Flexible high airtightness feeding system and working method for graphitization production line

Abstract

The present invention belongs to the field of conveying technology, and in particular to a flexible high-air-tightness feeding system and a working method for a graphitization production line; the present invention provides a flexible high-air-tightness feeding system for a graphitization production line, comprising: a mixing device, which is arranged on a support frame, and a feeding pipe is arranged at the bottom; a feeding assembly, which is lifted and arranged on the support frame and is located below the feeding pipe; the feeding assembly comprises a plurality of limit members; wherein, after the feeding assembly moves upward to be sleeved on the outer wall of the feeding pipe, the limit members are pushed to the outer shape by the top of the feeding pipe, and the outer walls of each limit member abut against the outer wall of the feeding pipe to clamp the feeding pipe to prevent it from shaking; through the cooperation between the feeding assembly and the feeding pipe, when docking, the feeding assembly is sleeved on the outer wall of the feeding pipe, and each limit member is suitable for clamping and limiting the feeding pipe from all sides to prevent the feeding pipe from shaking during feeding, thereby improving the air tightness between the feeding assembly and the feeding pipe.

Description

Technical Field

[0001] The invention belongs to the field of conveying technology, and specifically relates to a filling device, and in particular to a flexible high-airtightness feeding system and a working method for a graphitization production line. Background Art

[0002] For powdered materials, according to different formulas, materials with different ingredients need to be transported to the feeding system. After mixing and stirring, the feeding system is pressurized to achieve the effect of rapid feeding.

[0003] When the feeding system is unloading materials, a unloading conduit is provided on the storage bin for lifting and lowering, and the unloading conduit is connected with the unloading pipe of the feeding system to guide the materials to fall accurately into the corresponding material box of the storage bin.

[0004] In the related art, since the feeding conduit is mostly made of hard material, the feeding conduit is mostly in a state of mutual contact when docking with the feeding pipe, and a buffer sheet is provided on the contact surface between the feeding conduit and the bottom wall of the feeding pipe to improve the airtightness of the two. However, when pressurizing the feeding system to discharge the material, the feeding pipe will vibrate relative to the feeding conduit, and the vibration of the feeding pipe will cause a gap between the feeding conduit and the feeding pipe, and some powdered materials will splash around.

[0005] Therefore, how to solve the problem of reduced air tightness between the feeding conduit and the feeding pipe caused by the shaking of the feeding pipe in the feeding system is a technical problem that urgently needs to be solved in this field.

[0006] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the invention

[0007] The embodiments of the present disclosure at least provide a flexible and highly airtight feeding system for a graphitization production line and a working method thereof.

[0008] In a first aspect, the present disclosure provides a flexible and highly airtight feeding system for a graphitization production line, comprising:

[0009] A mixing device is arranged on a supporting frame and has a feeding pipe at the bottom;

[0010] A material discharge assembly, which is lifted and lowered on a support frame and is located below the material discharge pipe;

[0011] The blanking assembly includes a plurality of limiters;

[0012] Among them, after the feeding assembly moves upward to be sleeved on the outer wall of the feeding tube, the limit piece is pushed to the outer shape by the top of the feeding tube, and the outer wall of each limit piece abuts against the outer wall of the feeding tube to clamp the feeding tube to prevent it from shaking.

[0013] In an optional embodiment, the blanking assembly includes: a connecting pipe, which is lifted and lowered on a support frame;

[0014] A docking ring, which is arranged above the connecting pipe and has an inner diameter larger than the outer diameter of the feeding pipe;

[0015] The limiting member is a flexible member, and its two ends are respectively arranged on the top wall of the connecting pipe and the bottom wall of the docking ring;

[0016] The stoppers are arranged at equal intervals along the circumference of the docking ring;

[0017] The sealing sleeve, whose upper and lower ends are respectively arranged on the connecting pipe and the docking ring, and are located outside the limiting member;

[0018] Among them, after the docking ring is set on the outer wall of the discharge pipe, each limiter is pushed to deform outward to increase the contact area between the outer wall of the limiter and the outer wall of the discharge pipe.

