Feeding device and battery production system

Abstract

According to the feeding device and the battery production system, the material loosening mechanism is used for vibrating or stirring materials in the material bin, so that the materials in the material bin are dispersed, the phenomena of overhead, bridging, blocking, wall attaching and the like of the materials are reduced, and therefore the materials can smoothly and evenly fall into the discharging channel. Due to the fact that the compacting mechanism can compact the materials in the discharging channel, the materials falling into the discharging channel are dense, uncontrollable discharging of the materials between the feeding mechanism and the discharging channel due to looseness is reduced, the probability of feeding deviation is effectively reduced, the uniformity and consistency of the discharging amount of the materials are improved, and the discharging quality of the materials is improved. And quantitative continuous feeding is realized.

Description

Technical Field

[0001] The present application relates to the technical field of continuous feeding, and in particular to a feeding device and a battery production system. Background Art

[0002] In the field of continuous powder feeding, in order to achieve quantitative feeding, a feeding screw is usually used in the feeding device, and the rotation of the feeding screw drives the quantitative output of the material. However, due to the structural design of the traditional feeding device, the material discharge amount is uneven, and quantitative continuous feeding cannot be achieved. Utility Model Content

[0003] Based on this, it is necessary to provide a feeding device and a battery production system to improve the uniformity of the material output and achieve quantitative continuous feeding.

[0004] In the first aspect, the present application provides a feeding device, which includes: a feeding body, including a silo and a discharge channel connected to the silo; a feeding mechanism, which is at least partially arranged in the discharge channel; wherein the feeding device also includes a loosening mechanism and a compacting mechanism, the loosening mechanism is used to vibrate and / or stir the material in the silo, and the compacting mechanism is used to compact the material in the discharge channel.

[0005] The above-mentioned feeding device uses the loosening mechanism to vibrate or stir the materials in the silo, so that the materials in the silo are more dispersed, reducing the phenomena of overhead, bridging, lumping, wall adhesion, etc. of the materials, so that the materials can fall smoothly and evenly into the discharge channel. Since the compacting mechanism can compact the materials in the discharge channel, the materials falling into the discharge channel are relatively dense, reducing the uncontrollable discharge of the materials from the feeding mechanism and the discharge channel due to looseness, thereby effectively reducing the probability of feeding deviation, improving the uniformity and consistency of the material discharge amount, and realizing quantitative continuous feeding.

[0006] In some embodiments, the compacting mechanism includes a vacuum pump and a first filter element, the first filter element is located in the discharge channel and is arranged around the outer periphery of the feeding mechanism, and the vacuum pump is used to adsorb the material in the discharge channel onto the first filter element. In this design, the vacuum pump cooperates with the first filter element to drive the material in the discharge channel to be adsorbed onto the first filter element, thereby improving the compactness of the material and facilitating the stable quantitative discharge of the feeding mechanism.

[0007] In some embodiments, the compacting mechanism further includes a first back-blowing valve, which is connected to the discharge channel and is used to control the gas to blow off the material adhering to the first filter element. With such a design, the first back-blowing valve is introduced to facilitate blowing gas into the first filter element, and the gas is used to blow off the adhering material, thereby improving the permeability of the first filter element and reducing the probability of the material being loosened and falling due to the blockage of the first filter element.

[0008] In some embodiments, the compacting mechanism further includes a filter assembly, and the vacuum pump is connected to the discharge channel through the filter assembly. In this design, the filter assembly is introduced to filter the extracted airflow, thereby reducing the probability of equipment failure caused by the material directly entering the vacuum pump with the airflow, which is conducive to extending the service life of the equipment.

[0009] In some embodiments, the filter assembly includes a housing and a second filter element disposed in the housing, the second filter element divides the housing into a first chamber and a second chamber, the first chamber is connected to the vacuum pump, and the second chamber is connected to the discharge channel. In this design, the second filter element is disposed in the housing, which can effectively filter the material in the airflow, reduce the probability of the material entering the vacuum pump with the airflow, and thus effectively reduce the equipment failure rate.

[0010] In some embodiments, the filter assembly further includes a first control valve, the second chamber is connected to the silo, and the first control valve is used to control the connection or disconnection between the second chamber and the silo. In this design, the connection between the second chamber and the silo is controlled by the first control valve, so that the filtered material falls back into the silo, thereby improving the utilization rate of the material.

