CN108714692A - Ink jet type 3D printing equipment and its production method - Google Patents
Ink jet type 3D printing equipment and its production method Download PDFInfo
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- CN108714692A CN108714692A CN201810609004.8A CN201810609004A CN108714692A CN 108714692 A CN108714692 A CN 108714692A CN 201810609004 A CN201810609004 A CN 201810609004A CN 108714692 A CN108714692 A CN 108714692A
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- metal powder
- powder tank
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/50—Means for feeding of material, e.g. heads
- B22F12/53—Nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/10—Formation of a green body
- B22F10/14—Formation of a green body by jetting of binder onto a bed of metal powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/60—Treatment of workpieces or articles after build-up
- B22F10/68—Cleaning or washing
-
- 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
-
- 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
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The present invention discloses a kind of ink jet type 3D printing equipment and its production method, ink jet type 3D printing equipment include：For storing the storing powder tank of metal powder, the printing powder tank for being set to the storing powder tank side, the binder ink-jet printing device being installed on above printing powder tank, the binder being loaded into binder ink-jet printing device and the transfer packed structures for being installed on above storing powder tank and printing powder tank and be used to the metal powder transfer of storing powder tank upper surface being accumulated to printing powder tank upper surface, the storing powder tank upper end is respectively arranged with the first, second notch with printing powder tank upper end butted part, so that the storing powder tank upper end is connected to printing powder tank upper end；Storing powder tank bottom is provided with a liftable feeding support plate；The printing powder tank bottom is provided with a liftable printing support plate.Ink jet type 3D printing equipment of the present invention significantly reduces cost, and more flexible faster, molding 3 D stereo object surface quality higher.
Description
Technical field：
The present invention relates to 3D printing technique field, a kind of ink jet type 3D printing equipment and its production method are refered in particular to.
Background technology：
In traditional increasing material manufacturing or three-dimensional manufacturing technology, three-dimension object structure is carried out in a manner of gradually or successively,
Referred to as 3D printing stereo shaping technology.
The technology of the current comparative maturity of 3D printing technique field be by photo-curable liquid resin in visible light or
Solidification under ultraviolet light effect carries out a layer accumulation molding, referred to as liquid resin Stereolithography technology.
For powder printing stereo shaping technology at present using it is more be successively be sintered by high frequency lasers powder at
Type technology.Laser sintering technology uses expensive laser emitter and high-cost high frequency lasers due to needing so that it is answered
With being only confined to military research, and using being limited in industry and civilian manufacturing industry, and it is laser sintered for workpiece
Control in surface accuracy is also limited, this makes its difficulty in terms of the post-processing of precision manufactureing increase, especially in metal powder
It is laser sintered during, since the fusing point of metal is relatively high, need to expend higher laser sintered cost, and metal powder
Oxidation is easy in high temperature, to cause safety issue.This makes the laser sintering and moulding technique of metal powder industrially
Application it is more limited.
Apply the ink-printing techniques of comparative maturity at present for ink-jet forming technique, but it molding to 3D printing is answered
With since the requirement to marking ink is harshness and diversity, the preparation technique of ink is always emphasis and key technology.
In view of this, the present inventor proposes following technical scheme.
Invention content：
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of ink jet type 3D printing equipment and its producers
Method.
In order to solve the above-mentioned technical problem, present invention employs the first following technical solutions：The ink jet type 3D printing is set
It is standby to include：For storing the storing powder tank of metal powder, the printing powder tank for being set to the storing powder tank side, being installed on printing powder
Binder ink-jet printing device above slot, the binder being loaded into binder ink-jet printing device and it is installed on storage
Above feed powder slot and printing powder tank and for the metal powder transfer of storing powder tank upper surface to be accumulated to printing powder tank upper surface
Transfer packed structures, which is respectively arranged with the first, second notch with printing powder tank upper end butted part, with
The storing powder tank upper end is set to be connected to printing powder tank upper end；Storing powder tank bottom is provided with a liftable feeding support plate；
The printing powder tank bottom is provided with a liftable printing support plate.
Furthermore, in above-mentioned technical proposal, the binder includes following raw material：Resin material, low pole are molten
Agent, surfactant, wetting agent, water；Either, the binder includes following raw material：Resin material, surfactant,
Cosolvent, water；Either, the binder includes following raw material：Resin material, weak polar solvent, surfactant, hydrotropy
Agent.
