CN116441174A - Automatic sheet inspection machine - Google Patents

Automatic sheet inspection machine Download PDF

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Publication number
CN116441174A
CN116441174A CN202210045919.7A CN202210045919A CN116441174A CN 116441174 A CN116441174 A CN 116441174A CN 202210045919 A CN202210045919 A CN 202210045919A CN 116441174 A CN116441174 A CN 116441174A
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detection
sheet
area
planar
product
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Suzhou Qinshi Intelligent Technology Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/36—Sorting apparatus characterised by the means used for distribution
    • B07C5/361—Processing or control devices therefor, e.g. escort memory
    • B07C5/362—Separating or distributor mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/36—Sorting apparatus characterised by the means used for distribution
    • B07C5/38—Collecting or arranging articles in groups

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Abstract

全自动片材检测机。本发明公开了模切片材自动光学检测方法及其设备，本发明当检测到产品不合格时，能够自动分拣合格品与不合格品并进行分类堆叠，提高效率的同时保证检测精度，本发明采用4K像素级工业线扫相机检测，尺寸公差可达±0.1mm，面积公差0.01mm2，本发明可以实现模切片材上的产品的尺寸、缺失、重叠、脏污、异物、反向、废料、气泡这六种失效模式自动检测，减少人工提高质量管控，本发明的检测速度可达10m/min，检出率达到99.9％以上。

Fully automatic sheet inspection machine. The invention discloses an automatic optical detection method and equipment for die-cut sheets. When the product is detected as unqualified, the invention can automatically sort qualified products and unqualified products and perform classification and stacking, thereby improving efficiency and ensuring detection accuracy. The invention 4K pixel-level industrial line-scan camera is used for detection, the size tolerance can reach ±0.1mm, and the area tolerance is 0.01mm 2 . Automatic detection of the six failure modes of air bubbles, reducing manual work and improving quality control. The detection speed of the present invention can reach 10m/min, and the detection rate can reach more than 99.9%.

Description

全自动片材检测机Automatic Sheet Inspection Machine

技术领域technical field

本发明涉及片状平面材料视觉检测方法及其设备，属片状平面材料自动检测设备技术领域。The invention relates to a visual detection method and equipment for sheet-like plane materials, and belongs to the technical field of automatic detection equipment for sheet-like plane materials.

背景技术Background technique

对于片状平面材料而言，其是遥控器、打印机、电脑、手机上等不可或缺的用料之一，其用于制作遥控器、打印机、电脑、手机上的线路以及线路通断装置。目前对于片状平面材料的生产来说，在生产完成的最后工序，需要对片材进行检测，以便对其上面的产品情况以及产品位置、异物等进行检测，目前的这种检测一般来说是采用人工完成，人工检测效率较低，难以满足自动化的生产线的生产要求。For sheet-like planar materials, it is one of the indispensable materials for remote controls, printers, computers, mobile phones, etc., and it is used to make circuits and line on-off devices for remote controls, printers, computers, and mobile phones. At present, for the production of sheet-shaped flat materials, in the final process of production, the sheet needs to be inspected in order to inspect the product condition, product position, foreign matter, etc. on it. The current inspection is generally It is done manually, the efficiency of manual detection is low, and it is difficult to meet the production requirements of the automated production line.

本发明针对以上问题，提供片状平面材料自动光学检测方法及其设备，提高片状平面材料的自动检测效率。Aiming at the above problems, the present invention provides an automatic optical detection method and equipment for sheet-like planar materials to improve the automatic detection efficiency of sheet-like planar materials.

发明内容Contents of the invention

为实现上述目的，本发明提供如下技术方案：片状平面材料自动光学检测方法，其特征在于，该方法采用视觉光源系统对片状平面材料上的产品进行检测，以产品为片状平面材料为例，且检测对象至少包括对片状平面材料的尺寸、缺失、重叠、异物、反向、废料、脏污、气泡的分析与检测。其包括以下步骤：In order to achieve the above object, the present invention provides the following technical solutions: a method for automatic optical detection of sheet-like planar materials, characterized in that the method uses a visual light source system to detect products on sheet-like planar materials, and the product is a sheet-like planar material. For example, and the detection objects include at least the analysis and detection of the size, lack, overlap, foreign matter, reverse, waste, dirt, and air bubbles of sheet-like planar materials. It includes the following steps:

(1)上料：上料系统将片状平面材料上升至待取料高度；(1) Feeding: The feeding system raises the flat sheet material to the height to be taken;

(2)取料：取放料系统将产品从上料系统搬运至皮带吸附平台；(2) Retrieving: the pick-and-place system transports the product from the feeding system to the belt adsorption platform;

(3)传送：产品由皮带传送至取像区域；(3) Transmission: the product is transported to the imaging area by the belt;

(4)取像：检测区色标仪感应到产品到达取像区域后，PLC发出拍照信号，视觉光源系统的线扫摄像机拍照并取像；(4) Image acquisition: After the color scale instrument in the detection area senses that the product arrives at the image acquisition area, the PLC sends a signal to take pictures, and the line-scanning camera of the visual light source system takes pictures and takes images;

(5)图像处理：图像处理模块对图像进行处理、图像处理完成后发送给PLC；(5) Image processing: the image processing module processes the image, and sends it to the PLC after the image processing is completed;

