CN109848374B - Resin sand core 3D printing device based on double-circle rotation control - Google Patents
Resin sand core 3D printing device based on double-circle rotation control Download PDFInfo
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- CN109848374B CN109848374B CN201910043979.3A CN201910043979A CN109848374B CN 109848374 B CN109848374 B CN 109848374B CN 201910043979 A CN201910043979 A CN 201910043979A CN 109848374 B CN109848374 B CN 109848374B
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- top rail
- ejector rod
- fixed
- nozzle
- sand core
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- 239000011347 resin Substances 0.000 title claims abstract description 16
- 229920005989 resin Polymers 0.000 title claims abstract description 16
- 238000010146 3D printing Methods 0.000 title claims abstract description 10
- 238000007599 discharging Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims 1
- 239000004576 sand Substances 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention provides a resin sand core 3D printing device based on double-circle rotation control, which comprises a disc-shaped base; a plurality of upright posts are vertically fixed on the periphery of the base, and geometric centers of the upright posts are distributed at the positions and overlapped with the circle center of the base; the top end of the upright post is fixed with a circular top rail, the top rail is provided with a guide wheel, the end part of the ejector rod is fixed on the guide wheel, so that the ejector rod can horizontally rotate on the top rail, and the rotation center point of the ejector rod is overlapped with the circle center of the top rail on vertical projection. The invention is based on the structural arrangement of the disc-shaped base, the annular top rail, the turntable and the like, so that the horizontal movement component of the nozzle is based on a circle shape from the physical control, the forming of the resin sand core structure mainly based on the circle shape is very convenient, the workload of further processing in the later period is greatly reduced, and the circumferential structure of a casting formed by the formed resin sand core is extremely small.
Description
Technical Field
The invention relates to a resin sand core 3D printing device based on double-circle rotation control.
Background
The traditional resin sand core manufacturing mainly relies on a manually operated die to ensure the structure and the size of the sand core, so that the problems of multiple die design problems, long production period, high cost and the like exist, the accuracy of the die is reduced after long-term use, and human factors have great influence on the performance index of the sand core, the consistency of the sand core is poor, and the quality of castings is influenced.
Therefore, the 3D printing technology is applied to manufacturing of the resin sand core, so that the consistency of the sand core can be effectively ensured theoretically, the casting quality is ensured, and the die design is simpler, the production period is shorter and the cost is lower.
However, in the existing 3D printing technology, the two moving rods move in the transverse direction and the longitudinal direction to drive the discharge nozzle to move in the horizontal direction, so that the forming is easy for a structure mainly comprising a rectangle, but the periphery of a circular structure after forming is not round enough for a structure mainly comprising a circle, the degree of roundness of the structure circumference can be improved by cutting, polishing and the like for plastics, but the further processing of the later stage is very troublesome once the resin sand core is hardened and formed.
Disclosure of Invention
In order to solve the technical problems, the invention provides the resin sand core 3D printing device based on double-circle rotation control, which is based on the structural arrangement of a disc-shaped base, a circular ring-shaped top rail and the like, so that the horizontal movement component of a nozzle is based on a circle from physical control, the forming of the resin sand core structure mainly based on the circle is very convenient, and the workload of further processing in the later stage is greatly reduced.
The invention is realized by the following technical scheme.
The invention provides a resin sand core 3D printing device based on double-circle rotation control, which comprises a disc-shaped base; a plurality of upright posts are vertically fixed on the periphery of the base, and geometric centers of the upright posts are distributed at the positions and overlapped with the circle center of the base; the top end of the upright post is fixed with a circular top rail, the top rail is provided with a guide wheel, the end part of the ejector rod is fixed on the guide wheel, so that the ejector rod can horizontally rotate on the top rail, and the rotation center point of the ejector rod is overlapped with the circle center of the top rail on vertical projection; the ejector rod is provided with a center component which can move along the ejector rod, the lower end of the center component is fixedly provided with a rotary table, the bottom of the rotary table is vertically fixedly provided with a telescopic rod, the lower end of the telescopic rod is fixedly provided with a steering component, and a nozzle is arranged on the steering component.
The upright post positions are uniformly distributed.
The telescopic rod is a four-section hydraulic rod.
And the guide wheel is internally provided with a hub motor.
The steering assembly is internally provided with a stepping motor to drive the nozzle to rotate along a vertical plane relative to the steering assembly.
The maximum rotation angle of the nozzle relative to the steering assembly is 210 °.
The turntable is horizontally fixed, and the built-in motor of the turntable enables the bottom surface of the turntable to rotate relative to the top surface.
The nozzle is two-way ejection of compact, and the pipeline of two-way ejection of compact is extended to the nozzle by central subassembly, carousel, telescopic link, steering assembly inside in proper order.
And a speed reducing motor is arranged in the center assembly to drive the center assembly to move on the ejector rod.
The invention has the beneficial effects that: based on the structural settings of disc-shaped base, annular top rail, carousel etc. for the horizontal migration component of nozzle becomes on the physical control basis with the circular, very conveniently carries out the shaping of the resin sand core structure with circular as the main part, reduces the work load of later stage further processing by a wide margin, and the unusual few of the circumference structure of the foundry goods that the fashioned resin sand core becomes.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 11-base, 12-upright post, 13-top rail, 14-guide groove, 21-guide wheel, 22-ejector rod, 23-center component, 31-turntable, 32-telescopic rod, 33-steering component and 34-nozzle.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the above.
