CN211071830U - 3D prints metal forming device - Google Patents
3D prints metal forming device Download PDFInfo
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- CN211071830U CN211071830U CN201922197601.7U CN201922197601U CN211071830U CN 211071830 U CN211071830 U CN 211071830U CN 201922197601 U CN201922197601 U CN 201922197601U CN 211071830 U CN211071830 U CN 211071830U
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Abstract
The utility model discloses a 3D prints metal forming device, including powder storehouse, work or material rest, injection printing shower nozzle, fritting furnace and discharging platform, the top in powder storehouse sets up the powder roll, and the powder roll can roll along the work or material rest and spread metal powder to the work or material rest, and the bottom of work or material rest sets up the lift platform respectively, and the lift platform can drive the work or material rest up-and-down motion; the injection printing nozzle can spray liquid binder on the work or material rest, and the fritting furnace can heat the sintering to the metal forming part. The utility model discloses a 3D prints metal forming device during operation, the powder roll rolls on the powder storehouse, and metal powder glues in the surface of powder roll, and the powder roll rolls on the work or material rest, lays metal powder on the work or material rest, and the shower nozzle is printed to the injection to metal powder blowout liquid binder, bonding metal powder material layer, and the above-mentioned step of repetition is until the metal finished piece shaping, sends the metal formed part into the fritting furnace, and the metal formed part gets rid of the binder in the fritting furnace to the sintering shaping.
Description
Technical Field
The utility model relates to a quick shaping technical field especially relates to a 3D prints metal forming device.
Background
3D printing is one of the rapid prototyping technologies, which is a technology for constructing an object by using an adhesive material such as powdered metal or plastic and the like in a layer-by-layer printing manner on the basis of a digital model file. Currently, laser powder sintering printing and binder jet printing are the most common for 3D printing. Among them, the laser powder sintering technology currently has the following disadvantages: 1) the energy consumption is high, and the materials are continuously heated by high-energy-consumption laser to be welded together; 2) the cycle is long, and a few complex parts can take several days; 3) the surface is rough, and the surface of the part has obvious welding marks due to laser melting, so that post-treatment is needed before actual use; 4) the unit price of the equipment is high, and the unit price of the common equipment is hundreds of thousands or even millions.
Adhesive jet printing technology is an additive manufacturing process in which a liquid adhesive is selectively deposited to connect powder particles. The layers of material are then bonded to form the object. The printhead selectively drops the binder into the powder. The work box is lowered and then another layer of powder is applied and binder is added. Over time, the part develops through delamination of the powder and binder. Adhesive jet printing technology is capable of printing a variety of materials, including metals, sand, and ceramics. Some materials, such as sand, do not require additional treatment. Other materials are typically cured and sintered, and sometimes infiltrated with another material, depending on the application. Hot isostatic pressing may be used to achieve a high density of solid metal. Adhesive jet printing techniques are similar to conventional paper printing. The binder acts like an ink in that it moves over the powder layer, like a paper, to form the final product. The binder-sprayed metal forming needs sintering subsequently, and the problem of material shrinkage is involved, so that the method has the defects in the aspect of manufacturing high-precision small parts at one time.
Therefore, how to change the current situations of high energy consumption, low precision and high manufacturing cost in the 3D printing metal forming technology in the prior art becomes a problem to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a 3D prints metal forming device to solve the problem that above-mentioned prior art exists, reduce 3D and print metal fashioned energy consumption and cost, improve 3D and print metal fashioned precision.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides a 3D prints metal forming device, including powder storehouse, work or material rest, injection printing shower nozzle, fritting furnace and ejection of compact platform, the powder storehouse can hold metal powder, the top in powder storehouse sets up the powder roll, the powder roll can roll along the work or material rest and spread metal powder to the work or material rest, the work or material rest is made by high temperature resistant material, the bottom of work or material rest sets up lift platform respectively, the lift platform can drive the work or material rest up-and-down motion; the injection printing nozzle is connected with a liquid binder box, the injection printing nozzle can spray liquid binder on the material frame, the sintering furnace can heat and sinter metal formed parts, a heating element is arranged in the sintering furnace, and the sintering furnace is connected with the discharging platform.
