3D printing two-way powder spreading device and 3D printer

Abstract

The utility model belongs to the technical field of metal 3D printing, and discloses a 3D printing two-way powder spreading device and a 3D printer, which comprise a powder receiving box, a powder spreading box body, an inserting plate and a driving assembly. A powder receiving groove used for receiving powder for 3D printing is formed in the powder receiving box, the powder laying box body is arranged on the working plane and fixedly arranged on the bottom side of the powder receiving box, and two first strip-shaped grooves penetrating in the vertical direction are formed in the powder laying box body. An inserting groove extending in the horizontal direction is further formed in the powder laying box body, and each first strip-shaped groove communicates with the inserting groove; the inserting plate is inserted into the inserting groove in the horizontal direction in a position-adjustable mode, a second strip-shaped groove penetrating through the inserting plate in the vertical direction is formed in the inserting plate, and the driving assembly is fixedly arranged on the powder laying box body. Under the driving of the driving assembly, the inserting plate moves in the inserting groove in the horizontal direction so as to drive the second strip-shaped groove to communicate with the two first strip-shaped grooves in sequence, so that powder falls to the working plane through the two first strip-shaped grooves, two-way powder laying on the working plane is achieved, and the printing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal 3D printing, in particular to a 3D printing two-way powder spreading device and a 3D printer. Background Art

[0002] Metal printing has broad application prospects in the fields of manufacturing, aerospace, medical treatment, automobiles, etc., and can realize the manufacturing of complex structures and personalized production. In the powder spreading structure of metal 3D printing equipment, most of them adopt the single-side powder feeding method, and the powder spreading efficiency can directly affect the printing efficiency.

[0003] However, the two-way powder feeding devices disclosed in the prior art have complex structures, relatively large overall dimensions, complex assembly, and high manufacturing costs, and are not suitable for large-scale applications. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a 3D printing two-way powder spreading device and a 3D printer. The device can realize two-way powder spreading, which is beneficial to improving the operation efficiency of the printer; at the same time, the structure is simple, the assembly is convenient, and the manufacturing cost is low.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] On the one hand, a 3D printing two-way powder spreading device is provided, including:

[0007] A powder receiving box, on which a powder receiving groove is opened, and the powder receiving groove is used for receiving the powder for 3D printing;

[0008] A powder spreading box body, which is disposed on a working plane and fixed to the bottom side of the powder receiving box. Two first strip-shaped grooves are opened on the powder spreading box body, and the first strip-shaped grooves penetrate vertically and are both communicated with the powder receiving groove; a slot is also opened on the powder spreading box body, and the slot penetrates horizontally and is communicated with the first strip-shaped groove;

[0009] An insertion plate, which is inserted into the slot in a horizontally position-adjustable manner, and a second strip-shaped groove penetrating vertically is opened on the insertion plate;

[0010] A driving assembly, which is fixed to the powder spreading box body and can drive the insertion plate to move horizontally, so that the second strip-shaped groove is communicated with any one of the first strip-shaped grooves, so that the powder in the powder receiving groove falls onto the working plane.

[0011] As an optional scheme of the 3D printing two-way powder spreading device, a receiving groove is further opened on the powder spreading box body, the receiving groove is communicated with the slot, and the driving assembly is arranged in the receiving groove.

[0012] As an optional solution for the 3D printing bidirectional powder spreading device, two fixing rods are convexly provided on the bottom side of the plug plate, and the fixing rods extend into the containing groove;

[0013] The driving assembly can abut against any of the fixing rods to push the plugging plate to move along the horizontal direction.

[0014] As an optional solution for the 3D printing two-way powder spreading device, the driving assembly includes a driving mechanism, a rotating rod and a toggle member;

[0015] The driving mechanism is arranged in the accommodating groove, the rotating rod is arranged at the output end of the driving mechanism, the shifting member is sleeved on the rotating rod and is located between the two fixed rods; under the drive of the driving mechanism, the rotating rod can rotate around its own axis.

[0016] As an optional solution for the 3D printing bidirectional powder spreading device, the toggle member is an irregular ellipse.

[0017] As an optional solution for the 3D printing bidirectional powder spreading device, the driving mechanism is detachably connected to the side wall of the accommodating groove.

[0018] As an optional solution for the 3D printing bidirectional powder spreading device, two driving assemblies are provided, and the two driving assemblies are spaced apart and arranged at both ends of the powder spreading box.

[0019] As an optional solution for the 3D printing two-way powder spreading device, a handle is protruding from the outer side of the plug plate.

[0020] On the other hand, a 3D printer is provided, comprising the above-mentioned 3D printing bidirectional powder spreading device.

