CN109822091A - The molding rapid molding device of close said magnetic powder material adsorption plane and method - Google Patents
The molding rapid molding device of close said magnetic powder material adsorption plane and method Download PDFInfo
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- CN109822091A CN109822091A CN201910155408.9A CN201910155408A CN109822091A CN 109822091 A CN109822091 A CN 109822091A CN 201910155408 A CN201910155408 A CN 201910155408A CN 109822091 A CN109822091 A CN 109822091A
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Abstract
The present invention relates to a kind of molding rapid molding device of parent's said magnetic powder material adsorption plane and methods, device includes the powder supply cylinder that close said magnetic powder material is loaded in one, being equipped with above powder supply cylinder can be along putting down to and vertically moves bracket to what is moved, the partition and an adhesives squeegee driven by electromagnet group is had in mobile bracket, load coil group can be disposed with along the moulding cylinder moved flat inside the casing wall of moulding cylinder by being equipped with by powder supply cylinder.Innovative point of the invention is the electric signal that control electromagnet group is converted to by that will be layered cross section information, partition is set to carry out the absorption of close said magnetic powder material under magnetic fields, electromagnet group is controlled again and partition enters one layer of entire molding of completion in the moulding cylinder for being pre-coated with binding material, by the way that one layer of close said magnetic powder material one time of absorption is fixed on bonding overlay, it recycles load coil group to carry out leveled heating to entire prototype, ultimately generates the device of 3D solid.
Description
Technical field
The invention belongs to quick forming fabri-cation equipment technical fields, and it is molding to be related to a kind of close said magnetic powder material adsorption plane
Rapid molding device and method, the close said magnetic powder material are iron, cobalt, nickel etc. or the powder containing materials such as iron, cobalt, nickel
Last substance.
Background technique
Rapid shaping technique is born in the late 1980s, is a kind of high coming of new skill based on material stacking method
Art, it is considered to be the great achievement that manufacturing field occurs in the past 30 years.The basic process of rapid shaping technique is to calculate
Under machine control, according to the layering cross section information of three-dimensional part model, each layer is successively formed in the X-Y plane of rapidform machine and is cut
Face, it is final to realize the three-dimensionally shaped of part then by successively cumulative in z-direction.The rapid shaping skill of comparative maturity at present
Art has Stereolithography technology (SLA), Selective Laser Sintering (SLS), fused deposition modeling technology (FDM) and electron beam deposition
Technology (EBM) etc.；And by the widely used printed material of 3D printing process system in rapid shaping field, it is main from form
Will include four kinds: liquid photosensitive resin material, thin material (paper, plastic foil), low melting point silk material and dusty material, these materials from
It includes the high molecular materials such as plastics, resin, wax, metal and conjunction that the various types of materials in current production and living is almost covered on ingredient
Golden material, ceramic material etc..Compared to traditional manufacturing technology, rapid shaping technique, which is gathered around, has the advantage that 1, freedom: can be with
The part of any complicated shape is processed, manufacturing process is unrelated with the complexity of part, is not limited by tool, may be implemented certainly
By manufacturing, complicated part gets over the advantage that can show rapid shaping technique；2, rapidity: prototype is accomplished to from CAD design
The completing the process of part only needs several to more than ten hour time under normal circumstances, and the process-cycle is short, can save a large amount of
Time；3, lower cost: manufacturing cost is mostly unrelated with the complexity of product, without manufacturing mold and the manufacture of complex and expensive
Process no waste mine；4, theoretically all material can be used to carry out the production of prototype, either metal material or nonmetallic
Material.
But currently known rapid molding device and technique are also faced with a series of problem, mainly have: 1, FDM forms work
Solid phase transition process of the skill due to experienced solid-liquid-, temperature are difficult to control, and forming process is since problem of materials is often with spinosity
Swash the release of property smell；2, SLS moulding process uses laser as heat source, therefore cost is just costly, simultaneously because burning
Knot effect, strictly prototype is to be bonded, therefore the mechanical property of molded part is poor, can not directly be used；3,
Costly, therefore process costs are relatively high for the photosensitive resin material price that SLA technique uses.
