Air floatation conveying material penetrating device for line-scan digital camera surface defect detection system

Abstract

The invention discloses an air floatation conveying material penetrating device for a line-scan digital camera surface defect detection system, which is arranged between an upper light source and a lower light source, and comprises a one-way roller, a movable air floatation, a fixed air floatation, a front photoelectric switch, a rear photoelectric switch, a clutch photoelectric switch, a thread rolling bearing and a motor, a movable air floater and a fixed air floater are arranged at the front end and the rear end of the thread rolling bearing, a one-way roller is arranged at the front end of the movable air floater, a front optoelectronic switch and a rear optoelectronic switch are arranged at the front position and the rear position of the movable air floater, a clutch optoelectronic switch is arranged on the fixed air floater, and the thread rolling bearing is used for driving the air floaters to operate and driven by a motor to rotate. The air floatation provides a stable and powerful power source for the system, can provide a precious detection space for the detection system due to small occupied space, and can provide stable transmission support, reduce detection errors and ensure detection accuracy. The problems of material penetration in a narrow space and large detection error are solved.

Description

Technical Field

[0001] This invention relates to an air-floating conveying and feeding device, specifically to an air-floating conveying and feeding device for a surface defect detection system of a line array camera. Background Technology

[0002] With the increasing popularity of surface defect detection applications, surface defect detection equipment for tire cord fabrics is widely used in related product processes. However, the distance between the light source and the surface of the inspected object in surface defect detection equipment has specific requirements, such as being within 10-15mm. Therefore, the upper and lower light sources create a small conveying space, making it impossible to complete the material threading manually. Furthermore, since the light source is a tunnel light, if the production process is a direct cutting process, the material will droop down into the lower light source during the threading process, causing significant trouble for material threading during production changes. At the same time, it is necessary to solve the problem that in the direct cutting process of rubber cord fabrics, the material moves or stretches in the opposite direction of transportation during the material storage process in the material pit, which causes changes in the surface characteristics of the cord fabric, resulting in false detections or missed detections.

[0003] Currently, the conveying device for tire cord fabric is generally a non-powered idler roller with a diameter of about 50mm. This cannot provide sufficient installation space for the light source of the surface defect detection system (the distance between the light source and the inspected cord fabric is 10-15mm). The transmission in the tire cutting process is a combination of flat belt and idler roller. When the flat belt drive stops, the material on the idler roller will sink and accumulate. When the flat belt restarts, it will cause the cord fabric to shake, resulting in uneven edge imaging and large detection errors. Summary of the Invention

[0004] To address the problems of material feeding in confined spaces and large detection errors, this invention provides an air-floating conveying material feeding device for a surface defect detection system of a line array camera.

[0005] This invention provides the following technical solution: An air-floating conveyor feeding device is used in a surface defect detection system for a line array camera. The device is positioned between the upper and lower light sources and includes a one-way roller, a movable air float, a fixed air float, a front photoelectric switch, a rear photoelectric switch, a clutch photoelectric switch, a threaded bearing, and a motor. Movable and fixed air floats are located at the front and rear ends of the threaded bearing. A one-way roller is located at the front end of the movable air float. The front and rear photoelectric switches are located at the front and rear positions of the movable air float, respectively. A clutch photoelectric switch is located on the fixed air float. The threaded bearing drives the air float, which is rotated by the motor. The air-floating conveyor feeding device controls the motor's start and stop via trigger signals from the photoelectric switches, thereby driving the threaded bearing to rotate.

[0006] Furthermore, the unidirectional roller is used to guide and support the material; the movable air flotation is used to support the material during the feeding process; and the fixed air flotation provides support for the incoming material.

[0007] Furthermore, when the front photoelectric switch is blocked by material, the motion controller resets the movable air flotation to the starting position; when the rear photoelectric switch is blocked by material, the motion controller starts the movable air flotation to run until the rear photoelectric switch is not blocked or the movable air flotation reaches the maximum operating position and stops; when the clutch photoelectric switch is blocked by material, the motion controller controls the movable air flotation to move in the opposite direction until it reaches the starting position.

[0008] The movable air flotation system consists of a transmission line composed of multiple air flotation units. Each air flotation unit is composed of uniformly arranged air flotation nozzles. Under the action of air flotation, the material is conveyed from the inlet to the fixed air flotation position along the transmission line.

