Metal detection system for aquatic product processing

Abstract

The metal detection system for aquatic product processing comprises a conveying belt, a detection box, a metal detector and a self-checking mechanism, and the self-checking mechanism comprises a first hydraulic rod, a bearing plate, an aquatic product simulant, a rotating motor, a pull rope, a metal block, a mounting plate, a first electric push rod, a moving rod, an electromagnet, a heating piece, a humidifier, an alarm and a main control unit. The first electric push rod can drive the electromagnet to move through the moving rod, the electromagnet can drive the metal block magnetically attracted with the electromagnet to move and stretch into the through holes of the aquatic product simulant, the through holes are multiple, and aquatic products with metal substances located at different positions can be simulated; the first hydraulic rod can descend the aquatic product simulant with the metal block onto the conveying belt, and meanwhile, the heating plate and the humidifier can change the temperature and humidity in the detection box to verify the metal detection effects of the metal detector in different environments, so that the metal detector can be replaced or maintained in time when having a fault, and the food safety of aquatic products is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of aquatic product processing, and particularly relates to a metal detection system for aquatic product processing. Background Art

[0002] With the improvement of living standards, people's dietary needs have become diverse. After harvesting, aquatic products are not only sold as fresh products, but also processed in processing plants, including removing impurities, viscera, and slicing the aquatic products. The processed aquatic products can be pickled, frozen, and packaged, so that consumers can directly open the package for cooking without going through the slaughter process. However, during the processing of aquatic products, they are easily contaminated, and metal contamination is a common problem in the food processing process, which not only affects the quality of food but also may pose a health threat to consumers. Currently, when processing aquatic products in processing plants, electromagnetic induction metal detectors are mainly used for detection. After the aquatic products pass through the metal detector, the metal detector will detect whether there is metal in the aquatic products to facilitate the staff to remove it. However, during long-term use, the metal detector will age and be damaged, and environmental changes will have a great impact on its detection results. Currently, in aquatic product processing plants, the detection function of the metal detector is not self-checked in a timely manner, resulting in some aquatic products containing metal impurities flowing into the market, causing food safety problems, which not only endanger the health of consumers but also affect the operation of processing plants and distributors. Summary of the Invention

[0003] In view of this, the present invention provides a metal detection system for aquatic product processing, which can push metal blocks into aquatic product simulants to simulate aquatic products with metal, so as to self-check the detection function of the metal detector, facilitating timely repair or replacement when the metal detector fails.

[0004] The technical solution of the present invention is realized as follows:

[0005] A metal detection system for aquatic product processing, comprising a conveyor belt, a detection box, a metal detector and a self-check mechanism. The opposite side walls of the detection box are provided with inlets and outlets, and the conveyor belt passes through the detection box through the inlets and outlets. The metal detector is arranged on the inner top surface of the detection box. The self-check mechanism includes a first hydraulic rod, a bearing plate, an aquatic product simulation object, a rotating motor, a pulling rope, a metal block, a mounting plate, a first electric push rod, a moving rod, an electromagnet, a heating sheet, a humidifier, an alarm and a main control unit. The first hydraulic rod is arranged on the inner top surface of the detection box, and its output shaft is connected to the top surface of the bearing plate. The aquatic product simulation object is placed on the bearing plate, and a plurality of through pores are arranged on its side wall. The rotating motor is arranged on the inner top surface of the detection box. The top end of the pulling rope is wound around the output shaft of the rotating motor, and its bottom end is connected to the top surface of the metal block. The mounting plate is arranged on the inner top surface of the detection box. The first electric push rod is arranged on the side wall of the mounting plate, and its output shaft is connected to one end of the moving rod. The other end of the moving rod is connected to the electromagnet. The electromagnet is located on one side of the metal block. The through pores are located on the moving path of the metal block. The heating sheet and the humidifier are arranged on the inner side wall of the detection box. The alarm and the main control unit are arranged on the top surface of the detection box. The main control unit is electrically connected to the conveyor belt, the metal detector, the first hydraulic rod, the rotating motor, the metal block, the first electric push rod, the electromagnet, the heating sheet, the humidifier and the alarm respectively.

