CN115195115A - Spiral motion continuous type photocuring 3D printing device - Google Patents

Spiral motion continuous type photocuring 3D printing device Download PDF

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Publication number
CN115195115A
CN115195115A CN202210512811.4A CN202210512811A CN115195115A CN 115195115 A CN115195115 A CN 115195115A CN 202210512811 A CN202210512811 A CN 202210512811A CN 115195115 A CN115195115 A CN 115195115A
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China
Prior art keywords
printing platform
printing
platform
continuous type
fixed
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Granted
Application number
CN202210512811.4A
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Chinese (zh)
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CN115195115B (en
Inventor
宋瑞宏
赵洪晨
钱虎
史文杰
刘少君
王永成
陆靖涛
王小倩
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Changzhou University
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Changzhou University
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Publication of CN115195115A publication Critical patent/CN115195115A/en
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Publication of CN115195115B publication Critical patent/CN115195115B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/255Enclosures for the building material, e.g. powder containers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/227Driving means
    • B29C64/232Driving means for motion along the axis orthogonal to the plane of a layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/227Driving means
    • B29C64/241Driving means for rotary motion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/245Platforms or substrates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00Apparatus for additive manufacturing; Details thereof or accessories therefor

Abstract

The invention relates to a spiral motion continuous photocuring 3D printing device which is provided with a rack and a working table plate fixed on the rack, wherein a resin tank for containing liquid resin is fixed on the working table plate, a printing platform is arranged right above the resin tank, the upper plane of the printing platform is a horizontal plane, and the lower plane of the printing platform is an inclined plane with an inclination angle of 5-10 degrees; a projection device coaxial with the printing platform is arranged in the machine frame below the printing platform; and a screw rod for driving the printing platform to do spiral lifting motion is arranged above the printing platform. According to the invention, the screw rod drives the printing platform to make spiral lifting motion, and the characteristic that the bottom surface of the printing platform is an inclined surface is utilized, compared with the conventional vertical lifting motion of the printing platform, the resin flowability can be improved, the resin is filled into the bottom surface of the printing platform more quickly, and the continuous printing is realized, so that the printing efficiency is improved.

