CN206047019U - A kind of external strengthening system of 3D printing core - Google Patents
A kind of external strengthening system of 3D printing core Download PDFInfo
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- CN206047019U CN206047019U CN201620756959.2U CN201620756959U CN206047019U CN 206047019 U CN206047019 U CN 206047019U CN 201620756959 U CN201620756959 U CN 201620756959U CN 206047019 U CN206047019 U CN 206047019U
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Abstract
This utility model is applied to 3D printing core Foundry Production field, and in particular to a kind of external strengthening system of 3D printing core.The system includes：Double-deck sandbox, the double-deck sandbox include：Interior case, base plate, cushion block, outer container and top board；Negative pressure system, the negative pressure system include：Air extraction connector, electric controlled regulating valve, connecting pipe, purification tank and vacuum pump；Air blocking thin film, the air blocking thin film include the plastic sheeting for overlaying at the top of sandbox and 3D cores are peripheral, enter sandbox for intercepting gas in ambient atmos and core, make sandbox be internally formed closed state, form negative pressure state when negative pressure system runs.Using system of the present utility model, the external intensity of 3D printing core is improve, be allowed to be enough to resist molten iron buoyancy, and dry sand used can be recycled, production cost is substantially reduced, and can meet the production process needs of multi items foundry goods.
Description
Technical field
This utility model is applied to 3D printing core Foundry Production field, and in particular to a kind of outside of 3D printing core is strong
Change system.
Background technology
With the popularization and application of 3D printing technique, the method for carrying out Foundry Production using 3D printing core at present exists
Gradually popular in industry, its casting flow process includes core printing, flow coat drying, assembly of sand core and cast, finally gives required casting
Part.The technology is capable of achieving various labyrinths without using mould type, considering the molding of traditional handicraft and remove material problem
The disposable high-precision printing of core, increased the motility of casting Technology Design method, while die manufacturing cost has been saved,
It is very suitable for the casting of testpieces or small lot foundry goods；As the cost that 3D printing core is printed is of a relatively high, it is to save to beat
This is printed as, while shortening printing interval, it is intended that reduce the design volume of 3D printing core as far as possible, but in order to ensure that core has
Buoyancy in sufficient intensity opposing molten iron cavity filling process, this is accomplished by strengthening core periphery.Prior art is most to be adopted
The core being completed is put in steel sandbox, periphery carries out resin sand landfill, it is to obtain enough peripheral intensity but this
Method is often difficult to find that the sandbox of matching, so that consuming substantial amounts of resin sand consumption, causes production cost to improve, it is impossible to
Meet the production needs of multi-assortment production.The patent documentation of such as Publication No. CN103658527A, discloses a kind of refrigerator cold
The vacuum sealed molding method of case adsorption mould mould cast is hidden, which adopts resin sand, cause core strength not enough, be easily deformed.
Therefore how to design it is a kind of can reduce cost and can strengthen the system of core again become the problem of this area urgent need to resolve.
Utility model content
This utility model is directed to the deficiencies in the prior art, it is proposed that a kind of external strengthening system of 3D printing core, this is
System instead of resin sand using dry sand, while the external intensity of 3D printing core can be improved, and dry sand used can be recycled, and it is raw
Produce cost to substantially reduce, meet the production process demand of multi items foundry goods.
