Zipper defect detection system and method and computer program product

Abstract

The invention discloses a zipper defect detection system, a zipper defect detection method and a computer program product. The zipper defect detection system comprises a driving positioning mechanism, a pressing rod mechanism, a double-sided image acquisition module and a defect detection module, the driving positioning mechanism is used for limiting the head part and the tail part of the zipper to be detected and driving the zipper to be detected to move to a target position, so that the double-sided image acquisition module can acquire an image of the zipper to be detected; the pressing rod mechanism is used for applying a preset pulling force to the to-be-detected zipper before the driving positioning mechanism drives the to-be-detected zipper to move to a target position, so that the to-be-detected zipper is kept in a flat state; the double-sided image acquisition module is used for acquiring a front image and a back image of the zipper to be detected; and the defect detection module is used for performing defect detection on the front image and the back image of the to-be-detected zipper to obtain a defect detection result of the to-be-detected zipper. The system can improve the zipper defect detection precision.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of defect detection, in particular to a zipper defect detection system, method and computer program product. BACKGROUND

[0002] As a widely used industrial product, the zipper inevitably produces defects and flaws in the manufacturing process. In order to ensure product quality, strict quality detection is required. However, the existing zipper detection technology faces the problem of reduced detection accuracy due to the material of the zipper itself and the complex mechanical structure in the operation process. SUMMARY

[0003] The technical problem solved by the present application is the low precision of zipper defect detection.

[0004] According to a first aspect, in an embodiment, a zipper defect detection system is provided, comprising: a driving positioning mechanism, a pressure rod mechanism, a double-sided image acquisition module and a defect detection module; The driving positioning mechanism is used to limit the head and tail of the zipper to be detected, and drive the zipper to be detected to move to a target position, so that the double-sided image acquisition module can acquire the image of the zipper to be detected. The pressure rod mechanism is used to apply a preset tension to the zipper to be detected before the driving positioning mechanism drives the zipper to be detected to move to the target position, so that the zipper to be detected remains flat. The double-sided image acquisition module is used to acquire the front and back images of the zipper to be detected. The defect detection module is used to detect defects in the front and back images of the zipper to be detected, and obtain the defect detection result of the zipper to be detected.

[0005] In some embodiments, the zipper defect detection system further comprises an operation table, wherein the operation table is provided with a light transmission hole, and the target position is the position of the light transmission hole; the operation table is used to carry the zipper to be detected.

[0006] In some embodiments, the double-sided image acquisition module comprises an upper light source, an upper line array camera, a lower light source and a lower line array camera, wherein the upper light source and the upper line array camera are arranged above the light transmission hole, and the lower light source and the lower line array camera are arranged below the light transmission hole. The upper light source is used to provide illumination for the front of the zipper to be detected. The upper line array camera is used to acquire the front image of the zipper to be detected. The lower light source is used to provide illumination for the back of the zipper to be detected. The lower line array camera is configured to capture an image of the reverse side of the zipper to be detected.

[0007] In some embodiments, the upper light source and the lower light source are low-angle diffuse bar light sources.

[0008] In some embodiments, the light transmission hole is in a rectangular linear shape, and the length of the light transmission hole is greater than the length of the photosensitive chip array of the upper line array camera or the lower line array camera.

[0009] In some embodiments, the driving positioning mechanism comprises a positioning component, a traction mechanism, and a driving motor. The positioning component is configured to limit the head and tail of the zipper to be detected. The traction mechanism is configured to move the zipper to be detected. The driving motor is configured to drive the traction mechanism to work.

[0010] In some embodiments, the speed of the driving motor and the line scanning frequency of the upper line array camera or the lower line array camera satisfy a preset matching formula, and the expression of the matching formula is: wherein F is the line scanning frequency of the upper line array camera or the lower line array camera, V is the speed of the driving motor, N is the resolution of the upper line array camera or the lower line array camera, and C is the field of view width.

[0011] In some embodiments, the height of the pressing rod mechanism has a mapping relationship with the specifications of the zipper to be detected, wherein the specifications of the zipper to be detected include the model, the width, and the thickness.

