Butt joint conveying structure and three-dimensional printing material management system

Abstract

The invention discloses a butt joint conveying structure and a three-dimensional printing material management system. The butt joint conveying structure comprises a container, a rotating part and a butt joint assembly. The container is provided with a containing cavity and a butt joint part with a receiving hole, the rotating piece is provided with a first butt joint hole and a first matching part, and the rotating piece rotates between a first position and a second position around a rotating axis relative to the butt joint part and is limited by the butt joint part in the direction of the rotating axis; the butt-joint assembly is provided with a conveying channel used for conveying materials and a second matching part which is connected with the first matching part in an inserted mode and forms rotation stopping matching, so that the butt-joint assembly drives the rotating piece to rotate, and when the rotating piece rotates to the first position, the rotating piece shields the receiving hole, and when the rotating piece rotates to the second position, the receiving hole shields the receiving hole. The conveying channel communicates with the containing cavity through the first butt joint hole and the receiving hole. The three-dimensional printing material management system comprises the butt joint conveying structure. By adopting the technical scheme, the phenomenon that the receiving hole cannot be tightly changed due to falling deformation of the top cover can be avoided.

Description

Technical Field

[0001] The present application relates to the field of material transportation, and in particular to a docking transportation structure and a three-dimensional printing material management system. Background Art

[0002] In the prior art, a 3D printing material management system includes a building unit, a docking piece, and a material management station. The building unit includes a container, a top cover, and a conveying mechanism. The container is used to contain powdered printing materials, and a top wall is provided on the top of the container, and a receiving hole is provided on the top wall. The top cover is covered on the receiving hole and forms a building platform together with the top wall. The conveying mechanism is used to convey the printing material in the container to the powder laying trough, so that the 3D printer can lay the printing material on the building platform to print and form a 3D printed part layer by layer. The docking piece is provided with a conveying channel, and the conveying channel is used to dock with the receiving hole when the top cover is removed from the top wall. The material management station is provided with a storage chamber and a feeding piece. The storage chamber is used to store materials and is connected to the conveying channel. The feeding piece is connected to the storage chamber and is used to convey the printing material to the conveying channel.

[0003] In the above technical solution, the top cover can be removed from the top wall, which often results in the top cover being deformed due to falling and unable to cover the receiving hole tightly, causing the printing material in the cavity to clump due to moisture. Summary of the invention

[0004] The purpose of the present application is to overcome the above-mentioned defects or problems existing in the background technology and to provide a docking conveying structure and a three-dimensional printing material management system, which can prevent the top cover from falling and deforming and being unable to cover the receiving hole tightly.

[0005] In order to achieve the above purpose, the following technical solutions are adopted:

[0006] The first technical scheme relates to a docking and conveying structure, which includes: a container, which is provided with a cavity and a docking part, the cavity is used to accommodate the material to be conveyed, and the docking part is provided with a receiving hole connected to the cavity; a rotating member, which is provided with a first docking hole and a first matching part; the rotating member rotates around the rotation axis between a first position and a second position relative to the docking part and is limited by the docking part along the rotation axis; and a docking assembly, which is provided with a second matching part of a conveying channel; the conveying channel is used to convey the material to the cavity; the second matching part is suitable for being plugged into the first matching part along the rotation axis and forming a stop fit, so that the docking assembly drives the rotating member to rotate; when the rotating member rotates to the first position, the rotating member covers the receiving hole; when the rotating member rotates to the second position, the conveying channel is connected to the cavity through the first docking hole and the receiving hole.

[0007] The second technical solution is based on the first technical solution, wherein the docking portion is provided with a first wall and a second wall perpendicular to the direction of the rotation axis; the first wall is provided with a socket for the second matching portion to be plugged into the first matching portion; the receiving hole is provided on the second wall; and the rotating member is limited between the first wall and the second wall along the direction of the rotation axis.

