Defective product automatic detection device and production line

By designing an automatic defect detection device, which uses metal sensors and vacuum suction cups to automatically detect and pick up aluminum foil tape residue, the problem of missed detections due to manual defect detection is solved, production efficiency and accuracy are improved, and costs are reduced.

CN224222028UActive Publication Date: 2026-05-12KUNSHAN SOMEWAY FINE MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN SOMEWAY FINE MATERIAL CO LTD
Filing Date
2025-03-27
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In existing technologies, auxiliary materials are prone to being missed during the production process due to manual inspection of defective products, leading to customer complaints, increased rework costs, and reduced production efficiency.

Method used

Design an automatic defective product detection device, including a detection unit and a gripping unit. The device uses a metal sensor to detect aluminum foil tape residue, and a controller to stop the conveying equipment and use a vacuum suction cup to automatically grip the defective products, thereby achieving automated detection and rejection.

Benefits of technology

It improves the accuracy and efficiency of testing, reduces missed detections and manual intervention, enhances production efficiency, ensures product quality, reduces rework, and lowers production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an automatic defective product detection device and a production line, the automatic defective product detection device comprises a detection unit and a grabbing unit, the detection unit comprises a mounting rack, the mounting rack is provided with at least one through groove, and at least one metal inductor is mounted in the through groove; the grabbing unit comprises a rotary driving source arranged on one side of the mounting frame, a first telescopic driving source is mounted on the rotary driving source, a second telescopic driving source is mounted at the output end of the first telescopic driving source, a vacuum suction cup is mounted at the output end of the second telescopic driving source, and the vacuum suction cup is connected with a vacuum generator. According to the automatic detection device, the metal inductor is arranged to detect whether aluminum foil adhesive tapes remain on passing products or not, the controller and the grabbing unit are matched to achieve automatic grabbing of the defective products after the defective products are inducted, compared with manual detection, the automatic detection device has higher efficiency and accuracy, missing detection is not prone to occurring, and the production efficiency is improved. Therefore, the final quality of products can be ensured, repair is reduced, and production benefits are improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of automatic detection devices for defective electronic products, and in particular to an automatic detection device and production line for defective products. Background Technology

[0002] Electronic products such as laptops often use various shapes of cushioning pads or sealing gaskets and other auxiliary materials. The production process of these auxiliary materials involves joining multiple rolls of material together and continuously forming the joined raw materials through a die-cutting device.

[0003] When the rolls of material are joined together, aluminum foil tape is used to connect and fix the ends of the raw materials. During the forming process, aluminum foil tape will remain on the product formed from the area of ​​the raw material near the adhesive. During the production process, it is necessary to detect these products with residual aluminum foil tape in a timely manner.

[0004] Currently, these defective products are mostly detected manually, which easily leads to missed detections, causing customer complaints, increasing rework costs, and reducing production efficiency. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the problem that in the production process of auxiliary materials, multiple rolls of material are involved in the process of joining them. When joining the rolls, aluminum foil tape is used to connect and fix the ends of the raw materials. During the forming process, aluminum foil tape will remain on the product formed near the adhesive position of the raw materials. During the production process, it is necessary to detect these products with residual aluminum foil tape in a timely manner. At present, these defective products are mostly detected manually, which is easy to miss, causing customer complaints, increasing rework costs, and reducing production efficiency.

[0006] To solve the above-mentioned technical problems, this utility model provides an automatic defective product detection device for detecting and removing defective auxiliary materials formed onto a support conveyor belt. The support conveyor belt is driven by a conveyor system and includes...

[0007] The detection unit includes a mounting frame and a metal sensor. The mounting frame is horizontally positioned below the bottom material strip. The mounting frame has at least one through groove extending along the width direction of the bottom material strip. At least one metal sensor is installed in the through groove.

[0008] The gripping unit includes a rotary drive source, which is horizontally disposed on one side of the mounting frame. A first telescopic drive source is horizontally mounted on the rotary drive source. A second telescopic drive source is vertically mounted on the output end of the first telescopic drive source. A vacuum suction cup is mounted on the output end of the second telescopic drive source. The vacuum suction cup is connected to a vacuum generator.

[0009] In one embodiment of this utility model, a controller is included, which is connected to the metal sensor, the rotary drive source, the first telescopic drive source, the second telescopic drive source, the vacuum generator, and the conveying device.

[0010] In one embodiment of this utility model, an infrared proximity switch is further included, which is disposed below the bottom material strip and is connected to the controller.

