CN212693619U - Flexible membrane material surface defect detection device and system - Google Patents
Flexible membrane material surface defect detection device and system Download PDFInfo
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- CN212693619U CN212693619U CN202021822091.4U CN202021822091U CN212693619U CN 212693619 U CN212693619 U CN 212693619U CN 202021822091 U CN202021822091 U CN 202021822091U CN 212693619 U CN212693619 U CN 212693619U
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Abstract
For the surface defect detection device who overcomes current flexible membrane material have unable removal, repeatability poor and easily receive the problem of external disturbance influence testing result, the utility model provides a flexible membrane material surface defect detection device, including casing, camera and membrane material anchor clamps, the casing is provided with the mouth of making a video recording that is used for surveing flexible membrane material, the camera set up in the casing, the camera is used for receiving the light formation of image mouth, membrane material anchor clamps be provided with be used for with the centre gripping mouth of the flexible membrane material of mouth cooperation centre gripping of making a video recording, the centre gripping mouth with the mouth detachable butt of making a video recording. And simultaneously, the utility model also discloses a system including above-mentioned flexible membrane material surface defect detection device. The utility model provides a flexible membrane material surface defect detection device can effectively improve convenience, the rate of accuracy that flexible membrane material surface defect detected, reduces the misrecognition rate.
Description
Technical Field
The utility model belongs to the technical field of surface defect detects, concretely relates to flexible membrane material surface defect detection device and system.
Background
The flexible film generally includes various organic polymer films and functional films obtained by coating or vacuum coating one or more layers of films on the film as a substrate. With the explosive development of the novel flexible electronic device and the flexible display industry, the demands of high-performance flexible functional film materials such as Liquid Crystal Polymer (LCP) films, Polyimide (PI) films, optical films, water vapor high-barrier films, lithium battery diaphragms and the like are greatly increased, and meanwhile, the requirements on the process control of products are higher and higher. However, the high-end flexible functional film in China is still in a large gap with the foreign technical level no matter the base material is or the subsequent film coating process is carried out. One of the very important problems is that the quality control of the film surface is not good enough, and various surface defects such as dust, scratch, pinhole, oil stain and the like of different types greatly affect the process of the product, so that the performance of the product is severely restricted.
The detection of surface defects in materials is typically by optical imaging, assisted by manual or machine vision methods for defect identification. Different from a measured object made of common rigid materials, the flexible film is not well fixed and has the characteristic of bending deformation, the surface detection of the flexible film has high requirements on a polishing mode, surface flatness and focusing stability, and particularly the transparent film has weak response to illumination, so that the detection difficulty is higher.
The surface defect detection device of the existing flexible membrane material has the following problems:
(1) the surface condition of different positions on the production line can not be conveniently measured due to the fixed position installation and the incapability of moving, so that the comparative analysis can be carried out in time. The traditional online visual detection belongs to fixed unit detection, and due to cost reasons, the detection equipment cannot be installed after each process of a machine table, so that the defect is difficult to judge in which process of the machine table the defect occurs, and only a range can be defined and a generation source or a more specific generation point cannot be locked;
(2) because the polishing solution and the detection standard are basically customized according to different production line conditions, the polishing solution and the detection standard are not uniform, the repeatability of the detected result is poor, and the detection result cannot be used for transverse comparison analysis of products;
(3) the flexible film material has the property of being capable of being curled and bent, and is easy to move or deform under the influence of external force, so that the image is not focused accurately. And the flexible film material has certain surface undulation degree under the non-tensioning state, and folds are easy to appear if the stress is uneven under the tensioning state.
In summary, there is a need in the art for a solution to the above problems, so as to meet the requirements of portability, practicability, high recognition accuracy, high precision and standardized standards.
SUMMERY OF THE UTILITY MODEL
Surface defect detection device to current flexible membrane material has the problem that can't remove, repeatability is poor and easily receive external disturbance influence testing result, the utility model provides a flexible membrane material surface defect detection device and system.
