Leather mold for shoes and bags and manufacturing method

Abstract

The invention relates to the technical field of mold manufacturing, and discloses a leather mold for shoes and bags and a manufacturing method.The method comprises the steps that data of materials to be processed are obtained, a 2D model is generated, and the 2D model is preprocessed; extracting a part contour of the preprocessed 2D model; designing a sheet material mold according to the component contour; and the mold design parameters are converted into cutting data, and mold machining is conducted based on the cutting data. According to the method, the 2D model is generated, the part contour is extracted to machine the mold, the manufacturing precision and the production efficiency of the mold are improved, and the precision and the efficiency of the sheet edge are improved by applying the mold.

Description

Technical Field

[0001] The present invention relates to the technical field of mold manufacturing, and more particularly, to a genuine leather mold for shoes and bags and a manufacturing method thereof. Background Art

[0002] Shoe-making sheet materials generally refer to the collective term for various materials used to make shoe uppers, soles, linings, etc. in the shoe-making industry. The sheet material mold not only affects the comfort, appearance, and quality of shoes, but also relates to aspects such as production efficiency, cost, and personalized customization requirements. However, different products have different thickness requirements due to design needs. Currently, the existing sheet material operation is processed by a band knife machine, and the edge trimming is processed by a round knife machine. When trimming the edge, the controller needs to be adjusted at any time. When the same part requires multiple edge trimming processes, the staff needs to constantly switch and debug the equipment controller, which is time-consuming and laborious, and the work efficiency is low. The quality of the part edge trimming cannot be guaranteed. Even for products of the same category, their structures are different, and the process of different parts has changes, and their thickness requirements are also different. In the actual operation process, when cutting and blanking at the same time, the obtained shoe upper parts have different thicknesses because they come from different leather sheets or different parts of the same leather sheet. In addition, for some areas that need to be reinforced, after pasting the reinforcing material, the overall thickness also exceeds the specified thickness, so the overall accuracy is not high. For example, after the edge folding operation of the shoe upper part that needs to be folded, the local thickness is twice the original thickness, which not only makes the finished shoe uncomfortable to wear, but also is not conducive to the subsequent sewing process.

[0003] Therefore, it is necessary to design a genuine leather mold for shoes and bags and a manufacturing method thereof to solve the problems existing in the current technology. Summary of the Invention

[0004] In view of this, the present invention provides a genuine leather mold for shoes and bags and a manufacturing method thereof, aiming to solve the problems of poor accuracy and low efficiency of the current edge trimming process.

[0005] On the one hand, the present invention provides a manufacturing method for a genuine leather mold for shoes and bags, including:

[0006] Obtaining the data of the material to be processed, generating a 2D model, and preprocessing the 2D model;

[0007] Extracting the part contour of the preprocessed 2D model;

[0008] Designing a sheet material mold according to the part contour;

[0009] Converting the mold design parameters into cutting data, and machining the mold based on the cutting data.

[0010] Further, when extracting the part contour of the preprocessed 2D model, it includes:

[0011] Determine the initial thickness of the 2D model based on the material data to be processed;

[0012] Expand the contour perimeter allowance according to the initial thickness of the 2D model;

[0013] Define the die thickness and die slope of the die in combination with the initial thickness of the 2D model;

[0014] Identify the depth of the cutting area through several color lines.

[0015] Furthermore, when defining the die thickness and die slope of the die, it includes:

[0016] The die thickness of the die is formed by the width combination of multiple layers of structures;

[0017] In the multiple-layer structure, the thickness difference of each layer of material forms the die slope of the die.

[0018] Furthermore, the die design includes the following steps:

[0019] Generate a sheet slope based on the material data to be processed, and the material data to be processed includes the width of the part sheet edge, the middle thickness, and the edge thickness;

[0020] Combined with image processing, simulate the visual effect of the sheet slope through the layered thickness drop.

[0021] Furthermore, when generating the sheet slope, it includes:

[0022] Obtain the standard sheet process thickness based on the material thickness and the die depth;

[0023] Obtain the standard width of the part sheet process based on the die sheet width;

[0024] Obtain the material thickness of the part based on the die depth;

[0025] Obtain the depth of the corresponding position of the die based on the edge thickness of the part.

