CN106671407B - Print platform's rigid leveling mechanism in 3D printer - Google Patents
Print platform's rigid leveling mechanism in 3D printer Download PDFInfo
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- CN106671407B CN106671407B CN201710059522.2A CN201710059522A CN106671407B CN 106671407 B CN106671407 B CN 106671407B CN 201710059522 A CN201710059522 A CN 201710059522A CN 106671407 B CN106671407 B CN 106671407B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
When the rigid leveling mechanism of the printing platform in the 3D printer needs to be leveled, the printing platform is firstly taken down, the small screws and the locking nuts are unscrewed, the three leveling screws are properly adjusted, the base plate is enabled to be relatively parallel to the printing head, the small screws and the locking nuts are screwed, then the printing platform is mutually attracted by the upper magnet and the lower magnet and placed on the base plate, and the printing platform and the printing head can be relatively parallel. In the leveling process, the base plate cannot be vibrated and shaken when the leveling screw is screwed, so that the leveling instrument can work quickly. After the base plate is leveled, in the process of screwing the small screw, the base plate is basically not misplaced relative to the leveling screw, and after the small screw is screwed, the base plate can be ensured to be relatively parallel to the printing head. The leveling mechanism of the printing platform in the 3D printer is improved, vibration and shaking do not exist in the printing process of the printing platform after the leveling and locking, the dimensional accuracy and the surface smoothness of a printed product are improved, and the leveling mechanism is convenient to operate, economical, practical, simple in structure and reasonable in design.
Description
Technical Field
The invention belongs to the technical field of 3D printers, and particularly relates to a rigid leveling mechanism of a printing platform in a 3D printer.
Background
The core of 3D printing is to convert complex 3D shapes of a workpiece to be formed into a simple combination of 2D cross sections by slicing processing, and to directly form a 3D workpiece on computer-controlled additive manufacturing equipment according to a 3D computer-aided design (CAD) model of the workpiece. Currently, 3D printers can be divided into 5 types: 1. a photopolymerization type (SLA) forming machine in the container, which uses laser beams to solidify and form the liquid photosensitive resin; 2. a powder bed sintering/melting (SLS/SLM/EBM) forming machine for forming by sintering/melting powder material with laser beam/electron beam; 3. a sheet Lamination (LOM) forming machine for forming a sheet by using a laser beam, a nicking tool or ultrasonic waves; 4. a binder injection type (3DP) forming machine, which uses a nozzle to inject the binder to form the powder; 5. a material extrusion molding (FDM) machine extrudes molten plastic by a spray head for molding. The most popular in the market is a material extrusion molding machine (FDM), also called a fused deposition forming machine, and a 3D printer based on such a principle generally adopts a soft leveling mode of a screw and a spring for a printing platform, and the leveling mode has a certain degree of vibration and jitter during printing, which affects printed products, increases the size error of the products, and roughens the surface. To solve this problem, a rigid leveling method that can avoid vibration and shaking of the printing platform is required.
Disclosure of Invention
The invention mainly solves the technical problems in the prior art and provides a rigid leveling mechanism of a printing platform in a 3D printer.
The technical problem of the invention is mainly solved by the following technical scheme: a rigid leveling mechanism of a printing platform in a 3D printer comprises a fixing plate, wherein three screw holes are formed in the fixing plate, the central lines of the three screw holes are not on the same plane, leveling screws are screwed in the screw holes and are locked on the fixing plate through nuts, the end parts of thread heads of the leveling screws are arc-convex, small screw holes are formed in the centers of the leveling screws, and small screws are screwed in the small screw holes; a backing plate is arranged on the fixing plate, small screw counter bores corresponding to the three leveling screws are arranged on the backing plate, groove type gaskets are arranged at the upper and lower ports of the small screw counter bores, grooves of the groove type gaskets at the upper port face upwards, grooves of the groove type gaskets at the lower port face downwards, arc convex thread head end portions of the leveling screws are arranged in the grooves of the groove type gaskets at the lower port face in an overhead mode, arc convex type gaskets are arranged in the grooves of the groove type gaskets at the upper port face, and the small screws sequentially penetrate through the arc convex type gaskets and the groove type gaskets at the upper and lower ports of the small screw counter bores to be screwed in the small screws so as to be fixed on the leveling screws; the printing platform is characterized in that the base plate is also provided with a plurality of magnet sinking grooves, lower magnets are fixed in the magnet sinking grooves through sunk screws, the thickness of each lower magnet is smaller than the depth of each magnet sinking groove, upper magnets are fixed on the bottom surfaces of the corresponding magnet sinking grooves through the sunk screws, the sum of the thicknesses of the upper magnets and the lower magnets is slightly larger than the depth of each magnet sinking groove, the polarities of the corresponding upper magnets and the corresponding lower magnets are opposite, and the printing platform is arranged on the base plate through mutual attraction of the upper magnets and the lower magnets.
