Powder conveying device and battery production system

Abstract

The utility model relates to a powder conveying device and a battery production system.The powder conveying device comprises a feeding mechanism, a discharging mechanism and a blocking mechanism, the feeding mechanism is provided with a discharging port, and the discharging mechanism is used for receiving powder output from the discharging port; the blocking mechanism is movably arranged on the feeding mechanism so as to open or block the discharging opening. Wherein the plugging mechanism comprises a driving piece and a plugging piece, and the plugging piece and the driving piece are of an integrated structure; the driving piece is used for driving the blocking piece to move so as to open or block the discharging opening. The battery production system comprises the powder conveying device. According to the powder conveying device and the battery production system, due to the fact that the plugging piece and the driving piece are of the integrated structure, the connection stability between the plugging piece and the driving piece can be improved, the risk that the plugging piece and the driving piece loosen or fall into a ton bag is reduced, and the powder feeding quality can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, in particular to a powder conveying device and a battery production system. Background Art

[0002] At present, lithium-ion batteries are widely used in electric vehicles, consumer electronics and other fields due to their advantages such as high energy density and long service life.

[0003] In battery production, powder materials (such as electrode materials) need to be discharged through a powder conveyor and loaded into ton bags to facilitate storage and use in subsequent processing steps. Powder conveying typically involves transferring the powder from a feeding mechanism to a discharge mechanism, where it is discharged into the ton bag. Feeding stops when the ton bag reaches a set weight. Due to the loose connection between the feeding and discharge mechanisms, there is a high risk of components loosening or falling into the ton bag, impacting the quality of the powder supply. Utility Model Content

[0004] Based on this, it is necessary to provide a powder conveying device and a battery production system to address the high risk of parts of existing powder conveying devices becoming loose or falling into ton bags.

[0005] A powder conveying device includes a feeding mechanism, a discharge mechanism and a blocking mechanism. The feeding mechanism has a discharge port, and the discharge mechanism is used to receive the powder output from the discharge port. The blocking mechanism can be movably arranged on the feeding mechanism to open or block the discharge port. The blocking mechanism includes a driving member and a blocking member, and the blocking member and the driving member are an integrated structure. The driving member is used to drive the blocking member to move to open or block the discharge port. The above-mentioned powder conveying device opens the discharge port when feeding is needed, and uses the feeding mechanism to convey the powder. After the discharge mechanism receives the powder output from the discharge port, the powder is discharged into a ton bag. When the weight of the ton bag reaches a set weight, the feeding is stopped. The blocking member is driven by the driving member to move, and the discharge port can be blocked in time when the feeding is stopped. Since the blocking member and the driving member are an integrated structure, the connection stability between the blocking member and the driving member can be improved, and the risk of the blocking member and the driving member loosening or falling into the ton bag can be reduced, which is conducive to improving the feeding quality of the powder.

[0006] In some embodiments, the driving member includes a driving portion and a movable rod, one end of the movable rod being connected to the driving portion, and a blocking member being integrally formed at the end of the movable rod remote from the driving portion. The driving portion is configured to drive the movable rod to move, thereby driving the blocking member to move, thereby opening or blocking the discharge port. In this manner, the driving portion can drive the movable rod to move, thereby driving the blocking member to move, thereby switching the discharge port between an open and a blocked state, providing convenient operation.

[0007] In some embodiments, the central axis of the movable rod overlaps with the central axis of the blocking member. In this way, the movable rod and the blocking member are coaxially arranged, and when the movable rod drives the blocking member to move, the movement of the blocking member is more stable.

[0008] In some embodiments, the blocking member includes a connecting portion and a plugging portion, the plugging portion being configured to abut the discharge port. The connecting portion is integrally formed with the end of the movable rod distal from the drive portion. This allows the blocking member to be integrally formed with the drive portion, allowing the plugging portion to smoothly open or close the discharge port, resulting in a simple and reasonable structural design.

[0009] In some embodiments, the plugging portion is disposed around the outer periphery of the connecting portion and is an integral structure with the connecting portion. In this way, the plugging member can be an integral structure with a compact structure, a good overall shape and high structural strength.

