CN110901051B - Continuous fiber composite material 3D printer head and universal laminating device thereof - Google Patents
Continuous fiber composite material 3D printer head and universal laminating device thereof Download PDFInfo
- Publication number
- CN110901051B CN110901051B CN201911006325.XA CN201911006325A CN110901051B CN 110901051 B CN110901051 B CN 110901051B CN 201911006325 A CN201911006325 A CN 201911006325A CN 110901051 B CN110901051 B CN 110901051B
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- continuous fiber
- fiber composite
- compression roller
- ball bearing
- nozzle
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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
- 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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
Abstract
A continuous fiber composite material 3D printer head and a universal laminating device thereof are composed of a continuous fiber composite material cladding extrusion part and a universal laminating part. The cladding extrusion part comprises a machine head shell, a diversion mold core, a throat pipe, a mouth mold, a nozzle and the like. The nose shell, the flow guide mold core and the mouth mold form an annular channel for resin to flow. And the continuous fiber led out from the throat is annularly cladded by resin at a die, and finally, a continuous fiber composite material is formed and extruded from a nozzle. The universal laminating part consists of a positioning ring, a deep groove ball bearing, a thrust ball bearing, a rotating body, a press roller and the like, is assembled on the die cylinder and can rotate 360 degrees. The continuous fiber composite is deposited onto a forming plate and may be compacted by a compression roller behind the nozzle. When the printing direction is changed, the direction of the friction force applied to the compression roller is always in the same straight line with the movement direction of the spray head, so that the compression roller mechanism can automatically rotate around the orifice die column body along with the printing direction, and the compression roller mechanism is always behind the spray nozzle to achieve the universal compaction effect.
Description
Technical Field
The invention relates to a 3D printer head and a universal laminating device thereof, in particular to a continuous fiber reinforced 3D printer head and a universal laminating device capable of rotating randomly.
Background
The existing continuous fiber composite material 3D printer technology is mainly to open a hole on the side surface of a flow channel of a common FDM 3D printer, feed continuous fibers from the side surface to enable the continuous fibers to be compounded into resin, and finally extrude the resin through a nozzle. Firstly, the material form of the common FDM 3D printer is mainly wire, which limits the application of various thermoplastic and thermosetting resins in the continuous fiber 3D printing technology. Secondly, the mode of continuous fiber side feeding makes it take a certain angle when carrying, and this has increased the fibre because of the great possibility of breaking of frictional force.
When the continuous fiber composite material extrusion filament is used for filling a right-angle or circular-arc path, due to the fact that initial bonding strength between resins and between the resins and the base plate is low, the nozzle is prone to dragging the deposited continuous fiber composite material, and therefore corners cannot be accurately formed or even printing fails, and therefore the compacting device is extremely important in continuous fiber composite material 3D printing equipment. The arrangement of the compaction device can not only fix the fiber position, but also improve the interlayer strength of the printed product. The related scholars can solve the above problems to some extent by fixing a pressing roller at one side of the nozzle, but the pressing roller is fixed in position and can only play a role of compaction when the nozzle is filled in a specific direction, and the compaction cannot be realized after the printing direction is changed. In addition, the scholars propose to control the rotation direction of the compression roller in an electric driving mode, which not only increases the difficulty and cost of a control part, but also increases the complexity of the structure.
Disclosure of Invention
Aiming at the defects of the continuous fiber composite material 3D printing technology and the laminating device, the invention provides the continuous fiber composite material 3D printer head and the universal laminating device thereof, which can reduce the resistance of continuous fibers in the conveying process and increase the types of resin for continuous fiber 3D printing, and the universal laminating device can automatically rotate along with the change of the movement direction of a nozzle so as to be always kept behind the nozzle, thereby playing the role of universal laminating. The invention mainly comprises a continuous fiber composite cladding extrusion part and a universal laminating part. The continuous fiber composite cladding extrusion part consists of an extruder connecting flange, a machine head shell, a flow guide mold core, a throat pipe, a neck mold and a nozzle. The universal laminating part consists of an upper positioning ring, an upper positioning ring fastening pin, a lower positioning ring fastening pin, a deep groove ball bearing, a thrust ball bearing, a rotating body, a compression roller shaft core, a compression roller bearing and a compression roller. The universal laminating part is integrally assembled on the mouth mold cylinder of the fiber composite material wrapping extrusion part through a bearing and a positioning ring, and can rotate 360 degrees along the mouth mold cylinder, so that the universal compaction function in the printing process is realized.
