Automatic filling production line for small refrigerant tanks

Abstract

The invention relates to the technical field of filling equipment, and provides an automatic refrigerant small tank filling production line which comprises a plurality of production function modules, a linear chain plate conveying unit, a turning chain plate conveying unit and a spiral conveying roller transition unit. Each production function module comprises a base platform, a working unit and a module chain plate conveying unit, the working unit and the module chain plate conveying unit are arranged on the base platform, and the module chain plate conveying unit is arranged under the working unit and used for conveying a small refrigerant tank into the working range of the working unit and conveying the small refrigerant tank out of the working unit; the linear chain plate conveying unit is used for linearly conveying small refrigerant tanks and is connected with different production function modules; and the turning chain plate conveying unit is used for changing the conveying direction of the refrigerant small tank and is connected with different production function modules. The refrigerant small tank automatic production line has the advantages that the production line is configured in a modularized mode, and materials are conveyed smoothly.

Description

Technical Field

[0001] This invention relates to the field of filling equipment technology, and in particular to an automated filling production line for refrigerant small tanks. Background Technology

[0002] Refrigerant canisters are small pressure vessels used for storing and filling refrigerants, and are widely used in the maintenance and charging of refrigeration equipment such as air conditioners and refrigerators. With the rapid development of the refrigeration industry, the demand for refrigerant canisters is increasing, and higher requirements are being placed on the efficiency, accuracy, and safety of their filling production.

[0003] Traditional refrigerant can filling production lines typically employ a single, linear layout, with each station (such as capping, filling, inspection, and coding) arranged sequentially along a straight conveyor belt. While this layout is simple in structure, it occupies a large area and requires significant factory space. When adjustments to the production cycle or the addition of new functional modules are needed, the entire production line often requires modification, resulting in poor flexibility and high modification costs.

[0004] In recent years, modular filling production line designs have emerged, which improve layout flexibility to some extent by modularizing various production functions and connecting them using conveyor lines. However, existing technologies often suffer from uneven transitions at the connection points between modules, especially at the junctions of different conveying units (such as straight conveying and turning conveying). This can easily cause refrigerant tanks (especially tall tanks with unstable centers of gravity) to tip over or get stuck during transport, affecting the stable operation of the production line and filling quality. Summary of the Invention

[0005] The purpose of this invention is to provide an automated refrigerant can filling production line to solve or alleviate the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: This invention provides an automated refrigerant can filling production line, comprising: Multiple production function modules, each of which includes a base platform and a working unit and a module chain conveyor unit set on the base platform. The module chain conveyor unit is located directly below the working unit and is used to transport refrigerant tanks into the working range of the working unit and to deliver refrigerant tanks out of the working unit. A linear chain conveyor unit is used to linearly transport small refrigerant tanks and connect different production function modules. A turning chain conveyor unit is used to change the conveying direction of the refrigerant tanks and connect different production function modules. The spiral conveyor roller transition unit is located between the straight chain plate conveyor unit and the modular chain plate conveyor unit, as well as between the turning chain plate conveyor unit and the modular chain plate conveyor unit. It is used to smoothly transition the transfer of refrigerant tanks between different chain plates and prevent the refrigerant tanks from tipping over when changing different chain plates. Multiple production function modules can achieve various production line layout combinations through the connection of the straight chain conveyor unit and the turning chain conveyor unit.

[0007] Through the above technical solutions, this production line adopts a modular design, connecting various independent production functional modules through standardized straight and turning conveyor units. It can be flexibly combined into various layouts such as straight lines, L-shapes, U-shapes, or S-shapes according to factory space and production process requirements, greatly improving the adaptability and scalability of the production line. By introducing spiral conveyor roller transition units at the connection points of the conveyor units, the problem of unstable tank transitions caused by height differences, gaps, or speed differences between different chain plates can be effectively solved, ensuring smooth and continuous tank transport and significantly improving the operational stability and reliability of the production line.

