CN116794242B - Coiled material surface joint detection method and system - Google Patents
Coiled material surface joint detection method and system Download PDFInfo
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- CN116794242B CN116794242B CN202311091811.2A CN202311091811A CN116794242B CN 116794242 B CN116794242 B CN 116794242B CN 202311091811 A CN202311091811 A CN 202311091811A CN 116794242 B CN116794242 B CN 116794242B
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
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- G06T7/00—Image analysis
- G06T7/70—Determining position or orientation of objects or cameras
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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Abstract
The application relates to the technical field of joint detection, and discloses a method and a system for detecting a joint on the surface of a coiled material, wherein the method comprises the following steps: an advance detection device is arranged in front of the detection position, the coiled material moves to pass through the advance detection device and the detection position in sequence, and the distance between the advance detection device and the detection position is-D1-0; when the advanced detection device detects the coiled material joint, sending out a trigger signal and joint distance information and determining the real-time coiled material coiled meter L; when the coiled material joint enters a preset shielding range, the coiled material is not detected, and a prompt message for not detecting the coiled material is sent out; the preset shielding range is-D2 < 0 < D2; and controlling a joint processing system to process the coiled material joint based on the detection prompt information of the coiled material. The application detects the joint and the materials near the joint in advance, gives prompt information when the joint is in place, does not detect the joint before and after, and reduces the influence of defects before and after the joint on the whole quality of the product.
Description
Technical Field
The application relates to the technical field of joint detection, in particular to a method and a system for detecting a joint on the surface of a coiled material.
Background
By means of the machine vision detection system, surface defects of materials can be more efficiently detected, in the pp film detection process, the phenomenon of material splicing can occur, so that materials at the splicing position are defined as joints (hereinafter, the joints are uniformly called as joints), the joints have a plurality of defects of wrinkles, bending and the like, and in the actual delivery process, materials near the joints need to be cut off and are not sold. For a visual detection system, defects of the joint can be uniformly reported, and the overall quality judgment of the material is affected.
In the prior art, only the joint is detected, and the joint and materials nearby the joint are not detected in advance.
Disclosure of Invention
The application provides a method and a system for detecting a joint on the surface of a coiled material, which are used for detecting the joint and materials nearby the joint in advance, giving prompt information when the joint is temporarily connected, and not detecting the joint before and after the joint, so that the influence of defects before and after the joint on the overall quality of a product is reduced.
In order to achieve the above object, the present application provides the following solutions: the application provides a method for detecting a joint on the surface of a coiled material, which comprises the following steps: setting an advanced detection device before a detection position, wherein a coiled material moves to sequentially pass through the advanced detection device and the detection position, and the distance between the advanced detection device and the detection position is-D1-0, wherein 0 is the position of the detection position, and-D1 is the position of the advanced detection device; when the advanced detection device detects the coiled material joint, sending out a trigger signal and joint distance information and determining the real-time coiled material coiled meter L; when the coiled material joint enters a preset shielding range, the coiled material is not detected, and a prompt message for not detecting the coiled material is sent out; the preset shielding range is-D2 < 0 < D2, | -D2 < | -D1|, the distance from the critical position at the right end of the preset shielding range to the detection position is| -D2|, and the distance from the critical position at the left end of the preset shielding range to the detection position is|D2|, wherein| -D2|= |D2|. And controlling a joint processing system to process the coiled material joint based on the detection prompt information of the coiled material.
In one embodiment, when the advance detection device detects the coiled material joint, a trigger signal is sent out, which comprises: when the advance detection device detects the coiled material joint for the first time, a trigger signal is sent out, and when the coiled material joint is continuously detected subsequently, the trigger signal is not sent out any more.
In one embodiment, the method further comprises: when the advance detection device detects the coiled material joint, if the real-time coiled material coiled meter number L < | -D1|+|D2|, the coiled material joint is not processed.
In one embodiment, the method further comprises: when the coiled material is replaced, if the |D2| set by the replaced coiled material N is larger than the |D1| set by the original coiled material M, non-detection processing is carried out, and prompt information for resetting parameters is sent out.
In one embodiment, the advanced detection device is a movable device, and a distance between the advanced detection device and the detection position is adjustable.
