Dust raising prevention powder discharging device and powder processing equipment

Abstract

The invention discloses a dust raising prevention powder discharging device and powder processing equipment, and relates to the technical field of powder conveying. The multiple sections of conveying pipes are sequentially connected in an inserted mode, pipe cavities of the multiple sections of conveying pipes are sequentially communicated, and the adjacent conveying pipes are slidably matched in the extending direction of the conveying pipes. The telescopic driving mechanism is installed on the conveying pipes and used for driving the multiple sections of conveying pipes to slide relatively. The equipment cost can be reduced, the powder loss can be avoided, and the component proportioning precision of the mixed powder is improved.

Description

Technical Field

[0001] This invention relates to the field of powder conveying technology, and more specifically, to a powder dust prevention discharge device and a powder processing equipment. Background Technology In current domestic and manufacturing production processes, dust generation during the discharge of powder materials is often a thorny issue requiring special treatment. While dust is relatively easy to manage in enclosed spaces, it poses a serious problem for open-top discharge systems. Improper handling could lead to dust explosions, necessitating dust collection and other explosion-proof measures. In enclosed spaces, ventilation bags are typically used for venting during the feeding process, while open containers are generally handled using on-site vacuuming.

[0002] The inventors discovered in their research that existing powder dust control and discharge devices have at least the following drawbacks: For open container feeding, dust treatment requires the addition of dust collection equipment, which is costly. In addition, the dust collection equipment has the defect of sucking up the powder, affecting the component ratio of the mixed powder. Summary of the Invention

[0003] The objectives of this invention include, for example, providing a powder dust prevention discharge device and a powder processing equipment, which can reduce costs, avoid powder loss, and improve the component ratio accuracy of mixed powders.

[0004] The embodiments of the present invention can be implemented as follows: In a first aspect, the present invention provides a powder dust prevention and discharge device, comprising: The system includes a telescopic drive mechanism and multiple conveying pipes; the multiple conveying pipes are sequentially inserted and their cavities are sequentially connected, and adjacent conveying pipes are slidably fitted together in the extension direction of the conveying pipes; the telescopic drive mechanism is installed on the conveying pipes and is used to drive the multiple conveying pipes to slide relative to each other.

[0005] In an optional embodiment, the telescopic drive mechanism includes a telescoping device and a transmission assembly. The telescoping device is connected to one end of the multi-section conveying pipe, one end of the transmission assembly is connected to the telescoping device, and the other end of the transmission assembly is connected to the other end of the multi-section conveying pipe.

[0006] In an optional embodiment, the transmission assembly includes multiple folding arms arranged in a zigzag pattern, with the ends of adjacent folding arms that are close to each other hinged together, and the ends of adjacent folding arms that are far apart from each other rotatably connected to adjacent conveying pipes; the telescoping device is used to adjust the included angle between adjacent folding arms to drive the multiple folding arms to unfold or fold.

[0007] In an optional embodiment, gears are mounted at the ends of two folding arms that are rotatably connected to the same delivery pipe, and the gears of the two folding arms mesh.

[0008] In an optional embodiment, each of the conveying pipes includes a pipe body and an installation platform, the installation platform being fixedly connected to the pipe body, the installation platform being provided with an installation plane, and the telescopic device and the folding arm being installed on the corresponding installation plane of the installation platform.

[0009] In an optional embodiment, the powder dust prevention and discharge device further includes a powder detector, which is installed on the conveying pipe and is used to obtain the powder height in the conveying pipe.

[0010] In an optional embodiment, the powder detector is installed in the uppermost conveying pipe of the multi-section conveying pipe.

[0011] In an optional embodiment, the powder dust prevention and discharge device further includes a sealing ring, which is installed at the end of the lowest conveying pipe in the multi-section conveying pipe.

[0012] In an optional embodiment, the orthographic projection of the inner circumferential surface of the sealing ring onto a preset plane is a first projection, and the orthographic projection of the inner circumferential surface of the conveying pipe on which the sealing ring is installed onto the preset plane is a second projection, the second projection being located outside the first projection; the preset plane is perpendicular to the length direction of the conveying pipe.

[0013] In a second aspect, the present invention provides a powder processing device, the powder processing device comprising: In the storage container and the powder dust prevention and discharge device described in any of the foregoing embodiments, the end of the lowest section of the multi-section conveying pipe is in separable contact with the inner bottom wall of the storage container.