[0008] Optionally, the linear chain conveyor unit includes a first conveyor chain machine and first linear guide plates disposed on both sides of the first conveyor chain machine in the width direction; The modular chain conveyor unit includes a second conveyor chain machine and second linear guide plates disposed on both sides of the width direction of the second conveyor chain machine. The turning chain conveyor unit includes a turning chain conveyor and a first arc-shaped guide plate and a second arc-shaped guide plate disposed on both sides of the turning chain conveyor in the width direction. The first linear guide plate, the second linear guide plate, and the first arc-shaped guide plate or the second arc-shaped guide plate located on the same side have notches at their corresponding length directions to accommodate the spiral conveyor roller transition unit.

[0009] Optionally, the spiral conveyor roller transition unit includes: A spiral roller, wherein a spiral guide groove for conveying a small refrigerant can is provided on the outer circumferential surface of the spiral roller; Two rotating frames are located at both ends of the spiral roller, and both ends of the spiral roller are rotatably connected to the two rotating frames respectively. A drive motor is connected to one end of the spiral roller; A locking assembly includes a locking slot and a locking bolt. Each rotating frame is connected to a locking slot, which has a U-shaped cross-section. The locking slot can be engaged with the first linear guide plate, the second linear guide plate, the first arc guide plate, or the second arc guide plate. A locking screw hole is provided on the locking slot, and a locking bolt is provided in the locking screw hole. The locking bolt is threaded onto the locking slot and presses against the first linear guide plate, the second linear guide plate, the first arc guide plate, or the second arc guide plate to achieve locking and fixing.

[0010] The actively rotating spiral roller not only provides physical support and transition, but its spiral guide grooves also precisely guide the tank and actively apply a driving force matched to the main line speed, ensuring that the tank passes through the joint with a stable posture and speed, completely solving the problem of tank tipping or piling up at this point. The locking assembly allows this transition unit to be quickly and securely installed on various guide plates, making it highly versatile.

[0011] Optionally, the working unit includes any one of a cover unit, a liquid filling unit, a detection unit, and a laser marking unit. The production function module is provided with four units, each corresponding to a different working unit.

[0012] Optionally, the production line layout combinations include a straight line layout, an L-shaped layout, a U-shaped layout, and an S-shaped layout.

[0013] Optionally, guide rollers are vertically rotatably installed on the inner walls of both the first and second arc-shaped guide plates, which are used to roll into contact with the side wall of the tank when the refrigerant tank turns, thereby reducing frictional resistance and preventing the tank from getting stuck.

[0014] Guide rollers are added to the arc-shaped guide plate of the turning chain conveyor unit. When the tank passes through the curve, the side wall and the guide rollers experience rolling friction instead of sliding friction. This greatly reduces friction and prevents the tank from slowing down, jamming, or even tipping over due to excessive friction, ensuring that the tank can pass through the curve smoothly and stably.

[0015] Optionally, the spacing between the two first linear guide plates is the same as the spacing between the two second linear guide plates, and the spacing between the two first linear guide plates is the same as the spacing between the first arc-shaped guide plate and the second arc-shaped guide plate.

[0016] Optionally, when the linear chain conveyor unit and the modular chain conveyor unit are connected, the gap width between the conveyor chains is no greater than half the diameter of the refrigerant tank; when the turning chain conveyor unit and the modular chain conveyor unit are connected, the gap width between the conveyor chains is no greater than half the diameter of the refrigerant tank.

