A diaphragm optical detection sorting multi-grade blanking mechanism

Abstract

The application provides a diaphragm optical detection sorting multi-grade blanking mechanism, relates to the technical field of diaphragm optical sorting blanking, and comprises a carrying mechanism fixed above an optical detection table. A diaphragm feeding mechanism, an optical detection camera, a rotating disc assembly and a blanking linear motor module are further installed above the optical detection table, and the carrying mechanism is a linear motor module. A plurality of diaphragm blanking areas are arranged on a blanking carrier disc, and the rotation switching of the blanking carrier disc is realized in cooperation with a grooved wheel mechanism and a carrier disc branch pipe. The blanking linear motor module does not need to move back and forth for a long distance during blanking. Through the cooperation of a conical plug in the cavity of the carrier disc and a carrier plate magnetic block on the diaphragm carrier plate, the carrier plate air hole is connected to negative pressure, the diaphragm falls on the diaphragm carrier plate and is adsorbed and fixed, the diaphragm is not prone to displacement due to shaking during the carrying process, the stacking neatness is improved, the position of the carrier disc needs to be frequently adjusted in order to match the diaphragm quality or blanking sequence during the material arrangement, and the problem that the diaphragm is prone to shifting during the process is solved.

Description

Technical Field

[0001] This invention relates to the field of film optical sorting and feeding technology, and in particular to a multi-level feeding mechanism for film optical detection and sorting. Background Technology

[0002] For the visual inspection of precision diaphragms, the mainstream approach is to use an industrial camera with a dedicated light source to capture images of the diaphragm surface. Then, image algorithms are used to identify defects such as scratches, pinholes, dirt, missing corners, and warping. Defective products are then removed using pneumatic pushers and vacuum nozzles. For the material classification of mixed films, NIR (near-infrared) spectral sensors are often used to detect the molecular structure characteristics of the film to distinguish between different materials such as PE, PET, PP, and PVC. This method is already widely used in the field of waste film recycling and sorting.

[0003] In existing film optical inspection equipment, the unloading process is mostly completed by several linear motor modules arranged in different positions in conjunction with the nozzle. After the films are inspected, they are sorted and placed according to their quality grade. However, in order to match the film quality or unloading order, the tray needs to be frequently adjusted during the unloading process. The films are prone to shifting during this process, which affects the neatness of the stacking. At the same time, when films of different quality and materials need to be stored in separate areas, the distance between the storage areas is far. The linear motor module needs to repeatedly switch the position of the tray to pick up the films, resulting in low overall efficiency, cumbersome operation procedures, and increased vibration of the mechanism. Summary of the Invention

[0004] This invention provides a multi-level feeding mechanism for optical inspection and sorting of films, which solves the problems of frequent adjustment of the carrier tray during material placement to match the quality or feeding order of the films, which can cause the films to move around and affect the neatness of the stacking. At the same time, when films of different qualities and materials need to be stored in separate areas, the distance between the storage areas is far, and the linear motor module needs to repeatedly switch the carrier tray position to pick up the films, resulting in low overall efficiency, cumbersome operation procedures, and increased vibration of the mechanism.

[0005] This invention provides a multi-level unloading mechanism for optical inspection and sorting of films, specifically comprising: a conveying mechanism fixed above an optical inspection stage; a film loading mechanism, an optical inspection camera, a turntable assembly, and an unloading linear motor module also mounted above the optical inspection stage; the conveying mechanism is a linear motor module; an unloading conveying slide is provided on the right half of the conveying mechanism; an unloading arm is provided in front of the unloading conveying slide; an unloading push cylinder is fixed to the front side of the unloading arm; an unloading slider is fixed to the lower end of the piston rod of the unloading push cylinder; the unloading slider is slidably connected to the front of the unloading arm; a film suction nozzle is mounted on the unloading slider via an extended inspection arm; the film suction nozzle is connected to an air pump via a pipeline; the unloading... A linear motor module is positioned in front of the conveying mechanism. The unloading linear motor module is connected to an unloading control slide, on which a carrier plate support tube is fixed. The unloading carrier plate is supported above the carrier plate support tube. The unloading carrier plate has three membrane unloading areas and one blue membrane unloading carrier plate. Each membrane unloading area has four carrier plate slots recessed inside. The unloading carrier plate has a carrier plate cavity that communicates with the carrier plate support tube. The carrier plate support tube is connected to a vacuum pump through a vacuum suction tube. Each carrier plate slot has a guide cone hole at the bottom that communicates with the carrier plate cavity. Air filters and membrane carrier plates are placed in the carrier plate slots. The membrane carrier plates are stacked on top of the air filters, and carrier plate air holes are opened through the membrane carrier plates.

