CN211891993U - Adjustable heat dissipation formula 3D prints shower nozzle - Google Patents
Adjustable heat dissipation formula 3D prints shower nozzle Download PDFInfo
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- CN211891993U CN211891993U CN202020138964.3U CN202020138964U CN211891993U CN 211891993 U CN211891993 U CN 211891993U CN 202020138964 U CN202020138964 U CN 202020138964U CN 211891993 U CN211891993 U CN 211891993U
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Abstract
The utility model relates to an adjustable heat dissipation formula 3D prints shower nozzle, including first fan, second fan, feed inlet, feed arrangement, motor, heat dissipation fin piece, guide duct, air outlet, heating block, adjustable aviation baffle, feeding choke, ejection of compact shower nozzle and pivot. The cooling air flow from the first fan is changed by adjusting the adjustable air deflector, so that the effect of changing the overall heat dissipation is achieved. When adjustable aviation baffle rotated to position B, can realize using the air current that is higher than ambient air temperature to cool off discharge nozzle to reduce the temperature gradient of discharge nozzle department, provide more gentle cooling curve for the printing material, thereby make the finished piece realize from transparent to opaque wider range's shaping effect. When the adjustable air deflector rotates to the position A, the cooling airflow rate which is 1-2 times that of the prior nozzle technology can be realized by adjusting the power of the second fan.
Description
Technical Field
The utility model relates to a 3D prints the shower nozzle, especially relates to an adjustable heat dissipation formula 3D prints shower nozzle.
Background
3D printing belongs to one of rapid prototyping manufacturing technologies, and is a rapid prototyping technology for constructing an object by using bondable characteristics such as engineering plastics or metal powder and the like and layer-by-layer printing on the basis of a digital model file. The 3D printing is a novel processing technology, and is different from a traditional mechanical processing method of 'material reduction manufacturing', and an innovative processing method of 'material accumulation' layer by layer is adopted, so that a three-dimensional model graph can be quickly and accurately converted into a three-dimensional entity. The technology can simplify the manufacturing procedure of the product, shorten the product development period, improve the manufacturing efficiency and reduce the cost, is widely applied to industries of aerospace, national defense, medical treatment, culture, automobile and metal manufacturing and the like, and is considered as an important technical achievement in the manufacturing field in recent decades. According to the difference of printing technology principle, the 3D printing technology can be divided into fused deposition rapid prototyping technology (FDM), stereo light curing technology (SLA), laser cladding forming technology (LCF), selective laser sintering technology (SLS), three-dimensional printing forming (3DP), etc. Among them, fused deposition rapid prototyping (FDM) is the most widely used, and is expected to be the 3D printing technology for realizing the civilization and the home at the earliest.
For a 3D printer using FDM technology, a 3D printing spray head is the most critical and important component, and mainly comprises a feeding device, a nozzle module, a temperature control device, a transmission mechanism and the like. In the 3D printing process, the feeding device sends solid thermoplastic wires into the nozzle module, the fed thermoplastic wires are heated to a molten state under the control of the temperature control device, materials in the molten state are accumulated to a specified position in the continuous moving process of the transmission mechanism, and the process is repeated continuously until the 3D printing process is completed. In the 3D printing process, the control of the temperature plays an extremely critical role in the 3D printing effect. The existing spray head has the following problems: the heat dissipation assembly in the temperature control device is designed to be single and fixed, and only a single heat dissipation effect can be provided for heat dissipation of the whole 3D printing nozzle. For PETG class materials, the material has extremely high sensitivity to heat dissipation in the 3D printing and forming process, and the finished product can present high light transmission, translucency and matte opaque effects according to different heat dissipation effects, while the existing 3D printing spray head can only present 1 or 2 of the effects because of the limitation of the heat dissipation component effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adjustable heat dissipation formula 3D prints shower nozzle in order to overcome the defect that above-mentioned prior art exists. The function of changing the cooling forming condition of the spray head can be realized by changing the air flow mode of the spray head for radiating.
