A defective product selection device on a melon seed production line

Abstract

The present invention discloses a defective selection device on a melon seed production line, comprising a conveyor belt and an arched plate straddling the conveyor belt, an inclined slideway being provided below the discharging end of the conveyor belt, an identification and marking component being provided at the junction of the conveyor belt and the inclined slideway, for transferring the melon seeds on the conveyor belt to the inclined slideway and marking the defective melon seeds therein, the height of the gap between the arched plate and the conveyor belt being set to allow only a single melon seed to pass through, a cutting component being provided above the conveyor belt on one side of the material feeding direction of the arched plate, for pushing the melon seeds stuck together toward the arched plate and cooperating with the arched plate to separate the melon seeds stuck together, a separation component for sucking away the marked defective melon seeds and a discharge component for collecting the defective melon seeds and transferring them in a centralized manner being provided on the inclined slideway. The present invention adopts the method of defective identification-laser marking-marking identification-negative pressure suction to achieve the purpose of automatically screening out moldy melon seeds, and the screening efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of melon seeds screening, in particular to a device for selecting inferior melon seeds on a melon seed production line. Background Art

[0002] In the production process of melon seeds, it is necessary to screen the melon seeds according to their size, so as to achieve the classification of melon seeds of different qualities. This process is generally achieved through devices such as vibrating screens. While screening the melon seeds, it is also possible to screen out the sand and other impurities mixed in the melon seeds. In addition, since some melon seeds will become moldy during storage and transportation, the taste is poor and it affects the health of consumers, so the moldy melon seeds also need to be screened out.

[0003] Since melon seeds of different sizes may all be moldy, ordinary screening devices cannot effectively screen out moldy melon seeds. The current screening method for moldy melon seeds mainly relies on manual labor, which is to observe whether the melon seeds are moldy by naked eyes and pick out the moldy melon seeds to achieve the purpose of screening. In this process, workers need to keep staring at the melon seeds transmitted on the assembly line and keep their attention focused at all times, which easily fatigues the mind and eyes. In addition, the melon seeds are small in size and large in number, so the probability of moldy melon seeds being missed is very high, and the screening efficiency in actual applications is low. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the present invention provides a defective selection device on a melon seed production line, which has the advantages of automatically screening out moldy melon seeds and high screening efficiency, and solves the problems of heavy manual labor burden and low efficiency in the process of manually screening out moldy melon seeds.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A defective product sorting device on a melon seed production line comprises a conveying assembly, wherein the conveying assembly comprises a conveyor belt for conveying melon seeds in a horizontal direction, an inclined slideway for receiving melon seeds is arranged below the discharge end of the conveyor belt, and an identification marking assembly is arranged at the junction of the conveyor belt and the inclined slideway, and is used to transfer the melon seeds on the conveyor belt to the inclined slideway and mark the defective melon seeds therein;

[0009] The conveying assembly also includes an arched plate arranged across the conveyor belt, the arched plate is arranged parallel to the width direction of the conveyor belt, and the height of the gap between the bottom of the arched plate and the upper surface of the conveyor belt is set to allow only a single melon seed to pass through. A slitting assembly and a driving assembly are also arranged above the conveyor belt. The slitting assembly is arranged on one side of the material incoming direction of the arched plate. The slitting assembly is used to push the melon seeds stuck together toward the arched plate and cooperate with the arched plate to separate the melon seeds stuck together. The driving assembly is used to drive the slitting assembly to perform linear reciprocating motion along the conveyor belt.

[0010] The inclined slide is provided with a separation component and a discharge component. The separation component is used to transfer the marked inferior melon seeds to the discharge component, and the discharge component is used to collect the inferior melon seeds and transfer them collectively.

[0011] Preferably, the conveying assembly further comprises a rotating roller, a partition plate, a U-shaped frame and a partition plate;

[0012] The rotating roller is used to support and drive the conveyor belt to rotate. The partition plate is arranged above the conveyor belt and is provided with an arc portion matching the shape of the conveyor belt discharge end at one end of the conveyor belt. A plurality of the partition plates are arranged in parallel and spaced evenly in the width direction of the conveyor belt. The arch plate is arranged across all the partition plates, and the partition plate is fixedly installed at the bottom of the arch plate.

[0013] The U-shaped frame is arranged across the arc-shaped portions of all the partition plates, and the partition plate is vertically fixedly installed at the lower part of the U-shaped frame and located on the discharge direction side of the arc-shaped portion of the partition plate. The plurality of partition plates are evenly arranged in parallel in the width direction of the conveyor belt and correspond one to one with the plurality of partition plates.

[0014] Preferably, the identification mark assembly includes a turntable, a connecting shaft, a camera 1, a slide rail, a slider 1, a laser, a threaded rod 1 and a motor 1;

[0015] The number of the rotating disks is multiple and they are arranged between two adjacent partition disks, the surface of the rotating disk is in contact with the surface of the arc-shaped portion of the conveyor belt, and accommodating grooves for accommodating melon seeds are evenly spaced on the circumferential side of the rotating disk, the connecting shaft passes through the center of all the rotating disks and the partition disks and is fixedly connected to the rotating disks and rotatably connected to the partition disks, the number of the cameras 1 is multiple and they are all fixedly installed on the upper part of the U-shaped frame, the multiple cameras 1 correspond one-to-one to the multiple rotating disks, and each camera 1 is located directly above its corresponding rotating disk, and is used to identify defective melon seeds;

[0016] The slide rail is fixedly mounted on the upper portion of the U-shaped frame and is arranged parallel to the connecting shaft. The slider 1 is slidably connected to the slide rail. The laser is arranged on the slider 1 and is used to mark defective melon seeds. The threaded rod 1 is arranged to be parallel to the slide rail and is rotatably connected. The motor 1 is fixedly mounted on one end of the threaded rod 1 and is used to drive the threaded rod 1 to rotate. A threaded hole is provided on the slider 1. The slider 1 is rotatably connected to the threaded rod 1 through the threaded hole, and the slider 1 is driven to slide back and forth on the slide rail through the threaded rod 1.

[0017] Preferably, the driving assembly comprises a support frame, a rotating shaft, a rotating wheel, a connecting rod, a sliding seat, a fixing plate and a guide member;

[0018] The number of the support frames, rotating shafts, rotating wheels and connecting rods are all two and they are symmetrically arranged. The two support frames are respectively fixedly installed on both sides of the width direction of the conveyor belt, and the two rotating shafts are respectively rotatably installed on the corresponding support frames. The rotating shafts are arranged so that the rotation center lines are parallel to the width direction of the conveyor belt. The two rotating wheels are respectively vertically arranged at opposite ends of the two rotating shafts. One end of the two connecting rods is rotatably connected to the eccentric position of the corresponding rotating wheel, and the other end is rotatably connected to one end of the slide seat.

