CN111716707A - Injection molding 3D printing hot runner system and injection molding printing method - Google Patents
Injection molding 3D printing hot runner system and injection molding printing method Download PDFInfo
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- CN111716707A CN111716707A CN202010711813.7A CN202010711813A CN111716707A CN 111716707 A CN111716707 A CN 111716707A CN 202010711813 A CN202010711813 A CN 202010711813A CN 111716707 A CN111716707 A CN 111716707A
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- 238000007639 printing Methods 0.000 title claims abstract description 50
- 238000001746 injection moulding Methods 0.000 title claims abstract description 49
- 238000010146 3D printing Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 8
- 229920003023 plastic Polymers 0.000 claims description 57
- 239000002245 particle Substances 0.000 claims description 26
- 230000015271 coagulation Effects 0.000 claims description 4
- 238000005345 coagulation Methods 0.000 claims description 4
- 230000001112 coagulating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 229920000426 Microplastic Polymers 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
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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
- B29C64/112—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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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
- 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
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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
- B29C64/295—Heating elements
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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
- 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)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an injection molding 3D printing hot runner system and an injection molding printing method, wherein the system comprises: a movable frame capable of moving along X-axis direction, Y-axis direction and Z-axis direction; the flow distribution plate is connected with the movable frame; wherein the flow distribution plate is provided with a first flow passage; a feed assembly disposed on the diverter plate and in communication with the first flow passage; the hot nozzle is arranged on the flow distribution plate; wherein the hot nozzle is provided with a second flow passage which is communicated with the first flow passage; and a printing assembly disposed on the diversion plate and in communication with the second flow passage. The invention realizes injection molding 3D printing through the hot runner system.
Description
Technical Field
The invention relates to the technical field of hot runners, in particular to an injection molding 3D printing hot runner system and an injection molding printing method.
Background
The hot runner technology is an advanced technology applied to a plastic injection mold runner system. However, hot runner systems for injection moldable 3D printing have not been available.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an injection molding 3D printing hot runner system and an injection molding printing method capable of realizing 3D printing.
The technical scheme of the invention is as follows:
an injection molding 3D printing hot runner system, the system comprising:
a movable frame capable of moving along X-axis direction, Y-axis direction and Z-axis direction;
the flow distribution plate is connected with the movable frame; wherein the flow distribution plate is provided with a first flow passage;
a feed assembly disposed on the diverter plate and in communication with the first flow passage;
the hot nozzle is arranged on the flow distribution plate; wherein the hot nozzle is provided with a second flow passage which is communicated with the first flow passage; and
and the printing assembly is arranged on the flow distribution plate and communicated with the second flow passage.
The injection molding 3D printing hot runner system further comprises a plurality of heaters, and the heaters are respectively arranged on the splitter plate and the hot nozzle.
In a further arrangement of the present invention, the feed assembly comprises:
the funnel is arranged on the upper end surface of the flow distribution plate and is communicated with the first flow channel;
the hydraulic cylinder is arranged on one side of the flow distribution plate close to the funnel; and
and the push rod is arranged on the hydraulic cylinder and is connected with the first flow channel.
According to the further arrangement of the invention, the printing assembly comprises an air cylinder and an ejector pin arranged on the air cylinder, the air cylinder is arranged on the upper end surface of the flow distribution plate, and the ejector pin penetrates through the flow distribution plate and is accommodated in the second flow passage.
According to the further arrangement of the invention, the hot nozzle comprises a nozzle head, the nozzle head is provided with a pouring gate, and the cylinder is used for opening or closing the pouring gate by controlling the thimble to stretch and retract.
In a further aspect of the invention, the mobile frame comprises:
the Z-axis lifting assembly is used for adjusting the height of the flow distribution plate in the Z-axis direction;
the Y-axis moving assembly is arranged on the Z-axis lifting assembly and used for driving the flow distribution plate to horizontally move in the Y-axis direction;
the X-axis moving assembly is arranged on the Y-axis moving assembly and is used for driving the flow distribution plate to horizontally move in the X-axis direction;
and the fine adjustment assembly is arranged on the X-axis moving assembly, is connected with the splitter plate and is used for driving the splitter plate to move up and down in the Z-axis direction.
