easiness in processing, low cost, easiness in maintenance, convenience in rapid disassembly and assembly, and convenience in cleaning.

Description

Photocuring 3D print platform and photocuring 3D printer

Technical Field

The utility model relates to the technical field of 3D printing, in particular to a photocuring 3D printing platform.

Background

The photocuring 3D printing has high precision, low cost and good surface effect after molding, can meet the application requirements of many fields, such as aerospace, building, medical treatment, mold manufacturing and the like, is more and more emphasized by people, and becomes an important branch of the 3D printing technology. The photocuring 3D printing technology utilizes laser spots or ultraviolet exposure patterns to be projected on a receiving platform immersed in resin, and the resin is polymerized in a specific area of the receiving platform to form a resin cured product.

The existing photocuring 3D printing platform is generally a rigid metal platform, the metal platform is lack of flexibility, the whole metal platform needs to be taken down after printing is finished, then a printing piece on the metal platform is shoveled down by a shovel, or after waiting for a certain time for some special materials, the printing piece is naturally stripped due to different expansion coefficients of the metal material and the resin material. The common photocuring 3D printing platform is difficult to peel off a printed piece after printing is finished, and the printed piece and the printing platform surface are easily damaged by peeling with a scraper knife. At the same time, sharp knives risk personal injury to the user. In addition, the printing platform is complex to disassemble, and resin stained on the platform is difficult to clean in the printing process.

SUMMERY OF THE UTILITY MODEL

Based on the technical problems, the photocuring 3D printing platform is simple in structure, low in cost, easy to use and clean, and can be used for rapidly and nondestructively stripping a printed piece, so that the problems that the printed piece is difficult to strip after printing is finished, the printed piece and the table top of the printing platform are easily damaged by stripping with a scraper knife, personal injury can be caused to a user, the printing platform is complex to disassemble, and resin on the platform is difficult to clean in the printing process are solved.

A photocuring 3D print platform, comprising: the device comprises a base, a magnet layer and a spring steel sheet; the base and the magnet layer are fixed in a magnetic attraction manner; the magnet layer is an integrally formed magnet block and is fixed on the lower surface of the base; the spring steel sheet is fixed on the lower surface of the magnet layer in a magnetic attraction mode.

Compared with a rigid printing platform, the photocuring 3D printing platform has the advantages that the spring steel sheet has good elasticity, cannot generate plastic deformation when being bent greatly under stress, has good fatigue resistance, and is favorable for repeated use. The printing piece can be taken down without damage without other tools by adopting the greatly bent spring steel sheet as the adsorption surface of the printing piece. The spring steel sheet simple structure, easy, the with low costs of manufacturing can be equipped with a plurality of spring steel sheets to a photocuring printer, can use repeatedly in turn, improve printing efficiency. In addition, the photocuring 3D printing platform adopts the integrally formed magnet block to connect the base and the spring steel sheet, and has the advantages of simple structure, low cost, convenience in cleaning, convenience and quickness in disassembly and assembly, simplicity in use and simplicity in maintenance.

Further, the thickness of the magnet layer is 5mm or more. The magnet layer thickness is more than 5mm to provide sufficient magnetic attraction magnetism and inhale on the base, also can avoid printing a overweight dropping at the printing in-process, lead to printing the failure. Meanwhile, the magnet layer with a certain thickness can effectively isolate the contact between the base and the resin in the printing process, so that the resin is prevented from being infected by the base. The magnet layer is connected with the base through magnetism, and the disassembly is convenient. When clearing up print platform, only need clear up the magnet layer of easily dismantling, the position need not additionally to dismantle the clearance to it owing to there is the resin can not be infected with to the isolation on magnet layer above the base. And the magnet layer adopts integrated into one piece's magnet piece, and its simple structure, workable, with low costs can be equipped with a plurality of magnet layers simultaneously, and alternate used repeatedly improves and prints efficiency.