[0019] The guide member is arranged on the top of the arch plate and is provided with a vertical guide hole. The fixed plate is fixedly installed on the slitting assembly. The other end of the slide seat passes through the guide hole and is connected to the fixed plate.

[0020] Preferably, the slitting assembly comprises a sliding column 1, a square sleeve, a push plate, a sliding sheet, a spring 1, a sliding column 2, a vertical plate, a triangular sliding groove and an inclined plate;

[0021] The square sleeve is arranged parallel to the width direction of the conveyor belt, the number of the sliding column 1 is multiple and fixedly installed on the top of the square sleeve along the length direction, the sliding column 1 is slidably connected with the fixed plate, and the push plate is fixedly installed on the bottom of the square sleeve for directly contacting the melon seeds and applying external force;

[0022] The number of the spring 1, the sliding plate and the sliding column 2 are all two and they are symmetrically arranged from the inside to the outside along the length direction of the square sleeve. The sliding plate is slidingly arranged in the square sleeve. One end of the spring 1 is connected to the inner side surface of the sliding plate and the other end is connected to the inner wall of the square sleeve. One end of the sliding column 2 is connected to the outer side surface of the sliding plate and the other end passes through the square sleeve. The sliding column 2 is telescopic relative to the square sleeve through the spring 1.

[0023] There are two vertical plates and they are respectively arranged on the outside of the two sliding columns 2. The two vertical plates are arranged opposite to each other and triangular sliding grooves are symmetrically opened on the opposite sides of the two vertical plates. One end of the sliding column 2 passing through the square sleeve is slidably connected to the corresponding triangular sliding groove. There are three inclined plates and they are respectively installed in the three sliding grooves of the triangular sliding groove. The inclined plates are used to realize that the sliding column 2 can only move in one direction along the triangular sliding groove.

[0024] Preferably, it further comprises a spacing assembly, wherein the spacing assembly comprises an inverted L-shaped plate, a third sliding column, a supporting plate, a second spring and a baffle;

[0025] The number of the inverted L-shaped plates is two and they are symmetrically arranged on both sides of the width direction of the conveyor belt, the inverted L-shaped plates include a vertical plate and a horizontal plate vertically connected to the top of the vertical plate, the support plate is horizontally arranged below the horizontal plate, the bottom end of the sliding column three is fixedly mounted on the support plate and the top end vertically slides upward through the horizontal plate, the spring two is sleeved on the outside of the sliding column three and the two ends are respectively fixedly connected to the upper surface of the support plate and the lower surface of the horizontal plate, and the spring two drives the support plate to move upward relative to the horizontal plate;

[0026] The baffle is arranged parallel to the width direction of the conveyor belt and its two ends are fixedly connected to the support plates on both sides respectively. A plurality of evenly spaced slots are arranged at the bottom of the baffle, and the slots correspond to a plurality of partition plates one by one. A trapezoidal pressure block is arranged at the bottom of the slide seat, and the trapezoidal pressure block pushes the baffle downward to engage with the partition plates through the slide seat making a linear reciprocating motion along the conveyor belt.

[0027] Preferably, it further comprises a transmission assembly, wherein the transmission assembly comprises a first pulley, a second pulley, a third pulley, a transmission belt and a second motor;

[0028] The number of pulley 1, pulley 2, pulley 3 and transmission belt are all two and they are symmetrically arranged on both sides of the width direction of the conveyor belt. The two pulleys 1 are arranged at both ends of the roller, the two pulleys 2 are arranged at both ends of the connecting shaft, and the two pulleys 3 are respectively arranged at the opposite ends of the two rotating shafts. The transmission belt is wound around pulley 1, pulley 2 and pulley 3 located on the same side, and motor 2 is used to drive the roller or pulley 1 to rotate.

[0029] Preferably, the separation assembly comprises a guide groove, a second slide block, a suction pipe, a discharge pipe, a mounting seat and a second camera;

[0030] The guide groove is arranged across the inclined slide and parallel to the width direction of the inclined slide. The second slider is slidably arranged in the guide groove. The second camera is fixedly connected to the second slider through a mounting seat. The second camera is arranged toward the surface of the inclined slide and is used to identify the marked defective melon seeds. One end of the suction tube is fixedly installed on the second slider and its opening faces the surface of the inclined slide and is used to suck the marked defective melon seeds. The opening is located on the side of the material removal direction of the second camera. The other end of the suction tube is connected to the discharge pipe and the negative pressure generating device. A partition net is arranged between the air inlet of the negative pressure generating device and the feeding port of the discharge pipe.

[0031] Preferably, the separation component also includes a limit plate, which is arranged on the slider 2 and located on the side of the camera 2 and the suction tube in the material removal direction, and the limit plate is arranged so that the bottom is in contact with the inclined slide surface.

[0032] Preferably, the discharge assembly comprises a storage box, a discharge hopper, a guide rod, a second threaded rod, a third motor, a U-shaped plate, a support seat, a cylinder and a sealing plate;

[0033] The discharge hopper is arranged at both ends of the storage box in the length direction, the guide rod and the second threaded rod are both arranged in the storage box and arranged in parallel along the length direction of the storage box, the third motor is installed at one end of the second threaded rod, the U-shaped plate opens upward and is slidably arranged in the storage box, the U-shaped plate is provided with a guide hole and a threaded hole, the U-shaped plate is slidably connected to the guide rod through the guide hole, and is threadedly connected to the second threaded rod through the threaded hole;

[0034] The support seat is arranged on the top of the U-shaped plate, and a drop hole is opened at a position on the support seat corresponding to the opening of the U-shaped plate. The discharge port of the discharge pipe is arranged directly above the drop hole and a horizontally movable sealing plate is provided between the two. The cylinder is fixedly installed on the support seat and the power output shaft is connected to the sealing plate. The sealing plate is driven by the cylinder to reciprocate in the horizontal direction to realize the closed discharge pipe to suck the melon seeds and connect the discharge pipe to drop the material.