According to the further arrangement of the invention, the Z-axis lifting assembly comprises a screw and a screw sleeve, and the screw is in threaded connection with the screw sleeve.
According to a further arrangement of the invention, the Y-axis moving assembly comprises a support plate and a first mechanical arm, the support plate is arranged on the screw, and the first mechanical arm is arranged on the support plate; the X-axis moving assembly comprises a second mechanical arm, and the second mechanical arm is arranged on the first mechanical arm; the fine adjustment assembly comprises a third mechanical arm, and the third mechanical arm is arranged on the second mechanical arm and connected with the flow distribution plate.
Based on the same inventive concept, the invention also provides a 3D printing hot runner injection molding printing method, which is applied to the injection molding 3D printing hot runner system, and the injection molding printing method comprises the following steps:
pouring plastic particles into the feeding assembly and enabling the plastic particles to be in a semi-molten state to form semi-molten plastic;
the feeding assembly feeds the semi-molten plastic into the first flow channel of the flow distribution plate to be heated so that the semi-molten plastic is completely plasticized to form molten plastic, and the molten plastic flows into the second flow channel in the hot nozzle;
driving the splitter plate by the moving frame to move the thermal nozzle to a position to be printed;
controlling the opening of the hot nozzle through the printing component to finish one-time printing;
and repeating the steps to continuously print out the molten plastic particles with the fixed size, and piling the printed molten plastic particles with the fixed size before coagulation to obtain the 3D printed product.
According to a further arrangement of the present invention, the step of continuously printing out the molten plastic particles of a fixed size and stacking the printed molten plastic particles of a fixed size before coagulation to obtain the 3D printed product further comprises:
and piling the printed molten plastic particles with fixed sizes in a layer paving mode, printing a second layer after printing the first layer, and sequentially printing the Nth layer.
The invention provides an injection molding 3D printing hot runner system and an injection molding printing method, wherein the system comprises: a movable frame capable of moving along X-axis direction, Y-axis direction and Z-axis direction; the flow distribution plate is connected with the movable frame; wherein the flow distribution plate is provided with a first flow passage; a feed assembly disposed on the diverter plate and in communication with the first flow passage; the hot nozzle is arranged on the flow distribution plate; wherein the hot nozzle is provided with a second flow passage which is communicated with the first flow passage; and a printing assembly disposed on the diversion plate and in communication with the second flow passage. The invention realizes injection molding 3D printing through the hot runner system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of an injection molding 3D printing hot runner system according to the present invention.
Fig. 2 is a schematic structural diagram of an open state of a thimble in an injection molding 3D printing hot runner system according to the present invention.
FIG. 3 is a schematic structural diagram of a closed state of an ejector pin of an injection molding 3D printing hot runner system according to the present invention.
FIG. 4 is a schematic diagram of a layer structure of plastic granules continuously printed by the injection molding 3D printing hot runner system according to the present invention.
Fig. 5 is a schematic flow chart of a 3D printing hot runner injection molding printing method.
The various symbols in the drawings: 1. a movable frame; 11. a screw; 12. a screw sleeve; 13. a support plate; 14. a first robot arm; 15. a second mechanical arm; 16. a third mechanical arm; 2. a flow distribution plate; 21. a first flow passage; 3. a feed assembly; 31. a funnel; 32. a hydraulic cylinder; 33. a push rod; 4. a hot nozzle; 41. a second flow passage; 42. a nozzle head; 43. a gate; 5. a printing assembly; 51. a cylinder; 52. a thimble; 6. a heater; 7. a work table; 8. a first layer; 9. a second layer; 10. plastic particles.
Detailed Description
The invention provides an injection molding 3D printing hot runner system and an injection molding printing method, which realize injection molding 3D printing by a hot runner technology. In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the embodiments and claims, the terms "a" and "an" can mean "one or more" unless the article is specifically limited.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a preferred embodiment of an injection molding 3D printing hot runner system.
