CN110142224A - Pearl Grading Device - Google Patents

Abstract

The invention discloses a pearl grading device, which includes a case, a weight detection mechanism is fixedly installed on the right side of the upper end surface of the case, and a feeding mechanism is fixedly installed directly below the weight detection mechanism, and the feeding mechanism is located inside the case. The left side of the feeding mechanism is provided with a picture imaging mechanism, an air compressor pump is fixedly installed on the upper end of the fixing seat, and an industrial computer is fixedly installed on the front of the cabinet. The pearl grading device detects the weight and volume of the pearl, and calculates the density of the pearl according to the density calculation formula according to the volume of the pearl and the weight of the pearl, so as to distinguish and grade the nucleated pearl and the natural pearl, and at the same time The surface of the pearl is detected by the pearl roughness detection mechanism, and the overall automatic classification of nucleated pearls and natural pearls is realized without manual operation. At the same time, it can be classified according to the roughness of the pearls, making the classification of pearls more accurate.

Description

Pearl Grading Device

technical field

The invention relates to the technical field of grading equipment, in particular to a pearl grading device.

Background technique

Pearls are the only treasures that are naturally produced without processing and have magical vitality. Because they are so precious, for a long time, no matter in Europe or China, only the royal family could enjoy pearls. And China has already begun to mine and use pearls as early as more than two thousand years ago.

The grading of pearls is mostly classified according to size, color, variety, and shape, but today's pearl grading devices cannot distinguish nucleated pearls from natural pearls, and detect the surface roughness of nucleated pearls and natural pearls , and graded according to the roughness of the pearls, it is impossible to distinguish the grades of pearls more thoroughly.

Contents of the invention

The object of the present invention is to provide a pearl grading device to solve the problem that the present pearl grading device in the above-mentioned background technology cannot distinguish nucleated pearls from natural pearls, and detect the surface roughness of nucleated pearls and natural pearls, And according to the roughness of the pearls, it is impossible to distinguish the grading of the pearls more thoroughly.

In order to achieve the above object, the present invention provides the following technical solutions: the pearl grading device includes a casing, a weight detection mechanism is fixedly installed on the right side of the upper end surface of the casing, and a feeding mechanism is fixedly installed directly below the weight detection mechanism. The feeding mechanism is located inside the chassis, and the left side of the feeding mechanism is provided with a picture imaging mechanism. The lower ends of the pearl delivery pipe and the nucleated pearl delivery pipe are provided with a pearl diameter grading pipe, the lower end of the pearl diameter grading pipe is equipped with a pearl roughness detection mechanism, and the lower position of the pearl roughness detection mechanism is fixedly equipped with a discharge mechanism , the left side of the case is fixed with a fixed base, the upper end of the fixed base is fixed with an air compressor pump, and the front of the case is fixed with an industrial computer.

Preferably, the weight detection mechanism includes a feeding tray, a high-precision weighing tray, and a primary motor. The high-precision weighing tray is located inside the lower opening of the feeding tray, and the primary motor is located outside the lower end of the feeding tray. The output shaft of the first-stage motor passes through the feeding tray and is fixedly connected to the high-precision weighing pan. The high-precision weighing pan is disc-shaped, and the diameter of the high-precision weighing pan is the same as the inner diameter of the opening at the lower end of the feeding pan.

Preferably, the feeding mechanism includes a rotary roller, a conveyor belt, and a pearl baffle, and the two ends of the rotary roller are fixedly installed on the chassis through bearing seats, the conveyor belt is located outside the rotary roller, and the pearl baffle is fixedly installed on the chassis by bolts On the inner wall of the conveyor belt, the lower end of the pearl baffle is attached to the conveyor belt, the secondary motor is fixedly installed on the outside of the chassis, and the output shaft of the secondary motor is fixedly connected to the roller.

Preferably, there are three pearl baffles in total, in a semi-surrounding distribution structure.

Preferably, the picture imaging mechanism includes an industrial high-definition camera, an LED light, a placement plate, a bottom plate, and a three-stage motor. The industrial high-definition camera and the LED light are all fixedly installed on the upper end of the inner wall of the chassis through a bracket, and the placement plate is located on the side of the industrial high-definition camera. Directly below the position, the placement tray is fixedly installed on the inner wall of the cabinet, and a base plate is movably installed at the opening of the lower end of the placement tray, and the sides of the base plate are fixedly connected with the output shaft of the three-stage motor.

