CN113954365A - Fused deposition 3D printing device for preparing functional gradient composite material - Google Patents
Fused deposition 3D printing device for preparing functional gradient composite material Download PDFInfo
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- CN113954365A CN113954365A CN202111395931.2A CN202111395931A CN113954365A CN 113954365 A CN113954365 A CN 113954365A CN 202111395931 A CN202111395931 A CN 202111395931A CN 113954365 A CN113954365 A CN 113954365A
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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
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
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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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
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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
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
- B33Y40/20—Post-treatment, e.g. curing, coating or polishing
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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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1658—Cooling using gas
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a fused deposition 3D printing device for preparing a functional gradient composite material, which comprises a transmission mechanism, a printing mechanism and a control mechanism, wherein the transmission mechanism comprises a support frame, a movable plate, a first transmission assembly matched with the movable plate, first slide bars erected on two sides of the support frame, slide blocks sleeved on rod bodies of the two first slide bars in a sliding manner, a second transmission assembly arranged at the top ends of the two first slide bars, a first connecting rod arranged between the slide blocks, a fused injection module sleeved on the first connecting rod in a sliding manner, and a third transmission assembly matched with the fused injection module; the heat dissipation mechanism comprises an angle adjusting assembly matched with the moving plate and a blowing module matched with the angle adjusting assembly; the invention is provided with the heat dissipation mechanism, and the angle of the blowing module in the heat dissipation mechanism can be adjusted along with the height of the printed object.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a fused deposition 3D printing device for preparing a functional gradient composite material.
Background
The 3D printing technology, also known as Additive Manufacturing (Additive Manufacturing) technology and Rapid prototyping (Rapid prototyping) technology, firstly obtains a three-dimensional solid model, and then performs slicing processing to obtain a two-dimensional slice file, thereby completing a digital layering process; and then, under the drive of the two-dimensional layer files, liquid photosensitive resin materials, powder materials, foil materials, wire materials and the like are manufactured in a layered mode and accumulated layer by applying a proper process method, and finally, a three-dimensional physical model is obtained. The 3D printing technology can directly generate objects in any shape from computer graphic data without machining or molds, thereby greatly shortening the production period of products and improving the productivity. 3D printing technology can be used in many areas such as jewelry, footwear, industrial design, architecture, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, etc., often to make models or for direct manufacturing of some products. In recent years, 3D printing technology has gained wide attention worldwide.
Among many process methods for realizing the 3D printing technology, fused deposition modeling 3D printing utilizes low-melting-point fusible wire materials to form a real object by melting and layer-by-layer deposition, and has the advantages of low use and maintenance cost, low consumable material cost, easy manufacture in a desktop machine mode and highest marketization degree at present. However, the high-temperature fuse has residual temperature after being ejected, has certain fluidity, and the fuse deposited layer by layer has slight collapse phenomenon if the fuse cannot be rapidly cooled, so that the printed product has defects, and the strength of the whole object is not high enough, thereby restricting the development of the 3D printing process.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the problems existing in the existing fused deposition 3D printing apparatus for preparing a functionally graded composite material.
Therefore, the problem to be solved by the present invention is how to rapidly cool the ejected high-temperature fuse.
In order to solve the technical problems, the invention provides the following technical scheme: a fused deposition 3D printing device for preparing a functional gradient composite material comprises a transmission mechanism, a movable plate, a first transmission assembly, first slide rods, sliding blocks, a second transmission assembly, a first connecting rod, a fused injection module and a third transmission assembly, wherein the movable plate is matched with the support frame, the first transmission assembly is matched with the movable plate in a pulling mode, the first slide rods are erected on two sides of the support frame, the sliding blocks are respectively sleeved on rod bodies of the two first slide rods in a sliding mode, the second transmission assembly is arranged at the top ends of the two first slide rods and matched with the sliding blocks, the first connecting rod is arranged between the two sliding blocks, the fused injection module is sleeved on the first connecting rod in a sliding mode, the third transmission assembly is arranged on one side of the sliding blocks and matched with the fused injection module in a pulling mode, the fused injection module comprises a moving frame and an injection head, the moving frame is sleeved on the first connecting rod in a sliding mode, and the injection head is fixed on the moving frame, the hot melting piece is fixed on the movable frame; and the heat dissipation mechanism comprises an angle adjusting component matched with the moving plate and a blowing module matched with the angle adjusting component.