As shown in fig. 1, the injection molding 3D printing hot runner system provided by the present invention includes a moving frame 1, a splitter plate 2, a feeding assembly 3, a hot nozzle 4, and a printing assembly 5. Specifically, the flow distribution plate 2 is connected with the movable frame 1, and the movable frame 1 can drive the flow distribution plate 2 to move along the X-axis direction, the Y-axis direction and the Z-axis direction. Wherein the flow dividing plate 2 is provided with a first flow passage 21, the feeding component 3 is arranged on the flow dividing plate 2 and communicated with the first flow passage 21, the heat nozzle 4 is arranged on the flow dividing plate 2, wherein the heat nozzle 4 is provided with a second flow passage 41, the second flow passage 41 is communicated with the first flow passage 21, and the printing component 5 is arranged on the flow dividing plate 2 and communicated with the second flow passage 41.
It can be understood that a workbench 7 is also required to be provided during printing, the thermal nozzle 4 is located above the workbench 7, and the moving frame 1 can drive the splitter plate 2 to move along the X-axis direction, the Y-axis direction and the Z-axis direction, so as to move the thermal nozzle 4 to a position to be processed above the workbench 7.
The X-axis direction, the Y-axis direction, and the Z-axis direction refer to an X-axis direction, a Y-axis direction, and a Z-axis direction in a three-dimensional coordinate system.
By the injection molding 3D printing hot runner system provided by the invention, when 3D printing is carried out, firstly, plastic particles (powder) are poured into the feeding component 3 and are in a semi-molten state to form semi-molten plastic, then the semi-molten plastic is fed into the first flow channel 21 of the flow distribution plate 2 through the feeding component 3 to be heated so as to be fully plasticized to form molten plastic, and flows into the second flow channel 41 in the hot nozzle 4, the manifold 2 is then driven by the moving frame 1 to move the thermal nozzle 4 to the position to be printed, and then the printing component 5 controls the opening of the thermal nozzle 4 to complete one-time printing, the above process is repeated to continuously print out the fused plastic granules 10 with fixed size, and the printed fixed-size molten plastic particles 10 are piled before being coagulated to obtain a 3D printed product. Referring to fig. 4, the printed molten plastic particles 10 with a fixed size are piled up in a layer-by-layer manner, the second layer 9 is printed after the first layer 8 is printed, and the nth layer is printed in sequence to obtain a 3D printed product, where N is a positive integer greater than 2. According to the invention, the hot runner system is combined with the 3D printing, so that the 3D printing is realized through the hot runner system.
Referring to fig. 2, in a further implementation manner of an embodiment, the injection molding 3D printing hot runner system further includes a plurality of heaters 6, and the heaters 6 are respectively disposed on the splitter plate 2 and the hot nozzle 4. Specifically, the heaters 6 are disposed on two sides of the flow distribution plate 2 and form a heating area, and after the semi-molten plastic is fed into the first flow channel 21 of the flow distribution plate 2 under the action of the feeding assembly 3, the semi-molten plastic is heated to be completely plasticized to form the molten plastic, wherein the heaters 6 are also disposed on two sides of the area of the flow distribution plate 2 connected to the hot nozzle 4 and one side or two sides of the second flow channel 41 of the hot nozzle 4, so as to prevent the molten plastic flowing into the second flow channel 41 of the hot nozzle 4 from being coagulated and unable to complete glue injection.
With continued reference to fig. 2, in a further embodiment of an embodiment, the feeding assembly 3 includes a hopper 31, a hydraulic cylinder 32, and a push rod 33. Specifically, the funnel 31 is disposed on the upper end surface of the flow distribution plate 2 and is communicated with the first flow passage 21, the hydraulic cylinder 32 is disposed on one side of the flow distribution plate 2 close to the funnel 31, and the push rod 33 is disposed on the hydraulic cylinder 32 and is connected with the first flow passage 21. The plastic particles 10 enter the flow distribution plate 2 through the funnel 31, the funnel 31 and the push rod 33 are both communicated with the first flow passage 21 in the flow distribution plate 2, and when the push rod 33 is fully extended, the semi-molten plastic flowing into the flow distribution plate 2 in the funnel 31 is pushed to the heating area in the flow distribution plate 2 along the first flow passage 21 to be fully plasticized to form molten plastic.
