A device for detecting and marking defects on the surface of artificial leather

Abstract

This utility model relates to the technical field of quality inspection equipment for artificial leather production, and in particular to a device for detecting and marking surface defects in artificial leather. This utility model provides such a device, comprising a housing, a frame, a controller, a support frame, a robotic arm, and an inkjet head. The frame is fixedly connected to the bottom of the housing, the controller is mounted on the front side of the housing, and the support frame is fixedly connected between the front and rear sides of the top of the housing. The robotic arm is mounted on the rear side inside the support frame, and the inkjet head is mounted on the bottom of the robotic arm. High-definition images of the artificial leather surface are captured by an industrial camera, and the image data is precisely analyzed by a vision sensor. The robotic arm can precisely move to the defect location, and ink is supplied to the inkjet head through a connecting pipe via a pump, achieving pinpoint marking of the defects. This solves the problem that existing methods for detecting surface defects in artificial leather rely on manual visual inspection, which often results in missed detections and inaccurate marking, leading to reduced product quality and production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of quality inspection equipment for artificial leather production, and in particular to a surface defect detection and marking device for artificial leather. Background Technology

[0002] Artificial leather is a synthetic material made by coating or bonding polymer materials (such as polyvinyl chloride (PVC) and polyurethane (PU)) onto a fabric base (such as cotton or synthetic fiber fabric). It not only mimics the appearance and texture of natural leather but also possesses excellent properties such as water resistance, abrasion resistance, and easy cleaning. As an important alternative to natural leather, this material is widely used in the manufacture of clothing, footwear, bags, furniture (such as sofas and chairs), and gloves.

[0003] However, the current method of detecting defects on the surface of artificial leather mainly relies on manual visual inspection, which has obvious technical defects: on the one hand, manual inspection is inefficient and cannot meet the needs of large-scale production; on the other hand, due to visual fatigue and subjective judgment differences, operators are prone to missed or mis-detection, and the marking of defect locations is often not accurate enough, which seriously affects the quality control of subsequent repair processes.

[0004] Therefore, it is necessary to design a device for detecting and marking defects on the surface of artificial leather. Utility Model Content

[0005] In order to overcome the shortcomings of existing artificial leather surface defect detection methods that rely on manual visual inspection, which often leads to missed detections and inaccurate marking, thus reducing product quality and production efficiency, this utility model provides an artificial leather surface defect detection and marking device.

[0006] The technical solution is as follows: A surface defect detection and marking device for artificial leather includes a housing, a frame, a controller, a support frame, a robotic arm, an inkjet head, an ink reservoir, a sealing cap, a pump body, a connecting pipe, an industrial camera, and a vision sensor. The frame is fixedly connected to the bottom of the housing, the controller is installed on the front side of the housing, the support frame is fixedly connected between the front and rear sides of the top of the housing, the robotic arm is installed on the rear side inside the support frame, the inkjet head is installed at the bottom of the robotic arm, the ink reservoir is fixedly connected to the rear side of the housing, the sealing cap is threadedly connected to the top of the ink reservoir, the pump body is installed on the rear side of the ink reservoir, a connecting pipe connects the inkjet head and the ink reservoir, the industrial camera is installed on the top inside the support frame, and the vision sensor is installed on the front side of the housing. The robotic arm, pump body, industrial camera, and vision sensor are all wired to the controller.

[0007] As a further preferred embodiment, it also includes a motor and a conveyor belt. The motor is installed on the front side of the housing and is connected to the controller by wires. The output shaft of the motor passes through the housing and is rotatably connected to it. The conveyor belt is installed inside the housing, and the output shaft of the motor is connected to the drive wheel of the conveyor belt.

[0008] As a further preferred embodiment, it also includes a second motor, a connecting plate, and a push rod. The second motor is installed on both the front and rear sides inside the housing, and the connecting plate is fixedly connected to both the front and rear sides inside the housing. The push rod is rotatably connected inside the connecting plate, and the push rod passes through the corresponding connecting plate. The output shaft of the second motor is connected to the push rod on the same side.

[0009] As a further preferred option, it also includes a base and a storage frame. The front and rear sides of the machine housing are provided with a discharge port. The front and rear sides of the machine housing are fixedly connected to the base. The top of the base is slidably connected to the storage frame. The discharge port is matched with the storage frame on the same side.

[0010] As a further preferred option, it also includes a fixing block and LED lights. The fixing block is fixedly connected to the top of the housing, and multiple LED lights are installed inside the fixing block. All LED lights are connected to the controller wires.

[0011] As a further preferred option, the connecting tube is a flexible tube.

