A waste removing device of a lamp inspection machine

By designing a limiting component on the feeding tray to work in conjunction with the conveyor belt, continuous rotational rejection of containers in the light inspection machine is achieved, solving the problems of low efficiency and container damage in the existing technology, and improving production efficiency and product integrity.

CN224389368UActive Publication Date: 2026-06-23SUZHOU SUHAO BIOLOGICAL MATERIALS SCI & TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU SUHAO BIOLOGICAL MATERIALS SCI & TECH CO LTD
Filing Date
2025-07-21
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing light inspection machines require stopping the feeding tray when rejecting unqualified containers, which reduces efficiency and the mechanical grippers are prone to damaging the containers.

Method used

Design a rejection device for a light inspection machine. It uses a limiting component on the feeding tray and a conveyor belt to achieve continuous rotation rejection of containers, avoiding machine downtime, and achieves non-destructive rejection through the friction between the conveyor belt and the container.

Benefits of technology

This ensures the continuity of the container feeding and light inspection process, improves production efficiency, reduces the probability of container damage, and ensures product integrity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to lamp inspection machine technical field especially relates to a kind of lamp inspection machine rejects device, including base, the top of base is provided with rotatable feeding tray, multiple slots are opened with the center of the axis in the lateral wall of feeding tray in ring array, limit component is installed in each slot, the left end, right end and front end of base top are all set up mounting groove, the mounting groove in the left end of base is provided with feeding mechanism, the mounting groove in the right end of base is provided with first discharging mechanism, the mounting groove in the front end of base is provided with second discharging mechanism, the rear end of base top is fixedly installed with appearance foreign matter detector, the utility model can be in the state of not stopping, the unqualified container is removed, and the removal mode cannot cause damage to container, to improve production efficiency and product quality.
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Description

Technical Field

[0001] This utility model relates to the field of light inspection machine technology, and in particular to a reject device for light inspection machines. Background Technology

[0002] In the production process of pharmaceuticals, food and other industries, the appearance quality inspection of containers (such as glass bottles, plastic bottles and so on) is a crucial step. As a device specifically designed to detect whether there are defects in the appearance of containers, the light inspection machine plays a key role in this process.

[0003] In the prior art, after visual inspection and foreign object detection of containers, the light inspection machine will remove the unqualified containers from the feeding tray of the device. However, the common rejection method requires stopping the operation of the feeding tray, which reduces the efficiency of container feeding and light inspection. In addition, the common rejection method uses mechanical claws to grip the containers, which can easily damage the containers during the gripping process. Therefore, this application proposes a rejection device for light inspection machines. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a reject device for a light inspection machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a light inspection machine rejecting device includes a base, a rotatable feeding tray is provided on the top of the base, and multiple slots are arranged in a circular array around the central axis on the side wall of the feeding tray. Each slot is equipped with a limit component. Mounting slots are provided at the left, right and front ends of the top of the base. A feeding mechanism is provided in the mounting slot at the left end of the base, a first unloading mechanism is provided in the mounting slot at the right end of the base, a second unloading mechanism is provided in the mounting slot at the front end of the base, and an external foreign object detector is fixedly installed at the rear end of the top of the base.

[0006] Optionally, the feeding mechanism includes a conveyor table, a conveyor belt, and a drive motor. The conveyor table is installed in the mounting groove at the top left end of the base, and the left end of the conveyor table is located outside the mounting groove. A conveying groove is opened at the top of the conveyor table, and a bottom groove is opened at the bottom of the conveying groove. The conveyor belt is installed in the bottom groove. The drive motor is installed on the side of the left end of the conveyor table, and the output end of the drive motor is connected to the rotating shaft at the left end of the conveyor belt. A notch is opened at the right end of the conveyor table, and the bottom of the notch at the right end of the conveyor table is located at the bottom of the feeding tray, and the side wall of the notch is in contact with the side wall of the feeding tray.

[0007] Optionally, the top of the conveyor table is flush with the top of the feeding tray, the bottom of the conveyor trough is flush with the top of the base, the width of the bottom trough is greater than the width of the conveyor trough, and the top of the conveyor belt is flush with the top of the base.

