CN110935843A - Casting sand mould subregion sanding flexible printing forming device with advanced sand discharging device - Google Patents
Casting sand mould subregion sanding flexible printing forming device with advanced sand discharging device Download PDFInfo
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- CN110935843A CN110935843A CN201911117986.XA CN201911117986A CN110935843A CN 110935843 A CN110935843 A CN 110935843A CN 201911117986 A CN201911117986 A CN 201911117986A CN 110935843 A CN110935843 A CN 110935843A
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- Prior art keywords
- sand
- printing
- sanding
- platform
- molding
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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
- B22C9/02—Sand moulds or like moulds for shaped castings
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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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
Abstract
The invention belongs to the field of rapid prototyping equipment, discloses a casting sand mould subarea flexible printing forming device with an advanced sand discharging device, designs a system integrating subarea sanding and an advanced sand discharging scheme, uses a sanding device with a subarea sanding function and a sand discharging system applying the advanced sand discharging scheme, realizes selective area sanding through planning control of a computer, solves the problem of waste caused by full-working plane sanding in the 3D printing process of the traditional sand mould, reduces the total usage amount of molding sand and the generation amount of residual sand in the printing process, improves the usage rate of the molding sand, and improves the efficiency of the sanding process. Meanwhile, the residual sand is rapidly removed, the difficulty of lifting and taking out the sand mold from the sand box is reduced, the residual sand collection efficiency is improved, and the recycling degree of the molding sand is improved.
Description
Technical Field
The invention belongs to the field of rapid forming equipment, and particularly relates to a flexible printing and forming device with an advanced sand discharge device and capable of spreading sand in different regions.
Background
Sand mould 3D printing is a fast forming technique based mainly on the droplet ejection principle. At present, most of sand mold 3D printing equipment is rapid forming equipment based on a powder bed, the forming process involves the working procedures of storage, supply, laying, recovery, resin binder spraying according to needs and the like of molding sand, and when the sprayed resin binder meets the molding sand premixed with a curing agent, sand grains are bonded and cured to form a required sand mold.
The sanding device in the existing sand mold 3D printing equipment generally operates independently above a printing platform and is provided with a single movable baffle, so that a sand layer of the whole printing platform is paved. In the process of sand mould manufacturing, the sanding device with single movable baffle can only pave sand to the full width of sanding because only single movable baffle can be controlled, can't pave sand as required according to the needs of concrete printing sand mould, has increased the waste of molding sand. And unnecessary sanding increases the time required for the sanding process.
After the existing sand mold 3D printing equipment finishes printing, a sand box is usually moved out of a printing box body in the Y direction, then the sand box is lifted upwards in the Z direction, and then the sand mold which is finished in printing is taken out. In the process of manufacturing the sand mold, more molding sand is not solidified with the binder sprayed by the printing head, but remains as residual sand in the sand mold after printing, so that the weight of the sand mold is increased, and the difficulty of moving and lifting the sand box is increased.
Disclosure of Invention
The invention provides a casting sand mould partition sand spreading flexible printing forming device with an advanced sand discharge device, and aims to solve the problems that the waste amount of molding sand is large and the waste sand cannot be automatically recycled in the process of manufacturing and printing a sand mould by using the existing sand mould 3D printing equipment.
This subregion sanding flexible printing forming device's characteristics are, combine together a plurality of adjustable fender and one set of sanding device, install a plurality of controllable adjustable fender on same set of sanding device, at the in-process of laying the molding sand, through controlling a plurality of adjustable fender independent opening and shutting respectively, realize that the subregion of molding sand is laid as required, greatly reduced not utilize the waste of laying of molding sand and molding sand, saved the required sanding time of unnecessary sanding simultaneously.