[0012] Beneficial effects: 1. The surface of artificial leather is captured in high definition by an industrial camera, and the image data is accurately analyzed by a vision sensor. The robotic arm can move precisely to the defect location and supply ink to the inkjet head through the connecting pipe with the pump body, so as to realize the fixed-point marking of defects. This solves the problem that the detection of defects on the surface of artificial leather relies on manual visual inspection, which often leads to missed detections and inaccurate marking, thus reducing product quality and production efficiency.

[0013] 2. This utility model, by setting up a second motor, a connecting plate, a push rod, and a storage frame, allows the second motor to rotate, driving the corresponding push rod to rotate. This enables the artificial leather without defects and with defects to be pushed into the corresponding storage frame through the front and rear feeding ports for collection, thereby further improving the detection efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the components of this utility model, including motor one, conveyor belt, and motor two.

[0016] Figure 3 This is a three-dimensional structural diagram of the ink reservoir, sealing cap, and pump body of this utility model.

[0017] Figure 4 This is a three-dimensional structural masked view of the motor, connecting plate, and push rod components of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the fixing block and LED light component of this utility model.

[0019] The components in the diagram are labeled as follows: 1_Machine housing, 101_Feeding port, 2_Frame, 3_Controller, 4_Support frame, 5_Robot arm, 501_Inkjet head, 6_Ink reservoir, 7_Sealing cap, 8_Pump body, 9_Connecting pipe, 10_Industrial camera, 11_Vision sensor, 12_Motor 1, 13_Conveyor belt, 14_Motor 2, 15_Connecting plate, 16_Push rod, 17_Base, 18_Storage box, 19_Fixing block, 20_LED light. Detailed Implementation

[0020] Example: A device for detecting and marking defects on the surface of artificial leather, such as... Figure 1 , Figure 2 and Figure 3 As shown, the device includes a housing 1, a frame 2, a controller 3, a support frame 4, a robotic arm 5, an inkjet head 501, an ink reservoir 6, a sealing cap 7, a pump body 8, a connecting pipe 9, an industrial camera 10, and a vision sensor 11. The frame 2 is welded to the bottom of the housing 1. The controller 3 is installed on the front side of the housing 1. The support frame 4 is welded between the front and rear sides of the top of the housing 1. The robotic arm 5 is installed on the rear side inside the support frame 4. The inkjet head 501 is installed at the bottom of the robotic arm 5. The ink reservoir 6 is welded to the rear side of the housing 1. The sealing cap 7 is threaded to the top of the ink reservoir 6. The pump body 8 is installed on the rear side of the ink reservoir 6. The connecting pipe 9, which is a flexible hose, connects the inkjet head 501 to the ink reservoir 6 and can move flexibly with the robotic arm 5 to ensure smooth ink output. The industrial camera 10 is installed on the top inside the support frame 4. The vision sensor 11 is installed on the front side of the housing 1. The robotic arm 5, the pump body 8, the industrial camera 10, and the vision sensor 11 are all wired to the controller 3.

[0021] like Figure 1 and Figure 2 As shown, it also includes a motor 12 and a conveyor belt 13. The motor 12 is installed on the front side of the housing 1. The motor 12 is wired to the controller 3. The output shaft of the motor 12 passes through the housing 1 and is rotatably connected to it. The conveyor belt 13 is installed inside the housing 1. The output shaft of the motor 12 is connected to the drive wheel of the conveyor belt 13.

[0022] like Figure 2 , Figure 3 and Figure 4 As shown, it also includes a second motor 14, a connecting plate 15, a push rod 16, a base 17, and a storage frame 18. The second motor 14 is installed on both the front and rear sides inside the machine housing 1. The connecting plate 15 is welded to both the front and rear sides inside the machine housing 1. The push rod 16 is rotatably connected inside the connecting plate 15. The push rod 16 passes through the corresponding connecting plate 15. The output shaft of the second motor 14 is connected to the push rod 16 on the same side. The front and rear sides of the machine housing 1 are provided with a discharge port 101. The front and rear sides of the machine housing 1 are welded to the base 17. The top of the base 17 is slidably connected to the storage frame 18. The discharge port 101 is engaged with the storage frame 18 on the same side.

[0023] like Figure 2 and Figure 5 As shown, it also includes a fixing block 19 and LED lights 20. The fixing block 19 is welded to the top inside the housing 1. Six LED lights 20 are installed inside the fixing block 19. The LED lights 20 are all connected to the controller 3 by wires, which can provide sufficient and uniform lighting for the shooting environment and create good conditions for the industrial camera 10 to take clear images.

