3D printing workbox and printing device

Abstract

This application relates to a 3D printing work box, characterized by comprising a work box body (100) and a first opening and closing mechanism (200). A first sand leakage hole (110) is provided on the side wall of the work box body (100). The first opening and closing mechanism (200) is movably disposed on the outer side wall of the work box body (100). In a first state, the first opening and closing mechanism (200) blocks the first sand leakage hole (110). In a second state, the first opening and closing mechanism (200) is moved away from the first sand leakage hole (110). This application also discloses a 3D printing device. This solution can solve the problems of current binder jet 3D printing equipment where the work box relies on a sand cleaning station for sand mold printing, resulting in low sand cleaning efficiency, large occupation of production space, and potential impact on the integrity of the sand core product due to sand leakage.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing equipment technology, and in particular to a 3D printing work box and printing equipment. Background Technology

[0002] With the popularization of this technology, the forming accuracy and efficiency of 3D printed products have become the core R&D focus of equipment manufacturers. In binder jet 3D printing equipment, the work box used to support the printed product adopts a combination structure of movable base plate and side plate, and the Z-axis printing process is realized by the lifting and lowering movement of the movable base plate. For the post-processing of sand-printed products, the existing process requires removing the entire workbox from the equipment and transporting it to a dedicated sand-cleaning station. This involves slowly lifting the base plate to allow the sand to flow out naturally, or manually separating the sand. Once the printed sand core reaches the specified hardness, it is then hoisted to the product storage area. This process not only relies on the dedicated sand-cleaning station, increasing the equipment's footprint in the production area, but also, to some extent, restricts the integration of the workbox's functions and operational efficiency. Therefore, it is essential to design a structure that enables sand leakage from the bottom of the side panel. This design aims to free the work box from dependence on the sand cleaning station, allowing it to independently complete sand cleaning and product hoisting operations, thereby optimizing the overall function of the work box and reducing the impact of supporting facilities on the production site. Summary of the Invention

[0003] Therefore, it is necessary to provide a 3D printing workbox and printing equipment to address the problems of low sand cleaning efficiency, large occupation of production space, and potential impact on the integrity of sand core products caused by the reliance on sand cleaning stations in the current binder jetting 3D printing equipment's workbox when processing sand mold printing products.

[0004] To solve the above problems, the present invention adopts the following technical solution: In a first aspect, this utility model discloses a 3D printing work box, including a work box body and a first opening and closing mechanism. The side wall of the work box body is provided with a first sand leakage hole. The first opening and closing mechanism is movably disposed on the outer side wall of the work box body. In a first state, the first opening and closing mechanism is blocked on the first sand leakage hole. In a second state, the first opening and closing mechanism is away from the first sand leakage hole.

[0005] In one embodiment, the first opening and closing mechanism includes a sand baffle and a driving mechanism, wherein the driving mechanism is driven to the sand baffle and drives the sand baffle to block or move away from the first sand leakage hole.

[0006] In one embodiment, the sand baffle is slidably disposed on the outer side wall of the working box body, and the driving mechanism drives the sand baffle to slide on the outer side wall to block or move away from the first sand leakage hole.

[0007] In one embodiment, a guide portion is provided on the outer side wall, and the sand baffle plate is guided and engaged with the guide portion.

[0008] In one embodiment, one side of the sand baffle is movably disposed on the outer side wall of the working box body, and the sand baffle is swung to block or move away from the first sand leakage hole.

[0009] In one embodiment, a maintenance cover is further included, which is disposed on the outer side wall of the working box body, and at least a portion of the maintenance cover covers the drive mechanism.

[0010] In one embodiment, a maintenance cover is further included, which is disposed on the outer side wall of the working box body, at least a portion of which covers the drive mechanism, and the sand baffle is guided and engaged with the maintenance cover.

[0011] In one embodiment, the side wall of the work box body is provided with a plurality of the first sand leakage holes spaced apart along the circumference, and the first sand leakage holes are located at the bottom of the side wall.

[0012] In one embodiment, the system further includes a lifting base plate and a second opening and closing mechanism that are slidably disposed within the main body of the work box. The lifting base plate has a second sand leakage hole, and the second opening and closing mechanism is movably disposed on the lifting base plate. The second opening and closing mechanism can be moved to block or move away from the second sand leakage hole.

[0013] Secondly, this utility model discloses a 3D printing device, including the 3D printing work box described above.

