Charging device and charging system

Abstract

The utility model relates to a charging device and a charging system, and belongs to the technical field of chemical equipment. The charging device comprises a shell provided with a material storage cavity, a feeding opening is formed in the top of the shell, a discharging opening is formed in the bottom of the shell, and a through hole is formed in the side wall of the shell; the driving mechanism is arranged outside the shell; the material cutting plate is connected with the driving mechanism and is arranged to extend into the material storage cavity through the through hole under the driving action of the driving mechanism so as to divide the material storage cavity into two cavities; and the padding plate is connected with the driving mechanism and can move under the driving action of the driving mechanism so as to block or open the discharging opening. According to the charging device, accurate and automatic material conveying can be achieved according to the fixed shape, size and weight, the situation that the materials are broken and broken due to collision or compression or friction and the like can be effectively avoided, and meanwhile the phenomenon of adhesion or material blocking caused by conventional discharging can be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of chemical equipment, and in particular to a charging device and a charging system. Background Art

[0002] As industrial technology evolves, various manufacturing and chemical industries flourish, and the equipment and facilities supporting these industries are also being updated. Dosing devices are particularly important. The stability and uniformity of dosing directly impact key parameters in manufacturing and chemical synthesis, ultimately determining product quality.

[0003] The chemical industry has numerous wet-to-dry processes, often using ovens to dry materials. Prior to oven drying, materials must be placed onto trays of fixed shape and volume, with precise control of the weight of each tray. Manual feeding is costly and inefficient. Furthermore, for some specialized materials, such as cathode precursors with high moisture content and low strength, the material can easily adhere to the feeding device during feeding, slowing down the feed rate and potentially damaging the material.

[0004] Equipment in the chemical industry is not specially protected, and metal impurities such as iron, cobalt, and nickel are easily introduced during material processing due to rust spots or friction between the rough inner wall and the material.

[0005] The battery industry has high requirements for battery positive electrode materials and battery positive electrode material precursors. If metal impurities such as iron, cobalt, and nickel appear in the battery materials, they will cause self-discharge, reduce battery life, and even cause safety accidents; if the materials are broken or cracked, it will have a significant negative impact on the cycle performance of the batteries prepared using the above raw materials.

[0006] Therefore, it is necessary to avoid or reduce the rupture and breakage of materials during processing and transportation due to collision, pressure, friction, etc. as much as possible during the processing process; and to avoid or reduce material damage and the introduction of metal impurities. Utility Model Content

[0007] The present application provides a loading device and a loading system to solve the technical problems of the existing feeding method in which materials are broken or crushed due to collision, pressure, friction, etc., and new metal impurities are introduced; at the same time, it can also avoid the technical problems of adhesion or blockage caused by conventional feeding.

[0008] According to an embodiment of the present application, a loading device is provided, including: a shell, having a storage cavity, a feed port provided at the top of the shell, a discharge port provided at the bottom of the shell, and a through hole provided on the side wall of the shell; a driving mechanism, arranged outside the shell; a cutting plate, connected to the driving mechanism, and arranged to be able to extend into the storage cavity through the through hole under the driving action of the driving mechanism to partition the storage cavity into two chambers; and a padding plate, connected to the driving mechanism, and arranged to be able to move under the driving action of the driving mechanism to block or open the discharge port.

[0009] In a further optional embodiment, the bottom surface of the shell is recessed to form a first mounting groove, and / or the top surface of the gasket plate is recessed to form a second mounting groove; the loading device also includes a sealing airbag, which is arranged in the first mounting groove of the shell and fixedly connected to the shell or is arranged in the second mounting groove of the gasket plate and fixedly connected to the gasket plate, and the sealing airbag is configured to be able to inflate or deflate.

[0010] In a further optional embodiment, the shell includes a first side wall, a second side wall, a third side wall and a fourth side wall, and the first side wall, the second side wall, the third side wall and the fourth side wall are connected in sequence and form the storage cavity, and the through hole is arranged on the first side wall; the cutting plate is arranged to be able to extend into the storage cavity through the through hole under the driving action of the driving mechanism and contact the second side wall, the third side wall and the fourth side wall to separate the storage cavity; wherein, the end face of the cutting plate in contact with the second side wall, the third side wall and the fourth side wall is arranged to be an inclined surface inclined in the vertical direction and / or mirror-finished.

[0011] In a further optional embodiment, the loading device also includes a protective component, which is horizontally arranged on the inner side of the second side wall, the third side wall and the fourth side wall of the shell, and the protective component is used to contact and seal with the end face of the cutting plate to isolate the storage cavity.

[0012] In a further optional embodiment, the protective assembly includes a first layer of protective pad and a second layer of protective pad, and the first layer of protective pad and the second layer of protective pad are arranged in sequence along the direction from the feed port to the discharge port, and the first layer of protective pad protrudes from the second layer of protective pad in the horizontal direction, so that a step structure is formed between the first layer of protective pad and the second layer of protective pad to cooperate with the cutting plate.

[0013] In a further optional embodiment, the driving mechanism includes: a first driving assembly, including a first driving member and a first clip, the first driving member is connected to the cutting plate via the first clip, and is used to drive the cutting plate to move; and / or a second driving assembly, including a second driving member and a second clip, the second driving member is connected to the padding plate via the second clip, and is used to drive the padding plate to move.

