Aquatic product weight grading and conveying device and method

Abstract

The present invention discloses a weight-grading and conveying device and method for aquatic products, and relates to the technical field of aquatic product grading. The technical scheme thereof includes at least two matching and connected single-stage grading conveying frames and a grading unloading plate for connecting the two single-stage grading conveying frames; the upper end of the single-stage grading conveying frame is open for aquatic products to enter the single-stage grading conveying frame, and the bottom of the single-stage grading conveying frame is provided with a lifting grading plate for supporting aquatic products and lowering the height as the quality of the aquatic products increases, and the upper side of the lifting grading plate and the front bottom of the single-stage grading conveying frame form an adjustable unloading opening for aquatic products of corresponding shapes and sizes to pass through, and the lifting grading plate is connected to an extrusion and pushing unit, and the extrusion and pushing unit is used to move toward the front side of the single-stage grading conveying frame and squeeze the aquatic products when the lifting grading plate descends. The present invention has a simple structure and significantly improves the efficiency of grading and conveying.

Description

Technical Field

[0001] The present invention relates to the technical field of aquatic product grading, and more specifically to a device and method for conveying aquatic product weight grading. Background Art

[0002] After being caught, aquatic products need to be effectively classified according to their specifications to meet the needs of different groups of people. In the past, the classification of aquatic products has long been mainly done manually, which is labor-intensive, inefficient, and difficult to produce high-quality products. The corresponding automated grading technology and equipment are basically blank in the market.

[0003] In the prior art, developed countries usually use image processing when classifying aquatic products according to their specifications, and use the advantages of fast speed and high precision of image processing to achieve the purpose of efficient classification.

[0004] However, image processing technology needs to process a large amount of data, and has the problem of high requirements for detection and control equipment and high cost. It is not suitable for classifying the specifications of small batches of aquatic products and needs to be improved. Summary of the invention

[0005] In view of the shortcomings of the prior art, the first object of the present invention is to provide a weight-grading and conveying device for aquatic products, which has a simple structure and can significantly improve the grading and conveying efficiency.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A weight-grading and conveying device for aquatic products, characterized in that it comprises at least two matching and connected single-stage grading conveying frames and a grading unloading plate for connecting the two single-stage grading conveying frames; the upper ends of the single-stage grading conveying frames are open to allow aquatic products to enter the single-stage grading conveying frames, the bottoms of the single-stage grading conveying frames are provided with a lifting and lowering grading plate for supporting aquatic products and lowering its height as the quality of the aquatic products increases, the upper side of the lifting and lowering grading plate and the front bottom of the single-stage grading conveying frames are formed with an adjustable unloading opening for aquatic products of corresponding shapes and sizes to pass through, and the lifting and lowering grading plate is connected to an extrusion and pushing unit, which is used to move toward the front side of the single-stage grading conveying frames and squeeze the aquatic products when the lifting and lowering grading plate descends.

[0008] By adopting the above technical scheme, when the aquatic products are graded and conveyed according to their weight, the aquatic products are classified into different specifications under the graded conveyance of at least two matched and connected single-stage graded conveying frames; wherein, when the aquatic products enter the first single-stage graded conveying frame, their own weight will exert a downward force on the lifting and grading plate to drive the lifting and grading plate to descend, and if the weight of the aquatic products is greater than the set weight, the squeezing and pushing unit will be driven at the same time to push the aquatic products through the adjustment unloading opening formed between the lifting and grading plate and the lower end of the front side of the single-stage graded conveying frame, and then fall into the connected single-stage graded conveying frame for further graded conveying; if the weight of the aquatic products is less than the set weight, the aquatic products will be pushed by the squeezing and pushing unit while the aquatic products are retained on the lifting and grading plate, and then the aquatic products in the single-stage graded conveying frame can be taken out to complete the graded conveying of the corresponding aquatic products, so that the aquatic product weight graded conveying equipment has a simple structure and significantly improves the graded conveying efficiency.

[0009] The present invention is further configured as follows: the bottom of the single-stage grading conveying frame is fixedly connected to a fixed frame, the top of the fixed frame is provided with at least two extrusion springs symmetrically distributed left and right or front and back, and the top of the extrusion spring is fixedly connected to the bottom of the lifting grading plate.

[0010] By adopting the above technical solution, the extrusion spring plays the role of effectively connecting the fixed frame and the lifting and grading plate, so that the lifting and grading plate has the effect of moving downward when subjected to force, thereby making the aquatic product weight grading and conveying equipment have a simple structure and significantly improving the grading and conveying efficiency.

[0011] The present invention is further configured as follows: two limit bottom plates symmetrically distributed front to back or left to right are arranged at the bottom of the lifting and grading plate, two limit connecting plates respectively matched with the corresponding limit bottom plates are arranged at the top of the fixed frame, and a limit slot is arranged on the upper side of the limit connecting plate for the limit bottom plate to be inserted and reciprocate in the vertical direction.