[0014] The technical solution adopted in this utility model can achieve the following beneficial effects: In the 3D printing workbox disclosed in this embodiment, during the 3D printing process, the first opening and closing mechanism 200 is in a first state, sealing the first sand leakage hole. This ensures the airtightness of the workbox body, prevents sand leakage, and provides a stable internal environment for 3D printing. This ensures the smooth progress of the printing process, improves print quality, and avoids printing defects or failures caused by sand leakage. When printing is complete and the sand cleaning stage begins, the first opening and closing mechanism switches to a second state, moving away from the first sand leakage hole, making the sand cleaning process efficient and convenient. Compared to traditional sand cleaning methods, there is no need to empty the entire sand box or use complex cleaning tools. Simply opening the first opening and closing mechanism allows the sand to be automatically discharged through the first sand leakage hole, greatly saving cleaning time and labor costs. Simultaneously, this sand cleaning method can more thoroughly clean the sand inside the workbox, reducing sand residue and preparing it for the next printing, thus improving the overall operating efficiency of the equipment. In addition, the work box has a simple and reasonable structural design, the movable setting of the first opening and closing mechanism 200 is easy to implement, and the materials used to make the work box body and the first opening and closing mechanism are common and low cost, which reduces the manufacturing cost of the entire 3D printed work box. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the 3D printing work box disclosed in an embodiment of the present utility model; Figure 2 for Figure 1 An explosion diagram; Figure 3 for Figure 1 A schematic diagram of the structure in the first state; Figure 4 for Figure 1 Structural diagram in the second state Figure 2 Explanation of reference numerals in the attached figures: 100-Work box body, 110-First sand leakage hole, 200-First opening and closing mechanism, 210-Sand baffle, 220-Drive mechanism, 300-Maintenance cover, 400-Lifting cover, 410-Second sand leakage hole. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0017] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] like Figures 1-4 As shown in the figure, this utility model embodiment discloses a 3D printing work box, which includes a work box body 100 and a first opening and closing mechanism 200.

[0020] The work box body 100 serves as the basic load-bearing structure of the entire device. Its shape is typically a regular cuboid or cube to facilitate installation and use. The work box body 100 is made of robust materials, such as sheet metal (e.g., stainless steel, aluminum alloy) or high-strength engineering plastics, to ensure sufficient strength and stability to withstand various forces during the 3D printing process and the pressure of the internal sand. A first sand-draining hole 110 is formed on the side wall of the work box body 100. The shape of the first sand-draining hole 110 can be circular, square, or other suitable for sand drainage. Its size and number are determined based on the dimensions of the work box body 100 and the actual sand-cleaning requirements, with the aim of allowing sand to smoothly exit the work box body 100 through these holes during the sand-cleaning process. The first opening and closing mechanism 200 is movably mounted on the outer side wall of the work box body 100. Its installation method can take various forms, such as being connected by a hinge so that the first opening and closing mechanism 200 can rotate around the hinge axis, thereby achieving the blocking and relocation of the first sand leakage hole 110; or being connected by a slider guide rail, in which the first opening and closing mechanism 200 is mounted on a slider, and the slider can slide on the guide rail, thereby controlling the relative position of the first opening and closing mechanism 200 and the first sand leakage hole 110 by sliding.

[0021] The material of the first opening and closing mechanism 200 also needs to have a certain strength and wear resistance to ensure that it will not be damaged during frequent opening and closing actions. When the first opening and closing mechanism 200 is in the first state, it can tightly seal the first sand leakage hole 110 to prevent sand from leaking out of the sand leakage hole during the 3D printing process and affecting the printing quality. This requires good sealing between the first opening and closing mechanism 200 and the first sand leakage hole 110, which can be achieved by setting sealing gaskets on the contact surface. When the 3D printing is completed and sand cleaning is required, the first opening and closing mechanism 200 is moved to the second state, i.e., away from the first sand leakage hole 110, by manual operation or with the help of an external driving device (such as a motor, cylinder, etc.). At this time, the first sand leakage hole 110 is fully opened, and the sand in the work box body 100 can be quickly discharged through these holes. As can be seen from the above, in the 3D printing workbox disclosed in this utility model embodiment, during the 3D printing process, the first opening and closing mechanism 200 is in the first state, sealing the first sand leakage hole 110, ensuring the sealing of the inside of the workbox body 100, preventing sand leakage, and providing a stable internal environment for 3D printing. This ensures the smooth progress of the printing process, improves printing quality, and avoids printing defects or failures caused by sand leakage. When printing is completed and the sand cleaning stage begins, the first opening and closing mechanism 200 switches to the second state, moving away from the first sand leakage hole 110, making the sand cleaning process efficient and convenient. Compared with traditional sand cleaning methods, there is no need to dump the sand in the workbox or use complex cleaning tools. Simply opening the first opening and closing mechanism 200 allows the sand to be automatically discharged through the first sand leakage hole 110, greatly saving sand cleaning time and labor costs. At the same time, this sand cleaning method can more thoroughly clean the sand in the workbox, reduce sand residue, and fully prepare for the next printing, improving the overall operating efficiency of the equipment. In addition, the work box has a simple and reasonable structural design, the movable setting of the first opening and closing mechanism 200 is easy to implement, and the materials used to make the work box body 100 and the first opening and closing mechanism 200 are common and low cost, which reduces the manufacturing cost of the entire 3D printed work box.