[0014] In a further optional embodiment, the second drive assembly also includes a linear guide rail, which is connected to the padding plate; and / or the second drive assembly also includes an accordion cover, the two ends of which are respectively connected to the side wall of the shell and one end of the padding plate connected to the second buckle; and / or the loading device also includes a dust cover, which is arranged outside the shell and located at the bottom of the padding plate; and / or the loading device also includes a weight sensor, which is connected to the shell; and / or the loading device also includes a silo, which is arranged at the top of the storage cavity of the shell and connected to the feed port; and / or the loading device also includes a sealing structure, which is arranged in the through hole of the side wall of the shell to seal between the cutting plate and the through hole.

[0015] According to another embodiment of the present application, a charging system is provided, comprising: the charging device described in any of the above embodiments; and a feeding device connected to the feed port at the top of the shell, for feeding material to the charging device.

[0016] In a further optional embodiment, the feeding device includes a hopper, a feed pipe, a loading cone, a filter element, an air outlet duct, and a negative pressure fan. The hopper is connected to the interior of the loading cone through the feed pipe, the bottom outlet of the loading cone is connected to the feed port, the top outlet of the loading cone is connected to the negative pressure fan through the air outlet duct, and the filter element is arranged at the top outlet of the loading cone; and / or the loading system also includes a material receiving device, which is arranged at the bottom of the discharge port of the shell.

[0017] In a further optional embodiment, the loading system also includes a control unit, which is electrically connected to the negative pressure fan and the drive mechanism, so as to control the feeding speed through the negative pressure fan and control the loading through the drive mechanism; and / or the material receiving device includes a material tray and a control module, the material tray is used to receive materials, and the control module is used to control the movement of the material tray at the bottom of the discharge port.

[0018] The operation process of the charging device and the charging system provided in this application is as follows:

[0019] The loading system provided in the embodiment of the present application includes a loading device, which includes a housing, a driving mechanism, a cutting plate and a padding plate. The housing has a storage cavity and is provided with a feed port, a discharge port and a through hole. The cutting plate and the padding plate are both connected to the driving mechanism. When feeding, the driving mechanism first drives the padding plate to move and block the discharge port, and adds material to the storage cavity through the feed port; then the driving mechanism drives the cutting plate to enter the storage cavity through the through hole of the side wall of the housing and partition the storage cavity, so that a chamber with a fixed shape and volume is formed between the cutting plate and the padding plate, and the chamber can accommodate a fixed weight of material; then the padding plate is driven to open the discharge port, and the material in the above-mentioned partitioned chamber will be discharged from the discharge port to the material tray below the discharge port by gravity; finally, the loading system removes the loaded tray and places an unloaded tray below the discharge port.

[0020] The charging device and charging system provided in this application have at least the following beneficial effects:

[0021] 1. The loading device of the embodiment of the present application can realize precise automatic conveying of materials according to fixed shape, volume and weight, with low cost and high efficiency. Moreover, the materials are discharged by their own gravity, without the need for a driving device to apply external force to the materials, thereby reducing the contact between the materials and the driving device, and effectively avoiding the problem of material adhesion.

[0022] 2. Avoid or reduce the breakage and crushing of materials caused by collision, pressure, friction, etc. during the processing and transportation process; polish the contact surface between the equipment and the material or protect it with non-metallic materials or use special materials to avoid or reduce material damage and the introduction of metal impurities, and improve the electrochemical performance of batteries prepared with processed materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate the specific embodiments of this application or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0024] Figure 1 A schematic diagram of the overall structure of the charging device provided in an embodiment of the present application;

[0025] Figure 2 A schematic cross-sectional view of a charging device according to an embodiment of the present application;

[0026] Figure 3 for Figure 2 Enlarged view of part A;

[0027] Figure 4 A schematic front view of a partial structure of a charging device provided in an embodiment of the present application;

[0028] Figure 5 A schematic side view of a partial structure of a charging device provided in an embodiment of the present application;

[0029] Figure 6 for Figure 4 An enlarged schematic diagram of part B;

[0030] Figure 7 A schematic diagram of the connection structure between the gasket plate and the sealed airbag provided in an embodiment of the present application;

[0031] Figure 8 for Figure 4 A magnified schematic diagram of part C;

[0032] Figure 9 A schematic diagram of the charging process of the charging device provided in an embodiment of the present application;

[0033] Figure 10 A schematic diagram of the overall structure of the charging system provided in an embodiment of the present application;

[0034] Figure 11 This is a comparison of the crushed balls after material transportation between Example 1 of the present application and Comparative Example 1;

[0035] Figure 12 This is a comparison of the metal particles after material transportation between Example 1 of the present application and Comparative Example 1;

[0036] Figure 13 Surface SEM photos (surface scanning electron microscope photos) of Example 1 and Comparative Example 1 of the present application before material transportation;

[0037] Figure 14 This is a surface SEM photo of the material after transportation in Example 1 of the present application;

[0038] Figure 15 This is a surface SEM photograph of the material after transportation in Comparative Example 1 of this application.

