Full-automatic prawn primary processing integrated machine
The fully automated integrated shrimp primary processing machinery has achieved automated sorting, freezing and thawing, positioning and orientation, and head and shell removal of shrimp, solving the problems of high reliance on manual labor and low efficiency in existing technologies, improving production efficiency and reducing labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TIANJIN UNIV
- Filing Date
- 2026-03-23
- Publication Date
- 2026-05-05
AI Technical Summary
The existing shrimp primary processing industry relies on manual operation, which is inefficient, has a low degree of mechanization, and results in low shrimp meat integrity. Furthermore, the various processing links are not integrated, leading to a high dependence on manual transportation.
A fully automated integrated machine for primary processing of shrimp was designed, which includes multiple integrated modules such as sorting, pretreatment, positioning and conveying, processing, cleaning, freezing and packaging. It realizes the automatic sorting, freezing and thawing, positioning and orientation, head removal and shell removal of shrimp, and uses a variety of mechanical means to process shrimp one by one.
The entire process is fully automated, requiring no manual assistance, which improves production efficiency, reduces labor costs, and produces whole, undamaged shrimp, thus reducing the space required in the workshop.
Smart Images

Figure CN121970793A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of shrimp processing, specifically relating to a fully automatic integrated machine for primary processing of shrimp. Background Technology
[0002] The existing shrimp primary processing industry mostly relies on a large number of workers to manually peel shrimp, resulting in high labor dependence, low efficiency, and low mechanization. Existing shrimp processing machinery uses deep back opening to remove the shrimp vein and shell, resulting in low shrimp meat integrity; it also requires manual placement of shrimp meat in fixed positions, still resulting in high labor dependence; and it has low integration, with mechanical equipment only targeting a single processing stage, rather than organically connecting various stages, leaving shrimp meat transfer dependent on manual labor. Summary of the Invention
[0003] This invention is proposed to solve the problems existing in the prior art, and its purpose is to provide a fully automatic integrated machine for primary processing of shrimp.
[0004] The technical solution of this invention is: a fully automatic integrated machine for primary processing of shrimp, comprising a sorting component for sorting shrimp, a pre-treatment component on the discharge side of the sorting component for pre-processing the sorted shrimp, a positioning conveying component on the discharge side of the pre-treatment component for outputting shrimp one by one, with the shrimp head and tail facing the same direction; a processing component on the discharge side of the positioning conveying component for processing the positioned shrimp; a cleaning and freezing component on the discharge side of the processing component; and a packaging component on the discharge side of the cleaning and freezing component.
[0005] Furthermore, the sorting assembly includes a sorting frame, which includes a shorter feed plate, parallel sorting side baffles on both sides of the feed plate, a back plate on the other side of the two sorting side baffles, and a rotating sorting roller between the feed plate and the back plate. An inclined sorting output guide plate is provided below the sorting frame.
[0006] Furthermore, the sorting roller is a tapered cylinder with a gradually changing diameter, and the diameter of the end of the sorting roller facing the back plate is larger than the diameter of the end facing the feed plate.
[0007] Furthermore, the pretreatment component includes a freezing component and a thawing component, which are connected in series between the sorting component and the positioning and conveying component.
[0008] Furthermore, the freezing assembly includes a freezer with a linear inlet and outlet, through which a freezing conveyor belt passes; the thawing assembly includes a thawing machine with a linear inlet and outlet, through which a thawing conveyor belt passes.
[0009] Furthermore, the positioning and conveying component includes a storage tank, with a positioning feed port formed on one side of the storage tank, which corresponds to the discharge side of the pretreatment component. The bottom of the storage tank is provided with a large sloping bottom that slopes towards the outlet side.
[0010] Furthermore, the storage tank is open at the low point of its large sloping bottom, and a reciprocating lifting and separating component is installed at the open point. The reciprocating lifting and separating component moves vertically back and forth and includes a horizontally arranged continuous stepped platform. The stepped platform forms an inclined surface that tilts towards the discharge side. Under the reciprocating lifting and separating motion, the continuous stepped platform separates and transports shrimp one by one.
[0011] Furthermore, a sliding ramp is provided at the outlet of the positioning and conveying component, from which the shrimp slide out, and a dividing block is provided in the sliding ramp, which causes the shrimp's head to slide out first.
