CN112659550A - Interlayer preheating 3D printing device - Google Patents
Interlayer preheating 3D printing device Download PDFInfo
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- CN112659550A CN112659550A CN202011557584.4A CN202011557584A CN112659550A CN 112659550 A CN112659550 A CN 112659550A CN 202011557584 A CN202011557584 A CN 202011557584A CN 112659550 A CN112659550 A CN 112659550A
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- mirror
- laser
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- printing device
- interlayer
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- 238000010146 3D printing Methods 0.000 title claims abstract description 21
- 239000011229 interlayer Substances 0.000 title claims description 12
- 239000010410 layer Substances 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 238000007639 printing Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
Abstract
The invention belongs to the field of 3D printing, and particularly relates to an interlaminar preheating 3D printing device which comprises a laser, wherein the laser is fixedly connected with an X shaft of a 3D printer, the laser emitted by the laser irradiates the laser to a specified position through a reflecting mirror, a beam expanding mirror, a focusing mirror and a guide mirror, so that the defects of poor binding force and poor compactness in a printing model of the conventional FDM type 3D printer are overcome, the defects can be improved by preheating the laser to a target before an extrusion nozzle, the higher interface temperature can improve the wettability, the diffusivity and the randomness, the printing wires which are in contact with each other can be fully fused, the binding force between the filaments and between layers is improved, the anisotropy in a final finished product is reduced, and the compactness and the mechanical property of a 3D printing material are improved.
Description
Technical Field
The invention belongs to the field of 3D printing, and particularly relates to an interlayer preheating 3D printing device.
Background
The 3D printer is also called a three-dimensional printer, is an accumulative manufacturing technology, namely a machine of a rapid prototyping technology, and is a technology which is based on a digital model file, uses a special adhesive material such as wax, powdered metal or plastic and the like to manufacture a three-dimensional object by printing the adhesive material layer by layer. The bonding rate between layers is not high during the layer-by-layer printing process due to the temperature gradient existing between each layer. The existence of the temperature gradient causes the existence of thermal stress, so that the printed product has the problems of shrinkage, warping and the like. Previous efforts have been made to solve this problem, for example by optimizing process parameters, post-fabrication surface treatments and post-fabrication heat treatments. However, the prior art methods have not been effective for improving interlayer performance.
In order to overcome the defects of the prior art, the invention provides the 3D printing device with interlayer preheating, and the printing material in the molding area is preheated and maintained at the temperature in the molding process, so that the extruded molten wire can be fully fused with the molded material part, and the molding quality of the 3D printing model is improved.
Disclosure of Invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides an interlayer preheating 3D printing apparatus.
The invention is realized by the following technical scheme:
the utility model provides a 3D printing device that preheats between layers, includes the 3D printer, 3D printer X axle one end fixed mounting has laser emitter, the fixed plate is located the laser emitter top, reflector group welds in the fixed plate below and is located laser emitter the place ahead, reflector group corresponds mutually from top to bottom by first speculum and second mirror and constitutes, printer head is located X epaxial and is in same horizontal position with laser emitter, beam expanding mirror, focusing mirror, guide mirror are equipped with to printer head bottom, the printer bottom plate is equipped with to the printer head below.
Preferably, the laser transmitter is fixedly connected with the X axis and moves along with the X axis to enable the laser transmitter and the printer nozzle to be located at the same horizontal position.
Preferably, the laser emitted by the laser emitter can be irradiated to a specified preheating position in real time through the first reflecting mirror, the second reflecting mirror and the guide mirror along with the movement of the printer spray head.
Preferably, the mirror surface center points of the second reflecting mirror, the beam expanding mirror, the focusing mirror and the guiding mirror are positioned on the same horizontal line.
Preferably, the laser beam diameter is adjusted by a beam expander and a focusing lens.
Preferably, the guide mirror can be rotated to adjust the direction.
Preferably, the laser transmitter is power adjustable to control the degree of preheating of the preheating region by the transmitted laser light.
