Multi-stage bait classification screen device
The movable discharge pipe design solves the problems of the feed screen's discharge channel being unable to extend or retract and the material frame being unsuitable, achieving uniform material distribution and improving production efficiency and equipment adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LESHAN NORMAL UNIV
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-02
AI Technical Summary
The discharge channel of the existing bait screen cannot be extended or retracted, making it inconvenient to adapt to the feed frame. The material falls in a concentrated manner and tends to pile up into a cone shape, requiring frequent shaking to prevent overflow, which affects production efficiency and environmental cleanliness.
The design features a movable discharge pipe that slides along the outer wall of the positioning pipe via a drive component. This adapts to different material frames, dynamically adjusts the material drop point, and prevents accumulation.
It improves operational adaptability and production efficiency, distributes materials evenly, reduces waste, lowers the frequency of manual intervention, and enhances equipment versatility.
Smart Images

Figure CN224308967U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bait screening technology, and in particular to a multi-stage bait sorting screen device. Background Technology
[0002] Multi-stage feed sorting screen is a mechanical device used to classify and screen feed according to particle size. It is widely used in aquaculture, feed processing and other fields. Its core function is to automatically separate mixed feed (such as pellet feed, live feed or raw materials) into multiple grades through multiple layers of screens with different apertures to meet the needs of different aquaculture species or production stages.
[0003] Existing bait sorting screens use a fixed discharge channel design, which cannot be adjusted in length according to actual needs. This requires the preparation of a specific sized material frame for receiving the bait, greatly limiting operational flexibility. Furthermore, during the feeding process, the bait falls vertically in a concentrated manner, constantly impacting the same position in the material frame and forming a noticeable cone-shaped accumulation. This uneven distribution not only results in low utilization of the material frame space but also forces operators to frequently shake the material frame to flatten the bait, affecting sorting efficiency and easily causing bait spillage, seriously impacting production efficiency and the cleanliness of the working environment.
[0004] Therefore, in response to the problems mentioned above, such as the inability of the existing bait screen discharge channel to extend or retract, the inconvenience of adapting to the material frame, and the tendency of the concentrated material to accumulate into a cone shape, requiring frequent shaking to prevent overflow, a multi-stage bait sorting screen device can be designed. Utility Model Content
[0005] To overcome the problems of existing feed screens having non-extendable discharge channels, inconvenient fit to feed frames, and concentrated material accumulation in a cone shape, requiring frequent shaking to prevent overflow.
[0006] The technical solution of this utility model is as follows: a multi-stage bait sorting screen device, including a base; it also includes a positioning tube and a discharge tube. A vibration motor is installed inside the base, and multiple circumferentially distributed vibration springs are installed on the top of the base. Three vertically arranged mounting frames are installed on the top of the vibration springs. Fixing screws are provided on the outer side of each of the three mounting frames, and the three mounting frames are fixed together by the fixing screws. The vibration motor is used to drive the mounting frames to vibrate. A screen is installed inside each of the three mounting frames, and a positioning tube is connected to the outer side of each of the three mounting frames. The discharge tube is slidably connected to the outer side of the positioning tube, and a moving mechanism is installed on the top of the positioning tube. The moving mechanism is used to drive the discharge tube to move.
[0007] Preferably, by setting a drive component, the discharge pipe can be driven to slide left and right along the outer wall of the positioning pipe during operation. The movement of the discharge pipe allows the device to adapt to different material frames for discharge. Furthermore, the movement of the discharge pipe can constantly change the landing point of the bait inside the material frame, improving the uniformity of the dropping and preventing the bait from accumulating. This solves the problems of existing bait screen discharge channels being unable to extend or retract, inconvenient to adapt to material frames, and the concentrated dropping of material easily accumulating into a cone shape, requiring frequent shaking to prevent overflow.
[0008] Preferably, the moving mechanism includes a mounting component and a driving component, wherein the mounting component is used to fix the driving component, and the driving component is used to drive the discharge pipe to slide along the outer wall of the positioning pipe.
[0009] Preferably, the mounting assembly includes a fixing plate and a mounting plate; the fixing plate is mounted on the top of the positioning tube, and the fixing plate is fixed to the positioning tube by fixing screws, and the mounting plate is provided on the top of the fixing plate.
[0010] Preferably, the drive assembly includes a drive motor, a lead screw, and a movable seat; the drive motor is mounted on the rear side of the fixed plate, the lead screw is rotatably connected to the front side of the fixed plate, the output end of the drive motor is fixedly connected to the rear end of the lead screw, the drive motor is used to drive the lead screw to rotate, a movable seat is provided on the outer side of the lead screw, the movable seat is threadedly connected to the lead screw, and the movable seat is fixedly connected to the discharge pipe.
[0011] Preferably, a mounting plate is provided at the front end of the lead screw, and a buffer component is provided at the rear side of the mounting plate.