The invention relates to a continuous fiber composite material 3D printer head and a universal laminating device thereof.A head shell is fixed on an extruder or other equipment for plasticizing and conveying resin through an extruder connecting flange, and is provided with a through hole for assembling a heating rod. The heating rod can heat the whole machine head, so that the fluidity of the resin is ensured. The flow guide mold core is fixed inside the machine head shell through threads. The flow guide mold core is internally provided with a through hole for assembling a throat, and the throat can be made of polytetrafluoroethylene or other high-temperature-resistant materials with smooth surfaces. The continuous fiber enters the flow channel of the machine head through the throat pipe, so that the fiber can be conveyed along a straight line and the resistance in the conveying process is reduced. The mouth mold is assembled below the head shell through threaded connection. The head shell, the diversion mold core and the neck mold form a conical annular channel so as to realize annular cladding of the resin on the continuous fibers.
According to the continuous fiber composite material 3D printer head and the universal laminating device thereof, the nozzle is assembled below the neck mold through threaded connection, the diameter of the outlet of the neck mold and the diameter specification of the nozzle can be adjusted and replaced according to the use requirement, and the continuous fibers with different sizes and specifications can be used for printing products with different sizes.
According to the continuous fiber composite material 3D printer head and the universal laminating device thereof, the upper positioning ring and the lower positioning ring are respectively fixed on the die cylinder body through the upper positioning ring tack pin and the lower positioning ring tack pin, and the two positioning rings can move in the axial direction by screwing the positioning ring tack pins, so that the laminating device can move in the z direction, and the effect of compacting a printing entity by the laminating device is further realized.
The invention relates to a continuous fiber composite material 3D printer head and a universal laminating device thereof. The lower end surface of the deep groove ball bearing is matched with the thrust ball bearing, the upper end surface of the deep groove ball bearing is matched with the upper positioning ring to realize axial positioning, the inner ring surface of the deep groove ball bearing is matched with the neck ring cylinder, and the outer ring surface of the deep groove ball bearing is matched with the rotating body.
The invention relates to a continuous fiber composite material 3D printer head and a universal laminating device thereof. The inner ring surface of the rotating body is matched with the outer ring surface of the deep groove ball bearing and is fixed on the outer ring surface of the bearing through the clinch pin, and the rotating body and the outer ring surface of the deep groove ball bearing rotate around the die cylinder, and axial positioning is achieved, so that axial position movement of the rotating body caused by the thrust of the pressing roller is prevented. The lower ring surface of the rotating body is matched with the upper end surface of the thrust ball bearing. The rotating body sheet metal structure comprises two positioning holes for assembling the compression roller shaft core.
The invention relates to a continuous fiber composite material 3D printer head and a universal laminating device thereof. The compression roller shaft core penetrates through the compression roller and the compression roller bearing and is assembled on the positioning hole of the rotating body metal plate, and rotation of the compression roller in the compaction process is achieved.
The technical scheme of the continuous fiber composite material 3D printer head and the universal laminating device thereof is as follows: the nose shell, the flow guide mold core and the mouth mold form an annular channel for resin to flow. And the continuous fiber led out from the throat is annularly cladded by resin at a die, and finally, a continuous fiber composite material is formed and extruded from a nozzle. The continuous fiber composite extruded filaments are deposited onto a forming plate and may be compacted by a press roll behind the nozzle. When the printing direction is changed, the direction of the friction force applied to the compression roller is always kept in the same straight line with the movement direction of the nozzle, so that the compression roller mechanism can automatically rotate around the die cylinder along with the printing direction, and the compression roller mechanism is always behind the nozzle to achieve the universal compaction effect.
