An automatic crab trap hook device

Abstract

The present invention provides a crab cage automatic hook device, belonging to the technical field of fishing gear equipment. It solves the technical problems such as the existing crab cages not being able to automatically hook. This crab cage automatic hook device includes a mounting plate, a rope feeder for conveying the main rope, and a hook member for connecting the crab cage; a number of branch rope loops are arranged at intervals on the main rope; one end of the mounting plate is the rope inlet end, and the other end is the hook working position end. The rope feeder drives the main rope to move above the mounting plate from the rope inlet end towards the hook working position end; a mounting seat is fixedly arranged at the hook working position end of the mounting plate. The mounting seat is strip-shaped and perpendicular to the side surface of the mounting plate. A material bin capable of placing a number of hook members and capable of transferring the hook members towards the mounting seat is arranged on one side of the mounting plate; a first driving member is arranged on the mounting seat, and a second driving member facing the hook working position end of the mounting plate is arranged on the side surface of the mounting plate. The crab cage automatic hook device in the present invention is convenient to use, has a high degree of automation, high working efficiency, and is stable and reliable.

Description

Technical Field

[0001] The present invention belongs to the technical field of fishing gear and relates to a crab cage automatic hanging device. Background Art

[0002] Crabs are crustaceans of the order Decapoda and suborder Brachyura. There are many types of crabs. Most crabs are edible. Crab shells can be used to extract industrial raw material chitin and can also be used to extract glucosamine. Crab larvae or adults can be used as bait and feed. The main edible crabs include Portunus trituberculatus, Portunus pelagicus, Scylla serrata, Eriocheir sinensis, etc. Portunus trituberculatus is rich in meat, plump and nutritious. It is an important economic crab in the coastal areas of China and is also the main fishing target of crab cage fishing vessels in China.

[0003] The crab cage fishery in China is very large. Every year, a large number of Portunus trituberculatus are caught and sold. When crab cage fishing vessels are operating, crab cages need to be hung on the main rope and placed in the sea. The principle is to use the bait in the crab cage to lure crabs into the crab cage, and then the crab cage is retrieved for capture. The order of placing the crab cage is to first lower the buoy. The buoy is connected to the buoy rope. A sinker is tied to the main rope so that the crab cage can sink to the bottom of the sea. Since the crab cage and the main rope need to be frequently installed and disassembled, a supporting rope loop is usually tied to the main rope, and the crab cage is hung on the supporting rope loop through a hook to achieve connection.

[0004] In traditional operations, the hanging cage link in the installation of the crab cage hook and the unloading link during the lifting process mainly rely on manual methods to complete. Each time when installing and lifting the crab cage, about 3000 crab cages need to be continuously operated. The number of crab cages installed and unloaded per minute is about 26. Each crab cage weighs about 2 Kg. This process requires at least 4 professional workers to take turns to complete. Crab cage fishing vessels generally carry out the operation of lifting and lowering the cages about 4 times a day. Each person needs to hook and unhook about 12000 times. The labor intensity of workers is very high. In addition, the fishing season of crab cage vessels is mainly in summer. High temperature and high-intensity labor are extremely likely to cause personal safety accidents such as heatstroke and misoperations caused by fatigue of fishermen. Therefore, designing a crab cage automatic hanging device is of great importance and practical significance for reducing the labor intensity of workers and improving work efficiency.

[0005] The Chinese patent (Publication No.: CN105908402A; Publication Date: August 31, 2016) discloses a crab cage automatic grasping device. The crab cage includes an upper frame ring, a lower frame ring and vertical ribs. The vertical ribs are arranged at intervals along the circumference of the upper frame ring and connect the upper frame ring and the lower frame ring. The grasping device includes a grasping mechanism and an up-and-down driving mechanism. The up-and-down driving mechanism is connected to the grasping mechanism and can drive the grasping mechanism to move up and down. The grasping mechanism includes a base, a push plate, a horizontal driving unit and a plurality of jaw assemblies. The jaw assemblies are installed between the base and the push plate, and all the jaw assemblies are evenly arranged at intervals along the circumference of the base. One of the jaw assemblies is fixedly connected to the push plate, and the remaining jaw assemblies are slidably connected to the push plate. The horizontal driving unit drives the push plate to translate radially to drive all the jaw assemblies to expand radially outward to tighten the upper frame ring of the crab cage to achieve the grasping of the crab cage.

[0006] The crab cage automatic grasping device in the above patent document has a complex structure and is inconvenient to use. Summary of the Invention

[0007] In view of the above problems existing in the prior art, the present invention provides a crab cage automatic hanging hook device. The technical problem to be solved by the present invention is: how to provide a crab cage automatic hanging hook device with a simple structure and convenient operation.

