An automatic cover-dropping device

Abstract

This application discloses an automatic cap-removing device, comprising: a conveyor belt for conveying caps; a cap storage device including a cap storage cylinder and a separating member disposed at the bottom of the cap storage cylinder, the separating member having a groove for clamping the edge of the cap to restrict its free fall; and a cap-removing device disposed between the conveyor belt and the cap storage device for removing the bottommost cap from the cap storage device and placing it onto the conveyor belt. The groove design on the separating member effectively restricts the free fall of the cap, ensuring that only one cap reaches the cap-removing position at a time, thereby stably achieving single cap separation. This avoids the problem in existing technologies where two or more caps are removed and placed onto the conveyor line simultaneously, greatly improving the accuracy and stability of cap separation and providing a reliable guarantee for the subsequent cap-closing process.

Description

Technical Field

[0001] This application relates to the technical field of automatic packaging equipment, and more particularly to an automatic cap-feeding device. Background Technology

[0002] Against the backdrop of rapid development in modern industry, automated packaging production lines have been widely used in numerous industries such as food, beverage, pharmaceuticals, and daily chemicals due to their advantages of high efficiency, precision, and continuous operation. Automated packaging production lines not only significantly improve production efficiency and reduce labor costs, but also effectively ensure the quality and consistency of product packaging, meeting the market's demand for large-scale, high-quality product supply.

[0003] In the packaging process of many products, the capping step is crucial, directly affecting the product's airtightness, hygiene, and appearance integrity. Taking yogurt packaging as an example, yogurt, as a popular dairy product, has a huge market demand and a considerable production scale. To ensure the quality of yogurt during transportation, storage, and sales, it is necessary to equip it with suitable caps and achieve precise capping for each product.

[0004] In the capping process of automated packaging production lines, automatic cap unloading equipment plays a crucial role. Its main function is to separate caps that are originally stacked together into individual pieces and accurately place them one by one onto the conveyor line so that subsequent capping operations can proceed smoothly. However, some existing automatic cap unloading equipment on the market has revealed some problems that urgently need to be addressed during actual operation. The most prominent problem is the difficulty in reliably separating caps individually; in some cases, two or even more caps may be removed and placed onto the conveyor line at the same time, resulting in anomalies. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide an automatic cover-down device that can solve the above-mentioned problems existing in the prior art.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] An automatic cover-removing device, comprising:

[0008] Conveyor belt, used to transport lids;

[0009] A storage cap device includes a storage cap cylinder and a separating member disposed at the bottom of the storage cap cylinder, the separating member being provided with a groove for locking the edge of the cap to restrict the cap from falling freely;

[0010] A cap removal device is disposed between the conveyor belt and the cap storage device, and is used to remove the bottommost cap in the cap storage device downwards and place it on the conveyor belt.

[0011] Optionally, the lid storage device has a lid storage channel formed inside for receiving the lid, and a plurality of the separating elements are arranged around the lid storage channel.

[0012] Optionally, the storage cover device includes a mounting plate, the mounting plate having a through hole corresponding to the storage cover channel, the storage cover cylinder being mounted above the mounting plate, and the separator being mounted below the mounting plate.

[0013] Optionally, the mounting plate is provided with a plurality of mounting holes arranged circumferentially around the through hole, and the bottom of the storage cover cylinder is provided with threaded holes corresponding to the mounting holes one by one. The mounting bolt passes through the separator and the mounting hole from bottom to top and connects to the threaded hole, thereby fixing the storage cover cylinder and the separator to the mounting plate.

[0014] Optionally, the storage cover cylinder includes several uprights arranged around the circumference of the through hole, and the bottom end of the uprights is provided with the threaded hole.

[0015] Optionally, the mounting plate is provided with a plurality of through holes along the conveying direction of the conveyor belt, and each through hole corresponds to the installation of a set of storage cap cylinders and the separator.

[0016] Optionally, along the conveying direction of the conveyor belt, a mounting hole is provided between any two adjacent through holes, so that two adjacent storage cover channels share a separator.

[0017] Optionally, the slot provided on the separator is a threaded groove.

[0018] Optionally, the cap removal device includes a rotary drive, a rotary shaft, and a suction cup. The rotary shaft is arranged along a conveying direction parallel to the conveyor belt. The rotary drive is connected to the end of the rotary shaft to drive the rotary shaft to rotate. The suction cup is mounted on the rotary shaft to adsorb the cap.

