Blending device for 3D printing material

Abstract

The utility model discloses a 3D printing material blending device which comprises a blending box, the periphery of the bottom of the blending box is fixedly connected with supporting columns, the top of one side of the blending box is provided with a plurality of feeding grooves with the same volume, the other side of the blending box is provided with a discharging groove and a material mixing cavity which are arranged up and down, and the feeding grooves and the material mixing cavity are both communicated with the discharging groove. A push plate moving in the horizontal direction is arranged in the feeding groove, and the push plate is in transition fit with the feeding groove. According to the utility model, each electric telescopic rod is driven to drive the push plate to move in the feeding groove and stop after moving to a corresponding position, the accommodating cavities for accommodating the raw materials are formed between the feeding groove and the push plate, the ratio of the accommodating cavities is related to the raw material proportioning requirement, then the raw materials are added into the accommodating cavities through the feeding hole, and the blended raw materials are fed into the mixing cavity to be stirred and mixed, so that the raw materials are uniformly mixed. Compared with a traditional mixing device only having a mixing function, the device further has a raw material proportioning function, feeding is rapid, the overall blending time is shortened, and the blending efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dispensing machines, and particularly relates to a dispensing device for 3D printing materials. Background Art

[0002] 3D printing is a rapid prototyping technology that uses powdery materials with adhesive properties to construct objects by layer-by-layer printing, also known as additive manufacturing. 3D printing building materials are based on digital models and are made of special "inks" mainly composed of cementitious materials, admixtures, additives, special fibers, and aggregates. After converting the building model into a three-dimensional design drawing by computer graphics, the building or structure is printed and constructed by adding materials layer by layer through layer-by-layer processing and stacking forming.

[0003] In the preparation process of some 3D printing, it is necessary to prepare a composite material, such as mixing cementitious materials, admixtures, additives, special fibers, aggregates, etc. In the prior art, generally, the raw materials are proportioned first and then put into a mixing device for mixing. That is, the general mixing device only has a mixing function, with a single function and a low feeding speed. Therefore, based on the existing mixing device, the utility model improves it and provides a dispensing device for 3D printing materials that combines mixing and dispensing functions. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a dispensing device for 3D printing materials to solve the technical problems mentioned in the above background art.

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

[0006] A dispensing device for 3D printing materials includes a dispensing box. Support columns are fixedly connected to the four sides of the bottom of the dispensing box. A plurality of feeding grooves with the same volume are opened at the top of one side of the dispensing box. A discharging groove and a mixing chamber are arranged up and down on the other side of the dispensing box. The feeding grooves and the mixing chamber are both communicated with the discharging groove. A pushing plate that moves horizontally is arranged in the feeding groove, and the pushing plate is in transitional fit with the feeding groove. A stirring mechanism is arranged in the mixing chamber, and a second discharging pipe communicated with the mixing chamber is arranged at the bottom of the dispensing box.

[0007] As a further description of the above technical solution:

[0008] A first discharging pipe is communicated with the bottom of the side of the feeding groove close to the discharging groove, and a first electromagnetic valve is installed on the first discharging pipe. A second electromagnetic valve is installed on the second discharging pipe.

[0009] As a further description of the above technical solution:

[0010] On one side of the dispensing box close to the feeding trough, a support plate is fixedly installed. An electric telescopic rod is fixedly installed on the support plate. The telescopic rod end of the electric telescopic rod penetrates into the feeding trough and is fixedly connected to the pushing plate.

[0011] As a further description of the above technical solution:

[0012] The top of the dispensing box is fixedly connected with a top cover. The top cover located above the feeding trough is made of a transparent material. An inlet is opened on the top cover corresponding to the feeding trough and arranged close to the side of the discharging trough.

[0013] As a further description of the above technical solution:

[0014] The stirring mechanism includes a driving motor and a stirring rod. The driving motor is fixedly installed on the top cover. The output shaft of the driving motor is fixedly connected to the rod end of the stirring rod. The stirring blade end of the stirring rod is arranged in the mixing cavity.

