CN110125415A - A kind of bar remelting direct write molding equipment and bar remelting forming method - Google Patents
A kind of bar remelting direct write molding equipment and bar remelting forming method Download PDFInfo
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- CN110125415A CN110125415A CN201910453782.7A CN201910453782A CN110125415A CN 110125415 A CN110125415 A CN 110125415A CN 201910453782 A CN201910453782 A CN 201910453782A CN 110125415 A CN110125415 A CN 110125415A
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- bar
- remelting
- semi solid
- solid slurry
- barrel
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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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
Abstract
The present invention relates to increases material manufacturing technology fields, disclose a kind of bar remelting direct write molding equipment and bar remelting forming method, including feeding system, pulping system and formation system, feeding system is configured as storage bar made of hybrid solid particle and provides bar to pulping system；Pulping system includes slurrying barrel and can extend into slurrying barrel and relative to the extrusion push rod of slurrying barrel movement and rotation, slurrying barrel bottom is provided with heating device, for heating the part of the bar in slurrying barrel to form semi solid slurry, extrusion push rod is moved along the axis direction of slurrying barrel compresses bar to squeeze out and be molded on formation system by semi solid slurry.The bar formed using hybrid solid particle forms semi solid slurry, tissue is controllable, and the molding equipment structure is simple, at low cost, molded part even tissue as raw material by way of local heating.The forming method is convenient for controling effectively to the flow behavior of semi solid slurry.
Description
Technical field
The present invention relates to increases material manufacturing technology field more particularly to a kind of bar remelting direct write molding equipment and bar remeltings
Forming method.
Background technique
Increases material manufacturing technology is utilization is powdered, Filamentous metal or plastics etc. based on a kind of digital model file
Adhesive material carrys out the technology of forming part by layer-by-layer printing.Metal increasing material manufacturing technique based on high energy beam current
Usually using high energy beam current as heat source, the printing equipment construction is complicated and equipment, material cost are high；Meanwhile it being swept in high energy beam current
It is larger to retouch molded part temperature gradient in forming process, tissue is easily made to generate defect and biggish internal stress.
A kind of efficient metal 3D printing device and method of the patent disclosure of Patent No. CN106925783A, by liquid gold
The preparation process and increasing material manufacturing forming process for belonging to slurry combine, and scheme is directly fed using metal bath, make it with liquid
The form of stream continuously sprays, and when printing is rapidly cooled using cooling medium, and passes through the movement of print head and forming board,
Complete print procedure.However biggish solidification shrinkage can be generated in journey, directly making metal become solid-state from liquid shaping,
Cause molded part dimensional accuracy not high, tissue cannot be well controlled, and molded part will generate biggish internal stress.
The patent of Patent No. CN106623840A discloses a kind of alloy semi-solid spinning increasing material preparation facilities, will prepare
The process and increasing material manufacturing forming process of semi solid slurry combine, and save slurry transfer, forming is realized directly on forming board
Process.Its scheme is that molten metal is injected pulping device, is acted on by Quench forming core and obtains semi solid slurry, and passes through spinning pipe
Slurry is stacked into layer by layer and is moved on ground shaped platform by preset program, and then realizes that semisolid spinning increases material preparation.The party
Although method is consciously by spinning control appearance nuclear process, the preparation of semi solid slurry requires a large amount of uniform forming core cores
The heart, and need accurately to control holding temperature and soaking time grows up the control of behavior to primary particle with realizing, only logical
The chilling action of overwinding pressure pipe smooth domain will be difficult to prepare the controllable high viscosity semi solid slurry of flow behavior.
Based on the above issues, a kind of bar remelting direct write molding equipment is proposed, structure is simple, and molded part internal stress is small, coagulates
Gu shrinkage is small, the Forming Quality of molded part is improved.
Summary of the invention
It is an object of the invention to propose a kind of bar remelting direct write molding equipment and bar remelting forming method, structure letter
Single, the semi solid slurry of formation, tissue is controllable, and molded part internal stress is small, and solidification shrinkage amount is small, improves the molding matter of molded part
Amount.
