Raw material proportioning device for 3D additive material

Abstract

The raw material proportioning device comprises a mounting base, a material mixing tank is mounted on the top end face of the mounting base, feeding boxes are symmetrically arranged on the top end face of the material mixing tank, material storage barrels are symmetrically arranged on the top end faces of the two feeding boxes, a material discharging opening is fixed in the middle of the bottom end face of the material mixing tank, and a material discharging opening is formed in the middle of the bottom end face of the material mixing tank. A driving motor is installed on the top end face of the inner side of the material mixing tank, a stirring shaft is installed at the output end of the driving motor, and a first functional assembly is arranged in the material mixing tank; through the designed first functional assembly, raw materials attached to the inner wall of the mixing tank can be conveniently cleaned, so that the powdery raw materials can be fully mixed and stirred in the mixing tank, the proportioning result of the raw materials is conveniently improved, meanwhile, the interior of the mixing tank is also conveniently protected, and the service life of the mixing tank is prolonged. The situation that some plastic raw materials impact and damage the inner wall of the mixing tank during mixing and stirring can be avoided, the service life of the mixing tank can be prolonged conveniently, and the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a raw material proportioning device for 3D material addition. Background Art

[0002] 3D printing is a type of rapid prototyping technology, also known as additive manufacturing. It is a technology that uses digital model files as the basis, uses powdered metal or plastic and other bondable materials, and constructs objects by printing layer by layer. 3D printing is usually achieved using a digital technology material printer. It is often used to make models in the fields of mold manufacturing, industrial design, etc., and later gradually used for the direct manufacturing of some products. There are already parts printed using this technology. The raw materials for 3D printing need to be mixed by a special raw material proportioning device when in use. The existing raw material proportioning device has some powdered raw materials when being mixed inside the mixing tube. Some powdered raw materials will adhere to the inner wall of the mixing tank, which will affect the raw material proportioning results. There are limitations when using it, and there is room for improvement. Utility Model Content

[0003] The purpose of the utility model is to provide a raw material proportioning device for 3D additive manufacturing to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a D additive raw material proportioning device, comprising a mounting seat, a mixing tank is installed on the top surface of the mounting seat, a feed box is symmetrically arranged on the top surface of the mixing tank, and storage barrels are symmetrically arranged on the top surfaces of two feed boxes, a discharge port is fixed in the middle of the bottom end surface of the mixing tank, a drive motor is installed on the inner top surface of the mixing tank, a stirring shaft is installed on the output end of the drive motor, and a first functional component is arranged inside the mixing tank.

[0005] The first functional component includes an inner lining tube installed inside the mixing tank, and the outer surface of the mixing tank is symmetrically provided with through grooves, a mounting plate is fixed at the opening of the through grooves, a limiting hole is provided in the middle of the surface of the mounting plate, a first limiting rod is penetrated inside the limiting hole, a connecting plate is installed at one end of the first limiting rod, one side surface of the connecting plate is fitted and connected to the surface of the inner lining tube, and a connecting spring is symmetrically installed between the other side surface of the first limiting rod and the inner surface of the mounting plate.

[0006] As a further preferred embodiment of the present technical solution, there is a distance between the surface of the inner lining tube and the inner wall of the mixing tank, and both ends of the inner lining tube are fixedly connected to the inner surface of the mixing tank.

[0007] As a further preferred embodiment of the present technical solution, the cross section of the first limiting rod is "L"-shaped, and the surface width of the connecting plate is smaller than the width of the opening of the through slot.

[0008] As a further preferred embodiment of the present technical solution, a control box is installed on one side of the mixing tank, and a protective cover is provided on the outside of the driving motor.

[0009] As a further preferred embodiment of the present technical solution, a second functional component is provided at the inner bottom of the mixing tank, the second functional component includes a limit plate symmetrically arranged at the inner bottom of the mixing tank, and the inner bottom surface of the mixing tank is symmetrically provided with fixing grooves, and torsion springs are fixed between the bottom surfaces at both ends of the limit plate and the inside of the fixing grooves, mounting holes are installed at the middle edges of the bottom end surfaces of the two limit plates, and the bottom end surface of the mixing tank is symmetrically provided with a second limit rod for the mounting hole to pass through.

[0010] As a further preferred embodiment of the present technical solution, the cross-section of the two limiting plates in a top view is semi-circular, and anti-collision strips are provided at the edges of the bottom end surfaces of the limiting plates.