Description

Spiral motion continuous type photocuring 3D printing device
Technical Field
The invention relates to the technical field of 3D printing, in particular to a spiral motion continuous photocuring 3D printing device.
Background
Photocuring 3D printing has been widely used in a number of fields such as medicine, electronics, artificial intelligence, as a rapid prototyping technology that appears earlier and develops more maturity. Continuous photocuring 3D printing is a new type of manufacturing technology that has appeared in recent years, especially continuous liquid level manufacturing technology (CLIP), the basic principle is to utilize the effect of oxygen inhibition, use transparent and air permeable teflon film as the bottom of the resin tank, for light and oxygen to pass through, oxygen is in contact with the liquid resin at the bottom of the resin tank, because oxygen can hinder the curing process, so a region that can not be cured is formed at the bottom of the resin tank, which is called as "dead zone", and ultraviolet can still penetrate through the dead zone, curing is continued above, because of the existence of the dead zone, the cured resin can not adhere to the bottom of the resin tank, and can rise rapidly and continuously, thus realizing continuous printing.
When the existing structure is used for normal printing, after one layer is solidified, the printing platform is lifted for a certain distance and then is lowered, so that resin is filled in a fully flowing mode, and the printing efficiency is low.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects in the prior art, the invention provides a spiral motion continuous type photocuring 3D printing device which can ensure the continuous flow of resin and improve the printing efficiency,
the technical scheme adopted by the invention for solving the technical problem is as follows: a spiral motion continuous photocuring 3D printing device comprises a rack and a working table plate fixed on the rack, wherein a resin tank for containing liquid resin is fixed on the working table plate, a printing platform is arranged right above the resin tank, the upper plane of the printing platform is a horizontal plane, and the lower plane of the printing platform is an inclined plane with an inclination angle of 5-10 degrees; a projection device coaxial with the printing platform is arranged in the machine frame below the printing platform; and a screw rod for driving the printing platform to do spiral lifting motion is arranged above the printing platform.
Specifically speaking, the frame rear side be fixed with the lift regulating plate, adjustable the installing motor fixed block on the lift regulating plate, driving motor and screw-nut are installed to the last interval of motor fixed block, driving motor passes through drive mechanism transmission with screw-nut and is connected, the lead screw upper end is connected with the screw-nut transmission.
Furthermore, in order to ensure the stable transmission of the screw rod, a supporting block is adjustably mounted on the lifting adjusting plate below the motor fixing block, and a supporting nut in transmission fit with the screw rod is fixed on the supporting block.
In order to be convenient to assemble and disassemble, the printing platform is fixedly connected with the lower end of the screw rod through a connector.
Preferably, the printing platform is circular, and the inclination angle of the lower plane of the printing platform is 7 degrees.
The invention has the beneficial effects that: according to the invention, the screw rod drives the printing platform to make spiral lifting motion, and the characteristic that the bottom surface of the printing platform is an inclined surface is utilized, compared with the conventional vertical lifting motion of the printing platform, the resin flowability can be improved, the resin is filled into the bottom surface of the printing platform more quickly, and continuous printing is realized, so that the printing efficiency is improved.
Drawings
The invention is further illustrated by the following examples in conjunction with the drawings.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the mounting structure of the screw rod of the present invention.
Fig. 3 is a schematic diagram of the printing state of the present invention.
In the figure: 1. the printing machine comprises a frame, 2 parts of a working table plate, 3 parts of a resin tank, 4 parts of a printing platform, 5 parts of a projection device, 6 parts of a screw rod, 7 parts of a lifting adjusting plate, 8 parts of a motor fixing block, 9 parts of a driving motor, 10 parts of a screw rod nut, 11 parts of a transmission mechanism, 12 parts of a supporting block, 13 parts of a supporting nut, 14 parts of a connector, 15 parts of a driving belt wheel, 16 parts of a driven belt wheel, 17 parts of a transmission belt, 18 parts of a basal layer and 19 parts of a printing piece.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams each illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1 and 2, the spiral motion continuous type photocuring 3D printing device comprises a frame 1 and a work table 2 fixed on the frame 1, wherein a resin tank 3 for containing liquid resin is fixed on the work table 2, a printing platform 4 is arranged right above the resin tank 3, and a projection device 5 coaxial with the printing platform 4 is arranged in the frame 1 below the printing platform 4; the printing platform 4 is circular, the upper plane of the printing platform 4 is a horizontal plane, and the lower plane of the printing platform 4 is an inclined plane with an inclination angle of 7 degrees; and a screw rod 6 for driving the printing platform 4 to do spiral lifting motion is arranged above the printing platform 4.
The rear side of the rack 1 is fixed with a lifting adjusting plate 7, the upper end of the lifting adjusting plate 7 is adjustably provided with a motor fixing block 8, the middle of the lifting adjusting plate 7 is adjustably provided with a supporting block 12, and a supporting nut 13 is fixed on the supporting block 12.
A driving motor 9 and a lead screw nut 10 are installed on a motor fixing block 8 at intervals, the driving motor 9 is in transmission connection with the lead screw nut 10 through a transmission mechanism 11, the transmission mechanism 11 comprises a driving belt pulley 15 installed on a motor shaft of the driving motor 9 and a driven belt pulley 16 installed at the upper end of the lead screw nut 10, a transmission belt 17 is connected between the driving belt pulley 15 and the driven belt pulley 16, double-row angular contact ball bearings and thrust ball bearings are arranged in the motor fixing block 8 from top to bottom, an outer ring of the lead screw nut 10 is rotatably installed in the motor fixing block 8 through the bearing support, and the upper end of the lead screw nut 10 extends out of the upper plane of the motor fixing block 8 and is fixed with an inner hole of the driven belt pulley 16.
The upper end of the screw rod 6 is in transmission connection with a screw rod nut 10, the middle part of the screw rod 6 is in transmission fit with a supporting nut 13, and the lower end of the screw rod 6 is fixedly connected with the printing platform 4 through a connector 14.
As shown in fig. 3, when the operation is started, the driving motor 9 operates, the lead screw nut 10 is driven to rotate by the transmission mechanism 11, the lead screw nut 10 makes the printing platform 4 descend to the position to be cured through transmission cooperation with the lead screw 6, at this time, the projection device 5 operates, the printed cross section information of the base layer 18 is projected onto the printing platform 4, the curing of the base layer 18 is performed, because the bottom surface of the printing platform 4 is an inclined surface and has a certain inclination angle with the bottom of the resin tank 3, the curing time required by the base layer 18 is longer, even multiple times of curing is required, until the base layer 18 and the bottom of the resin tank 3 on the bottom surface of the printing platform 4 are in a mutually parallel state, then the curing of the printed matter 19 starts, at this time, the projection device 5 stops operating, the driving motor 9 drives the printing platform 4 to spirally ascend, and when the printing platform 4 rotates 360 degrees, the driving motor stops (at this time, the printing platform 4 and the printing platform before ascending are in a state in a vertical direction, the ascending direction is an overlapped, the ascending distance is set as S, the single-layer curing thickness of the printed matter 19 is t, S = t), the driving motor 9 stops operating, the projection device 5 operates, and projects the cross section information of the printed matter 19 onto the base layer 19 is cured matter on the single-layer 19; and then the printing platform 4 is screwed up for a circle, the projection device 5 works to cure the next layer of the printed piece 19, and the steps are repeated to finish continuous printing.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (5)