Drawings
Fig. 1 is an overall configuration diagram of a continuous fiber composite 3D printer head and a universal laminating apparatus thereof.
Fig. 2 is an overall cross-sectional view of a continuous fiber composite 3D printer head and its gimbaled laminating apparatus.
FIG. 3 is a cross-sectional view of a gimbaled laminator.
Fig. 4 is an exploded schematic view of a continuous fiber composite 3D printer head and its gimbaled laminating apparatus.
The reference numbers shown in the figure are 1-diversion mold core, 2-throat pipe, 3-head shell, 4-extruder connecting flange, 5-die, 6-universal laminating device, 6-1-upper positioning ring, 6-2-upper positioning ring fastening pin, 6-3-deep groove ball bearing, 6-4-rotating body fastening pin, 6-5-rotating body, 6-thrust ball bearing, 6-7-lower positioning ring, 6-8-lower positioning ring fastening pin, 6-9-compression roller shaft core, 6-10-compression roller bearing, 6-11-compression roller, 7-nozzle, 8-continuous fiber and 9-resin.
Detailed Description
The invention provides a continuous fiber composite material 3D printer head and a universal laminating device thereof, which can reduce the resistance of continuous fibers 8 in the conveying process and increase the types of resins for continuous fiber 3D printing, and a universal laminating device 6 of the printer head can automatically rotate along with the change of the movement direction of a nozzle 7 so as to be always kept behind the nozzle 7, thereby playing the role of universal laminating. The invention mainly comprises a continuous fiber composite cladding extrusion part and a universal laminating part. The continuous fiber composite cladding extrusion part comprises an extruder connecting flange 4, a machine head shell 3, a flow guide mold core 1, a throat pipe 2, a mouth mold 5 and a nozzle 7. The universal laminating part 6 consists of an upper positioning ring 6-1, an upper positioning ring fastening pin 6-2, a lower positioning ring 6-7, a lower positioning ring fastening pin 6-8, a deep groove ball bearing 6-3, a thrust ball bearing 6-6, a rotating body 6-5, a press roller 6-11, a shaft core 6-9, a press roller 6-11, a bearing 6-10 and a press roller 6-11. The universal laminating part 6 is integrally assembled on a mouth mold 5 cylinder of the fiber composite material wrapping extrusion part through a bearing and a positioning ring, and can rotate 360 degrees along the mouth mold 5 cylinder, so that the universal compaction function in the printing process is realized.
The invention relates to a continuous fiber composite material 3D printer head and a universal laminating device thereof.A head shell 3 is fixed on an extruder or other equipment for plasticizing and conveying resin 9 through an extruder connecting flange 4, and the head shell 3 is provided with a through hole capable of being assembled with a heating rod. The heating rod can heat the whole machine head, so that the fluidity of the resin is ensured. The flow guide mold core 1 is fixed inside the machine head shell 3 through threads. The flow guide mold core 1 is internally provided with a through hole for assembling the throat pipe 2. The continuous fiber 8 enters the flow channel of the machine head through the throat 2, so that the fiber can be conveyed along a straight line and the resistance in the conveying process is reduced. The mouthpiece 5 is fitted below the head housing 3 by means of a screw connection. The nose shell 3, the diversion mold core 1 and the mouth mold 5 form a conical annular channel to realize annular cladding of the resin 9 on the continuous fiber 8.
According to the continuous fiber composite material 3D printer head and the universal laminating device thereof, the nozzle 7 is assembled below the neck mold 5 through threaded connection, and the diameter of the outlet of the neck mold 5 and the diameter specification of the nozzle 7 can be adjusted and replaced according to the use requirement, so that the continuous fibers 8 with different sizes and specifications can be used for printing products with different sizes.
The invention relates to a continuous fiber composite material 3D printer head and a universal laminating device thereof.A top positioning ring 6-1 and a bottom positioning ring 6-7 are respectively fixed on a cylinder of a mouth mold 5 through a top positioning ring fastening pin 6-2 and a bottom positioning ring fastening pin 6-8, and the two positioning rings can move in the axial direction by screwing the positioning ring fastening pins, so that the laminating device 6 can move in the z direction, and the laminating device 6 can compact a printing entity.