To solve above-mentioned technical problem, the technical scheme that this utility model is taken is：A kind of outside of 3D printing core is strong
Change system, including：Double-deck sandbox, the double-deck sandbox include：Interior case, base plate, cushion block, outer container and top board, wherein, the interior case
For semiclosed casing, connected by 1 lower boxboard and 4 side box plates and formed, the lower boxboard and side box plate surface are equipped with aerofluxuss
Groove, its periphery are provided with sand net；The base plate is located at the interior bottom portion, and the base plate is provided with multiple with the lower boxboard aerofluxuss
The aspirating hole of groove dislocation；The cushion block is located on the base plate, and its top surface is connected with the interior bottom face, in carrying
Case；The outer container is to be connected the peripheral casing for being formed by 4 side box plates, for being nested in the interior case, horizontal stroke is provided with outside which
To reinforcement and waling；The top board is located at the top of the sandbox, for sealing the interior case and outer container；Negative pressure system
System, the negative pressure system include：Air extraction connector, electric controlled regulating valve, connecting pipe, purification tank and vacuum pump, wherein, the pumping
Joint is fixedly installed on the side wall of the purification tank, and its one end runs through the side wall of the purification tank and extends into purification tank
In, the other end is connected with the aspirating hole on the interior bottom plate, and the electric controlled regulating valve is taken out with described located at the air extraction connector
Between pore, for monitoring air pressure in the sandbox, and control atmospheric pressure value is adjusted, described connecting pipe one end and the purification tank
It is connected, the other end is connected with the vacuum pump, for aerofluxuss, the vacuum pump is located at system end, for extracting the sand
Gas in case；Air blocking thin film, the air blocking thin film include the plastic sheeting for overlaying at the top of sandbox and 3D cores are peripheral, for hindering
Gas enters sandbox in the ambient atmos and core, makes sandbox be internally formed closed state, forms negative when negative pressure system runs
Pressure condition.
Inventor has found, according to the system of this utility model embodiment, substitutes resin sand using dry sand, improve 3D printing
The external intensity of core, is allowed to be enough to resist molten iron buoyancy, and dry sand used can be recycled, and production cost is substantially reduced；This
Outer double-deck sandbox can be made according to the casting mold overall size of maximum product, can meet the production process needs of multi items foundry goods；Together
When greatly reduced due to resin sand consumption, casting process casting mold gas forming amount reduces, and the pore class defect of foundry goods is obviously improved.
According to embodiment of the present utility model, the purification tank is tank, for fuel gas and dust mixture is separated, precipitation
Purify the gas that the negative pressure system is extracted out；The purification tank also includes outlet, and which is located at the bottom of the purification tank, passes through
Fuel gas and dust mixture detached precipitation is discharged.
According to embodiment of the present utility model, the interior case and outer container are welding formation, the cushion block and base plate, interior case
With cushion block, outer container and base plate, top board is welding with the connection of interior case, outer container, it is preferred that for seamless full weld, for ensureing which
Overall sealing.
According to embodiment of the present utility model, the lower boxboard and side box plate of the interior case are 20mm steel plates, each steel plate
30% area arranges air discharge duct, and the sand net is wire quality, and its aperture is less than 40 mesh sand grains diameters, is riveted on the aerofluxuss
Groove periphery.
According to embodiment of the present utility model, the base plate is the square plate that thickness is 80mm, and its length and width size compares institute
State that interior case is each to go out greatly 160mm, the uniform multiple aspirating holes in steel plate center, preferably 3, in aspirating hole, car has screw thread, for docking
The negative pressure system air extraction connector；The cushion block is the square plate of high 80mm.
According to embodiment of the present utility model, the outer container is 20mm steel plates, and its overall size is identical with the base plate,
And its both sides external is also arranged with 4 and hangs handle.
According to embodiment of the present utility model, doughnut-shaped steel plate of the top board for thickness 20mm, its internal ring size and interior case
Identical, its outer shroud size is identical with outer container.
According to embodiment of the present utility model, the air extraction connector is got on the bus the screw thread supporting with aspirating hole, can screw in institute
State aspirating hole.
