Material filling system

Abstract

The embodiment of the invention discloses a material filling system. The material filling system comprises a material filling pipeline, a nitrogen pipeline, a vacuumizing pipeline and a filling gun, the filling gun comprises an air exhaust channel, a nitrogen charging channel and a material filling channel; the air exhaust channel is communicated with the vacuumizing pipeline, a first dew point detection device is arranged on the vacuumizing pipeline, the vacuumizing pipeline is used for extracting air at the position of a to-be-filled material in a material barrel on the filling station through the air exhaust channel, and the first dew point detection device is used for detecting the first dew point temperature of the position of the to-be-filled material; the nitrogen filling channel communicates with a nitrogen pipeline, and the nitrogen pipeline is used for filling nitrogen into the material barrel through the nitrogen filling channel when the first dew point temperature is higher than a preset temperature threshold value; the material filling channel communicates with the material filling pipeline, and the material filling pipeline is used for filling materials into the material barrel through the material filling channel when the first dew point temperature is equal to or smaller than a preset temperature threshold value. According to the embodiment of the invention, the moisture content in the material barrel during material filling is obviously reduced.

Description

Technical Field

[0001] The invention relates to the technical field of filling, and in particular to a material filling system. Background Art

[0002] In the field of filling technology, if the material comes into contact with water molecules too much, it will easily lead to changes in the chemical properties of the product, degradation of physical properties, and even affect the safety and service life of the product. In order to solve the above problems, it is necessary to isolate the water molecules in the air as much as possible during the filling process.

[0003] In the existing technical solutions, nitrogen is often used to replace the air in the material barrel to reduce the moisture content in the material barrel, and then the material is filled into the material barrel through a filling gun. However, in the process of the filling gun filling the material into the material barrel, some air will also be carried into the filling barrel, and it cannot be guaranteed that the moisture content in the material barrel is lower than the preset standard. Therefore, a material filling system that can solve the above problems is urgently needed. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a material filling system to solve the problem of excessively high water content in a material barrel during material filling.

[0005] In a first aspect, the present invention provides a material filling system, the material filling system comprising a material filling pipeline, a nitrogen pipeline, a vacuum pipeline and a filling gun;

[0006] The filling gun includes an air extraction channel, a nitrogen filling channel and a material filling channel extending along the filling direction;

[0007] The air extraction channel is connected to the vacuum extraction pipeline, and a first dew point detection device is arranged on the vacuum extraction pipeline. The vacuum extraction pipeline is used to extract gas at the position of the material to be filled in the material barrel at the filling station through the air extraction channel, and the first dew point detection device is used to detect the first dew point temperature of the position of the material to be filled through the gas extracted from the air extraction channel;

[0008] The nitrogen filling channel is connected to a nitrogen pipeline, and the nitrogen pipeline is used to fill nitrogen into the material barrel through the nitrogen filling channel when the first dew point temperature of the position of the material to be filled is higher than a preset temperature threshold;

[0009] The material filling channel is connected to the material filling pipeline, and the material filling pipeline is used to fill the material into the material barrel through the material filling channel when the first dew point temperature of the position of the material to be filled is equal to or less than the preset temperature threshold.

[0010] In this embodiment, an air extraction channel, a nitrogen filling channel and a material filling channel are provided in the filling gun. When material filling is required, nitrogen is first filled into the material barrel through the nitrogen filling channel using a nitrogen pipeline, and then a small portion of gas is extracted through the air extraction channel using a vacuum pipeline. The first dew point detection device in the vacuum pipeline can perform a first dew point detection on the gas in the vacuum pipeline. If the first dew point temperature detected by the first dew point detection device is greater than the preset temperature threshold, in order to further reduce the moisture content in the material barrel, nitrogen can be further supplemented into the material barrel through the nitrogen filling channel using the nitrogen pipeline, so that the first dew point temperature detected by the first dew point detection device is equal to or less than the preset temperature threshold. At this time, the material is filled into the material barrel through the material filling channel, that is, material filling is performed only when the moisture content in the material barrel is lower than the standard, thereby ensuring that the moisture content in the material barrel is lower than the preset standard.

[0011] In another embodiment, the air extraction channel, the nitrogen filling channel and the material filling channel are all arranged around the axis of the filling gun; the material filling channel is sleeved on the nitrogen filling channel; and the air extraction channel is sleeved on the material filling channel.