Further, the thickness of the spring steel sheet is 0.2-1 mm. The spring steel sheet is too small in thickness and is easy to generate plastic deformation during bending, so that the surface of the spring steel sheet is uneven after the spring steel sheet is used, and the spring steel sheet cannot be reused. The too large thickness of the spring steel sheet can cause the too strong rigidity of the spring steel sheet, is not easy to bend and is not beneficial to the stripping of a printing piece. The thickness of 0.2-1mm can ensure that the elastic thin sheet layer has good strength, elasticity and toughness at the same time.

Further, the lower surface of the base, the upper surface and the lower surface of the magnet layer, and the upper surface and the lower surface of the spring steel sheet are all planes. The lower surface of the base on the lower surface of the base, the upper surface and the lower surface of the magnet layer, the upper surface and the lower surface of the spring steel sheet are planes, so that the magnetic attraction connection surfaces can be increased to be matched with the magnet layer, and the attraction is more stable. Simultaneously, when spring steel sheet upper surface and lower surface all were the plane, upper and lower surface all are applicable to and adsorb or as the resin adsorbed layer with the magnet layer, need not to distinguish convenient to use to upper and lower surface in the use.

Further, the upper surface of the magnet layer covers the lower surface of the base, that is, the area of the plate surface of the upper surface of the magnet layer is not smaller than the plate surface area of the lower surface of the base. Preferably, magnet layer upper surface with the lower surface area of base equals, the lower surface area on magnet layer equals with the upper surface area of spring steel sheet, practices thrift the printer space when making to provide enough mutual fixed magnetic attraction between base, magnet layer and the spring steel sheet, and is comparatively pleasing to the eye moreover.

Further, the edge of the spring steel sheet is provided with at least one lug. The edge of the elastic sheet layer is provided with the lug, so that after printing is finished conveniently, the elastic sheet layer is pushed by the lug to enable the elastic sheet layer and the magnet layer to generate relative displacement, and therefore the spring steel sheet and a printed piece can be taken down together conveniently and then are subjected to subsequent treatment.

Further, the fixing part is further included and fixed on the upper surface of the base. Make things convenient for print platform and printing arm to be connected.

Furthermore, the base is made of a magnetic metal material. The magnetic attraction type metal material can be carbon steel, high-chromium cast iron, iron-based stainless steel and other metal materials with magnetic attraction property, and the metal materials have good strength and rigidity and are favorable for being fixed with the fixing piece.

Further, the utility model also provides a photocuring 3D printer which comprises the photocuring 3D printing platform.

Further, the photocuring 3D printer still includes resin groove and light source module, the resin groove is located photocuring 3D print platform's below for hold photosensitive resin, the light source is used for solidifying photosensitive resin.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model adopts the greatly bent spring steel sheet as the adsorption surface of the printing piece, and can realize the nondestructive removal of the printing piece without other tools. The spring steel sheet has good elasticity, can not generate plastic deformation when being greatly bent under stress, has good fatigue resistance and is beneficial to the repeated use of the spring steel sheet. Meanwhile, the integrated magnet layer with a certain thickness is adopted to provide adsorption force, the magnet layer with a certain thickness can effectively isolate the contact between the base and resin in the printing process, the resin is not easy to be infected with the base, the base does not need to be disassembled when the machine is cleaned, and the magnet block which is easy to disassemble only needs to be disassembled for cleaning. Magnet and spring steel sheet simple structure, workable, with low costs, a 3D printer can be equipped with a plurality of magnet pieces and spring steel sheet simultaneously, and alternate used repeatedly realizes printing in succession, improves and prints efficiency. In addition, the photocuring 3D printing platform provided by the utility model is simple in structure, low in cost, easy to use, easy to clean and simple to maintain, and can rapidly strip photocuring printed parts of the printed parts without damage.

For a better understanding and practice, the utility model is described in detail below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of a photocuring 3D printing platform provided in embodiment 1 of the present invention;

fig. 2 is a schematic perspective view of a photocuring 3D printing platform according to an embodiment of example 1 of the present invention;

fig. 3 is a schematic perspective view of a photocuring 3D printing platform according to another embodiment of example 1 of the present invention;

fig. 4 is a schematic structural diagram of a photocuring 3D printer according to embodiment 2 of the present invention.