The Chinese patent text of Publication No. CN103817941A once disclosed a kind of molding rapid shaping in magnetorheological face
Device and method, this method, which needs to be placed in prototype under magnetic field or cryogenic conditions, to be saved, and operation is more troublesome, while former
Magnetic fluid material will be aggregating by type part by magnetic force, therefore part strength is poor.
The Chinese patent text of another Publication No. CN103213281 once disclosed one kind, and " 3D based on magnetorheological materials is beaten
Print rapid molding device and method ", this technology needs spray head to spray magnetorheological materials in magnetic field, due to magnetorheological materials particle
Diameter is too small and required precision, and sprinkler design is complex, and magnetorheological materials are not sprayed just from nozzle since magnetic field influences solidification
And then plug nozzle, and form using point-line-face molding, speed is lower.
Again the Chinese patent text of Publication No. CN106142578A also once disclosed it is a kind of " magnetic control sinter molding device and
Method ", this device are provided with the electromagnetic heater heated to magnetic spheres, while being equipped with and moving for controlling magnetic spheres
Dynamic electromagnet is moved the bead with temperature by electromagnet and achievees the purpose that be sintered dusty material.But it is ignored
Temperature can will receive influence to magnetic fields, the kinematic accuracy of such bead, while bead is not with dusty material
Complete point contact is strictly face contact, this also influences whether the formed precision of prototype.
Summary of the invention
It is an object of the invention to solve to problem of the existing technology, a kind of close said magnetic powder material suction is provided
The attached molding rapid molding device in face, while providing a kind of using the device and magnetic based on traditional increasing material manufacturing principle progress parent
The molding quick molding method of dusty material adsorption plane, can be significant using molding machine of the present invention and forming method
Shorten the molding time and avoid the problems such as spray head of the existing technology blocks, Conservation environment is harsh, improves prototype processing essence
Degree and processing efficiency.
For achieving the above object and described in the technical solutions adopted are as follows.
A kind of molding rapid molding device of parent's said magnetic powder material adsorption plane is loaded with parent it is characterized in that having in one
The powder supply cylinder of said magnetic powder material, being equipped with one in the top of powder supply cylinder can be under the first movement and computer control system driving
Along putting down to and vertically moving bracket to what is moved, it is disposed with what a pair can be controlled by computer in the side of mobile pedestal lower end
Electromagnet group, under electromagnet group tipping have one piece for adsorb close said magnetic powder material by soft magnetic materials or superconductor system
At partition, in work under the first movement and computer control system effect mobile supporting band move electromagnet group move back and forth in
Between powder supply cylinder and moulding cylinder, the absorption and release to powder supply cylinder in-laws' said magnetic powder material are realized；In mobile pedestal lower end
The other side is equipped with an adhesives squeegee, and one is provided with by powder supply cylinder can be in the second movement and computer control system
The moulding cylinder that moves flat of driving lower edge is disposed in the casing wall inner wall of moulding cylinder and connect with temperature control system and use layering
The load coil group of heating method.
In the molding rapid molding device of above-mentioned parent's said magnetic powder material adsorption plane, the lower end of moulding cylinder is even equipped with one can
In the transfer bracket that the second movement and computer control system driving lower edge move flat.
In the molding rapid molding device of above-mentioned parent's said magnetic powder material adsorption plane, each electromagnet list in electromagnet group
The coil current size of body and the number of turns of coil can be adjusted by computer.
In the molding rapid molding device of above-mentioned parent's said magnetic powder material adsorption plane, adhesives squeegee has a company
It connects in the mobile pedestal lower end other side and by the solenoid valve of the first movement and computer control system control, the arrival end of solenoid valve
It is connected to, is provided in the outlet end of solenoid valve viscous for brushing with the outlet end that an adhesives stores cylinder by a segment pipe
Connect the brush of material.