[0006] Preferably, it further includes an electric control door, which is arranged inside the inlet and outlet, and the main control unit is electrically connected to the electric control door.

[0007] Preferably, the mounting plate includes a hollow plate, a lifting plate and a second electric push rod. The hollow plate is arranged on the inner top surface of the detection box, and its bottom surface is open. The top surface of the lifting plate extends into the hollow plate. The second electric push rod is arranged on the inner top surface of the hollow plate, and its output shaft is connected to the top surface of the lifting plate. The first electric push rod is arranged on the side wall of the lifting plate, and the main control unit is electrically connected to the second electric push rod.

[0008] Preferably, the self-check mechanism further includes an electric sliding table, which is arranged on the inner top surface of the detection box. The top surface of the hollow plate is connected to the bottom surface of the moving part of the electric sliding table, and the main control unit is electrically connected to the electric sliding table.

[0009] Preferably, the self-check mechanism further includes a U-shaped frame, a rotating rod, a rotating shaft and a bearing. The U-shaped frame is arranged on the top surface of the bearing plate. The bearings are oppositely arranged on the inner side walls of the U-shaped frame. The output shaft of the first hydraulic rod is connected to the top end of the rotating rod. The bottom end of the rotating rod extends into the U-shaped frame. The rotating shaft is arranged on the outer side wall of the rotating rod and is connected to the bearing.

[0010] Preferably, the self-check mechanism further includes a second hydraulic rod and a pressing plate. The second hydraulic rod is arranged on the inner top surface of the detection box, and its output shaft is connected to the top surface of the pressing plate. The pressing plate is located above the bearing plate, and the main control unit is electrically connected to the second hydraulic rod.

[0011] Preferably, the self-check mechanism further includes a water tank, a water pipe and an electric control sprinkler. The water tank is arranged on the top surface of the pressing plate, the electric control sprinkler is embedded in the bottom surface of the pressing plate, the water pipe connects the water tank and the electric control sprinkler, and the main control unit is electrically connected to the electric control sprinkler.

[0012] Preferably, it further includes a ventilation fan. The ventilation fans are oppositely arranged on the side walls of the detection box, and the main control unit is electrically connected to the ventilation fans.

[0013] Preferably, a slope plate is arranged on the side wall of the bearing plate away from the metal block.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] ① The aquatic products to be detected can be placed on the conveyor belt for transportation. When the aquatic products are transported into the detection box, the metal detector can detect whether there is metal in the aquatic products. The detected aquatic products can be transported from the detection box to the outside to complete the detection process, ensuring the food safety of the aquatic products.

[0016] ② The first electric push rod can push the metal block into the aquatic product simulant through the electromagnet. Driven by the first hydraulic rod, the aquatic product simulant and the bearing plate will descend above the conveyor belt, so that the metal detector can perform self-check by detecting the metal block in the aquatic product simulant, facilitating timely maintenance or replacement in case of failure and ensuring the accuracy of the metal detection result of the aquatic products.

[0017] ③ A heating sheet and a humidifier are also arranged in the detection box, which can adjust the temperature and humidity in the detection box, thereby changing the use environment of the metal detector, facilitating self-check of the metal detector in different environments, and further verifying whether the performance of the metal detector is intact. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only the preferred embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of a metal detection system for aquatic product processing according to the present invention;

[0020] Figure 2 Schematic diagram of the connection structure between the self-checking mechanism and the detection box of a metal detection system for aquatic product processing according to the present invention;

[0021] Figure 3 Schematic diagram of the structure of an aquatic product analog of a metal detection system for aquatic product processing according to the present invention;