[0019] Optionally, the lid-removing device further includes a lifting drive component connected to the rotating shaft to drive the rotating shaft to rise and fall, so that the suction cup can lift and lower to remove and place the lid.

[0020] The beneficial effects of this application are as follows: Based on the automatic cap-removing device provided by this utility model, the design of the slot on the separating component effectively restricts the free fall of the cap, ensuring that only one cap reaches the cap-removing position at a time. This achieves stable individual cap separation, avoiding the problem in existing technologies where two or more caps are removed and placed on the conveyor line at once. This greatly improves the accuracy and stability of cap separation, providing a reliable guarantee for the subsequent cap-closing process. Because the caps can be stably and accurately separated and placed onto the conveyor belt individually, the cap spacing on the conveyor line is uniform, allowing the cap-closing equipment to perform accurate and efficient cap-closing operations, reducing cap-closing failures and substandard product packaging, and improving production efficiency. At the same time, the stable production process also ensures the consistency of product packaging quality, improving the overall quality of the product. Attached Figure Description

[0021] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the automatic cover-lowering device described in an embodiment of this application;

[0023] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0024] Figure 3 This is a schematic diagram of the mounting plate described in an embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the cap removal device described in an embodiment of this application.

[0026] In the picture:

[0027] 1. Conveyor belt; 2. Storage cover device; 21. Mounting plate; 211. Through hole; 212. Mounting hole; 22. Storage cover cylinder; 221. Upright pole; 23. Separator; 24. Mounting bolt; 3. Cover removal device; 31. Rotating shaft; 32. Suction cup; 33. Rotation drive component; 34. Lifting drive component; 4. Cover; 5. Frame. Detailed Implementation

[0028] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] Against the backdrop of rapid development in modern industry, automated packaging production lines have been widely used in numerous industries such as food, beverage, pharmaceuticals, and daily chemicals due to their advantages of high efficiency, precision, and continuous operation. Automated packaging production lines not only significantly improve production efficiency and reduce labor costs, but also effectively ensure the quality and consistency of product packaging, meeting the market's demand for large-scale, high-quality product supply.

[0032] In the packaging process of many products, the capping step is crucial, directly affecting the product's airtightness, hygiene, and appearance integrity. Taking yogurt packaging as an example, yogurt, as a popular dairy product, has a huge market demand and a considerable production scale. To ensure the quality of yogurt during transportation, storage, and sales, it is necessary to equip it with suitable caps and achieve precise capping for each product.

[0033] In the capping process of automated packaging production lines, automatic cap unloading equipment plays a crucial role. Its main function is to separate caps that are originally stacked together into individual pieces and accurately place them one by one onto the conveyor line so that subsequent capping operations can proceed smoothly. However, some existing automatic cap unloading equipment on the market has revealed some problems that urgently need to be addressed during actual operation. The most prominent problem is the difficulty in reliably separating caps individually; in some cases, two or even more caps may be removed and placed onto the conveyor line at the same time, resulting in anomalies.

[0034] To overcome the above technical problems, refer to Figures 1-2 This application provides an automatic cap-dispensing device, including a frame 5, on which a conveyor belt 1, a cap storage device 2, and a cap-retrieving device 3 are mounted. Specifically:

[0035] The conveyor belt 1 is used to transport the lid 4. The conveyor belt 1 is a key component in the automatic lid-removing equipment for transporting the lid 4. It is responsible for transporting the separated individual lids 4 from the lid-removing position to the subsequent lid-closing process or other processing positions. It plays a connecting and transmission role in the whole equipment, ensuring that the lids 4 can move in an orderly manner according to the predetermined process.

[0036] The cap storage device 2 includes a cap storage cylinder 22 and a separating component 23 disposed at the bottom of the cap storage cylinder 22. The separating component 23 is provided with a slot for clamping the edge of the cap 4 to restrict the cap 4 from falling freely. The cap storage cylinder 22 is used to store stacks of caps 4, providing a stable storage space for the equipment and ensuring that there is a sufficient supply of caps 4 during equipment operation, avoiding production interruptions due to insufficient supply of caps 4. The separating component 23 is located at the bottom of the cap storage cylinder 22, and the slot provided on it is the core structure of the device. The purpose of the slot is to clamp the edge of the cap 4 and restrict the cap 4 from falling freely, thereby achieving initial separation and positioning of the cap 4, ensuring that only the bottommost cap 4 grabbed by the cap retrieval device 3 can be removed at a time.

