Feed liquid recovery device and 3D printer

Abstract

The utility model relates to the technical field of printers, and discloses a feed liquid recovery device and a 3D printer. The material liquid recovery device comprises a material receiving disc and a material pool, and the material receiving disc is provided with a material receiving groove; the material pool is used for bearing material liquid, the material pool is connected to the bottom of the material receiving groove, the side wall of the material receiving groove is annularly arranged on the material pool, the side wall of the material receiving groove defines an overflowing liquid collecting area, and the overflowing liquid collecting area can collect the material liquid overflowing from the material pool. Wherein the material pool is connected to the groove bottom of the material receiving groove, and in the process of adding the material liquid into the material pool, if the material liquid added into the material pool is too much, the material liquid overflowing from the material pool can flow to the overflowing liquid collecting area, so that the overflowing material liquid is prevented from flowing into the equipment to cause pollution and damage to precise mechanical parts and electronic elements; the working reliability of the 3D printer is improved; and moreover, during cleaning, only the material receiving disc needs to be cleaned, so that the cleaning difficulty is low, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, in particular to a liquid recovery device and a 3D printer. Background Art

[0002] A photocurable 3D printer is a 3D rapid prototyping device that uses printing liquid such as liquid photosensitive resin as raw material. In actual operation, photocurable 3D printers also face some challenges. Especially in the process of adding printing liquid, the common operation method is to manually pour the liquid photosensitive resin into the material pool of the equipment. This process requires high skills from the operator. Once a mistake occurs, such as pouring too much liquid, it is easy to cause the liquid to overflow from the material pool. In addition, the sampling process will cause the liquid to splash out of the material pool. During this process, the operator needs to take the printed sample out of the material pool. The excess resin will be attached to the sample. If the operation is not careful, the resin on the sample will flow out of the material pool. The overflowed liquid will not only pollute the equipment, but may also penetrate into the interior of the equipment and damage the precision mechanical parts and electronic components. In addition, cleaning up the overflowed liquid is also a time-consuming and laborious task, which not only affects production efficiency, but also increases production costs.

[0003] Based on this, there is an urgent need for a liquid recovery device and a 3D printer to solve the above-mentioned problems. Utility Model Content

[0004] Based on the above, the purpose of the utility model is to provide a liquid recovery device and a 3D printer to prevent overflowed liquid from flowing into the interior of the device, causing pollution and damage to precision mechanical parts and electronic components, thereby improving the working reliability of the 3D printer.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] On the one hand, a liquid recovery device is provided, comprising:

[0007] A material receiving tray, wherein the material receiving tray is provided with a material receiving trough;

[0008] A material pool, the material pool is used to carry the material liquid, the material pool is connected to the bottom of the material receiving trough, the side walls of the material receiving trough are arranged around the material pool, the side walls of the material receiving trough form an overflow collection area, and the overflow collection area can collect the material liquid overflowing from the material pool.

[0009] As a preferred technical solution of a liquid recovery device, the side wall of the material pool is provided with a plurality of first fixed bosses;

[0010] The bottom of the receiving trough is provided with a plurality of second fixing bosses, and the second fixing bosses are connected with the first fixing bosses in a one-to-one correspondence.

[0011] As a preferred technical solution for a liquid recovery device, the first fixed boss is connected to the second fixed boss by a clamp or fastener.

[0012] As a preferred technical solution of a liquid recovery device, a seal is provided between the first fixed boss and the second fixed boss.

[0013] As a preferred technical solution of a liquid recovery device, a gap is provided between the bottom of the material pool and the bottom of the material receiving trough.

[0014] As a preferred technical solution of the liquid recovery device, the liquid recovery device also includes a heating plate, and the heating plate is connected to the bottom of the material pool.

[0015] As a preferred technical solution of a liquid recovery device, the side wall of the receiving trough is rectangular, circular or elliptical; and / or,

[0016] The side wall of the receiving tray is provided with a handle.