[0039] The reference numerals are as follows:

[0040] 10. Loading system;

[0041] 100. Charging device;

[0042] 110, housing; 111, storage chamber; 112, feed port; 113, discharge port; 114, first mounting slot; 115, first side wall; 115a, through hole; 116, second side wall; 117, third side wall; 118, fourth side wall; 119, base;

[0043] 120, driving mechanism; 121, first driving assembly; 121a, first driving member; 121b, first buckle; 122, second driving assembly; 122a, second driving member; 122b, second buckle; 122c, linear guide;

[0044] 130. Cutting plate; 131. Inclined surface;

[0045] 140. Padding plate; 141. Second mounting slot;

[0046] 150. Sealed airbag;

[0047] 160, protective assembly; 161, first layer of protective pad; 162, second layer of protective pad;

[0048] 171. Organ cover; 172. Dust cover;

[0049] 180. Weight sensor;

[0050] 190. Silo;

[0051] 200, feeding device; 210, accumulator; 220, feeding pipe; 230, feeding cone hopper; 240, filter element; 250, air outlet pipe; 260, negative pressure fan; 270, back-blowing air tank; 280, collector; 290, connecting hose;

[0052] 300. Material receiving device; 310. Material tray. DETAILED DESCRIPTION

[0053] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear to indicate the orientation or position relationship, unless otherwise specified, they are understood to be based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this 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 limiting this application.

[0054] Furthermore, the use of "first" or "second" in describing features is for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features identified. Features identified as "first" or "second" may explicitly or implicitly include at least one of the identified features. The use of the word "plurality" generally implies at least two, such as two or three, unless otherwise specifically defined.

[0055] In this application, unless otherwise specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integration; mechanical connections, electrical connections, direct connections, or indirect connections through an intermediary; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0056] In the description of this specification, if the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0057] Please refer to Figures 1 to 9 The charging device 100 provided in the embodiment of the present application includes a housing 110, a driving mechanism 120, a cutting plate 130, and a pad 140. The charging device 100 is used for conveying and charging materials. For example, the materials may be granular materials, powder materials, etc.

[0058] The housing 110 forms the outer contour of the charging device 100. The interior of the housing 110 has a storage chamber 111 for storing materials. A feed port 112 is provided at the top of the housing 110. The feed port 112 communicates with the storage chamber 111 and is used to connect to the feeding device 200 to allow materials to enter the storage chamber 111. A discharge port 113 is provided at the bottom of the housing 110. The discharge port 113 communicates with the storage chamber 111 and is used to allow materials to be discharged from the storage chamber 111. The side wall of the housing 110 is provided with a through hole 115a. The through hole 115a extends through the side wall of the housing 110 and connects the storage chamber 111 with the environment outside the housing 110.

[0059] The driving mechanism 120 is disposed outside the housing 110 and is used to provide power to drive the cutting plate 130 and the padding plate 140 to move relative to the housing 110. Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6The driving mechanism 120 can drive the cutting plate 130 and the padding plate 140 to move in the horizontal direction respectively, so that the cutting plate 130 and the padding plate 140 are close to the storage chamber 111 or away from the storage chamber 111.

[0060] The cutting plate 130 is connected to the driving mechanism 120 and is configured to extend into the storage cavity 111 through the through hole 115a under the driving action of the driving mechanism 120 to separate the storage cavity 111 into two chambers. Figure 1 、 Figure 2 and Figure 3 The drive mechanism 120 can drive the cutting plate 130 through the through hole 115a and into contact with the inner wall of the storage chamber 111, thereby forming a chamber between the upper surface of the cutting plate 130 and the feed port 112, and a chamber between the lower surface of the cutting plate 130 and the discharge port 113. Furthermore, the two chambers formed above and below the cutting plate 130 have a fixed shape and volume, ensuring that a fixed volume of material can be accommodated during different loading batches.

[0061] The pad 140 is connected to the driving mechanism 120 and is configured to move under the driving action of the driving mechanism 120 to block or open the discharge port 113. Figure 1 、 Figure 2 and Figure 3 The driving mechanism 120 can drive the padding plate 140 to move to the bottom surface of the shell 110, so that the padding plate 140 blocks the discharge port 113, thereby blocking the material in the storage cavity 111.

[0062] Reference Figure 9 , which shows a schematic diagram of the charging process of the charging device when the sealed airbag is located in the second mounting groove of the padding plate in an exemplary embodiment, to introduce the steps of the charging device 100 when feeding. Specifically, Figure 9 As shown in (1), when the charging device 100 of the embodiment of the present application is feeding, the driving mechanism 120 first drives the padding plate 140 to block the discharge port 113, and the driving mechanism 120 drives the cutting plate 130 to move horizontally to separate the storage cavity 111 into two cavities, and then adds materials to the storage cavity 111 through the feed port 112. Figure 9 (2) and Figure 9 As shown in (3), the driving mechanism 120 then drives the cutting plate 130 to separate from the storage chamber 111, so that the upper and lower cavities of the cutting plate 130 are connected. At this time, the material in the upper cavity of the cutting plate 130 will fall and fill the lower cavity. Figure 9 (4) and Figure 9 As shown in (5), the cutting plate 130 is then driven into the storage chamber 111 and partitions the storage chamber 111 into two chambers, an upper chamber and a lower chamber. Figure 9 (6) Figure 9 (7) and Figure 9 As shown in (8), the pad plate 140 is then driven to open the discharge port 113, and the material in the chamber below the cutting plate 130 will be discharged from the discharge port 113 by gravity. Figure 9 (9) and Figure 9 As shown in (10), the pad plate 140 is then driven to block the discharge port 113 for loading the next batch of materials.