[0035] (III) Beneficial effects

[0036] Compared with the prior art, the present invention has at least the following beneficial effects:

[0037] 1. The present invention separates the melon seeds on the conveyor belt by arranging one-to-one corresponding partition plates and partition plates, so that the melon seeds can fall into the receiving grooves on the turntable one by one, and then cooperates with the linkage of camera 1 and motor 1, camera 2 and motor 3, and the linkage of the cylinder to realize the process of defective product identification - laser marking - mark identification - negative pressure suction to screen out moldy melon seeds. The whole process does not require manual operation, and the screening efficiency and accuracy are high.

[0038] 2. The present invention provides a driving device linked to the roller and a cutting assembly linked to the driving device, so that the push plate continuously pushes the melon seeds stuck together to the arch plate and cooperates with the two ends of the arch plate to separate the melon seeds stuck together, ensuring that the melon seeds that subsequently fall into the rotating disk receiving groove are all single, so as to ensure the stability of the subsequent camera's recognition of whether a single melon seed is moldy.

[0039] 3. The present invention arranges spring 1, slide column 2, vertical plate, triangular slide groove and inclined plate in the cutting assembly so that slide column 2 can only move in one direction along the triangular slide groove, ensuring that the push plate can push the stuck melon seeds to the arch plate and will not affect the normal transportation of the melon seeds on the conveyor belt when returning, thereby ensuring the normal operation of the device of the present invention.

[0040] 4. The present invention is provided with a horizontally movable sealing plate, which closes the discharge port of the discharge pipe by moving the sealing plate to form a negative pressure environment in the suction pipe and the discharge pipe, and the melon seeds aimed at the other end of the discharge pipe are sucked into the suction pipe and blocked by the partition net to ensure that they are not sucked into the negative pressure generating device. The drop hole and the discharge port of the discharge pipe are connected by the movable sealing plate, so that the air pressure in the suction pipe and the discharge pipe is restored to normal, and the melon seeds sucked into the discharge pipe fall and enter the storage box through the drop hole, thereby realizing the precise suction and automatic collection of moldy melon seeds and avoiding accidental injury to normal melon seeds during the movement of the suction pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic diagram of the three-dimensional structure of a defective product sorting device on a melon seed production line proposed by the present invention;

[0042] Figure 2 for Figure 1 A schematic diagram of the structural disassembly of the middle conveying assembly 100;

[0043] Figure 3 for Figure 1 A schematic diagram of the structural disassembly of the identification mark component 300;

[0044] Figure 4 for Figure 1 A schematic diagram of the structural disassembly of the middle drive assembly 400 and the transmission assembly 700;

[0045] Figure 5 for Figure 1 A schematic diagram of the structural disassembly of the middle cutting assembly 500;

[0046] Figure 6 for Figure 5 An enlarged structural diagram of the neutral plate 507;

[0047] Figure 7 for Figure 1 A schematic diagram of the structural disassembly of the middle partition assembly 600;

[0048] Figure 8 for Figure 1 A schematic diagram of the three-dimensional structure of the separation component 800;

[0049] Fig. 9 for Figure 1 Schematic diagram of the structural disassembly of the middle discharge assembly 900.

[0050] In the figure: 100, conveying assembly; 200, inclined slide; 300, identification mark assembly; 400, driving assembly; 500, slitting assembly; 600, spacing assembly; 700, transmission assembly; 800, separation assembly; 900, discharge assembly; 101, roller; 102, conveyor belt; 103, side plate; 104, partition plate; 105, arch plate; 106, U-shaped frame; 107, partition plate; 301 , turntable; 302, receiving slot; 303, connecting shaft; 304, camera 1; 305, slide rail; 306, slider 1; 307, laser; 308, threaded rod 1; 309, motor 1; 401, support frame; 402, rotating shaft; 403, rotating wheel; 404, connecting rod; 405, sliding seat; 406, fixing plate; 407, guide; 501, sliding column 1; 502, square sleeve; 503, push plate; 504, slide; 505, spring 1; 506, slide column 2; 507, vertical plate; 508, triangular slide; 509, inclined plate; 601, inverted L-shaped plate; 602, slide column 3; 603, support plate; 604, spring 2; 605, baffle; 606, trapezoidal pressure block; 701, pulley 1; 702, pulley 2; 703, pulley 3; 704, transmission belt; 705, motor 2; 8 01. Guide groove; 802. Slider 2; 803. Suction pipe; 804. Discharge pipe; 805. Mounting seat; 806. Camera 2; 807. Limit plate; 808. Suction pump; 809. Partition net; 901. Storage box; 902. Discharge hopper; 903. Guide rod; 904. Threaded rod 2; 905. Motor 3; 906. U-shaped plate; 907. Support seat; 908. Cylinder; 909. Sealing plate. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] See also Figure 1A defective product sorting device on a melon seed production line includes a conveying component 100, an inclined slide 200, an identification mark component 300, a driving component 400, a slitting component 500, a spacing component 600, a transmission component 700, a separation component 800 and a discharge component 900.

[0053] See also Figure 2 The conveying assembly 100 includes a conveyor belt 102 for conveying melon seeds in a horizontal direction and an arched plate 105 spanning above the conveyor belt 102. The arched plate 105 is arranged parallel to the width direction of the conveyor belt 102, and the height of the gap between the bottom of the arched plate 105 and the upper surface of the conveyor belt 102 is set to allow only a single melon seed to pass through, so as to prevent melon seeds from sticking together.

[0054] The driving component 400, the cutting component 500 and the spacing component 600 are all arranged above the conveyor belt 102. The cutting component 500 is arranged on the side of the incoming direction of the arch plate 105. The cutting component 500 is used to push the melon seeds that are stuck together toward the arch plate 105 and cooperate with the two ends of the arch plate 105 to apply force to separate the melon seeds that are stuck together. The driving component 400 is arranged on the side of the removing direction of the arch plate 105, and is used to drive the cutting component 500 to make a linear reciprocating motion along the conveyor belt 102. The spacing component 600 is arranged between the arch plate 105 and the driving cutting component 500, and is used to intermittently block a single melon seed passing through the arch plate 105 to realize batch conveying of melon seeds.

[0055] The inclined slide 200 is arranged below the discharge end of the conveyor belt 102 and is used to receive the melon seeds. The identification mark component 300 is arranged at the connection position between the conveyor belt 102 and the inclined slide 200, and is used to transfer the melon seeds on the conveyor belt 102 to the inclined slide 200 and mark the defective melon seeds therein.

