CN210645941U - Feed liquid stirrer of ink-jet 3D sand mold printer - Google Patents
Feed liquid stirrer of ink-jet 3D sand mold printer Download PDFInfo
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- CN210645941U CN210645941U CN201921209467.1U CN201921209467U CN210645941U CN 210645941 U CN210645941 U CN 210645941U CN 201921209467 U CN201921209467 U CN 201921209467U CN 210645941 U CN210645941 U CN 210645941U
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Abstract
The utility model belongs to the technical field of 3D printing apparatus, especially, relate to an ink jet 3D sand printer feed liquid agitator, its characterized in that includes the feed liquid mixing storehouse, set up the driving motor who mixes the storehouse bottom at this feed liquid, be connected with this driving motor output shaft and set up the (mixing) shaft inside the feed liquid mixing storehouse, set up at least one stirring vane at this (mixing) shaft, set up the sealing device who mixes the storehouse bottom at the feed liquid, set up the discharge gate on the lateral wall of feed liquid mixing storehouse lower part, the discharge gate of shutoff on this discharge gate, the liquid feeding capillary that sets up on feed liquid mixing storehouse upper portion. The utility model is arranged near the sanding platform in the printing equipment, and occupies small space; the sand mixing effect is good, and the uniform mixing of small-particle powder and a small-amount proportioning solution can be realized; the stirring shaft adopts labyrinth seal, end face seal and axial seal to combine, prevents that the axle clearance of sand material inflow stirring shaft from damaging bearing, axle and bearing frame, long service life, and work efficiency is high.
Description
Technical Field
The utility model belongs to the technical field of 3D printing apparatus, especially, relate to an ink jet type 3D sand printer feed liquid agitator.
Background
The 3D printing technology is characterized in that a computer three-dimensional design model is used as a blueprint, special materials such as metal powder, ceramic powder, plastics, cell tissues and the like are stacked layer by layer and bonded through a software layering dispersion and numerical control forming system in a laser beam mode, a hot melting nozzle mode and the like, and finally, solid products are manufactured through stacking forming.
A SYP-1800 ink-jet type 3D printer adopts a 3DP (Three-Dimensional Printing) Printing process, and sprays a bonding material through an array type spray head group to bond the bonding material and sand grains, so that the bonding material and the sand grains are overlapped layer by layer, and the required sand mould and sand core are directly produced. Through research and development of a new 3D printing process and a new 3D printing device, the application range of the technology is expanded, the process is simplified, the cost is reduced, the printing device is practical, and the precision of printing products is improved.
As a sand mold raw material, quantitative sand powder and quantitative acidic aqueous solution are uniformly stirred, and preparation is made for sand mold printing. Some agitators at present have the phenomena of poor sealing of a stirring shaft, sand leakage, frequent maintenance, uneven stirring and the like, and the other agitator is an external independent sand mixing device which occupies a large space and has high cost.
Disclosure of Invention
The utility model aims at providing a medium sand material powder and acid solution stirring, the (mixing) shaft is sealed effectual, can realize the inkjet formula 3D sand printer feed liquid agitator of tiny particle powder and the homogeneous mixing of small amount solution.
The purpose of the utility model is realized by the following technical scheme:
the utility model discloses a feed liquid stirrer of an ink-jet 3D sand mold printer, which is characterized by comprising a feed liquid mixing bin, a driving motor arranged at the bottom of the feed liquid mixing bin, a stirring shaft connected with an output shaft of the driving motor and arranged inside the feed liquid mixing bin, at least one stirring blade arranged on the stirring shaft, a sealing device arranged at the bottom of the feed liquid mixing bin, a discharge port arranged on the side wall of the lower part of the feed liquid mixing bin, a discharge door blocked on the discharge port, and a liquid feeding capillary arranged at the upper part of the feed liquid mixing bin,
the stirring blade comprises a radial blade and an axial blade connected with the radial blade, the main blade of the radial blade is an arc-shaped blade, the upper end surface of the main blade is a spiral tangent plane, a main blade diagonal plane and a main blade bottom plane form an included angle of 50 degrees, the axial blade comprises an upper working surface, a transition surface and a lower working surface, the upper working surface is vertical to the main blade bottom plane, the lower working surface and the main blade diagonal plane form an included angle of 10 degrees,
sealing device including set up in motor shaft shoulder department and be located (mixing) shaft axial positioning terminal surface keep off the material flange, set up here and keep off in the material flange recess and be located the O type circle of (mixing) shaft axial positioning terminal surface sets up inside feed liquid mixing bunker, and is located labyrinth seal and end face seal between (mixing) shaft shoulder terminal surface and the bearing frame terminal surface set up axial seal between (mixing) shaft and the bearing frame shaft hole.
