Appearance detection feeding mechanism

Abstract

The utility model provides appearance detection's feeding mechanism belongs to automation equipment technical field, this mechanism includes two feeding conveyors of gantry both sides, the turnover mechanism of being equipped with between them, two independent drive's snatch translation mechanism on the gantry and snatch cross -moving mechanism of being located turnover mechanism one side. Two snatch translation mechanism alternate operation, snatch and remove to the turnover mechanism with the product that places vertically, the turnover mechanism will product synchronous turnover 90 DEG to horizontal attitude, snatch cross -moving mechanism again accurate transfer to detection assembly line. The snatch unit has the function of adjustable interval and damping buffer, realizes flexible clamping, the turnover mechanism can be translated and draw near cross -moving snatch position, and is equipped with state monitoring, ensures stable operation. The present application effectively solves the problems of low feeding efficiency, product damage, unstable turnover and poor connection in the prior art, and is suitable for high-precision, high-beat automatic appearance detection scene.

Description

Technical Field

[0001] This utility model relates to the field of automated equipment, specifically to a feeding mechanism for appearance inspection. Background Technology

[0002] In industrial automated production, especially when inspecting the appearance of electronic components, precision structural parts, and consumer electronics, products often need to be fed into the inspection line in a specific orientation. However, many products are placed vertically during the loading stage, so they need to be flipped from vertical to horizontal before entering the inspection station.

[0003] Currently, most common feeding and tilting mechanisms adopt a single-channel feeding and single gripping unit structure. This type of equipment has the following prominent problems: Low material loading efficiency: After completing one grab-flip-place action, the single-channel structure has to wait for the next product to arrive before the next round of operation can begin, resulting in a significant time gap and making it difficult to meet the needs of high-capacity testing lines. Poor gripping adaptability: Traditional grippers are mostly rigid structures with fixed spacing, which cannot be flexibly adjusted according to product size and lack a buffer mechanism. They are prone to scratching or deforming the product surface during gripping, and are especially unsuitable for products with thin walls, high gloss or brittle materials. The flipping process is unstable: Existing flipping mechanisms are often limited by space and flip the product directly in a vertical state, which can easily cause the product to shake, fall off, or even interfere with the mechanism; at the same time, most flipping devices only support single-station operation and have limited processing capacity. Poor connection with downstream testing lines: After the product is flipped, its position is fixed and it needs to be moved a long distance by a transverse mechanism to grab it, which not only reduces efficiency but also affects the testing accuracy due to positioning errors; some systems lack real-time monitoring of the flipping state, making it difficult to detect abnormalities in time and affecting the overall operational reliability.

[0004] The aforementioned problems severely restrict the automation level, inspection efficiency, and product yield of appearance inspection systems. Therefore, there is an urgent need for a new type of feeding mechanism that can achieve efficient parallel feeding, flexible adaptive gripping, and stable synchronous flipping to overcome the shortcomings of existing technologies. Utility Model Content

[0005] The main purpose of this utility model is to provide a feeding mechanism for appearance inspection, thereby solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: it includes a feeding conveying mechanism located on both sides of the gantry frame, a flipping mechanism is provided between the two feeding conveying mechanisms, a sliding gripping and translation mechanism is provided on the gantry frame for gripping and placing the products on the feeding conveying mechanism into the flipping mechanism, and a gripping and lateral movement mechanism is provided on one side of the flipping mechanism for gripping and placing the products on the flipping mechanism onto the inspection production line.

[0007] There are two gripping and translation mechanisms, which correspond to two feeding and conveying mechanisms and are used to alternately grip and place the products on the two feeding and conveying mechanisms into the flipping mechanism. The back of the translation plate in the gripping translation mechanism slides against the slide rail on the gantry frame via a slider. The gantry frame is equipped with a left translation drive mechanism and a right translation drive mechanism on both sides to drive the two gripping translation mechanisms to move respectively.

