Screening device for drying agent packaging

Abstract

The utility model relates to the technical field of desiccant packaging, in particular to a screening device for desiccant packaging, which comprises a screening tank, two rotating rings distributed up and down are arranged in the screening tank, the lower ends of the inner walls of the rotating rings are fixedly connected with supporting rings, and a screening plate of a conical structure is arranged above the rotating rings. A plurality of evenly-distributed notches are formed in the upper end face of the screening plate in a penetrating mode, screens are fixedly connected to the interiors of the multiple notches, the sizes of screening holes of the multiple screens are different, and a mounting ring is fixedly connected to the lower end face of the screening plate; the driving motor drives the gear to rotate, the gear drives the outer gear ring to rotate, the outer gear ring drives the mounting ring to rotate, the mounting ring drives the screening plate to rotate, the screening plate drives the multiple screens to rotate by 120 degrees, one screen located in the containing cavity rotates into the screening cavity, and meanwhile the screen located in the screening cavity rotates into the containing cavity. And therefore, the screen can be replaced conveniently and quickly.

Description

Technical Field

[0001] This utility model relates to the field of desiccant packaging technology, specifically a screening device for desiccant packaging. Background Technology

[0002] Desiccants are substances that remove moisture from damp materials. They are generally divided into two categories: chemical desiccants, such as calcium sulfate and calcium chloride, which dry by combining with water to form hydrates; and physical desiccants, such as silica gel and activated alumina, which dry by physically adsorbing water. During desiccant production, desiccants of different sizes often need to be screened to ensure that desiccants of the same size are stored together for easier packaging and use later.

[0003] Existing desiccant packaging screening devices require different tools to remove the screens from the device and install pre-prepared screens when screening materials of different sizes. This process is cumbersome and time-consuming, affecting the screening efficiency of the desiccant. Summary of the Invention

[0004] The purpose of this invention is to provide a screening device for desiccant packaging, which features easy screen replacement, shortens replacement time, and avoids affecting the desiccant screening efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a screening device for desiccant packaging, comprising a screening tank, wherein two rotating rings distributed vertically are arranged inside the screening tank, a support ring is fixedly connected to the lower end of the inner wall of the rotating ring, a screening plate with a conical structure is arranged above the rotating ring, and multiple evenly distributed notches are opened through the upper end surface of the screening plate, each of the multiple notches having a screen mesh fixedly connected inside, the screen mesh having different mesh sizes, an installation ring is fixedly connected to the lower end surface of the screening plate, the lower end surface of the installation ring is slidably connected to the upper end surface of the support ring, and an external toothed ring is fixedly connected to the outer wall of the installation ring;

[0006] The screening tank is fixedly connected to a plurality of partitions that are distributed vertically and interspersed with the two rotating rings. The upper ends of the two lower partitions extend into the interior of the two rotating rings respectively. The plurality of partitions divide the screening tank into a screening chamber and a receiving chamber.

[0007] In order to control the feeding speed of materials, as a preferred screening device for desiccant packaging according to this utility model, the upper end face of the screening tank is fixedly connected to a feeding trough communicating with the screening chamber, the upper end of the inside of the screening tank is slidably connected to an adjusting plate that matches the lower end of the feeding trough, and an electric telescopic rod is fixedly connected between the adjusting plate and the screening tank.

[0008] In order to drive the external gear ring to rotate, as a preferred screening device for desiccant packaging according to this utility model, the inner wall of the rotating ring is provided with a groove located above the support ring, and a gear that meshes with the external gear ring is rotatably connected inside the groove. A drive motor is installed inside the rotating ring, and the output end of the drive motor is fixedly connected to the gear.

[0009] In order to drive the rotating rings to vibrate, as a preferred screening device for desiccant packaging according to this utility model, a vibration motor is installed on the lower end face of both rotating rings.

[0010] In order to support the rotating ring while making it vibrate, the screening device for desiccant packaging of this utility model preferably has multiple evenly distributed support blocks fixedly connected to the inner wall of the screening tank. Multiple support blocks at the same height form a group, and vibration supports are installed between the two groups of support blocks and the two rotating rings.

[0011] In order to limit the positioning of the mounting ring, as a preferred screening device for desiccant packaging according to this utility model, the lower end face of the mounting ring and the upper end face of the support ring are slidably connected by a trapezoidal slider and a trapezoidal groove.

