CN102218807A - Rapid forming working platform - Google Patents
Rapid forming working platform Download PDFInfo
- Publication number
- CN102218807A CN102218807A CN2010101506101A CN201010150610A CN102218807A CN 102218807 A CN102218807 A CN 102218807A CN 2010101506101 A CN2010101506101 A CN 2010101506101A CN 201010150610 A CN201010150610 A CN 201010150610A CN 102218807 A CN102218807 A CN 102218807A
- Authority
- CN
- China
- Prior art keywords
- forming
- bracing
- strutting arrangement
- workbench
- quick shaping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Surface Heating Bodies (AREA)
Abstract
Rapid forming equipment in the prior art needs to be additionally provided with a forming chamber so as to provide an environmental temperature for preventing over-fast temperature reduction speed of forming materials; therefore causing the defects of complex rapid forming equipment and hardly observed forming process as well as various problems generated in real time due to unable timely processing caused by the defects of complex rapid forming equipment and hardly observed forming process. The invention provides a rapid forming working platform, which comprises a support device and a heating device. The upper surface of the support device comprises a support surface used for supporting a forming piece; the heating device is used for heating the support device so as to improve an environmental temperature for squeezed forming materials. The working platform is a self-heated open type working platform and is provided with the heating device for guaranteeing the environmental temperature of the forming materials. When the working platform is adopted, a forming chamber is not needed; therefore, the material forming process is completely visible so that various problems generated in real time can be timely processed.
Description
Technical field
The invention belongs to the RP technique field, particularly a kind of quick shaping workbench.
Background technology
RP technique is as a kind of advanced person's manufacturing technology, broken traditional manufacturing mode, utilize the principle of discrete/accumulation, need not any worker, mould, directly drive by cad model, finish the part of any complicated shape fast, thereby realized the digitlization and the automation of from the product design to the product, making.
Melt extruded (MEM～Melted Extrusion Modeling) technology that is shaped fast is the geological information of being determined according to cad model by computer, the control nozzle, the extrusion head of moulding material by heater is fused into molten state, the thermoplastic materials silk of fusing is extruded by nozzle, extrusion head accurately moves along the profile in each cross section of part, extrude semifluid thermoplastic material deposition and be solidified into accurate physical unit thin layer, be covered on the part of having built, and rapid solidification, form layer of material.Subsequently, the extrusion head slight distance that longitudinally moves upward is descended the construction of layer of material, so successively is piled into an entity component to the top end of by.
When utilizing melt extruded RP technique processing plastic part; usually can produce buckling deformation; volume contraction causes when mainly solidifying owing to moulding material; the temperature that is semifluid thermoplastic of extruding of nozzle drops to room temperature from melt temperature fast; produce the volume contraction that can not compensate, formed buckling deformation.In order to eliminate buckling deformation, the way of prior art is: the working chamber that installs sealing on former additional, extrude and the solidification process of thermoplastic materials silk are finished in inside, working chamber, the temperature of thermoplastic materials silk only drops to the shaping indoor temperature from melt temperature, generally speaking, temperature in the working chamber is controlled in about 50-130 ℃, to avoid the too fast buckling deformation that brings of moulding material cooling rate.Heater in the working chamber makes its interior temperature remain on 50-130 ℃, and heater generally adopts heating tube, heating rod, resistance wire heating or exothermal infrared device.But, above-mentioned technical scheme has caused quickly shaping device too complicated, need set up the working chamber that is used to be incubated, the working chamber that sets up in addition is in closed state all the time in the material forming process, make that the duty of execution unit is difficult for observing in the working chamber, can't in time handle the variety of issue of real-time generation.
Summary of the invention
Too fast in order to prevent the moulding material cooling rate, quickly shaping device of the prior art need be set up the working chamber so that environment temperature to be provided, therefore caused the defective that can't in time handle the variety of issue of real-time generation that quickly shaping device is complicated and forming process is difficult for observation and causes thus, the invention provides a kind of quick shaping workbench, this workbench is a kind of open workbench from heating, and this workbench itself has heater in order to guarantee the environment temperature of moulding material; Adopt this workbench to need not to be provided with the working chamber, make that the course of work of material forming is visible fully so that in time handle the variety of issue that produces in real time.