[0008] Optionally, the feeding mechanism, the first unloading mechanism, and the second unloading mechanism have the same structure. In the feeding mechanism, the distance between the inner walls of the right end of the conveying trough gradually decreases from left to right, and the opening at the right end of the conveying trough is adapted to the size of the trough opening. In the first unloading mechanism and the second unloading mechanism, the conveying trough is adapted to the size of the trough opening.

[0009] Optionally, the limiting assembly includes a limiting block, a spring, a top rod, a hydraulic rod, a connecting ring, and a connecting rod. First grooves are formed on both sides of the inner wall of the slot. Limiting blocks are installed in both first grooves. The ends of the two limiting blocks near the slot are arc-shaped. Two springs are fixedly connected between the limiting blocks and the first grooves. Rod slots are formed on the top of the feeding disc and on both sides of each slot. A through hole is formed between each first groove and the corresponding rod slot. A top rod is fixedly connected to the inner end of each limiting block through the through hole and extending into the rod slot. A connecting rod is movably inserted into each rod slot. A second groove is formed on the top of the feeding disc and on the side of each slot near the center of the feeding disc. A hydraulic rod is installed in each second groove. A semi-circular connecting ring is fixedly installed at the telescopic end of the hydraulic rod. The two ends of the connecting ring are fixedly connected to the top ends of the corresponding two connecting rods. The top end of the top rod in the rod slot is set as a slope one, and the bottom end of the connecting rod is set as a slope two that fits against the slope one at the end of the top rod.

[0010] Optionally, the top of the base is provided with an annular groove, and the bottom of the feeding tray is fixedly installed with a fixing ring located in the annular groove. The side wall of the fixing ring is provided with multiple openings at equal intervals, and a rotatable roller is installed in each opening. Both sides of each roller extend out of the opening and contact the inner wall of the annular groove. The bottom of the fixing ring is provided with multiple ball grooves at equal intervals, and a rotatable ball is provided in each ball groove. The bottom end of each ball extends out of the ball groove and contacts the bottom of the annular groove.

[0011] Optionally, a storage slot is provided at the center of the top of the base, and a servo motor is installed in the storage slot. The output end of the servo motor is fixedly connected to the center of the bottom of the feeding tray.

[0012] The beneficial effects of this utility model are:

[0013] The continuous rotation of the feeding tray, combined with the limiting components at each slot, restricts the container in the slot when it is defective. This prevents the container from being transported away by the conveyor belt in the first feeding mechanism. After passing the first feeding mechanism, the limiting components reset. When the container reaches the second feeding mechanism, the defective container will be transported away by the conveyor belt in the second feeding mechanism. This eliminates the need to stop the device during rejection, ensuring the continuity of the container feeding and light inspection process. It effectively avoids the efficiency reduction caused by stopping the machine to reject defective containers, significantly improving overall production efficiency.

[0014] Instead of the traditional mechanical gripper method of rejection, the friction generated when the conveyor belt contacts the bottom of the container causes the container to detach from the slot on the side wall of the feeding tray. This avoids direct mechanical contact and squeezing of the container during the rejection process, reduces the probability of damage to the container in the rejection stage, and helps to ensure the integrity of the product.

[0015] The limiting assembly achieves precise constraint on the contents of the slot through the coordinated action of the limiting blocks, springs, and hydraulic rods: when the telescopic end of the hydraulic rod drives the connecting ring to move downward, the connecting rods at both ends of the connecting ring move downward synchronously in the rod groove. The second inclined surface at the bottom of the connecting ring and the first inclined surface at the end of the top rod exert a squeezing effect. This squeezing is transmitted through the top rod, pushing the limiting blocks to move outward of the first groove, so that the arc ends of the two limiting blocks extend into the slot. At this time, when the container in the slot rotates to the position of the first feeding mechanism, the arc ends of the two limiting blocks form a blocking structure, effectively preventing the container from being carried away by the conveyor belt of the first feeding mechanism, thereby achieving the function of locking and constraining the position of a specific container. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram showing the connection between the base and the feeding mechanism, the first unloading mechanism, and the second unloading mechanism of this utility model.