In one embodiment, after receiving the prompt information of the reset parameter, acquiring material information of the coiled material, determining the size of the coiled material joint and the processing range of the coiled material joint based on the material information of the coiled material, and determining the preset shielding range of the coiled material based on the processing range of the coiled material joint; determining the position of an advanced detection device based on a preset shielding range of the coiled material; and adjusting the distance between the advanced detection device and the detection position based on the position of the advanced detection device.
In one embodiment, determining a preset shielding range for the web based on the processing range of the web adapter includes: presetting a processing range matrix H0 of a preset coiled material joint, and setting H0= (H1, H2, H3 and H4), wherein H1 is the processing range of a first preset coiled material joint, H2 is the processing range of a second preset coiled material joint, H3 is the processing range of a third preset coiled material joint, and H4 is the processing range of a fourth preset coiled material joint; presetting a preset shielding range matrix G0, and setting G0= (G1, G2, G3 and G4), wherein G1 is a first preset shielding range, G2 is a second preset shielding range, G3 is a third preset shielding range, G4 is a fourth preset shielding range, and G1 is more than G2 and less than G3 and less than G4;
setting a preset shielding range G of the coiled material according to the relation between the processing range H of the coiled material joint and the processing range of each preset coiled material joint: when H is smaller than H1, selecting the first preset shielding range G1 as a preset shielding range G of the coiled material; when H1 is less than or equal to H2, selecting the second preset shielding range G2 as a preset shielding range G of the coiled material; when H2 is less than or equal to H3, selecting the third preset shielding range G3 as a preset shielding range G of the coiled material; when H3 is less than or equal to H4, selecting the fourth preset shielding range G4 as the preset shielding range G of the coiled material.
In one embodiment, determining the position of the advance detection device based on the preset shielding range of the coiled material includes: determining a distance D3 between the critical position of the left end of the preset shielding range and the advanced detection device based on the feedback time of the trigger signal and the moving speed of the coiled material; determining a distance-D2' from a critical position at the right end of a preset shielding range to the detection position based on the size X of the coiled material joint and the preset shielding range G of the coiled material; and determining that the distance between the advanced detection device and the detection position is D1-0 based on the distance D3 between the critical position at the left end of the preset shielding range and the advanced detection device and the distance D2 between the critical position at the right end of the preset shielding range and the detection position.
In order to achieve the above object, the present application also provides a coil surface joint detection system, including: the detection module is used for detecting the coiled material joint;
the processing module is used for sending a trigger signal and joint distance information and determining the real-time coiled material rolled meter number L when the advanced detection device detects the coiled material joint; when the coiled material joint enters a preset shielding range, the coiled material is not detected, and a prompt message for not detecting the coiled material is sent out; and controlling a joint processing system to process the coiled material joint based on the detection prompt information of the coiled material.
And the terminal module is used for displaying real-time coiled material coiled meter L, prompting information for not detecting coiled materials, prompting information for resetting parameters and joint distance information.
In one embodiment, the processing module is further configured to, when the advance detection device detects the coil joint, not process the coil joint if the real-time coil number of coiled meters L < | -d1|+|d2|; when the coiled material is replaced, if the |D2| set by the replaced coiled material N is larger than the |D1| set by the original coiled material M, performing non-detection processing and sending out prompt information for resetting parameters; after receiving the prompt information of the reset parameters, acquiring material information of the coiled material, determining the size of a coiled material joint and the processing range of the coiled material joint based on the material information of the coiled material, and determining the preset shielding range of the coiled material based on the processing range of the coiled material joint; determining the position of an advanced detection device based on a preset shielding range of the coiled material; and adjusting the distance between the advanced detection device and the detection position based on the position of the advanced detection device.
The application has the technical effects that: the material near the joint can be detected in advance; the joint is not detected before and after, the influence of the defects before and after the joint on the product quality is reduced, a worker can be prompted, the working efficiency of the worker on the site is improved, and the influence of the defects before and after the joint on the whole product quality is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for detecting a web surface joint according to an embodiment of the present application;
FIG. 2 is a schematic illustration of web surface joint detection provided by an embodiment of the present application;
fig. 3 is a schematic diagram of a coil surface joint detection system provided in an embodiment of the present application.
Wherein, 1, coiled materials; 2. a coil joint; 3. detecting a position; 4. an advanced detection device.