[0012] To facilitate the discharge of the screened material from the screening tank, the preferred screening device for desiccant packaging of this utility model has multiple vertically distributed discharge troughs fixedly connected to the outer wall of the screening tank and communicating with the screening chamber. The lower inner ends of the two upper discharge troughs are flush with the upper end surfaces of the two screening plates, and the lower inner end of the lower discharge trough is flush with the lower inner end of the screening tank.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] When replacing the screen, start the drive motor. The drive motor drives the gear to rotate, the gear drives the outer gear ring to rotate, the outer gear ring drives the mounting ring to rotate, the mounting ring drives the screening plate to rotate, and the screening plate drives multiple screens to rotate 120 degrees. This causes one of the screens located in the storage cavity to rotate into the screening cavity, and at the same time, the screens located in the screening cavity rotate into the storage cavity, thus facilitating and quickly completing the screen replacement. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a front cross-sectional view of the present invention.

[0017] Figure 3 This is a schematic diagram of the left-side cross-sectional structure of this utility model;

[0018] Figure 4 This is a top view sectional structural diagram of the present invention;

[0019] Figure 5 This utility model Figure 3 Enlarged structural diagram of part a;

[0020] In the diagram: 1. Screening tank; 2. Rotating ring; 3. Support ring; 4. Screening plate; 5. Notch; 6. Screen mesh; 7. Mounting ring; 8. External toothed ring; 9. Partition plate; 10. Screening chamber; 11. Receiving chamber; 12. Feed chute; 13. Adjusting plate; 14. Electric telescopic rod; 15. Groove; 16. Gear; 17. Drive motor; 18. Vibration motor; 19. Support block; 20. Vibration support; 21. Discharge chute. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present utility model and simplifying the description, 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 the present utility model. Furthermore, in the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0022] Please see Figures 1 to 5 A screening device for desiccant packaging includes a screening tank 1. Inside the screening tank 1, there are two rotating rings 2 arranged vertically. The lower end of the inner wall of the rotating ring 2 is fixedly connected to a support ring 3. Above the rotating ring 2, there is a screening plate 4 with a conical structure. The upper end face of the screening plate 4 has multiple evenly distributed notches 5. Each notch 5 is fixedly connected to a screen 6 with different screen hole sizes. The lower end face of the screening plate 4 is fixedly connected to an mounting ring 7. The lower end face of the mounting ring 7 is slidably connected to the upper end face of the support ring 3. The outer wall of the mounting ring 7 is fixedly connected to an external toothed ring 8.

[0023] The screening tank 1 is fixedly connected with multiple partitions 9 that are distributed vertically and interspersed with the two rotating rings 2. The upper ends of the two lower partitions 9 extend into the interior of the two rotating rings 2 respectively. The multiple partitions 9 divide the screening tank 1 into a screening chamber 10 and a storage chamber 11.

[0024] In this embodiment: during use, the material is placed into the screening chamber 10, causing it to fall onto the screening plate 4. Then, the rotating ring 2 vibrates, causing the mounting ring 7 and the screening plate 4 to vibrate. The screening plate 4 causes the screen 6 to vibrate, and the material is screened by the vibration of the screen 6. After screening, larger materials remain on the screening plate 4 and are discharged through the uppermost discharge chute 21. Smaller materials pass through the screen 6 and fall onto the lower screening plate 4. The material is then screened a second time by the vibration of the lower screen 6. After the second screening, larger materials remain on the lower screening plate 4 and are discharged through the middle discharge chute 21. After the second screening, smaller materials pass through the lower screen 6 and fall into the lower end of the screening chamber 10, and are discharged through the lowermost discharge chute 21, thus completing the material screening process.

[0025] During the screening process, multiple partitions 9 can isolate the materials, preventing materials in the screening chamber 10 from falling into the receiving chamber 11, such as... Figure 3 As shown, since the two rotating rings 2 and multiple partitions 9 are staggered, and the upper ends of the two partitions 9 at the bottom extend into the interior of the two rotating rings 2 respectively, the rotating rings 2 and the screening plate 4 can rotate while isolating the material.