[0012] By adopting the above technical solution, when the lifting and grading plate performs lifting movement in the vertical direction, the limiting bottom plate moves in the limiting slot of the limiting connecting plate, so that the fixed frame effectively improves the stability of the vertical lifting movement of the lifting and grading plate; and when the limiting bottom plate is symmetrically distributed front and back, the extrusion spring is symmetrically distributed left and right; when the limiting base is symmetrically distributed left and right, the extrusion spring is symmetrically distributed front and back.

[0013] The present invention is further configured as follows: the extrusion pushing unit includes a lifting sleeve column sleeved on the fixed frame and an extrusion transfer plate inserted in the single-stage grading transfer frame, and a connecting driving arm is arranged between the lifting sleeve column and the lifting grading plate to drive the lifting sleeve column to make a corresponding ascending or descending movement when the lifting grading plate makes a descending or ascending movement; the lifting sleeve column is connected to a driving arm for connecting with the extrusion transfer plate, and when the lifting sleeve column makes an ascending or descending movement, the driving arm drives the extrusion transfer plate to make a corresponding movement toward the front or rear side of the single-stage grading transfer frame.

[0014] By adopting the above technical scheme, when the lifting and grading plate moves downward in the vertical direction, the lifting sleeve column is driven to move upward in the vertical direction by connecting the driving arm, so that the lifting sleeve column drives the driving arm to move while the extrusion transfer plate moves toward the front side of the single-stage grading transfer frame; correspondingly, when the lifting and grading plate moves upward in the vertical direction, the lifting sleeve column is driven to move downward in the vertical direction by connecting the driving arm, so that the lifting sleeve column drives the driving arm to move while the extrusion transfer plate moves toward the rear side of the single-stage grading transfer frame, so that when the aquatic product weight grading and conveying equipment performs weight grading and conveying of aquatic products, the weight of the aquatic products is used to simultaneously drive the lifting and grading plate and the extrusion transfer plate to move, thereby achieving the purpose of significantly improving the grading and conveying efficiency of aquatic products.

[0015] The present invention is further configured as follows: a connecting transverse plate is provided at the top of the fixed frame body, and the extrusion spring is fixed on the left and right sides of the connecting transverse plate; a driving hinge plate is provided on the upper sides of both ends of the connecting transverse plate, and the upper ends of the two driving hinge plates are provided with at least one driving hinge part that is symmetrical to each other; a plurality of grading plate hinge parts that are respectively matched with the corresponding driving hinge parts are provided on the lower side of the lifting and lowering grading plate; the connecting driving arm is provided with a plurality of and respectively matches with the corresponding grading plate hinge parts, and is composed of a connecting upper arm and a connecting lower arm; the upper end of the connecting upper arm is connected to the corresponding grading plate hinge part for rotation up and down, the connection between the connecting upper arm and the connecting lower arm is connected to the corresponding driving hinge part for rotation up and down, and the lower end of the connecting lower arm is connected to the lifting sleeve column for rotation up and down; wherein the vertical distances from the lifting sleeve column, the driving hinge part and the grading plate hinge part to the fixed frame body gradually increase.

[0016] By adopting the above technical scheme, the connecting cross plate plays the role of connecting the extrusion spring, and after the driving hinge part on the driving hinge plate is rotatedly connected with the middle part of the connecting driving arm, that is, the connecting upper arm and the connecting lower arm, when the connecting upper arm connected to the lifting and grading plate at the upper end moves downward with the lifting and grading plate and rotates downward relative to the driving hinge part, the connecting lower arm will move upward with the lifting and grading plate and rotate upward relative to the driving hinge part, thereby achieving the effect of driving the lifting sleeve to move vertically upward, so that the weight grading and conveying equipment of aquatic products has a simple structure and significantly improves the grading and conveying efficiency.

[0017] The present invention is further configured as follows: a lifting plate is provided at the upper end of the lifting sleeve column, and the lower end of the connecting lower arm is connected to the lifting plate for vertical rotation.

[0018] By adopting the above technical solution, the lifting plate plays a role of effectively connecting with the connecting driving arm, so as to improve the structural coordination of the aquatic product weight grading and conveying equipment, thereby achieving the effect of stable grading and conveying.