[0014] The beneficial effects of the embodiments of the present invention include, for example: In summary, the powder dust-proof discharge device provided in this embodiment first extends the multiple conveying pipes during powder conveying. This creates a long pipe structure with a large internal space, capable of holding a significant amount of powder and improving conveying efficiency. Then, the extended conveying pipes are erected, with the lowermost pipe's end contacting the inner wall of the receiving container. This near-sealed fit prevents powder leakage from the contact point between the conveying pipe and the receiving container. Finally, the powder enters from the uppermost conveying pipe. Because the lowermost pipe is sealed to the receiving container, dust is prevented from escaping from the container, thus addressing the dust problem at its source. Once the amount of powder added to the conveying pipe is sufficient, the multiple sections of the conveying pipe are lifted sequentially from bottom to top. That is, the lowest conveying pipe leaves the receiving container first, and the powder is exposed from the conveying pipe. As the height of the conveying pipe increases, the powder exposed from the conveying cylinder basically spreads outwards along the exposed powder surface. The powder movement is small, making it less likely to generate dust, thus reducing the probability of dust generation at the source. This eliminates the need for a separate dust collection device, reducing costs and avoiding the problem of poor powder proportioning accuracy caused by the dust collection device sucking away some powder. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the powder dust prevention and discharge device in this embodiment; Figure 2 This is a schematic diagram of the telescopic drive mechanism in this embodiment; Figure 3 This is a schematic diagram illustrating the application of the powder dust prevention and discharge device in this embodiment.

[0017] icon: 100-Telescopic drive mechanism; 110-Telescopic device; 120-Folding arm; 121-First arm; 122-Second arm; 123-Third arm; 124-Fourth arm; 130-First gear; 140-Second gear; 200-Conveying pipe; 210-First pipe; 220-Second pipe; 230-Third pipe; 240-Mounting platform; 300-Powder detector; 400-Seal; 001-Storage container. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0022] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0023] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0024] Please refer to Figure 1 and Figure 2 This embodiment provides a powder dust prevention and discharge device, which includes a telescopic drive mechanism 100 and multiple conveying pipes 200; the multiple conveying pipes 200 are sequentially inserted and connected in sequence, and adjacent conveying pipes 200 are slidably engaged in the extension direction of the conveying pipes 200; the telescopic drive mechanism 100 is installed on the conveying pipes 200 and is used to drive the multiple conveying pipes 200 to slide relative to each other.

[0025] As described above, the working principle of the powder dust prevention and discharge device provided in this embodiment is as follows: Please refer to Figure 3When conveying powder, the multi-section conveying pipe 200 is first extended. At this point, the pipe structure formed by the multiple sections 200 is long and has a large internal space, capable of holding a significant amount of powder and improving conveying efficiency. Then, the extended conveying pipe 200 is erected, with the lowermost end of the pipe contacting the inner wall of the receiving container 001. This creates a near-sealed fit, preventing powder leakage from the contact point between the pipe and the container. The powder then enters from the uppermost conveying pipe 200. Because the lowermost pipe 200 is sealed to the inner wall of the container 001 (e.g., the bottom wall), dust is prevented from escaping from the container, thus addressing the dust problem at its source. Once the amount of powder added to the conveying pipe 200 is sufficient, the multiple sections of the conveying pipe 200 are lifted from bottom to top. That is, the lowest conveying pipe 200 leaves the receiving container 001 first, and the powder is exposed from the conveying pipe. As the height of the conveying pipe increases, the powder exposed from the conveying cylinder basically spreads outwards along the exposed powder surface. The powder movement amplitude is small, and it is not easy to generate dust. This reduces the probability of dust generation from the source, so there is no need to design a separate dust collection device, which reduces costs and avoids the problem of poor powder ratio accuracy caused by the dust collection device sucking away some powder.

[0026] The following embodiments illustrate the details of the powder dust prevention and discharge device of this application.

[0027] Please refer to Figure 1 and Figure 2 In this embodiment, optionally, the powder dust-proof discharge device includes a telescopic drive mechanism 100, three-section conveying pipes 200, a powder detector 300, and a sealing element 400. The three conveying pipes 200 are sequentially connected, and the telescopic drive mechanism 100 can simultaneously extend or shorten the three conveying pipes 200. The powder detector 300 is installed inside the conveying pipes 200 and can obtain the powder height inside the conveying pipes 200. The sealing element 400 is connected to the lowermost conveying pipe 200 and can improve the sealing performance when in contact with the receiving container.

