CN215319333U - Extrusion walking line type paste spreading device and 3D printer thereof - Google Patents
Extrusion walking line type paste spreading device and 3D printer thereof Download PDFInfo
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- CN215319333U CN215319333U CN202120859586.2U CN202120859586U CN215319333U CN 215319333 U CN215319333 U CN 215319333U CN 202120859586 U CN202120859586 U CN 202120859586U CN 215319333 U CN215319333 U CN 215319333U
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Abstract
The invention provides an extrusion wire-walking type paste spreading device and a 3D printer thereof. Compared with the prior art, the invention changes the traditional paste spreading mode, particularly realizes the wiring type paste spreading mode through the extrusion wiring type paste spreading device, can control the position, the area and the shape of the paste spreading, greatly reduces the quantity of the paste required to be recycled after printing and realizes high-precision paste spreading.
Description
Technical Field
The invention relates to 3D printing, in particular to an extrusion walking line type paste spreading device and a 3D printer thereof.
Background
The 3D printing technology is a new fast forming technology at present, and is a technology for constructing an object by using materials such as powder, silk, paste and the like in a layer-by-layer printing manner on the basis of a digital model file.
The ceramic 3D printing process adopts the raw materials of ceramic paste materials, ceramic powder or ceramic slurry, and the paving principle of the ceramic paste materials on a printing platform at present is as follows: offer rectangular form discharge gate on the print platform, paste material is extruded the back from the discharge gate and is laid on print platform's printing region through the scraper, the position of laying and area all can't be controlled, the area of laying promptly can be far away from and print required area, thereby cause the waste of lotion, even the lotion can be retrieved and recycled, the lotion quality after retrieving also descends to some extent, and recovery work can consume a large amount of time, when the area of laying simultaneously (the relevant prior art's of the cream material is paved the area of laying is great), it is difficult to realize the laying.
Disclosure of Invention
In view of the above, the invention provides an extrusion wire-walking type paste spreading device and a 3D printer thereof, compared with the prior art, the traditional paste spreading mode is changed, the wire-walking type paste spreading mode is realized through the extrusion wire-walking type paste spreading device, the paste is spread through the combination of an extrusion head and a scraping mechanism, the position, the area and the shape of the paste can be controlled, the quantity of paste required to be recovered after printing is greatly reduced, and the high-precision paste spreading is realized.
The paste extrusion mechanism comprises a mechanical arm and an extrusion head, the extrusion head moves above the printing platform along a preset route under the driving of the mechanical arm, the paste material is extruded from an extrusion end of the extrusion head and is attached to the printing platform, and the attachment route of the paste material on the printing platform is consistent with the movement route of the extrusion end.
Further, the paste material is attached to the printing platform in a serpentine path.
Further, the pasty material is attached to the printing platform in a circular path spiraling from the inside to the outside.
Further, at least one paste extruding mechanism is installed outside the printing area of the printing platform.
Furthermore, three paste extrusion mechanisms are installed outside the printing area of the printing platform, three printing areas are arranged in the printing area of the printing platform, and one paste extrusion mechanism is matched with each of the three printing areas.
Further, the scraping mechanism comprises at least one scraper which scrapes the surface of the pasty material along one direction.
Further, the scraping mechanism comprises at least one scraper which sequentially scrapes the surface of the pasty material along at least two directions.
Furthermore, the scraping mechanism comprises two scrapers which are respectively a first scraper and a second scraper, and the surfaces of the first scraper and the second scraper are scraped by the paste materials in sequence under the driving of the driving motor.
Further, the scraping depth of the first scraper is smaller than that of the second scraper.
The invention provides an extrusion wiring type paste spreading device and a 3D printer thereof, which are provided with a printing platform, a paste extruding mechanism and a strickling mechanism, wherein the printing platform is in the prior art, the paste extruding mechanism is the first invention point, specifically, the paste extruding mechanism comprises a mechanical arm (specifically a mechanical arm module) and an extruding head, the extruding head moves along a preset route above the printing platform under the driving of the mechanical arm, the paste material is extruded from the extruding head in a strip shape, and the paste material is attached to the printing platform in a wiring manner under the driving of the extruding head, so that the position, the area and the shape of paste spreading are controlled and adjusted by the mechanical arm.
