A paper bag handle production control method, system, electronic equipment and medium

Abstract

The present invention discloses a production control method for a paper bag handle, which is applied to a kraft paper bag machine, including a feeder, a gluing machine, a dryer and a cutting machine; the production control method includes conveying a strip of kraft paper and a rope through a feeder, controlling the gluing machine to apply glue on the inner side of two layers of kraft paper, and bending and inserting the rope to achieve gluing. Obtain a first image of the paper bag handle after gluing, extract a first feature to identify and remove paper bag handles with abnormal gluing, and convey the remaining ones to a dryer; determine a drying scheme and set dryer parameters according to information on glue materials and kraft paper materials, and convey the paper bag handle to a cutting machine after drying to obtain a finished paper bag handle; obtain a second image of the finished paper bag handle, extract a second feature to identify the quality parameters of the finished paper bag handle, and update the drying scheme for the next production of the paper bag handle. The present invention improves production efficiency through an automated control process, and improves product quality through gluing anomaly detection and drying parameter optimization.

Description

Technical Field

[0001] The present invention relates to the technical field of paper bag production lines, and in particular to a paper bag handle production control method, system, electronic equipment and medium. Background Art

[0002] The current paper bag handle production process is usually carried out semi-automatically, mainly including manual feeding, gluing, drying, cutting and other steps. Although this method can meet basic production needs, it has some limitations in terms of efficiency, quality control and cost. For example, for quality control, it is usually based on manual experience to test the quality after the entire process is completed. Problems in each link of the process cannot be responded to in a timely manner, increasing the risk of rework. For the parameter control of the production line, a fixed mode is mostly used, which is difficult to quickly adapt to changes in product design or raw materials, and has poor flexibility, and thus cannot guarantee production quality. Summary of the invention

[0003] In order to solve at least one of the above-mentioned technical problems, the present invention provides a paper bag handle production control method, system, electronic equipment and medium.

[0004] In a first aspect, the present invention provides a paper bag handle production control method, which is applied to a kraft paper bag machine, wherein the kraft paper bag machine includes a feeder, a gluing machine, a dryer and a cutting machine; the production control method includes:

[0005] Put the strip-shaped kraft paper and the rope into the feeder, and convey the two layers of strip-shaped kraft paper and the rope to the gluing machine through the conveying mechanism of the feeder;

[0006] Control the gluing machine to apply glue on the inner side of the two layers of kraft paper strips to be bonded, control the rope to bend into an arch shape and insert the two ends of the rope between the two layers of kraft paper strips coated with glue to achieve gluing;

[0007] Acquire a first image of the glued paper bag handle, extract a first feature from the first image to identify the paper bag handle with abnormal gluing, remove the paper bag handle with abnormal gluing and convey the remaining paper bag handles to a dryer;

[0008] Determine the drying plan according to the glue material and kraft paper material information, set the dryer parameters according to the drying plan, and transport the paper bag handle to the cutting machine after drying to obtain the finished paper bag handle;

[0009] A second image of the finished paper bag handle is obtained, a second feature is extracted from the second image to identify a quality parameter of the finished paper bag handle, and a drying plan for the next production of the paper bag handle is updated according to the quality parameter.

[0010] Preferably, the extracting the first feature from the first image to identify the paper bag handle with abnormal gluing includes:

[0011] Extracting glue path features and lamination thickness features from the first image;

[0012] Determine glue distribution information and rope position information based on glue path characteristics, and determine gluing abnormality when discontinuity of glue path, uneven glue distribution or deviation of rope position are identified;

[0013] The thickness of the rope gluing area and the thickness of the kraft paper gluing area are determined according to the bonding thickness characteristics, and the thickness difference between the rope gluing area and the kraft paper gluing area is calculated. When the thickness difference is greater than a preset threshold, it is determined to be a gluing abnormality.