[0056] The transmission assembly 700 is arranged between the conveyor belt 102, the identification mark assembly 300 and the driving assembly 400, and is used to realize the linkage of the three. The separation assembly 800 and the discharge assembly 900 are both arranged above the inclined slide 200. The separation assembly 800 is used to transfer the marked defective melon seeds to the discharge assembly 900, and the discharge assembly 900 is used to collect the defective melon seeds and transfer them in a centralized manner.

[0057] The conveyor assembly 100 further includes a roller 101, a side plate 103, a partition plate 104, a U-shaped frame 106 and a partition plate 107. The roller 101 is used to support and drive the conveyor belt 102 to rotate. The side plates 103 are two in number and are symmetrically arranged on both sides of the width direction of the conveyor belt 102. The side plates 103 are arranged along the length direction of the conveyor belt 102 and are used to close the internal space surrounded by the conveyor belt 102 and the rollers. The partition plate 104 is arranged above the conveyor belt 102 and is used to separate the melon seeds. The bottom of the partition plate 104 is arranged to fit the upper surface of the conveyor belt 102 but leave a sliding gap to avoid affecting the conveyor belt 102. The separator 104 is located at one end of the conveyor belt 102 and is provided with an arc portion matching the shape of the conveyor belt 102. Multiple separators 104 are evenly spaced and arranged in parallel in the width direction of the conveyor belt 102. The arched plate 105 is arranged above all the separators 104. Both ends of the arched plate 105 are fixedly mounted on the two side plates 103 on both sides. All separators 104 are fixedly mounted at the bottom of the arched plate 105, and the separators 104 are supported by the arched plate 105. An inclined surface is provided on one side of the arched plate 105 in the direction of incoming materials. When the melon seeds move toward the arched plate 105 together with the conveyor belt 102, the melon seeds that stick together will be blocked by the arched plate.

[0058] The U-shaped frame 106 is arranged across the arc-shaped portions of all the partition plates 104, and the two ends of the U-shaped frame 106 are fixedly mounted on the two side plates 103 on both sides. The partition plate 107 is vertically fixedly mounted at the lower part of the U-shaped frame 106 and is located on the discharge direction side of the arc-shaped portion of the partition plate 104. The plurality of partition plates 107 are evenly spaced and arranged in parallel in the width direction of the conveyor belt 102 and correspond one to one to the plurality of partition plates 104.

[0059] See also Figure 3 The identification mark assembly 300 includes a turntable 301, a connecting shaft 303, a camera 1 304, a slide rail 305, a slider 1 306, a laser 307, a threaded rod 1 308 and a motor 1 309.

[0060] There are multiple turntables 301 and they are arranged between two adjacent partition plates 107. The surface of the turntable 301 fits with the surface of the arc portion of the conveyor belt 102. Accommodating grooves 302 for accommodating melon seeds are evenly spaced on the circumferential side of the turntable 301. The connecting shaft 303 passes through the center of all the turntables 301 and the partition plates 107 and is fixedly connected to the turntable 301 and rotatably connected to the partition plates 107. There are multiple cameras 304 and they are all fixedly installed on the upper part of the U-shaped frame 106. The multiple cameras 304 correspond one-to-one to the multiple turntables 301. Each camera 304 is located directly above its corresponding turntable 301, and is used to identify defective melon seeds.

[0061] In order to ensure the recognition stability of the camera 1 304, each receiving slot 302 needs to accommodate only a single melon seed. In addition to setting a cutting component in the incoming direction to separate the melon seeds that stick together, the structural design of the U-shaped frame 106 can also play the role of temporarily storing some melon seeds by enclosing the discharge end of the partition plate 104. As the turntable 301 rotates, the melon seeds accumulated near the U-shaped frame 106 enter the receiving slot 302 one by one.

[0062] The slide rail 305 is fixedly mounted on the upper portion of the U-shaped frame 106 and is arranged parallel to the connecting shaft 303. The slider 306 is slidably connected to the slide rail 305. The laser 307 is arranged on the slider 306 for marking defective melon seeds. The threaded rod 308 is arranged parallel to and rotatably connected to the slide rail 305. The motor 309 is fixedly mounted on one end of the threaded rod 308 and is used to drive the threaded rod 308 to rotate. A threaded hole is provided on the slider 306. The slider 306 is rotatably connected to the threaded rod 308 through the threaded hole, and the slider 306 is driven to slide back and forth on the slide rail 305 through the threaded rod 308.

[0063] See also Figure 4 The driving assembly 400 includes a support frame 401, a rotating shaft 402, a rotating wheel 403, a connecting rod 404, a sliding seat 405, a fixing plate 406 and a guide member 407.

[0064] The number of the support frame 401, the rotating shaft 402, the rotating wheel 403 and the connecting rod 404 are all two and they are symmetrically arranged in the width direction of the conveyor belt 102. The two support frames 401 are respectively fixedly mounted on the two side plates 103, and the two rotating shafts 402 are respectively rotatably mounted on the corresponding support frames 401. The rotating shaft 402 is arranged so that the rotation center line is parallel to the width direction of the conveyor belt 102. The two rotating wheels 403 are respectively vertically arranged at the opposite ends of the two rotating shafts 402. One ends of the two connecting rods 404 are rotatably connected to the same eccentric position of the corresponding rotating wheel 403, and the other ends are rotatably connected to one end of the slide seat 405.

[0065] The guide member 407 is arranged on the top of the arch plate 105 and is provided with a vertical guide hole. The fixed plate 406 is fixedly installed on the slitting assembly 500. The other end of the slide 405 passes through the guide hole and is connected to the fixed plate 406. The assembly of the slide 405 and the fixed plate 406 is T-shaped, and is driven by the connecting rod 404 to slide back and forth relative to the guide member 407. The guide member 407 is cooperatively arranged as an up and down movable structure.

[0066] The transmission assembly 700 includes a pulley 1 701 , a pulley 2 702 , a pulley 3 703 , a transmission belt 704 and a motor 2 705 .

[0067] The number of the pulley 1 701, the pulley 2 702, the pulley 3 703 and the transmission belt 704 are all two and are symmetrically arranged on both sides of the width direction of the conveyor belt 102. The two pulleys 1 701 are arranged at both ends of the roller 101, the two pulleys 2 702 are arranged at both ends of the connecting shaft 303, and the two pulleys 3 703 are respectively arranged at the opposite ends of the two rotating shafts 402. The transmission belt 704 is wound around the pulley 1 701, the pulley 2 702 and the pulley 3 703 located on the same side, and the motor 2 705 is fixedly installed at the center of one of the pulleys 1 701 or the end of the roller 101.