[0022] Figure 4 Schematic diagram of the connection structure between the first hydraulic rod and the bearing plate of a metal detection system for aquatic product processing according to the present invention;

[0023] In the figure, 1, conveyor belt; 2, detection box; 3, metal detector; 4, inlet and outlet; 5, first hydraulic rod; 6, bearing plate; 7, aquatic product analog; 8, rotating motor; 9, pulling rope; 10, metal block; 11, mounting plate; 12, first electric push rod; 13, moving rod; 14, electromagnet; 15, heating sheet; 16, humidifier; 17, alarm; 18, main control unit; 19, through hole; 20, electric control door; 21, hollow plate; 22, lifting plate; 23, second electric push rod; 24, electric sliding table; 25, U-shaped frame; 26, rotating rod; 27, rotating shaft; 28, bearing; 29, second hydraulic rod; 30, pressing plate; 31, water tank; 32, water pipe; 33, electric control spray head; 34, ventilation fan; 35, inclined plate. Detailed implementation manners

[0024] For a better understanding of the technical content of the present invention, a specific embodiment is provided below, and the present invention will be further described in conjunction with the accompanying drawings.

[0025] See Figures 1 to 3, a metal detection system for aquatic product processing provided by the present invention includes a conveyor belt 1, a detection box 2, a metal detector 3 and a self-check mechanism. Import and export openings 4 are provided on the opposite side walls of the detection box 2. The conveyor belt 1 passes through the detection box 2 through the import and export openings 4. The metal detector 3 is arranged on the inner top surface of the detection box 2. The self-check mechanism includes a first hydraulic rod 5, a bearing plate 6, an aquatic product simulator 7, a rotary motor 8, a pull rope 9, a metal block 10, a mounting plate 11, a first electric push rod 12, a moving rod 13, an electromagnet 14, a heating sheet 15, a humidifier 16, an alarm 17 and a main control unit 18. The first hydraulic rod 5 is arranged on the inner top surface of the detection box 2, and its output shaft is connected to the top surface of the bearing plate 6. The aquatic product simulator 7 is placed on the bearing plate 6, and a number of through pores 19 are provided on its side wall. The rotary motor 8 is arranged on the inner top surface of the detection box 2. The top end of the pull rope 9 is wound around the output shaft of the rotary motor 8, and its bottom end is connected to the top surface of the metal block 10. The mounting plate 11 is arranged on the inner top surface of the detection box 2. The first electric push rod 12 is arranged on the side wall of the mounting plate 11, and its output shaft is connected to one end of the moving rod 13. The other end of the moving rod 13 is connected to the electromagnet 14. The electromagnet 14 is located on one side of the metal block 10. The through pores 19 are located on the moving path of the metal block 10. The heating sheet 15 and the humidifier 16 are arranged on the inner side wall of the detection box 2. The alarm 17 and the main control unit 18 are arranged on the top surface of the detection box 2. The main control unit 18 is electrically connected to the conveyor belt 1, the metal detector 3, the first hydraulic rod 5, the rotary motor 8, the metal block 10, the first electric push rod 12, the electromagnet 14, the heating sheet 15, the humidifier 16 and the alarm 17 respectively.

[0026] Place the aquatic product to be detected on the conveyor belt 1 for transportation. The conveyor belt 1 will carry the aquatic product into the detection box 2 through the import and export openings 4. A metal detector 3 is arranged on the inner top surface of the detection box 2. The metal detector 3 can detect whether there is metal substance in the aquatic product, so that the staff can remove the aquatic product containing metal substance to avoid flowing into the market and causing food safety problems. After detection, the aquatic product can be transported to the outside through the import and export openings 4 on the other side.