As a preferable aspect of the fused deposition 3D printing apparatus for preparing a functionally graded composite material according to the present invention, wherein: first transmission assembly is including setting up the first drive motor of support frame front side, and set up in first pulley and the second pulley of both sides around the support frame, first drive motor's output and first gear drive are connected, first gear with first pulley with the cover is equipped with first chain between the second pulley, bilateral symmetry is provided with the second slide bar around the support frame, the bottom of movable plate slide cup joint in the second slide bar, the both ends of first chain are fixed in respectively the top of movable plate.
As a preferable aspect of the fused deposition 3D printing apparatus for preparing a functionally graded composite material according to the present invention, wherein: four corners at the top end of the moving plate are connected with the supporting plate through the stand columns.
As a preferable aspect of the fused deposition 3D printing apparatus for preparing a functionally graded composite material according to the present invention, wherein: the top of two first slide bars is fixed with the second connecting rod through the connecting plate respectively, second drive assembly including set up in the second drive motor on connecting plate top, and run through the connecting plate and the threaded rod of downwardly extending, the threaded rod with the output transmission of second drive motor is connected.
As a preferable aspect of the fused deposition 3D printing apparatus for preparing a functionally graded composite material according to the present invention, wherein: the sliding block with the corresponding position of threaded rod is provided with the screw hole, the threaded rod with screw hole screw-thread fit.
As a preferable aspect of the fused deposition 3D printing apparatus for preparing a functionally graded composite material according to the present invention, wherein: the third transmission assembly comprises a third rotating motor arranged on one side of the sliding block and a third pulley arranged on one side of the sliding block, the output end of the third rotating motor is connected with a second gear in a transmission manner, a second chain is sleeved between the second gear and the third pulley, and two ends of the second chain are fixed on the moving frame.
As a preferable aspect of the fused deposition 3D printing apparatus for preparing a functionally graded composite material according to the present invention, wherein: the angle adjusting assembly comprises a first limiting frame arranged on the left side and the right side of the top end of the supporting plate, a rack plate inserted in the first limiting frame, a second limiting frame arranged on one side of the moving frame, two first sliding plates inserted in the second limiting frame in a sliding mode, a third limiting frame arranged on the left side and the right side of the back face of the rack plate, a second sliding plate inserted in the third limiting frame in a sliding mode, and a connecting plate for connecting the second sliding plate and the first sliding plates.
As a preferable aspect of the fused deposition 3D printing apparatus for preparing a functionally graded composite material according to the present invention, wherein: the first limiting frame comprises two first straight plates which are symmetrically arranged, a second straight plate which is connected with the two first straight plates, and two limiting blocks which are symmetrically arranged on the two first straight plates, the second limiting frame is provided with two first through holes which are parallel to each other, the two first sliding plates are respectively inserted into the two first through holes in a sliding mode, the third limiting frame is provided with a second through hole, and the second sliding plates are inserted into the second through holes in a sliding mode.
As a preferable aspect of the fused deposition 3D printing apparatus for preparing a functionally graded composite material according to the present invention, wherein: the angle adjusting assembly further comprises a first rotating shaft and a second rotating shaft which are arranged between the two first straight plates in a rotating mode, a rotating gear is arranged in the middle of the first rotating shaft, the rotating gear is meshed with the rack plate, a tooth missing gear is arranged in the middle of the second rotating shaft, the tooth missing gear is meshed with the rotating gear, and the radian of teeth of the tooth missing gear is 80 degrees.
As a preferable aspect of the fused deposition 3D printing apparatus for preparing a functionally graded composite material according to the present invention, wherein: the blowing module comprises supporting blocks arranged on two sides of the bottom end of the second rotating shaft and a servo motor arranged on the top end of the supporting blocks, the output end of the servo motor is in transmission connection with the output rotating shaft, and rotating blades are arranged on the output rotating shaft.
The invention has the beneficial effects that: the invention is provided with the heat dissipation mechanism, and the angle of the blowing module in the heat dissipation mechanism can be adjusted along with the height of the printed object, so that the blowing module always cools the high-temperature fuse which is just ejected.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a perspective view of a fused deposition 3D printing apparatus for preparing functionally graded composites.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is another perspective view of a fused deposition 3D printing device for preparing functionally graded composites.
Fig. 4 is a block diagram of a melt jet module in a fused deposition 3D printing apparatus for making functionally graded composites.