[0021] Beneficial effects of the utility model:

[0022] The utility model provides a 3D printing two-way powder spreading device, including a powder receiving box, a powder spreading box body, a plug plate and a driving assembly. The powder receiving box is provided with a powder receiving slot, which can receive powder for 3D printing; the powder spreading box body is arranged on the working plane and fixedly arranged on the bottom side of the powder receiving box, and the powder spreading box body is provided with two first strip grooves, both of which are connected in the vertical direction and are connected to the powder receiving slot. The powder spreading box body is also provided with a slot extending in the horizontal direction, and each first strip groove is connected to the slot; the plug plate is inserted into the slot in an adjustable position in the horizontal direction, and a second strip groove is provided on the plug plate that is connected in the vertical direction, and the driving assembly is fixedly arranged on the powder spreading box body. Driven by the driving assembly, the plug plate moves in the slot in the horizontal direction to drive the second strip groove to connect with the two first strip grooves in sequence, so that the powder falls to the working plane through the two first strip grooves respectively, so as to realize two-way powder spreading on the working plane and improve printing efficiency. At the same time, the device has a simple structure, is easy to assemble, and has good economy. Brief Description of the Drawings

[0023] Figure 1 is an overall schematic diagram of the 3D printing bidirectional powder spreading device provided by the specific embodiment of the present utility model;

[0024] Figure 2 is an exploded view of the 3D printing bidirectional powder spreading device provided by the specific embodiment of the present utility model;

[0025] Figure 3 is a schematic diagram of the powder spreading box body provided by the specific embodiment of the present utility model.

[0026] In the figure:

[0027] 1. Powder receiving box; 11. Powder receiving groove;

[0028] 2. Powder spreading box body; 21. First strip-shaped groove; 22. Slot; 23. Accommodating groove;

[0029] 3. Insertion plate; 31. Second strip-shaped groove; 32. Fixed rod;

[0030] 4. Driving assembly; 41. Driving mechanism; 42. Rotating rod; 43. Poking member. Specific Embodiment

[0031] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only parts related to the present utility model are shown in the drawings, rather than all the structures.

[0032] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0034] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] The technical solution of the present utility model will be further described below in conjunction with the drawings and through specific embodiments.

[0036] As Figures 1 to 3 shown, this embodiment provides a 3D printing bidirectional powder spreading device, which includes a powder receiving box 1, a powder spreading box body 2, an insertion plate 3 and a driving assembly 4. A powder receiving groove 11 is formed on the powder receiving box 1, which can receive the powder for 3D printing; the powder spreading box body 2 is arranged on the working plane and fixed on the bottom side of the powder receiving box 1. Two first strip-shaped grooves 21 are formed on the powder spreading box body 2, and both of the two first strip-shaped grooves 21 penetrate along the vertical direction and are communicated with the powder receiving groove 11. A slot 22 extending in the horizontal direction is further formed on the powder spreading box body 2, and each first strip-shaped groove 21 is communicated with the slot 22; the insertion plate 3 is inserted into the slot 22 in a horizontally position-adjustable manner, and a second strip-shaped groove 31 penetrating along the vertical direction is formed on the insertion plate 3, and the driving assembly 4 is fixed on the powder spreading box body 2. Driven by the driving assembly 4, the insertion plate 3 moves horizontally in the slot 22 to drive the second strip-shaped groove 31 to be communicated with the two first strip-shaped grooves 21 in sequence, so that the powder falls onto the working plane through the two first strip-shaped grooves 21 respectively, thereby realizing the bidirectional powder spreading on the working plane and improving the printing efficiency. At the same time, the device has a simple structure, is convenient for assembly, and has good economy.

[0037] Optionally, as Figure 2 and Figure 3 shown, a receiving groove 23 is further formed on the powder spreading box body 2, the receiving groove 23 is communicated with the slot 22, and the driving assembly 4 is arranged in the receiving groove 23 to improve the overall structural compactness of the device and make rational use of space.

[0038] Further, continue to refer to Figure 2 Two fixing rods 32 are convexly provided on the bottom side of the insert plate 3, and the fixing rods 32 extend into the accommodating groove 23. The driving assembly 4 can abut against any fixing rod 32, and by pushing the insert plate 3 to move in the horizontal direction, the second strip groove 31 is driven to communicate with any first strip groove 21, so as to realize two-way powder spreading on the working plane.

[0039] Furthermore, if Figure 2 As shown, the driving assembly 4 includes a driving mechanism 41, a rotating rod 42 and a toggle member 43. The driving mechanism 41 is disposed in the receiving groove 23, the rotating rod 42 is disposed at the output end of the driving mechanism 41, and the toggle member 43 is sleeved on the rotating rod 42 and is located between the two fixed rods 32. Driven by the driving mechanism 41, the rotating rod 42 can rotate around its own axis, thereby driving the toggle member 43 to rotate. The toggle member 43 is pushed against the fixed rod 32 to realize the movement of the plugboard 3 in the horizontal direction, which can ensure the movement of the plugboard 3 in the horizontal direction, and at the same time, the stability of the plugboard 3 during the movement process can also be improved.

