Powder material discharging mechanism

Abstract

The application discloses a powder material unloading mechanism and relates to the technical field of material supply equipment. The mechanism adopts a jacking and transition hopper butt joint mode, realizes liquid sealing, high flexibility of unloading, and hard contact-free wide-range butt joint, and the sealing butt joint and the bottom surface of the split container have no interaction force. While reliable dust sealing butt joint is realized, real-time weighing is also realized, and the error influence of butt joint on weighing is eliminated. Traditional butt joint modes cannot realize complete sealing, and the application adopts fluid butt joint sealing to realize absolute dust sealing. The powder material is unloaded in a jacking and hard pipe mode, so that the problems of traditional telescopic pipes, such as difficult installation and easy dust accumulation, are avoided. The position error tolerance capability during butt joint is improved. For special dangerous dust materials, the dust directly merges into the fluid, the dust combustion and explosion risk is reduced, and the butt joint safety is improved.

Description

Technical Field

[0001] This invention relates to the field of material supply equipment technology, and in particular to a powder material feeding mechanism that employs a dedicated fluid sealing docking structure and has low requirements for docking position accuracy. Background Technology

[0002] A dedicated discharging mechanism is required when materials are discharged from storage containers to dispensing containers to ensure reliable discharging. For powdery materials, it is not only necessary to ensure reliable discharging, but also to prevent dust from escaping during discharging, while enabling real-time weighing. The smaller the impact of the discharging mechanism on the weighing, the higher the weighing accuracy.

[0003] Existing technologies often employ a sealing method that involves adding a flexible hose and a soft material between the docking device and the dispensing container. The docking seal is achieved by extending and contracting the hose and applying pressure to the soft material, thus preventing dust from escaping.

[0004] The existing technology includes a mounting base, a feed inlet, and a telescopic hose, with the feed inlet and mounting base having a concave-convex fit. The feed inlet is connected to the telescopic hose. During feeding, the mounting base, installed at the opening of the feeding hopper, is placed below the feed inlet. The telescopic hose drives the feed inlet to descend and precisely install it with the mounting base. The concave-convex fit between the feed inlet and the mounting base, along with the pressure seat pressing against the rotating block, achieves a secure installation and a sealed connection. In this state, dust is prevented from escaping during feeding.

[0005] The disadvantages of existing technologies include: 1. The method of applying pressure to deform flexible materials (or rigidly connecting them) to achieve a sealing connection will affect the weighing accuracy of the bottom weighing platform.

[0006] 2. The applied pressure is not easy to adjust. Excessive pressure will affect the weighing accuracy, while insufficient pressure will result in an unsatisfactory sealing effect.

[0007] 3. The internal structure of the flexible hose is multi-layered, which makes it easy for dust to accumulate and is not easy to clean. Dust may remain at the interface.

[0008] 4. Positional accuracy is required when docking the two ends, but the tolerance for docking position errors is poor. Summary of the Invention

[0009] In view of the above problems, the present invention provides a powder material feeding mechanism to overcome or at least partially solve the above problems. It solves the problem of the impact on the weighing accuracy of traditional dust-sealing docking mechanisms. It also solves the problems of the telescopic tube being difficult to install and prone to dust accumulation. Furthermore, it solves the problem of poor positional error tolerance during docking in traditional dust-sealing docking mechanisms.

[0010] This invention provides the following solution: A powder material feeding mechanism, comprising: Lifting weighing platform, transition sealing device and unloading interface; The lifting and weighing platform includes a lifting mechanism and a weighing platform. The lifting mechanism is used to drive the weighing platform to rise and fall, and the weighing platform is used to carry the packaging container and weigh the packaging container in real time during the lifting and unloading process. The transition sealing device includes a transition hopper and a support. The bottom of the transition hopper is matched with the opening of the dispensing container. The transition hopper and the dispensing container are fitted with a conical self-centering fit. The support is used to support the transition hopper in a free state. The feeding interface includes a discharge channel and a sealing mating edge, which is matched with the edge of the upper feeding channel of the transition hopper; The upper feed channel edge of the transition hopper is provided with a fluid holding trough; the fluid holding trough is used to hold fluid. The lifting mechanism is configured as follows: The weighing platform and the dispensing container are lifted to contact the transition bucket and the transition bucket is disengaged from the support. The lifting continues so that the dispensing container carries the transition bucket up until the sealing docking edge extends into the fluid in the fluid holding tank to form a non-hard contact liquid seal docking. In this configuration, the sealing flange only contacts the fluid and not other structures of the transition bucket during the docking state, thereby eliminating the influence of docking force on the balancing accuracy. The discharge channel, transition hopper, and dispensing container form a continuous rigid pipe discharge path when docked, enabling real-time weighing and dispensing under absolute dust sealing.