The advanced sand discharging device is characterized in that an original printing platform is transformed from a single-layer plane into a movable printing platform combined by multiple layers of different planes based on redesign of the printing platform. In particular, a fixed plane with a certain hole density is combined with one or more flat movable planes. In the sand paving process, a printing platform is constructed through plane combination; during the sand discharge process, the unbonded sand is allowed to fall through the holes by plane separation. This sand discharging device's design can realize that the sand mould prints the quick discharge of the molding sand that does not spray the binder to the printing in-process after accomplishing to reduce the degree of difficulty that shifts out the sand mould after printing the completion, accelerate the speed that the sand mould shifted out, realize the automatic recovery of useless sand, finally whole improvement sand mould 3D printing apparatus's work efficiency.
In order to achieve the purpose, the casting sand mold partition sand spreading flexible printing forming device with the advanced sand discharge device provided by the invention comprises the following steps:
step 1: feeding raw sand into a casting sand mold partition sand spreading flexible printing forming device through vacuum feeding, moving a workbench downwards for a certain distance, controlling the sand spreading device to lay a layer of raw sand without a curing agent as bottom sand, and discharging the residual raw sand in the device after finishing;
step 2: raw sand is fed in vacuum, enters a hopper containing a sand mixing device, is stirred with a curing agent, and the stirred molding sand is sent into a sand paving device;
and step 3: moving the movable platform to a working position, and tightly attaching the movable platform to a fixed platform with a hole to form a working platform;
and 4, step 4: moving the sand paving device to move one layer thickness under the working condition, moving the sand paving device from one side of the printing platform to the other side, partitioning the movable baffles according to a computer, paving sand according to needs, and finishing the paving of the molding sand of the current working layer;
and 5: the printing device is started, and the printing head scans and prints from left to right;
step 6: the printing device moves the distance of the width of the printing head, the step 5 is repeated, and scanning printing is carried out again;
and 7: repeating the step 5 to the step 6 until the printing device finishes moving from one side of the platform to the other side, and finishing printing the sand mold of the current working layer;
and 8: repeating the step 4 to the step 7, and printing layer by layer until the layers are finally stacked layer by layer to finish sand mold printing;
and step 9: moving the movable platform away, starting the vibration motor to vibrate the platform, and allowing the unbonded molding sand to fall through the holes and enter a waste sand box below the printing platform; the sand mold formed by bonding the molding sand has enough strength and is supported and left on the fixing plane with the holes;
step 10: moving the sand box out of the printing box body along the Y direction, and then lifting the printing platform along the Z direction to take out the complete sand mold;
step 11: and taking out the waste sand box along the Y direction, and recycling the waste sand.
By adopting the technical scheme, the method has the following advantages:
1. the cost is reduced, the efficiency is improved, the sand paving device realizes sand paving according to the needs in different areas, only paves the needed areas, reduces the paving of unused molding sand, reduces the waste of raw sand, improves the use efficiency of materials, saves the sand paving time of originally paving unused molding sand and the sand loading time of loading the mixed molding sand into the sand paving device, reduces the time needed by the working procedures and improves the overall efficiency of sand mold manufacturing;
2. the sand mold taking difficulty is reduced, and the advanced sand discharging device moves the non-bonded molding sand out of the printing platform through the device before lifting, so that the lifting difficulty of the printing platform is reduced, and the efficiency improvement and the structure optimization are facilitated;
3. the clean high efficiency is handled to the surplus sand, and the molding sand that does not bond passes through the device, directly gets into useless sand box in the confined printing box, has both reduced the raise dust that causes in the process of original processing surplus sand, has improved operational environment, has improved the efficiency of handling the surplus sand again for the work efficiency of equipment.
Drawings
FIG. 1 is a schematic view of a casting sand mold sectional sanding flexible printing and forming device with an advanced sand discharge device;
FIG. 2 is a side view of the sanding and printing integrated device, the printing platform, and the waste sand box;
FIG. 3 is a front view of the sanding and printing integrated apparatus, the printing platform, and the waste sand box;
FIG. 4 is a schematic view of a zonal sanding apparatus (front and bottom);
FIG. 5 is a front view of the advanced sand discharge apparatus (excluding the waste flask);
fig. 6 shows a side view of the advanced sand discharge apparatus (excluding the waste flask).