1. A spiral motion continuous type photocuring 3D printing device is provided with a rack (1) and a working table plate (2) fixed on the rack (1), and is characterized in that: a resin tank (3) for containing liquid resin is fixed on the working table plate (2), a printing platform (4) is arranged right above the resin tank (3), the upper plane of the printing platform (4) is a horizontal plane, and the lower plane of the printing platform (4) is an inclined plane with an inclination angle of 5-10 degrees; a projection device (5) which is coaxial with the printing platform (4) is arranged in the rack (1) below the printing platform (4); and a screw rod (6) for driving the printing platform (4) to do spiral lifting motion is arranged above the printing platform (4).
2. The spiral motion continuous type photocuring 3D printing apparatus according to claim 1, wherein: frame (1) rear side be fixed with lift adjusting plate (7), adjustable the installing motor fixed block (8) on lift adjusting plate (7), motor fixed block (8) are gone up and are installed driving motor (9) and screw-nut (10) apart from each other, driving motor (9) are connected through drive mechanism (11) transmission with screw-nut (10), lead screw (6) upper end is connected with screw-nut (10) transmission.
3. The spiral motion continuous type photocuring 3D printing apparatus according to claim 2, wherein: the lifting adjusting plate (7) below the motor fixing block (8) is adjustably provided with a supporting block (12), and a supporting nut (13) in transmission fit with the screw rod (6) is fixed on the supporting block (12).
4. The spiral motion continuous type photocuring 3D printing apparatus according to claim 1, wherein: the printing platform (4) is fixedly connected with the lower end of the screw rod (6) through a connector (14).
5. The spiral motion continuous type photocuring 3D printing apparatus according to claim 1, wherein: the printing platform (4) is circular, and the inclination angle of the lower plane of the printing platform (4) is 7 degrees.
CN202210512811.4A 2022-05-12 2022-05-12 Spiral motion continuous type photocuring 3D printing device Active CN115195115B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210512811.4A CN115195115B (en) 2022-05-12 2022-05-12 Spiral motion continuous type photocuring 3D printing device

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Application Number Priority Date Filing Date Title
CN202210512811.4A CN115195115B (en) 2022-05-12 2022-05-12 Spiral motion continuous type photocuring 3D printing device

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CN115195115B CN115195115B (en) 2024-02-20

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103921443A (en) * 2014-04-10 2014-07-16 苏州锐发打印技术有限公司 Three-dimensional (3D) printing method and 3D printing system
KR20160039045A (en) * 2014-09-30 2016-04-08 주식회사 덴티스 3d printer with improved tilting structure
CN105499568A (en) * 2015-12-17 2016-04-20 龙泉市金宏瓷业有限公司 Continuously supplementing 3D printer and printing method thereof
CN208881183U (en) * 2018-10-10 2019-05-21 深圳市润林景观设计工程有限公司 3D printer
CN208881179U (en) * 2018-08-11 2019-05-21 福建国锐中科光电有限公司 A kind of resin storage tank of 3D printing equipment and solidification plummer
CN110539483A (en) * 2019-10-15 2019-12-06 广州捷和电子科技有限公司 High-speed continuous 3D printer based on ventilative super lubricating film
CN110625940A (en) * 2018-06-21 2019-12-31 中南大学 Quick photocuring DLP 3D printing apparatus
CN110789118A (en) * 2019-11-13 2020-02-14 青岛尤尼科技有限公司 3D printer
CN112873838A (en) * 2021-02-02 2021-06-01 中山大学 Biological ink printing condition screening platform and screening method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103921443A (en) * 2014-04-10 2014-07-16 苏州锐发打印技术有限公司 Three-dimensional (3D) printing method and 3D printing system
KR20160039045A (en) * 2014-09-30 2016-04-08 주식회사 덴티스 3d printer with improved tilting structure
CN105499568A (en) * 2015-12-17 2016-04-20 龙泉市金宏瓷业有限公司 Continuously supplementing 3D printer and printing method thereof
CN110625940A (en) * 2018-06-21 2019-12-31 中南大学 Quick photocuring DLP 3D printing apparatus
CN208881179U (en) * 2018-08-11 2019-05-21 福建国锐中科光电有限公司 A kind of resin storage tank of 3D printing equipment and solidification plummer
CN208881183U (en) * 2018-10-10 2019-05-21 深圳市润林景观设计工程有限公司 3D printer
CN110539483A (en) * 2019-10-15 2019-12-06 广州捷和电子科技有限公司 High-speed continuous 3D printer based on ventilative super lubricating film
CN110789118A (en) * 2019-11-13 2020-02-14 青岛尤尼科技有限公司 3D printer
CN112873838A (en) * 2021-02-02 2021-06-01 中山大学 Biological ink printing condition screening platform and screening method

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