The utility model provides an above-mentioned technical problem adopted technical scheme as follows:
in one aspect, the utility model provides a flexible membrane material surface defect detection device, including casing, camera and membrane material anchor clamps, the casing is provided with the mouth of making a video recording that is used for surveing flexible membrane material, the camera set up in the casing, the camera is used for receiving the light formation of image mouth, membrane material anchor clamps be provided with be used for with the centre gripping mouth of the flexible membrane material of mouth cooperation centre gripping of making a video recording, the centre gripping mouth with mouth detachable butt makes a video recording.
Optionally, a reducing portion is formed on the outer wall of the camera port, the outer diameter of the reducing portion gradually increases along a direction away from the end portion of the camera port, the clamping port is detachably abutted to the reducing portion, and the inner diameter of the clamping port is larger than the outer diameter of the end portion of the camera port.
Optionally, the film material clamp is a semi-closed cover with an opening at one side, and the film material clamp is magnetically connected with the camera shooting port.
Optionally, the flexible film surface defect detection device further comprises a telecentric lens, and the telecentric lens is arranged in the shell and located between the camera shooting port and the camera.
Optionally, but telecentric lens axial displacement ground set up in the casing, flexible film material surface defect detection device is still including being used for adjusting telecentric lens axial displacement's micromatic setting, micromatic setting includes fixed band, connecting seat and knob, the fixed band encircles and is fixed in on the telecentric lens, just the both ends of fixed band connect in on the connecting seat, the bar hole has been seted up on the connecting seat, the lateral wall in bar hole is provided with profile of tooth portion, the bar hole along with telecentric lens's axial direction parallel's direction extends, the knob rotationally set up in on the casing, the knob part insert in the bar hole, just the knob insert in the part in bar hole is provided with outer ring gear, outer ring gear with the meshing of profile of tooth portion.
Optionally, the flexible film surface defect detection device further includes a prism adapter, the prism adapter is located in the housing, the camera shooting port and the telecentric lens are respectively located in two vertical directions of the prism adapter, and light entering from the camera shooting port passes through the telecentric lens after being adjusted in the direction of the prism adapter and is received by the camera.
Optionally, the casing is for being the handheld casing of L type, the casing includes front end casing, handle shell and tail end interface shell, the front end casing is the tube-shape, make a video recording the mouth form in the tip of front end casing, the one end of handle shell connect in deviate from on the front end casing the one end lateral wall of making a video recording the mouth, tail end interface shell connect in the other end of handle shell, handle shell with front end casing intercommunication, the prism adapter is located in the front end casing with handle shell intercommunication position, telecentric lens with the camera is located in the handle shell.
Optionally, the device for detecting surface defects of a flexible film further comprises an annular light source, and the annular light source is arranged on the inner wall of the camera shooting port in a surrounding manner.
Optionally, flexible membrane material surface defect detection device is still including the line concentration board that is used for integrated control, the line concentration board respectively with the camera with the annular light source electricity is connected, still be provided with the button of shooing on the casing, it connects to shoot the button electricity the line concentration board or the camera, it is used for control to shoot the button the triggering of camera is shot the function.
On the other hand, the utility model provides a flexible membrane material surface defect detecting system, including control terminal and as above flexible membrane material surface defect detection device, control terminal with intercommunication between the flexible membrane material surface defect detection device.
According to the utility model provides a flexible membrane material surface defect detection device has set up and has been used for making a video recording mouthful complex membrane material anchor clamps, when carrying out the surface defect detection of membrane material, the accessible the centre gripping mouth of membrane material anchor clamps with the mouth cooperation of making a video recording carries out the centre gripping to flexible membrane material, simultaneously passes through the camera is made a video recording to flexible membrane material clamping position, because the outer fringe of the flexible membrane material of being made a video recording is fixed by the centre gripping, so can effectively avoid flexible membrane material to receive the effect of external force and take place the unclear problem of focusing that the shake leads to when making a video recording, also avoided the fold bending phenomenon of flexible membrane material itself simultaneously, effectively improve the rate of accuracy that flexible membrane material surface defect detected, reduce the misrecognition rate.