The end face seal is a graphite packing, is arranged in a groove on the end face of the shaft shoulder of the stirring shaft and is pressed on the end face of the bearing seat.
The axial seal is a graphite packing, and is tightly pressed in a gap between the stirring shaft and the shaft hole of the bearing seat.
The bottom surface of the feed liquid mixing bin is 15 degrees from the horizontal direction0-350And setting an angle.
The discharge door inboard be equipped with the sprue, this sprue inboard is the cambered surface, this cambered surface when the discharge door is closed with feed liquid mixing bin inner wall cambered surface unanimous.
The at least one stirring blade is two stirring blades which are symmetrically arranged by taking the stirring shaft as a center.
The utility model has the advantages that:
the utility model discloses an ink-jet 3D sand mould printer feed liquid agitator sets up near the sanding platform in the printing apparatus, and occupation space is little; the sand mixing effect is good, and the uniform mixing of small-particle powder and a small-amount proportioning solution can be realized; the stirring shaft adopts labyrinth seal, end face seal and axial seal to combine, prevents that the axle clearance of sand material inflow stirring shaft from damaging bearing, axle and bearing frame, long service life, and work efficiency is high.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a view of the present invention from direction K of fig. 1.
Fig. 3 is a schematic structural view of the stirring blade of the present invention.
Fig. 4 is a schematic structural view of the stirring blade of the present invention.
Fig. 5 is a schematic structural view of the stirring blade of the present invention.
Fig. 6 is a view from F to F of fig. 4 according to the present invention.
Fig. 7 shows the direction of sand flow during the stirring process of the present invention.
Fig. 8 is a schematic structural view of the sealing device of the present invention.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
As shown in fig. 1-8, the material liquid stirrer of the ink-jet 3D sand mold printer of the present invention comprises a material liquid mixing bin 6, a driving motor 5 disposed at the bottom of the material liquid mixing bin 6, a stirring shaft 8 connected to an output shaft of the driving motor 5 and disposed inside the material liquid mixing bin 6, at least one stirring blade 3 disposed on the stirring shaft 8, a sealing device 4 disposed at the bottom of the material liquid mixing bin 6, a material outlet 2 disposed on the lower side wall of the material liquid mixing bin 6, a material outlet door 1 sealed on the material outlet 2, and a liquid feeding capillary 7 disposed at the upper part of the material liquid mixing bin 6,
as shown in fig. 3-6, the stirring blade 3 includes a radial blade 3-1 and an axial blade 3-2 connected to the radial blade 3-1, the main blade of the radial blade 3-1 is a circular arc blade, the upper end surface 3-1-1 of the main blade is a spiral tangent plane, the diagonal plane 3-1-2 of the main blade forms an included angle of 50 degrees with the bottom plane 3-1-3 of the main blade, the axial blade 3-2 includes an upper working surface 3-2-1, a transition surface 3-2-2 and a lower working surface 3-2-3, the upper working surface 3-2-1 is perpendicular to the bottom plane 3-1-3 of the main blade, the lower working surface 3-2-3 forms an included angle of 10 degrees with the diagonal plane 3-1-2 of the main blade,
the sealing device 4 comprises a material stopping flange 4-5 arranged at the shaft shoulder of the motor shaft and positioned on the axial positioning end face of the stirring shaft 8, an O-shaped ring 4-4 arranged in a groove of the material stopping flange 4-5 and positioned on the axial positioning end face of the stirring shaft 8, a labyrinth seal 4-1 and an end face seal 4-2 which are arranged inside the material liquid mixing bin 6 and positioned between the end face of the shaft shoulder of the stirring shaft 8 and the end face of the bearing seat 11, namely the rotating end face and the non-rotating bottom face, and an axial seal 4-3 arranged between the shaft hole of the stirring shaft 8 and the shaft hole of the bearing seat 11.
The end face seal 4-2 is a graphite packing, and the end face seal 4-2 is arranged in a groove of the shaft shoulder end face, namely the rotating end face, of the stirring shaft 8 and is tightly pressed on the end face of the bearing seat 11.