[0012] Preferably, the buffer assembly includes a buffer spring and a washer; a plurality of buffer springs are installed on the rear side of the mounting plate in a circumferentially distributed manner, and a washer is provided at the end of the buffer springs away from the mounting plate.
[0013] Preferably, sliders are installed on both the left and right sides of the positioning tube, and grooves are opened on both the left and right sides of the inside of the discharge tube, with the sliders slidingly connected to the grooves.
[0014] The beneficial effects of this utility model are:
[0015] By adopting a movable discharge pipe design, this device can flexibly adapt to storage frames of different sizes and specifications, significantly improving operational adaptability and production efficiency. During the discharge process, the discharge pipe can dynamically adjust its position according to the internal space of the frame, effectively avoiding local accumulation of bait and ensuring more uniform material distribution. This design not only optimizes the space utilization inside the frame and reduces material waste, but also reduces the frequency of manual intervention, making the entire operation process smoother and more efficient. At the same time, this design can also adapt to the needs of different production scenarios, further enhancing the versatility and practicality of the equipment and providing a reliable solution for modern production. Attached Figure Description
[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;
[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the moving mechanism of this utility model;
[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the positioning tube of this utility model;
[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the discharge pipe of this utility model;
[0020] Figure 5 The diagram shown is a three-dimensional half-section of the discharge pipe of this utility model.
[0021] Explanation of reference numerals in the attached drawings: 1. Base; 2. Vibration spring; 3. Mounting frame; 4. Fixing screw; 5. Positioning tube; 6. Discharge tube; 71. Fixing plate; 72. Mounting plate; 73. Drive motor; 74. Lead screw; 75. Moving seat; 8. Mounting plate; 91. Buffer spring; 92. Shim; 10. Slider; 11. Slide groove. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please see Figures 1-5 This utility model provides an embodiment of a multi-stage bait sorting screen device, including a base 1; it also includes a positioning tube 5 and a discharge tube 6. A vibration motor is installed inside the base 1, and multiple circumferentially distributed vibration springs 2 are installed on the top of the base 1. Three vertically arranged mounting frames 3 are installed on the top of the vibration springs 2. Fixing screws 4 are provided on the outer side of each of the three mounting frames 3, and the three mounting frames 3 are fixed together by the fixing screws 4. The vibration motor is used to drive the mounting frames 3 to vibrate. A screen is installed inside each of the three mounting frames 3, and the positioning tube 5 is connected to the outer side of each of the three mounting frames 3. The discharge tube 6 is slidably connected to the outer side of the positioning tube 5. A moving mechanism is installed on the top of the positioning tube 5, and the moving mechanism is used to drive the discharge tube 6 to move. By configuring a drive component, the discharge tube 6 can be driven to reciprocate along the outer wall of the positioning tube 5 in the working state. This motion design allows the system to flexibly adapt to different specifications of material frames for feeding operations. At the same time, by dynamically adjusting the position of the discharge tube 6, the landing point coordinates of the bait in the material frame are continuously changed, effectively improving the uniformity of material distribution and preventing the occurrence of local bait accumulation.
[0024] Please see Figures 2-5In this embodiment, the moving mechanism includes an installation component and a drive component. The installation component is used to fix the drive component, and the drive component is used to drive the discharge pipe 6 to slide along the outer wall of the positioning pipe 5. The installation component includes a fixing plate 71 and a mounting plate 72. The fixing plate 71 is installed on the top of the positioning pipe 5, and the fixing plate 71 is fixed to the positioning pipe 5 by fixing screws 4. The mounting plate 72 is provided on the top of the fixing plate 71. By setting the fixing plate 71 and the mounting plate 72, the drive component can be installed. The drive component includes a drive motor 73, a lead screw 74, and a moving seat 75. The rear side of the fixing plate 71 A drive motor 73 is installed, and a lead screw 74 is rotatably connected to the front side of the fixed plate 71. The output end of the drive motor 73 is fixedly connected to the rear end of the lead screw 74. The drive motor 73 is used to drive the lead screw 74 to rotate. A movable seat 75 is provided on the outside of the lead screw 74. The movable seat 75 is threadedly connected to the lead screw 74 and is fixedly connected to the discharge pipe 6. By setting the drive motor 73, its output end can drive the lead screw 74 to rotate during operation. When the lead screw 74 rotates, it can drive the movable seat 75, which is threadedly engaged with it, to reciprocate along its axial direction, thereby adjusting the position of the discharge pipe 6.
