A crab automatic cage release device

Abstract

The present invention relates to an automatic crab cage detachment device, comprising a crab cage flipping motion module and a crab cage impact vibration module. The crab cage flipping motion module is used to flip the top and bottom surfaces of the crab cage so that the crab cage opening faces downward, and comprises a conveying unit, a flipping unit, a pushing unit and a flipping rack unit. The crab cage impact vibration module is used to receive the flipped crab cage transmitted by the pushing unit, and impact to separate the crab from the cage, and comprises a flap support unit, an impact unit, a connecting rod mechanism unit, a conveyor belt unit and an impact rack unit. The flipping and impacting motions of the crab cage are completed by the device, so that the separation of the crab cage and the crab is automated, and the safety and economy of fishery production are improved.

Description

Technical Field

[0001] The present invention relates to an automatic crab cage detaching device, belonging to the technical field of crab fishing. Background Art

[0002] Swimming crabs are meaty, plump and nutritious. They are an important economic crab species in my country's coastal areas and the main target of my country's crab cage fishing boats. When fishing with crab cages, the cage unloading process is first completed by manual or mechanical means; after unloading, the crab cages containing swimming crabs are separated from the main cable and transported on the conveyor belt. Then the workers open the tied mouth on the upper surface of the crab cage and take out the bait box.

[0003] In the subsequent operation, the workers turned the crab cage over to ensure that the opening of the crab cage was facing downward, and knocked and smashed the crab cage manually at the funnel to make the swimming crabs leave the crab cage and enter the funnel. The swimming crabs and crab cages then entered their respective conveyor belts for transmission. The crab cage fishing boats lift and place the cages about 4 times a day. Each time the crab cages are lifted, about 3,000 crab cages need to be unloaded. The workers need to complete tens of thousands of flipping, smashing and knocking operations every day, which has the problems of high labor intensity, great safety hazards and low automation level.

[0004] In order to reduce costs and improve the safety of fishery production, it is urgent to design a series of equipment for automated fishing of swimming crabs. The patent (Announcement No.: CN 110521683 A) and related patents disclose an automatic unhooking and recovery device for crab cages, which realizes the automated processing of cage unloading. However, there is no related report on the automatic separation device for crab cages and crabs used in fishing vessels, that is, the device for automatically unhooking crabs through automated crab cage flipping and impacting, which is refined by the present invention. Summary of the invention

[0005] The technical problem solved by the invention is to overcome the deficiencies of the prior art and provide a device for automatically releasing crabs from a crab cage by automatically turning over and impacting the crab cage.

[0006] The technical solution of the present invention is: a crab automatic cage detaching device, including a crab cage flipping motion module and a crab cage impact vibration module;

[0007] The crab cage flipping motion module is used to flip the top and bottom surfaces of the crab cage so that the crab cage opening faces downward; the crab cage impact vibration module is used to receive the flipped crab cage and impact it to separate the crab from the cage.

[0008] Preferably, the crab cage flipping motion module comprises a conveying unit, a flipping unit, a pushing unit and a flipping frame unit;

[0009] The turning frame unit is used to provide support for the conveying unit and the turning unit;

[0010] The conveying unit is used to provide conveying speed and power to convey the crab cage to the turning unit;

[0011] The pushing unit is installed on the flipping unit, and the flipping unit is used to flip the top and bottom surfaces of the crab cage so that the opening of the crab cage faces downward; the flipped crab cage is pushed to the crab cage impact vibration module by the pushing unit.

[0012] Preferably, the flip unit comprises a flip frame, a rotating shaft, and a rotating motor; the pushing unit comprises an upper telescopic cylinder, a lower telescopic cylinder, a front push plate, and a rear push plate;

[0013] The flip frame is composed of an inner and outer frame, both of which are provided with frame grooves, the front push plate and the rear push plate are installed between the inner and outer frames, and the lower telescopic cylinder and the upper telescopic cylinder are respectively installed on the inner and outer frames; wherein the front rods of the upper and lower telescopic cylinders are respectively fixedly connected with the front push plate, and the rear rods of the upper and lower telescopic cylinders are respectively fixedly connected with the rear push plate, and the front push plate and the rear push plate can move along the frame groove of the flip frame driven by the cylinder; the upper frame and the lower frame are fixedly connected with the rotating shaft, and the rotating motor drives the rotating shaft and the flip frame to realize rotational motion together; the flip frame drives the flipping of the crab cage placed between the inner and outer frames through its own rotation.

