CN209756094U - Ceramic heating structure of 3D printing pen - Google Patents
Ceramic heating structure of 3D printing pen Download PDFInfo
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- CN209756094U CN209756094U CN201920150474.2U CN201920150474U CN209756094U CN 209756094 U CN209756094 U CN 209756094U CN 201920150474 U CN201920150474 U CN 201920150474U CN 209756094 U CN209756094 U CN 209756094U
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- pen point
- heating
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Abstract
The utility model discloses a ceramic heating structure of a 3D printing pen, which belongs to the 3D technical field and particularly comprises a pen shell and a pen head, wherein the side wall of the pen shell is provided with a feed inlet which is connected with the pen head through a guide pipe; the pen points of the material guide pipes are connected through a connecting part; the pen shell comprises an upper shell and a lower shell, and after the upper shell is connected with the connecting part, the material guide pipe is accommodated in the upper shell; the lower shell is of a structure with openings at two ends, and one end of the lower shell is sleeved on the connecting part; the pen point extends out of the lower shell from the opening at the other end of the lower shell; the heat insulation ring is arranged on the pen cap sleeve, and after the heat insulation ring and the opening of the lower shell close to the pen point are mutually abutted, one end of the pen point accommodated in the lower shell is not contacted with the lower shell; the pen point is connected with the heating device, and the temperature of the pen point is increased after the heating device heats the pen point; the printing raw material is heated to be molten in the pen head and then flows out; the pen point and the lower shell are mutually isolated; the heating part of the pen point is isolated from the shell at the pen point, so that the phenomenon that the temperature of the shell of the pen point is too high and a user is scalded is avoided.
Description
Technical Field
The utility model relates to a 3D technical field especially relates to a ceramic heating structure of 3D printing pen.
Background
With the development of science and technology, 3D technology is gradually pursued by people, and in the 3D field, a 3D drawing pen is a popular product all the time, but the traditional 3D drawing pen has many defects; the heating device of the 3D painting pen is usually arranged near a discharge hole of the pen head, printing raw materials flow out of the pen head after being melted, then are rapidly cooled in air, and finally are solidified into a stable state; the temperature provided by the heating device is about 90 ℃, and the temperature transmitted to the pen shell is higher; the user is easily scalded during the use process.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists among the above-mentioned technique, the utility model provides a ceramic heating structure of 3D printing pen keeps apart heating device and the casing of nib department, avoids the high temperature of nib casing, scalds the user.
In order to achieve the purpose, the utility model provides a ceramic heating structure of a 3D printing pen, which comprises a pen shell and a pen head, wherein the side wall of the pen shell is provided with a feeding hole, and the feeding hole is connected with the pen head through a material guide pipe; the feeding device is characterized in that the pen points of the feeding pipe are connected through a connecting part; the pen shell comprises an upper shell and a lower shell, and after the upper shell is connected with the connecting part, the material guide pipe is accommodated in the upper shell; the lower shell is of a structure with openings at two ends, and one end of the lower shell is sleeved on the connecting part; the pen point extends out of the lower shell from the opening at the other end of the lower shell; the pen point sleeve is provided with a heat insulation ring, and after the heat insulation ring and the opening of the lower shell close to the pen point are mutually abutted, one end of the pen point accommodated in the lower shell is not contacted with the lower shell; the pen point is connected with a heating device, and the temperature of the pen point is increased after the heating device heats the pen point; the printing raw material is heated to be molten in the pen head and then flows out.
The pen point comprises a front end extending out of the pen shell, a rear end connected with the connecting part and a pen point middle end connected with the front end and the rear end; the heating device comprises a heating wire, and the heating wire is wound at the middle end of the pen point.
The outer wall of the middle end of the pen point is provided with a thread-shaped groove, and the heating wire is accommodated in the groove; and the depth of the groove is larger than the diameter of the heating wire.
Wherein, the plane parallel to the opening plane of the lower shell is the cross section of the lower shell, and the cross section area of the lower shell is gradually reduced from the end close to the connecting part to the end far away from the connecting part; the heat insulation ring is sleeved at the middle end of the pen point and is propped against the opening with the smaller area of the lower shell.
Wherein, the lateral wall of inferior valve is equipped with a plurality of through-holes, the through-hole distributes in the opposite side of inferior valve.
The heating wire is connected with the thermistor and then connected with the main control board, and the main control board controls the heating speed of the heating wire and controls the heating temperature of the heating wire through the thermistor.
The upper shell is internally provided with a lithium battery, and the lithium battery is connected with the main control board; supplying energy to the heating wire; the main control board is provided with a USB port, and the external input end charges the lithium battery through the USB port.