[0012] In the above embodiment, the air extraction channel, the nitrogen filling channel and the material filling channel are in a layered relationship, ensuring that the filling gun can simultaneously realize the air extraction, nitrogen filling and filling functions, while ensuring that the moisture content in the material barrel is lower than the standard, and also increasing the material filling efficiency.

[0013] In another embodiment, perpendicular to the length direction of the filling gun, the distance from the outer wall of the nitrogen filling channel to the inner wall of the material filling channel is greater than the diameter of the nitrogen filling channel, and the distance from the outer wall of the material filling channel to the inner wall of the exhaust channel is less than the diameter of the nitrogen filling channel.

[0014] In the above embodiment, the gas flow rate is relatively fast. Therefore, even if the gas is allowed, in order not to affect the normal material filling efficiency of the filling gun, the material filling channel is set to the largest channel to ensure the material filling efficiency.

[0015] In another embodiment, the filling end of the nitrogen filling channel, the discharge end of the material filling channel and the exhaust end of the exhaust channel are sequentially staggered along the length direction of the filling gun.

[0016] In the above embodiment, the nitrogen filling pipeline is arranged at the front end to ensure that the air at the bottom of the material barrel can also be replaced by nitrogen, and the exhaust channel is arranged at the rear end to ensure that the moisture content at the position where the material is to be filled in the material barrel is also lower than the preset standard and to prevent the material from being sucked away.

[0017] In another embodiment, the vacuum pipeline extracts gas from at least a first position and a second position in the material barrel at the filling station, and the first dew point detection device detects at least the dew point temperature of the first position and the second position; the first position is lower than the height of the second position from the bottom of the material barrel, and the second position is close to the top of the material barrel.

[0018] In the above embodiment, dew point temperature detection is performed on both the first position and the second position, and since the first position is lower than the second position, the dew point temperature at different positions in the material barrel is ensured to be lower than the preset temperature threshold, further ensuring that the moisture content at different positions in the material barrel is lower than the preset standard.

[0019] In another embodiment, the material filling system also includes a chassis, and the filling gun and the filling station are arranged in the chassis; a second dew point detection device is arranged in the chassis, and the second dew point detection device is used to detect a second dew point temperature in the chassis; the filling gun is also used to stop filling material into the material barrel when the second dew point temperature is higher than a preset temperature threshold.

[0020] In the above embodiment, the filling gun and the filling station are arranged in the chassis. The chassis is a closed space to reduce air exchange during the filling process. A second dew point temperature detection device is arranged in the chassis to detect the second dew point temperature in the chassis. The filling gun fills the material into the material barrel only when the second dew point temperature is lower than or equal to the preset temperature threshold, which ensures that the moisture content in the chassis is lower than the preset standard, and further ensures that the moisture content in the material barrel in the chassis is lower than the preset standard.

[0021] In another embodiment, the system also includes a closed workshop, and the chassis is arranged in the closed workshop; a third dew point detection device is arranged in the closed workshop, and the third dew point detection device is used to detect the third dew point temperature in the closed workshop; an air filtering device is also arranged in the closed workshop; the air filtering device is used to filter the air in the closed workshop when the third dew point temperature is higher than a preset temperature threshold.

[0022] In the above embodiment, a closed workshop is also set up outside the chassis. In order to ensure that the dry air, oxygen content and water molecules in the closed workshop meet the filling conditions, an air filter is also provided in the closed workshop to ensure that the third dew point temperature in the closed workshop is lower than or equal to the preset temperature threshold, further ensuring that the moisture content in the material barrel during filling is lower than the preset standard.

[0023] In another embodiment, the filling gun is further used to stop filling the material into the material barrel when the third dew point temperature is higher than a preset temperature threshold.

[0024] In the above embodiment, when the third dew point temperature is higher than the preset temperature threshold, the filling gun will stop filling the material into the material barrel, which further ensures that the moisture content in the material barrel is lower than the preset standard during filling.

[0025] In another embodiment, an airlock is further provided outside the closed workshop; the airlock is provided at the front station and the back station of the filling station; the system also includes a material barrel conveying mechanism, which is used to receive empty material barrels and convey the material barrels through the front station to the filling station, and is also used to convey the material barrels that have completed filling at the filling station to the back station; the airlock is used to filter the air entering the closed workshop.