[0014] Preferably, the upper and lower telescopic cylinders are double-rod double-acting cylinders, and there are two non-interconnected airway holes inside the rotating shaft for providing two-way controlled compressed air for the double-rod double-acting cylinders.

[0015] Preferably, a guardrail is provided on the outer side of the overturning frame unit to prevent the crab cage from falling off during the overturning process.

[0016] Preferably, the conveying unit includes an intermediate conveyor belt and a two-row conveyor belt, the intermediate conveyor belt is used to provide support for the crab cage transmission, and together with the two-row conveyor belts, provides the transmission speed of the initial section; the two-row conveyor belts have the same linear speed as the intermediate conveyor belt, and share a conveying roller, which is used to continue to provide the conveying speed and power when the crab cage is transported to the flipping unit.

[0017] Preferably, the crab cage impact vibration module comprises a flap support unit, an impact unit, a connecting rod mechanism unit, a conveyor belt unit and an impact frame unit;

[0018] The impact rack unit is used to provide support for the impact unit and the conveyor belt unit. The flap support unit is connected to the impact rack unit and is placed below the impact unit. The flap support unit and the impact unit are connected by a connecting rod mechanism. The conveyor belt unit is a two-row conveyor belt, and the middle of the conveyor belt is a large funnel of the impact rack unit. The flap support unit clamps the flipped crab cage conveyed by the crab cage flipping motion module. The impact unit impacts the bottom surface of the crab cage once driven by the connecting rod mechanism, and the impact rack unit impacts the falling crab cage for the second time. During the impact, the crab falls into the funnel, and the crab cage is transported away by the conveyor belt unit.

[0019] Preferably, the impact rack unit is provided with a photoelectric sensor at the impact unit for monitoring and determining the position of the crab cage; the overturning rack unit is provided with a photoelectric sensor at the entrance and exit of the crab cage for monitoring and determining the position of the crab cage.

[0020] Preferably, the photoelectric sensor of the flip rack unit is a double-sided induction type, one side is a laser sensor transmitting end, and the other side is a laser sensor receiving end; three photoelectric sensors are arranged on both sides of the flip rack unit, and when the three photoelectric sensors have signals at the same time, the crab cage moves into place.

[0021] Preferably, it also includes a main control module and an air circuit control module, which are used to perform motion control of the crab cage flipping motion module and the crab cage impact vibration module according to signals from the photoelectric sensor and the cylinder position sensor.

[0022] Preferably, the flap support unit includes a left flap, a right flap, a left hinge, and a right hinge. The left flap is fixedly connected to the impact frame unit via the left hinge, and the right flap is fixedly connected to the impact frame unit via the right hinge.

[0023] Preferably, the left hinge and the right hinge are spring hinges, and the bearing capacity is sufficient to keep the open state when only bearing the weight of the crab cage.

[0024] Preferably, the impact unit comprises an impact cylinder and an impact rapping member. Driven by the impact cylinder, the impact rapping member moves downward to perform a first downward impact on the crab cage. The impact rapping member is a frame structure and is fixedly connected to the connecting rod mechanism unit.

[0025] Preferably, there are two sets of connecting rod mechanism units, which are respectively used to connect the impact-beating component with the left flap and the right flap; each set includes a connecting rod B and a connecting rod C, one end of the connecting rod C is fixedly connected to the impact-beating component, and the other end is hinged to the connecting rod B, and the linear motion is ensured by a linear bearing installed on the left flap or the right flap; the other end of the connecting rod B is hinged to the left flap or the right flap.

[0026] Preferably, the impact cylinder is a single-rod double-acting cylinder, and the movement speed during impact is 200-600mm / s.

