Explosion-proof powder cleaning box for binder spraying additive manufacturing technology

Abstract

The utility model relates to the technical field of additive manufacturing, and discloses an anti-explosion powder cleaning box for a binder spraying additive manufacturing technology, the anti-explosion powder cleaning box comprises a box body, the interior of the box body is rotatably connected with an air blowing pipe, and the bottom of the air blowing pipe is fixedly connected with claw-shaped bent pipes which are arranged at equal intervals. According to the anti-explosion powder cleaning box for the binder spraying additive manufacturing technology, the box door which can be completely opened is arranged on the front face of the box body, a powder box can be conveniently placed in by a forklift or manual work, the carrying burden of workers is relieved, continuous air blowing is conducted on the periphery of the powder box through a claw-shaped bent pipe structure, a motor transmission structure is used for driving a claw-shaped bent pipe to rotate, and therefore the powder box can be conveniently cleaned. According to the powder cleaning box, circular blowing around the powder box is achieved, so that powder cleaning dead corners are eliminated, static electricity can be released in time, dust explosion is effectively prevented, the safety during powder cleaning is improved, and the problems that an existing powder cleaning box is small in box door and inconvenient to carry, and cleaning dead corners exist are solved.

Description

Technical Field

[0001] This application relates to the field of additive manufacturing technology, specifically to an explosion-proof powder cleaning box for binder spraying additive manufacturing technology. Background Technology

[0002] In the additive manufacturing process, powdered metal or plastic and other adhesive materials are jet printed and solidified into a green preform. After printing, a large amount of residual powder remains on the surface of the green preform and inside the printing equipment. The powder box carrying the green preform needs to be placed in a powder cleaning box, and air needs to be continuously introduced into the powder cleaning box to clean the powder.

[0003] Existing powder cleaning boxes typically handle powder boxes via a small door on one side, making handling inconvenient and requiring manual labor. Forklifts cannot be used for transport, increasing the workload for workers. Furthermore, when gas is introduced into the powder cleaning box, it can only flow in a fixed direction and cannot circulate around the powder box, resulting in cleaning dead zones, affecting cleaning quality, and reducing work efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides an explosion-proof powder cleaning box for adhesive spraying additive manufacturing technology. It features the advantages of easy forklift or manual placement of the powder box, reducing the workload of workers, and the ability to circulate air around the powder box to eliminate cleaning dead corners, improve cleaning efficiency, and ensure cleaning quality. This solves the problems of existing powder cleaning boxes having small doors, being inconvenient to move, and being unable to circulate air around the powder box, resulting in cleaning dead corners.

[0005] To achieve the above objectives, this application provides the following technical solution: an explosion-proof powder cleaning box for adhesive spraying additive manufacturing technology, comprising a box body, an air blowing pipe rotatably connected inside the box body, claw-shaped bends arranged at equal intervals fixedly connected to the bottom of the air blowing pipe, a motor provided on the upper surface of the box body, a reduction gearbox provided on the upper surface of the box body, the output end of the motor being connected to the input end of the reduction gearbox, a first pulley fixedly sleeved on the output end of the reduction gearbox, a second pulley fixedly sleeved on the outer circumference of the air blowing pipe, a belt drivingly connecting the first pulley and the second pulley, a base provided on the inner bottom wall of the box body, a powder box provided on the upper surface of the base, grounding wires arranged at equal intervals provided on the bottom of the box body, the front of the box body being completely open, a door hinged to the front of the box body, and the door completely covering the front of the box body.

[0006] The above solution addresses the issue that existing powder cleaning boxes have small doors, making them inconvenient to move and unable to circulate air around the powder box, resulting in cleaning dead zones. By installing a fully openable door on the front of the box, it becomes easier for forklifts or manual labor to place the powder box, reducing the burden on workers. By employing a claw-shaped curved tube structure to continuously blow air around the powder box and using a motor-driven structure to rotate the claw-shaped curved tube, air circulation is achieved around the powder box, thereby eliminating cleaning dead zones, improving cleaning efficiency, and ensuring cleaning quality.

[0007] Furthermore, the claw-shaped bends are arranged in a ring and are connected to the air blowing pipe.

[0008] The above-mentioned design ensures that the airflow is more evenly distributed, covering every corner of the powder box and effectively removing dust. At the same time, the shape of the claw-shaped tubes can also increase the turbulence of the airflow and improve the powder removal efficiency.

[0009] Furthermore, the interior of the enclosure has three observation windows, each with an explosion-proof glass panel.