The invention has the beneficial effects that:
compared with the prior art, the device has the beneficial effects that the structure is simple, the practicability is high, and compared with the prior art, the method provided by the invention can be used for preheating the surface of the printing layer in advance and maintaining the temperature in real time along with the movement of the printing nozzle in the process of forming the molten wire, so that the printing wires which are in contact with each other can be fully fused, the compactness and the mechanical property of the 3D printing model are improved, and the forming quality of the 3D printing model is improved.
Drawings
FIG. 1 is a block diagram of the structure of the present invention;
FIG. 2 is a top view of the structure of the present invention;
FIG. 3 is a detailed structural view of the preheating structure according to the present invention;
in the figure: 1 printer support, 2 laser emitter, 3 right motors, 4Z axle motors, 5 second mirrors, 6 printing floors, 7 first mirrors, 8 beam expanders, 9 focusing mirrors, 10 guide mirrors, 11 printer nozzles, 12 consumables, 13 left motor, 14X axle guide rail, 15X axle motor, 16Y axle guide rail.
Detailed Description
In order that the objects, aspects and advantages of the invention will become more apparent, the invention will be described by way of example only, and in connection with the accompanying drawings. It should be understood, however, that in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures or processing steps closely related to the scheme according to the present invention are shown in the drawings, and other details not closely related to the present invention are omitted.
Combine fig. 1 and fig. 2 to show, a 3D printing device that preheats between layers, the device includes the printer support, left motor 13, right motor 3, Z axle motor 4 are equipped with on the printer support, 2 fixed mounting of laser emitter are on X axle guide rail 14, first speculum 7 is located 2 the place ahead of laser emitter, second speculum 5 is located first speculum 7 below, printer shower nozzle 11 is located X axle guide rail 14, 11 below of printer shower nozzle are equipped with beam expanding mirror 8, focusing mirror 9, leading mirror 10, printer shower nozzle 11 below is equipped with printer bottom plate 6, 11 sides of printer shower nozzle are equipped with X axle motor 15.
Specifically, the laser emitter 2 is fixedly connected to the X-axis guide rail 16 and moves along with it to be at the same relative position with the printer head 11 along the Y-axis direction.
Specifically, the mirror surface center points of the second reflecting mirror 5, the beam expanding mirror 8, the focusing mirror 9 and the guiding mirror 10 are located on the same horizontal line.
Specifically, the laser emitted by the laser emitter 2 can be irradiated to a specified preheating position in real time through the first reflecting mirror 7, the second reflecting mirror 5 and the guide mirror 10 along with the movement of the printer head 11.
Specifically, the laser beam is adjusted in diameter through a beam expander 8 and a focusing mirror 9.
Specifically, the steering mirror 10 can rotationally adjust the beam irradiation position.
In particular, the laser emitter 2 may be power regulated to control the degree of preheating of the preheating region by the emitted laser light.
As shown in fig. 2, the laser emitter 2 is fixedly connected to the X-axis guide 16 and moves along with it to be at the same relative position with the printer head 11 along the Y-axis direction.
The laser emitter 2 shown in fig. 1 and fig. 3 is installed in front of the laser emitter 2, the laser emitted by the laser emitter 2 is adjusted to the same height as the beam expander 8 through the first reflector 7 and the second reflector 5, the beam expander 8 and the focusing mirror 9 are fixedly welded at the lower end of the printer head 11, the guide mirror 10 is located at the same horizontal height, the printer head can move 11 along with the movement of the printer head, and the emitted light is finally refracted to a specified preheating area through the guide mirror 10.
Working principle or structural principle, when using: left motor 13, right side motor 3 simultaneous working, adjust the removal of Y axle guide rail 16, it removes to drive printer nozzle 11 and laser emitter 2 simultaneously, and guarantee that printer nozzle 11 and laser emitter 2 are unchangeable at the ascending relative position of Y axle side, laser that laser emitter 2 sent adjusts laser to the central height of beam expanding mirror 8 through first speculum 7 and second speculum 5, X axle motor 15 work drives and prints shower nozzle 11 and remove along the scanning route, printer nozzle 11's removal is driving beam expanding mirror 8 of its lower part installation simultaneously, focusing mirror 9, leading mirror 10 removes, the laser that sends through second speculum 5 passes through beam expanding mirror 8 in proper order, focusing mirror 9 carries out the size of adjusting beam diameter, finally shine appointed preheating position through the leading mirror, come to preheat the appointed region.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the present disclosure.