(6)分拣：分拣区色标仪检感应到检测后的产品到达分拣区，如果为合格产品，则PLC 发送闭合信号，使分拣系统的气动滑板闭合，将产品导入良品区进行有序堆叠；如果为不合格产品，则PLC发送抬起信号，使分拣系统的气动滑板抬起将不合格产品导入到不良品区进行抛料。而后进行下一产品的检测；(6) Sorting: The color scale instrument in the sorting area detects that the detected product arrives at the sorting area. If it is a qualified product, the PLC sends a closing signal to close the pneumatic slide plate of the sorting system, and the product is introduced into the good product area for processing. Stack in an orderly manner; if it is an unqualified product, the PLC will send a lifting signal to lift the pneumatic slide of the sorting system to guide the unqualified product into the defective product area for throwing. Then proceed to the detection of the next product;

进一步，作为优选，片状平面材料尺寸检测的分析与检测包括以下步骤：Further, preferably, the analysis and detection of the size detection of the flake planar material includes the following steps:

(i)手动框取片状平面材料的检测区域；(i) Manually frame the detection area of the sheet-like planar material;

(ii)对检测区域进行标定，将像素尺寸转换成实际以mm为单位的尺寸(ii) Calibrate the detection area and convert the pixel size into the actual size in mm

(iii)系统根据框取的区域搜索区域内所有需要检测的产品进行图像形状矫正；(iii) The system performs image shape correction for all products to be detected in the search area based on the framed area;

(iiii)拟合需要测量的对象，设定以两个测量对象为一组的测量组，分别测量每组中两个对象之间的尺寸；(iii) Fit the object to be measured, set a measurement group with two measurement objects as a group, and measure the size between the two objects in each group;

其中，框取检测区域包括待检测产品的边界。Wherein, the frame detection area includes the boundary of the product to be detected.

进一步，作为优选，片状平面材料缺失的分析与检测包括以下步骤：Further, preferably, the analysis and detection of the lack of sheet-like planar material includes the following steps:

(a)设定片状平面材料的检测区域；(a) setting the detection area of the sheet-like planar material;

(aa)选定15张左右合格的片状平面材料进行特征训练，生成一张合格品的标准图；(aa) Select 15 or so qualified sheet-like planar materials for feature training, and generate a standard image of a qualified product;

(aaa)设定判断阈值进行差异分析检测，如待检测的区域与标准图相同区域的差异特征超出阈值设定的范围，则断为不合格。(aaa) Set the judgment threshold for difference analysis and detection. If the difference characteristics of the area to be detected and the same area of the standard map exceed the range set by the threshold, it will be judged as unqualified.

其中，框取检测区域包括产品边界、每个片状平面材料的检测边界；检测区域差异阈值可以根据产品情况自行设定。Among them, the frame detection area includes the product boundary and the detection boundary of each sheet-like planar material; the detection area difference threshold can be set according to the product situation.

进一步，作为优选，片状平面材料重叠的分析与检测包括以下步骤：Further, preferably, the analysis and detection of overlapping of sheet-like planar materials includes the following steps:

(b)设定片状平面材料的检测区域；(b) setting the detection area of the sheet-like planar material;

(bb)选定15张左右合格的片状平面材料进行特征训练，生成一张合格品的标准图；(bb) Select 15 or so qualified sheet-like planar materials for feature training, and generate a standard image of a qualified product;

(bbb)设定判断阈值进行差异分析检测，如待检测的区域与标准图相同区域的差异特征超出阈值设定的范围，则断为不合格。(bbb) Set the judgment threshold for difference analysis and detection. If the difference characteristics of the area to be detected and the same area of the standard map exceed the range set by the threshold, it will be judged as unqualified.

其中，框取检测区域包括产品边界、每个片状平面材料的检测边界；检测区域差异阈值可以根据产品情况自行设定。Among them, the frame detection area includes the product boundary and the detection boundary of each sheet-like planar material; the detection area difference threshold can be set according to the product situation.

进一步，作为优选，异物的分析与检测包括以下步骤：Further, preferably, the analysis and detection of foreign matter includes the following steps:

(c)设定片状平面材料的检测区域；(c) setting the detection area of the sheet-like planar material;

(cc)选定15张左右合格的片状平面材料进行特征训练，生成一张合格品的标准图；(cc) Select 15 or so qualified sheet-like planar materials for feature training, and generate a standard image of a qualified product;

(ccc)设定判断阈值进行差异分析检测，如待检测的区域与标准图相同区域的差异特征超出阈值设定的范围，则断为不合格。(ccc) Set the judgment threshold for difference analysis and detection. If the difference characteristics of the area to be detected and the same area of the standard map exceed the range set by the threshold, it will be judged as unqualified.

其中，框取检测区域包括产品边界、每个片状平面材料的检测边界；检测区域差异阈值可以根据产品情况自行设定。Among them, the frame detection area includes the product boundary and the detection boundary of each sheet-like planar material; the detection area difference threshold can be set according to the product situation.

进一步，作为优选，片状平面材料反向的分析与检测包括以下步骤：Further, preferably, the reverse analysis and detection of the sheet-like planar material includes the following steps:

(d)设定片状平面材料的检测区域；(d) setting the detection area of the sheet-like planar material;

(dd)选定15张左右合格的片状平面材料进行特征训练，生成一张合格品的标准图；(dd) Select 15 or so qualified sheet-like planar materials for feature training, and generate a standard image of a qualified product;

(ddd)设定判断阈值进行差异分析检测，如待检测的区域与标准图相同区域的差异特征超出阈值设定的范围，则断为不合格。(ddd) Set the judgment threshold for difference analysis and detection. If the difference characteristics of the area to be detected and the same area of the standard map exceed the range set by the threshold, it will be judged as unqualified.

其中，框取检测区域包括产品边界、每个片状平面材料的检测边界；检测区域差异阈值可以根据产品情况自行设定。Among them, the frame detection area includes the product boundary and the detection boundary of each sheet-like planar material; the detection area difference threshold can be set according to the product situation.