[0012] Furthermore, the processing assembly includes a processing conveyor belt that transports shrimp one by one, the processing conveyor belt passing through a gantry frame, the top of the gantry frame being provided with downward positioning suction cups, and the gantry frame also being provided with brushes.
[0013] Furthermore, shrimp tail claws and shrimp head claws are respectively provided on both sides of the gantry frame. The shrimp tail claws and shrimp head claws have the same structure. The two claw fingers of the shrimp tail claw are arranged vertically, and the two claw fingers of the shrimp head claw are arranged horizontally.
[0014] The beneficial effects of this invention are as follows: This invention automates the entire process of shrimp sorting, freezing and thawing, positioning and orientation, and head, vein, and shell removal, resulting in whole, undamaged, and unopened shrimp meat. The entire process requires no manual assistance, greatly reducing labor costs. This invention also features multi-module integration, reducing workshop space requirements and improving production efficiency. Attached Figure Description
[0015] Figure 1 This is a three-dimensional view of the overall structure of the present invention; Figure 2 This is a perspective view of the sorting component in this invention; Figure 3 This is a schematic diagram of the preprocessing component in this invention; Figure 4 This is a perspective view of the positioning and conveying component in this invention; Figure 5 This is a schematic diagram of the processing components in this invention; Figure 6 This is a schematic diagram of the shrimp tail claw structure in this invention; The components include: 1. Sorting assembly; 2. Pre-processing assembly; 3. Positioning conveyor assembly; 4. Processing assembly; 11. Sorting stand; 12. Sorting frame; 13. Sorting roller; 14. Sorting side baffle; 15. Sorting output guide plate; 21. Freezing conveyor belt; 22. Freezing conveyor motor; 23. Freezer; 24. Thawing conveyor motor; 25. Thawing machine; 26. Thawing conveyor belt; 31. Dividing block; 32. Sliding ramp; 33. Stepped platform; 34. Stepped sidewall; 35. Storage. 36. Storage tank with large sloping bottom; 37. Positioning feed inlet; 38. Frame; 39. Rack and pinion guide rail; 310. Drive motor; 311. Slider; 312. Lifting platform; 313. Positioning outlet channel; 41. Shrimp tail gripper; 42. Positioning suction cup; 43. Gantry frame; 44. Brush; 45. Shrimp head gripper; 46. Chassis; 47. Processing conveyor belt; 411. Gripper fingers; 412. Drive screw; 413. Gripper slider; 414. Central connecting rod; 415. Gripper seat. Detailed Implementation
[0016] The present invention will now be described in detail with reference to the accompanying drawings and embodiments: like Figures 1 to 6 As shown, a fully automatic integrated shrimp primary processing machine includes a sorting component 1 for sorting shrimp, a pre-processing component 2 on the discharge side of the sorting component 1 for pre-processing the sorted shrimp, a positioning conveying component 3 on the discharge side of the pre-processing component 2 for outputting shrimp one by one with the head and tail facing the same direction, a processing component 4 on the discharge side of the positioning conveying component 3 for processing the positioned shrimp, a cleaning and freezing component on the discharge side of the processing component 4, and a packaging component on the discharge side of the cleaning and freezing component.
[0017] The sorting assembly 1 includes a sorting frame 12, which includes a shorter feed plate. Parallel sorting side baffles 14 are provided on both sides of the feed plate. A back plate is provided on the other side of the two sorting side baffles 14. A rotating sorting roller 13 is provided between the feed plate and the back plate. An inclined sorting output guide plate 15 is provided below the sorting frame 12.
[0018] The sorting roller 13 is a tapered cylinder with a gradually changing diameter, and the diameter of the end of the sorting roller 13 facing the back plate is larger than the diameter of the end facing the feed plate.
[0019] The pretreatment component 2 includes a freezing component and a thawing component, and the freezing component and the thawing component are connected in series between the sorting component 1 and the positioning and conveying component 3.
[0020] The freezing assembly includes a freezer 23 with a linear inlet and outlet, through which a freezing conveyor belt 21 passes; the thawing assembly includes a thawing machine 25 with a linear inlet and outlet, through which a thawing conveyor belt 26 passes.