[0011] In some embodiments, the filter assembly further includes a second back-blowing valve, which is connected to the first chamber and is used to control the gas to blow toward the second filter element. With such a design, the second back-blowing valve is introduced to facilitate blowing gas into the second filter element, and the gas is used to blow off the adhered materials, thereby improving the permeability of the second filter element and reducing the probability of loosening and falling of materials due to blockage of the second filter element.

[0012] In some embodiments, the loosening mechanism further includes an impactor, which is located outside the silo and in contact with the silo, and is used to connect to an external power source. With such a design, the impactor is introduced to form an impact vibration on the silo wall, shaking off the material attached to the wall; at the same time, the material can also be dispersed, so that the material in the silo can enter the discharge channel more smoothly.

[0013] In some embodiments, the loosening mechanism further includes a vibration motor, and the vibration end of the vibration motor is in contact with the silo. In this design, the introduction of the vibration motor increases the vibration intensity of the silo, so that the material in the silo is in a loose state, and the smoothness and uniformity of the material discharge are improved, thereby achieving uniform discharge and improving discharge efficiency.

[0014] In some embodiments, the loosening mechanism further includes a stirring member, which is located in the silo and can rotate around its own axis. With such a design, the stirring member stirs the material in the silo to make the material in a loose state, thereby making the material discharge in the silo smoother and more uniform.

[0015] In some embodiments, the feeding mechanism includes a driver and a screw driven to rotate by the driver, the screw is located in the discharge channel, and the stirring element is connected to the driver. In this design, the driver synchronously drives the stirring element and the screw to rotate, so that the material is stirred and conveyed; at the same time, the stirring element and the screw share the same driver, which reduces the investment in equipment and reduces the equipment cost.

[0016] In some embodiments, the feeding device further includes a weighing device, which is located at the discharge end of the discharge channel and is used to receive the material output from the discharge channel. With such a design, the introduction of the weighing device can adjust the feeding speed of the feeding mechanism according to the actual weighing, which can effectively reduce the occurrence of feeding deviation and non-feeding, and improve the feeding efficiency of the equipment.

[0017] In some embodiments, the feeding device further includes a breathable member, which is connected to the silo and used to communicate with the outside world. In this design, the breathable member is introduced to connect the silo with the outside world, reduce the vacuum degree in the silo, and allow the material in the silo to fall smoothly into the discharge channel.

[0018] In a second aspect, the present application provides a battery production system, the battery production system comprising any one of the above feeding devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the feeding device described in one or more embodiments of the present application.

[0020] Figure 2 for Figure 1 Schematic diagram of the structure at the discharge channel in.

[0021] Figure 3 for Figure 1 Schematic diagram of the structure of the filtering component in .

[0022] 100, feeding device; 10, feeding body; 11, silo; 111, feeding channel; 12, discharging channel; 20, feeding mechanism; 21, screw; 22, driver; 30, loosening mechanism; 31, impactor; 311, third control valve; 32, vibration motor; 321, vibration end; 33, stirring element; 40, compacting mechanism; 41, vacuum pump; 411, first pipe fitting; 412, second control valve; 42, first filter element; 43, first back-blowing valve; 431, first back-blowing pipe; 44, filter assembly; 441, housing; 44a, first chamber; 44b, second chamber; 442, second filter element; 443, first control valve; 444, third pipe fitting; 445, second back-blowing valve; 44c, second back-blowing pipe; 446, second pipe fitting; 50, breathable element; 60, weighing device; 200, material. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] With the rapid development of automation technology, automated continuous quantitative feeding is widely used in various industries. For example, in the battery production process, positive electrode powder or negative electrode powder needs to be continuously and quantitatively output. In terms of structural design, the traditional feeding device uses the material in the silo to fall into the discharge channel; and then uses the feeding screw to quantitatively output the material in the discharge channel.

[0030] However, during the material discharge process, the materials in the silo are prone to bridge, empty, clumping, and wall adhesion, which results in material not being able to enter the discharge channel smoothly. Since the material is not discharged smoothly, material accumulation is likely to occur at the bottom of the silo, resulting in the compaction of the material at this position, the reduction of the gaps between the materials, and a greater density of material discharge; while the material at the top of the silo is the opposite, the material is in a loose state, the gaps between the materials increase, and the material discharge density is even lower. In this way, the amount of material discharged into the discharge channel is uneven. Among them, material bridging refers to the phenomenon that the material forms an arched structure due to poor fluidity or large flow resistance; and material emptying refers to the phenomenon that the material forms a cavity due to poor fluidity or large flow resistance.