[0026] Furthermore, when converting the die design parameters into cutting data, it includes:

[0027] Calculate the die depth:

[0028] D m ≥H m ;

[0029] where D m is the die depth, and H m is the material thickness;

[0030] Calculate the standard sheet process thickness:

[0031] H 8 = H m - D m ;

[0032] Wherein, H 8 is the difference between the material thickness H m and the die depth D m ;

[0033] Calculate the standard width of the part sheet metal process:

[0034] W m = W 8 ;

[0035] Where W m is the die sheet metal width, and W 8 is the standard width of the part sheet metal process;

[0036] Calculate the part material thickness:

[0037] H b = D b ;

[0038] Where H b is the part edge thickness, and D b is the depth at the corresponding position of the die;

[0039] Check that the cutting path is continuous and has no overlaps or breaks;

[0040] Check that the cutting position depths are consistent.

[0041] Furthermore, when converting the die design parameters into cutting data, it also includes:

[0042] Generate a cutting path data file, which includes the coordinates of each cutting point, the cutting direction, and the cutting order;

[0043] Generate a depth data file for each cutting position;

[0044] Generate a cutting speed and cutting pressure data file.

[0045] Furthermore, when machining the die based on the cutting data, it includes:

[0046] Preprocess the die to be machined, and the preprocessing includes surface treatment and deburring;

[0047] Calibrate the machining equipment, and the calibration includes positioning accuracy and repeatability accuracy;

[0048] According to the cutting data, perform preliminary machining to remove excess material;

[0049] Fine process the initially processed contour, trim the contour edges, and clean the residual PVC strips.

[0050] Compared with the prior art, the beneficial effects of the present invention are as follows: By obtaining the data of the material to be processed and generating a 2D model, and preprocessing the 2D model, the accuracy and reliability of the initial data are ensured. When extracting the part contour, the initial thickness of the 2D model is determined based on the data of the material to be processed, and the contour perimeter allowance is expanded according to the thickness, ensuring that the material can be completely penetrated and the edges are flat and smooth during cutting and stamping, avoiding processing errors caused by uneven material thickness. Combining with the initial thickness of the 2D model, the thickness and slope of the mold are defined. The thickness of the mold is formed by the width combination of multiple layers of structures, and the thickness difference of each layer of material forms the slope of the mold. The multi-layer structure can not only accurately control the thickness of the sheet edge and the middle width, but also adapt to the characteristics of different materials, improving the applicability and flexibility of the mold. When converting the mold design parameters into cutting data, it is ensured that the cutting or stamping process can completely penetrate the material, avoiding problems such as material residue and incomplete processing. During the mold processing, the mold to be processed is preprocessed to make the mold surface smoother, reducing the resistance and wear in subsequent processing. It improves the manufacturing precision and production efficiency of the mold, optimizes the quality of the final product, reduces the skill requirements for operators, reduces the equipment debugging time during the sheet material process, has low skill requirements for operators, and at the same time realizes the standardized operation of sheet materials, improving the operation standardization. By pre-constructing the mold and then realizing the standardized sheet materials through the mold, the degree of automation is improved, and the part errors caused by manual operation are reduced. Especially during mass production, the fatigue caused by long-term operation of operators is reduced, which in turn affects the final quality of the sheet edge, improving the consistency and standardization of the sheet edge, and solving the problems of low efficiency and low precision during mass production.

[0051] On the other hand, the present application also provides a genuine leather mold for shoe bags, which is used to apply the above-mentioned method for manufacturing a genuine leather mold for shoe bags, including:

[0052] A mold body, the contour of the mold body being consistent with the data of the material to be processed;

[0053] A sealing edge unit, arranged on the contour of the mold body, for defining the material contour;

[0054] A storage unit, arranged on the mold body, and the storage unit being located within the sealing edge unit, for storing the material and restricting its thickness.

[0055] It can be understood that the above-mentioned genuine leather mold for shoe bags has the same beneficial effects and will not be elaborated here. Description of the Drawings

[0056] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the following detailed description of the preferred embodiments. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Also, throughout the drawings, the same reference numerals are used to denote the same components. In the drawings:

[0057] Figure 1 It is a flowchart of a method for manufacturing a genuine leather mold for shoe bags according to an embodiment of the present invention;

[0058] Figure 2 It is a schematic diagram of a mold provided by an embodiment of the present invention.

