Molecular sieve filling moisture-proof device
By using a measuring cup-type filling head assembly and a sealed hopper design, the problems of filling accuracy and material moisture content during molecular sieve filling are solved, achieving precise filling and moisture-proof effects, and improving product quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI TIHO MOLECULAR SIEVE CO LTD
- Filing Date
- 2026-04-07
- Publication Date
- 2026-05-08
AI Technical Summary
Existing technologies cannot effectively control the filling accuracy and material moisture content during the molecular sieve filling process, resulting in a high product defect rate.
It adopts a measuring cup-type filling head assembly and a sealed hopper design. The filling volume is adjusted by forming a sealed chamber between the outer cylinder and the inner cylinder, and the isolation structure of the sealed hopper prevents the material from contacting the outside air.
It achieves precise control of filling volume and reduction of material moisture content, improving product quality. The device has a simple structure, is easy to install and maintain, and does not affect production efficiency.
Smart Images

Figure CN121990219A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of material filling and moisture-proofing technology, and in particular to a molecular sieve filling and moisture-proofing device. Background Technology
[0002] In recent years, with the widespread application of molecular sieve filter elements in environmental protection, chemical industry, and other fields, their product quality has received increasing attention. During the molecular sieve filling process, the quality of the product molding has a crucial impact on the overall performance. The filling process, as a vital link, plays a decisive role in the final product quality through its accuracy and material condition. Currently, the industry generally recognizes the importance of improving the accuracy of material filling and reducing the moisture content of materials, but effective solutions have yet to be found.
[0003] Currently, in the manufacturing of molecular sieve jars, the common practice is to directly inject the material into non-woven bags using an electronic scale. To improve filling accuracy, some have tried increasing the precision of the electronic scale; others have opted to add protective covers to reduce material contact with air. However, these conventional methods all have certain limitations. Increasing the precision of the electronic scale cannot completely guarantee the accuracy of filling, and adding protective covers cannot achieve complete isolation between the material and air.
[0004] The main problem with existing technologies is their inability to guarantee the accuracy of filling volume and the moisture content of materials during production. While electronic scale filling and semi-enclosed direct discharge methods can be used for production, their filling volume accuracy is insufficient, and the moisture content of materials is difficult to control, resulting in a high rate of defective products. Existing technologies lack effective means to control filling volume and material moisture content. Summary of the Invention
[0005] This application provides a molecular sieve filling and moisture-proof device, which adopts a measuring cup filling and sealed hopper design, thereby improving filling accuracy and reducing the moisture content of the material.
[0006] This application provides a moisture-proof device for molecular sieve filling, which adopts the following technical solution: A molecular sieve filling and moisture-proof device includes a filling head assembly and a sealed hopper. The filling head assembly includes an outer cylinder, an inner cylinder, and a valve for controlling the opening and closing of the filling process. The outer cylinder and the inner cylinder form a sealed chamber to adjust the filling volume. The sealed hopper includes a sealed space for storing materials and prevents the materials from contacting the outside air through an isolation structure.
[0007] By adopting the above technical solution, the filling volume can be adjusted by using the sealed chamber formed by the outer cylinder and the inner cylinder during use, so that the filling volume meets the quality requirements and solves the problem of filling volume accuracy; the sealed hopper has a sealed space for storing materials and prevents the materials from contacting the outside air through the isolation structure, which can solve the problem of excessive moisture content in the materials.
[0008] Preferably, the sealed hopper includes a vacuum chamber at the top and a transparent material hopper in the middle, the vacuum chamber and the transparent material hopper being separated by an isolation structure, and the transparent material hopper being connected to the filling head assembly.
[0009] By adopting the above technical solution, the sealed hopper is divided into a top vacuum chamber and a middle transparent material chamber during use, and is separated by an isolation structure. The transparent material chamber is connected to the filling head assembly, which can further isolate the material from contact with the outside air, reduce the moisture content of the material, and at the same time, the transparent material chamber makes it easy to observe the material condition.
[0010] Preferably, the filling head assembly further includes a driving mechanism. A slide rail is provided on one side of the outer cylinder and the inner cylinder. The outer cylinder and the inner cylinder are slidably connected to the slide rail through a connecting plate. The driving mechanism drives the connecting plate to move along the slide rail, thereby driving the outer cylinder and the inner cylinder to move up and down.