[0010] The above solution allows operators to observe the condition inside the enclosure without opening the door, ensuring operational safety. The use of explosion-proof glass further enhances the safety of the equipment, effectively protecting it even in extreme situations such as explosions inside the enclosure.

[0011] Furthermore, two limiting rings are fixedly sleeved on the outer circumferential surface of the air blowing pipe, and the side of the limiting rings closest to the box body is in contact with the outer surface of the box body.

[0012] The above scheme restricts the air blowing pipe, preventing it from moving vertically and improving the stability of the air blowing pipe and the claw-shaped bend.

[0013] Furthermore, a bracket is fixedly connected to the upper surface of the box, and a first connecting pipe is fixedly inserted into the inside of the bracket. The top end of the air blowing pipe is rotatably connected to the bottom end of the first connecting pipe, and the first connecting pipe communicates with the air blowing pipe.

[0014] With the above solution, the device can be connected to an external device through the first connecting pipe. Inert gas can be introduced through the first connecting pipe to perform air blowing and powder cleaning operations. The bracket can stably support the first connecting pipe, enabling the air blowing pipe to rotate stably at the bottom of the first connecting pipe.

[0015] Furthermore, the outer surface of the box door is provided with a lock, and the box door is fixedly connected to the box body through the lock.

[0016] The above solution ensures that the lock can be securely closed when needed, preventing dust leakage or external objects from entering the enclosure, thus guaranteeing operational safety and the normal operation of the equipment.

[0017] Furthermore, a vent is fixedly connected inside the box, and a second connecting pipe is fixedly connected to the end of the vent away from the box.

[0018] The above solution allows dust to be discharged from the housing through the vent. The second connecting pipe can be connected to an external bag filter and inert gas treatment equipment to treat the discharged air containing dust and inert gas, thus preventing environmental pollution.

[0019] Furthermore, the base has forklift holes arranged at equal intervals inside, and the base is located directly below the claw-shaped bend.

[0020] The above solution allows for the forklift forks to be inserted into the forklift holes inside the base, enabling the powder box to be moved by the forklift. This facilitates the movement of the powder box, improves the efficiency of powder box handling, and reduces the workload of workers.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This explosion-proof powder cleaning box for adhesive spraying additive manufacturing technology features a fully openable door on the front, facilitating forklift or manual placement of the powder box and reducing the handling burden on workers. It utilizes a claw-shaped curved tube structure to continuously blow air around the powder box, driven by a motor to rotate and achieve circulating airflow around the powder box, eliminating cleaning dead zones, improving cleaning efficiency, and ensuring cleaning quality. Furthermore, the presence of evenly spaced grounding wires at the bottom of the box allows for timely release of static electricity, effectively preventing dust explosions and enhancing safety during cleaning. This design solves the problems of existing powder cleaning boxes, such as small doors, inconvenient handling, and the inability to circulate airflow around the powder box, resulting in cleaning dead zones. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0024] Figure 2 This is a diagram of the grounding wire structure for this application;

[0025] Figure 3 This is a structural diagram of the box in this application;

[0026] Figure 4 This is a partial front view structural diagram of this application;

[0027] Figure 5 This is a partial cross-sectional side view of the structure of this application;

[0028] Figure 6 This is a structural diagram of the cabinet door in this application.

[0029] In the picture:

[0030] 1. Housing; 2. Air blowing pipe; 3. Claw-shaped bend pipe; 4. Motor; 5. Gearbox; 6. First pulley; 7. Second pulley; 8. Belt; 9. Base; 10. Powder box; 11. Grounding wire; 12. Door; 13. Observation window; 14. Explosion-proof glass; 15. Limiting ring; 16. Bracket; 17. First connecting pipe; 18. Lock; 19. Vent; 20. Second connecting pipe; 21. Forklift hole. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 , Figure 2 and Figure 3 This embodiment of an explosion-proof powder cleaning box for adhesive spraying additive manufacturing technology includes a box body 1. An air blowing pipe 2 is rotatably connected inside the box body 1. The bottom of the air blowing pipe 2 is fixedly connected to claw-shaped bends 3 arranged at equal intervals. A motor 4 is provided on the upper surface of the box body 1. A reduction gearbox 5 is provided on the upper surface of the box body 1. The output end of the motor 4 is connected to the input end of the reduction gearbox 5. A first pulley 6 is fixedly sleeved on the output end of the reduction gearbox 5. A second pulley 7 is fixedly sleeved on the outer circumference of the air blowing pipe 2. A belt 8 is drivingly connected between the first pulley 6 and the second pulley 7. A base 9 is provided on the inner bottom wall of the box body 1. A powder box 10 is provided on the upper surface of the base 9. Grounding wires 11 are arranged at equal intervals on the bottom of the box body 1. The front of the box body 1 is completely open. A box door 12 is hinged to the front of the box body 1, and the box door 12 completely covers the front of the box body 1.