[0026] In the above embodiment, an airlock is set outside the closed workshop. The airlock can filter the air at the front and back stations of the filling station to reduce the air entering the closed workshop, ensuring that the material barrels are in an environment with a moisture content lower than the preset standard during the entire process of conveying the material barrels by the material barrel conveying mechanism, further ensuring that the moisture content in the material barrels is lower than the preset standard during material filling.

[0027] In another embodiment, a buffer room is provided outside the closed workshop; a monitor and a buffer door are provided on the buffer room, and the buffer door is provided between the closed workshop and the buffer room; the monitor is used to monitor the third dew point temperature in the closed workshop; the buffer door is used to prohibit opening when the third dew point temperature is higher than a preset temperature threshold.

[0028] In the above embodiment, a buffer room is further provided outside the enclosed workshop. The monitor in the buffer room can monitor the third dew point temperature. When the third dew point temperature is higher than the preset temperature threshold, the buffer door will not open, restricting the entry of personnel, thereby reducing the entry of air into the enclosed space, further ensuring that the third dew point temperature is lower than the preset temperature threshold, thereby ensuring that the moisture content in the material barrel is lower than the preset standard when the material is filled.

[0029] One or more of the above embodiments of the present invention have at least one or more of the following beneficial effects:

[0030] In this embodiment, an air extraction channel, a nitrogen filling channel and a material filling channel are provided in the filling gun. When material filling is required, nitrogen is first filled into the material barrel through the nitrogen filling channel using a nitrogen pipeline, and then a small portion of gas is extracted through the air extraction channel using a vacuum pipeline. The first dew point detection device in the vacuum pipeline can perform a first dew point detection on the gas in the vacuum pipeline. If the first dew point temperature detected by the first dew point detection device is greater than the preset temperature threshold, in order to further reduce the moisture content in the material barrel, nitrogen can be further supplemented into the material barrel through the nitrogen filling channel using the nitrogen pipeline, so that the first dew point temperature detected by the first dew point detection device is equal to or less than the preset temperature threshold. At this time, the material is filled into the material barrel through the material filling channel, that is, material filling is performed only when the moisture content in the material barrel is lower than the standard, thereby ensuring that the moisture content in the material barrel is lower than the preset standard.

[0031] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. It is easy for those skilled in the art to understand that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In addition, similar numbers in the figures are used to represent similar components, among which:

[0033] Figure 1 is a schematic structural diagram of a material filling system in one embodiment;

[0034] Figure 2 is a schematic diagram of the structure of a canned gun in one embodiment;

[0035] Figure 3 is a schematic diagram of the structure of a chassis in an embodiment;

[0036] Figure 4 is a schematic diagram of the structure of a closed workshop in an embodiment;

[0037] Figure 5 It is a schematic diagram of the structure of a buffer room in an embodiment.

[0038] Figure numerals: 1. Material filling pipeline; 2. Nitrogen pipeline; 3. Vacuum pipeline; 4. Filling gun; 5. Air extraction channel; 6. Nitrogen filling channel; 7. Material filling channel; 8. First dew point detection device; 9. Material barrel; 10. Chassis; 11. Second dew point detection device; 12. Closed workshop; 13. Third dew point detection device; 14. Airlock chamber; 15. Front workstation; 16. Back workstation; 17. Material barrel conveying mechanism. DETAILED DESCRIPTION

[0039] Some embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0040] The present invention will be described in detail below through specific embodiments.

[0041] In one embodiment, Figure 1-Figure 2As shown, the material filling system includes a material filling pipeline 1, a nitrogen pipeline 2, a vacuum pipeline 3 and a filling gun 4; the filling gun includes an exhaust channel 5, a nitrogen filling channel 6 and a material filling channel 7 extending along the filling direction; the exhaust channel 5 is connected with the vacuum pipeline 3, and a first dew point detection device 8 is arranged on the vacuum pipeline 3. The vacuum pipeline 3 is used to extract gas at the position of the material to be filled in the material barrel 9 on the filling station through the exhaust channel 5, and the first dew point detection device 8 is used to detect the first dew point temperature of the position of the material to be filled through the gas extracted from the exhaust channel 5; the nitrogen filling channel 6 is connected with the nitrogen pipeline 2, and the nitrogen pipeline 2 is used to fill nitrogen into the material barrel 9 through the nitrogen filling channel 6 when the first dew point temperature of the position of the material to be filled is higher than the preset temperature threshold; the material filling channel 7 is connected with the material filling pipeline 1, and the material filling pipeline 1 is used to fill the material barrel 9 with material through the material filling channel 7 when the first dew point temperature of the position of the material to be filled is equal to or less than the preset temperature threshold.