[0009] The fixed air flotation consists of air flotation plates or air flotation strips, with evenly distributed air outlets on its surface and airflow channels inside. After compressed air is introduced, it is blown out from the air outlets through the airflow channels to form an air film that suspends and supports the material.

[0010] The photoelectric switch trigger signal controls the motor to start and stop, driving the thread rolling bearing to rotate. The process is as follows: I. Start: Process Initiation; 2. Front photoelectric switch trigger judgment: Detect whether the front photoelectric switch is triggered. If it is not triggered, the equipment will not operate; if it is triggered, proceed to the next step. III. Reset the movable air float: Perform a reset operation on the movable air float. After the reset is completed, proceed to the next step. IV. Rear photoelectric switch trigger judgment: Detect whether the rear photoelectric switch is triggered. If it is not triggered, the motor stops running; if it is triggered, the motor runs in the forward direction. V. Determining the Maximum Position of the Movable Air Blower: Determine whether the movable air blower has reached its maximum position. If it has not reached its maximum position, continue running the motor and continue to determine the position. If it has reached its maximum position, proceed to the next step. VI. Clutch photoelectric switch trigger judgment: Detect whether the clutch photoelectric switch is triggered. If it is not triggered, the motor stops running; if it is triggered, proceed to the next step. 7. Time N seconds: Perform a timing operation for a duration of N seconds; 8. Reset the movable air float: Perform the reset operation on the movable air float again; 9. Conclusion: The entire process is now complete.

[0011] Compared with the prior art, the beneficial effects of the present invention are: 1. The air-float conveying feeding device of the present invention consists of a one-way roller, a movable air float, a fixed air float, a front photoelectric switch, a rear photoelectric switch, a clutch photoelectric switch, a thread rolling bearing, and a motor. When the employee feeds the material, he puts the tire cord on the one-way roller and pushes it forward. When the cord triggers the front photoelectric switch, the movable air float returns to its initial position, ensuring the stability of the motion controller. The movable air float provides support for the employee during the feeding process, ensuring that the material is conveyed from the inlet to the fixed air float and preventing the material from sagging and causing feeding failure. 2. Due to its small footprint, air flotation provides a feasible solution for surface defect detection equipment to operate in confined spaces. By supporting materials through air flotation, it offers stable transmission support, reduces detection errors, and ensures detection accuracy. This solves the problems of material penetration and large detection errors in narrow spaces. Attached Figure Description

[0012] Figure 1 This is a side view of the present invention; Figure 2 This is a flowchart of the present invention; Figure 3 This is a top view of the movable air flotation device of the present invention; Figure 4 This is a top view of the fixed air flotation device of the present invention; Figure 5 This is a block diagram illustrating the principle of the present invention.

[0013] In the diagram: 1. One-way roller; 2. Movable air float; 21. Air float nozzle; 22. Transmission line; 3. Fixed air float; 4. Front photoelectric switch; 5. Rear photoelectric switch; 6. Clutch photoelectric switch; 7. Thread rolling bearing; 8. Motor; 9. Upper light source; 10. Lower light source. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Please see Figure 1 , 2 The present invention relates to an air-floating conveyor feeding device for a surface defect detection system of a line array camera, wherein the air-floating conveyor feeding device is disposed between the upper light source 9 and the lower light source 10. The air flotation conveying feeding device includes a unidirectional roller 1, a movable air flotation 2, a fixed air flotation 3, a front photoelectric switch 4, a rear photoelectric switch 5, a clutch photoelectric switch 6, a thread rolling bearing 7, and a motor 8. Movable air float 2 and fixed air float 3 are provided at the front and rear ends of the thread rolling bearing 7. A one-way roller 1 is provided at the front end of the movable air float 2. A front photoelectric switch 4 and a rear photoelectric switch 5 are provided at the front and rear positions of the movable air float 2. A clutch photoelectric switch 6 is provided on the fixed air float 3. The thread rolling bearing 7 is used to drive the air float to run. The thread rolling bearing 7 is driven to rotate by the motor 8.

[0016] Figure 3 As shown, the movable air flotation 2 consists of multiple air flotation nozzles 21, which are designed as Laval nozzles.

[0017] The working principle of movable air flotation is to use compressed gas provided by a high-pressure air source, which is evenly released to the area below the platform surface through an array of air holes to form a stable pressure air film, which lifts and moves the material placed on it.

