Automatic leaf feeding machine for young silkworms
By combining the design of an inverted trapezoidal feeding box and a lawn-type turning conveyor belt with leaf-picking rollers, the problems of complex structure and high energy consumption of existing silkworm leaf feeding equipment have been solved, achieving uniform distribution of mulberry leaves and healthy feeding, thus meeting the needs of modern silkworm farming.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI UNIV
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-19
AI Technical Summary
Existing silkworm feeding equipment has a complex structure, and mulberry leaves easily get stuck on the rollers, making them difficult to clean and posing health risks. It also has high energy consumption and noise levels, making it difficult to meet the needs of modern, large-scale, and intelligent silkworm farming.
The system uses an inverted trapezoidal feeding box and a lawn-type turning conveyor belt combined with leaf-picking rollers to disperse and evenly feed mulberry leaves. A single drive motor drives multiple conveyor belts and leaf-picking rollers, simplifying the structure and reducing energy consumption.
It achieves uniform dispersion of mulberry leaves, avoids the impact of residual and deteriorated mulberry leaves on the health of silkworms, reduces equipment complexity and energy consumption, and also reduces noise, thus meeting the needs of modern silkworm farming.
Smart Images

Figure CN224250489U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of silkworm rearing equipment technology, specifically relating to an automatic leaf feeding machine for small silkworms. Background Technology
[0002] Silkworm rearing has a history of over 5,000 years in my country. However, with the further advancement of industrialization and urbanization, the rural labor force has gradually shifted to urban areas, severely impacting the labor-intensive silkworm production. To maintain the stable development of silkworm production, it is essential to change the existing production model, which is incompatible with modern development requirements, and achieve labor-saving and efficient silkworm rearing. Traditional silkworm rearing still relies primarily on manual feeding of leaves, making it difficult to adapt to modern, large-scale, and intelligent development.
[0003] To improve silkworm rearing efficiency, existing technologies disclose auxiliary equipment for silkworm rearing. For example, patent CN117652462A discloses an automated silkworm rearing device, including a frame, a silkworm frame conveyor belt mounted on the frame for conveying silkworm frames, and a leaf feeding device mounted on the frame for outputting mulberry leaf fragments. A spreading conveyor belt for spreading mulberry leaves is arranged parallel above the silkworm frame conveyor belt, with its discharge end recessed relative to the discharge end of the silkworm frame conveyor belt. A spreading cylinder for receiving mulberry leaf fragments output by the leaf feeding device is located between the leaf feeding device and the spreading conveyor belt. The spreading cylinder is cylindrical and capable of rotation. Several spreading ports are evenly distributed around the bottom of the spreading cylinder, located above the feed surface of the spreading conveyor belt at its inlet end. This equipment can effectively improve the uniformity of mulberry leaf feeding, help save mulberry leaf quantity, and control rearing costs. However, the existing technology still has the following drawbacks: the structure of the spreading cylinder for dispersing mulberry leaves is complex. Multiple spreading ports are set around the bottom of the spreading cylinder, and short rollers with serrated surfaces are set below each spreading port to disperse the mulberry leaves. This arrangement not only greatly increases the complexity of the spreading cylinder structure, but also makes it difficult to clean the mulberry leaves from getting stuck on the short rollers. After a long period of use, the mulberry leaves on the short rollers may become moldy or deteriorate, and when mulberry leaves are added again, they may be mixed in, which can easily lead to disease in the silkworms and is detrimental to their health. In addition, the drive motor needs to rotate the entire spreading cylinder containing mulberry leaves, which requires a large-power motor and is not conducive to energy conservation. Furthermore, the spreading cylinder, each conveyor belt, and the long rollers in this equipment all require independent motor control, which not only results in high energy consumption, but also increases noise due to the simultaneous operation of the motors.
[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention
[0005] The present invention aims to overcome the shortcomings of the prior art and provide an automatic leaf feeding machine for small silkworms.
[0006] The technical solution of this utility model is as follows:
[0007] The automatic silkworm leaf feeder includes a base frame, a feeding box, a mulberry leaf conveyor belt, a leaf-picking roller, and a silkworm tray conveyor belt. The silkworm tray conveyor belt is set on the base frame. The mulberry leaf conveyor belt is fixedly set above the silkworm tray conveyor belt near the feeding end. The mulberry leaf conveyor belt is used to transport finely chopped mulberry leaves. The mulberry leaf conveyor belt is shorter than the silkworm tray conveyor belt and its two ends are recessed relative to the silkworm tray conveyor belt. The feeding box and the leaf-picking roller are arranged sequentially above the mulberry leaf conveyor belt from its feeding end to its discharging end.