进一步，作为优选，废料的分析与检测包括以下步骤：Further, as preferably, the analysis and detection of waste comprises the following steps:

(e)设定片状平面材料的检测区域；(e) setting the detection area of the sheet-like planar material;

(ee)选定15张左右合格的片状平面材料进行特征训练，生成一张合格品的标准图；(ee) Select 15 or so qualified sheet-like planar materials for feature training, and generate a standard image of a qualified product;

(eee)设定判断阈值进行差异分析检测，如待检测的区域与标准图相同区域的差异特征超出阈值设定的范围，则断为不合格。(eee) Set the judgment threshold for difference analysis and detection. If the difference characteristics of the area to be detected and the same area of the standard map exceed the range set by the threshold, it will be judged as unqualified.

其中，框取检测区域包括产品边界、每个片状平面材料的检测边界；检测区域差异阈值可以根据产品情况自行设定。Among them, the frame detection area includes the product boundary and the detection boundary of each sheet-like planar material; the detection area difference threshold can be set according to the product situation.

进一步，作为优选，脏污的分析与检测包括以下步骤：Further, preferably, the analysis and detection of dirt includes the following steps:

(f)设定片状平面材料的检测区域；(f) setting the detection area of the sheet-like planar material;

(ff)选定15张左右合格的片状平面材料进行特征训练，生成一张合格品的标准图；(ff) Select 15 or so qualified sheet-like planar materials to carry out feature training, and generate a standard map of qualified products;

(fff)设定判断阈值进行差异分析检测，如待检测的区域与标准图相同区域的差异特征超出阈值设定的范围，则断为不合格。(fff) Set the judgment threshold for difference analysis and detection. If the difference characteristics of the area to be detected and the same area of the standard map exceed the range set by the threshold, it will be judged as unqualified.

其中，框取检测区域包括产品边界、每个片状平面材料的检测边界；检测区域差异阈值可以根据产品情况自行设定。Among them, the frame detection area includes the product boundary and the detection boundary of each sheet-like planar material; the detection area difference threshold can be set according to the product situation.

进一步，作为优选，气泡的分析与检测包括以下步骤：Further, preferably, the analysis and detection of air bubbles includes the following steps:

(g)设定片状平面材料的检测区域；(g) setting the detection area of the sheet-like planar material;

(gg)选定15张左右合格的片状平面材料进行特征训练，生成一张合格品的标准图；(gg) Select 15 or so qualified sheet-like planar materials for feature training, and generate a standard image of a qualified product;

(ggg)设定判断阈值进行差异分析检测，如待检测的区域与标准图相同区域的差异特征超出阈值设定的范围，则断为不合格。(ggg) Set the judgment threshold for difference analysis and detection. If the difference characteristics of the area to be detected and the same area of the standard map exceed the range set by the threshold, it will be judged as unqualified.

其中，框取检测区域包括产品边界、每个片状平面材料的检测边界；检测区域差异阈值可以根据产品情况自行设定。Among them, the frame detection area includes the product boundary and the detection boundary of each sheet-like planar material; the detection area difference threshold can be set according to the product situation.

进一步，本发明提供了一种片状平面材料自动光学检测方法所使用的设备，其特征在于：该设备包括机架、皮带吸附传送平台、上料系统、取料系统、分拣系统、视觉相机光源系统、收料系统、PLC控制系统和触屏显示器，其中，Further, the present invention provides a kind of equipment used in the automatic optical detection method of sheet-like planar materials, which is characterized in that: the equipment includes a frame, a belt adsorption transfer platform, a feeding system, a reclaiming system, a sorting system, a visual camera Light source system, receiving system, PLC control system and touch screen display, among which,

所述机架的左右两端分别设置有上料系统和分拣系统，所述机架上位于所述上料系统和分拣系统之间；The left and right ends of the frame are respectively provided with a feeding system and a sorting system, and the frame is located between the feeding system and the sorting system;

所述皮带吸附传送平台位于所述上料系统和分拣系统之间；The belt adsorption conveying platform is located between the feeding system and the sorting system;

所述视觉光源系统位于皮带吸附传送平台上方；The visual light source system is located above the belt adsorption transfer platform;

所述取料系统位于机架左侧，吸嘴通过机械臂支撑于皮带吸附传送平台上方，以便于取料放料；The reclaiming system is located on the left side of the frame, and the suction nozzle is supported above the belt adsorption conveying platform by a mechanical arm, so as to facilitate retrieving and discharging materials;

所述分拣系统位于机架右侧，通过气动滑板的闭合与抬起分拣合格与不合格品；The sorting system is located on the right side of the frame, and the qualified and unqualified products are sorted by closing and lifting the pneumatic slide plate;

所述视觉相机光源系统与所述PLC控制系统控制连接；The visual camera light source system is controlled and connected to the PLC control system;

所述触屏显示器与所述PLC控制系统连接，可实时监控设备的运行情况，且在设备调试状态下，能手动控制所述上料系统、皮带吸附传送平台、取料系统及分拣系统。The touch screen display is connected with the PLC control system, which can monitor the operation of the equipment in real time, and can manually control the feeding system, belt adsorption conveying platform, reclaiming system and sorting system in the equipment debugging state.

