CN206241264U - A kind of 3D rapid forming equipments - Google Patents

A kind of 3D rapid forming equipments Download PDF

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Publication number
CN206241264U
CN206241264U CN201621210445.3U CN201621210445U CN206241264U CN 206241264 U CN206241264 U CN 206241264U CN 201621210445 U CN201621210445 U CN 201621210445U CN 206241264 U CN206241264 U CN 206241264U
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CN
China
Prior art keywords
powder
cylinder
control
ball
laser sintering
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Expired - Fee Related
Application number
CN201621210445.3U
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Chinese (zh)
Inventor
张新宇
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Tianjin Haoyu Seiko Technology Co Ltd
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Tianjin Haoyu Seiko Technology Co Ltd
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Priority to CN201621210445.3U priority Critical patent/CN206241264U/en
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Publication of CN206241264U publication Critical patent/CN206241264U/en
Expired - Fee Related legal-status Critical Current
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The utility model provides a kind of 3D rapid forming equipments.Including former body, product device, power spreading device, laser sintering device and control device, the inner chamber of the former body sets the product device, the power spreading device and the laser sintering device, the product device is arranged on the bottom of the former body, the power spreading device is arranged at the upper surface of the product device, the laser sintering device is arranged on the side wall of the shaped device body, the control device is arranged at the outside of the shaped device body, and the control device is set to be electrically connected with the power spreading device with the laser sintering device.The utility model can be realized the automatic recycling of unnecessary powder in recovery tank, be saved powder consumption, improve production efficiency, while fully ensuring that the uniformity and compactness of powdering so that the satisfactory mechanical property of three-dimensionally shaped product using the equipment, simple structure.

Description

A kind of 3D rapid forming equipments
Technical field
The utility model is related to rapid shaping technique field, more particularly to a kind of 3D rapid forming equipments.
Background technology
RP technique (abbreviation RP) be comprehensive utilization of C AD technologies, Numeric Control Technology, material science, mechanical engineering, Electronic technology and laser technology it is integrated realizing part from the technology for being designed into the integration of 3D solid raw basin, the technology It is successively to be superimposed material, and builds to form 3 D workpiece by melting layer by layer, it can manufactures some traditional handicrafts and be difficult to The 3 D workpiece of the complicated shape of completion, is generally divided into Stereolithography technology (SLA), Laminated Object Manufacturing (LOM), melts Thaw collapse accumulates manufacturing technology (FDM) and the major class of Selective Laser Sintering (SLS) four.Wherein, selective laser sintering (SLS) Precinct laser sintering is referred to alternatively as, its process principle is also discrete-accumulation molding, the technology is to process energy with generating laser Source, controlled using computer laser beam to rapidoprint (including macromolecular material, metal dust, prealloy powder powder material and Nano material etc.) by setting speed and adjust 2-D data information of the suitable laser energy density according to serial section profile It is sintered, layer upon layer, powder unnecessary around is removed after all having sintered, then is polished sintered part, dried etc. one Serial post-processing operation just can obtain part.But, existing Selective Laser Sintering is deposited in actual production process In following problem:
1st, traditional SLS rapid molding devices use single light source twin-tub lift roller power spreading device mostly, pass through Moulding cylinder, the cooperation for powder cylinder and recovery tank realize the production of whole product, after machining, the product in moulding cylinder are taken Go out, then the artificial unnecessary powder by recovery tank takes out and pours into in powder cylinder, not only processing efficiency is relatively low for which, powder consumption It is many, and manual labor amount is also very big.
2nd, in the prior art, the power spreading device of SLS rapid shapings is generally adopted by powdering roller or scraper plate, although existing Power spreading device can also realize the function of powder feeding and spreading, but because the powder laid is in loose nature, i.e. powder particle and particle Between gap it is larger, also easily cause that paving powder layer thickness is uneven, therefore caused by the powder three-dimensionally shaped product that obtains of manufacture Close property is poor, finally have impact on the mechanical performance of three-dimensionally shaped product.
The content of the invention
Main purpose of the present utility model is to solve problems of the prior art, there is provided a kind of simple structure, energy The automatic recycling of unnecessary powder in recovery tank is enough realized, powder consumption, improve production efficiency, while fully ensuring that paving is saved The uniformity and compactness of powder, so that the 3D rapid forming equipments of the satisfactory mechanical property of three-dimensionally shaped product.
