3D printing raw material mixing device

Abstract

The utility model belongs to the technical field of 3D printing, and particularly relates to a 3D printing raw material mixing device which comprises a mixing cabin main body, a feeding cylinder is fixed above the mixing cabin main body, the feeding cylinder and the mixing cabin main body are communicated with each other, a limiting ring is fixed above the feeding cylinder, and the feeding cylinder and the mixing cabin main body are communicated with each other. A first heating ring is mounted between the inner walls of the feeding cylinder; the heating screen mesh is mounted between the lower parts of the first heating rings, and the heating screen mesh is connected with the first heating rings, so that the heating screen mesh can play a certain role in heating and melting the raw materials while screening the molten raw materials through the structural characteristics of the heating screen mesh; only the raw materials which are relatively thoroughly melted can enter the mixing cabin main body through the heating screen to be stirred and mixed, so that the possibility that the raw materials which are stirred and mixed in the mixing cabin main body are not completely melted is reduced, and the raw materials can be relatively completely mixed in the mixing cabin main body; and the quality of mixed raw materials produced by the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to 3D printing technical field, specifically a kind of 3D printing raw material mixing device. BACKGROUND

[0002] 3D printing (3DP) is one of rapid prototyping technology, also called additive manufacturing, it is a kind of technology based on digital model file, using powder-like metal or plastic and other materials that can be bonded, by layering printing to construct object, 3D printing raw material has diversity, in order to neutralize the advantages and disadvantages of various 3D printing materials will be through raw material mixing device different categories of raw material melting mixed again into 3D printer's raw material particles.

[0003] The raw material mixing device in prior art includes mixing cabin main body, heating cylinder, stirring blade and granulator main body and other structure compositions, heating cylinder is installed in the inside of mixing cabin main body, the heating cabin main body is heated by its heating effect, the temperature in cabin is raised, under the action of high temperature, raw material particles added into the inside of mixing cabin are melted, then under the rotation of stirring blade, the melting and mixing of different raw material particles are realized, after mixing, raw material particles are discharged from mixing cabin main body and then enter granulator main body, to realize the granulation of mixed material.

[0004] At present, in prior art, different categories of raw materials are melted and mixed by high temperature in the inside of mixing cabin main body after entering the inside of mixing cabin main body, this method makes the melting state of raw material particles not easy to determine, raw materials may not be completely melted, and then lead to the mixing of mixed raw materials not thorough, reduce the quality of mixed raw materials.

[0005] Therefore, aiming at the above problems, a kind of 3D printing raw material mixing device is provided. INVENTION CONTENTS

[0006] In order to make up for the deficiency of prior art, solve the problem that the melting state of raw material particles is not easy to determine, raw materials may not be completely melted, and then lead to the mixing of mixed raw materials not thorough, a kind of 3D printing raw material mixing device is provided.

[0007] The utility model discloses a kind of 3D printing raw material mixing device, including mixing cabin main body, the upper portion of the mixing cabin main body is fixed with feeding cylinder, the feeding cylinder and the mixing cabin main body are mutually penetrated, the upper portion of the feeding cylinder is fixed with limit ring, the inner wall of the feeding cylinder is installed with first heating ring, the top surface of the first heating ring and the top surface of limit ring are contacted, the bottom surface of the first heating ring is fixed with heating screen, the heating screen is located the upper portion of the opening of mixing cabin main body, the inside of the cylinder wall of the mixing cabin main body is installed with second heating ring, the upper portion of the opening of the mixing cabin main body is installed with fixed crosspiece between inner wall.

[0008] Preferably, the inside of the mixing cabin body is provided with a stirring shaft, both ends of the stirring shaft are fixed with mounting bearings, one of the mounting bearings is connected with the center of the bottom surface of the fixed transverse plate, the other mounting bearing is connected with the center of the bottom surface of the inside of the mixing cabin body, and stirring blades are fixed between the outer walls of the stirring shaft.

[0009] Preferably, a discharging hole is arranged at the bottom surface of the inner wall of the mixing cabin body close to one side edge, and a mixing support is arranged below the mixing cabin body.

[0010] Preferably, a motor is fixed at the center of the bottom of the mixing cabin body, and the output shaft of the motor is connected with the shaft center of the stirring shaft through the mixing cabin body and the mounting bearing.

[0011] Preferably, a granulator body is arranged at one side of the mixing cabin body, and a granulator support is arranged below the granulator body.

[0012] Preferably, a material guiding elbow is arranged on the outer wall of the feeding opening of the granulator body, and one end of the material guiding elbow is clamped with the inner wall of the discharging hole.