Preferably, the 3D printing metal forming device is further provided with a powder recoverer, and the powder recoverer can recover metal powder on the material rest.
Preferably, the sintering furnace is connected with an air inlet system and a vacuum system, the air inlet system comprises an air inlet, the air inlet is communicated with an inner cavity of the sintering furnace, and an air inlet valve is arranged between the air inlet and the sintering furnace; the vacuum system comprises a vacuum pump and a valve, the vacuum pump can vacuumize the sintering furnace, and the valve is arranged between the vacuum pump and the sintering furnace.
Preferably, the work or material rest is open-ended container in top, and is a plurality of the work or material rest can superpose and place, the degree of depth of work or material rest is great than the height of metal forming part.
Preferably, the 3D printing metal forming device further comprises a manipulator, the manipulator is arranged between the material rack and the sintering furnace, the manipulator can place the material rack on the lifting platform, and the manipulator can feed a metal forming part into the sintering furnace or take the metal forming part out of the sintering furnace.
Preferably, the sintering furnace is of a cuboid structure, the sintering furnace is provided with a top gate and a side gate, the top gate is arranged at the top of the sintering furnace, and the side gate is arranged on the side surface of the sintering furnace; the sintering furnace is further connected with a push rod mechanism, and the push rod mechanism can push the metal forming part in the sintering furnace.
Preferably, a conveying mechanism is arranged between the lifting platform and the sintering furnace, and the conveying mechanism can convey the metal forming part and the material rack into the sintering furnace.
Preferably, the heating element is disposed on a side wall of the sintering furnace.
The utility model discloses for prior art gain following technological effect: the utility model discloses a 3D prints metal forming device, including powder storehouse, work or material rest, injection printing shower nozzle, fritting furnace and ejection of compact platform, the powder storehouse can hold metal powder, and the top in powder storehouse sets up the powder roll, and the powder roll can roll along the work or material rest and spread metal powder to the work or material rest, and the work or material rest is made by high temperature resistant material, and the bottom of work or material rest sets up lift platform respectively, and lift platform can drive the work or material rest up-and-down motion; the injection printing nozzle is connected with the liquid binder workbin, and the injection printing nozzle can be to spraying liquid binder on the work or material rest, and the fritting furnace can heat the sintering to the metal forming part, sets up heating element in the fritting furnace, and ejection of compact platform is connected to the fritting furnace. The utility model discloses a 3D prints metal forming device during operation, the powder roll rolls on the powder storehouse, and metal powder glues the surface at the powder roll, and the powder roll rolls on the work or material rest, lays metal powder on the work or material rest, and the injection is printed the metal powder blowout liquid binder of shower nozzle to the work or material rest, and the bonding metal powder material layer repeats above-mentioned step until the metal finished piece shaping, sends into the metal formed part in the sintering furnace, and the binder is got rid of in the sintering furnace to the metal formed part to the sintering shaping. The 3D printing metal forming device of the utility model is used for forming metal parts, and the surface precision is improved by adopting the adhesive and metal powder to be formed in an overlapping way, while in the prior art, the formed part sintered by laser powder has a rough surface and must be processed for the second time; the utility model discloses a to metal powder injection binder shaping metal finished piece, utilize the fritting furnace sintering after the shaping, binder injection molding is compared in the laser powder sintering, has reduced energy consumption and manufacturing cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural view of a 3D printing metal forming device of the present invention;
fig. 2 is a schematic top view of a part of the structure of the 3D printing metal forming apparatus of the present invention;
fig. 3 is a schematic structural diagram of another embodiment of the 3D printing metal forming apparatus of the present invention;
fig. 4 is a schematic top view of a partial structure of another embodiment of the 3D printing metal forming apparatus according to the present invention;
fig. 5 is a schematic structural diagram of another embodiment of a 3D printing metal forming apparatus according to the present invention;
the device comprises a powder storage, a material rack 2, an injection printing nozzle 3, a sintering furnace 4, a top gate 401, a side gate 402, a discharging platform 5, a powder roller 6, a lifting platform 7, a liquid binder box 8, a powder recoverer 9, an air inlet system 10, a vacuum system 11, a manipulator 12 and a push rod mechanism 13, wherein the powder storage is arranged in the powder storage, the material rack 2, the injection printing nozzle 3, the sintering furnace 4, the powder recoverer 9, the air inlet system 10, the vacuum system 11, the manipulator 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a 3D prints metal forming device to solve the problem that above-mentioned prior art exists, reduce 3D and print metal fashioned energy consumption and cost, improve 3D and print metal fashioned precision.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Please refer to fig. 1-4, wherein, fig. 1 is a schematic structural diagram of a 3D printing metal forming device of the present invention, fig. 2 is a schematic top view of a partial structure of the 3D printing metal forming device of the present invention, fig. 3 is a schematic structural diagram of other embodiments of the 3D printing metal forming device of the present invention, fig. 4 is a schematic top view of a partial structure of other embodiments of the 3D printing metal forming device of the present invention, and fig. 5 is a schematic structural diagram of another embodiment of the 3D printing metal forming device of the present invention.