[0022] In this embodiment of the invention, the first opening and closing mechanism 200 may include a sand baffle 210 and a driving mechanism 220. The driving mechanism 220 is driven and connected to the sand baffle 210, and drives the sand baffle 210 to block or move away from the first sand leakage hole 110. At this time, the sand baffle 210, as a component directly acting on the first sand leakage hole 110, can accurately achieve the blocking and opening actions. The addition of the driving mechanism 220 enables automated control, eliminating the need for manual operation and significantly improving the convenience and efficiency of operation. Whether it is quickly blocking the sand leakage hole during 3D printing to ensure a stable printing environment, or quickly opening the sand leakage hole during sand cleaning to accelerate sand discharge, the driving mechanism 220 can precisely control the movement of the sand baffle 210, reducing human error and saving labor costs.

[0023] In one optional embodiment, the sand baffle 210 is slidably disposed on the outer side wall of the work box body 100, and the drive mechanism 220 drives the sand baffle 210 to slide on the outer side wall to block or move away from the first sand leakage hole 110. The sliding design makes the movement trajectory of the sand baffle 210 more stable, ensuring its accurate alignment with the first sand leakage hole 110 and reducing problems such as poor sealing or sand leakage caused by movement deviation. Compared with other movement methods, the sliding structure is simple and has less wear, longer service life, and lower maintenance costs. When the drive mechanism 220 drives the sliding action, the power transmission is smooth, which can realize the uniform movement of the sand baffle 210, avoiding impact on the equipment caused by excessively fast or slow movements, further ensuring the stability of equipment operation. At the same time, the sliding process does not occupy too much space, making it suitable for working environments with limited space.

[0024] Furthermore, a guide portion can be provided on the outer wall, and the sand baffle 210 cooperates with the guide portion for guidance. The guide portion can provide precise guidance for the sliding of the sand baffle 210, completely avoiding problems such as deviation and jamming during the movement of the sand baffle 210, ensuring that it always moves along the preset trajectory, and greatly improving the reliability of the sand baffle 210's operation. Even after long-term and frequent use, the guide portion can maintain the movement accuracy of the sand baffle 210, ensuring the sealing of the first sand leakage hole 110, reducing the risk of sand leakage, and at the same time reducing the frictional wear between the sand baffle 210 and the outer wall of the working box body 100, extending the service life of the components.

[0025] In another alternative embodiment, one side of the sand baffle 210 is movably mounted on the outer wall of the work box body 100. The sand baffle 210 swings to block or move away from the first sand leakage hole 110. The swing-type design is more compact, requires less installation space, and is particularly suitable for situations where the outer wall of the work box has a complex layout. The sand baffle 210 swings with one side as a fulcrum, making its movement flexible and rapid, and enabling it to quickly switch from blocking to opening, thus improving the response speed of sand removal or sealing. In addition, the swing structure has fewer parts, is easier to manufacture and assemble, is more economical, and is simple to maintain, making it easy to troubleshoot and repair in case of failure. The 3D printing workbox disclosed in this embodiment may further include a maintenance cover 300. The maintenance cover 300 is disposed on the outer side wall of the workbox body 100, and at least a portion of the maintenance cover 300 covers the drive mechanism 220. The maintenance cover 300 provides effective protection for the drive mechanism 220, preventing external dust, sand, moisture, and other impurities from entering the drive mechanism 220, avoiding impurities from affecting the normal operation of the drive components, reducing the probability of malfunctions, and extending the service life of the drive mechanism 220. At the same time, the maintenance cover 300 also prevents operators from accidentally touching the drive mechanism 220 during equipment operation, improving equipment safety. When it is necessary to inspect or maintain the drive mechanism 220, the maintenance cover 300 can be easily removed, providing convenience for maintenance work and reducing maintenance difficulty and time costs.

[0026] In another optional embodiment, the 3D printing workbox disclosed in this utility model embodiment may further include a maintenance cover plate 300. The maintenance cover plate 300 is disposed on the outer side wall of the workbox body 100, and at least a portion of the maintenance cover plate 300 covers the drive mechanism 220. The sand baffle plate 210 and the maintenance cover plate 300 are guided together. In this case, the maintenance cover plate 300 not only has a protective function but also forms a guiding engagement with the sand baffle plate 210, achieving multiple uses from a single plate. This simplifies the overall structure of the equipment, reduces the number of parts, and lowers manufacturing costs and assembly complexity. The guiding engagement between the sand baffle plate 210 and the maintenance cover plate 300 ensures its motion accuracy. Simultaneously, the maintenance cover plate 300 makes the movement of the sand baffle plate 210 more stable, avoiding the space occupation and structural complexity problems that may result from additional guiding components, and making the layout of the outer wall of the workbox simpler and more reasonable.