[0014] Preferably, the method further comprises determining the pressure of the gluing machine, comprising:

[0015] F = k1(H1+-0)×S1+2S2;

[0016] Where, F represents the pressure value to be applied by the gluing machine, H0 and H1 represent the thickness of the kraft paper before and after lamination, respectively, D is the rope diameter, S1 represents the lamination area, and S2 represents the glue coating area; k1 is the kraft paper material coefficient, which satisfies 0< <0.1; k2 is the glue material coefficient, which satisfies 0 <k<0.05。

[0017] Preferably, extracting the second feature from the second image to identify the quality parameter of the finished paper bag handle comprises:

[0018] Performing Gaussian filtering on the second image to remove noise, and converting the denoised second image into a grayscale image;

[0019] Gray-level co-occurrence matrix is ​​used to extract the texture features of gray-level images, and Canny edge detection algorithm is used to extract the edge features of gray-level images.

[0020] Inputting the texture features and the edge features into the first prediction model to predict the adhesion of the finished paper bag handle;

[0021] Inputting the texture features and edge features into the second prediction model to identify the surface defects of the finished paper bag handle;

[0022] The first prediction model and the second prediction model are obtained based on convolutional neural network training.

[0023] Preferably, the drying scheme for the next production of paper bag handles is updated according to the quality parameters, including:

[0024] Update the drying temperature in the drying plan:

[0025]

[0026] Where, T sIndicates the updated drying temperature, b s , b g They represent the actual adhesion and ideal adhesion of the finished paper bag handle, μ represents the thermal expansion coefficient of the kraft paper material, and T0 is the drying temperature before updating;

[0027] Update the holding time for the updated drying temperature:

[0028]

[0029] In the formula, t h is the updated insulation time, T min is the minimum effective temperature for drying, and t0 is the insulation time before updating.

[0030] In a second aspect, the present invention further provides a paper bag handle production control system, which is applied to a kraft paper bag machine, wherein the kraft paper bag machine includes a feeder, a gluing machine, a dryer and a cutting machine; the production control system includes:

[0031] A feeding control module is used for putting the strip-shaped kraft paper and the rope into the feeder, and conveying two layers of the strip-shaped kraft paper and the rope to the gluing machine through the conveying mechanism of the feeder;

[0032] The gluing control module is used to control the gluing machine to apply glue on the inner side of the two layers of kraft paper strips to be glued, control the rope to bend into an arch shape and insert the two ends of the rope between the two layers of kraft paper strips coated with glue to achieve gluing;

[0033] a gluing abnormality identification module, used for acquiring a first image of the gluing paper bag handle, extracting a first feature from the first image to identify the paper bag handle with gluing abnormality, removing the paper bag handle with gluing abnormality and conveying the remaining paper bag handle to a dryer;

[0034] The cutting control module is used to determine the drying scheme according to the information of the glue material and the kraft paper material, set the dryer parameters according to the drying scheme, and transport the paper bag handle to the cutting machine after drying to obtain the finished paper bag handle;

[0035] The drying scheme updating module is used to obtain a second image of the finished paper bag handle, extract a second feature from the second image to identify the quality parameters of the finished paper bag handle, and update the drying scheme for the next production of the paper bag handle according to the quality parameters.

[0036] In a third aspect, the present invention further provides an electronic device comprising a processor and a memory, wherein the memory is used to store computer program code, and the computer program code comprises computer instructions. When the processor executes the computer instructions, the electronic device executes the paper bag handle production control method as described in any one of the embodiments of the first aspect above.

[0037] In a fourth aspect, the present invention further provides a computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, wherein the computer program includes program instructions, and when the program instructions are executed by a processor of an electronic device, the processor executes the paper bag handle production control method as described in any one of the embodiments of the first aspect above.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1) The present invention provides a paper bag handle production control method, which is applied to a kraft paper bag machine, wherein the kraft paper bag machine includes a feeder, a gluing machine, a dryer and a cutting machine; the production control method includes: putting strip kraft paper and a rope into the feeder, and conveying two layers of strip kraft paper and the rope to the gluing machine through a conveying mechanism of the feeder; controlling the gluing machine to apply glue on the inner side surfaces of the two layers of strip kraft paper to be bonded, controlling the rope to bend into an arch shape and inserting the two ends of the rope between the two layers of strip kraft paper coated with glue to achieve gluing; by integrating the gluing machine and the dryer, a fully automatic process for producing a paper bag handle is achieved, which can speed up production efficiency.

