CN107774917B - The fixing means of chill on the 3D printing sand core and 3D printing sand core of chill is set - Google Patents
The fixing means of chill on the 3D printing sand core and 3D printing sand core of chill is set Download PDFInfo
- Publication number
- CN107774917B CN107774917B CN201710992497.3A CN201710992497A CN107774917B CN 107774917 B CN107774917 B CN 107774917B CN 201710992497 A CN201710992497 A CN 201710992497A CN 107774917 B CN107774917 B CN 107774917B
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- China
- Prior art keywords
- sand core
- chill
- connector
- magnetic sheet
- screw rod
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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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
- B33Y10/00—Processes of additive manufacturing
-
- 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
- B33Y80/00—Products made by additive manufacturing
Abstract
A kind of 3D printing sand core that chill is set, including sand core, chill, connector, in the inside of sand core, internal thread hole is set, the pockets of chill are placed in setting also on the outer wall of sand core, the internal thread hole is connected to the pockets, chill is placed in the pockets, connector is set between chill and sand core, connector includes screw rod and magnetic sheet, screw rod is connect with sand core, magnetic sheet and chill absorption connect, external screw thread is arranged in screw rod, the internal thread hole of sand core and the external screw thread of screw rod match, an end of screw rod is arranged in magnetic sheet, the side of magnetic sheet and the axial direction of screw rod are mutually perpendicular to, the lateralarea of magnetic sheet and the lateralarea of chill are identical, the present invention on sand core by presetting internal thread hole structure, so that the fixation chill that can only be can be convenient using a kind of 3D printing sand core of material printing, and do not have to introduce Foreign substance, casting quality is bad caused by reducing because of foreign substance.
Description
Technical field
The present invention relates to casting 3D printing technique fields more particularly to a kind of 3D printing sand core that chill is arranged and 3D to beat
Print the fixing means of chill on sand core.
Background technique
Casting is by Metal Melting at meeting necessarily required liquid and pouring into molding casting mold, through cooled and solidified, clearly
The technical process of the casting of predetermined shape, size and performance is obtained after whole.For spheroidal graphite cast-iron and steel-casting, shrinkage porosite tendency
It is very big, it needs to place chill and what riser cooperation carried out casting fills type cooling procedure, to obtain ideal casting.The chill to be made
It gets a desired effect, accuracy requirement height is put in position.
3D printing sand core and sand mold use increases material manufacturing technology, and designed sand core is successively laid with.It is beaten using 3D
The sand core of print technology production is not limited by shape, can print any shape in addition to closed cavity.But 3D printing sand core
It can only be a kind of material, chill directly can not be added in sand core print procedure.This makes the sand core of 3D printing in spheroidal graphite cast-iron
It is restricted with the use on steel-casting.
To solve to fix chill on 3D printing sand core, the prior art mainly adopts reserve chill in sand core makes to accommodate
Chill is sticked to chill accommodating chamber using binder after the completion of sand core printing by chamber, and then back-up sand fastens around again.This
Method has the following problems: 1, binder can generate a large amount of gas and other impurity when molten iron contacts, so that casting has folder
Stomata risk；2, bond quality is unstable, is easy to appear chill and falls into molten iron, casting is caused to be scrapped；3, rear around chill to mend
Sand can be easily separated and fall off, fall into type chamber molten iron, burning into sand defect caused to be scrapped.
Summary of the invention
It is necessary to propose a kind of 3D printing sand core for not introducing other impurities, the stable fixation of chill setting chill.
It is necessary to propose a kind of fixing means of chill on 3D printing sand core.
Internal screw thread is arranged in the inside of sand core in a kind of 3D printing sand core that chill is arranged, including sand core, chill, connector
The one end in hole, the internal thread hole extends to sand core internal, and the other end of internal thread hole is connected to a side wall of sand core, also exists
The pockets of chill are placed in setting on the outer wall of sand core, and the internal thread hole is connected to the pockets, and chill is placed in
In the pockets, connector is set between chill and sand core, connector includes screw rod and magnetic sheet, and screw rod and sand core connect
It connects, magnetic sheet and chill absorption connect, and external screw thread is arranged in screw rod, and the internal thread hole of sand core and the external screw thread of screw rod match, magnetic sheet
One end of screw rod is set, and the side of magnetic sheet and the axial direction of screw rod are mutually perpendicular to, the lateralarea of magnetic sheet and the side of chill
Face area is identical.
The fixing means of chill on a kind of 3D printing sand core, comprising the following steps:
Pockets on sand core designed for placement chill；
The internal thread hole of design installation screw rod on sand core；
Sand core is printed according to the sand core structure of design；
Sand core printing is completed, after hardening, and the screw rod of connector is equipped with internal thread hole, the magnetic sheet of connector is placed in
On the side wall of pockets；
Chill is placed in pockets, the assembling of chill and sand core is completed；
After examining sand core qualified, brush coating is spare.