[0021] The positioning and conveying component 3 includes a storage tank 35, with a positioning feed port 37 formed on one side of the storage tank 35. The positioning feed port 37 corresponds to the discharge side of the pretreatment component 2. The bottom of the storage tank 35 is provided with a large inclined bottom 36 that slopes towards the outlet side.
[0022] The storage tank 35 is open at the low point of the large sloping bottom 36 of the storage tank, and a reciprocating lifting separation component is set at the open part. The reciprocating lifting separation component moves vertically back and forth. The reciprocating lifting separation component includes a horizontally arranged continuous stepped platform 33. The stepped platform 33 forms an inclined surface that is inclined towards the discharge side. Under the reciprocating lifting motion, the continuous stepped platform 33 separates and transports shrimp one by one.
[0023] The positioning and conveying component 3 is provided with a sliding ramp 32 at its outlet. Shrimp slide out from the sliding ramp 32, and a dividing block 31 is provided in the sliding ramp 32, which causes the shrimp head to slide out first.
[0024] The processing component 4 includes a processing conveyor belt 47 for transporting shrimp one by one. The processing conveyor belt 47 passes through a gantry frame 43. The top of the gantry frame 43 is provided with a downward positioning suction cup 42, and a brush 44 is also provided in the gantry frame 43.
[0025] The gantry frame 43 is provided with shrimp tail claws 41 and shrimp head claws 45 on both sides respectively. The shrimp tail claws 41 and shrimp head claws 45 have the same structure. The two claw fingers 411 in the shrimp tail claws 41 are arranged vertically, and the two claw fingers 411 in the shrimp head claws 45 are arranged horizontally.
[0026] Specifically, the sorting component 1 adopts a top-in, bottom-out feeding method, the pre-processing component 2 adopts a linear feeding and discharging method, the feeding side and the discharging side of the positioning conveyor component 3 are at 90 degrees, and the turning of the processing line is realized at the positioning conveyor component 3, the processing component 4 adopts a linear feeding and discharging method, and the cleaning and freezing component and the packaging component after the processing component 4 are commercially available structures, which will not be described in detail here.
[0027] like Figure 2 As shown, the sorting frame 12 is placed on the sorting stand 11, which provides a certain elevation so that the sorted shrimp slide into the frozen conveyor belt 21 under the guidance of the sorting output guide plate 15.
[0028] like Figure 3As shown, the freezing conveyor belt 21 is driven by the freezing conveyor motor 22, and the thawing conveyor belt 26 is driven by the thawing conveyor motor 24. Preferably, the freezing conveyor belt 21 and the thawing conveyor belt 26 have the same bandwidth.
[0029] like Figure 4 As shown, the storage slot 35 is mounted on the frame 38, and the frame 38 is a fixed structure. Conversely, the reciprocating lifting and separating assembly includes a lifting frame, which includes a side column. A rack guide rail 39 is provided in the side column, and a slider 311 is provided in the rack guide rail 39, along which a drive motor 310 is provided. The drive teeth on the main shaft of the drive motor 310 mesh with the rack guide rail 39.
[0030] Specifically, the reciprocating lifting and separating component includes stepped sidewalls 34, with continuous stepped platforms 33 arranged between the stepped sidewalls 34, and the stepped platforms 33 are connected to the lifting platform 312. The lifting platform 312 is driven by the lifting frame, and the continuous stepped platforms 33 reciprocate.
[0031] Specifically, the top of the stepped platform 33 forms an inclined surface that slopes towards the sliding ramp 32. Simultaneously, the width of the steps in the stepped platform 33 is slightly larger than the width of a single shrimp but insufficient to accommodate two shrimp. Through reciprocating motion and the action of the inclined surface, the shrimp are transported one by one.
[0032] Specifically, the sliding ramp 32 is set on the outlet side of the positioning and conveying component 3, and the horizontally placed shrimp slides down the sliding ramp 32.
[0033] Meanwhile, a dividing block 31 is provided in the sliding ramp 32. The dividing block 31 has a teardrop-shaped cross-section, with its arrow pointing towards the shrimp's entry direction and located at the center line of the sliding ramp 32. The dividing block 31 supports the middle of the shrimp entering laterally. In this way, since the shrimp's head is heavier, the shrimp head side slides down first and enters the positioning exit channel 313. The positioning exit channel 313 is composed of two symmetrical guide plates. The distance between the guide plates and the side wall of the dividing block 31 is greater than the width of the shrimp.
