CN211641004U

CN211641004U - Printing platform and three-dimensional printer

Info

Publication number: CN211641004U
Application number: CN202020101783.3U
Authority: CN
Inventors: 冯玉林; 付涛; 仁世伟; 邓伟平
Original assignee: Shenzhen Ruifeng Technology Co ltd
Current assignee: Shenzhen Ruifeng Technology Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-10-09
Anticipated expiration: 2030-01-17

Abstract

The utility model provides a print platform and three-dimensional inkjet printer. The printing platform comprises a flat plate and a supporting arm, wherein the flat plate is used for bearing a molded product; the support arm comprises a first arm and a second arm which are of an integrated structure, the first arm is used for being connected with a fixing plate of the three-dimensional printer in a sliding mode, and the second arm supports the flat plate. The utility model discloses a support arm's intensity is high, can guarantee print platform's horizontality to improve the yields of three-dimensional printing.

Description

Printing platform and three-dimensional printer

Technical Field

The utility model relates to a three-dimensional inkjet printer's technical field especially relates to a print platform and three-dimensional inkjet printer.

Background

Three-dimensional printing is a technique of constructing an object by printing layer by layer using an adhesive material such as powdered metal, plastic, or photocurable resin on the basis of a digital model file.

The three-dimensional photo-curing forming method is an important branch of a three-dimensional printing technology, and comprises the steps of irradiating the surface of liquid photosensitive resin by utilizing laser with specific wavelength and intensity to cure a layer of resin in a specific area on the surface, descending a lifting platform for a certain distance after one layer of resin is cured, uniformly covering a layer of liquid resin on the cured layer by a coating scraper, irradiating and curing the next layer of resin by utilizing the laser, and repeating the steps to finally obtain a three-dimensional workpiece formed by stacking layers.

Therefore, the levelness of the printing platform influences the yield of the three-dimensional printer, especially, a plurality of products are printed at the same time, and when the printing platform is large, the two ends of the printing platform are enabled to have large height difference when the printing platform is inclined at a small angle.

SUMMERY OF THE UTILITY MODEL

The utility model provides a print platform and three-dimensional inkjet printer to solve current print platform's unstable technical problem of horizontality.

The utility model provides a printing platform, which comprises a flat plate and a supporting arm, wherein the flat plate is used for bearing a molded product; the support arm comprises a first arm and a second arm which are of an integrated structure, the first arm is used for being connected with a fixing plate of the three-dimensional printer in a sliding mode, and the second arm supports the flat plate.

Optionally, the plate comprises a forming surface and a supporting surface which are arranged oppositely, the forming surface is used for bearing the formed product, and the supporting surface is connected with the second arm.

Optionally, the first arm comprises a front face and a rear face arranged oppositely, the rear face is connected with the fixing plate in a sliding mode, and the distance between the front face and the rear face gradually increases in the direction towards the second arm.

Optionally, the front face comprises a first front sub-face and a second front sub-face connected to each other, the second front sub-face being connected to the second arm, the first front sub-face and the rear face increasing in distance in a direction towards the second arm, the second front sub-face and the rear face being constant in distance.

Optionally, the rear face is recessed towards the front face to form an avoidance groove.

Optionally, the second arm comprises a top surface and a bottom surface arranged opposite to each other, the top surface being connected to the plate, the distance between the bottom surface and the top surface decreasing in a direction towards the plate.

Optionally, an end of the second arm distal from the first arm is recessed relative to an end of the plate distal from the first arm.

Optionally, the support arm is a plurality of support arms each supporting a plate.

Optionally, the printing platform further comprises a connecting rod, and the connecting rod is connected with the plurality of supporting arms respectively.

The utility model provides a three-dimensional printer, this three-dimensional printer include fixed plate, silo and above-mentioned arbitrary print platform, and the silo is connected with the fixed plate, and the silo is used for holding source liquid, and print platform is connected with the fixed plate, and print platform is used for bearing the shaping product.