[0017] Beneficial effects: This invention employs a modular design, connecting various independent production functional modules through standardized straight and turning conveyor units. These modules can be flexibly combined into various layouts such as straight lines, L-shapes, U-shapes, or S-shapes according to factory space and production process requirements, greatly improving the adaptability and scalability of the production line. By introducing spiral conveyor roller transition units at the connection points of the conveyor units, the problem of unstable tank transitions caused by height differences, gaps, or speed differences between different chain plates can be effectively solved, ensuring smooth and continuous tank transport and significantly improving the operational stability and reliability of the production line. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. Wherein: Figure 1 A structural front view of an automated refrigerant can filling production line according to some embodiments of the present invention; Figure 2 A top view of an automated refrigerant can filling production line according to some embodiments of the present invention; Figure 3 A front view of the structure of a spiral conveyor roller transition unit in an automated refrigerant can filling production line according to some embodiments of the present invention; Figure 4 The image shows a front view of the structure of a spiral conveyor roller transition unit in an automated refrigerant can filling production line according to another embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Production Functional Module; 11. Base Platform; 12. Working Unit; 13. Module Chain Plate Conveying Unit; 131. Second Linear Guide Plate; 2. Linear Chain Plate Conveying Unit; 21. First Linear Guide Plate; 3. Turning Chain Plate Conveying Unit; 31. First Arc-Shaped Guide Plate; 32. Second Arc-Shaped Guide Plate; 33. Guide Roller; 4. Spiral Conveying Roller Transition Unit; 41. Spiral Roller; 42. Rotating Frame; 43. Drive Motor; 44. Locking Slot; 45. Locking Bolt. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation and not by way of limitation. In fact, those skilled in the art will understand that modifications and variations can be made to the present invention without departing from the scope or spirit of the invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention should fall within the scope of protection of the embodiments of the present invention.

[0021] In one embodiment of this application, such as Figures 1-3 As shown, an automated refrigerant can filling production line includes multiple production functional modules 1, a linear chain conveyor unit 2, a turning chain conveyor unit 3, and a spiral conveyor roller transition unit 4. Multiple production functional modules 1 are provided. Each production functional module 1 includes a base platform 11, a working unit 12, and a module chain conveyor unit 13 mounted on the base platform 11. The base platform 11 is constructed of welded steel structure and has adjustable anchor bolts at the bottom for adjusting the level of the entire module. The module chain conveyor unit 13 is located directly below the working unit 12 and is used to transport refrigerant tanks into and out of the working area of ​​the working unit 12. The working unit 12 includes any one of a top cover unit, a liquid filling unit, a detection unit, and a laser marking unit. There are four production functional modules, each corresponding to one of the four different working units 12.

[0022] The modular chain conveyor unit 13 includes a second conveyor chain conveyor and second linear guide plates 131 disposed on both sides of the second conveyor chain conveyor in the width direction. The second conveyor chain conveyor uses stainless steel chain plates with anti-slip textures on the surface to increase friction with the bottom of the refrigerant tank and prevent the tank from slipping during transport. The second conveyor chain conveyor is a conventional chain conveyor structure found in existing production lines. The second linear guide plates 131 are made of wear-resistant nylon material with a smooth inner wall, used to linearly guide the movement of the refrigerant tank.

[0023] The linear chain conveyor unit 2 is used to linearly transport small refrigerant tanks and connect different production function modules 1; the linear chain conveyor unit 2 includes a first conveyor chain machine and a first linear guide plate 21 set on both sides of the width direction of the first conveyor chain machine; the first conveyor chain machine is a conventional chain machine structure in existing production lines; the material and structure of the first linear guide plate 21 are the same as those of the second linear guide plate 131 to ensure the consistency of guidance.

[0024] The turning chain conveyor unit 3 is used to change the conveying direction of the refrigerant tank and connect different production function modules 1; the turning chain conveyor unit 3 includes a turning conveyor chain machine and a first arc-shaped guide plate 31 and a second arc-shaped guide plate 32 set on both sides of the width direction of the turning chain conveyor; the turning conveyor chain machine adopts a fan-shaped chain plate structure, and the chain plate gradually changes the running direction at the bend.

[0025] The first linear guide plate 21, the second linear guide plate 131, and the first arc-shaped guide plate 31 or the second arc-shaped guide plate 32, located on the same side, have notches at their corresponding length directions to accommodate the spiral conveyor roller transition unit 4. These notches prevent the spiral conveyor roller transition unit 4 from being directly placed inside the conveyor line, thus avoiding excessive width occupation and impacting the transport of the refrigerant tank. The distance between the two first linear guide plates 21 is the same as the distance between the two second linear guide plates 131, and the distance between the two first linear guide plates 21 is the same as the distance between the first arc-shaped guide plate 31 and the second arc-shaped guide plate 32. This arrangement ensures that the guide channel width of all conveying units remains consistent, and that the guiding constraints on both sides of the tank remain continuous and without abrupt changes when switching between different conveying units, further guaranteeing the stability of the transport. The spacing is set slightly larger than the maximum outer diameter of the refrigerant tank (usually 2-5 mm larger) to facilitate smooth passage of the tank without excessive swaying. This arrangement facilitates the coordination between the linear chain conveyor unit 2, the turning chain conveyor unit 3, and the modular chain conveyor unit 13.