[0028] It should be noted that in some embodiments, the number of conveying pipes 200 is not limited to three sections. Furthermore, multiple drive mechanisms can be used to individually drive adjacent conveying pipes 200 to extend or retract, allowing for more flexible and convenient control. In this embodiment, a single extension drive mechanism 100 simultaneously drives four conveying pipes 200. For ease of description, the three conveying pipe sections 200 are designated as the first pipe 210, the second pipe 220, and the third pipe 230. The first pipe 210 is fitted over the second pipe 220, and the second pipe 220 is fitted over the third pipe 230. The diameters of the first pipe 210, the second pipe 220, and the third pipe 230 gradually decrease.

[0029] Optionally, each section of the conveying pipe 200 may include a pipe body and a mounting platform 240. The pipe body may be a cylindrical pipe with a smooth inner circumferential surface, allowing for smoother powder sliding. The mounting platform 240 may be an annular platform with a rectangular cross-sectional outline. The mounting platform 240 is fitted onto the corresponding pipe body and can be welded to the pipe body for fixation. By setting the mounting platform 240, whose circumferential surface consists of four end-to-end connected mounting planes, a better mounting position can be provided for the telescopic drive mechanism 100.

[0030] In addition, to avoid the impact of the step formed at the connection point of adjacent tubes on the sliding of powder, the end inside the tube can also be set as a conical surface.

[0031] Please refer to Figure 1 and Figure 2 In this embodiment, optionally, the telescopic drive mechanism 100 includes a telescoping device 110, four folding arms 120, and two transmission gears. The four folding arms 120 are arranged in a zigzag pattern, with the ends of adjacent folding arms 120 that are close to each other hinged, and the ends of adjacent folding arms 120 that are far from each other rotatably connected to adjacent conveying pipes 200 respectively. The telescoping device 110 is used to adjust the included angle between adjacent folding arms 120 to drive multiple folding arms 120 to unfold or fold. The two transmission gears can be driven to the two folding arms 120 connected in the middle. For ease of description, the four folding arms 120 are respectively the first arm 121, the second arm 122, the third arm 123, and the fourth arm 124, and the two gears are respectively the first gear 130 and the second gear 140. During assembly, the fixed end of the telescoping device 110 is rotatably connected to the mounting platform 240 of the first pipe 210, and the telescopic end of the telescoping device 110 is rotatably connected to the first arm 121. One end of the first arm 121 is rotatably connected to the mounting platform 240 of the first tube 210, and the other end of the first arm 121 is hinged to one end of the second arm 122. The other end of the second arm 122 is equipped with a first gear 130, which is hinged to the mounting platform 240 of the second tube 220. One end of the third arm 123 is equipped with a second gear 140, which is adjustable to the mounting platform 240 of the second tube 220, and the first gear 130 and the second gear 140 mesh. The other end of the third arm 123 is hinged to one end of the fourth arm 124, and the other end of the fourth arm 124 is hinged to the mounting platform 240 of the third tube 230. In this way, when the telescopic device 110 extends, the four-section folding arm 120 can extend all the conveying pipes 200. Conversely, when the telescopic device 110 retracts, the four-section folding arm 120 can shorten all the conveying pipes 200. This allows for flexible operation, requires only one telescopic device 110, reduces the number of parts, and lowers costs.

[0032] The telescopic device 110 can be a pneumatic cylinder, a hydraulic cylinder, or an electric push rod, etc.

[0033] Optionally, the powder detector 300 is installed on the first pipe 210. In actual use, the first pipe 210 is at the top, and the third pipe 230 is at the bottom. Powder enters from the first pipe 210 and first fills the third pipe 230, while the first pipe 210 is filled last. The powder detector 300, located inside the first pipe 210, is less likely to be obstructed by powder. Only one powder detector 300 needs to be installed on the first pipe 210 to obtain the powder level in all conveying pipes 200, reducing costs. When the powder detector 300 detects that the amount of powder added in the conveying pipe 200 is sufficient, powder addition is stopped, and then the conveying pipe 200 is gradually lifted to release the powder.

[0034] Optionally, the sealing ring can be made of rubber or silicone. The sealing ring can be sleeved on the outside of the third tube 230 and located at the end of the third tube 230 away from the second tube 220. The sealing ring can make sealing contact with the inner bottom wall of the storage container 001.

[0035] Furthermore, a positioning groove can be provided on the outer wall of the third tube 230 to improve the stability of the sealing ring installation position.