[0018] On the production line, the movable air flotation is a conveyor line 22 composed of multiple air flotation units. Each air flotation unit consists of a series of evenly arranged air flotation nozzles 21. Under the action of air flotation, the material is conveyed from the inlet to the fixed air flotation position along the conveyor line 22.

[0019] Figure 4 As shown, the fixed air flotation 3 is composed of air flotation plate 31 or air flotation strip, with uniformly distributed air outlet holes 32 on its surface and airflow channels inside. After compressed air is introduced, it is blown out from the air outlet holes through the airflow channels to form an air film that suspends and supports the material.

[0020] Among them, the unidirectional roller 1 is at the front end of the equipment to ensure that the drag caused by gravity after the material enters the material pit will not stretch the material behind it; the movable air flotation 2 provides support for the workers during the material feeding process, ensuring that the material is conveyed from the inlet to the fixed air flotation 3 and preventing the material from sagging and causing feeding failure; the fixed air flotation 3 provides support for the incoming material; when the front photoelectric switch 4 is blocked by the material, the motion controller resets the movable air flotation to the starting position; when the rear photoelectric switch 5 is blocked by the material, the motion controller starts the movable air flotation to run until the rear photoelectric switch is not blocked or the movable air flotation reaches the maximum running position and stops; when the clutch photoelectric switch 6 is blocked by the material, the motion controller controls the movable air flotation to move in the opposite direction until it reaches the starting position; the threaded bearing 7 is used to drive the air flotation; and the motor 8 provides the motion power for the air flotation.

[0021] Figure 5As shown, the motion controller uses the trigger signal of the photoelectric switch to control the start and stop of the motor, driving the threaded bearing 7 to rotate, thereby controlling the start and stop of the movable air float 2. When the front photoelectric switch 4 is blocked, the motor 8 resets the movable air float 2 to the starting position. When both the front photoelectric switch 4 and the rear photoelectric switch 5 are blocked, the motor 8 starts running in the forward direction; when the rear photoelectric switch 5 is not blocked, the motor 8 stops running. When the clutch photoelectric switch 6 is blocked, the motion controller delays for a certain period of time (e.g., 10 seconds) and then controls the motor to start and reset the movable air float to the starting position, completing the tire cord fabric insertion process.

[0022] The photoelectric switch trigger signal controls the motor to start and stop, driving the thread rolling bearing to rotate. The process is as follows: I. Start: Process Initiation; 2. Front photoelectric switch trigger judgment: Detect whether the front photoelectric switch is triggered (obstructed). If it is not triggered, the equipment will not operate; if it is triggered, proceed to the next step. III. Reset the movable air float: Perform a reset operation on the movable air float. After the reset is completed, proceed to the next step. IV. Rear photoelectric switch trigger judgment: Detect whether the rear photoelectric switch is triggered (blocked). If it is not triggered, the motor stops running; if it is triggered, the motor runs in the forward direction. V. Determining the Maximum Position of the Movable Air Blower: Determine whether the movable air blower has reached its maximum position. If it has not reached its maximum position, continue running the motor and continue to determine the position. If it has reached its maximum position, proceed to the next step. VI. Clutch photoelectric switch trigger judgment: Detect whether the clutch photoelectric switch is triggered (blocked). If it is not triggered, the motor stops running; if it is triggered, proceed to the next step. 7. Time N seconds: Perform a timing operation for a duration of N seconds; 8. Reset the movable air float: Perform the reset operation on the movable air float again; 9. Conclusion: The entire process is now complete.

[0023] The air-float conveying feeding device of the present invention consists of a one-way roller 1, a movable air float 2, a fixed air float 3, a front photoelectric switch 4, a rear photoelectric switch 5, a clutch photoelectric switch 6, a thread rolling bearing 7, and a motor 8. When feeding materials, the employee places the tire cord on the one-way roller 1 and pushes it forward. When the cord triggers the front photoelectric switch 4, the movable air float 2 returns to its initial position, ensuring the stability of the motion controller. As the curtain material continues to advance, when the material blocks the photoelectric switch 5, the motion controller starts the motor 8, which rotates the threaded bearing 7 to drive the movable air float 2 forward. If the movable air float moves too fast and the photoelectric switch is not blocked, the motion controller controls the motor to stop rotating, causing the movable air float to stop moving and wait for the material to advance. When the movable air float 2 reaches its maximum position, the motor stops moving and waits for the clutch photoelectric switch 6 to be triggered. When the clutch photoelectric switch 6 is triggered, the motion controller starts timing for N seconds. After N seconds, the control system controls the motor to move and reset the movable air float 2.