Furthermore, in above-mentioned technical proposal, the resin material is phenolic resin, Lauxite, polyurethane, epoxy
One or more kinds of combination in resin；The weak polar solvent be ethyl alcohol, isopropanol, propyl alcohol, ethyl acetate and water and its
Combination.
Furthermore, in above-mentioned technical proposal, the binder ink-jet printing device is installed on an XY driving mechanisms
On, which is driven by the XY driving mechanisms to realize in X-axis and Y direction movement.
Furthermore, in above-mentioned technical proposal, the binder ink-jet printing device includes pedestal and is installed on
It printing head on the pedestal and supplies the binder feed mechanism of binder for the printing head and is installed on the outside of pedestal
Curing light source.
In order to solve the above-mentioned technical problem, present invention employs following second of technical solutions：The ink jet type 3D printing is set
Standby production method includes following work step：
Step 1：Transfer packed structures and binder ink-jet printing device are adjusted with respect to storing powder tank and prints powder tank
After height, starting device；
Step 2：By driving feeding support plate lifting height A, the metal powder in storing powder tank is made to move up height A；
Meanwhile support plate is printed by driving and moves down height A, so that the metal powder in printing powder tank is moved down height A, at this point, the storage
Metal powder upper surface and metal powder upper surface distance 2A in printing powder tank in feed powder slot；
Step 3：By the metal powder of storing powder tank upper end level A, uniformly transfer is laid in the printing to transfer packed structures
The top of metal powder in powder tank, with the evenly laid out one layer of metal powder bisque in metal powder the top in printing powder tank；
Binder ink-jet printing device is moved in print area with the jet binder on the metal powder bisque, and is sprayed by binder
Curing light source solidification in black formula printing equipment, with forming metal powder base；
Step 4：Step 3 is constantly repeated, with the deposit powder bed in metal powder base, until being stacked into default
Highly, metal powder module is formed with structure；
Step 5：Not glued metal powder is cleaned, metal powder module is taken out from printing powder tank, and be put into burning
Freezing of a furnace carries out double sintering molding, forms metallic mold.
Furthermore, in above-mentioned technical proposal, the metal powder is the aluminium powder that grain size is 30 microns；The binder
Include the raw material of following mass percent：20% epoxide resin material, 50% isopropanol, 15% surfactant, 15% help
Solvent.
Furthermore, in above-mentioned technical proposal, the metal powder is the iron powder that grain size is 20 microns；The binder
Include the raw material of following mass percent：35% water, 45% ethyl alcohol, 10% Lauxite, 5% surfactant, 5% wetting
Agent.
In order to solve the above-mentioned technical problem, present invention employs the third following technical solutions：The ink jet type 3D printing is set
Standby production method includes following work step：
Step 1：Transfer packed structures and binder ink-jet printing device are adjusted with respect to storing powder tank and prints powder tank
After height, starting device；
Step 2：By driving feeding support plate lifting height A, the metal powder in storing powder tank is made to move up height A；
Meanwhile support plate is printed by driving and moves down height A, so that the metal powder in printing powder tank is moved down height A, at this point, the storage
Metal powder upper surface and metal powder upper surface distance 2A in printing powder tank in feed powder slot；
Step 3：By the metal powder of storing powder tank upper end level A, uniformly transfer is laid in the printing to transfer packed structures
The top of metal powder in powder tank, with the evenly laid out one layer of metal powder bisque in metal powder the top in printing powder tank；
Binder ink-jet printing device is moved in print area with the jet binder on the metal powder bisque, with forming metal powder
Last base；
Step 4：Step 3 is constantly repeated, with the deposit powder bed in metal powder base, until being stacked into default
Highly, metal powder base material is formed with structure；
Step 5：Not glued metal powder is cleaned, metal powder base material is taken out from printing powder tank, and be put into baking
1 hour is toasted in case, temperature is set in 120-180 degrees Celsius, after base material cooling, cleans not glued metal powder, with
Form metal powder module；
Step 6：Further take out metal powder module, and by the metal powder module be put into sintering furnace carry out double sintering at
Type forms metallic mold.
Furthermore, in above-mentioned technical proposal, the metal powder is the nickel powder that grain size is 10 microns；The binder
Include the raw material of following mass percent：30% polyurethane material, 52% water, 10% surfactant, 8% cosolvent.