Technical scheme:
The shaping workbench comprises bracing or strutting arrangement and heater fast, and the upper surface of described bracing or strutting arrangement comprises that a supporting surface is used to support formation of parts, and described heater is used for by providing environment temperature to the bracing or strutting arrangement heating and then to the moulding material of extruding.
Described bracing or strutting arrangement is metal material, glass material or stone matter.
Described bracing or strutting arrangement is the macromolecular material of anti-at least 150 degree temperature.
Described bracing or strutting arrangement is a platform.
Be distributed with convex-concave structure on the described supporting surface.
Described convex-concave structure is groove and/or a shrinkage pool spaced apart.
Be coated with polymer material layer on the described supporting surface, the upper surface of described polymer material layer is used to support formation of parts.
Described polymer material layer is plastic layer or resin bed or adhesive layer.
The thickness of described polymer material layer is not more than 5 millimeters.
The thickness of described polymer material layer is not more than 0.5 millimeter.
The upper surface of described polymer material layer is convex-concave structure or polymer material layer coating formation concaveconvex structure in interval on described supporting surface.
Described convex-concave structure is groove and/or a shrinkage pool spaced apart.
Described heater is positioned at the inside or the below of bracing or strutting arrangement.
The heating-up temperature of described heater is set in the positive and negative 30 degree scopes of moulding material softening temperature.
The heating-up temperature of described heater is set in the positive and negative 10 degree scopes of moulding material softening temperature.
Technique effect:
The invention provides a kind ofly from heating open quick shaping workbench, include and be used to support the bracing or strutting arrangement of formation of parts and be used for by to the bracing or strutting arrangement heating and then the moulding material of extruding is provided the heater of environment temperature.The quickly shaping device that this quick shaping workbench is broken must be provided with the traditional concept of the working chamber of sealing, the proposition of showing ingenuity a kind of open workbench, the benefit of open workbench not only is to have simplified the structure of quickly shaping device, the more important thing is and make forming process visual, no matter, all be a kind of breakthrough as teaching explanation or the duty of producing monitoring execution unit in the reality.In addition, still a kind of simultaneously workbench of this open workbench from heating, heater heats bracing or strutting arrangement, bracing or strutting arrangement with uniform temperature is to its ambient air heating, rising along with thermal current, formed thermal environment with certain limit, the moulding material of extruding its temperature in temperature-fall period just only can be reduced to the thermal environment temperature from melt temperature, and the physical unit thin layer that the moulding material of extruding deposition is solidified into directly contacts or is covered on the formation of parts of having piled up on the supporting surface with supporting surface, suppress the quick cooling of moulding material equally, therefore well solved the problem of the too fast formation of parts buckling deformation that brings of cooling rate.
Bracing or strutting arrangement can be chosen as a platform, is beneficial to the production and processing of bracing or strutting arrangement, can certainly select suitable shape according to actual condition.Bracing or strutting arrangement can be metal material, and is such as aluminium, copper, iron etc., not yielding and thermal conductivity is good.Certainly, also can select the macromolecular material of the relatively poor glass material of thermal conductivity or stone matter or anti-certain high temperature.
Be distributed with convex-concave structure on the supporting surface of bracing or strutting arrangement,, improve cohesive force between the two with the bottom surface of increase moulding material and the bond area between the supporting surface.Convex-concave structure can be the groove or the shrinkage pool of slotting or punching and obtain at supporting surface.
On supporting surface, can be coated with polymer material layer, the upper surface of polymer material layer is used to support formation of parts, to increase in the forming process support force to plastic part, polymer material layer can be selected plastic layer, resin bed or adhesive layer, preferably similar or compatible with material to be formed material supports cohesive force with further increase.Balanced polymer material layer can strengthen the advantage of support force and the shortcoming of poor thermal conductivity, shows that through experiment the thickness of the polymer material layer of coating preferably is not more than 5 millimeters, preferably, is not more than 0.5 millimeter.The upper surface of polymer material layer can be convex-concave structure, such as groove spaced apart or shrinkage pool, with the bottom surface of increase moulding material and the bond area between the polymer material layer upper surface.Polymer material layer can apply at interval on described supporting surface and form concaveconvex structure, such as: polymer material layer is made up of some macromolecular material bars spaced apart, perhaps be distributed with some through holes on the polymer material layer, this moment, polymer material layer did not cover supporting surface fully, supporting surface part at groove and place, shrinkage pool bottom surface directly contacts with air or moulding material, has greatly improved heat conduction efficiency.