[0019] Figure 3 This is a schematic diagram of the feeding mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the bottom of the feeding tray of this utility model;

[0021] Figure 5 This is a cross-sectional structural diagram of the connection between the feeding tray and the limiting component of this utility model;

[0022] Figure 6 This is an enlarged structural diagram of point A in this utility model;

[0023] Figure 7 This is a cross-sectional structural diagram of the fixing ring of this utility model;

[0024] Figure 8 This is a schematic diagram of the connection between the connecting rod and the connecting ring of this utility model;

[0025] In the diagram: 1. Base; 11. Annular groove; 12. Storage groove; 13. Servo motor; 2. Feeding tray; 21. Groove opening; 22. Limiting component; 221. First groove; 222. Limiting block; 223. Spring; 224. Top rod; 225. Rod groove; 226. Hydraulic rod; 227. Connecting ring; 228. Connecting rod; 23. Fixing ring; 24. Roller; 25. Ball bearing; 3. Feeding mechanism; 31. Conveying table; 32. Conveying groove; 33. Bottom groove; 34. Conveyor belt; 35. Drive motor; 36. Notch; 4. First unloading mechanism; 5. Second unloading mechanism; 6. Foreign object detector. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] Please see Figures 1-8 This utility model provides a technical solution: a light inspection machine rejecting device, including a base 1, a rotatable feeding tray 2 on the top of the base 1, and multiple slots 21 arranged in a circular array around the central axis on the side wall of the feeding tray 2. Each slot 21 is equipped with a limit component 22. The left, right and front ends of the top of the base 1 are provided with mounting slots. A feeding mechanism 3 is provided in the mounting slot at the left end of the base 1, a first unloading mechanism 4 is provided in the mounting slot at the right end of the base 1, and a second unloading mechanism 5 is provided in the mounting slot at the front end of the base 1. An external foreign object detector 6 is fixedly installed at the rear end of the top of the base 1. The detector illuminates the surface of the container with a light source and uses a camera or sensor to detect foreign objects. The device captures images of the container and analyzes them using image processing algorithms to detect defects such as foreign objects, cracks, and damage on the container surface. The feeding mechanism 3 can transport the container to be inspected into the slot 21 on the side wall of the feeding tray 2. The first unloading mechanism 4 and the second unloading mechanism 5 can transport the inspected container out of the slot 21. The appearance foreign object detector 6, through the coordinated work of the feeding mechanism 3, the first unloading mechanism 4, the second unloading mechanism 5, the feeding tray 2, and the appearance foreign object detector 6, realizes the entire process operation from container feeding, inspection to qualified and unqualified, and container classification and unloading, reducing manual intervention and improving production efficiency.

[0028] like Figure 2 and Figure 3As shown, the feeding mechanism 3 includes a conveyor platform 31, a conveyor belt 34, and a drive motor 35. The conveyor platform 31 is installed in the mounting groove at the top left end of the base 1, and the left end of the conveyor platform 31 is located outside the mounting groove. A conveying groove 32 is opened at the top of the conveyor platform 31, and a bottom groove 33 is opened at the bottom of the conveying groove 32. The conveyor belt 34 is installed in the bottom groove 33. The drive motor 35 is installed on the side of the left end of the conveyor platform 31, and the output end of the drive motor 35 is connected to the rotating shaft at the left end of the conveyor belt 34. A notch 36 is opened at the right end of the conveyor platform 31. The bottom of the notch 36 at the right end of the conveyor platform 31 is located at the bottom of the feeding tray 2, and the side wall of the notch 36 is in contact with the side wall of the feeding tray 2. Through the cooperation of the conveyor platform 31 and the conveyor belt 34, the container can be conveyed into the groove 21 on the side wall of the feeding tray 2. The drive motor 35 can provide power for the operation of the conveyor belt 34, ensuring the continuity and stability of feeding.

[0029] like Figure 3 As shown, the top of the conveyor 31 is flush with the top of the feeding tray 2, the bottom of the conveying trough 32 is flush with the top of the base 1, the width of the bottom trough 33 is greater than the width of the conveying trough 32, and the top of the conveyor belt 34 is flush with the top of the base 1. The height matching design of each component avoids jamming or positional deviation during container conveying and ensures feeding accuracy.