The utility model has the advantages that: compared with the prior art, the utility model comprises a pen shell and a pen head, wherein the side wall of the pen shell is provided with a feed inlet which is connected with the pen head through a guide pipe; the pen points of the material guide pipes are connected through a connecting part; the pen shell comprises an upper shell and a lower shell, and after the upper shell is connected with the connecting part, the material guide pipe is accommodated in the upper shell; the lower shell is of a structure with openings at two ends, and one end of the lower shell is sleeved on the connecting part; the pen point extends out of the lower shell from the opening at the other end of the lower shell; the heat insulation ring is arranged on the pen cap sleeve, and after the heat insulation ring and the opening of the lower shell close to the pen point are mutually abutted, one end of the pen point accommodated in the lower shell is not contacted with the lower shell; the pen point is connected with the heating device, and the temperature of the pen point is increased after the heating device heats the pen point; the printing raw material is heated to be molten in the pen head and then flows out; the pen point and the lower shell are mutually isolated; the heating part of the pen point is isolated from the shell at the pen point, so that the phenomenon that the temperature of the shell of the pen point is too high and a user is scalded is avoided.
Drawings
FIG. 1 is an exploded view of the overall structure of the present invention;
Fig. 2 is a structure view of the pen head of the present invention.
the main element symbols are as follows:
1. A lower case; 2. an upper shell; 3. a material guide pipe; 4. a connecting portion; 5. a lithium battery; 6. a pen point; 7. a main control board; 21. a feed inlet; 61. a heater; 62. a heat insulating ring; 63. the rear end of the pen point; 64. the middle end of the pen point; 65. pen head front end, 71, USB port.
Detailed Description
In order to make the present invention clearer, the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, a ceramic heating structure of a 3D printing pen includes a pen shell and a pen head 6, a feeding hole 21 is formed in a side wall of the pen shell, and the feeding hole 21 is connected to the pen head 6 through a material guiding pipe 3; the pen points 6 of the material guide pipe 3 are connected through a connecting part 4; the pen shell comprises an upper shell 2 and a lower shell 1, after the upper shell 2 is connected with a connecting part 4, a material guide pipe 3 is accommodated in the upper shell 2; the lower shell 1 is a structure with openings at two ends, and one end is sleeved on the connecting part 4; the pen point 6 extends out of the lower shell 1 from the opening at the other end of the lower shell 1; the pen point 6 is sleeved with a heat insulation ring 62, and after the heat insulation ring 62 and the opening of the lower shell 1 close to the pen point 6 are mutually abutted, one end of the pen point 6 accommodated in the lower shell 1 is not contacted with the lower shell 1; the pen point 6 is connected with a heating device, and after the heating device heats the pen point 6, the temperature of the pen point 6 is increased; the printing material is heated to be molten in the pen head 6 and then flows out.
In this embodiment, the nib 6 comprises a front nib end 65 protruding out of the housing, a rear end connected to the connecting portion 4 and a rear nib end 65 connecting the front nib end 65 and the rear end; the heating device comprises a heating wire 61, and the heating wire 61 is wound at the rear end 65 of the pen point; preferably, the outer wall of the rear end 65 of the pen point is provided with a thread-shaped groove, and the heating wire 61 is accommodated in the groove; the depth of the groove is greater than the diameter of the heating wire 61; therefore, the heating wire 61 can be completely accommodated in the groove to be fully contacted with the outer wall of the rear end 65 of the pen point, the heating effect is good, and the heating wire can not protrude in the direction far away from the pen point 6 and is contacted with the lower shell 1; wherein the pen head 6 is made of ceramic heating material.
Referring to fig. 2, a plane parallel to the opening plane of the lower case 1 is a cross section of the lower case 1, and the cross sectional area of the lower case 1 is gradually reduced from the end close to the connecting portion 4 to the end far from the connecting portion 4; the heat insulation ring 62 is sleeved at the middle end 64 of the pen point 6 and is propped against the opening with smaller area of the lower shell 1; the pen point 6 can not shake in the drawing process, and the connection is more stable; wherein, the side wall of the lower shell 1 is provided with a plurality of through holes which are distributed at the opposite side of the lower shell 1; when the temperature of the pen point 6 is high, heat can directly exchange heat with the outside through the through hole; if no through hole is provided, the pen point 6 does not directly contact with the lower shell 1, but still exchanges heat with the lower shell 1 through air; so that the temperature of the lower case 1 rises; after the through holes are formed, heat exchange between the lower shell 1 and the pen point 6 is greatly reduced.
In the embodiment, the heating wire 61 is connected with the thermistor and then connected with the main control board 7, the main control board 7 controls the heating speed of the heating wire 61, and controls the heating temperature of the heating wire 61 through the thermistor; the main control board 7 is provided with three heating gears, and when the gears are different, the main control board 7 controls different currents passing through the heating wire 61; when the gear is at the highest gear, the current passing through the heating wire 61 is the largest, and the heating wire 61 generates heat most quickly; when the gear is at the lowest gear, the current passing through the heating wire 61 is the minimum, and the heating wire 61 generates heat slowest; meanwhile, the current passing through the thermistor is also the maximum at the highest gear; the thermistor itself generates heat most quickly and is prevented from becoming small accordingly, so that the heating temperature and the heating speed of the heating wire 61 are detected.
In this embodiment, the upper case 2 further contains a lithium battery 5, and the lithium battery 5 is connected with the main control board 7; the heating wire 61 is powered; the main control board 7 is provided with a USB port 71, and the external input terminal charges the lithium battery 5 through the USB port 71.
