CN216506774U - Multi-temperature-zone fast extrusion spray head - Google Patents
Multi-temperature-zone fast extrusion spray head Download PDFInfo
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- CN216506774U CN216506774U CN202122860492.XU CN202122860492U CN216506774U CN 216506774 U CN216506774 U CN 216506774U CN 202122860492 U CN202122860492 U CN 202122860492U CN 216506774 U CN216506774 U CN 216506774U
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Abstract
The utility model discloses a multi-temperature-zone rapid extrusion nozzle which comprises a nozzle, wherein n heating structures are surrounded by the nozzle, n is more than or equal to 2, each heating structure forms a temperature zone, the nozzle is provided with n temperature zones, and heat insulation sheets are arranged between the heating structures. The nozzle is divided into a plurality of temperature areas according to a preheating area, a melting area and an extrusion area, and the silk material is fully heated before being extruded, so that the printing temperature of the material is improved, the extrusion force is reduced, and the extruded silk amount is increased, so that the high-speed printing can be applied to high-speed printing. And the different temperature areas are separated by the heat insulation sheet, so that the different temperature areas are not influenced by the temperature of the adjacent temperature areas, and the silk discharging effect is good.
Description
Technical Field
The utility model belongs to the field of 3D printing, and particularly relates to a multi-temperature-zone rapid extrusion nozzle.
Background
FDM shower nozzle adopts single warm area to heat the printing consumables, is fit for low-speed printing. The design is applied to the high-speed extrusion of flow and uses, need increase the hot junction temperature of shower nozzle in order to improve the melting speed of printing consumables, if the silk that the too high temperature shower nozzle was extruded can appear bubble, blacken yellow, or carbonization end cap scheduling problem. When the temperature is low and the high-speed filament is discharged, the resistance of the nozzle extruder is increased and reduced due to insufficient melting speed, so that the extrusion amount of filament materials is reduced. Thus, it is desirable to increase the temperature or length of the nozzle melt chamber to enhance the ability of the nozzle to extrude rapidly. When the temperature of the spray head is increased, because the cavity of the spray head is longer, the high temperature of the melting consumable material in unit length is longer when the wire is extruded at a certain speed, and the high temperature easily causes the problems of blackening, plugging, carbonization and the like of the wire material; the extrusion speed of the spray head in unit time is improved by increasing the temperature of the spray head and lengthening the length of the melting chamber. It is therefore desirable to design a high capacity fast filament dispensing nozzle to address these problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a multi-temperature-zone rapid extrusion nozzle, which is heated by a plurality of temperature zones, improves the printing temperature of materials, reduces extrusion force, improves the quantity of extruded filaments and is applied to high-speed printing.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a multi-temperature-zone rapid extrusion nozzle comprises a nozzle, wherein n heating structures are surrounded by the nozzle, n is larger than or equal to 2, each heating structure forms a temperature zone, the nozzle is provided with n temperature zones, and heat insulation sheets are arranged between the heating structures.
Generally, the hot end of the nozzle is divided into three regions, namely a preheating region, a melting region and an extrusion region, wherein the filament material in the preheating region is solid, the filament material in the melting region is glass state, and the filament material in the extrusion region is liquid. Therefore, the nozzle is divided into a plurality of temperature areas according to the preheating area, the melting area and the extrusion area, and the silk material is fully heated before being extruded, so that the printing temperature of the material is improved, the extrusion force is reduced, the extruded silk amount is increased, and the high-speed printing can be applied to high-speed printing. And the heat insulation sheets are used for separating different temperature areas, so that the different temperature areas are not influenced by the temperature of the adjacent temperature areas, and the silk outlet effect is good.
Further, the heating structure is a heating block. The heating block surrounds the nozzle, the temperature is uniform, the heating effect is good, and the volume of the heating block is increased to increase the heat storage capacity of melting.
Further, the heating structure is a heating plate. The heating plate has flexible structure.
Furthermore, heating metal nuts are arranged on two sides of the heating sheet. The heating sheet and the upper and lower heating metal nuts form a temperature zone, the heating sheet heats the heating metal nuts through heat conduction after heating, and the length of the heating metal nuts is adjusted, so that the length of the temperature zone is flexibly adjusted, for example, the length of a melting zone is increased to increase the heat storage capacity of melting.
Further, the temperature of the temperature zone is increased from top to bottom in sequence. The temperature of the temperature zone is gradually increased, so that the lowermost area of the nozzle can fully melt the silk material.
Further, the nozzle is connected with a throat. The throat is used to connect the nozzle and other components.
