Automatic mesh size control device of automatic netting machine

Abstract

The utility model belongs to the technical field of netting machines, and particularly relates to an automatic mesh size control device of an automatic netting machine, which comprises a rack, rotating rollers are rotatably connected to the inner sides of the bottom end and the top end of the rack, and a plurality of sliding plates are radially, uniformly and slidably connected to the inner sides of the rotating rollers towards the outer sides. A winding piece is fixed to the end, away from the rotating roller, of the sliding plate, a moving part is arranged in the center of the interior of the rotating roller and comprises a first moving column, a second moving column and a moving boss, the moving boss is arranged between the first moving column and the second moving column, and the diameter of the first moving column is smaller than that of the second moving column; the small-diameter end of the movable boss is connected with the first movable column, the large-diameter end of the movable boss is connected with the second movable column, and a contact platform is arranged at the position, close to the first movable column, the second movable column and the movable boss, of the sliding plate. According to the utility model, the radius of the winding roller or the let-off roller can be adjusted, so that the mesh size can be accurately adjusted.

Description

Technical Field

[0001] This utility model belongs to the field of web weaving machine technology, specifically relating to an automatic control device for mesh size of an automatic web weaving machine. Background Technology

[0002] In the fishing industry, fishing nets are used as fishing tools, and the size of their mesh directly affects the fishing effect and the selectivity of the target species. In order to meet the fishing needs of different types of fish, the mesh size of fishing nets needs to be flexibly adjusted. At present, there are various types of automatic net-making machines on the market. These machines can automatically adjust the mesh size as needed, thereby improving fishing efficiency and selectivity.

[0003] For example, the Chinese utility model patent publication number CN205775150U describes a fishing net weaving machine with adjustable mesh size. This patent proposes a solution to adjust the mesh size by changing the speed of the drive motor. This technology adjusts the speed of the motor, thereby changing the linear speed of the relevant components in the weaving machine, in order to achieve the purpose of adjusting the mesh size.

[0004] However, this technology has certain limitations. When the speed range of the servo motor reaches its limit, it is impossible to change the linear speed by further adjusting the speed. Or, after adjusting the speed, it may affect the motion synchronization of other components, making it impossible to achieve more precise mesh size adjustment.

[0005] Therefore, the performance of existing automatic net-making machines is limited when faced with specific fishery needs, especially when smaller or more precise mesh size adjustments are required. This not only affects fishing efficiency but may also lead to less than ideal selective fishing for specific fish species, thereby impacting the sustainable use of fishery resources.

[0006] To address the aforementioned problems, this invention proposes a novel automatic mesh size control device for automatic net-making machines. It aims to overcome the shortcomings of existing technologies and provide a solution that can still achieve precise mesh size adjustment even when the servo motor speed range reaches its limit. Through the implementation of this invention, the applicability and flexibility of automatic net-making machines can be further improved, meeting diverse fishing needs. Utility Model Content

[0007] The purpose of this invention is to provide an automatic control device for the mesh size of an automatic web forming machine, which can adjust the radius of the winding roller or the warp feed roller, thereby achieving precise adjustment of the mesh size.

[0008] The specific technical solution adopted by this utility model is as follows:

[0009] An automatic netting machine mesh size control device includes a frame, with rotating rollers rotatably connected to the inner sides of the bottom and top of the frame. Multiple sliding plates are evenly slidably connected radially outward from the inside of the rotating rollers, and a winding sheet is fixed to the end of the sliding plate away from the rotating roller.

[0010] A moving component is provided at the center of the interior of the rotating roller. The moving component includes a first moving column, a second moving column, and a moving boss.

[0011] The movable boss is disposed between the first movable column and the second movable column, and the diameter of the first movable column is smaller than that of the second movable column. The end of the movable boss with a smaller diameter is connected to the first movable column, and the end of the movable boss with a larger diameter is connected to the second movable column. A contact platform is provided on the sliding plate near the first movable column, the second movable column and the movable boss.

[0012] The contact platform includes a sliding inclined surface, a sliding first plane, and a sliding second plane, wherein the sliding inclined surface contacts the movable boss, the sliding first plane contacts the first movable column, and the sliding second plane contacts the second movable column;

[0013] A drive mechanism is installed at the center of the inside of the rotating roller. The drive mechanism is used to drive the first moving column, the second moving column and the moving boss to move.

[0014] The driving mechanism includes a threaded rod rotatably connected inside the rotating roller, and the threaded rod is threadedly connected to the moving part. At least one limiting piece is fixed on the outside of the moving part and between two adjacent sliding plates, and the limiting piece is slidably connected to the inner wall of the rotating roller. A drive motor is installed on one side of the frame, and the output end of the drive motor passes through the frame and the rotating roller and is connected to the threaded rod.

[0015] At least one locking block is provided on the outer side of the threaded rod, and a fixing ring is fixed on the inner wall of the rotating roller and located on the outer side of the locking block. The inner wall of the fixing ring is uniformly provided with locking grooves, and the locking block is engaged in the locking grooves.