[0012] According to a second aspect, in an embodiment, a zipper defect detection method is provided, which is applied to a zipper defect detection system, and the zipper defect detection system comprises a driving positioning mechanism, a pressing rod mechanism, and a double-sided image acquisition module. The zipper defect detection method comprises the following steps. The pressing rod mechanism is used to apply a preset tension to the zipper to be detected, so that the zipper to be detected is kept in a flat state. The driving positioning mechanism is used to limit the head and tail of the zipper to be detected, and move the zipper to be detected to a target position, so that the double-sided image acquisition module can acquire images of the zipper to be detected. The double-sided image acquisition module is used to acquire the front image and the reverse image of the zipper to be detected. The front image and the reverse image of the zipper to be detected are subjected to defect detection, and a defect detection result of the zipper to be detected is obtained.

[0013] According to a third aspect, a computer program product is provided in an embodiment, comprising computer programs and / or instructions, which, when executed by a processor, implement the zipper defect detection method.

[0014] According to the zipper defect detection system, method and computer program product of the above embodiments, the zipper defect detection system comprises a driving positioning mechanism, a pressure rod mechanism, a double-sided image acquisition module and a defect detection module. The driving positioning mechanism is used to limit the head and tail of the zipper to be detected and drive the zipper to be detected to move to a target position. By limiting the head and tail of the zipper to be detected, the lateral deviation or shaking of the zipper in high-speed movement is effectively prevented, and the zipper to be detected is smoothly moved to the target position. The pressure rod mechanism is used to apply a preset tension to the zipper to be detected before the driving positioning mechanism drives the zipper to be detected to move to the target position, so that the zipper to be detected maintains a flat state before the double-sided image acquisition module acquires the image of the zipper to be detected, and the possible wrinkles, bending or wavy deformation of the zipper to be detected in storage or conveying is eliminated, thereby improving the optical detection accuracy from the source. The defect detection module is used to detect the front image and back image of the zipper to be detected to obtain the defect detection result of the zipper to be detected, thereby improving the accuracy of the zipper defect detection. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a structural schematic diagram of a zipper defect detection system according to an embodiment of the present application; Figure 2 FIG. 2 is a structural schematic diagram of a zipper defect detection system according to another embodiment of the present application; Figure 3 FIG. 3 is a structural schematic diagram of a zipper defect detection system according to another embodiment of the present application; Figure 4 FIG. 4 is a flowchart of a zipper defect detection method according to an embodiment of the present application. DETAILED DESCRIPTION

[0016] The present application will be further described in detail below with specific embodiments and with reference to the accompanying drawings. In different embodiments, similar elements are denoted by similar reference numerals. In the following embodiments, many details are described in order to make the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different cases, or can be replaced by other elements, materials or methods. In some cases, some operations related to the present application are not shown or described in the specification in order to avoid the core part of the present application being overwhelmed by too much description, and it is not necessary for those skilled in the art to understand the related operations in detail according to the description in the specification and the general technical knowledge in the art.

[0017] In addition, features, operations, or steps described in the specification can be combined in any suitable manner without departing from the scope of various embodiments. Similarly, steps in the methods described can be performed in an order different from the order described without departing from the scope of the various embodiments. Therefore, the various embodiments described and their equivalents can be combined in any suitable manner without departing from the scope of the various embodiments.

[0018] The serial numbers of components in the specification, such as "first", "second", etc., are used only to distinguish the described objects, and do not have any sequential or technical meaning. The "connection" and "coupling" in the present application include direct and indirect connections (couplings) unless otherwise specified.

[0019] The existing zipper defect detection technology faces the following core challenges: (1) detection error caused by flexible deformation: as a flexible non-rigid material, the zipper is prone to data deviation when measuring key parameters such as tooth position, spacing, and engagement strength due to deformation. Defect morphology (such as distortion and warping) may also be hidden or misjudged due to deformation, resulting in decreased detection accuracy; (2) technical bottleneck of the turning operation: traditional detection requires turning the zipper through complex mechanical structures to complete front and back detection, which not only makes the equipment complex and costly, but also increases maintenance difficulty and production cost.

[0020] To solve the above problems, the embodiment of the present application provides a zipper defect detection system, which comprises: a driving positioning mechanism, a pressure rod mechanism, a double-sided image acquisition module and a defect detection module; the driving positioning mechanism is used to limit the head and tail of the zipper to be detected and drive the zipper to be detected to move to a target position, so that the double-sided image acquisition module can acquire the image of the zipper to be detected; the pressure rod mechanism is used to apply a preset tension to the zipper to be detected before the driving positioning mechanism drives the zipper to be detected to move to the target position, so that the zipper to be detected maintains a flat state; the double-sided image acquisition module is used to acquire the front and back images of the zipper to be detected; and the defect detection module is used to detect defects of the front and back images of the zipper to be detected to obtain the defect detection result of the zipper to be detected.