[0019] In an optional embodiment, an expansion ring is provided on the inner wall of the docking ring, and the interior of the expansion ring is hollow;

[0020] When the limiting member is squeezed to change shape, the limiting member conveys air into the expansion ring, and the expansion ring expands inward to seal the feed pipe.

[0021] In an optional embodiment, the blanking assembly further includes a positioning ring, which is arranged above the connecting pipe and located outside the limiting member;

[0022] The interior of the positioning ring is hollow and communicated with the expansion ring;

[0023] When the limiting member is squeezed to change shape, the air in the positioning ring is suitable to flow toward the expansion ring.

[0024] In an optional embodiment, the stopper is hollow inside, and the upper end is connected to the expansion ring;

[0025] A gap is provided between the outer wall of the limiting member and the inner wall of the positioning ring;

[0026] When the limiting member is deformed outward, the air in the positioning ring flows toward the expansion ring through the limiting member.

[0027] In an optional embodiment, a plurality of communication openings are provided on the inner wall of the positioning ring corresponding to the position limiting member, and a sliding block is slidably provided in each of the communication openings;

[0028] One side of the sliding block is arranged on the outer wall of the limiting member, and the sliding block is suitable for connecting the limiting member and the positioning ring.

[0029] In an optional embodiment, the storage bin is provided with a plurality of storage cavities;

[0030] A support frame, which is slidably arranged on the upper end of the storage bin;

[0031] A mixing device is arranged on a supporting frame and has a feeding pipe at the bottom;

[0032] A material discharge assembly, which is lifted and lowered on a support frame and is located below the material discharge pipe;

[0033] The material unloading assembly comprises: a connecting pipe, which is lifted and lowered on a supporting frame;

[0034] A docking ring, which is arranged above the connecting pipe and has an inner diameter larger than the outer diameter of the feeding pipe;

[0035] A plurality of limiters, wherein the limiters are flexible members, and the two ends of the limiters are respectively arranged on the top wall of the connecting pipe and the bottom wall of the docking ring;

[0036] The stoppers are arranged at equal intervals along the circumference of the docking ring;

[0037] The sealing sleeve, whose upper and lower ends are respectively arranged on the connecting pipe and the docking ring, and are located outside the limiting member;

[0038] Among them, after the docking ring is set on the outer wall of the discharge pipe, each limiter is pushed to deform outward to increase the contact area between the outer wall of the limiter and the outer wall of the discharge pipe.

[0039] In an optional embodiment, an expansion ring is provided on the inner wall of the docking ring, and the interior of the expansion ring is hollow;

[0040] When the limiting member is squeezed to change shape, the limiting member conveys air into the expansion ring, and the expansion ring expands inward to seal the feed pipe.

[0041] In an optional embodiment, the blanking assembly further includes a positioning ring, which is arranged above the connecting pipe and located outside the limiting member;

[0042] The interior of the positioning ring is hollow and communicated with the expansion ring;

[0043] When the limiting member is squeezed to change shape, the air in the positioning ring is suitable to flow toward the expansion ring.

[0044] In an optional embodiment, the stopper is hollow inside, and the upper end is connected to the expansion ring;

[0045] A gap is provided between the outer wall of the limiting member and the inner wall of the positioning ring;

[0046] When the limiting member is deformed outward, the air in the positioning ring flows toward the expansion ring through the limiting member.

[0047] In an optional embodiment, a plurality of communication openings are provided on the inner wall of the positioning ring corresponding to the position limiting member, and a sliding block is slidably provided in each of the communication openings;

[0048] One side of the sliding block is arranged on the outer wall of the limiting member, and the sliding block is suitable for connecting the limiting member and the positioning ring.