In the figure: 1. a sand storage tank; 2. a vacuum feeding device; 3. a sand mulling unit; 4. a curing agent storage tank; 5. a printing platform; 6. a sanding and printing integrated device; 7. a printing device; 8. a sand paving device; 9. printing the box body; 10. a waste sand box; 11. a liquid supply device; 12. an X-axis guide rail; 13. a Y-axis guide rail; 14. a printing platform guide rail; 15. a sanding device support; 16. a movable baffle; 17. fixing a plane; 18. a movable plane; 19. a platform lifting device; 20. a vibration motor; 21. a main support; 22. and (5) vibration damping.
Detailed Description
The flexible printing and forming device for casting sand mould partition sand laying provided by the invention is shown in figure 1, and comprises: store up sand jar 1, store sufficient molding sand before printing the sand mould, store up sand jar and be connected with vacuum loading attachment 2, during vacuum loading attachment 2 inhales sand mixing device 3 with the molding sand, sand mixing device 3 still is connected with curing agent holding vessel 4, and curing agent holding vessel 4 sends into sand mixing device 3 with the curing agent, stirs together with the molding sand, makes molding sand and curing agent homogeneous mixing this in-process. At this time, the movable plane and the fixed plane of the printing platform 5 are in a close fit state, and a complete working platform is formed. After printing is started, the sand mixing device 3 sends the molding sand which is not mixed with the curing agent into the sand paving device 8 of the sand paving and printing integrated device 6, the liftable working platform 5 controlled by the computer descends for a certain thickness, the sand paving device 8 horizontally moves along the Y-axis guide rail to uniformly pave a layer of bottom sand, and after paving is finished, the bottom sand horizontally moves back to the initial position from the opposite direction. Then the sand mixing device 3 sends the molding sand mixed with the curing agent into the sand paving device, after printing is started, the computer controls the working platform 5 to move downwards for a layer thickness distance, the sand paving and printing integrated device 6 is driven by a Y-axis guide rail to complete sand paving of the current layer, the sand paving device 8 paves sand in the process, the movable baffle 16 is controlled to open and close as required according to the control of the computer to perform subarea sand paving, and the printing device 7 is in standby in the process. And then the Y-axis guide rail drives the sanding and printing integrated device 6 to return to the initial position, the sanding and printing integrated device is driven by the X-axis guide rail to complete the spraying of the binder in the current scanning area, the sanding device 8 is standby in the process, and the printing device 7 sprays the curing agent as required by the printing head according to the control of the computer to scan the pattern on the path. And then the X-axis guide rail drives the printing device 7 to return to the initial position, the Y-axis guide rail drives the sanding and printing integrated device 6 to move for a distance of printing width, and the printing process is repeated until the spraying of the binder required by the current working layer is completed. The above-mentioned sanding printing process is repeated, and when the sand reserves are not many in the sanding device, sanding device 8 moves back initial position and carries out the dress sand. And repeating the processes to manufacture each section of the sand mold, and finally forming a complete sand mold in the printing box body. After the sand mould is printed, the movable plane 18 of the printing platform 5 is separated from the fixed plane 17, and the vibration motor 20 is started at the same time, so that the non-bonded molding sand falls down along with gravity and enters the waste sand box 10 below through the small holes in the fixed plane 17, and then the printing platform 5 moves out of the printing box body 9 to remove other non-bonded molding sand which does not fall down. And lifting the printing platform 5, and taking out the sand mold.
