Intelligent punching system and method for carrier tape packaging of continuous material tape products

Abstract

The invention relates to the technical field of continuous material belt intelligent punching, in particular to an intelligent punching system and method for continuous material belt product carrier tape packaging, and the method comprises the steps: measuring various form data of a current molded product and a standard product, and obtaining a gray level image and a standard gray level image of a to-be-punched area on a current continuous material belt; according to the deviation value distribution of the form data between the current forming product and the standard product, the form difference value of the current forming product is obtained; the surface influence degree of the to-be-punched area is obtained, then the punching adjustment degree of the to-be-punched area is obtained in combination with gray distribution of all edge pixel points in a gray image of the to-be-punched area, and the dynamic punching pressure value of the to-be-punched area is obtained in combination with the preset minimum punching pressure and the preset maximum punching pressure of the forming die on the current continuous material belt. And punching the area to be punched. The invention aims to improve the quality of a product obtained by punching by dynamically adjusting the punching pressure.

Description

Technical Field

[0001] This application relates to the technical field of intelligent punching of continuous strip materials, and particularly to an intelligent punching system and method for carrier tape packaging of continuous strip products. Background Art

[0002] Continuous strip refers to the strip-shaped metal material used in the continuous die of hardware stamping, and realizes efficient and high-precision continuous processing through multi-station dies. The specific operation process of the intelligent punching system for carrier tape packaging of continuous strip products is as follows: The material strip is processed through the processing die to obtain a continuous strip containing semi-finished products, the continuous strip is transported to the forming die, the continuous ribs are cut off to leave individual products, the qualified products obtained through CCD vision inspection are loaded into the carrier tape, and after the carrier tape is encapsulated, it is shipped in a reel.

[0003] In the traditional intelligent punching system, the punching of the continuous strip is achieved by setting a fixed punching pressure. Due to the influence of the processing accuracy of the processing die, there are differences in the punching marks at different positions on the initially processed continuous strip, and the fixed punching pressure of the forming die is likely to cause material deformation or burrs, affecting the qualification rate of the products. Therefore, it is necessary to dynamically adjust the punching pressure according to the actual situation. Summary of the Invention

[0004] In view of the above, it is necessary to provide an intelligent punching system and method for carrier tape packaging of continuous strip products, which improves the control accuracy of intelligent punching compared with the traditional intelligent punching system and method for carrier tape packaging of continuous strip products:

[0005] In a first aspect, an embodiment of the present application provides an intelligent punching method for carrier tape packaging of continuous strip products, and the method includes the following steps:

[0006] Measure various morphological data of the current formed product and the standard product, and obtain the grayscale image and the standard grayscale image of the area to be punched on the current continuous strip;

[0007] Obtain the morphological difference value of the current formed product through the deviation value distribution of the morphological data between the current formed product and the standard product;

[0008] Obtain the surface influence degree of the area to be punched through the grayscale difference between the grayscale image of the area to be punched and the standard grayscale image;

[0009] Obtain the punching adjustment degree of the area to be punched through the morphological difference value and the surface influence degree, in combination with the grayscale distribution of all edge pixel points in the grayscale image of the area to be punched;

[0010] Obtain the dynamic punching pressure value of the area to be punched through the punching adjustment degree, as well as the preset minimum punching pressure and the preset maximum punching pressure of the current continuous strip by the forming die;

[0011] Punch the area to be punched according to the dynamic punching pressure value.

[0012] In one of the embodiments, the process of obtaining the morphological difference value is as follows:

[0013] Statistically obtain the maximum and minimum values among all the deviation values of the current formed product, and calculate the average value of all the deviation values of the current formed product;

[0014] The morphological difference value is positively correlated with the maximum value and the average value respectively, and negatively correlated with the minimum value.

[0015] In one of the embodiments, the expression formula of the morphological difference value is:

[0016] In the formula, A represents the morphological difference value of the current formed product; P max 、P min represent the maximum value and the minimum value respectively; P mad represents the average value; ε represents a preset value greater than 0.

[0017] In one of the embodiments, the process of obtaining the surface influence degree is as follows:

[0018] Use the edge detection algorithm to obtain the binary image of the grayscale image and the binary image of the standard grayscale image respectively, denoted as the actual binary image and the standard binary image;

[0019] The expression formula of the surface influence degree is:

[0020] In the formula, C represents the surface influence degree of the area to be punched; n represents the number of pixel points in the actual binary image; G i 、G B,i represent the grayscale values of the i-th pixel point in the actual binary image and the standard binary image respectively.

