Electronic carrier tape surface defect detection device

Abstract

This utility model belongs to the field of industrial automation inspection, specifically an electronic carrier tape surface defect inspection device, including a conveying device; a disc frame is installed on one side of the conveying device; a conveying device is installed on the conveying device; a flow divider is fixedly connected to the bottom of the conveying device; a connecting pipe is fixedly connected to the bottom of the flow divider; a vacuum pump is installed at the end of the connecting pipe; multiple air holes are opened on the surface of the conveying device; a first gantry is fixedly connected to the top of the conveying device; an inspection camera is installed at the bottom of the first gantry; by using the vacuum pump, the flow divider, the connecting pipe and the air holes to form a negative pressure at the bottom of the electronic carrier tape, the bent or warped carrier tape is straightened, so that the carrier tape is kept horizontal under the inspection camera, reducing the problem of the inspection camera failing to focus due to bending or warping, resulting in blurry images, etc., making the images captured by the inspection camera more stable and reducing the occurrence of misjudgments.

Description

Technical Field

[0001] This utility model relates to the field of industrial automation testing, specifically an electronic carrier tape surface defect detection device. Background Technology

[0002] Electronic carrier tape is a strip-shaped product used in the field of electronic packaging. It has a specific thickness and features cavities for holding electronic components and positioning holes for indexing and positioning, evenly distributed along its length. Used in conjunction with cover tape, it carries and stores various electronic components in a pocket, forming a closed package to protect the components from contamination and damage during transportation.

[0003] During the inspection of electronic carrier tape surfaces, the inspection equipment is calibrated to ensure its accuracy and stability meet the inspection requirements. Manual visual inspection or automated vision inspection equipment is used to observe the carrier tape surface for obvious defects. High-precision measuring tools are used to check whether the thickness and width of the carrier tape meet the specifications. The anti-static performance of the carrier tape surface is tested by measuring its surface resistance value using professional instruments to ensure it meets the anti-static requirements of electronic packaging, preventing static electricity from damaging components. The test results are compared with quality standards to determine whether the carrier tape surface quality is qualified.

[0004] When electronic carrier tape is wound on a reel for a long time, it will bend. When it passes through the inspection mechanism, the middle of the electronic carrier tape will lift up, which will require the inspection mechanism to refocus, resulting in blurry images and affecting the accuracy of the inspection. Therefore, an electronic carrier tape surface defect inspection device is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The electronic carrier tape surface defect detection device of this utility model includes a conveying device; a disc frame is installed on one side of the conveying device; a conveying device is installed on the conveying device; a flow divider is fixedly connected to the bottom of the conveying device; a connecting pipe is fixedly connected to the bottom of the flow divider; a vacuum pump is installed at the end of the connecting pipe; multiple air holes are opened on the surface of the conveying device; the air holes are connected to the flow divider; a first gantry is fixedly connected to the top of the conveying device; a detection camera is installed at the bottom of the first gantry; by using the vacuum pump, the flow divider, the connecting pipe and the air holes to form a negative pressure at the bottom of the electronic carrier tape, the bent or warped carrier tape is straightened, so that the carrier tape is kept horizontal under the detection camera, reducing the problem of the detection camera failing to focus due to bending or warping, resulting in blurry images, etc., making the images captured by the detection camera more stable and reducing the occurrence of misjudgments.

[0007] Preferably, the conveying device has a collection port on its surface; a lower cut is fixedly connected to the surface of the conveying device; the lower cut and the collection port are correspondingly arranged; a second gantry is fixedly connected to the top of the conveying device; a cylinder is fixedly connected to the top of the second gantry; an upper cut is fixedly connected to the output end of the cylinder; the cylinder is controlled by a detection camera; after the detection camera identifies the defect, it controls the cylinder, and the defective section of the electronic carrier tape is removed by the shearing action of the lower cut and the cylinder, which can reduce burrs on the cutting edge, increase the flatness of the cutting edge, and reduce the phenomenon of tearing or delamination of the electronic carrier tape. After the detection camera detects the defect, it is directly removed, which can increase the integrity of the process and reduce downtime.

[0008] Preferably, a first limiting rod is slidably connected to one side of the conveying device; the first limiting rod is slidably connected to the disc frame; a support base is slidably connected to one side of the conveying device; a second limiting rod is rotatably connected to the middle of the support base; the second limiting rod is slidably connected to the disc frame. Disassembling and positioning the reel by sliding the first and second limiting rods can reduce the reel clamping time and increase the efficiency and convenience of reel clamping. Simultaneously, when the first and second limiting rods move to the designated position, their lateral thrust pushes the reel towards the center of the disc frame, reducing the deviation of the electronic carrier belt caused by reel offset when passing through the conveying device, ensuring it is positioned below the detection camera, increasing its shooting accuracy, and reducing missed shots.