[0006] Furthermore, the detection extension arm extends horizontally to the left, and the diaphragm nozzle is rotatably connected to the left end of the detection extension arm via a bearing.

[0007] Furthermore, a diaphragm reversing motor is fixed to the front side of the feeding slider, and a suction nozzle reversing pulley is fixed to the top of the diaphragm suction nozzle. The output shaft of the diaphragm reversing motor is connected to the suction nozzle reversing pulley via a synchronous belt to drive the diaphragm suction nozzle to rotate.

[0008] Furthermore, a grooved wheel mechanism is provided between the feeding control slide and the feeding tray. The grooved wheel mechanism includes a shifting motor, an active dial, and a driven grooved wheel. The shifting motor is fixed on the feeding control slide by a bracket and drives the active dial. The driven grooved wheel is rotatably sleeved on the top of the tray support pipe through a bearing and a sealing ring, and the driven grooved wheel is fixedly connected to the bottom of the feeding tray. The tray cavity is connected to the tray support pipe.

[0009] Furthermore, a floating frame is provided directly below each carrier plate slot in the cavity of the carrier plate, and a block connecting rod is vertically connected to each of the four top corners of the floating frame.

[0010] Furthermore, the flared end of the guide cone hole faces upward, and a conical block is fixed at the top of each block connecting rod. The conical block is located in the corresponding guide cone hole. The conical block is an iron cone. When the conical surface of the conical block is in contact with the conical surface of the guide cone hole, the upper end of the conical block retracts into the interior of the guide cone hole.

[0011] Furthermore, a ventilation gap is left between the lower port edge of the guide cone hole and the plug connecting rod.

[0012] Furthermore, four carrier magnetic blocks are embedded in the diaphragm carrier plate, and the carrier magnetic blocks are located above the conical block.

[0013] Furthermore, when the diaphragm carrier plate is placed on the air filter, the carrier plate magnetic block magnetically attracts the conical block through the air filter, causing the conical block to move upward until its top is flush with the upper port of the guide cone hole.

[0014] Furthermore, the front and rear edges of the guide cone hole are recessed with finger grooves to facilitate the picking up of the diaphragm carrier plate.

[0015] This invention provides a multi-stage feeding mechanism for optical detection and sorting of diaphragms, which has the following beneficial effects: The multi-grade unloading mechanism for optical detection and sorting of films provided by this invention sets multiple unloading areas on the unloading tray, and uses a grooved wheel mechanism and tray support pipe to achieve rotational switching of the unloading tray. Each unloading area can correspond to films of different quality grades. During unloading, there is no need for the unloading linear motor module to move back and forth over a long distance. The grooved wheel mechanism controls the unloading tray to rotate 90 degrees to switch the target film unloading area to the vicinity of the unloading arm, which effectively shortens the receiving stroke and reduces the mechanism vibration caused by frequent repositioning. The unloading process is more stable and smooth. At the same time, the tray support pipe is rotatably connected to the unloading tray through bearings and sealing rings. When the unloading tray rotates, the tray cavity and the tray support pipe always remain connected, avoiding the problem of pipe winding. The negative pressure adsorption is not affected by the rotation.