[0031] At the same time, due to the unsmooth feeding, the material entering the discharge channel is unevenly distributed, and the material as a whole is also loose. At this time, part of the material will be uncontrollably discharged from the gap between the feeding screw and the discharge channel, resulting in uneven material discharge and inability to achieve quantitative continuous feeding.

[0032] Based on this, in order to solve the problem of uneven discharge volume and inability to achieve quantitative continuous feeding in traditional feeding, this application proposes a feeding device, which uses a loosening mechanism to vibrate or stir the material in the silo, so that the material in the silo is more dispersed, reducing the phenomenon of material overhead, bridging, agglomeration, wall adhesion, etc., so that the material can fall smoothly and evenly into the discharge channel. Since the compacting mechanism can compact the material in the discharge channel, the material falling into the discharge channel is relatively dense, reducing the uncontrollable discharge of the material from the feeding mechanism and the discharge channel due to looseness, thereby effectively reducing the probability of feeding deviation, improving the uniformity and consistency of the material discharge volume, and achieving quantitative continuous feeding.

[0033] The feeding device provided in the present application is not limited to battery production systems, but can also be used in other processes that require continuous quantitative feeding.

[0034] According to some embodiments of this application, please refer to Figure 1 The present application provides a feeding device 100, which includes: a feeding body 10, a feeding mechanism 20, a loosening mechanism 30 and a compacting mechanism 40. The feeding body 10 includes a silo 11 and a discharge channel 12 connected to the silo 11, and the feeding mechanism 20 is at least partially disposed in the discharge channel 12. The feeding device 100 also includes a loosening mechanism 30 and a compacting mechanism 40, the loosening mechanism 30 is used to vibrate and / or stir the material 200 in the silo 11, and the compacting mechanism 40 is used to compact the material 200 in the discharge channel 12.

[0035] The silo 11 refers to a structure that has the function of accommodating the material 200, and its shape can be designed in a variety of ways, for example: the silo 11 can be designed as a cuboid, a cube, a cylinder, a cone, etc.; it can also be designed as an irregular shape. When the cross-sectional area of ​​a portion of the silo 11 close to the discharge channel 12 is smaller as it is closer to the discharge channel 12, the material 200 can be fed into the discharge channel 12 more quickly. In order to facilitate the feeding of materials into the silo 11, a feeding channel 111 can be provided on the silo 11, and the feeding channel 111 and the discharge channel 12 are located at opposite ends of the silo 11.

[0036] The discharge channel 12 refers to a structure that can receive the material 200 in the silo 11, and its shape can also be designed in a variety of ways, for example: the discharge channel 12 can be designed as a tubular structure, or a box structure, etc. When the center line of the discharge channel 12 is designed to be colinear with the center line of the silo 11, it can be helpful to improve the uniformity of the fall. Of course, in other embodiments, the center line of the discharge channel 12 and the center line of the silo 11 can also be set at a certain angle, such as the two are perpendicular to each other.

[0037] The feeding mechanism 20 refers to a device that can output the material 200 in the discharge channel 12 in a certain amount, which can be a screw conveyor device or a belt conveyor device. When the belt conveyor device is used, the discharge channel 12 can be placed at a certain slope; or, a plurality of baffles and other structures can be set on the belt.

[0038] The loosening mechanism 30 is a device that can vibrate and / or stir the material 200 in the silo 11, so that the material 200 in the silo 11 is in a loose state. When the loosening mechanism 30 vibrates the material 200 in the silo 11, at least part of it can be located in the silo 11 and directly contact the material 200; or it can be located entirely outside the silo 11 and vibrate the silo wall of the silo 11 to achieve vibration of the material 200 in the silo 11.

[0039] The compacting mechanism 40 refers to a device that can compact the material 200 in the discharge channel 12. For example, the compacting mechanism 40 can suck the discharge channel 12 so that the material 200 is sucked onto the inner wall of the discharge channel 12; or, the compacting mechanism 40 can start to blow air from the center of the discharge channel 12 so that the material 200 is blown onto the inner wall of the feeding mechanism 20 or the discharge channel 12, etc.