[0011] By adopting the above technical solution, the filling head assembly is equipped with a drive mechanism, a slide rail, and a connecting plate during use. The drive mechanism can drive the connecting plate to move along the slide rail, which in turn moves the outer cylinder and the inner cylinder up and down. This helps to adjust the size of the sealed chamber formed by the outer cylinder and the inner cylinder, thereby accurately adjusting the filling volume, ensuring that the filling volume meets the quality requirements, and solving the problem of filling volume accuracy.
[0012] Preferably, the driving mechanism is a cylinder, the output end of the cylinder is connected to the connecting plate, and the cylinder drives the connecting plate to move the outer cylinder body up and down.
[0013] By adopting the above technical solution, when in use, the cylinder is used as the driving mechanism to drive the connecting plate to move the outer cylinder up and down, which can accurately control the movement of the outer cylinder, thereby more accurately adjusting the filling volume and improving the filling accuracy. Moreover, the cylinder drive is stable and reliable, which can ensure the high efficiency and stability of the filling process.
[0014] Preferably, a discharge pipe is provided inside the transparent material bin, and the discharge pipe is connected to the outer cylinder. A scraper that can move towards or away from the inner cylinder is provided at one end of the discharge pipe near the inner cylinder. The outer wall of the scraper slides against the inner wall of the outer cylinder. The scraper is controlled to open and close by a drive component to adjust the communication state between the discharge pipe and the inner cylinder. At the same time, the scraper is used to ensure that the material in the inner cylinder is flush with its end plane.
[0015] By adopting the above technical solution, during use, the material can smoothly enter the filling head assembly from the transparent material bin by connecting the discharge pipe with the outer cylinder. The scraper can move towards or away from each other and its outer wall slides against the inner wall of the outer cylinder. The opening and closing can be controlled by the drive component to adjust the connection state between the discharge pipe and the inner cylinder, thereby controlling the flow of material. At the same time, the scraper can make the material in the inner cylinder flush with its end plane, ensuring the accuracy of each filling volume.
[0016] Preferably, the outer cylinder and the inner cylinder are made of stainless steel, and the valve is a plug valve.
[0017] By adopting the above technical solutions, the outer and inner cylinder bodies made of stainless steel have good corrosion resistance and strength, which can ensure the durability and stability of the device; the valve with the plug valve structure can realize fast and accurate filling opening and closing control, improving filling efficiency and accuracy.
[0018] Preferably, both ends of the vacuum chamber are provided with feed pipes, and the feed pipes are sealed and connected to the vacuum chamber.
[0019] By adopting the above technical solution, the sealed feed pipe allows materials to enter the vacuum chamber during use, ensuring the overall sealing of the sealed silo.
[0020] Preferably, the transparent material bin is fixed by a bracket, and the drive mechanism shown is mounted on the bracket.
[0021] By adopting the above technical solution, the transparent material bin can be securely installed by using a bracket during use; and the drive mechanism can be installed on the bracket to rationally plan the layout of the device and ensure stable operation of the drive mechanism.
[0022] Preferably, the bottom of the inner cylinder is provided with a discharge chamber, and the inner cylinder is connected to the discharge chamber through a material conveying pipe.
[0023] By adopting the above technical solution, a discharge hopper is set at the bottom of the inner cylinder and connected to it through a conveying pipe during use. This allows the material with the filling volume adjusted by the filling head assembly to be smoothly conveyed to the discharge hopper, further ensuring the smoothness of the material filling process.
[0024] Preferably, an adjustment handle is provided on the outer side of the connecting plate, and the adjustment handle is rigidly connected to the connecting plate to manually adjust the relative position of the outer cylinder and the inner cylinder.
[0025] By adopting the above technical solution, an adjustment handle rigidly connected to the connecting plate is provided during use, allowing manual adjustment of the relative positions of the outer and inner cylinders, thereby enabling more flexible adjustment of the filling volume.