[0027] During the use of the metal detector 3, it is inevitable that its accuracy will decrease due to external factors. Therefore, it is necessary to self-check the metal detection ability of the metal detector 3. A bearing plate 6 is provided on the top of the detection box 2, and an aquatic product simulator 7 is placed on the bearing plate 6. The aquatic product simulator 7 can be made of materials such as silica gel, gel, and plastic, and the hardness and elasticity can be changed by adjusting the formula. A number of through pores 19 are provided on the side wall of the aquatic product simulator 7. During self-check, the first electric push rod 12 drives the electromagnet 14 to move through the moving rod 13. At the same time, after the electromagnet 14 is energized, it can magnetically attract the metal block 10. At the same time, the rotating motor 8 releases the pulling rope 9. The first electric push rod 12 can drive the metal block 10 into the through pores 19 to simulate the metal substances in aquatic products. After the metal block 10 reaches the designated position, the power supply of the electromagnet 14 is cut off, and the electromagnet 14 is moved away from the through pores 19, so that the metal block 10 can remain in the aquatic product simulator 7. Finally, the first hydraulic rod 5 can drive the bearing plate 6 to descend above the conveyor belt 1, and the metal detector 3 is used to detect whether there are metal substances in the aquatic product simulator 7, so as to realize the self-check function of the metal detector 3. If the metal detector 3 cannot detect the presence of the metal block 10, the main control unit 18 can control the alarm 17 to send an alarm to prompt the staff, so that the metal detector 3 can be repaired, maintained or replaced in time.

[0028] For the aquatic product simulator 7, a number of through pores 19 are provided on it, and the metal block 10 can enter different through pores 19 to simulate the metal substances at different positions in aquatic products, improving the accuracy of the self-check results. After the self-check is completed, the rotating motor 8 can wind up the pulling rope 9 to move the metal block 10 out of the through pores 19, so as to be replaced into different through pores 19 for detection. In addition, a heating sheet 15 and a humidifier 16 are also provided in the detection box 2 to adjust the temperature and humidity environment in the detection box 2, so as to simulate different use environments of the metal detector 3 and further improve the accuracy of the self-check results.

[0029] Preferably, it further includes an electric control door 20, and the electric control door 20 is arranged inside the inlet and outlet 4, and the main control unit 18 is electrically connected to the electric control door 20.

[0030] The electric control door 20 is used to open and close the inlet and outlet 4, so that the heating sheet 15 and the humidifier 16 can quickly adjust the temperature and humidity environment in the detection box 2.

[0031] Preferably, the mounting plate 11 includes a hollow plate 21, a lifting plate 22, and a second electric push rod 23. The hollow plate 21 is arranged on the inner top surface of the detection box 2, with its bottom surface open. The top surface of the lifting plate 22 extends into the hollow plate 21. The second electric push rod 23 is arranged on the inner top surface of the hollow plate 21, and its output shaft is connected to the top surface of the lifting plate 22. The first electric push rod 12 is arranged on the side wall of the lifting plate 22, and the main control unit 18 is electrically connected to the second electric push rod 23.

[0032] The second electric push rod 23 can drive the lifting plate 22 to lift and lower along the hollow plate 21, thereby adjusting the height of the metal block 10, so that the metal block 10 can be lifted to one side of the through holes 19 at different heights.

[0033] Preferably, the self-checking mechanism further includes an electric slide table 24. The electric slide table 24 is arranged on the inner top surface of the detection box 2. The top surface of the hollow plate 21 is connected to the bottom surface of the mover of the electric slide table 24. The main control unit 18 is electrically connected to the electric slide table 24.

[0034] The electric slide table 24 can drive the entire mounting plate 11 to move back and forth. Through the electric slide table 24, the first electric push rod 12, and the second electric push rod 23, the metal block 10 can be moved up, down, left, right, back, and forth, so that the metal block 10 can enter the through holes 19 at any height and position, thereby simulating metal substances in aquatic products at different parts, so as to fully detect the metal detection ability of the metal detector 3.

