Rapid curing and heating device for sand mold 3D printer

Abstract

The utility model relates to the technical field of 3D printing, and discloses a rapid curing heating device of a sand mold 3D printer, which comprises cross beams, a spray head mounting beam frame arranged between the cross beams, a spray head assembly box arranged below the spray head mounting beam frame, a sand box arranged at the bottom of the spray head assembly box, and a lamp mounting plate arranged at the lower part of the spray head assembly box, a heating lamp is arranged between the lamp mounting plates, a heat insulation lampshade is arranged in the heating lamp, a lampshade end plate is arranged at the outer end of the heat insulation lampshade, and a lamp tube wick is arranged in the heat insulation lampshade. In the reciprocating motion ink jet process, a sand layer and a binder can be heated at the same time, heating and rapid curing are conducted in time, the sand mold baking and standing time is saved, the printing and casting efficiency is improved, a heating lamp conducts baking in time after ink jet, the sand mold can be rapidly bonded, formed and cured, and stable and reliable quality is ensured. The technical problems of low adhesive curing speed, low printing efficiency and low sand mold curing quality in the sand-paving ink-jet printing process in the prior art can be effectively solved, the actual requirements are met, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a rapid curing and heating device for a sand type 3D printer. Background Art

[0002] With the continuous advancement of 3D printing technology, the application of sand mold 3D printers in casting production has gradually become popular. Many complex parts sand molds have been completed by printers, effectively achieving the goal of production casting. At present, the main process of sand mold printing is to lay a layer of sand first, and then the print head performs inkjet printing. After completing one layer, this process is repeated to lay sand and print the next layer, layer by layer, until the sand mold is printed. The printed sand mold is then sent to the molding box for 24 hours of baking and static to ensure that the part reaches the required strength. After that, the sand is cleaned and subsequent treatment is carried out, and finally the part is cast.

[0003] To solve the problem of slow sand curing speed and low quality, the existing methods are to preheat the raw sand, heat and insulate the sand box, and heat the falling sand during the sand laying process. However, the above solutions usually take a long time to cure or are difficult to harden. Therefore, it is necessary to bake and stand for a certain period of time to ensure that the binder is completely cured. Otherwise, collapse may occur during the cleaning process. Especially in seasons with lower temperatures, the waiting time required will be longer, which leads to reduced printing efficiency and cannot meet the production needs of machine printing and casting.

[0004] Therefore, based on the above technical problems, it is necessary for technicians in this field to develop a sand mold 3D printer rapid curing heating device. Utility Model Content

[0005] The utility model aims to provide a sand mold 3D printer rapid curing heating device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A technical solution for a rapid curing heating device for a sand mold 3D printer, comprising a crossbeam, a nozzle mounting beam frame is arranged between the crossbeams, a nozzle assembly box is arranged below the nozzle mounting beam frame, a sand box is arranged at the bottom of the nozzle assembly box, a lamp mounting plate is arranged at the lower part of the nozzle assembly box, a heating lamp is arranged between the lamp mounting plates, a heat insulating lampshade is arranged inside the heating lampshade, a lampshade end plate is arranged at the outer end of the heat insulating lampshade, and a lamp tube wick is arranged inside the heat insulating lampshade.

[0008] As a preferred technical solution, a semiconductor cooler is arranged on the outside of the nozzle assembly box to reduce the temperature of components in the nozzle assembly box, and an acrylic plate is arranged on the outer wall of the nozzle assembly box to observe the working conditions of the components in the nozzle assembly box.

[0009] As a preferred technical solution, a slide rail slider assembly is provided between the nozzle mounting beam and the cross beam, and a protective seat is provided on the nozzle mounting beam to prevent the nozzle mounting beam from falling due to failure of the slide rail slider assembly.

[0010] As a preferred technical solution, synchronous wheels are arranged opposite to each other on the nozzle mounting beam, a synchronous belt is arranged between the two synchronous wheels, and a driving motor is connected to one of the synchronous wheel shaft ends.

[0011] As a preferred technical solution, a connecting slide is slidably connected to the nozzle mounting beam, the connecting slide is connected to a synchronous belt, a connecting plate is installed under the connecting slide, the connecting plate is connected to the nozzle assembly box through a differential head seat, and the differential head seat is used to fine-tune the relative installation position of the connecting plate and the nozzle assembly box.