The utility model has the advantages that:
1. The pen cap is provided with a heat insulation ring, and after the heat insulation ring and the opening of the lower shell close to the pen point are mutually abutted, one end of the pen point accommodated in the lower shell is not contacted with the lower shell; the pen point is connected with the heating device, and the temperature of the pen point is increased after the heating device heats the pen point; the printing raw material is heated to be molten in the pen head and then flows out; the pen point and the lower shell are mutually isolated; the heating part of the pen point is isolated from the shell at the pen point, so that the phenomenon that the temperature of the shell of the pen point is too high and a user is scalded is avoided;
2. The side wall of the lower shell is provided with a plurality of through holes, and the through holes are distributed on the opposite side of the lower shell; when the temperature of the pen point is high, heat can directly exchange heat with the outside through the through hole; if the through hole is not arranged, the pen point is not directly contacted with the lower shell, but still exchanges heat with the lower shell through air; so that the temperature of the lower case rises; after the through holes are formed, heat exchange between the lower shell and the pen point is greatly reduced.
The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.
Claims (7)
1. A ceramic heating structure of a 3D printing pen comprises a pen shell and a pen head, wherein a feeding hole is formed in the side wall of the pen shell and is connected with the pen head through a material guide pipe; the feeding device is characterized in that the pen points of the feeding pipe are connected through a connecting part; the pen shell comprises an upper shell and a lower shell, and after the upper shell is connected with the connecting part, the material guide pipe is accommodated in the upper shell; the lower shell is of a structure with openings at two ends, and one end of the lower shell is sleeved on the connecting part; the pen point extends out of the lower shell from the opening at the other end of the lower shell; the pen point cover is provided with a heat insulation ring, and after the heat insulation ring and the opening of the lower shell close to the pen point are mutually abutted, one end of the pen point, which is accommodated in the lower shell, is mutually separated from the lower shell; the pen point is connected with a heating device, and the temperature of the pen point is increased after the heating device heats the pen point; the printing raw material is heated to be molten in the pen head and then flows out.
2. The ceramic heating structure of a 3D printing pen according to claim 1, wherein the pen tip comprises a front end protruding out of the pen housing, a rear end connected to the connecting portion, and a pen tip middle end connecting the front end and the rear end; the heating device comprises a heating wire, and the heating wire is wound at the middle end of the pen point.
3. The ceramic heating structure of the 3D printing pen according to claim 2, wherein the outer wall of the middle end of the pen head is provided with a thread-shaped groove, and the heating wire is accommodated in the groove; and the depth of the groove is larger than the diameter of the heating wire.
4. The ceramic heating structure of the 3D printing pen according to claim 2, wherein a plane parallel to the opening plane of the lower case is a cross section of the lower case, the cross sectional area of the lower case gradually decreases from near the joint end to far from the joint end; the heat insulation ring is sleeved at the middle end of the pen point and is propped against the opening with the smaller area of the lower shell.
5. The ceramic heating structure of the 3D printing pen according to claim 1, wherein the side wall of the lower case is provided with a plurality of through holes, the through holes being distributed at opposite sides of the lower case.
6. the ceramic heating structure of the 3D printing pen according to claim 2, wherein the heating wire is connected with the thermistor and then connected with the main control board, and the main control board controls the heating speed of the heating wire and controls the heating temperature of the heating wire through the thermistor.
7. The ceramic heating structure of a 3D printing pen according to claim 6, wherein a lithium battery is further accommodated in the upper case, and the lithium battery is connected with the main control board; supplying energy to the heating wire; the main control board is provided with a USB port, and the external input end charges the lithium battery through the USB port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920150474.2U CN209756094U (en) | 2019-01-28 | 2019-01-28 | Ceramic heating structure of 3D printing pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920150474.2U CN209756094U (en) | 2019-01-28 | 2019-01-28 | Ceramic heating structure of 3D printing pen |
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| Publication Number | Publication Date |
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| CN209756094U true CN209756094U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920150474.2U Active CN209756094U (en) | 2019-01-28 | 2019-01-28 | Ceramic heating structure of 3D printing pen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113002154A (en) * | 2021-03-23 | 2021-06-22 | 宁波俊轩电子科技有限公司 | Heating pen point, heating pen and assembling method thereof |
-
2019
- 2019-01-28 CN CN201920150474.2U patent/CN209756094U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113002154A (en) * | 2021-03-23 | 2021-06-22 | 宁波俊轩电子科技有限公司 | Heating pen point, heating pen and assembling method thereof |
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Effective date of registration: 20220518 Address after: 523000 Room 102, building 1, No. 426, Qingfeng Road, Qingxi Town, Dongguan City, Guangdong Province Patentee after: Dongguan hongshengda 3D Technology Co.,Ltd. Address before: 518000 501, No. 17, South District, Jinghua new village, Jinglong community, Longhua street, Longhua District, Shenzhen, Guangdong Province Patentee before: Shenzhen Shiji Fangyuan Trade Co.,Ltd. |