[0063] It should be understood that the charging steps of this embodiment are only examples, and the use of the charging device 100 of the embodiment of the present application is not limited to Figure 9 The loading method shown.

[0064] Through the above-mentioned structural design, the driving mechanism 120 is used to drive the cutting plate 130 to enter the storage chamber 111 from the through hole 115a and isolate the storage chamber 111, so that a chamber with a fixed shape and volume is formed between the cutting plate 130 and the padding plate 140, and the chamber can accommodate a fixed volume of material; then the padding plate 140 is driven to open the discharge port 113, and the material in the above-mentioned chamber will be discharged from the discharge port 113 by gravity. Therefore, the loading device 100 of the embodiment of the present application can realize accurate automatic conveying of materials in a fixed shape and volume, with low cost and high efficiency, and the volume of each batch of materials is consistent and evenly distributed. In addition, the material is discharged by relying on its own gravity, and there is no need to use a driving device to apply external force to squeeze the material out, thereby reducing the contact, extrusion, and friction between the material and the driving device, without damaging the material, and effectively avoiding material adhesion or blockage.

[0065] As a further optional implementation scheme, based on the above scheme, the specific embodiments of the present application may also include one or more of the following additions or combinations.

[0066] To prevent the padding plate 140 from rubbing against the housing 110 when the bottom of the housing 110 moves, in this embodiment of the present application, the padding plate 140 may be configured to have a gap with the bottom surface of the housing 110. Accordingly, a seal is required between the bottom surface of the housing 110 and the top surface of the padding plate 140 to improve the sealing and pressure-maintaining capabilities of the storage chamber 111.

[0067] In some optional embodiments, the bottom surface of the housing 110 is recessed to form a first mounting groove 114. The charging device 100 further includes a sealing airbag 150, which is disposed in the first mounting groove 114 and fixedly connected to the housing 110. The sealing airbag 150 is configured to inflate when the padding plate 140 blocks the discharge port 113 to seal the space between the housing 110 and the padding plate 140.

[0068] like Figure 4 、 Figure 5 、 Figure 6 As shown, the bottom surface of the housing 110 is recessed upward to form a first mounting groove 114. The first mounting groove 114 is horizontally distributed in an annular shape on the bottom surface of all side walls of the housing 110 and is fixedly connected to the housing 110. A sealing airbag 150 is disposed in the first mounting groove 114 and is connected to an external air source. The air source can be used to blow air into or out of the sealing airbag 150 to expand or contract the volume of the sealing airbag 150. When the driving mechanism 120 drives the gasket plate 140 to move to the bottom of the housing 110 to block the discharge port 113, the sealing airbag 150 is expanded by blowing air into the interior of the sealing airbag 150. At this time, the sealing airbag 150 can be in close contact with the inner wall of the first mounting groove 114 and the upper surface of the gasket plate 140, thereby achieving a seal between the bottom surface of the housing 110 and the gasket plate 140, thereby preventing material leakage in the storage chamber 111.

[0069] In some optional embodiments, the top surface of the padding plate 140 is recessed to form a second mounting groove 141. The charging device 100 further includes a sealing airbag 150, which is disposed within the second mounting groove 141 of the padding plate 140 and is fixedly connected to the padding plate 140. The sealing airbag 150 is configured to inflate when the padding plate 140 blocks the discharge port 113 to seal the space between the housing 110 and the padding plate 140.

[0070] like Figure 7 As shown, the top surface of the gasket plate 140 is recessed downward to form a second mounting groove 141, and the second mounting groove 141 is horizontally distributed in a ring shape at the edge of the gasket plate 140. The sealing airbag 150 is arranged in the second mounting groove 141 and is connected to an external air source. The air source can be used to blow air into or out of the sealing airbag 150 to expand or contract the volume of the sealing airbag 150. When the driving mechanism 120 drives the gasket plate 140 to move to the bottom of the shell 110 to block the discharge port 113, the sealing airbag 150 is expanded by blowing air into the interior of the sealing airbag 150. At this time, the sealing airbag 150 can be in close contact with the inner wall of the second mounting groove 141 and the bottom surface of the shell 110, thereby achieving a seal between the bottom surface of the shell 110 and the gasket plate 140, thereby preventing the material in the storage chamber 111 from leaking.

[0071] Further, refer to Figure 9 ,in Figure 9 (1) to Figure 9 (5) The sealing airbag 150 is inflated (red area), and plays a sealing role at this time; Figure 9 (6) to Figure 9 (10) is the state where the sealing airbag 150 is deflated and contracted (blue area), and no sealing is required at this time.

[0072] It is understood that in other optional embodiments, the bottom surface of the housing 110 may be recessed to form the first mounting groove 114, while the top surface of the gasket plate 140 may be recessed to form the second mounting groove 141. Similar to the design of the above embodiment, by disposing the sealing airbag 150 in the first mounting groove 114 or the second mounting groove 141, the gap between the bottom surface of the housing 110 and the top surface of the gasket plate 140 can be effectively sealed.