[0008] The mulberry leaf conveyor belt is fixed by support frame I, which is fixedly connected to the base frame;
[0009] The leaf-picking roller is set perpendicular to the length direction of the mulberry leaf conveyor belt. The length of the leaf-picking roller is greater than the width of the mulberry leaf conveyor belt. Leaf-picking brushes are evenly arranged on the surface of the leaf-picking roller. The outer end of the leaf-picking brushes is higher than the belt surface of the mulberry leaf conveyor belt and close to the belt surface of the mulberry leaf conveyor belt.
[0010] The feeding box is an inverted trapezoidal structure with openings at the top and bottom. The bottom of the feeding box is higher than the upper surface of the mulberry leaf conveyor belt. The box is surrounded by baffles and a turning conveyor belt. The turning conveyor belt is inclined and has a lawn-like pattern evenly distributed on its outer surface. The side of the turning conveyor belt facing the inside of the feeding box moves from bottom to top.
[0011] The sprocket at one end of the leaf-picking roller and the drive wheel of the turning conveyor belt and the mulberry leaf conveyor belt are respectively connected to the output end of the drive motor through chain I, chain II and chain III, and the drive wheel of the silkworm tray conveyor belt is connected to motor I.
[0012] The two ends of the leaf-pulling roller are rotatably connected to the support base, and the support base is fixedly connected to the support frame I.
[0013] The automatic silkworm leaf feeder of this application also includes a lime feeder, which is closer to the feed end of the silkworm tray conveyor belt than the mulberry leaf conveyor belt. The lime feeder is arranged perpendicular to the length direction of the silkworm tray conveyor belt and is a cuboid structure with an open top. The bottom of the lime feeder is higher than the surface of the silkworm tray conveyor belt, and the bottom of the lime feeder is a screen structure.
[0014] Both ends of the lime feeder are connected to the base frame via elastic elements, and a vibrating motor is installed on the lime feeder.
[0015] The elastic element is a spring.
[0016] The feeding box is fixed above the mulberry leaf conveyor belt by support frame II, which is fixed on support frame I.
[0017] The beneficial effects of this utility model are as follows:
[0018] 1. The leaf feeding machine of this utility model has a simple structure as a feeding box for dispersing mulberry leaves. It only requires setting one side of the feeding box as an inclined turning conveyor belt and setting the surface of the conveyor belt as a lawn-shaped pattern. When the turning conveyor belt runs upward, it can turn the mulberry leaves in the feeding box and make them evenly conveyed out from the lower opening. The simple structure can achieve the effect of evenly dispersing mulberry leaves.
[0019] 2. The leaf feeding machine described in this utility model uses a turning conveyor belt and leaf-dispersing rollers to fully and evenly disperse the mulberry leaves, eliminating the problem of mulberry leaves getting stuck in the equipment and being difficult to clean. This avoids the adverse effects on the health of silkworms caused by residual and deteriorated mulberry leaves falling into the silkworm trays along with fresh mulberry leaves.
[0020] 3. The leaf feeding machine described in this utility model only requires one drive motor to simultaneously drive the turning conveyor belt and the leaf-picking roller to disperse the mulberry leaves evenly. At the same time, it can also drive the mulberry leaf conveyor belt. The drive motor can simultaneously drive the turning conveyor belt, the leaf-picking roller and the mulberry leaf conveyor belt, which are very light even when mulberry leaves are put in. This simplifies the equipment structure, saves energy, and reduces the noise generated by each structure having its own motor. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the silkworm tray conveyor belt discharge direction of the automatic silkworm leaf feeder of this utility model;
[0022] Figure 2 This is a three-dimensional structural diagram of the feeding direction of the silkworm tray conveyor belt of the automatic silkworm leaf feeder of this utility model;
[0023] Figure 3 This is a side view of the automatic silkworm leaf feeder described in this utility model;
[0024] The serial numbers and their corresponding structure names in the diagram are as follows:
[0025] 1-Base frame, 2-Feeding box, 3-Mulberry leaf conveyor belt, 4-Leaf-picking roller, 5-Silkworm tray conveyor belt, 6-Support frame I, 7-Leaf-picking brush, 8-Baffle, 9-Turning conveyor belt, 10-Sprocket, 11-Chain I, 12-Chain II, 13-Drive motor, 14-Chain III, 15-Motor I, 16-Support base, 17-Lime feeder, 18-Spring, 19-Vibration motor, 20-Support frame II. Detailed Implementation
[0026] The present invention will be further described below with reference to the accompanying drawings.
