CN114393822A - Continuous fiber 3D printer capable of printing and forming on inner wall of rotary cylinder - Google Patents
Continuous fiber 3D printer capable of printing and forming on inner wall of rotary cylinder Download PDFInfo
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- CN114393822A CN114393822A CN202210033727.4A CN202210033727A CN114393822A CN 114393822 A CN114393822 A CN 114393822A CN 202210033727 A CN202210033727 A CN 202210033727A CN 114393822 A CN114393822 A CN 114393822A
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- 238000007639 printing Methods 0.000 title claims abstract description 91
- 239000000835 fiber Substances 0.000 title claims abstract description 42
- 230000033001 locomotion Effects 0.000 claims abstract description 57
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 19
- 238000010146 3D printing Methods 0.000 claims abstract description 15
- 230000003287 optical effect Effects 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 22
- 238000010073 coating (rubber) Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 229920002530 polyetherether ketone Polymers 0.000 claims description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 239000004677 Nylon Substances 0.000 claims description 2
- 229920006231 aramid fiber Polymers 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 239000004626 polylactic acid Substances 0.000 claims description 2
- 229920005992 thermoplastic resin Polymers 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 239000010410 layer Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000003754 machining Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
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- 230000004323 axial length Effects 0.000 description 1
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- 230000003993 interaction Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- 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
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
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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
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
-
- 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
- B29C64/245—Platforms or substrates
-
- 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
- B33Y10/00—Processes of additive manufacturing
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
A3D printer for printing and forming continuous fibers on the inner wall of a rotary cylinder comprises a rack, wherein the front end of the rack is connected with a YZ linear motion mechanism, a probing printing arm rod is connected onto the YZ linear motion mechanism, an extruding wire feeding mechanism and a printing head are connected onto the probing printing arm rod, and resin wires and the continuous fibers are fed into the printing head through the extruding wire feeding mechanism to be melted and blended and then synchronously extruded; the rear end of the frame is connected with an XARotary motion mechanism, XAThe rotary motion mechanism is coaxially connected with a cylindrical printing substrate in XARotating movementThe mechanism is coaxially driven to realize rotary motion, and a cylindrical outer wall supporting module is connected below the cylindrical printing substrate; in YZ linear motion mechanism and XAUnder the cooperative motion of the rotary motion mechanism, the printing head extends into the inner wall of the rotary cylindrical printing substrate to perform continuous fiber 3D printing, so that the integrated rapid forming of the cylindrical structural part is realized; the invention reduces the manufacturing cost of the cylindrical structural member and improves the manufacturing flexibility.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a continuous fiber 3D printer capable of printing and forming on the inner wall of a rotary cylinder.
Background
When a common XYZ three-degree-of-freedom FDM 3D printer is used for forming a cylindrical structure part, the cylindrical structure part is usually sliced and layered along the axial direction of the cylindrical structure part, then the cylindrical structure part is finally printed by layer-by-layer superposition, and the cylindrical structure part cannot bear larger axial load due to lower interlayer bonding strength; and when the outline of the cylinder is printed, the path is not a circular arc in a strict sense, but is formed by approximating a plurality of short straight lines, so that the precision on the outline is low, and the mechanical property and the shape precision of the axial pressure of the 3D printing cylindrical structural part are difficult to meet the use requirement.
In order to solve the technical defects, people are inspired by a fiber winding process, and a 3D printing method for rotary printing along the outer wall of a cylindrical die is also provided, one degree of freedom of a common XYZ three-degree-of-freedom FDM 3D printer is changed into a rotary degree of freedom for rotary 3D printing, so that various performances of a 3D printing cylindrical structural part are improved, but only a cylindrical skin and an outer wall characteristic structure of the cylindrical skin can be formed. In the practical application process, the characteristic structures of the cylindrical structural part are often distributed on the inner wall of the cylindrical structural part, such as force-bearing grid ribs or instrument and meter supports, and the cylindrical structural part with the characteristic structures on the inner wall does not have a corresponding 3D printing solution.