In another aspect of the present utility model, this utility model provides a kind of described system and carries out the side of core reinforcing
Method, according to embodiment of the present utility model, comprises the steps：A. prepare the dry silica sand with the capacity such as the double-deck sandbox, carry
It is front that 3D cores are combined and are installed；B. the uniform shop fixtures sand in the double-deck sandbox, by the 3D core overlay films for combining, and is put into
In the sandbox, continue quicksand to core is completely covered, only expose flow inlet and gas outlet position；C. on top dry sand surface
One layer of plastic gas barrier thin film is covered, continues back-up sand, pouring basin is set at flow inlet, is follow-up pouring practice；D. open
The negative pressure system, after a period of time, controls the regulating valve, makes the Absolute truth reciprocal of duty cycle in the sandbox be less than standard atmosphere
Pressure；E. under negative pressure effect, the dry sand in the sandbox is integrally tightened up, and is increased 3D cores periphery intensity, is now carried out
Pouring practice, it is to be cast after the completion of, carry out pressurize and dropped back from negative pressure for a period of time.
According to embodiment of the present utility model, in step a, the dry silica sand is 20-40 mesh；In step b
In, the height of the shop fixtures sand is 200mm；In step c, sand-pack height is 100mm；It is in step d, described exhausted
To normal atmosphere of the vacuum less than 0.5 times；In step e, the dwell time after the casting complete is 15min.
This utility model at least has the advantages that：
（1）This utility model instead of resin sand using dry sand, while the external intensity of 3D printing core can be improved, be allowed to
Be enough to resist molten iron buoyancy；
（2）Can be recycled using dry sand used by the method that this system is adopted, production cost is substantially reduced；
（3）The double-deck sandbox can be made according to the casting mold overall size of maximum product, can meet the life of multi items foundry goods
Product process needs；
（4）As resin sand consumption greatly reduces, casting process casting mold gas forming amount reduces, and the pore class defect of foundry goods is obvious
Improve.
Description of the drawings
Fig. 1 is the structural representation of double-deck sandbox.
Fig. 2 is base plate sectional view.
Fig. 3 is negative pressure system structural representation.
Wherein, base plate 1, cushion block 2, interior case 3, outer container 4, top board 5, cross reinforcing 6, waling 7, sand net 8, aerofluxuss
Groove 9, aspirating hole 10 are hung 11, double-deck sandbox 12, electric controlled regulating valve 13, purification tank 14, connecting pipe 15, vacuum pump 16, are discharged
Mouth 17, air extraction connector 18.
Specific embodiment
In order that those skilled in the art more fully understand the technical solution of the utility model, with reference to specific embodiment
The utility model is described in further detail.The embodiments described below is exemplary, is only used for explaining that this practicality is new
Type, and it is not intended that to restriction of the present utility model.Unreceipted particular technique or condition in embodiment, according in the art
Document described by technology or condition or carry out according to product description.
This utility model provides a kind of external strengthening system of 3D printing core, according to embodiment of the present utility model,
Fig. 1 is the structural representation of double-deck sandbox, and Fig. 2 is base plate sectional view, and Fig. 3 is negative pressure system structural representation, with reference to Fig. 1, Fig. 2
With shown in Fig. 3, the system includes：Double-deck sandbox 12, negative pressure system and air blocking thin film, the double-deck sandbox include：Interior case 3, bottom
Plate 1, cushion block 2, outer container 4 and top board 5, wherein, the interior case is semiclosed casing, connects shape by 1 lower boxboard and 4 side box plates
Air discharge duct 9 is equipped with into, the lower boxboard and side box plate surface, its periphery is provided with sand net 8；The base plate is located at the interior bottom
Portion, the base plate are provided with multiple aspirating holes 10 with the lower boxboard air discharge duct dislocation；The cushion block is located on the base plate,
And its top surface is connected with the interior bottom face, for carrying interior case；The outer container is to be connected the peripheral case for being formed by 4 side box plates
Body, for being nested in the interior case, is provided with cross reinforcing 6 and waling 7 outside which；The top board is located at the sand
Box top, for sealing the interior case and outer container；The negative pressure system includes：Air extraction connector 18, electric controlled regulating valve 13, connecting tube
Road 15, purification tank 14 and vacuum pump 16, wherein, the air extraction connector is fixedly installed on the side wall of the purification tank, its one end
Through the purification tank side wall and extend in purification tank, the other end is connected with the aspirating hole on the interior bottom plate, institute
State electric controlled regulating valve to be located between the air extraction connector and the aspirating hole, for monitoring in the sandbox air pressure and adjusting control
Atmospheric pressure value；The air blocking thin film includes the plastic sheeting for overlaying at the top of sandbox and 3D cores are peripheral.