Drawings
FIG. 1 is a schematic view of the flexible film surface defect detection device provided by the present invention;
FIG. 2 is a schematic structural diagram of a device for detecting surface defects of a flexible film according to the present invention;
FIG. 3 is an exploded view of the device for detecting surface defects of flexible film provided by the present invention;
FIG. 4 is a schematic view of the internal structure of the device for detecting surface defects of flexible film provided by the present invention;
FIG. 5 is an exploded view of the inner structure of the device for detecting surface defects of flexible film provided by the present invention;
FIG. 6 is a schematic structural diagram of a system for detecting surface defects of a flexible film according to the present invention;
fig. 7 is a surface image of a flexible film obtained according to an embodiment of the present invention.
The reference numbers in the drawings of the specification are as follows:
1. a housing; 11. a camera port; 111. a diameter reducing portion; 12. a front end housing; 13. a handle housing; 131. a first housing; 132. a second housing; 133. avoiding holes; 14. a tail end interface shell; 15. a first structural connector; 16. a second structural connector; 17. a photographing button; 18. a line concentration plate; 19. a communicating cavity; 2. a camera; 3. a telecentric lens; 31. a fine adjustment device; 311. a knob; 312. fixing belts; 313. a connecting seat; 3131. A strip-shaped hole; 3132. a tooth-shaped portion; 4. a prism adapter; 5. an annular light source; 6. a membrane material clamp; 7. A flexible film material; 8. a control terminal; 9. and connecting the cable.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, an embodiment of the utility model provides a flexible membrane material surface defect detection device, including casing 1, camera 2 and membrane material anchor clamps 6, casing 1 is provided with the mouth of making a video recording 11 that is used for surveing flexible membrane material 7, camera 2 set up in casing 1, camera 2 is used for receiving the light formation of image of mouth of making a video recording 11, membrane material anchor clamps 6 be provided with be used for with the mouth of making a video recording 11 cooperates the centre gripping mouth of flexible membrane material 7 of centre gripping, the centre gripping mouth with the mouth of making a video recording 11 detachable butt.
When the surface defect detection of the film material is carried out, the flexible film material 7 is placed between the clamping opening of the film material clamp 6 and the camera shooting opening 11, the flexible film material 7 can be clamped through the matching of the clamping opening of the film material clamp 6 and the camera shooting opening 11, meanwhile, the camera 2 is used for shooting the clamping position of the flexible film material 7, and the outer edge of the shot flexible film material 7 is clamped and fixed, so that the problem that the flexible film material 7 is shaken under the action of external force to cause focusing is avoided effectively during shooting, the phenomenon that the flexible film material 7 folds and bends is avoided, the accuracy of the surface defect detection of the flexible film material 7 is improved effectively, and the error recognition rate is reduced.
In one embodiment, the outer wall of the imaging port 11 is formed with a reduced diameter portion 111, the outer diameter of the reduced diameter portion 111 gradually increases in a direction away from the end portion of the imaging port 11, the clamping port detachably abuts on the reduced diameter portion 111, and the inner diameter of the clamping port is larger than the outer diameter of the end portion of the imaging port 11.
When flexible membrane material 7 centre gripping in membrane material anchor clamps 6 with when making a video recording between the mouth 11, because the inclined plane that reducing portion 111 formed, the centre gripping mouth with reducing portion 111's cooperation can be fixed with the outer fringe suppression of flexible membrane material 7, thereby outwards stretch the outer fringe of flexible membrane material 7 and play the effect of tensioning simultaneously for flexible membrane material 7 forms more smooth surface of making a video recording, more is favorable to improving the accuracy of surface observation, helps standardization and the standardization that flexible membrane material 7 surface detected.