In a further implementation manner of an embodiment, with reference to fig. 2, the printing assembly 5 includes a cylinder 51 and a thimble 52 disposed on the cylinder 51, the cylinder 51 is disposed on the upper end surface of the diversion plate 2, and the thimble 52 penetrates through the diversion plate 2 and is accommodated in the second flow passage 41. Further, hot nozzle 4 includes nozzle tip 42, nozzle tip 42 has gate 43, and cylinder 51 opens or closes gate 43 by controlling extension and contraction of ejector pin 52.
Referring to fig. 1 to 4, when printing is required, the position of the hot nozzle 4 is adjusted to a position to be printed by the moving frame 1, then the push rod 33 extends forward, and pushes the semi-molten plastic in the hopper 31 into the heating area in the flow distribution plate 2 along the first flow channel 21, the semi-molten plastic flows to the heating area on the flow distribution plate 2 through the first flow channel 21 to form molten plastic, and continues to flow into the second flow channel 41 of the hot nozzle 4 along the first flow channel 21, in this process, the push rod 33 injects the plastic, at the same time, the cylinder 51 drives the ejector pin 52 to retract, so that the gate 43 of the hot nozzle 4 is opened, so that the molten plastic flows to the gate 43 of the nozzle head 42, and then the cylinder 51 drives the ejector pin 52 to extend, so as to extrude the molten plastic to finish one-time printing, that is to print plastic particles 10 with a fixed size, thereafter, the push rod 33 retracts to return to the initial position (in this process, the push rod 33 performs glue extraction), that is, after the thimble 52 is closed, the push rod 33 returns to the original position, when the second printing is performed, the push rod 33 extends, and the air cylinder 51 drives the thimble 52 to move upward first and then downward to control the opening and closing of the gate 43 of the thermal nozzle 4, thereby completing the injection, and after the thimble 52 moves downward and closes the gate 43 of the thermal nozzle 4, the push rod 33 returns to the initial position, that is, when the thimble 52 is closed, the push rod 33 performs glue extraction, and when the thimble 52 is opened, the push rod 33 performs glue extraction.
It should be noted that, 3D printing is performed layer by establishing a three-dimensional model and printing according to the established three-dimensional model, so that the injection molding 3D printing hot runner system continuously prints plastic particles 10 with a fixed size according to the pre-established three-dimensional model and piles the plastic particles 10 before condensation, so that a layer-by-layer method can be adopted, in which a first layer 8 is printed, a second layer 9 is printed, and then an nth layer is sequentially printed to complete printing of a 3D product.
Referring to fig. 1, in a further implementation manner of an embodiment, the movable frame 1 includes a Z-axis lifting assembly, a Y-axis moving assembly, an X-axis moving assembly, and a fine-tuning assembly. The Z-axis lifting assembly is used for adjusting the height of the splitter plate 2 in the Z-axis direction, the Y-axis moving assembly is arranged on the Z-axis lifting assembly and used for driving the splitter plate 2 to horizontally move in the Y-axis direction, the X-axis moving assembly is arranged on the Y-axis moving assembly and used for driving the splitter plate 2 to horizontally move in the X-axis direction, and the fine-tuning assembly is arranged on the X-axis moving assembly and connected with the splitter plate 2 and used for driving the splitter plate 2 to vertically move in the Z-axis direction.