[0037] The cap-removing device 3 is positioned between the conveyor belt 1 and the cap-storage device 2. It is used to remove the bottommost cap 4 from the cap-storage device 2 and place it onto the conveyor belt 1. The cap-removing device 3 acts as a bridge; its main function is to remove the bottommost cap 4 from the cap-storage device 2 and place it onto the conveyor belt 1, completing the crucial step from cap storage to conveying. It is the core actuator for achieving automated separation and conveying of the cap 4.

[0038] In this embodiment, the automatic cap-removing device first places a stack of caps 4 into the cap storage cylinder 22. The caps 4 will fall naturally under gravity, but due to the presence of the slots on the separating component 23, the slots will lock the edges of the caps 4, preventing them from falling freely. Only when the bottommost cap 4 is operated by the cap-removing device 3 will the upper caps 4 descend to the slot position under gravity and be locked again, achieving initial separation and positioning of the caps 4, ensuring that only one cap 4 is available for removal at a time. The cap-removing device 3 is activated at an appropriate time to remove the bottommost cap 4 from the cap storage device 2. The cap-removing device 3 may employ various methods, such as robotic gripping or suction, depending on factors such as the material and shape of the cap 4. The removed cap 4 is then placed on the conveyor belt 1, which continuously transports the cap 4 to subsequent cap-closing processes or other processing locations, completing the entire automatic cap-removing process.

[0039] In summary, the slot design on the separator 23 in this embodiment effectively restricts the free fall of the cap 4, ensuring that only one cap 4 reaches the pick-up position at a time. This achieves stable individual separation of the cap 4, avoiding the problem in existing technologies where two or more caps 4 are picked up and placed on the conveyor line simultaneously. This significantly improves the accuracy and stability of cap separation, providing a reliable guarantee for the subsequent capping process. Because the caps 4 can be stably and accurately separated and placed onto the conveyor belt 1, the spacing between the caps 4 on the conveyor line is uniform. The capping equipment can perform capping operations accurately and efficiently, reducing capping failures and substandard product packaging, thus improving production efficiency. Simultaneously, the stable production process also ensures the consistency of product packaging quality, enhancing the overall product quality.

[0040] In one embodiment, the storage cap device 2 has a storage cap channel inside for accommodating the cap 4, and a plurality of the separating members 23 are arranged around the storage cap channel.

[0041] The cap storage channel is a space specifically formed inside the cap storage device 2 to accommodate caps 4. It provides an orderly storage environment for stacked caps 4. The stacking direction of the caps 4 is usually consistent with the extension direction of the cap storage channel, so that the caps 4 can be arranged in a certain order in the channel, creating favorable conditions for subsequent separation and cap removal operations. This orderly storage method helps to reduce the chaos and accumulation of caps 4 in the channel and improve the stability and reliability of equipment operation.

[0042] Multiple separators 23 are arranged around the storage cover channel, which can restrict and separate the cover 4 from different directions. The separators 23 at different positions can clamp different edges or parts of the cover 4, which can more comprehensively and effectively control the falling of the cover 4, further enhancing the stability of the individual separation of the cover 4 and reducing the risk of multiple covers 4 being taken out together.

[0043] In one embodiment, combined with Figure 2 and Figure 3 The storage cover device 2 includes a mounting plate 21, which has a through hole 211 corresponding to the storage cover channel. The storage cover cylinder 22 is installed above the mounting plate 21, and the separator 23 is installed below the mounting plate 21.

[0044] Mounting plate 21 plays a crucial supporting and connecting role in the entire storage cover device 2. It is an important component connecting the storage cover cylinder 22 and the separator 23. Mounting plate 21 provides a stable mounting platform for the various components of the storage cover device 2, ensuring that each component can be accurately positioned and installed, and guaranteeing the structural stability and operational reliability of the entire device. The through hole 211 on it, corresponding to the storage cover channel, is the key channel for the cover 4 to be transferred from the storage cover cylinder 22 to the separator 23. The size and shape of this through hole 211 need to match the size and shape of the cover 4 to ensure that the cover 4 can pass through smoothly, while also working in conjunction with the separator 23 to achieve effective restriction and separation of the cover 4.