[0027] Example
[0028] like Figure 1-3 The automatic silkworm leaf feeder shown includes a base frame 1, a feeding box 2, a mulberry leaf conveyor belt 3, a leaf-picking roller 4, and a silkworm tray conveyor belt 5. The silkworm tray conveyor belt is set on the base frame. The mulberry leaf conveyor belt is fixedly set above the silkworm tray conveyor belt near the feeding end. The mulberry leaf conveyor belt is used to convey finely chopped mulberry leaves. The mulberry leaf conveyor belt is shorter than the silkworm tray conveyor belt and its two ends are recessed relative to the silkworm tray conveyor belt. The feeding box and the leaf-picking roller are arranged sequentially above the mulberry leaf conveyor belt from its feeding end to its discharging end.
[0029] The mulberry leaf conveyor belt is fixed by support frame I6, which is fixedly connected to the base frame;
[0030] The leaf-picking roller is set perpendicular to the length direction of the mulberry leaf conveyor belt. The length of the leaf-picking roller is greater than the width of the mulberry leaf conveyor belt. The surface of the leaf-picking roller is provided with uniform leaf-picking brushes 7. The outer end of the leaf-picking brushes is higher than the belt surface of the mulberry leaf conveyor belt and close to the belt surface of the mulberry leaf conveyor belt.
[0031] The feeding box is an inverted trapezoidal structure with openings at the top and bottom. The bottom of the feeding box is higher than the upper surface of the mulberry leaf conveyor belt. It is surrounded by baffles 8 and a turning conveyor belt 9. The turning conveyor belt is inclined and has a lawn-like pattern evenly distributed on its outer surface. The side of the turning conveyor belt facing the inside of the feeding box moves from bottom to top.
[0032] The sprocket 10 at one end of the leaf-picking roller and the drive wheels of the turning conveyor belt and mulberry leaf conveyor belt are respectively connected to the output end of the drive motor 13 via chains I11, II12, and III14. The drive wheel of the silkworm tray conveyor belt is connected to motor I15. Finely chopped mulberry leaves are poured into the upper end of the turning conveyor belt 9, and the drive motor 13 is started. The output shaft of the drive motor... Figure 3 The view shown depicts a clockwise rotation. The drive motor, via chain II12, rotates the material-turning conveyor belt clockwise, causing it to move upwards inside the feeding box. Simultaneously, the leaf-dispensing roller and mulberry leaf conveyor belt rotate clockwise under the action of the drive motor. Motor I drives the silkworm tray conveyor belt along... Figure 3 Rotate clockwise in the direction shown in the view.
[0033] The two ends of the leaf-removing roller 4 are rotatably connected to the support base 16, and the support base is fixedly connected to the support frame I.
[0034] The automatic silkworm leaf feeder of this application also includes a lime feeder 17, which is closer to the feed end of the silkworm tray conveyor belt than the mulberry leaf conveyor belt. The lime feeder is arranged perpendicular to the length direction of the silkworm tray conveyor belt and is a cuboid structure with an open top. The bottom of the lime feeder is higher than the surface of the silkworm tray conveyor belt, and the bottom of the lime feeder is a screen structure.
[0035] Both ends of the lime feeder are connected to the base frame via elastic elements 18, and a vibration motor 19 is installed on the lime feeder.
[0036] The elastic element is a spring.
[0037] The feeding box is fixed above the mulberry leaf conveyor belt by support frame II20, and support frame II is fixed on support frame I.
[0038] The working principle of the automatic silkworm leaf feeder described in this utility model is as follows:
[0039] When it is time to feed the silkworms in the trays, sieved lime is loaded into the lime feeder, and the trays containing the silkworms are placed on the feed end of the tray conveyor belt 5. The vibrating motor 19 is started, and the lime in the lime feeder 17 is evenly spread onto the trays through the screen at the bottom of the vibrating motor. At the same time, finely chopped mulberry leaves are poured into the upper end of the turning conveyor belt 9, and the drive motor 13 is started. The output shaft of the drive motor... Figure 3 The view shown depicts a clockwise rotation. The drive motor, via chain II12, rotates the turning conveyor belt clockwise, causing it to move upwards inside the feeding box, thus turning over the small mulberry leaves. The evenly distributed lawn-like pattern on the outer surface of the turning conveyor belt helps to disperse the small mulberry leaves evenly. As the small mulberry leaves are turned and scattered upwards by the conveyor belt, they fall under gravity into the opening at the bottom of the feeding box. After passing through the opening at the bottom of the feeding box, the small mulberry leaves are dispersed onto the mulberry leaf conveyor belt, which then moves towards the leaf-dispensing roller 4. Simultaneously, the leaf-dispensing roller rotates clockwise under the action of the drive motor, and the leaf-dispensing brush 7 further disperses and evenly distributes the mulberry leaves on the conveyor belt. After being evenly dispersed by the leaf-dispensing roller, the mulberry leaves fall from the discharge end of the mulberry leaf conveyor belt into the silkworm trays that are running on the silkworm tray conveyor belt below. This achieves an integrated operation of spreading lime and feeding leaves. If only lime needs to be sprinkled during the dormant period, mulberry leaves do not need to be put into the lower hopper. Instead, lime is put into the lime feeder and the vibrating motor is started. This way, the lime sprinkling operation can be completed automatically.