In above-mentioned parent's said magnetic powder material adsorption plane molding rapid molding device, alternation that load coil group is led to
Power frequency can be adjusted with amplitude by computer.
In the molding rapid molding device of above-mentioned parent's said magnetic powder material adsorption plane, it is provided in powder supply cylinder for guaranteeing
The powdering roller of cylinder in-laws' said magnetic powder material surfacing.
In the molding rapid molding device of above-mentioned parent's said magnetic powder material adsorption plane, the material for making partition is soft magnetism
Material or superconductor, soft magnetic materials therein be pure iron, mild steel, iron Si system alloy, iron aluminum series alloy or magnetic stainless steel,
Superconductor is superconducting alloy or superconducting compound.
In the molding rapid molding device of above-mentioned parent's said magnetic powder material adsorption plane, leveled heating mode is electromagnetic induction line
Circle grouping heating.
Using above-mentioned molding machine the close molding quick molding method of said magnetic powder material adsorption plane the following steps are included:
[1], drawing three-dimensional material object parts model in a computer；
[2], layered shaping is carried out to 3D solid using delamination software, obtains cross section information；
[3], electric signal is converted by the cross section information of acquisition using computer control system；
[4], electromagnet group is controlled by the electric signal that computer control system generates, using electromagnetic induction principle, every
It is obtained on plate and a consistent Distribution of Magnetic Field of layering cross sectional shape；
[5], it is controlled in partition movement to the powder supply cylinder paved by the first movement and computer control system, adsorbs one layer
Close said magnetic powder material after absorption, is paved the close said magnetic powder material in powder supply cylinder by roller；
[6], move to moulding cylinder below adhesives squeegee properly by the second movement and computer control system
At position；
[7], it is controlled by the first movement and computer control system and is advanced into moulding cylinder under adhesives squeegee, it will
Solenoid valve control pipeline is opened, and is controlled adhesives squeegee by the first movement and computer control system and is transported in moulding cylinder
The dynamic coating for carrying out one layer of binding material, control adhesives squeegee leaves moulding cylinder after coating is completed；
[8], partition is controlled into the moulding cylinder for completing binding material coating by the first movement and computer control system
It is interior, adsorbed fixed be bonded on coating of close said magnetic powder material of partition is subjected to first time precuring, makes first later
Movement and computer control system cut off electric signal；
[9], adhesives squeegee is controlled in the parent's magnetism just formed by the first movement and computer control system
One layer of binding material is brushed on layer of powder material again, complete a formable layer of part and is solidified for the first time；
[10], computer recalls the cross section information of next layer of processing entity, repeats step [4]~step [9], completes surplus
The processing of other remaining layers, until entire forming parts, finally by temperature control system control load coil group to molding
Part prototype carries out leveled heating, so that it is well-bonded between layers, realize the secondary curing of part prototype.
Innovative point of the invention is the electric signal that control electromagnet group is converted to by that will be layered cross section information, and control corresponds to
Electromagnet group, to be generated on partition and be layered the identical Distribution of Magnetic Field of cross sectional shape；The magnetic field on partition is applied later
Be added on close said magnetic powder material, the absorption of close said magnetic powder material carried out under magnetic fields, finally control electromagnet group and
Partition, which enters, is pre-coated with one layer of entire molding of completion in the moulding cylinder of binding material, then magnetic by the parent that will be adsorbed
One layer of dusty material one time is directly anchored on bonding overlay；After molding is all completed in all faces, temperature control system control
Load coil group processed carries out leveled heating to entire prototype, realizes secondary curing, ultimately generates the device of 3D solid.
Compared with existing rapid shaping technique, rapid molding device of the present invention and method can once realize flood
The molding in face substantially increases shaping efficiency, while the not use of high power laser in application process, not using knot
The more demanding spray head of structure, also not complicated injection equipment, to also reduce cost.
Detailed description of the invention
Fig. 1 is the main operational principle knot of the molding rapid molding device of close said magnetic powder material adsorption plane of the present invention
Structure schematic diagram.