After adopting the above technical scheme, the present invention has the advantages that compared with prior art：
1, the production method of ink jet type 3D printing equipment of the present invention is to spray binder in metal powder by printing head
Upper primary solidification, and layer upon layer shaped three dimensional stereo object is carried out, and since binder has some strength, three printed
Dimension stereo object can be taken out with straight forming, then carry out high temperature sintering fusion, directly at firm closely knit metal pattern, the present invention
Ink jet type 3D printing equipment significantly reduces cost, and more flexible faster, molding 3 D stereo object surface quality higher.
2, the production method of ink jet type 3D printing equipment of the present invention is to spray binder in metal powder by printing head
Upper primary solidification, and layer upon layer shaped three dimensional stereo object is carried out, and cured by curing light source, and due to binder
With some strength, the 3 D stereo object printed can be taken out with straight forming, then carry out further high temperature sintering fusion, directly
It is connected into firm closely knit metal pattern, the production method of ink jet type 3D printing equipment of the present invention significantly reduces cost, and cleverer
Faster, molding 3 D stereo object surface quality higher living.
Description of the drawings：
Fig. 1 is the structural schematic diagram of ink jet type 3D printing equipment of the present invention.
Specific implementation mode：
With reference to specific embodiments and the drawings, the present invention is further described.
As shown in Figure 1, it is a kind of ink jet type 3D printing equipment comprising：Storing powder tank for storing metal powder 10
1, the binder ink-jet printing device for being set to the printing powder tank 2 of 1 side of storing powder tank, being installed on 2 top of printing powder tank
3, the binder that is loaded into binder ink-jet printing device 3 and it is installed on storing powder tank 1 and 2 top of printing powder tank is used in combination
In the transfer packed structures 4 that the metal powder transfer of 1 upper surface of storing powder tank is accumulated to 2 upper surface of printing powder tank, the storing
1 upper end of powder tank is respectively arranged with the first, second notch 11,21 with printing 2 upper end butted part of powder tank, so that the storing powder tank 1
Upper end is connected to 2 upper end of printing powder tank；1 bottom of storing powder tank is provided with a liftable feeding support plate 12；The printing
2 bottom of powder tank is provided with a liftable printing support plate 22.
1 lower end of storing powder tank is provided with the first elevating mechanism 13 for driving the feeding support plate 12 to be lifted,
First elevating mechanism 13 includes the first bearing component 131 for being installed on 1 lower end of storing powder tank, is arranged in the first bearing component
The first screw rod 132 in 131 and the first motor 133 for driving 132 forward or reverse of the first screw rod and the first belt
134, which is fixed on 12 lower end of feeding support plate, and when 132 forward or reverse of the first screw rod can drive this
Feeding support plate 12 carries out lifting action.
Printing 2 lower end of powder tank is provided with the second elevating mechanism 23 for driving the printing support plate 22 to be lifted,
Second elevating mechanism 23 includes the second bearing component 231 for being installed on 2 lower end of printing powder tank, is arranged in the second bearing component
The second screw rod 232 in 231 and the second motor 233 and the second belt for driving 232 forward or reverse of the second screw rod
234, which is fixed on 22 lower end of printing support plate, and when 232 forward or reverse of the second screw rod can drive this
It prints support plate 22 and carries out lifting action.
The binder includes following raw material：Resin material, weak polar solvent, surfactant, wetting agent, water；Or
Person is that the binder includes following raw material：Resin material, surfactant, cosolvent, water；Either, the binder
Including following raw material：Resin material, weak polar solvent, surfactant, cosolvent.It is used according to different metal powders
The binder of different raw material.
The resin material is phenolic resin, Lauxite, polyurethane, group one or more kinds of in epoxy resin
It closes；The weak polar solvent is ethyl alcohol, isopropanol, propyl alcohol, ethyl acetate and water and combinations thereof.
The binder ink-jet printing device 3 is installed in an XY driving mechanisms, the binder ink-jet printing device 3
It is driven by the XY driving mechanisms to realize in X-axis and Y direction movement, so that the binder ink-jet printing device 3 can be
Larger regional activity, to build the larger product in cross section.The XY driving mechanisms are conventional technical means, herein no longer one by one
It repeats.
The binder ink-jet printing device 3 include pedestal 31 and the printing head 32 that is installed on the pedestal 31 with
And it supplies the binder feed mechanism 33 of binder for the printing head 32 and is installed on the curing light source 34 in 31 outside of pedestal.Its
In, the curing light source 34 is infrared lamp, can generate 100-200 degrees Celsius of infrared light.