The invention relates to a continuous fiber composite material 3D printer head and a universal laminating device thereof.A lower end face of a thrust ball bearing 6-6 is matched with a lower positioning ring 6-7, an upper end face of the thrust ball bearing is matched with a deep groove ball bearing 6-3 and a rotating body 6-5, and an inner ring of the thrust ball bearing is matched with a cylinder of a mouth mold 5. The lower end face of the deep groove ball bearing 6-3 is matched with the thrust ball bearing 6-6, the upper end face of the deep groove ball bearing is matched with the upper positioning ring 6-1 to achieve axial positioning, the inner ring face of the deep groove ball bearing is matched with the cylinder of the mouth mold 5, and the outer ring face of the deep groove ball bearing is matched with the rotating body 6-5.
The invention relates to a continuous fiber composite material 3D printer head and a universal laminating device thereof.A rotating body 6-5 is of an annular structure with a step groove surface, and a sheet metal structure which can be assembled with a press roller 6-11 is arranged at one side of the rotating body. The inner ring surface of the rotating body 6-5 is matched with the outer ring surface of the deep groove ball bearing 6-3 and is fixed on the outer ring surface of the bearing through a tacking pin, and the positions of the rotating body 6-5 and the outer ring surface of the deep groove ball bearing 6-3 are relatively fixed, so that the rotating body 6-5 and the outer ring surface of the deep groove ball bearing 6-3 rotate around a cylinder of the mouth mold 5 on one hand, and axial positioning is realized on the other hand, and the axial position movement of the rotating body 6-5 caused by the thrust of the pressing roller 6-11 is prevented. The lower ring surface of the rotating body 6-5 is matched with the upper end surface of the thrust ball bearing 6-6. The rotating body 6-5 sheet metal structure comprises two positioning holes for assembling the press roller 6-11 shaft core 6-9.
The invention relates to a continuous fiber composite material 3D printer head and a universal laminating device thereof.A sink groove is arranged on two end faces of a compression roller 6-11 and used for assembling a compression roller bearing 6-10. The press roll shaft core 6-9 penetrates through the press roll 6-11 and the press roll bearing 6-10 and is assembled on the positioning hole of the metal plate of the rotating body 6-5, so that the press roll 6-11 rotates in the compaction process.
The technical scheme of the continuous fiber composite material 3D printer head and the universal laminating device thereof is as follows: the nose shell 3, the guide die core 1 and the die 5 form an annular channel for the resin 9 to flow. The continuous fiber 8 led out from the throat 2 is annularly cladded by resin 9 at a die 5, and finally a continuous fiber composite material is formed and extruded from a nozzle 7. The continuous fiber composite extruded filaments are deposited onto a forming plate and may be compacted by rolls 6-11 behind the nozzle 7. When the printing direction is changed, the direction of the friction force borne by the pressing rollers 6-11 is always kept in the same straight line with the movement direction of the nozzle 7, so that the pressing roller mechanism can automatically rotate around the cylinder of the mouth mold 5 along with the printing direction, and the pressing roller mechanism is always behind the nozzle 7, thereby achieving the universal compaction effect.