[0019] The present invention is further configured as follows: one end of the driving arm is provided with a connecting sleeve portion which is sleeved on the lifting sleeve column, the driving arm is arc-shaped and the other end is connected to an extrusion conveying arm for vertical rotation, one end of the extrusion conveying arm is connected to the extrusion conveying plate to drive the extrusion conveying plate to move toward the front or rear side of the single-stage grading conveying frame; the other end of the extrusion conveying arm is provided with a hinged end arm, the middle part of the hinged end arm is rotatably connected to the driving arm, and a hinged end portion is provided at the end of the hinged end arm away from the extrusion conveying plate, and a fixed hinge portion which is rotatably connected to the hinged end portion up and down is provided at the bottom of the fixed frame; a rotating lifting connection vertical groove is provided on the rear side of the extrusion conveying plate, and a corresponding end of the extrusion conveying arm is inserted into the rotating lifting connection vertical groove, and performs corresponding rotational movement and vertical lifting movement along the length direction of the rotating lifting connection vertical groove at the same time.

[0020] By adopting the above technical solution, when the lifting sleeve column makes an upward movement in the vertical direction, it will drive the connecting sleeve part sleeved on the lifting sleeve column to move upward, and then the arc-shaped driving arm connected to the connecting sleeve part will pull the extrusion conveying arm upward, so that the extrusion conveying arm makes an upward rotation movement with the axis of the hinged end part rotatably connected to the fixed hinge part as the axis; at this time, the extrusion conveying arm will push the extrusion conveying plate from the back to the front, so that the extrusion conveying plate moves toward the front side in the single-stage grading conveying frame, and achieves the purpose of pushing the aquatic products; at the same time, during the rotation process of the extrusion conveying arm, the corresponding end of the extrusion conveying arm moves from the upper end to the lower end of the lifting connection vertical groove, and makes a rotation movement relative to the extrusion conveying plate.

[0021] The present invention is further configured as follows: the grading unloading plate is provided with an inclined unloading bottom plate for guiding the movement of aquatic products; a front side baffle is provided on the front side of the single-stage grading conveying frame, and the regulating unloading opening is formed between the bottom of the front side baffle and the upper side of the lifting grading plate; a rear side opening matching the extrusion and pushing unit is provided on the rear side of the single-stage grading conveying frame; and a side grading unloading plate that is pulled upward to open is provided on one side of the single-stage grading conveying frame, and the lifting grading plate is provided with a conveyor belt to convey the aquatic products to one side of the side grading unloading plate.

[0022] By adopting the above technical scheme, the inclined discharge bottom plate plays a role in effectively guiding the aquatic products to move along the inclined discharge bottom plate through their own gravity; the front side baffle wall plays a role in effectively limiting the aquatic products from passing through the adjusted discharge opening; at the same time, when the weight of the aquatic products does not reach the set value, the aquatic products are driven by the conveyor belt to move to one side of the side grading unloading plate, so that the grading and conveying of the aquatic products is completed after the side grading unloading plate is pulled upward and opened, so that the aquatic product weight grading and conveying equipment has a simple structure and significantly improves the grading and conveying efficiency.

[0023] The second object of the present invention is to provide a method for conveying aquatic products by weight grading, using the aquatic products by weight grading conveying equipment as described above.

[0024] By adopting the above technical solution, the difficulty of weight-grading and conveying aquatic products is significantly reduced, and the aquatic products obtained by the method have the same specifications.

[0025] The present invention is further configured to include the following steps:

[0026] Step 1: introducing the aquatic products into the single-stage grading conveying frame from the upper end opening of the single-stage grading conveying frame in sequence;

[0027] Step 2: When the aquatic product applies its own weight to the lifting and grading plate, the lifting and grading plate descends and drives the extrusion conveying plate to push the aquatic product toward the front side of the single-stage grading conveying frame. At this time, if the aquatic product's own weight exceeds the set weight, proceed to step 4, otherwise proceed to step 3;

[0028] Step 3: The side grading unloading plate is pulled upward and opened, and the conveyor belt is started to convey the aquatic products to one side of the side grading unloading plate in an orderly manner to complete the grading conveyance;

[0029] Step 4: The aquatic product is pushed by the extrusion conveyor plate through the adjusted discharge opening and is transferred out from the corresponding single-stage grading conveyor frame, and then the step 1 is continued.

[0030] By adopting the above technical solution, after the aquatic products are effectively graded and conveyed through at least two single-stage graded conveying racks, the graded conveying efficiency of the aquatic products is significantly improved while maintaining the structural integrity of the aquatic products.