[0040] The leaf feeding machine described in this utility model has a simple structure as a feeding box for dispersing mulberry leaves. It only requires setting one side of the feeding box as an inclined turning conveyor belt and setting the surface of the conveyor belt as a lawn-shaped pattern. When the turning conveyor belt runs upward, it can turn the mulberry leaves in the feeding box and send them out evenly from the bottom opening. The simple structure can achieve the effect of evenly dispersing mulberry leaves.
[0041] The leaf feeder described in this utility model uses a turning conveyor belt and leaf-dispersing rollers to fully and evenly disperse the mulberry leaves, thus eliminating the problem of mulberry leaves getting stuck in the equipment and being unable or difficult to clean.
Claims
1. An automatic leaf feeder for silkworms, characterized in that: Includes a base frame (1), a feeding box (2), a mulberry leaf conveyor belt (3), a leaf-picking roller (4), and a silkworm tray conveyor belt (5). The silkworm tray conveyor belt is set on the base frame. A mulberry leaf conveyor belt is fixedly set above the silkworm tray conveyor belt near the feeding end. The mulberry leaf conveyor belt is used to convey finely chopped mulberry leaves. The mulberry leaf conveyor belt is shorter than the silkworm tray conveyor belt and its two ends are recessed relative to the silkworm tray conveyor belt. A feeding box and a leaf-picking roller are set sequentially above the mulberry leaf conveyor belt from its feeding end to its discharging end. The mulberry leaf conveyor belt is fixed by support frame I (6), and support frame I is fixedly connected to the base frame; The leaf-picking roller is set perpendicular to the length direction of the mulberry leaf conveyor belt. The length of the leaf-picking roller is greater than the width of the mulberry leaf conveyor belt. Leaf-picking brushes (7) are evenly arranged on the surface of the leaf-picking roller. The outer end of the leaf-picking brush is higher than the belt surface of the mulberry leaf conveyor belt and close to the belt surface of the mulberry leaf conveyor belt. The feeding box is an inverted trapezoidal structure with openings at the top and bottom. The bottom of the feeding box is higher than the upper surface of the mulberry leaf conveyor belt. The box is surrounded by baffles (8) and a turning conveyor belt (9). The turning conveyor belt is inclined and has a lawn-shaped pattern evenly distributed on its outer surface. The side of the turning conveyor belt facing the inside of the feeding box runs from bottom to top. The sprocket (10) at one end of the leaf-picking roller and the drive wheels of the turning conveyor belt and the mulberry leaf conveyor belt are respectively connected to the output end of the drive motor (13) through chain I (11), chain II (12), and chain III (14), and the drive wheel of the silkworm tray conveyor belt is connected to motor I (15).
2. The automatic silkworm leaf feeder as described in claim 1, characterized in that: The two ends of the leaf-pulling roller (4) are rotatably connected to the support base (16), and the support base is fixedly connected to the support frame I.
3. The automatic silkworm leaf feeder as described in claim 1, characterized in that: It also includes a lime feeder (17), which is closer to the feed end of the silkworm tray conveyor than the mulberry leaf conveyor belt. The lime feeder is set perpendicular to the length direction of the silkworm tray conveyor belt and is a cuboid structure with an open top. The bottom of the lime feeder is higher than the surface of the silkworm tray conveyor belt and the bottom of the lime feeder is a screen structure.
4. The automatic silkworm leaf feeder as described in claim 3, characterized in that: The two ends of the lime feeder are connected to the base frame through elastic elements (18), and a vibrating motor (19) is installed on the lime feeder.
5. The automatic silkworm leaf feeder as described in claim 4, characterized in that: The elastic element is a spring.
6. The automatic silkworm leaf feeder as described in claim 1, characterized in that: The feeding box is fixed above the mulberry leaf conveyor belt by support frame II (20), and support frame II is fixed on support frame I.