[0009] Preferably, a set of support blocks is fixedly connected to the top of the conveying device; a motor is fixedly connected to one side of one of the support blocks; a brush is fixedly connected to the output end of the motor; the brush is arranged between the set of support blocks; by cleaning the surface of the electronic carrier belt before it enters the detection camera for detection, the amount of dust and impurities adhering to its surface can be reduced, reducing the detection camera from misjudging it as defects such as cracks or missing materials, increasing the detection accuracy of the detection camera, reducing the misjudgment rate, and at the same time reducing the direct contact between the lower cutter and the cylinder and impurities during cutting, which would cause burrs or blade wear during cutting, thus increasing its service life.

[0010] Preferably, dust covers are fixed to both sides of the first gantry; multiple dust curtains are installed on the top of the dust covers; the dust covers and dust curtains form a semi-enclosed space, preventing external dust and debris from falling directly onto the surface of the electronic carrier tape, indirectly increasing the cleaning of the electronic carrier tape surface, reducing dust adhesion to the surface of the detection camera, and increasing the accuracy of defect identification.

[0011] Preferably, a backlight panel is fixed to the bottom of the first gantry frame; the backlight panel is positioned above the detection camera; when the detection camera is shooting, shadows may be generated due to the dust cover blocking the light or the electronic carrier belt undulating on the surface of the dust cover during the conveying process, and the backlight panel directly illuminates the area below the detection camera, reducing the missed detection of defects due to insufficient light, increasing the brightness of the detection area, and increasing the image contrast.

[0012] The advantages of this utility model are:

[0013] 1. The electronic carrier tape surface defect detection device of this utility model uses a vacuum pump to create negative pressure at the bottom of the electronic carrier tape through a flow divider, connecting pipe and air hole, which flattens the bent or warped carrier tape and keeps the carrier tape horizontal under the detection camera. This reduces the problem of the detection camera failing to focus due to bending or warping, resulting in blurry images. It makes the images captured by the detection camera more stable and reduces the occurrence of misjudgments.

[0014] 2. The electronic carrier tape surface defect detection device of this utility model controls the cylinder after the detection camera identifies the defect. The defective section of the electronic carrier tape is removed by the shearing action of the lower cut and the cylinder. This can reduce burrs on the cut edge, increase the flatness of the cut edge, and reduce the phenomenon of tearing or delamination of the electronic carrier tape. After the detection camera detects the defect, it can directly remove it, which can increase the integrity of the process and reduce downtime. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main body of the present utility model;

[0017] Figure 2 This is a schematic diagram of the pore structure in this utility model;

[0018] Figure 3 This is a schematic diagram of the collection port structure in this utility model;

[0019] Figure 4 This is a schematic diagram of the cylinder structure in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the disc frame in this utility model.

[0021] In the diagram: 1. Conveying device; 11. Disc frame; 12. Conveying device; 13. Diverter plate; 14. Connecting pipe; 15. Air hole; 16. First gantry frame; 17. Detection camera; 2. Collection port; 21. Lower cut; 22. Second gantry frame; 23. Cylinder; 24. Upper cut; 3. First limit rod; 31. Support seat; 32. Second limit rod; 4. Support block; 41. Motor; 42. Brush; 5. Dust cover; 51. Dust curtain; 6. Backlight panel. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Specific implementation examples are given below.

[0024] like Figures 1 to 3 As shown in the embodiment of this utility model, the electronic carrier tape surface defect detection device includes a conveying device 1; a disc frame 11 is installed on one side of the conveying device 1; a conveying device 12 is installed on the conveying device 1; a flow divider plate 13 is fixedly connected to the bottom of the conveying device 1; a connecting pipe 14 is fixedly connected to the bottom of the flow divider plate 13; a vacuum pump is installed at the end of the connecting pipe 14; multiple air holes 15 are opened on the surface of the conveying device 1; the air holes 15 are connected to the flow divider plate 13; a first gantry frame 16 is fixedly connected to the top of the conveying device 1; a detection camera 17 is installed at the bottom of the first gantry frame 16; during operation, the electronic carrier tape reel is placed in the middle of the disc frame 11, one end of it is passed through the conveying device 12, the conveying device 12 is turned on to convey the electronic carrier tape, and the vacuum pump is turned on to produce... The vacuum pump generates suction, and the air at the bottom of the electronic carrier tape enters the splitter plate 13 through multiple air holes 15, and is then sucked out through the connecting pipe 14, forming a negative pressure at the bottom of the electronic carrier tape. With the cooperation of the rollers on the surface of the conveying device 1 and the vacuum pump, the electronic carrier tape is temporarily corrected to a horizontal state. The conveying device 12 continues to convey the electronic carrier tape, which is then detected below the detection camera 17. After leaving the adsorption area, the electronic carrier tape returns to its original state. The vacuum pump uses the splitter plate 13, connecting pipe 14 and air holes 15 to form a negative pressure at the bottom of the electronic carrier tape, which straightens the bent or warped carrier tape, keeping the carrier tape horizontal under the detection camera 17. This reduces the problem of the detection camera 17 failing to focus due to bending or warping, resulting in blurry images. This makes the images captured by the detection camera 17 more stable and reduces the possibility of misjudgment.