[0040] 2) After the rope is glued to the two layers of kraft paper, obtain the first image of the glued paper bag handle, extract the first feature from the first image to identify the paper bag handle with abnormal glue, remove the paper bag handle with abnormal glue and transport the remaining paper bag handle to the dryer; wherein, the first feature is the glue path feature and the bonding thickness feature; determine the glue distribution information and the rope position information according to the glue path feature, and determine the bonding abnormality when it is identified that there is discontinuity in the glue path, uneven glue distribution or deviation in the rope position; determine the thickness of the rope bonding area and the thickness of the kraft paper bonding area according to the bonding thickness feature, calculate the thickness difference between the rope bonding area and the kraft paper bonding area, and determine the bonding abnormality when the thickness difference is greater than the preset threshold. In this way, products with obvious gluing quality defects can be removed before the drying process, and by timely responding and feedback on abnormal products, resource waste in subsequent production links can be avoided, reducing rework costs.

[0041] 3) During drying, the present invention determines a drying scheme based on the information of the glue material and the kraft paper material, sets the dryer parameters based on the drying scheme, and delivers the paper bag handle to the cutting machine after drying to obtain the finished paper bag handle; obtains a second image of the finished paper bag handle, extracts a second feature from the second image to identify the quality parameters of the finished paper bag handle, and updates the drying scheme for the next production of the paper bag handle based on the quality parameters. Through parameter feedback and optimization, self-learning of the production control process is achieved, which greatly improves the yield rate and finished product quality, and enhances production energy efficiency.

[0042] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the background technology, the drawings required for use in the embodiments of the present invention or the background technology will be described below.

[0044] The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present disclosure and are used to illustrate the technical solutions of the present disclosure together with the specification.

[0045] Figure 1 A schematic flow chart of a paper bag handle production control method provided by an embodiment of the present invention;

[0046] Figure 2 A schematic structural diagram of a paper bag handle production control system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0047] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0049] In addition, in order to better illustrate the present invention, numerous specific details are provided in the following specific embodiments. It should be understood by those skilled in the art that the present invention can be implemented without certain specific details. In some examples, methods and means well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present invention.

[0050] At present, the production process of paper bag handles still has problems such as low automation, high rework rate, and unsatisfactory production efficiency and yield rate. To this end, the present invention aims to provide a paper bag handle production control method, which can realize a fully automated process for paper bag handle production, can respond to abnormal gluing in time, reduce the rework rate, and continuously optimize the production line operation parameters through parameter tuning of the drying scheme, thereby improving the yield rate and finished product quality, and increasing production energy efficiency.

[0051] It should be noted that the paper bag handle production control method is first applied to a kraft paper bag machine, which includes: a feeder, a gluing machine, a dryer and a cutting machine. The feeder is responsible for feeding the strip kraft paper and rope for producing the paper bag handle into the production process, and mainly transports the two layers of strip kraft paper and rope to the next process, namely the gluing machine, through a conveying mechanism. The gluing machine applies glue on the kraft paper through a rubber wheel, and then overlaps the rope between the two layers of kraft paper, specifically bending the rope into an arch, and then inserting the two ends of the rope between the glued kraft paper to achieve the bonding of the rope and the kraft paper. The dryer determines the drying scheme according to the glue material and kraft paper material information, and sets the dryer parameters to dry the paper bag handle at an appropriate temperature. By setting the working temperature and insulation time of the dryer, it is ensured that the glue is fully cured and the kraft paper is prevented from being excessively deformed. Finally, the dried paper bag handle is cut into the final product size to obtain a finished product. Therefore, the kraft paper bag machine used in this embodiment integrates the gluing machine and the drying machine, and compared with the existing production line, realizes a fully automatic process for producing paper bag handles, thereby speeding up production efficiency.

[0052] Based on the above-mentioned kraft paper bag machine, an embodiment of the present invention provides a paper bag handle production control method. Figure 1 , Figure 1 A flow chart of a paper bag handle production control method is provided. Figure 1 As shown, the method includes:

[0053] S10, putting the strip-shaped kraft paper and the rope into a feeder, and conveying the two layers of strip-shaped kraft paper and the rope to a gluing machine through a conveying mechanism of the feeder.