[0042] Among them, the dew point temperature is the temperature at which water vapor in the air condenses. The higher the water vapor content in the air, the higher the dew point temperature.

[0043] The material filling process of the above-mentioned material filling system can be as follows: insert the filling gun 4 into the bottom of the material barrel 9, first open the nitrogen pipeline 2, use the nitrogen pipeline 2 to fill nitrogen into the material barrel 9 through the nitrogen filling channel 6, then open the vacuum pipeline 3, use the vacuum pipeline 3 to extract part of the gas in the material barrel 9 through the exhaust channel 5, and at this time use the first dew point detection device 8 to detect the first dew point temperature of the gas in the vacuum pipeline 3. If the first dew point temperature detected by the first dew point detection device at this time is greater than the preset temperature threshold, in order to further reduce the moisture content in the material barrel, the nitrogen pipeline can continue to be used to supplement nitrogen into the material barrel through the nitrogen filling channel; if the first dew point temperature is lower than or equal to the preset temperature threshold (for example, minus 60 degrees), it means that the moisture content at the bottom of the material barrel 9 is lower than the preset standard. At this time, the nitrogen pipeline 2 and the vacuum pipeline 3 can be closed, and the material filling pipeline 1 can be opened, and the material filling pipeline 1 can be used to fill the material through the material filling channel 7. Material is added to the material barrel 9, and the filling gun 4 is moved upward at the same time. At this time, the moisture content of other parts of the material barrel 9 except the bottom may not be lower than the preset standard. If the first dew point detection device 8 detects that the first dew point temperature of the gas in the vacuum pipeline is higher than the preset temperature threshold, the material filling pipeline 1 is closed, the nitrogen pipeline 2 is opened, and nitrogen is filled into the material barrel 9 through the nitrogen filling channel 6 by using the nitrogen pipeline 2, and then the vacuum pipeline 3 is opened, and part of the gas in the material barrel 9 is extracted through the exhaust channel 5 by using the vacuum pipeline 3. At this time, the first dew point temperature of the gas in the vacuum pipeline 3 is detected by the first dew point detection device 8. This operation is repeated until the first dew point detection device 8 detects that the first dew point temperature of the gas in the vacuum pipeline 3 is lower than or equal to the preset temperature threshold. At this time, the material filling pipeline 1 is opened again, and the material filling pipeline 1 is used to fill the material barrel 9 through the material filling channel 7, and so on, until the filling of the material barrel 9 is completed.

[0044] In this embodiment, an air extraction channel 5, a nitrogen filling channel 6 and a material filling channel 7 are provided in the filling gun 4. When material filling is required, nitrogen is firstly filled into the material barrel 9 through the nitrogen filling channel 6 by using the nitrogen pipeline 2, and then a small part of gas is extracted through the air extraction channel 5 by using the vacuum pipeline 3. The first dew point detection device 8 in the vacuum pipeline 3 can perform a first dew point detection on the gas in the vacuum pipeline 3. If the first dew point temperature detected by the first dew point detection device 8 is greater than the preset temperature threshold, in order to further reduce the moisture content in the material barrel 9, nitrogen can be further supplemented into the material barrel 9 through the nitrogen filling channel 6 by using the nitrogen pipeline 2, so that the first dew point temperature detected by the first dew point detection device 8 is equal to or less than the preset temperature threshold. At this time, the material is filled into the material barrel 9 through the material filling channel 7, that is, the material filling is performed only when the moisture content in the material barrel 9 is lower than the standard, thereby ensuring that the moisture content in the material barrel 9 is lower than the preset standard.

[0045] In another embodiment, Figure 2 As shown, the air extraction channel 5 , the nitrogen filling channel 6 and the material filling channel 7 are all arranged around the axis of the filling gun 4 ; the material filling channel 7 is sleeved on the nitrogen filling channel 6 ; and the air extraction channel 5 is sleeved on the material filling channel 7 .

[0046] Optionally, the filling gun 4 is cylindrical and divided into three layers, the outermost layer and the middle layer constitute the exhaust channel 5, the middle layer and the innermost layer constitute the material filling channel 7, and the space inside the innermost layer is the nitrogen filling channel 6, that is, the material filling channel 7 is sleeved on the nitrogen filling channel 6, and the exhaust channel 5 is sleeved on the material filling channel 7.