[0040] In order to improve the problem of uneven discharge and inability to achieve quantitative continuous feeding, in this example, the loosening mechanism 30 and the compacting mechanism 40 are comprehensively utilized to make the material 200 in the silo 11 loose and the material 200 in the discharge channel 12 compact, so that the amount of the material 200 is more uniform. In the feeding device 100, if only the loosening mechanism 30 is used, although smooth and uniform discharge can be achieved, the material 200 in the discharge channel 12 is still relatively loose, so that part of the material 200 will be uncontrollably discharged from between the discharge channel 12 and the feeding mechanism 20 during discharge, causing deviation in the discharge amount. If only the compacting mechanism 40 is used, although the material 200 in the discharge channel 12 can be compacted, the material 200 in the silo 11 is not discharged smoothly and evenly, resulting in uneven distribution of the material 200 in the discharge channel 12 and insufficient discharge amount, which still affects the uniformity of the discharge amount.

[0041] Such a design effectively reduces the probability of feeding deviation, improves the uniformity and consistency of the discharge amount of the material 200, and realizes quantitative continuous feeding.

[0042] According to some embodiments of the present application, optionally, please refer to Figure 1 and Figure 2 The compacting mechanism 40 includes a vacuum pump 41 and a first filter element 42 . The first filter element 42 is located in the discharge channel 12 and is arranged around the outer periphery of the feeding mechanism 20 . The vacuum pump 41 is used to adsorb the material 200 in the discharge channel 12 onto the first filter element 42 .

[0043] The vacuum pump 41 refers to a device for providing a negative pressure environment in the discharge channel 12 , and the first filter element 42 refers to a mesh structure capable of filtering most or all of the material 200 , and the size of the mesh thereon can be determined according to the size of the material 200 .

[0044] When the first filter element 42 is disposed around the outer periphery of the feeding mechanism 20, the first filter element 42 is in a columnar structure, and is enclosed inside to receive the material 200 in the silo 11. When the vacuum pump 41 is started, the material 200 inside the first filter element 42 is adsorbed on the side surface of the first filter element 42 facing the feeding mechanism 20, and as the suction continues, the material 200 is gradually compacted on the first filter element 42.

[0045] In order to reduce the space occupied by the first filter element 42 in the discharge channel 12, the first filter element 42 can be attached to the inner wall of the discharge channel 12; it can also be fixed by bolt connection, clamping, bonding, welding and the like.

[0046] With such a design, the vacuum pump 41 cooperates with the first filter element 42 to drive the material 200 in the discharge channel 12 to be sucked onto the first filter element 42, thereby increasing the compactness of the material 200 and facilitating the feeding mechanism 20 to discharge the material stably and quantitatively.

[0047] According to some embodiments of the present application, optionally, please refer to Figure 2 The compacting mechanism 40 further includes a first back-blow valve 43 , which is connected to the discharge channel 12 and is used to control the gas to blow off the material 200 adhered to the first filter element 42 .

[0048] The first back-blowing valve 43 is a component that controls whether the gas is blown into the discharge channel 12, and it can be, but not limited to, a solenoid valve, a butterfly valve, a ball valve, etc. One end of the first back-blowing valve 43 away from the discharge channel 12 is connected to an external gas source, so that when the first back-blowing valve 43 is opened, the gas is blown into the discharge channel 12 through the first back-blowing valve 43, and the material 200 adhered to the first filter element 42 is blown off into the discharge channel 12.

[0049] In some examples, the compacting mechanism 40 further includes a first backflush pipe 431, one end of which is connected to the discharge channel 12, and the other end is used to communicate with an external gas source, and the first backflush valve 43 is disposed on the first backflush pipe 431. Among them, one end of the first backflush pipe 431 may not extend into the discharge channel 12; it may also extend into the discharge channel 12, but it must be located on the side of the first filter element 42 facing away from the feeding mechanism 20. At the same time, there are a variety of gas options, as long as they do not react with the material 200, such as: air, carbon dioxide, nitrogen, etc.

[0050] It should also be noted that before the first back-blowing valve 43 is opened, the operation of the vacuum pump 41 needs to be stopped, so that the suction and back-blowing operations will not be performed simultaneously and interfere with each other. The opening timing of the first back-blowing valve 43 can be opened regularly by setting a program; it can also be judged by the amount of material 200 adhered to the first filter element 42. If the thickness of the material 200 on the first filter element 42 reaches a certain amount, the first back-blowing valve 43 is opened.

[0051] With such a design, the first back-blow valve 43 is introduced to facilitate blowing gas onto the first filter element 42, so as to use the gas to blow off the adhering material 200, thereby improving the permeability of the first filter element 42 and reducing the probability of the material 200 loosening and falling due to blockage of the first filter element 42.

[0052] According to some embodiments of the present application, optionally, please refer to Figure 1 The compacting mechanism 40 further includes a filter assembly 44 , and the vacuum pump 41 is connected to the discharge channel 12 through the filter assembly 44 .