The utility model provides a 3D prints metal forming device, including powder storehouse 1, work or material rest 2, injection print shower nozzle 3, fritting furnace 4 and ejection of compact platform 5, powder storehouse 1 can hold metal powder, and the top of powder storehouse 1 sets up powder roll 6, and powder roll 6 can roll along work or material rest 2 and spread metal powder to work or material rest 2, and work or material rest 2 is made by high temperature resistant material, and the bottom of work or material rest 2 sets up lift platform 7 respectively, and lift platform 7 can drive work or material rest 2 up-and-down motion; the injection printing nozzle 3 is connected with a liquid binder material box 8, the injection printing nozzle 3 can spray liquid binder on the material rack 2, the sintering furnace 4 can heat and sinter metal formed parts, a heating element is arranged in the sintering furnace 4, and the sintering furnace 4 is connected with a discharging platform 5.
Utilize the utility model discloses a when 3D printed metal forming device shaping metal finished piece, powder roll 6 rolls on powder storehouse 1, metal powder glues at powder roll 6's surface, powder roll 6 rolls on work or material rest 2, lay metal powder on work or material rest 2, the injection is printed shower nozzle 3 and is to the metal powder blowout liquid binder on work or material rest 2, the bonding metal powder material layer, repeat above-mentioned step until the metal finished piece shaping, send the metal formed part into fritting furnace 4, the binder is got rid of to the metal formed part in fritting furnace 4, and the sintering shaping. The utility model adopts the overlapping molding of the binder and the metal powder, which improves the surface precision and can reach 30-200 μm, while in the prior art, the molded part sintered by the laser powder has rough surface and must be processed by the secondary processing; the utility model discloses a to metal powder injection binder shaping metal finished piece, utilize 4 sinterings of fritting furnace after the shaping, binder injection molding is compared in the laser powder sintering, has reduced energy consumption and manufacturing cost.
In addition, the 3D printing metal forming device is further provided with a powder recoverer 9, the powder recoverer 9 can recover metal powder on the material frame 2, the powder recoverer 9 can recover redundant metal powder laid, the metal powder is recycled, and production cost is saved.
Specifically, the sintering furnace 4 is connected with an air inlet system 10 and a vacuum system 11, the air inlet system 10 comprises an air inlet, the air inlet is communicated with an inner cavity of the sintering furnace 4, the sintering furnace 4 is communicated with the external environment through the air inlet, and an air inlet valve is arranged between the air inlet and the sintering furnace 4, so that the opening and closing of the air inlet can be conveniently controlled; vacuum system 11 includes vacuum pump and valve, and the vacuum pump can carry out the evacuation to sintering furnace 4, and the valve sets up between vacuum pump and sintering furnace 4, and when sintering to the metal finished piece, the operator can decide whether to carry out the evacuation in the sintering furnace 4 according to operating condition.
In this embodiment, work or material rest 2 is open-ended container in the top, and a plurality of work or material rest 2 can superpose and place, and the degree of depth of work or material rest 2 is great than the height of metal forming part, damages the metal forming part when avoiding a plurality of work or material rest 2 superposes to set up. Under the less condition of forming part volume, also can set up the space bar in a work or material rest 2 a plurality of metal finished pieces of shaping, avoid adjacent metal finished piece friction damage, improve metal finished piece's shaping quality on work or material rest 2.