[0068] See also Figure 5 The slitting assembly 500 includes a slide column 1 501, a square sleeve 502, a push plate 503, a slide plate 504, a spring 1 505, a slide column 2 506, a vertical plate 507, a triangular slide groove 508 and an inclined plate 509.

[0069] The square sleeve 502 is arranged parallel to the width direction of the conveyor belt 102, the number of the sliding column 1 501 is multiple and vertically fixedly installed on the top of the square sleeve 502 along the length direction, the sliding column 1 501 is slidably connected to the fixed plate 406, and the push plate 503 is fixedly installed at the bottom of the square sleeve 502 for directly contacting the melon seeds and applying external force. The bottom height of the push plate 503 is set to be almost in contact with the top of the partition plate 104 but with a sliding gap.

[0070] The number of the spring 1 505, the sliding plate 504 and the sliding column 2 506 are all two and are symmetrically arranged from the inside to the outside along the length direction of the square sleeve 502. The sliding plate 504 is slidingly arranged in the square sleeve 502. One end of the spring 1 505 is connected to the inner side of the sliding plate 504 and the other end is connected to the inner wall of the square sleeve 502. One end of the sliding column 2 506 is connected to the outer side of the sliding plate 504 and the other end passes through the square sleeve 502. The sliding column 2 506 is extended and retracted relative to the square sleeve 502 by the spring 1 505. The number of the vertical plates 507 is two and they are symmetrically arranged on the outside of the two sliding columns 2 506. The two vertical plates 507 are fixedly mounted on the two side plates 103 respectively.

[0071] See also Figure 6 The two vertical plates 507 are arranged opposite to each other and triangular slide grooves 508 are symmetrically opened on the opposite sides of the two. One end of the sliding column 506 passing through the square sleeve 502 is slidably connected to the corresponding triangular slide groove 508. The number of the inclined plates 509 is three and they are respectively installed in the three slide grooves of the triangular slide groove 508. The three inclined plates 509 are connected end to end to form a height difference at the three corners of the triangular slide groove 508. The slope of the inclined plate 509 is designed to realize that the sliding column 506 can only move in one direction along the triangular slide groove 508.

[0072] Specifically, when the fixed plate 406 moves in the discharge direction, it drives the assembly consisting of the slide column 1 501, the square sleeve 502 and the push plate 503 to move in the discharge direction. At this time, the push plate 503 slides in the discharge direction against the top of the partition plate 104, pushing the melon seeds stuck together to the arch plate 105, and the slide column 2 506 slides in the discharge direction in the horizontal slide groove at the bottom of the triangular slide groove 508. During the sliding process, the slide column 2 506 is squeezed by the gradually raised inclined plate 509, and will retract into the square sleeve 502 and squeeze the spring 1 505 until the slide column 2 506 slides to the corner at the end and enters the next slide groove. Due to the height difference, the slide column 2 506 extends out of the square sleeve 502 under the action of the spring 1 505. When the second slide post 506 passes the highest corner and starts to move along another inclined slide of the triangular slide 508, the second slide post 506 drives the push plate 503 to move in the opposite direction of the discharge, and also drives the push plate 503 to move downward, until the second slide post 506 returns to the original starting point of the horizontal slide, and the bottom of the push plate 503 is in contact with the top of the partition plate 104. By repeating the above actions, it can be achieved that: the push plate 503 always adheres to the partition plate 104 and pushes the melon seeds stuck together when approaching the arch plate 105, and the push plate 503 first rises and then falls to pass over the melon seeds stuck together on the return path when moving away from the arch plate 105.

[0073] See also Figure 7 The spacing assembly 600 includes an inverted L-shaped plate 601, a sliding column 3 602, a support plate 603, a spring 2 604 and a baffle 605.

[0074] There are two inverted L-shaped plates 601 and they are symmetrically arranged on both sides of the width direction of the conveyor belt 102. The inverted L-shaped plates 601 include a vertical plate and a horizontal plate vertically connected to the top of the vertical plate. The two vertical plates are fixedly mounted on the two side plates 103, and the two horizontal plates are arranged on the opposite sides of the two vertical plates. The support plate 603 is horizontally arranged under each horizontal plate. The bottom end of the sliding column three 602 is fixedly mounted on the support plate 603 and the top end slides vertically upward through the horizontal plate. The spring two 604 is sleeved on the outside of the sliding column three 602 and the two ends are respectively fixedly connected to the upper surface of the support plate 603 and the lower surface of the horizontal plate. The spring two 604 drives the support plate 603 to move upward relative to the horizontal plate.

[0075] The baffle 605 is arranged parallel to the width direction of the conveyor belt 102 and its two ends are fixedly connected to the support plates 603 on both sides respectively. A plurality of slots with evenly spaced intervals are arranged at the bottom of the baffle 605, and the slots correspond one-to-one to a plurality of partition plates 104. A trapezoidal pressing block 606 is arranged at the bottom of the slide 405, and the slide 405 makes a linear reciprocating motion along the conveyor belt 102 so that the trapezoidal pressing block 606 pushes the baffle 605 downward to engage with the partition plate 104.

[0076] Specifically, when the slide 405 moves in the direction of discharging, the slide 405 pushes the baffle 605 downward through the trapezoidal pressing block 606, and the support plate 603 drives the spring 2 604 to stretch until the slot at the bottom of the baffle 605 is engaged with the partition plate 104 one by one. At this time, the bottom of the baffle 605 is in contact with the surface of the conveyor belt 102 (leaving a sliding gap), and the single melon seeds passing through the arch plate 105 are blocked by the baffle 605 in a short time. When the slide 405 moves in the opposite direction of discharging, the slide 405 and the trapezoidal pressing block 606 move upward, and the baffle 605 also moves upward under the pulling force of the spring 2 604. At this time, without the obstruction of the baffle 605, the melon seeds can continue to move with the conveyor belt 102. By repeating the above actions, it can be achieved that the melon seeds between the partition plates 104 are intermittently blocked, so that the melon seeds move with the conveyor belt 102 in batches.

[0077] See also Figure 8 The separation assembly 800 includes a guide groove 801 , a second slider 802 , a suction pipe 803 , a discharge pipe 804 , a mounting seat 805 , a second camera 806 and a limiting plate 807 .