Heater to the bracing or strutting arrangement heating can adopt resistance wire heating, electrothermal tube commonly used, panel heater or electrical bar heating etc.Heating and temperature control gets final product in the positive and negative 30 degree scopes of moulding material softening temperature, and in order further to control the shrinkage factor of formation of parts, heating-up temperature can be controlled in the positive and negative 10 degree scopes of moulding material softening temperature.
Description of drawings
Fig. 1 is be shaped the fast structural representation of first kind of embodiment of workbench of the present invention;
Fig. 2 is be shaped the fast structural representation of second kind of embodiment of workbench of the present invention;
Fig. 3 is be shaped the fast structural representation of the third embodiment of workbench of the present invention;
Fig. 4 is be shaped the fast structural representation of the 4th kind of embodiment of workbench of the present invention;
Fig. 5 is be shaped the fast structural representation of the 5th kind of embodiment of workbench of the present invention.
The Reference numeral example is as follows:
1,2,3,4, the 5-workbench that is shaped fast, 10,30, the 40-metal platform, 20-glass platform, 50-plastics platform, 11,21,31,41, the 51-heater, 32, the 42-plastic layer.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Be to be understood that, specific embodiment described herein is only in order to explain the present invention, and be not used in qualification the present invention, quick shaping workbench of the present invention is not limited to be applied in the melt extruded fast shaping technology simultaneously, can also be applied in the powder sintered fast shaping technology and fusion spray deposition processing (MJM～Melted JetModeling) in quick shaping field.
With reference to figure 1, be shaped the fast structural representation of first kind of embodiment of workbench of the present invention.This quick shaping workbench 1 includes metal platform 10 and heater 11 from top to bottom successively, metal platform 10 wherein can be aluminium platform, copper platform, iron platform etc., and heater 11 can be resistance wire heating, heating tube or heating rod heating and other heaters commonly used.In the forming process, it is supporting surface that the thermoplastic materials silk that nozzle is extruded solidifies the upper surface that is stacked into metal platform 10, the thermoplastic materials silk be extruded, its temperature only is cooled near the softening temperature of these plastics the buckling deformation of having avoided the plastic cool excessive velocities to cause from melt temperature in the solidification process.Providing of softening temperature is by the heating of the lower surface of 11 pairs of metal platforms 10 of heater, heat is transmitted to the supporting surface of metal platform 10 from the lower surface of metal platform 10, and the temperature of the supporting surface of metal platform 10 is along with the rising of thermal current has had influence on the superjacent air space of this supporting surface, and the thermal environment of the certain limit that forms.The temperature of heater 11 can be controlled in the positive and negative 30 degree scopes of softening temperature of this moulding material, for the further shrinkage factor of control moulding material, the temperature of heater 11 can further be controlled in the positive and negative 10 degree scopes of softening temperature of this moulding material.In the forming process of reality, also should consider the temperature of environment and the size of formation of parts, when environment temperature was on the low side, it was more to consider that heat can lose in the conductive process in air, can suitably improve the design temperature of heater; The volume of considering part to be formed is bigger, when being easier to contraction distortion, also can suitably improve the design temperature of heater.Certainly, according to the actual requirements, the metal platform 10 in the present embodiment also can adopt glass platform or Shitai County to substitute, because the poor thermal conductivity of glass platform and Shitai County is in metal platform, can suitably improve the heating-up temperature of heater 11, to guarantee the thermal environment temperature of moulding material.
Embodiment 2
See Fig. 2, be shaped the fast structural representation of second kind of embodiment of workbench of the present invention.This quick shaping workbench 2 includes glass platform 20 and heater 21 from top to bottom successively, be evenly equipped with groove on the upper surface of the glass platform 20 of this quick shaping workbench 2 (being supporting surface), purpose is: the surface of one, usefulness convex-concave replaces smooth plane, increased the bond area between supporting surface and the formation of parts bottom surface, improved the support force of supporting surface formation of parts; Two, the thermal conductivity of glass will be worse than metal material, offers groove on glass platform, can reduce the thickness of glass platform partly, more helps the heat conduction.Certainly, be not limited to this a kind of form of groove of offering, shrinkage pool that can also form for punching or network and other convex-concave structure all can play 2 above-mentioned effects.