[0011] The utility model provides a raw material proportioning device for 3D additive manufacturing, which has the following beneficial effects:

[0012] 1. The utility model is convenient for cleaning the raw materials attached to the inner wall of the mixing tank through the first functional component designed, so that the powdered raw materials can be fully mixed and stirred inside the mixing tank, which is convenient for improving the proportioning result of the raw materials. At the same time, it is also convenient for protecting the inside of the mixing tank, which can prevent some plastic raw materials from causing impact damage to the inner wall of the mixing tank during mixing and stirring, which is convenient for extending the service life of the mixing tank and has good practicality.

[0013] 2. The utility model is designed with a second functional component, which facilitates the cleaning of raw materials at the dead corner at the bottom of the mixing tube, so that all the mixed raw materials can be discharged. The operation is convenient and quick, and the waste of raw materials is avoided. The functionality is improved and the practical effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the mixing tank in the utility model;

[0016] Figure 3 for Figure 2 A magnified schematic diagram of the middle A area;

[0017] In the figure: 1. mounting base; 2. mixing tank; 3. discharge port; 4. feed box; 5. storage barrel; 6. control box; 7. stirring shaft; 8. driving motor; 9. lining tube; 10. through groove; 11. mounting plate; 12. limiting hole; 13. first limiting rod; 14. connecting plate; 15. connecting spring; 16. limiting plate; 17. mounting hole; 18. second limiting rod; 19. fixing groove; 20. torsion spring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] The utility model provides a technical solution: Figure 1 and Figure 2 As shown, in this embodiment, a raw material proportioning device for 3D additive includes a mounting seat 1, a mixing tank 2 is mounted on the top surface of the mounting seat 1, a feed box 4 is symmetrically arranged on the top surface of the mixing tank 2, a storage barrel 5 is symmetrically arranged on the top surface of the two feed boxes 4, a discharge port 3 is fixed in the middle of the bottom end surface of the mixing tank 2, a drive motor 8 is mounted on the inner top surface of the mixing tank 2, a stirring shaft 7 is mounted on the output end of the drive motor 8, a control box 6 is mounted on one side of the mixing tank 2, a protective cover is provided on the outside of the drive motor 8, a first functional component is arranged inside the mixing tank 2, the first functional component includes an inner lining tube 9 installed inside the mixing tank 2, there is a distance between the surface of the inner lining tube 9 and the inner wall of the mixing tank 2, both ends of the inner lining tube 9 are fixedly connected to the inner surface of the mixing tank 2, and the outer surface of the mixing tank 2 A through groove 10 is symmetrically provided on the surface, and a mounting plate 11 is fixed at the opening of the through groove 10. A limiting hole 12 is provided in the middle of the surface of the mounting plate 11, and a first limiting rod 13 is provided inside the limiting hole 12. A connecting plate 14 is installed at one end of the first limiting rod 13. The cross-section of the first limiting rod 13 is "L"-shaped. The surface width of the connecting plate 14 is smaller than the width of the opening of the through groove 10. One side surface of the connecting plate 14 is fitted and connected to the surface of the inner liner 9, and a connecting spring 15 is symmetrically installed between the other side surface of the first limiting rod 13 and the inner surface of the mounting plate 11, which is convenient for striking the inner liner 9 inside the mixing tank 2, so that some powdered raw materials are not easily attached to the surface of the inner liner 9, which is convenient for fully mixing and stirring the powdered raw materials, thereby improving functionality and having better practicality.

[0020] like Figure 2 and Figure 3As shown, the inner bottom of the mixing tank 2 is provided with a second functional component, and the second functional component includes a limit plate 16 symmetrically arranged on the inner bottom of the mixing tank 2, and a fixing groove 19 is symmetrically provided on the inner bottom surface of the mixing tank 2. A torsion spring 20 is fixed between the bottom surfaces of both ends of the limit plate 16 and the inside of the fixing groove 19, and mounting holes 17 are installed at the middle edges of the bottom end surfaces of the two limit plates 16. The bottom end surface of the mixing tank 2 is symmetrically provided with a second limit rod 18 for the mounting hole 17 to pass through. The top cross-section of the two limit plates 16 is semi-circular, and an anti-collision strip is provided at the edge of the bottom end surface of the limit plate 16, which is convenient for cleaning the raw materials in the dead corner of the inner bottom of the mixing tank 2, so that there will be no accumulation of raw materials in the dead corner, so that the raw materials with good proportions can be discharged completely, avoiding the waste of raw materials, and having a good practical effect.