The axial seal 4-3 is a graphite packing, and the axial seal 4-3 is tightly pressed in a gap between the stirring shaft 8 and the shaft hole of the bearing seat 11.
The bottom surface of the feed liquid mixing bin 6 is 15 degrees from the horizontal direction0-350And setting an angle.
The discharge door 1 inboard be equipped with the sprue, this sprue inboard is the cambered surface, this cambered surface when discharge door 1 closes with 6 inner wall cambered surfaces of feed liquid mixing bin unanimous. Discharge door 1 adopts the cylinder drive, and discharge door 1 closes the back, can block 2 blanks of discharge gate of feed liquid mixing bunker 6, and the sprue inboard is unanimous with 6 inner wall cambered surfaces of feed liquid mixing bunker under this state, avoids discharge door 1 and stirring vane 3 to interfere, also avoids 2 long-pending materials of discharge gate to lead to the stirring inequality simultaneously.
The at least one stirring blade 3 is two stirring blades 3, and the two stirring blades 3 are symmetrically arranged by taking the stirring shaft 8 as a center.
The utility model discloses an ink jet 3D sand printer feed liquid agitator is with quantitative sand material powder and quantitative acid aqueous solution stirring, and the granularity is 80 mesh-200 mesh medium sand material powder ratio 0.2% acid solution stirring, makes ready work for sand mould printing. In the stirring process, the stirring shaft 8 rotates anticlockwise to drive the stirring blades 3 to stir the sand material in the material-liquid mixing bin 6. The sand in the middle of the lower part in the horizontal feed liquid mixing bin 6 is gradually pushed away from the axis by the radial blades 3-1, the flowing direction is shown in figure 7b, and meanwhile, the sand in the middle of the upper part in the feed liquid mixing bin 6 falls and is filled as shown in figure 7a. The sand material pushed to the periphery by the radial blade 3-1 is gradually lifted by the inclined plane of the axial blade 3-2, slides from low to high, and then slides from a high point to the inner side of the radial blade 3-1. The stirring shaft 8 rotates continuously, and the flowing is repeated in cycles as described above, so that the uniform stirring of the feed liquid is finally realized. When discharging, the bottom surface of the feed liquid mixing bin 6 is 15 degrees from the horizontal direction0-350The angle is set, the discharging door 1 is opened during discharging, and sand can automatically flow out of the bin body of the material-liquid mixing bin 6 under the pushing of the stirring blade 3, so that the discharging is more convenient; the bottom surface of the feed liquid mixing bin 6 is 15 degrees from the horizontal direction0-350The setting of angle also makes the solution of adding evenly spill sand material swirl inboard, prevents that the stirring initial stage from making partial moist sand material glue on the 6 internal walls in storehouse of feed liquid mixing bunker because of the effect of centrifugal force.
In addition, the utility model discloses adopt tight sealing system in the bottom of (mixing) shaft, make (mixing) shaft 8 sealed effectual, long service life, work efficiency is high. 1. The bearing 9 is protected by combining three modes, namely labyrinth seal 4-1, end face seal 4-2 and axial seal 4-3: firstly, labyrinth seals 4-1 are used for preventing sand materials from entering a joint surface between a stirring shaft 8 and a bearing 9; then, end face sealing 4-2 is carried out, the material is graphite packing which is arranged in a groove of a rotating end face of the labyrinth sealing 4-1 and is tightly pressed on a non-rotating surface at the bottom of a bin body of the feed liquid mixing bin 6 to prevent sand from entering an axle gap; and finally, shaft sealing 4-3, wherein the material is graphite packing, and the graphite packing is tightly extruded in the shaft gap. The structure effectively blocks the sand outside, and the service life of the bearing 9 is ensured. 2. The O-shaped ring 4-4 and the material blocking flange 4-5 are combined to protect the motor shaft. If the material leakage phenomenon is intentionally caused, the combination can prevent sand from falling to the root of the motor shaft, and meanwhile, the material stopping flange 4-5 rotates, and under the action of centrifugal force, the sand is thrown to the outside through the opening 10 of the motor fixing seat, so that the motor shaft is protected. 3. The bearing seat 11 is detachable and is convenient to replace if worn by sand.
