CN105619812A - FDM type 3D printer - Google Patents
FDM type 3D printer Download PDFInfo
- Publication number
- CN105619812A CN105619812A CN201410623881.2A CN201410623881A CN105619812A CN 105619812 A CN105619812 A CN 105619812A CN 201410623881 A CN201410623881 A CN 201410623881A CN 105619812 A CN105619812 A CN 105619812A
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- gear
- printhead
- printer
- cylindrical
- fdm type
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Abstract
The invention discloses an FDM type 3D printer. The FDM type 3D printer comprises a printer body provided with Z-axis lifting mechanisms and a printing head. The printing head is internally provided with a discharging channel. The FDM type 3D printer further comprises spray heads, spray nozzles, a gear groove, a fixing rod, a first gear, a second gear, a driving motor and a microcontroller, wherein the spray heads are uniformly distributed on the printing head; the spray nozzles are arranged in the spray heads; the gear groove is formed in one side of the printing head; the fixing rod penetrates the printing head and the gear groove; the first gear is arranged in the gear groove; the second gear is engaged with the first gear to form a bevel gear; the driving motor is connected with the second gear; and the microcontroller is connected with the driving motor. The printing head is connected with the Z-axis lifting mechanisms through the fixing rod and can be driven by the Z-axis lifting mechanisms to perform reciprocating motion in the Z-axis direction. The FDM type 3D printer is provided with the spray heads and spray nozzles, and transmission of the bevel gear is utilized, so that rapid switching of the spray nozzles is achieved; a printer head is not needed to be replaced, and operation is convenient and fast; and meanwhile the structure of the discharging channel is improved, so that the blocking problem of the spray nozzles is avoided.
Description
Technical field
The present invention relates to a kind of FDM type 3D printer.
Background technology
The material melt extruding molding (FDM) 3D printer is usually thermoplastic, such as ABS or PC plastics, with thread feed. Material is heated fusing in shower nozzle, and then shower nozzle along part section profile and fills orbiting motion, and by the material extrusion of fusing. The material rapid solidification in atmosphere of extrusion, and bond with the material of surrounding, pile up, and then mold complete entity component.
But, FDM type 3D printer on the market also exists a main defect mostly at present, that is: printing head is generally provided only with a shower nozzle and nozzle, when needs utilize different bore nozzle to carry out printed product, whole printing head must be changed, just bring operational inconvenience thus.
Summary of the invention
It is an object of the invention to provide a kind of FDM type 3D printer, mainly solve FDM type 3D printer and there is the problem that printhead changes inconvenience.
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of FDM type 3D printer, including the printer main body being provided with Z-axis lifting mechanism and printhead, described printhead is connected with Z-axis lifting mechanism and can move back and forth along Z-direction under it drives, described printhead is additionally provided with tapping channel, also include the shower nozzle being distributed on this printhead, it is arranged in this shower nozzle, and it is at least the nozzle that four caliber size differ, it is opened in the gear grooved of printhead side, run through the fixing bar of printhead and gear grooved, it is arranged in this gear grooved, and the first gear engaged, engage and constitute the second gear of umbrella pinion with this first gear, the drive motor that rotating shaft is connected with this second gear, and be connected with this drive motor, for controlling the microcontroller of its rotating, described printhead is connected with Z-axis lifting mechanism by fixing bar and can move back and forth along Z-direction under it drives.
Further, described tapping channel includes the cylindrical upper bore being arranged in printhead and being sequentially communicated, conical mesopore, cylindrical-shaped extension hole and cylindrical buffer lower opening; Described nozzle connects with cylindrical buffer lower opening.
Yet further, described cylindrical buffer lower opening internal diameter is more than cylindrical-shaped extension hole internal diameter.
Compared with prior art, the invention has the beneficial effects as follows:
(1) nozzle that the present invention arranges multiple shower nozzle on the print head and caliber size differs, and printhead and shower nozzle thereon and nozzle rotation is driven by the mode of umbrella pinion transmission, thus when needing the nozzle changing different caliber size, the quick switching of nozzle can be realized, without changing whole head, and then significantly facilitate the operation of printer.
(2) existing FDM type 3D printer, it is in print procedure, if there is time-out midway, then when being further continued for printing, it is easy to occur that ABS plastic silk cannot continue the phenomenon of feeding forward, trace it to its cause, mainly ABS plastic silk meeting expanded by heating, then active force is externally produced, when active force acts on the tapping channel inwall of head, tapping channel inwall can give the counteracting force on one surface of plastic wire along its surface vertical direction, namely one bigger frictional force of plastic wire and extruding force are given, thus driving plastic wire to move to the upper and lower two ends of tapping channel inwall and result in blockage. tapping channel has then been improved by the present invention, it is by the mode of segment design tapping channel, at cylindrical upper bore, cone mesopore, under the effect of cylindrical-shaped extension hole and cylindrical buffer lower opening, plastic wire is in cone mesopore and cylindrical-shaped extension hole after expanded by heating, when its expansion extruding force acts on the hole wall of taper, hole wall will give plastic wire surface reaction force in certain angle of inclination downwards along its surface, just the frictional force formed between plastic wire and vias inner walls can be reduced thus, and be conducive to plastic wire to carry to cylindrical buffer lower opening, and then just can avoid well spray nozzle clogging.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of the anti-blocking passage of discharging.