[0031] In summary, the present invention has the following beneficial effects: when the aquatic product is placed in the first-order single-stage grading and conveying frame, the aquatic product will be pressed down by its own gravity to drive the compression deformation of the extrusion spring, so that the lifting and grading plate will descend with the compression deformation of the extrusion spring. At this time, the height of the adjustable unloading opening between the lifting and grading plate and the front side baffle wall will be increased and the extrusion conveying plate will move toward the front side of the single-stage grading and conveying frame, so that the aquatic products exceeding the set weight will enter the second-order single-stage grading and conveying frame through the adjustable unloading opening under the drive of the extrusion conveying plate for subsequent grading and conveying operations; correspondingly, the aquatic products that do not exceed the set weight will be retained on the lifting and grading plate. At this time, the retained aquatic products can be conveyed out by driving the movement of the conveyor belt and pulling up to open the side grading unloading plate, completing the grading and conveying of the corresponding aquatic products, so as to carry out subsequent grading and conveying operations of the aquatic products, so that the aquatic product weight grading and conveying equipment has a simple structure and significantly improves the grading and conveying efficiency, and the aquatic product weight grading and conveying method significantly improves the grading and conveying efficiency of aquatic products. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of this embodiment;

[0033] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure of part A;

[0034] Figure 3 It is a schematic diagram of the partial explosion structure of this embodiment;

[0035] Figure 4 It is a schematic diagram of the local structure of this embodiment.

[0036] Explanation of the reference numerals: 1. Single-stage grading conveying frame; 11. Grading unloading plate; 111. Inclined unloading bottom plate; 12. Side grading unloading plate; 13. Front baffle wall; 14. Adjustable unloading opening; 15. Rear opening; 2. Fixed frame; 21. Fixed hinged part; 22. Connecting horizontal plate; 23. Limiting connecting plate; 231. Limiting slot; 24. Driving hinged plate; 241. Driving hinged part; 25. Extrusion spring; 3. Driving arm; 31. Connecting sleeve; 4. Extrusion conveying arm; 41. Articulated end arm; 411. Articulated end; 5. Extrusion conveying plate; 51. Rotating lifting connecting vertical slot; 6. Lifting grading plate; 61. Grading plate hinged part; 62. Limiting bottom plate; 7. Lifting sleeve column; 8. Lifting plate; 9. Connecting driving arm; 91. Connecting upper arm; 92. Connecting lower arm. DETAILED DESCRIPTION

[0037] In order to make the technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0038] like Figure 1 As shown, a weight-grading conveying device for aquatic products comprises at least two matched and connected single-stage grading conveying racks 1 and a grading unloading plate 11 for connecting the two single-stage grading conveying racks 1. The single-stage grading conveying racks 1 may be two, three, four or even more, and the single-stage grading conveying rack 1 located in the previous sequence is located at the upper end of the rear side of the single-stage grading conveying rack 1 in the corresponding sequence, so that the aquatic products passing through the single-stage grading conveying rack 1 in the previous sequence can effectively enter the single-stage grading conveying rack 1 in the corresponding sequence.

[0039] like Figure 1 , Figure 2 , Figure 3As shown, the upper end of the single-stage grading conveying frame 1 is open to allow aquatic products to enter the single-stage grading conveying frame 1. A lifting and grading plate 6 is provided at the bottom of the single-stage grading conveying frame 1 for supporting aquatic products and whose height decreases as the mass of the aquatic products increases, so that the aquatic products entering the single-stage grading conveying frame 1 apply their own gravity to the lifting and grading plate 6, thereby driving the lifting and grading plate 6 to move up and down. It should be mentioned that an adjustable unloading opening 14 for aquatic products of corresponding shapes and sizes to pass through is formed on the upper side of the lifting and grading plate 6 and the bottom of the front side of the single-stage grading conveying frame 1, and the lifting and grading plate 6 is connected to an extrusion and pushing unit. The extrusion and pushing unit is used to move toward the front side of the single-stage grading conveying frame 1 and squeeze the aquatic products when the lifting and grading plate 6 descends. Therefore, when the aquatic products are graded and conveyed according to their weight, the aquatic products are classified into different specifications under the graded conveyance of at least two matched and connected single-stage graded conveying frames 1; wherein, when the aquatic products enter the first single-stage graded conveying frame 1, their own weight will exert a downward force on the lifting and grading plate 6 to drive the lifting and grading plate 6 to descend, and if the weight of the aquatic products themselves is greater than the set weight, the extrusion and pushing unit will be driven at the same time to push the aquatic products through the adjustment unloading opening 14 formed between the lifting and grading plate 6 and the lower end of the front side of the single-stage graded conveying frame 1, and then fall into the connected single-stage graded conveying frame 1 for further graded conveying; if the weight of the aquatic products themselves is less than the set weight, the aquatic products will be pushed by the extrusion and pushing unit while the aquatic products are pushed, and then the aquatic products in the single-stage graded conveying frame 1 can be taken out to complete the graded conveying of the corresponding aquatic products, so that the aquatic product weight graded conveying equipment has a simple structure and significantly improves the graded conveying efficiency.