The purpose of the utility model can be realized through the following technical scheme:
an adjustable heat dissipation type 3D printing nozzle comprises a first fan, a second fan, a feeding hole, a feeding device, a motor, a heat dissipation fin block, an air guide pipe, an air outlet, a heating block, an adjustable air guide plate, a feeding throat pipe, a discharging nozzle and a rotating shaft; the feeding hole is formed in the upper part of the feeding device; the feeding device is used for feeding 3D printing wires from a feeding hole, the feeding throat is connected to the lower portion of the feeding device, a discharging nozzle is connected to the lower portion of the feeding throat, the feeding device is connected with a motor, the feeding device is driven by the motor to be used for feeding the 3D printing wires into the feeding throat from the feeding hole, a heating block used for heating the 3D printing wires in the feeding throat is arranged on the outer side of the discharging end of the feeding throat, and the discharging nozzle is used for extruding and stacking the heated 3D printing wires to a specified position; the outer side of the feeding end of the feeding throat pipe is provided with a radiating fin block, the radiating fin block is positioned in the air outlet direction of the first fan, and cooling air provided by the first fan is used for cooling the feeding end of the feeding throat pipe after passing through the radiating fin block; the air outlet of the second fan blows to the outlet of the discharge nozzle and is used for cooling the material extruded by the discharge nozzle; the air guide pipe is connected with the second fan, the adjustable air guide plate is connected with the radiating fin block through a rotating shaft, the adjustable air guide plate has A, B two rotating positions, at the position A, the adjustable air guide plate guides cooling air blown out by the first fan and heated by the radiating fin block to the air outlet through the air guide pipe, and at the position B, the cooling air blown out by the first fan and heated by the radiating fin block is not communicated with the air guide pipe.
The heat-resistant pipe is embedded in the feeding end of the feeding throat pipe so as to prevent the material at the feeding section from being heated and softened in advance.
The heat-resistant pipe is a heat-resistant plastic pipe, and other pipes with the same effect can be used, and the length of the heat-resistant pipe is set to be 15-25mm, preferably 18 mm.
The first fan and the second fan are connected through long screws, and screw sleeves are sleeved outside the long screws.
The first fan is connected with the feeding device through long screws, the feeding device is connected with the motor through long screws, and the first fan is connected with the radiating fin block through long screws.
The radiating fin block is positioned below the feeding device.
The air guide pipe is respectively connected with the second fan and the fin part of the radiating fin block through the upper opening and the side opening, and the lower part of the air guide pipe is connected with the air outlet.
The first fan and the second fan are centrifugal fans or structural combinations capable of generating the same side air outlet effect, and the air volume is not less than 3.0 CFM.
The adjustable air deflector can rotate 90 degrees through the rotating shaft, so that the wind direction from the first fan is changed, and the air outlet direction can be switched between the two directions of the air guide pipe and the feeding throat pipe as required.
The adjustable air deflector is connected with the support below the radiating fin block through a rotating shaft.
An arc-shaped groove is formed in the pipe orifice at the joint of the air guide pipe and the adjustable air guide plate and corresponds to the rotating position of the adjustable air guide plate; the feeding throat pipe is flush with the upper end face of the radiating fin block.
In practical application, the adjustable air deflector is selected to rotate to the position A or the position B according to the characteristics of a 3D printing material which is actually used, as shown in the figures 3 and 4, the first fan is started, the motor is started, the 3D printing wire is fed from the feeding hole and enters the feeding throat pipe under the driving of the motor through the feeding device; after the feeding material is heated by the heating block, the feeding material is extruded out by the discharge nozzle and is stacked to a designated position;
the first fan connected with the radiating fin block sucks air to blow the radiating fin block to absorb the heat of the radiating fin block, so that the temperature of the feeding throat part connected with the radiating fin block is reduced, and the temperature of the blown air is increased. When the adjustable air deflector rotates to the position A, the first fan sprays cooling air heated by the radiating fin block out of the air outlet after passing through the air guide pipe, and cools the material extruded by the discharging nozzle; at the moment, the second fan can be started, and the power of the second fan is adjusted to assist cooling so as to further fine-tune the cooling effect; when the adjustable air deflector is arranged at the position B, the cooling air provided by the first fan blows out towards the direction of the feeding throat after passing through the radiating fin block, and further cools the feeding throat, so that the radiating fin block is cooled to the maximum extent, and the temperature of the feeding end of the feeding throat is reduced; the second fan is started at the moment, so that the discharging nozzle can be cooled by using normal-temperature cooling air.