[0059] Wherein: 1. Mold body; 2. Edge-sealing unit; 3. Storage unit. Detailed implementation manners

[0060] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0061] Shoemaking sheet material usually refers to the general term for various materials used to make uppers, soles, linings and other parts in the shoemaking industry. In the process of making shoes, bags, genuine leather and PU products, different types and sizes will lead to different thickness requirements for uppers, soles, etc. Even for the same category of products, their structures are different, and the parts have different processes, which requires different thicknesses. At the same time, when cutting and blanking, the upper parts obtained are different in thickness because they come from different leathers or different parts of the same leather; in addition, some parts that need to be reinforced have an overall thickness that exceeds the specified thickness after the reinforcement material is pasted, so the thickness also needs to be adjusted. Therefore, sheet materials play an extremely important role. Sheet materials make the joints of the edge parts smooth, the contours clear, and the inlay parts flat. The one-knife product is processed with sheet material, and the burrs at the fracture are not exposed, which improves the appearance quality of the product. The quality of the sheet material not only affects the comfort, appearance and quality of the shoes, but also is related to production efficiency, cost and personalized customization needs. However, the existing sheet material operation has a low degree of mechanization and automation, and is more of a combination of man and machine. It requires operators to be familiar with the equipment and rely on the level of operator skills, which will cause errors in the components and affect the accuracy of the finished product. The existing sheet material operation uses a circular knife machine. The operator needs to constantly adjust the direction of the cutting piece, and needs to constantly control the feeding speed, front and back distance, shoveling width, and height and inclination of the duck foot of the circular knife machine, etc., which not only requires high skills for the operator, but also requires the accumulation of experience, which leads to a long training cycle for the operator. In addition, the existing sheet edge needs to constantly adjust multiple controllers of the equipment, and multiple controllers need to be adjusted in place at the same time to meet the process requirements of the sheet edge. When to adjust and the degree of adjustment require the operator to judge based on experience, which will lead to an increase in variables, and is time-consuming and labor-intensive, with low work efficiency. The quality of the product cannot be guaranteed, and consistency and standardization cannot be achieved.

[0062] Therefore, there is an urgent need for a technology that can solve the problems of low automation and poor consistency.

[0063] In some embodiments of the present application, see Figure 1 As shown, a method for making a genuine leather mold for shoes and bags comprises:

[0064] S100 acquires data of the material to be processed, generates a 2D model, and pre-processes the 2D model;

[0065] S200 extracts the component contours of the preprocessed 2D model;

[0066] S300 designs sheet molds based on part contours;

[0067] S400 converts the mold design parameters into cutting data and performs mold processing based on the cutting data.

[0068] Specifically, first obtain the material data to be processed. The data includes material thickness, process requirements, component locations, as well as appearance information such as the color and texture of the material. Then, generate a 2D model based on the material data to be processed, ensuring the consistency between the 2D model and the actual product, which is convenient for subsequent processing and manufacturing. Preprocess the 2D model, including format conversion and optimized layout, to minimize material waste during the cutting process. This includes adjusting the spacing between components, arrangement order, etc., to improve material utilization rate. Extract the outlines of each component from the preprocessed 2D model. Based on the extracted component outlines, design a blanking die. Die design needs to consider the physical properties of the material, such as thickness, hardness, etc., to ensure that the material does not deform or get damaged during the cutting process. Determine the size and shape of the die according to the size and shape of the component outline. The edges of the die need to be designed to be smooth and without sharp corners to reduce wear and tear during cutting. Then, convert the parameters of the die design, such as size, shape, auxiliary lines, etc., into a data format and instructions that the cutting equipment can recognize. Process the die according to the cutting data. Set the parameters of the band knife machine based on the cutting data, where the blank thickness is equal to the material thickness plus 0.1 mm. After placing the component into the blanking die, send it into the band knife machine for thinning; compare the thinned component with the material data to be processed, and confirm whether the edge thickness and width of the component meet the standards according to the comparison results.