In order to improve work efficiency, 3D prints metal forming device still includes manipulator 12, and manipulator 12 sets up between work or material rest 2 and fritting furnace 4, and manipulator 12 can place work or material rest 2 on lift platform 7, and manipulator 12 can send into the fritting furnace 4 with the metal forming part or take out from fritting furnace 4, in the actual production, can set up one or more manipulator 12 according to the specification of specific operation and production line.
More specifically, the sintering furnace 4 is of a cuboid structure, the sintering furnace 4 is provided with a top gate 401 and a side gate 402, the top gate 401 is arranged at the top of the sintering furnace 4, the top gate 401 is opened, the metal part can be placed into the sintering furnace 4, the side gate 402 is arranged on the side surface of the sintering furnace 4, and after the metal part is sintered, the metal part can be transferred to the discharging platform 5 and can be output through the side gate 402; the sintering furnace 4 is also connected with a push rod mechanism 13, the push rod mechanism 13 can push metal formed parts in the sintering furnace 4, the workload of operators is reduced, the position of the side gate 402 can be specifically set according to the discharging platform 5, and the number of the side gate 402 is at least one.
Under the prerequisite that has set up side gate 402, set up transport mechanism between lift platform 7 and the fritting furnace 4, transport mechanism can carry metal forming spare and work or material rest 2 to fritting furnace 4 in, simplify metal forming spare and shift the step, improve production efficiency. The utility model discloses an among other embodiments, transport mechanism can adopt belt conveyor, and belt conveyor transport ability is strong, the maintenance of being convenient for, and when setting up transport mechanism in fritting furnace 4, the transmission band of belt conveyor adopts high temperature resistant transmission band, avoids high temperature influence transport mechanism's normal operation in fritting furnace 4.
In the present embodiment, the heating elements are provided on the side wall of the sintering furnace 4 to uniformly heat the metal pieces.
The utility model discloses a 3D prints metal forming device during operation, including following step:
the method comprises the following steps that firstly, a powder roller 6 rolls on a powder warehouse 1, metal powder is adhered to the surface of the powder roller 6, the powder roller 6 rolls on a material rack 2, the metal powder is laid on the material rack 2, and an injection printing nozzle 3 sprays liquid adhesive to the metal powder on the material rack 2 to adhere a metal powder material layer;
step two, after the first layer of spraying is finished, the powder roller 6 resets, the lifting platform 7 drives the material rack 2 to descend, and the operation of the step one is repeated until the metal part is molded;
and step three, feeding the metal formed part into a sintering furnace 4, removing the binder from the metal formed part in the sintering furnace 4, sintering and forming, taking out the metal formed part, and placing the metal formed part on a discharging platform 5.
Further, when a plurality of metal forming parts are formed at one time, after one group of metal forming parts are formed, another material frame 2 is continuously superposed and placed on the material frame 2, the operation of the first step and the operation of the second step are continuously carried out, and finally all the metal forming parts are sent into the sintering furnace 4 to be subjected to the operation of the third step.
The utility model discloses compare with 3D among the prior art printing, there are a great deal of advantages: a. the adhesive jet printing does not generate heat in the processing process, the laser powder sintering technology melts the powder together by means of heat, and the heat can cause residual stress of a product in a part, so that stress removal treatment is required after the laser powder sintering technology; b. the precision is high. The adhesive spray printing is carried out by overlapping the adhesive and the metal powder, so the surface precision is high and can reach 30-200 mu m at present, while the laser powder sintering is carried out by metal melting, the surface is very rough and can be used only by secondary processing; c. the energy consumption is low. When the laser powder is sintered, high-power laser must be used for outputting for a long time, and the energy consumption of the utility model is far less than that of the laser powder sintering technology by the way of spraying, printing and sintering the adhesive; d. the period is short. The laser powder sintering technology can take several days for larger parts, and only one part can be printed at a time, while the utility model can simultaneously print dozens or even hundreds of parts and then sinter at one time, thus having great advantages in time; e. the cost is low. The unit price of the common laser powder sintering technical equipment is as high as hundreds of thousands or even millions, and the utility model can greatly reduce the cost of the equipment; f. the waste is less. The excess metal powder can be recovered for further use.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. The utility model provides a 3D prints metal forming device which characterized in that: the sintering furnace comprises a powder warehouse, a material rack, an injection printing spray head, a sintering furnace and a discharging platform, wherein the powder warehouse can contain metal powder, a powder roller is arranged at the top of the powder warehouse, the powder roller can roll along the material rack and spread the metal powder on the material rack, the material rack is made of high-temperature-resistant materials, lifting platforms are respectively arranged at the bottoms of the material racks, and the lifting platforms can drive the material rack to move up and down; the injection printing nozzle is connected with a liquid binder box, the injection printing nozzle can spray liquid binder on the material frame, the sintering furnace can heat and sinter metal formed parts, a heating element is arranged in the sintering furnace, and the sintering furnace is connected with the discharging platform.