The utility model discloses can change the cooling air current from first fan through adjusting adjustable aviation baffle to reach and change whole radiating effect.
Compared with the prior art, the beneficial effects of the utility model are that:
1. when the adjustable air deflector rotates to the position B, cooling airflow from the first fan is heated by the heat dissipation fin block and then blown to the discharge nozzle through the air guide pipe, so that the discharge nozzle can be cooled by airflow with the temperature higher than that of ambient air, the temperature gradient at the discharge nozzle is reduced, a more gentle cooling curve is provided for printing materials, more cooling process selections are provided for materials such as petg, and the molding effect of the workpiece in a wider range from transparent to opaque is achieved.
2. When the adjustable air deflector rotates to the position A, the cooling airflow rate which is 1-2 times that of the prior nozzle technology can be realized by adjusting the power of the second fan.
Drawings
FIG. 1: the utility model discloses adjustable heat dissipation formula 3D prints the structural schematic diagram of shower nozzle.
FIG. 2: the utility model discloses adjustable heat dissipation formula 3D prints the section view of shower nozzle in feed inlet department.
FIG. 3: the utility model discloses optional rotational position A and the corresponding wind direction schematic diagram of aviation baffle with adjustable heat dissipation formula 3D prints shower nozzle.
FIG. 4: the utility model discloses optional rotational position B and the corresponding wind direction schematic diagram of aviation baffle with adjustable heat dissipation formula 3D prints shower nozzle.
Reference numbers in the figures: 1. the device comprises a first fan, a second fan, a third fan, a fourth fan, a fifth fan, a sixth fan, a seventh fan, a sixth fan.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Examples
Referring to fig. 1-4, an adjustable heat dissipation type 3D printing nozzle includes a first fan 1, a second fan 2, a feeding port 3, a feeding device 4, a motor 5, a heat dissipation fin block 7, an air guide pipe 8, an air outlet 9, a heating block 10, an adjustable air guide plate 11, a feeding throat 13, a discharging nozzle 14, and a rotating shaft 15; the feed inlet 3 is formed in the upper part of the feed device 4; the feeding device is used for feeding 3D printing wires from a feeding hole 3, the feeding throat 13 is connected to the lower portion of the feeding device 4, a discharging nozzle 14 is connected to the lower portion of the feeding throat 13, the feeding device 4 is connected with a motor 5, the feeding device 4 is driven by the motor 5 to send the 3D printing wires from the feeding hole 3 into the feeding throat 13, a heating block 10 used for heating the 3D printing wires in the feeding throat 13 is arranged on the outer side of the discharging end of the feeding throat 13, and the discharging nozzle 14 is used for extruding and accumulating the heated 3D printing wires to a specified position; the outer side of the feed end of the feeding throat 13 is provided with a radiating fin block 7, the radiating fin block 7 is positioned in the air outlet direction of the first fan 1, and cooling air provided by the first fan 1 is used for cooling the feed end of the feeding throat 13 after passing through the radiating fin block 7; the air outlet of the second fan 2 blows to the outlet of the discharge nozzle 14, and is used for cooling the material extruded by the discharge nozzle 14; the air guide pipe 8 is connected with the second fan 2, the adjustable air guide plate 11 is connected with the radiating fin block 7 through a rotating shaft 15, the adjustable air guide plate 11 has A, B two rotating positions, at the position A, the adjustable air guide plate 11 guides cooling air blown out by the first fan 1 and heated by the radiating fin block 7 to the air outlet 9 through the air guide pipe 8, and at the position B, the cooling air blown out by the first fan 1 and heated by the radiating fin block 7 is not conducted to the air guide pipe 8.
The heat-resistant pipe 12 is embedded in the feeding end of the feeding throat pipe 13 so as to prevent the material at the feeding section from being heated and softened in advance.
The heat-resistant pipe 12 is a heat-resistant plastic pipe, and other pipes with the same effect can be used, and the length is set to be 15-25mm, preferably 18 mm.
The first fan 1 is connected with the second fan 2 through long screws, and screw sleeves 6 are sleeved outside the long screws.
The first fan 1 is connected with the feeding device 4 through long screws, the feeding device 4 is connected with the motor 5 through long screws, and the first fan 1 is connected with the radiating fin block 7 through long screws.