The invention takes an 8-shaped test block as an example, and comprises the following steps:
step 1: quartz sand having a particle size of 70/140 mesh was prepared, and this quartz sand was charged into a sand storage tank 1 as a raw material required for a 3D printing mold. Before a casting mold is printed, a vacuum feeding device 2 which is utilized according to the process requirement of the invention is required to suck quartz sand in a sand storage tank 1 into a sand mixing device 3;
step 2: before the casting mould is printed, the movable plane of the printing platform 5 is returned to make the movable plane 18 and the fixed plane 17 tightly attached to form a working plane. And floating sand on the working plane is cleaned, so that the working plane is clean and has no floating sand. Returning the sanding and printing integrated system to an initial position; then, the computer controls the transmission mechanism to drive the liftable printing platform 5 to move downwards for 5mm along the g direction; the sand laying and printing integrated device 6 moves along a Y-axis guide rail under the control of a computer, a layer of bottom sand is uniformly laid on the printing platform 5, and the bottom sand returns to an initial position and is cleaned after the laying is finished. The bottom sand is used for separating the formed casting from the workbench;
and step 3: sucking a proper amount of raw sand from the sand storage tank 1 into the sand mixing device 3 again by the vacuum feeding device 2, adding a fixed amount of curing agent which meets the proportion into the sand mixing device 3 by the curing agent storage tank 4 under the control of the computer, uniformly stirring, and filling the stirred molding sand into a sand paving device 8 of the sand paving and printing integrated device 6;
and 4, step 4: the printing platform 5 moves downwards for 2mm along the g direction, then the computer drives the sand paving and printing integrated device 6 to pave sand along the Y-axis guide rail at the sand paving speed V1, in the process, the sand paving device 8 works, the printing device 7 is in standby, and the movable baffle 16 of the sand paving device 8 is opened and closed according to the control of the computer to pave sand in a subarea mode. Then the Y-axis guide rail drives the sanding and printing integrated device 6 to return to the initial position on the Y-axis guide rail;
and 5: the computer drives the sanding and printing integrated device 6 to spray the binder along the X-axis guide rail at the printing speed V2, during which the sanding device 8 stands by, the printing device 7 works, and the print head scans the print area according to the computer allocation. Then the X-axis guide rail drives the sanding and printing integrated device 6 to return to the initial position on the X-axis guide rail;
step 6: the computer drives the X-axis guide rail to move along the Y-axis guide rail, and the moving distance is the width of the printing head of the printing device 7. Repeating the step 5 until the manufacturing of the current layer sand mold is completed;
and 7: the computer repeats the steps 4 to 6 according to the layering data of the casting mold, and prints each section shape of the casting mold layer by layer until the casting mold is finally stacked layer by layer;
and 8: after printing, the movable plane 18 of the printing platform 5 is separated from the fixed plane 17, and the vibration motor 20 is started to vibrate the platform, so that the residual sand without spraying the binder falls from the holes of the fixed plane 17 and enters the waste sand box 9 below the printing platform 5. Then the printing platform 5 is moved out of the printing box body, the residual sand which does not fall is cleaned, the printing platform 5 is lifted, and the 8-shaped solid casting mould 12 is taken out;
and step 9: and (4) removing the waste sand box 10, and recycling and disposing the waste sand.
Claims (3)
1. The utility model provides a casting sand mould subregion sanding flexible printing forming device with advanced sand discharging device which characterized in that includes:
the printing box body is used for forming a forming space for carrying out 3D printing on the sand mold;
the printing platform is arranged in the printing box body during printing and is used for bearing the molding sand, and the device is formed by vertically superposing a plane with a hole and a complete plane and is used for controlling the falling of the unbonded molding sand and realizing the rapid disposal of advanced sand discharge and waste sand;
the printing device is connected with the Y-axis guide rail and is used for spraying the adhesive;
the sand spreading device is connected with the X-axis guide rail and used for spreading the molding sand, and the sand spreading device is provided with a plurality of independently movable baffles for controlling the molding sand to fall down, so that the sand spreading in different areas can be realized;
the X-axis guide rail is positioned above the printing platform and used for paving sand and moving the printing device;
the Y-axis guide rail is connected with the X-axis guide rail, is vertical to the X-axis guide rail and is used for moving the printing device;
a waste sand box used below the printing platform and used for storing the non-bonded molding sand discharged by the sand discharge device;
the ink supply system is connected with a printing head of the printing device and is used for providing resin binder required by sand mould printing;
the curing agent storage tank is positioned above the printing box body and used for storing the curing agent;
the sand mixing device is positioned above the printing box body, is connected with the curing agent storage tank and is used for uniformly stirring the curing agent and the raw sand to provide molding sand required by printing;
the sand storage tank is positioned beside the printing box body and used for storing raw sand required by printing;
the vacuum feeding device is positioned above the printing box body, is connected with the sand mixing device and is used for feeding the raw sand into the sand mixing device from the sand storage tank;
and the control system is connected with the sand paving and printing integrated device, the printing head, the ink supply system, the sand mixing device and the vacuum feeding device and is used for controlling the operation of each device contained in the equipment.