To achieve this purpose, the present invention adopts the following technical scheme:
The present invention provides a kind of bar remelting direct write molding equipment, including feeding system, pulping system and formation system, institute
Feeding system is stated to be configured as storage bar made of hybrid solid particle and provide the bar to the pulping system；
The pulping system includes slurrying barrel and can extend into the slurrying barrel and the relatively described slurrying barrel shifting
Dynamic and rotation extrusion push rod, slurrying barrel bottom are provided with heating device, for will be described in the slurrying barrel
The part of bar is heated to form semi solid slurry, the extrusion push rod along the axis direction of the slurrying barrel move to
The bar is pressed to squeeze out the semi solid slurry；
The formation system, the formation system can be relatively moved with the pulping system, by the semi solid slurry
Material is molded on the formation system.
The bar that is formed by feeding system storage from hybrid solid particle simultaneously provides the bar, heating dress to pulping system
It sets and the part of bar is heated to form semi solid slurry, extrusion push rod is moved along the circumferential direction of slurrying barrel to be compressed not
With by semi solid slurry extrusion molding to shaped platform, which is the bar of thawing with the bar that hybrid solid particle is formed
Raw material forms semi solid slurry by way of local heating, and tissue is controllable, and forming process more cleans, the molding equipment knot
Structure is simple, reduces costs, and can make molded part even tissue, reduces tissue defects and internal stress, improves the mechanics of molded part
Performance, significantly improves the quality of molded part, and the cooperation of pulping system and formation system keeps forming process eased.
As a kind of preferred embodiment of above-mentioned bar remelting direct write molding equipment, the feeding system includes raw material box, defeated
Device and storage device are sent, for keeping in the bar, the conveying device is arranged under the raw material box raw material box
Side, for by the bar transportation to the storage device in the raw material box, the storage device to be configured as institute
Bar is stated to be adjusted to be arranged along the vertical direction and export.
Bar can be kept in by raw material box, be filled the bar transportation in raw material box to storing by conveying device
In setting, bar is arranged and is exported along the vertical direction by storage device, is entered in pulping system convenient for bar.
As a kind of preferred embodiment of above-mentioned bar remelting direct write molding equipment, the storage device includes rotating synchronously to set
The inner barrel and outer barrel set is formed with gap between the inner barrel and outer barrel, and the gap is for accommodating the bar, the interior bucket
Bottom plate between outer barrel is provided with discharge port, and the bar is by the discharge port output.Between between inner barrel and outer barrel
Gap enables bar to arrange along the vertical direction, through the rotation of inner barrel and outer barrel after bar and discharge port alignment, by discharging
Mouth output bar.
As a kind of preferred embodiment of above-mentioned bar remelting direct write molding equipment, slurrying barrel bottom is provided with printing
Nozzle is provided with the heating device on the printing nozzle.
As a kind of preferred embodiment of above-mentioned bar remelting direct write molding equipment, the bottom end for squeezing out push rod is provided with temperature
Detection device is spent, for detecting the temperature of the bar.The bottom for squeezing out push rod is arranged in temperature-detecting device, and bar, which has, to be passed
The property of heat, the temperature of bar is detected by temperature-detecting device, and then obtains the temperature of the semi solid slurry of preparation.
As a kind of preferred embodiment of above-mentioned bar remelting direct write molding equipment, including driving device and shaped platform, institute
It states driving device to be connected with the pulping system, and the pulping system is driven to move along setting path.
As a kind of preferred embodiment of above-mentioned bar remelting direct write molding equipment, the driving device is three shaft mechanical arms,
The free end of the three shaft mechanicals arm is connected with the pulping system, and drives the pulping system along three-dimensional direction moving.It is logical
The free end for crossing three shaft mechanical arms is connected with pulping system, to drive pulping system along three-dimensional direction moving, and then can form
The molded part of complex figure.
Further include molding auxiliary system as a kind of preferred embodiment of above-mentioned bar remelting direct write molding equipment, it is described at
Type auxiliary system includes seeking level controlling system and outfield emission system, and the level controlling system of seeking is configured as according to described half admittedly
The forming path of state slurry adjusts the position of the outfield emission system, and the outfield emission system is configured to the semisolid
Slurry is forged.The setting of molding auxiliary system makes molded part obtain more fine and close Coating combination, completes semi solid slurry
Deposition modeling layer by layer.