[0026] In summary, this application has the following beneficial effects: 1. The present invention provides a molecular sieve filling moisture-proof device, which adjusts the filling volume by forming a sealed chamber between the outer cylinder and the inner cylinder, so that the filling volume meets the quality requirements and solves the problem of filling volume accuracy. 2. The present invention provides a molecular sieve filling moisture-proof device, in which the sealed silo prevents the material from contacting the outside air through an isolation structure, thus solving the problem of the material's moisture content; 3. The molecular sieve filling moisture-proof device designed in this invention has a relatively simple structure, is easy to install and maintain, and does not affect production efficiency. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 This is a cross-sectional view showing the interior of the transparent material bin in the embodiment; Explanation of reference numerals in the attached drawings: 1. Filling head assembly; 11. Outer cylinder; 12. Inner cylinder; 13. Valve; 2. Sealed hopper; 21. Vacuum chamber; 22. Transparent material hopper; 3. Drive mechanism; 31. Cylinder; 4. Slide rail; 5. Connecting plate; 6. Discharge pipe; 7. Scraper; 8. Feed pipe; 9. Support; 10. Discharge hopper; 14. Adjusting handle. Detailed Implementation
[0028] The present invention will be further described in detail below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "bottom," and "top" used in the following description refer to directions in the drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
[0029] This invention discloses a moisture-proof device for molecular sieve filling, such as... Figure 1 and Figure 2 As shown, the device includes a filling head assembly 1 and a sealed hopper 2. The filling head assembly 1 and the sealed hopper 2 work together. The filling head assembly 1 is used to precisely adjust the filling volume, while the sealed hopper 2 isolates the material from contact with external air, thus improving filling accuracy, reducing material moisture content, and ensuring product quality. This is because the filling head assembly 1, through the sealed chamber formed by the inner and outer cylinders 11, can precisely control the filling volume, and the isolation structure of the sealed hopper 2 effectively prevents air from entering and contacting the material.
[0030] Specifically, the filling head assembly 1 includes an outer cylinder 11, an inner cylinder 12, and a valve 13 for controlling the opening and closing of the filling process.
[0031] The outer cylinder body 11 is made of stainless steel, which has good corrosion resistance and strength, ensuring the service life of the cylinder body. Of course, other metal materials with similar properties, such as aluminum alloys, can also be used. The outer cylinder body 11 is a hollow cylindrical structure, and its internal space is used to accommodate materials and the inner cylinder body 12.
[0032] The inner cylinder 12 is also made of stainless steel, but can be replaced with other suitable metal materials. It is cylindrical and can move up and down inside the outer cylinder 11. The inner cylinder 12 and the outer cylinder 11 fit together tightly with minimal clearance to ensure the sealing of the formed enclosed chamber. This tight fit can be achieved through high-precision machining processes, such as precision turning and grinding.
[0033] Valve 13 is a slide valve, characterized by its simple structure and reliable operation. When filling is required, valve 13 opens, allowing material to flow from the sealed chamber into the non-woven bag; after filling is complete, valve 13 closes to prevent leakage. The slide valve can be driven electrically or pneumatically; for example, a pneumatic slide valve can be used, where compressed air controls the opening and closing of valve 13.
[0034] A slide rail 4 is provided on one side of the outer cylinder 11 and the inner cylinder 12. The outer cylinder 11 and the inner cylinder 12 are slidably connected to the slide rail 4 via a connecting plate 5. The slide rail 4 is usually a linear guide rail, which has the characteristics of high precision and low friction, and can ensure that the outer cylinder 11 and the inner cylinder 12 move smoothly up and down. The connecting plate 5 serves to connect the outer cylinder 11, the inner cylinder 12 and the slide rail 4. It is generally made of metal sheet and has a certain strength and rigidity.
[0035] The filling head assembly 1 also includes a drive mechanism 3, which is a cylinder 31. The output end of the cylinder 31 is connected to the connecting plate 5. The cylinder 31 is a common driving device with the advantages of large output force and rapid action. When the cylinder 31 is working, its output end pushes the connecting plate 5 to move along the slide rail 4, thereby driving the outer cylinder 11 and the inner cylinder 12 to move up and down. By controlling the stroke of the cylinder 31, the position of the inner cylinder 12 in the outer cylinder 11 can be precisely adjusted, thereby adjusting the filling volume.