[0049] In a second aspect, the embodiments of the present disclosure further provide a working method of a flexible high-airtightness feeding system for a graphitization production line, comprising:

[0050] The material discharge assembly moves upward until the docking ring of the material discharge assembly is set on the outer wall of the material discharge pipe;

[0051] The feed tube squeezes the limiter to deform outward, and the outer wall of each limiter abuts against the outer wall of the feed tube to clamp the feed tube to prevent it from shaking;

[0052] During the deformation process, the limiting member conveys air into the expansion ring so that the expansion ring seals the gap between the feeding pipe and the docking ring.

[0053] The beneficial effect of the present invention is that the flexible high-airtightness feeding system and working method for the graphitization production line can prevent the feeding pipe from shaking during feeding through the cooperation between the feeding pipe and the feeding assembly. Before feeding, the feeding assembly moves upward to be sleeved on the outer wall of the feeding pipe, and each stopper is suitable for clamping the feeding pipe from all sides to prevent the feeding pipe from shaking during feeding, thereby improving the airtightness between the feeding assembly and the feeding pipe.

[0054] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0055] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, this article specifically cites preferred embodiments and provides detailed descriptions as follows in conjunction with the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0057] Figure 1 A three-dimensional diagram of a flexible and highly airtight feeding system for a graphitization production line provided by an embodiment of the present disclosure;

[0058] Figure 2 A three-dimensional diagram of a blanking assembly provided for an embodiment of the present disclosure;

[0059] Figure 3 A cutaway perspective view of a blanking assembly is provided for an embodiment of the present disclosure;

[0060] Figure 4 A schematic diagram of a state where a feed tube provided in an embodiment of the present disclosure is inserted into an internal feed assembly;

[0061] Figure 5 A three-dimensional diagram of a mixing device and a storage bin provided in an embodiment of the present disclosure.

[0062] In the figure:

[0063] 1. Mixing device; 10. Feeding pipe; 2. Feeding assembly; 20. Limiting piece; 21. Connecting pipe; 22. Docking ring; 23. Sealing sleeve; 24. Expansion ring; 25. Positioning ring; 26. Connecting port; 27. Slider; 3. Storage bin; 30. Storage cavity; 4. Support frame. DETAILED DESCRIPTION

[0064] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] In this article, when it is mentioned that the first component is located on the second component, this may mean that the first component may be directly formed on the second component, or the third component may be interposed between the first component and the second component. In addition, in the drawings, in order to effectively describe the technical content, the thickness of the components may be exaggerated or reduced.

[0066] Herein, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." modify the entire list of elements when following a list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0067] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limited. As used herein, the singular articles "one", "an" and "the" may also be intended to include plural forms, unless it is clearly indicated above that this is not the case. The terms "comprise", "include" and "have" are inclusive, and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the specific order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.

[0068] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Therefore, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, so that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. On the contrary, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0069] After research, it was found that the shortcomings of the existing technology are: when the feeding system is unloading, a unloading conduit is set on the storage bin, and the unloading conduit is docked with the unloading pipe of the feeding system to guide the material to accurately fall into the corresponding material box of the storage bin. In the related technology, since the unloading conduit is mostly made of hard material, the unloading conduit is mostly in a state of mutual abutment when docking with the unloading pipe, and a buffer sheet is set on the contact surface between the unloading conduit and the bottom wall of the unloading pipe to improve the air tightness of the two. However, when pressurizing the feeding system to unload materials, the unloading pipe will shake relative to the unloading conduit, and the shaking of the unloading pipe will cause a gap between the unloading conduit and the unloading pipe, and some powdered materials will splash around.

[0070] Therefore, how to solve the problem of reduced air tightness between the discharge conduit and the discharge pipe caused by the shaking of the discharge pipe is a technical problem that urgently needs to be solved in this field.

[0071] The defects existing in the above solutions are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present invention in this article for the above problems should be the contributions made by the inventor to the present invention during the disclosure process.