Symbolic illustration in the drawings:

1-a fixing piece; 2-a base; 3-a magnet layer; 4-a magnetic elastic sheet layer; 50-photocuring the 3D printing platform; 51-resin tank; 52-light source.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, should not be construed as limiting the present invention. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Fig. 1 is a schematic structural diagram of a photocuring 3D printing platform provided in embodiment 1 of the present invention, fig. 2 is a schematic structural diagram of a photocuring 3D printing platform according to an embodiment of the present invention, and fig. 3 is a schematic structural diagram of a photocuring 3D printing platform according to another embodiment of embodiment 1 of the present invention.

Embodiment 1 provides a photocuring 3D printing platform. As shown in fig. 1-3, the 3D printing platform includes a base 2, a magnet layer 3, and a spring steel sheet 4.

The magnet layer 3 is fixed on the lower surface of the base 2 in a magnetic attraction mode, the magnet layer 3 is an integrally formed magnet block made of magnetic materials, and the thickness is preferably more than 5 mm. Preferably, the area of the upper surface of the magnet layer 3 is equal to the area of the lower surface of the base 2, and the upper surface of the magnet layer 3 covers the lower surface of the base 2. More than 5mm of magnet layer thickness in this embodiment to provide sufficient magnetic attraction, avoid printing a overweight and dropping at the printing in-process, lead to printing the failure. Meanwhile, the magnet layer with a certain thickness can effectively isolate the contact between the base and the resin in the printing process, so that the resin is prevented from being infected by the base.

The spring steel sheet 4 is fixed on the lower surface of the magnet layer 3 in a magnetic attraction manner, the spring steel sheet 4 is made of spring steel material, the thickness of the spring steel sheet is 0.2-1mm, and at least one lug is arranged on the edge. Preferably, the area of the plate surface of the spring steel plate 4 is equal to the area of the plate surface of the magnet layer 3, and the upper surface of the spring steel plate 4 covers the lower surface of the magnet layer 3. In the embodiment, the thickness of the spring steel sheet is 0.2-1mm, and the spring steel sheet is too small, so that plastic deformation is easily generated during bending, and the surface of the spring steel sheet is not flat after use and cannot be reused. The too large thickness of the spring steel sheet can cause the too strong rigidity of the spring steel sheet, is not easy to bend and is not beneficial to the stripping of a printing piece.

In this embodiment, the lower surface of the base, the upper surface and the lower surface of the magnet layer, and the upper surface and the lower surface of the magnetic sheet layer are all planar. Can increase the magnetic attraction connection surface and the magnetic layer connection conjunction, the adsorption is more stable. Simultaneously, when spring steel sheet upper surface and lower surface all were the plane, upper and lower surface all is applicable to and adsorbs or regard as the resin adsorbed layer with the magnet layer, need not to distinguish convenient to use about the surface in the use.

As a specific embodiment, the photocuring 3D printing platform may further include a fixing member 1, where the fixing member 1 is fixed on the upper surface of the base 2, and preferably, the fixing position is a central position of the upper surface of the base 2.

As a specific embodiment, the fixing member 1, the base 2, the magnet layer 3, and the spring steel sheet 4 of the photo-curing 3D printing platform may be configured into various shapes according to different requirements. As shown in fig. 2-3, in one embodiment, the photo-curing 3D printing platform is configured to be rectangular parallelepiped, the base 2 and the magnet layer 3 are rectangular parallelepiped, and the spring steel sheet 4 is rectangular thin sheet; in another embodiment, the photo-curing 3D printing platform is cylindrical, the base 2 and the magnet layer 3 are cylindrical, and the spring steel sheet 4 is a circular thin sheet to adapt to different resin tanks or printers.