See Fig. 3, be shaped the fast structural representation of the third embodiment of workbench of the present invention.Identical with the quick shaping workbench 1 among the embodiment 1, quick shaping workbench 3 in the present embodiment includes metal platform 30 and heater 31 from top to bottom successively, but different with the quick shaping workbench 1 among the embodiment 1 is: be coated with polymer material layer on the upper surface of the metal platform 30 of this workbench 3 that is shaped fast (being supporting surface), be preferably plastic layer 32, purpose is to increase in the forming process support force to moulding material, because the supporting surface of metal platform 30 can cause the plastics forming part easily to produce displacement on the metallic support face to the cohesive force of the plastics forming part after solidifying inadequately, influence part forming, and behind coating plastic layer 32 on the metallic support face, particularly apply the plastic layer of the plastic material similar or compatible with moulding material, can increase support force, improve forming accuracy moulding material.But because the thermal conductivity of plastics is relatively poor, therefore, the thickness of plastic layer preferably is not more than 5 millimeters, and is preferred, is not more than 0.5 millimeter.Certainly, according to actual condition, the plastic layer in the present embodiment can substitute with resin bed or adhesive layer.
Embodiment 4
See Fig. 4, be shaped the fast structural representation of the 4th kind of embodiment of workbench of the present invention.This quick shaping workbench 4 includes metal platform 40 and heater 41 from top to bottom successively, be coated with plastic layer 42 on the upper surface of metal platform 40 (being supporting surface), purpose is to increase in the forming process support force to moulding material, with embodiment 3 difference be, plastic layer 42 in the present embodiment is that plastic strip spaced apart is formed, formed concaveconvex structure, and the supporting surface between the plastic strip do not cover by plastic layer 42, therefore improved heat conducting efficient.Certainly, on plastic layer 42, offer some through holes or other structures make plastic layer become engraved structure, all can reach the effect that increases support force, improves heat conduction efficiency.
In addition,, can also adopt the technical scheme of offering convex-concave structure at the upper surface of plastic layer, to replace the engraved structure of plastic layer in order to increase the bond area between plastic layer 42 and the forming part bottom surface.
Embodiment 5
With reference to figure 5, be shaped the fast structural representation of the 5th kind of embodiment of workbench of the present invention.This quick shaping workbench 5 includes plastics platform 50 and heater 51 from top to bottom successively, the material of plastics platform 50 wherein can be selected the material similar or compatible with moulding material, to strengthen the support force to moulding material, heater 51 can be resistance wire heating, heating tube or heating rod heating etc. with the selection among the embodiment 1 is identical.Plastics platform 50 in the present embodiment is that with the marked difference of metal platform 10 thermal conductivity of plastics will be worse than the thermal conductivity of metal, therefore, can consider the heating-up temperature of suitable thickness that reduces the plastics platform or raising heater, to compensate the temperature loss that poor thermal conductivity is brought.In addition, in order to guarantee the operate as normal of plastics platform 50 under heated condition, the plastics that can select anti-at least 150 degree temperature usually are as plastics platform 50.Certainly, for increasing bond area, 2 described convex-concave structure can also be set on the supporting surface of plastics platform 50 as embodiment.
In addition, the heater in above-mentioned 5 embodiment all can be arranged on the inside of platform, to improve heat conducting efficient.
Claims (10)
1. the workbench that is shaped fast comprises bracing or strutting arrangement and heater, and the upper surface of described bracing or strutting arrangement comprises that a supporting surface is used to support formation of parts, and described heater is used for by providing environment temperature to the bracing or strutting arrangement heating and then to the moulding material of extruding.
2. quick shaping workbench according to claim 1 is characterized in that, described bracing or strutting arrangement is metal material, glass material or stone matter.
3. quick shaping workbench according to claim 1 is characterized in that, described bracing or strutting arrangement is the macromolecular material of anti-at least 150 degree temperature.
4. quick shaping workbench according to claim 1 is characterized in that described bracing or strutting arrangement is a platform.
5. according to the described quick shaping workbench of one of claim 1 to 4, it is characterized in that, be distributed with convex-concave structure on the described supporting surface.
6. quick shaping workbench according to claim 5 is characterized in that, described convex-concave structure is groove and/or a shrinkage pool spaced apart.