In the traditional machining process, the problem of difficulty in machining the inner hole is usually solved by adopting an inner hole turning mode, namely, a turning tool stretches into a rotary cylindrical part to perform transverse and longitudinal feeding motions so as to realize machining and forming of a characteristic structure of the inner wall of a cylinder, for example, inner hole reaming and internal thread machining can be realized in the mode, the mode is a common mode for machining the characteristic structure of the inner wall of the cylindrical part in material reduction manufacturing, a 3D printing and forming method for the characteristic of the inner wall of the cylindrical part does not exist in the field of material increase manufacturing, and further application of 3D printing of the cylindrical structural part is limited.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a continuous fiber 3D printer capable of printing and forming on the inner wall of a rotary cylinder, so as to realize integrated rapid forming of a cylindrical structural member, effectively reduce the manufacturing cost of the cylindrical structural member and improve the manufacturing flexibility.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
A3D printer for continuous fibers capable of printing and forming on the inner wall of a rotary cylinder comprises a rack 1, wherein the front end of the rack 1 is connected with a YZ linear motion mechanism 8, the YZ linear motion mechanism 8 is connected with a probing printing arm rod 4, the probing printing arm rod 4 is connected with an extruding wire feeding mechanism 5 and a printing head 3, a resin wire 6 and continuous fibers 7 are fed into the printing head 3 through the extruding wire feeding mechanism 5 to be melted and blended and then synchronously extruded, and the printing head 3 realizes linear motion in the Y direction and the Z direction together with the YZ linear motion mechanism 8;
the rear end of the frame 1 is connected with an XASlewing mechanism 12, XAThe rotary motion mechanism 12 is coaxially connected to the cylindrical printing substrate 2, the cylindrical printing substrate 2 being at XAThe rotary motion is realized under the coaxial drive of the rotary motion mechanism 12, a cylinder outer wall supporting module 9 is connected below the cylindrical printing substrate 2, and the cylinder outer wall supporting module 9 is connected on the rack 1;
in YZ linear motion mechanism 8 and XAUnder the cooperative motion of the rotary motion mechanism 12, the printing head 3 extends into the inner wall of the rotary cylindrical printing substrate 2 to perform continuous fiber 3D printing, so that the integrated rapid forming of the cylindrical structural part is realized.
YZ linear motion mechanism 8 include two Y to first ball slip table module 81, second ball slip table module 85 and a Z to third ball slip table module 84, first ball slip table module 81, second ball slip table module 85 pass through first module switching fixing base 82, second module switching fixing base 83 links to each other with third ball slip table module 84, be connected with on the third ball slip table module 84 and visit formula and print armed lever 4.
The extrusion wire feeding mechanism 5 consists of a fiber feeding pipe 51, a resin wire feeding pipe 52 and an extruder 53, the extruder 53 actively feeds the resin wire 6 into the printing head 3 through the resin wire feeding pipe 52, the continuous fiber 7 is fed into the printing head 3 through the fiber feeding pipe 51 through the passive wire feeding, and the resin wire 6 and the continuous fiber 7 are synchronously extruded after being melted and blended in the printing head 3.
Said XAThe rotary motion mechanism 12 comprises a stepping motor 129, the stepping motor 129 is mounted on the frame 1 through a motor fixing seat 128, an output shaft of the stepping motor 129 is coaxially connected with one end of a connecting shaft 123 through a coupler 121, two ends of the connecting shaft 123 are supported through a first vertical bearing seat 122 and a second vertical bearing seat 124, the first vertical bearing seat 122 and the second vertical bearing seat 124 are mounted on the frame 1 through a first bearing seat cushion block 127 and a second bearing seat cushion block 126, the other end of the connecting shaft 123 is coaxially connected with a three-jaw chuck 125, and the three-jaw chuck 125 is clamped with the cylindrical printing substrate 2.