Fig. 5 is a block diagram of a carriage in a fused deposition 3D printing apparatus for preparing a functionally graded composite material.
Fig. 6 is a block diagram of an angle adjustment assembly in a fused deposition 3D printing device for making functionally graded composites.
Fig. 7 is a structural diagram of a first position-limiting frame in a fused deposition 3D printing device for preparing a functionally graded composite material.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 5, for a first embodiment of the present invention, the embodiment provides a fused deposition 3D printing apparatus for preparing a functionally graded composite material, the fused deposition 3D printing apparatus for preparing a functionally graded composite material includes a transmission mechanism 100 and a heat dissipation mechanism 200, the transmission mechanism 100 is configured to perform three-dimensional movement on a melt injection module 108, and after the melt injection module 108 injects a high-temperature fuse, the heat dissipation mechanism 200 dissipates heat of the high-temperature fuse, so that a formed object is highly complete.
Specifically, the transmission mechanism 100 includes a support frame 101, a moving plate 102 matched with the support frame 101, a first transmission assembly 103 matched with the moving plate 102 in a pulling manner, first sliding rods 104 erected at two sides of the support frame 101, sliding blocks 105 respectively sleeved on rod bodies of the two first sliding rods 104 in a sliding manner, a second transmission assembly 106 arranged at top ends of the two first sliding rods 104 and matched with the sliding blocks 105, a first connecting rod 107 arranged between the two sliding blocks 105, a melt injection module 108 sleeved on the first connecting rod 107 in a sliding manner, and a third transmission assembly 109 arranged at one side of the sliding blocks 105 and matched with the melt injection module 108 in a pulling manner, wherein the melt injection module 108 includes a moving frame 108a sleeved on the first connecting rod 107 in a sliding manner, an injection head 108b fixed on the moving frame 108a, and a hot melting piece 108c fixed on the moving frame 108 a; one end of the external fuse material is put into the thermal fuse 108c, and the fuse material is melted by the thermal fuse 108c and the molten fuse is ejected from the ejection head 108 b.
Preferably, the heat dissipation mechanism 200 includes an angle adjustment assembly 201 matched with the moving plate 102, and a blowing module 202 matched with the angle adjustment assembly 201; since the high-temperature fuse has a residual temperature after being ejected from the ejection head 108b and has a certain fluidity, the fuse deposited layer by layer will slightly collapse if it cannot be rapidly cooled, so that the fuse deposited layer by layer is rapidly cooled by the blowing heat dissipation of the blowing module 202.
Preferably, the first transmission assembly 103 comprises a first transmission motor 103a arranged at the front side of the support frame 101, and a first pulley 103b and a second pulley 103c arranged at the front and rear sides of the support frame 101, an output end of the first transmission motor 103a is in transmission connection with a first gear 103a-1, a first chain 103d is sleeved between the first gear 103a-1 and the first pulley 103b and the second pulley 103c, second slide bars 101a are symmetrically arranged at the front and rear sides of the support frame 101, a bottom end of the moving plate 102 is slidably sleeved on the second slide bar 101a, and two ends of the first chain 103d are respectively fixed at the top end of the moving plate 102; after the first driving motor 103a is turned on, the first gear 103a-1 is driven to rotate clockwise or counterclockwise, the first gear 103a-1 drives the first chain 103d to rotate clockwise or counterclockwise, and since two ends of the first chain 103d are respectively fixed to the top end of the moving plate 102, the movement of the moving plate 102 can be driven by the movement of the first chain 103 d.
Preferably, four corners of the top end of the moving plate 102 are connected with the supporting plate 102a through the upright posts; the movement of the moving plate 102 drives the movement of the supporting plate 102a, and the supporting plate 102a is used for bearing the fuse wire which is sprayed by the spraying head 108b and is deposited layer by layer.
Preferably, the top ends of the two first sliding bars 104 are respectively fixed with the second connecting bar 104b through a connecting plate 104a, the second transmission assembly 106 includes a second transmission motor 106a disposed at the top end of the connecting plate 104a, and a threaded rod 106b extending downward through the connecting plate 104a, the threaded rod 106b is in transmission connection with the output end of the second transmission motor 106 a.