Fig. 2 is the working principle diagram that the rapid molding device carries out the production of adhesives overlay.
Fig. 3 is the working principle diagram that the rapid molding device carries out that close said magnetic powder material absorption combines.
The title of each number designation is respectively in attached drawing: the movement of 1- first and computer control system, the mobile bracket of 2-,
3- electromagnet group, 4- partition, 5- parent's said magnetic powder material layer, 6- parent's said magnetic powder material, 7- powdering roller, 8- powder supply
Cylinder, 9- load coil group, 10- moulding cylinder, 11- adhesives overlay, 12- shift bracket, and 13- second is moved
And computer control system, 14- adhesives store cylinder, 15- solenoid valve, 16- pipeline, 17- brush, the control of 18- temperature
System.
Specific embodiment
The contents of the present invention are further described below with reference to drawings and examples, but actual fabrication of the invention
Structure and specific working mode are not limited in following embodiments.
Referring to attached drawing, parent's molding rapid molding device of said magnetic powder material adsorption plane of the present invention includes powder supply cylinder
8, the movement of moulding cylinder 10, first and computer control system 1, mobile bracket 2, electromagnet group 3, adhesives squeegee, partition
4, the movement of powdering roller 7, second and computer control system 13, adhesives store cylinder 14, solenoid valve 15, temperature control system
18 equal components.Be loaded with close said magnetic powder material 6 in powder supply cylinder 8, the close said magnetic powder material 6 be iron, cobalt, nickel etc. or
Powdered rubber containing materials such as iron, cobalt, nickel, and require to keep drying, it is provided with moulding cylinder 10 by powder supply cylinder 8, forms
Cylinder 10 is placed on transfer bracket 12 and lower edge can be driven to move flat in the second movement and computer control system 13, in moulding cylinder
The load coil group 9 using leveled heating mode, temperature control system 18 and induction heating are disposed with inside 10 casing wall
Coil group 9 connects, and the alternating current size being passed through in load coil group 9 is adjustable.In powder supply cylinder 8 and moulding cylinder 10
Top be equipped with can first movement and computer control system 1 drive lower edge put down to and vertically to mobile mobile bracket 2, moving
The arranged beneath of dynamic bracket 2 has electromagnet group 3 and adhesives squeegee.The coil current size and coil turn of electromagnet 3
Adjustable, tipping has that (pure iron, mild steel, iron Si system alloy, iron aluminum series alloy, magnetic conduction are stainless by soft magnetic materials under electromagnet group 3
Steel etc.) or superconductor (superconducting alloy or superconducting compound) made of partition 4, in the first movement and computer control when work
The lower mobile bracket 2 of the effect of system 1 drives electromagnet group 3 and partition 4 to move back and forth between powder supply cylinder 8 and moulding cylinder 10, to confession
Close said magnetic powder material 6 in powder cylinder 8 is adsorbed and is discharged.The other side of mobile bracket 2 is arranged in adhesives squeegee,
It includes the solenoid valve 15 controlled by the first movement and computer control system 1, and the arrival end of solenoid valve 15 passes through one section
Pipeline 16 is connected to the outlet end of an adhesives storage cylinder 14, is provided in the outlet end of solenoid valve 15 for brushing bonding
The brush 17 of material.