[0008] The third technical solution is based on the second technical solution, wherein the docking portion is further provided with a first rotation fitting portion and a rotation limiting portion between the first wall and the second wall; the rotating part is provided with a second rotation fitting portion; the first rotation fitting portion and the second rotation fitting portion are rotationally fitted; the rotation limiting portion protrudes radially inwardly from the first rotation fitting portion, and the second rotation fitting portion and the rotation limiting portion are limitedly fitted along the rotation direction of the rotating part, so that the rotating part rotates between the first position and the second position relative to the docking portion.

[0009] The fourth technical solution is based on the third technical solution, wherein the docking assembly is provided with an axial limiting portion; when the rotating member is in the first position, the docking assembly is suitable for connecting to or moving away from the rotating member along the direction of the rotation axis; when the rotating member is in the second position, the axial limiting portion is limited between the first wall and the second wall along the direction of the rotation axis.

[0010] The fifth technical solution is based on the fourth technical solution, wherein the docking assembly includes a docking piece and a flipping piece; the conveying channel and the axial limiting portion are arranged on the docking piece, and the flipping piece flips around the flipping axis relative to the docking piece to open and close the conveying channel; when the rotating piece rotates to the second position, the flipping piece is pushed against by the docking piece and flipped to open the conveying channel; when the rotating piece rotates away from the second position, the flipping piece is disengaged from the push-against-pull portion and flipped to close the conveying channel.

[0011] The sixth technical solution is based on the fifth technical solution, wherein the flip axis is perpendicular to the rotation axis.

[0012] The seventh technical solution is based on the sixth technical solution, wherein the first wall is provided with a supporting portion suitable for supporting the flip member; the flip member is provided with an abutting portion, a flap and a flip axis; the abutting portion extends out of the docking member along the flip axis and is suitable for being supported by the supporting portion; the flap is located in the docking member and is used to open and close the conveying channel; the flip axis extends along the flip axis and is fixedly connected to the abutting portion and the flap.

[0013] The eighth technical solution is based on any one of the second to seventh technical solutions, wherein the docking assembly is also provided with a distance sensor and a signal transmission component; the second wall is also provided with an observation hole; the rotating member is also provided with a second docking hole; the distance sensor is fixedly connected to the docking member and is located outside the conveying channel; when the rotating member is in the second position, the distance sensor measures the first distance between the material in the cavity and the distance sensor through the plug hole, the second docking hole and the observation hole; the signal transmission component is used to transmit information about the first distance to the outside.

[0014] The ninth technical solution relates to a three-dimensional printing material management system, which includes a material management station and a docking and conveying structure as described in any one of the first to seventh technical solutions, wherein the material management station is provided with a storage chamber and a feeding piece; the storage chamber is connected to the conveying channel and is used to store materials; the feeding piece is connected to the storage chamber and is used to convey materials to the conveying channel.

[0015] The tenth technical solution relates to a three-dimensional printing material management system, which includes a material management station and a docking conveying structure as described in the eighth technical solution, wherein the material management unit is provided with a storage chamber, a feeding member, a signal receiving member and a controller; the storage chamber is connected to the conveying channel and is used to store materials; the feeding member is connected to the storage chamber and is used to convey materials to the conveying channel; the signal receiving member is used to receive information about a first distance transmitted from the signal transmission member; and the controller controls the feeding member to be closed according to the first distance.

[0016] Compared with the prior art, the above solution has the following beneficial effects:

[0017] In the first technical solution, the rotating member is equivalent to the top cover in the prior art. The rotating member is limited by the docking portion along the rotation axis direction so that the rotating member cannot leave the container, thereby preventing the rotating member from falling and deforming and failing to cover the receiving hole.

[0018] In the first technical solution, the rotating member shields the receiving hole when it is rotated to the first position, and the first docking hole is connected to the receiving hole when it is rotated to the second position, thereby playing the function of opening and closing the receiving hole.

[0019] In the first technical solution, the docking component is plugged into and locked with the first mating part of the rotating part through the second mating part, thereby driving the rotating part to rotate from the first position to the second position, or from the second position to the first position, thereby avoiding the docking component from opening the receiving hole before docking, and better preventing the material in the cavity from contacting the external environment.

[0020] In the second technical solution, the rotating member is limited between the first wall and the second wall along the direction of the rotation axis, which is a preferred implementation of the first technical solution.