The present invention on sand core by presetting internal thread hole structure, so that can only be using a kind of 3D printing sand of material printing
The fixation chill that core can be convenient, and do not have to introduce foreign substance, casting quality is bad caused by reducing because of foreign substance.
The present invention provides the adsorption capacity of chill by using the magnetic sheet structure with externally threaded screw rod, to realize chill
Stablize fix.The defects of avoiding using binder bring bleb, slag inclusion.
The fixing means of chill is conducive to the printing of sand core on the 3D printing sand core of the invention, and easy to operate, improves
Production efficiency.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the 3D printing sand core of the setting chill of better embodiment.
Fig. 2 is the schematic diagram of internal structure that the 3D printing sand core of connecting-piece structure is shown in Fig. 1.
Fig. 3 is the structural schematic diagram of the 3D printing sand core of the setting chill of another better embodiment.
Fig. 4 is the schematic diagram of internal structure that the 3D printing sand core of connecting-piece structure is shown in Fig. 3.
In figure: sand core 10, chill 20, screw rod 30, magnetic sheet 40.
Specific embodiment
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, common for this field
For technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Referring to Fig. 1, Fig. 2, the embodiment of the invention provides a kind of 3D printing sand core that chill is arranged, including it is sand core 10, cold
Internal thread hole is arranged in the inside of sand core 10 in iron 20, connector, and one end of the internal thread hole is interior to 10 internal stretch of sand core
The other end of threaded hole is connected to a side wall of sand core 10, and the receiving of setting placement chill 20 is recessed also on the outer wall of sand core 10
Slot, the internal thread hole are connected to the pockets, and chill 20 is placed in the pockets, in chill 20 and sand core 10
Between connector is set, connector includes screw rod 30 and magnetic sheet 40, and screw rod 30 is connect with sand core 10, and magnetic sheet 40 and chill 20 adsorb
External screw thread is arranged in connection, screw rod 30, and the external screw thread of the internal thread hole and screw rod 30 of sand core 10 matches, and magnetic sheet 40 is arranged in screw rod
An end, the side of magnetic sheet 40 and the axial direction of screw rod 30 be mutually perpendicular to, the lateralarea of magnetic sheet 40 and the side of chill 20
Area is identical.
Referring to Fig. 3, Fig. 4, further, the pockets of a placement chill 20 are opened up in the two side walls of sand core 10,
The two neighboring side wall is respectively the first side wall and second sidewall, and first to 10 internal stretch of sand core is arranged on the first side wall
The second internal thread hole to 10 internal stretch of sand core is arranged in internal thread hole in second sidewall, and the connector is two, respectively
For the first connector and the second connector, screw rod 30 and the first internal thread hole of the first connector match, the first connector
Magnetic sheet 40 is parallel to the side wall of the pockets on the first side wall, the screw rod 30 of the second connector and the second internal thread hole phase
To match, the magnetic sheet 40 of the second connector is parallel to the side wall of the pockets in second sidewall, and chill 20 is placed in pockets,
The two side walls of chill 20 are adsorbed with the magnetic sheet 40 of the magnetic sheet 40 of the first connector and the second connector connect respectively.
Further, magnetic sheet 40 is round plate, and the edge shape of magnetic sheet is circle, and convenient for rotation, the edge of magnetic sheet is little
In the inscribed circle of the side wall of chill.
The present invention also proposes a kind of fixing means of chill on 3D printing sand core, comprising the following steps:
Pockets on sand core 10 designed for placement chill 20；
The internal thread hole of design installation screw rod on sand core 10；
Sand core 10 is printed according to 10 structure of sand core of design；
The printing of sand core 10 is completed, after hardening, and the screw rod of connector is equipped with internal thread hole, the magnetic sheet 40 of connector is pacified
It is placed on the side wall of pockets；
Chill 20 is placed in pockets, the assembling of chill 20 and sand core 10 is completed；
After examining 10 qualification of sand core, brush coating is spare.
The steps in the embodiment of the present invention can be sequentially adjusted, merged and deleted according to actual needs.
Module or unit in the device of that embodiment of the invention can be combined, divided and deleted according to actual needs.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and wants according to right of the present invention
Made equivalent variations is sought, is still belonged to the scope covered by the invention.
Claims (4)
1. a kind of 3D printing sand core that chill is arranged, it is characterised in that: including sand core, chill, connector, set in the inside of sand core
Internal thread hole is set, one end of the internal thread hole extends to sand core internal, the other end of internal thread hole and a side wall of sand core
Connection, the pockets of chill are placed in setting also on the outer wall of sand core, and the internal thread hole is connected to the pockets, cold
Iron is placed in the pockets, is arranged connector between chill and sand core, and connector includes screw rod and magnetic sheet, screw rod with
Sand core connection, magnetic sheet and chill absorption connect, and external screw thread, the external screw thread phase of the internal thread hole and screw rod of sand core is arranged in screw rod
Match, an end of screw rod is arranged in magnetic sheet, and the side of magnetic sheet and the axial direction of screw rod are mutually perpendicular to, the lateralarea of magnetic sheet with it is cold
The lateralarea of iron is identical.