[0040] Optionally, the toggle member 43 is an irregular oval. The above arrangement can ensure that the toggle member 43 can push the fixed rod 32 to move, thereby ensuring the smooth movement of the plugboard 3.

[0041] Alternatively, if Figure 2 As shown, the drive mechanism 41 is detachably connected to the side wall of the receiving groove 23, so as to facilitate the later maintenance and replacement of the drive mechanism 41. Specifically, in this embodiment, the drive mechanism 41 is provided with a plurality of fasteners, and correspondingly, a plurality of threaded holes are opened on the inner wall of the receiving groove 23, and the plurality of fasteners are screwed into the plurality of threaded holes one by one.

[0042] Exemplarily, the driving mechanism 41 is a motor commonly used in the art; the fasteners are bolts or screws commonly used in the art.

[0043] Optionally, two drive assemblies 4 are provided, and the two drive assemblies 4 are spaced apart at both ends of the powder spreading box body 2, and the two drive assemblies 4 can simultaneously drive the plug board 3 to move in the horizontal direction. The above arrangement can further improve the stability of the plug board 3 during movement.

[0044] Optionally, a handle (not shown) is protruding from the outer side of the plug board 3 to facilitate operators to take the plug board 3 and facilitate assembly operations of the device.

[0045] On the other hand, this embodiment also provides a 3D printer, including the above-mentioned 3D printing two-way powder spreading device, which has all the beneficial effects of the above-mentioned 3D printing two-way powder spreading device, and will not be described in detail here.

[0046] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A 3D printing two-way powder spreading device, characterized in that: include: A powder receiving box (1), wherein the powder receiving box (1) is provided with a powder receiving groove (11), and the powder receiving groove (11) is used to receive powder for 3D printing; The powder spreading box body (2) is arranged on a working plane and fixedly arranged on the bottom side of the powder receiving box (1). The powder spreading box body (2) is provided with two first strip grooves (21), the first strip grooves (21) are connected in a vertical direction and are both connected to the powder receiving groove (11); the powder spreading box body (2) is also provided with a slot (22), the slot (22) is connected in a horizontal direction and is connected to the first strip groove (21); An inserting plate (3) is inserted into the slot (22) in an adjustable manner along the horizontal direction, and a second strip-shaped groove (31) is formed on the inserting plate (3) and passes through the slot (22) along the vertical direction; The driving assembly (4) is fixedly mounted on the powder spreading box body (2), and is capable of driving the plug plate (3) to move along the horizontal direction, so that the second strip groove (31) is connected with any of the first strip grooves (21), so that the powder in the powder receiving groove (11) falls onto the working plane.

2. The 3D printing bidirectional powder spreading device according to claim 1, characterized in that: The powder spreading box body (2) is also provided with a receiving groove (23), the receiving groove (23) is communicated with the slot (22), and the driving assembly (4) is arranged in the receiving groove (23).

3. The 3D printing bidirectional powder spreading device according to claim 2, characterized in that: Two fixing rods (32) are protrudingly provided on the bottom side of the plug board (3), and the fixing rods (32) extend into the receiving groove (23); The driving assembly (4) can abut against any of the fixing rods (32) to push the plugging plate (3) to move along the horizontal direction.

4. The 3D printing bidirectional powder spreading device according to claim 3, characterized in that: The driving assembly (4) comprises a driving mechanism (41), a rotating rod (42) and a toggle member (43); The driving mechanism (41) is arranged in the accommodating groove (23), the rotating rod (42) is arranged at the output end of the driving mechanism (41), and the shifting member (43) is sleeved on the rotating rod (42) and located between the two fixed rods (32); under the drive of the driving mechanism (41), the rotating rod (42) can rotate around its own axis direction.

5. The 3D printing bidirectional powder spreading device according to claim 4, characterized in that: The toggle member (43) is an irregular ellipse.

6. The 3D printing bidirectional powder spreading device according to claim 4, characterized in that: The driving mechanism (41) is detachably connected to the side wall of the accommodating groove (23).

7. The 3D printing bidirectional powder spreading device according to any one of claims 1 to 6, characterized in that: Two driving assemblies (4) are provided, and the two driving assemblies (4) are arranged at intervals at the two ends of the powder spreading box body (2).

8. The 3D printing bidirectional powder spreading device according to any one of claims 1 to 6, characterized in that: A handle is protrudingly provided on the outer side of the plug board (3).

9. A 3D printer, characterized in that: It comprises a 3D printing bidirectional powder spreading device as described in any one of claims 1-8.

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