[0069] It can be understood that in the footwear industry, especially in the production of high - end shoes and handbags, the use of genuine leather materials is very common. However, the properties of genuine leather materials are complex and have extremely high requirements for processing accuracy. Traditional die - making methods often rely on manual experience and manual operations, making it difficult to achieve high - precision and high - efficiency production. To improve the efficiency and quality of footwear and handbag production, by preprocessing the 2D model, including format conversion and optimized layout, material waste can be minimized. In traditional footwear and handbag production, material layout mainly relies on manual experience and manual operations, making it difficult to achieve the optimal layout plan, resulting in low material utilization rate. Through layout optimization, the arrangement spacing and order of each component can be calculated to ensure full utilization of the material during the cutting process. By finely adjusting the spacing between components, material waste caused by too large a spacing can be avoided; by reasonably arranging the component order, waste at the starting and ending points during cutting can be reduced. This reduces production costs.

[0070] Traditional methods for making shoe and handbag molds mainly rely on manual operations, and it is difficult to guarantee the processing accuracy. By generating a 2D model and performing preprocessing, the consistency between the model and the actual product is ensured. In the process of extracting the part contours, algorithms can accurately identify and extract the contours of each part, avoiding human errors. When designing the mold, the physical properties of the material, such as thickness and hardness, are considered to ensure that the material will not deform or be damaged during the cutting process. The edges of the mold are designed to be smooth and without sharp corners, reducing wear and tear during cutting and ensuring the processing accuracy. Finally, the mold design parameters are converted into cutting data, and the parameters of the band knife machine are set to achieve high-precision mold processing. This not only improves the processing accuracy of the mold but also ensures the quality of the final product. By first processing the mold and then trimming the parts according to the mold, the production efficiency is improved, and the time and labor intensity of manual operations are reduced. With the diversification of consumer demands, the styles and designs of shoes and handbags are constantly changing. Due to relying on manual operations, traditional mold-making methods are difficult to quickly adapt to new design requirements, resulting in a long production cycle and low efficiency. However, this method can quickly generate new 2D models and mold designs to adapt to diverse design requirements.

[0071] In some embodiments of the present application, when extracting the part contours of the preprocessed 2D model, it includes:

[0072] Based on the material data to be processed, determine the initial thickness of the 2D model;

[0073] According to the initial thickness of the 2D model, expand the contour peripheral allowance;

[0074] Combined with the initial thickness of the 2D model, define the mold thickness and mold slope of the mold;

[0075] Identify the depth of the cutting area through several color lines.

[0076] In some embodiments of the present application, when defining the mold thickness and mold slope of the mold, it includes:

[0077] The mold thickness of the mold is formed by the width combination of multiple layers of structures;

[0078] In the multiple layers of structures, the thickness difference of each layer of material forms the mold slope of the mold.

[0079] Specifically, first, detailed data of the material to be processed is obtained, including the thickness of the material, process requirements, component parts, and appearance information such as the color and texture of the material. Before extracting the component contour, the initial thickness of the 2D model needs to be determined based on the thickness data of the material to be processed, ensuring that the actual thickness of the material can be accurately reflected in subsequent contour extraction and mold design. To ensure that the edges of the material do not affect the quality of the final product due to cutting errors during actual processing, the component contour needs to be enlarged around the perimeter according to the initial thickness of the 2D model. The amount of enlargement can be adjusted according to the characteristics of the material and process requirements, usually increasing the edge margin by 0.1 mm to 0.5 mm to ensure the accuracy of cutting and the integrity of the material. After determining the initial thickness and contour enlargement of the 2D model, the thickness and slope of the mold need to be defined. The thickness of the mold is usually designed as the material thickness plus a certain safety margin to ensure that the mold can firmly support the material during cutting. The slope of the mold is designed according to the thickness difference of the material and process requirements. The role of the slope is to control the thickness of the edge and the width in the middle, avoiding deformation or tearing of the material during cutting. In the 2D model, the depth of different cutting areas is identified by several color lines. These color lines not only help the cutting equipment identify the cutting path but also control the cutting depth. The method of color identification helps to improve the accuracy and efficiency of cutting, reducing material waste and product quality problems caused by improper cutting depth.

[0080] The thickness of the mold is achieved through the width combination of multiple layers of structures. The thickness of each layer of material is selected and combined as needed to achieve the total thickness of the mold required finally. The slope of the mold is formed by the thickness difference between each layer of material. The slope needs to consider the physical properties of the material, such as hardness and elasticity, to ensure that the material can remain stable during cutting without deformation or damage. The role of the slope is to control the thickness of the edge and the width in the middle, ensuring that the appearance and function of the final component meet the design requirements.