[0021] In the third technical solution, the second rotational matching portion of the rotating member is rotationally matched with the first rotational matching portion of the docking portion, thereby realizing the rotational connection between the rotating member and the docking portion. The second rotational matching portion is limitedly matched with the rotational limiting portion along the rotational direction, so that the rotating member can stop at the first position and the second position when rotating, and the rotating member can be determined to close the receiving hole and open the receiving hole.

[0022] In the fourth technical solution, when the rotating member rotates to the second position, the axial limiting portion is limited between the first wall and the second wall along the direction of the rotation axis, so that when conveying materials, the operator does not need to hold the docking assembly by hand to prevent the docking assembly from detaching from the rotating member and the docking portion along the direction of the rotation axis.

[0023] In the fifth technical solution, by providing a flip member and making the flip member open the conveying channel only when the rotating member rotates to the second position, the material in the conveying channel can be prevented from contacting the external environment when the docking assembly is removed from the rotating member.

[0024] In the sixth technical solution, the flipping axis is perpendicular to the rotation axis, which is conducive to the automatic flipping of the flipping member when it reaches the second position.

[0025] The seventh technical solution is a preferred implementation of the fifth and sixth technical solutions. The flipping of the flipping member is achieved by the abutting portion abutting the contact portion, so that the conveying channel is opened or falls onto the first wall and the rotating member only when the rotating member rotates to the second position.

[0026] In the eighth technical solution, by setting a distance sensor, the height of the material in the cavity can be observed in real time during the material conveying process, which is conducive to stopping the material feeding in time when the material is fully loaded.

[0027] The ninth technical solution has the technical effects of the first to seventh technical solutions it refers to.

[0028] In the tenth technical solution, the controller controls the feeding member to close according to the first distance, so that the feeding can be stopped in time when the material is fully loaded. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solution of the embodiment, the following briefly introduces the drawings required for use:

[0030] Figure 1 Schematic diagram of the structure of the three-dimensional printing material management system in the embodiment;

[0031] Figure 2 It is a three-dimensional exploded view of the docking and conveying structure in the embodiment;

[0032] Figure 3 is a top view of the docking portion in the embodiment;

[0033] Figure 4 for Figure 3 AA section view;

[0034] Figure 5 is a front view of the docking portion in the embodiment;

[0035] Figure 6 for Figure 5 BB section view;

[0036] Figure 7 is a top view of the rotating member in the embodiment;

[0037] Figure 8 for Figure 7 CC section view;

[0038] Fig. 9 for Figure 7 DD section view;

[0039] Fig.10 A top view of the building platform when the rotating member is located at the first position in the embodiment;

[0040] Fig.11 for Fig.10 EE section view;

[0041] Fig.12 A bottom view of the building platform when the rotating member is located at the first position in the embodiment;

[0042] Fig.13 is a three-dimensional diagram of a docking assembly in an embodiment;

[0043] Fig.14 It is a left view of the docking assembly in the embodiment;

[0044] Fig.15 A top view of a docking assembly in an embodiment;

[0045] Fig.16 for Fig.15 FF section view;

[0046] Fig.17 It is a top view of the docking conveying structure when the rotating member is located at the first position in the embodiment;

[0047] Fig.18 It is a front view of the docking conveying structure when the rotating member is located at the first position in the embodiment;

[0048] Fig.19 for Fig.18 GG section view;

[0049] Fig. 20 It is a top view of the docking conveying structure when the rotating member is located at the second position in the embodiment;

[0050] Fig.21 for Fig. 20 HH sectional view;

[0051] Fig. 22 It is a front view of the docking conveying structure when the rotating member is located at the second position in the embodiment;

[0052] Fig.23 for Fig. 22 II-direction cross-sectional view;

[0053] Fig.24 It is a bottom view of the docking conveying structure when the rotating member is located at the second position in the embodiment.