[0036] A discharge pipe 6 is installed inside the transparent material hopper 22, and the discharge pipe 6 is connected to the outer cylinder 11. The discharge pipe 6 is usually made of plastic or metal tubing, which has good wear resistance and corrosion resistance. A scraper 7, which can move towards or away from the inner cylinder 12, is installed at one end of the discharge pipe 6 near the inner cylinder 11. The outer wall of the scraper 7 slides against the inner wall of the outer cylinder 11. The scraper 7 is generally made of rubber or plastic, which has a certain degree of elasticity and flexibility, allowing it to better conform to the inner wall of the outer cylinder 11. The scraper 7 is controlled to open and close by a drive component, which can be a small cylinder 31 or an electric push rod, etc. When the scraper 7 is open, the discharge pipe 6 is connected to the inner cylinder 12, and the material can enter the inner cylinder 12; when the scraper 7 is closed, it can scrape the material in the inner cylinder 12 flat, ensuring that the material is flush with its end plane, thereby ensuring the accuracy of each filling volume. The discharge pipe 6 is also equipped with a switch valve for opening and closing. By opening the switch valve, the material is controlled to enter the inner cylinder 12 through the discharge pipe 6. The switch valve and the drive component of the scraper 7 are both controlled by the control system.
[0037] The sealed hopper 2 includes a vacuum chamber 21 at the top and a transparent material hopper 22 in the middle. The vacuum chamber 21 and the transparent material hopper 22 are separated by an isolation structure. The transparent material hopper 22 is connected to the filling head assembly 1.
[0038] Both ends of the vacuum chamber 21 are equipped with feed pipes 8, which are sealed and connected to the vacuum chamber 21. The feed pipes 8 are used to transport materials into the vacuum chamber 21, and the sealed connection prevents air from entering the vacuum chamber 21. The vacuum chamber 21 is made of stainless steel or other metal materials, which have good sealing and pressure resistance. Inside the vacuum chamber 21, air can be extracted by a vacuum pump to create a certain degree of vacuum, reducing the contact between the material and air.
[0039] The transparent material bin 22 is made of transparent acrylic material, with aluminum end caps and sealing strips. The transparent material bin 22 facilitates observation of material storage and flow. The aluminum end caps offer sufficient strength and corrosion resistance, while the sealing strips further enhance sealing performance, preventing air from entering the material bin. The transparent material bin 22 is secured by a bracket 9, on which the drive mechanism 3 is mounted. The bracket 9 is typically constructed from welded metal profiles, possessing sufficient strength and stability to support the weight of the sealed material bin 2 and the drive mechanism 3.
[0040] The bottom of the inner cylinder 12 is provided with a discharge chamber 10, and the inner cylinder 12 is connected to the discharge chamber 10 through a conveying pipe. The discharge chamber 10 is used to collect the material flowing out of the inner cylinder 12. The conveying pipe can be made of plastic or metal to ensure that the material can be smoothly transported to the discharge chamber 10.
[0041] An adjusting handle 14 is provided on the outer side of the connecting plate 5. The adjusting handle 14 is rigidly connected to the connecting plate 5 to allow manual adjustment of the relative positions of the outer cylinder 11 and the inner cylinder 12. The adjusting handle 14 is usually made of a metal or plastic rod for easy manual adjustment by the operator. When it is necessary to adjust the filling volume urgently or to debug the equipment, the relative positions of the outer cylinder 11 and the inner cylinder 12 can be changed by rotating the adjusting handle 14.
[0042] The implementation principle of this embodiment is as follows: The material first enters the vacuum chamber 21 through the feed pipe 8, where its contact with air is reduced. Then, the material enters the transparent material bin 22 and passes through the discharge pipe 6 into the sealed chamber formed by the outer cylinder 11 and inner cylinder 12 of the filling head assembly 1. The drive mechanism 3 drives the outer cylinder 11 and inner cylinder 12 to move up and down, adjusting the filling volume. The scraper 7 controls the connection between the discharge pipe 6 and the inner cylinder 12 and smooths the material. When the valve 13 is opened, the material enters the discharge bin 10 from the inner cylinder 12 through the conveying pipe and is finally filled into the non-woven bag. This design precisely controls the filling volume through a measuring cup filling method, and the sealed bin 2 effectively isolates the material from air, improving product quality. At the same time, the structure is simple, easy to install and maintain, and does not affect production efficiency, representing a significant improvement and contribution compared to existing technologies. Example
[0043] The difference between this embodiment and the previous embodiment is that the drive mechanism 3 uses an electric push rod instead of the cylinder 31. The electric push rod is also a common linear drive device, characterized by high precision and convenient control. The output end of the electric push rod is connected to the connecting plate 5. The extension and retraction of the push rod, driven by a motor, causes the connecting plate 5 to move along the slide rail 4, thereby realizing the up-and-down movement of the outer cylinder 11 and the inner cylinder 12.