Inventor has found, according to the system of this utility model embodiment, substitutes resin sand using dry sand, improve 3D printing
The external intensity of core, is allowed to be enough to resist molten iron buoyancy, and dry sand used can be recycled, and production cost is substantially reduced；This
Outer double-deck sandbox can be made according to the casting mold overall size of maximum product, can meet the production process needs of multi items foundry goods；Together
When greatly reduced due to resin sand consumption, casting process casting mold gas forming amount reduces, and the pore class defect of foundry goods is obviously improved.
According to embodiment of the present utility model, with reference to shown in Fig. 3, the concrete species of the connecting pipe is unrestricted, only
Connection scavenging action can be played, described connecting pipe one end is connected with the purification tank, the other end is true with described
Empty pump connection, for aerofluxuss.
According to embodiment of the present utility model, the concrete species and unit type of the vacuum pump position is unrestricted, as long as
Extraction gas effect can be played, the vacuum pump is located at system end, for extracting the gas in the sandbox.
According to embodiment of the present utility model, the concrete species of the air blocking thin film and material are unrestricted, can be poly-
Vinyl film, polypropylene film or polyvinylidene chloride film, according to some embodiments of the present utility model, this utility model is excellent
Elect polyethylene film as, sandbox is entered for intercepting gas in ambient atmos and core, make sandbox be internally formed closed state, when
Negative pressure system forms negative pressure state when running.
According to embodiment of the present utility model, the concrete species of the purification tank is unrestricted, can for front yard with it is small-sized only
Change groove, sewage disposal purification tank or gas purification groove, according to some embodiments of the present utility model, this utility model is preferably gas
Body purification tank, more preferably tank, for fuel gas and dust mixture is separated, the gas that the precipitation purification negative pressure system is extracted out
Body；The purification tank also includes outlet 17, and which is located at the bottom of the purification tank, by will be fuel gas and dust mixture detached
Precipitation is discharged.
According to embodiment of the present utility model, with reference to shown in Fig. 1, the making forming process and method of the interior case and outer container
It is unrestricted, for welding, riveting or formation can be engaged, according to some embodiments of the present utility model, this utility model is excellent
Elect welding formation, and the cushion block and base plate, interior case and cushion block, outer container and base plate as, top board is equal with the connection of interior case, outer container
To weld, it is furthermore preferred that be seamless full weld, for ensureing its overall sealing.
Then the double-deck sandbox production order makes the outer container first to make the interior case, and the cushion block is welded
On the base plate, the Inner casees on the cushion block top surface, are welded, then by the outer container nested sealing described Inner casees, finally will top
Plate weld is fully sealed, only surplus flow inlet and gas outlet position at the Inner casees and the top of outer container, is easy to follow-up cast.
According to embodiment of the present utility model, the concrete material species of the lower boxboard and side box plate of the interior case is unrestricted
System, can be irony, copper or steel, and according to some embodiments of the present utility model, it is thick that this utility model is preferably 20mm
Steel plate, and the area of each steel plate 30% arranges air discharge duct, the concrete material species of the sand net is unrestricted, can for iron wire,
Copper wire or steel wire, according to some embodiments of the present utility model, this utility model is preferably wire quality, and its aperture is less than 40
Mesh sand grains diameter, the sand net are unrestricted with the concrete connected mode of the air discharge duct, can be welding, riveting or engagement
Formed, according to some embodiments of the present utility model, this utility model is preferably and is riveted on the air discharge duct periphery.