[0026] When replacing the screen 6, the outer toothed ring 8 rotates, which drives the mounting ring 7 to rotate. The mounting ring 7 drives the screening plate 4 to rotate, and the screening plate 4 drives multiple screens 6 to rotate 120 degrees, so that one of the screens 6 located in the storage cavity 11 rotates into the screening cavity 10. At the same time, the screens 6 located in the screening cavity 10 rotate into the storage cavity 11, thus facilitating and quickly completing the replacement of the screen 6.

[0027] As a technical optimization of this utility model, the upper end face of the screening tank 1 is fixedly connected to the feed trough 12 which communicates with the screening cavity 10, and the upper end of the inside of the screening tank 1 is slidably connected to the adjustment plate 13 which matches the lower end of the feed trough 12. An electric telescopic rod 14 is fixedly connected between the adjustment plate 13 and the screening tank 1.

[0028] In this embodiment: the electric telescopic rod 14 is activated, and the electric telescopic rod 14 drives the adjusting plate 13 to move, so that the lower end of the feeding trough 12 is opened, thereby allowing the material in the feeding trough 12 to enter the screening chamber 10. By adjusting the moving distance of the adjusting plate 13, the size of the discharge port at the lower end of the feeding trough 12 is adjusted, thereby controlling the material discharge speed.

[0029] As a technical optimization of this utility model, the inner wall of the rotating ring 2 is provided with a groove 15 located above the support ring 3. The inside of the groove 15 is rotatably connected to a gear 16 that meshes with the external gear ring 8. The inside of the rotating ring 2 is equipped with a drive motor 17, and the output end of the drive motor 17 is fixedly connected to the gear 16.

[0030] In this embodiment: the drive motor 17 is started, the drive motor 17 drives the gear 16 to rotate, and the gear 16 drives the external gear ring 8 to rotate.

[0031] As a technical optimization of this utility model, a vibration motor 18 is installed on the lower end face of both rotating rings 2.

[0032] In this embodiment, the vibration motor 18 can drive the rotating ring 2 to vibrate.

[0033] As a technical optimization of this utility model, the inner wall of the screening tank 1 is fixedly connected with a plurality of evenly distributed support blocks 19. The plurality of support blocks 19 at the same height form a group, and vibration supports 20 are installed between the two groups of support blocks 19 and the two rotating rings 2.

[0034] In this embodiment, the vibration support 20 can support the rotating ring 2 while causing the rotating ring 2 to vibrate.

[0035] As a technical optimization of this utility model, the lower end face of the mounting ring 7 and the upper end face of the support ring 3 are slidably connected by a trapezoidal slider and a trapezoidal groove.

[0036] In this embodiment, the trapezoidal slider and trapezoidal groove can limit the mounting ring 7 while allowing the mounting ring 7 to rotate smoothly.

[0037] As a technical optimization of this utility model, the outer wall of the screening tank 1 is fixedly connected with a plurality of discharge troughs 21 that are distributed vertically and communicate with the screening chamber 10. The lower inner end of the two upper discharge troughs 21 is flush with the upper end surface of the two screening plates 4, and the lower inner end of the lower discharge trough 21 is flush with the lower inner end of the screening tank 1.

[0038] In this embodiment, multiple discharge troughs 21 facilitate the discharge of the screened material from the screening tank 1.

[0039] Working principle: When in use, the material is placed into the feeding trough 12, and then the electric telescopic rod 14 is started. The electric telescopic rod 14 drives the adjusting plate 13 to move, so that the lower end of the feeding trough 12 is opened, and the material in the feeding trough 12 enters the screening chamber 10. By adjusting the moving distance of the adjusting plate 13, the size of the discharge port at the lower end of the feeding trough 12 is adjusted, thereby controlling the material discharge speed.

[0040] After the material enters the screening chamber 10, it falls onto the screening plate 4. Then, the vibration motor 18 is started, which drives the rotating ring 2 to vibrate. The rotating ring 2 drives the mounting ring 7 and the screening plate 4 to vibrate. The screening plate 4 drives the screen 6 to vibrate. The material is screened by the vibration of the screen 6. After screening, the larger material stays on the screening plate 4 and is discharged through the uppermost discharge chute 21. The smaller material passes through the screen 6 and falls onto the lower screening plate 4. The material is then screened a second time by the vibration of the lower screen 6. After the second screening, the larger material stays on the lower screening plate 4 and is discharged through the middle discharge chute 21. After the second screening, the smaller material passes through the lower screen 6 and falls into the lower end of the screening chamber 10. It is then discharged through the lowermost discharge chute 21, thus completing the screening process.