[0025] like Figures 1 to 4As shown, the conveying device 1 has a collection port 2 on its surface; a lower cut 21 is fixedly connected to the surface of the conveying device 1; the lower cut 21 and the collection port 2 are correspondingly arranged; a second gantry frame 22 is fixedly connected to the top of the conveying device 1; a cylinder 23 is fixedly connected to the top of the second gantry frame 22; an upper cut 24 is fixedly connected to the output end of the cylinder 23; the cylinder 23 is controlled by a detection camera 17; during operation, after the detection camera 17 detects a defect in the electronic carrier belt, the cylinder is controlled when the electronic carrier belt passes above the collection port 2. 23. The pressure from the upper cut 24 and the lower cut 21 is used to cut off the defective electronic carrier tape, separating it from the collection port 2. After the defect is identified by the detection camera 17, the cylinder 23 is controlled. The shearing action of the lower cut 21 and the cylinder 23 can remove the defective section of the electronic carrier tape, which can reduce burrs on the cutting edge, increase the flatness of the cutting edge, and reduce the phenomenon of tearing or delamination of the electronic carrier tape. After the detection camera 17 detects the defect, it is directly cut off, which can increase the integrity of the process and reduce downtime.

[0026] like Figure 1 and Figure 5 As shown, a first limiting rod 3 is slidably connected to one side of the conveying device 1; the first limiting rod 3 is slidably connected to the disc frame 11; a support base 31 is slidably connected to one side of the conveying device 1; a second limiting rod 32 is rotatably connected to the middle of the support base 31; the second limiting rod 32 is slidably connected to the disc frame 11; during operation, the support base 31 is moved to one side of the conveying device 1, causing the second limiting rod 32 to detach from the surface of the disc frame 11, then a reel is placed on the surface of the disc frame 11, and then the second limiting rod 32 is connected to the disc frame 11, and then the first limiting rod 3 and the second limiting rod 32 are moved... Move the reel to the designated position so that it is centered on the conveyor 1. By sliding the first limit rod 3 and the second limit rod 32, the reel can be disassembled and positioned, which can reduce the reel clamping time and increase the efficiency and convenience of reel clamping. At the same time, when the first limit rod 3 and the second limit rod 32 move to the designated position, the lateral thrust of the first limit rod 3 and the second limit rod 32 pushes the reel toward the center of the disc frame 11. This can reduce the deviation of the electronic carrier belt caused by the reel offset when passing through the conveyor 12, and keep it below the detection camera 17, increasing its shooting accuracy and reducing the occurrence of missed shots.

[0027] like Figure 1As shown, a set of support blocks 4 are fixedly connected to the top of the conveying device 1; a motor 41 is fixedly connected to one side of one of the support blocks 4; a brush 42 is fixedly connected to the output end of the motor 41; the brush 42 is arranged between the set of support blocks 4; during operation, when the electronic carrier belt moves on the surface of the conveying device 1, the motor 41 is turned on so that its output end drives the brush 42 to rotate, removing dust from the surface of the electronic carrier belt. By cleaning the surface of the electronic carrier belt before it enters the detection camera 17 for detection, the amount of dust and impurities attached to its surface can be reduced, reducing the detection camera 17 from misjudging it as defects such as cracks or missing materials, increasing the detection accuracy of the detection camera 17, reducing the misjudgment rate, and at the same time reducing the direct contact between the lower cutter 21 and the cylinder 23 and impurities during cutting, which would cause burrs or blade wear during cutting, thus increasing its service life.

[0028] like Figure 1 As shown, dust covers 5 are fixed to both sides of the first gantry frame 16; multiple dust curtains 51 are installed on the top of the dust covers 5; during operation, the electronic carrier belt comes into contact with the multiple dust curtains 51 while being transported, and then pushes the dust curtains 51 to move through their gaps to the area below the detection camera 17 for detection. The dust covers 5 and the dust curtains 51 form a semi-enclosed space, preventing external dust and debris from falling directly onto the surface of the electronic carrier belt, indirectly increasing the cleaning of the electronic carrier belt surface, reducing dust adhesion to the surface of the detection camera 17, and increasing the accuracy of defect identification.

