Simple cocoon taking machine
By utilizing the gear and rack meshing principle and manual drive of the simple cocoon harvesting machine, the problem of high-cost automated cocoon harvesting machines failing to meet the needs of small-scale and individual farmers is solved, achieving low-cost and efficient cocoon harvesting operations to meet the needs of small-scale and individual silkworm farmers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HECHI UNIV
- Filing Date
- 2025-07-02
- Publication Date
- 2026-05-19
AI Technical Summary
Existing automated and intelligent cocoon harvesting machines are costly, difficult for small-scale silkworm farmers and individual households to operate, and the existing equipment cannot meet their cocoon harvesting needs.
Design a simple cocoon extraction machine that uses the gear and rack meshing principle between the cocoon extraction roller and the square cluster. The cocoon extraction roller is driven by human power to rotate and press out the cocoons. The machine frame is equipped with cocoon release strips and spring seats to protect the square cluster. The structure is simple and does not require power connection.
It achieves low-cost and efficient cocoon harvesting operations, meets the needs of small-scale farmers and individual farmers, is easy to maintain, safe and practical, and suitable for small-scale farmers and individual farmers.
Smart Images

Figure CN224250490U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of silkworm cocoon farming equipment technology, and in particular to a simple cocoon harvesting machine. Background Technology
[0002] A cocoon harvesting machine is a specialized tool used in the sericulture industry to harvest cocoons from mature silkworms after they have spun them in a cocooning frame. Experts and researchers both domestically and internationally have conducted extensive research and design work on silkworm cocoon harvesting, evolving from manual harvesting to simple mechanical harvesting and then to automatic (electric) harvesting, resulting in numerous innovative cocoon harvesting machines. Existing designs largely focus on automation and intelligence, which inevitably leads to high costs and fails to meet the needs of small-scale and individual silkworm farmers. Furthermore, the majority of small-scale and individual silkworm farmers currently have low levels of education, and some older farmers are unable to skillfully operate automated and intelligent electric cocoon harvesting machines. Therefore, to meet the needs of these farmers, this application designs a low-cost, more efficient, and simpler cocoon harvesting machine than manual labor, satisfying the needs of small-scale and individual farmers for future, unpredictable development, while also promoting the development of the sericulture industry. Utility Model Content
[0003] This utility model provides a simple cocoon harvesting machine that requires no additional power connection and can be used anytime and anywhere. It features a simple structure, convenient maintenance, safety, practicality, and low cost, meeting the needs of small-scale farmers and individual farmers for cocoon harvesting.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A simple cocoon-harvesting machine includes a frame, a square cluster, a cocoon-removing roller, a spring seat, and a vertical bearing seat. The top of the frame is a worktable. Two parallel positioning strips are arranged on the worktable, the spacing between the strips being approximately equal to the width of the square cluster. A cocoon-harvesting hole, perpendicular to the two positioning strips, is located in the middle of the worktable. The cocoon-harvesting hole penetrates the worktable. A vertical bearing seat is located on each side of the positioning strip, corresponding to the cocoon-harvesting hole. The bottom of each bearing seat is fixedly connected to the worktable via a spring seat. The two ends of the cocoon-removing roller are respectively connected by shafts... The machine is rotatably connected to the vertical bearing seat; the square cluster has several holes of equal size, and the outer periphery of the cocoon-removing roller has several cocoon-removing teeth equal in number to the number of rows of holes; each cocoon-removing tooth is distributed at equal intervals corresponding to each row of holes, and each cocoon-removing tooth has several cocoon-removing teeth distributed at equal angles around the axis of the cocoon-removing roller; the square cluster slides along the two positioning strips on the worktable to pass through the cocoon-removing roller to drive the cocoon-removing roller to rotate, and each cocoon-removing tooth on the cocoon-removing roller spins along the corresponding row of holes one by one and then presses the cocoons in the holes through the cocoon-removing teeth.