[0008] The purpose of the present invention can be achieved by the following technical solutions:

[0009] A crab cage automatic hanging hook device includes a mounting plate, a rope feeder for conveying the main rope, and a hanging hook member for connecting the crab cage;

[0010] A number of branch rope loops are arranged at intervals on the main rope;

[0011] The hanging hook member includes a seat body and a fixed rod fixedly connected to the seat body. One end of the fixed rod is fixedly connected to one side of the seat body, and the other end of the fixed rod has an arc-shaped hook. An active rod is provided on the other side of the seat body. One end of the active rod is rotatably connected to the seat body through a bolt or a connecting pin. A torsion spring for resetting the active rod is provided on the bolt and the connecting pin. The other end of the active rod can swing and abuts against the inner side surface of the outer end of the arc-shaped hook at the initial position. A connecting hole for installing a connecting rope is also provided on the seat body;

[0012] It is characterized in that one end of the mounting plate is the rope inlet end, and the other end is the hanging hook working position end. The rope feeder drives the main rope to move above the mounting plate from the rope inlet end towards the hanging hook working position end. A rope passing bayonet for the branch rope loop on the main rope to pass through and a sensor for sensing the branch rope loop on the main rope are provided at the rope inlet end of the mounting plate;

[0013] A mounting seat is fixedly provided at the hook working end of the mounting plate. The mounting seat is strip-shaped and perpendicular to the side surface of the mounting plate. A material bin capable of placing a plurality of hook members and capable of transferring the hook members towards the mounting seat is provided on one side of the mounting plate;

[0014] A first driving member facing the hook working end of the mounting plate is provided on the mounting seat, and a second driving member facing the hook working end of the mounting plate is provided on the side surface of the mounting plate.

[0015] The principle is as follows: The crab cage is placed on a trolley, arranged in 5 columns, with 5 crab cages in each column, a total of 25 crab cages in a group. The trolley has a certain slope. When the crab cage in the first column is hooked to the supporting rope and taken away by the main rope, the crab cage in the second column slides to the position of the first column, and so on until all are placed into the sea. The upper end of the crab cage is connected to the hook member through a connecting rope, and an opening for the connecting rope to pass through is provided on the upper side or one side of the material bin. The main rope is connected to a rope feeding machine, and the main rope is driven to move forward by the rope feeding machine. The main rope moves along the length direction of the mounting plate above the mounting plate. Supporting rope rings are evenly spaced on the main rope. When the main rope moves, the supporting rope rings move from the rope inlet end of the mounting plate towards the hook working end direction. When passing through the rope passing bayonet, the information is timely sensed by the sensor. Based on the moving speed of the main rope and the distance from the rope inlet end to the hook working end of the mounting plate, the time when the sensed supporting rope ring reaches the hook working end can be calculated. Then the corresponding hook member is pushed out from the material bin, and the first driving member drives the hook member to reach the position. After that, the second driving member drives the movable rod of the hook member to swing, so that the movable rod disengages from the inner side surface of the outer end of the arc-shaped hook, thus forming a gap. The supporting rope ring continues to move, and thus can just be sleeved into the hook member. At this time, the first driving member and the second driving member reset, and the main rope continues to move, taking away the hook member to complete the automatic hooking action of the crab cage. The next supporting rope ring and the next hook member perform the hooking action again, and finally complete the hooking of all the crab cages.

[0016] In this application, the crab trap is usually cylindrical. The framework of the crab trap consists of 2 steel rings and several struts. Generally, the heads and tails of 6 struts are respectively welded to the upper and lower 2 steel rings, and an outer cover net is put on the outside. The outer cover net is made of a piece of mesh with a mesh size of 3 cm, a length of 100 meshes, and a width of 34 meshes into a cylindrical shape. A thin string is strung on the upper opening of the net cylinder to gather the net mouth, and the lower opening of the net cylinder should be sealed and tied firmly. Three funnel-shaped entrances are made on the side of the crab trap, which is the passage for crabs to enter the crab trap. The required function of this entrance is that only crabs outside can enter and cannot go out from the inside. The main rope is made of polypropylene material. Generally, there are 3 main ropes on a crab trap fishing boat, each with a length of 12 nautical miles. The diameter of the main rope is 15 mm, which is made of three strands of rope twisted to the left and wrapped with an aluminum strip in the middle. Generally, there are 3000 branch rope loops on one main rope to hang 3000 crab traps. 4 floats and 4 sinkers should also be tied to the crab trap rope. The spacing between the branch rope loops on the main rope is 8 m, the moving speed of the main rope is 1.6 m / s, and it takes 5 s from one branch rope loop to the next branch rope loop.