[0029] like Figure 3 As shown, a backlight plate 6 is fixedly connected to the bottom of the first gantry 16; the backlight plate 6 is set above the detection camera 17; during operation, when the detection camera 17 is detecting, the backlight plate 6 is turned on to emit light, illuminating the inside of the dust cover 5. Because the dust cover 5 may block the light when the detection camera 17 is taking pictures, or the electronic carrier belt may cast shadows on the surface of the dust cover 5 during the conveying process, the backlight plate 6 directly illuminates the area below the detection camera 17, reducing the missed detection of defects due to insufficient light, increasing the brightness of the detection area, and increasing the image contrast.

[0030] Working principle: By placing the electronic carrier tape reel in the middle of the disc frame 11 and passing one end through the conveyor 12, the conveyor 12 is turned on to transport the electronic carrier tape. The vacuum pump is turned on to generate suction. Air at the bottom of the electronic carrier tape enters the diverter plate 13 through multiple air holes 15 and is then sucked out through the connecting pipe 14, creating a negative pressure at the bottom of the electronic carrier tape. With the cooperation of the rollers on the surface of the conveyor 1 and the vacuum pump, the electronic carrier tape is temporarily corrected to a horizontal state. The conveyor 12 continues to transport the electronic carrier tape. As the electronic carrier tape passes under the detection camera 17 for detection, it returns to its original state after leaving the adsorption area. When the detection camera 17 detects a defect in the electronic carrier tape, the cylinder 23 is controlled to extend and retract as the electronic carrier tape passes above the collection port 2. The pressure of the upper cut 24 and the lower cut 21 is used to remove the defective electronic carrier tape. The carrier tape is cut off and separated from the collection port 2. The support 31 is moved to one side of the conveyor device 1, so that the second limiting rod 32 is detached from the surface of the disc frame 11. Then, the reel is placed on the surface of the disc frame 11. Subsequently, the second limiting rod 32 is connected to the disc frame 11. Then, the first limiting rod 3 and the second limiting rod 32 are moved to the designated position so that the reel is in the center position of the conveyor device 1. When the electronic carrier tape moves on the surface of the conveyor device 1, the motor 41 is turned on so that its output end drives the brush 42 to rotate, removing dust from the surface of the electronic carrier tape. When the electronic carrier tape is conveyed, it comes into contact with multiple dust curtains 51. Then, the dust curtains 51 are pushed and moved through their gaps to the area below the detection camera 17 for detection. When the detection camera 17 is detecting, the backlight 6 is turned on so that it emits light to illuminate the inside of the dust cover 5.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An electronic carrier tape surface defect detection device, characterized in that: The device includes a conveying device (1); a disc frame (11) is installed on one side of the conveying device (1); a conveying device (12) is installed on the conveying device (1); a diverter plate (13) is fixedly connected to the bottom of the conveying device (1); a connecting pipe (14) is fixedly connected to the bottom of the diverter plate (13); a vacuum pump is installed at the end of the connecting pipe (14); multiple air holes (15) are opened on the surface of the conveying device (1); the air holes (15) are connected to the diverter plate (13); a first gantry frame (16) is fixedly connected to the top of the conveying device (1); a detection camera (17) is installed at the bottom of the first gantry frame (16).

2. The electronic carrier tape surface defect detection device according to claim 1, characterized in that: The conveying device (1) has a collection port (2) on its surface; a lower cut (21) is fixedly connected to the surface of the conveying device (1); the lower cut (21) and the collection port (2) are correspondingly set; a second gantry frame (22) is fixedly connected to the top of the conveying device (1); a cylinder (23) is fixedly connected to the top of the second gantry frame (22); an upper cut (24) is fixedly connected to the output end of the cylinder (23); the cylinder (23) is controlled by a detection camera (17).

3. The electronic carrier tape surface defect detection device according to claim 2, characterized in that: The conveying device (1) is slidably connected to a first limiting rod (3) on one side; the first limiting rod (3) is slidably connected to the disc frame (11); the conveying device (1) is slidably connected to a support base (31) on one side; the support base (31) is rotatably connected to a second limiting rod (32) in the middle; the second limiting rod (32) is slidably connected to the disc frame (11).

4. The electronic carrier tape surface defect detection device according to claim 3, characterized in that: The top of the conveying device (1) is fixedly connected to a set of support blocks (4); a motor (41) is fixedly connected to one side of one of the support blocks (4); a brush (42) is fixedly connected to the output end of the motor (41); the brush (42) is arranged between the set of support blocks (4).

5. The electronic carrier tape surface defect detection device according to claim 4, characterized in that: Dust covers (5) are fixed to both sides of the first gantry frame (16); multiple dust curtains (51) are installed on the top of the dust covers (5).

6. The electronic carrier tape surface defect detection device according to claim 5, characterized in that: A backlight plate (6) is fixed to the bottom of the first gantry (16); the backlight plate (6) is set above the detection camera (17).

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