[0010] In some embodiments, the plugging portion includes a main body and a flange arranged around the outer periphery of the main body, the flange being configured to abut against the discharge port. In this way, the plugging portion can be integrally formed with the driving member, and the plugging portion can smoothly open or close the discharge port.

[0011] In some embodiments, the inner diameter of the flange is greater than or equal to the outer diameter of the discharge port. In this way, when the discharge port is in a blocked state, the plugging portion can effectively block the discharge port.

[0012] In some embodiments, the flange has a limiting groove on one side facing the discharge port, so that when the discharge port is in a blocked state, the plugging portion can limit the edge of the discharge port.

[0013] In some embodiments, the discharge mechanism includes a discharge barrel, and the feeding mechanism includes a first barrel and a second barrel extending in a first direction. The first barrel and the second barrel are disposed on opposite sides of the discharge barrel in the first direction, and the discharge port is disposed at one end of the second barrel facing the first barrel. In this manner, the powder in the second barrel can be smoothly discharged into the discharge barrel and then discharged into the ton bag through the discharge barrel.

[0014] In some embodiments, the driving unit is mounted on the first barrel; under the drive of the driving unit, the movable rod can be moved in a first direction through the first barrel, the discharge barrel, and the second barrel. In this way, the driving unit can be mounted on the first barrel without hindering the driving unit from driving the movable rod to move, thereby smoothly driving the blocking member connected to the movable rod to move.

[0015] In some embodiments, the driving portion has a first coupling portion, the first barrel has a second coupling portion, and the second coupling portion is detachably connected to the first coupling portion. In this way, the driving portion and the first barrel are detachably connected, making it easy to open the first barrel for maintenance or replacement of the blocking member.

[0016] In some embodiments, the first connecting portion is a flange structure arranged around the outer periphery of the driving portion. This can improve the space utilization of the driving portion and simultaneously enable the driving portion to be detachably connected to the first cylinder without hindering the transportation of the powder.

[0017] In some embodiments, the second connecting portion is a flange structure arranged around the outer periphery of the first cylinder. In this way, the space utilization of the driving portion can be improved, and the driving portion and the first cylinder can be smoothly and detachably connected without hindering the transportation of the powder.

[0018] A battery production system includes the aforementioned powder conveying device. In this battery production system, the blocking member and driving member of the powder conveying device are integrated into a single structure, which improves the connection stability between the blocking member and the driving member, reduces the risk of the blocking member and the driving member loosening or falling into the ton bag, and improves the feeding quality of the powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of a powder conveying device in some embodiments of the present application.

[0020] Figure 2 for Figure 1 The diagram shows the combination of the feeding mechanism and the unloading mechanism in the powder conveying device.

[0021] Figure 3 for Figure 2 A partial schematic diagram of the powder conveying device shown.

[0022] Figure 4 for Figure 2 Schematic diagram of the blocking piece of the powder conveying device shown.

[0023] Figure 5 for Figure 2 The partial schematic diagram of the powder conveying device at point B is shown.

[0024] Figure 6 This is a schematic diagram of a battery production system in some embodiments of the present application.

[0025] Reference numerals:

[0026] 100. Feeding mechanism; 110. First cylinder; 111. Second matching part; 120. Second cylinder; 200. Unloading mechanism; 210. Unloading barrel; 300. Sealing mechanism; 310. Driving member; 311. Driving part; 312. Movable rod; 313. First matching part; 320. Sealing member; 321. Connecting part; 322. Blocking part; 322a. Main body; 322b. Flange; 322c. Limiting groove; 10. Powder conveying device; 20. Heat sealing device; 30. Output device; 40. Feeding device. DETAILED DESCRIPTION

[0027] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0029] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0030] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0032] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0033] In the description of the embodiments of the present application, the technical 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., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do 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 embodiments of the present application.

[0034] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0035] At present, lithium-ion batteries are widely used in electric vehicles, consumer electronics and other fields due to their advantages such as high energy density and long service life.

[0036] In battery production, powder materials (such as electrode materials) need to be discharged through a powder conveyor and loaded into ton bags to facilitate storage and use in subsequent processing steps. Powder conveying typically involves transferring the powder from a feeding mechanism to a discharge mechanism, where it is discharged into the ton bag. Feeding stops when the ton bag reaches a set weight. Due to the loose connection between the feeding and discharge mechanisms, there is a high risk of components loosening or falling into the ton bag, impacting the quality of the powder supply.