As a kind of preferred embodiment of above-mentioned bar remelting direct write molding equipment, the bar is by least two solid particles
It is suppressed after mixing.Bar is formed by compacting after mixing at least two solid particles, it can be straight by the bar remelting
Write forming equipment heats the part of bar, does not need directly to operate solid particle, forming process more cleans.
The present invention provides a kind of bar remelting forming method, using above-mentioned bar remelting direct write molding equipment system
It is standby, comprising steps of
S1, the bar made of hybrid solid particle is added in feeding system；
S2, by the bar transportation in the feeding system into the pulping system, pass through control heating dress
The heating condition set is so that the bar is partially formed semi solid slurry, and the extrusion condition by controlling the extrusion push rod
The semi solid slurry to be squeezed out；
S3, by the relative motion of the formation system and the pulping system, the semi solid slurry is molded into
On the formation system.
The bar remelting forming method, by controlling the heating condition of heating device so that bar is partially formed semisolid
Slurry, and by control squeeze out push rod extrusion condition semi solid slurry to be squeezed out and is molded on formation system, be convenient for pair
The flow behavior of semi solid slurry control effectively, and semi solid slurry shrinkage in deposition and process of setting is small, molding essence
Degree is high, the molded part even tissue of formation, reduces tissue defects and internal stress, improves the mechanical property of molded part, significantly improve
The quality of molded part.
Beneficial effects of the present invention:
Bar remelting direct write molding equipment proposed by the present invention is formed by feeding system storage by hybrid solid particle
Bar simultaneously provides the bar to pulping system, and heating device heats the part of bar to form semi solid slurry, squeezes out
Push rod is moved along the circumferential direction of slurrying barrel compresses the bar that does not melt with by semi solid slurry extrusion molding to shaped platform
On, the bar which is formed using hybrid solid particle forms semi solid slurry as raw material by way of local heating, tissue
Controllably, forming process more cleans, and the molding equipment structure is simple, reduces costs, and can make molded part even tissue, reduces
Tissue defects and internal stress improve the mechanical property of molded part, significantly improve the quality of molded part, pulping system and formation system
Cooperation keep forming process eased.
Bar remelting forming method proposed by the present invention, by control heating device heating condition so that bar part
Semi solid slurry is formed, and the extrusion condition of push rod is squeezed out to squeeze out semi solid slurry and be molded into formation system by control
On, it control effectively convenient for the flow behavior to semi solid slurry, semi solid slurry shrinkage in deposition and process of setting
Small, formed precision is high, the molded part even tissue of formation, reduces tissue defects and internal stress, improves the mechanical property of molded part,
Significantly improve the quality of molded part.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of bar remelting direct write molding equipment provided by the invention；
Fig. 2 is the structural schematic diagram of the storage device of feeding system provided by the invention；
Fig. 3 is the structural representation of the pulping system and formation system of bar remelting direct write molding equipment provided by the invention
Figure；
Fig. 4 is the structural schematic diagram of the formation system of bar remelting direct write molding equipment provided by the invention.
In figure:
1, feeding system；11, raw material box；12, conveying device；13, storage device；131, interior bucket；132, outer barrel；133, bottom
Plate；1331, discharge port；
2, pulping system；21, slurrying barrel；211, end cap；22, push rod is squeezed out；221, sealing ring；223, driving portion；23,
Printing nozzle；24, heating device；
3, formation system；31, driving device；32, shaped platform；
4, depassing unit；
5, atmosphere protection device；51, closed case；52, feeder；53, purification system；511, First Transition storehouse；
512, the second transitional storehouse；
6, auxiliary system is formed；61, level controlling system is sought；611, stepper motor；612, double-lever mechanism；6121, gear；
6122, connecting rod；62, outfield emission system；
100, bar.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
It will the technical scheme of the embodiment of the invention will be described in further detail in conjunction with attached drawing, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
In the description of the present invention unless specifically defined or limited otherwise, term " connected ", " connection ", " fixation " are answered
It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or is integral；It can be mechanical connection,
It can be electrical connection；It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
Logical or two elements interaction relationship.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
The present invention provides a kind of bar remelting direct write molding equipment, and Fig. 1 is bar remelting direct write molding provided by the invention
The structural schematic diagram of equipment, as shown in Figure 1, bar remelting direct write molding equipment includes feeding system 1, pulping system 2 and molding
System 3, feeding system 1 are configured as storage bar 100 made of hybrid solid particle and provide bar to pulping system 2
100 (referring to fig. 4)；Pulping system 2 includes that slurrying barrel 21 is moved with can extend into the interior and opposite slurrying barrel 21 of slurrying barrel 21
Dynamic and rotation extrusion push rod 22.The bottom of slurrying barrel 21 is provided with printing nozzle 23, and heating is provided on printing nozzle 23
Device 24 squeezes out push rod 22 along the axis side of slurrying barrel 21 for the local heating of bar 100 to be formed to semi solid slurry
Bar 100 is compressed to movement to squeeze out semi solid slurry.Formation system 3 can be relatively moved with pulping system 2, will be partly solid
State sizing material forming is on formation system 3.