Preferably, the connecting lines of the centers of the three screw holes form an acute triangle, and preferably the connecting lines of the centers of the three screw holes form a regular triangle, wherein one side is parallel to the long side of the backing plate.
In the use process, when leveling is needed, the printing platform is taken down, the small screws and the locking nuts are unscrewed, the three leveling screws are properly adjusted, the base plate is enabled to be relatively parallel to the printing head, the small screws and the locking nuts are screwed, and then the printing platform is placed on the base plate through mutual attraction of the upper magnet and the lower magnet, so that the printing platform and the printing head can be relatively parallel. In the leveling process, the end part of the arc convex thread head of the leveling screw is arranged in the groove of the groove type gasket at the lower port of the counter bore of the small screw, so that the base plate cannot be vibrated and shaken when the leveling screw is screwed, and the leveling instrument can work quickly. After the base plate is leveled, in the process of screwing the small screw, because the arc convex type gasket is arranged in the groove of the groove type gasket at the upper port of the counter bore of the small screw, the base plate is basically not misplaced relative to the leveling screw, and the base plate can be ensured to be relatively parallel to the printing head after the small screw is screwed.
The leveling mechanism of the printing platform in the 3D printer is improved, vibration and shaking do not exist in the printing process of the printing platform after leveling and locking, the dimensional accuracy and the surface smoothness of a printed product are improved, and the leveling operation is convenient, economic and practical, so that the leveling mechanism has the characteristics of simple structure, reasonable design and the like.
Drawings
FIG. 1 is a schematic view of an assembly structure of the present invention;
fig. 2 is a schematic diagram of a split structure according to the present invention.
In the figure, 1-printing platform, 2-upper magnet, 3-countersunk head screw, 4-small screw, 5-arc convex gasket, 6-groove gasket, 7-lower magnet, 8-backing plate, 9-nut, 10-fixing plate, 11-leveling screw, 12-magnet sink groove, 13-small screw counter bore, 14-screw hole and 15-small screw hole.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
The embodiment is as follows: referring to fig. 1 and 2, a rigid leveling mechanism of a printing platform in a 3D printer comprises a fixing plate, wherein the fixing plate is provided with three screw holes, the central lines of the three screw holes are not on the same plane, leveling screws are screwed in the screw holes and locked on the fixing plate by nuts, the end parts of the screw heads of the leveling screws are arc convex, small screw holes are arranged at the centers of the leveling screws, and small screws are screwed in the small screw holes; a backing plate is arranged on the fixing plate, small screw counter bores corresponding to the three leveling screws are arranged on the backing plate, groove type gaskets are arranged at the upper and lower ports of the small screw counter bores, grooves of the groove type gaskets at the upper port face upwards, grooves of the groove type gaskets at the lower port face downwards, arc convex thread head end portions of the leveling screws are arranged in the grooves of the groove type gaskets at the lower port face in an overhead mode, arc convex type gaskets are arranged in the grooves of the groove type gaskets at the upper port face, and the small screws sequentially penetrate through the arc convex type gaskets and the groove type gaskets at the upper and lower ports of the small screw counter bores to be screwed in the small screws so as to be fixed on the leveling screws; the printing platform is characterized in that the base plate is also provided with a plurality of magnet sinking grooves, lower magnets are fixed in the magnet sinking grooves through sunk screws, the thickness of each lower magnet is smaller than the depth of each magnet sinking groove, upper magnets are fixed on the bottom surfaces of the corresponding magnet sinking grooves through the sunk screws, the sum of the thicknesses of the upper magnets and the lower magnets is slightly larger than the depth of each magnet sinking groove, the polarities of the corresponding upper magnets and the corresponding lower magnets are opposite, and the printing platform is arranged on the base plate through mutual attraction of the upper magnets and the lower magnets. Preferably, the connecting lines of the centers of the three screw holes form an acute triangle, and preferably the connecting lines of the centers of the three screw holes form a regular triangle, wherein one side is parallel to the long side of the backing plate.
In the use process, when leveling is needed, the printing platform is taken down, the small screws and the locking nuts are unscrewed, the three leveling screws are properly adjusted, the base plate is enabled to be relatively parallel to the printing head, the small screws and the locking nuts are screwed, and then the printing platform is placed on the base plate through mutual attraction of the upper magnet and the lower magnet, so that the printing platform and the printing head can be relatively parallel. In the leveling process, the end part of the arc convex thread head of the leveling screw is arranged in the groove of the groove type gasket at the lower port of the counter bore of the small screw, so that the base plate cannot be vibrated and shaken when the leveling screw is screwed, and the leveling instrument can work quickly. After the base plate is leveled, in the process of screwing the small screw, because the arc convex type gasket is arranged in the groove of the groove type gasket at the upper port of the counter bore of the small screw, the base plate is basically not misplaced relative to the leveling screw, and the base plate can be ensured to be relatively parallel to the printing head after the small screw is screwed.