[0016] In terms of membrane adsorption and positioning, each carrier plate slot is equipped with an air filter and a membrane carrier plate. Selective adsorption is achieved through the cooperation of the conical block in the carrier plate cavity and the magnetic block on the membrane carrier plate. In the slot with the membrane carrier plate, the conical block floats up under the action of magnetic attraction, the guide cone hole opens, and the air hole of the carrier plate is connected to negative pressure. The membrane falls onto the membrane carrier plate and is immediately adsorbed and fixed. It is not easy to be displaced due to shaking during transportation, and the neatness of stacking is improved. In the empty slot without membrane carrier plates, the conical block sinks down and seals the guide cone hole under the action of gravity and air pressure. External air will not enter the carrier plate cavity from the empty area. The negative pressure is concentrated in the effective working area, reducing the ineffective pumping load of the vacuum pump and having a certain energy saving effect. The air filter has both pressure equalization and filtration functions, making the negative pressure distribution under the membrane carrier plate uniform, while intercepting the sucked-in dust.

[0017] During the unloading process, the conveying mechanism moves the unloading arm to the picking position via the unloading conveying slide. After the membrane suction nozzle picks up the membrane, the unloading push cylinder lifts and the membrane reversing motor drives the membrane suction nozzle to rotate, adjusting the membrane posture. Combined with a photo confirmation taken by the lower right camera, the membranes are neatly stacked in the corresponding material boxes. The entire mechanism integrates multi-level sorting, posture adjustment, negative pressure adsorption, and zoned unloading into one unit, simplifying the operation procedure and improving unloading efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0019] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0020] In the attached diagram: Figure 1 A schematic diagram of the overall structure of this application is shown; Figure 2 This diagram shows the layout of the feeding mechanism in the film optical inspection device of this application; Figure 3 A schematic diagram of the handling mechanism of this application is shown; Figure 4 A schematic diagram of the structure of the unloading arm of this application is shown; Figure 5 A structural schematic diagram of the bottom of this application is shown; Figure 6 A schematic diagram of the transposition motor of this application is shown; Figure 7 A schematic diagram of the Geneva mechanism of this application is shown; Figure 8 A schematic diagram of the unloading tray of this application is shown; Figure 9 A schematic diagram of the carrier plate slot structure of this application is shown; Figure 10 A schematic diagram of the diaphragm carrier plate of this application is shown; Figure 11 A schematic diagram of the carrier disk cavity structure of this application is shown; Figure 12 A schematic diagram of the material feeding control slide table of this application is shown; Figure 13 This application shows Figure 10 A magnified structural diagram of point A; Figure 14 This application shows Figure 10 A magnified structural diagram of part B.

[0021] Figure label: 1. Optical inspection stage; 2. Diaphragm loading mechanism; 3. Optical inspection camera; 4. Turntable assembly; 5. Conveying mechanism; 501. Unloading and conveying slide; 6. Unloading arm; 601. Unloading push cylinder; 602. Unloading slider; 603. Inspection extension arm; 604. Diaphragm reversing motor; 605. Diaphragm suction nozzle; 606. Suction nozzle reversing pulley; 7. Unloading linear motor module; 701. Unloading control slide; 8. Unloading tray; 801. Carrier slot 802. Guide cone hole; 803. Carrier plate cavity; 804. Blue film unloading carrier plate; 805. Floating frame; 806. Block connecting rod; 807. Conical block; 9. Grooved wheel mechanism; 901. Shifting motor; 902. Active dial; 903. Driven grooved wheel; 10. Carrier plate branch pipe; 1001. Vacuum suction tube; 1002. Vacuum pump; 11. Air filter; 12. Membrane carrier plate; 1201. Carrier plate magnetic block; 1202. Carrier plate air hole. Detailed Implementation