2. the 3D printing sand core of setting chill as described in claim 1, it is characterised in that: opened up in the two side walls of sand core
The pockets of one placement chill, described two side walls are respectively the first side wall and second sidewall, are arranged on the first side wall
The first internal thread hole extended to sand core internal, is arranged the second internal thread hole extended to sand core internal, institute in second sidewall
Stating connector is two, respectively the first connector and the second connector, the screw rod of the first connector and the first internal thread hole phase
Matching, the magnetic sheet of the first connector are parallel to the side wall of the pockets on the first side wall, the screw rod of the second connector and second
Internal thread hole matches, and the magnetic sheet of the second connector is parallel to the side wall of the pockets in second sidewall, and chill is placed in appearance
It receives in groove, the two side walls of chill are adsorbed with the magnetic sheet of the magnetic sheet of the first connector and the second connector connect respectively.
3. the 3D printing sand core of setting chill as claimed in claim 2, it is characterised in that: magnetic sheet is round plate, magnetic sheet
Edge shape is circle, and convenient for rotation, the edge of magnetic sheet is not more than the inscribed circle of the side wall of chill.
4. the fixing means of chill on a kind of 3D printing sand core, it is characterised in that the following steps are included:
Pockets on sand core designed for placement chill；
The internal thread hole of design installation screw rod on sand core；
Sand core is printed according to the sand core structure of design；
Sand core printing is completed, after hardening, and the screw rod of connector is equipped with internal thread hole, the magnetic sheet of connector is placed in receiving
On the side wall of groove；
Chill is placed in pockets, the assembling of chill and sand core is completed；
After examining sand core qualified, brush coating is spare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710992497.3A CN107774917B (en) | 2017-10-23 | 2017-10-23 | The fixing means of chill on the 3D printing sand core and 3D printing sand core of chill is set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710992497.3A CN107774917B (en) | 2017-10-23 | 2017-10-23 | The fixing means of chill on the 3D printing sand core and 3D printing sand core of chill is set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107774917A CN107774917A (en) | 2018-03-09 |
| CN107774917B true CN107774917B (en) | 2019-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710992497.3A Active CN107774917B (en) | 2017-10-23 | 2017-10-23 | The fixing means of chill on the 3D printing sand core and 3D printing sand core of chill is set |
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| CN (1) | CN107774917B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109954857B (en) * | 2019-04-26 | 2021-08-31 | 共享装备股份有限公司 | Fixing tool and fixing method for chill for 3D printing sand mold |
| CN113924178B (en) * | 2019-06-06 | 2023-08-11 | 西门子交通有限公司 | Method for producing a layer-by-layer structured workpiece, computer program product and workpiece |
| CN111097876B (en) * | 2019-12-03 | 2021-06-08 | 清华大学 | Method for applying chilling block to 3D printing sand mold |
| CN111590029B (en) * | 2020-04-22 | 2022-05-13 | 共享铸钢有限公司 | Method for setting chilling blocks in 3D printing sand core |
| CN113547081B (en) * | 2021-07-24 | 2023-03-03 | 共享装备股份有限公司 | 3D printing sand core chill fixing method |
| CN114210944B (en) * | 2021-11-29 | 2023-11-17 | 四川维珍高新材料有限公司 | Composite 3D printing preparation method of casting sand mold with chill and casting sand mold |
| CN115319021A (en) * | 2022-06-27 | 2022-11-11 | 日月重工股份有限公司 | Method for producing large steel casting through 3D printing |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201160019Y (en) * | 2008-03-05 | 2008-12-03 | 撫順卓倫機材實業有限公司 | Heatproof high-energy magnetic structure |
| JP5574937B2 (en) * | 2010-12-07 | 2014-08-20 | 三菱重工業株式会社 | Mold manufacturing method |
| CN102744387A (en) * | 2012-07-25 | 2012-10-24 | 河南省西峡汽车水泵股份有限公司 | Method for placing chiller in casting process |
| CN202715806U (en) * | 2012-08-20 | 2013-02-06 | 桐乡合德机械有限公司 | Chilling block positioning structure of mold |
| CN203030860U (en) * | 2012-12-25 | 2013-07-03 | 常州华德机械有限公司 | Cast cold iron positioning device |
| CN105798276A (en) * | 2016-04-29 | 2016-07-27 | 共享装备股份有限公司 | Densener capable of being prevented from falling from casting mould or sand core |
| CN205629279U (en) * | 2016-05-21 | 2016-10-12 | 沈阳明腾科技有限公司 | Sand casting chill fixing device |
| CN106862494B (en) * | 2017-02-28 | 2018-10-19 | 共享智能装备有限公司 | A kind of production method of the 3D printing sand core of the direct-cooled chill of band |
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- 2017-10-23 CN CN201710992497.3A patent/CN107774917B/en active Active
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| CN107774917A (en) | 2018-03-09 |
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