[0008] Preferably, the left translation drive mechanism and the right translation drive mechanism are synchronous belt drive mechanisms. The two ends of the synchronous belt are rotated by the synchronous belt pulleys against the inside of the gantry. The back of the translation plate is fixed on the synchronous belt. The synchronous belt pulleys are rotated by the motor, thereby causing the synchronous belt to pull the translation plate to move back and forth.

[0009] Preferably, the translation plate is provided with a sliding first sliding frame, the bottom of the first sliding frame is fixedly provided with a first fixed plate, the first fixed plate is provided with sliding movable gripping seats on both sides, and a fixed gripping seat is fixedly provided in the middle. Both the movable gripping seat and the fixed gripping seat are provided with two relatively sliding first gripping plates.

[0010] Preferably, a gripping drive mechanism is provided between one side of the translation plate and the first sliding frame, and a first slider frame is provided on the other side. The first slider frame is fixed on the translation plate, and the first sliding frame is connected to the first slider frame through a slide rail and a slider. The gripping drive mechanism is a lead screw drive mechanism. The two ends of the lead screw are supported by bearings and rotate within the gripping drive mechanism. One end of the lead screw is connected to a servo motor. The back of the first sliding frame is connected to the lead screw through a lead sleeve. The servo motor drives the lead screw to rotate, thereby causing the lead sleeve and the first sliding frame to move up and down.

[0011] Preferably, a first drive unit is provided in the middle of the first fixed plate, and a bidirectional lead screw is connected to both ends of the first drive unit. The ends of the bidirectional lead screws rotate against the ends of the first fixed plate through bearing seats. The bottom of the movable gripper is connected to the bidirectional lead screw via a threaded sleeve, and the two sides of the movable gripper are connected to the first fixed plate via the first guide rail and the slider. Both the mobile gripper and the fixed gripper are equipped with a first floating seat plate at their bottom. The first floating seat plate is connected to the mobile gripper and the fixed gripper around its perimeter by a first shock absorber. A bidirectional cylinder is fixed on the first floating seat plate, and the first gripping plates are located at both ends of the bidirectional cylinder. The two first gripping plates are driven to move relative to each other by the bidirectional cylinder.

[0012] Preferably, the flipping mechanism has a second sliding frame on the flipping mounting bracket, and the second sliding frame has multiple flipping units; The second sliding frame is equipped with a second drive unit at its end. The second drive unit drives multiple tilting units to operate synchronously through a drive linkage and a commutator. The bottom sides of the second sliding frame are connected to the flip mounting frame via sliders and the second guide rail, and the middle of the second sliding frame is connected to the flip mounting frame via a sliding drive cylinder.

[0013] Preferably, the two ends of the rotating shaft in the flipping unit abut against the second sliding frame and rotate through the bearing seats. A flipping seat is fixed on one side of the rotating shaft, a support plate is fixed on the bottom of the outer side of the flipping seat, and a relatively movable second gripping plate is provided on both sides of the flipping seat. A second bidirectional cylinder is fixed inside the flipping seat, and the second gripping plates are located at both ends of the second bidirectional cylinder. The two second gripping plates are driven to move relative to each other by the second bidirectional cylinder.

[0014] Preferably, a monitoring frame is fixed behind the flipping mounting frame, and the monitoring frame is equipped with multiple monitors, which face the flipping unit and are used to monitor the product gripping and flipping status.