[0021] In one of the embodiments, the process of obtaining the punching adjustment degree is as follows:

[0022] Use the edge detection algorithm to obtain each edge pixel point in the grayscale image of the area to be punched;

[0023] Calculate the dispersion of the grayscale values of all edge pixel points in the grayscale image of the area to be punched;

[0024] The punching adjustment degree is positively correlated with the morphological difference value, the surface influence degree, and the dispersion respectively.

[0025] In one embodiment, the expression of the punching adjustment degree is as follows:

[0026] In the formula, ω represents the punching adjustment degree of the area to be punched; norm() represents the normalization operation; A represents the morphological difference value of the current formed product; C represents the surface influence degree of the area to be punched; exp() represents the exponential function with the natural constant as the base; σ represents the dispersion degree of the gray values of all edge pixel points in the gray image of the area to be punched.

[0027] In one embodiment, the process of obtaining the dynamic punching pressure value is as follows:

[0028] Calculate the difference between the preset maximum punching pressure and the preset minimum punching pressure;

[0029] The dynamic punching pressure value is positively correlated with the preset minimum punching pressure, the punching adjustment degree, and the difference respectively.

[0030] In one embodiment, the expression of the dynamic punching pressure value is as follows:

[0031] F = F min + ω × (F max - F min ); In the formula, F represents the dynamic punching pressure value of the area to be punched; ω represents the punching adjustment degree of the area to be punched; F min and F max represent the preset minimum punching pressure and the preset maximum punching pressure of the forming die for the current continuous strip respectively.

[0032] In one embodiment, for any formed product obtained by punching, compare the differences in various morphological data between the any formed product and the standard product, which is recorded as the morphological difference. If at least one of the morphological differences exceeds the preset error range, the any formed product is unqualified and is discharged and stored, otherwise, the any formed product is packaged with a carrier tape.

[0033] In a second aspect, the embodiments of the present application further provide an intelligent punching system for carrier tape packaging of continuous strip products, and the system includes:

[0034] An information collection module, configured to measure various morphological data of the current formed product and the standard product, and obtain the gray image and the standard gray image of the area to be punched on the current continuous strip;

[0035] An information analysis module, configured to obtain the morphological difference value of the current formed product through the deviation value distribution of the morphological data between the current formed product and the standard product;

[0036] Obtain the surface influence degree of the area to be punched through the gray - scale difference between the gray - scale image of the area to be punched and the standard gray - scale image;

[0037] Through the morphological difference value and the surface influence degree, combined with the gray - scale distribution of all edge pixel points in the gray - scale image of the area to be punched, obtain the punching adjustment degree of the area to be punched;

[0038] Through the punching adjustment degree, as well as the preset minimum punching pressure and preset maximum punching pressure of the forming die on the current continuous strip, obtain the dynamic punching pressure value of the area to be punched.

[0039] This application has at least the following beneficial effects:

[0040] This application focuses on the intelligent punching control of continuous strips during product processing. Based on the characteristic that adjacent areas on the continuous strip often have similar situations, through the deviation between the formed product at the output end of the forming die and the area to be punched on the continuous strip at the input end, the punching adjustment degree is obtained, the necessity of adjusting the punching pressure for the area to be punched is evaluated, as well as the adjustment range of the punching pressure;

[0041] Furthermore, through the punching adjustment degree, the dynamic punching pressure value is obtained, realizing the dynamic adjustment of the punching pressure for different punching areas on the continuous strip, ensuring high - quality punching of products; solving the problem in the traditional punching industrial control system that a fixed punching pressure is set, ignoring the punching mark deviation of the continuous strip during the initial processing and the quality of the actual formed product, which easily causes deformation and burrs in the formed product, improving the control accuracy of intelligent punching, and thus improving the quality of the punched products. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0043] Figure 1 It is a flowchart of the steps of an intelligent punching method for continuous strip product carrier tape packaging provided by an embodiment of the present application;

[0044] Figure 2 It is a structural schematic diagram of a terminal;

[0045] Figure 3 It is a product drawing of a continuous strip;

[0046] Figure 4 It is a three - dimensional model of a terminal;

[0047] Figure 5 Schematic diagram for obtaining the area to be punched

[0048] Figure 6 Schematic diagram of the process for obtaining the dynamic punching pressure value

[0049] Figure 7 Flow chart of the operation of the intelligent punching system Detailed implementation manners

[0050] In the description of the embodiments of the present application, words such as "exemplary", "or", "for example", etc. are used to indicate examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly speaking, using words such as "exemplary", "or", "for example" is intended to present related concepts in a specific manner.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in this application are only for the purpose of describing specific embodiments, and are not intended to limit this application. It should be understood that unless otherwise stated in this application, " / " means "or".