[0017] The crab trap automatic hanging device in this application can hang 12 crab traps per minute. The crab trap automatic hanging device in this application has a high degree of automation, a simple and compact structure, convenient operation, high working efficiency, greatly reduces the labor intensity of manpower, and saves manpower.

[0018] In the above-mentioned crab trap automatic hanging device, the mounting plate is a long rectangular plate body. A bracket bent upward is fixedly arranged on the side of the rope inlet end of the mounting plate near the top. The bracket and the side of the mounting plate form a rope passing bayonet opening upward; the sensor is a photoelectric sensor, and the sensor is fixedly arranged on the side of the mounting plate and faces the rope passing bayonet. The setting of the rope passing bayonet can ensure that the branch rope loops on the main rope move more accurately, stably and reliably, and play a guiding role in the movement of the branch rope loops; thus, the hanging connection with the hanging member can be realized accurately and reliably.

[0019] In the above-mentioned crab trap automatic hanging device, the mounting seat is a rectangular block. One end of the mounting seat is vertically fixedly connected to the side of the hanging position end of the mounting plate. There is a hanging position working plane on the side of the hanging position end of the mounting plate or on the top surface of the mounting seat close to the mounting plate. In this way, the material bin and the mounting plate are arranged staggeredly, and there is a vertical distance between the two. This vertical distance can accommodate a hanging member to pass through. After the hanging member is hung on the main rope, it comes out from this vertical distance to avoid interference with the material bin. After the hanging members in the material bin are discharged to reach the mounting seat, they are pushed a certain distance towards the mounting plate side by the first driving member, so that they can be directly opposite to the second driving member and the branch rope loops on the main rope, and subsequent accurate hanging can be achieved.

[0020] In the above-mentioned automatic crab cage hooking device, a groove is provided on the top surface of the mounting base. The first driving member is a first driving cylinder, which is installed in the groove. The first driving cylinder is fixedly connected to the mounting base and is arranged along the length direction of the mounting base. The output shaft of the first driving cylinder faces the working plane of the hooking station. The width dimension of the working plane of the hooking station is greater than the thickness dimension of the hooking member.

[0021] In this application, the width dimension of the working plane of the hooking station refers to the dimension of the working plane of the hooking station along the length direction of the mounting base, and the thickness dimension of the hooking member refers to the height dimension when the hooking member is horizontally placed on the bottom surface. Preferably, the width of the working plane of the hooking station is equal to twice the thickness dimension of the hooking member. In this way, when the hooking member comes out of the bin, it is located at one end of the working plane of the hooking station. Then, the first driving member pushes the hooking member by a displacement of the thickness dimension of one hooking member, so that it reaches the other end of the working plane of the hooking station, and is exactly opposite to the second driving member and the branch rope loop on the main rope to achieve precise hooking. The displacement of the first driving member pushing the hooking member is very short, and the hooking member will not fall over.

[0022] In the above-mentioned automatic crab cage hooking device, the bin includes a column and a bin box fixedly arranged on the column. The bottom surface of the bin box is inclined downward. The upper end of the bin box has a feeding port for putting the hooking member, and the lower end of the bin box has a discharging port for pushing out the hooking member on one side facing the mounting base. A third driving member is connected to the bin box, which can push the hooking member in the bin box to move from the discharging port to the outer end of the working plane of the hooking station.

[0023] In this application, the end of the working plane of the hooking station close to the mounting plate is defined as the inner end, and the end far from the mounting plate is defined as the outer end. The hooking members are placed upright and move one by one from the upper end to the lower end of the bin box under the action of their own gravity, and then move horizontally to the working plane of the hooking station under the action of the third driving member.

[0024] In the above-mentioned automatic crab cage hooking device, a vertical abutting surface is provided on the side surface of the mounting plate or on the mounting base. The abutting surface is located at the end of the working plane of the hooking station close to the mounting plate. The horizontal vertical distance between the lower end side surface of the bin box and the abutting surface is equal to or greater than the thickness dimension of one hooking member. This is convenient for their cooperation, so that the hooking member can not only reach the working plane of the hooking station smoothly, but also leave the working plane of the hooking station.

[0025] In the above-mentioned automatic hooking device for crab cages, the driving member 1 can push the hook member to move from the outer end of the hooking station working plane to the inner end of the hooking station working plane and abut against the abutting surface, the driving member 2 is a driving cylinder 2, the driving cylinder 2 is fixed on the side of the mounting plate along the length direction of the mounting plate, the driving cylinder 2 and the bin box are arranged on both sides of the mounting seat, one side of the movable rod of each hook member in the bin box faces the driving cylinder 2, and the output shaft of the driving cylinder 2 faces the inner end of the hooking station working plane. The function of the driving cylinder 2 is mainly to push the movable rod of the hook member to swing, so that the movable rod is separated from the inner side of the outer end of the arc-shaped hook, thereby forming a gap, which is convenient for the support rope ring to penetrate into the hook member.