[0054] Description of main reference numerals:

[0055] 1. 3D printing material management system; 2. building unit; 3. docking assembly; 4. material management station; 5. container; 6. rotating part; 7. conveying mechanism; 8. docking conveying structure; 9. cavity; 10. docking part; 11. building platform; 12. first wall; 13. clamping ring; 14. second wall; 15. insertion hole; 16. clearance gap; 17. abutment part; 18. first rotating matching part; 19. rotating limit part; 20. receiving hole; 21. observation hole; 22. rotating part body; 23. handle; 24. second rotating matching part; 25. first docking hole; 26. second docking hole; 27. first matching part; 28. docking part; 29. ​​flip part; 30. distance sensor; 31. conveying channel; 32. second matching part; 33. axial limit part; 34. abutment part; 35. flap; 36. flip axis; 37. storage chamber; 38. feeding part. DETAILED DESCRIPTION

[0056] In the claims and the description, unless otherwise defined, the terms "first", "second" or "third", etc. are intended to distinguish different objects rather than to describe a specific order.

[0057] In the claims and the specification, unless otherwise defined, terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings and are only for the convenience of simplifying the description and do not imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction.

[0058] In the claims and the specification, unless otherwise defined, the term "fixed connection" or "fixed connection" should be understood in a broad sense, that is, any connection method in which there is no displacement relationship and relative rotation relationship between the two parties, that is to say, including non-detachable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or elements.

[0059] In the claims and the description, unless otherwise defined, the terms "includes", "has" and their variations mean "including but not limited to".

[0060] In the claims and the specification, unless otherwise defined, the term "provided with" means that the technical feature located thereafter is a part of the technical feature located therefor.

[0061] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the accompanying drawings.

[0062] See also Figure 1 , Figure 1 FIG. 1 shows a three-dimensional printing material management system 1 in an embodiment. Figure 1 As shown, the 3D printing material management system 1 includes a building unit 2, a docking component 3 and a material management station 4.

[0063] like Figure 1 As shown, the building unit 2 includes a container 5, a rotating member 6 and a conveying mechanism 7. The container 5 is used to contain a printing material in powder form. The rotating member 6 is rotatably connected to the container 5, which will be described in detail below. The conveying mechanism 7 is used to convey the printing material in the container 5 to the powder spreading trough.

[0064] In the embodiment, the container 5, the rotating member 6 and the docking assembly 3 together constitute a docking conveying structure 8. The container 5 is provided with a cavity 9 and a docking portion 10. The cavity 9 is used to accommodate printing materials. The docking portion 10 is located at the top of the container 5, and the rotating member 6 is rotatably connected with the docking portion 10 and together forms a building platform 11. The printing material conveyed to the powder laying trough by the conveying mechanism 7 is laid on the building platform 11 by the 3D printer, and the 3D printed part is printed layer by layer on the building platform 11.

[0065] See also Figure 2 , Figure 2 The docking conveying structure 8 is shown. The docking conveying structure 8 comprises a container 9, a rotating member 6 and a conveying mechanism 7. Figure 2 In the embodiment, only the docking portion 10 is shown in the container 5. Figure 2 As shown, in this embodiment, the docking portion 10 includes a first wall 12, a clamping ring 13 and a second wall 14. The first wall 12 and the second wall 14 are parallel to each other. The clamping ring 13 is located between the first wall 12 and the second wall 14. The first wall 12, the clamping ring 13 and the second wall 14 are fixed together by fasteners to form the docking portion 10.

[0066] See also Figures 3 to 6 , Figures 3 to 6 The docking portion 10 is shown. Figure 3 As shown, the first wall 12 is provided with an insertion hole 15, two clearance notches 16 and a top abutment 17. The insertion hole 15 is used for the docking assembly 3 to connect the rotating member 6 along a first direction perpendicular to the first wall 12. The two clearance notches 16 are located at the edge of the insertion hole 15 and arranged along the circumferential direction. The top abutment 17 extends into the edge of the insertion hole 15.