[0052] In addition, it should be noted that the terms "first" and "second" in this application are used to distinguish similar objects, rather than to describe a specific order or sequence.

[0053] The following specifically describes the specific solutions of an intelligent punching system and method for continuous tape product carrier packaging provided by this application with reference to the accompanying drawings.

[0054] Please refer to Figure 1 , which shows a step flow chart of an intelligent punching method for continuous tape product carrier packaging provided by an embodiment of this application. The method includes the following steps:

[0055] Step 100, measure various morphological data of the current formed product and the standard product, and obtain the grayscale image and the standard grayscale image of the area to be punched on the current continuous tape.

[0056] This embodiment takes the punching process of terminals as an example. The continuous strip is continuously led through the forming die to continuously output products. The products are grasped by a manipulator, and the morphological data of the current formed products are obtained through a two-dimensional measuring instrument. In this embodiment, the two-dimensional measuring instrument includes 4 CCD cameras, which can detect the upper, lower, left, and right four faces of the product, and measure the height value, flatness value of the welding surface, length, width, and offset value of the product head of the product. Among them, the offset value of the product head is used to measure whether the product head is deformed. The schematic structural diagram of the terminal is as shown in Figure 2 shown.

[0057] At the same time, at the input end of the forming die, a grayscale image of the area to be punched on the current continuous strip is obtained by using a CCD camera based on the positioning holes. It should be noted that: the continuous strip is a semi-finished product obtained by processing the material strip through a processing die and needs to be processed by the forming die to obtain products. The product drawing of the continuous strip is as shown in Figure 3 shown. The three-dimensional model of the terminal is as shown in Figure 4 shown. The schematic diagram of obtaining the area to be punched is as shown in Figure 5 shown, Figure 5 where L1 and L2 are the edge lines of the positioning holes, and L3 and L4 are the center lines of the positioning holes. Take the centers of the two positioning holes at the lower end of the carrier tape and the center of one positioning hole at the upper end of the carrier tape in Figure 5 as the three vertices of a triangle, and take the centroid of the triangle as the center of the area to be punched. At the same time, the interval between the upper boundary of the area to be punched and L1 is equal to the interval between the lower boundary of the area to be punched and L2, and the interval is 0.04 mm. The interval between the left boundary of the area to be punched and L3 is equal to the interval between the right boundary of the area to be punched and L4, and the interval is 0.02 mm.

[0058] Under the same acquisition conditions as the grayscale image of the area to be punched, a standard grayscale image of the area to be punched is obtained, where the standard grayscale image is obtained by collecting standard stamping marks, and the standard stamping marks are determined by the standard design drawing of the continuous strip of the product.

[0059] Step 200, obtain the morphological difference value of the current formed product through the deviation value distribution of the morphological data between the current formed product and the standard product.

[0060] When the continuous strip is processed by the forming die, the forming die forms the final formed product by cutting the continuous ribs on the continuous strip in batches and through a moving stamping process. During the process of punching the continuous ribs, the general processing technology usually sets a fixed punching pressure, which may cause deformation and burrs of the formed product, having an adverse impact on the qualification rate and packaging use of the formed product. Therefore, it is necessary to dynamically adjust the punching pressure according to the situation of the formed product and the continuous strip.

[0061] During the process of punching the continuous strip by the forming die, it is impossible to effectively collect data inside the mechanical equipment, and the formed products are continuously produced at the output end of the forming die. Therefore, the punching pressure of the continuous strip being punched and formed is dynamically adjusted according to the quality of the formed products at the output end.

[0062] When the processing accuracy of the processing die does not match the punching pressure, it may cause a difference between the morphological data of the formed product and the morphological data of the standard product. The greater the difference, the worse the matching degree of the current punching pressure of the forming die, and the greater the adjustment amount of the punching pressure of the forming die is required. On the contrary, the smaller the adjustment amount of the punching pressure of the forming die is required.