[0022] Example 1: Please refer to Figures 1 to 14 : This invention proposes a multi-level unloading mechanism for optical inspection and sorting of films, comprising: a conveying mechanism 5, which is fixed above an optical inspection stage 1; a film loading mechanism 2, an optical inspection camera 3, a turntable assembly 4, and an unloading linear motor module 7 are also installed above the optical inspection stage 1; the conveying mechanism 5 is a linear motor module; an unloading conveying slide 501 is provided on the right half of the conveying mechanism 5; an unloading arm 6 is provided in front of the unloading conveying slide 501; and an unloading push cylinder 601 is fixed to the front side of the unloading arm 6. A feeding slider 602 is fixed to the lower end of the piston rod of the optical inspection stage 1. The feeding slider 602 is slidably connected to the front of the feeding arm 6. A diaphragm suction nozzle 605 is installed on the feeding slider 602 via a detection extension arm 603. The diaphragm suction nozzle 605 is connected to an air pump via a pipeline. The conveying mechanism 5, as a linear motor module, drives the feeding conveying slide 501 to move the feeding arm 6 horizontally. The feeding push cylinder 601 controls the lifting and lowering of the feeding slider 602, which in turn drives the diaphragm suction nozzle 605 to switch between the picking position and the feeding position via the detection extension arm 603. By arranging the conveying mechanism 5 above the optical inspection stage 1, the diaphragm suction nozzle 605 can directly cover the working range between the turntable assembly 4 and the feeding linear motor module 7. The entire picking and placing path is short and has no unnecessary movements, which helps to improve the feeding cycle time.

[0023] In this embodiment, the feeding linear motor module 7 is disposed in front of the conveying mechanism 5. The feeding linear motor module 7 is driven and connected to the feeding control slide 701. A carrier plate support pipe 10 is fixed on the feeding control slide 701, and the feeding carrier plate 8 is supported above the carrier plate support pipe 10. A Geneva mechanism 9 is provided between the feeding control slide 701 and the feeding carrier plate 8. The Geneva mechanism 9 includes a shifting motor 901, an active dial 902, and a driven Geneva wheel 903. The shifting motor 901 is fixed to the feeding control slide 701 by a bracket. The upper drive dial 902 drives the driven grooved wheel 903, which is rotatably mounted on the top of the tray support tube 10 via bearings and a sealing ring. The driven grooved wheel 903 is fixedly connected to the lower part of the unloading tray 8. The tray cavity 803 is connected to the tray support tube 10. The unloading linear motor module 7 drives the entire unloading tray 8 to feed back and forth via the unloading control slide 701. Meanwhile, the shifting motor 901 in the grooved wheel mechanism 9 drives the drive dial 902 to move the driven grooved wheel 903, so that the unloading tray 8 rotates precisely around the tray support tube 10. After the two movements are superimposed, any diaphragm unloading area on the unloading tray 8 can be quickly aligned with the unloading arm 6 without long-distance reciprocating movement, and the connection between the tray support tube 10 and the tray cavity 803 is not affected by rotation.

[0024] In this embodiment, the feeding tray 8 is provided with three membrane feeding areas and a blue membrane feeding tray 804. Each membrane feeding area has four carrier plate slots 801 recessed inside. The feeding tray 8 has a carrier plate cavity 803 that communicates with the carrier plate branch pipe 10. The carrier plate branch pipe 10 is connected to a vacuum pump 1002 through a vacuum suction pipe 1001. The bottom of each carrier plate slot 801 has a guide cone hole 802 that communicates with the carrier plate cavity 803. An air filter 11 and a membrane carrier plate 12 are placed in the carrier plate slot 801. The membrane carrier plate 12 is stacked on top of the air filter 11, and a carrier plate air hole 1202 is opened through the membrane carrier plate 12. The three membrane feeding areas correspond to different quality grades. The blue membrane feeding tray 804 is used to place the blue membrane to achieve partitioned storage. The vacuum pump 1002 maintains a negative pressure in the carrier plate cavity 803 through the vacuum suction tube 1001 and the carrier plate branch tube 10. The negative pressure acts on the membrane through the guide cone hole 802 and the carrier plate air hole 1202. The air filter 11 in the carrier plate slot 801 is sandwiched below the membrane carrier plate 12, which can both evenly distribute the negative pressure and intercept dust, so that the adsorption force acts stably on the upper surface of the membrane carrier plate 12.