Detailed Description
The following describes in further detail the embodiments of the present application with reference to the drawings and examples. The following examples are illustrative of the application and are not intended to limit the scope of the application.
In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-2, the embodiment discloses a method for detecting a joint on a surface of a coiled material, which includes: step S1, arranging an advance detection device 4 before a detection position 3, and enabling a coiled material to move sequentially through the advance detection device 4 and the detection position 3; the distance between the advanced detection device 4 and the detection position 3 is-D1-0, wherein 0 is the position of the detection position 3, and-D1 is the position of the advanced detection device 4; when the advance detection device 4 detects the coiled material joint 2, sending out a trigger signal and joint distance information and determining the number L of coiled materials 1 in real time; step S2, when the coiled material joint 2 enters a preset shielding range, the coiled material 1 is not detected, and a prompt message for not detecting the coiled material is sent out; the preset shielding range is-D2 < 0 < D2, | -D2 < | -D1|, the distance from the critical position at the right end of the preset shielding range to the detection position 3 is| -D2|, and the distance from the critical position at the left end of the preset shielding range to the detection position 3 is|D2|, wherein| -D2|= |D2|. And step S3, controlling a joint processing system to process the coiled material joint 2 based on the detection prompt information of the coiled material.
It will be appreciated that in the above embodiment, the advance detection device 4 comprises an optical fiber sensor, and the two materials of the roll connector 2 are overlapped and connected together, so that the light transmittance of the location of the roll connector 2 is lower than that of the normal material, and according to this feature, the advance detection of the roll connector 2 can be achieved. If the light transmittance of the web material changes, the fiber sensor sends a trigger signal so that the splice processing system knows that the web splice 2 is forthcoming, and then the splice processing system detects the web splice 2.
In one embodiment, when the advance detection device 4 detects the coiled material joint 2, a trigger signal is sent out, which includes: the trigger signal is sent out when the advance detection device 4 detects the coiled material joint 2 for the first time, and the trigger signal is not sent out when the coiled material joint 2 is continuously detected subsequently.
It will be appreciated that in the above embodiment, since the coil connector 2 has a certain width, the optical fiber sensor will always trigger the signal when detecting the connector, so as to avoid the optical fiber sensor repeatedly triggering the signal, the advance detecting device 4 sends the triggering signal when detecting the coil connector 2 for the first time, and then continuously detects the coil connector 2, the triggering signal is not sent any more, and the repeated sending of the triggering signal is avoided.
In one embodiment, the method further comprises: when the advance detection device 4 detects the coiled material joint 2, if the real-time coiled material 1 turns into the number L < | -D1|+|D2|, the coiled material joint 2 is not processed.
It will be appreciated that in the above embodiments, the coil joint 2 is not processed if the joint is detected as soon as the coil is put into use.
In one embodiment, the method further comprises: when the coiled material is replaced, if the |D2| set by the replaced coiled material N is larger than the |D1| set by the original coiled material M, non-detection processing is carried out, and prompt information for resetting parameters is sent out.
It will be appreciated that in the above embodiment, when the coil 1 is replaced, if the position of the advance detection device 4 set by the original coil M does not meet the position requirement of the advance detection device 4 of the replaced coil N, the position of the advance detection device 4 needs to be reset.
In one embodiment, the advanced detection device 4 is a movable device, and the distance between the advanced detection device 4 and the detection position 3 is adjustable.
It will be appreciated that in the above embodiment, in order to conveniently adjust the distance between the advanced detection device 4 and the detection position 3, the advanced detection device 4 is configured as a movable device.
In one embodiment, after receiving the prompt information of the reset parameters, acquiring material information of the coiled material 1, determining the size of the coiled material joint 2 and the processing range of the coiled material joint 2 based on the material information of the coiled material, and determining the preset shielding range of the coiled material based on the processing range of the coiled material joint 2; determining the position of the advanced detection device 4 based on a preset shielding range of the coiled material; the distance of the advance detection device 4 from the detection position 3 is adjusted based on the position of the advance detection device 4.
