Method for cleaning waste barrel of purification box and purification box

Abstract

The invention relates to the technical field of 3D printing, in particular to a method for cleaning a waste barrel of a purification box and the purification box. The method for cleaning the waste barrel of the purification box comprises the following steps: providing a closed space, and placing the purification box in the closed space; the barrel body and the barrel cover of the waste barrel are separated through the driving mechanism; the moving device moves the barrel body to a grabbing position; the grabbing mechanism grabs the barrel body and moves the barrel body to a rotating position, the grabbing mechanism turns over the barrel body so that a barrel opening of the barrel body faces downwards, and the barrel body is vibrated so that metal powder in the barrel body can be poured out; the moving device moves the barrel body to the cleaning position, the cleaning mechanism cleans the barrel body, automatic cleaning of the waste barrel is achieved, and the cleaning efficiency of the waste barrel is improved; the safety of workers is well guaranteed, and the accident rate is greatly reduced. The purification box can adopt the method for cleaning the waste barrel of the purification box, the cleaning efficiency of the waste barrel is improved, the safety of workers is guaranteed, and the accident rate is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, and in particular to a method for cleaning a waste barrel of a purification box and a purification box. Background Art

[0002] With the continuous advancement of science and technology, industrial parts are gradually developing in the direction of precision and complexity. Traditional processing methods such as casting and forging can no longer meet the current manufacturing needs, so 3D printing technology has emerged. 3D printing technology is based on digital model files and uses powdered sand, metal, ceramics and other bondable materials to form parts through layer-by-layer printing and curing. It is one of the main means of additive manufacturing.

[0003] Selective laser melting (SLM) is an important branch of metal 3D printing technology. SLM printing technology uses laser to melt metal powder and then cool it to form. Some metal powder will splash during the laser printing process. The most commonly used method is to blow the splashed metal powder into the purification box through a certain air duct structure and collect it through a waste barrel. When a certain amount of metal powder is collected in the waste barrel, it is necessary to manually disassemble the waste barrel and clean it. On the one hand, since the metal powder in the waste barrel is easy to form dust, it is easy to explode when it is disassembled and exposed to oxygen in the air. Especially metal powders such as aluminum and magnesium are more prone to explosion. On the other hand, there is pressure in the waste barrel. After the waste barrel is opened, the metal powder in the barrel spreads outward, which is easy to cause friction and fire, and then transferred to the barrel and finally explode. Therefore, there are great safety hazards in manually cleaning waste barrels, the safety of workers is difficult to fully guarantee, and the cleaning efficiency is low.

[0004] Therefore, there is an urgent need for a method for cleaning a waste barrel of a purification box and a purification box to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a method for cleaning a waste barrel in a purification box and a purification box, so as to realize automatic cleaning of the waste barrel and improve the cleaning efficiency of the waste barrel; the safety of the staff is well guaranteed and the accident rate is greatly reduced.

[0006] In order to achieve the above objectives, the following technical solutions are provided:

[0007] Methods for cleaning the waste barrel of the purification box include:

[0008] Providing a closed space, and placing the purification box in the closed space;

[0009] The barrel body and the barrel cover of the waste barrel are separated by a driving mechanism;

[0010] The moving device moves the barrel to a grabbing position;

[0011] The grabbing mechanism grabs the barrel body and moves it to a rotating position, and the grabbing mechanism flips the barrel body so that the barrel mouth of the barrel body faces downward, and vibrates the barrel body to pour out the metal powder in the barrel body;

[0012] The moving device moves the barrel body to a cleaning position, and the cleaning mechanism cleans the barrel body.

[0013] As an optional solution, before the driving mechanism separates the barrel body and the barrel cover of the waste barrel, the enclosed space is subjected to a deoxygenation treatment.

[0014] As an optional solution, before the driving mechanism separates the barrel body and the barrel cover of the waste barrel, an inertizing agent is injected into the waste barrel, and exhaust is performed through an air outlet at the same time.