[0045] Separating components 23 are installed below the mounting plate 21, surrounding the through hole 211. They directly contact the cover 4 as it falls through the through hole 211, serving to clamp the edge of the cover 4 and restrict its free fall. The number, shape, and installation position of the separating components 23 need to be carefully designed according to the characteristics of the cover 4 and the separation requirements to ensure stable individual separation of the cover 4. The separating components 23 can be connected to the mounting plate 21 in various ways, such as bolting or welding. The connection method must ensure the firmness and stability of the separating components 23, while facilitating installation and disassembly for maintenance and replacement when needed.

[0046] This design, which mounts the storage cap cylinder 22 above the mounting plate 21 and the separator 23 below the mounting plate 21, makes the entire storage cap device 2 more compact and space-saving. At the same time, the connections between the various components are clear, the installation process is relatively simple, and it facilitates equipment assembly and maintenance. On the production site, the storage cap device 2 can be quickly installed on automated packaging production lines, improving the efficiency of production line setup.

[0047] In one embodiment, combined with Figure 2 The mounting plate 21 is provided with a plurality of mounting holes 212 arranged circumferentially around the through hole 211. The bottom of the storage cover cylinder 22 is provided with threaded holes corresponding one-to-one with the mounting holes 212. The mounting bolt 24 passes through the separator 23 and the mounting holes 212 from bottom to top and connects to the threaded holes, thereby fixing the storage cover cylinder 22 and the separator 23 to the mounting plate 21.

[0048] During installation, first, place the mounting plate 21 in a suitable position, ensuring that the through hole 211 is aligned with the subsequent transmission path of the cover 4. Next, place the storage cover cylinder 22 above the mounting plate 21, ensuring that the threaded hole at the bottom of the storage cover cylinder 22 corresponds one-to-one with the mounting hole 212. Then, place the separator 23 below the mounting plate 21, roughly corresponding to the position of the mounting hole 212. Afterward, pass the mounting bolt 24 from below the mounting plate 21 upwards through the separator 23 and the mounting hole 212, and then screw it into the threaded hole at the bottom of the storage cover cylinder 22. By gradually tightening the mounting bolt 24, the separator 23, the mounting plate 21, and the storage cover cylinder 22 are securely fixed together. During tightening, ensure that the tightening force of each bolt is uniform to guarantee a firm connection between components and prevent damage due to uneven force.

[0049] This installation method creates a solid connection between the storage cap cylinder 22, the separator 23, and the mounting plate 21, greatly improving the structural stability of the entire storage cap device 2. During equipment operation, it can withstand greater forces and vibrations, reducing malfunctions and downtime caused by loose parts, and ensuring the continuous and stable operation of the automated packaging production line.

[0050] Furthermore, when maintenance or replacement of the storage cover cylinder 22 or the separator 23 is required, the corresponding component can be disassembled simply by loosening the mounting bolts 24. This detachable installation method is convenient and quick, greatly shortening equipment maintenance time and reducing maintenance costs. At the same time, because the connection relationships between the various components are clear, maintenance personnel can more easily troubleshoot and repair faults.

[0051] In one embodiment, the storage cover cylinder 22 includes a plurality of uprights 221 arranged around the circumference of the through hole 211, and the bottom end of the uprights 221 is provided with the threaded hole.

[0052] The storage cylinder 22 is composed of several uprights 221 arranged around the circumference of the through hole 211. This design breaks away from the conventional structure of the traditional closed storage cylinder 22. There are gaps between the uprights 221. Compared with the closed cylinder, it reduces the use of materials, the weight of the equipment and the manufacturing cost while ensuring that the lids 4 can be stacked and stored. At the same time, this open structure also makes it easier to observe the storage status of the lids 4 and facilitates operators to detect abnormal problems such as the lids 4 tilting or jamming in a timely manner.

[0053] In one embodiment, the mounting plate 21 is provided with a plurality of through holes 211 along the conveying direction of the conveyor belt 1, and each through hole 211 corresponds to the installation of a set of storage cover cylinders 22 and the separator 23.