[0033] Please see Figure 3 , Figure 4 and Figure 5 The claw-shaped bends 3 are arranged in a ring and are connected to the air blowing pipe 2. The ring arrangement of the claw-shaped bends 3 can ensure that the airflow is more uniform and covers all corners of the powder box 10, effectively removing dust. At the same time, the shape design of the claw-shaped bends 3 can also increase the turbulence of the airflow and improve the powder cleaning efficiency.

[0034] Please see Figure 1 and Figure 6The interior of the enclosure 1 has three observation windows 13, and each observation window 13 is equipped with explosion-proof glass 14. The observation windows 13 allow operators to observe the state inside the enclosure 1 without opening the enclosure door 12, ensuring the safety of operation. The use of explosion-proof glass 14 further improves the safety of the equipment, and can effectively resist extreme situations such as explosion inside the enclosure 1.

[0035] Please see Figure 4 and Figure 5 Two limiting rings 15 are fixedly sleeved on the outer circumference of the air blowing pipe 2. The side of the limiting ring 15 closest to the box 1 contacts the outer surface of the box 1 to restrict the air blowing pipe 2, prevent the air blowing pipe 2 from moving vertically, and improve the stability of the movement of the air blowing pipe 2 and the claw-shaped bend 3.

[0036] Please see Figure 4 and Figure 5 A bracket 16 is fixedly connected to the upper surface of the housing 1. A first connecting pipe 17 is fixedly inserted into the inside of the bracket 16. The top end of the air blowing pipe 2 is rotatably connected to the bottom of the first connecting pipe 17. The first connecting pipe 17 is connected to the air blowing pipe 2 and can be connected to external equipment through the first connecting pipe 17. Inert gas is introduced through the first connecting pipe 17 to perform air blowing and powder cleaning operations. The bracket 16 can stably support the first connecting pipe 17, so that the air blowing pipe 2 can rotate stably at the bottom of the first connecting pipe 17.

[0037] Please see Figure 1 and Figure 2 The outer surface of the door 12 is provided with a lock 18. The door 12 is fixedly connected to the box body 1 through the lock 18. The lock 18 can ensure that the door 12 can be firmly closed when needed to prevent dust from leaking out or external objects from entering the box body 1, thereby ensuring the safety of operation and the normal operation of the equipment.

[0038] Please see Figure 2 , Figure 4 and Figure 5 The interior of the housing 1 is fixedly connected to a vent 19. The end of the vent 19 away from the housing 1 is fixedly connected to a second connecting pipe 20. Dust can be discharged from the housing 1 through the vent 19. The second connecting pipe 20 can be connected to an external bag filter and an inert gas treatment device to treat the discharged air containing dust and inert gas and avoid environmental pollution.

[0039] Please see Figure 3 and Figure 4The base 9 has forklift holes 21 arranged at equal intervals inside. The base 9 is located directly below the claw-shaped bend 3. The forklift forks can be inserted into the forklift holes 21 inside the base 9, and then the powder box 10 can be moved by the forklift. This facilitates the movement of the powder box 10, improves the handling efficiency of the powder box 10, and reduces the workload of the workers.

[0040] This embodiment presents an explosion-proof powder cleaning box for adhesive spraying additive manufacturing technology. It features a fully openable door 12 on the front of the box 1, facilitating the insertion of powder boxes 10 by forklift or manual labor, reducing the handling burden on workers. A claw-shaped curved tube 3 structure continuously blows air around the powder box 10, and a motor-driven structure rotates the claw-shaped curved tube 3, achieving cyclic air blowing around the powder box 10. This eliminates cleaning dead zones, improves cleaning efficiency, and ensures cleaning quality. Furthermore, equidistantly arranged grounding wires 11 at the bottom of the box 1 release static electricity promptly, effectively preventing dust explosions and improving safety during cleaning. This solution addresses the problems of existing powder cleaning boxes having small doors, being inconvenient to handle, and being unable to cyclically blow air around the powder box 10, resulting in cleaning dead zones.

[0041] It should be noted that the reduction gearbox 5 is a gearbox, which can reduce speed through gear transmission, preventing the air blowing pipe 2 and the claw-shaped bend pipe 3 from rotating too fast, and improving the stability of the claw-shaped bend pipe 3 during the powder cleaning operation.