[0047] In the above embodiment, the air extraction channel 5, the nitrogen filling channel 6 and the material filling channel 7 are in a layered relationship, ensuring that the filling gun 4 can simultaneously realize the air extraction, nitrogen filling and filling functions, while ensuring that the moisture content in the material barrel 9 is lower than the standard, and also increasing the material filling efficiency.

[0048] In another embodiment, Figure 1-Figure 2 As shown, perpendicular to the length direction of the filling gun 4, the distance from the outer wall of the nitrogen filling channel 6 to the inner wall of the material filling channel 7 is greater than the diameter of the nitrogen filling channel 6, and the distance from the outer wall of the material filling channel 7 to the inner wall of the exhaust channel 5 is less than the diameter of the nitrogen filling channel 6.

[0049] Optionally, in actual material filling, the material may be liquid or solid, and the flow rate of gas and liquid in the channel is significantly lower than that of gas. In order to quickly fill the material into the material barrel 9 when the first dew point temperature is equal to or lower than the preset temperature threshold, this embodiment sets the distance from the outer wall of the nitrogen filling channel 6 to the inner wall of the material filling channel 7 to be greater than the diameter of the nitrogen filling channel 6, and the distance from the outer wall of the material filling channel 7 to the inner wall of the exhaust channel 5 to be less than the diameter of the nitrogen filling channel 6, that is, the material filling channel 7 is the largest channel. This setting can increase the material filling efficiency to a certain extent.

[0050] In another embodiment, the filling end of the nitrogen filling channel 6 , the discharge end of the material filling channel 7 and the exhaust end of the exhaust channel 5 are sequentially staggered along the length direction of the filling gun 4 .

[0051] In the above embodiment, the nitrogen filling pipeline is arranged at the front end of the filling gun 4, ensuring that the air at the bottom of the material barrel 9 can also be replaced by nitrogen, and the exhaust channel 5 is arranged at the rear end, ensuring that the moisture content at the position where the material is to be filled in the material barrel 9 is also lower than the preset standard and preventing the material from being sucked away.

[0052] In another embodiment, Figure 1As shown, the vacuum pipeline 3 extracts gas from at least the first position and the second position in the material barrel 9 on the filling station, and the first dew point detection device 8 detects the dew point temperature of at least the first position and the second position; the first position is lower than the height of the second position from the bottom of the material barrel 9, and the second position is close to the top of the material barrel 9.

[0053] Optionally, when performing the first dew point temperature detection, the first dew point temperature detection can be performed at both the first position and the second position. The first position can be set at the bottom of the material barrel 9, and the second position can be set at the top. Performing dew point temperature detection at the two positions can better ensure that the moisture content in the material barrel 9 is lower than the preset standard compared to performing dew point detection at only one position. Furthermore, the first dew point temperature detection can also be performed at multiple positions in the material barrel 9, which can further ensure that the moisture content at each position in the material barrel 9 is lower than the preset standard.

[0054] In another embodiment, Figure 3 As shown, the material filling system also includes a chassis 10, and a filling gun 4 and a filling station are arranged in the chassis 10; a second dew point detection device 11 is arranged in the chassis 10, and the second dew point detection device 11 is used to detect the second dew point temperature in the chassis; the filling gun 4 is also used to stop filling material into the material barrel 9 when the second dew point temperature is higher than a preset temperature threshold.

[0055] Another optional working mode of the material filling system is: transport the material barrel 9 to the filling station in the chassis 10, insert the filling gun 4 into the material barrel 9 and open the nitrogen pipeline 2 and the vacuum pipeline 3 at the same time, use the vacuum pipeline 3 to extract the air in the material barrel 9 through the exhaust channel 5, and then use the nitrogen pipeline 2 to fill nitrogen into the material barrel 9 through the nitrogen filling channel 6. When the first dew point detection device 8 detects the first dew point temperature of the gas in the vacuum pipeline 3 and the second dew point detection device 11 detects the second dew point temperature in the chassis 10 is lower than or equal to the preset temperature threshold, it means that the moisture content in the material barrel 9 and the chassis 10 is lower than the preset standard. At this time, the nitrogen pipeline 2 and the vacuum pipeline 3 can be closed, and the material filling pipeline 1 can be opened to fill the material barrel 9 with material through the material filling channel 7 using the material filling pipeline 1.