Preferably, the placing tray is in the shape of a truncated cone, and a reflective film is pasted and connected to the inner wall of the placing tray, and the inner diameter of the opening at the lower end of the placing tray is the same as the diameter of the bottom plate.

Preferably, the discharge mechanism includes a pearl placement seat, a pusher plate, a connecting rod, an electric telescopic rod, and a material guide plate. The pearl placement seat is fixedly installed on the inner wall of the cabinet by bolts, and the pusher plate is located at the bottom of the pearl placement seat. In the inner position, there are two pusher plates, and the two pusher plates are fixedly connected by a connecting rod, and the outer side of any one pusher plate is fixedly connected with the inner wall of the chassis through an electric telescopic rod, and the material guide plate is placed on the pearl The openings on the front and rear sides of the seat.

Preferably, the material guide plate is in an inclined state expanding outward, and there are two material guide plates, and the upper end of the material guide plate is at the same level as the lower end inside the pearl placement seat.

Preferably, one end of the air guide tube is connected to the inside of the natural pearl delivery tube, nucleated pearl delivery tube, defective product delivery tube and pearl diameter grading tube, and the other end of the air guide tube is connected to the air outlet of the air compression pump, In addition, gas solenoid valves are installed on the air guide tubes, and the gas solenoid valves are electrically connected with the industrial computer.

Preferably, the industrial computer is also electrically connected to the primary motor, industrial high-definition camera, LED lights, tertiary motor, electric telescopic rod and air compression pump.

Compared with the prior art, the beneficial effect of the present invention is: the pearl grading device can detect the weight of the pearl through the set weight detection mechanism, generate the simulated three-dimensional figure of the pearl through the picture imaging mechanism, and generate the pearl according to the simulated three-dimensional figure. The diameter of the pearl, the volume of the pearl is calculated according to the volume calculation formula through the diameter of the pearl, and the density of the pearl is calculated according to the density calculation formula through the volume of the pearl and the weight of the pearl, so as to the nucleated pearl and Natural pearls are differentiated and graded, and the surface of the pearls is detected by the pearl roughness detection mechanism. It can be graded according to the roughness of the pearls, and the grading of nucleated pearls and natural pearls is automatically realized as a whole, without manual operation.

Description of drawings

Fig. 1 is a schematic diagram of the internal structure of the present invention;

Fig. 2 is the side view structure schematic diagram of the present invention;

Fig. 3 is a schematic diagram of the front view structure of the present invention;

Fig. 4 is the schematic diagram of enlarged structure of place A of the present invention;

Fig. 5 is a schematic diagram of the top view of the conveyor belt of the present invention;

Fig. 6 is a structural schematic diagram of the placement tray of the present invention;

Fig. 7 is a structural schematic diagram of the discharge mechanism of the present invention.

In the figure: 1, chassis; 2, weight detection mechanism; 201, feeding tray; 202, high-precision weighing tray; 203, first-level motor; 3, feeding mechanism; 301, rotating roller; 302, conveyor belt; Pearl baffle; 304, secondary motor; 4, picture imaging mechanism; 401, industrial high-definition camera; 402, LED light; 403, placement plate; 404, bottom plate; 405, three-stage motor; , Nucleated pearl conveying pipe; 7. Unqualified product conveying pipe; 8. Pearl diameter grading pipe; 9. Pearl roughness detection mechanism; 10. Discharging mechanism; 1001. Pearl placement seat; Connecting rod; 1004, electric telescopic rod; 1005, material guide plate; 11, fixed seat; 12, air compression pump; 13, industrial computer.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-7, the present invention provides a technical solution: a pearl grading device, including a chassis 1, a weight detection mechanism 2, a feeding tray 201, a high-precision weighing tray 202, a primary motor 203, a feeding mechanism 3, and a rotating roller 301 , conveyor belt 302, pearl baffle 303, picture imaging mechanism 4, industrial high-definition camera 401, LED light 402, placement plate 403, bottom plate 404, three-stage motor 405, natural pearl delivery tube 5, nuclear pearl delivery tube 6, no Qualified product conveying pipe 7, pearl diameter grading pipe 8, pearl roughness detection mechanism 9, discharge mechanism 10, pearl placing seat 1001, pushing plate 1002, connecting rod 1003, electric telescopic rod 1004, material guide plate 1005, fixing seat 11. Air compression pump 12, industrial computer 13, a weight detection mechanism 2 is fixedly installed on the right side of the upper end surface of the chassis 1, and a feeding mechanism 3 is fixedly installed directly below the weight detection mechanism 2, and the feeding mechanism 3 is located inside the chassis 1. The left side of the mechanism 3 is provided with a picture imaging mechanism 4, and the lower end of the picture imaging mechanism 4 is fixedly connected with a natural pearl delivery tube 5, a nucleated pearl delivery tube 6 and a defective product delivery tube 7, a natural pearl delivery tube 5 and a nuclear pearl delivery tube. The lower end of the conveying pipe 6 is provided with a pearl diameter grading pipe 8, and the lower end of the pearl diameter grading pipe 8 is equipped with a pearl roughness detection mechanism 9, and a discharge mechanism 10 is fixedly installed below the pearl roughness detection mechanism 9, and the left side of the cabinet 1 Side position is fixedly installed with fixed base 11, and the upper end of fixed base 11 is fixedly equipped with air compression pump 12, and the front of cabinet 1 is fixedly equipped with industrial computer 13.