[0073] In some optional embodiments, the shell 110 includes a first side wall 115, a second side wall 116, a third side wall 117 and a fourth side wall 118, and the first side wall 115, the second side wall 116, the third side wall 117 and the fourth side wall 118 are connected in sequence and form a storage chamber 111, and a through hole 115a is arranged on the first side wall 115; the cutting plate 130 is arranged to be able to extend into the storage chamber 111 through the through hole 115a under the driving action of the driving mechanism 120 and contact the second side wall 116, the third side wall 117 and the fourth side wall 118 to separate the storage chamber 111; wherein, the end face of the cutting plate 130 in contact with the second side wall 116, the third side wall 117 and the fourth side wall 118 is arranged on a vertically inclined inclined surface 131 and / or mirror-finished to avoid or reduce the rupture or breakage of the material due to collision, pressure, friction, etc.

[0074] Specifically, if Figures 1 to 5 As shown, the shell 110 is a square structure surrounded by a first side wall 115, a second side wall 116, a third side wall 117 and a fourth side wall 118. Correspondingly, the through hole 115a on the first side wall 115 is a long strip hole extending in the horizontal direction. The end face of the cutting plate 130 that contacts the second side wall 116, the third side wall 117 and the fourth side wall 118 is set as an inclined surface 131 inclined in the direction from the discharge port 113 to the feed port 112. This can reduce the wear of the cutting plate 130 on the material when it moves in the storage chamber 111, and can reduce or avoid material damage. In addition, by mirror-finishing the cutting plate 130, it can also prevent the material from adhering to the cutting plate 130.

[0075] It is understood that in other optional embodiments, such as Figure 9 As shown, the end surface of the cutting plate 130 in contact with the second side wall 116, the third side wall 117 and the fourth side wall 118 can be set as a slope 131 inclined along the direction of the feed port 112 toward the discharge port 113. At this time, the wear of the cutting plate 130 on the material when it moves in the storage chamber 111 can also be reduced.

[0076] In some optional embodiments, the loading device 100 further includes a protective assembly 160, which is connected to and protrudes from the inner sides of the second side wall 116, the third side wall 117, and the fourth side wall 118 of the shell 110, and the protective assembly 160 is used to contact the end face of the cutting plate 130. When the cutting plate 130 extends into the storage chamber 111 and contacts the protective assembly 160, the two cooperate to separate the storage chamber 111 into an upper and lower chamber. By providing the protective assembly 160, on the one hand, the direct collision or friction between the end face of the cutting plate 130 and the inner wall of the shell 110 can be reduced, so as to avoid or reduce the rupture or breakage of the material due to collision, pressure, friction, etc., and at the same time, it is also beneficial to improve the sealing between the end face of the cutting plate 130 and the inner wall of the shell 110 to avoid material leakage while taking into account maintaining negative pressure.

[0077] In some optional embodiments, the protective assembly 160 includes a first layer of protective pad 161 and a second layer of protective pad 162. The first layer of protective pad 161 and the second layer of protective pad 162 are arranged in sequence along the direction from the feed port 112 to the discharge port 113. The first layer of protective pad 161 protrudes from the second layer of protective pad 162 in the horizontal direction, so that a step structure is formed between the first layer of protective pad 161 and the second layer of protective pad 162 to cooperate with the cutting plate 130.

[0078] like Figure 4 and Figure 5 As shown, the first layer of protective pads 161 and the second layer of protective pads 162 are respectively arranged horizontally on the inner sides of the second side wall 116, the third side wall 117, and the fourth side wall 118, with the first layer of protective pads 161 located above the second layer of protective pads 162. Both the first layer of protective pads 161 and the second layer of protective pads 162 extend toward the center of the material storage chamber 111, with the first layer of protective pads 161 being closer to the center of the material storage chamber 111.

[0079] like Figure 4 and Figure 8 The right end of the first layer of protective pad 161 protrudes horizontally from the right end of the second layer of protective pad 162, so that a step structure is formed between the first layer of protective pad 161 and the second layer of protective pad 162. The cutting board 130 and the second layer of protective pad 162 are on the same horizontal plane, and the first layer of protective pad 161 is higher than the cutting board 130 and the second layer of protective pad 162. Figure 4 In the perspective shown, when the storage chamber 111 is blocked by the cutting plate 13, the cutting plate 13 is driven to move from right to left until the left end of the cutting plate 130 contacts the right end of the second layer of protective pad 162 (as shown in FIG. Figure 8At this time, the inclined surface 131 at the left end of the cutting plate 130 reaches the position of the step structure formed by the first layer of protective pads 161 and the second layer of protective pads 162). As a result, the step structure formed by the first layer of protective pads 161 and the second layer of protective pads 162 can cooperate with the edge of the cutting plate 130, thereby limiting the movement of the cutting plate 130 in the storage chamber 111 and further improving the sealing between the cutting plate 130 and the housing 110.

[0080] For example, the first layer of protective pad 161 and the second layer of protective pad 162 can both be made of PTFE pad material, so as to avoid scratching the edge of the cutting plate 130 while ensuring the sealing between the cutting plate 130 and the housing 110 .