[0078] The guide groove 801 is arranged above the inclined slide 200 and parallel to the width direction of the inclined slide 200. The second slider 802 is slidably arranged in the guide groove 801. The second camera 806 is fixedly connected to the second slider 802 through the mounting seat 805. The second camera 806 is arranged toward the surface of the inclined slide 200 for identifying the marked inferior melon seeds. One end of the suction pipe 803 is fixedly installed on the second slider 802, specifically, the second slider 802 is penetrated and the opening is facing the inclined slide. The surface of 200 is set to suck the marked defective melon seeds, and the opening of this end is located on the side of the material removal direction of the camera 2 806. The other end of the suction pipe 803 is connected to the discharge pipe 804 and the negative pressure generating device. A partition net 809 is arranged between the air inlet of the negative pressure generating device and the feeding port of the discharge pipe 804. The limit plate 807 is arranged on the slider 2 802 and is located on the side of the material removal direction of the camera 2 806 and the suction pipe 803. The limit plate 807 is arranged so that the bottom is in contact with the surface of the inclined slide 200.

[0079] In this embodiment, the negative pressure generating device is a suction pump 808 .

[0080] See also Fig. 9 The discharging assembly 900 includes a storage box 901, a discharging hopper 902, a guide rod 903, a second threaded rod 904, a third motor 905, a U-shaped plate 906, a support seat 907, a cylinder 908 and a sealing plate 909.

[0081] The material storage box 901 is arranged above the bottom area of ​​the inclined slide 200 and is arranged parallel to the width direction of the inclined slide 200. The number of the discharge hoppers 902 is two and they are symmetrically arranged at both ends of the length direction of the material storage box 901. The guide rod 903 and the second threaded rod 904 are both arranged in the material storage box 901 and arranged parallel to the length direction of the material storage box 901. The motor three 905 is installed at one end of the second threaded rod 904 and is used to drive the second threaded rod 904 to rotate. The U-shaped plate 906 opens upward and is slidably arranged in the material storage box 901. The U-shaped plate 906 is provided with a guide hole and a threaded hole. The U-shaped plate 906 is slidably connected to the guide rod 903 through the guide hole, and is rotatably connected to the second threaded rod 904 through the threaded hole.

[0082] The support seat 907 is arranged on the top of the U-shaped plate 906, and a feeding hole is provided on the support seat 907 at a position corresponding to the opening of the U-shaped plate 906. The discharge port of the discharge pipe 804 is arranged just above the feeding hole. The extracted melon seeds fall on both sides of the U-shaped plate 906 through the feeding hole, and are pushed and concentrated by the U-shaped plate 906 and discharged from the discharge hoppers 902 at both ends. A sealing plate 909 that can move horizontally is provided between the discharge port and the feeding hole of the discharge pipe 804. The cylinder 908 is fixedly installed on the support seat 907 and the power output shaft is connected to the sealing plate 909. The sealing plate 909 is driven by the cylinder 908 to reciprocate in the horizontal direction to close the discharge pipe 804 to suck the melon seeds and connect the discharge pipe 804 to drop the material. The suction pump 808 is also fixedly installed on the support seat 907.

[0083] Camera 1 304 and camera 2 806 are electrically connected to the signal input terminal of the controller, and laser 307, motor 1 309, suction pump 808, motor 3 905 and cylinder 908 are electrically connected to the signal output terminal of the controller.

[0084] The working process of the defective product selection device on the melon seed production line of this embodiment is as follows:

[0085] Motor 2 705 drives roller 101 or pulley 1 701 to rotate, and cooperates with pulley 2 702, pulley 3 703 and transmission belt 704 to realize the same direction rotation of roller 101, conveyor belt 102, connecting shaft 303 and rotating shaft 402. The melon seeds to be screened move with the conveyor belt 102 and are separated by the partition plate 104.

[0086] The rotating shaft 402 cooperates with the eccentric structure composed of the rotating wheel 403 and the connecting rod 404 to drive the sliding seat 405 and the fixed plate 406 to reciprocate along the conveyor belt 102, so that the pushing plate 503 continuously pushes the stuck melon seeds toward the arch plate 105, and the pushing plate 503 cooperates with the arch plate 105 to apply force from both sides to separate the stuck melon seeds, and the single melon seeds continue to move with the conveyor belt 102 and pass through the arch plate 105.

[0087] During the reciprocating motion, the slide 405 will cooperate with the trapezoidal pressure block 606 and the spring 2 604 to drive the baffle 605 to repeatedly descend to fit the surface of the conveyor belt 102 and rise, so that the melon seeds passing through the arch plate 105 continue to move in batches following the conveyor belt 102. When the melon seeds move to the discharge end of the conveyor belt 102, they can be temporarily stored in the U-shaped frame 106.

[0088] The connecting shaft 303 drives the turntable 301 to rotate, and the melon seeds blocked by the U-shaped frame 106 fall into the receiving groove 302 on the turntable 301 one by one, and move with the turntable 301 to the inclined slide 200; when the receiving groove 302 moves to the bottom of the corresponding camera 304, the camera 304 identifies the melon seeds in the receiving groove 302, and the camera 304 transmits the identified moldy melon seeds signal to the controller, and the controller controls the motor 309 to drive the threaded rod 308 to rotate, driving the slider 306 to slide along the slide rail 305, so that the laser 307 moves to the top of the moldy melon seeds, and the controller controls the laser 307 to start, and the moldy melon seeds are charred by the laser to complete the marking; the turntable 301 continues to rotate, and the marked melon seeds fall onto the inclined slide 200 together with other melon seeds and continue to slide downward along the inclined slide 200.

[0089] At the same time, the controller also controls the motor 3 905 to drive the threaded rod 2 904 to rotate, driving the assembly of the U-shaped plate 906 and the support seat 907 to move along the guide rod 903, and the assembly composed of the suction pump 808, the suction pipe 803 and the slider 2 802 to move synchronously along the guide groove 801, so that the slider 2 802 moves to the approximate horizontal position of the marked melon seeds on the inclined slide 200;

[0090] When the marked melon seeds slide downward, they pass near slider 2 802. Camera 2 806 recognizes them and transmits a signal to the controller. The controller controls motor 3 905 to drive threaded rod 2 904 to rotate, and fine-tunes the position of slider 2 802 to move the suction tube 803 to the top of the marked melon seeds. At this time, the controller controls cylinder 908 to extend, driving sealing plate 909 to seal the discharge port at the bottom of discharge tube 804. The controller controls suction pump 808 to start, so that the marked melon seeds are sucked into the suction tube 803 and blocked at the partition net 809. The controller then controls suction pump 808 to stop and cylinder 908 to retract. The sealing plate 909 is removed from the discharge port at the bottom of discharge tube 804, and the marked melon seeds enter the storage box 901 through the discharge tube 804 and the drop hole.