[0040] Among them, an inclined material discharge bottom plate 111 for guiding the movement of aquatic products is arranged on the grading discharge plate 11. A front side baffle 13 is arranged on the front side of the single-stage grading conveying frame 1, and an adjustment discharge opening 14 is formed between the bottom of the front side baffle 13 and the upper side of the lifting grading plate 6. At the same time, a rear side opening 15 matching the extrusion and pushing unit is arranged on the rear side of the single-stage grading conveying frame 1, and a side grading discharge plate 12 that is pulled upward and opened is arranged on one side of the single-stage grading conveying frame 1, and a conveyor belt is arranged on the lifting grading plate 6 to convey the aquatic products to one side of the side grading discharge plate 12. Therefore, the inclined discharge bottom plate 111 plays a role in effectively guiding the aquatic products to move along the inclined discharge bottom plate 111 by their own gravity; the front side baffle wall 13 plays a role in effectively limiting the aquatic products from passing through the adjustable discharge opening 14; at the same time, when the weight of the aquatic products does not reach the set value, the aquatic products are driven by the conveyor belt to move to one side of the side grading discharge plate 12, so that the grading and conveying of the aquatic products is completed after the side grading discharge plate 12 is pulled upward and opened, so that the aquatic product weight grading and conveying equipment has a simple structure and significantly improves the grading and conveying efficiency.

[0041] like Figure 3 , Figure 4 As shown, a fixed frame 2 is fixedly connected to the bottom of the single-stage grading conveying frame 1. At least two extrusion springs 25 symmetrically distributed left and right or front and back are arranged at the top of the fixed frame 2, and the top of the extrusion spring 25 is connected and fixed to the bottom of the lifting and grading plate 6. Among them, the extrusion spring 25 plays the role of effectively connecting the fixed frame 2 and the lifting and grading plate 6, so that the lifting and grading plate 6 has the effect of moving downward when subjected to force, so that the aquatic product weight grading and conveying equipment has a simple structure and significantly improves the grading and conveying efficiency. It should be mentioned that two limit bottom plates 62 symmetrically distributed front and back or left and right are arranged at the bottom of the lifting and grading plate 6. Two limit connecting plates 23 respectively matching the corresponding limit bottom plates 62 are arranged at the top of the fixed frame 2. The upper side of the limiting connecting plate 23 is provided with a limiting slot 231 for the limiting bottom plate 62 to be inserted and to reciprocate in the vertical direction, and then when the lifting and grading plate 6 is lifted and lowered in the vertical direction, the limiting bottom plate 62 moves in the limiting slot 231 of the limiting connecting plate 23, so that the fixed frame 2 plays an effective role in improving the stability of the vertical lifting and lowering movement of the lifting and grading plate 6. Among them, when the limiting bottom plate 62 is symmetrically distributed front and back, the extrusion spring 25 is symmetrically distributed left and right, and when the limiting base is symmetrically distributed left and right, the extrusion spring 25 is symmetrically distributed front and back.

[0042] It should be noted that the extrusion and pushing unit includes a lifting sleeve column 7 sleeved on the fixed frame 2 and an extrusion conveying plate 5 inserted in the single-stage grading conveying frame 1. A connecting driving arm 9 is provided between the lifting sleeve column 7 and the lifting grading plate 6, so as to drive the lifting sleeve column 7 to make a corresponding ascending or descending movement when the lifting grading plate 6 makes a descending or ascending movement. At the same time, the lifting sleeve column 7 is connected to a driving arm 3 for connecting with the extrusion conveying plate 5, and when the lifting sleeve column 7 makes an ascending or descending movement, the driving arm 3 drives the extrusion conveying plate 5 to make a corresponding movement toward the front or rear side of the single-stage grading conveying frame 1. Therefore, when the lifting and grading plate 6 moves downward in the vertical direction, the lifting sleeve column 7 is driven to move upward in the vertical direction by connecting the driving arm 9, so that the lifting sleeve column 7 drives the driving arm 3 to move, and the extrusion conveying plate moves toward the front side of the single-stage grading conveying frame 1; accordingly, when the lifting and grading plate 6 moves upward in the vertical direction, the lifting sleeve column 7 is driven to move downward in the vertical direction by connecting the driving arm 9, so that the lifting sleeve column 7 drives the driving arm 3 to move, and the extrusion conveying plate moves toward the rear side of the single-stage grading conveying frame 1, so that when the aquatic product weight grading and conveying equipment performs weight grading and conveying of aquatic products, the weight of the aquatic products drives the lifting and grading plate 6 and the extrusion conveying plate to move at the same time, thereby achieving the purpose of significantly improving the grading and conveying efficiency of aquatic products.