According to embodiment of the present utility model, with reference to shown in Fig. 1 and 2, the concrete material species of the base plate and cushion block and
Shape is unrestricted, and material can be irony, aluminum or steel, and shape can be circular, square, taper or annular, according to
Some embodiments of the present utility model, base plate described in the utility model are preferably square plate of the thickness for 80mm, its length and width chi
It is very little it is more each than the interior case go out greatly 160mm, the uniform multiple aspirating holes in steel plate center, preferably 3, in aspirating hole, car has screw thread, uses
The negative pressure system air extraction connector is docked in spiral；Square plate of the cushion block preferably for high 80mm.
According to embodiment of the present utility model, the concrete material species of the outer container is unrestricted, material can for irony,
Copper, aluminum or steel, according to some embodiments of the present utility model, this utility model is preferably 20mm steel plates, its wheel
Wide size is identical with the base plate, and its both sides external is also arranged with 4 and hangs 11.
According to embodiment of the present utility model, the concrete material species of the top board and shape are unrestricted, and material can be with
For irony, copper, aluminum or steel, shape can be circular, square, taper or annular, according to more of the present utility model
Embodiment, this utility model are preferably the doughnut-shaped steel plate of thickness 20mm, and its internal ring size is identical with interior case, its outer shroud size with it is outer
Case is identical.
According to embodiment of the present utility model, the air extraction connector is unrestricted with the concrete connected mode of aspirating hole, can
Think welding, riveting or spiral docking, according to some embodiments of the present utility model, this utility model is preferably spiral docking,
It is furthermore preferred that the air extraction connector is got on the bus the screw thread supporting with aspirating hole, the aspirating hole can be screwed in.
In another aspect of the present utility model, this utility model carries out core reinforcing using described system there is provided a kind of
Method, according to embodiment of the present utility model, comprise the following steps：
A. prepare and the dry silica sand of capacity 20-40 purposes such as the double-deck sandbox, in advance 3D cores are combined and are installed.
B. the 3D cores for combining are covered with described being used for by the uniform bed load for spreading 200mm height in the double-deck sandbox
In obstruct ambient atmos and core, gas is into sandbox and makes sandbox be internally formed the air blocking thin film of closed state, and is put into described
In sandbox, continue quicksand to core is completely covered, only expose flow inlet and gas outlet position.
According to embodiment of the present utility model, with reference to shown in Fig. 1, the double-deck sandbox include interior case 3, base plate 1, cushion block 2,
The making forming process and method of outer container 4 and top board 5, the interior case and outer container is unrestricted, can be welding, rivet or nibble
Close and formed, according to some embodiments of the present utility model, this utility model is preferably welded and formed, and the cushion block and bottom
Plate, interior case and cushion block, outer container and base plate, top board are welding with the connection of interior case, outer container, it is furthermore preferred that being seamless full weld, use
In its overall sealing of guarantee.
C. one layer of plastic gas barrier thin film is covered on top dry sand surface, continue to fill out dry sand of the paving height for 100mm,
Pouring basin is set at flow inlet, is follow-up pouring practice.
According to embodiment of the present utility model, the air blocking thin film includes the plastics for overlaying at the top of sandbox and 3D cores are peripheral
Thin film, the concrete species of the air blocking thin film and material it is unrestricted, can be polyethylene film, polypropylene film or poly- inclined two
Vinyl chloride film, according to some embodiments of the present utility model, this utility model is preferably polyethylene film, for intercepting the external world
In gas and core, gas enters sandbox, makes sandbox be internally formed closed state, forms negative pressure state when negative pressure system runs.
D. the negative pressure system is opened, after a period of time, the regulating valve is controlled, is made the Absolute truth reciprocal of duty cycle in the sandbox
Normal atmosphere less than 0.5 times.
E. under negative pressure effect, the dry sand in the sandbox is integrally tightened up, and increases 3D cores periphery intensity, now
Carry out pouring practice, it is to be cast after the completion of, carry out pressurize 15min recession from negative pressure.