[0091] As the U-shaped plate 906 moves along the guide rod 903, it pushes the melon seeds in the storage box 901 to move toward both ends. The marked melon seeds are eventually discharged through the discharge hoppers 902 at both ends, while the unmarked normal melon seeds slide to the bottom along the inclined slide 200 and are transferred away.

[0092] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A defective product sorting device on a melon seed production line, comprising a conveying component (100), characterized in that: The conveying assembly (100) comprises a conveyor belt (102) for conveying melon seeds in a horizontal direction, an inclined slideway (200) for receiving melon seeds is provided below the discharge end of the conveyor belt (102), and an identification marking assembly (300) is provided at the junction of the conveyor belt (102) and the inclined slideway (200) for transferring melon seeds on the conveyor belt (102) to the inclined slideway (200) and marking defective melon seeds therein; The conveying assembly (100) further comprises an arched plate (105) arranged across the conveying belt (102), the arched plate (105) being arranged parallel to the width direction of the conveying belt (102), and the height of the gap between the bottom of the arched plate (105) and the upper surface of the conveying belt (102) being arranged to allow only a single melon seed to pass through, and a slitting assembly (500) and a driving assembly (400) being arranged above the conveying belt (102), the slitting assembly (500) being arranged on one side of the material incoming direction of the arched plate (105), the slitting assembly (500) being used to push melon seeds that are stuck together toward the arched plate (105) and cooperate with the arched plate (105) to separate the melon seeds that are stuck together, and the driving assembly (400) being used to drive the slitting assembly (500) to perform linear reciprocating motion along the conveying belt (102); The driving assembly (400) comprises a support frame (401), a rotating shaft (402), a rotating wheel (403), a connecting rod (404), a sliding seat (405), a fixing plate (406) and a guide member (407); The number of the support frames (401), the rotating shafts (402), the rotating wheels (403) and the connecting rods (404) are all two and are symmetrically arranged. The two support frames (401) are respectively fixedly mounted on both sides of the width direction of the conveyor belt (102). The two rotating shafts (402) are respectively rotatably mounted on the corresponding support frames (401). The rotating shafts (402) are arranged so that the rotation center lines are parallel to the width direction of the conveyor belt (102). The two rotating wheels (403) are respectively vertically arranged at opposite ends of the two rotating shafts (402). One end of the two connecting rods (404) is rotatably connected to the eccentric position of the corresponding rotating wheel (403), and the other end is rotatably connected to one end of the slide seat (405). The guide member (407) is arranged on the top of the arch plate (105) and is provided with a vertical guide hole. The fixed plate (406) is fixedly mounted on the slitting assembly (500). The other end of the slide seat (405) passes through the guide hole and is connected to the fixed plate (406). The slitting assembly (500) comprises a sliding column 1 (501), a square sleeve (502), a push plate (503), a sliding sheet (504), a spring 1 (505), a sliding column 2 (506), a vertical plate (507), a triangular sliding groove (508) and an inclined plate (509); The square sleeve (502) is arranged parallel to the width direction of the conveyor belt (102), the number of the sliding column (501) is multiple and fixedly installed on the top of the square sleeve (502) along the length direction, the sliding column (501) is slidably connected to the fixed plate (406), and the push plate (503) is fixedly installed on the bottom of the square sleeve (502) for directly contacting the melon seeds and applying external force; The number of the spring 1 (505), the sliding plate (504) and the sliding column 2 (506) are all two and they are symmetrically arranged in sequence from the inside to the outside along the length direction of the square sleeve (502); the sliding plate (504) is slidingly arranged in the square sleeve (502); one end of the spring 1 (505) is connected to the inner side surface of the sliding plate (504) and the other end is connected to the inner wall of the square sleeve (502); one end of the sliding column 2 (506) is connected to the outer side surface of the sliding plate (504) and the other end passes through the square sleeve (502); the sliding column 2 (506) is extended and retracted relative to the square sleeve (502) by the spring 1 (505); The number of the vertical plates (507) is two and they are respectively arranged on the outside of the two second sliding columns (506). The two vertical plates (507) are arranged opposite to each other and triangular sliding grooves (508) are symmetrically provided on the opposite sides of the two vertical plates. One end of the second sliding column (506) passing through the square sleeve (502) is slidably connected to the corresponding triangular sliding groove (508). The number of the inclined plates (509) is three and they are respectively installed in the three sliding grooves of the triangular sliding groove (508). The inclined plates (509) are used to realize that the second sliding column (506) can only move in one direction along the triangular sliding groove (508); The inclined slideway (200) is provided with a separation component (800) and a discharge component (900), wherein the separation component (800) is used to transfer the marked inferior melon seeds into the discharge component (900), and the discharge component (900) is used to collect the inferior melon seeds and transfer them in a centralized manner.

2. The defective product sorting device on the melon seed production line according to claim 1 is characterized by: The conveying assembly (100) further comprises a rotating roller (101), a partition plate (104), a U-shaped frame (106) and a partition plate (107); The rotating roller (101) is used to support and drive the conveyor belt (102) to rotate; the partition plate (104) is arranged above the conveyor belt (102) and is provided with an arc portion matching the shape of the conveyor belt (102) at one end located at the discharge end of the conveyor belt (102); a plurality of the partition plates (104) are arranged in parallel and spaced evenly in the width direction of the conveyor belt (102); the arch plate (105) is arranged across all the partition plates (104); and the partition plate (104) is fixedly mounted on the bottom of the arch plate (105); The U-shaped frame (106) is arranged across the arc-shaped portions of all the partition plates (104); the partition plates (107) are vertically fixedly mounted at the bottom of the U-shaped frame (106) and are located on one side of the discharge direction of the arc-shaped portions of the partition plates (104); and a plurality of the partition plates (107) are evenly spaced and arranged in parallel in the width direction of the conveyor belt (102) and correspond one to one to the plurality of partition plates (104).