[0015] Preferably, the transverse mounting frame in the grasping transverse mechanism is provided with a sliding transverse plate, and a connecting plate is fixedly provided on one side of the middle part of the transverse plate; The connecting plate is equipped with a sliding third sliding frame, and a second fixed plate is fixed at the bottom of the third sliding frame. The second fixed plate is equipped with multiple gripping units. One side of the transverse plate is connected to the transverse mounting frame via a transverse drive mechanism, and the other side is connected to the transverse mounting frame via a third guide rail and a slider; One side of the third sliding frame is connected to the connecting plate via a vertical drive mechanism, and the other side is connected to the connecting plate via a slider and a slide rail. The slider is fixedly connected to the third sliding frame via the second slider frame. The transverse drive mechanism and the vertical drive mechanism are lead screw drive mechanisms. The two ends of the lead screw are supported by bearings and rotate within the gripping transverse drive mechanism and the vertical drive mechanism. One end of the lead screw is connected to a servo motor. The back of the transverse plate and the third sliding frame are connected to the lead screw through a screw sleeve.

[0016] Preferably, the second floating seat plate in the gripping unit is connected to the second fixed plate around its perimeter by multiple second shock absorbers. A third bidirectional cylinder is fixedly installed at the bottom of the second floating seat plate. The two ends of the third bidirectional cylinder are provided with relatively movable mounting plates. A third gripping plate is fixedly installed on both sides of the bottom of the mounting plate.

[0017] This utility model provides a feeding mechanism for appearance inspection, which has the following advantages: 1. The system adopts independent feeding and conveying mechanisms on both sides and corresponding gripping and translation mechanisms to work in coordination, realizing continuous cyclic operation of "grabbing while preparing", eliminating waiting time and greatly improving system cycle time and production capacity.

[0018] 2. The gripping distance can be automatically adjusted by a bidirectional lead screw to adapt to products of different sizes; at the same time, it integrates a vibration damping and buffer structure to achieve flexible clamping and effectively avoid damage to precision or fragile products.

[0019] 3. Multiple sets of flipping units work together to achieve precise 90° flipping, combined with tray support and lateral clamping, and the gripping distance is expanded before placement to reserve sufficient flipping space to prevent movement interference and product falling off.

[0020] 4. The flipping mechanism can actively move closer to the lateral gripping unit, and with the help of high-precision servo drive and real-time status monitoring, it can realize the smooth, accurate and seamless transfer of products from flipping to the inspection line. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a top view of the overall structure of this utility model; Figure 2 This is a side view showing the arrangement of the feeding and conveying mechanism and the gripping and translating mechanism of this utility model; Figure 3 This is an isometric view of the arrangement of the feeding and conveying mechanism and the gripping and translation mechanism of this utility model; Figure 4 This is an isometric view of the gripping and translation mechanism of this utility model; Figure 5 This is an isometric view of the flipping mechanism of this utility model; Figure 6 This is another axial side view of the flipping mechanism of this utility model; Figure 7 This is an isometric view of the flip unit of this utility model; Figure 8 This is another axial side view of the flipping unit of this utility model; Figure 9 This is an isometric view of the gripping and lateral movement mechanism of this utility model; Figure 10 This is an isometric view of the gripping unit of this utility model; In the diagram: 1. Feeding conveyor mechanism; 2. Gantry frame; 201. Left translation drive mechanism; 202. Right translation drive mechanism; 203. Slide rail; 3. Gripping and translation mechanism; 301. Translation plate; 302. Gripping drive mechanism; 303. First sliding frame; 304. First slider frame; 305. First fixed plate; 306. First guide rail; 307. Moving gripper seat; 308. Fixed gripper seat; 309. First floating seat plate; 310. Double-acting cylinder; 311. First gripping plate; 312. First drive unit; 313. Double-acting lead screw; 314. First vibration damper; 4. Tilting mechanism; 401. Tilting mounting frame; 402. Second guide rail; 403. Second sliding frame; 404. Tilting unit; 4041. Bearing seat; 404. 2; Second gripping plate 4043; Support plate 4044; Second bidirectional cylinder 4045; Rotating shaft 4046; Second drive unit 405; Reversing device 406; Drive linkage 407; Monitoring frame 408; Monitor 409; Sliding drive cylinder 410; Gripping lateral movement mechanism 5; Lateral movement mounting frame 501; Third guide rail 502; Lateral movement drive mechanism 503; Lateral movement plate 504; Vertical drive mechanism 505; Second slider frame 506; Third sliding frame 507; Second fixed plate 508; Gripping unit 509; Second floating seat plate 5091; Third bidirectional cylinder 5092; Mounting plate 5093; Third gripping plate 5094; Second vibration damper 5095; Connecting plate 510. Detailed Implementation