[0067] like Figure 4 , Figure 5 and Figure 6 As shown, the clamp ring 13 is located between the first wall 12 and the second wall 14. The clamp ring 13 is provided with a first rotation fitting portion 18 and two rotation limiting portions 19. The two rotation limiting portions 19 are arranged along the circumferential direction and protrude inward from the first rotation fitting portion 18. The second wall 14 is provided with a receiving hole 20 and an observation hole 21. The receiving hole 20 and the observation hole 21 are radially arranged along the front-to-back direction. The receiving hole 20 and the observation hole 21 are both connected to the cavity 9.

[0068] See also Figures 7 to 9 , Figures 7 to 9 The rotating member 6 is shown. Figure 7 As shown, the rotating member 7 includes a rotating member body 22 and a handle 23. The outer edge of the rotating member body 22 is provided with two second rotating matching portions 24, and the second rotating matching portions 24 are suitable for rotating with the first rotating matching portion 18. Figure 7 and Figure 8 As shown, the rotating member body 22 is further provided with a first docking hole 25 and a second docking hole 26 extending along the first direction. Figure 7 and Fig. 9 As shown, the rotating member body 22 is further provided with two first matching portions 27. In this embodiment, the two first matching portions 27 are blind holes. Figure 7 and Figure 8 As shown, the handle 23 is rotatably connected to the rotating member body 22, and its rotation axis is perpendicular to the first direction. The handle 23 is used for the operator to manually rotate the rotating member 6.

[0069] See also Figures 10 to 12 , Figures 10 to 12 A building platform 11 is shown. Fig.10 As shown, the building platform 11 includes a docking portion 10 and a rotating member 6. Fig.11As shown, the rotating member 6 is located between the first wall 12 and the second wall 14, and is limited in the first direction by the first wall 12 and the second wall 14. The second rotating matching portion 24 of the rotating member 6 is rotationally matched with the first rotating matching portion 18 of the docking portion 10, so that the rotating member 6 rotates relative to the container 5 around the rotation axis extending along the first direction. The second rotating matching portion 24 is also limited in the rotation direction by two rotating limiting portions 19, so that the rotating member 6 rotates relative to the container 5 between the first position and the second position. Figures 10 to 12 The state of the building platform 11 is shown when the rotating member 6 is in the first position. At this time, the first docking hole 25 and the second docking hole 26 are respectively misaligned with the receiving hole 20 and the observation hole 21, so that the rotating member 6 can cover the receiving hole 20 and the observation hole 21, thereby isolating the cavity 9 from the external environment.

[0070] See also Figures 13 to 16 , Figures 13 to 16 A docking assembly 3 is shown. Fig.13 As shown, the docking assembly 3 includes a docking member 28, a flip member 29, a distance sensor 30 and a signal transmission member (not shown in the figure). Fig.13 and Fig.16 As shown, the docking piece 28 is provided with a conveying channel 31, two second matching parts 32 and two axial limiting parts 33. The conveying channel 31 extends along the extension direction of the docking piece 28 and passes through the entire docking piece 28. The conveying channel 31 is used to convey printing materials. The two second matching parts 32 extend from the bottom surface of the docking piece 28 along the first direction, and are used to be plugged in and locked with the two first matching parts 27. The locking fit here means that when the two second matching parts 32 are plugged in with the two first matching parts 27, the docking piece 28 and the rotating piece 6 cannot rotate relative to each other. There are many ways to achieve locking fit, as long as the first matching part 27 and the second matching part 32 are not on the rotation axis of the rotating piece 6, or even if they are on the rotation axis of the rotating piece 6 but are non-rotating surface fit, it can be achieved. The two axial limiting parts 33 protrude radially from the body of the docking piece 28, and are suitable for being inserted into the two clearance gaps 16 correspondingly along the first direction. As shown Fig.14 and Fig.16As shown, the flip member 29 includes an abutment portion 34, a flap 35 and a flip shaft 36. The flip member 29 is rotatably connected to the docking member 28, and its flip axis is perpendicular to the first direction. The abutment portion 34 extends out of the docking member 28 along the flip axis and is suitable for being flipped by the abutment portion 17. In this embodiment, the abutment portion 34 is designed to be L-shaped. In other embodiments, as long as the position where the abutment portion 34 is suitable for being abutted by the abutment portion 17 forms a torque relative to the flip axis, the abutment portion 34 can be flipped under force. The flap 35 is placed at the outlet of the conveying channel 31 and switches between an open position and a closed position by flipping relative to the docking member 28. In the open position, the flap 35 opens the outlet of the conveying channel 31, and in the closed position, the flap 35 closes the outlet of the conveying channel 31. The flip shaft 36 extends along the flip axis and is fixedly connected to the abutment portion 34 and the flap 35. In this embodiment, when the abutment portion 34 is not subjected to force, the flap 35 is in a closed position. When the abutment portion 34 is subjected to force, the flap 35 moves to the open position. Specifically, the flap 35 can be reset to the closed position when the abutment portion 34 is not subjected to force by setting a counterweight to the flap 35. Of course, the flap 35 can also be reset by setting an elastic member or the like. The distance sensor 30 is arranged along the first direction toward the jack 15. The distance sensor 30 is used to measure the first distance between the printing material in the cavity 9 and the distance sensor 30 when the docking assembly 3 is connected to the building platform 11. If the first distance is less than or equal to the threshold, it means that the printing material in the cavity 9 is full. The signal transmission element is used to transmit information about the first distance to the outside. In this embodiment, the signal transmission element is a wireless transmitter. In other embodiments, the signal transmission element can also transmit information by wire. In some embodiments, the signal transmission element is integrated into the distance sensor 30, and as long as it has the function of sending information, it should be regarded as having a signal transmission element.