[0025] In this embodiment, the detection extension arm 603 is installed horizontally to the left, and the diaphragm suction nozzle 605 is rotatably connected to the left end of the detection extension arm 603 via a bearing. The horizontally extended detection extension arm 603 facilitates the movement of the diaphragm suction nozzle 605 above the optical inspection camera 3 to perform optical inspection on the diaphragm, avoiding cluttered backgrounds during optical inspection and improving image recognition accuracy.

[0026] In this embodiment, a diaphragm reversing motor 604 is fixed to the front side of the feeding slider 602, and a suction nozzle reversing pulley 606 is fixed to the top of the diaphragm suction nozzle 605. The output shaft of the diaphragm reversing motor 604 is connected to the suction nozzle reversing pulley 606 via a synchronous belt to drive the diaphragm suction nozzle 605 to rotate, thus adjusting the orientation of the diaphragm. The diaphragm reversing motor 604 on the feeding slider 602 drives the suction nozzle reversing pulley 606 via a synchronous belt, causing the diaphragm suction nozzle 605 to rotate around the bearing. During the feeding process, after the lower right camera takes a picture to confirm the diaphragm posture, the control system can instruct the diaphragm reversing motor 604 to rotate the diaphragm to the target orientation and then place it into the corresponding carrier plate slot 801 as needed.

[0027] In Example 2, based on Example 1, a floating frame 805 is provided directly below each carrier plate slot 801 within the carrier plate cavity 803. A block connecting rod 806 is vertically connected to each of the four apex corners of the floating frame 805. The flared end of the guide cone hole 802 faces upwards. A conical block 807 is fixed to the top of each block connecting rod 806, and the conical block 807 is located within the corresponding guide cone hole 802. The conical block 807 is an iron cone. When the conical surface of the conical block 807 is in contact with the conical surface of the guide cone hole 802, the upper end of the conical block 807 retracts into the guide cone hole 802. A ventilation gap is left between the lower edge of the guide cone hole 802 and the block connecting rod 806. Four carrier plate magnets 12 are embedded on the diaphragm carrier plate 12. 01. The carrier plate magnetic block 1201 is located above the conical block 807. When the diaphragm carrier plate 12 is placed on the air filter 11, the carrier plate magnetic block 1201 magnetically attracts the conical block 807 through the air filter 11, causing the conical block 807 to move upward until its top is flush with the upper port of the guide cone hole 802. The front and rear edges of the guide cone hole 802 are recessed with finger grooves to facilitate the removal of the diaphragm carrier plate 12. The diaphragm carrier plate 12 is embedded with four carrier plate magnetic blocks 1201. When the diaphragm carrier plate 12 is placed into the carrier plate slot 801 and presses down the air filter 11, the carrier plate magnetic block 1201 lifts the conical block 807 upward through the air filter 11, causing the top of the conical block 807 to rise to be flush with the upper port of the guide cone hole 802, the air passage is fully opened, and the negative pressure reaches the carrier plate air hole 1202 directly. The finger grooves on the edge of the guide cone hole 802 facilitate manual placement and removal of the diaphragm carrier plate 12, providing sufficient space for fingers to grip the carrier plate during assembly and disassembly. When no diaphragm carrier plate 12 is placed in the slot, the floating frame 805 sinks under gravity and negative pressure, and the conical block 807's conical surface fits against the guide cone hole 802, sealing it. The gap between the lower end of the guide cone hole 802 and the block connecting rod 806 ensures that air pressure can press the cone block tightly. In this way, the empty slot automatically closes, preventing external air from short-circuiting into the carrier plate cavity 803 and maintaining the negative pressure intensity of the effective working area.