[0015] As a further description of the above technical solution:

[0016] The bottom of the discharging trough is designed as a discharging inclined plane with a V-shaped structure. The mixing cavity penetrates upward through the middle of the discharging inclined plane.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:

[0018] 1. In the present utility model, each electric telescopic rod is driven to drive the pushing plate to move in the feeding trough. After moving to the corresponding position and stopping, a cavity for accommodating raw materials is formed between the feeding trough and the pushing plate. The ratio of the cavity is related to the raw material ratio requirement. Then, the raw materials are added into the cavity through the inlet. After filling the cavity, the first solenoid valve is started, the first discharging pipe is opened, and the electric telescopic rod is started again to push various raw materials to enter the mixing cavity simultaneously through the corresponding first discharging pipes. Compared with the traditional mixing device that only has a mixing function, the present device also has a raw material ratio function, with faster feeding, shortening the overall dispensing time, and improving the dispensing efficiency.

[0019] 2. In the present utility model, the bottom of the discharging trough is designed as a discharging inclined plane with a V-shaped structure, and the mixing cavity penetrates upward through the middle of the discharging inclined plane, ensuring that all different types of raw materials after dispensing can completely enter the mixing cavity. Description of the Drawings

[0020] Figure 1 Shows an internal structure schematic diagram of a dispensing device for 3D printing materials provided according to an embodiment of the present utility model;

[0021] Figure 2 Shows an internal structure schematic diagram of the discharging trough and the mixing cavity of a dispensing device for 3D printing materials provided according to an embodiment of the present utility model;

[0022] Figure 3 shows a cross-sectional schematic view of a device for preparing a 3D printing material according to an embodiment of the present invention;

[0023] Figure 4 shows a three-dimensional structural schematic view of a device for preparing a 3D printing material according to an embodiment of the present invention.

[0024] Legend description:

[0025] 1. Blending tank; 101. Feeding trough; 102. Discharging trough; 103. Mixing chamber; 2. Support column; 3. Support plate; 4. Electric telescopic rod; 5. Pushing plate; 6. First solenoid valve; 7. First discharging pipe; 8. Driving motor; 9. Stirring rod; 10. Discharging slope; 11. Top cover; 1101. Feeding port; 12. Second discharging pipe; 13. Second solenoid valve. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] Please refer to Figures 1-4, the present utility model provides a technical solution: a dispensing device for 3D printing materials, including a dispensing tank 1. Four support columns 2 are fixedly connected to the bottom periphery of the dispensing tank 1. A plurality of feeding grooves 101 with the same volume are opened at the top of one side of the dispensing tank 1. A feeding chute 102 and a mixing chamber 103 are arranged vertically on the other side of the dispensing tank 1. A first discharge pipe 7 is connected to the bottom of the side of the feeding groove 101 close to the feeding chute 102. A first solenoid valve 6 is installed on the first discharge pipe 7. The bottom of the feeding chute 102 is designed as a V-shaped discharge slope 10. The mixing chamber 103 penetrates upward through the middle of the discharge slope 10. A push plate 5 is arranged horizontally and movably in the feeding groove 101. A support plate 3 is fixedly installed on the side of the dispensing tank 1 close to the feeding groove 101. An electric telescopic rod 4 is fixedly installed on the support plate 3. The telescopic rod end of the electric telescopic rod 4 penetrates into the feeding groove 101 and is fixedly connected to the push plate 5. The push plate 5 is in transitional fit with the feeding groove 101. The top of the dispensing tank 1 is fixedly connected with a top cover 11. The top cover 11 above the feeding groove 101 is made of a transparent material. A feeding port 1101 corresponding to the feeding groove 101 and arranged close to the feeding chute 102 side is opened on the top cover 11. A second discharge pipe 12 communicating with the mixing chamber 103 is arranged at the bottom of the dispensing tank 1. A second solenoid valve 13 is installed on the second discharge pipe 12. Drive each electric telescopic rod 4 to drive the push plate 5 to move in the feeding groove 101, and stop after moving to the corresponding position. The start and stop positions of the electric telescopic rod 4 are controlled by a PLC, so that the push plate 5 can be accurately positioned. A cavity for accommodating raw materials is formed between the feeding groove 101 and the push plate 5. The ratio of the cavities is related to the raw material ratio requirement. Then, add the raw materials into the cavity through the feeding port 1101. After filling the cavity, start the first solenoid valve 6, open the first discharge pipe 7, and start the electric telescopic rod 4 again to push various raw materials into the feeding chute 102 through the corresponding first discharge pipes 7 at the same time. The raw materials flow completely into the mixing chamber 103 along the discharge slope 10 for mixing. Compared with the traditional mixing device that only has a mixing function, this device also has a raw material ratio function, with faster feeding, shortening the overall dispensing time and improving the dispensing efficiency.