Further, the weight detection mechanism 2 includes a feeding tray 201, a high-precision weighing pan 202, and a primary motor 203. The high-precision weighing pan 202 is located inside the lower opening of the feeding tray 201, and the primary motor 203 is located at the bottom of the feeding tray 201. Outside the lower end of the disc 201, the output shaft of the primary motor 203 passes through the feed disc 201 and is fixedly connected to the high-precision weighing pan 202. The high-precision weighing pan 202 is disc-shaped, and the diameter of the high-precision weighing pan 202 is the same as The inner diameters of the openings at the lower ends of the feeding trays 201 are the same.

Further, the feeding mechanism 3 includes a rotary roller 301, a conveyor belt 302, and a pearl baffle 303, and the two ends of the rotary roller 301 are fixedly installed on the chassis 1 through a bearing seat, the conveyor belt 302 is located on the outside of the rotary roller 301, and the pearl baffle 303 is fixedly installed on the inner wall of the cabinet 1 by bolts, and the lower end of the pearl baffle 303 is attached to the conveyor belt 302, and the secondary motor 304 is fixedly installed on the outside of the cabinet 1, and the output shaft of the secondary motor 304 is connected to the roller 301 fixed connection.

Further, there are three pearl baffles 303 in total, in a semi-surrounding distribution structure.

Further, the picture imaging mechanism 4 includes an industrial high-definition camera 401, an LED lamp 402, a placement tray 403, a bottom plate 404, and a three-stage motor 405. The industrial high-definition camera 401 and the LED lamp 402 are all fixedly installed on the upper end of the inner wall of the cabinet 1 through a bracket. The placement tray 403 is located directly below the industrial high-definition camera 401, and the placement tray 403 is fixedly installed on the inner wall of the cabinet 1. The bottom opening of the placement tray 403 is movably installed with a bottom plate 404, and the side of the bottom plate 404 is connected to the output of the three-stage motor 405. The shaft is fixedly connected.

Further, the placement tray 403 is in the shape of a circular truncated cone, and a reflective film is pasted and connected to the inner wall of the placement tray 403 , and the inner diameter of the lower opening of the placement tray 403 is the same as that of the bottom plate 404 .

Further, the discharge mechanism 10 includes a pearl placement seat 1001, a pusher plate 1002, a connecting rod 1003, an electric telescopic rod 1004, and a material guide plate 1005. The pearl placement seat 1001 is fixedly installed on the inner wall of the cabinet 1 by bolts, and the pusher The plate 1002 is located at the inner side of the pearl placement seat 1001. There are two pusher plates 1002, and the two pusher plates 1002 are fixedly connected by a connecting rod 1003, and the outer side of any one pusher plate 1002 is connected by an electric telescopic rod 1004. It is fixedly connected with the inner wall of the cabinet 1, and the material guide plate 1005 is located at the openings on the front and rear sides of the pearl placement seat 1001.

Further, the material guide plate 1005 is in an inclined state expanding outward, and there are two material guide plates 1005, and the upper end of the material guide plate 1005 is at the same level as the lower end inside the pearl placement seat 1001.