[0063] Through the deviation value distribution of the morphological data between the current formed product and the standard product, the morphological difference value of the current formed product is obtained. The specific process is as follows:

[0064] Calculate the deviation values of various morphological data between the current formed product and the standard product, count the maximum value and the minimum value among all the deviation values of the current formed product, and calculate the average value of all the deviation values of the current formed product;

[0065] The expression of the morphological difference value of the current formed product is:

[0066] In the formula, A represents the morphological difference value of the current formed product; P max 、P min respectively represent the maximum value and the minimum value; P mad represents the average value; ε represents a preset value greater than 0, the purpose is to avoid the denominator being 0, the value of ε is preset manually, and the implementer can set it by himself. In this embodiment, the value of ε is 0.01. Among them, the calculation method of the deviation value is: if the height of the current formed product is 2.630 mm and the height of the standard product is 2.6 mm, then the deviation value between the heights is 0.03. If the height of the current formed product is 2.560 mm and the height of the standard product is 2.6 mm, then the deviation value between the heights is 0.04, that is, the deviation value is the absolute value of the difference between various morphological data of the current formed product and the standard product.

[0067] It should be noted that: the morphological difference value reflects the difference between the morphological data of the current formed product and the morphological data of the standard product. The larger it is, the greater the deviation of the current formed product in some directions. At the same time, the average value reflects the average difference degree between the morphological data of the current formed product and the morphological data of the standard product. If the average value is larger, it means that compared with the standard product, the overall deviation of various morphological data of the current formed product is larger, and then the morphological difference value of the current formed product is larger.

[0068] If the morphological difference value of the current formed product is larger, it indicates that the punching pressure of the current forming die is more inappropriate, and the punching pressure needs to be adjusted to improve the smoothness of the punching edge of the formed product.

[0069] Step 300, obtain the surface influence degree of the area to be punched through the gray difference between the gray image of the area to be punched and the standard gray image; through the morphological difference value and the surface influence degree, and combining the gray distribution of all edge pixel points in the gray image of the area to be punched, obtain the punching adjustment degree of the area to be punched.

[0070] The continuous strip is usually made of metal and is a semi-finished product obtained by preliminary processing of the material strip. Based on the stamping marks obtained by preliminary processing on the continuous strip, it is formed by secondary stamping in the forming die. The material of a single area to be punched is formed into a single product. The area to be punched often contains a finished product area and a waste product area, where the finished product area ultimately becomes part of the product.

[0071] Ideally, the stamping marks in the area to be punched on the continuous strip should be consistent with the standard stamping marks. In the processing die, due to limited processing accuracy, there may be deviations between the stamping marks on the continuous strip and the standard stamping marks. Use the edge detection algorithm to obtain the binary images of the gray image and the standard gray image respectively, denoted as the actual binary image and the standard binary image.

[0072] In this embodiment, the Sobel operator is used to obtain the actual binary image and the standard binary image. As other implementation manners, on the basis of being able to obtain the actual binary image and the standard binary image, the implementer can adopt other existing technologies, such as the Roberts operator, the Prewitt operator, etc., and this application does not make special restrictions.

[0073] By comparing the actual binary image of the area to be punched with the standard binary image, obtain the surface influence degree of the area to be punched, and the expression is:

[0074] In the formula, C represents the surface influence degree of the area to be punched; n represents the number of pixel points in the actual binary image; G i 、G B,i respectively represent the gray values of the i-th pixel point in the actual binary image and the standard binary image.

[0075] It should be noted that: if the deviation of the actual stamping marks in the area to be punched on the current continuous strip compared with the standard stamping marks is larger, then the overall difference between all pixel points at the same position in the actual binary image and the standard binary image is larger, the surface influence degree is larger, indicating that the processing quality of the area to be punched in the preliminary processing is worse, and the degree of punching pressure adjustment required is greater.