[0022] like Figures 1-10 As shown, the loading mechanism for appearance inspection includes loading conveyor mechanisms 1 located on both sides of the gantry 2, a flipping mechanism 4 between the two loading conveyor mechanisms 1, and a sliding gripping and translating mechanism 3 on the gantry 2 for gripping and placing the products on the loading conveyor mechanism 1 into the flipping mechanism 4. A gripping and translating mechanism 5 is provided on one side of the flipping mechanism 4 for gripping and placing the products on the flipping mechanism 4 onto the inspection production line.

[0023] There are two gripping and translating mechanisms 3, which correspond to two feeding and conveying mechanisms 1, and are used to alternately grip and place the products on the two feeding and conveying mechanisms 1 into the flipping mechanism 4. The back of the translation plate 301 in the gripping translation mechanism 3 slides against the slide rail 203 on the gantry frame 2 via a slider. The gantry frame 2 is provided with a left translation drive mechanism 201 and a right translation drive mechanism 202 on both sides to drive the two gripping translation mechanisms 3 to move respectively.

[0024] The product is placed vertically and manually fed from the feeding conveyor 1. After the product is conveyed by the conveyor belt to below the gripping and translating mechanism 3, it stops. The gripping unit in the gripping and translating mechanism 3 grips, lifts, and moves the product to the flipping mechanism 4. The product is then placed into the gripping unit in the flipping mechanism 4, which flips the vertical product to a horizontal position. Finally, the gripping and translating mechanism 5 grips, lifts, and moves the product onto the inspection line conveyor belt. Figures 1-2 As shown, there are two feeding conveyor mechanisms 1, located on both sides of the gantry frame 2. The gantry frame 2 has two independently driven gripping and translation mechanisms 3, which can alternately grab and place the products on the two feeding conveyor mechanisms 1 into the flipping mechanism 4, resulting in higher feeding efficiency. In this example, the left translation drive mechanism 201 and the right translation drive mechanism 202 are synchronous belt drive mechanisms. The two ends of the synchronous belt rotate against the inside of the gantry frame 2 through synchronous pulleys. The back of the translation plate 301 is fixed on the synchronous belt. The synchronous pulley is driven by a motor to rotate, which in turn causes the synchronous belt to pull the translation plate 301 to move back and forth, alternately placing the products on the feeding conveyor mechanism 1 into the flipping mechanism 4.

[0025] Preferably, the translation plate 301 is provided with a sliding first sliding frame 303, the bottom of the first sliding frame 303 is fixedly provided with a first fixed plate 305, the first fixed plate 305 is provided with sliding movable gripping seats 307 on both sides, and a fixed gripping seat 308 is fixedly provided in the middle. Both the movable gripping seat 307 and the fixed gripping seat 308 are provided with two relatively sliding first gripping plates 311.

[0026] like Figures 3-4 As shown, the translation plate 301 and the first sliding frame 303 are connected by a gripping drive mechanism 302 and a slide rail and slider. The gripping drive mechanism 302 drives the first sliding frame 303 to move up and down. The slide rail and slider ensure smooth sliding between them. The slide rail is fixed on the first sliding frame 303, and the slider is fixed on the translation plate 301 by a first slider bracket 304. A first fixing plate 305 is installed at the bottom of the first sliding frame 303. First guide rails 306 are installed on both sides of the bottom of the first fixing plate 305, and a bidirectional lead screw 313 is installed in the middle. The first drive unit 312 has a bidirectional lead screw 313 with both ends abutting against the ends of the first fixed plate 305 via bearing seats. The first drive unit 312 is used to drive the bidirectional lead screw 313 to rotate. The two ends of the bidirectional lead screw 313 are connected to movable gripping seats 307 via threaded sleeves. The rotation of the bidirectional lead screw 313 can drive the movable gripping seats 307 at both ends to move relative to each other. Adjusting the distance between the movable gripping seats 307 and the fixed gripping seats 308 can increase the distance between the gripped vertical products before they are placed on the flipping mechanism 4, ensuring that there is space for flipping.