In order to solve the above technical problems, the technical solution adopted in the utility model is:A kind of 3D rapid forming equipments, wherein The 3D rapid forming equipments include former body, product device, power spreading device, laser sintering device and control device, The inner chamber of the former body sets the product device, the power spreading device and the laser sintering device, the system Part device is arranged on the bottom of the former body, and the power spreading device is arranged at the upper surface of the product device, The laser sintering device is arranged on the side wall of the shaped device body, and the control device is arranged at the shaped device The outside of body, and the control device is set to be electrically connected with the power spreading device and the laser sintering device, by the control Device processed realizes the works fine of whole equipment;
The product device is set to include product body, moulding cylinder, for powder cylinder and recovery tank, the product body it is interior Chamber sets the moulding cylinder, the confession powder cylinder and the recovery tank, and the moulding cylinder is disposed adjacent with the confession powder cylinder, and described Moulding cylinder is respectively provided with the recovery tank with the opposite side of the confession powder cylinder, and the moulding cylinder is matched somebody with somebody with the inner chamber of the confession powder cylinder Close and a lifting forming bottom plate is set, the lifting forming bottom plate is set to be electrically connected with the control device, by the control Device causes the lifting forming bottom plate by setting thickness lift in height, so as to complete the production shaping of product, the recovery tank Bottom be set to connect the moulding cylinder and the confession powder cylinder by a control valve, and the control valve is set to be electrically connected with institute Control device is stated, after a Workpiece shaping processing is completed, the control device opens the control valve so that the recovery tank In powder enter the moulding cylinder and the confession powder cylinder, to realize the production of next workpiece, save powder consumption, if it is described into Unnecessary powder in type cylinder has been significantly larger than the powder in the confession powder cylinder, then exchange the position of the moulding cylinder and the confession powder cylinder Put, and cause that the powder in the recovery tank enters in the cylinder for powder position, so as to make full use of powder to carry out processing and forming;
The power spreading device is set to include drive device, supporting plate, power section, press-powder part and powder-laying roller, described Slided in drive device and the supporting plate is set, the power section is set in the supporting plate, the power section is set to The press-powder part and the powder-laying roller are driven, the power section is set to include motor, rotating shaft and two-groove belt pulley, described The rotating shaft is connected on the output shaft of motor, the two-groove belt pulley, a groove of the two-groove belt pulley are arranged in the rotating shaft It is set to connect the belt pulley on the press-powder part by belt, and another groove of the two-groove belt pulley is set to by belt The belt pulley on the powder-laying roller is connected, so as to realize the driving to the press-powder part and the powder-laying roller, the press-powder portion Set up separately and be set to including ramming body and flywheel, the two ends of the rammer body are set to be articulated with the supporting plate by rocking bar, and the rammer The setting flywheel is hinged on body, eccentric block is set on the flywheel, driven on the press-powder part by the power section The mating reaction of belt pulley, the flywheel and the rocking bar so that the press-powder part is treated sintering powder and flattens compression, is filled Code insurance demonstrate,proves the uniformity and compactness of powdering, to realize the good mechanical properties of three-dimensionally shaped product.
Further, the moulding cylinder is set to same size, and the moulding cylinder and the confession powder with the confession powder cylinder Include high frequency heating coil, thermal insulation layer and heat-insulation layer on the outer wall of cylinder, the high frequency heating coil engagement sleeves are located at two cylinders The outer surface of upper part, the two ends of the high frequency heating coil are set to connect a radio-frequency generator, by the radio-frequency generator The high frequency voltage of change at a high speed is produced, alternating magnetic field is formed when a current flows through the coil, and then vortex causes metallic atom at a high speed Random motion, atom collides with each other, rub generation heat energy, so that realize being molded the rapidly pre-warming of powder, improve production efficiency, And the outer surface of the high frequency heating coil sets the thermal insulation layer, the outer surface of the thermal insulation layer sets the heat-insulation layer, passes through The heat-insulation layer ensures the temperature of profiled member, it is to avoid the excessive influence to product quality of temperature difference.
Further, the radio-frequency generator is set to be electrically connected with the control device, is controlled by the control device The working condition of the radio-frequency generator, to realize the pre-heat treatment of the moulding cylinder or the confession powder cylinder powder to be formed, keeps away Exempt from damage of the excessive temperature differentials to profiled member.