According to embodiment of the present utility model, the negative pressure system includes：Air extraction connector 18, electric controlled regulating valve 13, connection
Pipeline 15, purification tank 14 and vacuum pump 16, wherein, the air extraction connector is fixedly installed on the side wall of the purification tank, one
End is run through the side wall of the purification tank and is extended in purification tank, and the other end is connected with the aspirating hole on the interior bottom plate,
The electric controlled regulating valve is located at the junction of the air extraction connector and the aspirating hole, for monitoring air pressure in the sandbox, and
Adjust control atmospheric pressure value；The air blocking thin film includes the plastic sheeting for overlaying at the top of sandbox and 3D cores are peripheral.
According to embodiment of the present utility model, with reference to shown in Fig. 3, the concrete species of the connecting pipe is unrestricted, only
Connection scavenging action can be played, described connecting pipe one end is connected with the purification tank, the other end is true with described
Empty pump connection, for aerofluxuss.
According to embodiment of the present utility model, the concrete species and unit type of the vacuum pump position is unrestricted, as long as
Extraction gas effect can be played, the vacuum pump is located at system end, for extracting the gas in the sandbox.
Inventor has found, according to the system of this utility model embodiment, substitutes resin sand using dry sand, improve 3D printing
The external intensity of core, is allowed to be enough to resist molten iron buoyancy, and dry sand used can be recycled, and production cost is substantially reduced；This
Outer double-deck sandbox can be made according to the casting mold overall size of maximum product, can meet the production process needs of multi items foundry goods；Together
When greatly reduced due to resin sand consumption, casting process casting mold gas forming amount reduces, and the pore class defect of foundry goods is obviously improved.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features, the knot described with reference to the embodiment or example
Structure, material or feature are contained at least one embodiment of the present utility model or example.In this manual, to above-mentioned art
The schematic representation of language is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or
Person's feature can be combined in one or more any embodiment or example in an appropriate manner.
In description of the present utility model, it is to be understood that term " on ", D score, "left", "right", " interior ", " outward " etc.
The orientation or position relationship of instruction is, based on orientation shown in the drawings or position relationship, to be for only for ease of description this utility model
Describe with simplifying, rather than indicate or imply that the device or element of indication must be with specific orientation, with specific orientation structure
Make and operate, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second " are only used for describing mesh
, and it is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, limit
Surely there is " first ", the feature of " second " can be expressed or implicitly include one or more this feature.It is new in this practicality
In the description of type, unless otherwise stated, " multiple " are meant that two or more.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can be mechanically connected, or put connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in this utility model.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to restriction of the present utility model, one of ordinary skill in the art is in scope of the present utility model
It is interior above-described embodiment to be changed, be changed, being replaced and modification, simultaneously for one of ordinary skill in the art, foundation
The thought of the application, will change in specific embodiments and applications.
Claims (8)
1. a kind of external strengthening system of 3D printing core, it is characterised in that include：
Double-deck sandbox, the double-deck sandbox include：Interior case, base plate, cushion block, outer container and top board, wherein,
The interior case is semiclosed casing, is connected by 1 lower boxboard and 4 side box plates and is formed, the lower boxboard and side box plate table
Face is equipped with air discharge duct, and its periphery is provided with sand net；
The base plate is located at the interior bottom portion, and the base plate is provided with multiple pumpings with the lower boxboard air discharge duct dislocation
Hole；
The cushion block is located on the base plate, and its top surface is connected with the interior bottom face, for carrying interior case；
The outer container is to be connected the peripheral casing for being formed by 4 side box plates, for being nested in the interior case, horizontal stroke is provided with outside which
To reinforcement and waling；
The top board is located at the top of the sandbox, for sealing the interior case and outer container；
Negative pressure system, the negative pressure system include：Air extraction connector, electric controlled regulating valve, connecting pipe, purification tank and vacuum pump, its
In, the air extraction connector is fixedly installed on the side wall of the purification tank, and its one end runs through the side wall of the purification tank and extends
Into in purification tank, the other end is connected with the aspirating hole on the interior bottom plate, and the electric controlled regulating valve is connect located at the pumping
Head and the aspirating hole between, for monitoring air pressure in the sandbox, and adjust control atmospheric pressure value, described connecting pipe one end with
The purification tank is connected, and the other end is connected with the vacuum pump, and for aerofluxuss, the vacuum pump is located at system end, is used for
Extract the gas in the sandbox；
Air blocking thin film, the air blocking thin film include the plastic sheeting for overlaying at the top of sandbox and 3D cores are peripheral, for intercepting the external world
In gas and core, gas enters sandbox, makes sandbox be internally formed closed state, forms negative pressure state when negative pressure system runs.