[0015] As an option, it also includes:

[0016] After cleaning is completed, the moving device moves the barrel body to the grabbing position, and the grabbing mechanism turns the barrel body over so that the barrel mouth faces upward;

[0017] The moving device moves the barrel body to the barrel cover;

[0018] The driving mechanism assembles the barrel cover and the barrel body.

[0019] A purification box, used to perform the above-mentioned method for cleaning a waste barrel of a purification box, the purification box comprising:

[0020] A box body, wherein a filtering system is arranged in the box body;

[0021] The waste barrel is arranged inside the box body and is used for receiving the metal powder filtered out by the filtering system.

[0022] As an optional solution, the waste bin comprises:

[0023] Drum covers; and

[0024] The barrel body has a barrel mouth, and the barrel cover is sealed at the barrel mouth.

[0025] As an optional solution, the barrel cover is provided with an inertizing agent inlet and an air outlet which are connected to the barrel body.

[0026] As an optional solution, the purification box includes:

[0027] The waste barrel further comprises a lifting mechanism, wherein the driving mechanism is configured to drive the lifting mechanism to move up and down so that the barrel cover and the barrel body move closer to or farther from each other.

[0028] As an optional solution, the lifting mechanism includes:

[0029] A connecting rod, one end of which is rotatably connected to the barrel cover;

[0030] A pressure rod, the other end of the connecting rod being rotatably connected to the pressure rod;

[0031] A lifting rod and a lifting platform, wherein the lifting platform is used to carry the barrel body, the lifting rod is passed through the barrel cover, one end of the lifting rod is fixed to the lifting platform, and the other end of the lifting rod is rotatably connected to the pressure rod.

[0032] As an optional solution, the lifting mechanism further includes:

[0033] The guide assembly is arranged between the barrel cover and the lifting platform, and can enable the lifting platform to move in a vertical direction relative to the barrel cover.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] The method for cleaning a waste barrel of a purification box provided by the present invention includes providing a closed space, placing a purification box in the closed space; separating the barrel body and the barrel cover of the waste barrel by a driving mechanism; a moving device moves the barrel body to a grabbing position; a grabbing mechanism grabs the barrel body and moves it to a rotating position, and the grabbing mechanism flips the barrel body so that the barrel mouth of the barrel body faces downward, and vibrates the barrel body to pour out the metal powder in the barrel body; the moving device moves the barrel body to a cleaning position, and the cleaning mechanism cleans the barrel body. Through the above steps, automated cleaning of the waste barrel is achieved, and the cleaning efficiency of the waste barrel is improved; the safety of the staff is well guaranteed, and the accident rate is greatly reduced.

[0036] The purification box provided by the present invention can adopt the above-mentioned method for cleaning the waste barrel of the purification box, thereby improving the cleaning efficiency of the waste barrel, ensuring the safety of the staff, and reducing the accident rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0038] Figure 1 A schematic diagram of the structure of a purification box provided in an embodiment of the present invention;

[0039] Figure 2 A schematic diagram of the structure of a purification box provided in an embodiment of the present invention;

[0040] Figure 3 One of the structural schematic diagrams of a waste bin provided in an embodiment of the present invention;

[0041] Figure 4 A second structural schematic diagram of a waste bin provided in an embodiment of the present invention;

[0042] Figure 5 A flow chart of a method for cleaning a waste barrel of a purification box provided in an embodiment of the present invention.

[0043] Reference numerals:

[0044] 1000, purification box; 2000, mobile device; 3000, cleaning area;

[0045] 100. Waste barrel;

[0046] 10. Barrel body;

[0047] 20. Barrel cover; 21. Inert agent inlet; 22. Air outlet;

[0048] 30. Lifting mechanism; 31. Connecting rod; 32. Pressing rod; 33. Lifting rod; 34. Lifting platform; 35. Guide rod; 36. Detection part;

[0049] 40. Valve;

[0050] 200, box body;

[0051] 300. Roller. DETAILED DESCRIPTION

[0052] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0053] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does 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 cannot be understood as a limitation on the present application.