[0030] like Figure 1 and Figure 2 As shown, the feeding mechanism 3, the first unloading mechanism 4, and the second unloading mechanism 5 have the same structure. The distance between the inner walls of the right end of the conveying trough 32 in the feeding mechanism 3 gradually decreases from left to right, and the opening at the right end of the conveying trough 32 is adapted to the size of the slot 21. The conveying trough 32 in the first unloading mechanism 4 and the second unloading mechanism 5 is adapted to the size of the slot 21. The tapered design of the conveying trough 32 in the feeding mechanism 3 facilitates the introduction of containers into the slot 21. The conveying trough 32 in the first unloading mechanism 4 and the second unloading mechanism 5 precisely connects to the slot 21, realizing the classification and rejection of qualified and unqualified containers.

[0031] like Figure 5 and Figure 6As shown, the limiting assembly 22 includes a limiting block 222, a spring 223, a push rod 224, a hydraulic rod 226, a connecting ring 227, and a connecting rod 228. First grooves 221 are formed on both sides of the inner wall of the slot 21. A limiting block 222 is installed in each of the two first grooves 221. The end of each limiting block 222 near the slot 21 is rounded. Two springs 223 are fixedly connected between the limiting block 222 and the first groove 221. Rod grooves 225 are formed on the top of the feeding disc 2 on both sides of each slot 21. A through hole is formed between each first groove 221 and the corresponding rod groove 225. A push rod 224 is fixedly connected to the inner end of each limiting block 222, extending through the through hole into the rod groove 225. A connecting rod 228 is movably inserted into each rod groove 225. A second groove is formed on the top of the feeding disc 2 on the side of each slot 21 near the center of the feeding disc 2. Hydraulic rods 226 are installed in each of the second grooves. A semi-circular connecting ring 227 is fixedly installed at the telescopic end of the hydraulic rod 226. The two ends of the connecting ring 227 are fixedly connected to the top ends of the corresponding two connecting rods 228. The top end of the push rod 224 located in the rod groove 225 is set as a first inclined surface, and the bottom end of the connecting rod 228 is set as a second inclined surface that fits with the first inclined surface of the top rod 224. The hydraulic rod 226 in the limiting assembly 22 drives the connecting ring 227 to move down, so that the connecting rod 228 moves down in the rod groove 225 and squeezes the push rod 224. The push rod 224 is squeezed and pushes the limiting block 222 to move out of the first groove 221, and stretches the spring 223 between the two. The arc end of the limiting block 222 extends into the groove 21 and can block the container. Under the blocking of the two limiting blocks 222, the container inside the groove 21 will not be carried away by the conveyor belt 34 when it passes through the first feeding mechanism 4, thus constraining the container.

[0032] like Figure 2 , Figure 4 and Figure 7 As shown, the top of the base 1 has an annular groove 11, and the bottom of the feeding tray 2 is fixedly installed with a fixing ring 23 located in the annular groove 11. The side wall of the fixing ring 23 has multiple openings at equal intervals, and a rotatable roller 24 is installed in each opening. Both sides of each roller 24 extend out of the opening and contact the inner wall of the annular groove 11. The bottom of the fixing ring 23 has multiple ball grooves at equal intervals, and a rotatable ball 25 is provided in each ball groove. The bottom end of each ball 25 extends out of the ball groove and contacts the bottom of the annular groove 11. The fixing ring 23, together with the roller 24 and the ball 25, can greatly reduce the frictional resistance encountered by the feeding tray 2 when it rotates, ensure smooth rotation, and improve the reliability and life of the device.

[0033] like Figure 2As shown, a storage slot 12 is provided at the center of the top of the base 1. A servo motor 13 is installed in the storage slot 12. The output end of the servo motor 13 is fixedly connected to the center of the bottom of the feeding tray 2. The servo motor 13 can provide power for the rotation of the feeding tray 2 to achieve precise speed and angle control.

[0034] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A reject-removal device for a light inspection machine, comprising a base (1), characterized in that, The top of the base (1) is provided with a rotatable feeding tray (2). Multiple slots (21) are arranged in a circular array around the central axis on the side wall of the feeding tray (2). Each slot (21) is equipped with a limiting component (22). The left, right and front ends of the top of the base (1) are provided with mounting slots. The mounting slot at the left end of the base (1) is provided with a feeding mechanism (3). The mounting slot at the right end of the base (1) is provided with a first unloading mechanism (4). The mounting slot at the front end of the base (1) is provided with a second unloading mechanism (5). The rear end of the top of the base (1) is fixedly installed with an external foreign object detector (6).