[0076] Further, based on the morphological difference value of the current formed product, the surface influence degree of the area to be die-cut, and the gray-scale distribution of all edge pixel points in the gray-scale image of the area to be die-cut, the die-cut adjustment degree of the area to be die-cut is obtained, and the expression is as follows:

[0077] In the formula, ω represents the die-cut adjustment degree of the area to be die-cut; norm() represents the normalization operation; A represents the morphological difference value of the current formed product; C represents the surface influence degree of the area to be die-cut; exp() represents the exponential function with the natural constant as the base, which is used to map -σ to a positive number; σ represents the dispersion degree of the gray-scale values of all edge pixel points in the gray-scale image of the area to be die-cut. In this embodiment, the hyperbolic tangent function is used for the normalization operation.

[0078] In this embodiment, the dispersion degree of the gray-scale values of all edge pixel points in the gray-scale image is the variance. As other implementation manners, on the basis of being able to measure the uneven degree of the distribution of the gray-scale values of all edge pixel points in the gray-scale image, implementers can use other existing technologies for measurement, such as standard deviation, coefficient of variation, etc., and this application does not make special restrictions.

[0079] It should be noted that: in the process of initially processing the material tape to obtain a continuous tape, the process of obtaining the continuous tape is continuous and uninterrupted. Therefore, the quality conditions of the current formed product and the area to be die-cut on the continuous tape are similar to the quality conditions of the area being die-cut in the current forming die. Therefore, based on the situation of the current formed product and the situation of the area to be die-cut on the current continuous tape, the die-cutting pressure of the area being die-cut currently can be controlled. The larger the morphological difference value of the current formed product, the more the die-cutting pressure of the current forming die does not match the situation of the current continuous tape, and the more the die-cutting pressure should be adjusted; at the same time, the larger the surface influence degree of the area to be die-cut on the current continuous tape, the worse the initial processing quality of the area to be die-cut on the current continuous tape, and the more deviation there is in the stamping marks, and a larger die-cutting pressure is required for die-cutting; in addition, if the dispersion degree of the gray-scale values of the edge pixel points is larger, it means that the stamping depths of the stamping marks obtained through initial processing are more inconsistent. At this time, in order to ensure that the finished product area and the waste product area are completely disconnected, a larger die-cutting pressure is required.

[0080] Step 400: Obtain the dynamic die-cutting pressure value of the area to be die-cut through the die-cut adjustment degree, the preset minimum die-cutting pressure, and the preset maximum die-cutting pressure of the forming die for the current continuous tape, and perform die-cutting on the area to be die-cut according to the dynamic die-cutting pressure value.

[0081] By analyzing the die-cut adjustment degree of the area to be die-cut on the current continuous tape, the preset minimum die-cutting pressure, and the preset maximum die-cutting pressure of the forming die for the current continuous tape, the dynamic die-cutting pressure value of the area to be die-cut is obtained, and the expression is as follows:

[0082] F = F min + ω × (F max - F min )); where F represents the dynamic punching pressure value of the area to be punched; ω represents the punching adjustment degree of the area to be punched; F min 、F max respectively represent the preset minimum punching pressure and the preset maximum punching pressure of the forming die for the current continuous strip, which can be obtained from the data manual of the current continuous strip. In this embodiment, the values of the preset minimum punching pressure and the preset maximum punching pressure are 10 KN and 20 KN respectively.

[0083] It should be noted that: the punching pressure of the area to be punched is regulated by the punching adjustment degree. For a smaller punching adjustment degree, it indicates that the quality of the current formed product and the area to be punched is higher, and punching can be achieved by applying a smaller punching pressure, avoiding material deformation; on the contrary, for a larger punching adjustment degree, it indicates that the quality of the current formed product and the area to be punched is worse. At this time, in order to ensure the punching quality and avoid burrs on the punching edge, a larger punching pressure is applied. The schematic diagram of the acquisition process of the dynamic punching pressure value is as Figure 6 shown.

[0084] The area to be punched on the current continuous strip is punched according to the dynamic punching pressure value to obtain a formed product.

[0085] After punching to obtain the formed product, the morphological data of the formed product is acquired by 4 CCD cameras, and the morphological data of the formed product is compared with that of the standard product. If the formed product is unqualified, it is discharged and collected, and the qualified formed product is packaged with a carrier tape. Among them, the method for determining whether the formed product is qualified is: comparing the differences in various morphological data between the formed product and the standard product, which is recorded as the morphological difference. If at least one of the morphological differences exceeds the preset error range, the formed product is unqualified, otherwise the formed product is qualified. For example, if the height of the formed product is 2.630 mm and the height of the standard product is 2.6 mm, the formed product is qualified. Among them, the preset error range needs to be determined jointly according to the design requirements, national standards and production processes. In this embodiment, the preset error range is ±0.05 mm.