[0036] Furthermore, the orthographic projection of the inner circumferential surface of the sealing ring onto the preset plane is the first projection, and the orthographic projection of the inner circumferential surface of the third tube 230 onto the preset plane is the second projection, which is located outside the first projection; the preset plane is perpendicular to the length direction of the third tube 230. That is, the area enclosed by the inner circumferential surface of the third tube 230 is located within the area enclosed by the inner circumferential surface of the sealing ring. The powder is located inside the third tube 230 and will not form an internal step at the connection between the sealing ring and the third tube 230. When the third tube 230 is lifted, the powder can leave the third tube 230 more smoothly from the end of the third tube 230. This prevents powder from accumulating at the connection between the third tube 230 and the sealing ring, and also prevents the powder from being blocked or disturbed by internal steps, further reducing the risk of dust.

[0037] The powder dust prevention and discharge device provided in this embodiment can improve the dust problem from the root cause of dust generation during powder conveying. It has a low dust risk, saves the need for dust collection equipment, reduces costs, and can also prevent some powder from being carried away during dust collection, thus not easily affecting the powder ratio quality.

[0038] Please refer to Figures 1-3This embodiment also provides a powder handling device, including a receiving container 001 and a powder dust prevention discharge device as described in the above embodiment. The end of the lowest section of the multi-section conveying pipe 200, namely the third pipe 230, is detachably in contact with the inner bottom wall of the receiving container 001. That is, in the initial state, the third pipe 230 is in contact with the inner bottom wall of the receiving container 001. When it is necessary to release the powder, the multi-section conveying pipe 200 retracts, and the end of the lowest third pipe 230 leaves the receiving container 001, exposing the powder from the bottom. The powder is basically in a static state, and the risk of dust generation is low.

[0039] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A powder dust-preventing discharge device, characterized in that, include: The multi-section conveying pipe (200) is connected in sequence and its lumens are connected in sequence. Adjacent conveying pipes (200) are slidably engaged in the extension direction of the conveying pipe (200). The telescopic drive mechanism (100) is installed on the conveying pipe (200) and is used to drive the multi-section conveying pipe (200) to slide relative to each other.

2. The powder dust prevention and discharge device according to claim 1, characterized in that: The telescopic drive mechanism (100) includes a telescopic member (110) and a transmission assembly. The telescopic member (110) is connected to one end of the multi-section conveying pipe (200). One end of the transmission assembly is connected to the telescopic member (110), and the other end of the transmission assembly is connected to the other end of the multi-section conveying pipe (200).

3. The powder dust prevention and discharge device according to claim 2, characterized in that: The transmission assembly includes multiple folding arms (120) arranged in a zigzag pattern. The two ends of adjacent folding arms (120) that are close to each other are hinged, and the two ends of adjacent folding arms (120) that are far from each other are rotatably connected to the adjacent conveying pipe (200). The telescoping device (110) is used to adjust the included angle between adjacent folding arms (120) to drive the multiple folding arms (120) to unfold or fold.

4. The powder dust prevention and discharge device according to claim 3, characterized in that: The ends of the two folding arms (120) rotatably connected to the same conveying pipe (200) are each equipped with gears, and the gears of the two folding arms (120) mesh.

5. The powder dust prevention and discharge device according to claim 3, characterized in that: Each of the conveying pipes (200) includes a pipe body and an installation platform (240). The installation platform (240) is fixedly connected to the pipe body and has an installation plane. The telescopic device (110) and the folding arm (120) are installed on the corresponding installation plane of the installation platform (240).

6. The powder dust prevention and discharge device according to any one of claims 1-5, characterized in that: The dust-proof discharge device for powder also includes a powder detector (300), which is installed on the conveying pipe (200) and is used to obtain the powder height in the conveying pipe (200).

7. The powder dust prevention and discharge device according to claim 6, characterized in that: The powder detector (300) is installed in the uppermost conveying pipe (200) of the multi-section conveying pipe (200).

8. The powder dust prevention and discharge device according to any one of claims 1-5, characterized in that: The powder dust prevention and discharge device also includes a sealing ring, which is installed at the end of the lowest conveying pipe (200) in the multi-section conveying pipe (200).

9. The powder dust prevention and discharge device according to claim 8, characterized in that: The orthographic projection of the inner circumferential surface of the sealing ring onto the preset plane is the first projection, and the orthographic projection of the inner circumferential surface of the conveying pipe (200) on which the sealing ring is installed onto the preset plane is the second projection, and the second projection is located outside the first projection; The preset plane is perpendicular to the length direction of the delivery pipe (200).

10. A powder processing device, characterized in that, The powder processing equipment includes: The receiving container (001) and the powder dust prevention and discharge device according to any one of claims 1-9, wherein the end of the lowest section of the multi-section conveying pipe (200) is in separable contact with the inner bottom wall of the receiving container (001).

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