[0053] The filter assembly 44 refers to a component for filtering part of the material 200 sucked out from the discharge channel 12. The filter assembly 44 and the vacuum pump 41 are both located outside the feeding body 10 and are connected through various pipes. In some examples, the vacuum pump 41 is connected to the filter assembly 44 through the first pipe 411, and the filter assembly 44 is connected to the discharge channel 12 through the second pipe 446. Among them, the first pipe 411 can be provided with a second control valve 412, and the second control valve 412 can be, but is not limited to, a solenoid valve, a pneumatic valve, a butterfly valve, a ball valve, etc.

[0054] With such a design, the filter assembly 44 is introduced to filter the extracted airflow, thereby reducing the probability of equipment failure caused by the material 200 directly entering the vacuum pump 41 along with the airflow, which is beneficial to extending the service life of the equipment.

[0055] According to some embodiments of the present application, optionally, please refer to Figure 3 The filter assembly 44 includes a shell 441 and a second filter element 442 disposed in the shell 441. The second filter element 442 divides the shell 441 into a first chamber 44a and a second chamber 44b. The first chamber 44a is connected to the vacuum pump 41, and the second chamber 44b is connected to the discharge channel 12.

[0056] The housing 441 refers to the shell structure of the filter assembly 44, and its shape can be designed in various ways, such as cylindrical, rectangular, cube, etc. The second filter element 442 refers to a porous structure that can filter most or all of the material 200, and it can be designed as a filter screen structure or a filter cartridge.

[0057] The second filter element 442 is inside the housing 441, and can separate the interior of the housing 441 into a first chamber 44a and a second chamber 44b. When the vacuum pump 41 is started, the airflow carries part of the material 200 through the first filter element 42 and flows out of the discharge channel 12; after flowing out, it enters the second chamber 44b. Since the second filter element 442 is separated between the first chamber 44a and the second chamber 44b, most or all of the material 200 is intercepted by the second filter element 442 and accumulated in the second chamber 44b. The filtered airflow enters the first chamber 44a, and flows from the first chamber 44a into the vacuum pump 41.

[0058] In addition, the number of the second filter element 442 can be one or more. When the number of the second filter element 442 is more than one, all the second filter elements 442 can be spaced apart along the height direction of the housing 441, and the first chamber 44a and the second chamber 44b are respectively located on opposite sides of all the second filter elements 442.

[0059] With such a design, a second filter element 442 is disposed in the housing 441, which can effectively filter the material 200 in the airflow, reduce the probability of the material 200 entering the interior of the vacuum pump 41 along with the airflow, and thus effectively reduce the equipment failure rate.

[0060] According to some embodiments of the present application, optionally, please refer to Figure 1 and Figure 3 The filter assembly 44 further includes a first control valve 443 . The second chamber 44 b is connected to the silo 11 . The first control valve 443 is used to control the connection or disconnection between the second chamber 44 b and the silo 11 .

[0061] The first control valve 443 is a component that controls whether the second chamber 44b and the silo 11 are connected, and may be, but not limited to, a solenoid valve, a pneumatic valve, etc. When the first control valve 443 is opened, the second chamber 44b is connected to the silo 11, and the material 200 filtered in the second chamber 44b can fall back into the silo 11. Of course, the first control valve 443 can be opened after the vacuum pump 41 stops working.

[0062] The filter assembly 44 may not be fixed on the silo 11, for example, the filter assembly 44 is located on one side of the silo 11 and is arranged higher than the silo 11; it may also be fixed on the silo 11. In some examples, the filter assembly 44 is located at the top of the silo 11, and in the height direction of the silo 11, the second chamber 44b is closer to the silo 11 than the first chamber 44a. A third pipe 444 is connected between the bottom of the housing 441 and the silo 11, and the first control valve 443 is disposed on the third pipe 444.

[0063] With such a design, the first control valve 443 controls the communication between the second chamber 44 b and the silo 11 , so that the filtered material 200 falls back into the silo 11 , thereby improving the utilization rate of the material 200 .

[0064] According to some embodiments of the present application, optionally, please refer to Figure 3 The filter assembly 44 further includes a second back-blow valve 445 , which is connected to the first chamber 44 a and is used to control the gas to blow toward the second filter element 442 .

[0065] The second blowback valve 445 is a component that controls whether the gas is blown into the first chamber 44a, and can be, but not limited to, a solenoid valve, a butterfly valve, a ball valve, etc. The end of the second blowback valve 445 away from the housing 441 is connected to an external gas source, so that when the second blowback valve 445 is opened, the gas is blown into the first chamber 44a through the second blowback valve 445, and the material 200 adhered to the second filter element 442 is blown off into the second chamber 44b.