[0072] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0073] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0074] like Figures 1 to 5 As shown, some embodiments provide a flexible high-airtightness feeding system for a graphitization production line, including: a mixing device 1, which is arranged on a support frame 4, and a feeding pipe 10 is arranged at the bottom; a stirring drive is arranged on one side of the mixing device 1, and a stirring paddle is rotatably arranged in the mixing device 1, and the stirring paddle is connected to the stirring drive by transmission. After various powder materials are transported into the mixing device 1, the mixing device 1 is suitable for mixing and stirring materials. A feeding assembly 2 is arranged on the support frame 4 and is located below the feeding pipe 10; the feeding assembly 2 includes a plurality of limiters 20; wherein, after the feeding assembly 2 moves upward to be sleeved on the outer wall of the feeding pipe 10, the limiters 20 are pushed by the feeding pipe 10 to deform in shape, and the outer walls of each limiter 20 abut against the outer wall of the feeding pipe 10 to clamp the feeding pipe 10 to prevent it from shaking. Through the cooperation between the feeding pipe 10 and the feeding assembly 2, the shaking of the feeding pipe 10 during feeding is avoided. Before unloading, the unloading assembly 2 moves upward to be sleeved on the outer wall of the unloading tube 10, and each stopper 20 is suitable for clamping and limiting the unloading tube 10 from all sides to prevent the unloading tube 10 from shaking during unloading, thereby improving the air tightness between the unloading assembly 2 and the unloading tube 10. When each stopper 20 is squeezed and deformed toward the outer shape, air is transported into the expansion ring 24, and the expansion ring 24 expands and deforms inward to seal the gap between the outer wall of the unloading tube 10 and the inner wall of the docking ring 22, further improving the air tightness between the unloading assembly 2 and the unloading tube 10.

[0075] Reference Figure 2The material discharge assembly 2 includes: a connecting tube 21, which is lifted and lowered on the support frame 4; preferably, a lifting drive is provided on the side wall of the support frame 4, and the lifting drive is connected to the connecting tube 21 in a transmission manner, and the lifting drive is suitable for driving the connecting tube 21 to move vertically up and down. A docking ring 22 is provided above the connecting tube 21, and its inner diameter is larger than the outer diameter of the material discharge tube 10; when the connecting tube 21 moves upward, it is suitable for driving the docking ring 22 to be sleeved on the outer wall of the material discharge tube 10, and the inner diameter of the docking ring 22 is larger than the outer diameter of the material discharge tube 10, which helps the docking ring 22 to be accurately sleeved on the outer wall of the material discharge tube 10. Furthermore, after the material discharge is completed, the connecting tube 21 moves downward, and after the docking ring 22 is separated from the material discharge tube 10, the docking ring 22 is suitable for receiving part of the powder material remaining in the material discharge tube 10, so that it falls accurately into the corresponding storage cavity 30. The stopper 20 is a flexible member, and its two ends are respectively arranged on the top wall of the connecting pipe 21 and the bottom wall of the docking ring 22; when the feed pipe 10 is not inserted into the docking ring 22, the middle of each stopper 20 is bent inward. Each stopper 20 is arranged at equal intervals along the circumference of the docking ring 22; the sealing sleeve 23, the upper and lower ends of which are respectively arranged on the connecting pipe 21 and the docking ring 22, and are located outside the stopper 20; the sealing sleeve 23 is a flexible member, and the sealing sleeve 23 is suitable for preventing the powdered material dropped in the feed pipe 10 from splashing around.

[0076] Reference Figure 4 When the connecting pipe 21 moves upward, the docking ring 22 is driven to be sleeved on the outer wall of the feeding pipe 10. At this time, a gap is provided between the inner wall of the docking ring 22 and the outer wall of the feeding pipe 10. After the feeding pipe 10 is inserted into the docking ring 22, the feeding pipe 10 squeezes each stopper 20. Figure 4 As described in the figure, the feed tube 10 applies an outward force F to each limit member 20 to deform the limit member 20 outward, and the middle part of the limit member 20 is gradually squeezed from a curved shape to a vertical shape, and the contact area between the outer wall of the limit member 20 and the outer wall of the feed tube 10 increases. Each limit member 20 is suitable for clamping the feed tube 10 from all sides to limit the feed tube 10, thereby improving the stability of the feed tube 10 when docking with the connecting pipe 21, and avoiding the shaking of the feed tube 10 during feeding; at the same time, during the process of the limit member 20 being squeezed and deformed, the docking ring 22 is pushed to move upward relative to the feed tube 10, thereby further improving the limiting effect of the feed assembly 2 on the feed tube 10.