Claims (4)
1. The utility model provides a continuous fibers compound material 3D printer head and universal laminating device thereof which characterized in that: the printer head consists of a continuous fiber composite material cladding extrusion part and a universal laminating part; the continuous fiber composite cladding extrusion part consists of an extruder connecting flange, a machine head shell, a flow guide mold core, a throat pipe, a neck mold and a nozzle; the universal laminating part consists of an upper positioning ring, an upper positioning ring fastening pin, a lower positioning ring fastening pin, a deep groove ball bearing, a thrust ball bearing, a rotating body, a compression roller shaft core, a compression roller bearing and a compression roller; the upper positioning ring and the lower positioning ring are respectively fixed on the die cylinder body through an upper positioning ring tacking pin and a lower positioning ring tacking pin, and the two positioning rings can move in the axial direction through screwing the positioning ring tacking pins; the lower end surface of the thrust ball bearing is matched with the lower positioning ring, the upper end surface of the thrust ball bearing is matched with the deep groove ball bearing and the rotating body, and the inner ring is matched with the die cylinder; the lower end surface of the deep groove ball bearing is matched with the thrust ball bearing, the upper end surface of the deep groove ball bearing is matched with the upper positioning ring, the inner ring surface of the deep groove ball bearing is matched with the mouth mold column body, and the outer ring surface of the deep groove ball bearing is matched with the rotating body; the rotating body is of an annular structure with a step groove surface, a metal plate structure capable of being assembled with a press roller is arranged on one side of the rotating body, the inner ring surface of the rotating body is matched with the outer ring surface of the deep groove ball bearing and is fixed on the outer ring surface of the bearing through a clinch pin, the positions of the rotating body and the outer ring surface are relatively fixed, and the lower ring surface of the rotating body is matched with the upper end surface of the thrust ball bearing; the rotating body sheet metal structure comprises two positioning holes for assembling the compression roller shaft core; the two end faces of the compression roller are provided with sunk grooves for assembling a compression roller bearing, and a compression roller shaft core penetrates through the compression roller and the compression roller bearing and is assembled on a positioning hole of a rotating body metal plate; the universal laminating part is integrally assembled on the mouth mold cylinder of the fiber composite material wrapping extrusion part through a bearing and a positioning ring and can rotate 360 degrees along the mouth mold cylinder.
2. The continuous fiber composite 3D printer head and the universal laminating device thereof according to claim 1, wherein: the machine head shell is fixed on an extruder or other equipment for plasticizing and conveying resin through an extruder connecting flange, and a through hole capable of being assembled with a heating rod is formed in the machine head shell; the flow guide mold core is fixed inside the machine head shell through threads; a through hole is formed in the flow guide mold core and used for assembling the throat pipe; the continuous fiber enters a machine head flow passage through the throat pipe; the neck ring mold is assembled below the head shell through threaded connection; the nose shell, the flow guide mold core and the neck mold form a conical annular channel.
3. The continuous fiber composite 3D printer head and the universal laminating device thereof according to claim 1, wherein: the nozzle is assembled below the neck ring mold through threaded connection, and the diameter of the outlet of the neck ring mold and the diameter specification of the nozzle can be adjusted and replaced according to the use requirement.
4. The continuous fiber composite 3D printer head and the universal laminating device thereof according to claim 1, wherein: the machine head shell, the flow guide mold core and the mouth mold form an annular channel for resin to flow; the continuous fiber led out from the throat is annularly cladded by resin at a neck mold, and finally a continuous fiber composite material is formed and extruded from a nozzle; depositing the continuous fiber composite extruded filaments on a forming flat plate, and compacting by a pressing roller behind a nozzle; when the printing direction is changed, the direction of the friction force applied to the compression roller is always kept in the same straight line with the movement direction of the nozzle, so that the compression roller mechanism can automatically rotate around the die cylinder along with the printing direction, and the compression roller mechanism is always behind the nozzle to achieve the universal compaction effect.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911006325.XA CN110901051B (en) | 2019-10-22 | 2019-10-22 | Continuous fiber composite material 3D printer head and universal laminating device thereof |
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| CN201911006325.XA CN110901051B (en) | 2019-10-22 | 2019-10-22 | Continuous fiber composite material 3D printer head and universal laminating device thereof |
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| CN110901051A CN110901051A (en) | 2020-03-24 |
| CN110901051B true CN110901051B (en) | 2022-03-15 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045298A (en) * | 2020-09-15 | 2020-12-08 | 广东省科学院中乌焊接研究所 | Friction material increase device and method |
| CN113977935A (en) * | 2021-11-15 | 2022-01-28 | 温州大学 | Hot rolling device suitable for FDM type 3D prints |
| CN114474709B (en) * | 2021-12-28 | 2023-03-10 | 南京航空航天大学 | Printing head for additive manufacturing of fiber reinforced composite material and printing method |
| CN117021574B (en) * | 2023-10-08 | 2024-01-09 | 哈尔滨理工大学 | Magnetic-guided composite material controllable long-arc line path printing system and method |
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