[0024] When it is necessary to detect and mark defects on the surface of artificial leather, the operator first rotates the sealing cap 7, pours ink into the ink reservoir 6, then rotates the sealing cap 7 in the opposite direction to reset it, then turns on the LED light 20, and starts the motor 12, industrial camera 10 and vision sensor 11 through the controller 3. The output shaft of the motor 12 rotates, driving the power wheel of the conveyor belt 13 to rotate, thereby driving the conveyor belt 13 to start running. The operator can then place the artificial leather to be inspected on the conveyor belt 13 in sequence, and the artificial leather will be smoothly transported from left to right. When the artificial leather enters the support frame 4, the industrial camera 10 takes a comprehensive and detailed picture of the surface of the artificial leather in real time, captures the surface image information, and transmits the image to the vision sensor 11. The vision sensor 11 analyzes the image to determine whether there are defects on the surface of the artificial leather and feeds back to the controller 3.

[0025] If a defect is detected, the controller 3 will immediately calculate the specific location of the defect and send an instruction to the robot arm 5. The robot arm 5 will move precisely within the support frame 4 according to the defect location, thereby moving the inkjet head 501 directly above the defect. At the same time, the controller 3 will start the pump body 8, which will transport the ink in the ink tank 6 to the inkjet head 501 through the connecting pipe 9. The inkjet head 501 can then mark the defect location with ink. After marking, the artificial leather will continue to be conveyed to the right on the conveyor belt 13. The rear motor 14 will start under the control of the controller 3, and its output shaft will rotate to drive the corresponding push rod 16 to rotate within the connecting plate 15. The marked artificial leather with defects will be pushed into the rear storage box 18 for collection through the rear discharge port 101.

[0026] If no defects are detected, the artificial leather continues to be conveyed to the right until it reaches a certain position. Then, the front motor 14 is started under the control of the controller 3. Its output shaft rotates, driving the corresponding push rod 16 to rotate, pushing the artificial leather without defects through the front discharge port 101 into the corresponding storage box 18 for collection.

[0027] After all the artificial leather has been inspected, turn off the motor, industrial camera 10 and vision sensor 11, take out the storage box 18 in sequence, remove the collected and sorted artificial leather inside, and then reset it to complete the use of this device.

Claims

1. A kind of artificial leather surface flaw detection marking device, it is characterized in that, The device includes a housing (1), a frame (2), a controller (3), a support frame (4), a robotic arm (5), an inkjet head (501), an ink reservoir (6), a sealing cap (7), a pump body (8), a connecting pipe (9), an industrial camera (10), and a vision sensor (11). The frame (2) is fixedly connected to the bottom of the housing (1). The controller (3) is installed on the front side of the housing (1). The support frame (4) is fixedly connected between the front and rear sides of the top of the housing (1). The robotic arm (5) is installed on the rear side inside the support frame (4). The bottom of the robotic arm (5) is... The inkjet head (501) is installed, and an ink tank (6) is fixedly connected to the rear side of the housing (1). A sealing cap (7) is threaded onto the top of the ink tank (6). A pump body (8) is installed on the rear side of the ink tank (6). A connecting pipe (9) connects the inkjet head (501) and the ink tank (6). An industrial camera (10) is installed on the top inside the support frame (4). A vision sensor (11) is installed on the front side of the housing (1). The robot (5), pump body (8), industrial camera (10) and vision sensor (11) are all wired to the controller (3).

2. The artificial leather surface defect detection marking device according to claim 1, characterized in that, It also includes a motor (12) and a conveyor belt (13). The motor (12) is installed on the front side of the housing (1). The motor (12) is wired to the controller (3). The output shaft of the motor (12) passes through the housing (1) and is rotatably connected to it. The conveyor belt (13) is installed inside the housing (1). The output shaft of the motor (12) is connected to the power wheel of the conveyor belt (13).

3. The artificial leather surface defect detection marking device according to claim 2, characterized in that, It also includes a second motor (14), a connecting plate (15) and a push rod (16). The second motor (14) is installed on both the front and rear sides inside the housing (1). The connecting plate (15) is fixedly connected to both the front and rear sides inside the housing (1). The push rod (16) is rotatably connected inside the connecting plate (15). The push rod (16) passes through the corresponding connecting plate (15). The output shaft of the second motor (14) is connected to the push rod (16) on the same side.

4. The artificial leather surface defect detection marking device according to claim 3, characterized in that, It also includes a base (17) and a storage frame (18). The front and rear sides of the machine housing (1) are provided with a discharge port (101). The front and rear sides of the machine housing (1) are fixedly connected to the base (17). The top of the base (17) is slidably connected to the storage frame (18). The discharge port (101) is matched with the storage frame (18) on the same side.

5. The artificial leather surface defect detection and marking device as described in claim 4, characterized in that, It also includes a fixing block (19) and LED lights (20). The fixing block (19) is fixedly connected to the top of the casing (1). Multiple LED lights (20) are installed inside the fixing block (19). All LED lights (20) are connected to the controller (3) by wires.

6. The artificial leather surface defect detection marking device according to claim 5, characterized in that, The connecting pipe (9) is a flexible hose.

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