The utility model has the advantages as follows:

the utility model discloses a print platform includes: the flat plate is used for bearing a molded product; the support arm comprises a first arm and a second arm which are of an integrated structure, the first arm is used for being connected with a fixing plate of the three-dimensional printer in a sliding mode, and the second arm supports the flat plate. In this embodiment, the support arm is structure as an organic whole, and structural wholeness and intensity are higher, and in addition, the first arm and the second arm of support arm do not pass through other part connections, consequently can avoid the first arm and the second arm of support arm to produce not hard up at gliding process, and make the phenomenon that the flat board inclines appear, have guaranteed the horizontality of flat board.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a three-dimensional printer provided by the present invention;

fig. 2 is a schematic structural diagram of an embodiment of a printing platform provided by the present invention;

fig. 3 is a schematic structural diagram of an embodiment of a support arm provided by the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of an embodiment of a three-dimensional printer 100 provided by the present invention, fig. 2 is a schematic structural diagram of an embodiment of a printing platform 10 provided by the present invention, and fig. 3 is a schematic structural diagram of an embodiment of a supporting arm 14 provided by the present invention.

The utility model discloses a three-dimensional printer 100 is used for implementing three-dimensional printing technique, and three-dimensional printing technique is blue book with computer three-dimensional design model, through software layering dispersion and numerical control molding system, utilizes modes such as laser beam, hot melt nozzle to carry out the successive layer with special materials such as metal powder, ceramic powder, plastics, cell tissue and piles up cohering, and final stack shaping produces the emerging manufacturing technology of entity product. Different from the traditional manufacturing industry in which the raw materials are shaped and cut in a machining mode such as a die and a turn-milling mode to finally produce finished products, the three-dimensional printing technology changes a three-dimensional entity into a plurality of two-dimensional planes, and the materials are processed and overlapped layer by layer to produce, so that the manufacturing complexity is greatly reduced. Therefore, the digital manufacturing mode has the natural advantages of simple process, low customization cost, short production period and the like, and can be extended to a wider production crowd.

The utility model discloses a three-dimensional printer 100 can include fixed plate 20, silo 30 and print platform 10.

The fixing plate 20 is an integral frame of the three-dimensional printer 100; the trough 30 is connected with the fixing plate 20, and the trough 30 is used for containing source liquid; the printing platform 10 is slidably connected to the fixing plate 20, and the printing platform 10 is used for carrying the molded part. The light machine of the three-dimensional printer 100 emits laser beams to irradiate the source liquid, and the source liquid is solidified and molded on the printing platform 10.

The printing platform 10 includes: a plate 12 and a support arm 14, the plate 12 being for carrying a shaped product; the support arm 14 includes a first arm 142 and a second arm 144 of a unitary structure, the first arm 142 being adapted to slidably couple with the mounting plate 20 of the three-dimensional printer 100, and the second arm 144 supporting the platen 12. In the embodiment, the supporting arm 14 is an integral structure, the structural integrity and the strength are higher, and in addition, the first arm 142 and the second arm 144 of the supporting arm 14 are not connected through other parts, so that the phenomenon that the flat plate 12 is inclined due to the looseness generated in the sliding process of the first arm 142 and the second arm 144 of the supporting arm 14 can be avoided, and the horizontality of the flat plate 12 is ensured.

The plate 12 includes a forming surface 122 and a supporting surface 124, which are oppositely disposed, the forming surface 122 is used for carrying the formed product, and the supporting surface 124 is connected with the second arm 144, so that the second arm 144 is supported from the lower side of the plate 12, and the stability of the plate 12 is improved.

Specifically, the first arm 142 includes a front surface 1421 and a rear surface 1422 disposed opposite to each other, the rear surface 1422 is slidably connected to the fixed plate 20, and the distance between the front surface 1421 and the rear surface 1422 is gradually increased toward the second arm 144, so that the distance between the connection surface of the support arm 14 and the fixed plate 20 and the center of gravity of the first arm 142 is closer, thereby further stabilizing the first arm 142.