Further, the throat is connected with a nozzle radiator. The nozzle radiator is used for radiating heat, and prevents the heating structure from heating too high temperature to lead the silk material to be heated prematurely before entering the nozzle.
Further, the nozzle radiator is connected with a gas pipe joint. The air pipe joint is used for connecting the nozzle radiator, and the silk material enters the nozzle radiator from the air pipe joint and then enters the nozzle through the throat pipe.
Furthermore, the temperature zone at the bottommost part of the nozzle is an extrusion zone, the inner cavity of the nozzle of the extrusion zone is of a conical structure, and the bottom of the extrusion zone is in the highest temperature zone. The contact area of the conical surface and the filament materials is the largest, and the extrusion force on the conical surface of the inner cavity of the nozzle is the largest under the action of the nozzle extruder. Therefore, the glass state melting consumable for increasing the temperature of the conical part of the inner cavity of the nozzle has the highest glass state melting efficiency under the action of high temperature and high pressure. Meanwhile, the resistance to extrusion force of the nozzle can be effectively reduced.
Further, the length of the extrusion zone is less than the length of the other temperature zones. The main point of extruding fast reduces the length of the melting chamber of the extrusion zone, reduces the high temperature resistant time of the consumable material, improves the extrusion temperature to accelerate the melting speed of the liquid consumable material of the extrusion zone, and the nozzle extruder extrudes fast to realize the function of extruding fast with large capacity.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
the nozzle is divided into a plurality of temperature areas according to a preheating area, a melting area and an extrusion area, and the silk material is fully heated before being extruded, so that the printing temperature of the material is improved, the extrusion force is reduced, and the extruded silk amount is increased, so that the high-speed printing can be applied to high-speed printing. And the heat insulation sheets are used for separating different temperature areas, so that the different temperature areas are not influenced by the temperature of the adjacent temperature areas, and the silk outlet effect is good.
The heating structure can be a heating block or a heating sheet, the heating sheet and the upper and lower heating metal nuts form a temperature zone, the heating sheet heats the heating metal nuts through heat conduction after heating, and the length of the heating metal nuts is adjusted, so that the length of the temperature zone is flexibly adjusted.
And a nozzle radiator for radiating heat is connected above the nozzle, so that the situation that the silk material is heated too early before entering the nozzle due to overhigh temperature of the heating structure is prevented.
The temperature zone at the bottommost part of the nozzle is an extrusion zone, the inner cavity of the nozzle in the extrusion zone is of a conical structure, and the bottom of the extrusion zone is in the highest temperature zone. The contact area of the conical surface and the filament materials is the largest, and the extrusion force on the conical surface of the inner cavity of the nozzle is the largest under the action of the nozzle extruder. Therefore, the glass state melting consumable for increasing the temperature of the conical part of the inner cavity of the nozzle has the highest glass state melting efficiency under the action of high temperature and high pressure. Meanwhile, the resistance to extrusion force of the nozzle can be effectively reduced.
The main point of extruding fast reduces the length of the melting chamber of the extrusion zone, reduces the high temperature resistant time of the consumable material, improves the extrusion temperature to accelerate the melting speed of the liquid consumable material of the extrusion zone, and the nozzle extruder extrudes fast to realize the function of extruding fast with large capacity.
Drawings
The utility model is further illustrated below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a multi-temperature-zone rapid extrusion nozzle.
FIG. 2 is a cross-sectional view of a multi-temperature zone rapid extrusion nozzle.
Detailed Description
As shown in fig. 1 and 2, the multi-temperature-zone fast extrusion nozzle comprises a gas pipe connector 1, a nozzle radiator 2, a throat 3 and a nozzle 4 from top to bottom, wherein the nozzle 4 is surrounded by a heating block 5, a heat insulation sheet 6, a first heating metal nut 7, a heating sheet 8, a first heating metal nut 7, a heat insulation sheet 6, a second heating nut 9, a heating sheet 8 and a second heating nut 9 from top to bottom. The heating block 5 forms a first temperature zone, the first heating metal nut 7, the heating sheet 8 and the first heating metal nut 7 form a second temperature zone, the second heating nut 9, the heating sheet 8 and the second heating nut 9 form a third temperature zone, and each temperature zone is insulated by the heat insulation sheet 6.