[0016] Both ends of the rotating roller located at the bottom of the frame are fixed with contraction springs, and a clamping plate is fixed at the end of the contraction spring away from the rotating roller.

[0017] A first magnet is provided on the outside of the moving part, and a second magnet is fixed to one end of the contact platform near the moving part. The first magnet and the second magnet attract each other.

[0018] A flexible pad is provided on the outer side of the winding sheet.

[0019] The technical effects achieved by this utility model are as follows:

[0020] This invention uses the left and right movement of the moving parts to push the sliding plate and the winding sheet to move outside the rotating roller, thereby adjusting the radius of the winding roller or the warp feed roller. Even when the motor speed range reaches its limit, it can still achieve a solution for precise adjustment of the mesh size, thus improving the applicability and flexibility of the automatic web forming machine. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure between the drive motor, the rotating roller and the sliding plate in this utility model;

[0023] Figure 3 This is a cross-sectional view of the rotating roller in this utility model;

[0024] Figure 4 This is a schematic diagram of the structure between the movable boss, the sliding inclined plane, and the threaded rod in this utility model;

[0025] Figure 5 This is a schematic diagram of the structure between the sliding plate, the retraction spring, and the locking plate in this utility model;

[0026] Figure 6 This is a cross-sectional view of the fixing ring in this utility model.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Frame; 2. Rotating roller; 3. Sliding plate; 4. Winding sheet; 5. First moving column; 6. Second moving column; 7. Moving boss; 8. Sliding inclined plane; 9. Threaded rod; 10. Limiting plate; 11. Drive motor; 12. Fixing ring; 13. Slot; 14. Locking block; 15. Retraction spring; 16. Locking plate; 17. First sliding plane; 18. Second sliding plane. Detailed Implementation

[0029] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0030] like Figures 1-6As shown, an automatic netting machine mesh size control device includes a frame 1. Rotating rollers 2 are rotatably connected to the inner sides of the bottom and top ends of the frame 1. The rotating rollers 2 are driven to rotate by a driving component, which can be any component such as a motor. The top rotating roller 2 is a warp feed roller, while the bottom rotating roller 2 is a winding roller. Multiple sliding plates 3 are evenly slidably connected radially outward from the inside of the rotating roller 2. A winding sheet 4 is fixed to the end of the sliding plate 3 away from the rotating roller 2.

[0031] According to the patent application CN205775150U, which discloses a net weaving machine with adjustable mesh size, we know that, based on the formula L=2πRnT, R is the radius of the roller, n is the rotational speed, and T is the cycle time. Adjusting the radius R causes a change in the mesh size L, thereby altering the mesh size. The method used in this application to change the mesh size involves winding the fishing net around the outside of the winding sheet 4, and adjusting the length of multiple winding sheets 4 outside the rotating roller 2 to adjust the mesh size.

[0032] A moving component is provided at the center of the interior of the rotating roller 2. The moving component includes a first moving column 5, a second moving column 6, and a moving boss 7.

[0033] The movable boss 7 is located between the first movable column 5 and the second movable column 6, and the diameter of the first movable column 5 is smaller than that of the second movable column 6. The end of the movable boss 7 with a smaller diameter is connected to the first movable column 5, and the end of the movable boss 7 with a larger diameter is connected to the second movable column 6. The sliding plate 3 is provided with a contact platform near the first movable column 5, the second movable column 6 and the movable boss 7.

[0034] The contact platform includes a sliding inclined surface 8, a sliding first plane 17, and a sliding second plane 18. The sliding inclined surface 8 is in contact with the movable boss 7, the sliding first plane 17 is in contact with the first movable column 5, and the sliding second plane 18 is in contact with the second movable column 6.

[0035] A drive mechanism is installed at the center of the rotating roller 2. The drive mechanism is used to drive the first moving column 5, the second moving column 6 and the moving boss 7 to move.

[0036] See attached document Figures 2-4 The drive mechanism includes a threaded rod 9 rotatably connected inside the rotating roller 2, and the threaded rod 9 is threadedly connected to the moving part. At least one limiting piece 10 is fixed on the outside of the moving part and between two adjacent sliding plates 3, and the limiting piece 10 is slidably connected to the inner wall of the rotating roller 2. A drive motor 11 is installed on one side of the frame 1, and the output end of the drive motor 11 passes through the frame 1 and the rotating roller 2 and is connected to the threaded rod 9.

[0037] When it is necessary to change the length of the winding sheet 4 outside the rotating roller 2, the drive motor 11 can be driven so that the output end of the drive motor 11 drives the threaded rod 9 to rotate and is connected to the moving part through the threaded rod 9. The moving part is slidably connected to the rotating roller 2 through the limiting plate 10, so that the moving part can slide left and right inside the rotating roller 2. When the moving part moves, it can drive the moving boss 7 to move. When the moving boss 7 moves toward the direction close to the sliding first plane 17, it can squeeze the sliding plate 3 toward the outside and drive the sliding plate 3 and the winding sheet 4 to move toward the outside, so that the radius of the multiple winding sheets 4 increases and the mesh of the fishing net is enlarged. Furthermore, a first magnet is provided on the outside of the moving part, and a second magnet is fixed at one end of the contact platform near the moving part. The first magnet and the second magnet attract each other so that the sliding plate 3 and the moving part can always be tightly attached. The first magnet and the second magnet can be replaced by a spring.