Further, the natural pearl delivery pipe 5, the nuclear pearl delivery pipe 6, the defective product delivery pipe 7 and the pearl diameter grading pipe 8 are all connected to one end of the air guide tube, and the other end of the air guide tube is connected to the air compressor 12. The gas outlet and the gas guide pipe are all equipped with a gas solenoid valve, and the gas solenoid valve is electrically connected with the industrial computer 13 simultaneously.

Further, the industrial computer 13 is also electrically connected with the primary motor 203, the industrial high-definition camera 401, the LED light 402, the tertiary motor 405, the electric telescopic rod 1004 and the air compression pump 12

Working principle: First, store the information of various types of pearls in the industrial computer 13 as a reference standard, then select the types of pearls to be classified from the industrial computer 13, and then put the pearls into the feeding tray 201, and the pearls are in the Self-gravity falls on the high-precision weighing pan 202, and the high-precision weighing pan 202 detects the weight of the pearl. After the detection is completed, the industrial computer 13 produces an information table of the pearl, and stores the weight information of the pearl. Then the first-stage motor 203 drives the high-precision weighing pan 202 to rotate 180°, and the pearls fall to the upper end of the conveyor belt 302, and the pearls are limited by the pearl baffle 303 to prevent the pearls from falling outside the conveyor belt 302. The belt 302 is conveyed to the placement tray 403, illuminated by the LED lamp 402, the industrial high-definition camera 401 takes pictures of the pearl, and generates a simulated three-dimensional graphic through the industrial computer 13, and calculates the diameter of the pearl through the simulated three-dimensional graphic, and at the same time passes The diameter of the pearl, according to the volume calculation formula: V=(4/3)πr³, calculate the volume V of the pearl, and combine the weight of the pearl, according to the density calculation formula: ρ=m/V, calculate the volume of the pearl to be classified Density, when the density of graded pearls is within the threshold range of natural pearl density, the pearls to be graded will fall into the natural pearl grading box, and the grading of natural pearls and nucleated pearls is completed. When the density of pearls to be graded is within the threshold range of the density of nucleated pearls When the pearls to be graded fall into the nucleated pearl grading frame, and are not in the threshold value of the nucleated pearl density and the threshold interval of the natural pearl density, the pearls are transported to the outside of the cabinet 1 through the unqualified product delivery pipe 7. During the transmission process , the air compression pump 12 produces high-pressure gas, and the gas solenoid valve on the air guide pipe inside the natural pearl delivery pipe 5 and the nuclear pearl delivery pipe 6 opens simultaneously, and the gas is transmitted to the natural pearl delivery pipe 5 and the nuclear pearl delivery pipe 6 insides, It is enough to squeeze the pearls into the unqualified product delivery pipe 7. When the qualified pearls fall into the natural pearl delivery pipe 5 and the nucleated pearl delivery pipe 6, the pearl roughness detection mechanism 9 detects the surface of the pearl. The degree detection mechanism 9 is based on the "principle of light section method", which is specifically operated by an optical instrument double-tube microscope. By measuring the surface roughness height Rz of the pearl, it is graded according to the surface roughness of the pearl, and then the electric telescopic rod 1004 pushes The pearl moves to the material guide plate 1005 that matches the pearl grade, and is transported to the outside of the cabinet 1 through the material guide plate 1005, and the overall detection is completed.

Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent replacements to the technical solution of the present invention by those skilled in the art will not depart from the present invention. The essence and scope of the technical solution of the invention.

Claims (10)