[0081] It is understandable that after obtaining the detailed data of the material to be processed, the initial thickness of the 2D model is determined according to the thickness data of the material to ensure the consistency between the 2D model and the actual material, laying a foundation for subsequent contour extraction and die design. To ensure that in actual processing, the edges of the material will not affect the quality of the final product due to cutting errors, a peripheral allowance is made for the part contour according to the initial thickness of the 2D model. The size of the allowance is adjusted according to the material properties and process requirements, usually increasing the edge margin by 0.1 mm to 0.5 mm to ensure the accuracy of cutting and the integrity of the material. After determining the initial thickness of the 2D model and the contour allowance, the thickness of the die is defined in combination with these data. The thickness of the die is usually designed as the material thickness plus a certain safety margin to ensure that the die can firmly support the material during cutting. The thickness of the die can be achieved through the width combination of multiple layers. The thickness of each layer of material is selected and combined as needed to reach the total thickness of the die required finally. The multi-layer structure not only improves the stability of the die but also enables the thickness of the die to be precisely adjusted to meet the production requirements of different materials and different products. In the 2D model, the depths of different cutting areas are identified by several color lines. These color lines not only help the cutting equipment identify the cutting path but also control the cutting depth. Different color lines represent different cutting depths. The cutting equipment can perform precise depth control according to the indication of the color lines, reducing material waste and quality problems caused by improper cutting depth. It simplifies the setup and operation of the cutting equipment and also improves the cutting efficiency and accuracy. The thickness of the die is achieved through the width combination of multiple layers. The thickness of each layer of material is selected and combined as needed to reach the total thickness of the die required finally. The multi-layer structure not only improves the stability of the die but also enables the thickness of the die to be flexibly adjusted. Through the width combination of the multi-layer structure, the thickness of the die can be flexibly adjusted to meet the production requirements of different materials and different products. The slope of the die is formed by the thickness difference between each layer of material. The thickness difference between each layer of material is set according to the process requirements to form the required slope. The design of the slope needs to consider the physical properties of the material, such as hardness and elasticity, to ensure that the material can remain stable during cutting and will not deform or tear. The role of the slope is to control the thickness of the sheet edge and the middle width to ensure that the appearance and function of the final part meet the design requirements.

[0082] In some embodiments of the present application, the die design includes the following steps:

[0083] Based on the data of the material to be processed, a sheet slope is generated. The data of the material to be processed includes the width of the part sheet edge, the middle thickness, and the edge thickness;

[0084] Combined with image processing, the visual effect of the sheet slope is simulated through the thickness drop of each layer.

[0085] In some embodiments of the present application, when generating the slope of the sheet material, it includes:

[0086] Obtaining the standard process thickness of the sheet material based on the material thickness and the die depth;

[0087] Obtaining the standard process width of the component sheet material based on the width of the die sheet material;

[0088] Obtaining the component material thickness based on the die depth;

[0089] Obtaining the depth of the corresponding position of the die based on the thickness of the component edge.

[0090] It can be understood that by combining image processing, such as PS software, etc., the visual effect of the simulated sheet material slope is constructed, and the standard process thickness of the sheet material is calculated by subtracting the die depth difference from the material thickness. Ensure that in actual processing, the thickness of the sheet material can be accurately controlled, avoiding product quality problems caused by inconsistent thickness. Different materials and process requirements can have different die depth differences, which can flexibly adapt to different types of materials and product designs. The width of the die sheet material matches the standard process width of the component sheet material, ensuring accurate dimensions of the sheet material during the cutting process and avoiding material waste and product defects caused by inconsistent width. The die depth is greater than or equal to the component material thickness, ensuring the stability of the material during the cutting process and avoiding inaccurate cutting or material damage caused by insufficient die depth. Ensure the cutting performance of the die, so that in actual processing, the die can fully support and fix the material, improving the feasibility and success rate of cutting. The thickness of the component edge is accurately controlled through the depth of the corresponding position of the die, ensuring that the edge meets the design requirements and improving the appearance quality of the product. After generating the slope of the sheet material, through image processing technology, the visual effect of the sheet material slope can be simulated. This not only helps to intuitively understand the actual effect of the die design but also can be verified and adjusted before actual production. The visual effect of the sheet material slope is simulated through the thickness drop of the multi-layer structure. The slope formed by the thickness difference of each layer of material can be intuitively displayed in the 2D model, facilitating inspection and adjustment.

