Bidirectional sand paving device of sand mold 3D printer

Abstract

The utility model relates to the technical field of 3D printing, and discloses a sand mold 3D printer bidirectional sand paving device which comprises a left mounting support and a right mounting support which are oppositely distributed, a side protection plate is arranged between the backs of the left mounting support and the right mounting support, a sand hopper plate is arranged between the interiors of the left mounting support and the right mounting support, and an inclined sand hopper plate is arranged on the opposite side of the sand hopper plate. According to the scheme, due to the design of bidirectional sand paving, the printing efficiency is remarkably improved, forward sand paving operation and backward sand paving operation can be achieved at the same time, multiple layers can be covered by adding sand at a time, the sand paving efficiency is improved, and the sand paving efficiency is improved. The waiting time generated by sand adding in the printing process is greatly shortened, and the overall printing efficiency is greatly improved. The design is simple and practical, control over the sand supply process can be completed through one sand hopper and one roller, the bidirectional sand paving function can be easily achieved through the arrangement of the bidirectional inclined sand scraping plates, complexity is reduced, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a two-way sand laying device for a sand mold 3D printer. Background Art

[0002] In the process of 3D printing of foundry sand molds, the sand laying equipment of the 3D printer plays a pivotal role. Its core function is to lay the sand layer evenly on the workbench. After a layer is laid, the print head can accurately perform the printing task on it. This process is repeated, which places strict requirements on the smoothness and wrinkle-free characteristics of the sand surface.

[0003] Sand spreaders can be divided into two categories according to their working principles: one-way sand spreaders and two-way sand spreaders. After one layer of sand is laid, the one-way sand spreader needs to run empty, which affects the speed and accuracy of printing to a certain extent. In contrast, the two-way sand spreader doubles the efficiency by laying in both directions. However, this design usually requires two sand discharge ports, which makes the structure complicated and takes up more space.

[0004] At present, the one-way sanding device needs to run empty once, and the printing speed is slow and the precision is not high; the two-way sanding device generally needs to have two sand supply ports, or a reversing mechanism. This kind of sand supply distribution path is long and the structure is complex, which increases the difficulty and cost of implementation.

[0005] Therefore, based on the above technical problems, it is necessary for technicians in this field to develop a two-way sand laying device for a sand mold 3D printer. Utility Model Content

[0006] The utility model aims to provide a two-way sand-laying device for a sand mold 3D printer to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A technical solution for a bidirectional sand-laying device of a sand mold 3D printer, comprising a left mounting support and a right mounting support which are relatively distributed, a side guard plate being arranged between the backs of the left mounting support and the right mounting support, and a sand hopper plate being arranged between the insides, an inclined sand hopper plate being arranged on the opposite side of the sand hopper plate, a left sand hopper end plate and a right sand hopper end plate being arranged on both sides of the inclined sand hopper plate and the sand hopper plate, respectively, and a feeding roller being arranged between the sand hopper plate and the inclined sand hopper plate.

[0009] As a preferred technical solution, an adjustment plate is provided below the feed roller, and a sand scraping plate is symmetrically provided below the adjustment plate.

[0010] As a preferred technical solution, a motor is disposed on the outer wall of the right mounting support, a reducer is connected to the output end of the motor, and the output end of the reducer is connected to the feeding roller.

[0011] As a preferred technical solution, the shaft end of the feeding roller is connected to the left mounting support and the right mounting support through a bearing seat.

[0012] As a preferred technical solution, a vibrator is provided on the back side of the inclined sand hopper plate.

[0013] As a preferred technical solution, the left mounting support, the right mounting support, the side guard plate, the inclined sand bucket plate, the left sand bucket end plate, the right sand bucket end plate, the sand bucket plate and the scraper plate are all assembled and connected by bolts.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model is a two-way sand-laying device for a sand mold 3D printer. The sand storage hopper area is composed of multiple components, and a rotating feeding roller is arranged inside the sand storage hopper to accurately control the amount of sand fed. The design allows for the storage of multiple layers of sand to meet the needs of continuous printing. Multiple sand-laying operations can be achieved with a single load, which is particularly suitable for efficient and continuous sand-laying printing processes. In order to solve the problem of looseness that may occur after the sand is scattered, the design of the two-way oblique scraper plate cleverly applies appropriate vertical pressure through the inclined scraper plate, thereby ensuring that the compactness of the sand layer and the standard of sand mold quality hardness are achieved.

[0016] This simple two-way inclined plate scraping structure not only realizes the function of two-way sand spreading, but also ensures the stability of sand mold quality. Through this structure, it effectively reduces abnormal conditions such as loose sand layer, further ensures the density of sand layer and the quality of sand mold hardness, and significantly improves the qualified rate of products.

[0017] The bidirectional sand-laying design of this solution significantly improves the printing efficiency. It can realize forward and backward sand-laying operations at the same time. Multiple layers can be covered with a single sand-laying operation, which greatly reduces the waiting time caused by sand-laying during the printing process and greatly improves the overall printing efficiency.

[0018] The design is simple and practical. The sand supply process can be controlled through a sand hopper and a drum. Combined with the setting of a bidirectional oblique scraper sand plate, the bidirectional sanding function can be easily realized, which reduces complexity and enhances practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a two-way sand-laying device for a sand-type 3D printer;

[0020] Figure 2 It is a schematic diagram of the partial cross-sectional structure of a two-way sand-laying device of a sand-type 3D printer;

[0021] Figure 3 This is a schematic diagram of the front structure of a two-way sand-laying device for a sand mold 3D printer.