[0027] like Figure 4As shown, a first floating seat plate 309 is installed at the bottom of the movable gripping seat 307 and the fixed gripping seat 308 via a first vibration damper 314, which can play a buffering role when gripping the product; a two-way cylinder 310 is installed on the first floating seat plate 309, which is used to drive the first gripping plates 311 at both ends to move relative to each other and grip the product.

[0028] like Figures 5-8 As shown, the flip mounting frame 401 has a second sliding frame 403 that can be translated. The bottom sides of the second sliding frame 403 are connected to the flip mounting frame 401 via sliders and the second guide rail 402. The middle part of the second sliding frame 403 is connected to the flip mounting frame 401 via a sliding drive cylinder 410. The sliding drive cylinder 410 can drive the second sliding frame 403 to translate, so that the product on the flip mechanism 4 is close to the gripping transverse mechanism 5, which facilitates the gripping transverse mechanism 5 to grip the product.

[0029] like Figures 5-6 As shown, in this example, three sets of flipping units 404 are arrayed on the second sliding frame 403. The three sets of flipping units 404 are synchronously driven by the second drive unit 405, drive linkage 407, and commutator 406. This allows the product to be flipped from vertical to horizontal on the flipping unit 404, facilitating the gripping and moving of the gripping and traversing mechanism 5. A monitoring frame 408 is also installed behind the flipping mounting frame 401. A monitor 409 is installed on the monitoring frame 408 at the position corresponding to the flipping unit 404. The monitor 409 is used to monitor the product's placement and flipping gripping status on the flipping unit 404 in real time.

[0030] like Figures 7-8 As shown, the rotating shaft 4046 in the flipping unit 404 rotates by abutting against the second sliding frame 403 at both ends through bearing seats 4041. A flipping seat 4042 is fixed in the middle of the rotating shaft 4046. A second bidirectional cylinder 4045 is installed inside the flipping seat 4042. A second gripping plate 4043 is installed at both ends of the second bidirectional cylinder 4045. The second gripping plate 4043 at both ends is driven to move relative to each other by the second bidirectional cylinder 4045. Support plates 4044 are installed on both sides of the lower exterior of the flipping seat 4042 to support the vertical product. The second gripping plate 4043 clamps the product on both sides. Position sensors are installed on the two bearing seats 4041 at the horizontal and vertical positions to control the flipping seat 4042 to flip 90°.

[0031] like Figures 9-10As shown, the transverse mounting frame 501 is installed between the conveyor belt and the flipping mechanism 4 of the inspection production line. The two sides of the transverse plate 504 on the transverse mounting frame 501 are connected to the transverse mounting frame 501 through the third guide rail 502 slider and the transverse drive mechanism 503, respectively. The transverse plate 504 is driven to move back and forth by the transverse drive mechanism 503. A connecting plate 510 is installed on one side of the transverse plate 504. The two sides of the connecting plate 510 are connected to the third sliding frame 507 through the vertical drive mechanism 505 and the slide rail slider. The slider is installed on the third sliding frame 507 through the second slider frame 506. The vertical drive mechanism 505 drives the third sliding frame 507 to move up and down. The transverse drive mechanism 503 and the vertical drive mechanism 505 are screw drive mechanisms. The two ends of the screw are abutted against the gripping transverse drive mechanism 503 and the vertical drive mechanism 505 through bearings and rotate. One end of the screw is connected to a servo motor. The back of the transverse plate 504 and the third sliding frame 507 are connected to the screw through a screw sleeve.