[0054] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0055] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms 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. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0056] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0057] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0058] like Figure 1-Figure 2 As shown, this embodiment provides a purification box 1000, which is used to collect metal powder splashed during laser printing. Specifically, the purification box 1000 includes a box body 200 and a waste barrel 100, and a filter system is arranged in the box body 200; the waste barrel 100 is arranged in the box body 200 and is used to receive the metal powder filtered by the filter system. The filter system is a prior art and will not be described in detail here.

[0059] The purification box 1000 further includes a roller 300, which is disposed below the box body 200. The roller 300 enables the staff to push the entire purification box 1000 to move with less force, so that the staff can move the purification box 1000 to a preset position. Optionally, there are multiple rollers 300, which are disposed at intervals below the box body 200, so that the purification box 1000 can be moved while maintaining the stability of the box body 200.

[0060] Combination Figure 1-Figure 4 The specific structure of the waste barrel 100 is described as follows. Figure 1-Figure 4 As shown, the waste barrel 100 includes a barrel cover 20 and a barrel body 10. The barrel body 10 has a barrel mouth, and the barrel cover 20 is sealed at the barrel mouth. The barrel body 10 and the barrel cover 20 are separately arranged for easy separation, thereby facilitating the dumping of the metal powder in the barrel body 10.

[0061] The barrel cover 20 is provided with a valve 40, and the valve 40 is used to open or close the connection passage between the filtering system and the waste barrel 100. The valve 40 may be a pneumatic butterfly valve.

[0062] The barrel cover 20 is provided with an inertizing agent inlet 21 and an air outlet 22 which are connected to the barrel body 10. The inertizing agent is injected into the barrel body through the inertizing agent inlet 21, and the air is exhausted through the air outlet 22 to ensure that the pressure in the barrel body 10 is within a stable range, which can prevent the metal powder in the barrel body from exploding to a certain extent. When the powder used in 3D printing is an inactive metal powder, such as stainless steel, slaked lime is usually used as an inertizing agent; when the powder used in 3D printing is an active metal powder, such as aluminum, magnesium, etc., a degrading agent such as silicone oil is usually used.

[0063] The purification box 1000 includes a driving mechanism, and the waste barrel 100 also includes a lifting mechanism 30, which is configured to drive the lifting mechanism 30 to move up and down, so that the barrel cover 20 and the barrel body 10 are close to or away from each other, and the barrel cover 20 is automatically opened or closed, which well ensures the safety of the staff. The driving mechanism can be a cylinder or a manipulator, etc.

[0064] Specifically, the lifting mechanism 30 includes a connecting rod 31, a pressure rod 32, a lifting rod 33 and a lifting platform 34. One end of the connecting rod 31 is rotatably connected to the barrel cover 20; the other end of the connecting rod 31 is rotatably connected to the pressure rod 32; the lifting platform 34 is used to carry the barrel body 10, and the lifting rod 33 is inserted through the barrel cover 20. One end of the lifting rod 33 is fixed to the lifting platform 34, and the other end of the lifting rod 33 is rotatably connected to the pressure rod 32. When in use, the driving mechanism lifts or presses down the pressure rod 32, thereby causing the pressure rod 32 and the connecting rod 31 to rotate relative to the barrel cover 20, driving the pressure rod 32 and the lifting platform 34 thereon to rise and fall, so that the barrel body 10 is close to or away from the barrel cover 20, realizing the automatic opening and closing of the waste barrel 100, and improving the automation degree of the purification box 1000.

[0065] When the driving mechanism presses down the pressing rod 32, the barrel body 10 descends onto the moving device 2000. At this time, the barrel body 10 is separated from the lifting platform 34, and the moving device 2000 moves the barrel body 10 to the cleaning area 3000, and the barrel body 10 is cleaned by the cleaning device to improve the cleaning efficiency of the barrel body 10. The moving device 2000 can be a belt transmission mechanism or a linear motor.