[0086] Based on the same inventive concept as the above method, the embodiment of the present application also provides an intelligent punching system for the carrier tape packaging of continuous strip products. The operation flow chart of the intelligent punching system is as Figure 7 shown;

[0087] In the intelligent punching system, two modules are utilized during the product vision inspection and continuous strip inspection processes, including an information acquisition module and a punching pressure adjustment module. Among them, the information acquisition module is used to measure various morphological data of the current formed product and the standard product, and obtain the grayscale image and the standard grayscale image of the area to be punched on the current continuous strip; the information analysis module is used to obtain the morphological difference value of the current formed product through the deviation value distribution of the morphological data between the current formed product and the standard product; obtain the surface influence degree of the area to be punched through the grayscale difference between the grayscale image of the area to be punched and the standard grayscale image; obtain the punching adjustment degree of the area to be punched through the morphological difference value and the surface influence degree, in combination with the grayscale distribution of all edge pixel points in the grayscale image of the area to be punched; obtain the dynamic punching pressure value of the area to be punched through the punching adjustment degree, as well as the preset minimum punching pressure and the preset maximum punching pressure of the forming die on the current continuous strip;

[0088] Punch the area to be punched on the current continuous strip according to the dynamic punching pressure value to obtain the formed product;

[0089] During the industrial inspection process, determine whether the formed product is qualified. If the formed product is unqualified, reject and collect it, and perform carrier tape packaging on the qualified formed products. Control the manipulator to move through the servo motor, accurately feed the qualified formed products into the loading cavity, and place them accurately;

[0090] After the formed products are placed, the driving device is started to drive the transmission wheel to rotate, so that the tape feeding length is the lower tape length for each manipulator to place the products. At the same time, drive the sealing device to press the cover tape downward on the loaded carrier tape, so that the cover tape and the carrier tape are heat-sealed;

[0091] Finally, drive the packaged carrier tape to leave the sealing area through the ratchet, and the induction motor drives the take-up reel to rotate through the rubber belt, so that the packaged carrier tape can be neatly wound on the take-up reel.

[0092] In summary, this application focuses on the control of intelligent punching of continuous strips during the product processing process. Based on the characteristic that adjacent areas on the continuous strip often have similar situations, through the deviation between the formed product at the output end of the forming die and the area to be punched on the input continuous strip, the punching adjustment degree is obtained, the necessity of adjusting the punching pressure for the area to be punched is evaluated, and the adjustment range of the punching pressure is determined;

[0093] Furthermore, by adjusting the punching degree, a dynamic punching pressure value is obtained to achieve dynamic adjustment of the punching pressure for different punching areas on the continuous strip, ensuring high-quality punching of products. This solves the problem in traditional punching industrial control systems where a fixed punching pressure is set, ignoring the stamping trace deviation of the continuous strip during the initial processing and the quality of the actual formed products, which easily causes deformation and burrs in the formed products. It improves the control accuracy of intelligent punching and thus enhances the quality of the products obtained by punching.

[0094] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagram may represent a module, a program segment, or a part of code that contains one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that marked in the accompanying drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than that disclosed in the description. Sometimes, there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. Each block in the block diagram and / or flowchart, as well as combinations of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system that performs the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

[0095] For those skilled in the art, it is obvious that this application is not limited to the details of the above exemplary embodiments, and without departing from the basic features of this application, this application can be implemented in other specific forms. Therefore, from any point of view, the above embodiments of this application should be regarded as exemplary and non-restrictive.

Claims

1. An intelligent punching method for continuous strip product carrier packaging, characterized in that: The method comprises the following steps: Measure various morphological data of the current molded product and the standard product, and obtain the grayscale image and standard grayscale image of the area to be punched on the current continuous material strip; Obtain the morphological difference value of the current molded product through the distribution of the deviation value of the morphological data between the current molded product and the standard product; Obtain the surface influence of the area to be punched by the grayscale difference between the grayscale image of the area to be punched and the standard grayscale image; Obtaining the punching adjustment degree of the area to be punched by combining the morphological difference value and the surface influence with the grayscale distribution of all edge pixels in the grayscale image of the area to be punched; Obtain the dynamic punching pressure value of the area to be punched through the punching adjustment degree, and the preset minimum punching pressure and the preset maximum punching pressure of the forming die on the current continuous material strip; The area to be punched is punched according to the dynamic punching pressure value.