[0071] See also Figures 17 to 19 , Figures 17 to 19 FIG. 2 shows the state of the docking conveying structure 8 when the second matching portion 32 is inserted into the insertion hole 15 and the first matching portion 27. At this time, the rotating member 6 is in the first position. Fig.17 As shown, when the rotating member 6 is in the first position, the two axial limiting portions 33 are inserted into the corresponding clearance notches 16. The abutting portion 34 is away from the top abutting portion 17. Fig.18 and Fig.19 As shown, the second matching portion 32 is inserted into the first matching portion 27. The second rotation matching portion 24 abuts against the rotation limiting portion 19 clockwise. As described above, at this time, the rotating member 6 covers the receiving hole 20 and the observation hole 21.

[0072] See also Figure 20 to Figure 24 , Figure 20 to Figure 24 The state of the docking conveying structure 8 is shown when the docking assembly 3 is rotated counterclockwise until the docking assembly 3 drives the rotating member 6 to move to the second position. Fig. 20 and Fig.23As shown in FIG. 1 , at this time, the contact portion 34 is pressed against the pressing portion 17 in the clockwise direction, so that the flap 35 moves to the open position. Fig.21 As shown, at this time, the axial limiting portion 33 is located between the rotating member 6 and the first wall 12, and is also limited between the first wall 12 and the second wall 14, so that the docking assembly 3 is limited by the docking portion 10 along the first direction and cannot be separated from the building platform 11 along the first direction. Fig.23 and Fig.24 As shown, at this time, the second rotating matching portion 24 abuts the rotating limiting portion 19 counterclockwise, and the first docking hole 25 is connected with the receiving hole 20, so that the conveying channel 31 can be connected to the cavity 9 through the insertion hole 15, the first docking hole 25 and the receiving hole 20 to convey the printing material to the cavity 9; the second docking hole 26 is connected with the observation hole 21, so that the distance sensor 30 can measure the distance between the printing material in the cavity 9 and the distance sensor 30 through the second docking hole 26 and the observation hole 21.