[0006] Furthermore, the cocoon-removing roller includes cocoon-removing teeth, a rotating shaft, a positioning bushing, and a limiting snap ring; the rotating shaft is provided with a positioning key; the rotating shaft is provided with a positioning groove on both sides corresponding to the positioning key; each cocoon-removing tooth and each positioning bushing is provided with a connecting hole coaxially arranged with the rotating shaft, and the shape of the connecting hole matches the contour of the rotating shaft and the positioning key; the cocoon-removing teeth and the positioning bushing are alternately inserted on the rotating shaft; a limiting snap ring is engaged in each positioning groove.
[0007] Furthermore, the distance between the radial center surfaces of two adjacent cocoon-removing teeth is equivalent to the width spacing of the pores; the thickness of each cocoon-removing tooth is less than the width of each pore, the width of the top of each cocoon-removing tooth is less than the length of each pore, and the length of each cocoon-removing tooth is greater than the thickness of the pore cluster.
[0008] Furthermore, the tip of each of the cocoon-removing teeth on the same cocoon-removing tooth plate is designed as an arc structure, and the two sides of the tooth tip are rounded to transition; each of the cocoon-removing teeth gradually decreases in size from the tooth tip to the tooth root.
[0009] Furthermore, the tip to root of each of the described exfoliated teeth adopts an inner arc transition.
[0010] Furthermore, the frame is provided with a cocoon release bar perpendicular to the positioning bar inside the cocoon picking hole; the cocoon release bar is located on one side outside the maximum radius of the cocoon release roller.
[0011] Furthermore, the cocoon release strip is located on the side behind the cocoon pressing position of the cocoon release roller.
[0012] Furthermore, a cocoon receiving tray is fixedly connected to the frame below the cocoon harvesting hole, and the cocoon receiving tray is arranged at an angle to the workbench surface.
[0013] Furthermore, the spring seat includes an upper mounting plate, a lower mounting plate, and two springs; the upper mounting plate and the lower mounting plate are arranged parallel to each other at intervals, and the two springs are arranged horizontally at intervals between the upper mounting plate and the lower mounting plate. The top of each spring is fixedly connected to the bottom surface of the upper mounting plate, and the bottom of each spring is fixedly connected to the top surface of the lower mounting plate.
[0014] The beneficial effects of this utility model are:
[0015] 1) This utility model uses a cocoon-removing roller to press the square clusters to complete the cocoon harvesting work. When the square clusters are pushed into the cocoon-removing roller by manpower from the workbench, the cocoon-removing roller will rotate under the action of force. Each cocoon-removing tooth on the cocoon-removing roller is used as a gear, and the corresponding row of holes in the square cluster is used as a rack. According to the principle of gear meshing rack, the cocoons in each row of holes are pressed out one by one. The pressed cocoons fall from the cocoon harvesting holes and are collected. This utility model does not require an additional power connection and can be used anytime and anywhere. It has the characteristics of simple structure, convenient maintenance, safety and practicality, and low cost, which meets the needs of small farmers and individual farmers for cocoon harvesting.
[0016] 2) The cocoon removal work is completed by the meshing of the grid cluster and the cocoon removal roller using the principle of gear and rack meshing. The positioning bar can be used to align the cocoon removal teeth on each cocoon removal tooth with the center of each grid during operation. The cocoon removal teeth designed in this utility model can accurately mesh with the grid cluster, allowing the cocoon to smoothly detach from the grid cluster without damaging it.
[0017] 3) The machine frame is designed with cocoon release strips inside the cocoon picking holes. After the cocoons have been completely pressed out of the square cluster by the cocoon release teeth, they can make full contact with the cocoon release strips. As the square cluster continues to move forward, the cocoons in the square cluster can be separated better.