Preferably, a threaded hole 105a is formed in the position, corresponding to the threaded rod 106b, of the sliding block 105, and the threaded rod 106b is in threaded fit with the threaded hole 105 a; when the second transmission motor 106a is turned on, the clockwise or counterclockwise rotation of the second transmission motor 106a can drive the clockwise or counterclockwise rotation of the threaded rod 106b, and the sliding block 105 can move upwards or downwards according to the clockwise or counterclockwise rotation of the threaded rod 106b because the threaded rod 106b is in threaded fit with the threaded hole 105 a.
Preferably, the third transmission assembly 109 comprises a third rotating motor 109a arranged on one side of the sliding block 105 and a third pulley 109b arranged on one side of the sliding block 105, an output end of the third rotating motor 109a is in transmission connection with a second gear 109a-1, a second chain 109c is sleeved between the second gear 109a-1 and the third pulley 109b, and two ends of the second chain 109c are fixed on the moving frame 108 a; the third rotating motor 109a is turned on, the third rotating motor 109a drives the second gear 109a-1 to rotate clockwise or counterclockwise, the second gear 109a-1 drives the second chain 109c to move clockwise or counterclockwise, and the moving frame 108a moves left and right under the driving of the second chain 109c because both ends of the second chain 109c are fixed on the moving frame 108 a.
When the thermal fuse unit is used, one end of an external fuse material is placed into the thermal fuse 108c, the fuse material is melted under the action of the thermal fuse 108c, and then the ejection head 108b ejects a fuse in a melted state, which is the prior art of 3D printing and is not repeated, after the first transmission motor 103a is started, the first gear 103a-1 is driven to rotate clockwise or counterclockwise, the first gear 103a-1 drives the first chain 103D to rotate clockwise or counterclockwise, because two ends of the first chain 103D are respectively fixed at the top end of the moving plate 102, the movement of the first chain 103D can drive the moving plate 102 to move, the moving plate 102a is driven to move back and forth by the movement of the moving plate 102, the supporting plate 102a is used for bearing fuses ejected by the ejection head 108b layer by layer, the second transmission motor 106a is started, the clockwise or counterclockwise rotation of the second transmission motor 106a can drive the threaded rod 106b to rotate clockwise or counterclockwise, because the threaded rod 106b is in threaded fit with the threaded hole 105a, the sliding block 105 moves up or down according to the clockwise or counterclockwise rotation of the threaded rod 106b, the up-and-down movement of the sliding block 105 drives the up-and-down movement of the melt injection module 108, the third rotating motor 109a is started, the third rotating motor 109a drives the second gear 109a-1 to rotate clockwise or counterclockwise, the second gear 109a-1 drives the second chain 109c to move clockwise or counterclockwise, and because the two ends of the second chain 109c are fixed on the moving frame 108a, the moving frame 108a moves left and right under the drive of the second chain 109c, and the first driving motor 103a, the second driving motor 106a and the third rotating motor 109a are electrically connected with the PLC control system, so that the PLC control system controls the first driving motor 103a, the second driving motor 106a, and the third rotating motor 109a to move left and right according to the object to be printed, The second transmission motor 106a and the third rotation motor 109a rotate to further control the melt-blowing module 108 to perform three-dimensional movement, and since the high-temperature fuse has a certain fluidity after being blown out by the blowing head 108b, the fuse deposited layer by layer can be rapidly cooled due to slight collapse if the fuse deposited layer by layer can not be rapidly cooled, and the fuse deposited layer by layer can be rapidly cooled under the blowing heat dissipation effect of the blowing module 202, thereby avoiding the occurrence of slight collapse if the fuse deposited layer by layer can not be rapidly cooled.
Example 2
Referring to fig. 1 to 7, a second embodiment of the present invention is based on the above embodiment.