[0066] The lifting mechanism 30 also includes a guide assembly, which is arranged between the barrel cover 20 and the lifting platform 34, and can enable the lifting platform 34 to move in the vertical direction relative to the barrel cover 20. The guide member ensures that the lifting platform 34 and the barrel body 10 arranged on the lifting platform 34 move in the vertical direction, preventing the barrel body 10 from being offset during the movement, thereby achieving precise docking between the barrel body 10 and the barrel cover 20.

[0067] In this embodiment, the guide assembly includes a guide rod 35, the guide rod 35 extends in the vertical direction, the guide rod 35 is fixed to the barrel cover 20, and at least a portion of the guide rod 35 is passed through the lifting platform 34 to guide the lifting platform 34. In other embodiments, the guide assembly can be a guide rail slider structure, and the slider is slidably matched with the guide rail.

[0068] Optionally, the lifting mechanism 30 further includes a detection member 36, which is disposed on the barrel cover 20, and is used to detect whether the barrel body 10 and the barrel cover 20 are installed in place. Specifically, the detection member 36 is an in-place sensor. The purification box 1000 further includes a control component, and the detection member 36 and the drive mechanism are both communicatively connected to the control component. The detection member 36 transmits the in-place signal of the lifting platform 34 detected to the control component, and the control component controls the drive mechanism to stop working to prevent the drive mechanism from applying too much pressure to the pressure rod 32, thereby damaging the pressure rod 32 and the barrel cover 20. It should be noted that the control component is a prior art, and the present embodiment can use any control component that can achieve the above functions.

[0069] like Figure 5As shown, this embodiment also provides a method for cleaning a waste barrel of a purification box, which is completed using the above-mentioned purification box 1000 and includes the following steps:

[0070] Providing a closed space, placing the purification box 1000 in the closed space;

[0071] The barrel body 10 and the barrel cover 20 of the waste barrel 100 are separated by a driving mechanism;

[0072] The moving device 2000 moves the barrel 10 to the grabbing position;

[0073] The grabbing mechanism grabs the barrel body 10 and moves it to the rotating position. The grabbing mechanism flips the barrel body 10 so that the barrel mouth of the barrel body 10 faces downward, and vibrates the barrel body 10 to pour out the metal powder in the barrel body 10;

[0074] The moving device 2000 moves the barrel body 10 to the cleaning position, and the cleaning mechanism cleans the barrel body 10 .

[0075] The grabbing position, rotating position and cleaning position are sequentially arranged in the cleaning area 3000. The cleaning mechanism can be a brush, which cleans all directions along the inner wall of the barrel body 10. Optionally, before the brush is cleaned, a cleaning agent is sprayed into the barrel to further improve the cleaning effect.

[0076] Through the above-mentioned method for cleaning the waste barrel of the purification box, the automatic cleaning of the waste barrel 100 is achieved, and the cleaning efficiency of the waste barrel 100 is improved; the safety of the staff is well guaranteed, and the accident rate is greatly reduced.

[0077] Optionally, before the driving mechanism separates the barrel body 10 of the waste barrel 100 from the barrel cover 20, the enclosed space is deoxygenated. The cause of the waste barrel 100 explosion is mostly due to the metal powder in the waste barrel 100 reacting with oxygen in the air, so after placing the purification box 1000 in the enclosed space, the enclosed space is deoxygenated, which can greatly reduce the metal powder in the waste barrel 100 from contacting with oxygen in the air to cause explosion or fire, and further reduce the probability of accidents.

[0078] Optionally, before the driving mechanism separates the barrel body 10 of the waste barrel 100 from the barrel cover 20, an inertizing agent is injected into the waste barrel 100, and exhaust is performed through the air outlet 22. The introduction of the inertizing agent reduces the local concentration of combustible dust, blocks the combustible dust from contacting the air, reduces its contact area with oxygen, reduces or eliminates the risk of dust explosion, and further improves safety.