2. The reject device for a light inspection machine according to claim 1, characterized in that, The feeding mechanism (3) includes a conveyor table (31), a conveyor belt (34) and a drive motor (35). The conveyor table (31) is installed in the mounting groove at the top left end of the base (1), and the left end of the conveyor table (31) is located outside the mounting groove. A conveying groove (32) is provided on the top of the conveyor table (31), and a bottom groove (33) is provided at the bottom of the conveying groove (32). The conveyor belt (34) is installed in the bottom groove (33). The drive motor (35) is installed on the side of the left end of the conveyor table (31), and the output end of the drive motor (35) is connected to the rotating shaft at the left end of the conveyor belt (34). A notch (36) is provided at the right end of the conveyor table (31). The bottom of the notch (36) at the right end of the conveyor table (31) is located at the bottom of the feeding tray (2), and the side wall of the notch (36) is in contact with the side wall of the feeding tray (2).

3. The reject device for a light inspection machine according to claim 2, characterized in that, The top of the conveyor table (31) is flush with the top of the feeding tray (2), the bottom of the conveying trough (32) is flush with the top of the base (1), the width of the bottom trough (33) is greater than the width of the conveying trough (32), and the top of the conveyor belt (34) is flush with the top of the base (1).

4. The reject device for a light inspection machine according to claim 2, characterized in that, The feeding mechanism (3), the first unloading mechanism (4), and the second unloading mechanism (5) have the same structure. The distance between the inner walls of the right end of the conveying trough (32) in the feeding mechanism (3) gradually decreases from left to right, and the opening at the right end of the conveying trough (32) is adapted to the size of the slot (21). The conveying trough (32) in the first unloading mechanism (4) and the second unloading mechanism (5) are adapted to the size of the slot (21).

5. The reject device for a light inspection machine according to claim 1, characterized in that, The limiting component (22) includes a limiting block (222), a spring (223), a top rod (224), a hydraulic rod (226), a connecting ring (227), and a connecting rod (228). First grooves (221) are provided on both sides of the inner wall of the slot (21). Limiting blocks (222) are installed in both first grooves (221). The ends of the two limiting blocks (222) near the slot (21) are both arc-shaped. Two springs (223) are fixedly connected between the limiting block (222) and the first groove (221). Rod grooves (225) are provided on the top of the feeding disc (2) and on both sides of each slot (21). A through hole is provided between each first groove (221) and the corresponding rod groove (225). Each limiting block (222)... 2) The inner end of each of the rods is fixedly connected with a through hole and extends into the rod groove (225) with a top rod (224). Each rod groove (225) is movably inserted with a connecting rod (228). The top of the feeding plate (2) and the side of each slot (21) near the center of the feeding plate (2) are provided with a second groove. A hydraulic rod (226) is installed in each second groove. A semi-circular connecting ring (227) is fixedly installed at the telescopic end of the hydraulic rod (226). The two ends of the connecting ring (227) are fixedly connected to the top ends of the corresponding two connecting rods (228). The top end of the top rod (224) in the rod groove (225) is set as a slope one. The bottom end of the connecting rod (228) is set as a slope two that fits with the slope one at the end of the top rod (224).

6. The reject device for a light inspection machine according to claim 1, characterized in that, The base (1) has an annular groove (11) at its top. The bottom of the feeding tray (2) is fixedly installed with a fixing ring (23) located in the annular groove (11). The side wall of the fixing ring (23) has multiple openings at equal intervals. A rotatable roller (24) is installed in each opening. Both sides of each roller (24) extend out of the opening and contact the inner wall of the annular groove (11). The bottom of the fixing ring (23) has multiple ball grooves at equal intervals. A rotatable ball (25) is provided in each ball groove. The bottom end of each ball (25) extends out of the ball groove and contacts the bottom of the annular groove (11).

7. The reject device for a light inspection machine according to claim 1, characterized in that, Each base (1) has a storage slot (12) at the center of its top. A servo motor (13) is installed in the storage slot (12). The output end of the servo motor (13) is fixedly connected to the center of the bottom of the feeding tray (2).