[0018] 4) The spring seat can protect the square cluster and further prevent the square cluster from getting stuck when passing through the cocoon removal roller during cocoon removal. Within the range of deformation, it can smoothly assist the cocoon removal roller 3 in pressing the cocoon out of the square cluster, while always giving the cocoon removal roller a downward pressure. Attached Figure Description
[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:
[0020] Figure 1This is a front view of the overall structure of this utility model;
[0021] Figure 2 This is a side view of the overall structure of this utility model;
[0022] Figure 3 This is a top view of the overall structure of this utility model;
[0023] Figure 4 This is a front view of the cocoon-removing roller in this utility model;
[0024] Figure 5 This is a front view of the cocoon-removing roller in this utility model;
[0025] Figure 6 This is a perspective view of the frame in this utility model;
[0026] Figure 7 This is a perspective view of the Chinese lattice cluster of this utility model;
[0027] Attached image labels:
[0028] 1-Frame, 2-Grid cluster, 3-Cocoon removal roller, 4-Spring seat, 5-Vertical bearing seat, 11-Workbench, 12-Positioning strip, 13-Cocoon picking hole, 14-Cocoon receiving tray, 15-Cocoon removal strip, 31-Cocoon removal tooth, 32-Rotating shaft, 33-Positioning bushing, 311-Cocoon removal tooth, 41-Upper mounting plate, 42-Lower mounting plate, 43-Spring. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a central component. When a component is described as "connected to" another component, it can be directly connected to the other component or may have a central component. When a component is described as "set on" another component, it can be directly set on the other component or may have a central component. When a component is described as "set in the middle," it is not simply set in the exact center, as long as it is not set within the area defined by both ends being in the middle. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0032] Reference Figures 1 to 7As shown, a simple cocoon-picking machine includes a frame 1, a square cluster 2, a cocoon-removing roller 3, a spring seat 4, and a vertical bearing seat 5. The top of the frame 1 is a worktable 11. Two parallel positioning strips 12 are provided on the worktable 11, the spacing between the positioning strips 12 being approximately equal to the width of the square cluster 2. A cocoon-picking hole 13, perpendicular to the two positioning strips 12, is located in the middle of the worktable 11. The cocoon-picking hole 13 penetrates the worktable 11. A vertical bearing seat 5 is provided on each side of the positioning strip 12 corresponding to the position of the cocoon-picking hole 13. The bottom of each vertical bearing seat 5 is fixedly connected to the worktable 11 via a spring seat 4. The cocoon-removing roller 3... Both ends are rotatably connected to a vertical bearing seat 5 via bearings; the square cluster 2 has several equally sized holes, and the outer periphery of the cocoon-removing roller 3 has several cocoon-removing teeth 31 in number equal to the number of rows of holes; each cocoon-removing tooth 31 is evenly spaced at the position of each row of holes, and each cocoon-removing tooth 31 has several cocoon-removing teeth 311 distributed at equal angles around the axis of the cocoon-removing roller; the square cluster 2 slides along the two positioning strips 12 on the worktable 11 through the cocoon-removing roller 3 to drive the cocoon-removing roller 3 to rotate, and each cocoon-removing tooth 31 on the cocoon-removing roller 3 spins along the corresponding row of holes one by one, thereby pressing out the cocoons in the holes through the cocoon-removing teeth 311. Specifically, the square cluster 2 is a hard square cluster, such as the wooden square cluster commonly used in the prior art, which is not easily deformed and can be recycled. To facilitate worker operation, improve efficiency, and simplify machine operation, the cocoon harvesting machine needs to be designed with a precisely positioned frame 1. The design of the positioning strip 12 is more conducive to placing the square clusters 2. The positioning strip 12 can be made of angle aluminum. Since the square clusters 2 are of uniform size, precise positioning can be achieved only by the positioning strips 12 on both sides of the worktable 11. During cocoon harvesting, they can pass smoothly through the cocoon removal roller 3 without damaging the square clusters, and the cocoon harvesting efficiency can be improved. A cocoon receiving tray 14 is fixedly connected to the frame 1 below the cocoon harvesting hole 13. The cocoon receiving tray 14 is arranged at an angle to the worktable 11. This invention employs a cocoon-removing roller 3 to press the square clusters 2. When the square clusters 2 are manually pushed into the cocoon-removing roller 3 from the workbench, the roller 3 rotates under the force. Each cocoon-removing tooth 31 on the roller 3 acts as a gear, and the corresponding row of holes in the square clusters 2 acts as a rack. Based on the principle of gear meshing with racks, the cocoons in each row of holes are pressed out one by one. The pressed-out cocoons fall through the collection holes 13 and are collected, completing the cocoon harvesting process. This invention requires no additional power connection, can be used anytime and anywhere, and features a simple structure, convenient maintenance, safety, practicality, and low cost, meeting the needs of small-scale farmers and individual growers for cocoon harvesting.