[0044] The implementation principle of this embodiment is as follows: the electric push rod drive can more precisely control the movement position of the outer cylinder 11 and the inner cylinder 12, improving the accuracy of filling volume adjustment. At the same time, the electric push rod control is more flexible and can be programmed to control according to different production needs, further improving production efficiency and product quality. Compared with the prior art, using an electric push rod as the drive mechanism 3 significantly improves filling accuracy and control flexibility.
[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A molecular sieve filling moisture-proof device, characterized in that: The device includes a filling head assembly (1) and a sealed hopper (2). The filling head assembly (1) includes an outer cylinder (11), an inner cylinder (12), and a valve (13) for controlling the opening and closing of the filling process. The outer cylinder (11) and the inner cylinder (12) form a sealed chamber to adjust the filling volume. The sealed hopper (2) includes a sealed space for storing materials and prevents the materials from contacting the outside air through an isolation structure.
2. The molecular sieve filling moisture-proof device according to claim 1, characterized in that: The sealed hopper (2) includes a vacuum chamber (21) at the top and a transparent material hopper (22) in the middle. The vacuum chamber (21) and the transparent material hopper (22) are separated by an isolation structure. The transparent material hopper (22) is connected to the filling head assembly (1).
3. The molecular sieve filling moisture-proof device according to claim 1, characterized in that: The filling head assembly (1) also includes a drive mechanism (3). A slide rail (4) is provided on one side of the outer cylinder (11) and the inner cylinder (12). The outer cylinder (11) and the inner cylinder (12) are slidably connected to the slide rail (4) through a connecting plate (5). The drive mechanism (3) drives the outer cylinder (11) and the inner cylinder (12) to move up and down by driving the connecting plate (5) to move along the slide rail (4).
4. The molecular sieve filling moisture-proof device according to claim 3, characterized in that: The driving mechanism (3) is a cylinder (31). The output end of the cylinder (31) is connected to the connecting plate (5). The cylinder (31) drives the connecting plate (5) to move the outer cylinder body (11) up and down.
5. A molecular sieve filling moisture-proof device according to claim 2, characterized in that: The transparent material bin (22) is provided with a discharge pipe (6), which is connected to the outer cylinder (11). The end of the discharge pipe (6) near the inner cylinder (12) is provided with a scraper (7) that can move towards or away from each other. The outer side wall of the scraper (7) slides on the inner wall of the outer cylinder (11). The scraper (7) is controlled to open and close by a drive component to adjust the communication state between the discharge pipe (6) and the inner cylinder (12). At the same time, the scraper (7) is used to ensure that the material in the inner cylinder (12) is flush with its end plane.
6. The molecular sieve filling moisture-proof device according to claim 1, characterized in that: The outer cylinder (11) and the inner cylinder (12) are made of stainless steel, and the valve (13) is a plug valve.
7. A molecular sieve filling moisture-proof device according to claim 2, characterized in that: Both ends of the vacuum chamber (21) are provided with feed pipes (8), and the feed pipes (8) are sealed and connected to the vacuum chamber (21).
8. A molecular sieve filling moisture-proof device according to claim 2, characterized in that: The transparent material bin (22) is fixed by a bracket (9), and the drive mechanism (3) shown is mounted on the bracket (9).
9. A molecular sieve filling moisture-proof device according to claim 3, characterized in that: The bottom of the inner cylinder (12) is provided with a discharge chamber (10), and the inner cylinder (12) is connected to the discharge chamber (10) through a material conveying pipe.
10. A molecular sieve filling moisture-proof device according to claim 1, characterized in that: An adjustment handle (14) is provided on the outside of the connecting plate (5). The adjustment handle (14) is rigidly connected to the connecting plate (5) to manually adjust the relative position of the outer cylinder (11) and the inner cylinder (12).