Claims (7)
1. The utility model provides a 3D printing device that preheats between layers, a serial communication port, the device includes the printer support, left motor, right motor, Z axle motor, laser emitter are equipped with on the printer support, laser emitter fixed mounting is on X axle guide rail, first speculum is located laser emitter the place ahead, the second speculum is located first speculum below, the printer shower nozzle is located X axle guide rail, beam expanding mirror, focusing mirror, guide mirror are equipped with to the printer shower nozzle below, the printer bottom plate is equipped with to printer shower nozzle (11) below, the X axle motor is equipped with to the printer shower nozzle side.
2. An interlayer preheated 3D printing device according to claim 1, characterized in that: the laser emitter is fixedly connected with the X-axis guide rail and moves along with the X-axis guide rail to enable the laser emitter and the printer nozzle to be located at the same relative position along the Y-axis direction.
3. An interlayer preheated 3D printing device according to claim 1, characterized in that: the mirror surface central points of the second reflecting mirror, the beam expanding mirror, the focusing mirror and the guiding mirror are positioned on the same horizontal line.
4. An interlayer preheated 3D printing device according to claim 1, characterized in that: the laser emitted by the laser emitter can irradiate a specified preheating position in real time through the first reflecting mirror, the second reflecting mirror and the guide mirror along with the movement of the printer spray head.
5. An interlayer preheated 3D printing device according to claim 1, characterized in that: the laser beam diameter is adjusted through the beam expander and the focusing lens.
6. An interlayer preheated 3D printing device according to claim 1, characterized in that: the guide mirror can rotate to adjust the light beam irradiation position.
7. An interlayer preheated 3D printing device according to claim 1, characterized in that: the laser transmitter may be power regulated to control the degree of preheating of the preheating region by the transmitted laser light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011557584.4A CN112659550A (en) | 2020-12-25 | 2020-12-25 | Interlayer preheating 3D printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011557584.4A CN112659550A (en) | 2020-12-25 | 2020-12-25 | Interlayer preheating 3D printing device |
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| Publication Number | Publication Date |
|---|---|
| CN112659550A true CN112659550A (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011557584.4A Pending CN112659550A (en) | 2020-12-25 | 2020-12-25 | Interlayer preheating 3D printing device |
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| CN (1) | CN112659550A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231646A (en) * | 2021-04-25 | 2021-08-10 | 西安建筑科技大学 | Method for preparing GCr15 bearing steel and automobile parts based on electron beam 3D printing technology |
| CN113561479A (en) * | 2021-04-30 | 2021-10-29 | 北京航空航天大学 | Laser-assisted forming modularized hybrid additive manufacturing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206999631U (en) * | 2017-07-17 | 2018-02-13 | 杭州德迪智能科技有限公司 | A kind of 3D printing device that print area is preheated by optical-fiber laser |
| CN111151754A (en) * | 2020-01-17 | 2020-05-15 | 广州汉牛机械设备有限公司 | 3D printing device |
-
2020
- 2020-12-25 CN CN202011557584.4A patent/CN112659550A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206999631U (en) * | 2017-07-17 | 2018-02-13 | 杭州德迪智能科技有限公司 | A kind of 3D printing device that print area is preheated by optical-fiber laser |
| CN111151754A (en) * | 2020-01-17 | 2020-05-15 | 广州汉牛机械设备有限公司 | 3D printing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231646A (en) * | 2021-04-25 | 2021-08-10 | 西安建筑科技大学 | Method for preparing GCr15 bearing steel and automobile parts based on electron beam 3D printing technology |
| CN113561479A (en) * | 2021-04-30 | 2021-10-29 | 北京航空航天大学 | Laser-assisted forming modularized hybrid additive manufacturing device |
| CN113561479B (en) * | 2021-04-30 | 2023-02-24 | 北京航空航天大学 | Laser-assisted forming modularized hybrid additive manufacturing device |
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Application publication date: 20210416 |