2. A flexible print-forming apparatus for zoned sanding of cast sand molds with advanced sand discharge apparatus as claimed in claim 1, wherein said zoned sanding apparatus comprises:
a sanding device mount mounted on the X-axis rail of claim 1 for carrying movement of a sanding device;
the sand paving funnel is arranged on the sand paving device bracket and used for storing and paving the required molding sand;
the sand spreading device comprises a plurality of independent movable baffles, wherein the movable baffles are arranged on the bottom surface of a sand spreading device support, have the capability of respectively and independently moving and are used for controlling the spreading of molding sand.
3. A flexible print forming apparatus for zoned sanding of foundry sand molds with advanced sand discharge apparatus as claimed in claim 1, wherein said print station comprises:
the fixing platform is a plane which is fixed on the printing platform and is provided with holes with certain density, is used for supporting the completion of sand mold printing, and discharges non-bonded molding sand through the holes after the printing is completed;
the movable platform is an independent plane which can move below the fixed platform and is used for bearing the laid molding sand and the unbonded molding sand after the binder is printed;
the vibration motor is fixed on the bottom side of the fixed platform, can perform horizontal vibration and is used for accelerating the falling of the unbonded molding sand;
and the vibration damper is connected between the platform and the platform support and is used for matching with a vibration motor to work so as to realize the vibration of the working platform.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911117986.XA CN110935843A (en) | 2019-11-15 | 2019-11-15 | Casting sand mould subregion sanding flexible printing forming device with advanced sand discharging device |
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| CN201911117986.XA CN110935843A (en) | 2019-11-15 | 2019-11-15 | Casting sand mould subregion sanding flexible printing forming device with advanced sand discharging device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605339A (en) * | 2020-11-30 | 2021-04-06 | 浙江万里学院 | 3D printing sand mold design method based on Internet of things big data power assembly |
| CN112743042A (en) * | 2020-12-28 | 2021-05-04 | 无锡惠思特快速制造科技有限公司 | 3D sand mold printing device capable of flexibly changing sanding breadth and using method thereof |
| CN113458328A (en) * | 2021-06-17 | 2021-10-01 | 郑州中兴三维科技有限公司 | Follow-up sand adding system for 3D sand mold printing |
| CN114323861A (en) * | 2021-12-30 | 2022-04-12 | 江苏立元三维铸造科技有限公司 | Sand core rapid sample preparation printer |
| CN114918371A (en) * | 2022-05-20 | 2022-08-19 | 南京航空航天大学 | High-flexibility multi-region sanding method and device for multi-material sand mold printing |
| CN115106481A (en) * | 2022-07-15 | 2022-09-27 | 南京航空航天大学 | Double-roller synchronous fine-adjustment quantitative controllable sand mold additive manufacturing sand paving method and device |
| CN115351226A (en) * | 2022-07-19 | 2022-11-18 | 武汉纺织大学 | Three-dimensional printing sunlight curing device and method for sodium silicate sand |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150343699A1 (en) * | 2014-05-29 | 2015-12-03 | Rayama Pack Co., Ltd. | Thermoforming apparatus with the use of a plastic sheet cassette |