[0073] See also Figure 1 , Figure 1 A material management station 4 is shown. Figure 1 As shown, the material management station 4 includes a storage chamber 37, a feeding member 38, a signal receiving member (not shown in the figure) and a controller (not shown in the figure). The storage chamber 37 is used to store printing materials, and the storage chamber 37 is connected to the entrance of the conveying channel 31. The feeding member 38 is connected to the storage chamber 37 and is used to convey printing materials to the conveying channel 31. In this embodiment, the feeding member 38 is a pump. The signal receiving member is used to receive information about the first distance transmitted from the signal transmission member. In this embodiment, the signal receiving member is a wireless receiver. In other embodiments, the signal receiving member can also be connected to the signal transmission member by wire. The controller is electrically connected to the signal receiving member and is used to control the opening and closing of the feeding member 38 according to the first distance. When the conveying starts, the controller controls the feeding member 38 to open, and the printing material is conveyed from the storage chamber 37 to the cavity 9 through the conveying channel 31. When the printing material is fully loaded in the cavity 9, the first distance is less than or equal to the threshold, and the controller controls the feeding member 38 to close to stop feeding the cavity 9. After the feeding is completed, the docking assembly 3 is rotated clockwise until the rotating part 6 is reset to the first position. At this time, the flap 35 is reset to the closed position due to the disengagement of the abutting portion 34 from the abutting portion 17. Then the docking assembly 3 is removed from the building platform 11. At this time, the remaining material in the conveying channel 31 will not leak to the surface of the building platform 11.

[0074] In this embodiment, the rotating member 6 is equivalent to the top cover in the prior art. The rotating member 6 is limited by the docking portion 10 along the rotation axis direction, so that the rotating member 6 cannot leave the container 5, thereby preventing the rotating member 6 from falling and deforming and failing to cover the receiving hole 20.

[0075] In this embodiment, the rotating member 6 covers the receiving hole 20 and the observation hole 21 when it is rotated to the first position, and the first docking hole 25 is connected to the receiving hole 20 and the second docking hole 26 is connected to the observation hole 21 when it is rotated to the second position, thereby playing the function of opening and closing the receiving hole 20 and the observation hole 21.

[0076] In this embodiment, the docking component 3 is plugged and locked with the first mating portion 27 of the rotating member 6 through the second mating portion 32, thereby driving the rotating member 6 to rotate from the first position to the second position, or from the second position to the first position, thereby avoiding the docking component 3 from opening the receiving hole 20 before docking, and better preventing the material in the cavity 9 from contacting the external environment.

[0077] In this embodiment, the second rotational matching portion 24 of the rotating member 6 is rotationally matched with the first rotational matching portion 18 of the docking portion 10, thereby realizing the rotational connection between the rotating member 6 and the docking portion 10. The second rotational matching portion 24 is limitedly matched with the rotational limiting portion 19 along the rotational direction, so that the rotating member 6 can be parked at the first position and the second position when rotating, and the rotating member 6 can be determined to close the receiving hole 20 and open the receiving hole 20.

[0078] In this embodiment, when the rotating member 6 rotates to the second position, the axial limiting portion 33 is limited between the first wall 12 and the second wall 14 along the direction of the rotation axis, so that when conveying materials, the docking assembly 3 cannot be separated from the rotating member 6 and the docking portion 10 along the direction of the rotation axis without the operator holding the docking assembly 3.

[0079] In this embodiment, a flip member 29 is provided, and the flip member 29 opens the conveying channel 31 only when the rotating member 6 rotates to the second position, thereby preventing the material in the conveying channel 31 from contacting the external environment or falling onto the first wall 12 and the rotating member 6 when the docking assembly 3 is removed from the rotating member 6.

[0080] In this embodiment, by providing the distance sensor 30 , the height of the material in the cavity 9 can be observed in real time during the material conveying process, which is helpful to stop the material feeding in time when the material is fully loaded.

[0081] In this embodiment, the controller controls the feeding member 38 to close according to the first distance, so that the feeding can be stopped in time when the material is fully loaded.

[0082] The above specification and description of the embodiments are used to explain the protection scope of the present application, but do not constitute a limitation on the protection scope of the present application.

Claims

1. A docking conveying structure, characterized in that: include: A container, which is provided with a cavity and a docking portion, wherein the cavity is used to contain the material to be transported, and the docking portion is provided with a receiving hole communicating with the cavity; A rotating member having a first docking hole and a first matching portion; the rotating member rotates relative to the docking portion around a rotation axis between a first position and a second position and is limited by the docking portion along the rotation axis; and A docking assembly, which is provided with a second matching portion of a conveying channel; the conveying channel is used to convey materials to the containing cavity; the second matching portion is suitable for being plugged with the first matching portion along the direction of the rotation axis and forming a non-rotating fit, so that the docking assembly drives the rotating member to rotate; When the rotating member rotates to the first position, the rotating member covers the receiving hole; when the rotating member rotates to the second position, the conveying channel is connected to the cavity through the first docking hole and the receiving hole.