Further, the laser sintering device is set to include laser generator, optical system and scanning mirror, described to swash The laser of optical generator by the optical system treatment, by the scanning mirror to the powder layer complete layer in the moulding cylinder Layer sintering, to obtain required part.
Further, the drive device is set to include motor, ball-screw and two guide rails, the motor It is set to connect the ball-screw, causes that the ball-screw rotates by the motor, and the ball-screw is transported Dynamic stationarity is good, and two guide rail parallel is arranged at the homonymy of the ball-screw, and two guide rail is corresponding is arranged at institute The both sides of moulding cylinder, the confession powder cylinder and the recovery tank are stated, the supporting plate is set to be slided by ball screw assembly, and set In on the ball-screw, and the bottom of the supporting plate also sets up two sliding blocks, and the sliding block is respectively cooperating with being arranged at the guide rail On, it is ensured that the straight line sliding of support frame as described above.
Further, it is set to be also connected with one speed reducer on the motor, according to actual needs, by the decelerator Control the rotation of the ball-screw, it is ensured that the sliding velocity of the supporting plate, two support bases also set up on the ball-screw, The support base can be prevented effectively from influence of the major axis to Sliding Structures on the ball-screw.
The utility model has the advantages and positive effects that:
(1) moulding cylinder is connected and for powder cylinder by control valve by recovery tank bottom so that add when a Workpiece shaping is completed After work, the powder in recovery tank can enter moulding cylinder under the unlatching of control valve and supply powder cylinder, realize the production of latter workpiece, save About powder consumption, if the unnecessary powder in moulding cylinder is significantly larger than for the powder in powder cylinder, exchanges moulding cylinder and supplies powder cylinder Position, and cause that the powder in recovery tank enters in the cylinder for powder position, so as to make full use of powder to carry out processing and forming.
(2) by the structure design of press-powder part, and powder-laying roller cooperation, realize press-powder part and treat sintering powder Flatten and compress, the uniformity and compactness of powdering are fully ensured that, to ensure the good mechanical properties of three-dimensionally shaped product.
(3) by high frequency heating coil and radio-frequency generator, the high frequency voltage of change at a high speed is produced by radio-frequency generator, when Electric current forms alternating magnetic field when flowing through coil, and then vortex causes metallic atom high speed random motion, and atom collides with each other, rubs Wipe and produce heat energy, so as to realize being molded what the rapidly pre-warming of powder, improve production efficiency, and high frequency heating coil outer surface were set Thermal insulation layer and heat-insulation layer, further ensure the temperature of profiled member, are prevented effectively from the excessive influence to product quality of temperature difference.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the top view of power spreading device part in Fig. 1.
In figure:10- former bodies, 20- product devices, 201- product bodies, 202- moulding cylinders, 203- supplies powder cylinder, 204- recovery tanks, 205- lifting forming bottom plates, 206- control valves, 207- high frequency heating coils, 208- thermal insulation layers, 209- insulations Layer, 210- radio-frequency generators, 30- power spreading devices, 301- drive devices, 302- supporting plates, 303- power sections, 304- press-powders portion Point, 305- powder-laying rollers, 306- motors, 307- rotating shafts, 308- two-groove belt pulleys, 309- rams body, and 310- flywheels, 311- drives electricity Machine, 312- ball-screws, 313- guide rails, 40- laser sintering devices, 401- laser generators, 402- optical systems, 403- scannings Mirror, 50- control devices.
Specific embodiment
In order to be better understood from the utility model, traveling one is entered to the utility model with reference to specific embodiments and the drawings The description of step.
As depicted in figs. 1 and 2, a kind of 3D rapid forming equipments, including former body 10, product device 20, powdering Device 30, laser sintering device 40 and control device 50, the inner chamber of former body 10 set product device 20, power spreading device 30 are arranged on the bottom of former body 10 with laser sintering device 40, product device 20, and power spreading device 30 is arranged at system The upper surface of part device 20, laser sintering device 40 is arranged on the side wall of shaped device body 10, and control device 50 is arranged at The outside of shaped device body 10, and the control device 50 is set to electric connection power spreading device 30 and laser sintering device 40, The works fine of whole equipment is realized by control device 50.