2. system according to claim 1, it is characterised in that the purification tank is tank, for fuel gas and dust is mixed
Thing is separated, the gas that the precipitation purification negative pressure system is extracted out；The purification tank also includes outlet, and which is located at the purification tank
Bottom, by by it is fuel gas and dust mixture detached precipitation discharge.
3. system according to claim 1, it is characterised in that the interior case and outer container are welding and are formed, the cushion block
With base plate, interior case and cushion block, outer container and base plate, the connection of top board and interior case, outer container is welding, described to be welded as without sowing
Weldering, for ensureing its overall sealing.
4. system according to claim 1, it is characterised in that the lower boxboard and side box plate of the interior case is 20mm thickness steel
Plate, the area of each steel plate 30% arrange air discharge duct, and the sand net is wire quality, and its aperture is less than 40 mesh sand grains diameters, riveting
In air discharge duct periphery.
5. system according to claim 1, it is characterised in that the base plate is thickness for the square plate of 80mm, its length
Wide size is more each than the interior case to go out greatly 160mm, uniform 3 aspirating holes in steel plate center, and in aspirating hole, car has screw thread, for docking
State negative pressure system air extraction connector；The cushion block is the square plate of high 80mm.
6. system according to claim 1, it is characterised in that the outer container is 20mm steel plates, its overall size and institute
State base plate identical, and its both sides external is also arranged with 4 and hangs handle.
7. system according to claim 1, it is characterised in that doughnut-shaped steel plate of the top board for thickness 20mm, its internal ring
Size is identical with interior case, and its outer shroud size is identical with outer container.
8. system according to claim 1, it is characterised in that the air extraction connector is got on the bus the spiral shell supporting with aspirating hole
Stricture of vagina, can screw in the aspirating hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620756959.2U CN206047019U (en) | 2016-07-19 | 2016-07-19 | A kind of external strengthening system of 3D printing core |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620756959.2U CN206047019U (en) | 2016-07-19 | 2016-07-19 | A kind of external strengthening system of 3D printing core |
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| CN206047019U true CN206047019U (en) | 2017-03-29 |
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| CN201620756959.2U Withdrawn - After Issue CN206047019U (en) | 2016-07-19 | 2016-07-19 | A kind of external strengthening system of 3D printing core |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106040987A (en) * | 2016-07-19 | 2016-10-26 | 宁夏共享模具有限公司 | External reinforcement system of 3D printing mold core |
| CN108080585A (en) * | 2018-02-09 | 2018-05-29 | 周胜豪 | A kind of console mode sandbox |
| CN110271078A (en) * | 2019-06-05 | 2019-09-24 | 河北智达维创电子科技有限公司 | A kind of 3D printer sand-leakproof device |
-
2016
- 2016-07-19 CN CN201620756959.2U patent/CN206047019U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106040987A (en) * | 2016-07-19 | 2016-10-26 | 宁夏共享模具有限公司 | External reinforcement system of 3D printing mold core |
| CN108080585A (en) * | 2018-02-09 | 2018-05-29 | 周胜豪 | A kind of console mode sandbox |
| CN108080585B (en) * | 2018-02-09 | 2024-04-19 | 广州捷和电子科技有限公司 | Floor type sand box |
| CN110271078A (en) * | 2019-06-05 | 2019-09-24 | 河北智达维创电子科技有限公司 | A kind of 3D printer sand-leakproof device |
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