[0054] In this embodiment, multiple through holes 211 and their corresponding storage cap cylinders 22 and separators 23 can simultaneously supply and assemble the caps 4, greatly improving the efficiency of the packaging production line. Compared with a single cap 4 supply unit, this multi-unit parallel operation method can assemble caps 4 for more products in the same amount of time, meeting the needs of large-scale production.

[0055] In one embodiment, along the conveying direction of the conveyor belt 1, an mounting hole 212 is provided between any two adjacent through holes 211, so that two adjacent storage cover channels share a separator 23.

[0056] In this embodiment, two adjacent storage cap channels share a single separator 23. The separator 23 is no longer limited to a single storage cap channel but can serve two adjacent channels simultaneously, greatly reducing the number of separators 23. This not only reduces the cost of equipment components but also reduces the complex failure points that may arise during equipment operation due to multiple separators 23, thereby improving the overall reliability of the equipment.

[0057] In one embodiment, the slot provided on the separator 23 is a threaded groove.

[0058] The threaded groove can be set to multiple turns to provide multiple limits for the cover 4, reducing the risk of the cover 4 falling off. Compared with opening multiple parallel straight grooves, the machining of a continuous threaded groove is simpler and more direct.

[0059] In one embodiment, reference is made to Figure 4 The lid removal device 3 includes a rotary drive 33, a rotary shaft 31, and a suction cup 32. The rotary shaft 31 is arranged parallel to the conveying direction of the conveyor belt 1. The rotary drive 33 is connected to the end of the rotary shaft 31 to drive the rotary shaft 31 to rotate. The suction cup 32 is mounted on the rotary shaft 31 to adsorb the lid 4.

[0060] Among them, the rotary drive 33 serves as a power source, providing power for the rotation of the rotary shaft 31; the rotary shaft 31 serves as a transmission component, transmitting the power of the rotary drive 33 to the suction cup 32; the suction cup 32 is a key component that directly contacts the cover 4 and completes the adsorption and release operations.

[0061] During operation, when a cap removal operation is required, the rotary drive 33 is activated, causing the rotary shaft 31 to start rotating. The rotation of the rotary shaft 31 causes the suction cup 32 mounted on the rotary shaft 31 to gradually change direction until the suction cup 32 faces upward. At this time, the suction cup 32 contacts the cap 4 released by the separator 23 inside the cap storage cylinder 22. Through the negative pressure inside the suction cup 32 or other adsorption principles, the cap 4 is tightly adsorbed onto the suction cup 32, completing the cap removal operation.

[0062] After the cap is removed, the rotary drive 33 drives the rotary shaft 31 to rotate in the opposite direction, causing the suction cup 32 to change direction along with the cap 4 until the suction cup 32 faces downwards. When the suction cup 32 reaches directly above the product on the conveyor belt 1, the suction cup 32 releases its suction, and the cap 4 is placed on the product, completing the cap placement action. The entire cap removal and placement process is achieved by rotating the rotary shaft 31 to change the direction of the suction cup 32, making the action smooth and efficient.

[0063] The device uses a rotating shaft 31 to drive the suction cup 32 to rotate, which realizes the picking and placing of the cap. The action is simple and fast, and the transfer operation of the cap 4 can be completed in a short time. Compared with other complicated cap picking devices 3, this device reduces unnecessary movement links, greatly improves the efficiency of picking and placing caps, and meets the needs of high-speed production of automated packaging production lines.

[0064] The rotary drive component 33 is preferably a rotary cylinder.

[0065] In one embodiment, the lid-removing device 3 further includes a lifting drive 34, which is connected to the rotating shaft 31 and is used to drive the rotating shaft 31 to rise and fall, so that the suction cup 32 can lift and remove the lid 4.

[0066] The cap-removing device 3 adds a lifting drive 34 to the existing rotary drive 33, rotary shaft 31, and suction cup 32. The lifting drive 34 is connected to the rotary shaft 31, a design that adds vertical movement capability to the cap-removing device 3. Through the action of the lifting drive 34, the rotary shaft 31 can drive the suction cup 32 to move vertically up and down, thereby changing the position of the suction cup 32 in space and enabling it to perform cap-removing and cap-placing operations more flexibly.