[0079] Further, the method for cleaning the waste barrel of the purification box also includes:

[0080] After cleaning is completed, the moving device 2000 moves the barrel body 10 to the grabbing position, and the grabbing mechanism turns the barrel body 10 over so that the barrel mouth faces upward;

[0081] The moving device 2000 moves the barrel body 10 to the barrel cover 20;

[0082] The driving mechanism assembles the barrel cover 20 and the barrel body 10.

[0083] After the barrel body 10 is cleaned through the above steps, the barrel body 10 is automatically transferred to the box body 200, and the barrel body 10 and the barrel cover 20 are automatically assembled, thereby improving the automation level of the purification box 1000 and saving manpower.

[0084] Note that in the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0085] The above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A method for cleaning a waste barrel of a purification box, characterized in that: include: Providing a closed space, and placing the purification box in the closed space; The barrel body (10) and the barrel cover (20) of the waste barrel (100) are separated by a driving mechanism; The moving device (2000) moves the barrel (10) to a grabbing position; The grabbing mechanism grabs the barrel body (10) and moves it to a rotating position, the grabbing mechanism flips the barrel body (10) so that the barrel mouth of the barrel body (10) faces downward, and vibrates the barrel body (10) to pour out the metal powder in the barrel body (10); The moving device (2000) moves the barrel body (10) to a cleaning position, and the cleaning mechanism cleans the barrel body (10).

2. The method for cleaning a waste barrel of a purification box according to claim 1, characterized in that: Before the driving mechanism separates the barrel body (10) and the barrel cover (20) of the waste barrel (100), the enclosed space is subjected to a deoxygenation treatment.

3. The method for cleaning a waste barrel of a purification box according to claim 1, characterized in that: Before the driving mechanism separates the barrel body (10) and the barrel cover (20) of the waste barrel (100), an inertizing agent is injected into the waste barrel (100), and exhaust is performed through the air outlet (22) at the same time.

4. The method for cleaning a waste barrel of a purification box according to claim 1, characterized in that: Also includes: After cleaning is completed, the moving device (2000) moves the barrel body (10) to a grabbing position, and the grabbing mechanism turns the barrel body (10) over so that the barrel mouth faces upwards; The moving device (2000) moves the barrel body (10) to the barrel cover (20); The driving mechanism assembles the barrel cover (20) and the barrel body (10).

5. A purification box, used to perform the method for cleaning a waste barrel of a purification box according to any one of claims 1 to 4, characterized in that: The purification box comprises: A box (200), wherein a filtering system is arranged in the box (200); The waste barrel (100) is arranged inside the box body (200) and is used to receive the metal powder filtered out by the filtering system.

6. The purification box according to claim 5, characterized in that: The waste barrel (100) comprises: Bucket cover (20); and The barrel body (10) has a barrel opening, and the barrel cover (20) is sealed at the barrel opening.

7. The purification box according to claim 6, characterized in that: The barrel cover (20) is provided with an inertizing agent inlet (21) and an air outlet (22) which are in communication with the barrel body (10).

8. The purification box according to claim 6, characterized in that: The purification box comprises: The waste barrel (100) further comprises a lifting mechanism (30), wherein the driving mechanism is configured to drive the lifting mechanism (30) to move up and down so that the barrel cover (20) and the barrel body (10) move closer to or farther from each other.

9. The purification box according to claim 8, characterized in that: The lifting mechanism (30) comprises: A connecting rod (31), one end of which is rotatably connected to the barrel cover (20); A pressure rod (32), the other end of the connecting rod (31) being rotatably connected to the pressure rod (32); A lifting rod (33) and a lifting platform (34), wherein the lifting platform (34) is used to support the barrel body (10), the lifting rod (33) is passed through the barrel cover (20), one end of the lifting rod (33) is fixed to the lifting platform (34), and the other end of the lifting rod (33) is rotatably connected to the pressure rod (32).

10. The purification box according to claim 9, characterized in that: The lifting mechanism (30) further comprises: A guide assembly is arranged between the barrel cover (20) and the lifting platform (34), and is capable of enabling the lifting platform (34) to move in a vertical direction relative to the barrel cover (20).

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