[0054] In this step, first prepare the strips of kraft paper and ropes to ensure that their size and quality meet production requirements. Put two layers of strips of kraft paper and ropes into the feed port of the feeder, ensuring that the kraft paper and ropes are placed correctly to prevent misalignment or blockage during subsequent production. Start the feeder, and the conveying mechanism inside the feeder starts working. The conveying mechanism is usually driven by a motor and moves the kraft paper and ropes through components such as chains, belts or rollers. The feeder transports the kraft paper and ropes along a predetermined path to the gluing machine. During the conveying process, the kraft paper and ropes are positioned to ensure that they can reach the position of the gluing machine accurately.

[0055] In the feeding stage, in order to ensure that the position of the kraft paper and the rope in the feeder is accurate to avoid misalignment during the gluing process, a high positioning accuracy is required. Preferably, a photoelectric sensor can be set up and a photoelectric switch can be used to detect the position of the kraft paper and the rope, and ensure that they are in the correct position before entering the gluing machine. In order to ensure smooth transportation, the conveying speed of the feeder needs to be adjusted according to production requirements. For example, a servo motor can be used to accurately control the speed and position of the conveyor belt, and the speed of the motor can be monitored and adjusted through a feedback loop to achieve closed-loop control and ensure the speed of the conveyor belt is stable.

[0056] S20, controlling the gluing machine to apply glue on the inner side of the two layers of kraft paper strips to be bonded, controlling the rope to bend into an arch shape, and inserting the two ends of the rope between the two layers of kraft paper strips coated with glue to achieve gluing.

[0057] The gluing machine includes a glue coating system, in which glue is evenly coated on the inner side of the kraft paper by using a precise glue dispenser. The type of glue can be selected according to the material of the kraft paper and the rope to ensure a good bonding effect. The coating method can be spray, roller or brush, etc., and the appropriate coating method can be selected according to the glue properties and production requirements. Preferably, a roller coating method is adopted in this embodiment. For the control of the amount of glue, a flow meter can be used to accurately control the flow rate of the glue to ensure that the amount of glue applied each time is consistent, and the outflow speed and coating amount of the glue can be controlled by adjusting the pressure of the glue coating system.

[0058] Furthermore, when controlling the rope to bend into an arch shape and inserting the two ends of the rope into the two layers of strip-shaped kraft paper after gluing to achieve the gluing process, the rope is first bent into the desired arch shape using a rope bending mechanism, and a mechanical arm or a robot is used to accurately control the bending shape and position of the rope. Inserting the rope between the overlapping kraft papers needs to be achieved through a rope insertion mechanism. The rope insertion mechanism includes a clamp and a positioning system. By using the clamp to grasp the two ends of the rope, it is ensured that it is accurately inserted between the glued kraft papers. By using a positioning system, such as a photoelectric sensor, a visual system, etc., it is ensured that the two ends of the rope are accurately inserted between the kraft papers.

[0059] In order to ensure the quality of gluing, gluing pressure control is very important. The pressure of the gluing machine can be adjusted to ensure good adhesion between the rope and the kraft paper, and a pressure sensor can be used to monitor the pressure during the gluing process to ensure the gluing effect.

[0060] In one embodiment, determining a pressure of a gluing machine includes:

[0061] F = k1(H1+-0)×S1+2S2;

[0062] Where, F represents the pressure value to be applied by the gluing machine, H0 and H1 represent the thickness of the kraft paper before and after lamination, respectively, D is the rope diameter, S1 represents the lamination area, and S2 represents the glue coating area; k1 is the kraft paper material coefficient, which satisfies 0< <0.1; k2 is the glue material coefficient, which satisfies 0 <k<0.05。

[0063] In the above formula, k1 is the kraft paper material coefficient, which is used to adjust the influence of kraft paper thickness and rope diameter on pressure. k2 is the glue material coefficient, which is used to adjust the influence of glue coating area on pressure. K1(H1+-0) takes into account the influence of kraft paper thickness, rope diameter and pressing area on pressure, while H1+-0 represents the total thickness of rope and kraft paper, minus the thickness of kraft paper after pressing, that is, the part that needs to be compressed.