[0038] See attached document Figure 6 At least one locking block 14 is provided on the outer side of the threaded rod 9. A fixing ring 12 is fixed on the inner wall of the rotating roller 2 and located on the outer side of the locking block 14. The inner wall of the fixing ring 12 is uniformly provided with locking grooves 13. The locking block 14 is inserted into the locking groove 13.

[0039] When the threaded rod 9 rotates to a certain distance, the locking block 14 can be engaged in one of the slots 13, thereby preventing the threaded rod 9 from continuing to rotate. The locking block 14 can be made of flexible material. When the threaded rod 9 rotates, it can deform and slide out of the slot 13, and then be engaged in the next slot 13 when the threaded rod 9 stops rotating.

[0040] See attached document Figure 5 Both ends of the rotating roller 2 located at the bottom of the frame 1 are fixed with contraction springs 15. The end of the contraction spring 15 away from the rotating roller 2 is fixed with a clamping plate 16. With this arrangement, the end of the fishing net is clamped between the second moving column 6 and the winding plate 4. Then, the contraction spring 15 pulls the clamping plate 16 to clamp the fishing net, thereby ensuring that the fishing net can be stably wound on the rotating roller 2 at the bottom. Furthermore, a flexible pad is provided on the outside of the winding plate 4. With this arrangement, when the winding plate 4 winds the fishing net, the flexible pad can protect the fishing net and prevent the fishing net from being torn on the winding plate 4. The flexible pad can be made of rubber or other materials.

[0041] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. An automatic knotter net mesh size automatic control device, comprising a frame (1), characterized in that: The inner side of the bottom end and the top end of the rack (1) is rotationally connected with a rotating roller (2), the inside of the rotating roller (2) is uniformly and radially slidably connected with a plurality of sliding plates (3) to the outside, one end of the sliding plate (3) away from the rotating roller (2) is fixed with a winding piece (4); The center position of the inside of the rotating roller (2) is provided with a moving part, the moving part comprises a first moving column (5), a second moving column (6) and a moving boss (7); The moving boss (7) is arranged between the first moving column (5) and the second moving column (6), and the diameter of the first moving column (5) is smaller than that of the second moving column (6), one end of the moving boss (7) with small diameter is connected with the first moving column (5), and the other end of the moving boss (7) with large diameter is connected with the second moving column (6), and the position of the sliding plate (3) close to the first moving column (5), the second moving column (6) and the moving boss (7) is provided with a contact platform; The contact platform comprises a sliding inclined surface (8), a sliding first plane (17) and a sliding second plane (18), and the sliding inclined surface (8) is in contact with the moving boss (7), the sliding first plane (17) is in contact with the first moving column (5), and the sliding second plane (18) is in contact with the second moving column (6); The center position of the inside of the rotating roller (2) is provided with a driving mechanism, and the driving mechanism is used for driving the first moving column (5), the second moving column (6) and the moving boss (7) to move.

2. The knotter mesh size automatic control device according to claim 1, characterized in that: The driving mechanism comprises a threaded rod (9) rotationally connected in the inside of the rotating roller (2), and the threaded rod (9) is threadedly connected with the moving part, at least one limiting piece (10) is fixed on the outside of the moving part and between two adjacent sliding plates (3), and the limiting piece (10) is slidably connected with the inner wall of the rotating roller (2), a driving motor (11) is installed on one side of the rack (1), the output end of the driving motor (11) penetrates through the rack (1) and the rotating roller (2) and is connected with the threaded rod (9).

3. The knotter mesh size automatic control device according to claim 2, characterized in that: At least one clamping block (14) is arranged on the outside of the threaded rod (9), a fixed ring (12) is fixed on the inner wall of the rotating roller (2) and outside the clamping block (14), the inner wall of the fixed ring (12) is uniformly provided with a clamping groove (13), and the clamping block (14) is clamped into the clamping groove (13).

4. The knotter mesh size automatic control device according to claim 1, characterized in that: The outside of the rotating roller (2) at the bottom end of the rack (1) is fixed with a contraction spring (15), and one end of the contraction spring (15) away from the rotating roller (2) is fixed with a clamping plate (16).

5. The knotter mesh size automatic control device according to claim 1, characterized in that: The outside of the moving part is provided with a first magnet, one end of the contact platform close to the moving part is fixed with a second magnet, and the first magnet and the second magnet are mutually adsorbed.

6. The knotter mesh size automatic control device according to claim 1, wherein: The outside of the winding piece (4) is provided with a flexible pad.

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