[0027] The beneficial effects of the present invention compared with the prior art are as follows: in view of the problems of high labor intensity, great safety hazards and low automation level in the current fishing operations of crab cage fishing boats in fishery production, the present invention innovatively provides an automatic separation device for crab cages and crabs for fishing boats, realizes the automation of separation of crab cages and crabs, and improves the safety and economy of fishery production. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the automatic crab cage release device;

[0029] Figure 2 It is a schematic diagram of the three-dimensional structure of the crab cage flipping motion module;

[0030] Figure 3 It is a schematic diagram of the three-dimensional structure of the crab cage impact vibration module;

[0031] Figure 4 It is a relationship diagram of the impact cylinder movement of the crab cage impact vibration module;

[0032] Figure 5 This is a schematic diagram of a guardrail on the outer side of the flip rack unit of the device of the present invention. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the embodiments.

[0034] like Figure 1As shown, the automatic crab detaching device of the present invention includes a crab cage flipping motion module and a crab cage impact vibration module. The crab cage flipping motion module is used to flip the top and bottom surfaces of the crab cage so that the crab cage opening faces downward, and includes a conveying unit 1, a flipping unit 2, a pushing unit 3 and a flipping rack unit 4. The crab cage impact vibration module is used to receive the flipped crab cage transmitted by the pushing unit 3, and perform impact to separate the crab from the cage, and includes a flap support unit 5, an impact unit 6, a connecting rod mechanism unit 7, a conveyor belt unit 8 and an impact rack unit 9. The flap support unit of the crab cage impact vibration module is adjacent to the conveying unit of the crab cage flipping motion module, and is located at the same height or slightly lower, and is used to receive the flipped crab cage transmitted by the conveying unit. The conveyor belt unit of the crab cage impact vibration module has the same transmission speed as the conveying unit of the crab cage flipping motion module.

[0035] (I) Crab cage flipping motion module

[0036] The conveying unit includes a middle conveyor belt and a two-row conveyor belt. The middle conveyor belt is used to provide support for the crab cage transmission and provide the transmission speed of the initial section together with the two-row conveyor belt. The two-row conveyor belt has the same linear speed as the middle conveyor belt and shares a conveying roller for continuing to provide the conveying speed and power when the crab cage is transported to the turning unit.

[0037] The flip unit includes a flip frame, a rotating shaft, and a rotating motor. The flip frame is fixedly connected to the rotating shaft, and the rotating motor drives the rotating shaft and the flip frame to realize rotational motion. The flip frame realizes the flipping of the crab cage by its own rotation. The flip frame is a frame structure, which is welded with stainless steel after machining, and the surface in contact with the crab cage is smooth and has no welding points. A moving slideway for the telescopic cylinder and the push plate is reserved in the middle. The height of the inner frame of the flip frame (that is, the frame placed below when in use) is the same as or slightly lower than the height of the conveyor belt of the conveying unit, and is used for the conveyor belt to provide transmission force.

[0038] The pushing unit includes an upper telescopic cylinder, a lower telescopic cylinder, a front push plate and a rear push plate. The upper telescopic cylinder and the lower telescopic cylinder are both double-rod double-acting cylinders, wherein the front rods of the upper and lower telescopic cylinders are respectively fixedly connected to the front push plate, and the rear rods of the upper and lower telescopic cylinders are respectively fixedly connected to the rear push plate. The front push plate and the rear push plate can move along the frame groove of the flip frame driven by the cylinder. The upper telescopic cylinder and the lower telescopic cylinder are both double-rod double-acting cylinders, and there are two non-interconnected airway holes inside the rotating shaft, which are used to provide two-way controlled compressed air for the double-acting cylinder.

[0039] The flip rack unit is used to provide support for the conveying unit and the flip unit. The flip rack unit is provided with photoelectric sensors at the entrance and exit of the crab cage, respectively, for monitoring and determining the position of the crab cage. The photoelectric sensor here is a double-sided induction type, one side is a laser sensor transmitting end, and the other side is a laser sensor receiving end. Three photoelectric sensors are arranged on both sides of the flip rack unit, respectively. When the three photoelectric sensors have signals at the same time, the crab cage moves into place.