2. A docking conveying structure as claimed in claim 1, characterized in that: The docking portion is provided with a first wall and a second wall perpendicular to the direction of the rotation axis; the first wall is provided with a socket for the second matching portion to be plugged into the first matching portion; the receiving hole is provided on the second wall; and the rotating member is limited between the first wall and the second wall along the direction of the rotation axis.

3. A docking conveying structure as claimed in claim 2, characterized in that: The docking portion is also provided with a first rotation fitting portion and a rotation limiting portion between the first wall and the second wall; the rotating part is provided with a second rotation fitting portion; the first rotation fitting portion and the second rotation fitting portion are rotationally fitted; the rotation limiting portion protrudes radially inwardly from the first rotation fitting portion, and the second rotation fitting portion and the rotation limiting portion are limitedly fitted along the rotation direction of the rotating part, so that the rotating part rotates between the first position and the second position relative to the docking portion.

4. A docking conveying structure as claimed in claim 3, characterized in that: The docking assembly is provided with an axial limiting portion; when the rotating member is in the first position, the docking assembly is suitable for connecting with the rotating member or moving away from the rotating member along the direction of the rotation axis; when the rotating member is in the second position, the axial limiting portion is limited between the first wall and the second wall along the direction of the rotation axis.

5. A docking conveying structure as claimed in claim 4, characterized in that: The docking assembly includes a docking piece and a flipping piece; the conveying channel and the axial limiting portion are arranged on the docking piece, and the flipping piece flips around the flipping axis relative to the docking piece to open and close the conveying channel; when the rotating piece rotates to the second position, the flipping piece is pushed against by the docking portion and flipped to open the conveying channel; when the rotating piece rotates away from the second position, the flipping piece is disengaged from the push against the docking portion and flipped to close the conveying channel.

6. A docking conveying structure as claimed in claim 5, characterized in that: The flip axis is perpendicular to the rotation axis.

7. A docking conveying structure as claimed in claim 6, characterized in that: The first wall is provided with a supporting portion suitable for supporting the flip member; the flip member is provided with a supporting portion, a flap and a flip axis; the supporting portion extends out of the docking member along the flip axis and is suitable for being supported by the supporting portion; the flap is located in the docking member and is used to open and close the conveying channel; the flip axis extends along the flip axis and is fixedly connected to the supporting portion and the flap.

8. A docking conveying structure according to any one of claims 2 to 7, characterized in that: The docking assembly is also provided with a distance sensor and a signal transmission component; the second wall is also provided with an observation hole; the rotating member is also provided with a second docking hole; the distance sensor is fixedly connected to the docking member and is located outside the conveying channel; when the rotating member is located in the second position, the distance sensor measures the first distance between the material in the cavity and the distance sensor through the insertion hole, the second docking hole and the observation hole, and the signal transmission component is used to transmit information about the first distance to the outside.

9. A three-dimensional printing material management system, characterized in that: It comprises a material management station and a docking conveying structure as described in any one of claims 1 to 7, wherein the material management station is provided with a storage chamber and a feeding piece; the storage chamber is connected to the conveying channel and is used for storing materials; the feeding piece is connected to the storage chamber and is used for conveying materials to the conveying channel.

10. A three-dimensional printing material management system, characterized in that: It comprises a material management station and a docking conveying structure as claimed in claim 8, wherein the material management unit is provided with a storage chamber, a feeding member, a signal receiving member and a controller; the storage chamber is connected to the conveying channel and is used to store materials; the feeding member is connected to the storage chamber and is used to convey materials to the conveying channel; the signal receiving member is used to receive information about a first distance transmitted from the signal transmission member; and the controller controls the feeding member to close according to the first distance.

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