Product device 20 is set to include product body 201, moulding cylinder 202, for powder cylinder 203 and recovery tank 204, product sheet The inner chamber of body 201 sets moulding cylinder 202, for powder cylinder 203 and recovery tank 204, moulding cylinder 202 is disposed adjacent with confession powder cylinder 203, and Moulding cylinder 202 is respectively provided with recovery tank 204 with the opposite side for powder cylinder 203, and moulding cylinder 202 is matched somebody with somebody with the inner chamber for powder cylinder 203 Close and a lifting forming bottom plate 205 is set, lifting forming bottom plate 205 is set to be electrically connected with control device 50, and lifting formed sole Also embedded on plate 205 and a temperature sensor is set, temperature sensor is electrically connected with control device 50, real-time detection powder to be formed Preheating temperature, it is ensured that the quality of production of profiled member, by control device 50 cause lifting forming bottom plate 205 by setting thickness it is high Degree lifting, so as to complete the production shaping of product, the bottom of recovery tank 204 is set to connect moulding cylinder by a control valve 206 202 are set to be electrically connected with control device 50 with for powder cylinder 203, and the control valve 206, are processed when a Workpiece shaping is completed Afterwards, the opening controlling valve 206 of control device 50 so that the powder in recovery tank 204 enters moulding cylinder 202 and supplies powder cylinder 203, with reality The now production of a workpiece, saves powder consumption, if the unnecessary powder in moulding cylinder 202 has been significantly larger than in powder cylinder 203 Powder, then exchange moulding cylinder 202 and the position for powder cylinder 203, and cause that the powder in recovery tank 204 enters the cylinder for powder position In, so as to make full use of powder to carry out processing and forming.
Power spreading device 30 is set to include drive device 301, supporting plate 302, power section 303, press-powder part 304 and paving Powder roller 305, is slided in drive device 301 and sets supporting plate 302, and power section 303, power section 303 are set in supporting plate 302 It is set to drive press-powder part 304 and powder-laying roller 305, power section 303 is set to include motor 306, rotating shaft 307 and double flute skin Belt wheel 308, connection rotating shaft 307 on the output shaft of motor 306 is arranged two-groove belt pulley 308, two-groove belt pulley 308 in rotating shaft 307 A groove be set to connect the belt pulley on press-powder part 304 by belt, and another groove of the two-groove belt pulley 308 is set to Belt pulley on powder-laying roller 305 is connected by belt, so as to realize the driving to press-powder part 304 and powder-laying roller 305, press-powder portion 304 are divided to be set to include ramming body 309 and flywheel 310, the two ends for ramming body 309 are set to be articulated with supporting plate 302 by rocking bar, And setting flywheel 310 is hinged on the rammer body 309, and eccentric block is set on flywheel 310, press-powder part 304 is driven by power section 303 On belt pulley, flywheel 310 and rocking bar mating reaction so that press-powder part 304 treat sintering powder flatten compress, fully Ensure the uniformity and compactness of powdering, to realize the good mechanical properties of three-dimensionally shaped product.
Moulding cylinder 202 is set to same size with for powder cylinder 203, and is wrapped on moulding cylinder 202 and the outer wall of confession powder cylinder 203 High frequency heating coil 207, thermal insulation layer 208 and heat-insulation layer 209 are included, the engagement sleeves of high frequency heating coil 207 are located at the upper part of two cylinders Outer surface, the two ends of high frequency heating coil 207 are set to connect a radio-frequency generator 210, and height is produced by radio-frequency generator 210 The high frequency voltage of speed change, forms alternating magnetic field, and then be vortexed so that metallic atom high speed is random when a current flows through the coil Motion, atom collides with each other, rub generation heat energy, so as to realize being molded the rapidly pre-warming of powder, improve production efficiency, and the height The outer surface of frequency heating coil 207 sets thermal insulation layer 208, and the outer surface of thermal insulation layer 208 sets heat-insulation layer 209, by heat-insulation layer 209 temperature for ensureing profiled member, it is to avoid the excessive influence to product quality of temperature difference.
Radio-frequency generator 210 is set to be electrically connected with control device 50, and radio-frequency generator 210 is controlled by control device 50 Working condition, to realize moulding cylinder 202 or the pre-heat treatment for powder to be formed in powder cylinder 203, it is to avoid excessive temperature differentials is to shaping The damage of part.
Laser sintering device 40 is set to include laser generator 401, optical system 402 and scanning mirror 403 that laser occurs The laser of device 401 is completed to burn layer by layer by scanning mirror 403 by the treatment of optical system 402 to the powder layer in moulding cylinder 202 Knot, to obtain required part.