[0021] The zipper defect detection system provided by the embodiment of the present application will be described below with reference to the accompanying drawings.

[0022] Figure 1 The structure of the zipper defect detection system provided by the embodiment of the present application is shown, which comprises: a driving positioning mechanism 101, a pressure rod mechanism 102, a double-sided image acquisition module 103 and a defect detection module 104, which will be described in detail below.

[0023] The driving positioning mechanism 101 is used to limit the head and tail of the zipper to be detected and drive the zipper to move to a target position, so that the double-sided image acquisition module 103 can acquire the image of the zipper to be detected.

[0024] Specifically, before the zipper to be detected moves to the target position, the head and tail of the zipper to be detected are limited by the driving positioning mechanism 101, which means that the head and tail of the zipper to be detected are restrained by positioning components such as mechanical positioning buckles or pneumatic clamps. A high-precision linear motor is used to drive the traction mechanism to drive the zipper to be detected to move at a constant speed to the target position, so that the double-sided image acquisition module 103 can acquire the image of the zipper to be detected.

[0025] In the embodiment of the application, by limiting the head and tail of the zipper to be detected, the lateral deviation or shaking of the zipper to be detected during high-speed movement is effectively prevented. The high-precision linear motor is used to drive the traction mechanism to drive the zipper to be detected to move smoothly at a constant speed to the target position, so as to ensure that the position of the zipper to be detected is stable during image acquisition by the double-sided image acquisition module, and the image of the zipper to be detected is acquired without blurring or misalignment.

[0026] The compression rod mechanism 102 is used to apply a preset tension to the zipper to be detected before the driving positioning mechanism 101 drives the zipper to move to the target position, so that the zipper to be detected can maintain a flat state.

[0027] Specifically, before the driving positioning mechanism 101 drives the zipper to be detected to move to the target position, a compression rod mechanism 102 with adjustable height is added. The compression rod mechanism 102 applies a uniform and moderate longitudinal preset tension to the zipper to be detected to eliminate possible wrinkles, bending or wave deformation of the zipper to be detected during storage or transportation, so as to ensure that the zipper to be detected is in a flat and stress-free state when moving to the target position, thereby improving the optical detection accuracy from the source.

[0028] In the embodiment of the application, the compression rod mechanism 102 is used to eliminate the possible flexible deformation of the zipper to be detected, thereby improving the accuracy of subsequent zipper defect detection.

[0029] The double-sided image acquisition module 103 is used to acquire the front and back images of the zipper to be detected.

[0030] Specifically, the double-sided image acquisition module 103 includes a double-sided linear array camera and a matching strip light source. A high-resolution linear array camera and a matching strip light source are installed above and below the target position. When the zipper to be detected moves to the target position, the high-resolution linear array cameras above and below are triggered by an external trigger signal to synchronize exposure and acquire the front and back images of the zipper to be detected at one time, thereby providing reliable data for subsequent image processing and intelligent recognition.

[0031] In the embodiments of the present application, through the cooperative shooting of the double-sided linear array camera and the combination of the matching bar light source, the front and back surfaces of the zipper are imaged at one time, and the surface turning operation is completely avoided. At the same time, according to the characteristics of the long strip shape of the zipper to be detected, the linear array camera is used for shooting, which can adapt to the detection of zippers with different lengths.

[0032] The defect detection module 104 is configured to perform defect detection on the front surface image and the back surface image of the zipper to be detected to obtain a defect detection result of the zipper to be detected.

[0033] Specifically, the defect detection module 104 can be a processor, and the defect detection module 104 is configured to perform defect detection on the front surface image and the back surface image of the zipper to be detected. The defect detection algorithm such as image segmentation, edge extraction, template matching, gray scale comparison and machine learning classifier is used to detect defects such as missing teeth, deformation, discoloration, stains and poor engagement. According to the detected defects of the zipper, a detection report and quality statistics can be further generated.

[0034] In the embodiments of the present application, the front surface image and the back surface image of the zipper to be detected are subjected to defect detection, which significantly improves the detection accuracy, comprehensive coverage, adaptability to complex scenes and optimizes the detection process.