Specifically, the angle adjusting assembly 201 includes a first limiting frame 201a disposed on the left and right sides of the top end of the supporting plate 102a, a rack plate 201b inserted in the first limiting frame 201a, a second limiting frame 201c disposed on one side of the moving frame 108a, two first sliding plates 201d inserted in the second limiting frame 201c in a sliding manner, third limiting frames 201e disposed on the left and right sides of the back surface of the rack plate 201b, a second sliding plate 201f inserted in the third limiting frame 201e in a sliding manner, and a connecting plate 201g connecting the second sliding plate 201f and the first sliding plate 201 d; in the process of printing an object, as printed objects are stacked layer by layer and become higher, the melt-blowing module 108 is slowly moved upwards under the control of the second transmission motor 106a, the melt-blowing module 108 drives the second limit frame 201c to move upwards in the process of moving upwards, the first sliding plate 201d is inserted and connected in the second limit frame 201c in a sliding manner, the first sliding plate 201d drives the second sliding plate 201f to move upwards through the connecting plate 201g, the second sliding plate 201f drives the rack plate 201b to move upwards because the second sliding plate 201f is inserted and connected in the third limit frame 201e in a sliding manner, when the melt-blowing module 108 moves back and forth or moves left and right under the first transmission motor 103a and the third rotation motor 109a, the first sliding plate 201d is inserted and connected in the second limit frame 201c in a sliding manner, so that the first sliding plate 201d does not affect the vertical position of the rack plate 201b, since the second sliding plate 201f is slidably inserted into the third stopper frame 201e, the second sliding plate 201f does not affect the vertical position of the rack plate 201 b.
Preferably, the first limit frame 201a includes two first straight plates 201a-1 symmetrically disposed, a second straight plate 201a-2 connecting the two first straight plates 201a-1, and two limit blocks 201a-3 symmetrically disposed on the two first straight plates 201a-1, the second limit frame 201c is provided with two first through holes 201c-1 parallel to each other, the two first sliding plates 201d are respectively inserted into the two first through holes 201c-1 in a sliding manner, the third limit frame 201e is provided with a second through hole 201e-1, and the second through hole 201e-1 is inserted with a second sliding plate 201f in a sliding manner.
Specifically, the angle adjusting assembly 201 further comprises a first rotating shaft 201h and a second rotating shaft 201i which are rotatably arranged between the two first straight plates 201a-1, a rotating gear 201j is arranged in the middle of the first rotating shaft 201h, the rotating gear 201j is meshed with the rack plate 201b, a tooth-missing gear 201k is arranged in the middle of the second rotating shaft 201i, the tooth-missing gear 201k is meshed with the rotating gear 201j, and the radian formed by teeth of the tooth-missing gear 201k is 80 degrees; since the rotating gear 201j is engaged with the rack plate 201b, when the rack plate 201b is moved upward, the rotating gear 201j rotates counterclockwise, and the rotating gear 201j is engaged with the gear 201k having no teeth, so that the gear 201k having no teeth rotates clockwise, and since the curvature of the teeth of the gear 201k having no teeth is 80 degrees, when the rack plate 201b is moved upward, the angle of rotation of the second rotating shaft 201i by the gear 201k having no teeth does not exceed 80 degrees, and when the rack plate 201b is moved upward all the time, the curvature of the teeth of the gear 201k having no teeth is 80 degrees, so that the angle of rotation of the second rotating shaft 201i is maintained at 80 degrees all the time.
Preferably, the blowing module 202 includes supporting blocks 202a disposed at two sides of the bottom end of the second rotating shaft 201i, and a servo motor 202b disposed at the top end of the supporting blocks 202a, an output end of the servo motor 202b is in transmission connection with the output rotating shaft 202c, and the output rotating shaft 202c is provided with rotating blades 202 d; since the radian formed by the teeth of the gear 201k is 80 degrees, the second rotating shaft 201i is always rotated at an angle of 80 degrees when the rack plate 201b is always driven to move upwards, and the blowing module 202 is also always maintained at an angle of 80 degrees to blow air obliquely upwards towards the object for cooling.