[0037] Based on the above considerations, a powder conveying device and a battery production system are designed. In the powder conveying device, the discharge port is opened when feeding is needed, and the powder is conveyed by the feeding mechanism. After the discharge mechanism receives the powder output from the discharge port, the powder is discharged into the ton bag. The feeding is stopped after the weight of the ton bag reaches the set weight. The blocking part is driven to move by the driving part, so that the discharge port can be blocked in time when the feeding is stopped. Since the blocking part and the driving part are an integrated structure, the connection stability between the blocking part and the driving part can be improved, and the risk of the blocking part and the driving part loosening or falling into the ton bag is reduced, which is conducive to improving the feeding quality of the powder.

[0038] Please refer to Figure 1 and Figure 2In one embodiment, a powder conveying device 10 includes a feeding mechanism 100, a discharging mechanism 200, and a sealing mechanism 300. The feeding mechanism 100 has a discharge port, and the discharging mechanism 200 is used to receive powder discharged from the discharge port. The sealing mechanism 300 is movably mounted on the feeding mechanism 100 to open or close the discharge port. The sealing mechanism 300 includes a driving member 310 and a sealing member 320. The sealing member 320 and the driving member 310 are integrally formed. The driving member 310 is used to drive the sealing member 320 to move, thereby opening or closing the discharge port.

[0039] It should be noted that when the driver 310 is in operation, it can move the blocking member 320, moving it toward or away from the discharge port to open or close it. For example, when feeding is required, the blocking member 320 separates from the discharge port to allow normal discharge. When feeding is not required, the blocking member 320 abuts against the discharge port, blocking the discharge port and preventing discharge. Optionally, the powdered material is a negative electrode material for a battery.

[0040] In the embodiment of the present application, the feeding mechanism 100 is configured as a component for feeding and outputting powder. The feeding mechanism 100 can have various structural forms. For example, the feeding mechanism 100 includes a feeding barrel, a conveying screw, and a screw drive 310. The feeding barrel has an inlet and an outlet. The conveying screw is rotatably disposed within the feeding barrel. The screw drive 310 is drivingly connected to the conveying screw and drives the conveying screw to rotate. The conveying screw is used to spirally convey the powder in the feeding barrel to the outlet.

[0041] In the embodiment of the present application, the discharge mechanism 200 is configured as a component for receiving the powder outputted from the discharge port. The discharge mechanism 200 includes a discharge barrel 210, which is in communication with the discharge port so as to receive the powder outputted from the discharge port.

[0042] In the embodiment of the present application, the blocking mechanism 300 is configured as a component for opening or blocking the discharge port. The blocking mechanism 300 includes a driving member 310 and a blocking member 320 in an integrated structure. The integrated structure means that the driving member 310 and the blocking member 320 form a single unit. For example, the driving member 310 and the blocking member 320 can be integrally formed in various ways, such as by casting, injection molding, etc.

[0043] In the embodiment of the present application, the driving member 310 is a component used to drive the blocking member 320 to move. For example, the driving member 310 may be a cylinder whose telescopic rod is integrally formed with the blocking member 320. Alternatively, the driving member 310 may be another type of driving structure having an output shaft. The number of driving members 310 is not limited to one, and the number and type of driving members 310 are not limited herein.

[0044] In the embodiment of the present application, the blocking member 320 is a component used to open or block the discharge port. The blocking member 320 can be in various structural forms, such as circular, elliptical or other shapes, as long as it can be adapted to the discharge port.

[0045] The above-mentioned powder conveying device 10 opens the discharge port when feeding is needed, uses the feeding mechanism 100 to convey the powder, and after the discharge mechanism 200 receives the powder output from the discharge port, the powder is discharged into the ton bag. The feeding is stopped after the weight of the ton bag reaches the set weight, and the blocking member 320 is driven to move by the driving member 310, so that the discharge port can be blocked in time when the feeding is stopped; since the blocking member 320 and the driving member 310 are an integrated structure, the connection stability between the blocking member 320 and the driving member 310 can be improved, and the risk of the blocking member 320 and the driving member 310 loosening or falling into the ton bag is reduced, which is conducive to improving the feeding quality of the powder.