The secondary invention is a strickling mechanism for strickling the long strip pasty material, and particularly the strickling mechanism comprises at least one scraper which strickles the surface of the pasty material along at least two directions in sequence, and the multidirectional multiple strickling can effectively improve the strickling effect of the long strip pasty material. The reason for using this special striking mechanism is as follows: the paste material is attached to the printing platform in a wiring mode to form a printing layer to be strickled off, the continuity of the printing layer formed in the wiring mode is insufficient, one-time strickling work cannot guarantee the continuity of the printing layer, and therefore the strickling frequency needs to be increased and strickling needs to be carried out from different directions.
Therefore, compared with the prior art, the invention has the following advantages:
1) the position, the area and the shape of the spread paste can be controlled, and high-precision spread paste is realized;
2) the quantity of paste required to be recovered after printing is greatly reduced, and the demolding difficulty is reduced;
3) the scraping effect of the surface of the paste material is improved;
4) due to the reduction of the quantity of the paste in the forming cavity, the paste residue attached to the inner wall of the forming cavity is greatly reduced, the cleaning difficulty in the forming cavity is reduced, and the cleanliness in the forming cavity is improved;
5) the reduction of the spreading area of the paste reduces the spreading difficulty.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of an extrusion walking-line type paste spreading device and a 3D printer thereof according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an extrusion walking-line type paste spreading device and a 3D printer thereof according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an extrusion walking-line type paste spreading device and a 3D printer thereof according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The first embodiment is as follows:
referring to fig. 1 to 3, the embodiment provides an extrusion line-running type paste spreading device and a 3D printer thereof, which are firstly provided with a printing platform 1 and a paste extruding mechanism 2, wherein the paste extruding mechanism 2 is installed outside a printing area 11 of the printing platform 1, the paste extruding mechanism 2 comprises a mechanical arm 21 and an extruding head 22, the extruding head 22 moves along a preset route above the printing platform 1 under the driving of the mechanical arm 21, a paste material is extruded from an extruding end of the extruding head 22 and is attached to the printing platform 1, and an attaching route of the paste material on the printing platform 1 is consistent with a moving route of the extruding head 22; the laser device is characterized by further comprising a laser device 3, wherein the position of an irradiation area of the laser device 3 is matched with the position of an area to be irradiated, and the area of the irradiation area of the laser device 3 is smaller than that of the area to be irradiated.
Referring to fig. 1 and 2, the paste material 5 is attached to the printing platform 1 in a serpentine path, and the scraping mechanism 4 includes a scraper which performs a first scraping along a length direction of the paste material 5, and performs a second scraping along a width direction of the paste material 5 after performing the first scraping.
Referring to fig. 1 and 3, the pasty material 6 is attached to the printing platform in a circular path from inside to outside, and the scraping mechanism 4 comprises three scrapers for scraping the circular pasty material 6 from three different directions, wherein an included angle between any two adjacent directions in the three directions is 120 degrees.
The invention provides an extrusion wiring type paste spreading device and a 3D printer thereof, which are characterized in that a printing platform, a paste extruding mechanism, a strickling mechanism and a laser are firstly arranged, wherein the printing platform and the laser are in the prior art, the paste extruding mechanism is the first invention point, specifically, the paste extruding mechanism comprises a mechanical arm and an extruding head, the extruding head is driven by the mechanical arm to move along a preset route above the printing platform, the paste material is extruded from the extruding head in a strip shape, and the paste material is driven by the extruding head to be attached to the printing platform in a wiring manner, so that the position, the area and the shape of paste spreading are controlled and adjusted by the mechanical arm.