进一步，作为优选，所述上料系统通过步进电缸推动托料板完成上料动作，所述取料系统通过升降气缸带动吸盘将片状平面材料抓取到所述皮带吸附传送平台，而后再将片状平面材料从所述皮带吸附传送平台传送至所述视觉相机光源系统下方进行成像，成像结束后传送至所述分拣系统中，所述分拣系统通过气动滑板的闭合与抬起完成良品与不良品的分拣动作，所述触屏显示器可根据需要调节步进模组的运动速度，进而确保走料过程中的的速率及稳定性；Further, as a preference, the feeding system pushes the supporting plate through the stepping electric cylinder to complete the feeding action, and the reclaiming system drives the suction cup through the lifting cylinder to grab the sheet-shaped planar material to the belt adsorption transmission platform, and then Then, the sheet-like planar material is transferred from the belt adsorption transfer platform to the underside of the visual camera light source system for imaging. After the imaging is completed, it is transferred to the sorting system, and the sorting system is closed and lifted by the pneumatic slide. To complete the sorting action of good products and defective products, the touch screen display can adjust the movement speed of the stepping module according to the needs, thereby ensuring the speed and stability of the feeding process;

所述上料系统包括步进电缸，可调节挡板及光纤传感器，所述可调节挡板可以根据料的大小进行调节和兼容，所述光纤传感器位于所述料架上方，对所述料架进行限位，保证出料稳定。The feeding system includes a stepping electric cylinder, an adjustable baffle and an optical fiber sensor. The adjustable baffle can be adjusted and compatible according to the size of the material. The optical fiber sensor is located above the material rack and controls the material. The frame is limited to ensure the stability of the output.

所述取料系统包括升降气缸，机械臂和吸嘴，所述升降气缸负责控制吸嘴的左右移动与机械臂上吸嘴的下降和上升，便于取料。The material reclaiming system includes a lifting cylinder, a mechanical arm and a suction nozzle, and the lifting cylinder is responsible for controlling the left and right movement of the suction nozzle and the falling and rising of the suction nozzle on the mechanical arm, so as to facilitate material retrieving.

所述视觉光源系统至少包括高清摄像机和光源，高清摄像机包括但不限于4096工业线阵相机，其分辨率4096*2，光源包括但不限于白色条光；The visual light source system includes at least a high-definition camera and a light source. The high-definition camera includes but is not limited to a 4096 industrial line scan camera with a resolution of 4096*2. The light source includes but is not limited to a white strip light;

所述分拣系统包括升降气缸驱动的滑板开合导向至良品料架和不良品料架，所述分拣系统位于机架右侧，不良品料架位于滑板下方，良品料架位于滑板右侧，所述分拣系统接收检测完成的料。The sorting system includes a sliding plate driven by a lifting cylinder to open and close and guide to the good product rack and the bad product rack. The sorting system is located on the right side of the frame, the bad product rack is located under the slide plate, and the good product rack is located on the right side of the slide plate. , the sorting system receives the detected materials.

与现有技术相比，本发明的有益效果是：Compared with prior art, the beneficial effect of the present invention is:

本发明当检测到产品不合格时，能够自动分拣合格品与不合格品并，提高效率的同时保证检测精度，本发明采用4096像素级工业线阵相机检测，尺寸公差可达±0.02mm，面积公差 0.01mm2，减少人工提高质量管控，本发明可以实现片状平面材料上的产品尺寸、缺失、重叠、异物、反向、废料、脏污、气泡这八种失效模式自动检测，本发明的检测速度可达10m/min，检出率达到99.9％以上。When the invention detects unqualified products, it can automatically sort qualified products and unqualified products, improve the efficiency and ensure the detection accuracy at the same time. The invention uses a 4096-pixel industrial line array camera for detection, and the size tolerance can reach ±0.02mm. The area tolerance is 0.01mm 2 , reducing manual work and improving quality control. The invention can realize automatic detection of eight failure modes of product size, missing, overlapping, foreign matter, reverse, waste, dirt, and air bubbles on sheet-like planar materials. The detection speed can reach 10m/min, and the detection rate can reach more than 99.9%.

附图说明Description of drawings

图1是本发明片状平面材料自动光学检测设备的结构示意图；Fig. 1 is the structural representation of automatic optical detection equipment of sheet-like planar material of the present invention;

图2是本发明片状平面材料自动光学检测设备的上料区结构示意图；Fig. 2 is the schematic diagram of the structure of the feeding area of the automatic optical detection equipment for sheet-like planar materials of the present invention;

图3是本发明片状平面材料自动光学检测设备的分拣区结构示意图；Fig. 3 is a schematic diagram of the structure of the sorting area of the sheet-like planar material automatic optical detection equipment of the present invention;

图4是本发明片状平面材料自动光学检测方法的分拣结构示意图；Fig. 4 is a schematic diagram of the sorting structure of the automatic optical detection method for sheet-like planar materials of the present invention;

图5是本发明片状平面材料自动光学检测方法的检测区示意图；5 is a schematic diagram of the detection area of the automatic optical detection method for sheet-like planar materials of the present invention;

图6是本发明片状平面材料自动光学检测方法的流程结构示意图；Fig. 6 is a schematic diagram of the process structure of the automatic optical detection method for sheet-like planar materials of the present invention;

图7是本发明片状平面材料自动光学检测方法的相机型号以及参数指标示意图；7 is a schematic diagram of the camera model and parameter indicators of the automatic optical detection method for sheet-shaped planar materials of the present invention;