[0021] The utility model provides a raw material proportioning device for 3D additive manufacturing, and its specific working principle is as follows: when the utility model proportions and mixes some powdered raw materials, the raw materials will be mixed and stirred inside the mixing tank 2, and some powdered raw materials will adhere to the inner wall of the inner liner 9. At this time, the worker pulls one end of the first limit rod 13, so that the other end of the first limit rod 13 drives the connecting plate 14 to move toward the inside of the through groove 10, and gradually approaches the surface of the mounting plate 11. At this time, the connecting spring 15 between the connecting plate 14 and the mounting plate 11 is squeezed and generates a rebound force. When the worker loosens one end of the first limit rod 13, the rebound force generated by the connecting spring 15 will act on the connecting plate 14, so that the connecting plate 14 can hit the surface of the inner liner 9. At this time, the surface of the inner liner 9 will vibrate, so the raw materials attached to the inner wall of the inner liner 9 will slide to the inner bottom of the mixing tank 2, which is convenient and quick to operate, and is convenient for fully mixing and stirring the powdered raw materials. The second limiting rod 18 is easy to operate, and the second limiting rod 18 is easy to operate, so the worker needs to manually discharge the raw materials. First, hold one end of the second limiting rod 18 and push the second limiting rod 18 to move inside the mounting hole 17. At this time, the other end of the second limiting rod 18 will push the limiting plate 16 at the bottom of the inner side of the mixing tank 2 to move, and then the limiting plate 16 will change its inclination angle through the torsion spring 20. Subsequently, the raw materials on the surface of the limiting plate 16 will slide toward the opening of the discharge port 3 and be discharged through the discharge port 3. After all the raw materials on the surface of the limiting plate 16 are discharged, one end of the second limiting rod 18 can be loosened. At this time, the rebound force generated by the torsion spring 20 in the fixing groove 19 will act on the limiting plate 16, so that the limiting plate 16 can rebound and reset. It is simple and easy to operate, which is convenient for all the raw materials in the mixing tank 2 to be discharged, and avoids the situation of causing waste of raw materials, and has a good practical effect.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A raw material proportioning device for 3D additive manufacturing, comprising a mounting seat (1), a mixing tank (2) being mounted on the top surface of the mounting seat (1), a feed box (4) being symmetrically arranged on the top surface of the mixing tank (2), a material storage barrel (5) being symmetrically arranged on the top surfaces of two feed boxes (4), a discharge port (3) being fixed at the middle of the bottom surface of the mixing tank (2), a drive motor (8) being mounted on the inner top surface of the mixing tank (2), and a stirring shaft (7) being mounted on the output end of the drive motor (8), characterized in that: The mixing tank (2) is provided with a first functional component inside; The first functional component includes an inner lining tube (9) installed inside the mixing tank (2), and the outer surface of the mixing tank (2) is symmetrically provided with through grooves (10), and a mounting plate (11) is fixed at the opening of the through groove (10), and a limiting hole (12) is provided in the middle of the surface of the mounting plate (11), and a first limiting rod (13) is arranged inside the limiting hole (12), and a connecting plate (14) is installed at one end of the first limiting rod (13), and one side surface of the connecting plate (14) is fitted and connected to the surface of the inner lining tube (9), and a connecting spring (15) is symmetrically installed between the other side surface of the first limiting rod (13) and the inner surface of the mounting plate (11).

2. A raw material proportioning device for 3D additive manufacturing according to claim 1, characterized in that: There is a distance between the surface of the inner lining tube (9) and the inner wall of the mixing tank (2), and both ends of the inner lining tube (9) are fixedly connected to the inner surface of the mixing tank (2).

3. A raw material proportioning device for 3D additive manufacturing according to claim 1, characterized in that: The cross section of the first limiting rod (13) is "L"-shaped, and the surface width of the connecting plate (14) is smaller than the width of the opening of the through slot (10).

4. A 3D additive raw material mixing device according to claim 1, characterized in that: A control box (6) is installed on one side of the mixing tank (2), and a protective cover is provided on the outside of the driving motor (8).

5. A raw material proportioning device for 3D additive manufacturing according to claim 4, characterized in that: The inner bottom of the mixing tank (2) is provided with a second functional component, the second functional component comprises a limit plate (16) symmetrically arranged on the inner bottom of the mixing tank (2), the inner bottom surface of the mixing tank (2) is symmetrically provided with a fixing groove (19), a torsion spring (20) is fixed between the bottom surfaces at both ends of the limit plate (16) and the inside of the fixing groove (19), the middle edges of the bottom end surfaces of the two limit plates (16) are both provided with a mounting hole (17), and the bottom end surface of the mixing tank (2) is symmetrically provided with a second limit rod (18) for the mounting hole (17) to pass through.

6. A raw material proportioning device for 3D additive manufacturing according to claim 5, characterized in that: The cross-section of the two limiting plates (16) when viewed from above is semi-circular, and an anti-collision strip is provided at the edge of the bottom end surface of the limiting plates (16).

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