Preferably, bar 100 can pass through the bar remelting direct write by suppressing after the mixing of at least two solid particles
Molding equipment heats the part of bar 100, does not need directly to operate solid particle, forming process is more clear
It is clean.Solid particle can be the solid particle of metallic particles or other materials, and in present embodiment, solid particle is preferably metal
Particle, bar 100 are suppressed by the mixing of at least two metallic particles.Bar 100 is during heating, fast using different melting points
The bar 100 of hybrid solid particle is melted the solid-liquid two-phase metal bath for forming suspension high-melting-point solid metallic particle by speed, i.e.,
Semi solid slurry, with the special organizational composition of semi solid slurry and fluid properties, semi solid slurry has a large amount of forming core core,
Molded part even tissue reduces tissue defects and internal stress, improves the mechanical property of molded part, significantly improve the matter of molded part
Amount, while semi solid slurry shrinkage in deposition and process of setting is small, formed precision is high.
Bar remelting direct write molding equipment further includes molding auxiliary system 6, and molding auxiliary system 6 is arranged in pulping system 2
On, it is used for semi-solid state assistant sizing material forming.The setting of molding auxiliary system 6 makes molded part obtain more fine and close Coating combination,
Complete semi solid slurry deposition modeling layer by layer.Molding auxiliary system 6 includes seeking level controlling system 61 and outfield emission system 62,
The position for the forming path adjust automatically outfield emission system 62 that level controlling system 61 is configured as according to semi solid slurry is sought, outside
Flied emission system 62 is configured to carry out the semi solid slurry after extrusion before curing high frequency to forge.Specifically, control is sought
System 61 includes stepper motor 611 and double-lever mechanism 612, and double-lever mechanism 612 includes gear 6121 and connecting rod 6122, connecting rod 6122
End is connected with outfield emission system 62, drives gear 6121 to turn an angle by stepper motor 611, gear 6121 drives
Outfield emission system 62 is placed in the tail end of printing path by connecting rod 6122, after material extrusion is deposited on shaped platform 32, outside
Flied emission system 62 carries out high frequency to this position and forges, to form fine and close molded part.Preferably, outfield emission system 62 is wrapped
Include high frequency turbine vibrator and thermally conductive pressing plate.
Specifically, feeding system 1 includes raw material box 11, conveying device 12 and storage device 13, and raw material box 11 is for keeping in
The lower section of raw material box 11 is arranged in bar 100, conveying device 12, for the bar 100 in raw material box 11 to be transported to storing dress
It sets in 13, storage device 13 is configured as being adjusted to be arranged along the vertical direction and export by bar 100.It can by raw material box 11
Bar 100 is kept in, the bar 100 in raw material box 11 is transported in storage device 13 by conveying device 12, is passed through
Bar 100 is arranged and is exported along the vertical direction by storage device 13, is entered in pulping system 2 convenient for bar 100.
Further, the bottom of raw material box 11 is provided with the cover board that can be opened and closed, and controls opening for cover board by control device
Close the output for realizing the bar 100 in raw material box 11.