It can be understood that in the above embodiment, the coil joints 2 of different coils 1 are different in size, and the processing ranges of the coil joints 2 are also different, so that the positions of the advance detection devices 4 of different coils need to be set according to actual needs, and then the distances between the advance detection devices 4 and the detection positions 3 are adjusted according to the positions of the advance detection devices 4. The processing range of the coil joint 2 comprises a preset shielding range and a coil joint size, namely F=X++ -D2++ D2|, wherein X is the size of the coil joint.
In one embodiment, determining the preset shielding range of the coil based on the processing range of the coil joint 2 includes: presetting a processing range matrix H0 of the preset coiled material joint 2, and setting H0= (H1, H2, H3 and H4), wherein H1 is the processing range of the first preset coiled material joint 2, H2 is the processing range of the second preset coiled material joint 2, H3 is the processing range of the third preset coiled material joint 2, and H4 is the processing range of the fourth preset coiled material joint 2; presetting a preset shielding range matrix G0, and setting G0= (G1, G2, G3 and G4), wherein G1 is a first preset shielding range, G2 is a second preset shielding range, G3 is a third preset shielding range, G4 is a fourth preset shielding range, and G1 is more than G2 and less than G3 and less than G4;
the preset shielding range G of the coil is set according to the relationship between the processing range H of the coil joint 2 and the processing range of each preset coil joint 2: when H is smaller than H1, selecting the first preset shielding range G1 as a preset shielding range G of the coiled material; when H1 is less than or equal to H2, selecting the second preset shielding range G2 as a preset shielding range G of the coiled material; when H2 is less than or equal to H3, selecting the third preset shielding range G3 as a preset shielding range G of the coiled material; when H3 is less than or equal to H4, selecting the fourth preset shielding range G4 as the preset shielding range G of the coiled material.
It can be understood that in the above embodiment, the preset shielding range G of the coiled material is set according to the relationship between the processing range H of the coiled material connector 2 and the processing range of each preset coiled material connector 2, so as to improve the accuracy of setting the preset shielding range G of the coiled material.
It should be noted that the solution of the above preferred embodiment is only one specific implementation manner provided by the present application, and those skilled in the art may select other preset web material matrix H0 and preset B matrix G0 according to actual situations, which does not affect the protection scope of the present application.
In one embodiment, determining the position of the advance detection device 4 based on the preset shielding range of the coiled material includes: determining a distance D3 between the critical position of the left end of the preset shielding range and the advanced detection device 4 based on the feedback time of the trigger signal and the moving speed of the coiled material; determining a distance-D2' from a critical position at the right end of a preset shielding range to the detection position 3 based on the size X of the coiled material joint 2 and the preset shielding range G of the coiled material; the distance between the advance detection device 4 and the detection position 3 is determined to be-D1-0 based on the distance D3 between the critical position at the left end of the preset shielding range and the advance detection device 4, the size X of the coil joint 2, and the distance D2 from the critical position at the right end of the preset shielding range to the detection position 3.
It can be understood that in the above embodiment, the distance D3 between the critical position at the right end of the preset shielding range and the advanced detection device 4 is determined based on the feedback time of the trigger signal and the moving speed of the coiled material, so as to give the response time of the staff and advance prompt to the joint processing system.
In order to achieve the above object, the present application also provides a coil surface joint detection system, as shown in fig. 3, including: the detection module is used for detecting the coiled material joint 2;
the processing module is used for sending out a trigger signal and joint distance information and determining the number L of the coiled material 1 in real time when the advance detection device 4 detects the coiled material joint 2; when the coiled material joint 2 enters a preset shielding range, the coiled material 1 is not detected, and a prompt message for not detecting the coiled material is sent out; and controlling a joint processing system to process the coiled material joint 2 based on the detection prompt information of the non-coiled material.
And the terminal module is used for displaying 1 meter L of real-time coiled material, and not detecting prompt information, resetting prompt information of parameters and joint distance information of the coiled material.
It will be appreciated that in the above embodiments, the web connector 2 and the material near the web connector 2 may be detected in advance; the detection is not carried out before and after the coiled material joint 2, the influence of defects before and after the coiled material joint 2 on the product quality is reduced, a worker can be prompted, the working efficiency of the worker on the site is improved, and the influence of the defects before and after the coiled material joint 2 on the whole product quality is reduced.