[0032] The second floating seat plate 5091 in the gripping unit 509 is connected to the second fixed plate 508 around its perimeter by multiple second vibration dampers 5095. A third bidirectional cylinder 5092 is fixedly installed at the bottom of the second floating seat plate 5091. The two ends of the third bidirectional cylinder 5092 are provided with relatively movable mounting plates 5093. A third gripping plate 5094 is fixedly installed on both sides of the bottom of the mounting plate 5093. The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A feeding mechanism for appearance inspection, characterized by: It includes a feeding conveyor (1) located on both sides of the gantry (2), a flipping mechanism (4) between the two feeding conveyors (1), a sliding gripping and translation mechanism (3) on the gantry (2) for gripping and placing the products on the feeding conveyor (1) into the flipping mechanism (4), and a gripping and lateral movement mechanism (5) on one side of the flipping mechanism (4) for gripping and placing the products on the flipping mechanism (4) onto the inspection production line; There are two gripping and translation mechanisms (3), which correspond to two feeding and conveying mechanisms (1) and are used to alternately grip and place the products on the two feeding and conveying mechanisms (1) into the flipping mechanism (4); The back of the translation plate (301) in the gripping translation mechanism (3) slides against the slide rail (203) on the gantry frame (2) via a slider. The gantry frame (2) is provided with a left translation drive mechanism (201) and a right translation drive mechanism (202) on both sides to drive the two gripping translation mechanisms (3) to move respectively.

2. The feeding mechanism for appearance inspection according to claim 1, characterized in that: The left translation drive mechanism (201) and the right translation drive mechanism (202) are synchronous belt drive mechanisms. The two ends of the synchronous belt rotate against the gantry (2) through the synchronous belt pulleys. The back of the translation plate (301) is fixed on the synchronous belt. The synchronous belt pulleys are driven by the motor to rotate, thereby causing the synchronous belt to pull the translation plate (301) to move back and forth.

3. The feeding mechanism for appearance inspection according to claim 1, characterized in that: The translation plate (301) is provided with a sliding first sliding frame (303), the bottom of the first sliding frame (303) is fixed with a first fixed plate (305), the first fixed plate (305) is provided with sliding movable gripping seats (307) on both sides, and a fixed gripping seat (308) is fixed in the middle. Both the movable gripping seat (307) and the fixed gripping seat (308) are provided with two relatively sliding first gripping plates (311).

4. The feeding mechanism for appearance inspection according to claim 3, characterized in that: A gripping drive mechanism (302) is provided between one side of the translation plate (301) and the first sliding frame (303), and a first slider frame (304) is provided on the other side. The first slider frame (304) is fixed on the translation plate (301), and the first sliding frame (303) is connected to the first slider frame (304) through a slide rail and a slider. The gripping drive mechanism (302) is a lead screw drive mechanism. The two ends of the lead screw are abutted against the gripping drive mechanism (302) and rotate. One end of the lead screw is connected to a servo motor. The back of the first sliding frame (303) is connected to the lead screw through a threaded sleeve. The servo motor drives the lead screw to rotate, thereby driving the threaded sleeve and the first sliding frame (303) to move up and down.

5. The feeding mechanism for appearance inspection according to claim 3, characterized in that: The first fixed plate (305) is provided with a first drive unit (312) in the middle. The two ends of the first drive unit (312) are connected to a two-way lead screw (313). The end of the two-way lead screw (313) rotates against the end of the first fixed plate (305) through a bearing seat. The bottom of the movable gripper (307) is connected to the bidirectional lead screw (313) via a threaded sleeve, and the two sides of the movable gripper (307) are connected to the first fixed plate (305) via the first guide rail (306) and the slider; Both the movable gripper (307) and the fixed gripper (308) are provided with a first floating seat plate (309) at the bottom. The first floating seat plate (309) is connected to the movable gripper (307) and the fixed gripper (308) around its perimeter through a first shock absorber (314). A bidirectional cylinder (310) is fixed on the first floating seat plate (309), and the first gripping plates (311) are located at both ends of the bidirectional cylinder (310). The two first gripping plates (311) are driven to move relative to each other by the bidirectional cylinder (310).