[0013] The D printing raw material mixing device has the advantages that:

[0014] The D printing raw material mixing device has the advantages that: the first heating ring is arranged between the inner walls of the feeding cylinder to warm and melt the raw materials in the feeding cylinder before the raw materials enter the inside of the mixing cabin body, the heating screen is arranged below the first heating ring, the heating screen is connected with the first heating ring, and the heating screen can screen the melted raw materials and heat and melt the raw materials, only the raw materials that are completely melted can pass through the heating screen and enter the inside of the mixing cabin body to be stirred and mixed, the possibility that the raw materials in the inside of the mixing cabin body are not completely melted is reduced, the raw materials can be completely mixed in the inside of the mixing cabin body, and the quality of the mixed raw materials produced by the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0016] Figure 1 is a perspective view of the present application;

[0017] Figure 2 is a perspective view of the mixing cabin body in the present application;

[0018] Figure 3 is the perspective view of the first heating ring in the utility model;

[0019] Figure 4 is the perspective view of the material guiding elbow in the utility model;

[0020] Figure 5 is the perspective view of the stirring blade in the utility model;

[0021] Legend:

[0022] 1, mixed cabin main body; 11, feeding cylinder; 12, limit ring; 2, first heating ring; 21, heating screen; 3, second heating ring; 13, fixed horizontal plate; 4, stirring shaft; 41, mounting bearing; 42, stirring blade; 14, discharge hole; 5, mixing support; 6, motor; 7, granulator main body; 8, granule support; 9, material guiding elbow. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] The specific embodiments are given below.

[0025] Please refer to Figures 1-5 The utility model provides a kind of 3D printing raw material mixing device, including mixed cabin main body 1, the upper of mixed cabin main body 1 is fixed with feeding cylinder 11, the feeding cylinder 11 and mixed cabin main body 1 are mutually through, the upper of feeding cylinder 11 is fixed with limit ring 12, the inner wall between feeding cylinder 11 is equipped with first heating ring 2, the top surface of first heating ring 2 and the top surface of limit ring 12 are in contact, the bottom surface between first heating ring 2 is fixed with heating screen 21, heating screen 21 is located the upper of the opening of mixed cabin main body 1, the inside of the cylinder wall of mixed cabin main body 1 is equipped with second heating ring 3, the upper opening inner wall of mixed cabin main body 1 is equipped with fixed horizontal plate 13;

[0026] In operation, in order to solve the problem that the melting state of raw material particles is not easy to determine, and the raw material may not be completely melted, and then the mixed raw material is not thoroughly mixed, the feeding cylinder 11 is installed above the mixing cabin body 1, the first heating ring 2 is installed inside the mixing cabin body 1 under the cooperation of the feeding cylinder 11 and the limiting ring 12, the raw material inside the feeding cylinder 11 is heated and melted by the first heating ring 2 installed between the inner walls of the feeding cylinder 11 before entering the mixing cabin body 1, the heating screen 21 is installed below the first heating ring 2, and the heating screen 21 is connected with the first heating ring 2, so that the raw material after melting is screened by the structure of the heating screen 21, and the raw material is also heated and melted, and only the raw material that is completely melted can pass through the heating screen 21 and enter the mixing cabin body 1 for stirring and mixing, so that the possibility of the raw material not being completely melted in the stirring and mixing process in the mixing cabin body 1 is reduced, the fixed horizontal plate 13 is installed between the inner walls of the feeding cylinder 11 to cooperate with the installation of the stirring shaft 4, the second heating ring 3 is installed inside the mixing cabin body 1 to provide a melting temperature for the mixed raw material, and the melting degree of the raw material in the stirring process is increased to a certain extent under the continuous heating of the second heating ring 3, and the mixing degree of the raw material is increased.

[0027] Further, as shown in Figure 2 and Figure 5 , the inside of the mixing cabin body 1 is provided with a stirring shaft 4, both ends of the stirring shaft 4 are fixed with mounting bearings 41, one of the mounting bearings 41 is connected with the center of the bottom surface of the fixed horizontal plate 13, and the other mounting bearing 41 is connected with the center of the bottom surface of the inside of the mixing cabin body 1, and the outer wall of the stirring shaft 4 is fixed with stirring blades 42.

[0028] In operation, the stirring shaft 4 is fixed inside the mixing cabin body 1 through the cooperation of the mounting bearings 41 and the fixed horizontal plate 13 and the inner wall, and the structure of the mounting bearings 41 makes the rotation of the stirring shaft 4 after installation not affect its fixation, and the stirring blades 42 are installed between the outer wall of the stirring shaft 4, so that the rotation of the stirring blades 42 is driven by the rotation of the stirring shaft 4 to achieve the purpose of mixing and stirring the raw material in the mixing cabin body 1.

[0029] Further, as shown in Figure 1 and Figure 2 , the bottom surface of the inner wall of the mixing cabin body 1 is provided with a discharge hole 14 near one side edge, and the mixing support 5 is arranged below the mixing cabin body 1.

[0030] In operation, the raw material after stirring is discharged from the mixing cabin body 1 through the discharge hole 14, and the mixing support 5 is installed below the mixing cabin body 1 to support it.