[0026] In the above-mentioned automatic hooking device for crab cages, the driving member 3 is a driving cylinder 3, which is arranged along the length direction of the mounting plate, and the piston rod of the driving cylinder 3 is arranged toward the direction of the hooking station working plane. The driving cylinder 3 is used to push the hook member to feed horizontally and smoothly reach the hooking station working plane.

[0027] In the above-mentioned automatic hook device for crab cages, the two ends of the bolt or connecting pin in the hook member protrude from the two side surfaces of the seat body, and the abutting surface is also provided with a clearance groove. A guide block is provided on the side of the hook station operation plane away from the second driving member, and a guide surface inclined upward is provided on the side of the guide block facing the second driving member. The guide block can play a limiting role, and when the driving cylinder 2 pushes the movable rod of the hook member, it can ensure that the seat body does not move. The inclined guide surface on the guide block can play a guiding role when the main rope drives the hook member to leave, bringing convenience to the departure of the hook member.

[0028] In the above-mentioned automatic hooking device for crab cages, the automatic hooking device for crab cages also includes an air compressor, a pressure reducing valve and at least two electromagnetic reversing valves are also provided on the mounting plate, and the air compressor, the pressure reducing valve, the electromagnetic reversing valve and the driving cylinder 1, the driving cylinder 2 and the driving cylinder 3 are connected through an air pipe. The automatic hooking device for crab cages is usually installed on fishing boats, has a large installation space, and can accommodate necessary objects in the pneumatic transmission control system, such as an air compressor, an oil mist collector, a filter, a cooler, etc., and is driven by multiple cylinders, with low cost and simple structure.

[0029] When the branch rope loop passes by the sensor, the sensor sends a signal to the PLC controller to energize the electromagnet of the electromagnetic reversing valve, causing the driving cylinder three to operate, pushing the hook member out of the silo to the outer end of the hook working station operation plane. Then, the driving cylinder one operates to push the hook member towards the inner end of the hook working station operation plane. Finally, the driving cylinder two operates to open the notch of the hook member, and through the rope feeder, the branch rope loop on the main rope is automatically hung into the hook member. The main rope continues to move forward, pulling the hook member up from the hook working station operation plane where the hook member is placed and entering the water, completing the cage placing work. By using the PLC, the operation difficulty of the equipment can be effectively reduced, and automated production can be more easily achieved.

[0030] The crab cage automatic hook device in the present invention has a high degree of automation, a simple and compact structure, convenient operation, high working efficiency, greatly reducing the labor intensity and saving manpower. Brief Description of the Drawings

[0031] Figure 1 It is a three-dimensional structural schematic diagram of the crab cage automatic hook device.

[0032] Figure 2 It is a front view structural schematic diagram of the crab cage automatic hook device.

[0033] Figure 3 It is a top view structural schematic diagram of the crab cage automatic hook device.

[0034] Figure 4 It is a three-dimensional structural schematic diagram of the hook member.

[0035] Figure 5 It is a three-dimensional structural schematic of the silo Figure 1 .

[0036] Figure 6 It is a three-dimensional structural schematic of the silo Figure 2 .

[0037] In the figure, 1. mounting plate; 1a. rope inlet end; 1b. hook working station end; 2. main rope; 2a. branch rope loop; 3. hook member; 31. seat body; 31a. connection hole; 32. fixed rod; 32a. arc-shaped hook; 33. movable rod; 34. bolt; 4. sensor; 5. silo; 51. column; 52. silo box; 52a. feeding port; 52b. discharging port; 6. driving member one; 7. bracket; 71. rope passing bayonet; 8. mounting seat; 81. hook working station operation plane; 82. groove; 9. driving member two; 10. driving member three; 11. guiding block; 11a. guiding surface; 12. abutting surface; 13. electromagnetic reversing valve; 14. air pipe. Detailed Embodiment