7. according to claim 1,2 or 4 described quick shaping workbench, it is characterized in that be coated with polymer material layer on the described supporting surface, the upper surface of described polymer material layer is used to support formation of parts.
8. quick shaping workbench according to claim 7 is characterized in that, the upper surface of described polymer material layer is convex-concave structure or polymer material layer coating formation concaveconvex structure in interval on described supporting surface.
9. quick shaping workbench according to claim 8 is characterized in that, described convex-concave structure is groove and/or a shrinkage pool spaced apart.
10. according to the described quick shaping workbench of claim 1-9, it is characterized in that described heater is positioned at the inside or the below of bracing or strutting arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010150610.1A CN102218807B (en) | 2010-04-16 | 2010-04-16 | Rapid forming working platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010150610.1A CN102218807B (en) | 2010-04-16 | 2010-04-16 | Rapid forming working platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102218807A true CN102218807A (en) | 2011-10-19 |
| CN102218807B CN102218807B (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010150610.1A Active CN102218807B (en) | 2010-04-16 | 2010-04-16 | Rapid forming working platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722744A (en) * | 2013-12-24 | 2014-04-16 | 吕诗林 | 3D (Three-Dimensional) printing method |
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| WO2001053060A2 (en) * | 2000-01-24 | 2001-07-26 | International Brain System S.A. | Method and device for transforming crystalline or semicrystalline polymers |
| CN1328888A (en) * | 2001-04-27 | 2002-01-02 | 清华大学 | Direct quick precision metal type forming method based on liquid thermochemical reaction |
| CN1772702A (en) * | 2005-09-26 | 2006-05-17 | 西安交通大学 | Technological process of making silicon carbide ceramic part based on smelting deposition and fast forming techn |
| CN201376328Y (en) * | 2009-04-07 | 2010-01-06 | 北京殷华激光快速成形与模具技术有限公司 | Molding bottom plate with easy taking-out from model |
| CN201769350U (en) * | 2010-04-16 | 2011-03-23 | 郭戈 | Quick forming workbench |
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2010
- 2010-04-16 CN CN201010150610.1A patent/CN102218807B/en active Active
Patent Citations (6)
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| JPH04158008A (en) * | 1990-10-23 | 1992-06-01 | Toyoda Gosei Co Ltd | Manufacture of door glass run for automobile |
| WO2001053060A2 (en) * | 2000-01-24 | 2001-07-26 | International Brain System S.A. | Method and device for transforming crystalline or semicrystalline polymers |
| CN1328888A (en) * | 2001-04-27 | 2002-01-02 | 清华大学 | Direct quick precision metal type forming method based on liquid thermochemical reaction |
| CN1772702A (en) * | 2005-09-26 | 2006-05-17 | 西安交通大学 | Technological process of making silicon carbide ceramic part based on smelting deposition and fast forming techn |
| CN201376328Y (en) * | 2009-04-07 | 2010-01-06 | 北京殷华激光快速成形与模具技术有限公司 | Molding bottom plate with easy taking-out from model |
| CN201769350U (en) * | 2010-04-16 | 2011-03-23 | 郭戈 | Quick forming workbench |
Non-Patent Citations (1)
| Title |
|---|
| 郭永红等: "快速成型设备一览", 《计算机辅助设计与制造》, no. 9, 30 September 2000 (2000-09-30), pages 36 - 38 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722744A (en) * | 2013-12-24 | 2014-04-16 | 吕诗林 | 3D (Three-Dimensional) printing method |
| CN103722744B (en) * | 2013-12-24 | 2016-01-20 | 吕诗林 | A kind of 3D Method of printing |
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| Publication number | Publication date |
|---|---|
| CN102218807B (en) | 2014-03-26 |
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Owner name: WUXI TAIER SHIDAI TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: GUO GE Effective date: 20150902 |
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Effective date of registration: 20150902 Address after: Wuxi District of Jiangsu city of Wuxi province Qingyuan Road 214028 No. 20 Taihu International Science Park sensor network university science and Technology Park Liye Building No. E601 Patentee after: The Wuxi times Blantyre Address before: 100083 Beijing city Haidian District Yihai Qinghua East Road No. 16 building room 1303 Patentee before: Guo Ge |