2. The 3D printed metal forming device of claim 1, wherein: the powder recovery device is further arranged and can recover metal powder on the material rack.
3. The 3D printed metal forming device of claim 1, wherein: the sintering furnace is connected with an air inlet system and a vacuum system, the air inlet system comprises an air inlet, the air inlet is communicated with an inner cavity of the sintering furnace, and an air inlet valve is arranged between the air inlet and the sintering furnace; the vacuum system comprises a vacuum pump and a valve, the vacuum pump can vacuumize the sintering furnace, and the valve is arranged between the vacuum pump and the sintering furnace.
4. The 3D printed metal forming device of claim 1, wherein: the work or material rest is open-ended container in the top, and is a plurality of the work or material rest can superpose and place, the degree of depth of work or material rest is than the height of metal forming part big.
5. The 3D printed metal forming device of claim 1, wherein: the metal forming part loading and unloading device comprises a rack and a lifting platform, and is characterized by further comprising a manipulator, wherein the manipulator is arranged between the rack and the sintering furnace, the rack can be placed on the lifting platform by the manipulator, and a metal forming part can be fed into the sintering furnace or taken out of the sintering furnace by the manipulator.
6. The 3D printed metal forming device of claim 1, wherein: the sintering furnace is of a cuboid structure and is provided with a top gate and a side gate, the top gate is arranged at the top of the sintering furnace, and the side gate is arranged on the side surface of the sintering furnace; the sintering furnace is further connected with a push rod mechanism, and the push rod mechanism can push the metal forming part in the sintering furnace.
7. The 3D printed metal forming device of claim 6, wherein: and a conveying mechanism is arranged between the lifting platform and the sintering furnace, and can convey the metal forming part and the material rack into the sintering furnace.
8. The 3D printed metal forming device of claim 1, wherein: the heating element is arranged on the side wall of the sintering furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922197601.7U CN211071830U (en) | 2019-12-10 | 2019-12-10 | 3D prints metal forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922197601.7U CN211071830U (en) | 2019-12-10 | 2019-12-10 | 3D prints metal forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211071830U true CN211071830U (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922197601.7U Active CN211071830U (en) | 2019-12-10 | 2019-12-10 | 3D prints metal forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211071830U (en) |
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2019
- 2019-12-10 CN CN201922197601.7U patent/CN211071830U/en active Active
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Address after: No. 365, Xinxing 1st Road, Cixi hi tech Industrial Development Zone, Ningbo City, Zhejiang Province, 315300 Patentee after: Ningbo Hengpu Vacuum Technology Co.,Ltd. Address before: 315300 no.521 Haitong Road, Cixi City, Ningbo City, Zhejiang Province Patentee before: NINGBO HIPER VACUUM TECHNOLOGY Co.,Ltd. |
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Address after: No. 365, Xinxing 1st Road, Cixi hi tech Industrial Development Zone, Ningbo City, Zhejiang Province, 315300 Patentee after: Ningbo Hengpu Technology Co.,Ltd. Address before: No. 365, Xinxing 1st Road, Cixi hi tech Industrial Development Zone, Ningbo City, Zhejiang Province, 315300 Patentee before: Ningbo Hengpu Vacuum Technology Co.,Ltd. |