The cylindrical printing substrate 2 consists of an external metal cylinder 21 and an internal flexible magnetic sticker 22; metal drum 21 adopts the stainless steel material preparation, in order to guarantee that flexible magnetic sticker 22 can adsorb at metal drum 21 inner wall, the internal surface of flexible magnetic sticker 22 adopts the dull polish material, in order to guarantee to form good bonding when printing the first layer and prevent the warpage and drop, the surface of flexible magnetic sticker 22 and metal drum 21 contact is enough smooth, make flexible magnetic sticker 22 and metal drum 21 can the relative slip under the exogenic action after guaranteeing to print the completion, take out the flexible magnetic sticker 22 of wrapping up final appearance piece, peel off flexible magnetic sticker 22 along the limit line, finally realize the harmless drawing of patterns.
Drum outer wall support module 9 include the support element that two sets of symmetries set up, every support element of group is by first optical axis fixing base 91, first rubber coating bearing 92, optical axis 93, second rubber coating bearing 94 and second optical axis fixing base 95 are constituteed, the both ends of optical axis 93 are connected at first optical axis fixing base 91, on second optical axis fixing base 95, first optical axis fixing base 91, second optical axis fixing base 95 is fixed in frame 1, the cover is equipped with first rubber coating bearing 92 on the optical axis 93, second rubber coating bearing 94, first rubber coating bearing 92 and second rubber coating bearing 94 contact with the outer wall of metal drum 21, offset the gyration precision that the cantilever that leads to by metal drum 21 self is flagging in order to guarantee to print.
The printing head 3 prints and forms the cylindrical structural part along the inner wall of the rotary cylindrical printing substrate 2, slices and layers are formed along the radial direction, namely the thickness direction, of the cylindrical structural part, the axial load is distributed along the layers, and the axial compression resistance of the cylindrical structural part is exerted.
The resin wire 6 is a thermoplastic resin wire, and comprises polylactic acid (PLA), nylon (PA), polyether ether ketone (PEEK) and polyphenylene sulfide (PPS).
The continuous fiber 7 is continuous carbon fiber, continuous glass fiber or continuous aramid fiber.
The invention has the following beneficial effects:
according to the invention, the printing head is stretched into the inner wall of the rotary cylindrical printing substrate 2 to perform continuous fiber 3D printing, the cylindrical skin printing and the fine feature structure additional printing can be completed in one process, the integrated rapid forming of the cylindrical structural member is realized, the axial pressure resistance of the 3D printing cylindrical structural member can be effectively exerted, the fine feature structure with any complex shape can be formed on the inner wall of the cylindrical skin, a special customized die is not needed, the flexibility of design and manufacture is greatly improved, the manufacturing cost is reduced, the demolding difficulty is greatly reduced by adopting the flexible magnetic paster, and a new way is provided for the manufacture of the cylindrical structural member.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of a YZ linear motion mechanism according to the present invention.
FIG. 3 shows the present invention XASchematic diagram of a rotary motion mechanism.
Fig. 4 is a schematic view of a cylindrical printing substrate according to the present invention.
Fig. 5 is a schematic diagram showing comparison between layered slices of the XYZ three-degree-of-freedom FDM 3D printer of the present invention, where (a) is a layered slice of the XYZ three-degree-of-freedom FDM 3D printer, and (b) is a layered slice of the present invention.
Detailed Description
The present invention will be described with reference to the following examples and drawings.
Referring to fig. 1, a continuous fiber 3D printer capable of printing and forming on the inner wall of a rotary cylinder comprises a frame 1, wherein the front end of the frame 1 is connected with a YZ linear motion mechanism 8, the YZ linear motion mechanism 8 is connected with a probing printing arm rod 4, the probing printing arm rod 4 is connected with an extruding wire feeding mechanism 5 and a printing head 3, a resin wire 6 and a continuous fiber 7 are fed into the printing head 3 through the extruding wire feeding mechanism 5 to be melted and blended and then synchronously extruded, and the printing head 3 realizes linear motion in the Y direction and the Z direction along with the YZ linear motion mechanism 8;
the rear end of the frame 1 is connected with an XASlewing mechanism 12, XAThe rotary motion mechanism 12 is coaxially connected to the cylindrical printing substrate 2, the cylindrical printing substrate 2 being at XAThe rotary motion is realized under the coaxial drive of the rotary motion mechanism 12, if the cylindrical printing substrate 2 is taken as a reference object, the printing head 3 realizes linear motion along the tangential direction of the cylindrical printing substrate 2, a cylindrical outer wall supporting module 9 is connected below the cylindrical printing substrate 2 to counteract the cantilever droop caused by the self weight of the cylindrical printing substrate 2, and the cylindrical outer wall supporting module 9 is connected on the rack 1;
in YZ linear motion mechanism 8 and XAUnder the cooperative motion of the rotary motion mechanism 12, the printing head 3 arranged on the probing printing arm rod 4 extends into the inner wall of the rotary cylindrical printing substrate 2 to perform continuous fiber 3D printing, so that the integrated rapid forming of the cylindrical structural part is realized.