In one embodiment, the processing module is further configured to, when the advance detection device 4 detects the coil joint 2, not process the coil joint 2 if the real-time coil 1 is coiled by the number L < | -d1|+|d2|; when the coiled material is replaced, if the |D2| set by the replaced coiled material N is larger than the |D1| set by the original coiled material M, performing non-detection processing and sending out prompt information for resetting parameters; after receiving the prompt information of the resetting parameters, acquiring material information of the coiled material 1, determining the size of the coiled material joint 2 and the processing range of the coiled material joint 2 based on the material information of the coiled material 1, and determining the preset shielding range of the coiled material based on the processing range of the coiled material joint 2; determining the position of the advanced detection device 4 based on a preset shielding range of the coiled material; the distance of the advance detection device 4 from the detection position 3 is adjusted based on the position of the advance detection device 4.
It will be appreciated that in the above embodiments, the repeated emission of trigger signals is avoided. When the coil is replaced, the position of the advance detector 4 is reset. The coil joints 2 of different coils 1 are different in size, and the processing ranges of the coil joints 2 are also different, so that the positions of the advance detection devices 4 of different coils are required to be set according to actual needs, and then the distances between the advance detection devices 4 and the detection positions 3 are adjusted according to the positions of the advance detection devices 4.
It should be understood that, although the steps in the flowcharts of the embodiments of the present application are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in various embodiments may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor do the order in which the sub-steps or stages are performed need to be sequential, but may be performed in rotation or alternating with at least a portion of the sub-steps or stages of other steps or steps.
Those of ordinary skill in the art will appreciate that: the above is only a preferred embodiment of the present application, and the present application is not limited thereto, but it is to be understood that the present application is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (8)
1. A method of inspecting a web surface joint, comprising:
setting an advanced detection device before a detection position, wherein a coiled material moves to sequentially pass through the advanced detection device and the detection position, and the distance between the advanced detection device and the detection position is-D1-0, wherein 0 is the position of the detection position, and-D1 is the position of the advanced detection device;
when the advanced detection device detects the coiled material joint, sending out a trigger signal and joint distance information and determining the real-time coiled material coiled meter L;
when the coiled material joint enters a preset shielding range, the coiled material is not detected, and a prompt message for not detecting the coiled material is sent out; the preset shielding range is-D2 < 0 < D2, | -D2 < | -D1|, the distance from the critical position at the right end of the preset shielding range to the detection position is| -D2|, and the distance from the critical position at the left end of the preset shielding range to the detection position is|D2|, wherein| -D2|= |D2|.
Controlling a joint processing system to process the coiled material joint based on the detection prompt information of the coiled material;
when the advance detection device detects the coiled material joint, a trigger signal is sent out, and the method comprises the following steps: when the advance detection device detects the coiled material joint for the first time, a trigger signal is sent out, and when the coiled material joint is continuously detected subsequently, the trigger signal is not sent out any more;
when the advance detection device detects the coiled material joint, if the real-time coiled material coiled meter number L < | -D1|+|D2|, the coiled material joint is not processed.
2. The web surface joint detection method according to claim 1, further comprising: when the coiled material is replaced, if the |D2| set by the replaced coiled material N is larger than the |D1| set by the original coiled material M, non-detection processing is carried out, and prompt information for resetting parameters is sent out.
3. The method of claim 2, wherein the advance detection device is a movable device, and the distance between the advance detection device and the detection position is adjustable.
4. The method for inspecting a surface joint of a web according to claim 3, wherein after receiving the prompt information for resetting the parameters, material information of the web is acquired, a size of the web joint and a processing range of the web joint are determined based on the material information of the web, and a preset shielding range of the web is determined based on the processing range of the web joint; determining the position of an advanced detection device based on a preset shielding range of the coiled material; and adjusting the distance between the advanced detection device and the detection position based on the position of the advanced detection device.