[0028] Working principle: When the equipment is working, the diaphragm to be tested is fed into the turntable assembly 4 through the diaphragm feeding mechanism 2. The optical inspection camera 3 acquires the appearance image of the diaphragm and completes defect identification and grade determination. The system divides the inspection results into three grades: excellent, substandard, and NG. In the unloading stage, the conveying mechanism 5 drives the unloading conveying slide 501 to move the unloading arm 6 to the picking position. The unloading push cylinder 601 pushes the unloading slider 602 downward. The diaphragm suction nozzle 605 at the end of the inspection extension arm 603 picks up the diaphragm and rises to reset. Then it moves to the lower right camera to take a picture to confirm the current posture of the diaphragm. The diaphragm reversing motor 604 drives the diaphragm suction nozzle 605 to rotate through the synchronous belt and the suction nozzle reversing pulley 606 to adjust the diaphragm to the target orientation. Meanwhile, the linear motor module 7 drives the feeding control slide 701 to feed forward and backward. The shifting motor 901 of the slotted wheel mechanism 9 moves the driven slotted wheel 903 via the active dial 902, causing the feeding tray 8 to rotate and index around the tray support tube 10, switching the diaphragm feeding area corresponding to the diaphragm grade to the receiving position. The two movements work together to complete the positioning. In each slot 801 of the feeding tray 8, in the slot containing the diaphragm carrier plate 12, the carrier plate magnetic block 1201 on the diaphragm carrier plate 12 floats up through the air filter 11 magnetically attracted conical block 807. The guide cone hole 802 is in the open state. The vacuum pump 1002 maintains negative pressure in the tray cavity 803 through the vacuum suction tube 1001 and the tray support tube 10. Negative pressure is applied to the upper surface of the diaphragm carrier plate 12 through the guide cone hole 802 and the carrier plate air hole 1202. After the diaphragm is released by the diaphragm suction nozzle 605, the diaphragm is adsorbed and fixed, reducing shaking and displacement. In the empty slots where the diaphragm carrier plate 12 is not placed, the conical block 807 sinks and seals the guide cone hole 802 under the action of gravity and air pressure, preventing external air from entering the carrier plate cavity 803 and consuming negative pressure. When changing zones, the groove wheel mechanism 9 drives the unloading carrier plate 8 to rotate 90 degrees for quick switching. The carrier plate branch pipe 10 is connected to the unloading carrier plate 8 through bearings and sealing rings. During the rotation, the pipeline does not entangle, and the negative pressure supply is continuous and stable. The whole mechanism realizes continuous operation of multi-level sorting, posture adjustment, and zone adsorption unloading.

Claims

1. A multi-stage feeding mechanism for optical inspection and sorting of diaphragms, comprising: The conveying mechanism (5) is fixed above the optical inspection stage (1). Above the optical inspection stage (1) are also installed a film loading mechanism (2), an optical inspection camera (3), a turntable assembly (4), and a feeding linear motor module (7). The conveying mechanism (5) is a linear motor module. The right half of the conveying mechanism (5) is provided with a feeding conveying slide (501). A feeding arm (6) is provided in front of the feeding conveying slide (501). The front of the feeding arm (6) A feeding push cylinder (601) is fixed to the side, and a feeding slider (602) is fixed to the lower end of the piston rod of the feeding push cylinder (601). The feeding slider (602) is slidably connected to the front of the feeding arm (6). A diaphragm suction nozzle (605) is installed on the feeding slider (602) through a detection extension arm (603). The diaphragm suction nozzle (605) is connected to an air pump through a pipeline. The feeding linear motor module (7) is set in front of the conveying mechanism (5). The feeding linear motor module (7) drives the feeding arm. A control slide (701) is provided, on which a tray support pipe (10) is fixed. The tray (8) is supported above the tray support pipe (10). A grooved wheel mechanism (9) is provided between the control slide (701) and the tray (8). The tray (8) has three diaphragm feeding areas and a blue diaphragm feeding tray (804). Each diaphragm feeding area has four tray slots (801) recessed inside. The tray (8) has openings inside the tray support pipe (10). The carrier plate cavity (803) is connected, and the carrier plate branch pipe (10) is connected to the vacuum pump (1002) through the vacuum suction pipe (1001). Each carrier plate slot (801) has a guide cone hole (802) at the bottom that is connected to the carrier plate cavity (803). An air filter (11) and a membrane carrier plate (12) are placed in the carrier plate slot (801). The membrane carrier plate (12) is stacked on top of the air filter (11), and a carrier plate air hole (1202) is opened through the membrane carrier plate (12).