[0064] For example, in one embodiment, k1=0.05, k2=0.02, S1=100 2 , S2=150 2 ; H1, H0, and D are 0.2, 0.15, and 0.1 respectively. By substituting the above values ​​into the formula, we can calculate that F is 3.75.

[0065] Therefore, by considering factors such as kraft paper thickness, rope diameter, lamination area, and glue coating area, this embodiment can accurately calculate the required gluing pressure, which helps to ensure good adhesion between the rope and kraft paper. Through precise pressure control, the number of trial and error can be reduced, production efficiency can be improved, and unnecessary pressure waste can be reduced, thereby saving energy consumption. In addition, k1 and k2 give a value range, and by adjusting the kraft paper material coefficient k i And the glue material coefficient k2, can be optimized for different materials of kraft paper and glue, so as to ensure the adhesion and surface quality of the product.

[0066] S30, obtaining a first image of the glued paper bag handles, extracting a first feature from the first image to identify paper bag handles with abnormal gluing, removing the paper bag handles with abnormal gluing and conveying the remaining paper bag handles to a dryer.

[0067] It should be noted that, at present, when quality inspection is performed on paper bag handles, it is usually performed uniformly after the finished product is obtained, based on manual experience or experimental testing. However, this method is not only inefficient, but also cannot respond in time to paper bag handles with problems in the gluing process, which will cause the finished products obtained after these products enter the subsequent links to still be unqualified, thereby increasing the rework cost and causing waste of resources. For this reason, this embodiment uses machine vision inspection to first remove products with obvious abnormalities at the end of the gluing process, thereby improving resource utilization.

[0068] In one embodiment, the step of extracting a first feature from a first image to identify a paper bag handle with abnormal gluing includes:

[0069] Extracting glue path features and lamination thickness features from the first image;

[0070] Determine glue distribution information and rope position information based on glue path characteristics, and determine gluing abnormality when discontinuity of glue path, uneven glue distribution or deviation of rope position are identified;

[0071] The thickness of the rope gluing area and the thickness of the kraft paper gluing area are determined according to the bonding thickness characteristics, and the thickness difference between the rope gluing area and the kraft paper gluing area is calculated. When the thickness difference is greater than a preset threshold, it is determined to be a gluing abnormality.

[0072] In this embodiment, after obtaining the first image, preprocessing will be performed first, including graying, denoising, contrast enhancement, etc., in order to better extract features. When extracting the glue path features, an edge detection algorithm is used, preferably Canny edge detection, to detect the distribution boundary of the glue. The glue distribution area is separated from the background by image segmentation technology, such as threshold segmentation or region growing technology, and then the characteristics of the glue distribution area are calculated, including area, perimeter, shape factor and other characteristics, so as to identify whether the glue path is discontinuous and whether the glue distribution is uneven. According to the rope position information, it is judged whether the rope deviates from the preset position. If the deviation exceeds the preset threshold, it is determined to be a gluing abnormality. The thickness feature is mainly obtained by extracting the depth information, and the thickness difference between the rope gluing area and the kraft paper gluing area is calculated. If the thickness difference is greater than the preset threshold, it is determined to be a gluing abnormality.

[0073] Therefore, this embodiment can eliminate products with obvious gluing quality defects before the drying process, and avoid waste of resources in subsequent production links and reduce rework costs by timely responding and feeding back abnormal products.

[0074] S40, determining a drying scheme according to the information of the glue material and the kraft paper material, setting the dryer parameters according to the drying scheme, and conveying the paper bag handle to a cutting machine after drying to obtain a finished paper bag handle.

[0075] Obtain the material information of kraft paper, such as thickness, water absorption, etc.; obtain the material information of glue, such as curing temperature, curing time, etc. Determine the drying target according to the characteristics of kraft paper and glue. Usually, it is necessary to ensure that the glue is fully cured and the kraft paper is not deformed. Then, design the drying temperature curve and insulation time according to the material information, consider the optimal drying conditions of kraft paper and glue, design the drying temperature variation curve and the insulation time at each temperature, obtain the drying plan, and adjust the parameters such as the heating element power and fan speed of the dryer according to the drying plan to ensure the accuracy of the temperature curve. Then execute the drying plan and send it to the cutting machine to cut the continuous strip handles to obtain multiple finished paper bag handles.