In an embodiment, the clamping opening is a thin-wall annular structure, correspondingly, the camera opening 11 is a thin-wall annular structure, and the outer edge of the clamping opening is subjected to fillet treatment, so that the flexible film material 7 is prevented from being damaged in the tensioning process.
In an embodiment, the film clamp 6 is a semi-closed cover with one side open, and the film clamp 6 is magnetically connected with the camera port 11.
The film material clamp 6 can be used as a protective cover of the camera port 11 when the surface detection of the flexible film material 7 is not carried out, so that the internal components are protected, dust is prevented from entering the camera port, and the camera port 11 and the film material clamp 6 can generate mutual attraction under a non-contact condition through magnetic connection.
In the present embodiment, a magnet is mounted in the film material holder 6, and a soft magnetic material such as iron, cobalt, nickel, or the like is mounted at the imaging port 11.
In other embodiments, the magnetic connection between the film clamp 6 and the camera port 11 may be provided in other forms, for example, a magnet may be mounted at the camera port 11, a soft magnetic material may be mounted in the film clamp 6, or a magnet may be provided in both the camera port 11 and the film clamp 6.
In one embodiment, the camera 2 is a digital industrial camera in a planar array with a CCD or CMOS light sensing chip, target surface sizes of 1/3, 1/2, 2/3 or 1 inch, pixels of over 200 ten thousand. A black and white camera with a pixel of over 1/2 inches and over 500 million is preferred. Preferably, the camera has two working modes of continuous shooting and hard (external) triggering shooting simultaneously, and in the continuous shooting mode, the camera automatically and continuously captures pictures and transmits image signals to the control terminal 8. In the hard (external) trigger mode, a photographing command is executed and transmitted to the control terminal 8 only when the camera 2 receives a trigger signal of an external switch (e.g., triggered by the switch button 17).
As shown in fig. 4 and 5, in an embodiment, the flexible film surface defect detecting apparatus further includes a telecentric lens 3, and the telecentric lens 3 is disposed in the housing 1 and located between the camera port 11 and the camera 2.
As shown in fig. 3 to 5, in an embodiment, the telecentric lens 3 is axially movably disposed in the housing 1, the surface defect detecting device of the flexible film 7 further includes a fine-tuning device 31 for adjusting the axial displacement of the telecentric lens 3, the fine-tuning device 31 includes a fixing band 312, a connecting seat 313 and a knob 311, the fixing band 312 is fixed on the telecentric lens 3 in a surrounding manner, two ends of the fixing band 312 are connected to the connecting seat 313, a strip hole 3131 is formed on the connecting seat 313, a tooth-shaped portion 3132 is disposed on a side wall of the strip hole 3131, the strip hole 3131 extends along a direction parallel to the axial direction of the telecentric lens 3, the knob 311 is rotatably disposed on the housing 1, a portion of the knob 311 is inserted into the strip hole 3131, and an outer gear ring is disposed on a portion of the knob 311 inserted into the strip hole 3131, the external gear ring is meshed with the toothed portion 3132.
The fine-tuning device 31 is used for fine-tuning the position of the telecentric lens 3, and rotates the knob 311, through the outer gear ring and the matching relation of the tooth-shaped portion 3132 to drive the connecting seat 313 and the fixing band 312 along the axial advance or retreat of the telecentric lens 3 to drive the advance or retreat of the telecentric lens 3, so as to adjust the telecentric lens 3 and the overall position of the camera 2, calibrate the focusing condition of the telecentric lens 3, and obtain a clear picture.
The adjusting distance of the fine adjusting device 31 is preferably-2 mm.
In an embodiment, the camera port 11, the telecentric lens 3 and the camera 2 are located on the same axis, and the flexible film surface defect detection device is in a long cylinder shape.