When the thermal fuse unit is used, one end of an external fuse material is placed into the thermal fuse 108c, the fuse material is melted under the action of the thermal fuse 108c, and then the ejection head 108b ejects a fuse in a melted state, which is the prior art of 3D printing and is not repeated, after the first transmission motor 103a is started, the first gear 103a-1 is driven to rotate clockwise or counterclockwise, the first gear 103a-1 drives the first chain 103D to rotate clockwise or counterclockwise, because two ends of the first chain 103D are respectively fixed at the top end of the moving plate 102, the movement of the first chain 103D can drive the moving plate 102 to move, the moving plate 102a is driven to move back and forth by the movement of the moving plate 102, the supporting plate 102a is used for bearing fuses ejected by the ejection head 108b layer by layer, the second transmission motor 106a is started, the clockwise or counterclockwise rotation of the second transmission motor 106a can drive the threaded rod 106b to rotate clockwise or counterclockwise, because the threaded rod 106b is in threaded fit with the threaded hole 105a, the sliding block 105 moves up or down according to the clockwise or counterclockwise rotation of the threaded rod 106b, the up-and-down movement of the sliding block 105 drives the up-and-down movement of the melt injection module 108, the third rotating motor 109a is started, the third rotating motor 109a drives the second gear 109a-1 to rotate clockwise or counterclockwise, the second gear 109a-1 drives the second chain 109c to move clockwise or counterclockwise, and because the two ends of the second chain 109c are fixed on the moving frame 108a, the moving frame 108a moves left and right under the drive of the second chain 109c, and the first driving motor 103a, the second driving motor 106a and the third rotating motor 109a are electrically connected with the PLC control system, so that the PLC control system controls the first driving motor 103a, the second driving motor 106a, and the third rotating motor 109a to move left and right according to the object to be printed, The second transmission motor 106a and the third rotation motor 109a rotate to further control the melt-blowing module 108 to perform three-dimensional movement, because the high-temperature fuse has residual temperature after being blown out by the blowing head 108b and has certain fluidity, if the fuse deposited layer by layer can not be rapidly cooled, the fuse deposited layer by layer can be slightly collapsed, the blowing module 202 is required to cool and cool, in the process of printing the object, as the printed object is stacked layer by layer and becomes higher, the melt-blowing module 108 moves up slowly under the control of the second transmission motor 106a, the melt-blowing module 108 drives the second limit frame 201c to move up in the process of moving up, because the first sliding plate 201d is inserted in the second limit frame 201c in a sliding manner, the first sliding plate 201d drives the second sliding plate 201f to move up through the connecting plate 201g, because the second sliding plate 201f is inserted in the third limit frame 201e in a sliding manner, the second sliding plate 201f drives the rack plate 201b to move upwards, when the melt-blowing module 108 moves forwards, backwards, leftwards and rightwards under the first drive motor 103a and the third rotary motor 109a, the first sliding plate 201d does not affect the vertical position of the rack plate 201b because the first sliding plate 201d is slidably inserted into the second limit frame 201c, the second sliding plate 201f does not affect the vertical position of the rack plate 201b because the second sliding plate 201f is slidably inserted into the third limit frame 201e, the rotating gear 201j is engaged with the rack plate 201b, the rotating gear 201j rotates anticlockwise when the rack plate 201b is driven to move upwards, the rotating gear 201j is engaged with the gear 201k, so the gear 201k rotates clockwise, the blowing module 202 blows air against the printed matter to cool down when the printing is started, when the rack plate 201b is driven to move upwards, printed objects are higher and higher, and the radian formed by the teeth of the gear 201k is 80 degrees, so that the angle of the second rotating shaft 201i driven by the gear 201k is not more than 80 degrees, and when the rack plate 201b moves upwards all the time, the angle of the second rotating shaft 201i is maintained at 80 degrees all the time, and at the moment, the air blowing module 202 also maintains the direction of 80 degrees all the time and blows air upwards obliquely towards the objects to cool.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. A fused deposition 3D printing device for preparing functional gradient composite material, characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the transmission mechanism (100) comprises a support frame (101), a moving plate (102) matched with the support frame (101), a first transmission assembly (103) matched with the moving plate (102) in a pulling mode, first sliding rods (104) erected on two sides of the support frame (101), sliding blocks (105) respectively sleeved on the rod bodies of the two first sliding rods (104) in a sliding mode, a second transmission assembly (106) arranged at the top ends of the two first sliding rods (104) and matched with the sliding blocks (105), a first connecting rod (107) arranged between the two sliding blocks (105), a melting injection module (108) sleeved on the first connecting rod (107) in a sliding mode, and a third transmission assembly (109) arranged on one side of the sliding blocks (105) and matched with the melting injection module (108) in a pulling mode, wherein the melting injection module (108) comprises a moving frame (108a) sleeved on the first connecting rod (107) in a sliding mode, A spray head (108b) fixed on the movable frame (108a), and a hot melt piece (108c) fixed on the movable frame (108 a); and the number of the first and second groups,
the heat dissipation mechanism (200) comprises an angle adjusting component (201) matched with the moving plate (102) and a blowing module (202) matched with the angle adjusting component (201).