[0026] When the linear chain conveyor unit 2 and the modular chain conveyor unit 13 are connected, the gap between the conveyor chains is no greater than half the diameter of the refrigerant tank. When the turning chain conveyor unit 3 and the modular chain conveyor unit 13 are connected, the gap between the conveyor chains is no greater than half the diameter of the refrigerant tank. This setting ensures that the bottom of the tank has sufficient support area at all times, effectively preventing the tank from falling or tilting from the gap between the chains.

[0027] The spiral conveyor roller transition unit 4 is disposed between the straight chain conveyor unit 2 and the modular chain conveyor unit 13, and between the turning chain conveyor unit 3 and the modular chain conveyor unit 13. It is used to smoothly transition the transfer of refrigerant tanks between different chain plates and prevent the refrigerant tanks from tipping over when changing different chain plates. The spiral conveyor roller transition unit 4 includes a spiral roller 41, two rotating frames 42, a locking assembly, and a drive motor 43. The outer circumference of the spiral roller 41 is provided with a spiral guide groove for transferring the refrigerant tanks. The two rotating frames 42 are located at both ends of the spiral roller 41, and the two ends of the spiral roller 41 are rotatably connected to the two rotating frames 42 respectively. The drive motor 43 is connected to one end of the spiral roller 41. The locking assembly includes a locking slot 44 and a locking bolt 45. Each rotating frame 42 has a locking slot 44 connected to its lower part. The openings of the locking slots 44 are simultaneously set downwards. The cross-section of the locking slot 44 is U-shaped. The locking slot 44 can be locked onto the first linear guide plate 21, the second linear guide plate 131, the first arc guide plate 31, or the second arc guide plate 32. The locking slot 44 has a locking screw hole, and a locking bolt 45 is installed in the locking screw hole. The locking bolt 45 is threaded onto the locking slot 44 and presses against the first linear guide plate 21, the second linear guide plate 131, the first arc guide plate 31, or the second arc guide plate 32 to achieve locking and fixing.

[0028] Multiple production function modules 1 are connected by straight chain conveyor units 2 and curved chain conveyor units 3 to achieve various production line layout combinations. These production line layout combinations include straight-line, L-shaped, U-shaped, and S-shaped layouts. The layout combination of the production line can be set according to the actual production site area and limitations.

[0029] The working process and principle of the above structure are as follows: Before starting the production line, based on the factory space and production needs, a straight, L-shaped, U-shaped, or S-shaped layout is selected, connecting multiple production functional modules 1 via straight chain conveyor units 2 and curved chain conveyor units 3. A spiral conveyor roller transition unit 4 is installed at each connection point, and fixed to the adjacent guide plate using locking slots 44 and locking bolts 45. The height of the spiral roller 41 is adjusted so that its conveying plane is flush with the conveying planes of the chain conveyor units on both sides. Simultaneously, the speed of the drive motor 43 is adjusted to ensure that the linear speed of the spiral roller 41 is consistent with the linear speed of the chain conveyor units on both sides.

[0030] During production line operation, the refrigerant canisters first enter the modular chain conveyor unit 13 of the cover module, where the cover unit automatically covers (pre-seals) the canisters. Subsequently, the canisters are conveyed to either the straight chain conveyor unit 2 or the curved chain conveyor unit 3, and then smoothly transition through the spiral conveyor roller transition unit 4 to the modular chain conveyor unit 13 of the filling module. After the filling unit precisely fills the canisters, they again pass through the conveyor unit and transition unit to enter the testing module for airtightness and other tests. Finally, the canisters enter the laser marking module to mark information such as the production date and batch number.