[0011] Preferably, the bottom of the transition hopper and the dispensing container opening adopt a conical self-centering structure to achieve automatic centering and tight sealing between the transition hopper and the dispensing container opening.

[0012] Preferably, the lifting mechanism maintains the docking state of the dispensing container, the transition hopper and the dispensing interface during the material feeding process, and the weighing platform weighs the dispensing container in real time in the docking state, and stops feeding when the material weight reaches the set value.

[0013] Preferably, the lifting mechanism is configured to remain in a docking state after the material is unloaded and wait for a preset time until the dust settles before performing the lowering action.

[0014] Preferably, the dispensing container is placed on the weighing platform by a person or a robot, and is removed by a person or a robot after the unloading is completed.

[0015] Preferably, the discharge channel is a rigid pipe channel, through which powdered material enters the dispensing container via the discharge channel and the transition hopper, in order to avoid dust accumulation in the telescopic pipe.

[0016] Preferably, the transition bucket is placed on the support in the initial state, the lifting mechanism is in the lowest position, and the feeding interface is separated from the transition sealing device.

[0017] Preferably, the mating structure between the sealing flange and the fluid holding tank has tolerance for misalignment errors, so that the sealing flange can still extend into the fluid to achieve a seal when it deviates from the center position in the horizontal direction.

[0018] According to specific embodiments provided by the present invention, the present invention discloses the following technical effects: This application provides a powder material feeding mechanism that uses a lifting and transition hopper docking method to achieve liquid sealing, high feeding flexibility, and a wide-range docking without hard contact. There is no interaction force between the sealed docking interface and the bottom packaging container. While achieving reliable dust-sealed docking, it also enables real-time weighing, eliminating the influence of weighing errors during docking. Traditional docking methods cannot achieve complete sealing; this invention uses fluid docking sealing to achieve absolute dust sealing. The lifting and rigid pipe feeding method avoids the problems of traditional telescopic pipes being difficult to install and prone to dust accumulation. It improves the tolerance for positional errors during docking. For particularly hazardous dusty materials, the dust is directly integrated into the fluid, reducing the risk of dust explosion and increasing docking safety.

[0019] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a powder material feeding mechanism provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the lifting and weighing platform provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the transition sealing device provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the material feeding interface provided in an embodiment of the present invention; Figure 5This is a partial schematic diagram of the sealing mating edge entering the fluid for sealing according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the initial working state of a powder material feeding mechanism provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the dispensing container provided in this embodiment of the invention when it is placed on a weighing platform; Figure 8 This is a schematic diagram of the docking of the transition hopper and the dispensing container provided in an embodiment of the present invention; Figure 9 This is a cross-sectional view of the transition hopper and the dispensing container docking as provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the connection between the transition bucket and the sealing eaves provided in an embodiment of the present invention; Figure 11 This is a cross-sectional view of the transition bucket and the sealing eaves provided in an embodiment of the present invention.

[0022] In the diagram: Lifting and weighing platform 1, Lifting mechanism 101, Weighing platform 102, Transition sealing device 2, Transition hopper 201, Fluid container 2011, Support 202, Discharge interface 3, Discharge channel 301, Sealing docking eaves 302, Dispensing container 4, Fluid 5. Detailed Implementation

[0023] 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 a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0024] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 This invention provides a powder material feeding mechanism, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the organization may include: 1. Lifting weighing platform; 2. Transition sealing device; and 3. Material unloading interface. The lifting and weighing platform 1 includes a lifting mechanism 101 and a weighing platform 102. The lifting mechanism 101 is used to drive the weighing platform 102 to rise and fall. The weighing platform 102 is used to carry the dispensing container 4 and to weigh the dispensing container 4 in real time during the lifting and unloading process. The transition sealing device 2 includes a transition hopper 201 and a support 202. The bottom of the transition hopper 201 is matched with the opening of the dispensing container 4. The transition hopper 201 and the dispensing container 4 are fitted with a conical self-centering fit. The support 202 is used to support the transition hopper 201 in a free state. The feeding interface 3 includes a discharge channel 301 and a sealing docking eave 302, wherein the sealing docking eave 302 is matched with the edge of the upper feeding channel of the transition hopper 201; The upper feed channel edge of the transition hopper 201 is provided with a fluid holding trough 2011; the fluid holding trough 2011 is used to hold fluid 5; The lifting mechanism 101 is configured as follows: The weighing platform 102 and the dispensing container 4 are lifted to contact the transition bucket 201 and the transition bucket 201 is detached from the support 202. The lifting continues to make the dispensing container 4 carry the transition bucket 201 up until the sealing docking eaves 302 extend into the fluid 5 in the fluid holding tank 2011 to form a non-hard contact liquid seal docking. In this configuration, the sealing flange 302 only contacts the fluid and not the other structures of the transition hopper 201 during the docking state, thereby eliminating the influence of docking force on the balancing accuracy. The discharge channel 301, the transition hopper 201, and the dispensing container 4 form a continuous rigid pipe discharge path when they are docked, so as to realize real-time weighing and dispensing under absolute dust sealing.