[0056] In the above embodiment, not only is the moisture content in the material barrel 9 ensured to be lower than the preset standard, but the moisture content in the chassis 10 where the material barrel 9 is located is also ensured to be lower than the preset standard, which is equivalent to further ensuring that the moisture content in the material barrel 9 is lower than the preset standard.

[0057] In another embodiment, Figure 4As shown, the system also includes a closed workshop 12, and the chassis 10 is arranged in the closed workshop 12; a third dew point detection device 13 is arranged in the closed workshop 12, and the third dew point detection device 13 is used to detect the third dew point temperature in the closed workshop 12; an air filtering device is also arranged in the closed workshop 12; the air filtering device is used to filter the air in the closed workshop 12 when the third dew point temperature is higher than a preset temperature threshold.

[0058] Optionally, the chassis 10 in the above embodiment is also arranged in a closed workshop 12, and a third dew point detection device 13 is also arranged in the closed workshop 12. The third dew point temperature will always monitor the third dew point temperature in the closed workshop 12. When the third dew point temperature is higher than a preset temperature threshold, the air filtering device in the closed workshop 12 will start to filter the air in the closed workshop 12 until the third dew point temperature detected by the third dew point detection device 13 is lower than or equal to the preset temperature threshold.

[0059] In the above embodiment, a closed workshop 12 is further provided outside the chassis 10. In order to ensure that the dry air, oxygen content and water molecules in the closed workshop 12 meet the filling conditions, an air filter is also provided in the closed workshop 12, which can ensure that the third dew point temperature in the closed workshop 12 is lower than or equal to the preset temperature threshold, further ensuring that the moisture content in the material barrel 9 during filling is lower than the preset standard.

[0060] In another embodiment, the filling gun 4 is further configured to stop filling the material into the material barrel 9 when the third dew point temperature is higher than a preset temperature threshold.

[0061] When the third dew point temperature is higher than the preset temperature threshold, the filling gun 4 will stop filling the material into the material barrel 9, further ensuring that the moisture content in the material barrel 9 is lower than the preset standard during filling.

[0062] In another embodiment, Figure 4 As shown, an airlock chamber 14 is also provided outside the closed workshop 12; the airlock chamber 14 is arranged at the front station 15 and the back station 16 of the filling station; the system also includes a material barrel conveying mechanism 17, the material barrel conveying mechanism 17 is used to receive empty material barrels 9 and convey the material barrels 9 through the front station 15 to the filling station, and is also used to convey the material barrels 9 that have completed filling at the filling station to the back station 16; the airlock chamber 14 is used to filter the air entering the closed workshop 12.

[0063] Another optional working mode of the material filling system is: the material barrel conveying mechanism 17 conveys the material barrel 9 from the front station 15 in the airlock chamber 14 to the filling station in the closed workshop 12 for material filling. After filling, the material barrel conveying mechanism 17 conveys the filled material barrel 9 from the filling station in the closed workshop 12 to the back station 16 in the airlock chamber 14. The airlock chamber 14 can filter the air of the front station 15 and the back station 16 of the filling station to reduce the air entering the closed workshop 12, ensuring that the material barrel 9 is in an environment with a moisture content lower than the preset standard during the entire process of conveying the material barrel 9 by the material barrel conveying mechanism 17, further ensuring that the moisture content in the material barrel 9 is lower than the preset standard during material filling.

[0064] In another embodiment, Figure 5 As shown, a buffer room 18 is also provided outside the closed workshop 12; a monitor and a buffer door are provided on the buffer room 18, and the buffer door is provided between the closed workshop 12 and the buffer room 18; the monitor is used to monitor the third dew point temperature in the closed workshop 12; the buffer door is used to prohibit opening when the third dew point temperature is higher than a preset temperature threshold.