The leveling mechanism of the printing platform in the 3D printer is improved, vibration and shaking do not exist in the printing process of the printing platform after leveling and locking, the dimensional accuracy and the surface smoothness of a printed product are improved, and the leveling operation is convenient, economic and practical, so that the leveling mechanism has the characteristics of simple structure, reasonable design and the like.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the technical solution of the present invention is not limited to the above-described embodiments, and many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (1)
1. A rigid leveling mechanism of a printing platform in a 3D printer comprises a fixing plate and is characterized in that three screw holes are formed in the fixing plate, the central lines of the three screw holes are not on the same plane, the central connecting lines of the three screw holes form a regular triangle, leveling screws are screwed in the screw holes and locked on the fixing plate through nuts, the end parts of the thread heads of the leveling screws are arc-convex, small screw holes are formed in the centers of the leveling screws, and small screws are screwed in the small screw holes; a backing plate is arranged on the fixing plate, small screw counter bores corresponding to the three leveling screws are arranged on the backing plate, groove type gaskets are arranged at the upper and lower ports of the small screw counter bores, grooves of the groove type gaskets at the upper port face upwards, grooves of the groove type gaskets at the lower port face downwards, arc convex thread head end portions of the leveling screws are arranged in the grooves of the groove type gaskets at the lower port face in an overhead mode, arc convex type gaskets are arranged in the grooves of the groove type gaskets at the upper port face, and the small screws sequentially penetrate through the arc convex type gaskets and the groove type gaskets at the upper and lower ports of the small screw counter bores to be screwed in the small screws so as to be fixed on the leveling screws; the printing platform is characterized in that the backing plate is also provided with a plurality of magnet sinking grooves, lower magnets are fixed in the magnet sinking grooves through sunk screws, the thickness of each lower magnet is smaller than the depth of the corresponding magnet sinking groove, upper magnets are fixed on the bottom surfaces of the corresponding magnet sinking grooves through the sunk screws, the sum of the thicknesses of the upper magnets and the lower magnets is slightly larger than the depth of the corresponding magnet sinking grooves, the polarities of the corresponding upper magnets and the corresponding lower magnets are opposite, and the printing platform is arranged on the backing plate through mutual attraction of the upper magnets and the lower magnets; in the use process, when leveling is needed, the printing platform is taken down, the small screws and the locking nuts are unscrewed, the three leveling screws are properly adjusted, the base plate is enabled to be relatively parallel to the printing head, the small screws and the locking nuts are screwed, and then the printing platform is placed on the base plate through mutual attraction of the upper magnet and the lower magnet, so that the printing platform and the printing head can be relatively parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710059522.2A CN106671407B (en) | 2017-01-24 | 2017-01-24 | Print platform's rigid leveling mechanism in 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710059522.2A CN106671407B (en) | 2017-01-24 | 2017-01-24 | Print platform's rigid leveling mechanism in 3D printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106671407A CN106671407A (en) | 2017-05-17 |
| CN106671407B true CN106671407B (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710059522.2A Active CN106671407B (en) | 2017-01-24 | 2017-01-24 | Print platform's rigid leveling mechanism in 3D printer |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111483137A (en) * | 2019-01-25 | 2020-08-04 | 东莞一迈智能科技有限公司 | Support 3D printer that a plurality of models were queued and were printed |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9821518B2 (en) * | 2014-08-19 | 2017-11-21 | Daniel A. Bloom | Precision platform assembly for three-dimensional printer |
| CN204263550U (en) * | 2014-12-02 | 2015-04-15 | 博纳云智（天津）科技有限公司 | A kind of 3D printer levelling gear |
| CN204725855U (en) * | 2015-04-30 | 2015-10-28 | 长沙梵天网络科技有限公司 | 3D model printer print tray plate rail height level's adjusting device and 3D printer |
| CN204773598U (en) * | 2015-05-09 | 2015-11-18 | 昆山市奇迹三维科技有限公司 | 3D printer movable type print platform |
| CN205326283U (en) * | 2015-11-25 | 2016-06-22 | 于明礼 | Quick detachable platform and levelling device combination that 3D printed |
| CN206623400U (en) * | 2017-01-24 | 2017-11-10 | 杭州喜马拉雅数码科技有限公司 | The rigid levelling gear of print platform in a kind of 3D printer |
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- 2017-01-24 CN CN201710059522.2A patent/CN106671407B/en active Active
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