[0043] like Figure 4As shown, a connecting transverse plate 22 is provided at the top of the fixed frame 2. The extrusion spring 25 is fixed on the left and right sides of the connecting transverse plate 22. At the same time, a driving hinge plate 24 is provided on the upper side of both ends of the connecting transverse plate 22, and at least one mutually symmetrical driving hinge part 241 is provided at the upper end of each of the two driving hinge plates 24. It should be noted that a plurality of grading plate hinge parts 61 respectively matched with the corresponding driving hinge parts 241 are provided on the lower side of the lifting and lowering grading plate 6, and a plurality of connecting driving arms 9 are provided and respectively matched with the corresponding grading plate hinge parts 61, and are composed of a connecting upper arm 91 and a connecting lower arm 92. The upper end of the connecting upper arm 91 is connected to the corresponding grading plate hinge part 61 for vertical rotation, the connection between the connecting upper arm 91 and the connecting lower arm 92 is connected to the corresponding driving hinge part 241 for vertical rotation, and the lower end of the connecting lower arm 92 is connected to the lifting sleeve column 7 for vertical rotation. Among them, the vertical distances from the lifting sleeve 7, the driving hinge 241 and the grading plate hinge 61 to the fixed frame 2 gradually increase, and the lower ends of the connecting upper arm 91 and the connecting lower arm 92 form an angle greater than 120° and less than 180°. Therefore, in this embodiment, the connecting cross plate 22 plays the role of connecting the extrusion spring, and the driving hinge 241 on the driving hinge plate 24 is connected to the middle part of the connecting driving arm 9, that is, the connecting upper arm 91 and the connecting lower arm 92. After the connection, when the upper arm 91 connected to the lifting and grading plate 6 at the upper end moves downward with the lifting and grading plate 6 and rotates downward relative to the driving hinge 241, the connecting lower arm 92 moves upward with the lifting and grading plate 6 and rotates upward relative to the driving hinge 241, thereby achieving the effect of driving the lifting sleeve 7 to move vertically upward, so that the aquatic product weight grading and conveying equipment has a simple structure and significantly improves the grading and conveying efficiency.

[0044] In order to further improve the structural coordination of the aquatic product weight grading and conveying equipment, a lifting plate 8 is provided at the upper end of the lifting sleeve 7, and the lower end of the connecting lower arm 92 is connected to the lifting plate 8 for vertical rotation, so that the lifting plate 8 plays the role of effectively connecting with the connecting driving arm 9, thereby achieving the effect of stable grading and conveying.

[0045] It should be mentioned that a connecting sleeve 31 sleeved on the lifting sleeve column 7 is provided at one end of the driving arm 3. The driving arm 3 is arc-shaped and the other end is connected to the extrusion conveying arm 4 for rotation up and down. One end of the extrusion conveying arm 4 is connected to the extrusion conveying plate 5 to drive the extrusion conveying plate 5 to move toward the front or rear side of the single-stage grading conveying frame 1. A hinged end arm 41 is provided at the other end of the extrusion conveying arm 4. The middle part of the hinged end arm 41 is rotationally connected to the driving arm 3, and a hinged end 411 is provided at the end of the hinged end arm 41 away from the extrusion conveying plate 5. At the same time, a fixed hinged portion 21 is provided at the bottom of the fixed frame 2 for rotationally connecting with the hinged end 411. A rotating lifting connecting vertical groove 51 is provided at the rear side of the extrusion conveying plate 5, and the corresponding end of the extrusion conveying arm 4 is inserted into the rotating lifting connecting vertical groove 51, and performs corresponding rotational movement and vertical lifting movement along the length direction of the rotating lifting connecting vertical groove 51 at the same time. Therefore, when the lifting sleeve 7 makes an upward movement in the vertical direction, the connecting sleeve 31 sleeved on the lifting sleeve 7 will be driven to move upward, and then the arc-shaped driving arm 3 connected to the connecting sleeve 31 will pull the extrusion conveying arm 4 upward, so that the extrusion conveying arm 4 makes an upward rotation movement with the axis of the hinged end 411 rotatably connected to the fixed hinge 21 as the axis; at this time, the extrusion conveying arm 4 will push the extrusion conveying plate 5 from the back to the front, so that the extrusion conveying plate 5 moves toward the front side in the single-stage grading conveying frame 1, and achieves the purpose of pushing the aquatic products; at the same time, during the rotation process of the extrusion conveying arm 4, the corresponding end of the extrusion conveying arm 4 moves from the upper end to the lower end of the lifting connection vertical groove, and makes a rotation movement relative to the extrusion conveying plate 5.

[0046] The present application also provides a method for conveying aquatic products by weight grading, which uses the aquatic product weight grading and conveying equipment as described above to significantly reduce the difficulty of conveying aquatic products by weight grading, and ensure that the aquatic products obtained by this method have the same specifications.