[0012] As a preferred technical solution, a support plate is provided on the nozzle mounting beam, a drag chain is provided on the support plate, cables are passed through the drag chain to protect the cables, a drag chain cover is provided outside the drag chain, and a cable support cover is provided between the drag chain and the nozzle assembly box.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is a rapid curing heating device for a sand mold 3D printer. The sand layer and the binder can be heated simultaneously during the reciprocating inkjet process, and the sand mold can be quickly heated and cured in time, saving the sand mold baking and standing time, and improving the printing and casting efficiency. The heating lamp is baked in time after inkjet, so that the sand mold can be quickly bonded, formed and cured, ensuring stable and reliable quality. The scheme has a novel structure and can effectively solve the technical problems of slow binder curing speed, low printing efficiency and low sand mold curing quality in the sand-laying inkjet printing process of the prior art, meet actual needs and improve practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a rapid curing and heating device for a sand mold 3D printer;

[0016] Figure 2 This is a schematic diagram of the front structure of a rapid curing and heating device for a sand mold 3D printer;

[0017] Figure 3 A schematic diagram of the structure of a nozzle assembly box of a sand mold 3D printer rapid curing and heating device;

[0018] Figure 4 This is a schematic diagram of the side structure of a rapid curing and heating device for a sand mold 3D printer;

[0019] Figure 5 This is a schematic diagram of the lamp tube and wick structure of a sand mold 3D printer rapid curing heating device.

[0020] In the accompanying drawings: 1. crossbeam; 2. slide rail slider assembly; 3. protective seat; 4. nozzle mounting beam; 5. drag chain; 6. drag chain cover; 7. drive motor; 8. cable support cover; 9. connecting slide; 10. support plate; 11. synchronous wheel; 12. synchronous belt; 13. nozzle assembly box; 14. sand box; 15. lamp mounting plate; 16. heating lamp; 17. connecting plate; 18. acrylic plate; 19. heat-insulating lampshade; 20. lamp tube wick; 21. lampshade end plate; 22. semiconductor refrigerator; 23. differential head seat. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the utility model provides a technical solution for a rapid curing heating device for a sand mold 3D printer: comprising a crossbeam 1. A nozzle mounting beam frame 4 is provided between the crossbeams 1. A nozzle assembly box 13 is provided below the nozzle mounting beam frame 4. A sand box 14 is installed at the bottom of the nozzle assembly box 13. A lamp mounting plate 15 is provided at the lower part of the nozzle assembly box 13, on which a heating lamp 16 is installed. Specifically, the heating lamp 16 can be replaced by a laser heating device, which is a device that uses electricity or gas and has a heating effect. The heating lamp 16 is set on both sides of the nozzle assembly box 13 in this example, or it can be set on only one side and can be adjusted as needed. The heating lamp 16 can be connected and installed on one side of the nozzle mounting beam, corresponding to the drag chain. The heating lamp 16 is provided with a heat-insulating lampshade 19, and the outer end of the lampshade is equipped with a lampshade end plate 21, and the inside of the lampshade is installed with a lamp tube wick 20. Specifically, the lamp tube wick 20 can be a far-infrared quartz heating tube, or a carbon fiber heating tube or other element that can emit light or has a heating effect, and is set to 3 in this embodiment, and can be 1 or more lamp tube wicks 20.

[0023] The outer side of the nozzle assembly box 13 is provided with a semiconductor refrigerator 22, whose main function is to reduce the temperature of the components inside the nozzle assembly box 13. In addition, the outer wall of the nozzle assembly box 13 is also provided with an acrylic plate 18, which is mainly used to observe the working conditions of the components inside the nozzle assembly box 13.