Further, the front surface 1421 includes a first front sub-surface 1423 and a second front sub-surface 1424 connected to each other, the second front sub-surface 1424 is connected to the second arm 144, the distance between the first front sub-surface 1423 and the rear sub-surface 1422 is gradually increased in the direction toward the second arm 144, and the distance between the second front sub-surface 1424 and the rear sub-surface 1422 is not changed, so that the included angle between the first arm 142 and the second arm 144 is reduced relative to the supporting arm 14 of the previous embodiment, so that the stress is not completely concentrated at the connection position of the first arm 142 and the second arm 144, and the risk of deformation of the supporting arm 14 is reduced.

Further, the rear surface 1422 is recessed toward the front surface 1421 to form an avoidance groove 1425, and the avoidance groove 1425 is used for avoiding the rest of the parts from the first arm 142 during the movement process, so as to prevent the first arm 142 from colliding with other parts.

Specifically, the second arm 144 includes a top surface 1442 and a bottom surface 1444 disposed opposite to each other, the top surface 1442 is connected to the plate 12, and the distance between the bottom surface 1444 and the top surface 1442 is gradually decreased toward the plate 12, so that the distance between the connecting surface of the support arm 14 and the fixing plate 20 and the center of gravity of the second arm 144 is closer, and thus the second arm 144 is more stable.

Alternatively, the end of the second arm 144 remote from the first arm 142 is recessed relative to the end of the plate 12 remote from the first arm 142, i.e., the length of the second arm 144 is shorter than the length of the plate 12. It will be appreciated that the longer the second arm 144, the better the support for the platform 12, but this will result in the centre of gravity of the second arm 144 being further from the fixed plate 20, which is detrimental to the overall stability of the printing platform 10. In this embodiment, the second arm 144 is downwardly sunk relative to the platform 12, and the center of gravity of the second arm 144 is closer to the fixed plate 20 while ensuring that the second arm 144 is sufficiently supported on the platform 12.

Optionally, the support arm 14 is multiple, and the multiple support arms 14 each support the plate 12 to share the pressure experienced by the single support arm 14, reducing the strength requirements of the single support arm 14. In fig. 2, the number of the support arms 14 is two.

Further, the printing platform 10 further includes a connecting rod 16, and the connecting rod 16 is respectively connected with the plurality of supporting arms 14 to integrally connect the plurality of supporting arms 14.

The plate 12 is provided with a plurality of through holes, the area of the plate 12 provided with the through holes is used for bearing the formed parts, and the through holes allow the source liquid to flow so as to reduce the impact force of the plate 12 on the source liquid in the trough 30.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A printing platform, comprising:

a flat plate for carrying a molded product;

the supporting arm comprises a first arm and a second arm which are of an integrated structure, the first arm is used for being connected with a fixing plate of the three-dimensional printer in a sliding mode, and the second arm supports the flat plate.

2. The printing platform of claim 1, wherein the plate includes a forming surface and a support surface disposed opposite to each other, the forming surface being configured to carry a formed product, the support surface being connected to the second arm.

3. A printing platform according to claim 1, wherein the first arm comprises oppositely disposed front and rear faces, the rear face being slidably connected to the fixing plate, the front and rear faces being progressively spaced in a direction towards the second arm.

4. A printing platform according to claim 3, wherein the front face comprises a first front sub-face and a second front sub-face connected to each other, the second front sub-face being connected to the second arm, the spacing between the first front sub-face and the rear face increasing in a direction towards the second arm, the spacing between the second front sub-face and the rear face being constant.

5. A printing platform according to claim 3, wherein the rear face is recessed towards the front face to form an escape slot.

6. The printing platform of claim 1, wherein said second arm includes oppositely disposed top and bottom surfaces, said top surface being connected to said plate, said bottom and top surfaces being spaced apart at a distance that decreases in a direction toward said plate.

7. The printing platform of claim 1, wherein an end of the second arm distal from the first arm is recessed relative to an end of the plate distal from the first arm.

8. The printing platform of claim 1, wherein said support arm is a plurality of support arms each supporting said plate.

9. The printing platform of claim 8, further comprising a connecting bar coupled to the plurality of support arms, respectively.

10. A three-dimensional printer, characterized in that it comprises: a stationary plate, a trough connected to the stationary plate, the trough for holding a source liquid, and the printing platform of any one of claims 1 to 9, connected to the stationary plate, the printing platform for carrying a molded product.