[0091] In some embodiments of the present application, when converting the die design parameters into cutting data, it includes:

[0092] Calculating the die depth:

[0093] D m ≥H m ;

[0094] Where D m is the die depth, and H m is the material thickness;

[0095] Calculating the standard process thickness of the sheet material:

[0096] H 8= H m - D m ;

[0097] Wherein, H 8 is the material thickness H m minus the die depth D m difference;

[0098] Calculate the process standard width of the component sheet material:

[0099] W m = W 8 ;

[0100] Where W m is the die sheet material width, and W 8 is the process standard width of the component sheet material;

[0101] Calculate the component material thickness:

[0102] H b = D b ;

[0103] Where H b is the component edge thickness, and D b is the depth at the corresponding position of the die;

[0104] Check that the cutting path is continuous and has no overlaps or breakpoints;

[0105] Check that the cutting position depths are consistent.

[0106] It can be understood that, first, according to the material thickness and die depth in the sheet material slope, calculate whether the die depth meets the requirement of being greater than or equal to the material thickness. If not, increase the die depth to ensure complete penetration of the material, ensuring the integrity and reliability of the cutting and avoiding problems such as incomplete cutting or material damage caused by insufficient die depth. Second, calculate the process standard thickness of the sheet material through the formula that the difference between the material thickness and the die depth is equal to the process standard thickness of the sheet material, where H 8It represents the difference between the material thickness and the die depth, indicating the allowance left during the stamping or cutting process, ensuring the flatness and smoothness of the edges, improving the quality of the cutting edges, and at the same time ensuring that the process standard thickness of each component is consistent, avoiding product quality problems caused by inconsistent thickness. Then, ensure that the dimensions can be kept consistent and accurate during the cutting or stamping process. By the formula that the width of the die sheet material is equal to the process standard width of the component sheet material, the width of the die sheet material is matched with the process standard width of the component sheet material, ensuring that in actual processing, the width of the sheet material is accurate, avoiding material waste and product defects, and improving the cutting or stamping efficiency and material utilization rate. Next, by the formula that the thickness of the component edge is equal to the depth of the corresponding position of the die, ensure that the edge thickness meets the standard, optimize the cutting or stamping path, reduce the cutting time and material waste, and improve the appearance quality and functional performance of the product. Finally, check whether the cutting path is continuous and has no overlap or breakpoint to ensure that the path during the cutting or stamping process is accurate, avoiding processing errors or material waste caused by path problems. At the same time, check whether the cutting position depths are consistent to ensure that the depth standards of each cutting position are unified, further improving the cutting accuracy and product quality.

[0107] In some embodiments of the present application, when converting the die design parameters into cutting data, it further includes:

[0108] Generating a cutting path data file, which includes the coordinates of each cutting point, the cutting direction, and the cutting order;

[0109] Generating a depth data file for each cutting position;

[0110] Generating a cutting speed and cutting pressure data file.

[0111] It can be understood that the three-dimensional design data of the die is usually provided in the CAD file format (such as STEP, IGES, STL, etc.). The machining parameters include the tool type (such as cutting tool, milling cutter, etc.), tool diameter, cutting depth, feed rate, cutting speed, etc., as well as the thickness, hardness, cutting allowance of the material, etc. Finally, determine the continuity and accuracy of the cutting path, edge treatment (such as whether chamfering or trimming is required), etc. Import the die model into CAM (Computer Aided Manufacturing) software, such as Mastercam, Fusion 360, PowerMill, etc., to generate a cutting file. The CAM software will automatically generate the tool path according to the machining strategies and parameters defined by the user. The tool path includes information such as the movement trajectory of the tool, cutting depth, feed rate, etc., and then preview the tool path to check for interference, overcutting, or discontinuous path problems. Convert the generated tool path into a cutting file that can be recognized by the numerical control machine tool, usually G-code (such as NC file, ISO file, etc.).