[0011] In one embodiment of this utility model, the output end of the rotary drive source is connected to a mounting base, on which the first telescopic drive source and a vacuum generator are respectively mounted. The output end of the first telescopic drive source is connected to a mounting plate, and the second telescopic drive source is connected to the mounting plate. The output end of the second telescopic drive source is vertically downward, and a horizontal connecting base is mounted on the output end of the second telescopic drive source. At least two vacuum suction cups arranged at intervals along their length direction are connected to the connecting base.

[0012] In one embodiment of this utility model, the connecting seat is provided with an internal cavity, and the connecting seat is provided with a first connecting hole and a second connecting hole respectively communicating with the cavity. The vacuum suction cup is connected to the first connecting hole, and the vacuum generator is connected to the second connecting hole through a connecting pipe.

[0013] In one embodiment of the present invention, the mounting bracket includes a main body and a connecting part. Both the main body and the connecting part are rectangular plate structures. The main body has at least one through groove extending along its length direction. There are two connecting parts, which are respectively perpendicularly connected to the two ends of the main body. Each connecting part has at least one waist-shaped hole perpendicular to the main body.

[0014] In one embodiment of this utility model, the metal sensor includes a sensor body, on which external threads are provided and two nuts are screwed.

[0015] In one embodiment of this utility model, the metal sensor is a metal proximity switch.

[0016] In one embodiment of this utility model, the rotary drive source is an automatic turntable, and both the first telescopic drive source and the second telescopic drive source are telescopic cylinders.

[0017] A production line includes an automatic defect detection device as described in any of the above.

[0018] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0019] This utility model discloses an automatic defective product detection device and production line, comprising a detection unit and a gripping unit. The detection unit includes a mounting frame with at least one through slot, in which at least one metal sensor is installed. The gripping unit includes a rotary drive source disposed on one side of the mounting frame, a first telescopic drive source mounted on the rotary drive source, a second telescopic drive source mounted at the output end of the first telescopic drive source, and a vacuum suction cup mounted at the output end of the second telescopic drive source, connected to a vacuum generator. This automatic defective product detection device uses a metal sensor located below the movement path of the auxiliary material to detect whether aluminum foil tape remains on the passing product. Upon detecting a defective product, the controller stops the conveyor, and the gripping unit automatically grips and collects the detected defective product. This significantly improves the automation level of the entire equipment and offers higher efficiency and accuracy compared to manual detection, reducing the likelihood of missed detections, thus ensuring the final product quality, reducing rework, and improving production efficiency. Attached Figure Description

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Figure 1 This is a perspective view of the automatic defective product detection device according to a preferred embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the detection unit of the automatic defective product detection device according to a preferred embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the mounting frame of the automatic defective product detection device according to a preferred embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the gripping unit of the automatic defective product detection device according to a preferred embodiment of the present invention.

[0025] Explanation of reference numerals in the accompanying drawings: 1. Detection unit; 11. Mounting bracket; 111. Through slot; 112. Waist-shaped hole; 12. Metal sensor; 2. Gripping unit; 21. Rotation drive source; 22. First telescopic drive source; 23. Second telescopic drive source; 24. Vacuum suction cup; 25. Vacuum generator; 26. Mounting base; 27. Mounting plate; 28. Connecting base. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention. Example 1

[0027] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses an automatic defective product detection device, used for detecting and removing defective auxiliary materials formed onto a support conveyor belt. The support conveyor belt is driven by a conveyor system and includes...

[0028] The detection unit 1 includes a mounting frame 11 and a metal sensor 12. The mounting frame 11 is horizontally arranged below the bottom material strip. The mounting frame 11 has at least one through groove 111 extending along the width direction of the bottom material strip. At least one metal sensor 12 is installed in the through groove 111.

[0029] The gripping unit 2 includes a rotary drive source 21, which is horizontally positioned on one side of the mounting bracket 11. A first telescopic drive source 22 is horizontally mounted on the rotary drive source 21. A second telescopic drive source 23 is vertically mounted on the output end of the first telescopic drive source 22. A vacuum suction cup 24 is mounted on the output end of the second telescopic drive source 23. The vacuum suction cup 24 is connected to a vacuum generator 25.