Wherein, the parts name that accompanying drawing labelling is corresponding is called: 1-printer main body, 2-Z axle elevating mechanism, 3-printhead, 4-cylindrical upper bore, 5-cone mesopore, 6-cylindrical-shaped extension hole, 7-cylindrical buffer lower opening, 8-shower nozzle, 9-nozzle, 10-fixes bar, 11-the first gear, 12-the second gear, 13-drive motor, 14-microcontroller.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is further elaborated.
As it is shown in figure 1, the present invention includes the printer main body 1 being provided with Z-axis lifting mechanism 2 and printhead 3, described printhead 3 is connected with Z-axis lifting mechanism 2 and can move back and forth along Z-direction under it drives, described printhead 3 is additionally provided with tapping channel, also include the shower nozzle 8 being distributed on this printhead, it is arranged in this shower nozzle 8, and it is at least the nozzle 9 that four caliber size differ, it is opened in the gear grooved of printhead 3 side, run through the fixing bar 10 of printhead 3 and gear grooved, it is arranged in this gear grooved, and the first gear 11 engaged, engage and constitute the second gear 12 of umbrella pinion with this first gear 11, the drive motor 13 that rotating shaft is connected with this second gear 12, and be connected with this drive motor 13, for controlling the microcontroller 14 of its rotating, described printhead 3 is connected with Z-axis lifting mechanism 2 by fixing bar 10 and can move back and forth along Z-direction under it drives.
Saying further, tapping channel has also been improved by the present invention, as in figure 2 it is shown, this tapping channel includes the cylindrical upper bore 4, cone mesopore 5, cylindrical-shaped extension hole 6 and the cylindrical buffer lower opening 7 that are arranged in printhead 3 and are sequentially communicated; Described nozzle 9 connects with cylindrical buffer lower opening 7. In the present embodiment, described cylindrical buffer lower opening 7 internal diameter is more than cylindrical-shaped extension hole 6 internal diameter.
The present invention use improvement after printhead carry out printing mainly comprise the processes of when printer needs the nozzle changing to different bore, utilize microprocessor controls drive motor forward or reverse, drive the second pinion rotation, second pinion rotation simultaneously drive the first gear, then by the effect of gear grooved, make printhead rotate around fixing bar, and make on printhead the nozzle rotation of corresponding bore to correct position, and then the replacing to nozzle can be completed, its substitute mode is simple, convenient. And by the effect of the tapping channel after improving, it is possible to when using nozzle to carry out discharging printing, it is ensured that nozzle is not blocked.
Those of ordinary skill in the art is it will be appreciated that embodiment described here is to aid in reader understanding's principles of the invention, it should be understood that the protection domain of invention is not limited to such special statement and embodiment. Every make various possible equivalent replacement or change according to foregoing description, be all considered to belong to the scope of the claims of the present invention.
Claims (3)
1. a FDM type 3D printer, including the printer main body (1) being provided with Z-axis lifting mechanism (2) and printhead (3), described printhead is additionally provided with tapping channel in (3), it is characterized in that: also include the shower nozzle (8) being distributed on this printhead, it is arranged in this shower nozzle (8), and it is at least the nozzle (9) that four caliber size differ, it is opened in the gear grooved of printhead (3) side, run through the fixing bar (10) of printhead (3) and gear grooved, it is arranged in this gear grooved, and the first gear (11) engaged, engage and constitute the second gear (12 of umbrella pinion with this first gear (11), the drive motor (13) that rotating shaft is connected with this second gear (12), and be connected with this drive motor (13), for controlling the microcontroller (14) of its rotating, described printhead (3) is connected with Z-axis lifting mechanism (2) by fixing bar (10) and can move back and forth along Z-direction under it drives.
2. a kind of FDM type 3D printer according to claim 1, it is characterised in that: described tapping channel includes the cylindrical upper bore (4) being arranged in printhead (3) and being sequentially communicated, conical mesopore (5), cylindrical-shaped extension hole (6) and cylindrical buffer lower opening (7); Described nozzle (9) connects with cylindrical buffer lower opening (7).
3. a kind of FDM type 3D printer according to claim 2, it is characterised in that: described cylindrical buffer lower opening (7) internal diameter is more than cylindrical-shaped extension hole (6) internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410623881.2A CN105619812A (en) | 2014-11-07 | 2014-11-07 | FDM type 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410623881.2A CN105619812A (en) | 2014-11-07 | 2014-11-07 | FDM type 3D printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105619812A true CN105619812A (en) | 2016-06-01 |
Family
ID=56035329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410623881.2A Withdrawn CN105619812A (en) | 2014-11-07 | 2014-11-07 | FDM type 3D printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105619812A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110877474A (en) * | 2019-11-06 | 2020-03-13 | 潍坊泰利包装有限公司 | Production equipment and production method |
-
2014
- 2014-11-07 CN CN201410623881.2A patent/CN105619812A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110877474A (en) * | 2019-11-06 | 2020-03-13 | 潍坊泰利包装有限公司 | Production equipment and production method |
| CN110877474B (en) * | 2019-11-06 | 2021-08-27 | 潍坊泰利包装有限公司 | Printing device of packaging carton and production method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160601 |