[0035] Preferably, the self-checking mechanism further includes a U-shaped frame 25, a rotating rod 26, a rotating shaft 27, and a bearing 28. The U-shaped frame 25 is arranged on the top surface of the bearing plate 6. The bearings 28 are oppositely arranged on the inner side walls of the U-shaped frame 25. The output shaft of the first hydraulic rod 5 is connected to the top end of the rotating rod 26. The bottom end of the rotating rod 26 extends into the U-shaped frame 25. The rotating shaft 27 is arranged on the outer side wall of the rotating rod 26 and is connected to the bearing 28.

[0036] The first hydraulic rod 5 is rotatably connected to the bearing plate 6. When the bearing plate 6 descends to a certain distance from the conveyor belt 1, one side of the first hydraulic rod 5 stops driving, and the first hydraulic rod 5 on the other side will continue to drive the bearing plate 6 to descend, so that the rotating shaft 27 on the side wall of the rotating rod 26 can rotate with the bearing 28 as a support, adjusting the angle of the bearing plate 6 to make the bearing plate 6 in an inclined state. Finally, the aquatic product simulator 7 can slide onto the conveyor belt 1. The conveyor belt 1 can move the aquatic product simulator 7 to the lower part of the metal detector 3 for metal detection. After the detection is completed, the conveyor belt 1 can transport in the reverse direction to make the aquatic product simulator 7 return to the inclined bearing plate 6.

[0037] Preferably, the self-check mechanism further includes a second hydraulic rod 29 and a pressing plate 30. The second hydraulic rod 29 is disposed on the inner top surface of the detection box 2, and its output shaft is connected to the top surface of the pressing plate 30. The pressing plate 30 is located above the bearing plate 6, and the main control unit 18 is electrically connected to the second hydraulic rod 29.

[0038] After the simulated aquatic product 7 that has completed the detection rises above the detection box 2 following the bearing plate 6, the second hydraulic rod 29 can drive the pressing plate 30 to press the simulated aquatic product 7, so as to facilitate the pulling of the metal block 10 out of the through hole 19 after the rotating motor 8 winds up the pulling rope 9.

[0039] Preferably, the self-check mechanism further includes a water tank 31, a water pipe 32, and an electric control spray head 33. The water tank 31 is disposed on the top surface of the pressing plate 30. The electric control spray head 33 is embedded in the bottom surface of the pressing plate 30. The water pipe 32 connects the water tank 31 and the electric control spray head 33, and the main control unit 18 is electrically connected to the electric control spray head 33.

[0040] Before lowering the simulated aquatic product 7 onto the conveyor belt 1 for self-check, the electric control spray head 33 can be started. The electric control spray head 33 can convey the water in the water tank 31 through the water pipe 32 and spray it downward onto the simulated aquatic product 7 to simulate the wet state of the aquatic product, so as to make the self-check process of the metal detector 3 closer to the real situation.

[0041] Preferably, it further includes a ventilation fan 34. The ventilation fans 34 are oppositely disposed on the side walls of the detection box 2, and the main control unit 18 is electrically connected to the ventilation fan 34.

[0042] After the self-check is completed, the electric control door 20 can be opened and the ventilation fan 34 can be turned on. The ventilation fan 34 can discharge the heat and moisture in the detection box 2 to the outside, restoring the normal environment in the detection box 2, so as to facilitate the conveyance of the aquatic product for metal detection.

[0043] Preferably, an inclined plate 35 is provided on the side wall of the bearing plate 6 away from the metal block 10.

[0044] When the bearing plate 6 is inclined, its inclined plate 35 will contact the surface of the conveyor belt 1, thus forming a complete inclined surface to facilitate the movement of the simulated aquatic product 7 along the bearing plate 6.