6. The feeding mechanism for appearance inspection according to claim 1, characterized in that: it flips over. The mechanism (4) has a second sliding frame (403) on the flip mounting frame (401), and multiple flip units (404) on the second sliding frame (403). The second sliding frame (403) is provided with a second drive unit (405) at its end. The second drive unit (405) drives multiple flipping units (404) to operate synchronously through a drive link (407) and a commutator (406). The bottom sides of the second sliding frame (403) are connected to the flip mounting frame (401) via sliders and the second guide rail (402), and the middle part of the second sliding frame (403) is connected to the flip mounting frame (401) via a sliding drive cylinder (410).

7. The feeding mechanism for appearance inspection according to claim 6, characterized in that: it flips... The two ends of the rotating shaft (4046) in the unit (404) are abutted against the second sliding frame (403) and rotate through the bearing seats (4041). A flip seat (4042) is fixed on one side of the rotating shaft (4046), and a support plate (4044) is fixed on the bottom of the outer side of the flip seat (4042). The flip seat (4042) is provided with relatively movable second gripping plates (4043) on both sides. The flipping seat (4042) is equipped with a second bidirectional cylinder (4045), and the second gripping plates (4043) are located at both ends of the second bidirectional cylinder (4045). The two second gripping plates (4043) are driven to move relative to each other by the second bidirectional cylinder (4045).

8. The feeding mechanism for appearance inspection according to claim 6, characterized in that: it flips... A monitoring frame (408) is fixed behind the mounting frame (401). Multiple monitors (409) are provided on the monitoring frame (408). The multiple monitors (409) face the flipping unit (404) and are used to monitor the product gripping and flipping status.

9. The feeding mechanism for appearance inspection according to claim 1, characterized in that: The transverse mounting frame (501) in the grasping transverse mechanism (5) is provided with a sliding transverse plate (504), and a connecting plate (510) is fixed on one side of the middle part of the transverse plate (504). The connecting plate (510) is provided with a sliding third sliding frame (507), and a second fixing plate (508) is fixed at the bottom of the third sliding frame (507). The second fixing plate (508) is provided with multiple gripping units (509). One side of the transverse plate (504) is connected to the transverse mounting bracket (501) via the transverse drive mechanism (503), and the other side is connected to the transverse mounting bracket (501) via the third guide rail (502) and the slider; The third sliding frame (507) is connected to the connecting plate (510) on one side via a vertical drive mechanism (505), and to the connecting plate (510) on the other side via a slider and a slide rail. The slider is fixedly connected to the third sliding frame (507) via a second slider frame (506). The transverse drive mechanism (503) and the vertical drive mechanism (505) are screw drive mechanisms. The two ends of the screw are rotated by bearings against the gripping transverse drive mechanism (503) and the vertical drive mechanism (505). One end of the screw is connected to a servo motor. The back of the transverse plate (504) and the third sliding frame (507) are connected to the screw by a screw sleeve.

10. The feeding mechanism for appearance inspection according to claim 9, characterized in that: The second floating seat plate (5091) in the gripping unit (509) is connected to the second fixed plate (508) around its perimeter by multiple second shock absorbers (5095). A third bidirectional cylinder (5092) is fixedly installed at the bottom of the second floating seat plate (5091). The two ends of the third bidirectional cylinder (5092) are provided with relatively movable mounting plates (5093). A third gripping plate (5094) is fixedly installed on both sides of the bottom of the mounting plate (5093).

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