Drive device 301 is set to include motor 311, the guide rail 313 of ball-screw 312 and two that motor 311 sets Connection ball-screw 312 is set to, causes that ball-screw 312 rotates by motor 311, and the stable movement of ball-screw 312 Property it is good, two guide rails 313 are set in parallel in the homonymy of ball-screw 312, and two guide rails 313 are corresponding is arranged at moulding cylinder 202, supplies The both sides of powder cylinder 203 and recovery tank 204, supporting plate 302 is set to be slideably positioned in ball-screw 312 by ball screw assembly, On, and the bottom of the supporting plate 302 also sets up two sliding blocks, sliding block is respectively cooperating with being arranged on guide rail 313, it is ensured that support frame 302 Straight line sliding.
It is set to be also connected with one speed reducer on motor 311, according to actual needs, ball-screw is controlled by decelerator 312 rotation, it is ensured that the sliding velocity of supporting plate 302, also sets up two support bases on ball-screw 312, support base can be effective Avoid influence of the major axis to Sliding Structures on ball-screw 312.
The 3D rapid forming equipments provided using the utility model, simple structure can realize unnecessary powder in recovery tank Automatic recycling, save powder consumption, improve production efficiency, while fully ensure that the uniformity and compactness of powdering, with Make the satisfactory mechanical property of three-dimensionally shaped product.When the equipment works, the lifting in moulding cylinder 202 is controlled by control device 50 Forming bottom plate 205 declines a height for thickness, and rises one and half thickness for the lifting forming bottom plate 205 in powder cylinder 203 Highly, motor 311 and motor 306 are then started so that for the powder of one and half thickness that is higher by powder cylinder 203 in press-powder Under the cooperation of part 304 and powder-laying roller 305, it is pushed to and flattens and be pressed in a powder for thickness in moulding cylinder 202, it is unnecessary Powder is then fallen into recovery tank 204, when power spreading device 30 retreats to the both sides of the upper surface of product body 201, closes motor 311 are powered with motor 306, startup radio-frequency generator 210 to the high frequency heating coil 207 on moulding cylinder 202, realize moulding cylinder The pre-heat treatment of powder to be formed in 202, it is to avoid damage of the excessive temperature differentials to profiled member, after reaching preset temperature value, closes high Frequency generator 210, starts laser sintering device 40 and is sintered according to the 2-D data information of setting serial section profile, completes Laser sintering device 40 is closed afterwards, is repeated the above steps, carry out layer upon layer, until after all having sintered, then sintered part is entered A series of post-processing operations such as row polishing, drying, by the opening controlling valve 206 of control device 50 so that the powder in recovery tank 204 Into moulding cylinder 202 with for powder cylinder 203, to realize the production of next workpiece, powder consumption is saved, if many in moulding cylinder 202 Remaining powder has been significantly larger than for the powder in powder cylinder 203, then exchange moulding cylinder 202 and the position for powder cylinder 203, and causes to reclaim Powder in cylinder 204 enters in the cylinder for powder position, just can be obtained without part so as to make full use of powder to carry out processing and forming.
Embodiment of the present utility model has been described in detail above, but the content is only of the present utility model preferable Embodiment, it is impossible to be considered as limiting practical range of the present utility model.All impartial changes made according to the utility model scope Change and improve etc., all should still belong within this patent covering scope.

Claims (6)

1. a kind of 3D rapid forming equipments, it is characterised in that:The 3D rapid forming equipments include that former body, product are filled Put, power spreading device, laser sintering device and control device, the inner chamber of the former body sets the product device, institute Power spreading device and the laser sintering device are stated, the product device is arranged on the bottom of the former body, described Power spreading device is arranged at the upper surface of the product device, and the laser sintering device is arranged at the side of the shaped device body On wall, the control device is arranged at the outside of the shaped device body, and the control device is set to described in electric connection Power spreading device and the laser sintering device;
The product device is set to include product body, moulding cylinder, for powder cylinder and recovery tank, the inner chamber of the product body sets The moulding cylinder, the confession powder cylinder and the recovery tank are put, the moulding cylinder is disposed adjacent with the confession powder cylinder, and the shaping Cylinder and the opposite side of the confession powder cylinder are respectively provided with the recovery tank, and the moulding cylinder coordinates with the inner chamber of the confession powder cylinder and sets A lifting forming bottom plate is put, the lifting forming bottom plate is set to be electrically connected with the control device, the bottom of the recovery tank It is set to be set to be electrically connected with the control with the confession powder cylinder, and the control valve by a control valve connection moulding cylinder Device;
The power spreading device is set to include drive device, supporting plate, power section, press-powder part and powder-laying roller, the driving Slided on device and the supporting plate is set, the power section is set in the supporting plate, the power section is set to drive The press-powder part and the powder-laying roller, the power section are set to include motor, rotating shaft and two-groove belt pulley, the motor Output shaft on connect the rotating shaft, be arranged the two-groove belt pulley in the rotating shaft, a groove of the two-groove belt pulley is set It is that the belt pulley on the press-powder part is connected by belt, and another groove of the two-groove belt pulley is set to be connected by belt Belt pulley on the powder-laying roller, the press-powder part is set to include ramming body and flywheel, and the two ends of the rammer body are set to lead to Cross rocking bar to be articulated with the supporting plate, and the setting flywheel is hinged on the rammer body, eccentric block is set on the flywheel.