[0040] like Figure 5 As shown, there is a guardrail on the outside of the overturning rack unit to prevent the crab cage from falling off during the overturning process.

[0041] (II) Crab cage impact vibration module

[0042] The flap support unit includes a left flap, a right flap, a left hinge, and a right hinge. The left flap is fixedly connected to the impact rack unit through the left hinge, and the right flap is fixedly connected to the impact rack unit through the right hinge. Both the left hinge and the right hinge are spring hinges, and the bearing capacity is sufficient to keep the open state when only bearing the weight of the crab cage. The left flap and the right flap are made of high molecular polyethylene material to reduce friction when in contact with the crab cage.

[0043] The impact unit includes an impact cylinder and an impact slapping member. Driven by the impact cylinder, the impact slapping member moves downward to perform the first downward impact on the crab cage. The impact slapping member is a frame structure and is fixedly connected to the connecting rod mechanism unit. The impact cylinder is a single-rod double-acting cylinder, and the movement speed during impact is 200-600 mm / s.

[0044] The connecting rod mechanism unit includes a connecting rod B and a connecting rod C. One end of the connecting rod C is fixedly connected to the impact member, and the other end is hinged to the connecting rod B, and the linear motion is ensured by a linear bearing. One end of the connecting rod B is hinged to the connecting rod C, and the other end is hinged to the flap.

[0045] The conveyor belt unit is a two-row conveyor belt, and the middle of the conveyor belt is a large funnel of the impact rack unit. The impact rack unit is used to give the falling crab cage a second impact. During the impact process, the crabs fall into the funnel, and the crab cage is transported away by the conveyor belt unit.

[0046] The impact frame unit is also used to provide support for the impact unit and the connecting rod mechanism unit. The impact frame unit is provided with a photoelectric sensor at the impact unit for monitoring and judging the position of the crab cage.

[0047] The device of the present invention can control the motion of the crab cage flipping motion module and the crab cage impact vibration module according to the signals of the photoelectric sensor and the cylinder position sensor through the main control module and the air path control module.

[0048] like Figure 2 As shown, when the crab cage fishing boat is fishing, the unloading process of the crab cage is first completed by manual or mechanical means; the unloading process separates the crab cage containing swimming crabs from the main cable, and then the crab cage containing crabs is transmitted on the conveying unit 1, and the worker opens the tie on the upper surface of the crab cage and takes out the bait box. The conveying unit 1 includes an intermediate conveyor belt 102 and a two-row conveyor belt 101. The intermediate conveyor belt 102 is used to provide support for the transmission of the crab cage, and together with the two-row conveyor belt 102, provides the transmission speed of the initial section. The intermediate conveyor belt 102 of the two-row conveyor belt 101 has the same linear speed, and shares a conveying roller 103, which is used to continue to provide the conveying speed and power when the crab cage is conveyed to the flipping unit 2.

[0049] When the crab cage is transported to the flip unit 2, the push unit 3 is in a forward retracting push state, that is, the upper telescopic cylinder 301 and the lower telescopic cylinder (arranged symmetrically with the upper telescopic cylinder, not shown in the figure) are in a retracting state, and at the same time drive the front push plate 303 to the outermost edge and the rear push plate 304 to the flip center. The crab cage can move forward to the flip center of the flip unit 2 under the power transmission of the two-row conveyor belt 102, and contact the rear push plate 304. At this time, the photoelectric sensor arranged at the entrance of the crab cage by the flip frame unit 4 detects the arrival signal of the crab cage, controls the rotating motor 201 of the flip unit 2, drives the rotating shaft 202 and the flip frame 203 to flip, and the flip angle is 180 degrees, which is controlled by the control module. After the flip is completed, the control module drives the upper telescopic cylinder 301 and the lower telescopic cylinder 302 of the push module 3 to move to the extended state, and the flipped rear push plate 304 pushes the crab cage out to the flip support unit 5 of the crab cage impact vibration module. At the same time, the next crab cage to be flipped moves to the vicinity of the front push plate 303 of the pushing unit 3, that is, the rotation center, and waits for the next flip.