When the photocuring 3D printing platform provided by the embodiment is used, the fixing piece is installed on the printing arm of the photocuring 3D printer, the spring steel sheet is adsorbed on the lower surface of the magnet layer, the photocuring 3D printer moves the printing platform to a specified position, and illumination is started to polymerize and cure photosensitive resin in the specified area, so that a first layer structure of a printed piece is generated; moving the printing platform by a layer thickness distance, starting illumination, and generating a second layer structure of the printed piece; this is repeated until the entire print is completed. After the printing piece is printed, the convex lug on the spring steel sheet is pushed, so that the steel sheet and the magnet block generate relative displacement, and the printing piece and the spring steel sheet are taken down from the printer together. Because the spring steel sheet has good elasticity and toughness, the user can hold the edge of the spring steel sheet with both hands, slowly bends the spring steel sheet in the direction far away from the printing piece, and along with the bending of the spring steel sheet, the bottom of the printing piece is gradually separated from the spring steel sheet, so that the peeling of the printing piece is realized. In the process of stripping the printed part, the scraper knife is not needed, so that the printed part and the printing platform are not damaged, and the personal safety of a user is ensured.

In this embodiment, the magnet layer and the magnetically attracted steel sheet layer may be provided in plural numbers at the same time. In the printing process, the magnetic steel sheet can be directly replaced, continuous printing is realized, and the next printed piece can be printed without waiting for the printed piece to be taken down. In the same way, in the printing process, when the printing platform needs to be cleaned, the magnet layer can be directly replaced, and the printing platform does not need to be detached or the printing platform needs to be cleaned up to be printed next time, so that continuous printing is realized. In addition, the spring steel sheet has small volume, light weight, higher strength and toughness, can be repeatedly used, and can be subjected to aging, cleaning or heating treatment together with the spring steel sheet and a printed piece during post-treatment.

Example 2

The embodiment provides a photocuring 3D printer, which comprises a photocuring 3D printing platform 50, a resin groove 51 and a light source 52. The resin tank 51 is disposed below the printing platform 50 in the present embodiment, and the light source 52 is disposed below the resin tank 51. In other embodiments: the light source 52 may also be disposed above the printing platform.

The printing platform 50 is the photocuring 3D printing platform provided in embodiment 1, and when in use, the photocuring 3D printing platform provided in embodiment 1 is mounted on a printing arm of a photocuring 3D printer to perform printing.

The photocuring 3D printer provided by the embodiment of the utility model has the advantages of simple structure, low cost, simplicity in use, easiness in cleaning and capability of rapidly and nondestructively peeling the photocuring printing piece of the printing piece due to the use of the photocuring 3D printing platform provided by the embodiment 1 of the utility model. After printing the completion, need not with the help of instruments such as spiller, just can not harm and will print a peeling off, not only can avoid damaging printing and print platform, can guarantee user's personal safety simultaneously.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, to those skilled in the art, changes and modifications may be made without departing from the spirit of the present invention, and it is intended that the present invention encompass such changes and modifications.

Claims

1. A photocuring 3D print platform, comprising: the device comprises a base, a magnet layer and a spring steel sheet; the base and the magnet layer are fixed in a magnetic attraction manner; the magnet layer is an integrally formed magnet block and is fixed on the lower surface of the base; the spring steel sheet is fixed on the lower surface of the magnet layer in a magnetic attraction mode.

2. The photocuring 3D printing platform of claim 1, wherein: the thickness of the magnet layer is more than 5 mm.

3. The photocuring 3D printing platform of claim 1, wherein: the thickness of the spring steel sheet is 0.2-1 mm.

4. The photocuring 3D printing platform of claim 1, wherein: the lower surface of the base, the upper surface and the lower surface of the magnet layer and the upper surface and the lower surface of the spring steel sheet are planes.

5. The photocuring 3D printing platform of claim 1, wherein: the upper surface of the magnet layer covers the lower surface of the base.

6. The photocuring 3D printing platform of claim 1, wherein: and lugs are arranged at the edges of the spring steel sheets.

7. The photocuring 3D printing platform of claim 1, wherein: the fixing piece is fixed on the upper surface of the base.

8. The photocuring 3D printing platform of claim 7, wherein: the base is made of a magnetic metal material.

9. The utility model provides a photocuring 3D printer which characterized in that: comprising a photo-curing 3D printing platform according to any of claims 1 to 8.

10. The photocuring 3D printer of claim 9, wherein: the photocuring 3D printer further comprises a resin groove and a light source, wherein the resin groove is located below the photocuring 3D printing platform and used for containing photosensitive resin, and the light source is used for curing the photosensitive resin.