[0047] It should be noted that the method for conveying aquatic products by weight classification includes the following steps:

[0048] Step 1: introducing the aquatic products into the single-stage grading conveying frame 1 from the upper end opening of the single-stage grading conveying frame 1 in sequence;

[0049] Step 2: When the aquatic product applies its own weight to the lifting and grading plate 6, the lifting and grading plate 6 descends and drives the extrusion conveying plate 5 to push the aquatic product toward the front side of the single-stage grading conveying frame 1. At this time, if the aquatic product's own weight exceeds the set weight, proceed to step 4, otherwise proceed to step 3;

[0050] Step 3: The side grading discharge plate 12 is pulled upward and opened, and the conveyor belt is started to orderly convey the aquatic products to one side of the side grading discharge plate 12 to complete the grading and conveying;

[0051] Step 4: The aquatic product is pushed by the extrusion conveying plate 5 through the adjusted discharge opening 14 and is transferred out from the corresponding single-stage grading conveying frame 1, and then the step 1 is continued.

[0052] Therefore, after the aquatic products are effectively graded and conveyed through at least two single-stage graded and conveyed frames 1, the graded and conveyed efficiency of the aquatic products can be significantly improved while maintaining the structural integrity of the aquatic products.

[0053] In summary, the present invention has the following beneficial effects: when the aquatic product is placed in the first-order single-stage grading conveying frame 1, the aquatic product will be pressed down by its own gravity to drive the squeezing spring 25 to compress and deform, so that the lifting and grading plate 6 will descend along with the compression and deformation of the squeezing spring 25. At this time, while the height of the adjustment unloading opening 14 between the lifting and grading plate 6 and the front side baffle 13 is increased and the squeezing and conveying plate 5 moves toward the front side of the single-stage grading conveying frame 1, the aquatic product exceeding the set weight is driven by the squeezing and conveying plate 5 to enter the second-order single-stage grading conveying frame through the adjustment unloading opening 14 for subsequent grading and conveying operations; accordingly, the aquatic product not exceeding the set weight The aquatic products will be retained on the lifting and grading plate 6, and at this time the extrusion conveying plate 5 has two different states, one is that it contacts and squeezes the aquatic products, but because the weight of the aquatic products is not enough to pass through the adjusted discharge opening, they are retained on the lifting and grading plate; the second is that there is a certain distance between the aquatic products. At this time, the retained aquatic products can be conveyed out by driving the movement of the conveyor belt and pulling up to open the side grading unloading plate 12, completing the grading and conveying of the corresponding aquatic products, so as to carry out subsequent grading and conveying operations of aquatic products, so that the aquatic product weight grading and conveying equipment has a simple structure and significantly improves the grading and conveying efficiency, and the aquatic product weight grading and conveying method significantly improves the grading and conveying efficiency of aquatic products.

[0054] The "first", "second", "third", "fourth", etc. (if any) referred to in this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods or devices.