[0081] In some optional embodiments, the drive mechanism 120 includes: a first drive assembly 121, including a first drive member 121a and a first buckle 121b, the first drive member 121a being connected to the cutting plate 130 via the first buckle 121b, and being used to drive the cutting plate 130 to move; in some optional embodiments, the drive mechanism 120 includes: a second drive assembly 122, including a second drive member 122a and a second buckle 122b, the second drive member 122a being connected to the padding plate 140 via the second buckle 122b, and being used to drive the padding plate 140 to move. For example, the first drive member 121a and the second drive member 122a can both be cylinders, which use an air source as power to drive the cutting plate 130 and the padding plate 140 to move, resulting in a simple and efficient driving method.

[0082] In some optional embodiments, the second drive assembly 122 further includes a linear guide rail 122c and a padding plate 140. The linear guide rail 122c can carry the material on the padding plate 140, and when the padding plate 140 moves along the linear guide rail 122c, the resistance to the movement of the padding plate 140 can be reduced, which is more conducive to driving the padding plate 140.

[0083] In some optional embodiments, the second drive assembly 122 further includes an accordion cover 171, the two ends of which are respectively connected to the side wall of the housing 110 and one end of the padding plate 140 connected to the second buckle 122b. Figure 1 As shown, the accordion cover 171 is located below the cutting plate 130. The left side of the accordion cover 171 is connected to the housing 110, and the right side of the accordion cover 171 is connected to the end of the padding plate 140 connected to the second clip 122b. The accordion cover 171 can be wrapped around the outer surface of the linear guide 122c and is configured to move with the movement of the padding plate 140. The accordion cover 171 can prevent material from entering the linear guide 122c and the cylinder, thereby extending the service life of the equipment.

[0084] In some optional embodiments, the charging device 100 further includes a dust cover 172, which is disposed outside the housing 110 and at the bottom of the padding plate 140. Figure 1 As shown, the dust cover 172 is disposed below the second drive assembly 122 to collect dust generated by the loading action and reduce environmental dust pollution.

[0085] In some optional embodiments, the charging device 100 further includes a base 119 , and the shell 110 is disposed on the base 119 . The base 119 supports the shell 110 and can improve the installation flexibility of the charging device 100 .

[0086] In some optional embodiments, the charging device 100 further includes a weight sensor 180, which is connected to the housing 110 and is used to measure the weight of the material in the storage chamber 111, and to monitor the density of each batch and between batches of materials, and to evaluate the difference in moisture content of the materials, etc. by converting weight and volume. Figure 1 As shown, the weight sensor 180 is connected to the shell 110. The weight sensor 180 can detect the weight of the shell 110 and other components and the material inside the shell 110, and then subtract the weight of the shell 110 and other components to obtain the weight of the material, which is beneficial to keep the weight of the material in the storage chamber 111 constant and the stacking density unchanged, thereby ensuring stable loading.

[0087] In some optional embodiments, the charging device 100 further includes a silo 190, which is disposed at the top of the storage cavity 111 of the housing 110 and communicates with the feed port 112. For example, the bottom of the silo 190 may be a structure that matches the feed port 112 at the top of the housing 110. Storing material in the silo 190 prevents discontinuous charging and ensures stable charging.

[0088] In some optional embodiments, the charging device 100 further includes a sealing structure, which is disposed in the through hole 115a of the side wall of the housing 110 to seal the space between the cutting plate 130 and the through hole 115a. For example, the sealing structure can be a sealing ring disposed in the through hole 115a to seal the space between the cutting plate 130 and the through hole 115a when the cutting plate 130 passes through the through hole 115a, thereby preventing the storage chamber 111 from communicating with the external environment of the housing 110 and maintaining a vacuum or negative pressure state in the storage chamber 111 or a chamber separated from the upper portion of the storage chamber 111.

[0089] Please refer to Figure 10Another embodiment of the present application provides a charging system 10, comprising: a charging device 100 according to any of the above embodiments; and a feeding device 200, connected to a feed port 112, for feeding material into the charging device 100. The charging system 10 of the present embodiment utilizes the charging device 100, and based on the structural design of the charging device 100 itself, can accurately and automatically convey materials of a fixed shape, volume, and weight without damaging the materials, thereby effectively preventing material adhesion or blockage.

[0090] In some optional embodiments, the loading system 10 further includes a material receiving device 300, which is disposed at the bottom of the discharge port 113 of the housing 110. The material receiving device 300 includes a material tray 310 and a control module. The material tray 310 is used to receive material, and the control module is used to control the movement of the material tray 310 at the bottom of the discharge port 113 of the housing 110. For example, the loading system 10 of the embodiment of the present application can be used to add material with a certain humidity to the material tray 310 of the material receiving device 300, so that the material on the material tray 310 can be dried using an oven.

[0091] In some optional embodiments, the feeding device 200 includes a hopper 210, a feed pipe 220, a loading cone hopper 230, a filter element 240, an air outlet duct 250, and a negative pressure fan 260. Materials are stored in the hopper 210, and the hopper 210 is connected to the interior of the loading cone hopper 230 through the feed pipe 220. The bottom outlet of the loading cone hopper 230 is connected to the feed port 112, and the top outlet of the loading cone hopper 230 is connected to the negative pressure fan 260 through the air outlet duct 250. The filter element 240 is arranged at the top outlet of the loading cone hopper 230. Specifically, when the negative pressure blower 260 is started, it draws air into the loading cone 230 through the air outlet pipe 250, generating a strong negative pressure within the loading cone 230, the hopper 190, and the storage chamber 111. The pressure difference allows the material in the accumulator 210 to be drawn into the loading cone 230 through the feed pipe 220 and fall into the storage chamber 111. At the same time, the filter element 240 prevents the material from entering the negative pressure blower 260 along the air outlet pipe 250. The loading system 10 of this embodiment uses a negative pressure feeding method, which has the advantages of efficient, convenient, fast, and widely applicable conveying.