3. The defective product sorting device on the melon seed production line according to claim 2 is characterized by: The identification mark assembly (300) comprises a turntable (301), a connecting shaft (303), a camera 1 (304), a slide rail (305), a slider 1 (306), a laser (307), a threaded rod 1 (308) and a motor 1 (309); There are a plurality of rotating disks (301) and they are arranged between two adjacent separating disks (107); the surface of the rotating disk (301) is in contact with the surface of the arc-shaped portion of the conveyor belt (102); accommodating grooves (302) for accommodating melon seeds are evenly spaced on the circumferential side surface of the rotating disk (301); the connecting shaft (303) passes through the center of all the rotating disks (301) and the separating disks (107) and is fixedly connected to the rotating disks (301) and rotatably connected to the separating disks (107); there are a plurality of cameras (304) and they are all fixedly mounted on the upper part of the U-shaped frame (106); the plurality of cameras (304) correspond one-to-one to the plurality of rotating disks (301); each camera (304) is located directly above its corresponding rotating disk (301) and is used to identify defective melon seeds; The slide rail (305) is fixedly mounted on the upper portion of the U-shaped frame (106) and is arranged parallel to the connecting shaft (303); the slider (306) is slidably connected to the slide rail (305); the laser (307) is arranged on the slider (306) and is used to mark defective melon seeds; the threaded rod (308) is arranged to be parallel to and rotatably connected to the slide rail (305); the motor (309) is fixedly mounted on one end of the threaded rod (308) and is used to drive the threaded rod (308) to rotate; a threaded hole is provided on the slider (306); the slider (306) is rotatably connected to the threaded rod (308) through the threaded hole, and the slider (306) is driven to slide back and forth on the slide rail (305) through the threaded rod (308).

4. The defective product sorting device on the melon seed production line according to claim 3 is characterized by: It also includes a spacing assembly (600), wherein the spacing assembly (600) includes an inverted L-shaped plate (601), a third sliding column (602), a supporting plate (603), a second spring (604), and a baffle (605); The number of the inverted L-shaped plates (601) is two and they are symmetrically arranged on both sides of the width direction of the conveyor belt (102), the inverted L-shaped plates (601) include a vertical plate and a horizontal plate vertically connected to the top of the vertical plate, the support plate (603) is horizontally arranged below the horizontal plate, the bottom end of the sliding column three (602) is fixedly mounted on the support plate (603) and the top end vertically slides upward through the horizontal plate, the spring two (604) is sleeved on the outside of the sliding column three (602) and the two ends are respectively fixedly connected to the upper surface of the support plate (603) and the lower surface of the horizontal plate, and the spring two (604) drives the support plate (603) to move upward relative to the horizontal plate; The baffle (605) is arranged parallel to the width direction of the conveyor belt (102) and its two ends are fixedly connected to the support plates (603) on both sides respectively. The bottom of the baffle (605) is provided with a plurality of slots evenly distributed at intervals, and the slots correspond to the plurality of partition plates (104) one by one. The bottom of the slide (405) is provided with a trapezoidal pressing block (606), and the slide (405) makes a linear reciprocating motion along the conveyor belt (102) so that the trapezoidal pressing block (606) pushes the baffle (605) downward to be clamped with the partition plates (104).

5. The defective product sorting device on the melon seed production line according to claim 3 is characterized by: It also includes a transmission assembly (700), wherein the transmission assembly (700) includes a first pulley (701), a second pulley (702), a third pulley (703), a transmission belt (704) and a second motor (705); The number of the pulley one (701), the pulley two (702), the pulley three (703) and the transmission belt (704) are all two and are symmetrically arranged on both sides of the width direction of the conveyor belt (102); the two pulleys one (701) are arranged at both ends of the roller (101); the two pulleys two (702) are arranged at both ends of the connecting shaft (303); the two pulleys three (703) are respectively arranged at the opposite ends of the two rotating shafts (402); the transmission belt (704) is wound around the pulley one (701), the pulley two (702) and the pulley three (703) located on the same side; the motor two (705) is used to drive the roller (101) or the pulley one (701) to rotate.

6. The defective product sorting device on the melon seed production line according to claim 3 is characterized by: The separation assembly (800) comprises a guide groove (801), a second slider (802), a suction pipe (803), a discharge pipe (804), a mounting seat (805) and a second camera (806); The guide groove (801) is arranged across the inclined slide (200) and parallel to the width direction of the inclined slide (200); the slider 2 (802) is slidably arranged in the guide groove (801); the camera 2 (806) is fixedly connected to the slider 2 (802) through the mounting seat (805); the camera 2 (806) is arranged toward the surface of the inclined slide (200) and is used to identify the marked defective melon seeds; one end of the suction pipe (803) is fixedly mounted on the slider 2 (802) and its opening is toward the surface of the inclined slide (200) and is used to suck the marked defective melon seeds; the opening is located on the side of the camera 2 (806) in the material removal direction; the other end of the suction pipe (803) is connected to the discharge pipe (804) and the negative pressure generating device; a partition net (809) is arranged between the air inlet of the negative pressure generating device and the feed inlet of the discharge pipe (804).

7. The defective product sorting device on the melon seed production line according to claim 6 is characterized by: The separation assembly (800) further comprises a limit plate (807), wherein the limit plate (807) is arranged on the second slide block (802) and is located on the side of the second camera (806) and the suction tube (803) in the material removal direction, and the limit plate (807) is arranged so that the bottom thereof is in contact with the surface of the inclined slideway (200).

8. The defective product sorting device on the melon seed production line according to claim 6 is characterized by: The material discharging assembly (900) comprises a material storage box (901), a material discharging hopper (902), a guide rod (903), a second threaded rod (904), a third motor (905), a U-shaped plate (906), a support seat (907), a cylinder (908) and a sealing plate (909); The discharge hopper (902) is arranged at both ends of the material storage box (901) in the length direction, the guide rod (903) and the second threaded rod (904) are both arranged in the material storage box (901) and arranged in parallel along the length direction of the material storage box (901), the third motor (905) is installed at one end of the second threaded rod (904) and is used to drive the second threaded rod (904) to rotate, the U-shaped plate (906) is opened upward and is slidably arranged in the material storage box (901), the U-shaped plate (906) is provided with a guide hole and a threaded hole, the U-shaped plate (906) is slidably connected to the guide rod (903) through the guide hole, and is rotatably connected to the second threaded rod (904) through the threaded hole; The support seat (907) is arranged on the top of the U-shaped plate (906), and a feeding hole is provided on the support seat (907) at a position corresponding to the opening of the U-shaped plate (906). The discharge port of the discharge pipe (804) is arranged directly above the feeding hole and a sealing plate (909) that can move horizontally is provided between the two. The cylinder (908) is fixedly installed on the support seat (907) and the power output shaft is connected to the sealing plate (909). The sealing plate (909) is driven by the cylinder (908) to reciprocate in the horizontal direction to close the discharge pipe (804) to suck the melon seeds and connect the discharge pipe (804) to drop the material.

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