2. The fused deposition 3D printing device for preparing a functionally graded composite material according to claim 1, wherein: the first transmission assembly (103) comprises a first transmission motor (103a) arranged on the front side of the support frame (101), a first pulley (103b) and a second pulley (103c) arranged on the front side and the rear side of the support frame (101), the output end of the first transmission motor (103a) is in transmission connection with a first gear (103a-1), a first chain (103d) is sleeved between the first gear (103a-1) and the first pulley (103b) and the second pulley (103c), second sliding rods (101a) are symmetrically arranged on the front side and the rear side of the support frame (101), the bottom end of the moving plate (102) is in sliding sleeve connection with the second sliding rods (101a), and two ends of the first chain (103d) are fixed to the top end of the moving plate (102) respectively.
3. The fused deposition 3D printing device for preparing a functionally graded composite material according to claim 2, wherein: four corners at the top end of the moving plate (102) are connected with a supporting plate (102a) through upright posts.
4. The fused deposition 3D printing device for preparing a functionally graded composite material according to claim 3, wherein: the top ends of the two first sliding rods (104) are respectively fixed with a second connecting rod (104b) through a connecting plate (104a), the second transmission assembly (106) comprises a second transmission motor (106a) arranged at the top end of the connecting plate (104a) and a threaded rod (106b) penetrating through the connecting plate (104a) and extending downwards, and the threaded rod (106b) is in transmission connection with the output end of the second transmission motor (106 a).
5. The fused deposition 3D printing device for preparing a functionally graded composite material according to claim 4, wherein: the sliding block (105) and the threaded rod (106b) are provided with threaded holes (105a) in the corresponding positions, and the threaded rod (106b) is in threaded fit with the threaded holes (105 a).
6. The fused deposition 3D printing device for preparing a functionally graded composite material according to claim 5, wherein: third transmission assembly (109) including set up in third rotation motor (109a) of sliding block (105) one side, and set up in third pulley (109b) of sliding block (105) one side, the output and the transmission of second gear (109a-1) of third rotation motor (109a) are connected, second gear (109a-1) with the cover is equipped with second chain (109c) between third pulley (109b), the both ends of second chain (109c) are fixed in remove on the frame (108 a).
7. The fused deposition 3D printing device for preparing a functionally graded composite material according to claim 6, wherein: the angle adjusting assembly (201) comprises a first limiting frame (201a) arranged on the left side and the right side of the top end of the supporting plate (102a), a rack plate (201b) inserted in the first limiting frame (201a), a second limiting frame (201c) arranged on one side of the moving frame (108a), two first sliding plates (201d) inserted in the second limiting frame (201c) in a sliding mode, a third limiting frame (201e) arranged on the left side and the right side of the back face of the rack plate (201b), a second sliding plate (201f) inserted in the third limiting frame (201e) in a sliding mode, and a connecting plate (201g) connecting the second sliding plate (201f) and the first sliding plate (201 d).
8. The fused deposition 3D printing device for preparing a functionally graded composite material according to claim 7, wherein: the first limiting frame (201a) comprises two first straight plates (201a-1) which are symmetrically arranged, a second straight plate (201a-2) which is connected with the two first straight plates (201a-1), and two limiting blocks (201a-3) which are symmetrically arranged on the two first straight plates (201a-1), wherein the second limiting frame (201c) is provided with two first through holes (201c-1) which are parallel to each other, the two first sliding plates (201d) are respectively inserted into the two first through holes (201c-1) in a sliding mode, the third limiting frame (201e) is provided with a second through hole (201e-1), and the second through hole (201e-1) is internally inserted with a second sliding plate (201f) in a sliding mode.
9. The fused deposition 3D printing device for preparing a functionally graded composite material according to claim 8, wherein: angle adjusting part (201) still including rotate set up in first axis of rotation (201h) and second axis of rotation (201i) between two first straight boards (201a-1), first axis of rotation (201h) middle part is provided with rotating gear (201j), rotating gear (201j) with rack plate (201b) meshes mutually, second axis of rotation (201i) middle part is provided with out tooth gear (201k), lack tooth gear (201k) with rotating gear (201j) meshes mutually, the radian that the tooth of lacking tooth gear (201k) formed is 80 degrees.
10. The fused deposition 3D printing device for preparing a functionally graded composite material according to claim 9, wherein: the blowing module (202) comprises supporting blocks (202a) arranged on two sides of the bottom end of the second rotating shaft (201i) and a servo motor (202b) arranged at the top end of the supporting blocks (202a), the output end of the servo motor (202b) is in transmission connection with an output rotating shaft (202c), and rotating blades (202d) are arranged on the output rotating shaft (202 c).
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