[0017] As a preferred technical solution of a liquid recovery device, a plurality of limiting ribs are provided at the bottom of the receiving trough, and the material pool is installed between the plurality of limiting ribs.

[0018] As a preferred technical solution of a liquid recovery device, the side wall of the material pool is provided with an oleophobic layer; and / or the inner wall of the receiving tray is provided with an oleophobic layer.

[0019] As a preferred technical solution of the liquid recovery device, the bottom of the receiving trough is provided with a third fixed boss, and the third fixed boss is provided with a connecting hole, and the connecting hole is used to connect with an external device; and / or,

[0020] The bottom of the material receiving trough is provided with an oil drain hole, and a plug is detachably installed in the oil drain hole.

[0021] On the other hand, a 3D printer is provided, comprising a supporting platform and a material liquid recovery device as described in any of the above schemes, wherein a receiving tray is detachably connected to the supporting platform.

[0022] The beneficial effects of the utility model are:

[0023] The utility model provides a material liquid recovery device and a 3D printer, wherein a material pool is connected to the bottom of a material receiving tank, and in the process of adding material liquid to the material pool, if too much material liquid is added to the material pool, the material liquid overflowing from the material pool can flow to the overflow collection area, thereby preventing the overflowed material liquid from flowing into the interior of the equipment and causing pollution and damage to the precision mechanical parts and electronic components, thereby improving the working reliability of the 3D printer; moreover, when cleaning, it is only necessary to clean the docking material tray, the cleaning difficulty is low, and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0025] Figure 1 It is a structural schematic diagram of a liquid recovery device provided in a specific embodiment of the utility model;

[0026] Figure 2 It is a structural explosion diagram of a liquid recovery device provided in a specific implementation manner of the utility model.

[0027] The following are marked in the figure:

[0028] 1. Material receiving tray; 11. Material receiving trough; 12. Second fixed boss; 13. Limiting rib; 14. Third fixed boss; 141. Connecting hole; 15. Oil drain hole; 2. Material pool; 21. First fixed boss; 3. Heating plate; 4. Blockage. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0033] like Figure 1 and Figure 2 As shown, the present embodiment provides a liquid material recovery device, which includes a receiving tray 1 and a material pool 2, wherein the receiving tray 1 is provided with a receiving trough 11; the material pool 2 is used to carry the liquid material, and the material pool 2 is connected to the bottom of the receiving trough 11, and the side walls of the receiving trough 11 are arranged around the material pool 2, and the side walls of the receiving trough 11 form an overflow collection area, which can collect the liquid material overflowing from the material pool 2. Among them, the material pool 2 is connected to the bottom of the receiving trough 11, and in the process of adding the liquid material to the material pool 2, if too much liquid material is added to the material pool 2 or there is excess liquid material splashing out during sampling, the liquid material overflowing from the material pool 2 can flow to the overflow collection area, thereby preventing the overflowed liquid material from flowing into the interior of the equipment, causing pollution and damage to the precision mechanical parts and electronic components, and improving the working reliability of the 3D printer; moreover, when cleaning, it is only necessary to clean the connecting tray 1, which is easy to clean and improves production efficiency.

[0034] Specifically, the side wall of the material pool 2 is provided with a plurality of first fixed bosses 21; the bottom of the material receiving trough 11 is provided with a plurality of second fixed bosses 12, and the second fixed bosses 12 are connected to the first fixed bosses 21 in a one-to-one correspondence. Since the top surface of the second fixed bosses 12 is higher than the bottom of the material receiving trough 11, the material liquid flowing into the overflow collection area will not flow to the connection position between the first fixed bosses 21 and the second fixed bosses 12, thereby reducing the difficulty of cleaning. In this embodiment, there are four first fixed bosses 21, and the four first fixed bosses 21 are located at the four corners of the material pool 2, thereby improving the installation stability of the material pool 2.

[0035] Preferably, the first fixing boss 21 is snap-fitted or fastened to the second fixing boss 12. In this embodiment, the first fixing boss 21 is connected to the second fixing boss 12 by a fastener, the fastener is a screw, the first fixing boss 21 is provided with a first through hole, the second fixing boss 12 is provided with a first threaded hole, the screw is passed through the first through hole and threadedly connected to the first threaded hole, so that the first fixing boss 21 and the second fixing boss 12 are detachably connected.