[0031] Further, as shown in Figure 2 and Figure 5 , the lower center of the mixing cabin body 1 is fixed with a motor 6, the output shaft of the motor 6 penetrates the mixing cabin body 1 and the installation bearing 41 and is connected with the shaft center of the stirring shaft 4.

[0032] When working, the motor 6 provides output force for the rotation of the stirring shaft 4 through the connection with the stirring shaft 4.

[0033] Further, as shown in Figure 5 , one side of the mixing cabin body 1 is provided with a granulator body 7, and the lower side of the granulator body 7 is provided with a granulator support 8.

[0034] When working, the granulator body 7 is installed on one side of the mixing cabin body 1 to cool and granulate the raw materials discharged from the mixing cabin body 1, and the granulator support 8 supports the granulator body 7.

[0035] Further, as shown in Figure 2 and Figure 4 , the feeding port outer wall of the granulator body 7 is installed with a material guide elbow 9, and one end of the material guide elbow 9 is clamped with the inner wall of the discharge hole 14.

[0036] When working, the material guide elbow 9 connects the discharge hole 14 and the granulator body 7, so that the raw materials discharged from the mixing cabin body 1 can directly enter the inside of the granulator body 7 for cooling and granulation processing.

[0037] Working principle: in order to solve the raw material particles melting state is not easy to determine, may appear raw material not completely melted, and then lead to mixed raw material mixed not thoroughly Problem, feeding cylinder 11 is installed above the mixing cabin main body 1, the first heating ring 2 is installed in the mixing cabin main body 1 under the cooperation of feeding cylinder 11 and limiting ring 12, the first heating ring 2 installed between the inner wall of feeding cylinder 11 is used to warm up and melt the raw material in the feeding cylinder 11 before entering the mixing cabin main body 1, and the heating screen 21 is installed below the first heating ring 2, which is connected with the first heating ring 2 to screen the melted raw material through its own structural characteristics, the second heating ring 3 is installed in the mixing cabin main body 1 to provide melting temperature for the mixed raw material inside, the stirring shaft 4 is fixed in the mixing cabin main body 1 through the cooperation of the fixed bearing 41 and the inner wall between the fixed cross plate 13, which can mix and stir the raw material in the mixing cabin main body 1 by rotating the stirring shaft 4, the mixing support 5 is installed below the mixing cabin main body 1 to support it, the motor 6 provides output force for the rotation of the stirring shaft 4, the granulator main body 7 is installed on one side of the mixing cabin main body 1 to cool and granulate the raw material discharged from the mixing cabin main body 1, the granulator support 8 supports the granulator main body 7, and the material guide elbow 9 connects the discharge hole 14 and the granulator main body 7, so that the raw material discharged from the mixing cabin main body 1 can directly enter the granulator main body 7 for cooling and granulation processing.

[0038] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A 3D printing material mixing device, comprising a mixing chamber body (1), a feeding cylinder (11) fixed above the mixing chamber body (1), the feeding cylinder (11) and the mixing chamber body (1) communicating with each other, a limiting ring (12) fixed above the feeding cylinder (11), and a first heating ring (2) installed between the inner walls of the feeding cylinder (11), characterized in that: The top surface of the first heating ring (2) is in contact with the top surface of the limiting ring (12), the bottom surface of the first heating ring (2) is fixed with a heating screen (21), the heating screen (21) is located above the opening of the mixing cabin body (1), the inside of the cylinder wall of the mixing cabin body (1) is provided with a second heating ring (3), and the inner wall of the upper opening of the mixing cabin body (1) is provided with a fixed cross plate (13). 2.The 3D printing raw material mixing device of claim 1, wherein: The inside of the mixing cabin body (1) is provided with a stirring shaft (4), both ends of the stirring shaft (4) are fixed with mounting bearings (41), one of the mounting bearings (41) is connected with the bottom center of the fixed cross plate (13), and the other mounting bearing (41) is connected with the inside bottom center of the mixing cabin body (1), and the outer wall of the stirring shaft (4) is fixed with stirring blades (42). 3.The 3D printing raw material mixing device of claim 2, wherein: The inner wall bottom of the mixing cabin body (1) is provided with a discharge hole (14) near one side edge, and the lower part of the mixing cabin body (1) is provided with a mixing support (5). 4.The 3D printing raw material mixing device of claim 3, wherein: The lower center of the mixing cabin body (1) is fixed with a motor (6), the output shaft of the motor (6) penetrates the mixing cabin body (1) and the mounting bearing (41), and the shaft center of the stirring shaft (4) is connected.

5. The 3D printing raw material mixing device according to claim 4, characterized in that: One side of the mixing cabin body (1) is provided with a granulator body (7), and the lower part of the granulator body (7) is provided with a granule support (8). 6.The 3D printing raw material mixing device of claim 5, wherein: The outer wall of the feeding port of the granulator body (7) is provided with a material guiding elbow (9), and one end of the material guiding elbow (9) is clamped with the inner wall of the discharge hole (14).

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