The secondary invention is a strickling mechanism for strickling the long strip-shaped paste material, the invention increases the number of scrapers and the strickling direction on the basis of the existing strickling mechanism, particularly, the strickling mechanism comprises at least one scraper, and the scrapers strickling the surface of the paste material along at least two directions in sequence, and the multi-directional strickling can effectively improve the strickling effect of the long strip-shaped paste material. The reason for using this special striking mechanism is as follows: the paste material is attached to the printing platform in a wiring mode to form a printing layer to be strickled off, the continuity of the printing layer formed in the wiring mode is insufficient, one-time strickling work cannot guarantee the continuity of the printing layer, and therefore the strickling frequency needs to be increased and strickling needs to be carried out from different directions.
The above embodiment mentions that the paste material is attached to the printing platform in a serpentine path, the scraper firstly completes the first scraping along the length direction of the paste material, and the scraper completes the second scraping along the width direction of the paste material after completing the first scraping. The special scraping method different from the prior art is beneficial to improving the scraping effect of the serpentine paste material, and the scraping effect mainly aims at the flatness of the surface of the paste material and the continuity of the interior of the paste material. (see FIG. 2)
The above embodiment also mentions that the paste material is attached to the printing platform in a circular path from the inner circle to the outer circle, and the scraping mechanism comprises three scrapers, the three scrapers scrape the circular paste material from three different directions, and an included angle between any two adjacent directions in the three directions is 120 degrees. The special scraping method different from the prior art is beneficial to improving the scraping effect of the circular ring-shaped paste material, and the scraping effect mainly aims at the flatness of the surface of the paste material and the continuity of the interior of the paste material. (see FIG. 3)
Therefore, compared with the prior art, the invention has the following advantages:
1) the position, the area and the shape of the spread paste can be controlled, and high-precision spread paste is realized;
2) the quantity of paste required to be recovered after printing is greatly reduced, and the demolding difficulty is reduced;
3) the scraping effect of the surface of the paste material is improved;
4) because the quantity of the paste in the forming cavity is reduced, the paste residue attached to the inner wall of the forming cavity is greatly reduced, the cleaning difficulty in the forming cavity is reduced, and the cleanliness in the forming cavity is improved.
Example two:
referring to fig. 1 to fig. 2, there are shown an extrusion line type paste spreading device and a 3D printer thereof according to a second embodiment of the present invention, and on the basis of the above embodiments, the following technical solutions are further made as improvements: two paste extrusion mechanisms are installed outside the printing area of the printing platform, two printing areas are arranged in the printing area of the printing platform, and the two printing areas are respectively matched with one paste extrusion mechanism, so that paste can be spread at two different positions of the printing platform at the same time.
Example three:
referring to fig. 1 to fig. 2, there are shown an extrusion line type paste spreading device and a 3D printer thereof according to a third embodiment of the present invention, and on the basis of the above embodiments, the present embodiment further adopts the following technical solutions as improvements: the scraping mechanism comprises two scrapers which are respectively a first scraper and a second scraper, the surfaces of the first scraper and the second scraper are scraped through the paste materials in sequence under the driving of the driving motor, and the scraping depth of the first scraper is smaller than that of the second scraper. The relation between the first scraper and the second scraper is equivalent to the relation between a coarse adjusting knob and a fine adjusting knob on a microscope, the scraping depth of the first scraper is shallower than that of the second scraper, and the first scraper can play a role in buffering, and the buffering principle is as follows: the deeper the scraper scrapes, the greater the impact on the pasty material, and the smaller the volume of the pasty material laid on the printing platform, if the scraping mode without buffer is adopted, the pasty material is easily impacted by exceeding the load, and the situation that the pasty material is partially separated from the printing platform or even completely separated from the printing platform may occur.