[0066] In some examples, the filter assembly 44 further includes a second back-blowing pipe 44c, one end of which is connected to the first chamber 44a, and the other end is used to communicate with an external gas source, and a second back-blowing valve 445 is disposed on the second back-blowing pipe 44c. Among them, the end of the second back-blowing pipe 44c connected to the first chamber 44a can be disposed toward the second filter element 442; or, one end of the second back-blowing pipe 44c extends into the first chamber 44a and is located above the second filter element 442. This makes it easier to blow off the material 200 on the second filter element 442. At the same time, there are multiple options for the gas, as long as it does not react with the material 200, such as: air, carbon dioxide, nitrogen, etc.

[0067] It should also be noted that before the second back-blowing valve 445 is opened, the operation of the vacuum pump 41 must be stopped, so that the suction and back-blowing operations will not be performed simultaneously and interfere with each other. The opening timing of the second back-blowing valve 445 can be set to open regularly through a program; it can also be judged by the amount of material 200 adhered to the second filter element 442. If the thickness of the material 200 on the second filter element 442 reaches a certain amount, the second back-blowing valve 445 is opened.

[0068] At the same time, after the second back-blow valve 445 is opened, the first control valve 443 between the second chamber 44b and the silo 11 can be opened, so that the material 200 dropped by back-blow can be more easily returned to the silo 11. In addition, when the first back-blow valve 43 is provided on the discharge channel 12, the first back-blow valve 43 and the second back-blow valve 445 can be opened synchronously, for example: after the vacuum pump 41 stops working, the first back-blow valve 43 and the second back-blow valve 445 are opened synchronously, and the first control valve 443 is opened at the same time.

[0069] With such a design, the second back-blow valve 445 is introduced to facilitate blowing gas onto the second filter element 442, so as to use the gas to blow off the adhering material 200, thereby improving the permeability of the second filter element 442 and reducing the probability of the material 200 loosening and falling due to blockage of the second filter element 442.

[0070] According to some embodiments of the present application, optionally, please refer to Figure 1 The material loosening mechanism 30 further includes an impactor 31 , which is located outside the silo 11 and in contact with the silo 11 , and is used to be connected to an external power source.

[0071] The impactor 31 refers to a component that can impact the silo 11 under the action of a power source, and can be, but not limited to, an air hammer, an electric hammer, etc. The number of the impactors 31 can be one or more. When the number of the impactors 31 is more than one, at least some of the impactors 31 can be distributed at intervals around the periphery of the silo 11; or can be distributed at intervals along the height direction of the silo 11.

[0072] Meanwhile, the impactor 31 can be connected to an external power source through the third control valve 311, wherein the third control valve 311 can be, but not limited to, a solenoid valve, a butterfly valve, a ball valve, etc. The power source can be, but not limited to, compressed gas, a battery, etc.

[0073] During the quantitative discharging process, the impactor 31 can operate continuously or be started periodically. For example, when the material 200 on the wall of the silo 11 accumulates to a certain thickness, the impactor 31 is started to impact the silo 11 to shake off the material 200 adhering to the wall.

[0074] With such a design, the impactor 31 is introduced to generate impact vibration on the wall of the silo 11 to shake off the material 200 adhering to the wall; at the same time, the material 200 can also be dispersed, so that the material 200 in the silo 11 can enter the discharge channel 12 more smoothly.

[0075] According to some embodiments of the present application, optionally, please refer to Figure 1 The material loosening mechanism 30 further includes a vibration motor 32 , and a vibration end 321 of the vibration motor 32 is in contact with the material bin 11 .

[0076] The vibration motor 32 is a component that uses the centrifugal force generated by the high-speed rotation of the shaft and the eccentric block to obtain the exciting force. When the feeding mechanism also includes an impactor 31, the impactor 31 and the vibration motor 32 can be located on the same side of the silo 11; or they can be distributed on opposite sides of the silo 11.

[0077] With such a design, a vibration motor 32 is introduced to enhance the vibration intensity of the silo 11, so that the material 200 in the silo 11 is in a loose state, and the smoothness and uniformity of material discharge are improved, thereby achieving uniform material discharge and improving the discharge efficiency.

[0078] According to some embodiments of the present application, optionally, please refer to Figure 1 The material loosening mechanism 30 also includes a stirring member 33, which is located in the silo 11 and can rotate around its own axis.