2. The intelligent punching method for continuous tape product carrier tape packaging according to claim 1, characterized in that: The process of obtaining the morphological difference value is as follows: Counting the maximum and minimum values ​​of all the deviation values ​​of the current molded product, and calculating the mean of all the deviation values ​​of the current molded product; The morphological difference value is positively correlated with the maximum value and the mean value, and negatively correlated with the minimum value.

3. The intelligent punching method for continuous tape product carrier packaging as claimed in claim 2, characterized in that: The expression of the morphological difference value is: Where A represents the morphological difference value of the current molded product; P max , P min Respectively represent the maximum value and the minimum value; P mad represents the mean; ε represents a preset value greater than 0.

4. The intelligent punching method for continuous tape product carrier packaging according to claim 1, characterized in that: The process of obtaining the surface influence degree is as follows: Using edge detection algorithm, a binary image of grayscale image and a binary image of standard grayscale image are obtained respectively, which are recorded as actual binary image and standard binary image; The expression of the surface influence degree is: Where C represents the surface influence of the area to be punched; n represents the number of pixels in the actual binary image; G i , G B,i They represent the grayscale value of the i-th pixel in the actual binary image and the standard binary image respectively.

5. The intelligent punching method for continuous tape product carrier packaging according to claim 1, characterized in that: The process of obtaining the punching adjustment degree is as follows: An edge detection algorithm is used to obtain each edge pixel point in the grayscale image of the area to be punched; Calculate the discreteness of the grayscale values ​​of all edge pixels in the grayscale image of the area to be punched; The punching adjustment degree is positively correlated with the morphological difference value, the surface influence degree, and the discreteness, respectively.

6. The intelligent punching method for continuous tape product carrier packaging as claimed in claim 5, characterized in that: The expression of the punching adjustment degree is: Wherein, ω represents the punching adjustment degree of the area to be punched; norm() represents the normalization operation; A represents the morphological difference value of the current molded product; C represents the surface influence degree of the area to be punched; exp() represents the exponential function with a natural constant as the base; σ represents the discreteness of the grayscale values ​​of all edge pixels in the grayscale image of the area to be punched.

7. The intelligent punching method for continuous tape product carrier packaging according to claim 1, characterized in that: The process of obtaining the dynamic punching pressure value is as follows: Calculating the difference between the preset maximum punching pressure and the preset minimum punching pressure; The dynamic punching pressure value is positively correlated with the preset minimum punching pressure, the punching adjustment degree, and the difference value, respectively.

8. An intelligent punching method for continuous tape product carrier packaging as claimed in claim 7, characterized in that: The expression of the dynamic punching pressure value is: F=F min +ω×(F max -F min ), where F represents the dynamic punching pressure value of the area to be punched; ω represents the punching adjustment degree of the area to be punched; F min 、F max They respectively represent the preset minimum punching pressure and the preset maximum punching pressure of the forming die on the current continuous material strip.

9. The intelligent punching method for continuous tape product carrier packaging according to claim 1, characterized in that: For any molded product obtained by punching, the differences in various morphological data between the molded product and the standard product are compared and recorded as morphological differences. If at least one of the morphological differences exceeds the preset error range, the molded product is unqualified and is discarded and stored. Otherwise, the molded product is packaged with carrier tape.

10. An intelligent punching system for continuous material strip product carrier packaging, using an intelligent punching method for continuous material strip product carrier packaging in claim 1, characterized in that: The system comprises: The information acquisition module is used to measure various morphological data of the current formed product and the standard product, and obtain the grayscale image and standard grayscale image of the area to be punched on the current continuous material strip; An information analysis module is used to obtain the morphological difference value of the current molded product through the deviation value distribution of the morphological data between the current molded product and the standard product; Obtain the surface influence of the area to be punched by the grayscale difference between the grayscale image of the area to be punched and the standard grayscale image; Obtaining the punching adjustment degree of the area to be punched by combining the morphological difference value and the surface influence with the grayscale distribution of all edge pixels in the grayscale image of the area to be punched; The dynamic punching pressure value of the area to be punched is obtained through the punching adjustment degree, and the preset minimum punching pressure and the preset maximum punching pressure of the forming die on the current continuous material strip.

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