[0025] Please see Figures 2-5 In this embodiment, a mounting plate 8 is provided at the front end of the lead screw 74, and a buffer assembly is provided at the rear side of the mounting plate 8. The buffer assembly includes a buffer spring 91 and a washer 92. Multiple buffer springs 91 distributed in a circular pattern are installed at the rear side of the mounting plate 8. A washer 92 is provided at the end of the buffer spring 91 away from the mounting plate 8. By setting the buffer spring 91 and the washer 92, the moving seat 75 will contact the washer 92 when it moves to the end of its stroke, so that the buffer spring 91 is compressed, thereby achieving buffering. Slider 10 is installed on both the left and right sides of the positioning tube 5. Slide grooves 11 are opened on both the left and right sides of the inside of the discharge tube 6. The slider 10 and the slide groove 11 are slidably connected. By setting the slider 10 and the slide groove 11, the movement direction of the discharge tube 6 can be restricted, and its movement stability can be improved.
[0026] During operation, the vibration motor and vibration spring 2 inside the base 1 drive the three-layer mounting frame 3 and the screen in it to vibrate, realizing the three-stage screening of the bait according to size. The material screened at each stage is guided to its corresponding positioning tube 5 and discharge tube 6 area. By independently controlling the drive motor 73 of each layer to rotate the screw 74, the moving seat 75 is pushed, which drives the discharge tube 6 to slide along the slider 10 of the positioning tube 5. The extension length of the material discharge port at each stage can be flexibly and accurately adjusted to adapt to different collection or conveying needs. The buffer spring 91 and gasket 92 behind the mounting plate 8 provide protection at the end of the stroke.
[0027] Through the above steps, by using a drive component as a power source, the discharge pipe 6 can be precisely controlled to slide laterally along the outer wall of the positioning pipe 5 during operation. The adjustable stroke of the discharge pipe 6 allows the equipment to adapt to the operation requirements of material frames of different sizes. At the same time, by continuously changing the horizontal position of the discharge pipe 6, the landing point of the bait in the material frame is dynamically distributed, thereby significantly improving the uniformity of feeding. This completely solves the problem of bait accumulation caused by the traditional fixed discharge pipe 6, and achieves a more optimized operation effect. This solves the problems of the existing bait screen discharge channel not being able to extend or retract, being inconvenient to adapt to the material frame, and the concentrated falling material easily accumulating into a cone shape, requiring frequent shaking to prevent overflow.
Claims
1. A multi-stage bait sorting screen device, comprising a base (1); characterized in that: It also includes a positioning tube (5) and a discharge tube (6). A vibration motor is installed inside the base (1). Multiple vibration springs (2) distributed in a circle are installed on the top of the base (1). Three vertically arranged mounting frames (3) are installed on the top of the vibration springs (2). Fixing screws (4) are provided on the outer side of the three mounting frames (3). The three mounting frames (3) are fixed together by fixing screws (4). The vibration motor is used to drive the mounting frames (3) to vibrate. A screen is installed inside the three mounting frames (3). A positioning tube (5) is connected to the outer side of the three mounting frames (3). The discharge tube (6) is slidably connected to the outer side of the positioning tube (5). A moving mechanism is installed on the top of the positioning tube (5). The moving mechanism is used to drive the discharge tube (6) to move.
2. The multi-stage bait sorting screen device according to claim 1, characterized in that: The moving mechanism includes a mounting component and a driving component. The mounting component is used to fix the driving component, and the driving component is used to drive the discharge pipe (6) to slide along the outer wall of the positioning pipe (5).
3. The multi-stage bait sorting screen device according to claim 1, characterized in that: The mounting assembly includes a fixing plate (71) and a mounting plate (72); the fixing plate (71) is mounted on the top of the positioning tube (5), and the fixing plate (71) is fixed to the positioning tube (5) by fixing screws (4). The mounting plate (72) is provided on the top of the fixing plate (71).
4. The multi-stage bait sorting screen device according to claim 1, characterized in that: The drive assembly includes a drive motor (73), a lead screw (74), and a movable seat (75); the drive motor (73) is mounted on the rear side of the fixed plate (71), the lead screw (74) is rotatably connected to the front side of the fixed plate (71), the output end of the drive motor (73) is fixedly connected to the rear end of the lead screw (74), the drive motor (73) is used to drive the lead screw (74) to rotate, the movable seat (75) is provided on the outer side of the lead screw (74), the movable seat (75) is threadedly connected to the lead screw (74), and the movable seat (75) is fixedly connected to the discharge pipe (6).
5. The multi-stage bait sorting screen device according to claim 4, characterized in that: The front end of the lead screw (74) is provided with a mounting plate (8), and a buffer assembly is provided on the rear side of the mounting plate (8).
6. The multi-stage bait sorting screen device according to claim 1, characterized in that: The buffer assembly includes a buffer spring (91) and a pad (92); a plurality of buffer springs (91) arranged in a circular pattern are installed on the rear side of the mounting plate (8), and a pad (92) is provided at the end of the buffer spring (91) away from the mounting plate (8).
7. The multi-stage bait sorting screen device according to claim 1, characterized in that: Slider (10) is installed on both the left and right sides of the positioning tube (5), and slide groove (11) is opened on both the left and right sides of the inside of the discharge tube (6). The slider (10) and the slide groove (11) are slidably connected.