[0033] Please refer to Figure 3 and Figure 5As shown, the cocoon-removing roller 3 includes cocoon-removing toothed plates 31, a rotating shaft 32, a positioning bushing 33, and a limiting snap ring (not shown in the figure); the rotating shaft 32 is provided with a positioning key (not shown in the figure); the rotating shaft 32 is provided with a positioning groove on both sides corresponding to the positioning key; each cocoon-removing toothed plate 31 and each positioning bushing 33 is provided with a connecting hole 312 coaxially arranged with the rotating shaft 32, and the shape of the connecting hole 312 matches the contour of the rotating shaft combined with the positioning key; the cocoon-removing toothed plates 31 and the positioning bushing 33 are alternately inserted on the rotating shaft 32; a limiting snap ring is engaged in each positioning groove. Since the cocoon removal process is completed through a gear and rack meshing principle between the square cluster 2 and the cocoon removal roller 3, during operation, the cocoon removal teeth 311 on each cocoon removal tooth 31 need to be aligned with the center of each hole. The distance between the radial center surfaces of two adjacent cocoon removal teeth 311 is approximately equal to the width spacing of the holes. Alignment is achieved by aligning the first row of holes in the square cluster 2 with the first cocoon removal tooth of the cocoon removal roller. Therefore, the position of the positioning column determines whether the cocoon removal roller can be aligned with the square cluster. To ensure that the cocoons can smoothly detach from the square cluster 2, the volume of the cocoon removal teeth 311 should not be too large, so that they can accurately mesh with the square cluster 2 without damaging it. Therefore, the thickness of each of the cocoon-removing teeth 311 is less than the width of each of the holes. When aligned, the center surface of each cocoon-removing tooth 311 should coincide with the center surface of the corresponding hole. The width of the tooth tip of each cocoon-removing tooth 311 is less than the length of each hole, and the length of each cocoon-removing tooth 311 is greater than the thickness of the square cluster 2. This ensures that when the cocoon-removing roller 3 rotates, the tooth tips of the cocoon-removing teeth 311 can completely push the cocoon out of the hole. The spacing between two adjacent cocoon-removing teeth 311 is based on the corresponding tooth tip spacing. For example, if the size of the conventional square cluster 2 holes is L = 41mm, width B = 29mm, and thickness H = 28mm, then the outline size of the cocoon-removing tooth is: tooth tip width = 30mm, tooth thickness = 20mm, and tooth length = 40mm. To achieve better meshing and cocoon removal effect, the number of teeth and tooth pitch of the cocoon-removing teeth 311 on the cocoon-removing tooth plate can be designed according to the spacing of the holes in the actual square cluster. The calculation method can refer to the requirements of gear meshing. The machine uses a pressing method to extract cocoons. Since silkworms are relatively soft, in order to ensure that the extracted cocoons are intact or not damaged, and to improve the quality of the cocoons, the cocoon extraction teeth 311 need to be designed in an arc shape. Therefore, the tooth tip of each cocoon extraction tooth 311 on the same cocoon extraction tooth plate 31 is designed as an arc structure.In order to successfully remove the cocoons while minimizing damage to the grid clusters, the connection between the root and tip of the cocoon-removing tooth 311 needs to have a certain arc or angle. Therefore, the two sides of the tooth tip are rounded. Each cocoon-removing tooth 311 gradually decreases in size from the tooth tip to the tooth root, and the tooth tip to the tooth root of each cocoon-removing tooth 311 is transitioned by an inner arc. This avoidance design can prevent the cocoon-removing tooth 311 from pressing on the top of the side wall of the grid when entering or leaving the grid, and only allow the tooth tip of the cocoon-removing tooth 311 to push the middle of the side wall of the grid, thereby avoiding damage to the grid clusters 2.