具体实施方式Detailed ways

下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

本发明提供一种技术方案：如附图1一附图7，本发明的片状平面材料自动光学检测方法所使用的光学检测设备，该设备包括机架1；上料系统2；皮带吸附传送平台3；视觉光源系统4；分拣系统5；收料系统6；PLC控制系统7；显示器8；其中，所述机架1的左右两侧分别设置有上料系统2；分拣系统5；收料系统6，所述机架1位于所述上料系统和分拣系统之间；所述皮带吸附传送平台3上位于所述上料系统和分拣系统之间，同时所述皮带吸附传送平台3上方还设置有所述视觉光源系统4；所述视觉光源系统4和上料系统2，吸附平台3，分拣系统5，收料系统6，均与所述PLC控制系统4控制连接，且所述显示器8也与所述PLC 控制系统7连接，以便将检测信息显示于所述显示器8上；The present invention provides a technical solution: as shown in accompanying drawing 1-accompanying drawing 7, the optical detection equipment used in the automatic optical detection method of sheet-like planar material of the present invention, this equipment comprises frame 1; Feeding system 2; Platform 3; visual light source system 4; sorting system 5; receiving system 6; PLC control system 7; display 8; wherein, the left and right sides of the frame 1 are respectively provided with a feeding system 2; The material receiving system 6, the frame 1 is located between the feeding system and the sorting system; The visual light source system 4 is also arranged above the platform 3; the visual light source system 4 and the feeding system 2, the adsorption platform 3, the sorting system 5, and the receiving system 6 are all connected to the PLC control system 4 for control, And the display 8 is also connected with the PLC control system 7, so that detection information is displayed on the display 8;

在本实施例中：所述上料系统2通过可调节位置的锁块安装在机架1上，以便根据料的大小调整锁块位置，进而确保上料系统能够兼容多种不同大小的片材；所述上料系统包括步进电缸9，片材挡板10，升降气缸11，所述片材挡板10位于步进电缸9上方，所述片材挡板10对片材有限位的作用，所述升降气缸11位于片材挡板10上方，所述升降气缸11起到吸取片材上料至吸附平台的作用；In this embodiment: the feeding system 2 is installed on the frame 1 through an adjustable locking block, so as to adjust the position of the locking block according to the size of the material, thereby ensuring that the feeding system can be compatible with a variety of sheets of different sizes The feeding system includes a stepping electric cylinder 9, a sheet baffle 10, and a lifting cylinder 11, and the sheet baffle 10 is located above the stepping electric cylinder 9, and the sheet baffle 10 has a limit on the sheet The lifting cylinder 11 is located above the sheet baffle plate 10, and the lifting cylinder 11 plays the role of sucking and feeding the sheet to the adsorption platform;

所述视觉光源系统4至少包括高清摄像机和光源，高清摄像机为4096像素级工业线阵相机，其分辨率4096*2，光源为白色条光，在本实施例中，相机的型号以及参数指标如图7。The visual light source system 4 includes at least a high-definition camera and a light source. The high-definition camera is a 4096-pixel industrial line scan camera with a resolution of 4096*2, and the light source is a white strip light. In this embodiment, the camera model and parameters are as follows: Figure 7.

所述分拣系统5包括伸缩气缸12，良品料架13，不良品料架14和分拣气动滑板15，其中，所述良品料架13通过可调节位置的锁块安装在机架1上，位于气动滑板15右侧，以便根据料的大小调整锁块位置，进而确保分拣系统能够兼容多种不同大小的片材；所述不良品料架14固定在机架1上，位于气动滑板15的下方，接收不良品抛料，所述升降气缸12位于气动滑板侧面，起到支撑气动滑板抬起闭合的动作，以分拣良品与不良品。The sorting system 5 includes a telescopic cylinder 12, a good product rack 13, a defective product rack 14 and a sorting pneumatic slide 15, wherein the good product rack 13 is installed on the frame 1 through an adjustable lock block, Located on the right side of the pneumatic slide plate 15, in order to adjust the position of the lock block according to the size of the material, thereby ensuring that the sorting system can be compatible with a variety of sheets of different sizes; The lower part receives defective products and throws them. The lifting cylinder 12 is located on the side of the pneumatic slide to support the movement of lifting and closing the pneumatic slide to sort out good and defective products.

本发明当检测到产品不合格时，能够自动分拣合格品与不合格品并进行分类堆叠，提高效率的同时保证检测精度，本发明采用4096像素级工业线阵相机检测，尺寸公差可达± 0.02mm，面积公差0.01mm2，减少人工提高质量管控，本发明可以实现模切片材上的产品的尺寸、缺失、重叠、异物、反向、废料、脏污、气泡这八种失效模式自动检测，本发明的检测速度可达10m/min，检出率达到99.9％以上。When the invention detects that the product is unqualified, it can automatically sort qualified products and unqualified products and perform classification and stacking, which improves the efficiency and ensures the detection accuracy. The invention uses a 4096-pixel industrial line array camera for detection, and the size tolerance can reach ± 0.02mm, area tolerance 0.01mm 2 , reducing manual work and improving quality control, the invention can realize automatic detection of eight failure modes of products on the die sheet: size, missing, overlapping, foreign matter, reverse, waste, dirt, and air bubbles , the detection speed of the present invention can reach 10m/min, and the detection rate can reach more than 99.9%.

尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (12)