[0038] The following are specific embodiments of the present invention, in conjunction with the accompanying drawings, to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0039] As Figures 1 to 3 shown, this crab cage automatic hooking device includes a mounting plate 1, a rope feeder for conveying the main rope 2, and a hooking member 3 for connecting the crab cage; a plurality of branch rope loops 2a are arranged at intervals on the main rope 2; one end of the mounting plate 1 is an incoming rope end 1a, and the other end is a hooking station end 1b. The rope feeder drives the main rope 2 to move above the mounting plate 1 from the incoming rope end 1a towards the hooking station end 1b. The incoming rope end 1a of the mounting plate 1 is provided with a rope passing bayonet 71 for the branch rope loops 2a on the main rope 2 to pass through and a sensor 4 for sensing the branch rope loops 2a on the main rope 2. A mounting seat 8 is fixedly provided at the hooking station end 1b of the mounting plate 1. The mounting seat 8 is in a long strip shape and perpendicular to the side surface of the mounting plate 1. A material bin 5 capable of placing a plurality of hooking members 3 and capable of transferring the hooking members 3 towards the mounting seat 8 is provided on one side of the mounting plate 1; a first driving member 6 facing the hooking station end 1b of the mounting plate 1 is provided on the mounting seat 8, and a second driving member 9 facing the hooking station end 1b of the mounting plate 1 is provided on the side surface of the mounting plate 1.

[0040] As Figure 4 shown, the hooking member 3 includes a seat body 31 and a fixing rod 32 fixedly connected to the seat body 31. One end of the fixing rod 32 is fixedly connected to one side of the seat body 31, and the other end of the fixing rod 32 has an arc-shaped hook 32a. A movable rod 33 is provided on the other side of the seat body 31. One end of the movable rod 33 is rotatably connected to the seat body 31 through a bolt 34 or a connecting pin. A torsion spring capable of resetting the movable rod 33 is provided on the bolt 34 and the connecting pin. The other end of the movable rod 33 can swing and abuts against the inner side surface of the outer end of the arc-shaped hook 32a in the initial position. A connecting hole 31a for installing a connecting rope is further provided on the seat body 31.

[0041] The principle is as follows: the crab cages are placed on a trolley, with 5 rows, 5 crab cages in each row, and a total of 25 crab cages in a group. The trolley has a slight slope. When the crab cages in the first row are hung on the support rope and taken away by the main rope 2, the crab cages in the second row slide to the position of the first row, and this is repeated until all are put into the sea. The upper end of the crab cage is connected to the hook member 3 by a connecting rope, and an opening is opened on the upper side or one side of the silo 5 for the common connecting rope to pass through. The main rope 2 is connected to the rope feeder, and the main rope 2 is driven forward by the rope feeder. The main rope 2 moves above the mounting plate 1 along the length direction of the mounting plate 1. The main rope 2 is evenly spaced with branch rope rings 2a. When the main rope 2 moves, the branch rope rings 2a move from the rope feed end 1a of the mounting plate 1 toward the hook station end 1b. When the main rope 2 passes through the rope bayonet 71, the sensor 4 senses the information in time. The sensed speed can be calculated based on the moving speed of the main rope 2 and the distance from the rope feed end 1a of the mounting plate 1 to the hook station end 1b. When the support rope ring 2a reaches the hooking station end 1b, the corresponding hook member 3 is pushed out from the silo 5, and the driving member 1 6 drives the hook member 3 to reach the position, and then the driving member 2 9 drives the movable rod 33 of the hook member 3 to swing, so that the movable rod 33 is separated from the inner side of the outer end of the arc-shaped hook 32a, thereby forming a gap, and the support rope ring 2a continues to move, so that it can just fit into the hook member 3. At this time, the driving member 1 6 and the driving member 2 9 are reset, and the main rope 2 continues to move, taking away the hook member 3, completing the automatic hooking action of the crab cage. The next support rope ring 2a and the next hook member 3 perform the hooking action again, and finally all the crab cages are hooked.

[0042] The corresponding crab cage in the present embodiment is cylindrical, and the skeleton of the crab cage is composed of 2 steel rings and several pillars. Generally, the head and tail of 6 pillars are welded to 2 steel rings above and below respectively, and an outer cover net is put on the outside. The outer cover net is made of a piece of mesh with a mesh size of 3cm, a length of 100 meshes and a width of 34 meshes. A thin rope is strung on the upper opening of the net cylinder to collect the net mouth, and the lower opening of the net cylinder should be sealed and tied tightly. The side of the crab cage is made into three funnel-shaped entrances, which are the passages for crabs to enter the crab cage. The function required by this entrance is to only allow crabs outside to enter inside and not go out from the inside. The main rope 2 is made of polypropylene material. The crab cage fishing boat generally has 3 main ropes 2, each of which is 12 nautical miles long. The diameter of the main rope 2 is 15mm, and it is made by wrapping an aluminum strip in the middle with a three-strand rope in a left-twisted manner. There are generally 3000 branch rope rings 2a on a main rope 2 to hang 3000 crab cages. Four floats and four sinkers are also tied to the crab cage rope. The spacing between the branch rope rings 2a on the main rope 2 is 8m, and the movement speed of the main rope 2 is 1.6m / s. It takes 5s to move from one branch rope ring 2a to the next branch rope ring 2a.