[0041] During the screening process, multiple partitions 9 can isolate the materials, preventing materials in the screening chamber 10 from falling into the receiving chamber 11, such as... Figure 3 As shown, since the two rotating rings 2 and multiple partitions 9 are staggered, and the upper ends of the two partitions 9 at the bottom extend into the interior of the two rotating rings 2 respectively, the rotating rings 2 and the screening plate 4 can rotate while isolating the material.

[0042] When replacing the screen 6, start the drive motor 17. The drive motor 17 drives the gear 16 to rotate, the gear 16 drives the outer gear ring 8 to rotate, the outer gear ring 8 drives the mounting ring 7 to rotate, the mounting ring 7 drives the screening plate 4 to rotate, and the screening plate 4 drives multiple screens 6 to rotate 120 degrees, so that one of the screens 6 located in the storage cavity 11 rotates into the screening cavity 10. At the same time, the screens 6 located in the screening cavity 10 rotate into the storage cavity 11, thus facilitating and quickly completing the replacement of the screen 6.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A screening device for desiccant packaging, comprising a screening tank (1), characterized in that: The screening tank (1) is equipped with two rotating rings (2) arranged vertically. The lower end of the inner wall of the rotating ring (2) is fixedly connected to a support ring (3). A screening plate (4) with a conical structure is arranged above the rotating ring (2). The upper end face of the screening plate (4) is provided with multiple evenly distributed notches (5). Each notch (5) is fixedly connected to a screen (6). The screen holes of the multiple screens (6) are different. The lower end face of the screening plate (4) is fixedly connected to an installation ring (7). The lower end face of the installation ring (7) is slidably connected to the upper end face of the support ring (3). The outer wall of the installation ring (7) is fixedly connected to an external toothed ring (8). The screening tank (1) is fixedly connected to a plurality of partitions (9) that are distributed vertically and interspersed with the two rotating rings (2). The upper ends of the two lower partitions (9) extend into the interior of the two rotating rings (2), and the plurality of partitions (9) divide the screening tank (1) into a screening chamber (10) and a receiving chamber (11).

2. The screening device for desiccant packaging according to claim 1, characterized in that: The upper end face of the screening tank (1) is fixedly connected to a feed trough (12) that communicates with the screening chamber (10). The upper end of the screening tank (1) is slidably connected to an adjustment plate (13) that matches the lower end of the feed trough (12). An electric telescopic rod (14) is fixedly connected between the adjustment plate (13) and the screening tank (1).

3. The screening device for desiccant packaging according to claim 1, characterized in that: The inner wall of the rotating ring (2) has a groove (15) located above the support ring (3). The groove (15) is rotatably connected to a gear (16) that meshes with the external gear ring (8). The rotating ring (2) is equipped with a drive motor (17), and the output end of the drive motor (17) is fixedly connected to the gear (16).

4. The screening device for desiccant packaging according to claim 1, characterized in that: Vibration motors (18) are installed on the lower end faces of both rotating rings (2).

5. A screening device for desiccant packaging according to claim 1, characterized in that: The inner wall of the screening tank (1) is fixedly connected with a number of evenly distributed support blocks (19). Multiple support blocks (19) at the same height form a group, and vibration supports (20) are installed between the two groups of support blocks (19) and the two rotating rings (2).

6. A screening device for desiccant packaging according to claim 1, characterized in that: The lower end face of the mounting ring (7) and the upper end face of the support ring (3) are slidably connected by a trapezoidal slider and a trapezoidal groove.

7. A screening device for desiccant packaging according to claim 1, characterized in that: The outer wall of the screening tank (1) is fixedly connected with a plurality of discharge troughs (21) that are distributed vertically and communicate with the screening chamber (10). The lower inner end of the two upper discharge troughs (21) is flush with the upper end of the two screening plates (4), and the lower inner end of the lower discharge trough (21) is flush with the lower inner end of the screening tank (1).

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