[0077] Reference Figure 3, an expansion ring 24 is provided on the inner wall of the docking ring 22, and the expansion ring 24 is hollow inside; wherein, when the stopper 20 is squeezed to change into the outer shape, the stopper 20 conveys air into the expansion ring 24, and the expansion ring 24 expands inward to seal the feed pipe 10. The feed assembly 2 also includes a positioning ring 25, which is arranged above the connecting pipe 21 and outside the stopper 20; the positioning ring 25 is arranged inside the sealing sleeve 23. The positioning ring 25 is hollow inside and communicated with the expansion ring 24; wherein, when the stopper 20 is squeezed to change into the outer shape, the air in the positioning ring 25 is suitable to flow to the expansion ring 24.

[0078] Continue to refer to the attached Figure 4 , the interior of the limiter 20 is hollow, and the upper end is connected to the expansion ring 24; there is a gap between the outer wall of the limiter 20 and the inner wall of the positioning ring 25; when the feed tube 10 is inserted into the docking ring 22, each limiter 20 is squeezed to deform in the shape, and during the deformation process, the contact area between the outer wall of the limiter 20 and the outer wall of the feed tube 10 increases. Among them, when the limiter 20 deforms in the shape, the air in the positioning ring 25 flows to the expansion ring 24 through the limiter 20. The inner wall of the positioning ring 25 is provided with a plurality of connecting ports 26 corresponding to the limiter 20, and a slider 27 is slidably provided in each of the connecting ports 26; the slider 27 is suitable for radially sliding in the connecting port 26, and the slider 27 is slidably sealed with the connecting port 26. One side of the slider 27 is arranged on the outer wall of the limiter 20, and the slider 27 is suitable for connecting the limiter 20 with the positioning ring 25.

[0079] Reference Figure 5 Some embodiments provide a flexible and highly airtight feeding system for a graphitization production line, comprising: a storage bin 3, in which a plurality of storage cavities 30 are arranged; the upper end of the storage bin 3 is open; a support frame 4, which is slidably arranged at the upper end of the storage bin 3; a sliding drive is arranged on the side wall of the support frame 4, and the sliding drive is adapted to drive the support frame 4 to move horizontally along the length direction of the storage bin 3. A mixing device 1 is arranged on a support frame 4, and a feeding pipe 10 is arranged at the bottom; a feeding assembly 2 is arranged on the support frame 4 for lifting and lowering, and is located below the feeding pipe 10; the feeding assembly 2 includes: a connecting pipe 21, which is arranged on the support frame 4 for lifting and lowering; a docking ring 22, which is arranged above the connecting pipe 21, and the inner diameter is larger than the outer diameter of the feeding pipe 10; a plurality of limit members 20, the limit members 20 are flexible members, and the two ends thereof are respectively arranged on the top wall of the connecting pipe 21 and the bottom wall of the docking ring 22; each of the limit members 20 is arranged at equal intervals along the circumference of the docking ring 22; a sealing sleeve 23, the upper and lower ends of which are respectively arranged on the connecting pipe 21 and the docking ring 22, and are located outside the limit members 20; wherein, after the docking ring 22 is sleeved on the outer wall of the feeding pipe 10, each limit member 20 is pushed to deform outward to increase the contact area between the outer wall of the limit member 20 and the outer wall of the feeding pipe 10.

[0080] Some embodiments provide a working method of a flexible high-airtightness feeding system for a graphitization production line, including: the feed assembly 2 moves upward until the docking ring 22 of the feed assembly 2 is sleeved on the outer wall of the feed pipe 10; the feed pipe 10 squeezes the limit members 20 to deform outward, and the outer walls of each limit member 20 abut against the outer wall of the feed pipe 10 to clamp the feed pipe 10 to prevent it from shaking; during the deformation process, the limit member 20 delivers air into the expansion ring 24 to enable the expansion ring 24 to seal the gap between the feed pipe 10 and the docking ring 22.