[0027] In this embodiment of the invention, the sidewall of the work box body 100 is provided with a plurality of first sand-draining holes 110 spaced apart along the circumference, and the first sand-draining holes 110 can be located at the bottom of the sidewall. The circumferential distribution of multiple sand-draining holes greatly improves the efficiency of sand discharge, allowing sand in the work box to be discharged simultaneously from different directions, shortening the sand-cleaning time. Furthermore, placing the sand-draining holes at the bottom of the sidewall conforms to the gravity characteristics of the naturally falling sand, allowing the sand to be discharged more smoothly, reducing sand residue in the work box, and resulting in more thorough sand cleaning. At the same time, the circumferentially distributed sand-draining holes prevent localized blockages from affecting the discharge speed during the sand discharge process, ensuring an efficient and orderly sand-cleaning process and quickly preparing for the next printing.

[0028] The 3D printing workbox disclosed in this embodiment may further include a lifting base plate 400 slidably disposed within the workbox body 100 and a second opening and closing mechanism. The lifting base plate 400 has a second sand leakage hole 410. The second opening and closing mechanism is movably disposed on the lifting base plate 400, and can move to block or move away from the second sand leakage hole 410. The sliding function of the lifting base plate 400 allows its height within the workbox to be adjusted according to printing needs, adapting to the production of different sized printed parts and improving the versatility of the workbox. The cooperation between the second sand leakage hole 410 and the second opening and closing mechanism further enhances the flexibility and thoroughness of sand removal. Based on the sand removal through the first sand leakage hole 110, the second sand leakage hole 410 on the lifting base plate 400 can discharge residual sand from the base plate, achieving all-around sand removal. The controllability of the second opening and closing mechanism ensures the sealing of the lifting base plate 400 during printing, preventing sand leakage from the bottom and ensuring a stable printing process. The overall design makes the workbox more functional and meets higher production requirements.

[0029] Based on the 3D printing workbox disclosed in the embodiments of this utility model, the embodiments of this utility model also disclose a 3D printing device, including the 3D printing workbox described in any of the above embodiments.

[0030] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A 3D printing work box, characterized in that, The device includes a work box body (100) and a first opening and closing mechanism (200). The work box body (100) has a first sand leakage hole (110) on its side wall. The first opening and closing mechanism (200) is movably disposed on the outer side wall of the work box body (100). In the first state, the first opening and closing mechanism (200) blocks the first sand leakage hole (110). In the second state, the first opening and closing mechanism (200) moves away from the first sand leakage hole (110).

2. The 3D printing work box according to claim 1, characterized in that, The first opening and closing mechanism (200) includes a sand baffle (210) and a driving mechanism (220). The driving mechanism (220) is driven to connect with the sand baffle (210) and drives the sand baffle (210) to block or move away from the first sand leakage hole (110).

3. The 3D printing work box according to claim 2, characterized in that, The sand baffle (210) is slidably disposed on the outer side wall of the working box body (100), and the driving mechanism (220) drives the sand baffle (210) to slide on the outer side wall to block or move away from the first sand leakage hole (110).

4. The 3D printing work box according to claim 3, characterized in that, A guide portion is provided on the outer side wall, and the sand baffle (210) is guided and cooperated with the guide portion.

5. The 3D printing work box according to claim 2, characterized in that, One side of the sand baffle is movably disposed on the outer side wall of the work box body (100), and the sand baffle (210) is swung to block or move away from the first sand leakage hole (110).

6. The 3D printing work box according to claim 2, characterized in that, It also includes a maintenance cover (300) disposed on the outer side wall of the work box body (100), and at least a portion of the maintenance cover (300) covers the drive mechanism (220).

7. The 3D printing work box according to claim 3, characterized in that, It also includes a maintenance cover plate (300), which is disposed on the outer side wall of the work box body (100), at least a portion of which covers the drive mechanism (220), and the sand baffle plate (210) is guided and engaged with the maintenance cover plate (300).

8. The 3D printing work box according to claim 1, characterized in that, The side wall of the work box body (100) is provided with a plurality of first sand leakage holes (110) spaced apart along the circumference, and the first sand leakage holes (110) are located at the bottom of the side wall.

9. The 3D printing work box according to claim 1, characterized in that, It also includes a lifting base plate (400) slidably disposed within the main body (100) of the work box and a second opening and closing mechanism. The lifting base plate (400) is provided with a second sand leakage hole (410). The second opening and closing mechanism is movably disposed on the lifting base plate (400) and can move to block or move away from the second sand leakage hole (410).

10. A 3D printing device, characterized in that, The 3D printing workbox includes any one of claims 1 to 9.

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