The rear end of the rack 1 is connected with an electrical control cabinet 10 for placing electronic elements such as a power supply, a control mainboard and a motor driver which support the realization of a 3D printing function; an operation control panel 11 is arranged above the electrical control cabinet 10 to facilitate human-computer interaction and adjustment and setting of printing process parameters.
Referring to fig. 2, YZ linear motion mechanism 8 include two Y to first ball slip table module 81, second ball slip table module 85 and a Z to third ball slip table module 84, first ball slip table module 81, second ball slip table module 85 is through first module switching fixing base 82, second module switching fixing base 83 links to each other with third ball slip table module 84, be connected with on the third ball slip table module 84 and visit formula printing armed lever 4, the printer head 3 that connects on the formula printing armed lever 4 of visiting can realize Y to and Z to the linear motion of two directions.
Referring to fig. 2, the extrusion wire feeding mechanism 5 is composed of a fiber feeding pipe 51, a resin wire feeding pipe 52 and an extruder 53, the extruder 53 feeds the resin wire 6 into the printing head 3 through the resin wire feeding pipe 52 by active wire feeding, the continuous fiber 7 is fed into the printing head 3 through the fiber feeding pipe 51 by passive wire feeding, and the resin wire 6 and the continuous fiber 7 are synchronously extruded after being melted and blended inside the printing head 3.
Referring to FIG. 3, said XAThe rotary motion mechanism 12 comprises a stepping motor 129, the stepping motor 129 is mounted on the frame 1 through a motor fixing seat 128, an output shaft of the stepping motor 129 is coaxially connected with one end of a connecting shaft 123 through a coupler 121, two ends of the connecting shaft 123 are supported through a first vertical bearing seat 122 and a second vertical bearing seat 124, the first vertical bearing seat 122 and the second vertical bearing seat 124 are mounted on the frame 1 through a first bearing seat cushion block 127 and a second bearing seat cushion block 126, the other end of the connecting shaft 123 is coaxially connected with a three-jaw chuck 125, the three-jaw chuck 125 is clamped with the cylindrical printing substrate 2, and the stepping motor 129 can drive the three-jaw chuck 125 to coaxially rotate.
Referring to fig. 4, the cylindrical printing substrate 2 is composed of an outer metal cylinder 21 and an inner flexible magnetic sticker 22; metal drum 21 adopts the stainless steel material preparation, in order to guarantee that flexible magnetic sticker 22 can adsorb at metal drum 21 inner wall, the internal surface of flexible magnetic sticker 22 adopts the dull polish material, in order to guarantee to form good bonding when printing the first layer and prevent the warpage and drop, the surface of flexible magnetic sticker 22 and metal drum 21 contact is enough smooth, make flexible magnetic sticker 22 and metal drum 21 can the relative slip under the exogenic action after guaranteeing to print the completion, take out the flexible magnetic sticker 22 of wrapping up final appearance piece, peel off flexible magnetic sticker 22 along the limit line, finally realize the harmless drawing of patterns.