1.本发明公开的一种对于片状平面材料视觉检测装置，可以自动上料、检测、分拣片状产品，提高了检测效率和节省了人力成本，避免了人为因素造成的错漏检，主要用于高效检测片状材料的外观异常及尺寸，其包括以下装置：1. The invention discloses a visual detection device for sheet-like planar materials, which can automatically load, detect, and sort sheet-like products, which improves detection efficiency and saves labor costs, and avoids errors and omissions caused by human factors. It is used to efficiently detect the abnormal appearance and size of sheet materials, which includes the following devices: 1)自动吸附装置：对于薄膜状片型材料，采用y轴z轴前后和上下气缸运行，采用多规格吸嘴利用真空吸附；1) Automatic adsorption device: For film-like sheet materials, the y-axis, z-axis, front and rear and up and down cylinders are used to operate, and multi-specification suction nozzles are used for vacuum adsorption; 2)传送装置：采用皮带式匀速传输，根据所检测产品采用透明或穿孔式皮带，采用伺服电机保证匀速精度；2) Conveying device: Adopt belt-type uniform speed transmission, adopt transparent or perforated belt according to the tested products, and use servo motor to ensure uniform speed accuracy; 3)材料平整装置：对于周边翘起不平整检测材料，采用真空吸附方式平整；3) Material leveling device: For the unevenness detection material around the edge, it is leveled by vacuum adsorption; 4)光学成像装置：采用工业高速相机及镜头，配置补充光源，对匀速通过的片状材料拍照成像；4) Optical imaging device: adopt industrial high-speed camera and lens, configure supplementary light source, and take pictures of sheet materials passing through at a uniform speed; 5)不良品自动分拣装置：采用气动滑板，根据计算机指令，对不良品进行筛选；5) Automatic sorting device for defective products: use pneumatic slide boards to screen defective products according to computer instructions; 6)计算机判别装置：对根据预先录入的检测要求，对拍摄的图像进行判别，并在显示器显示不良区域。6) Computer identification device: according to the pre-recorded detection requirements, the captured images are identified, and the defective areas are displayed on the monitor. 2.片状平面材料自动光学检测方法，其特征在于，该方法采用视觉光源系统对片状平面材料进行检测，以产品模切片材为例，且检测对象至少包括对片状平面材料的尺寸、缺失、重叠、异物、反向、废料、脏污、气泡的分析与检测，其包括以下步骤：2. The method for automatic optical detection of sheet-like planar materials is characterized in that the method uses a visual light source system to detect sheet-like planar materials, taking product die-cut sheets as an example, and the detection objects include at least the size, Analysis and detection of missing, overlapping, foreign matter, reverse, waste, dirt, and air bubbles, which includes the following steps: 1)上料：上料系统将片状平面材料上升至待取料高度；1) Feeding: The feeding system raises the flat sheet material to the height to be taken; 2)取料：取放料系统将产品从上料系统搬运至皮带吸附平台；2) Retrieving: the pick-and-place system transports the product from the feeding system to the belt adsorption platform; 3)传送：产品由皮带传送至取像区域；3) Conveying: the product is conveyed to the imaging area by the belt; 4)取像：检测区色标仪感应到产品到达取像区域后，PLC发出拍照信号，视觉光源系统的线扫摄像机拍照并取像；4) Image acquisition: After the color scale instrument in the detection area senses that the product arrives at the image acquisition area, the PLC sends a signal to take pictures, and the line-scan camera of the visual light source system takes pictures and takes images; 5)图像处理：图像处理模块对图像进行处理、图像处理完成后发送给PLC；5) Image processing: the image processing module processes the image, and sends it to the PLC after the image processing is completed; 6)分拣：分拣区色标仪检感应到检测后的产品到达分拣区，如果为合格产品，则PLC发送闭合信号，使分拣系统的气动滑板闭合，将产品导入良品区进行有序堆叠；如果为不合格产品，则PLC发送抬起信号，使分拣系统的气动滑板抬起将不合格产品导入到不良品区进行抛料。而后进行下一产品的检测；6) Sorting: The color marker in the sorting area detects that the detected product arrives at the sorting area. If it is a qualified product, the PLC sends a closing signal to close the pneumatic slide plate of the sorting system, and the product is introduced into the good product area for effective sorting. If it is an unqualified product, the PLC will send a lifting signal to lift the pneumatic slide plate of the sorting system to guide the unqualified product into the defective product area for throwing. Then proceed to the detection of the next product; 其中，图像处理步骤中，至少包括对片状平面材料的尺寸、缺失、重叠、异物、反向、废料、脏污、气泡的分析与检测。Wherein, the image processing step at least includes the analysis and detection of the size, absence, overlap, foreign matter, reverse, waste, dirt, and air bubbles of the sheet-like planar material. 3.根据权利要求2所述的片状平面材料自动光学检测方法，其特征在于：片状平面材料尺寸检测的分析与检测包括以下步骤：3. The automatic optical inspection method for sheet-like planar material according to claim 2, characterized in that: the analysis and detection of the sheet-like planar material size detection comprises the following steps: 1)手动框取片状平面材料的检测区域；1) Manually frame the detection area of sheet-like planar materials; 2)对检测区域进行标定，将像素尺寸转换成实际以mm为单位的尺寸2) Calibrate the detection area and convert the pixel size into the actual size in mm 3)系统根据框取的区域搜索区域内所有需要检测的产品进行图像形状矫正；3) The system performs image shape correction for all products that need to be detected in the search area based on the framed area; 4)拟合需要测量的对象，设定以两个测量对象为一组的测量组，分别测量每组中两个对象之间的尺寸；4) Fit the object to be measured, set a measurement group with two measurement objects as a group, and measure the size between the two objects in each group; 其中，框取检测区域包括待检测产品的边界。Wherein, the frame detection area includes the boundary of the product to be detected. 4.