[0036] Further preferably, a seal is provided between the first fixed boss 21 and the second fixed boss 12. In this embodiment, the seal is a sealing ring, which is arranged around the circumference of the connecting position of the first fixed boss 21 and the second fixed boss 12 to prevent the overflowed liquid in the material pool 2 from entering the gap between the first fixed boss 21 and the second fixed boss 12 and increasing the cleaning workload.

[0037] Preferably, a gap is provided between the bottom of the material pool 2 and the bottom of the material receiving trough 11. After the first fixed boss 21 overlaps the second fixed boss 12, the bottom of the material pool 2 is suspended above the bottom of the material receiving trough 11, so that the bottom of the material pool 2 does not contact the liquid flowing into the material receiving trough 11, reducing the workload of cleaning.

[0038] Furthermore, the liquid recovery device further includes a heating plate 3, which is connected to the bottom of the pool 2. The heating plate 3 is used to heat the liquid in the pool 2 to meet production needs. When the liquid overflows from the pool 2, the liquid flows into the receiving trough 11 through the side wall of the pool 2. The heating plate 3 arranged at the bottom of the pool 2 will not be corroded by the liquid, thereby improving the service life of the heating plate 3. Of course, in other embodiments, the heating plate 3 can also be arranged on the side wall of the pool 2.

[0039] In order to facilitate the installation of the material pool 2, a plurality of limiting ribs 13 are provided at the bottom of the material receiving trough 11, and the material pool 2 is installed between the plurality of limiting ribs 13. During assembly, the material pool 2 is installed between the plurality of limiting ribs 13, so that the material pool 2 is pre-positioned. At this time, the first through hole of the first fixed boss 21 is arranged opposite to the first threaded hole of the second fixed boss 12, so that the assembly convenience and efficiency of the material pool 2 are improved, and the assembly accuracy of the material pool 2 is improved. In this embodiment, part of the limiting ribs 13 are L-shaped, and the side walls of the corners of the material pool 2 are attached to the inner walls of the limiting ribs 13; part of the limiting ribs 13 are flat plates, and the side walls of the material pool 2 are attached to the side of the limiting ribs 13 close to the material pool 2, so that the material pool 2 is limited.

[0040] Preferably, the side wall of the material pool 2 is provided with an oleophobic layer, and / or the inner wall of the receiving tray 1 is provided with an oleophobic layer, and when the overflowed material liquid flows through the outer wall of the material pool 2 and / or the inner wall of the receiving tray 1, it can be isolated by the oleophobic layer, thereby avoiding the contamination of the outer wall of the material pool 2 and / or the inner wall of the receiving tray 1, and reducing the difficulty of cleaning the material pool 2 and the receiving tray 1. The oleophobic layer can be an oleophobic and hydrophobic film layer.

[0041] Optionally, a handle (not shown) is provided on the side wall of the receiving tray 1 , and the handle is installed on the side wall of the receiving tray 1 to facilitate the user to take and place the receiving tray 1 .

[0042] Optionally, a third fixed boss 14 is provided at the bottom of the material receiving trough 11, and a connecting hole 141 is provided on the third fixed boss 14, and the connecting hole 141 is used to connect with an external device. The liquid recovery device can be fixed to the external device through the connecting hole 141. Among them, since the third fixed boss 14 is raised relative to the bottom of the material receiving trough 11, the liquid in the material receiving trough 11 will not immerse the third fixed boss 14, and thus the liquid will not contaminate the connecting hole 141.

[0043] Preferably, the bottom of the receiving trough 11 is provided with an oil drain hole 15, and a plug 4 is detachably installed in the oil drain hole 15. When the receiving trough 11 needs to be cleaned, the plug 4 is removed, and then the material liquid or cleaning medium in the receiving trough 11 can flow out through the oil drain hole 15, reducing the cleaning difficulty; after the receiving trough 11 is cleaned, the plug 4 is installed in the oil drain hole 15.