[0028] Specifically, as Figure 2 shown, a stirring mechanism is arranged in the mixing chamber 103. The stirring mechanism includes a driving motor 8 and a stirring rod 9. The driving motor 8 is fixedly installed on the top cover 11. The output shaft of the driving motor 8 is fixedly connected to the rod end of the stirring rod 9. The stirring blade end of the stirring rod 9 is arranged in the mixing chamber 103. Different types of raw materials flow into the mixing chamber 103 along the discharge slope 10. The driving motor 8 drives the stirring rod 9 to rotate to mix various raw materials. After mixing, open the second solenoid valve 13 and discharge through the second discharge pipe 12.

[0029] Working principle: When in use, first, drive each electric telescopic rod 4 to drive the push plate 5 to move in the feeding trough 101, and stop after moving to the corresponding position. The start and stop positions of the electric telescopic rod 4 are controlled by the PLC, so that the push plate 5 can be accurately positioned. A cavity for accommodating raw materials is formed between the feeding trough 101 and the push plate 5. The ratio of the cavities is related to the raw material ratio requirement. After that, add the raw materials into the cavity through the feeding port 1101. After filling the cavity, start the first solenoid valve 6, open the first discharge pipe 7, and start the electric telescopic rod 4 again to push various raw materials to enter the discharge trough 102 through the corresponding first discharge pipes 7 at the same time. Different types of raw materials enter the mixing cavity 103 along the discharge slope 10. The drive motor 8 drives the stirring rod 9 to rotate to mix various raw materials. After mixing, open the second solenoid valve 13 and discharge through the second discharge pipe 12. Compared with the traditional mixing device that only has the mixing function, this device also has the function of raw material ratio, with faster feeding, shortening the overall dispensing time and improving the dispensing efficiency.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A dispensing device for 3D printing materials, including a dispensing box (1), and support columns (2) are fixedly connected to the four peripheries of the bottom of the dispensing box (1). It is characterized in that, On one side of the top of the dispensing box (1), a number of feeding grooves (101) with the same volume are provided. On the other side of the dispensing box (1), a feeding chute (102) and a mixing chamber (103) are arranged vertically. The feeding grooves (101) and the mixing chamber (103) are both communicated with the feeding chute (102). A push plate (5) that moves horizontally is arranged in the feeding groove (101). The push plate (5) is in transitional fit with the feeding groove (101). A stirring mechanism is arranged in the mixing chamber (103). A second discharge pipe (12) communicated with the mixing chamber (103) is arranged at the bottom of the dispensing box (1).

2. The dispensing device for a 3D printing material according to claim 1, characterized in that, One side bottom of the feeding groove (101) close to the feeding chute (102) is communicated with a first discharge pipe (7). A first solenoid valve (6) is installed on the first discharge pipe (7). A second solenoid valve (13) is installed on the second discharge pipe (12).

3. The dispensing device for a 3D printing material according to claim 2, wherein, A support plate (3) is fixedly installed on one side of the dispensing box (1) close to the feeding groove (101). An electric telescopic rod (4) is fixedly installed on the support plate (3). The telescopic rod end of the electric telescopic rod (4) penetrates into the feeding groove (101) and is fixedly connected with the push plate (5).

4. The dispensing device for a 3D printing material according to claim 3, characterized in that, The top of the dispensing box (1) is fixedly connected with a top cover (11). The top cover (11) above the feeding groove (101) is made of a transparent material. A feed inlet (1101) corresponding to the feeding groove (101) and arranged close to the feeding chute (102) side is opened on the top cover (11).

5. The dispensing device for a 3D printing material according to claim 4, characterized in that, The stirring mechanism includes a driving motor (8) and a stirring rod (9). The driving motor (8) is fixedly installed on the top cover (11). The output shaft of the driving motor (8) is fixedly connected with the rod end of the stirring rod (9). The stirring blade end of the stirring rod (9) is arranged in the mixing chamber (103).

6. The dispensing device for a 3D printing material according to claim 5, characterized in that, The bottom of the feeding chute (102) is designed as a feeding inclined plane (10) with a V-shaped structure. The mixing chamber (103) penetrates upward through the middle of the feeding inclined plane (10).

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