[0043] The crab cage automatic hooking device in this application can hook 12 crab cages per minute. The crab cage automatic hooking device in this application has a high degree of automation, a simple and compact structure, is easy to operate, has high work efficiency, greatly reduces the labor intensity, and saves manpower.

[0044] Further, as Figures 1 to 3 shown, the mounting plate 1 is a long rectangular plate body. A bracket 7 that bends upward is fixedly provided on the side of the rope inlet end 1a of the mounting plate 1 near the top. An upward-opening rope passing bayonet 71 is formed between the bracket 7 and the side of the mounting plate 1; the sensor 4 is a photoelectric sensor 4, and the sensor 4 is fixedly provided on the side of the mounting plate 1 and faces the rope passing bayonet 71; the setting of the rope passing bayonet 71 can ensure that the branch rope loop 2a on the main rope 2 moves more accurately, stably and reliably, and plays a guiding role in the movement of the branch rope loop 2a; thus, its connection with the hooking member 3 can be realized accurately and reliably; the mounting seat 8 is a rectangular block, and one end of the mounting seat 8 is vertically fixedly connected to the side of the hooking station end 1b of the mounting plate 1. There is a hooking station working plane 81 on the side of the hooking station end 1b of the mounting plate 1 or on the top surface of the mounting seat 8 close to the mounting plate 1; in this way, the material bin 5 and the mounting plate 1 are arranged staggeredly, and there is a vertical distance between the two, and this vertical distance can accommodate a hooking member 3 to pass through. After the hooking member 3 is hooked on the main rope 2, it comes out from this vertical distance to avoid interference with the material bin 5. After the hooking member 3 in the material bin 5 is discharged to reach the mounting seat 8, the driving member 1 6 pushes it towards the mounting plate 1 by a certain distance, so that it can be directly opposite to the driving member 2 9 and the branch rope loop 2a on the main rope 2, and subsequent accurate hooking can be achieved. There is a groove 82 on the top surface of the mounting seat 8. The driving member 1 6 is a driving cylinder 1. The driving cylinder 1 is installed in the groove 82, fixedly connected to the mounting seat 8 and arranged along the length direction of the mounting seat 8. The output shaft of the driving cylinder 1 faces the hooking station working plane 81; the width dimension of the hooking station working plane 81 is greater than the thickness dimension of the hooking member 3.

[0045] In this application, the width dimension of the hooking station working plane 81 refers to the dimension of the hooking station working plane 81 along the length direction of the mounting seat 8, and the thickness dimension of the hooking member 3 refers to the height dimension of the hooking member 3 when it is placed horizontally on the bottom surface. Preferably, the width of the hooking station working plane 81 is equal to twice the thickness dimension of the hooking member 3. In this way, when the hooking member 3 comes out of the material bin 5, it is located at one end of the hooking station working plane 81, and the driving member 1 6 then pushes the hooking member 3 by a displacement of the thickness dimension of a hooking member 3, so that it reaches the other end of the hooking station working plane 81, and accurate hooking is achieved after being directly opposite to the driving member 2 9 and the branch rope loop 2a on the main rope 2. The displacement of the driving member 1 6 pushing the hooking member 3 is very short, and the hooking member 3 will not fall over.

[0046] Combined with Figure 5 and Figure 6As shown in the figure, the silo 5 includes a column 51 and a bin box 52 fixedly arranged on the column 51. The bottom surface of the bin box 52 is inclined downward. The upper end of the bin box 52 has a feeding port 52a for putting the hook member 3 into it, and the lower end of the bin box 52 has a discharging port 52b for pushing out the hook member 3 towards the side of the mounting seat 8. A third driving member 10 is connected to the bin box 52, which can push the hook member 3 in the bin box 52 to move from the discharging port 52b to the outer end of the hook working plane 81.