The heat radiating fin block 7 is located below the feeding device 4.
The air guide pipe 8 is respectively connected with the second fan 2 and the fin part of the radiating fin block 7 through the upper opening and the side opening, and the lower part of the air guide pipe 8 is connected with the air outlet 9.
The first fan 1 and the second fan 2 are centrifugal fans or structural combinations capable of generating the same side air outlet effect, and the air volume is not less than 3.0 CFM.
The adjustable air deflector 11 can rotate 90 degrees through the rotating shaft 15, so that the wind direction from the first fan 1 is changed, and the air outlet direction can be switched between the two directions of the air guide pipe 8 and the feeding throat pipe 13 according to requirements.
A support is arranged below the radiating fin block 7, and the adjustable air deflector 11 is connected with the support below the radiating fin block 7 through a rotating shaft 15.
An arc-shaped groove is formed in the pipe orifice at the joint of the air guide pipe 8 and the adjustable air guide plate 11 and corresponds to the rotating position of the adjustable air guide plate 11; the feed throat 13 is flush with the upper end face of the fin block 7.
In practical application, the adjustable air deflector is selected to rotate to the position A or the position B according to the characteristics of a 3D printing material which is actually used, as shown in the figures 3 and 4, the first fan 1 is started, the motor 5 is started, the 3D printing wire is fed from the feeding hole 3, and the 3D printing wire enters the feeding throat pipe 13 under the driving of the motor 5 through the feeding device 4; after being heated by the heating block 10, the feeding materials are extruded by the discharging nozzle 14 and stacked to a designated position;
the first fan 1 connected to the fin block 7 sucks air to blow the fin block 7 to absorb heat of the fin block 7, thereby lowering the temperature of the feed throat 13 connected to the fin block 7 and raising the temperature of the blown air. When the adjustable air deflector 11 rotates to the position a, the first fan 1 ejects cooling air heated by the heat dissipation fin block 7 from the air outlet 9 after passing through the air guide pipe 8, so as to cool the material extruded by the discharge nozzle 14, and since the cooling air is heated by the heat dissipation fin block 7 to obtain a certain temperature, the extruded material can obtain a slower cooling speed; at this time, the second fan 2 can be started, and the power of the second fan 2 is adjusted to assist cooling so as to further fine-tune the cooling effect; when the adjustable air deflector is arranged at the position B, the cooling air provided by the first fan 1 is blown out towards the feeding throat 13 after passing through the radiating fin block 7, so that the feeding throat 13 is further cooled, the radiating fin block 7 is cooled to the maximum extent, and the temperature of the feeding end of the feeding throat 13 is reduced; the second fan 2 is turned on at this time to cool the discharging nozzle 14 with the cooling air at normal temperature.
The utility model discloses can change the cooling air current from first fan through adjusting adjustable aviation baffle 11 to reach and change whole radiating effect.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (10)
1. An adjustable heat dissipation type 3D printing nozzle is characterized by comprising a first fan (1), a second fan (2), a feeding hole (3), a feeding device (4), a motor (5), a heat dissipation fin block (7), an air guide pipe (8), an air outlet (9), a heating block (10), an adjustable air guide plate (11), a feeding throat pipe (13), a discharging nozzle (14) and a rotating shaft (15);
the feed inlet (3) is formed in the upper part of the feed device (4); the feeding device is characterized in that a 3D printing wire enters from a feeding hole (3), a feeding throat (13) is connected to the lower portion of the feeding device (4), a discharging spray head (14) is connected to the lower portion of the feeding throat (13), the feeding device (4) is connected with a motor (5), the feeding device (4) is driven by the motor (5) to be used for feeding the 3D printing wire into the feeding throat (13) from the feeding hole (3), a heating block (10) used for heating the 3D printing wire in the feeding throat (13) is arranged on the outer side of the discharging end of the feeding throat (13), and the discharging spray head (14) is used for extruding the heated 3D printing wire and accumulating the 3D printing wire to a designated position;
a radiating fin block (7) is arranged on the outer side of the feed end of the feed throat (13), the radiating fin block (7) is positioned in the air outlet direction of the first fan (1), cooling air provided by the first fan (1) is used for cooling the feed end of the feed throat (13) after passing through the radiating fin block (7), the air outlet of the second fan (2) blows towards the outlet of the discharging nozzle (14) and is used for cooling the material extruded by the discharging nozzle (14), the air guide pipe (8) is connected with the second fan (2), the adjustable air guide plate (11) is connected with the radiating fin block (7) through a rotating shaft (15), the adjustable air guide plate (11) has A, B two rotating positions, and in the position A, the adjustable air guide plate (11) guides the cooling air blown out by the first fan (1) and heated by the radiating fin block (7) to the air guide pipe (8) through the air guide pipe (8), at the position B, the cooling air blown by the first fan (1) and heated by the heat dissipation fin block (7) is not conducted to the air guide duct (8).