The transfer packed structures 4 are can be in the roller or scraper plate of storing powder tank 1 and printing 2 upper horizontal of powder tank movement.
As preferred embodiment, which is can be in the roller of storing powder tank 1 and printing 2 upper horizontal of powder tank movement.
Ink jet type 3D printing equipment of the present invention be by printing head spray binder primary solidification on metal powder, and
Layer upon layer shaped three dimensional stereo object is carried out, and since binder has some strength, the 3 D stereo object printed can
It is taken out with straight forming, then carries out further high temperature sintering fusion, directly at firm closely knit metal pattern, ink jet type of the present invention
3D printing equipment significantly reduces cost, and more flexible faster, molding 3 D stereo object surface quality higher.
The ink jet type 3D printing equipment has following three productions method：
The first production method：
The production method of ink jet type 3D printing equipment of the present invention includes following work step：
Step 1：Transfer packed structures 4 and binder ink-jet printing device 3 are adjusted with respect to storing powder tank 1 and printing powder
After the height of slot 2, starting device；
Step 2：By driving 12 lifting height A of feeding support plate, the metal powder 10 in storing powder tank 1 is made to move up
Height A；Meanwhile support plate 22 is printed by driving and moves down height A, so that the metal powder in printing powder tank 2 is moved down height A,
At this point, metal powder upper surface and metal powder upper surface distance 2A in printing powder tank 2 in the storing powder tank 1；
Step 3：By the metal powder of 1 upper end level A of storing powder tank, uniformly transfer is laid in this dozen to transfer packed structures 4
The top for printing metal powder in powder tank 2, with the evenly laid out one layer of metal powder powder in metal powder the top in printing powder tank 2
Layer；Binder ink-jet printing device 3 is moved in print area with the jet binder on the metal powder bisque, and by bonding
Curing light source 34 in agent ink-jet printing device 3 cures, with forming metal powder base；
Step 4：Step 3 is constantly repeated, with the deposit powder bed in metal powder base, until being stacked into default
Highly, metal powder module 100 is formed with structure；
Step 5：Not glued metal powder is cleaned, metal powder module is taken out from printing powder tank 2, and is put into
Sintering furnace carries out double sintering molding, forms metallic mold.
The sintering furnace must be the sintering furnace for having protective gas；The sintering furnace must have accurate temperature controlling and exhaust system
System, metallic mold Forming Quality is further ensured that with this.
The metal powder is the aluminium powder that grain size is 30 microns；The binder includes the former material of following mass percent
Material：20% epoxide resin material, 50% isopropanol, 15% surfactant, 15% cosolvent, the binder of this formula is to aluminium powder
With stronger cementitiousness and adhesion strength, it is ensured that aluminium powder material can be with closely knit bonding, and module can be complete after drying
Taking-up.
The production method of ink jet type 3D printing equipment of the present invention is to spray binder in metal powder (aluminium by printing head
Powder) on primary solidification, and carry out layer upon layer shaped three dimensional stereo object, and cured by curing light source, and due to viscous
Tying agent has some strength, and the 3 D stereo object printed can be taken out with straight forming, then carried out further high temperature sintering and melted
It closes, directly at firm closely knit metal pattern, the production method of ink jet type 3D printing equipment of the present invention significantly reduces cost, and
It is more flexible faster, molding 3 D stereo object surface quality higher.
Second of production method：
Second of production method and the first above-mentioned production method the difference is that：The metal powder is grain size
For 20 microns of iron powder；The binder includes the raw material of following mass percent：35% water, 45% ethyl alcohol, 10% ureaformaldehyde
Resin, 5% surfactant, 5% wetting agent.The binder of this formula has stronger cementitiousness to iron powder and bonds strong
Degree, it is ensured that aluminium powder material can be with closely knit bonding, and module can completely take out after drying.
The step of the step of second of production method is with the first above-mentioned production method is identical, no longer goes to live in the household of one's in-laws on getting married one by one herein
It states.
The production method of ink jet type 3D printing equipment of the present invention is to spray binder in metal powder (iron by printing head
Powder) on primary solidification, and carry out layer upon layer shaped three dimensional stereo object, and cured by curing light source, and due to viscous
Tying agent has some strength, and the 3 D stereo object printed can be taken out with straight forming, then carried out further high temperature sintering and melted
It closes, directly at firm closely knit metal pattern, the production method of ink jet type 3D printing equipment of the present invention significantly reduces cost, and
It is more flexible faster, molding 3 D stereo object surface quality higher.