[0067] When removing the cap, the suction cup 32 maintains a sufficient distance from the cap storage device 2, allowing the suction cup 32 to rotate freely without interfering with the cap storage device 2; after rotating to the point where the suction cup 32 faces upward, the suction cup 32 is aligned with the bottom of the cap 4, and then the lifting drive 34 pushes the rotating shaft 31 upward, so that the suction cup 32 approaches and adheres to the bottommost cap 4; then the suction cup 32 sucks air to tighten the cap 4.

[0068] After the lid 4 is picked up, the lifting drive 34 drives the rotating shaft 31 to move downward, so that the suction cup 32 pulls the tightly gripped lid 4 downward. Then the rotating drive 33 drives the rotating shaft 31 to rotate until the suction cup 32 is facing downward. Then the suction cup 32 blows air to blow the lid 4 downward onto the conveyor belt 1.

[0069] Before rotating the suction cup 32, a sufficient distance is maintained between the suction cup 32 and the lid storage device 2 to avoid interference during rotation and reduce the probability of equipment failure. Precise rotation positioning and upward suction process ensure that the suction cup 32 can accurately pick up the bottommost lid 4, improving the stability of lid 4 suction.

[0070] The lifting drive component 34 is preferably a linear cylinder.

[0071] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0072] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0073] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0074] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. An automatic cover-dropping device, characterized in that, include: Conveyor belt (1) for conveying lids (4); The storage cap device (2) includes a storage cap cylinder (22) and a separator (23) disposed at the bottom of the storage cap cylinder (22). The separator (23) is provided with a groove for locking the edge of the cap (4) to limit the free fall of the cap (4). The cap removal device (3) is located between the conveyor belt (1) and the cap storage device (2) for removing the bottommost cap (4) from the cap storage device (2) and placing it onto the conveyor belt (1).

2. The automatic cover-lowering device according to claim 1, characterized in that, The storage cover device (2) has a storage cover channel inside for accommodating the cover (4), and a plurality of the separation members (23) are arranged around the storage cover channel.

3. The automatic cover-lowering device according to claim 2, characterized in that, The storage cover device (2) includes a mounting plate (21), which has a through hole (211) corresponding to the storage cover channel. The storage cover cylinder (22) is installed above the mounting plate (21), and the separator (23) is installed below the mounting plate (21).

4. The automatic cover-lowering device according to claim 3, characterized in that, The mounting plate (21) is provided with a plurality of mounting holes (212) arranged circumferentially around the through hole (211). The bottom of the storage cover cylinder (22) is provided with threaded holes corresponding to the mounting holes (212). The mounting bolts (24) pass through the separator (23) and the mounting holes (212) from bottom to top and connect to the threaded holes, thereby fixing the storage cover cylinder (22) and the separator (23) to the mounting plate (21).

5. The automatic cover-lowering device according to claim 4, characterized in that, The storage cover cylinder (22) includes several uprights (221) arranged around the circumference of the through hole (211), and the bottom end of the uprights (221) is provided with the threaded hole.

6. The automatic cover-lowering device according to claim 4, characterized in that, The mounting plate (21) is provided with a plurality of through holes (211) along the conveying direction of the conveyor belt (1), and each through hole (211) corresponds to the installation of a set of storage cap cylinders (22) and the separator (23).

7. The automatic cover-lowering device according to claim 6, characterized in that, Along the conveying direction of the conveyor belt (1), an installation hole (212) is provided between any two adjacent through holes (211), so that two adjacent storage cover channels share a separator (23).

8. The automatic cover-lowering device according to claim 7, characterized in that, The slot provided on the separator (23) is a threaded groove.

9. The automatic cover-lowering device according to claim 1, characterized in that, The lid removal device (3) includes a rotary drive (33), a rotary shaft (31), and a suction cup (32). The rotary shaft (31) is arranged along the conveying direction parallel to the conveyor belt (1). The rotary drive (33) is connected to the end of the rotary shaft (31) to drive the rotary shaft (31) to rotate. The suction cup (32) is mounted on the rotary shaft (31) to adsorb the lid (4).

10. The automatic cover-lowering device according to claim 9, characterized in that, The lid removal device (3) further includes a lifting drive (34), which is connected to the rotating shaft (31) to drive the rotating shaft (31) to rise and fall, so that the suction cup (32) can lift and drop the lid (4).

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