Specifically, the Z-axis lifting assembly comprises a screw 11 and a screw sleeve 12, wherein the screw 11 is in threaded connection with the screw sleeve 12. The Y-axis moving assembly comprises a support plate 13 and a first mechanical arm 14, wherein the support plate 13 is arranged on the screw rod 11, and the first mechanical arm 14 is arranged on the support plate 13. The X-axis moving assembly comprises a second mechanical arm 15, the second mechanical arm 15 is arranged on the first mechanical arm 14, the fine adjustment assembly comprises a third mechanical arm 16, and the third mechanical arm 16 is arranged on the second mechanical arm 15 and connected with the flow distribution plate 2. It should be noted that the first mechanical arm 14, the second mechanical arm 15, and the third mechanical arm 16 may be driven by a belt, and may also be driven by a motor, and a specific driving manner of the first mechanical arm 14, the second mechanical arm 15, and the third mechanical arm 16 is the prior art, and is not described herein again.
Before printing, firstly, the height of the thermal nozzle 4 on the workbench 7 is preliminarily adjusted by adjusting the height of the screw 11 to position the thermal nozzle 4, and in the process of printing, if the position of the thermal nozzle 4 in the Y-axis direction needs to be adjusted, the thermal nozzle 4 is moved in the Y-axis direction by the first mechanical arm 14, so that the second mechanical arm 15 connected with the first mechanical arm 14 and the third mechanical arm 16 connected with the second mechanical arm 15 can be driven to move in the Y-axis direction, and the splitter plate 2 connected with the third mechanical arm 16 and the thermal nozzle 4 arranged on the splitter plate 2 can be adjusted to move in the Y-axis direction. When the position of the hot nozzle 4 on the X axis needs to be adjusted, the second mechanical arm 15 moves in the X axis direction to drive the third mechanical arm 16 connected with the second mechanical arm 15, the splitter plate 2 connected with the third mechanical arm 16, and the hot nozzle 4 arranged on the splitter plate 2 to move in the X axis direction. When the heat nozzle 4 reaches a specified position on the X-Y plane, the height of the heat nozzle 4 and the table 7 is adjusted by the third mechanical arm 16, so that the heat nozzle 4 is moved to a position to be printed.
As shown in fig. 5, based on the same inventive concept, the present invention further provides an injection molding and printing method for a 3D printing hot runner, which is applied to the injection molding 3D printing hot runner system, and the injection molding and printing method includes the steps of:
s100, pouring plastic particles into the feeding assembly and enabling the plastic particles to be in a semi-molten state to form semi-molten plastic;
s200, the feeding component feeds the semi-molten plastic into the first runner of the flow distribution plate to be heated so that the semi-molten plastic is completely plasticized to form molten plastic, and the molten plastic flows into the second runner in the hot nozzle;
s300, driving the flow distribution plate through the moving frame to move the hot nozzle to a position to be printed;
s400, controlling the hot nozzle to be opened through the printing assembly to finish one-time printing;
and S500, repeating the steps in S100-S400 to continuously print out the molten plastic particles with fixed sizes, and stacking the printed molten plastic particles with fixed sizes before coagulation to obtain the 3D printed product.
In summary, the injection molding 3D printing hot runner system and the injection molding printing method provided by the present invention include: a movable frame capable of moving along X-axis direction, Y-axis direction and Z-axis direction; the flow distribution plate is connected with the movable frame; wherein the flow distribution plate is provided with a first flow passage; a feed assembly disposed on the diverter plate and in communication with the first flow passage; the hot nozzle is arranged on the flow distribution plate; wherein the hot nozzle is provided with a second flow passage which is communicated with the first flow passage; and a printing assembly disposed on the diversion plate and in communication with the second flow passage. The invention realizes injection molding 3D printing through the hot runner system.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. An injection molding 3D printing hot runner system, comprising:
a movable frame capable of moving along X-axis direction, Y-axis direction and Z-axis direction;
the flow distribution plate is connected with the movable frame; wherein the flow distribution plate is provided with a first flow passage;
a feed assembly disposed on the diverter plate and in communication with the first flow passage;
the hot nozzle is arranged on the flow distribution plate; wherein the hot nozzle is provided with a second flow passage which is communicated with the first flow passage; and
and the printing assembly is arranged on the flow distribution plate and communicated with the second flow passage.