[0076] S50, obtaining a second image of the finished paper bag handle, extracting a second feature from the second image to identify quality parameters of the finished paper bag handle, and updating a drying plan for next production of the paper bag handle according to the quality parameters.

[0077] After gluing is completed, the above embodiment uses visual inspection to quickly remove gluing anomalies with obvious defects, thereby avoiding the problem of frequent rework causing waste of resources. In this embodiment, after the finished product is obtained, it is necessary to further test the quality of the finished product, confirm the qualified finished product, and optimize the parameters of the next production line cycle process according to the quality parameters, so as to iteratively optimize the production process of the paper bag handle and gradually improve the production energy efficiency.

[0078] In one embodiment, extracting the second feature from the second image to identify the quality parameter of the finished paper bag handle includes:

[0079] Performing Gaussian filtering on the second image to remove noise, and converting the denoised second image into a grayscale image;

[0080] Gray-level co-occurrence matrix is ​​used to extract the texture features of gray-level images, and Canny edge detection algorithm is used to extract the edge features of gray-level images.

[0081] Inputting the texture features and the edge features into the first prediction model to predict the adhesion of the finished paper bag handle;

[0082] Inputting the texture features and edge features into the second prediction model to identify the surface defects of the finished paper bag handle;

[0083] The first prediction model and the second prediction model are obtained based on convolutional neural network training.

[0084] In this embodiment, by inputting texture features and edge features into the first prediction model, the adhesion of the finished paper bag handle can be accurately predicted. The second prediction model can identify surface defects of the finished paper bag handle, such as cracks, dents, etc. By identifying these defects, unqualified products can be eliminated in time to ensure the quality of the final product. The first prediction model and the second prediction model are both obtained by convolutional neural network training, and a large amount of historical production data can be used to train the model. Therefore, this embodiment can quickly and accurately predict the adhesion of the finished paper bag handle and identify its surface defects, thereby reducing the scrap rate, optimizing resource utilization, and improving the quality of the finished product.

[0085] In one embodiment, the drying scheme for the next production of paper bag handles is updated according to the quality parameters, including:

[0086] Update the drying temperature in the drying plan:

[0087]

[0088] Where, T s Indicates the updated drying temperature, b s , b g They represent the actual adhesion and ideal adhesion of the finished paper bag handle respectively, μ represents the thermal expansion coefficient of the kraft paper material, and T0 is the drying temperature before updating.

[0089] Furthermore, the holding time of the updated drying temperature is updated:

[0090]

[0091] Where, t h is the updated insulation time, T min is the minimum effective temperature for drying, and t0 is the insulation time before updating.

[0092] This embodiment aims to dynamically adjust the drying temperature and holding time in the drying scheme according to the quality parameters of the finished paper bag handle, mainly the adhesion. In this way, the drying process can be optimized to improve the quality and production efficiency of the finished paper bag handle.

[0093] It should be noted that when the actual adhesion is close to the ideal adhesion, the drying temperature will be close to the drying temperature before the update. When the actual adhesion is far from the ideal adhesion, the drying temperature will be adjusted according to the change of the thermal expansion coefficient and the logarithmic function. In this way, the drying temperature can be adjusted according to the change of adhesion to achieve the purpose of optimizing the drying effect.

[0094] Generally, if the actual adhesion is lower than the ideal adhesion, it usually indicates that the glue is not fully cured or the water is not completely evaporated. In this case, the curing process of the glue and the evaporation of the water can be accelerated by increasing the drying temperature, thereby improving the adhesion. On the contrary, if the actual adhesion is higher than the ideal adhesion, it means that the temperature is too high or the time is too long during the drying process, resulting in excessive curing of the glue or unnecessary physical changes in the kraft paper. At this time, the drying temperature should be lowered or the insulation time should be reduced. If the two values ​​are the same, it means that the drying temperature does not need to be adjusted. Therefore, the above formula can be used to determine the updated size of the drying temperature for the three situations where the actual adhesion is lower than, higher than, and equal to the ideal adhesion.