根据权利要求2所述的片状平面材料自动光学检测方法，其特征在于：片状平面材料缺失的分析与检测包括以下步骤：4. The automatic optical detection method for sheet-shaped planar material according to claim 2, characterized in that: the analysis and detection of the lack of sheet-like planar material comprises the following steps: 1)设定片状平面材料的检测区域；1) Set the detection area of sheet-like planar material; 2)选定15张左右合格的片状平面材料进行特征训练，生成一张合格品的标准图；2) Select about 15 qualified sheet-like planar materials for feature training, and generate a standard map of qualified products; 3)设定判断阈值进行差异分析检测，如待检测的区域与标准图相同区域的差异特征超出阈值设定的范围，则断为不合格；3) Set the judgment threshold for difference analysis and detection. If the difference characteristics of the area to be detected and the same area of the standard map exceed the range set by the threshold, it will be judged as unqualified; 其中，框取检测区域包括产品边界、每个片状平面材料的检测边界；检测区域差异阈值可以根据产品情况自行设定。Among them, the frame detection area includes the product boundary and the detection boundary of each sheet-like planar material; the detection area difference threshold can be set according to the product situation. 5.根据权利要求2所述的片状平面材料自动光学检测方法，其特征在于：片状平面材料重叠的分析与检测包括以下步骤：5. The automatic optical inspection method for sheet-like planar materials according to claim 2, characterized in that: the analysis and detection of the overlap of sheet-like planar materials comprises the following steps: 1)设定片状平面材料的检测区域；1) Set the detection area of sheet-like planar material; 2)选定15张左右合格的片状平面材料进行特征训练，生成一张合格品的标准图；2) Select about 15 qualified sheet-like planar materials for feature training, and generate a standard map of qualified products; 3)设定判断阈值进行差异分析检测，如待检测的区域与标准图相同区域的差异特征超出阈值设定的范围，则断为不合格。3) Set the judgment threshold for difference analysis and detection. If the difference characteristics of the area to be detected and the same area of the standard map exceed the range set by the threshold, it will be judged as unqualified. 6.根据权利要求2所述的片状平面材料自动光学检测方法，其特征在于：异物的分析与检测包括以下步骤：6. The automatic optical detection method for sheet-like planar materials according to claim 2, wherein the analysis and detection of foreign matter comprises the following steps: 1)设定片状平面材料的检测区域；1) Set the detection area of sheet-like planar material; 2)选定15张左右合格的片状平面材料进行特征训练，生成一张合格品的标准图；2) Select about 15 qualified sheet-like planar materials for feature training, and generate a standard map of qualified products; 3)设定判断阈值进行差异分析检测，如待检测的区域与标准图相同区域的差异特征超出阈值设定的范围，则断为不合格。3) Set the judgment threshold for difference analysis and detection. If the difference characteristics of the area to be detected and the same area of the standard map exceed the range set by the threshold, it will be judged as unqualified. 7.根据权利要求2所述的片状平面材料自动光学检测方法，其特征在于：反向的分析与检测包括以下步骤：7. The automatic optical detection method for sheet-like planar material according to claim 2, characterized in that: reverse analysis and detection comprise the following steps: 1)设定片状平面材料的检测区域；1) Set the detection area of sheet-like planar material; 2)选定15张左右合格的片状平面材料进行特征训练，生成一张合格品的标准图；2) Select about 15 qualified sheet-like planar materials for feature training, and generate a standard map of qualified products; 3)设定判断阈值进行差异分析检测，如待检测的区域与标准图相同区域的差异特征超出阈值设定的范围，则断为不合格。3) Set the judgment threshold for difference analysis and detection. If the difference characteristics of the area to be detected and the same area of the standard map exceed the range set by the threshold, it will be judged as unqualified. 8.根据权利要求2所述的片状平面材料自动光学检测方法，其特征在于：废料的分析与检测包括以下步骤：8. The automatic optical detection method for sheet-like planar materials according to claim 2, characterized in that: the analysis and detection of waste comprises the following steps: 1)设定片状平面材料的检测区域；1) Set the detection area of sheet-like planar material; 2)选定15张左右合格的片状平面材料进行特征训练，生成一张合格品的标准图；2) Select about 15 qualified sheet-like planar materials for feature training, and generate a standard map of qualified products; 3)设定判断阈值进行差异分析检测，如待检测的区域与标准图相同区域的差异特征超出阈值设定的范围，则断为不合格。3) Set the judgment threshold for difference analysis and detection. If the difference characteristics of the area to be detected and the same area of the standard map exceed the range set by the threshold, it will be judged as unqualified. 9.根据权利要求2所述的片状平面材料自动光学检测方法，其特征在于：脏污的分析与检测包括以下步骤：9. The automatic optical inspection method for sheet-like planar materials according to claim 2, characterized in that: the analysis and detection of dirt comprises the following steps: 1)设定片状平面材料的检测区域；1) Set the detection area of sheet-like planar material; 2)选定15张左右合格的片状平面材料进行特征训练，生成一张合格品的标准图；2) Select about 15 qualified sheet-like planar materials for feature training, and generate a standard map of qualified products; 3)设定判断阈值进行差异分析检测，如待检测的区域与标准图相同区域的差异特征超出阈值设定的范围，则断为不合格。3) Set the judgment threshold for difference analysis and detection. If the difference characteristics of the area to be detected and the same area of the standard map exceed the range set by the threshold, it will be judged as unqualified. 10.根据权利要求2所述的片状平面材料自动光学检测方法，其特征在于：气泡的分析与检测包括以下步骤：10. The automatic optical detection method for sheet-like planar material according to claim 2, characterized in that: the analysis and detection of air bubbles comprises the following steps: 1)设定片状平面材料的检测区域；1) Set the detection area of the sheet-like planar material; 2)选定15张左右合格的片状平面材料进行特征训练，生成一张合格品的标准图；2) Select about 15 qualified sheet-like planar materials for feature training, and generate a standard map of qualified products; 3)设定判断阈值进行差异分析检测，如待检测的区域与标准图相同区域的差异特征超出阈值设定的范围，则断为不合格。