一种粉料搅拌组件和打印机
By employing a powder mixing assembly that includes a main body, a check valve, a biasing component, and a rotating component in the 3D powder spreader, the problem of uneven powder mixing is solved, achieving thorough mixing and precise delivery of the powder, thus improving printing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN HANIN CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-17
AI Technical Summary
In existing 3D powder-spreading printers, when the rotating part only stirs the powder by repeatedly oscillating, the edge of the powder chamber is difficult to participate in the stirring, resulting in uneven stirring.
The powder mixing assembly includes a main body, a check valve, a biasing element, and a rotating element. The rotating element rotates 360 degrees in the positive direction to fully mix the powder. The check valve moves between the yielding position and the check position through the check surface and the relief surface. The biasing element provides energy storage and reset functions. The control element ensures the precise movement of the rotating element. Combined with the mixing blades and the lifting blades, the powder is uniformly mixed and conveyed.
It achieves thorough mixing of powder, avoids residue in dead corners, improves mixing efficiency, reduces losses caused by powder blockage, ensures precise positioning and movement of rotating parts, and improves printing efficiency.
Smart Images
Figure CN224510433U_ABST
Abstract
Claims
1. A powder mixing assembly, characterized by: include The body (1) has a stirring chamber (12) and a mounting part (13) located outside the stirring chamber (12), the stirring chamber (12) extending along a first direction (91) and adapted to receive powder; A check valve (2) is provided with a check surface (21) and a clearance surface (22), which is installed on the mounting part (13) and adapted to move between the clearance position and the check position; The biasing member (3) acts on the mounting part (13) and the check member (2) respectively at both ends, and stores energy when the check member (2) moves from the check position to the yield position, and releases energy to make the check member (2) move from the yield position to the check position; A rotating member (4) is rotatably connected to the body (1) about a first axis extending parallel to a first direction (91), and is adapted to rotate 360 degrees in the positive direction and in the reverse direction to stir or lift powder. It is provided with a positioning part (43) located outside the stirring chamber (12). When the positioning part (43) rotates in the positive direction, it is adapted to push against the relief surface (22) to make the check member (2) move from the check position to the relief position. When it rotates in the reverse direction, it is adapted to abut against the check surface (21) to be located in the positioning position. A driving element (5) is adapted to drive the rotating element (4) to rotate.
2. A powder mixing assembly as claimed in claim 1, wherein: It also includes a control component; the control component is adapted to control the operation of the drive component (5), and when the rotating component (4) is detected to be in the positioning position, the drive component (5) controls the drive component (5) to drive the rotating component (4) to rotate in the positive direction to the material laying position.
3. A powder mixing assembly as claimed in claim 1, wherein: The check valve (2) is rotatably or slidably connected to the mounting part (13).
4. A powder mixing assembly as claimed in claim 1, wherein: The rotating component (4) includes a stirring blade (41) and a lifting blade (42). The stirring blade (41) is adapted to stir the powder in the stirring chamber (12), and the stirring blade (41) is inclined relative to the horizontal plane to be adapted to convey the powder in the stirring chamber (12) in at least one direction. The lifting blade (42) is adapted to carry the powder to the spreading position.
5. A powder mixing assembly as claimed in claim 4, wherein: It also includes a feeding mechanism (6) and a heating module. The main body (1) is also provided with a feed inlet (11). The feed inlet (11) is located at the center of the bottom of the mixing chamber (12) and communicates with the mixing chamber (12). The mixing blade (41) includes a first blade (411) and a second blade (412). The first blade (411) and the second blade (412) are inclined in opposite directions. The transition between the first blade (411) and the second blade (412) is located at the feed inlet (11). The discharge end of the feeding mechanism (6) is connected to the feed inlet (11) to facilitate the conveying of powder into the mixing chamber (12). The heating module is adapted to heat the mixing chamber (12).
6. A powder mixing assembly as claimed in claim 2, wherein: The controller determines that the rotating member (4) is in the positioning position by the change in current of the driving member (5) when the rotating member (4) rotates to the positioning position; or a trigger is installed on the check surface (21), and the trigger is triggered when the rotating member (4) rotates to the positioning position, and a signal suitable for the controller to receive is emitted, so that the controller detects that the rotating member (4) is in the positioning position.
7. A powder mixing assembly as claimed in claim 1, wherein: The biasing member (3) is an elastic member, or the biasing member (3) includes two magnetic members, which repel or attract each other. One magnetic member is installed in the mounting part (13), and the other is installed in the check member (2).
8. A powder mixing assembly as claimed in claim 1, wherein: The mounting part (13) is provided with a mounting cavity (131), and the body (1) is provided with a connecting hole (14). The connecting hole (14) extends along the first direction (91) and connects the mounting cavity (131) and the stirring cavity (12). The check valve (2) and the biasing member (3) are placed in the mounting cavity (131).
9. A printer characterized by: The assembly includes a forming platform (7), a spreading roller (8), and a powder mixing assembly as described in any one of claims 2-8, wherein the spreading roller (8) is adapted to move along a second direction (92) perpendicular to the first direction (91) and is adapted to push the powder on the rotating member (4) away from the powder mixing assembly when the rotating member (4) is in the spreading position; The number of powder mixing components is two, and they are symmetrically arranged at both ends of the forming platform (7). The spreading roller (8) is adapted to push the powder on the rotating part (4) of one powder mixing component onto the forming platform (7), and push the excess powder into the mixing chamber (12) of the other powder mixing component. The forming platform (7) is adapted to move relative to the powder mixing component in a vertical direction perpendicular to the first direction (91) and the second direction (92).
10. A printer as claimed in claim 9, wherein: The rotating component (4) also rotates to the material preparation position, which is located on the path from the positioning position to the material spreading position. The spreading roller (8) is adapted to move in the opposite direction of the spreading direction when the rotating component (4) is in the material preparation position, so as to push part of the powder on the rotating component (4) back into the mixing chamber (12).