[0092] Furthermore, in some of the foregoing embodiments, since the cutting plate 130, the padding plate 140 of the loading device 100 and the shell 110 have good sealing properties, this is more conducive to maintaining a negative pressure environment in the storage chamber 111, thereby facilitating negative pressure feeding.

[0093] In some optional embodiments, the charging system 10 further includes a collector 280, which is connected to the negative pressure fan 260. The collector 280 can intercept fine dust to prevent the dust from being discharged into the atmosphere and causing pollution.

[0094] In some optional embodiments, the loading system 10 further includes a back-blowing air tank 270, which is connected to the feeding cone 230. The back-blowing air tank 270 is used to blow air into the filter element 240, thereby blowing off the material adhering to the filter element 240 to avoid clogging of the filter element 240 and material loss.

[0095] In some optional embodiments, the loading system 10 further includes a connecting hose 290, the top end of which is connected to the bottom outlet of the loading cone 230, and the bottom end of which is connected to the top inlet of the silo 190. When the loading cone 230 is fixed in the application environment and the silo 190 is fixed above the housing 110, since the loading cone 230 and the silo 190 are connected via the connecting hose 290, the silo 190 does not need to bear the weight of the loading cone 230. Therefore, the weight sensor 180 can only perform weight detection on the housing 110, the silo 190 and other components, thereby preventing the weight of the loading cone 230 and the material therein from affecting the detection results of the weight sensor 180.

[0096] In some optional embodiments, the loading system 10 further includes a control unit electrically connected to the negative pressure fan 260 and the drive mechanism 120 for controlling the feeding speed via the negative pressure fan 260 and the loading via the drive mechanism 120. For example, the control unit can utilize a PLC control program, and the control module of the material receiving device 300 can also utilize a PLC control program and be integrated with the control unit. Specifically, the PLC control program can control the movement of the material tray 310 below the discharge port 113 of the housing 110 to receive and remove material discharged from the discharge port 113. Signals from the negative pressure fan 260, the drive mechanism 120, and / or the weight sensor 180 are connected to the PLC control program. When the weight sensor 180 detects that the weight of the material in the storage chamber 111 is too high, the negative pressure fan 260 is controlled to reduce the suction frequency, thereby slowly withdrawing the material. When the weight of the material in the storage chamber 111 is too low, the negative pressure fan 260 is controlled to increase the suction frequency, thereby rapidly withdrawing the material. This helps ensure a stable weight of the conveyed material. Furthermore, by controlling the drive mechanism 120, the movement speed and position of the cutting plate 130 and the padding plate 140 can be reasonably regulated. Thus, the control unit can realize automatic control, which is conducive to maintaining a constant weight of each batch of materials conveyed, and efficiently and accurately conveying materials.

[0097] The following provides a specific embodiment to introduce the operation of the loading system 10 to transport materials. Figure 10As shown, first, the negative pressure fan 260 is started and operates at a certain frequency, generating negative pressure inside the loading cone hopper 230, the silo 190 and the storage chamber 111; the material in the storage container 210 is affected by the pressure difference and enters the loading cone hopper 230, the silo 190 and the storage chamber 111 through the feed pipe 220; the filter element 240 in the loading cone hopper 230 will intercept the material to prevent the material from entering the negative pressure fan 260, thereby extending the service life of the equipment; the fine dust passing through the filter element 240 will be intercepted by the collector 280 and collected in the collector 280, reducing environmental dust pollution; a small amount of material adhering to the filter element 240 will fall into the storage chamber 111 through the backblowing effect of the backblowing air tank 270; after the material in the storage chamber 111 reaches the required weight, the drive mechanism 120 starts and runs, and outputs the material to the material tray 310 of the material receiving device 300, thereby realizing automatic loading.

[0098] In order to more clearly illustrate the advantages of the charging system 10 according to the embodiment of the present application, a comparative experiment is provided below.

[0099] Example 1

[0100] (1) Select a barrel of material (the material used in this experiment is nickel-cobalt-manganese hydroxide, a battery-grade cathode material precursor, with a water content of approximately 8% and a D50 of approximately 10 μm, where D50 refers to the particle size corresponding to when the cumulative volume distribution percentage of the material particles reaches more than 50%);

[0101] (2) Use Figure 10 The loading system 10 shown conveys the material into the material tray 310 and repeatedly samples the material in the material tray 310 four times for testing. The test data is the arithmetic mean of the four test values.

[0102] Comparative Example 1

[0103] Use the same material, only replace the double screw feeding device as Figure 10 The charging device 100 in the charging system 10 shown has the same other conditions as the embodiment, and the material in the final material tray 310 is sampled and tested four times repeatedly, and the test data is the arithmetic mean of the four test values.