2. The injection molding 3D printing hot-runner system of claim 1, further comprising a plurality of heaters disposed on the manifold and the thermal nozzle, respectively.
3. The injection molding 3D printing hot-runner system of claim 1, wherein the feed assembly comprises:
the funnel is arranged on the upper end surface of the flow distribution plate and is communicated with the first flow channel;
the hydraulic cylinder is arranged on one side of the flow distribution plate close to the funnel; and
and the push rod is arranged on the hydraulic cylinder and is connected with the first flow channel.
4. The injection molding 3D printing hot runner system according to claim 1, wherein the printing assembly comprises an air cylinder and ejector pins arranged on the air cylinder, the air cylinder is arranged on the upper end surface of the splitter plate, and the ejector pins penetrate through the splitter plate and are accommodated in the second flow channel.
5. The injection molding 3D printing hot runner system of claim 4, wherein the hot nozzle comprises a nozzle head having a gate, and the cylinder opens or closes the gate by controlling the ejector pin to extend or retract.
6. The injection molding 3D printing hot-runner system of claim 1, wherein the moving rack comprises:
the Z-axis lifting assembly is used for adjusting the height of the flow distribution plate in the Z-axis direction;
the Y-axis moving assembly is arranged on the Z-axis lifting assembly and used for driving the flow distribution plate to horizontally move in the Y-axis direction;
the X-axis moving assembly is arranged on the Y-axis moving assembly and is used for driving the flow distribution plate to horizontally move in the X-axis direction;
and the fine adjustment assembly is arranged on the X-axis moving assembly, is connected with the splitter plate and is used for driving the splitter plate to move up and down in the Z-axis direction.
7. The injection molding 3D printing hot runner system of claim 6, wherein the Z-axis lifting assembly comprises a screw and a screw sleeve, the screw being in threaded connection with the screw sleeve.
8. The injection molding 3D printing hot-runner system of claim 7, wherein the Y-axis moving assembly comprises a support plate and a first robot arm, the support plate being disposed on the screw, the first robot arm being disposed on the support plate; the X-axis moving assembly comprises a second mechanical arm, and the second mechanical arm is arranged on the first mechanical arm; the fine adjustment assembly comprises a third mechanical arm, and the third mechanical arm is arranged on the second mechanical arm and connected with the flow distribution plate.
9. A 3D printing hot runner injection molding printing method applied to the injection molding 3D printing hot runner system according to any one of claims 1 to 8, comprising the steps of:
pouring plastic particles into the feeding assembly and enabling the plastic particles to be in a semi-molten state to form semi-molten plastic;
the feeding assembly feeds the semi-molten plastic into the first flow channel of the flow distribution plate to be heated so that the semi-molten plastic is completely plasticized to form molten plastic, and the molten plastic flows into the second flow channel in the hot nozzle;
driving the splitter plate by the moving frame to move the thermal nozzle to a position to be printed;
controlling the opening of the hot nozzle through the printing component to finish one-time printing;
and repeating the steps to continuously print out the molten plastic particles with the fixed size, and piling the printed molten plastic particles with the fixed size before coagulation to obtain the 3D printed product.
10. The 3D printing hot runner injection molding printing method according to claim 9, wherein the step of continuously printing out the fixed size molten plastic particles and stacking the printed out fixed size molten plastic particles before coagulating to obtain the 3D printed product further comprises:
and piling the printed molten plastic particles with fixed sizes in a layer paving mode, printing a second layer after printing the first layer, and sequentially printing the Nth layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010711813.7A CN111716707A (en) | 2020-07-22 | 2020-07-22 | Injection molding 3D printing hot runner system and injection molding printing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010711813.7A CN111716707A (en) | 2020-07-22 | 2020-07-22 | Injection molding 3D printing hot runner system and injection molding printing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111716707A true CN111716707A (en) | 2020-09-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115446646A (en) * | 2022-09-21 | 2022-12-09 | 厦门华工睿智智能设备有限公司 | Mechanical arm |
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