Example four:
referring to fig. 1 to fig. 2, there are shown an extrusion line type paste spreading device and a 3D printer thereof according to a third embodiment of the present invention, and on the basis of the above embodiments, the present embodiment further adopts the following technical solutions as improvements: the strickle mechanism and the extrusion head in the first to third embodiments are not integrated, which means that the strickle mechanism and the extrusion head respectively need different mechanical modules for control, and the strickle mechanism (specifically, the scraper) and the extrusion head are mounted on the same mechanical arm (specifically, the mechanical arm module), so that the production cost is saved by reducing the mounting number of the mechanical arms.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. An extrusion line-running type paste spreading device and a 3D printer thereof are characterized by comprising a printing platform (1) and a paste extrusion mechanism (2), wherein the paste extrusion mechanism (2) is installed outside a printing area (11) of the printing platform (1), the paste extrusion mechanism (2) comprises a mechanical arm (21) and an extrusion head (22), the extrusion head (22) is driven by the mechanical arm (21) to move above the printing platform (1) along a preset route, a paste material is extruded from an extrusion end of the extrusion head (22) and is attached to the printing platform (1), the attachment route of the paste material on the printing platform (1) is consistent with the movement route of the extrusion head (22), the 3D printer further comprises a scraping mechanism (4), and the scraping mechanism (4) is installed outside the printing area (11) of the printing platform (1), the pasty material attached to the printing platform (1) is subjected to surface leveling under the action of the leveling mechanism (4) and then forms an area to be irradiated; the device is characterized by further comprising a laser (3), wherein the position of an irradiation area of the laser (3) is matched with the position of the area to be irradiated, and the area of the irradiation area of the laser (3) is smaller than that of the area to be irradiated.
2. The extrusion-fed paste spreading device and the 3D printer thereof as claimed in claim 1, wherein the paste material is attached to the printing platform (1) in a serpentine path.
3. An extrusion-fed paste spreading device and 3D printer thereof according to claim 1, wherein the paste material is attached to the printing platform (1) in a circular path spiraling from inside to outside.
4. The extrusion walking line type paste spreading device and the 3D printer thereof as claimed in claim 1, wherein at least one paste extruding mechanism (2) is installed outside the printing area of the printing platform (1).
5. The extrusion-walking-line type paste spreading device and the 3D printer thereof as claimed in claim 4, wherein three paste extruding mechanisms (2) are installed outside the printing area (11) of the printing platform (1), and three areas to be irradiated are installed inside the printing area (11) of the printing platform (1), and one paste extruding mechanism (2) is respectively matched with each of the three printing areas (11).
6. The extrusion-fed paste spreading device and the 3D printer thereof as claimed in claim 1, wherein the scraping mechanism (4) comprises at least one scraper (41), and the scraper (41) scrapes the surface of the paste material along one direction.
7. The extrusion-fed paste spreading device and the 3D printer thereof as claimed in claim 6, wherein said scraping mechanism (4) comprises at least one scraper (41), said scraper (41) sequentially scraping the surface of said paste material along at least two directions.
8. The extrusion-driven paste spreading device and the 3D printer thereof as claimed in claim 6, wherein the scraping mechanism (4) comprises two scrapers, namely a first scraper (42) and a second scraper (43), and the first scraper (42) and the second scraper (43) sequentially pass through the paste material to scrape the surface of the paste material under the driving of a driving motor.
9. An extrusion-feed paste spreading device and a 3D printer thereof according to claim 8, wherein the first blade (42) has a smaller scraping depth than the second blade (43).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120859586.2U CN215319333U (en) | 2021-04-25 | 2021-04-25 | Extrusion walking line type paste spreading device and 3D printer thereof |
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| CN202120859586.2U CN215319333U (en) | 2021-04-25 | 2021-04-25 | Extrusion walking line type paste spreading device and 3D printer thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115071127A (en) * | 2022-06-01 | 2022-09-20 | 苏州大学 | High-precision 3D printing equipment and printing method for viscoelastic paste material |
| WO2023231762A1 (en) * | 2022-06-01 | 2023-12-07 | 苏州大学 | High-precision 3d printing device and printing method for viscoelastic paste material |
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2021
- 2021-04-25 CN CN202120859586.2U patent/CN215319333U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115071127A (en) * | 2022-06-01 | 2022-09-20 | 苏州大学 | High-precision 3D printing equipment and printing method for viscoelastic paste material |
| WO2023231762A1 (en) * | 2022-06-01 | 2023-12-07 | 苏州大学 | High-precision 3d printing device and printing method for viscoelastic paste material |
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