[0046] According to some embodiments of this application, please refer to Figure 2 The driving member 310 includes a driving portion 311 and a movable rod 312, one end of the movable rod 312 is connected to the driving portion 311, and the blocking member 320 is integrally formed at the end of the movable rod 312 away from the driving portion 311; the driving portion 311 is used to drive the movable rod 312 to move and drive the blocking member 320 to move to open or block the discharge port.

[0047] It is understood that when the movable rod 312 is in the first position, the discharge port is in an open state; when the movable rod 312 is in the second position, the discharge port is in a blocked state. The driving part 311 provides a power source so that the movable rod 312 can switch between the first position and the second position.

[0048] In an embodiment of the present application, the driving part 311 and the movable rod 312 are components of the driving member 310. For example, when the driving member 310 is a cylinder, the driving part 311 is the cylinder body of the cylinder, and the movable rod 312 is the telescopic rod of the cylinder, and the telescopic rod is driven back and forth by the cylinder body.

[0049] In the embodiment of the present application, the movable rod 312 is a columnar structure, such as a cylindrical, prismatic or other columnar structure. The number of the movable rod 312 is not limited to one, and the shape and number of the movable rod 312 are not limited here.

[0050] Through the above arrangement, the driving portion 311 can drive the movable rod 312 to move, and drive the blocking member 320 to move, so that the discharge port can be switched between an open or blocked state, and the operation is convenient.

[0051] According to some embodiments of this application, please refer to Figure 2 , the central axis of the movable rod 312 overlaps with the central axis of the blocking member 320.

[0052] In the embodiment of the present application, the central axis of the movable rod 312 and the central axis of the blocking member 320 are both along Figure 2 The X direction is shown extending.

[0053] Through the above arrangement, the movable rod 312 and the blocking member 320 are coaxially arranged. When the movable rod 312 drives the blocking member 320 to move, the movement of the blocking member 320 is more stable.

[0054] According to some embodiments of this application, please refer to Figure 2 The blocking member 320 includes a connecting portion 321 and a blocking portion 322 . The blocking portion 322 is used to abut against the discharge port. The connecting portion 321 is integrally formed at one end of the movable rod 312 away from the driving portion 311 .

[0055] In the embodiment of the present application, the connecting portion 321 is a component integrally formed with the end of the movable rod 312 away from the driving portion 311. The connecting portion 321 and the movable rod 312 can be integrally formed in various ways, such as by casting, injection molding, etc. The connecting portion 321 can be a component with various structural forms, for example, the connecting portion 321 can be hexagonal, circular, square, or other shapes. Optionally, the connecting portion 321 is a nut.

[0056] In the embodiment of the present application, the plugging portion 322 is a component for contacting the discharge port. The connecting portion 321 can be a component of various structural forms, for example, the plugging portion 322 can be a sheet or block structure of hexagonal, circular, square or other shapes.

[0057] Through the above arrangement, the blocking member 320 can be integrally formed with the driving member 310 , and the blocking portion 322 can smoothly open or block the discharge port, and the structural design is simple and reasonable.

[0058] According to some embodiments of this application, please refer to Figure 3 and Figure 4 The plugging portion 322 is disposed around the outer periphery of the connecting portion 321 and is an integral structure with the connecting portion 321 .

[0059] In the embodiment of the present application, the plugging portion 322 is disposed around the outer periphery of the connecting portion 321. The plugging portion 322 and the connecting portion 321 can be coaxially disposed to facilitate the stability of the connection structure. For example, the plugging portion 322 may be a hollow ring structure having a hollow portion, and the connecting portion 321 is located exactly at the position of the hollow portion.

[0060] In the embodiment of the present application, the plugging portion 322 and the connecting portion 321 can be integrally formed in a variety of ways, such as casting, injection molding, etc.

[0061] Through the above arrangement, the blocking member 320 can be an integrated structure with a compact structure, a good overall shape and high structural strength.

[0062] According to some embodiments of this application, please refer to Figure 3 The plugging portion 322 includes a main body 322a and a flange 322b arranged around the outer periphery of the main body 322a, and the flange 322b is used to abut against the discharge port.