[0095] In the above formula, T s is greater than T min That is, the updated drying temperature is greater than the minimum effective temperature, and The value of is usually less than 1. The holding time is usually inversely proportional to the drying temperature, which means that the higher the temperature, the shorter the holding time, and vice versa. In this way, the holding time can be adjusted according to the change of the drying temperature to achieve the optimal drying effect. Therefore, by dynamically adjusting the drying temperature and holding time, it is possible to ensure that the adhesion of the finished paper bag handle reaches an ideal state, thereby improving product quality. At the same time, by accurately adjusting the drying temperature and holding time, it is possible to reduce energy waste and reduce production costs.

[0096] In summary, when drying, the embodiment of the present invention determines the drying scheme according to the information of the glue material and the kraft paper material, sets the dryer parameters according to the drying scheme, and transports the paper bag handle to the cutting machine after drying to obtain the finished paper bag handle; obtains the second image of the finished paper bag handle, extracts the second feature from the second image to identify the quality parameters of the finished paper bag handle, and updates the drying scheme for the next production of the paper bag handle according to the quality parameters. Through parameter feedback and optimization, self-learning of the production control process is achieved, which greatly improves the yield rate and finished product quality, and enhances production energy efficiency.

[0097] See also Figure 2 The embodiment of the present invention further provides a paper bag handle production control system, which is applied to a kraft paper bag machine, wherein the kraft paper bag machine includes a feeder, a gluing machine, a drying machine and a cutting machine; the production control system includes:

[0098] The feeding control module 100 is used to put the strip-shaped kraft paper and the rope into the feeder, and convey the two layers of strip-shaped kraft paper and the rope to the gluing machine through the conveying mechanism of the feeder;

[0099] The gluing control module 200 is used to control the gluing machine to apply glue on the inner side of the two layers of kraft paper strips to be glued, control the rope to bend into an arch shape and insert the two ends of the rope between the two layers of kraft paper strips coated with glue to achieve gluing;

[0100] The gluing abnormality identification module 300 is used to obtain a first image of the gluing paper bag handle, extract a first feature from the first image to identify the paper bag handle with gluing abnormality, remove the paper bag handle with gluing abnormality and transport the remaining paper bag handle to the dryer;

[0101] The cutting control module 400 is used to determine a drying scheme according to the information of the glue material and the kraft paper material, set the dryer parameters according to the drying scheme, and transport the paper bag handle to the cutting machine after drying to obtain the finished paper bag handle;

[0102] The drying scheme updating module 500 is used to obtain a second image of the finished paper bag handle, extract a second feature from the second image to identify the quality parameters of the finished paper bag handle, and update the drying scheme for the next production of the paper bag handle according to the quality parameters.

[0103] It can be understood that the functions or modules included in the system provided in this embodiment can be used to execute the method described in the above method embodiment. Its specific implementation can refer to the description of the above method embodiment. For the sake of brevity, it will not be repeated here.

[0104] The present invention also provides an electronic device, including a processor and a memory, wherein the memory is used to store computer program code, and the computer program code includes computer instructions. When the processor executes the computer instructions, the electronic device executes the paper bag handle production control method as described in any one of the above embodiments.

[0105] The present invention also provides a computer-readable storage medium, in which a computer program is stored. The computer program includes program instructions. When the program instructions are executed by a processor of an electronic device, the processor executes the paper bag handle production control method as described in any one of the above embodiments.

[0106] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0107] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. Those skilled in the art can also clearly understand that the descriptions of the various embodiments of the present invention have different focuses. For the convenience and brevity of description, the same or similar parts may not be repeated in different embodiments. Therefore, for parts not described or not described in detail in a certain embodiment, refer to the records of other embodiments.