2. The multi-stage feeding mechanism for diaphragm optical detection and sorting according to claim 1, characterized in that, The detection extension arm (603) is installed horizontally to the left, and the diaphragm nozzle (605) is rotatably connected to the left end of the detection extension arm (603) via a bearing.

3. The multi-stage feeding mechanism for diaphragm optical detection and sorting according to claim 2, characterized in that, A diaphragm reversing motor (604) is fixed to the front side of the feeding slider (602), and a suction nozzle reversing pulley (606) is fixed to the top of the diaphragm suction nozzle (605). The output shaft of the diaphragm reversing motor (604) is connected to the suction nozzle reversing pulley (606) via a synchronous belt to drive the diaphragm suction nozzle (605) to rotate.

4. The multi-stage feeding mechanism for diaphragm optical detection and sorting according to claim 1, characterized in that, The grooved wheel mechanism (9) includes a shift motor (901), an active dial (902), and a driven grooved wheel (903). The shift motor (901) is fixed on the unloading control slide (701) by a bracket and drives the active dial (902). The driven grooved wheel (903) is rotated and sleeved on the top of the tray support pipe (10) through bearings and sealing rings, and the driven grooved wheel (903) is fixedly connected to the bottom of the unloading tray (8). The tray cavity (803) is connected to the tray support pipe (10).

5. The multi-level feeding mechanism for diaphragm optical detection and sorting according to claim 1, characterized in that, A floating frame (805) is provided directly below each carrier plate slot (801) in the carrier plate cavity (803), and a block connecting rod (806) is vertically connected to each of the four top corners of the floating frame (805).

6. The multi-level feeding mechanism for diaphragm optical detection and sorting according to claim 5, characterized in that, The flared end of the guide cone hole (802) faces upward, and a conical block (807) is fixed at the top of each block connecting rod (806). The conical block (807) is located in the corresponding guide cone hole (802). The conical block (807) is an iron cone. When the conical surface of the conical block (807) is in contact with the conical surface of the guide cone hole (802), the upper end of the conical block (807) retracts into the interior of the guide cone hole (802).

7. A multi-stage feeding mechanism for diaphragm optical detection and sorting according to claim 6, characterized in that, A ventilation gap is left between the lower port edge of the guide cone hole (802) and the plug connecting rod (806).

8. The multi-stage feeding mechanism for diaphragm optical detection and sorting according to claim 1, characterized in that, Four carrier magnetic blocks (1201) are embedded on the diaphragm carrier plate (12), and the carrier magnetic blocks (1201) are located above the conical block (807).

9. A multi-stage feeding mechanism for diaphragm optical detection and sorting according to claim 8, characterized in that, When the diaphragm carrier plate (12) is placed on the air filter (11), the carrier plate magnetic block (1201) magnetically attracts the conical block (807) through the air filter (11), causing the conical block (807) to move up until its top end is flush with the upper port of the guide cone hole (802).

10. A multi-stage feeding mechanism for diaphragm optical detection and sorting according to claim 1, characterized in that, The front and rear edges of the guide cone hole (802) are recessed with finger grooves to facilitate the picking up of the diaphragm carrier plate (12).

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