Generally, the hot end of the spray head is divided into three regions, namely a preheating region 10, a melting region 11 and an extrusion region 12, wherein the filament material in the preheating region 10 is solid, the filament material in the melting region 11 is glass state, and the filament material in the extrusion region 12 is liquid. Therefore, the nozzle 4 is divided into three temperature areas according to the preheating area 10, the melting area 11 and the extrusion area 12, and the silk materials are fully heated before being extruded, so that the printing temperature of the materials is improved, the extrusion force is reduced, the extruded silk amount is increased, and the high-speed printing can be applied to high-speed printing. And the heat insulation sheet 6 is used for separating different temperature areas, so that the different temperature areas are not influenced by the temperature of the adjacent temperature areas, and the silk outlet effect is good.
The silk material enters the nozzle 4 radiator 2 from the air pipe joint 1 and then enters the nozzle 4 through the throat pipe 3. The temperature of the silk material is gradually increased after the silk material enters the nozzle 4, the silk material is in a solid state in the first temperature zone, is in a glass state in the second temperature zone and is in a liquid state in the third temperature zone after passing through the first temperature zone, and finally is extruded out from the bottom of the nozzle 4. The temperature of different temperature zones can be set according to the temperature characteristics of the silk material, so that the spray head can be compatible with more materials.
The inner cavity of the nozzle 4 of the extrusion area 12 is in a conical structure, and the bottom of the extrusion area 12 is in the highest temperature area. The contact area of the conical surface and the filament materials is the largest, and the extrusion force on the conical surface of the inner cavity of the nozzle 4 is the largest under the action of the nozzle extruder. Therefore, the glass state melting consumable with the temperature of the conical part of the inner cavity of the nozzle 4 increased has the highest glass state melting efficiency under the action of high temperature and high pressure. Meanwhile, the resistance to extrusion force of the nozzle can be effectively reduced. The length of the extrusion zone 12 is less than the length of the other temperature zones. The main point of extruding fast reduces the length of the melting cavity of the extruding area 12, reduces the high temperature resistant time of the consumable material, improves the extruding temperature so as to accelerate the melting speed of the liquid consumable material of the extruding area 12, and the nozzle extruder extrudes fast to realize the function of extruding fast with large capacity.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the same technical problems and achieve the same technical effects are all covered in the protection scope of the present invention.
Claims (10)
1. The utility model provides a shower nozzle is extruded fast to multi-temperature-zone, includes the nozzle, its characterized in that: the nozzle is surrounded by n heating structures, wherein n is more than or equal to 2, each heating structure forms a temperature zone, the nozzle is provided with n temperature zones, and a heat insulation sheet is arranged between the heating structures.
2. The multi-temperature-zone rapid extrusion nozzle according to claim 1, characterized in that: the heating structure is a heating block.
3. The multi-temperature-zone rapid extrusion nozzle according to claim 1, characterized in that: the heating structure is a heating plate.
4. The multi-temperature-zone rapid extrusion nozzle according to claim 3, characterized in that: and heating metal nuts are arranged on two sides of the heating sheet.
5. The multi-temperature-zone rapid extrusion nozzle according to claim 1, characterized in that: the temperature of the temperature zone is increased from top to bottom.
6. The multi-temperature-zone rapid extrusion nozzle according to claim 1, characterized in that: the nozzle is connected with a throat pipe.
7. The multi-temperature-zone rapid extrusion nozzle according to claim 6, characterized in that: the throat is connected with a nozzle radiator.
8. The multi-temperature-zone rapid extrusion nozzle according to claim 7, characterized in that: the nozzle radiator is connected with an air pipe joint.
9. The multi-temperature-zone rapid extrusion nozzle according to any one of claims 1 to 8, characterized in that: the bottom temperature zone of the nozzle is an extrusion zone, the inner cavity of the nozzle of the extrusion zone is of a conical structure, and the bottom of the extrusion zone is in the highest temperature zone.
10. The multi-temperature-zone rapid extrusion nozzle according to claim 9, characterized in that: the length of the extrusion area is less than the length of other temperature areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122860492.XU CN216506774U (en) | 2021-11-22 | 2021-11-22 | Multi-temperature-zone fast extrusion spray head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122860492.XU CN216506774U (en) | 2021-11-22 | 2021-11-22 | Multi-temperature-zone fast extrusion spray head |
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| CN216506774U true CN216506774U (en) | 2022-05-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024119473A1 (en) * | 2022-12-09 | 2024-06-13 | 苏州聚复科技股份有限公司 | 3d printer nozzle, 3d printer and printing method |
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2021
- 2021-11-22 CN CN202122860492.XU patent/CN216506774U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024119473A1 (en) * | 2022-12-09 | 2024-06-13 | 苏州聚复科技股份有限公司 | 3d printer nozzle, 3d printer and printing method |
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