[0035] According to the zipper defect detection system in the above embodiments, the zipper defect detection system comprises a driving positioning mechanism, a pressure rod mechanism, a double-sided image acquisition module and a defect detection module. The driving positioning mechanism is configured to limit the head and tail of the zipper to be detected and drive the zipper to be detected to move to a target position. By limiting the head and tail of the zipper to be detected, the lateral deviation or shaking of the zipper during high-speed movement is effectively prevented, and the zipper to be detected is smoothly moved to the target position. The pressure rod mechanism is configured to apply a preset tension to the zipper to be detected before the driving positioning mechanism drives the zipper to be detected to move to the target position, so that the zipper to be detected maintains a flat state before the double-sided image acquisition module acquires the image of the zipper to be detected when moving to the target position, and eliminates the wrinkles, bending or wavy deformation of the zipper to be detected that may occur during storage or transportation, thereby improving the optical detection accuracy from the source. The defect detection module is configured to perform defect detection on the front surface image and the back surface image of the zipper to be detected to obtain a defect detection result of the zipper to be detected, thereby improving the accuracy of the zipper defect detection.

[0036] In some embodiments, the zipper defect detection system further comprises an operation table, wherein the operation table is provided with a light transmission hole, and the target position is the position of the light transmission hole; and the operation table is configured to carry the zipper to be detected.

[0037] Specifically, a light-transmitting hole is arranged on the operation table, and the target position is the position of the light-transmitting hole. Therefore, the zipper to be detected is moved to the light-transmitting hole on the operation table for carrying the zipper to be detected by driving the positioning mechanism 101, so that the front and back images of the zipper to be detected can be acquired by the double-sided image acquisition module 103 arranged above and below the light-transmitting hole.

[0038] In the embodiment of the application, the light-transmitting hole is arranged on the operation table, and the double-sided image acquisition module 103 is arranged to realize the synchronous imaging of the front and back surfaces of the zipper to be detected during the movement of the zipper to be detected through the light-transmitting hole, without the need of a mechanical surface turning device.

[0039] In some embodiments, the double-sided image acquisition module 103 includes an upper light source 103a, an upper linear array camera 103b, a lower light source 103c and a lower linear array camera 103d. The upper light source 103a and the upper linear array camera 103b are arranged above the light-transmitting hole, and the lower light source 103c and the lower linear array camera 103d are arranged below the light-transmitting hole. The upper light source 103a is used to provide illumination for the front surface of the zipper to be detected, the upper linear array camera 103b is used to acquire the front image of the zipper to be detected, the lower light source 103c is used to provide illumination for the back surface of the zipper to be detected, and the lower linear array camera 103d is used to acquire the back image of the zipper to be detected.

[0040] Specifically, the upper light source 103a and the upper linear array camera 103b are arranged directly above the light-transmitting hole, and the lower light source 103c and the lower linear array camera 103d are coaxial with the upper linear array camera 103b and arranged directly below the light-transmitting hole.

[0041] In the embodiment of the application, the upper linear array camera 103b and the lower linear array camera 103d are strictly coaxial to ensure the spatial matching of the front and back images of the zipper to be detected without misalignment.

[0042] In some embodiments, the upper light source 103a and the lower light source 103c are low-angle diffuse linear light sources. The upper light source 103a and the lower light source 103c are symmetrically distributed to provide uniform and shadow-free illumination for the zipper to be detected, thereby reducing the interference of tooth surface reflection or shadow.

[0043] In some embodiments, the shape of the light-transmitting hole is a rectangular line, and the length of the light-transmitting hole is greater than the length of the photosensitive chip array of the upper linear array camera 103b or the lower linear array camera 103d.

[0044] Specifically, a narrow rectangular light-transmitting hole is arranged in the center of the horizontal operation table. The length of the light-transmitting hole is slightly greater than the length of the photosensitive chip array of the upper linear array camera 103b or the lower linear array camera 103d, which ensures that the entire width of the zipper to be detected is covered and avoids the lack of field of view, so as to realize the acquisition of accurate front and back images of the zipper to be detected.

[0045] In some embodiments, the driving positioning mechanism 101 comprises a positioning component 101a, a traction mechanism 101b, and a driving motor 101c, the positioning component 101a is used to limit the head and tail of the zipper to be detected, the traction mechanism 101b is used to drive the zipper to be detected to move, and the driving motor 101c is used to drive the traction mechanism 101b to work.