2. 3D rapid forming equipments according to claim 1, it is characterised in that:The moulding cylinder is set with the confession powder cylinder It is same size, and includes high frequency heating coil, thermal insulation layer and heat-insulation layer on the moulding cylinder and the outer wall of the confession powder cylinder, The high frequency heating coil engagement sleeves are set to connect located at the outer surface of the upper part of two cylinders, the two ends of the high frequency heating coil A radio-frequency generator is connect, and the outer surface of the high frequency heating coil sets the thermal insulation layer, the outer surface of the thermal insulation layer is set The heat-insulation layer.
3. 3D rapid forming equipments according to claim 2, it is characterised in that:The radio-frequency generator is set to electrically connect Connect the control device.
4. 3D rapid forming equipments according to claim 1, it is characterised in that:The laser sintering device is set to include Laser generator, optical system and scanning mirror.
5. 3D rapid forming equipments according to claim 1, it is characterised in that:The drive device is set to include driving Motor, ball-screw and two guide rails, the motor are set to connect the ball-screw, and two guide rail parallel is arranged at The homonymy of the ball-screw, and two guide rail is corresponding is arranged at the moulding cylinder, the confession powder cylinder and the recovery tank Both sides, the supporting plate is set to be slideably positioned on the ball-screw by ball screw assembly, and the supporting plate bottom Portion also sets up two sliding blocks, and the sliding block is respectively cooperating with being arranged on the guide rail.
6. 3D rapid forming equipments according to claim 5, it is characterised in that:It is set to be also connected with the motor One speed reducer, also sets up two support bases on the ball-screw.
CN201621210445.3U 2016-11-10 2016-11-10 A kind of 3D rapid forming equipments Expired - Fee Related CN206241264U (en)

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Application Number Priority Date Filing Date Title
CN201621210445.3U CN206241264U (en) 2016-11-10 2016-11-10 A kind of 3D rapid forming equipments

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019024077A1 (en) * 2017-08-04 2019-02-07 吴江中瑞机电科技有限公司 Powder sintering 3d printing system and powder supply method thereof
CN109517376A (en) * 2018-11-09 2019-03-26 湖南华曙高科技有限责任公司 Nylon powder material preparation method for selective laser sintering
CN109894612A (en) * 2019-03-12 2019-06-18 北京易博三维科技有限公司 High-temperature metal 3D printer and Method of printing based on intermediate frequency electromagnetic principle of heating
CN111590885A (en) * 2020-06-16 2020-08-28 哈尔滨自由智造科技开发有限公司 Desktop level 3D printing apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019024077A1 (en) * 2017-08-04 2019-02-07 吴江中瑞机电科技有限公司 Powder sintering 3d printing system and powder supply method thereof
CN109517376A (en) * 2018-11-09 2019-03-26 湖南华曙高科技有限责任公司 Nylon powder material preparation method for selective laser sintering
CN109517376B (en) * 2018-11-09 2021-08-03 湖南华曙高科技有限责任公司 Preparation method of nylon powder material for selective laser sintering
CN109894612A (en) * 2019-03-12 2019-06-18 北京易博三维科技有限公司 High-temperature metal 3D printer and Method of printing based on intermediate frequency electromagnetic principle of heating
CN111590885A (en) * 2020-06-16 2020-08-28 哈尔滨自由智造科技开发有限公司 Desktop level 3D printing apparatus

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