1. A pearl grading device, including a chassis (1), characterized in that a weight detection mechanism (2) is fixedly installed on the right side of the upper end surface of the chassis (1), and the position directly below the weight detection mechanism (2) is fixed. A feeding mechanism (3) is installed, and the feeding mechanism (3) is located inside the chassis (1). The left side of the feeding mechanism (3) is provided with a picture imaging mechanism (4), and the picture imaging mechanism (4) The lower end is fixedly connected with a natural pearl delivery tube (5), a nucleated pearl delivery tube (6) and a non-conforming product delivery tube (7), and the lower ends of the natural pearl delivery tube (5) and the nucleated pearl delivery tube (6) A pearl diameter grading pipe (8) is provided, and a pearl roughness detection mechanism (9) is installed at the lower end of the pearl diameter grading pipe (8), and a discharge discharge device is fixedly installed below the pearl roughness detection mechanism (9). Mechanism (10), the left side of the chassis (1) is fixed with a fixed seat (11), the upper end of the fixed seat (11) is fixed with an air compressor pump (12), the chassis (1) An industrial computer (13) is fixedly installed on the front. 2. The pearl grading device according to claim 1, characterized in that: the weight detection mechanism (2) includes a feeding tray (201), a high-precision weighing tray (202), and a first-stage motor (203), The high-precision weighing pan (202) is located inside the lower opening of the feeding tray (201), and the primary motor (203) is located outside the lower end of the feeding tray (201), and the output shaft of the primary motor (203) passes through the feeding tray (201). The feeding tray (201) is fixedly connected to the high-precision weighing pan (202), the high-precision weighing pan (202) is disc-shaped, and the diameter of the high-precision weighing pan (202) is the same as the opening at the lower end of the feeding pan (201). have the same inner diameter. 3. The pearl grading device according to claim 1, characterized in that: the feeding mechanism (3) includes a rotating roller (301), a conveyor belt (302), a pearl baffle (303), a rotating roller (301) The two ends of the two ends are fixed on the chassis (1) through the bearing seat, the conveyor belt (302) is located on the outside of the roller (301), the pearl baffle (303) is fixed on the inner wall of the chassis (1) by bolts, and the pearl The lower end of the baffle (303) is attached to the conveyor belt (302), the secondary motor (304) is fixedly installed on the outside of the chassis (1), and the output shaft of the secondary motor (304) is fixed to the roller (301) connect. 4. The pearl grading device according to claim 3, characterized in that there are three pearl baffles (303) arranged in a semi-enclosed distribution structure. 5. The pearl grading device according to claim 1, characterized in that: the picture imaging mechanism (4) includes an industrial high-definition camera (401), LED lights (402), a placement plate (403), and a bottom plate (404) , the three-stage motor (405), the industrial high-definition camera (401) and the LED light (402) are all fixedly installed on the upper end of the inner wall of the chassis (1) through brackets, and the placement plate (403) is located directly below the industrial high-definition camera (401) , the placement plate (403) is fixedly installed on the inner wall of the chassis (1), and the bottom opening of the placement plate (403) is movably installed with a bottom plate (404), the side of the bottom plate (404) and the output of the three-stage motor (405) The shaft is fixedly connected. 6. The pearl grading device according to claim 5, characterized in that: the placement tray (403) is in the shape of a circular truncated cone, a reflective film is pasted and connected to the inner wall of the placement tray (403), and the lower end of the placement tray (403) is The inner diameter of the opening is the same as the diameter of the bottom plate (404). 7. The pearl grading device according to claim 1, characterized in that: the discharge mechanism (10) includes a pearl placement seat (1001), a pushing plate (1002), a connecting rod (1003), an electric telescopic rod (1004), material guide plate (1005), and the pearl placement seat (1001) are fixedly installed on the inner wall of the cabinet (1) by bolts, and the pusher plate (1002) is located at the inner side of the pearl placement seat (1001), and the pusher plate (1002) is provided with two pieces, and the two pusher plates (1002) are fixedly connected by connecting rods (1003), and the outer side of any pusher plate (1002) is connected to the chassis (1 ) is fixedly connected to the inner wall, and the material guide plate (1005) is located at the openings on the front and rear sides of the pearl placement seat (1001). 8. The pearl grading device according to claim 7, characterized in that: the material guide plate (1005) is in an outwardly expanding inclined state, and there are two material guide plates (1005), and the material guide plate (1005) ) is at the same level as the lower end of the inner side of the pearl placement seat (1001). 9. The pearl grading device according to claim 1, characterized in that: the natural pearl conveying pipe (5), the nucleated pearl conveying pipe (6), the defective product conveying pipe (7) and the pearl diameter grading pipe ( 8) One end of the air guide tube is connected inside, and the other end of the air guide tube is connected to the air outlet of the air compression pump (12), and a gas solenoid valve is installed on the air guide tube, and the gas solenoid valve and the industrial computer (13) electrical connection. 10. The pearl grading device according to claim 9, characterized in that: the industrial computer (13) is also connected with a primary motor (203), an industrial high-definition camera (401), an LED light (402), a tertiary motor ( 405), the electric telescopic rod (1004) and the air compression pump (12) are electrically connected.