[0055] It should be noted that the descriptions involving "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0056] Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A weight grading and conveying device for aquatic products, Features: The invention comprises at least two matched and connected single-stage grading conveying frames (1) and a grading unloading plate (11) for connecting the two single-stage grading conveying frames (1); the upper end of the single-stage grading conveying frame (1) is open to allow aquatic products to enter the single-stage grading conveying frame (1); the bottom of the single-stage grading conveying frame (1) is provided with a lifting grading plate (6) for supporting aquatic products and lowering its height as the quality of the aquatic products increases; the upper side of the lifting grading plate (6) and the front bottom of the single-stage grading conveying frame (1) are formed with an adjustable unloading opening (14) for aquatic products of corresponding shapes and sizes to pass through; and the lifting grading plate (6) is connected to a squeezing and pushing unit, and the squeezing and pushing unit is used to press the lifting grading plate (6) when it is lowered. The single-stage grading conveying frame (1) is moved toward the front side of the single-stage grading conveying frame (1) and squeezes the aquatic products; the bottom of the single-stage grading conveying frame (1) is fixedly connected to a fixed frame (2); the top of the fixed frame (2) is provided with at least two squeezing springs (25) symmetrically distributed left and right or front and back, and the top of the squeezing spring (25) is connected and fixed to the bottom of the lifting and lowering grading plate (6); the bottom of the lifting and lowering grading plate (6) is provided with two limiting bottom plates (62) symmetrically distributed front and back or left and right, and the top of the fixed frame (2) is provided with two limiting connecting plates (23) respectively matched with the corresponding limiting bottom plates (62), and the upper side of the limiting connecting plate (23) is provided with a plurality of springs for the limiting bottom plates (62) to be inserted and move in the vertical direction. The extrusion and pushing unit comprises a lifting sleeve column (7) sleeved on the fixed frame (2) and an extrusion conveying plate (5) inserted in the single-stage grading conveying frame (1); a connecting driving arm (9) is arranged between the lifting sleeve column (7) and the lifting grading plate (6) so as to drive the lifting sleeve column (7) to make a corresponding ascending or descending movement when the lifting grading plate (6) makes a descending or ascending movement; the lifting sleeve column (7) is connected to a driving arm (3) for connecting with the extrusion conveying plate (5); and when the lifting sleeve column (7) makes an ascending or descending movement, the driving arm (3) drives the extrusion conveying plate (5) to make a corresponding ascending or descending movement toward the single-stage grading conveying frame The movable frame (20) is provided with a connecting cross plate (22) at the top end of the fixed frame (2), and the extrusion spring (25) is fixed on the left and right sides of the connecting cross plate (22); the upper sides of both ends of the connecting cross plate (22) are provided with driving hinge plates (24), and the upper ends of the two driving hinge plates (24) are provided with at least one mutually symmetrical driving hinge part (241); the lower side of the lifting and lowering grading plate (6) is provided with a plurality of grading plate hinge parts (61) respectively matched with the corresponding driving hinge parts (241); the connecting driving arm (9) is provided with a plurality of connecting driving arms (9) respectively matched with the corresponding grading plate hinge parts (61), and is composed of a connecting upper arm (91) and a connecting lower arm (92);The upper end of the connecting upper arm (91) is connected to the corresponding grading plate hinge (61) for vertical rotation; the connection between the connecting upper arm (91) and the connecting lower arm (92) is connected to the corresponding driving hinge (241) for vertical rotation; the lower end of the connecting lower arm (92) is connected to the lifting sleeve (7) for vertical rotation; wherein the vertical distances from the lifting sleeve (7), the driving hinge (241) and the grading plate hinge (61) to the fixed frame (2) increase in sequence; the upper end of the lifting sleeve (7) is provided with a lifting plate (8), and the lower end of the connecting lower arm (92) is connected to the lifting plate (8) for vertical rotation; one end of the driving arm (3) is provided with a connecting sleeve (31) sleeved on the lifting sleeve (7); the driving arm (3) is arc-shaped and the other end is connected to the extrusion conveying arm (4) for vertical rotation; the extrusion conveying arm ( 4) is connected to the extrusion conveying plate (5) to drive the extrusion conveying plate (5) to move toward the front or rear side of the single-stage grading conveying frame (1); the other end of the extrusion conveying arm (4) is provided with a hinged end arm (41), the middle part of the hinged end arm (41) is rotatably connected to the driving arm (3), and a hinged end portion (411) is provided at the end of the hinged end arm (41) away from the extrusion conveying plate (5), and a fixed hinged portion (21) is rotatably connected to the hinged end portion (411) at the bottom of the fixed frame (2); the rear side of the extrusion conveying plate (5) is provided with a rotating lifting connection vertical groove (51), and the corresponding end of the extrusion conveying arm (4) is inserted into the rotating lifting connection vertical groove (51), and performs corresponding rotational movement and vertical lifting movement along the length direction of the rotating lifting connection vertical groove (51) at the same time. ; 2. A weight-grading and conveying device for aquatic products according to claim 1, Features: The grading unloading plate (11) is provided with an inclined unloading bottom plate (111) for guiding the movement of aquatic products; the front side of the single-stage grading conveying frame (1) is provided with a front side baffle wall (13), and the regulating unloading opening (14) is formed between the bottom of the front side baffle wall (13) and the upper side of the lifting grading plate (6); the rear side of the single-stage grading conveying frame (1) is provided with a rear opening (15) matching the extrusion and pushing unit; and a side grading unloading plate (12) that can be pulled upward and opened is provided on one side of the single-stage grading conveying frame (1), and the lifting grading plate (6) is provided with a conveyor belt to convey the aquatic products to one side of the side grading unloading plate (12).

3. A method for conveying aquatic products by weight classification, Features: The aquatic product weight grading and conveying device according to any one of claims 1 to 2 is used, and comprises the following steps: Step 1: introducing the aquatic products into the single-stage grading conveying frame (1) in sequence from the upper end opening of the single-stage grading conveying frame (1); Step 2: When the aquatic product applies its own weight to the lifting and grading plate (6), the lifting and grading plate (6) descends and drives the extrusion conveying plate (5) to push the aquatic product toward the front side of the single-stage grading conveying frame (1). At this time, if the aquatic product's own weight exceeds the set weight, proceed to step 4, otherwise proceed to step 3; Step 3, the side grading discharge plate (12) is pulled upward and opened, and the conveyor belt is started to orderly convey the aquatic products to one side of the side grading discharge plate (12) to complete the grading conveyance; Step 4: The aquatic product is pushed by the extrusion conveying plate (5) through the adjusted discharge opening (14) and is discharged from the corresponding single-stage grading conveying frame (1), and then the process continues to step 1.

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