[0050] like Figure 3As shown, the flap support unit 5 receives the crab cage pushed by the push plate and remains stationary under the support of the left flap 501 and the right flap 502. The photoelectric sensor arranged on the impact frame unit 9 detects the signal that the crab cage has reached the position, and the impact cylinder 601 of the impact unit 6 drives the impact clapping component 602 to move downward, and performs the first downward impact on the crab cage. Among them, the impact clapping component 602 is a frame structure and is fixedly connected to the connecting rod mechanism unit 7. The connecting rod mechanism unit 7 includes a connecting rod B701 and a connecting rod C702. One end of the connecting rod C702 is fixedly connected to the impact clapping component 602, and the other end is hinged to the connecting rod B701, and the linear motion is ensured by a linear bearing 703. One end of the connecting rod B701 is hinged to the connecting rod C 702, and the other end is hinged to the flap 501 or 502.

[0051] like Figure 4 The figure shows the relationship between the impact cylinder movement of the crab cage impact vibration module. Figure 4 (a) is the impact cylinder in its original state. Figure 4 (b) The impact cylinder drives the impact racket component to move until it contacts the crab cage, and the flap is in a vertical downward position. Figure 4 (c) The impact cylinder drives the impact member to move to the full stroke. Therefore, during the impact operation, the distance L between the lower surface of the impact member and the upper surface of the crab cage is: The full working stroke of the impact cylinder is slightly less than Among them, a is the width of the flap, b is the length of the connecting rod B, and c is the distance between the hinge rotation center and the movement axis of the connecting rod C.

[0052] The conveyor belt unit 8 is a two-row conveyor belt 801, and in the middle of the conveyor belt is a large funnel 901 of the impact rack unit 9. The impact rack unit 9 is used to give the falling crab pot a second impact. During the impact process, the crab falls into the funnel 901, and the crab pot is transported away by the conveyor belt unit 8. Under the action of the first impact and the second impact, the crab pot and the crab are separated, and the separation success rate can reach more than 90%.

[0053] The above description is only the best specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

[0054] The contents not described in detail in the specification of the present invention belong to the common knowledge of the professionals in this field.

Claims

1. A crab automatic cage detaching device, characterized in that: It includes a crab cage flipping motion module and a crab cage impact vibration module; The crab cage flipping motion module is used to flip the top and bottom surfaces of the crab cage so that the opening of the crab cage faces downward; the crab cage impact vibration module is used to receive the flipped crab cage and impact it to separate the crab from the cage; The crab cage impact vibration module comprises a flap support unit, an impact unit, a connecting rod mechanism unit, a conveyor belt unit and an impact frame unit; The impact rack unit is used to provide support for the impact unit and the conveyor belt unit. The flap support unit is connected to the impact rack unit and is placed below the impact unit. The flap support unit and the impact unit are connected by a connecting rod mechanism. The conveyor belt unit is a two-row conveyor belt, and the middle of the conveyor belt is a large funnel of the impact rack unit. The flap support unit clamps the flipped crab cage conveyed by the crab cage flipping motion module. The impact unit impacts the bottom surface of the crab cage once under the drive of the connecting rod mechanism. The impact rack unit impacts the falling crab cage for the second time. During the impact, the crab falls into the funnel, and the crab cage is transported away by the conveyor belt unit. The impact unit includes an impact cylinder and an impact clapping component. Driven by the impact cylinder, the impact clapping component moves downward to perform the first downward impact on the crab cage; the impact clapping component is a frame structure and is fixedly connected to the connecting rod mechanism unit; the impact frame unit is also used to provide support for the impact unit and the connecting rod mechanism unit.