The rotation of conveying device 12 is arranged, and in present embodiment, conveying device 12 is V-type cradle, can accommodate bar
100, when bar 100 is fallen in conveying device 12 by the output of raw material box 11, V-type cradle is by horizontally rotating certain angle
Inclination, and then the bar 100 on V-type material frame is transported in storage device 13.Preferably, conveying device 12 can by horizontal direction
60 ° of rotation.Conveying device 12 can also be other structures, as long as can be realized the transmission of bar 100.
Fig. 2 is the structural schematic diagram of the storage device of feeding system provided by the invention, as shown in Fig. 2, storage device 13
Interior bucket 131 and outer barrel 132 including rotating synchronously setting are formed with gap between interior bucket 131 and outer barrel 132, gap is for holding
It receives bar 100, and shaping is carried out to the direction of bar 100.Bottom plate 133 between interior bucket 131 and outer barrel 132 is provided with discharge port
1331, bar 100 is exported by discharge port 1331.Enable 100 edge of bar by the gap between interior bucket 131 and outer barrel 132
Vertical direction arrangement, by the synchronous rotation of interior bucket 131 and outer barrel 132, when the discharge port 1331 on bar 100 and bottom plate 133
After alignment, bar 100 is exported by discharge port 1331, is entered in slurrying barrel 21.Since bar 100 arranges along the vertical direction,
So that entering slurrying barrel 21 along the vertical direction when bar 100 is exported by discharge port 1331, it is more convenient to convey.
Fig. 3 is the structural representation of the pulping system and formation system of bar remelting direct write molding equipment provided by the invention
Figure, Fig. 4 is the structural schematic diagram of the formation system of bar remelting direct write molding equipment provided by the invention, such as Fig. 3 and Fig. 4 institute
Show, the bottom of slurrying barrel 21 is provided with printing nozzle 23, and heating device 24 is provided on printing nozzle 23, it is preferable that heating
Device 24 is high-frequency electromagnetic induction heating, and cost is relatively low, and heating coil is integrated in the head of printing nozzle 23.Heating coil is to become
Diameter coil is designed according to the performance difference of printed material, and control is uniform by the magnetic induction line of material, to reduce collection skin
The influence of effect.Preferably, printing nozzle 23 is ceramic material, and the diameter for the aperture that discharges is 0.5mm-2mm, according to workpiece essence
Degree demand is replaced.The setting of printing nozzle 23 can carry out shaping to the output of semi solid slurry.Preferably, by making
Printing nozzle 23 of different shapes is installed in the bottom of slurry cylinder 21, to squeeze out semi solid slurry of different shapes.
The top cover of slurrying barrel 21 is equipped with end cap 211 and removes end cap 211 when pan feeding, is pushed up by slurrying barrel 21
Bar 100 is put into slurrying barrel 21 by the feeding inlet in portion, and after pan feeding, end cap 211 is sealed at feeding inlet.End
The setting of lid 211 can be sealed slurrying barrel 21, be also convenient for the addition of bar 100.
Bar remelting direct write molding equipment further includes depassing unit 4, and depassing unit 4 is connected with slurrying barrel 21, is used for
Remove the gas in slurrying barrel 21.The setting of depassing unit 4 makes to form subnormal ambient in slurrying barrel 21, prevents semi solid slurry
Material reacts with environment.Preferably, depassing unit 4 is connected by pipeline with the end cap 211 of slurrying barrel 21, and with slurrying material
The inside of cylinder 21 is connected, and in present embodiment, depassing unit 4 is vacuum pump, by being evacuated into slurrying barrel 21, so that system
Subnormal ambient is formed inside slurry cylinder 21.
The top for squeezing out push rod 22 is provided with driving portion 223, squeezes out push rod 22 along the axial direction of slurrying barrel 21 for driving
Direction is mobile.Further, the bottom end for squeezing out push rod 22 is provided with the sealing ring 221 with gas vent, and sealing ring 221 is by slurrying
Barrel 21 is separated into two cavitys.Sealing ring 221 and the inside of slurrying barrel 21 offset, and can will be squeezed by depassing unit 4
Subnormal ambient is pumped into the cavity of two parts up and down of the sealing ring 221 of push rod 22 out.