[0034] Silkworm cocoons are formed by spinning silk and are themselves wrapped around the grid cluster 2. Separation is somewhat difficult, and during the rotation of the cocoon-removing roller 3, the cocoons often fail to completely detach from the grid cluster 2, inevitably causing difficulties in cocoon removal and reducing efficiency. Furthermore, incomplete cocoon removal by the machine necessitates secondary processing by workers, increasing their workload. To solve this problem and ensure complete detachment of the cocoons from the grid cluster 2 during removal, a mechanism that can break the silk threads needs to be designed. This mechanism should activate just as the cocoon-removing roller 3 finishes its work and leaves the grid cluster 2, breaking the silk threads. The reciprocating motion of the grid cluster 2 then separates the cocoons, allowing them to detach. Therefore, please refer to... Figure 6 As shown, the frame 1 has a cocoon release bar 15 perpendicular to the positioning bar 12 located inside the cocoon collecting hole. The cocoon release bar 15 is a solid round bar that spans the cocoon collecting hole 13 and can be fixed to the frame 1 by welding steel. The cocoon release bar 15 is located on one side outside the maximum radius of the cocoon removal roller 3, specifically behind the cocoon pressing position of the cocoon removal roller 3. After the cocoon has been completely pressed out of the square cluster 2 by the cocoon removal teeth 31, it can make sufficient contact with the cocoon release bar 15. As the square cluster 2 continues to advance, the cocoons in the square cluster 2 can be better separated.
[0035] The spring seat 4 includes an upper mounting plate 41, a lower mounting plate 42, and two springs 43. The upper mounting plate 41 and the lower mounting plate 42 are arranged parallel to each other vertically and spaced apart. The two springs 43 are arranged horizontally and spaced apart between the upper mounting plate 41 and the lower mounting plate 42. The top of each spring 43 is fixedly connected to the bottom surface of the upper mounting plate 41, and the bottom of each spring 43 is fixedly connected to the top surface of the lower mounting plate 42. The spring seat 4 can protect the square cluster 2 and further prevent the square cluster 2 from getting stuck when passing through the cocoon removal roller during cocoon removal. Within the range of deformation, it can smoothly assist the cocoon removal roller 3 in pressing the cocoons out of the square cluster 2, while always applying a downward pressure to the cocoon removal roller 3.
[0036] The specific operating steps of this utility model are as follows: Two workers are required. One worker is responsible for placing the square cluster with silkworm cocoons on the workbench and feeding it to the front end of the cocoon removal roller 3. The square cluster 2 with silkworm cocoons is placed on the workbench and aligned according to the positioning bar 12. After the positioning is complete, a certain pushing force is applied to push the square cluster 2 to slide towards the cocoon removal roller 3. The other worker is responsible for pulling the square cluster 2 from the outlet direction of the cocoon removal roller 3. During the pulling process, attention should be paid to the occurrence of jamming. After the entire square cluster 2 has been decocted, it is checked in time to see if any silkworm cocoons are missed, and the square cluster 2 is collected and put away.
[0037] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the scope of the technical solution of this utility model.