[0063] It can be understood that the main body 322a is arranged around the outer periphery of the connecting part 321, and the flange 322b is arranged around the outer periphery of the main body 322a. When the discharge port is in a blocked state, the flange 322b is in contact with the discharge port; when the discharge port is in an open state, the flange 322b is separated from the discharge port.

[0064] In the embodiment of the present application, the flange 322b is arranged around the outer periphery of the main body 322a, and the flange 322b protrudes from the main body 322a toward the side where the discharge port is located. The main body 322a can be a circular sheet, and the flange 322b can be a circular ring, or the main body 322a and the flange 322b can also be other shapes.

[0065] Through the above arrangement, the blocking member 320 can be integrally formed with the driving member 310 , and the blocking portion 322 can smoothly open or block the discharge port.

[0066] According to some embodiments of this application, please refer to Figure 3 , the inner diameter of the flange 322b is greater than or equal to the outer diameter of the discharge port.

[0067] It should be noted that the inner diameter of the flange 322b is D1, and the outer diameter of the discharge port is D2.

[0068] Through the above arrangement, when the discharge port is in a blocked state, the blocking portion 322 can effectively block the discharge port.

[0069] According to some embodiments of this application, please refer to Figure 3 The flange 322b has a limiting groove 322c on one side facing the discharge port.

[0070] In the embodiment of the present application, the limiting groove 322c is a stepped groove arranged around the inner circumference of the flange 322b. When the discharge port is in a blocked state, the edge of the discharge port can be accommodated and limited in the limiting groove 322c.

[0071] Through the above arrangement, when the discharge port is in a blocked state, the blocking portion 322 can limit the edge of the discharge port.

[0072] According to some embodiments of this application, please refer to Figure 2The unloading mechanism 200 includes a unloading barrel 210, and the feeding mechanism 100 includes a first barrel 110 and a second barrel 120 extending along the first direction. The first barrel 110 and the second barrel 120 are arranged on opposite sides of the unloading barrel 210 in the first direction, and the discharge port is arranged at one end of the second barrel 120 facing the first barrel 110.

[0073] It should be noted that the first direction is Figure 2 The first barrel 110 and the second barrel 120 are disposed on opposite sides of the lower barrel 210 in the first direction. The discharge port is disposed at one end of the second barrel 120 facing the first barrel 110. The conveying screw is rotatably disposed in the second barrel 120 and is used to spirally convey the powder in the second barrel 120 to the discharge port.

[0074] In the embodiment of the present application, the first barrel 110 and the second barrel 120 can be fixed to opposite sides of the blank by various connection methods, such as welding, riveting, etc., and the connection method of the first barrel 110 and the second barrel 120 is not limited. The first barrel 110 and the second barrel 120 can both be cylindrical or other columnar structures, and the inner diameters of the first barrel 110 and the second barrel 120 can be the same or different.

[0075] In the embodiment of the present application, the lower barrel 210 may be cylindrical or in other forms of columnar structures, and the inner diameters of the lower barrel 210 and the first barrel 110 and the second barrel 120 may be the same or different.

[0076] Through the above arrangement, the powder in the second cylinder 120 can be smoothly discharged into the discharge barrel 210 and then discharged into the ton bag through the discharge barrel 210.

[0077] According to some embodiments of this application, please refer to Figure 2 , the driving portion 311 is installed on the first cylinder 110; driven by the driving portion 311, the movable rod 312 can be movably arranged along the first direction through the first cylinder 110, the lower cylinder 210 and the second cylinder 120.

[0078] It can be understood that, driven by the driving part 311, the movable rod 312 can be movably arranged along the first direction through the first cylinder 110, the lower cylinder 210 and the second cylinder 120, so that the movable rod 312 drives the blocking part 322 away from or close to the discharge port, thereby opening or blocking the discharge port.

[0079] In the embodiment of the present application, the driving portion 311 and the first cylinder 110 may be installed in various forms. For example, the two may be connected in a detachable manner to facilitate opening the first cylinder 110 to maintain or replace the blocking member 320 .

[0080] Through the above arrangement, the driving portion 311 can be installed on the first cylinder 110 without hindering the driving portion 311 from driving the movable rod 312 to move and smoothly driving the blocking member 320 connected to the movable rod 312 to move.