Referring to fig. 4, the cylinder outer wall support module 9 includes two sets of supporting units symmetrically arranged, each set of supporting unit is composed of a first optical axis fixing seat 91, a first rubber-coated bearing 92, an optical axis 93, a second rubber-coated bearing 94 and a second optical axis fixing seat 95, two ends of the optical axis 93 are connected to the first optical axis fixing seat 91, the second optical axis fixing seat 95 is fixed on the frame 1, the optical axis 93 is sleeved with the first rubber-coated bearing 92 and the second rubber-coated bearing 94, and due to the influence of the axial length and the self weight of the metal cylinder 21, a certain cantilever droop can be generated to further influence the rotation precision in the printing process, the first rubber-coated bearing 92 and the second rubber-coated bearing 94 are in contact with the outer wall of the metal cylinder 21, and the cantilever droop caused by the metal cylinder 21 itself is offset to ensure the rotation precision of printing.
Referring to fig. 5, when a cylindrical structural member is formed by a common XYZ three-degree-of-freedom FDM 3D printer, the cylindrical structural member is often sliced and layered along the axial direction of the cylindrical structural member, and a large axial load cannot be borne because the interlayer bonding strength is low; the printing head 3 prints and forms the cylindrical structural part along the inner wall of the rotary cylindrical printing substrate 2, slices and layers are formed along the radial direction (namely the thickness direction) of the cylindrical structural part, and the axial load is distributed along the layers, so that the axial compression resistance of the cylindrical structural part can be effectively exerted.
The working principle of the invention is as follows: the YZ linear motion mechanism 8 drives the printing head 3 to realize linear motion in the Y direction and the Z direction through the penetration type printing arm rod 4, the resin wire 6 and the continuous fiber 7 are sent into the printing head 3 through the extrusion wire feeding mechanism 5 to be melted and blended and then synchronously extruded, and the cylindrical printing substrate 2 is arranged in the X directionAThe rotary motion is realized under the coaxial drive of the rotary motion mechanism 12, and the rotation is realized between the YZ linear motion mechanism 8 and the XAUnder the concerted movement of rotary motion mechanism 12, beat printer head 3 and stretch into the 2 inner walls of gyration tube-shape printing basement and carry out continuous fibers 3D and print, can realize the integration rapid prototyping of tube-shape structure, exert 3D and print the anti axle load performance of tube-shape structure to effectively reduce manufacturing cost, promote the flexibility of design and manufacturing.
Claims (9)
1. The utility model provides a can print continuous fibers 3D printer of shaping at gyration drum inner wall, includes frame (1), its characterized in that: the front end of the rack (1) is connected with a YZ linear motion mechanism (8), the YZ linear motion mechanism (8) is connected with a probing printing arm rod (4), the probing printing arm rod (4) is connected with an extruding wire feeding mechanism (5) and a printing head (3), a resin wire (6) and continuous fibers (7) are fed into the printing head (3) through the extruding wire feeding mechanism (5) to be melted and blended and then synchronously extruded, and the printing head (3) realizes linear motion in the Y direction and the Z direction along with the YZ linear motion mechanism (8);
the rear end of the frame (1) is connected with an XAA rotary motion mechanism (12), XAThe rotary motion mechanism (12) is coaxially connected with the cylindrical printing substrate (2), and the cylindrical printing substrate (2) is arranged at XAThe rotary motion is realized under the coaxial drive of the rotary motion mechanism (12), a cylinder outer wall supporting module (9) is connected below the cylindrical printing substrate (2), and the cylinder outer wall supporting module (9) is connected to the rack (1);
in YZ linear motion mechanism (8) and XAUnder the cooperative motion of the rotary motion mechanism (12), the printing head (3) extends into the inner wall of the rotary cylindrical printing substrate (2) to perform continuous fiber 3D printing, so that the integrated rapid forming of the cylindrical structural part is realized.
2. The continuous fiber 3D printer of claim 1, wherein: YZ rectilinear motion mechanism (8) include two Y to first ball slip table module (81), second ball slip table module (85) and a Z to third ball slip table module (84), first ball slip table module (81), second ball slip table module (85) are through first module switching fixing base (82), second module switching fixing base (83) link to each other with third ball slip table module (84), be connected with on third ball slip table module (84) and visit formula and print armed lever (4).