[0024] The key features of this invention are the motion controller and the assembleable air-float nozzle. The nozzle is designed as a Laval nozzle to provide a stable and powerful power source for the system. Because the air-float occupies little space, it can provide valuable detection space for the detection system. Furthermore, the air-float can provide stable transmission support, reduce detection errors, and ensure detection accuracy.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air-floating conveying feeding device for a surface defect detection system of a line array camera, characterized in that: The air flotation conveying and feeding device is set between the upper light source (9) and the lower light source (10). The air flotation conveying and feeding device includes a one-way roller (1), a movable air flotation (2), a fixed air flotation (3), a front photoelectric switch (4), a rear photoelectric switch (5), a clutch photoelectric switch (6), a thread rolling bearing (7), and a motor (8). The movable air flotation (2) and the fixed air flotation (3) are set at the front and rear ends of the thread rolling bearing (7). The one-way roller (1) is set at the front end of the movable air flotation (2). The front photoelectric switch (4) and the rear photoelectric switch (5) are set at the front and rear positions of the movable air flotation (2). The clutch photoelectric switch (6) is set on the fixed air flotation (3). The thread rolling bearing (7) is used to drive the air flotation to run. The thread rolling bearing (7) is driven to rotate by the motor (8). The air flotation conveying and feeding device controls the motor (8) to start and stop through the trigger signal of the photoelectric switch, thereby driving the thread rolling bearing (7) to rotate.

2. The air-floating conveying and feeding device for a surface defect detection system of a line array camera according to claim 1, characterized in that: The unidirectional roller (1) is used to guide and support the material; the movable air flotation (2) is used to support the material during the feeding process; and the fixed air flotation (3) provides support for the incoming material.

3. The air-floating conveying and feeding device for a surface defect detection system of a line array camera according to claim 1, characterized in that: After the front photoelectric switch (4) is blocked by the material, the motion controller resets the movable air flotation to the starting position; after the rear photoelectric switch (5) is blocked by the material, the motion controller starts the movable air flotation to run until the rear photoelectric switch is not blocked or the movable air flotation (2) reaches the maximum running position and stops; after the clutch photoelectric switch (6) is blocked by the material, the motion controller controls the movable air flotation (2) to move in the opposite direction until the starting position.

4. The air-floating conveying and feeding device for a surface defect detection system of a line array camera according to claim 1, characterized in that: The movable air flotation (2) is a transmission line composed of multiple air flotation units. Each air flotation unit consists of a series of uniformly arranged air flotation nozzles. Under the action of air flotation, the material is conveyed from the inlet to the fixed air flotation position along the transmission line.

5. The air-floating conveying and feeding device for a surface defect detection system of a line array camera according to claim 1, characterized in that: The fixed air flotation (3) is composed of air flotation plates or air flotation strips. Its surface has evenly distributed air outlets and its interior has airflow channels. After compressed air is introduced, it is blown out from the air outlets through the airflow channels to form an air film that suspends and supports the material.

6. The air-floating conveying and feeding device for a surface defect detection system of a line array camera according to claim 1, characterized in that: The photoelectric switch trigger signal controls the motor to start and stop, driving the thread rolling bearing to rotate. The process is as follows: I. Start: Process Initiation; II. Front photoelectric switch trigger judgment: Detect whether the front photoelectric switch is triggered. If it is not triggered, the equipment will not operate; if it is triggered, proceed to the next step. III. Reset the movable air float: Perform a reset operation on the movable air float. After the reset is completed, proceed to the next step; IV. Rear photoelectric switch trigger detection: Detect whether the rear photoelectric switch is triggered. If it is not triggered, the motor stops running; if it is triggered, the motor runs in the forward direction. V. Determining the maximum position of the movable air float: Determine whether the movable air float has reached its maximum position. If it has not reached its maximum position, continue to keep the motor running and continue to determine the position. If achieved, proceed to the next step; VI. Clutch photoelectric switch trigger detection: Detect whether the clutch photoelectric switch is triggered. If it is not triggered, the motor stops running; if it is triggered, proceed to the next step.

7. Timing N seconds: Perform a timing operation for a duration of N seconds; 8. Reset the movable air float: Perform the reset operation on the movable air float again; 9. Conclusion: The entire process is now complete.

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