[0081] According to some embodiments of this application, please refer to Figure 2 and Figure 5 The driving portion 311 has a first matching portion 313 , and the first barrel 110 has a second matching portion 111 . The second matching portion 111 is detachably connected to the first matching portion 313 .

[0082] In the embodiment of the present application, the first connecting portion 313 and the second connecting portion 111 can be detachably connected by various means such as snap-fitting, screwing, or plugging. The number of the first connecting portion 313 and the second connecting portion 111 is not limited to one. The first connecting portion 313 and the second connecting portion 111 can have various structural forms. The number and shape of the first connecting portion 313 and the second connecting portion 111 are not limited herein.

[0083] Through the above arrangement, the driving portion 311 is detachably connected to the first cylinder 110 , which facilitates opening the first cylinder 110 to maintain or replace the blocking member 320 .

[0084] According to some embodiments of this application, please refer to Figure 2 and Figure 5 The first matching portion 313 is a flange structure arranged around the outer periphery of the driving portion 311.

[0085] In the embodiment of the present application, the first connecting portion 313 and the driving portion 311 are integrally formed, for example, by injection molding or casting, with good integrity and high structural strength. Optionally, the first connecting portion 313 is a flange having a fixing hole provided on the flange for fixed connection with the second connecting portion 111.

[0086] Through the above arrangement, the space utilization of the driving portion 311 can be improved, and at the same time, the driving portion 311 and the first cylinder 110 can be smoothly detachably connected without hindering the transportation of the powder.

[0087] According to some embodiments of this application, please refer to Figure 2 and Figure 5 The second matching portion 111 is a flange structure arranged around the outer periphery of the first cylinder 110 .

[0088] In the embodiment of the present application, the second connecting portion 111 and the first barrel 110 are integrally formed, for example, by injection molding or casting, with good integrity and high structural strength. Optionally, the second connecting portion 111 is a flange having a fixing hole fixedly connected to the first connecting portion 313.

[0089] Through the above arrangement, the space utilization of the driving portion 311 can be improved, and at the same time, the driving portion 311 and the first cylinder 110 can be smoothly detachably connected without hindering the transportation of the powder.

[0090] Please refer to Figure 6 In one embodiment, a battery production system includes the above-mentioned powder conveying device 10.

[0091] It should be noted that, in addition to the above-mentioned powder conveying device 10, the above-mentioned battery production system also includes other components such as a heat sealing device 20, an output device 30, and a feeding device 40. The feeding device 40 is arranged upstream of the powder conveying device 10 and is used to feed the powder conveying device 10. The heat sealing device 20 is arranged downstream of the powder conveying device 10 and is used to seal the ton bag. The output device 30 is used to convey the sealed ton bag.

[0092] In the above-mentioned battery production system, the blocking member 320 and the driving member 310 of the powder conveying device 10 are an integrated structure, which can improve the connection stability between the blocking member 320 and the driving member 310, reduce the risk of the blocking member 320 and the driving member 310 loosening or falling into the ton bag, and help improve the feeding quality of the powder.

[0093] According to some embodiments of the present application, see Figures 1 to 5 In one embodiment, the powder conveying device 10 includes a feeding mechanism 100, a discharge mechanism 200 and a blocking mechanism 300. The feeding mechanism 100 has a discharge port, and the discharge mechanism 200 is connected to the feeding mechanism 100 and is used to receive the powder output from the discharge port; the blocking mechanism 300 includes a driving member 310 and a blocking member 320. The driving member 310 includes a driving part 311 and a movable rod 312. One end of the movable rod 312 is connected to the driving part 311. The blocking member 320 is integrally formed at the end of the movable rod 312 away from the driving part 311. The central axis of the movable rod 312 overlaps with the central axis of the blocking member 320. The sealing member 320 includes a connecting portion 321 and a blocking portion 322 arranged around the outer periphery of the connecting portion 321. The connecting portion 321 is integrally formed at the end of the movable rod 312 away from the driving portion 311. The blocking portion 322 and the connecting portion 321 are an integrated structure. The blocking portion 322 includes a main body 322a and a flange 322b arranged around the outer periphery of the main body 322a. The inner diameter of the flange 322b is greater than or equal to the outer diameter of the discharge port, and the flange 322b has a limiting groove 322c on the side facing the discharge port.