The space in some practical operation scenes is relatively limited, and the long-cylinder flexible film surface defect detection device cannot extend into the measurement. In order to solve the problem, in another embodiment, the device for detecting surface defects of a flexible film further includes a prism adapter 4, the prism adapter 4 is located in the housing 1, the camera port 11 and the telecentric lens 3 are respectively located in two vertical directions of the prism adapter 4, and light entering from the camera port 11 is received by the camera 2 through the telecentric lens 3 after being adjusted in the direction of the prism adapter 4.
The prism adapter 4 is used for changing the original light path direction, can 90 degrees optical axis of buckling, is used for realizing the holistic special appearance structure of 7 surface defect detection devices of flexible membrane material especially can set up telecentric lens 3 and camera 2's the direction of setting according to particular case under the limited circumstances in actual operating space to all kinds of operational environment of adaptation.
The camera 2 and the telecentric lens 3 are connected through a standard C, CS, F or V type interface. The lens tube of the telecentric lens 3 extends into the opening at one side of the prism adapter 4, and the position can be relatively moved.
As shown in fig. 2 and 3, in this embodiment, the housing 1 is a handheld housing that is L-shaped, the housing 1 includes a front housing 12, a handle housing 13 and a tail interface housing 14, the front housing 12 is cylindrical, the camera port 11 is formed at the end of the front housing 12, one end of the handle housing 13 is connected to the side wall of the end of the camera port 11 that deviates from the front housing 12, the tail interface housing 14 is connected to the other end of the handle housing 13, the handle housing 13 is communicated with the front housing 12, the prism adapter 4 is located in the front housing 12 and is communicated with the handle housing 13, and the telecentric lens 3 and the camera 2 are located in the handle housing.
Will casing 1 sets up to the L type, and the handheld operation of being convenient for, consequently add prism adapter 4 in this embodiment, can buckle the light path according to the demand, can adjust the outward appearance of L type with whole device like this, is convenient for measure in narrow space.
The flexible film surface defect detection device adopts a handheld structure, integrates various functional elements together in a highly compact manner, is portable and easy to use, breaks through the limitation of a fixed surface detection platform, can be used for mobile measurement, collects film surface morphology information at different positions under different working conditions, and detects, analyzes, counts and compares surface image data.
Specifically, the handle housing 13 includes a first housing 131 and a second housing 132, and the first housing 131 and the second housing 132 surround to form an accommodating space for installing the camera 2 and the telecentric lens 3.
The handle housing 13 is provided with an avoiding hole 133 for exposing the knob 311.
In an embodiment, the flexible film surface defect detecting device further includes an annular light source 5, and the annular light source 5 is disposed around an inner wall of the camera 11.
The annular light source 5 is used for providing reinforced light, under the irradiation of the light emitted by the annular light source 5, if the surface of the flexible film 7 has defects such as dust, bulges, depressions, scratches, irregular impurities or bubbles, light scattering is caused, and a part of light passes through the prism adapter 4 and the telecentric lens 3 at the top of the light source and is captured and imaged by the camera 2.
The relative positions of the annular light source 5 and the prism adapter 4 are fixed.
As shown in fig. 4 and 5, in particular, the annular light source 5 and the prism adapter 4 are provided with a first structural connector 15 and a second structural connector 16 to be connected with each other, the first structural connector 15 and the second structural connector 16 surround to form a communication cavity 19, and the annular light source 5 and the prism adapter 4 are respectively located at two ends of the communication cavity 19.
In an embodiment, the surface defect detecting device of the flexible film 7 further comprises a line concentrator 18 for integrated control, and the line concentrator 18 is electrically connected with the camera 2 and the annular light source 5 respectively.
The integrated circuit is arranged in the line concentration board 18, and meanwhile, the integrated circuit is connected with the external connecting cable 9, so that the internal space is effectively utilized, the weight is reduced, and the size is reduced.