2. The adjustable heat dissipation type 3D printing nozzle as claimed in claim 1, wherein a heat-resistant pipe (12) is embedded inside the feeding end of the feeding throat (13).
3. The adjustable heat dissipation 3D printing nozzle according to claim 2, wherein the heat-resistant pipe (12) is a heat-resistant plastic pipe.
4. The adjustable heat dissipation type 3D printing nozzle as claimed in claim 1, wherein the first fan (1) and the second fan (2) are connected by a long screw, and a screw sleeve (6) is sleeved outside the long screw.
5. The adjustable heat dissipation type 3D printing nozzle as claimed in claim 1, wherein the first fan (1) is connected to the feeding device (4) through a long screw, the feeding device (4) is connected to the motor (5) through a long screw, and the first fan (1) is connected to the heat dissipation fin block (7) through a long screw.
6. The adjustable heat dissipation 3D printing nozzle according to claim 5, characterized in that the heat dissipation fin block (7) is located below the feeding device (4).
7. The adjustable heat dissipation type 3D printing nozzle as claimed in claim 1, wherein the air duct (8) is connected to the second fan (2) and the fin portion of the heat dissipation fin block (7) through the top and side openings, respectively, and the air outlet (9) is connected to the bottom of the air duct (8).
8. The adjustable heat dissipation type 3D printing nozzle as claimed in claim 1, wherein the first fan (1) and the second fan (2) are centrifugal fans or structural combinations capable of generating the same side air outlet effect, and the air volume is not less than 3.0 CFM.
9. The adjustable heat dissipation type 3D printing nozzle as claimed in claim 1, wherein the adjustable air deflector (11) is rotatable by 90 degrees via a rotating shaft (15), so as to change the wind direction from the first fan (1), and the wind outlet direction can be switched between the two directions of the air guide pipe (8) and the feeding throat pipe (13) as required.
10. The adjustable heat dissipation type 3D printing nozzle as claimed in claim 1, wherein an arc-shaped groove is formed in a pipe orifice at a connection position of the air guide pipe (8) and the adjustable air guide plate (11) and corresponds to a rotation position of the adjustable air guide plate (11); the feeding throat pipe (13) is flush with the upper end face of the radiating fin block (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020138964.3U CN211891993U (en) | 2020-01-21 | 2020-01-21 | Adjustable heat dissipation formula 3D prints shower nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020138964.3U CN211891993U (en) | 2020-01-21 | 2020-01-21 | Adjustable heat dissipation formula 3D prints shower nozzle |
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| Publication Number | Publication Date |
|---|---|
| CN211891993U true CN211891993U (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020138964.3U Active CN211891993U (en) | 2020-01-21 | 2020-01-21 | Adjustable heat dissipation formula 3D prints shower nozzle |
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| CN (1) | CN211891993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113524670A (en) * | 2021-07-15 | 2021-10-22 | 深圳市纵维立方科技有限公司 | Print head module and printer |
-
2020
- 2020-01-21 CN CN202020138964.3U patent/CN211891993U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113524670A (en) * | 2021-07-15 | 2021-10-22 | 深圳市纵维立方科技有限公司 | Print head module and printer |
| CN113524670B (en) * | 2021-07-15 | 2022-08-23 | 深圳市纵维立方科技有限公司 | Print head module and printer |
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Address after: 200437 No. 99, Handan Road, Shanghai, Hongkou District Patentee after: Shanghai Material Research Institute Co.,Ltd. Address before: 200437 No. 99, Handan Road, Shanghai, Hongkou District Patentee before: SHANGHAI Research Institute OF MATERIALS |