Claims

1. A paper bag handle production control method, applied to a kraft paper bag machine, the kraft paper bag machine comprising a feeder, a gluing machine, a dryer and a cutting machine; characterized in that: The production control method comprises: Put the strip-shaped kraft paper and the rope into the feeder, and convey the two layers of strip-shaped kraft paper and the rope to the gluing machine through the conveying mechanism of the feeder; Control the gluing machine to apply glue on the inner side of the two layers of kraft paper strips to be bonded, control the rope to bend into an arch shape and insert the two ends of the rope between the two layers of kraft paper strips coated with glue to achieve gluing; Acquire a first image of the glued paper bag handle, extract a first feature from the first image to identify the paper bag handle with abnormal gluing, remove the paper bag handle with abnormal gluing and convey the remaining paper bag handles to a dryer; The method of extracting a first feature from a first image to identify a paper bag handle with abnormal gluing comprises: Extracting glue path features and lamination thickness features from the first image; Determine glue distribution information and rope position information based on glue path characteristics, and determine gluing abnormality when discontinuity of glue path, uneven glue distribution or deviation of rope position are identified; Determine the thickness of the rope gluing area and the thickness of the kraft paper gluing area according to the bonding thickness characteristics, calculate the thickness difference between the rope gluing area and the kraft paper gluing area, and determine that the gluing is abnormal when the thickness difference is greater than a preset threshold; Determine the drying plan according to the glue material and kraft paper material information, set the dryer parameters according to the drying plan, and transport the paper bag handle to the cutting machine after drying to obtain the finished paper bag handle; A second image of the finished paper bag handle is obtained, a second feature is extracted from the second image to identify a quality parameter of the finished paper bag handle, and a drying plan for the next production of the paper bag handle is updated according to the quality parameter.

2. The paper bag handle production control method according to claim 1, characterized in that: The step of extracting the second feature from the second image to identify the quality parameter of the finished paper bag handle comprises: Performing Gaussian filtering on the second image to remove noise, and converting the denoised second image into a grayscale image; Gray-level co-occurrence matrix is ​​used to extract the texture features of gray-level images, and Canny edge detection algorithm is used to extract the edge features of gray-level images. Inputting the texture features and the edge features into the first prediction model to predict the adhesion of the finished paper bag handle; Inputting the texture features and edge features into the second prediction model to identify the surface defects of the finished paper bag handle; The first prediction model and the second prediction model are obtained based on convolutional neural network training.

3. A paper bag handle production control system, applied to a kraft paper bag machine, the kraft paper bag machine includes a feeder, a gluing machine, a dryer and a cutting machine; characterized in that: The production control system comprises: A feeding control module is used for putting the strip-shaped kraft paper and the rope into the feeder, and conveying two layers of the strip-shaped kraft paper and the rope to the gluing machine through the conveying mechanism of the feeder; The gluing control module is used to control the gluing machine to apply glue on the inner side of the two layers of kraft paper strips to be glued, control the rope to bend into an arch shape and insert the two ends of the rope between the two layers of kraft paper strips coated with glue to achieve gluing; The gluing abnormality identification module is used to obtain a first image of the gluing paper bag handle, extract a first feature from the first image to identify the paper bag handle with gluing abnormality, remove the paper bag handle with gluing abnormality and convey the remaining paper bag handle to the dryer; the extracting the first feature from the first image to identify the paper bag handle with gluing abnormality includes: Extracting glue path features and lamination thickness features from the first image; Determine glue distribution information and rope position information based on glue path characteristics, and determine gluing abnormality when discontinuity of glue path, uneven glue distribution or deviation of rope position are identified; Determine the thickness of the rope gluing area and the thickness of the kraft paper gluing area according to the bonding thickness characteristics, calculate the thickness difference between the rope gluing area and the kraft paper gluing area, and determine that the gluing is abnormal when the thickness difference is greater than a preset threshold; The cutting control module is used to determine the drying scheme according to the information of the glue material and the kraft paper material, set the dryer parameters according to the drying scheme, and transport the paper bag handle to the cutting machine after drying to obtain the finished paper bag handle; The drying scheme updating module is used to obtain a second image of the finished paper bag handle, extract a second feature from the second image to identify the quality parameters of the finished paper bag handle, and update the drying scheme for the next production of the paper bag handle according to the quality parameters.

4. An electronic device, characterized in that: The electronic device comprises a processor and a memory, wherein the memory is used to store computer program codes, and the computer program codes include computer instructions. When the processor executes the computer instructions, the electronic device executes the paper bag handle production control method according to any one of claims 1 to 2.

5. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor of an electronic device, the processor executes the paper bag handle production control method according to any one of claims 1 to 2.

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