[0045] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A metal detection system for aquatic product processing, characterized in that, It includes a conveyor belt, a detection box, a metal detector and a self-check mechanism. On the opposite side walls of the detection box, there are inlets and outlets. The conveyor belt passes through the detection box through the inlets and outlets. The metal detector is arranged on the inner top surface of the detection box. The self-check mechanism includes a first hydraulic rod, a bearing plate, an aquatic product simulator, a rotating motor, a pulling rope, a metal block, a mounting plate, a first electric push rod, a moving rod, an electromagnet, a heating sheet, a humidifier, an alarm and a main control unit. The first hydraulic rod is arranged on the inner top surface of the detection box, and its output shaft is connected to the top surface of the bearing plate. The aquatic product simulator is placed on the bearing plate, and there are several through pores on its side wall. The rotating motor is arranged on the inner top surface of the detection box. The top end of the pulling rope is wound around the output shaft of the rotating motor, and its bottom end is connected to the top surface of the metal block. The mounting plate is arranged on the inner top surface of the detection box. The first electric push rod is arranged on the side wall of the mounting plate, and its output shaft is connected to one end of the moving rod. The other end of the moving rod is connected to the electromagnet. The electromagnet is located on one side of the metal block. The through pores are on the moving path of the metal block. The heating sheet and the humidifier are arranged on the inner side wall of the detection box. The alarm and the main control unit are arranged on the top surface of the detection box. The main control unit is electrically connected to the conveyor belt, the metal detector, the first hydraulic rod, the rotating motor, the metal block, the first electric push rod, the electromagnet, the heating sheet, the humidifier and the alarm respectively.

2. The metal detection system for aquatic product processing according to claim 1, wherein, It further includes an electric control door. The electric control door is arranged inside the inlets and outlets. The main control unit is electrically connected to the electric control door.

3. A metal detection system for aquatic product processing according to claim 1, wherein, The mounting plate includes a hollow plate, a lifting plate and a second electric push rod. The hollow plate is arranged on the inner top surface of the detection box, and its bottom surface is open. The top surface of the lifting plate extends into the hollow plate. The second electric push rod is arranged on the inner top surface of the hollow plate, and its output shaft is connected to the top surface of the lifting plate. The first electric push rod is arranged on the side wall of the lifting plate. The main control unit is electrically connected to the second electric push rod.

4. A metal detection system for aquatic product processing according to claim 3, characterized in that, The self-check mechanism further includes an electric sliding table. The electric sliding table is arranged on the inner top surface of the detection box. The top surface of the hollow plate is connected to the bottom surface of the moving part of the electric sliding table. The main control unit is electrically connected to the electric sliding table.

5. A metal detection system for aquatic product processing according to claim 1, characterized in that, The self-check mechanism further includes a U-shaped frame, a rotating rod, a rotating shaft and a bearing. The U-shaped frame is arranged on the top surface of the bearing plate. The bearings are arranged oppositely on the inner side walls of the U-shaped frame. The output shaft of the first hydraulic rod is connected to the top end of the rotating rod. The bottom end of the rotating rod extends into the U-shaped frame. The rotating shaft is arranged on the outer side wall of the rotating rod and is connected to the bearing.

6. The metal detection system for aquatic product processing according to claim 1, wherein The self-check mechanism further includes a second hydraulic rod and a pressing plate. The second hydraulic rod is arranged on the inner top surface of the detection box, and its output shaft is connected to the top surface of the pressing plate. The pressing plate is located above the bearing plate. The main control unit is electrically connected to the second hydraulic rod.

7. A metal detection system for aquatic product processing according to claim 6, characterized in that, The self-check mechanism further includes a water tank, a water pipe and an electric control spray head. The water tank is arranged on the top surface of the pressing plate. The electric control spray head is embedded in the bottom surface of the pressing plate. The water pipe connects the water tank and the electric control spray head. The main control unit is electrically connected to the electric control spray head.

8. A metal detection system for aquatic product processing according to claim 1, characterized in that, It further includes a ventilation fan. The ventilation fans are arranged oppositely on the side walls of the detection box. The main control unit is electrically connected to the ventilation fan.

9. The metal detection system for aquatic product processing according to claim 1, characterized in that, On the side wall of the bearing plate away from the metal block, there is an inclined plate.

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