[0034] The shrimp head first passes through positioning channel 313 and enters the conveyor trough of processing conveyor belt 47.
[0035] like Figure 5 As shown, the top of the gantry 43 is provided with a lead screw structure. The lead screw structure serves as the active drive, which can drive the brush 44 and the positioning suction cup 42 to move laterally. This lateral movement is perpendicular to the conveying direction of the processing conveyor belt 47, and both the gantry 43 and the processing conveyor belt 47 are mounted on the chassis 46.
[0036] Specifically, the shrimp tail gripper 41 and the shrimp head gripper 45 are both capable of single-degree-of-freedom translation, and the lateral movement direction of the shrimp tail gripper 41 and the shrimp head gripper 45 is to approach or move away from the processing conveyor belt 47.
[0037] like Figure 6 As shown, taking the shrimp tail claw 41 as an example, the shrimp tail claw 41 includes two claw fingers 411. The ends of the two claw fingers 411 are movably hinged to the claw seat 415, and the middle part of the claw fingers 411 is movably hinged to the middle connecting rod 414.
[0038] Meanwhile, the other ends of the two central connecting rods 414 are movably connected to the gripper slider 413. The gripper slider 413 has a built-in nut, through which the drive screw 412 drives the gripper slider 413. The drive screw 412 drives the gripper slider 413 to move linearly, so as to realize the clamping and opening of the two gripper fingers 411.
[0039] Specifically, after sorting, the shrimp are conveyed through the freezing module and the thawing module in sequence to complete the freezing to thawing pretreatment, which causes a slight separation between the shrimp shell and the shrimp meat, making it easier to remove the shells in the subsequent process.
[0040] Specifically, the positioning and conveying component 3 moves up and down through the reciprocating lifting and separating component. The top of the step platform 33 is a downward and forward inclined surface. When the step moves up and down, it can continuously transport shrimp upwards. The width of the step is slightly larger than the width of a shrimp but not wide enough to accommodate two shrimp. This allows the pile of shrimp to gradually disperse during the multi-step conveying process, and they are sent to the next mechanism one by one. The shrimp are placed horizontally during the dispersion process.
[0041] Specifically, in the processing component 4, the gripper fingers 411 use a lead screw drive linkage to realize the closing and opening of the gripper fingers 411. Simultaneously, the single-degree-of-freedom movement of the gripper base 415 uses a gear and rack guide rail to realize the forward and backward movement of the shrimp tail gripper 41 and the shrimp head gripper 45. Limit switches are also set at the two extreme positions of the forward and backward movement on the guide rail to control the movement and stopping of the shrimp tail gripper 41 and the shrimp head gripper 45.
[0042] The peeling process for processing component 4 is as follows: First, the upper cylinder drives the positioning suction cup 42 to move downward, presses down on the shell of the two segments behind the shrimp head and sucks it tightly, thus fixing the shrimp body; Then, the blade in the support moves upward to cut at the junction of the shrimp head and body without severing it, so as to avoid cutting the shrimp vein; Then, the shrimp tail claw 41 and the shrimp head claw 45 move towards each other, respectively grasping the fan-shaped shells of the shrimp head and tail. Then, the shrimp tail claw 41 and the shrimp head claw 45 move in opposite directions. The claw that grabs the shrimp head pulls the shrimp head and removes it along with the shrimp vein. The claw that grabs the shrimp tail peels off all the shells after the two segments behind the head completely. Then, the positioning suction cup 42 is released, the cylinder retracts, the upper guide rail moves towards the shrimp tail, and the suction cup is lowered again to fix the shrimp meat. Finally, brush 44 is lowered and activated to brush away any remaining one or two segments of shell from the shrimp. After the operation is complete, all tools are returned to their positions, and the conveyor belt moves to process the next shrimp.
[0043] This invention automates the entire process of shrimp sorting, freezing and thawing, positioning and orientation, and head, vein, and shell removal, resulting in whole, undamaged, and unopened shrimp meat. The entire process requires no manual assistance, greatly reducing labor costs. This invention also features multi-module integration, reducing workshop space requirements and improving production efficiency.