[0044] Preferably, the side wall of the receiving trough 11 is rectangular, circular or elliptical. In the present embodiment, the side wall of the receiving trough 11 is rectangular, and the side wall of the receiving trough 11 extends vertically upward to form a rectangular side wall, and an overflow collection area is formed between the rectangular side wall and the material pool 2, and the structure is simple. In other embodiments, the side wall of the receiving trough 11 is circular, and the inner diameter of the receiving trough 11 is greater than or equal to the maximum diagonal dimension of the material pool 2, and the side wall of the receiving trough 11 extends upward to form a cylindrical side wall, and an overflow collection area is formed between the cylindrical side wall and the material pool 2.

[0045] The present embodiment further provides a 3D printer, comprising a carrier platform and the above-mentioned liquid recovery device, wherein the receiving tray 1 is detachably connected to the carrier platform. In the present embodiment, a plurality of third fixed bosses 14 are provided at the bottom of the receiving trough 11, a plurality of second threaded holes corresponding to the connection holes 141 of the third fixed bosses 14 are provided on the carrier platform, and screws are passed through the connection holes 141 and threadedly connected to the second threaded holes, thereby realizing a detachable connection between the receiving tray 1 and the carrier platform.

[0046] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A liquid recovery device, characterized in that: include: A material receiving tray (1), wherein the material receiving tray (1) is provided with a material receiving trough (11); A material pool (2), the material pool (2) is used to carry material liquid, the material pool (2) is connected to the bottom of the material receiving trough (11), the side wall of the material receiving trough (11) is arranged around the material pool (2), and the side wall of the material receiving trough (11) forms an overflow collection area, and the overflow collection area can collect the material liquid overflowing from the material pool (2).

2. The liquid recovery device according to claim 1, characterized in that: The side wall of the material pool (2) is provided with a plurality of first fixing bosses (21); A plurality of second fixing bosses (12) are arranged at the bottom of the material receiving trough (11), and the second fixing bosses (12) are connected to the first fixing bosses (21) in a one-to-one correspondence.

3. The liquid recovery device according to claim 2, characterized in that: The first fixing boss (21) and the second fixing boss (12) are connected by snap-fitting or fastening.

4. The liquid recovery device according to claim 2, characterized in that: A sealing member is provided between the first fixing boss (21) and the second fixing boss (12).

5. The liquid recovery device according to claim 1, characterized in that: A gap is provided between the bottom of the material pool (2) and the bottom of the material receiving trough (11).

6. The liquid recovery device according to claim 5, characterized in that: The liquid recovery device further comprises a heating plate (3), wherein the heating plate (3) is connected to the bottom of the material pool (2).

7. The liquid recovery device according to claim 1, characterized in that: The side wall shape of the receiving trough (11) is rectangular, circular or elliptical; and / or, The side wall of the receiving tray (1) is provided with a handle.

8. The liquid recovery device according to claim 1, characterized in that: The bottom of the material receiving trough (11) is provided with a plurality of limiting ribs (13), and the material pool (2) is installed between the plurality of limiting ribs (13).

9. The liquid recovery device according to claim 1, characterized in that: The side wall of the material pool (2) is provided with an oleophobic layer; and / or the inner wall of the material receiving tray (1) is provided with an oleophobic layer.

10. The liquid recovery device according to any one of claims 1 to 9, characterized in that: The bottom of the receiving trough (11) is provided with a third fixing boss (14), and the third fixing boss (14) is provided with a connecting hole (141), and the connecting hole (141) is used for connecting with an external device; and / or, The bottom of the material receiving trough (11) is provided with an oil drain hole (15), and a plug (4) is detachably installed in the oil drain hole (15).

11. A 3D printer, characterized in that: It comprises a carrying platform and a liquid recovery device as claimed in any one of claims 1 to 10, wherein the receiving tray (1) is detachably connected to the carrying platform.

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