[0022] In the accompanying drawings: 1. left mounting support; 2. right mounting support; 3. feeding roller; 4. side guard plate; 5. inclined sand hopper plate; 6. adjustment plate; 7. left sand hopper end plate; 8. right sand hopper end plate; 9. sand hopper plate; 10. scraper plate; 11. reducer; 12. motor; 13. vibrator; 14. bearing seat. DETAILED DESCRIPTION

[0023] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by illustrating examples of the present invention.

[0024] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model provides a technical solution for a two-way sand-laying device of a sand mold 3D printer: it includes a left mounting support 1 and a right mounting support 2 which are relatively distributed, a side guard plate 4 is arranged between the backs of the left mounting support 1 and the right mounting support 2, specifically, the side guard plate 4 can reduce the weight of the component by designing a plurality of holes, and the opening styles are oblong holes, square holes, round holes, etc., and a sand hopper plate 9 is arranged between the inside, an oblique sand hopper plate 5 is arranged on the opposite side of the sand hopper plate 9, a vibrator 13 is arranged on the back of the oblique sand hopper plate 5, a left sand hopper end plate 7 and a right sand hopper end plate 8 are arranged on both sides of the oblique sand hopper plate 5 and the sand hopper plate 9, respectively, a feeding roller 3 is arranged between the sand hopper plate 9 and the oblique sand hopper plate 5, and the shaft end of the feeding roller 3 is connected to the left mounting support 1 and the right mounting support 2 The feeding roller 3 is connected through a bearing seat 14, and an adjusting plate 6 is arranged below the feeding roller 3. Specifically, the adjusting plate 6 is provided with an oblong hole and is installed on the sand bucket plate 9, and the curved arc sand supply gap can be adjusted. A scraper plate 10 is symmetrically arranged below the adjusting plate 6. A motor 12 is arranged on the outer wall of the right mounting support 2, and a reducer 11 is connected to the output end of the motor 12. The output end of the reducer 11 is connected to the feeding roller 3. The left mounting support 1, the right mounting support 2, the side guard plate 4, the oblique sand bucket plate 5, the left sand bucket end plate 7, the right sand bucket end plate 8, the sand bucket plate 9 and the scraper plate 10 are all assembled and connected by bolts. Specifically, the oblique sand bucket plate 5, the left sand bucket end plate 7, the right sand bucket end plate 8, and the sand bucket plate 9 can also be welded into an integral component, which is connected by welding.

[0025] According to the above scheme, in this embodiment, the inclined sand hopper plate 5, the left sand hopper end plate 7, the right sand hopper end plate 8, and the sand hopper plate 9 enclose four sides to form a sand hopper to store sand materials. The motor 12 drives the reducer 11 to act on the feeding roller 3. The feeding roller 3 is arranged below the sand hopper. Through the curved arc gap, the sand materials are driven to be fed when rotating. When the sand materials stop rotating, the curved arc channel prevents the sand materials from continuing to be fed. The adjustment plate can adjust the size of the curved arc gap and adjust the sand supply. The sand is discharged along the sand dropout port in the middle of the scraper plate.

[0026] The working principle and use process of the utility model: After the various components of the solution are assembled in sequence, all the working steps can be completed according to the above implementation methods in sequence according to actual needs.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0030] According to the embodiments of the present invention as described above, these embodiments do not describe all the details in detail, nor do they limit the present invention to specific embodiments. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that technicians in the relevant technical field can make good use of the present invention and the modified use based on the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A two-way sand laying device for a sand mold 3D printer, characterized in that: The invention comprises a left mounting support (1) and a right mounting support (2) which are arranged in a relative shape, a side guard plate (4) is arranged between the backs of the left mounting support (1) and the right mounting support (2), and a sand bucket plate (9) is arranged inside, an inclined sand bucket plate (5) is arranged on the opposite side of the sand bucket plate (9), a left sand bucket end plate (7) and a right sand bucket end plate (8) are arranged on both sides of the inclined sand bucket plate (5) and the sand bucket plate (9), and a feeding roller (3) is arranged between the sand bucket plate (9) and the inclined sand bucket plate (5).

2. A two-way sand-laying device for a sand-type 3D printer according to claim 1, characterized in that: An adjustment plate (6) is arranged below the feeding roller (3), and a sand scraping plate (10) is symmetrically arranged below the adjustment plate (6).

3. A two-way sand-laying device for a sand-type 3D printer according to claim 2, characterized in that: The outer wall of the right mounting support (2) is provided with a motor (12), the output end of the motor (12) is connected to a reducer (11), and the output end of the reducer (11) is connected to a feeding roller (3).

4. A two-way sand-laying device for a sand-type 3D printer according to claim 3, characterized in that: The shaft end of the feeding roller (3) is connected to the left mounting support (1) and the right mounting support (2) via a bearing seat (14).

5. A two-way sand-laying device for a sand-type 3D printer according to claim 1, characterized in that: A vibrator (13) is arranged on the back side of the inclined sand bucket plate (5).

6. A two-way sand-laying device for a sand-type 3D printer according to claim 2, characterized in that: The left mounting support (1), the right mounting support (2), the side guard plate (4), the inclined sand bucket plate (5), the left sand bucket end plate (7), the right sand bucket end plate (8), the sand bucket plate (9) and the sand scraping plate (10) are all assembled and connected by bolts.

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