The third production method：
The production method of ink jet type 3D printing equipment of the present invention includes following work step：
Step 1：Transfer packed structures 4 and binder ink-jet printing device 3 are adjusted with respect to storing powder tank 1 and printing powder
After the height of slot 2, starting device；
Step 2：By driving 12 lifting height A of feeding support plate, the metal powder in storing powder tank 1 is made to move up height
Spend A；Meanwhile support plate 22 is printed by driving and moves down height A, so that the metal powder in printing powder tank 2 is moved down height A, this
When, metal powder upper surface distance 2A in metal powder upper surface and printing powder tank 2 in the storing powder tank 1；
Step 3：By the metal powder of 1 upper end level A of storing powder tank, uniformly transfer is laid in this dozen to transfer packed structures 4
The top for printing metal powder in powder tank 2, with the evenly laid out one layer of metal powder powder in metal powder the top in printing powder tank 2
Layer；Binder ink-jet printing device 3 is moved in print area with the jet binder on the metal powder bisque, to be molded gold
Belong to powder base；
Step 4：Step 3 is constantly repeated, with the deposit powder bed in metal powder base, until being stacked into default
Highly, metal powder base material is formed with structure；
Step 5：Not glued metal powder is cleaned, metal powder base material is taken out from printing powder tank 2, and is put into
1 hour is toasted in baking oven, temperature is set in 120-180 degrees Celsius, after base material cooling, cleans not glued metal powder,
To form metal powder module；
Step 6：Further take out metal powder module, and by the metal powder module be put into sintering furnace carry out double sintering at
Type forms metallic mold.
The metal powder is the nickel powder that grain size is 10 microns；The binder includes the former material of following mass percent
Material：30% polyurethane material, 52% water, 10% surfactant, 8% cosolvent, this formula binder to nickel powder have compared with
Strong cementitiousness and adhesion strength, it is ensured that nickel powder material can be with closely knit bonding, and module can completely take out after drying.
The production method of ink jet type 3D printing equipment of the present invention is to spray binder in metal powder (nickel by printing head
Powder) on primary solidification, and carry out layer upon layer shaped three dimensional stereo object, and since binder has some strength, print
3 D stereo object can be taken out with straight forming, then further high temperature sintering fusion is carried out, directly at firm closely knit metal
The production method of model, ink jet type 3D printing equipment of the present invention significantly reduces cost, and more flexible faster, molding three-dimensional
Stereo object surface quality higher.
Certainly, the above is only a specific embodiment of the present invention, be not to limit the scope of the present invention, it is all according to
The equivalent change or modification that structure, feature and principle described in scope of the present invention patent is done should all be included in Shen of the present invention
It please be in the scope of the claims.
Claims (10)
1. ink jet type 3D printing equipment, it is characterised in that：It includes：For storing the storing powder tank (1) of metal powder, being set to
The printing powder tank (2) of storing powder tank (1) side, the binder ink-jet printing device being installed on above printing powder tank (2)
(3), the binder that is loaded into binder ink-jet printing device (3) and storing powder tank (1) and printing powder tank (2) are installed on
Top is simultaneously accumulated to the transfer accumulation for printing powder tank (2) upper surface for transferring the metal powder of storing powder tank (1) upper surface
Structure (4), storing powder tank (1) upper end with printing powder tank (2) upper end butted part be respectively arranged with the first, second notch (11,
21), so that storing powder tank (1) upper end is connected to printing powder tank (2) upper end；Storing powder tank (1) bottom is provided with one can
The feeding support plate (12) of lifting；Printing powder tank (2) bottom is provided with a liftable printing support plate (22).
2. ink jet type 3D printing equipment according to claim 1, it is characterised in that：The binder includes following former material
Material：Resin material, weak polar solvent, surfactant, wetting agent, water；Either, the binder includes following raw material：
Resin material, surfactant, cosolvent, water；Either, the binder includes following raw material：Resin material, low pole
Solvent, surfactant, cosolvent.
3. ink jet type 3D printing equipment according to claim 2, it is characterised in that：The resin material be phenolic resin,
One or more kinds of combination in Lauxite, polyurethane, epoxy resin；The weak polar solvent is ethyl alcohol, isopropanol, third
Alcohol, ethyl acetate and water and combinations thereof.