It is of the present invention parent the molding quick molding method of said magnetic powder material adsorption plane include the following steps are included:
[1], drawing three-dimensional material object parts model in a computer；
[2], layered shaping is carried out to 3D solid using delamination software, obtains putting on each layering section of 3D solid
Position distribution (i.e. coordinate) information；
[3], corresponding electric signal is converted by the cross section information of acquisition using computer control system, that is, passes through computer control
System processed makes each electromagnet monomer be corresponding with a control signal, and control signal has opposite position coordinates each other,
It will be layered the control signal that the zero point coordinate on section assigns position suitable first, have clearly due to controlling signal in advance to each other
Positional relationship, then known to remaining control signal position coordinates, the position coordinates put and each control signal on section will be layered
Position coordinates compare, to being exactly electric signal with the consistent control signal of position coordinates put on layering section, according to this just
Layering cross section information can be converted to the electric signal of control electromagnet by method；
[4], electric signal is generated by computer control system and controls electromagnet group 3, since electromagnetic induction principle can generate
Magnetic field signal corresponding with electric signal one by one can finally obtain and the layering consistent magnetic of cross sectional shape on partition 4
Field distribution；
[5], it controls in the first movement and under the action of computer control system 1 mobile bracket 2 and moves to partition 4 and pave
Powder supply cylinder (8) in, adsorb one layer of close said magnetic powder material, can obtain and be layered the consistent close Magnaglo material of cross sectional shape
The bed of material 5 after absorption, is paved the close said magnetic powder material in powder supply cylinder 4 by roller；
[6], moulding cylinder 10 is made to move to the brush of adhesives squeegee by the second movement and computer control system 13
At sub 17 lower section suitable positions；
[7], adhesives squeegee is controlled by the first movement and computer control system 1 to be moved into straight down
In type cylinder 10, when reaching suitable position, solenoid valve 15 controls pipeline 16 and opens, and the adhesives that adhesives stores in cylinder 14 is suitable
Brush 17 flow down, by first movement and computer control system 1 control adhesives squeegee brush 17 in moulding cylinder
Movement carries out the coating of one layer of binding material in 10, while passing through the second movement and the control transfer bracket of computer control system 13
The movement of 12 right-to-lefts is until coating terminates, and solenoid valve 15 controls 16 tube wall of pipeline after coating, and brush 17 returns to initial bit
It sets, and adhesives squeegee is made to leave moulding cylinder 10, then turned again by the second movement and the control of computer control system 13
Moving bracket 12 drives moulding cylinder 10 to move to 3 lower section suitable position of electromagnet group；
[8], partition 4 is controlled into the molding for completing binding material coating by the first movement and computer control system 1
In cylinder 10, the adsorbed close said magnetic powder material layer 5 of partition 4 is fixed in advance coated on moulding cylinder after suitable position to be achieved
First time precuring is carried out on binding material overlay 11 in 10, later cuts the first movement and computer control system 1
Power-off signal makes 3 magnetic field of electromagnet group disappear；
[9], adhesives squeegee is controlled in the parent's magnetism just formed by the first movement and computer control system 1
One layer of binding material is brushed on layer of powder material again, complete a formable layer of part and is solidified for the first time；
[10], computer recalls the cross section information of next layer of processing entity, repeats step [4]~step [9], completes surplus
The processing of other remaining layers, until entire forming parts, finally pass through temperature control system control load coil group suitable
The alternating current of frequency carries out leveled heating to forming part prototype, so that sufficiently bonding between powder bed and powder bed, realizes zero
The secondary curing of part prototype.
Claims (7)
1. a kind of molding rapid molding device of parent's said magnetic powder material adsorption plane, it is characterised in that: have in one and be loaded with
The powder supply cylinder (8) of close said magnetic powder material (6), being equipped with one in the top of powder supply cylinder (8) can be in the first movement and computer control
System (1) processed driving lower edge put down to and vertically to mobile mobile bracket (2), be disposed in the side of mobile bracket (2) lower end
The electromagnet group (3) that one pair can be controlled by computer, tipping has one piece to be used to adsorb close Magnaglo under electromagnet group (3)
The partition made of soft magnetic materials or superconductor (4) of material (6) is equipped with one in the other side of mobile bracket (2) lower end
Adhesives squeegee, one is provided with by powder supply cylinder (8) can be under the second movement and computer control system (13) driving
Along the moulding cylinder (10) moved flat, it is disposed with inside the casing wall of moulding cylinder (10) and connect and adopt with temperature control system (18)
With the load coil group (9) of leveled heating mode.
2. the molding rapid molding device of parent's said magnetic powder material adsorption plane according to claim 1, it is characterised in that: at
The lower end of type cylinder (10), which is even equipped with one, to be turned what the second movement and computer control system (13) driving lower edge moved flat
It moves bracket (12).