[0081] In summary, the cooperation between the feeding tube 10 and the feeding assembly 2 can prevent the feeding tube 10 from shaking during feeding. Before feeding, the connecting tube 21 moves vertically upward until the docking ring 22 is sleeved on the outer wall of the feeding tube 10, and the feeding tube 10 squeezes each limiting member 20 to deform in shape. Each limiting member 20 is suitable for clamping and limiting the feeding tube 10 from all sides to prevent the feeding tube 10 from shaking during feeding, thereby improving the air tightness between the feeding assembly 2 and the feeding tube 10. When each limiting member 20 is squeezed and deformed in shape, air is transported into the expansion ring 24, and the expansion ring 24 expands and deforms inward to seal the gap between the outer wall of the feeding tube 10 and the inner wall of the docking ring 22, thereby further improving the air tightness between the feeding assembly 2 and the feeding tube 10.

[0082] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0083] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 of the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used in this document unless explicitly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0084] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A flexible and highly airtight feeding system for a graphitization production line, characterized in that: include: A mixing device (1), which is arranged on a support frame (4) and has a lower material pipe (10) at the bottom; A material discharge assembly (2), which is located below the material discharge pipe (10) and is lifted and lowered on the support frame (4); The blanking assembly (2) comprises a plurality of limiting members (20); After the material discharge assembly (2) moves upward to be sleeved on the outer wall of the material discharge pipe (10), the stopper (20) is pushed by the material discharge pipe (10) to deform in shape, so that the outer wall of each stopper (20) abuts against the outer wall of the material discharge pipe (10) to clamp the material discharge pipe (10) to prevent the material discharge pipe (10) from shaking; The material unloading assembly (2) comprises: a connecting pipe (21) which is arranged to be lifted on a support frame (4); A docking ring (22), which is arranged above the connecting pipe (21) and has an inner diameter greater than the outer diameter of the feeding pipe (10); The limiting member (20) is a flexible member, and its two ends are respectively arranged on the top wall of the connecting pipe (21) and the bottom wall of the docking ring (22); The stoppers (20) are arranged at equal intervals along the circumference of the docking ring (22); A sealing sleeve (23), the upper and lower ends of which are respectively arranged on the connecting pipe (21) and the docking ring (22), and are located outside the limiting member (20); After the docking ring (22) is sleeved on the outer wall of the feed tube (10), each stopper (20) is pushed to deform outward to increase the contact area between the outer wall of the stopper (20) and the outer wall of the feed tube (10), so that the outer wall of each stopper (20) abuts against the outer wall of the feed tube (10) to clamp the feed tube (10); An expansion ring (24) is provided on the inner wall of the docking ring (22), and the interior of the expansion ring (24) is hollow; When the limiting member (20) is squeezed and deformed in an outer shape, the limiting member (20) delivers air into the expansion ring (24), and the expansion ring (24) expands inwardly to seal the discharge pipe (10), thereby clamping the limiting discharge pipe (10).

2. The flexible high airtightness feeding system for graphitization production line according to claim 1, characterized in that: The blanking assembly (2) further comprises a positioning ring (25), which is arranged above the connecting pipe (21) and located outside the limiting member (20); The interior of the positioning ring (25) is hollow and communicates with the expansion ring (24); When the limiting member (20) is squeezed and deformed toward the outer shape, the air in the positioning ring (25) is suitable for flowing toward the expansion ring (24).

3. The flexible high airtightness feeding system for graphitization production line according to claim 2, characterized in that: The limiting member (20) is hollow inside, and the upper end is in communication with the expansion ring (24); A gap is provided between the outer wall of the limiting member (20) and the inner wall of the positioning ring (25); When the limiting member (20) is deformed toward the outer shape, the air in the positioning ring (25) flows toward the expansion ring (24) through the limiting member (20).