The utility model discloses an ink-jet 3D sand mould printer feed liquid agitator sets up near the sanding platform in the printing apparatus, and occupation space is little; the sand mixing effect is good, and the uniform mixing of small-particle powder and a small-amount proportioning solution can be realized; the stirring shaft 8 is combined by adopting three modes of labyrinth seal 4-1, end face seal 4-2 and axial seal 4-3, so that sand materials are prevented from flowing into the shaft sleeve and damaging the shaft and the shaft sleeve, the service life is long, and the working efficiency is high.
Claims (6)
1. A feed liquid stirrer of an ink-jet type 3D sand mold printer is characterized by comprising a feed liquid mixing bin, a driving motor arranged at the bottom of the feed liquid mixing bin, a stirring shaft connected with an output shaft of the driving motor and arranged in the feed liquid mixing bin, at least one stirring blade arranged on the stirring shaft, a sealing device arranged at the bottom of the feed liquid mixing bin, a discharge port arranged on the side wall of the lower part of the feed liquid mixing bin, a discharge door blocked on the discharge port, and a feed liquid capillary arranged at the upper part of the feed liquid mixing bin,
the stirring blade comprises a radial blade and an axial blade connected with the radial blade, the main blade of the radial blade is an arc-shaped blade, the upper end surface of the main blade is a spiral tangent plane, a main blade diagonal plane and a main blade bottom plane form an included angle of 50 degrees, the axial blade comprises an upper working surface, a transition surface and a lower working surface, the upper working surface is vertical to the main blade bottom plane, the lower working surface and the main blade diagonal plane form an included angle of 10 degrees,
sealing device including set up in motor shaft shoulder department and be located (mixing) shaft axial positioning terminal surface keep off the material flange, set up here and keep off in the material flange recess and be located the O type circle of (mixing) shaft axial positioning terminal surface sets up inside feed liquid mixing bunker, and is located labyrinth seal and end face seal between (mixing) shaft shoulder terminal surface and the bearing frame terminal surface set up axial seal between (mixing) shaft and the bearing frame shaft hole.
2. The feed liquid stirrer of the ink-jet 3D sand mold printer according to claim 1, wherein the end face seal is a graphite packing, and the end face seal is arranged in a groove on the end face of a shaft shoulder of the stirring shaft and is pressed on the end face of the bearing seat.
3. The feed liquid stirrer of the ink-jet 3D sand mold printer according to claim 1, wherein the axial seal is a graphite packing, and the axial seal is tightly pressed in a gap between the stirring shaft and the shaft hole of the bearing seat.
4. The feed liquid stirrer of the ink-jet 3D sand mold printer according to claim 1, wherein the bottom surface of the feed liquid mixing bin is 15 degrees from the horizontal direction0-350And setting an angle.
5. The feed liquid stirrer of the ink-jet 3D sand mold printer according to claim 1, wherein a block is arranged on the inner side of the discharge door, and the inner side of the block is an arc surface which is consistent with the arc surface of the inner wall of the feed liquid mixing bin when the discharge door is closed.
6. The feed liquid stirrer of the ink-jet 3D sand mold printer according to claim 1, wherein the at least one stirring blade is two stirring blades, and the two stirring blades are symmetrically arranged by taking the stirring shaft as a center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921209467.1U CN210645941U (en) | 2019-07-30 | 2019-07-30 | Feed liquid stirrer of ink-jet 3D sand mold printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921209467.1U CN210645941U (en) | 2019-07-30 | 2019-07-30 | Feed liquid stirrer of ink-jet 3D sand mold printer |
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| CN210645941U true CN210645941U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921209467.1U Active CN210645941U (en) | 2019-07-30 | 2019-07-30 | Feed liquid stirrer of ink-jet 3D sand mold printer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110302692A (en) * | 2019-07-30 | 2019-10-08 | 辽宁森远增材制造科技有限公司 | Ink jet type 3D sand mold printer feed liquid blender |
| CN112247067A (en) * | 2020-09-26 | 2021-01-22 | 共享智能铸造产业创新中心有限公司 | Sand mixing mechanism and 3D printer |
-
2019
- 2019-07-30 CN CN201921209467.1U patent/CN210645941U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110302692A (en) * | 2019-07-30 | 2019-10-08 | 辽宁森远增材制造科技有限公司 | Ink jet type 3D sand mold printer feed liquid blender |
| CN112247067A (en) * | 2020-09-26 | 2021-01-22 | 共享智能铸造产业创新中心有限公司 | Sand mixing mechanism and 3D printer |
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