In an embodiment, still be provided with on casing 1 and shoot button 17, it is located to shoot button 17 on the handle shell 13, the handheld press switch of being convenient for, it connects to shoot button 17 electricity line concentrator 18 or camera 2, it is used for control to shoot button 17 the trigger of camera 2 function of shooing, it preferably adopts the self-healing point-action button switch who takes the LED display lamp to shoot button 17, and the LED display lamp goes out when loosening, and the LED display lamp is bright when pressing and is sent triggering signal for camera 2 simultaneously, carries out once and shoots the order.
As shown in fig. 6, another embodiment of the present invention provides a system for detecting surface defects of flexible film, which includes a control terminal 8 and a device for detecting surface defects of flexible film as described above, wherein the control terminal 8 and the device for detecting surface defects of flexible film are in communication with each other.
The control terminal 8 is a computer terminal having functions of camera control, image data access, analysis processing, and the like, and may be a personal computer, an industrial control computer, a workstation, and the like. In order to ensure the image processing speed, the CPU is preferably configured to be above Intel i5-7500 and above memory 16 GB.
In one embodiment, the system for detecting the surface defects of the flexible film further comprises a connection cable 9, wherein the connection cable 9 comprises a power supply line and a data transmission line, the power supply line is used for supplying power to the annular light source 5, the camera 2 and the photographing button 17, and the data transmission line is used for transmitting image data between the camera 2 and the control terminal 8. The power supply line is preferably a power supply line with a direct current voltage of 12V or 24V and a current of 0.5A or more, and the data transmission line is preferably a super-five gigabit network line with a GigE interface or a USB3.0 high-speed data line.
In other embodiments, the control terminal 8 and the flexible film surface defect detecting device can communicate with each other in a wireless manner.
The operation steps of the flexible film surface defect detection system are as follows:
a. calibration: and (3) separating the membrane material clamp 6, switching on the power supply, and placing the camera 11 on the surface of the standard sample. The camera 2 is set to a continuous photographing mode in which a dynamic image of the surface of the sample can be displayed at the control terminal 8. And meanwhile, the fine adjustment knob 311 on the side of the handheld probe is adjusted to calibrate the focusing conditions of the camera 2 and the telecentric lens 3 so as to obtain a clear surface picture. In general, the focusing position is not changed after being adjusted, and the step only needs to be operated once when regular maintenance is carried out. The standard sample can adopt a certain surface with obvious defect characteristics, and can be a rigid block sample, a flat plate sample or a flexible film sample.
b. Tensioning the membrane material: the specific area of the flexible film 7 to be tested is placed between the camera port 11 and the film clamp 6, and the film clamp 6 presses and tensions the film under the action of magnetic force to form a stable and flat photographing surface.
c. Acquiring a surface image: set up camera 2 to trigger the mode for hard (outer), carry out the order of once shooing through pressing the button 17 of shooing on the handle shell 13 this moment to transmit corresponding surface image to control terminal 8, figure 7 is the surface image of the membrane material that obtains in the operation of shooing of a certain time, can see out in figure 7, adopts the utility model discloses defect and the background of leveling the surface on the membrane material surface image that obtains demonstrate obvious contrast, can clearly reflect the defect condition on membrane material surface, and can distinguish different defect types such as dust, spot and scratch.
d. And (3) defect analysis: through the image algorithm, the control terminal 8 can analyze and process the defects in the surface image to obtain information such as the type, distribution, size and number of the defects.
e. And (3) comparative analysis: and (d) repeating the steps b, c and d to obtain comparison data among different samples under the condition that a plurality of samples exist, such as different types of membrane materials, different regions, different positions of a production line or different processing conditions.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a flexible membrane material surface defect detection device, its characterized in that, includes casing, camera and membrane material anchor clamps, the casing is provided with the mouth of making a video recording that is used for surveing flexible membrane material, the camera set up in the casing, the camera is used for receiving the light formation of image mouth, membrane material anchor clamps be provided with be used for with the mouth of making a video recording cooperates the centre gripping mouth of the flexible membrane material of centre gripping, the centre gripping mouth with mouth detachable butt of making a video recording.