The bottom end for squeezing out push rod 22 is provided with temperature-detecting device, for detecting the temperature of bar 100.Temperature-detecting device
The bottom for squeezing out push rod 22 is set, and bar 100 has the property of heat transfer, and the temperature of bar 100 is detected by temperature-detecting device
Degree, and then obtain the temperature of the semi solid slurry of preparation.Specifically, temperature-detecting device includes temperature controller and temperature sensing
Device.Temperature sensor probe be it is flat, be integrated in squeeze out push rod 22 bottom end.By monitoring the temperature of bar 100, by temperature
Data are uploaded to central controller, are adjusted by the size of current of the heating device 24 to magnetic induction, to reach adjusting
The purpose of temperature.
It squeezes out and pressure-detecting device is set on push rod 22, for detecting the pressure for squeezing out push rod 22.Preferably, pressure detecting
Device is pressure sensor, and the pressure for squeezing out push rod 22 is detected by pressure sensor, and then is reflected half in slurrying barrel 21
The viscosity state of solid size makes the viscosity shape of semi solid slurry so as to the heating condition of feedback regulation heating device 24
State is controllable, the final extrusion for realizing semi solid slurry.
As shown in figure 3, formation system 3 includes driving device 31 and shaped platform 32, driving device 31 and 2 phase of pulping system
Even, and pulping system 2 is driven to move along setting path, semi solid slurry is molded on shaped platform 32, the equipment safety
Property it is high, realize the complexity and Forming Quality of molded part.
Preferably, it is provided with heating element on shaped platform 32, shaped platform 32 can be heated, so as to be molded over
The more fine and close tissue of the acquisition of molded part on shaped platform 32, greatly improves the interfacial bonding strength of molded part, at
The performance of type part is obviously improved.The structure and heating method of specific heating element belong to the prior art, and details are not described herein.
Preferably, driving device 31 is three shaft mechanical arms, and the free end of three shaft mechanical arms is connected with pulping system 2, and band
Pulping system 2 is moved along three-dimensional direction moving.It is connected by the free end of three shaft mechanical arms with pulping system 2, to drive slurrying system
System 2 improves molding freedom degree, substantially increases the complexity and Forming Quality of plastic part along three-dimensional direction moving.
Preferably, bar remelting direct write molding equipment further includes atmosphere protection device 5, and atmosphere protection device 5 includes closed
Cabinet 51, feeder 52 and purification device, pulping system 2 and formation system 3 are arranged in closed case 51.Closed case
It is provided with First Transition storehouse 511 and the second transitional storehouse 512 outside 51, the top of closed case 51 is arranged in First Transition storehouse 511, uses
In addition bar 100, the lower part of closed case 51 is arranged in the second transitional storehouse 512, prints on shaped platform 32 for taking out
Molding molded part.The volume of second transitional storehouse 512 is less than the volume in First Transition storehouse 511, when taking out molded part every time, due to
Second transitional storehouse, 512 small volume can maintain the atmosphere in closed case 51, extend the service life of purification system 53.
Feeder 52 is connected with closed case 51, and provides protective gas for closed case 51, specifically, gas supply dress
It sets 52 and provides inert gas for closed case 51.Purification system 53 is connected with closed case 51, and being used for will be in closed case 51
Gas carry out circulating purification.The atmosphere protection device 5 can be sealed forming process, by feeder 52 to sealing
Inert gas is provided in cabinet, forming process is protected, the setting of purification system 53 is realized to the gas in closed case 51
Body carries out circulating purification, improves the cleanliness in closed case 51, and then guarantee the Forming Quality of molded part.
The present invention also provides a kind of bar remelting forming methods, using above-mentioned bar remelting direct write molding equipment system
It is standby, comprising the following steps:
S1, the bar 100 made of hybrid solid particle is added in feeding system 1.
The bar 100 made of hybrid solid particle is added in the raw material box 11 of feeding system 1, raw material box 11 is passed through
Control device control bar 100 output, conveying device 12 rotates, bar 100 is transported in storage device 13 in case make
With.Purification system 53 is opened, circulating purification processing is carried out to the gas in closed case 51, while opening feeder 52, it is right
Entire work system and closed case 51 are passed through inert gas, assist gas circular treatment by purification system 53.
S2, the bar 100 in feeding system 1 is transported in pulping system 2, by the fire-bar for controlling heating device 24
Part is so that bar 100 is partially formed semi solid slurry, and controls the extrusion condition for squeezing out push rod 22 to squeeze semi solid slurry
Out.