5. A web surface joint detection method according to claim 3, wherein determining a preset shielding range of the web based on the processing range of the web joint comprises:
presetting a processing range matrix H0 of a preset coiled material joint, and setting H0= (H1, H2, H3 and H4), wherein H1 is the processing range of a first preset coiled material joint, H2 is the processing range of a second preset coiled material joint, H3 is the processing range of a third preset coiled material joint, and H4 is the processing range of a fourth preset coiled material joint;
presetting a preset shielding range matrix G0, and setting G0= (G1, G2, G3 and G4), wherein G1 is a first preset shielding range, G2 is a second preset shielding range, G3 is a third preset shielding range, G4 is a fourth preset shielding range, and G1 is more than G2 and less than G3 and less than G4;
setting a preset shielding range G of the coiled material according to the relation between the processing range H of the coiled material joint and the processing range of each preset coiled material joint:
when H is smaller than H1, selecting the first preset shielding range G1 as a preset shielding range G of the coiled material;
when H1 is less than or equal to H2, selecting the second preset shielding range G2 as a preset shielding range G of the coiled material;
when H2 is less than or equal to H3, selecting the third preset shielding range G3 as a preset shielding range G of the coiled material;
when H3 is less than or equal to H4, selecting the fourth preset shielding range G4 as the preset shielding range G of the coiled material.
6. A web surface joint detection method according to claim 3, wherein determining the position of the advance detection device based on the preset shielding range of the web comprises:
determining a distance D3 between the critical position of the left end of the preset shielding range and the advanced detection device based on the feedback time of the trigger signal and the moving speed of the coiled material;
determining a distance-D2' from a critical position at the right end of a preset shielding range to the detection position based on the size X of the coiled material joint and the preset shielding range G of the coiled material;
and determining that the distance between the advanced detection device and the detection position is D1-0 based on the distance D3 between the critical position at the left end of the preset shielding range and the advanced detection device and the distance D2 between the critical position at the right end of the preset shielding range and the detection position.
7. A test system for performing the method for testing a web surface joint of claim 1, comprising: the detection module is used for detecting the coiled material joint;
the processing module is used for sending a trigger signal and joint distance information and determining the real-time coiled material rolled meter number L when the advanced detection device detects the coiled material joint; when the coiled material joint enters a preset shielding range, the coiled material is not detected, and a prompt message for not detecting the coiled material is sent out;
and the terminal module is used for controlling the joint processing system to process the coiled material joint based on the detection prompt information of the coiled material.
8. The web surface joint detection system of claim 7, wherein the processing module is further configured to not process the web joint if the real-time web roll count L < | -d1|+|d2| when the web joint is detected by the advance detection device; when the coiled material is replaced, if the |D2| set by the replaced coiled material N is larger than the |D1| set by the original coiled material M, performing non-detection processing and sending out prompt information for resetting parameters; after receiving the prompt information of the reset parameters, acquiring material information of the coiled material, determining the size of a coiled material joint and the processing range of the coiled material joint based on the material information of the coiled material, and determining the preset shielding range of the coiled material based on the processing range of the coiled material joint; determining the position of an advanced detection device based on a preset shielding range of the coiled material; and adjusting the distance between the advanced detection device and the detection position based on the position of the advanced detection device.
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| US4238261A (en) * | 1978-10-02 | 1980-12-09 | The Black Clawson Company | Method for forming a zero tail length splice in a moving web |
| CN202321726U (en) * | 2011-11-15 | 2012-07-11 | 广东百顺纸品有限公司 | Material coil with easy-to-identify tail end |
| CN203687979U (en) * | 2013-12-10 | 2014-07-02 | 东莞永钜电子有限公司 | Automatic testing machine for coiled conductive film feature |
| CN206142517U (en) * | 2016-09-02 | 2017-05-03 | 广东天骄建材有限公司 | Waterproofing membrane deviation correcting device |
| CN212411062U (en) * | 2020-05-21 | 2021-01-26 | 北京东方雨虹防水技术股份有限公司 | Coiled material joint early warning system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE541463C2 (en) * | 2017-10-06 | 2019-10-08 | Sealwacs Ab | Plastic welding sensor |
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|---|---|---|---|---|
| US4238261A (en) * | 1978-10-02 | 1980-12-09 | The Black Clawson Company | Method for forming a zero tail length splice in a moving web |
| CN202321726U (en) * | 2011-11-15 | 2012-07-11 | 广东百顺纸品有限公司 | Material coil with easy-to-identify tail end |
| CN203687979U (en) * | 2013-12-10 | 2014-07-02 | 东莞永钜电子有限公司 | Automatic testing machine for coiled conductive film feature |
| CN206142517U (en) * | 2016-09-02 | 2017-05-03 | 广东天骄建材有限公司 | Waterproofing membrane deviation correcting device |
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