[0047] In this application, it is defined that the end of the hook working plane 81 close to the mounting plate 1 is the inner end, and the end far from the mounting plate 1 is the outer end. The hook members 3 are placed upright, and under the action of their own gravity, they move one by one from the upper end to the lower end of the bin box 52, and then move horizontally to the hook working plane 81 under the action of the third driving member 10. There is a vertical abutting surface 12 on the side surface of the mounting plate 1 or on the mounting seat 8, and the abutting surface 12 is located at the end of the hook working plane 81 close to the mounting plate 1; the horizontal vertical distance between the lower end side surface of the bin box 52 and the abutting surface 12 is equal to or greater than the thickness dimension of one hook member 3. This facilitates the cooperation between the two. The hook member 3 can not only reach the hook working plane 81 smoothly, but also leave the hook working plane 81. The first driving member 6 can push the hook member 3 from the outer end of the hook working plane 81 to the inner end of the hook working plane 81 and abut against the abutting surface 12. The second driving member 9 is a second driving cylinder, and the second driving cylinder is fixedly arranged on the side surface of the mounting plate 1 along the length direction of the mounting plate 1. The second driving cylinder and the bin box 52 are arranged on both sides of the mounting seat 8. One side of the movable rod 33 of each hook member 3 in the bin box 52 faces the second driving cylinder, and the output shaft of the second driving cylinder faces the inner end of the hook working plane 81. The main function of the second driving cylinder is to push the movable rod 33 of the hook member 3 to swing, so that the movable rod 33 disengages from the inner side surface of the outer end of the arc-shaped hook 32a, thus forming a gap to facilitate the insertion of the support rope loop 2a into the hook member 3. The third driving member 10 is a third driving cylinder, and the third driving cylinder is arranged along the length direction of the mounting plate 1, and the piston rod of the third driving cylinder is arranged towards the direction of the hook working plane 81. The third driving cylinder is used to push the hook member 3 to feed horizontally and reach the hook working plane 81 smoothly. Both ends of the bolt 34 or the connecting pin in the hook member 3 protrude from both side surfaces of the seat body 31. There is also a relief groove 82 on the abutting surface 12, and a guide block 11 is arranged on the side of the hook working plane 81 far from the second driving member 9. An inclined upward guide surface 11a is arranged on the side surface of the guide block 11 facing the second driving member 9. The guide block 11 can play a limiting role. When the second driving cylinder pushes the movable rod 33 of the hook member 3, it can ensure that the seat body 31 does not move. The inclined guide surface 11a on the guide block 11 can play a guiding role when the main rope 2 drives the hook member 3 to leave, which brings convenience for the hook member 3 to leave.

[0048] As Figure 2As shown in the figure, the automatic crab cage hanging device in this embodiment further includes an air compressor. A pressure reducing valve and at least two electromagnetic directional control valves 13 are also provided on the mounting plate 1. The air compressor, the pressure reducing valve, the electromagnetic directional control valves 13, and the first driving cylinder, the second driving cylinder, and the third driving cylinder are connected through an air pipe 14. This automatic crab cage hanging device is usually installed on a fishing boat and has a relatively large installation space, which can accommodate the necessary components in the pneumatic transmission control system, such as an air compressor, an oil mist separator, a filter, a cooler, etc. It is driven by multiple cylinders, with low cost and simple structure. When the rope loop 2a passes through the sensor 4, the sensor 4 sends a signal to the PLC controller to control the electromagnet of the electromagnetic directional control valve 13 to be energized, causing the third driving cylinder to work, pushing the hanging member 3 out of the storage bin 5 to the outer end of the hanging station working plane 81. Then the first driving cylinder works, pushing the hanging member 3 towards the inner end of the hanging station working plane 81. Finally, the second driving cylinder works to open the notch of the hanging member 3, and the rope loop 2a on the main rope 2 is automatically hung into the hanging member 3 by the rope feeder. The main rope 2 continues to move forward, pulling the hanging member 3 up from the hanging station working plane 81 where the hanging member 3 is placed and entering the water to complete the cage releasing work. By using the PLC, the operation difficulty of the equipment can be effectively reduced, and automated production can be more easily achieved.

[0049] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An automatic crab cage hanging hook device, comprising a mounting plate (1), a rope feeder for conveying a main rope (2), and a hanging hook member (3) for connecting a crab cage; A plurality of branch rope loops (2a) are arranged at intervals on the main rope (2); The hanging hook member (3) includes a seat body (31) and a fixing rod (32) fixedly connected to the seat body (31). One end of the fixing rod (32) is fixedly connected to one side of the seat body (31), and the other end of the fixing rod (32) has an arc-shaped hook (32a). An active rod (33) is provided on the other side of the seat body (31). One end of the active rod (33) is rotatably connected to the seat body (31) by a bolt (34) or a connecting pin. A torsion spring capable of resetting the active rod (33) is provided on the bolt (34) and the connecting pin. The other end of the active rod (33) can swing and abuts against the inner side surface of the outer end of the arc-shaped hook (32a) in the initial position. A connecting hole (31a) for installing a connecting rope is further provided on the seat body (31); It is characterized in that One end of the mounting plate (1) is an incoming rope end (1a), and the other end is a hanging hook working position end (1b). The rope feeder drives the main rope (2) to move above the mounting plate (1) from the incoming rope end (1a) towards the hanging hook working position end (1b). An over-rope bayonet (71) for the branch rope loop (2a) on the main rope (2) to pass through and a sensor (4) for sensing the branch rope loop (2a) on the main rope (2) are provided at the incoming rope end (1a) of the mounting plate (1); A mounting seat (8) is fixedly provided at the hanging hook working position end (1b) of the mounting plate (1). The mounting seat (8) is strip-shaped and perpendicular to the side surface of the mounting plate (1). A material bin (5) capable of placing a plurality of hanging hook members (3) and capable of transferring the hanging hook members (3) towards the mounting seat (8) is provided on one side of the mounting plate (1); A first driving member (6) facing the hanging hook working position end (1b) of the mounting plate (1) is provided on the mounting seat (8), and a second driving member (9) facing the hanging hook working position end (1b) of the mounting plate (1) is provided on the side surface of the mounting plate (1); The mounting seat (8) is in the shape of a rectangular block. One end of the mounting seat (8) is vertically fixedly connected to the side surface of the hanging hook working position end (1b) of the mounting plate (1). A hanging hook working position operation plane (81) is provided on the side surface of the hanging hook working position end (1b) of the mounting plate (1) or on the top surface of the mounting seat (8) close to the mounting plate (1). The width of the hanging hook working position operation plane (81) is equal to twice the thickness dimension of the hanging hook member (3).