Claims
1. A fully automatic integrated machine for primary processing of shrimp, comprising a sorting component (1) for sorting shrimp, characterized in that: The sorting component (1) is provided with a pre-treatment component (2) on the discharge side. The pre-treatment component (2) pre-treats the sorted shrimp. The pre-treatment component (2) is provided with a positioning conveying component (3) on the discharge side. The positioning conveying component (3) outputs shrimp one by one, and the shrimp heads and tails of the output shrimp are in the same direction. The positioning conveying component (3) is provided with a processing component (4) on the discharge side. The processing component (4) processes the positioned shrimp. The processing component (4) is provided with a cleaning and freezing component on the discharge side. The cleaning and freezing component is provided with a packaging component on the discharge side.
2. The fully automatic integrated machine for primary processing of shrimp according to claim 1, characterized in that: The sorting assembly (1) includes a sorting frame (12), which includes a shorter feed plate. Parallel sorting side baffles (14) are provided on both sides of the feed plate. A back plate is provided on the other side of the two sorting side baffles (14). A rotating sorting roller (13) is provided between the feed plate and the back plate. An inclined sorting output guide plate (15) is provided below the sorting frame (12).
3. The fully automatic integrated machine for primary processing of shrimp according to claim 2, characterized in that: The sorting roller (13) is a tapered cylinder with a gradually changing diameter. The diameter of the end of the sorting roller (13) facing the back plate is larger than the diameter of the end facing the feed plate.
4. The fully automatic integrated machine for primary processing of shrimp according to claim 1, characterized in that: The pretreatment component (2) includes a freezing component and a thawing component, and the freezing component and the thawing component are connected in series between the sorting component (1) and the positioning and conveying component (3).
5. The fully automatic integrated machine for primary processing of shrimp according to claim 4, characterized in that: The freezing assembly includes a freezer (23) with a linear inlet and outlet, through which a freezing conveyor belt (21) passes; the thawing assembly includes a thawing machine (25) with a linear inlet and outlet, through which a thawing conveyor belt (26) passes.
6. The fully automatic integrated machine for primary processing of shrimp according to claim 1, characterized in that: The positioning and conveying component (3) includes a storage tank (35), a positioning feed port (37) is formed on one side of the storage tank (35), the positioning feed port (37) corresponds to the discharge side of the pretreatment component (2), and the bottom of the storage tank (35) is provided with a large inclined bottom (36) that slopes towards the outlet side.
7. The fully automatic integrated machine for primary processing of shrimp according to claim 6, characterized in that: The storage tank (35) is open at the low point of the large sloping bottom (36) of the storage tank, and a reciprocating lifting separation component is provided at the open part. The reciprocating lifting separation component moves vertically back and forth. The reciprocating lifting separation component includes a horizontally arranged continuous stepped platform (33). The stepped platform (33) forms an inclined surface that is inclined towards the discharge side. Under the reciprocating lifting motion, the continuous stepped platform (33) separates and transports shrimp one by one.
8. The fully automatic integrated machine for primary processing of shrimp according to claim 7, characterized in that: The positioning and conveying component (3) is provided with a sliding ramp (32) at its outlet. The shrimp slides out from the sliding ramp (32), and a dividing block (31) is provided in the sliding ramp (32). The dividing block (31) causes the shrimp's head to slide out first.
9. The fully automatic integrated machine for primary processing of shrimp according to claim 1, characterized in that: The processing component (4) includes a processing conveyor belt (47) for transporting shrimp one by one. The processing conveyor belt (47) passes through a gantry frame (43). A downward positioning suction cup (42) is provided on the top of the gantry frame (43), and a brush (44) is also provided in the gantry frame (43).
10. The fully automatic integrated machine for primary processing of shrimp according to claim 9, characterized in that: The gantry frame (43) is provided with shrimp tail claws (41) and shrimp head claws (45) on both sides respectively. The shrimp tail claws (41) and shrimp head claws (45) have the same structure. The two claw fingers (411) in the shrimp tail claws (41) are arranged vertically, and the two claw fingers (411) in the shrimp head claws (45) are arranged horizontally.