[0104] The test results of Example 1 and Comparative Example 1 are as follows Figures 11 to 12 As shown, Figure 14 、 Figure 15 Microscopic photos of each sample taken at a time (magnification is 200 times).

[0105] Experimental conclusion: Figures 11 to 12 、 Figures 14 and 15 As shown, the material of Example 1 has fewer broken balls; while the material of Comparative Example 1 has Figure 15The broken balls contained in the material are circled in the middle. It can be seen that the material in Example 1 has more broken balls, which shows that the charging device 100 of the embodiment of the present application can effectively avoid damage to the material. Figure 12 As shown, the metal particles are generated by scratches and friction when the equipment is conveying materials. The material in Example 1 contains fewer metal particles, which shows that the loading system 10 and loading device 100 of the embodiment of the present application have little destructive effect on the material, no metal scratches, and low risk of introducing metal particles, which can greatly improve product quality.

[0106] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A charging device, characterized in that: include: The shell has a storage cavity, a feeding port is provided at the top of the shell, a discharging port is provided at the bottom of the shell, and a through hole is provided on the side wall of the shell; a driving mechanism, disposed outside the housing; a cutting plate connected to the driving mechanism and configured to extend into the material storage cavity through the through hole under the driving action of the driving mechanism to separate the material storage cavity into two chambers; as well as The padding plate is connected to the driving mechanism and is configured to move under the driving action of the driving mechanism to block or open the discharge port.

2. The charging device according to claim 1, characterized in that The bottom surface of the housing is recessed to form a first mounting groove, and / or the top surface of the padding plate is recessed to form a second mounting groove; The loading device also includes a sealing airbag, which is arranged in the first mounting groove of the shell and fixedly connected to the shell or arranged in the second mounting groove of the padding plate and fixedly connected to the padding plate. The sealing airbag is configured to be able to inflate or deflate.

3. The charging device according to claim 1, characterized in that The shell includes a first side wall, a second side wall, a third side wall and a fourth side wall, wherein the first side wall, the second side wall, the third side wall and the fourth side wall are sequentially connected to form the storage cavity, and the through hole is provided on the first side wall; The cutting plate is configured to extend into the material storage cavity through the through hole under the driving action of the driving mechanism and contact the second side wall, the third side wall and the fourth side wall to isolate the material storage cavity; Wherein, the end surface of the cutting plate in contact with the second side wall, the third side wall and the fourth side wall is configured as an inclined surface inclined in the vertical direction and / or is mirror-finished.

4. The charging device according to claim 3, characterized in that The loading device also includes a protective component, which is horizontally arranged on the inner side of the second side wall, the third side wall and the fourth side wall of the shell. The protective component is used to contact and seal with the end face of the cutting plate to isolate the storage cavity.

5. The charging device according to claim 4, characterized in that The protective assembly includes a first layer of protective pad and a second layer of protective pad. The first layer of protective pad and the second layer of protective pad are arranged in sequence along the direction from the feed port to the discharge port. The first layer of protective pad protrudes from the second layer of protective pad in the horizontal direction so that a step structure is formed between the first layer of protective pad and the second layer of protective pad to cooperate with the cutting plate.

6. The charging device according to any one of claims 1 to 5, characterized in that: The driving mechanism comprises: A first driving assembly, comprising a first driving member and a first buckle, wherein the first driving member is connected to the cutting plate via the first buckle, and is used to drive the cutting plate to move; and / or The second driving assembly includes a second driving member and a second buckle. The second driving member is connected to the padding plate through the second buckle to drive the padding plate to move.

7. The charging device according to claim 6, characterized in that The second drive assembly further comprises a linear guide rail connected to the pad plate; and / or The charging device further comprises an accordion cover, both ends of which are respectively connected to the side wall of the shell and one end of the padding plate connected to the second buckle; and / or The charging device further comprises a dust cover, which is arranged outside the housing and located at the bottom of the padding plate; and / or The charging device further comprises a weight sensor, wherein the weight sensor is connected to the housing; and / or The charging device further comprises a silo, which is arranged on the top of the storage cavity of the shell and communicates with the feed port; and / or The charging device further includes a sealing structure, which is arranged in the through hole of the side wall of the shell.

8. A charging system, characterized in that: include: The charging device according to any one of claims 1 to 7; as well as A feeding device is communicated with the feeding port at the top of the shell and is used for feeding materials to the charging device.

9. The charging system according to claim 8, characterized in that The feeding device includes a hopper, a feeding pipe, a feeding cone, a filter element, an air outlet pipeline, and a negative pressure fan. The hopper is connected to the interior of the feeding cone through the feeding pipe, the bottom outlet of the feeding cone is connected to the feeding port, the top outlet of the feeding cone is connected to the negative pressure fan through the air outlet pipeline, and the filter element is arranged at the top outlet of the feeding cone; and / or The charging system further comprises a material receiving device, which is arranged at the bottom of the discharge port of the shell.

10. The charging system according to claim 9, characterized in that The charging system further comprises a control unit, wherein the control unit is electrically connected to the negative pressure blower and the driving mechanism; and / or The material receiving device includes a material tray and a control module. The material tray is used to receive materials, and the control module is used to control the material tray to move at the bottom of the discharge port.

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