[0046] Specifically, the positioning component 101a can be two small mechanical positioning buckles or pneumatic clamps, and the driving motor 101c can be a high-precision linear motor.

[0047] In some embodiments, the speed of the driving motor 101c and the line scanning frequency of the upper line array camera 103b or the lower line array camera 103d satisfy a preset matching formula, and the expression of the matching formula is: , wherein F is the line scanning frequency of the upper line array camera 103b or the lower line array camera 103d, V is the speed of the driving motor 101c, N is the resolution of the upper line array camera 103b or the lower line array camera 103d, and C is the field of view width.

[0048] In the embodiments of the present application, the speed of the driving motor 101c and the line scanning frequency of the upper line array camera 103b or the lower line array camera 103d are accurately matched, so as to avoid blurring or stretching of the front image and the back image of the zipper to be detected. The speed of the driving motor 101c can be 0.5 m / s to 2 m / s, which is adjusted according to the resolution and accuracy requirements of the upper line array camera 103b or the lower line array camera 103d.

[0049] In some embodiments, the height of the pressing rod mechanism 102 has a mapping relationship with the specifications of the zipper to be detected, wherein the specifications of the zipper to be detected include the model, the width, and the thickness.

[0050] For example, the height of the pressing rod mechanism 102 is adapted to the specifications 3#, 5#, and 8# of the common zipper to be detected.

[0051] In the embodiments of the present application, the height of the pressing rod mechanism 102 is adapted to the specifications of the zipper to be detected, so as to ensure that the zipper to be detected is effectively straightened and avoid damage to the zipper to be detected.

[0052] Please refer to Figure 2 The zipper to be detected is placed in front of the light transmission hole, at this time, the upper light source 103a, the upper line array camera 103b, the lower light source 103c, and the lower line array camera 103d have been set, and are waiting to start detecting the zipper to be detected. Please refer to Figure 3 , the zipper to be detected has passed through the light transmission hole, at this time, the upper line array camera 103b and the lower line array camera 103d will shoot the front image and the back image of the zipper to be detected.

[0053] In the embodiment of the present application, the to-be-detected zipper is laid flat on the feeding mechanism, and the head and tail thereof are manually or automatically fixed on the positioning components of the driving positioning mechanism 101. The height of the pressure rod mechanism 102 is adjusted to a preset position according to the specification of the to-be-detected zipper, so as to ensure that the to-be-detected zipper is straightened without being damaged. The upper light source 103a, the lower light source 103c, the upper line array camera 103b and the lower line array camera 103d, and the linear motor are sequentially turned on, the to-be-detected zipper passes through the light transmission hole at a constant speed, the double line array cameras above and below the light transmission hole synchronously collect the front and back images of the to-be-detected zipper, and the front and back images are subjected to defect detection by the defect detection module 104 to obtain the defect detection result of the to-be-detected zipper. The core design of the present application is based on fixed path guidance and synchronous shooting by double-sided line array cameras, and provides an innovative optical detection method, which improves the accuracy of defect detection.

[0054] Please refer to Figure 4 The embodiment of the present application provides a zipper defect detection method, which is applied to a zipper defect detection system. The zipper defect detection system comprises a driving positioning mechanism 101, a pressure rod mechanism 102 and a double-sided image acquisition module 103. The zipper defect detection method comprises steps S10 to S40, which are described in detail below.

[0055] Step S10: A preset tension is applied to the to-be-detected zipper by the pressure rod mechanism 102, so that the to-be-detected zipper remains in a flat state.

[0056] Step S20: The head and tail of the to-be-detected zipper are limited by the driving positioning mechanism 101, and the to-be-detected zipper is moved to a target position, so that the double-sided image acquisition module 103 can acquire the image of the to-be-detected zipper.

[0057] Step S30: The front and back images of the to-be-detected zipper are acquired by the double-sided image acquisition module 103.

[0058] Step S40: The front and back images of the to-be-detected zipper are subjected to defect detection to obtain the defect detection result of the to-be-detected zipper.

[0059] The embodiment of the present application provides a computer program product comprising a computer program and / or instructions, which are executed by a processor to implement the zipper defect detection method.