[0031] Throughout the conveying process, the straight guide plates on both sides of the straight chain conveyor unit 2 and the modular chain conveyor unit 13 ensure that the tank moves stably along a straight line; the arc-shaped guide plate and guide roller 33 of the turning chain conveyor unit 3 ensure that the tank passes smoothly through the bend; and the spiral conveyor roller transition unit 4 actively guides the tank at the connection point, so that it can smoothly cross the gap between different chain plates, effectively preventing tipping and jamming.

[0032] Through the above technical solution, this production line adopts a modular design of multiple production functional modules 1. Standardized straight-line chain conveyor units 2 and turning chain conveyor units 3 connect the various independent production functional modules 1. These modules can be flexibly combined into various layouts such as straight lines, L-shapes, U-shapes, or S-shapes according to factory space and production process requirements, greatly improving the adaptability and scalability of the production line. By introducing spiral conveyor roller transition units 4 at the connection points between the straight-line chain conveyor units 2, turning chain conveyor units 3, and modular chain conveyor units 13, the problem of unstable tank transition caused by height differences, gaps, or speed differences between different chain plates can be effectively solved, ensuring smooth and continuous tank transmission and significantly improving the operational stability and reliability of the production line. The actively rotating spiral roller 41 not only provides physical support and transition, but its spiral guide grooves also precisely guide the tank and actively apply a driving force matched to the main line speed, ensuring that the tank passes through the connection point with a stable posture and speed, completely solving the problem of tank tipping or accumulation at this point. The locking assembly allows the transition unit to be quickly and securely installed on various guide plates, making it highly versatile.

[0033] In another embodiment of this application, based on other embodiments, such as Figure 2 As shown, guide rollers 33 are vertically rotatably installed on the inner walls of the first arc-shaped guide plate 31 and the second arc-shaped guide plate 32. These rollers are used to roll and contact the side wall of the tank when the refrigerant tank turns, thereby reducing frictional resistance and preventing the tank from getting stuck.

[0034] Guide rollers 33 are added to the arc-shaped guide plate of the turning chain conveyor unit 3. When the tank passes through the curve, the side wall of the tank and the guide rollers 33 experience rolling friction instead of sliding friction. This greatly reduces the friction force and prevents the tank from slowing down, jamming, or even tipping over due to excessive friction, ensuring that the tank can pass through the curve smoothly and stably.

[0035] In another embodiment of this application, the difference from other embodiments is that, as Figure 4 As shown, the spiral conveyor roller transition unit 4 includes a spiral roller 41, two rotating frames 42, a locking assembly, and a drive motor 43. A spiral guide groove for conveying a small refrigerant can is provided on the outer circumference of the spiral roller 41. The two rotating frames 42 are located at both ends of the spiral roller 41, and both ends of the spiral roller 41 are rotatably connected to the two rotating frames 42. The drive motor 43 is connected to one end of the spiral roller 41. The locking assembly includes a locking slot 44 and a locking bolt 45. A locking slot 44 is connected to the lower part of each rotating frame 42, and the locking slot 44 is horizontally... The cross-section is U-shaped, and the openings of the two locking slots 44 are set horizontally outward. The locking slots 44 can be locked onto the first linear guide plate 21, the second linear guide plate 131, the first arc guide plate 31, or the second arc guide plate 32. The locking slots 44 are provided with locking screw holes, and locking bolts 45 are provided in the locking screw holes. The locking bolts 45 are threaded onto the locking slots 44 and press against the first linear guide plate 21, the second linear guide plate 131, the first arc guide plate 31, or the second arc guide plate 32 to achieve locking and fixing.

[0036] The actively rotating spiral roller 41 not only provides physical support and transition, but its spiral guide grooves also precisely guide the tank and actively apply a driving force matched to the main line speed, ensuring that the tank passes through the joint with a stable posture and speed, completely solving the problem of tank tipping or piling up at this point. The locking assembly allows this transition unit to be quickly and securely installed on various guide plates, making it highly versatile.