3. the molding rapid molding device of parent's said magnetic powder material adsorption plane according to claim 1, it is characterised in that: institute
The coil current size of each electromagnet monomer and the number of turns of coil can be added by computer in the electromagnet group (3) stated
To adjust.
4. the molding rapid molding device of parent's said magnetic powder material adsorption plane according to claim 1, it is characterised in that: institute
There is the adhesives squeegee stated one to be connected to mobile bracket (2) the lower end other side and be controlled by the first movement and computer
The arrival end of the solenoid valve (15) of system (1) control, solenoid valve (15) is stored by a segment pipe (16) and an adhesives
The outlet end connection of cylinder (14), is provided with the brush (17) for brushing adhesives in the outlet end of solenoid valve (15).
5. the molding rapid molding device of parent's said magnetic powder material adsorption plane according to claim 1, it is characterised in that: institute
The alternating current frequency that the load coil group (9) stated is led to can be adjusted with amplitude by computer.
6. the molding rapid molding device of parent's said magnetic powder material adsorption plane according to claim 1, it is characterised in that:
Powdering roller (7) are provided in powder supply cylinder (8).
7. a kind of close molding quick molding method of said magnetic powder material adsorption plane using molding machine described in claim 1,
Characterized by the following steps:
[1], drawing three-dimensional material object parts model in a computer；
[2], layered shaping is carried out to 3D solid using delamination software, obtains cross section information；
[3], electric signal is converted by the cross section information of acquisition using computer control system；
[4], electromagnet group (3) are controlled by the electric signal that computer control system generates, using electromagnetic induction principle, in partition
(4) it is obtained on and a consistent Distribution of Magnetic Field of layering cross sectional shape；
[5], it is moved in the powder supply cylinder (8) paved, is inhaled by the first movement and computer control system (1) control partition (4)
Attached one layer close said magnetic powder material, after absorption, is paved the close said magnetic powder material in powder supply cylinder (4) by roller；
[6], move to moulding cylinder (10) below adhesives squeegee by the second movement and computer control system (13)
At suitable position；
[7], it is controlled by the first movement and computer control system (1) and is advanced into moulding cylinder (10) under adhesives squeegee
It is interior, solenoid valve control pipeline is opened, by first movement and computer control system (1) control adhesives squeegee at
Movement carries out the coating of one layer of binding material in type cylinder (10), and control adhesives squeegee leaves moulding cylinder after coating is completed
(10)；
[8], enter the molding for completing binding material coating by the first movement and computer control system (1) control partition (4)
In cylinder (10), adsorbed fixed be bonded on coating of close said magnetic powder material of partition (4) is subjected to first time precuring, it
After so that the first movement and computer control system (1) is cut off electric signal；
[9], adhesives squeegee is controlled in the close magnetic powder just formed by the first movement and computer control system (1)
One layer of binding material is brushed on powder material layer again, complete a formable layer of part and is solidified for the first time；
[10], computer recalls the cross section information of next layer of processing entity, repeats step [4]~step [9], complete it is remaining its
The processing of his layer, until entire forming parts, finally by temperature control system control load coil group to forming part
Prototype carries out leveled heating, so that it is well-bonded between layers, realize the secondary curing of part prototype.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910155408.9A CN109822091A (en) | 2019-03-01 | 2019-03-01 | The molding rapid molding device of close said magnetic powder material adsorption plane and method |
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| CN201910155408.9A CN109822091A (en) | 2019-03-01 | 2019-03-01 | The molding rapid molding device of close said magnetic powder material adsorption plane and method |
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| CN112008085A (en) * | 2020-08-04 | 2020-12-01 | 西安铂力特增材技术股份有限公司 | Universal part preheating device and preheating method thereof |
| CN114290670A (en) * | 2021-12-23 | 2022-04-08 | 哈尔滨工业大学 | 3D printing device based on electromagnet array |
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