[0025] The powder material feeding mechanism provided in this application uses fluid as the sealing medium and employs a lifting and transition hopper 201 separation and docking method to achieve fluid sealing, high feeding flexibility, and a wide-range docking without hard contact. There is no interaction force between the interface and the bottom packaging container 4. A dedicated fluid sealing docking structure is used, resulting in low requirements for docking position accuracy.

[0026] The lifting and weighing platform 1 provided in this embodiment includes a lifting mechanism 101, a weighing platform 102, etc., for lifting and weighing the dispensing container 4. The transition sealing device 2 includes a transition hopper 201 and a support 202, wherein the bottom of the transition hopper 201 is designed to be perfectly matched with the opening of the dispensing container 4; a fluid holding groove 2011 is designed around the edge of the upper feed channel of the transition hopper 201 for holding fluid. The support 202 is used to support the transition hopper 201.

[0027] The bottom of the transition hopper 201 and the opening of the dispensing container 4 adopt a conical self-centering structure to achieve automatic alignment and tight sealing between the transition hopper 201 and the opening of the dispensing container 4, ensuring reliable docking and sealing.

[0028] During the unloading process, the lifting mechanism 101 maintains the docking state of the dispensing container 4, the transition hopper 201 and the unloading interface 3. The weighing platform 102 weighs the dispensing container 4 in real time in the docking state and stops unloading when the unloading weight reaches the set value.

[0029] The lifting mechanism 101 is configured to remain in a docking state after the material is unloaded and wait for a preset time until the dust settles before performing the lowering action.

[0030] The dispensing container 4 is placed on the weighing platform 102 by a person or a robot, and is removed by a person or a robot after the unloading is completed.

[0031] The feeding interface 3 is mainly a discharge channel 301, and its edge is designed with a sealing mating edge 302 to match the transition sealing device 2. The feeding interface 3 is used for temporary connection with the transition sealing device 2 to achieve sealed discharge. The discharge channel 301 is a rigid pipe channel. Powdered materials enter the dispensing container 4 through the discharge channel 301 and the transition hopper 201 to avoid dust accumulation in the telescopic tube.

[0032] The transition bucket 201 is placed on the support 202 in the initial state, the lifting mechanism 101 is in the lowest position, and the feeding interface 3 is separated from the transition sealing device 2.

[0033] The mating structure between the sealing flange 302 and the fluid holding tank 2011 has the ability to tolerate the error of the mating position, so that the sealing flange 302 can still extend into the fluid to achieve a seal when it deviates from the center position in the horizontal direction.

[0034] The workflow of the powder material feeding mechanism provided in this application embodiment includes: 1. Initial working status, such as Figure 6 As shown, the lifting mechanism 101 of the lifting weighing platform 1 is located at the bottom, the transition bucket 201 is placed on the support 202, and the material unloading interface 3 and the transition sealing device 2 are in a separated state.

[0035] 2. During work, such as Figure 7 As shown, the packaging container 4 (which can be of any shape, as long as the interface is designed to match) is placed from the previous station onto the weighing platform 102 of the lifting weighing platform 1 by manual labor or robotic arms.

[0036] 3. The lifting mechanism 101 of the lifting weighing platform 1 is activated, lifting the dispensing container 4 from the bottom to the top. 4. The lifting mechanism 101 lifts the dispensing container 4 to contact the transition sealing device 2 and fully aligns it, as shown. Figure 8 , Figure 9As shown, at this time, the transition hopper 201 detaches from the support 202 and the transition hopper 201 is tightly attached to the opening of the dispensing container 4.

[0037] 5. The lifting mechanism 101 continues to lift, and the dispensing container 4, along with the transition hopper 201, moves upward to connect with the discharge port. Figure 10 , Figure 11 As shown, at this time, the sealing flange 302 of the discharge port is connected to the fluid tank of the transition hopper 201. The bottom of the flange extends into the fluid 5 to form contact, but does not contact other structures, achieving a sealing effect without hard contact. At the same time, as long as the sealing flange 302 does not contact the edge of the fluid holding tank 2011, it will not affect the weighing accuracy. Therefore, the accuracy requirement for the connection position is very low. The detailed diagram of the sealing connection state is shown.