2. The device for detecting the surface defects of the flexible film material according to claim 1, wherein a reduced diameter portion is formed on an outer wall of the imaging port, an outer diameter of the reduced diameter portion gradually increases in a direction away from an end portion of the imaging port, the clamping port detachably abuts against the reduced diameter portion, and an inner diameter of the clamping port is larger than an outer diameter of the end portion of the imaging port.
3. The device for detecting the surface defects of the flexible film according to claim 1, wherein the film clamp is a semi-closed cover with an opening at one side, and the film clamp is magnetically connected with the camera port.
4. The device for detecting the surface defects of the flexible film according to claim 1, further comprising a telecentric lens disposed in the housing and between the camera and the camera.
5. The apparatus of claim 4, the telecentric lens is axially arranged in the shell in a displaceable manner, the surface defect detection device of the flexible film material also comprises a fine adjustment device for adjusting the axial displacement of the telecentric lens, the fine adjustment device comprises a fixing band, a connecting seat and a knob, the fixing band is fixed on the telecentric lens in a surrounding way, and both ends of the fixing strap are connected on the connecting seat, a strip-shaped hole is arranged on the connecting seat, the side wall of the strip-shaped hole is provided with a tooth-shaped part, the strip-shaped hole extends along the direction parallel to the axial direction of the telecentric lens, the knob is rotatably arranged on the shell, the knob part is inserted into the strip-shaped hole, and the part of the knob inserted into the strip-shaped hole is provided with an outer gear ring, and the outer gear ring is meshed with the toothed part.
6. The device for detecting the surface defects of the flexible film according to claim 4, further comprising a prism adapter, wherein the prism adapter is located in the housing, the image pick-up port and the telecentric lens are respectively located in two vertical directions of the prism adapter, and light entering from the image pick-up port is adjusted by the prism adapter and then received by the camera through the telecentric lens.
7. The device for detecting the surface defects of the flexible film according to claim 6, wherein the housing is a handheld housing in an L shape, the housing includes a front housing, a handle housing and a tail interface housing, the front housing is cylindrical, the image pickup port is formed at an end of the front housing, one end of the handle housing is connected to a sidewall of the front housing, which is away from the image pickup port, the tail interface housing is connected to the other end of the handle housing, the handle housing is communicated with the front housing, the prism adapter is located in the front housing and communicated with the handle housing, and the telecentric lens and the camera are located in the handle housing.
8. The device for detecting the surface defects of the flexible film according to claim 1, further comprising an annular light source, wherein the annular light source is arranged on the inner wall of the camera opening in a surrounding manner.
9. The device for detecting the surface defects of the flexible film according to claim 8, further comprising a line concentrator for integrated control, wherein the line concentrator is electrically connected with the camera and the annular light source, the housing is further provided with a photographing button, the photographing button is electrically connected with the line concentrator or the camera, and the photographing button is used for controlling a triggering photographing function of the camera.
10. A system for detecting surface defects of a flexible film, comprising a control terminal and the device for detecting surface defects of a flexible film according to any one of claims 1 to 9, wherein the control terminal and the device for detecting surface defects of a flexible film are communicated with each other.
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| CN202021822091.4U CN212693619U (en) | 2020-08-26 | 2020-08-26 | Flexible membrane material surface defect detection device and system |
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| CN111965190A (en) * | 2020-08-26 | 2020-11-20 | 深圳市壹倍科技有限公司 | Flexible membrane material surface defect detection device and system |
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| CN111965190A (en) * | 2020-08-26 | 2020-11-20 | 深圳市壹倍科技有限公司 | Flexible membrane material surface defect detection device and system |
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