[0024] A slide rail and slider assembly 2 is installed between the nozzle mounting beam 4 and the crossbeam 1. A protective seat 3 is provided on the nozzle mounting beam 4, and its main function is to prevent the nozzle mounting beam 4 from falling due to failure of the slide rail and slider assembly 2. At the same time, relative synchronous wheels 11 are also provided on the nozzle mounting beam 4, and a synchronous belt 12 is connected between the two synchronous wheels 11. The shaft end of one of the synchronous wheels 11 is connected to a driving motor 7. A connecting slide 9 is also slidably connected to the nozzle mounting beam 4, and the slide is connected to the synchronous belt 12. A connecting plate 17 is installed below the connecting slide 9, and the plate is connected to the nozzle assembly box 13 through a differential head seat 23. The main function of the differential head seat 23 is to fine-tune the relative installation position of the connecting plate 17 and the nozzle assembly box 13.

[0025] A support plate 10 is also provided on the nozzle mounting beam 4, on which a drag chain 5 is arranged. Cables are passed through the inside of the drag chain 5, mainly for protection. A drag chain cover 6 is provided outside the drag chain 5. In addition, a cable support cover 8 is provided between the drag chain 5 and the nozzle assembly box 13.

[0026] According to the above scheme, in this embodiment, the synchronous wheel 11 is driven by the driving motor 7 to rotate, and the synchronous belt 12 is transmitted to realize the reciprocating motion of the nozzle assembly box 13. During the reciprocating motion inkjet, the heating lamp 16 is started to heat the sand layer and the binder at the same time, and the sand layer and the binder are heated in time for rapid curing, which saves the sand mold baking and standing time and improves the printing and casting efficiency. The heating lamp is baked in time after inkjet, so that the sand mold can be quickly bonded, formed and cured, ensuring stable and reliable quality.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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 sand mold 3D printer rapid curing heating device, characterized in that: The invention comprises a crossbeam (1), a nozzle mounting beam frame (4) is arranged between the crossbeams (1), a nozzle assembly box (13) is arranged below the nozzle mounting beam frame (4), a sand box (14) is arranged at the bottom of the nozzle assembly box (13), a lamp mounting plate (15) is arranged at the lower part of the nozzle assembly box (13), a heating lamp (16) is arranged between the lamp mounting plates (15), a heat insulating lampshade (19) is arranged inside the heating lamp (16), a lampshade end plate (21) is arranged at the outer end of the heat insulating lampshade (19), and a lamp tube wick (20) is arranged inside the heat insulating lampshade (19).

2. A sand mold 3D printer rapid curing heating device according to claim 1, characterized in that: A semiconductor cooler (22) is arranged on the outside of the nozzle assembly box (13) for reducing the temperature of components in the nozzle assembly box (13); an acrylic plate (18) is arranged on the outer wall of the nozzle assembly box (13); the acrylic plate (18) is used to observe the working conditions of the components in the nozzle assembly box (13).

3. A sand mold 3D printer rapid curing and heating device according to claim 2, characterized in that: A slide rail and slider assembly (2) is arranged between the nozzle mounting beam frame (4) and the cross beam (1), and a protection seat (3) is arranged on the nozzle mounting beam frame (4) to prevent the nozzle mounting beam frame (4) from falling due to failure of the slide rail and slider assembly (2).

4. A sand mold 3D printer rapid curing and heating device according to claim 3, characterized in that: Synchronous wheels (11) are arranged opposite to each other on the nozzle mounting beam frame (4), a synchronous belt (12) is arranged between the two synchronous wheels (11), and a drive motor (7) is connected to the shaft end of one of the synchronous wheels (11).

5. A sand mold 3D printer rapid curing and heating device according to claim 4, characterized in that: A connecting slide (9) is slidably connected to the nozzle mounting beam (4), the connecting slide (9) is connected to a synchronous belt (12), a connecting plate (17) is installed below the connecting slide (9), the connecting plate (17) is connected to the nozzle assembly box (13) via a differential head seat (23), and the differential head seat (23) is used to fine-tune the relative installation position of the connecting plate (17) and the nozzle assembly box (13).

6. A sand mold 3D printer rapid curing and heating device according to claim 5, characterized in that: A support plate (10) is arranged on the nozzle mounting beam frame (4), a drag chain (5) is arranged on the support plate (10), cables are passed through the drag chain (5) to protect the cables, a drag chain cover (6) is arranged outside the drag chain (5), and a cable support cover (8) is arranged between the drag chain (5) and the nozzle assembly box (13).

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