3. The continuous fiber 3D printer of claim 1, wherein: the extrusion wire feeding mechanism (5) is composed of a fiber feeding pipe (51), a resin wire feeding pipe (52) and an extruder (53), the extruder (53) feeds resin wires (6) into the printing head (3) through the resin wire feeding pipe (52) by active wire feeding, continuous fibers (7) are fed into the printing head (3) through the fiber feeding pipe (51) by passive wire feeding, and the resin wires (6) and the continuous fibers (7) are synchronously extruded after being melted and blended inside the printing head (3).
4. The continuous fiber 3D printer of claim 1, wherein: said XAThe rotary motion mechanism (12) comprises a stepping motor (129), the stepping motor (129) is installed on the rack (1) through a motor fixing seat (128), an output shaft of the stepping motor (129) is coaxially connected with one end of a connecting shaft (123) through a coupler (121), two ends of the connecting shaft (123) are supported through a first vertical bearing seat (122) and a second vertical bearing seat (124), the first vertical bearing seat (122) and the second vertical bearing seat (124) are installed on the rack (1) through a first bearing seat cushion block (127) and a second bearing seat cushion block (126), the other end of the connecting shaft (123) is coaxially connected with a three-jaw chuck (125), and the three-jaw chuck (125) is clamped with the cylindrical printing substrate (2).
5. The continuous fiber 3D printer of claim 1, wherein: the cylindrical printing substrate (2) consists of an external metal cylinder (21) and an internal flexible magnetic sticker (22); metal drum (21) adopt the preparation of stainless steel material, in order to guarantee that flexible magnetic sticker (22) can adsorb at metal drum (21) inner wall, the internal surface of flexible magnetic sticker (22) adopts the dull polish material, in order to guarantee to form good bonding when printing the first layer, the surface of flexible magnetic sticker (22) and metal drum (21) contact is enough smooth, make flexible magnetic sticker (22) and metal drum (21) can the relative slip under the exogenic action after guaranteeing to print to accomplish, take out flexible magnetic sticker (22) wrapping up final appearance piece, peel off flexible magnetic sticker (22) along the boundary, finally realize the lossless drawing of patterns.
6. The continuous fiber 3D printer of claim 5, wherein: drum outer wall support module (9) including the support element that two sets of symmetries set up, every support element of group is by first optical axis fixing base (91), first rubber coating bearing (92), optical axis (93), second rubber coating bearing (94) and second optical axis fixing base (95) are constituteed, the both ends of optical axis (93) are connected at first optical axis fixing base (91), on second optical axis fixing base (95), first optical axis fixing base (91), second optical axis fixing base (95) are fixed in frame (1), the cover is equipped with first rubber coating bearing (92) on optical axis (93), second rubber coating bearing (94), the outer wall contact of first rubber coating bearing (92) and second rubber coating bearing (94) and metal drum (21), offset the flagging cantilever that leads to by metal drum (21) self in order to guarantee the gyration precision of printing.
7. The continuous fiber 3D printer of claim 1, wherein: the printing head (3) prints and forms the cylindrical structural part along the inner wall of the rotary cylindrical printing substrate (2), slices and layers are formed along the radial direction, namely the thickness direction, of the cylindrical structural part, the axial load is distributed along the layers, and the axial compression resistance of the cylindrical structural part is exerted.
8. The continuous fiber 3D printer of claim 1, wherein: the resin wire material (6) is a thermoplastic resin wire material and comprises polylactic acid (PLA), nylon (PA), polyether ether ketone (PEEK) and polyphenylene sulfide (PPS).
9. The continuous fiber 3D printer of claim 1, wherein: the continuous fiber (7) is continuous carbon fiber, continuous glass fiber or continuous aramid fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210033727.4A CN114393822A (en) | 2022-01-12 | 2022-01-12 | Continuous fiber 3D printer capable of printing and forming on inner wall of rotary cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210033727.4A CN114393822A (en) | 2022-01-12 | 2022-01-12 | Continuous fiber 3D printer capable of printing and forming on inner wall of rotary cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN114393822A true CN114393822A (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210033727.4A Pending CN114393822A (en) | 2022-01-12 | 2022-01-12 | Continuous fiber 3D printer capable of printing and forming on inner wall of rotary cylinder |
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| CN (1) | CN114393822A (en) |
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