[0042] The working principle of the above embodiments is as follows:

[0043] The fully open front of the housing 1 facilitates the handling of the powder box 10 by forklift or manual labor. During powder cleaning, the housing door 12 is opened, the powder box 10 is placed on the base 9, and the base 9 and powder box 10 are moved together into the housing 1 by forklift. The powder box 10 is then placed directly below the claw-shaped bend 3. After closing the housing door 12, it is secured to the housing 1 by the lock 18. The housing is connected to external equipment via the first connecting pipe 17, and inert gas is introduced. The inert gas is blown out through the air blowing pipe 2 and the claw-shaped bend 3 to clean the powder box 10 below. During the air blowing process, the starter motor 4 drives the output end of the reduction gearbox 5 and the first pulley 6 to rotate. The first pulley 6 is connected to the belt 8 and... The second pulley 7 drives the air blowing pipe 2 to rotate, which in turn drives the claw-shaped bend 3 to rotate. The claw-shaped bend 3 moves in a circular motion around the powder box 10, thereby continuously circulating air around the powder box 10 to eliminate dead corners in the powder cleaning process and ensure the quality of powder cleaning. The grounding wire 11 can release static electricity in a timely manner during the powder cleaning operation, effectively preventing dust explosions. At the same time, the inert gas introduced can also effectively prevent dust explosions and improve the safety of powder cleaning. During the powder cleaning process, dust can be discharged through the air vent 19. The second connecting pipe 20 can be connected to the external bag filter and inert gas treatment equipment to treat the discharged air containing dust and inert gas and avoid environmental pollution.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof powder cleaning box for adhesive spraying additive manufacturing technology, comprising a box body (1), characterized in that: The box (1) is rotatably connected to an air blowing pipe (2). The bottom of the air blowing pipe (2) is fixedly connected to claw-shaped bends (3) arranged at equal intervals. The upper surface of the box (1) is provided with a motor (4) and a gearbox (5). The output end of the motor (4) is connected to the input end of the gearbox (5). The output end of the gearbox (5) is fixedly sleeved with a first pulley (6). The outer circumferential surface of the air blowing pipe (2) is fixedly sleeved with a second pulley (7). A belt (8) is connected between the first pulley (6) and the second pulley (7). The inner bottom wall of the box (1) is provided with a base (9). The upper surface of the base (9) is provided with a powder box (10). The bottom of the box (1) is provided with grounding wires (11) arranged at equal intervals. The front of the box (1) is completely open. The front of the box (1) is hinged with a box door (12). The box door (12) completely covers the front of the box (1).

2. The explosion-proof powder cleaning box for adhesive spraying additive manufacturing technology according to claim 1, characterized in that: The claw-shaped bends (3) are arranged in a ring and are connected to the air blowing pipe (2).

3. The explosion-proof powder cleaning box for binder spraying additive manufacturing technology according to claim 1, characterized in that: The enclosure (1) has three observation windows (13) inside, and each observation window (13) has an explosion-proof glass (14) inside.

4. The explosion-proof powder cleaning box for adhesive spraying additive manufacturing technology according to claim 1, characterized in that: Two limiting rings (15) are fixedly sleeved on the outer circumference of the air blowing pipe (2). The limiting rings (15) are in contact with the outer surface of the box (1) on the side closest to the box (1).

5. The explosion-proof powder cleaning box for adhesive spraying additive manufacturing technology according to claim 1, characterized in that: A bracket (16) is fixedly connected to the upper surface of the box (1), and a first connecting pipe (17) is fixedly inserted inside the bracket (16). The top end of the air blowing pipe (2) is rotatably connected to the bottom of the first connecting pipe (17), and the first connecting pipe (17) is connected to the air blowing pipe (2).

6. The explosion-proof powder cleaning box for adhesive spraying additive manufacturing technology according to claim 1, characterized in that: The outer surface of the box door (12) is provided with a lock (18), and the box door (12) is fixedly connected to the box body (1) through the lock (18).

7. The explosion-proof powder cleaning box for binder spraying additive manufacturing technology according to claim 1, characterized in that: The inside of the box (1) is fixedly connected to a vent (19), and a second connecting pipe (20) is fixedly connected to the end of the vent (19) away from the box (1).

8. The explosion-proof powder cleaning box for binder spraying additive manufacturing technology according to claim 1, characterized in that: The base (9) has forklift holes (21) arranged at equal intervals inside, and the base (9) is located directly below the claw-shaped bend (3).

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