[0038] 6. Under sealed connection, the powdered material flows down from the discharge channel 301 of the feeding interface 3 and enters the packaging container 4. The weighing platform 102 weighs the material in real time, and the feeding stops when the set weight is reached.

[0039] 7. After waiting for a period of time and when no dust is scattered, the lifting mechanism 101 moves down, sequentially completing the separation of the transition bucket 201 from the material feeding interface 3 and from the dispensing container 4. Then, the dispensing container 4 is taken away manually or by a robot, and the whole process ends.

[0040] In summary, the powder material feeding mechanism provided in this application adopts a lifting and transition hopper docking method to achieve liquid sealing, high flexibility in feeding, and a wide-range docking without hard contact. There is no interaction force between the sealed interface and the bottom packaging container. While achieving reliable dust-sealed docking, it also enables real-time weighing, eliminating the influence of weighing errors during docking. Traditional docking methods cannot achieve complete sealing; this fluid docking seal achieves absolute dust sealing. The lifting and rigid pipe feeding method avoids the problems of traditional telescopic pipes being difficult to install and prone to dust accumulation. It improves the tolerance for positional errors during docking. For particularly hazardous dusty materials, the dust is directly integrated into the fluid, reducing the risk of dust explosion and increasing docking safety.

[0041] 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.

[0042] As can be seen from the above description of the embodiments, those skilled in the art can clearly understand that this application can be implemented by means of software plus necessary general-purpose hardware platforms. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments or some parts of the embodiments of this application.

[0043] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, for system or system embodiments, since they are basically similar to method embodiments, the description is relatively simple, and relevant parts can be referred to the descriptions in the method embodiments. The systems and system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A powdered material feeding mechanism, characterized in that, Includes a lifting weighing platform, a transition sealing device, and a material unloading interface; The lifting and weighing platform includes a lifting mechanism and a weighing platform. The lifting mechanism is used to drive the weighing platform to rise and fall, and the weighing platform is used to carry the packaging container and weigh the packaging container in real time during the lifting and unloading process. The transition sealing device includes a transition hopper and a support. The bottom of the transition hopper is matched with the opening of the dispensing container. The transition hopper and the dispensing container are fitted with a conical self-centering fit. The support is used to support the transition hopper in a free state. The feeding interface includes a discharge channel and a sealing mating edge, which is matched with the edge of the upper feeding channel of the transition hopper; The upper feed channel edge of the transition hopper is provided with a fluid holding trough; the fluid holding trough is used to hold fluid. The lifting mechanism is configured as follows: The weighing platform and the dispensing container are lifted to contact the transition bucket and the transition bucket is disengaged from the support. The lifting continues so that the dispensing container carries the transition bucket up until the sealing docking edge extends into the fluid in the fluid holding tank to form a non-hard contact liquid seal docking. In this configuration, the sealing flange only contacts the fluid and not other structures of the transition bucket during the docking state, thereby eliminating the influence of docking force on the balancing accuracy. The discharge channel, transition hopper, and dispensing container form a continuous rigid pipe discharge path when docked, enabling real-time weighing and dispensing under absolute dust sealing.

2. The powder material feeding mechanism according to claim 1, characterized in that, The bottom of the transition hopper and the opening of the dispensing container adopt a conical self-centering structure to achieve automatic centering and tight sealing between the transition hopper and the opening of the dispensing container.

3. The powder material feeding mechanism according to claim 1, characterized in that, During the material feeding process, the lifting mechanism maintains the docking state of the dispensing container, the transition hopper, and the material feeding interface. The weighing platform weighs the dispensing container in real time while docked, and stops feeding when the material weight reaches the set value.

4. The powdered material feeding mechanism according to claim 1, characterized in that, The lifting mechanism is configured to remain in a docking state after the material is unloaded and wait for a preset time until the dust settles before performing the lowering action.

5. The powder material feeding mechanism according to claim 1, characterized in that, The dispensing containers are placed on the weighing platform by manual labor or a robotic arm, and removed by manual labor or a robotic arm after the unloading is completed.

6. The powdered material feeding mechanism according to claim 1, characterized in that, The discharge channel is a rigid pipe channel. Powdered materials enter the dispensing container through the discharge channel and the transition hopper to avoid dust accumulation in the telescopic pipe.

7. The powder material feeding mechanism according to claim 1, characterized in that, The transition bucket is placed on the support in the initial state, the lifting mechanism is in the lowest position, and the feeding interface is separated from the transition sealing device.

8. The powder material feeding mechanism according to claim 1, characterized in that, The mating structure between the sealing flange and the fluid holding tank has tolerance for misalignment errors, so that the sealing flange can still extend into the fluid to achieve a seal when it deviates from the center position in the horizontal direction.

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