2. The device according to claim 1, characterized in that: The crab cage flipping motion module comprises a conveying unit, a flipping unit, a pushing unit and a flipping frame unit; The turning frame unit is used to provide support for the conveying unit and the turning unit; The conveying unit is used to provide conveying speed and power to convey the crab cage to the turning unit; The pushing unit is installed on the flipping unit, and the flipping unit is used to flip the top and bottom surfaces of the crab cage so that the opening of the crab cage faces downward; the flipped crab cage is pushed to the crab cage impact vibration module by the pushing unit.

3. The device according to claim 2, characterized in that: The flip unit comprises a flip frame, a rotating shaft, and a rotating motor; the pushing unit comprises an upper telescopic cylinder, a lower telescopic cylinder, a front push plate, and a rear push plate; The flip frame is composed of an inner and outer frame, both of which are provided with frame grooves, the front push plate and the rear push plate are installed between the inner and outer frames, and the lower telescopic cylinder and the upper telescopic cylinder are respectively installed on the inner and outer frames; wherein the front rods of the upper and lower telescopic cylinders are respectively fixedly connected with the front push plate, and the rear rods of the upper and lower telescopic cylinders are respectively fixedly connected with the rear push plate, and the front push plate and the rear push plate can move along the frame groove of the flip frame driven by the cylinder; the upper frame and the lower frame are fixedly connected with the rotating shaft, and the rotating motor drives the rotating shaft and the flip frame to realize rotational motion together; the flip frame drives the flipping of the crab cage placed between the inner and outer frames through its own rotation.

4. The device according to claim 3, characterized in that: The upper and lower telescopic cylinders are both double-rod double-acting cylinders. Two non-interconnected airway holes are arranged inside the rotating shaft to provide two-way controlled compressed air for the double-rod double-acting cylinders.

5. The device according to claim 2, characterized in that: A guardrail is provided on the outer side of the overturning frame unit to prevent the crab cage from falling off during the overturning process.

6. The device according to claim 2, characterized in that: The conveying unit includes an intermediate conveyor belt and a two-row conveyor belt. The intermediate conveyor belt is used to provide support for the crab cage transmission and provide the transmission speed of the initial section together with the two-row conveyor belt. The two-row conveyor belt has the same linear speed as the intermediate conveyor belt and shares a conveying roller for continuing to provide the conveying speed and power when the crab cage is transported to the turning unit.

7. The device according to claim 1, characterized in that: The impact rack unit is provided with a photoelectric sensor at the impact unit for monitoring and judging the position of the crab cage; the overturning rack unit is provided with a photoelectric sensor at the entrance and exit of the crab cage for monitoring and judging the position of the crab cage.

8. The device according to claim 7, characterized in that: The photoelectric sensor of the flip rack unit is a double-sided induction type, one side is a laser sensor transmitting end, and the other side is a laser sensor receiving end; three photoelectric sensors are arranged on both sides of the flip rack unit, and when the three photoelectric sensors have signals at the same time, the crab cage moves into place.

9. The device according to claim 8, characterized in that: It also includes a main control module and an air circuit control module, which are used to control the movement of the crab cage flipping movement module and the crab cage impact vibration module according to the signals of the photoelectric sensor and the cylinder position sensor.

10. The device according to claim 1, characterized in that: The flap support unit includes a left flap, a right flap, a left hinge, and a right hinge. The left flap is fixedly connected to the impact frame unit via the left hinge, and the right flap is fixedly connected to the impact frame unit via the right hinge.

11. The device according to claim 10, characterized in that: The left hinge and the right hinge are both spring hinges, and the bearing capacity is sufficient to keep the open state when only bearing the weight of the crab cage.

12. The device according to claim 1, characterized in that: There are two sets of connecting rod mechanism units, which are used to connect the impact-beating component with the left flap and the right flap respectively; each set includes a connecting rod B and a connecting rod C, one end of the connecting rod C is fixedly connected to the impact-beating component, and the other end is hinged to the connecting rod B, and the linear motion is ensured by a linear bearing installed on the left flap or the right flap; the other end of the connecting rod B is hinged to the left flap or the right flap.

13. The device according to claim 1, characterized in that: The impact cylinder is a single-rod double-acting cylinder, and the movement speed during impact is 200-600mm / s.

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