Claims
1. A simple cocoon harvesting machine, characterized in that, The machine includes a frame, a square cluster, a cocoon-removing roller, a spring seat, and a vertical bearing seat. The top of the frame forms a worktable. Two parallel positioning strips are arranged on the worktable, the spacing between which is approximately equal to the width of the square cluster. A cocoon-collecting hole, perpendicular to the two positioning strips, is located in the middle of the worktable. The cocoon-collecting hole extends through the worktable. A vertical bearing seat is located on each side of the positioning strip, corresponding to the cocoon-collecting hole. The bottom of each vertical bearing seat is fixedly connected to the worktable via a spring seat. Both ends of the cocoon-removing roller are connected to a [missing information - likely a specific type of bearing seat]. The vertical bearing seat is rotatably connected; the square cluster has several holes of equal size, and the outer circumference of the cocoon-removing roller has several cocoon-removing teeth equal in number to the number of rows of holes; each cocoon-removing tooth is distributed at equal intervals to each row of holes, and each cocoon-removing tooth has several cocoon-removing teeth distributed at equal angles around the axis of the cocoon-removing roller; the square cluster slides along the two positioning strips on the worktable to pass through the cocoon-removing roller to drive the cocoon-removing roller to rotate, and each cocoon-removing tooth on the cocoon-removing roller spins along the corresponding row of holes one by one, thereby pressing out the cocoons in the holes through the cocoon-removing teeth.
2. The simple cocoon harvesting machine according to claim 1, characterized in that, The cocoon-removing roller includes cocoon-removing teeth, a rotating shaft, a positioning bushing, and a limiting spring. A positioning key is provided on the rotating shaft. A positioning groove is provided on each side of the rotating shaft corresponding to the positioning key. Each cocoon-removing tooth and each positioning bushing has a connecting hole coaxially arranged with the rotating shaft, and the shape of the connecting hole matches the contour of the rotating shaft and the positioning key. The cocoon-removing teeth and the positioning bushing are alternately inserted onto the rotating shaft. A limiting spring is engaged in each positioning groove.
3. A simple cocoon harvesting machine according to claim 2, characterized in that, The distance between the radial center surfaces of two adjacent cocoon-removing teeth is equivalent to the width spacing of the pores; the thickness of each cocoon-removing tooth is less than the width of each pore, the width of the top of each cocoon-removing tooth is less than the length of each pore, and the length of each cocoon-removing tooth is greater than the thickness of the pore cluster.
4. A simple cocoon harvesting machine according to claim 3, characterized in that, The top of each of the cocoon-removing teeth on the same cocoon-removing tooth plate is designed as an arc structure, and the two sides of the top of the tooth are rounded. Each cocoon-removing tooth gradually decreases in size from the top of the tooth to the root of the tooth.
5. A simple cocoon harvesting machine according to claim 4, characterized in that, The transition from the tip to the root of each of the described exfoliated teeth is achieved using an inner arc.
6. A simple cocoon harvesting machine according to claim 1, characterized in that, The frame is located inside the cocoon-collecting hole and has a cocoon release bar perpendicular to the positioning bar; the cocoon release bar is located on one side outside the maximum radius of the cocoon-removing roller.
7. A simple cocoon harvesting machine according to claim 6, characterized in that, The cocoon release strip is located on one side behind the cocoon pressing position of the cocoon release roller.
8. A simple cocoon harvesting machine according to claim 1, characterized in that, The frame is fixedly connected to a cocoon receiving tray below the cocoon harvesting hole, and the cocoon receiving tray is arranged at an angle to the workbench surface.
9. A simple cocoon harvesting machine according to claim 1, characterized in that, The spring seat includes an upper mounting plate, a lower mounting plate, and two springs; the upper and lower mounting plates are arranged parallel to each other and spaced apart, and the two springs are arranged horizontally spaced between the upper and lower mounting plates. The top of each spring is fixedly connected to the bottom surface of the upper mounting plate, and the bottom of each spring is fixedly connected to the top surface of the lower mounting plate.