When pulping system 2 is moved to the unloading position of feeding system 1 by driving device 31, the end cap 211 of sealing is opened, is stored up
The interior bucket 131 and outer barrel 132 for expecting device 13 rotate synchronously, after the discharge port 1331 on bar 100 and bottom plate 133 is aligned, stick
Material 100 is exported by discharge port 1331, is entered in the slurrying barrel 21 of pulping system 2, is covered the sealing of end cap 211, is heated simultaneously
Device 24, depassing unit 4 are started to work, and when the temperature that temperature sensor detects reaches preset temperature, are squeezed out push rod 22 and are opened
Beginning work is moved along the axis of slurrying barrel 21 by squeezing out push rod 22, and is rotated about axis, and acceptable rheological properties energy is up to
Semi solid slurry squeezes out.Heating temperature and heating time are controlled by heating device 24, in order to effectively control semi solid slurry
Mobility.The pressure for squeezing out push rod 22 is detected by pressure-detecting device, and then reflects semi solid slurry in slurrying barrel 21
The viscosity state of material keeps the viscosity state of semi solid slurry controllable so as to the heating condition of feedback regulation heating device 24,
And then the viscosity state of semi solid slurry is made to meet extrusion condition.
S3, by the relative motion of formation system 3 and pulping system 2, semi solid slurry is molded into formation system 3
On.
Push rod 22 is squeezed out after bar 100 is heated to suitable temperature and driving device 31 is started to work, and is being preheating to one
Determine to start deposition modeling on the shaped platform 32 of temperature, auxiliary system 6 is formed in forming process and is started to work, it is solid squeezing out half
Outfield emission system 62 starts to forge semi solid slurry while state slurry, until printing terminates.Form auxiliary system 6
It enables to molded part to obtain more fine and close tissue, the interfacial bonding strength of molded part is greatly improved, to the performance of molded part
It is obviously improved.
During squeezing out semi solid slurry, by driving device 31 drive pulping system 2 along setting line-of-road movement, with
Semi solid slurry is molded on shaped platform 32.
Formation system 3 returns to zero point after printing, and heating device 24 stops working, while squeezing out push rod 22 for remnants'
Fusant squeezes out the garbage area in shaped platform 32.After system reset works, the second mistake of closed case 51 can be passed through
It crosses storehouse 512 and takes out molded part.
The bar remelting forming method, by control heating device 24 heating condition so that bar 100 local heating
Semi solid slurry is formed, and then the extrusion condition for squeezing out push rod 22 by control passes through driving to squeeze out semi solid slurry
Device 31 drives pulping system 2 to move along setting path, and semi solid slurry is molded on shaped platform 32, convenient for half-and-half solid
The mobility of state slurry control effectively, and semi solid slurry shrinkage in deposition and process of setting is small, and formed precision is high, shape
At molded part even tissue, reduce tissue defects and internal stress, improve the mechanical property of molded part, significantly improve molded part
Quality.By improving the relative motion of pulping system 2 and three shaft mechanical arms molding freedom degree, substantially increasing molded part
Complexity and Forming Quality.
In the description of this article, it is to be understood that term " on ", "lower", " right side ", etc. orientation or positional relationships be based on
Orientation or positional relationship shown in the drawings is merely for convenience of description and simplification and operates, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.In addition, term " first ", " second ", are only used to distinguish between description, have no special meaning.
In the description of this specification, the description of reference term " embodiment ", " example " etc. means to combine the embodiment
Or example particular features, structures, materials, or characteristics described are included at least one embodiment or example of the invention.?
In this specification, schematic expression of the above terms be may not refer to the same embodiment or example.
In addition, the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of bar remelting direct write molding equipment, which is characterized in that including feeding system (1), pulping system (2) and molding system
It unites (3), the feeding system (1) is configured as the storage bar made of hybrid solid particle (100) and to the slurrying system
System (2) provides the bar (100)；
The pulping system (2) includes slurrying barrel (21) and can extend into the slurrying barrel (21) and the relatively described slurrying
The extrusion push rod (22) of barrel (21) movement and rotation, slurrying barrel (21) bottom is provided with heating device (24), is used for
The part of the bar (100) in the slurrying barrel (21) is heated to form semi solid slurry, the extrusion pushes away
Bar (22) compresses the bar (100) along the axis direction movement of the slurrying barrel (21) to squeeze the semi solid slurry
Out；
The formation system (3) can relatively move with the pulping system (2), the semi solid slurry is molded over described
On formation system (3).