[0094] Among them, the unloading mechanism 200 includes a unloading barrel 210, and the feeding mechanism 100 includes a first barrel 110 and a second barrel 120 extending along the first direction. The first barrel 110 and the second barrel 120 are arranged on opposite sides of the unloading barrel 210 in the first direction, and the discharge port is arranged at one end of the second barrel 120 facing the first barrel 110. The driving part 311 has a first matching part 313, and the first barrel 110 has a second matching part 111. The second matching part 111 and the first matching part 313 are detachably connected.

[0095] According to some embodiments of the present application, see Figure 6 In one embodiment, a battery production system includes the above-mentioned powder conveying device 10.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A powder conveying device (10), characterized in that: include: A feeding mechanism (100) having a discharge port; A discharge mechanism (200) for receiving the powder material discharged from the discharge port; A blocking mechanism (300) is movably provided on the feeding mechanism (100) to open or block the discharge port; The blocking mechanism (300) comprises a driving member (310) and a blocking member (320), wherein the blocking member (320) and the driving member (310) are an integrated structure; the driving member (310) is used to drive the blocking member (320) to move so as to open or block the discharge port.

2. The powder conveying device (10) according to claim 1, characterized in that: The driving member (310) comprises a driving portion (311) and a movable rod (312), one end of the movable rod (312) is connected to the driving portion (311), and the blocking member (320) is integrally formed at one end of the movable rod (312) away from the driving portion (311); The driving portion (311) is used to drive the movable rod (312) to move, and drive the blocking member (320) to move, so as to open or block the discharge port.

3. The powder conveying device (10) according to claim 2, characterized in that: The central axis of the movable rod (312) overlaps with the central axis of the blocking member (320).

4. The powder conveying device (10) according to claim 2, characterized in that: The blocking member (320) comprises a connecting portion (321) and a blocking portion (322) connected to each other. The blocking portion (322) is used to abut against the discharge port. The connecting portion (321) is integrally formed at one end of the movable rod (312) away from the driving portion (311).

5. The powder conveying device (10) according to claim 4, characterized in that: The plugging portion (322) is arranged around the outer periphery of the connecting portion (321) and forms an integral structure with the connecting portion (321).

6. The powder conveying device (10) according to claim 4, characterized in that: The plugging portion (322) comprises a main body (322a) and a flange (322b) arranged around the outer periphery of the main body (322a), wherein the flange (322b) is used to abut against the discharge port.

7. The powder conveying device (10) according to claim 6, characterized in that: The inner diameter of the flange (322b) is greater than or equal to the outer diameter of the discharge port.

8. The powder conveying device (10) according to claim 6, characterized in that: The flange (322b) has a limiting groove (322c) on one side facing the discharge port.

9. The powder conveying device (10) according to claim 2, characterized in that: The unloading mechanism (200) includes a unloading barrel (210), and the feeding mechanism (100) includes a first barrel (110) and a second barrel (120) extending along a first direction. The first barrel (110) and the second barrel (120) are arranged on opposite sides of the unloading barrel (210) in the first direction, and the discharge port is arranged at one end of the second barrel (120) facing the first barrel (110).

10. The powder conveying device (10) according to claim 9, characterized in that: The driving portion (311) is mounted on the first cylinder (110); driven by the driving portion (311), the movable rod (312) can be movably arranged along the first direction through the first cylinder (110), the discharge cylinder (210) and the second cylinder (120).

11. The powder conveying device (10) according to claim 10, characterized in that: The driving portion (311) has a first matching portion (313), the first cylinder (110) has a second matching portion (111), and the second matching portion (111) is detachably connected to the first matching portion (313).

12. The powder material conveying device (10) according to claim 11, characterized in that: The first matching portion (313) is a flange structure arranged around the outer periphery of the driving portion (311).

13. The powder conveying device (10) according to claim 11, characterized in that: The second matching portion (111) is a flange structure arranged around the outer circumference of the first cylinder (110).

14. A battery production system, characterized in that: It comprises a powder conveying device (10) as described in any one of claims 1 to 13.

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