[0030] Specifically, the bottom support belt carries the formed auxiliary material products forward horizontally under the drive of the conveying equipment. The mounting frame 11 is installed on the frame of the conveying device by fasteners and is located below the bottom support belt. The mounting frame 11 extends along the width direction of the bottom support belt and is provided with a through groove 111 extending along its length direction. The metal sensor 12 is installed in the through groove 111 and can be adjusted in position along the through groove 111 to correspond to the movement path of the auxiliary material products on the bottom support belt.

[0031] Specifically, a mounting platform is provided on the side of the conveyor frame, and the rotary drive source 21 is horizontally mounted on the mounting platform. In the initial state, the output end of the first telescopic drive source 22 is perpendicular to the movement direction of the bottom material belt, and the telescopic shaft of the first telescopic drive source 22 is in a retracted state. When the metal sensor 12 senses that a product with residual aluminum foil tape has passed by, it sends a signal to the controller. The controller controls the conveyor to stop running and causes the telescopic shaft of the first telescopic drive source 22 to extend, driving the second telescopic drive source 23 to move directly above the bottom material belt. Then, the telescopic shaft of the second telescopic drive source 23 extends and sucks up the target product (defective product) through the vacuum suction cup 24. Then, the telescopic shaft of the second telescopic drive source 23 retracts, and at the same time, the rotary drive source 21 rotates 90 degrees, so that the second telescopic drive source 23 rotates to the front of the defective product collection box (set on the placement platform on the side of the conveyor frame). After rotating into position, the controller controls the vacuum suction cup 24 to release the defective product into the collection box below. The rotary drive source 21 resets, and the first telescopic drive source 22 resets, and the conveyor restarts.

[0032] This utility model discloses an automatic defective product detection device. A metal sensor 12 is installed below the movement path of auxiliary materials. The metal sensor 12 detects whether aluminum foil tape remains on the auxiliary materials passing through sequentially. Upon detecting a defective product, the controller, in conjunction with the sensor, stops the conveyor. Simultaneously, a gripping unit 2 located on one side automatically grips and collects the detected defective product. This significantly improves the automation level of the entire device and offers higher efficiency and accuracy compared to manual detection, reducing the likelihood of missed detections. This ensures the final product quality, reduces rework, and improves production efficiency. The entire automatic detection device has a simple structure, is easy to install and use, and is highly practical.

[0033] Furthermore, it includes a controller, which is connected to a metal sensor 12, a rotary drive source 21, a first telescopic drive source 22, a second telescopic drive source 23, a vacuum generator 25, and a conveying device.

[0034] Furthermore, it also includes an infrared proximity switch, which is located below the bottom material conveyor belt and connected to the controller. Specifically, the infrared proximity switch is located at the front end of the detection unit 1 (on the side of the incoming material). When production begins, the product moves with the bottom material conveyor belt. When the product moves above the infrared proximity switch and is detected, the controller controls the metal sensor 12 and the components of the gripping unit 2 to operate. When a batch of products is produced and the infrared proximity switch does not detect any products passing by within a predetermined time period, the controller controls the metal sensor 12 and the components of the gripping unit 2 to enter a dormant state until the infrared proximity switch detects the next batch of products passing by. This saves energy consumption and can improve production efficiency to a certain extent.

[0035] Reference Figure 4 As shown, further, the output end of the rotary drive source 21 is connected to a mounting base 26. A first telescopic drive source 22 and a vacuum generator 25 are respectively mounted on the mounting base 26. The output end of the first telescopic drive source 22 is connected to a mounting plate 27. A second telescopic drive source 23 is connected to the mounting plate 27. The output end of the second telescopic drive source 23 is vertically downward, and a horizontal connecting base 28 is mounted on the output end of the second telescopic drive source 23. At least two vacuum suction cups 24, spaced apart along their length, are connected to the connecting base 28. The number and spacing of the vacuum suction cups 24 on the connecting base 28 can be set according to actual needs.

[0036] Furthermore, the connecting seat 28 has an internal cavity, and a first connecting hole and a second connecting hole are respectively opened on the connecting seat 28 to communicate with the cavity. A vacuum suction cup 24 is connected to the first connecting hole, and a vacuum generator 25 is connected to the second connecting hole through a connecting pipe. The second telescopic drive source 23, together with the vacuum suction cup 24 and the vacuum generator 25, forms a vacuum gripper capable of gripping the target product. Specifically, multiple connecting seats 28 with different sizes and multiple vacuum suction cups 24 arranged in different positions can be provided, so that they can be replaced according to the size and shape of different products to be gripped, thereby improving the versatility of the entire device.