2. The automatic crab trap hook device according to claim 1, characterized in that, The mounting plate (1) is a long strip-shaped rectangular plate body. A bracket (7) bent upwards is fixedly provided on the side surface of the incoming rope end (1a) of the mounting plate (1) near the top. The bracket (7) and the side surface of the mounting plate (1) form an over-rope bayonet (71) with an upward opening; the sensor (4) is a photoelectric sensor (4), and the sensor (4) is fixedly provided on the side surface of the mounting plate (1) and faces the over-rope bayonet (71).

3. The automatic crab cage hook device according to claim 2, characterized in that, The top surface of the mounting base (8) has a groove (82). The first driving member (6) is a first driving cylinder, which is installed in the groove (82), fixedly connected to the mounting base (8) and arranged along the length direction of the mounting base (8). The output shaft of the first driving cylinder faces the hook working plane (81). The width dimension of the hook working plane (81) is greater than the thickness dimension of the hook member (3).

4. The automatic crab cage hooking device according to claim 3, wherein The magazine (5) includes a column (51) and a magazine box (52) fixedly arranged on the column (51). The bottom surface of the magazine box (52) is inclined downward. The upper end of the magazine box (52) has a feeding port (52a) for placing the hook member (3), and the lower end of the magazine box (52) has a discharging port (52b) for pushing out the hook member (3) on the side facing the mounting base (8). A third driving member (10) is connected to the magazine box (52) and can push the hook member (3) in the magazine box (52) to move from the discharging port (52b) to the outer end of the hook working plane (81).

5. The automatic crab cage hook device according to claim 4, characterized in that, A vertical abutting surface (12) is provided on the side surface of the mounting plate (1) or the mounting base (8). The abutting surface (12) is located at one end of the hook working plane (81) close to the mounting plate (1). The horizontal vertical distance between the lower end side surface of the magazine box (52) and the abutting surface (12) is equal to or greater than the thickness dimension of a hook member (3).

6. The automatic crab cage hook device according to claim 5, characterized in that, The first driving member (6) can push the hook member (3) to move from the outer end of the hook working plane (81) to the inner end of the hook working plane (81) and abut against the abutting surface (12). The second driving member (9) is a second driving cylinder, which is fixedly arranged on the side surface of the mounting plate (1) along the length direction of the mounting plate (1). The second driving cylinder and the magazine box (52) are arranged on both sides of the mounting base (8). One side of the movable rod (33) of each hook member (3) in the magazine box (52) faces the second driving cylinder, and the output shaft of the second driving cylinder faces the inner end of the hook working plane (81).

7. The automatic crab pot hook device according to claim 6, characterized in that, The third driving member (10) is a third driving cylinder, which is arranged along the length direction of the mounting plate (1), and the piston rod of the third driving cylinder is arranged in the direction facing the hook working plane (81).

8. The automatic crab cage hook device according to claim 7, wherein, Both ends of the bolt (34) or the connecting pin in the hook member (3) protrude from both side surfaces of the seat body (31). A relief groove (82) is also provided on the abutting surface (12). A guide block (11) is arranged on the side of the hook working plane (81) far from the second driving member (9), and an inclined upward guide surface (11a) is provided on the side surface of the guide block (11) facing the second driving member (9).

9. The automatic crab pot hook device according to claim 7, wherein, The crab trap automatic hooking device further includes an air compressor. A pressure reducing valve and at least two electromagnetic directional control valves (13) are further provided on the mounting plate (1). The air compressor, the pressure reducing valve, the electromagnetic directional control valves (13), and the first driving cylinder, the second driving cylinder, and the third driving cylinder are connected through an air pipe (14).

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