[0079] The stirring member 33 is a component that can rotate around its own axis. When the stirring member 33 is located in the silo 11, the material 200 can be stirred to break up the clumped material 200. The power of the stirring member 33 can be provided by an additional motor or by the power in the feeding mechanism 20, that is, the stirring member 33 and the feeding mechanism 20 share the power. In some examples, the loosening mechanism 30 can include the stirring member 33, the impactor 31 and the vibration motor 32 at the same time.

[0080] With such a design, the material 200 in the silo 11 is stirred by the stirring member 33 , so that the material 200 is in a loose state, thereby making the discharge of the material in the silo 11 smoother and more uniform.

[0081] According to some embodiments of the present application, optionally, please refer to Figure 1 The feeding mechanism 20 includes a driver 22 and a screw 21 driven to rotate by the driver 22 . The screw 21 is located in the discharge channel 12 , and the stirring member 33 is drivingly connected to the driver 22 .

[0082] The screw 21 is a component that drives the material 200 in the discharge channel 12 to move forward by its own rotation. The screw 21 and the driver 22 can be connected in various ways, such as: the screw 21 and the conveying shaft of the driver 22 are coaxially connected; or the screw 21 and the driver 22 are connected by a belt or a gear set.

[0083] The stirring member 33 is connected to the driver 22, which means that the driver 22 drives the screw 21 to rotate while driving the stirring member to rotate around its own axis. In some examples, the stirring member 33 and the screw 21 are spaced apart in the axial direction of the stirring member 33, and the two are coaxially connected, and the stirring member 33 is connected to the output shaft of the driver 22. The driver 22 can be a motor. At the same time, in order to facilitate the connection between the driver 22 and the stirring member 33, the driver 22 can be installed on the top of the silo 11.

[0084] With such a design, the driver 22 synchronously drives the stirring element 33 and the screw 21 to rotate, thereby achieving both stirring and conveying of the material 200; at the same time, the stirring element 33 and the screw 21 share the same driver 22, thereby reducing equipment investment and lowering equipment costs.

[0085] According to some embodiments of the present application, optionally, please refer to Figure 1The feeding device 100 also includes a weighing device 60 , which is located at the discharge end of the discharge channel 12 and is used to receive the material 200 output from the discharge channel 12 .

[0086] The weighing device 60 is a component that can measure the weight of the material 200 discharged each time, so that the feeding mechanism 20 can be automatically adjusted according to the actual weight on the weighing device 60. When the target weight differs greatly from the actual weight, high-speed feeding is adopted; when the target weight differs moderately from the actual weight, medium-speed feeding is adopted; and when the target weight differs slightly from the actual weight, low-speed feeding is adopted. In this way, the feeding method with three-stage speed regulation can ensure both the feeding speed and the feeding accuracy.

[0087] With such a design, the weighing device 60 is introduced to adjust the feeding speed of the feeding mechanism 20 according to the actual weighing, which can effectively reduce the occurrence of feeding deviation and non-feeding, and improve the feeding efficiency of the equipment.

[0088] According to some embodiments of the present application, optionally, please refer to Figure 1 The feeding device 100 further includes a breathable member 50, which is in communication with the silo 11 and is used to communicate with the outside world.

[0089] The air permeable member 50 refers to a component that allows the silo 11 to communicate with the outside. In some examples, the air permeable member 50 may be disposed on the top of the silo 11 .

[0090] With such a design, the air-permeable member 50 is introduced to connect the silo 11 with the outside, thereby reducing the vacuum degree in the silo 11 and allowing the material 200 in the silo 11 to smoothly fall into the discharge channel 12 .

[0091] According to some embodiments of the present application, the present application provides a battery production system, and the battery production system includes any one of the above feeding devices 100.