[0037] Furthermore, the mounting frame 11 includes a main body and connecting parts, both of which are rectangular plate structures. The main body has at least one through groove 111 extending along its length. Two connecting parts are provided and are perpendicularly connected to both ends of the main body, each with at least one oblong hole 112 perpendicular to the main body. Specifically, the mounting frame 11 is bolted to the frame of the conveying equipment, and the height of the mounting frame 11 can be adjusted within a certain range by adjusting the position of the bolts in the oblong holes.

[0038] Furthermore, the metal sensor 12 includes a sensor body with external threads and two nuts screwed onto it. Specifically, first, a nut is screwed onto the sensor body, and then the sensor body is inserted into the through slot 111 on the mounting bracket 11, with the screwed nut positioned above the main body of the mounting bracket 11. Then, a second nut, positioned below the main body, is screwed onto the sensor body. By tightening the two nuts, the main body is clamped between them, thus fixing the metal sensor 12. It is conceivable that by adjusting the screwing height of the nuts, the height of the sensing end of the metal sensor 12 can also be adjusted to meet different usage requirements.

[0039] Furthermore, the metal sensor 12 employs a metal proximity switch. Specifically, some auxiliary products are formed by stacking multiple layers of material. At the joints of the raw materials for these products, there may be aluminum foil tape located between two layers of material. Therefore, using the metal sensor 12 can prevent the missed detection of defective products in these cases.

[0040] Furthermore, the rotary drive source 21 adopts an automatic turntable, and the first telescopic drive source 22 and the second telescopic drive source 23 both adopt telescopic cylinders. Example 2

[0041] This utility model also discloses a production line, including an automatic defective product detection device as described in Embodiment 1.

[0042] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An automatic defective product detection device, used to detect and remove defective auxiliary materials formed onto a support conveyor belt, wherein the support conveyor belt is driven by a conveyor system, characterized in that: include, The detection unit includes a mounting frame and a metal sensor. The mounting frame is horizontally positioned below the bottom material strip. The mounting frame has at least one through groove extending along the width direction of the bottom material strip. At least one metal sensor is installed in the through groove. The gripping unit includes a rotary drive source, which is horizontally disposed on one side of the mounting frame. A first telescopic drive source is horizontally mounted on the rotary drive source. A second telescopic drive source is vertically mounted on the output end of the first telescopic drive source. A vacuum suction cup is mounted on the output end of the second telescopic drive source. The vacuum suction cup is connected to a vacuum generator.

2. The automatic defective product detection device according to claim 1, characterized in that: It includes a controller, which is connected to the metal sensor, the rotary drive source, the first telescopic drive source, the second telescopic drive source, the vacuum generator, and the conveying equipment.

3. The automatic defective product detection device according to claim 2, characterized in that: It also includes an infrared proximity switch, which is located below the bottom material belt and is connected to the controller.

4. The automatic defective product detection device according to claim 1, characterized in that: The output end of the rotary drive source is connected to a mounting base, on which the first telescopic drive source and a vacuum generator are respectively mounted. The output end of the first telescopic drive source is connected to a mounting plate, on which the second telescopic drive source is connected. The output end of the second telescopic drive source is vertically downward, and a horizontal connecting base is mounted on the output end of the second telescopic drive source. At least two vacuum suction cups arranged at intervals along their length direction are connected to the connecting base.

5. The automatic defective product detection device according to claim 4, characterized in that: The connector has an internal cavity, and the connector has a first connecting hole and a second connecting hole that are respectively connected to the cavity. The vacuum suction cup is connected to the first connecting hole, and the vacuum generator is connected to the second connecting hole through a connecting pipe.

6. The automatic defective product detection device according to claim 1, characterized in that: The mounting bracket includes a main body and a connecting part. Both the main body and the connecting part are rectangular plate structures. The main body has at least one through groove extending along its length. There are two connecting parts, which are respectively perpendicular to the two ends of the main body. Each connecting part has at least one waist-shaped hole perpendicular to the main body.

7. The automatic defective product detection device according to claim 1, characterized in that: The metal sensor includes a sensor body, on which external threads are provided and two nuts are screwed.

8. The automatic defective product detection device according to claim 1, characterized in that: The metal sensor is a metal proximity switch.

9. The automatic defective product detection device according to claim 1, characterized in that: The rotary drive source is an automatic turntable, and both the first telescopic drive source and the second telescopic drive source are telescopic cylinders.

10. A production line, characterized in that: Includes the automatic defective product detection device as described in any one of claims 1-9.