4. ink jet type 3D printing equipment according to claim 1, it is characterised in that：The binder ink-jet printing device
(3) it is installed in an XY driving mechanisms, which is driven by the XY driving mechanisms to realize in X
Axis and Y direction movement.
5. ink jet type 3D printing equipment according to any one of claims 1-4, it is characterised in that：The binder ink-jet
Formula printing equipment (3) includes pedestal (31) and the printing head (32) being installed on the pedestal (31) and is the printing head
(32) the binder feed mechanism (33) of supply binder and the curing light source (34) being installed on the outside of pedestal (31).
6. the production method of ink jet type 3D printing equipment, it is characterised in that：The production method includes following work step：
Step 1：Transfer packed structures (4) and binder ink-jet printing device (3) are adjusted with respect to storing powder tank (1) and printing
After the height of powder tank (2), starting device；
Step 2：By driving feeding support plate (12) lifting height A, the metal powder in storing powder tank (1) is made to move up height
Spend A；Meanwhile support plate (22) is printed by driving and moves down height A, so that the metal powder in printing powder tank (2) is moved down height
A, at this point, metal powder upper surface and metal powder upper surface distance 2A in printing powder tank (2) in the storing powder tank (1)；
Step 3：By the metal powder of storing powder tank (1) upper end level A, uniformly transfer is laid in this dozen to transfer packed structures (4)
The top for printing metal powder in powder tank (2), with the evenly laid out one layer of metal powder in metal powder the top in printing powder tank (2)
Last bisque；Binder ink-jet printing device (3) is moved in print area with the jet binder on the metal powder bisque, and
By curing light source (34) solidification in binder ink-jet printing device (3), with forming metal powder base；
Step 4：Step 3 is constantly repeated, with the deposit powder bed in metal powder base, until being stacked into default height
Degree forms metal powder module with structure；
Step 5：Not glued metal powder is cleaned, metal powder module is taken out from printing powder tank (2), and be put into burning
Freezing of a furnace carries out double sintering molding, forms metallic mold.
7. ink jet type 3D printing equipment according to claim 6, it is characterised in that：The metal powder is that grain size is 30 micro-
The aluminium powder of rice；The binder includes the raw material of following mass percent：20% epoxide resin material, 50% isopropanol,
15% surfactant, 15% cosolvent.
8. ink jet type 3D printing equipment according to claim 6, it is characterised in that：The metal powder is that grain size is 20 micro-
The iron powder of rice；The binder includes the raw material of following mass percent：35% water, 45% ethyl alcohol, 10% Lauxite,
5% surfactant, 5% wetting agent.
9. the production method of ink jet type 3D printing equipment, it is characterised in that：The production method includes following work step：
Step 1：Transfer packed structures (4) and binder ink-jet printing device (3) are adjusted with respect to storing powder tank (1) and printing
After the height of powder tank (2), starting device；
Step 2：By driving feeding support plate (12) lifting height A, the metal powder in storing powder tank (1) is made to move up height
Spend A；Meanwhile support plate (22) is printed by driving and moves down height A, so that the metal powder in printing powder tank (2) is moved down height
A, at this point, metal powder upper surface and metal powder upper surface distance 2A in printing powder tank (2) in the storing powder tank (1)；
Step 3：By the metal powder of storing powder tank (1) upper end level A, uniformly transfer is laid in this dozen to transfer packed structures (4)
The top for printing metal powder in powder tank (2), with the evenly laid out one layer of metal powder in metal powder the top in printing powder tank (2)
Last bisque；Binder ink-jet printing device (3) is moved in print area with the jet binder on the metal powder bisque, with
Forming metal powder base；
Step 4：Step 3 is constantly repeated, with the deposit powder bed in metal powder base, until being stacked into default height
Degree forms metal powder base material with structure；
Step 5：Not glued metal powder is cleaned, metal powder base material is taken out from printing powder tank (2), and be put into baking
1 hour is toasted in case, temperature is set in 120-180 degrees Celsius, after base material cooling, cleans not glued metal powder, with
Form metal powder module；
Step 6：Metal powder module is further taken out, and the metal powder module is put into sintering furnace and carries out double sintering molding, shape
At metallic mold.
10. ink jet type 3D printing equipment according to claim 9, it is characterised in that：The metal powder is that grain size is 10
The nickel powder of micron；The binder includes the raw material of following mass percent：30% polyurethane material, 52% water, 10% table
Face activating agent, 8% cosolvent.
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