[0092] According to some embodiments of this application, please refer to Figures 1 to 3The present application provides a feeding device 100, which includes a driver 22, a screw 21, a first filter 42, a filter assembly 44, a vacuum pump 41, a first blowback valve 43, a second blowback valve 445, a stirring member 33, an impactor 31, a vibration motor 32, and a weighing device 60. The stirring member 33, the impactor 31, and the vibration motor 32 cooperate to reduce the phenomenon of the material 200 in the silo 11 being suspended, bridging, agglomerating, and adhering to the wall, so that the material 200 at the bottom of the silo 11 is not compacted, and the fluidity of the material 200 is improved, thereby effectively solving the problem that the material 200 can smoothly enter the screw 21 from the silo 11. The first filter element 42, the filter assembly 44, the vacuum pump 41, the first back-blowing valve 43 and the second back-blowing valve 445 form a circulation system. The vacuum pump 41 sucks the material 200 at the screw 21 to prevent the material 200 from being loose, thereby solving the problem that the material 200 enters the screw 21 uniformly per unit time, so that the material 200 will not be uncontrollably discharged from the gap of the screw 21. The material 200 is collected and the second filter element 442 in the filter assembly 44 is cleaned through the timed back-blowing function of the filter assembly 44, and the material 200 is returned to the silo 11 to reduce the loss of the material 200. In addition, the back-blowing function of the first filter element 42 is used to back-blow the first filter element 42 regularly to ensure the permeability of the filter screen and reduce the looseness and falling of the material 200 due to the blockage of the filter screen.

[0093] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0094] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A feeding device, characterized in that: The feeding device comprises: A feeding body (10) comprises a silo (11) and a discharge channel (12) connected to the silo (11); A feeding mechanism (20) is at least partially disposed in the discharge channel (12); The feeding device further comprises a material loosening mechanism (30) and a compacting mechanism (40), wherein the material loosening mechanism (30) is used to vibrate and / or stir the material (200) in the silo (11), and the compacting mechanism (40) is used to compact the material (200) in the discharge channel (12).

2. The feeding device according to claim 1, characterized in that: The compacting mechanism (40) comprises a vacuum pump (41) and a first filter element (42); the first filter element (42) is located in the discharge channel (12) and is arranged around the outer periphery of the feeding mechanism (20); the vacuum pump (41) is used to adsorb the material (200) in the discharge channel (12) onto the first filter element (42).

3. The feeding device according to claim 2, characterized in that: The compacting mechanism (40) further comprises a first back-blow valve (43), wherein the first back-blow valve (43) is connected to the discharge channel (12) and is used to control gas to blow off the material (200) adhered to the first filter element (42).

4. The feeding device according to claim 2, characterized in that: The compacting mechanism (40) further comprises a filter assembly (44), and the vacuum pump (41) is connected to the discharge channel (12) via the filter assembly (44).

5. The feeding device according to claim 4, characterized in that: The filter assembly (44) comprises an outer shell (441) and a second filter element (442) disposed in the outer shell (441); the second filter element (442) divides the inner shell (441) into a first chamber (44a) and a second chamber (44b); the first chamber (44a) is connected to the vacuum pump (41), and the second chamber (44b) is connected to the discharge channel (12).

6. The feeding device according to claim 5, characterized in that: The filter assembly (44) further comprises a first control valve (443), the second chamber (44b) is connected to the silo (11), and the first control valve (443) is used to control the connection or disconnection between the second chamber (44b) and the silo (11).

7. The feeding device according to claim 5, characterized in that: The filter assembly (44) further comprises a second back-blow valve (445), wherein the second back-blow valve (445) is in communication with the first chamber (44a), and the second back-blow valve (445) is used to control the gas to be blown toward the second filter element (442).

8. The feeding device according to any one of claims 1 to 7, characterized in that: The material loosening mechanism (30) further comprises an impactor (31), wherein the impactor (31) is located outside the material bin (11) and in contact with the material bin (11), and the impactor (31) is used to be connected to an external power source; and / or, The material loosening mechanism (30) further comprises a vibration motor (32), and a vibration end (321) of the vibration motor (32) is in contact with the material bin (11).

9. The feeding device according to any one of claims 1 to 7, characterized in that: The material loosening mechanism (30) further comprises a stirring member (33), wherein the stirring member (33) is located in the material bin (11) and is capable of rotating around its own axis.

10. The feeding device according to claim 9, characterized in that: The feeding mechanism (20) comprises a driver (22) and a screw (21) driven to rotate by the driver (22); the screw (21) is located in the discharge channel (12); and the stirring element (33) is drivingly connected to the driver (22).

11. The feeding device according to any one of claims 1 to 7, characterized in that: The feeding device further comprises a weighing device (60), wherein the weighing device (60) is located at the discharge end of the discharge channel (12) and is used for receiving the material (200) output from the discharge channel (12).

12. The feeding device according to any one of claims 1 to 7, characterized in that: The feeding device further comprises a breathable member (50), wherein the breathable member (50) is in communication with the silo (11) and is used for communicating with the outside world.

13. A battery production system, characterized in that: The battery production system comprises the feeding device according to any one of claims 1-12.

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