3) Set the judgment threshold for difference analysis and detection. If the difference characteristics of the area to be detected and the same area of the standard map exceed the range set by the threshold, it will be judged as unqualified. 11.根据权利要求1-10任意一项所述的片状平面材料自动光学检测方法所使用的设备，其特征在于：该设备包括机架、吸附平台、上料系统、分拣系统、视觉相机光源系统、收料系统、PLC控制系统和触屏显示器，其中：11. The equipment used in the automatic optical inspection method for sheet-shaped planar materials according to any one of claims 1-10, characterized in that: the equipment includes a frame, an adsorption platform, a feeding system, a sorting system, and a visual camera Light source system, receiving system, PLC control system and touch screen display, among which: 1)所述机架的左右两端分别设置有上料系统和分拣系统，所述机架上位于所述上料系统和分拣系统之间；1) The left and right ends of the frame are respectively provided with a feeding system and a sorting system, and the frame is located between the feeding system and the sorting system; 2)所述皮带吸附传送平台位于所述上料系统和分拣系统之间；2) The belt adsorption conveying platform is located between the feeding system and the sorting system; 3)所述视觉光源系统位于皮带吸附传送平台上方；3) The visual light source system is located above the belt adsorption transfer platform; 4)所述取料系统位于机架左侧，吸嘴通过机械臂支撑于皮带吸附传送平台上方，以便于取料放料；4) The reclaiming system is located on the left side of the frame, and the suction nozzle is supported above the belt adsorption conveying platform through a mechanical arm, so as to facilitate retrieving and discharging; 5)所述分拣系统位于机架右侧，通过气动滑板的闭合与抬起分拣合格与不合格品；5) The sorting system is located on the right side of the rack, and the qualified and unqualified products are sorted by closing and lifting the pneumatic slide plate; 6)所述视觉相机光源系统与所述PLC控制系统控制连接；6) The visual camera light source system is controlled and connected to the PLC control system; 7)所述触屏显示器与所述PLC控制系统连接，可实时监控设备的运行情况，且在设备调试状态下，能手动控制所述上料系统、皮带吸附传送平台、取料系统及分拣系统。7) The touch screen display is connected to the PLC control system, which can monitor the operation of the equipment in real time, and can manually control the feeding system, the belt adsorption conveying platform, the reclaiming system and the sorting system in the equipment debugging state system. 12.根据权利要求11所述的片状平面材料自动光学检测设备，其特征在于：12. The automatic optical inspection equipment for sheet-like planar materials according to claim 11, characterized in that: 1)所述上料系统通过步进电缸推动托料板完成上料动作；1) The feeding system pushes the supporting plate through the stepping electric cylinder to complete the feeding action; 2)所述取料系统通过升降气缸带动吸盘将片状平面材料抓取到所述皮带吸附传送平台，而后再将片状平面材料从所述皮带吸附传送平台传送至所述视觉相机光源系统下方进行成像，成像结束后传送至所述分拣系统中；2) The material retrieving system drives the suction cup through the lifting cylinder to grab the sheet-shaped flat material to the belt adsorption delivery platform, and then transfers the sheet-like flat material from the belt adsorption delivery platform to the underside of the visual camera light source system Carry out imaging, and transfer to the sorting system after imaging; 3)所述分拣系统通过气动滑板的闭合与抬起完成良品与不良品的分拣动作；3) The sorting system completes the sorting action of good products and defective products by closing and lifting the pneumatic slide plate; 4)所述触屏显示器可根据需要调节步进模组的运动速度，进而确保走料过程中的的速率及稳定性；4) The touch screen display can adjust the movement speed of the stepping module as required, thereby ensuring the speed and stability of the material feeding process; 5)所述上料系统包括步进电缸，可调节挡板及光纤传感器；5) The feeding system includes a stepping electric cylinder, an adjustable baffle and an optical fiber sensor; 6)所述可调节挡板可以根据料的大小进行调节和兼容，所述光纤传感器位于所述料架上方，对所述料架进行限位，保证出料稳定；6) The adjustable baffle can be adjusted and compatible according to the size of the material, and the optical fiber sensor is located above the material rack to limit the position of the material rack to ensure stable discharge; 7)所述取料系统包括升降气缸，机械臂和吸嘴；7) The reclaiming system includes a lifting cylinder, a mechanical arm and a suction nozzle; 8)所述升降气缸负责控制吸嘴的左右移动与机械臂上吸嘴的下降和上升，便于取料。8) The lifting cylinder is responsible for controlling the left and right movement of the suction nozzle and the descent and rise of the suction nozzle on the mechanical arm, which is convenient for taking materials. 9)所述视觉光源系统至少包括高清摄像机和光源，高清摄像机包括但不限于4096工业线阵相机，其分辨率4096*2，光源包括但不限于白色条光；9) The visual light source system includes at least a high-definition camera and a light source. The high-definition camera includes but is not limited to a 4096 industrial line scan camera with a resolution of 4096*2. The light source includes but is not limited to a white strip light; 10)所述分拣系统包括升降气缸驱动的滑板开合导向至良品料架和不良品料架，所述分拣系统位于机架右侧，不良品料架位于滑板下方，良品料架位于滑板右侧，所述分拣系统接收检测完成的料。10) The sorting system includes a sliding plate driven by a lifting cylinder to open and close to guide the good product rack and the bad product rack. The sorting system is located on the right side of the frame, the bad product rack is located under the slide plate, and the good product rack is located On the right, the sorting system receives the inspected materials.
CN202210045919.7A 2022-01-07 2022-01-07 Automatic sheet inspection machine Pending CN116441174A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117299599A (en) * 2023-09-27 2023-12-29 华懋（厦门）新材料科技股份有限公司 An OPW main film visual inspection device and control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117299599A (en) * 2023-09-27 2023-12-29 华懋（厦门）新材料科技股份有限公司 An OPW main film visual inspection device and control method

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