4. The flexible and highly airtight feeding system for a graphitization production line according to claim 3, characterized in that: A plurality of communication openings (26) are provided on the inner wall of the positioning ring (25) corresponding to the limiting member (20), and a sliding block (27) is slidably disposed in each of the communication openings (26); One side of the sliding block (27) is arranged on the outer wall of the limiting member (20), and the sliding block (27) is suitable for connecting the limiting member (20) and the positioning ring (25).

5. A flexible and highly airtight feeding system for a graphitization production line, characterized in that: include: A material storage bin (3) having a plurality of material storage cavities (30) disposed therein; A support frame (4) slidably disposed on the upper end of the material storage bin (3); A mixing device (1), which is arranged on a support frame (4) and has a lower material pipe (10) at the bottom; A material discharge assembly (2), which is lifted and disposed on a support frame (4) and is located below a material discharge pipe (10); The material unloading assembly (2) comprises: a connecting pipe (21) which is arranged to be lifted on a support frame (4); A docking ring (22), which is arranged above the connecting pipe (21) and has an inner diameter greater than the outer diameter of the feeding pipe (10); A plurality of limiting members (20), wherein the limiting members (20) are flexible members, and two ends of the limiting members are respectively arranged on the top wall of the connecting pipe (21) and the bottom wall of the docking ring (22); The stoppers (20) are arranged at equal intervals along the circumference of the docking ring (22); A sealing sleeve (23), the upper and lower ends of which are respectively arranged on the connecting pipe (21) and the docking ring (22), and are located outside the limiting member (20); After the docking ring (22) is sleeved on the outer wall of the feed tube (10), each stopper (20) is pushed to deform outward, thereby increasing the contact area between the outer wall of the stopper (20) and the outer wall of the feed tube (10); An expansion ring (24) is provided on the inner wall of the docking ring (22), and the interior of the expansion ring (24) is hollow; When the limiting member (20) is squeezed and deformed in an outer shape, the limiting member (20) delivers air into the expansion ring (24), and the expansion ring (24) expands inwardly to seal the discharge pipe (10).

6. The flexible high airtightness feeding system for graphitization production line according to claim 5, characterized in that: The blanking assembly (2) further comprises a positioning ring (25), which is arranged above the connecting pipe (21) and located outside the limiting member (20); The interior of the positioning ring (25) is hollow and communicates with the expansion ring (24); When the limiting member (20) is squeezed and deformed toward the outer shape, the air in the positioning ring (25) is suitable for flowing toward the expansion ring (24).

7. The flexible and highly airtight feeding system for a graphitization production line according to claim 6, characterized in that: The limiting member (20) is hollow inside, and the upper end is in communication with the expansion ring (24); A gap is provided between the outer wall of the limiting member (20) and the inner wall of the positioning ring (25); When the limiting member (20) is deformed toward the outer shape, the air in the positioning ring (25) flows toward the expansion ring (24) through the limiting member (20).

8. The flexible high airtightness feeding system for graphitization production line according to claim 7, characterized in that: A plurality of communication openings (26) are provided on the inner wall of the positioning ring (25) corresponding to the limiting member (20), and a sliding block (27) is slidably disposed in each of the communication openings (26); One side of the sliding block (27) is arranged on the outer wall of the limiting member (20), and the sliding block (27) is suitable for connecting the limiting member (20) and the positioning ring (25).

9. A working method of a feeding system, characterized in that: A flexible high-airtightness feeding system for a graphitization production line as claimed in any one of claims 1 to 8, comprising: The material discharge assembly (2) moves upward until the docking ring (22) of the material discharge assembly (2) is sleeved on the outer wall of the material discharge pipe (10); The feed tube (10) squeezes the limiting member (20) to deform outwardly, and the outer wall of each limiting member (20) abuts against the outer wall of the feed tube (10) to clamp the feed tube (10) to prevent the feed tube (10) from shaking; During the deformation process, the limiting member (20) delivers air into the expansion ring (24), so that the expansion ring (24) seals the gap between the feed tube (10) and the docking ring (22).

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