[0037] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automated refrigerant can filling production line, characterized in that, include: Multiple production function modules, each of which includes a base platform and a working unit and a module chain conveyor unit set on the base platform. The module chain conveyor unit is located directly below the working unit and is used to transport refrigerant tanks into the working range of the working unit and to deliver refrigerant tanks out of the working unit. A linear chain conveyor unit is used to linearly transport small refrigerant tanks and connect different production function modules. A turning chain conveyor unit is used to change the conveying direction of the refrigerant tanks and connect different production function modules. The spiral conveyor roller transition unit is located between the straight chain plate conveyor unit and the modular chain plate conveyor unit, as well as between the turning chain plate conveyor unit and the modular chain plate conveyor unit. It is used to smoothly transition the transfer of refrigerant tanks between different chain plates and prevent the refrigerant tanks from tipping over when changing different chain plates. Multiple production function modules can achieve various production line layout combinations through the connection of the straight chain conveyor unit and the turning chain conveyor unit.

2. The automated refrigerant can filling production line according to claim 1, characterized in that, The linear chain conveyor unit includes a first conveyor chain machine and first linear guide plates disposed on both sides of the width direction of the first conveyor chain machine. The modular chain conveyor unit includes a second conveyor chain machine and second linear guide plates disposed on both sides of the width direction of the second conveyor chain machine. The turning chain conveyor unit includes a turning chain conveyor and a first arc-shaped guide plate and a second arc-shaped guide plate disposed on both sides of the turning chain conveyor in the width direction. The first linear guide plate, the second linear guide plate, and the first arc-shaped guide plate or the second arc-shaped guide plate located on the same side have notches at their corresponding length directions to accommodate the spiral conveyor roller transition unit.

3. The automated refrigerant can filling production line according to claim 2, characterized in that, The spiral conveyor roller transition unit includes: A spiral roller, wherein a spiral guide groove for conveying a small refrigerant can is provided on the outer circumferential surface of the spiral roller; Two rotating frames are located at both ends of the spiral roller, and both ends of the spiral roller are rotatably connected to the two rotating frames respectively. A drive motor is connected to one end of the spiral roller; A locking assembly includes a locking slot and a locking bolt. Each rotating frame is connected to a locking slot, which has a U-shaped cross-section. The locking slot can be engaged with the first linear guide plate, the second linear guide plate, the first arc guide plate, or the second arc guide plate. A locking screw hole is provided on the locking slot, and a locking bolt is provided in the locking screw hole. The locking bolt is threaded onto the locking slot and presses against the first linear guide plate, the second linear guide plate, the first arc guide plate, or the second arc guide plate to achieve locking and fixing.

4. The automated refrigerant can filling production line according to claim 1, characterized in that, The working unit includes any one of the following: a cover unit, a liquid filling unit, a detection unit, and a laser marking unit. The production function module is provided with four units, each corresponding to a different working unit.

5. The automated refrigerant can filling production line according to claim 2, characterized in that, The production line layout combinations include linear, L-shaped, U-shaped, and S-shaped layouts.

6. The automated refrigerant can filling production line according to claim 5, characterized in that, The inner walls of both the first and second arc-shaped guide plates are vertically rotatably equipped with guide rollers, which are used to make rolling contact with the side wall of the tank when the refrigerant tank turns, thereby reducing frictional resistance and preventing the tank from getting stuck.

7. The automated refrigerant can filling production line according to claim 2, characterized in that, The spacing between the two first linear guide plates is the same as the spacing between the two second linear guide plates, and the spacing between the two first linear guide plates is the same as the spacing between the first arc-shaped guide plate and the second arc-shaped guide plate.

8. The automated refrigerant can filling production line according to claim 5, characterized in that, When the linear chain conveyor unit and the modular chain conveyor unit are connected, the gap between the conveyor chains shall not exceed half the diameter of the refrigerant tank; when the turning chain conveyor unit and the modular chain conveyor unit are connected, the gap between the conveyor chains shall not exceed half the diameter of the refrigerant tank.

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