2. bar remelting direct write molding equipment according to claim 1, which is characterized in that the feeding system (1) includes
Raw material box (11), conveying device (12) and storage device (13), the raw material box (11) is for keeping in the bar (100), institute
Conveying device (12) setting is stated in the lower section of the raw material box (11), is used for the bar in the raw material box (11)
(100) it is transported in the storage device (13), the storage device (13) is configured as the bar (100) being adjusted to edge
Vertical direction is arranged and exports.
3. bar remelting direct write molding equipment according to claim 2, which is characterized in that the storage device (13) includes
The interior bucket (131) and outer barrel (132) for rotating synchronously setting, are formed with gap between the interior bucket (131) and outer barrel (132), institute
Gap is stated for accommodating the bar (100), the bottom plate (133) between the interior bucket (131) and outer barrel (132) is provided with discharging
Mouth (1331), the bar (100) are exported by the discharge port (1331).
4. bar remelting direct write molding equipment according to claim 1, which is characterized in that slurrying barrel (21) bottom
It is provided with printing nozzle (23), is provided with the heating device (24) on the printing nozzle (23).
5. bar remelting direct write molding equipment according to claim 1, which is characterized in that the bottom for squeezing out push rod (22)
End is provided with temperature-detecting device, for detecting the temperature of the bar (100).
6. bar remelting direct write molding equipment according to claim 1, which is characterized in that the formation system (3) includes
Driving device (31) and shaped platform (32), the driving device (31) is connected with the pulping system (2), and drives the system
Slurry system (2) is moved along setting path.
7. bar remelting direct write molding equipment according to claim 6, which is characterized in that the driving device (31) is three
The free end of shaft mechanical arm, the three shaft mechanicals arm is connected with the pulping system (2), and drives the pulping system (2) edge
Three-dimensional direction moving.
8. bar remelting direct write molding equipment according to claim 1, which is characterized in that further include molding auxiliary system
(6), the molding auxiliary system (6) includes seeking level controlling system (61) and outfield emission system (62), described to seek position control system
System (61) is configured as adjusting the position of the outfield emission system (62) according to the forming path of the semi solid slurry, described
Outfield emission system (62) is configured to forge the semi solid slurry.
9. bar remelting direct write molding equipment according to claim 1, which is characterized in that the bar (100) is by least
It is suppressed after two kinds of solid particle mixing.
10. a kind of bar remelting forming method, which is characterized in that straight using the bar remelting any in claim 1-9
It is prepared by write forming equipment, comprising steps of
S1, the bar made of hybrid solid particle (100) is added in feeding system (1)；
S2, the bar (100) in the feeding system (1) is transported in the pulping system (2), by described in control
The heating condition of heating device (24) is so that the bar (100) is partially formed semi solid slurry, and squeezes by the way that control is described
The extrusion condition of push rod (22) is out to squeeze out the semi solid slurry；
S3, by the relative motion of the formation system (3) and the pulping system (2), the semi solid slurry is formed
To on the formation system (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910453782.7A CN110125415B (en) | 2019-05-28 | 2019-05-28 | Rod remelting direct-writing forming equipment and rod remelting forming method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910453782.7A CN110125415B (en) | 2019-05-28 | 2019-05-28 | Rod remelting direct-writing forming equipment and rod remelting forming method |
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| CN110125415A true CN110125415A (en) | 2019-08-16 |
| CN110125415B CN110125415B (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910453782.7A Active CN110125415B (en) | 2019-05-28 | 2019-05-28 | Rod remelting direct-writing forming equipment and rod remelting forming method |
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Cited By (1)
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| CN114309524A (en) * | 2021-11-26 | 2022-04-12 | 深圳南科强正轻合金技术有限公司 | On-line monitoring system and method for quality of semi-solid slurry |
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| CN110125415B (en) | 2022-02-18 |
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