[0065] Optionally, during the actual filling process, the staff also needs to enter the closed workshop 12 to perform operations. In order to prevent the entry and exit of personnel from causing excessive moisture content in the closed workshop 12, a buffer room 18 is also set up outside the closed workshop 12, and a buffer door is set between the closed workshop 12 and the buffer room 18. A monitor is set on the buffer room 18. The monitor can always monitor the third dew point temperature in the closed workshop 12. If the third dew point temperature is higher than the preset temperature threshold, the buffer door cannot be opened and the staff cannot enter the closed workshop 12. Only when the third dew point temperature is equal to or lower than the preset temperature threshold, the buffer door is unlocked, and the staff can enter the closed workshop 12 at this time. This setting further ensures that the third dew point temperature is lower than the preset temperature threshold, thereby ensuring that the moisture content in the material barrel 9 is lower than the preset standard.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" 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 invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0067] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0068] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A material filling system, characterized in that: The material filling system includes a material filling pipeline, a nitrogen pipeline, a vacuum pipeline and a filling gun; The filling gun comprises an air extraction channel, a nitrogen filling channel and a material filling channel extending along the filling direction; The air extraction channel is connected to the vacuum extraction pipeline, and a first dew point detection device is arranged on the vacuum extraction pipeline. The vacuum extraction pipeline is used to extract gas at the position of the material to be filled in the material barrel on the filling station through the air extraction channel, and the first dew point detection device is used to detect the first dew point temperature of the position of the material to be filled through the gas extracted from the air extraction channel; The nitrogen filling channel is in communication with the nitrogen pipeline, and the nitrogen pipeline is used to fill nitrogen into the material barrel through the nitrogen filling channel when the first dew point temperature at the position of the material to be filled is higher than a preset temperature threshold; The material filling channel is in communication with the material filling pipeline, and the material filling pipeline is used to fill the material barrel with material through the material filling channel when the first dew point temperature of the position of the material to be filled is equal to or less than the preset temperature threshold.

2. The material filling system according to claim 1, characterized in that: The air extraction channel, nitrogen filling channel and material filling channel are all arranged around the axis of the filling gun; The material filling channel is sleeved on the nitrogen filling channel; and the air extraction channel is sleeved on the material filling channel.

3. The material filling system according to claim 2, characterized in that: Perpendicular to the length direction of the filling gun, the distance from the outer wall of the nitrogen filling channel to the inner wall of the material filling channel is greater than the diameter of the nitrogen filling channel, and the distance from the outer wall of the material filling channel to the inner wall of the exhaust channel is less than the diameter of the nitrogen filling channel.

4. The material filling system according to claim 2, characterized in that: The charging end of the nitrogen charging channel, the discharging end of the material filling channel and the exhaust end of the exhaust channel are sequentially staggered along the length direction of the filling gun.

5. The material filling system according to claim 1, characterized in that: The vacuum pipeline at least extracts gas from a first position and a second position in the material barrel at the filling station, and the first dew point detection device at least detects the dew point temperature of the first position and the second position; The first position is lower than the height of the second position from the bottom of the material barrel, and the second position is close to the top of the material barrel.

6. The material filling system according to claim 1, characterized in that: The material filling system also includes a chassis, and the filling gun and the filling station are arranged in the chassis; A second dew point detection device is provided in the chassis, and the second dew point detection device is used to detect a second dew point temperature in the chassis; The filling gun is also used to stop filling the material into the material barrel when the second dew point temperature is higher than the preset temperature threshold.

7. The material filling system according to claim 6, characterized in that: The system further comprises a closed workshop, wherein the chassis is arranged in the closed workshop; A third dew point detection device is provided in the closed workshop, and the third dew point detection device is used to detect a third dew point temperature in the closed workshop; An air filter device is also provided in the closed workshop; the air filter device is used to filter the air in the closed workshop when the third dew point temperature is higher than the preset temperature threshold.

8. The material filling system according to claim 7, characterized in that: The filling gun is further used to stop filling the material into the material barrel when the third dew point temperature is higher than the preset temperature threshold.

9. The material filling system according to claim 8, characterized in that: An airlock is also provided outside the enclosed workshop; The airlock chamber is arranged at the front station and the back station of the filling station; the system also includes a material barrel conveying mechanism, which is used to receive empty material barrels and convey the material barrels through the front station to the filling station, and is also used to convey the material barrels that have completed filling at the filling station to the back station; the airlock chamber is used to filter the air entering the closed workshop.

10. The material filling system according to claim 9, characterized in that: A buffer room is also provided outside the enclosed workshop; The buffer room is provided with a monitor and a buffer door, and the buffer door is provided between the enclosed workshop and the buffer room; The monitor is used to monitor the third dew point temperature in the closed workshop; The buffer door is used to prohibit opening when the third dew point temperature is higher than the preset temperature threshold.

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