| CN105665632A (en) * | 2016-01-26 | 2016-06-15 | 机械科学研究总院先进制造技术研究中心 | Self-adaption sand mould 3D printing molding method and device |
| CN106363128A (en) * | 2016-08-31 | 2017-02-01 | 机械科学研究总院先进制造技术研究中心 | 3D printing forming device integrating sanding and printing |
| CN107321917A (en) * | 2017-07-03 | 2017-11-07 | 机械科学研究总院先进制造技术研究中心 | A kind of many material sand mold 3D printing manufacturing process |
| CN207057569U (en) * | 2017-05-08 | 2018-03-02 | 宁夏迪艾投资合伙企业（有限合伙） | A kind of magnetic control vibrations remove the device of the unnecessary sand material of 3D printing sand mold |
| CN107962776A (en) * | 2017-11-24 | 2018-04-27 | 安徽科元三维技术有限公司 | Multifunctional S L S printing product cleaning device |
| CN110370654A (en) * | 2019-07-19 | 2019-10-25 | 广东捷信科技服务有限公司韶关分公司 | A kind of ultrasonic automatic welding machine |
-
2019
- 2019-11-15 CN CN201911117986.XA patent/CN110935843A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150343699A1 (en) * | 2014-05-29 | 2015-12-03 | Rayama Pack Co., Ltd. | Thermoforming apparatus with the use of a plastic sheet cassette |
| CN105665632A (en) * | 2016-01-26 | 2016-06-15 | 机械科学研究总院先进制造技术研究中心 | Self-adaption sand mould 3D printing molding method and device |
| CN106363128A (en) * | 2016-08-31 | 2017-02-01 | 机械科学研究总院先进制造技术研究中心 | 3D printing forming device integrating sanding and printing |
| CN207057569U (en) * | 2017-05-08 | 2018-03-02 | 宁夏迪艾投资合伙企业（有限合伙） | A kind of magnetic control vibrations remove the device of the unnecessary sand material of 3D printing sand mold |
| CN107321917A (en) * | 2017-07-03 | 2017-11-07 | 机械科学研究总院先进制造技术研究中心 | A kind of many material sand mold 3D printing manufacturing process |
| CN107962776A (en) * | 2017-11-24 | 2018-04-27 | 安徽科元三维技术有限公司 | Multifunctional S L S printing product cleaning device |
| CN110370654A (en) * | 2019-07-19 | 2019-10-25 | 广东捷信科技服务有限公司韶关分公司 | A kind of ultrasonic automatic welding machine |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605339A (en) * | 2020-11-30 | 2021-04-06 | 浙江万里学院 | 3D printing sand mold design method based on Internet of things big data power assembly |
| CN112605339B (en) * | 2020-11-30 | 2023-12-26 | 浙江万里学院 | 3D printing sand mold design method based on big data power assembly of Internet of things |
| CN112743042A (en) * | 2020-12-28 | 2021-05-04 | 无锡惠思特快速制造科技有限公司 | 3D sand mold printing device capable of flexibly changing sanding breadth and using method thereof |
| CN113458328A (en) * | 2021-06-17 | 2021-10-01 | 郑州中兴三维科技有限公司 | Follow-up sand adding system for 3D sand mold printing |
| CN114323861A (en) * | 2021-12-30 | 2022-04-12 | 江苏立元三维铸造科技有限公司 | Sand core rapid sample preparation printer |
| CN114918371A (en) * | 2022-05-20 | 2022-08-19 | 南京航空航天大学 | High-flexibility multi-region sanding method and device for multi-material sand mold printing |
| CN115106481A (en) * | 2022-07-15 | 2022-09-27 | 南京航空航天大学 | Double-roller synchronous fine-adjustment quantitative controllable sand mold additive manufacturing sand paving method and device |
| CN115351226A (en) * | 2022-07-19 | 2022-11-18 | 武汉纺织大学 | Three-dimensional printing sunlight curing device and method for sodium silicate sand |
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