The resin sand core 3D printing device based on double-circle rotation control as shown in FIG. 1 comprises a disc-shaped base 11; a plurality of upright posts 12 are vertically fixed on the periphery of the base 11, and geometric centers of the position distribution of the upright posts 12 are overlapped with the circle center of the base 11; the top end of the upright post 12 is fixed with a circular top rail 13, the top rail 13 is provided with a guide wheel 21, the end part of the ejector rod 22 is fixed on the guide wheel 21 so that the ejector rod 22 can horizontally rotate on the top rail 13, and the rotation center point of the ejector rod 22 is overlapped with the circle center of the top rail 13 on vertical projection; the ejector rod 22 is provided with a center assembly 23 which can move along the ejector rod 22, a rotary table 31 is fixed at the lower end of the center assembly 23, a telescopic rod 32 is vertically fixed at the bottom of the rotary table 31, a steering assembly 33 is fixed at the lower end of the telescopic rod 32, and a nozzle 34 is arranged on the steering assembly 33.
The upright posts 12 are uniformly distributed in position.
The telescopic rod 32 is a four-section hydraulic rod.
The guide wheel 21 is internally provided with an in-wheel motor.
The steering assembly 33 is internally provided with a stepping motor to drive the nozzle 34 to rotate along a vertical plane relative to the steering assembly 33.
The maximum rotation angle of the nozzle 34 with respect to the steering assembly 33 is 210 °.
The turntable 31 is horizontally fixed, and a motor is arranged in the turntable 31 to enable the bottom surface of the turntable 31 to rotate relative to the top surface.
The nozzle 34 is two-way discharging, and the pipelines of the two-way discharging extend to the nozzle 34 from the inside of the central component 23, the rotary disk 31, the telescopic rod 32 and the steering component 33 in sequence.
The center assembly 23 is internally provided with a speed reducing motor to drive the center assembly 23 to move on the ejector rod 22.
In the present invention, the first arc-shaped travel route can be realized by controlling the guide wheel 21 during operation, the second arc-shaped travel route can be realized by controlling the turntable 31, and the two arc-shaped travel routes are overlapped in control, so that the front end of the nozzle 34 can completely realize any arc (elliptical arc) travel route in the horizontal direction, thereby greatly avoiding the defect of incomplete simulation arc travel route caused by a longitudinal and transverse movement mode, and the front end of the nozzle 34 can realize any arc travel route in the vertical direction by controlling the stepping motor arranged in the steering assembly 33, thereby combining the controllable nozzle 34 front end to realize any arc travel route in any direction.
Claims (1)
1. Resin sand psammitolite 3D printing device based on two circles rotate control, including discoid base (11), its characterized in that: a plurality of upright posts (12) are vertically fixed on the periphery of the base (11), and geometric centers of the position distribution of the upright posts (12) are overlapped with the circle center of the base (11); the top end of the upright post (12) is fixed with a circular top rail (13), the top rail (13) is provided with a guide wheel (21), the end part of the ejector rod (22) is fixed on the guide wheel (21) so that the ejector rod (22) can horizontally rotate on the top rail (13), and the rotating center point of the ejector rod (22) is overlapped with the circle center of the top rail (13) on vertical projection; a central component (23) is arranged on the ejector rod (22) and can move along the ejector rod (22), a rotary table (31) is fixed at the lower end of the central component (23), a telescopic rod (32) is vertically fixed at the bottom of the rotary table (31), a steering component (33) is fixed at the lower end of the telescopic rod (32), and a nozzle (34) is arranged on the steering component (33);
the upright posts (12) are uniformly distributed in position;
The telescopic rod (32) is a four-section hydraulic rod;
the guide wheel (21) is internally provided with a hub motor;
The steering assembly (33) is internally provided with a stepping motor to drive the nozzle (34) to rotate along a vertical plane relative to the steering assembly (33);
The maximum rotation angle of the nozzle (34) relative to the steering assembly (33) is 210 degrees;
The turntable (31) is horizontally fixed, and a motor is arranged in the turntable (31) to enable the bottom surface of the turntable (31) to rotate relative to the top surface;
The nozzle (34) is two paths of discharging, and pipelines for discharging in two paths extend to the nozzle (34) from the inside of the central component (23), the turntable (31), the telescopic rod (32) and the steering component (33) in sequence;
the center assembly (23) is internally provided with a speed reducing motor to drive the center assembly (23) to move on the ejector rod (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910043979.3A CN109848374B (en) | 2019-01-17 | 2019-01-17 | Resin sand core 3D printing device based on double-circle rotation control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910043979.3A CN109848374B (en) | 2019-01-17 | 2019-01-17 | Resin sand core 3D printing device based on double-circle rotation control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109848374A CN109848374A (en) | 2019-06-07 |
| CN109848374B true CN109848374B (en) | 2024-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910043979.3A Active CN109848374B (en) | 2019-01-17 | 2019-01-17 | Resin sand core 3D printing device based on double-circle rotation control |
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Families Citing this family (1)
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| CN113829622B (en) * | 2021-09-06 | 2024-09-13 | 汕头市恒汕建筑工程有限公司 | Printing device of 3D printing house based on BIM |
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| CN109848374A (en) | 2019-06-07 |
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