[0060] Those skilled in the art can understand that all or part of the functions of various methods in the above embodiments can be realized by hardware or by a computer program. When all or part of the functions in the above embodiments are realized by a computer program, the program can be stored in a computer readable storage medium, which can include a read-only memory, a random access memory, a magnetic disk, an optical disk, a hard disk, and the like. The above functions are realized by executing the program by a computer. For example, the program is stored in a memory of a device, and the above functions are realized by executing the program in the memory by a processor. In addition, when all or part of the functions in the above embodiments are realized by a computer program, the program can also be stored in a storage medium such as a server, another computer, a disk, an optical disk, a flash disk, or a mobile hard disk, and is saved in a memory of a local device by downloading or copying, or the system of the local device is updated, and the above functions are realized by executing the program in the memory by a processor.

[0061] The above application of specific examples to the present application is described, which is only used to help understand the present application and does not limit the present application. For those skilled in the art, according to the idea of the present application, a number of simple deductions, deformations or substitutions can be made.

Claims

1. A zipper defect detection system, characterized in that, include: Drive positioning mechanism, pressure bar mechanism, double-sided image acquisition module and defect detection module; The driving positioning mechanism is used to restrict the head and tail of the zipper to be detected and drive the zipper to be detected to move to the target position so that the double-sided image acquisition module can acquire the image of the zipper to be detected. The pressure bar mechanism is used to apply a preset tension to the zipper to be tested before the drive positioning mechanism moves the zipper to be tested to the target position, so as to keep the zipper to be tested flat. The double-sided image acquisition module is used to acquire the front and back images of the zipper to be detected; The defect detection module is used to perform defect detection on the front and back images of the zipper to be detected, and obtain the defect detection result of the zipper to be detected.

2. The zipper defect detection system as described in claim 1, characterized in that, The zipper defect detection system also includes an operating table, wherein a light-transmitting hole is provided on the operating table, and the target position is the location of the light-transmitting hole; the operating table is used to support the zipper to be inspected.

3. The zipper defect detection system as described in claim 2, characterized in that, The dual-sided image acquisition module includes an upper light source, an upper line scan camera, a lower light source, and a lower line scan camera, wherein the upper light source and the upper line scan camera are positioned above the light-transmitting hole, and the lower light source and the lower line scan camera are positioned below the light-transmitting hole. The upper light source is used to provide illumination to the front of the zipper to be inspected; The upper linear array camera is used to capture the front image of the zipper to be detected; The lower light source is used to provide illumination to the reverse side of the zipper to be inspected; The lower linear array camera is used to acquire images of the reverse side of the zipper to be inspected.

4. The zipper defect detection system as described in claim 3, characterized in that, The upper light source and the lower light source are low-angle diffused bar light sources.

5. The zipper defect detection system as described in claim 3, characterized in that, The light-transmitting hole is rectangular in shape, and its length is greater than the length of the photosensitive chip array of the upper or lower line array camera.

6. The zipper defect detection system as described in claim 3, characterized in that, The drive positioning mechanism includes a positioning component, a traction mechanism, and a drive motor; The positioning component is used to limit the head and tail of the zipper to be detected; The traction mechanism is used to move the zipper to be tested; The drive motor is used to drive the traction mechanism.

7. The zipper defect detection system as described in claim 6, characterized in that, The speed of the drive motor and the line scanning frequency of the upper or lower line scan camera satisfy a preset matching formula, the expression of which is: Where F is the line scanning frequency of the upper or lower line scan camera, V is the speed of the drive motor, N is the resolution of the upper or lower line scan camera, and C is the field of view width.

8. The zipper defect detection system as described in claim 1, characterized in that, The height of the pressure bar mechanism is mapped to the specifications of the zipper to be tested, wherein the specifications of the zipper to be tested include model, width and thickness.

9. A method for detecting defects in zippers, characterized in that, An application is made in a zipper defect detection system, the zipper defect detection system including a drive positioning mechanism, a pressure bar mechanism, and a double-sided image acquisition module; the zipper defect detection method includes: The pressure bar mechanism is used to apply a preset tension to the zipper to be tested, so that the zipper to be tested remains flat. The drive positioning mechanism is used to restrict the head and tail of the zipper to be detected and move the zipper to be detected to the target position so that the double-sided image acquisition module can acquire the image of the zipper to be detected. The double-sided image acquisition module is used to acquire the front and back images of the zipper to be detected; Defect detection is performed on the front and back images of the zipper to be inspected to obtain the defect detection results of the zipper to be inspected.

10. A computer program product comprising a computer program and / or instructions, characterized in that, When the computer program and / or instructions are executed by the processor, the zipper defect detection method as described in claim 9 is implemented.

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