[0112] First, a cutting path data file is generated. The cutting path data file contains the coordinates, cutting directions, and cutting sequences of each cutting point. Based on the data of the mold design, it ensures the continuity of the cutting path without overlap or breakpoints. The recording of the cutting point coordinates enables the automated cutting equipment to perform cutting accurately without errors, avoiding cutting inaccuracies or material waste caused by coordinate errors. The clear indication of the cutting direction ensures that the direction of the cutting tool is consistent during the cutting process, avoiding cutting quality problems caused by direction changes. The optimization of the cutting sequence guarantees the rationality of the cutting path, reducing the cutting time and tool wear. Secondly, a depth data file for each cutting position is generated, ensuring the consistency of the depth during the cutting process. Through the generation of the depth data file, the automated cutting equipment can precisely control the cutting depth at each position, avoiding material damage or incomplete cutting caused by inconsistent depths. The control of the depth data not only improves the accuracy and reliability of the cutting but also ensures the appearance quality and functional performance of the product. Finally, a cutting speed and cutting pressure data file is generated. The reasonable setting of the cutting speed and cutting pressure plays a crucial role in cutting quality and production efficiency. The optimization of the cutting speed can reduce the cutting time and improve production efficiency on the premise of ensuring cutting quality. The control of the cutting pressure ensures that the contact force between the cutting tool and the material during the cutting process is appropriate, avoiding material deformation or damage caused by excessive pressure and incomplete cutting caused by insufficient pressure. The generation of the cutting speed and cutting pressure data file provides detailed operating parameters for the automated cutting equipment, ensuring the stability and precision of the cutting process, thereby improving the quality and production efficiency of the product.

[0113] In some embodiments of the present application, when machining a mold based on cutting data, it includes:

[0114] Preprocessing the mold to be machined, where the preprocessing includes surface treatment and deburring;

[0115] Calibrating the machining equipment, where the calibration includes positioning accuracy and repeatability accuracy;

[0116] Performing preliminary machining according to the cutting data to remove excess material;

[0117] Performing fine machining on the contour after preliminary machining and trimming the contour edges to clean the residual PVC strips.

[0118] It is understandable that, first of all, the mold to be processed is pre-treated, including surface treatment and deburring, to improve the surface finish and overall quality of the mold. The surface treatment makes the mold surface smooth and flawless, reducing tool wear and material damage caused by surface unevenness during the processing, thus extending the service life of the mold. Deburring ensures the accuracy and aesthetics of the mold in subsequent processing, avoiding local stress concentration caused by burrs and reducing errors and material waste during the cutting process. The pre-treatment step not only provides a good foundation for mold processing but also improves the quality and efficiency of subsequent processing. Secondly, the processing equipment is calibrated, including positioning accuracy and repeatability accuracy. Calibration of the positioning accuracy ensures that the cutting equipment arrives precisely at each cutting point, avoiding cutting path deviation and incomplete cutting caused by positioning errors. Calibration of the repeatability accuracy guarantees the stability of the equipment during multiple cuts, enabling each cut to be made at the same position and the same depth, thus improving the consistency and reliability of the cutting. Next, preliminary processing is carried out according to the cutting data to remove most of the excess material. The goal of the preliminary processing is to quickly remove most of the excess material under the premise of ensuring the basic cutting path and depth, creating conditions for subsequent fine processing. Guided by the cutting data, the equipment can perform preliminary cutting, reducing unnecessary material waste and improving production efficiency. The preliminary processing also provides a good foundation for subsequent fine processing, making the fine processing process smoother and more efficient. Then, the contour after preliminary processing is finely processed according to the cutting data, and the contour edges are trimmed. Fine processing is a key step to ensure the quality of the cutting edge and dimensional accuracy. Guided by the cutting data, the equipment can perform more precise cutting and trimming on the basis of the preliminary processing to ensure the flatness and smoothness of the cutting edge. This process not only improves the appearance quality of the product but also ensures the dimensional accuracy, avoiding product defects caused by uneven edges. Trimming of the contour edges further improves the overall quality of the product by removing minor defects in the preliminary processing. Finally, the residual PVC tape is cleaned. The PVC tape may remain during the processing, affecting the aesthetics and performance of the product.

[0119] In the above embodiments, by obtaining the data of the material to be processed and generating a 2D model, and preprocessing the 2D model, the accuracy and reliability of the initial data are ensured. When extracting the part contour, the initial thickness of the 2D model is determined based on the data of the material to be processed, and the contour perimeter allowance is expanded according to the thickness, ensuring that the material can be completely penetrated and the edge is smooth and flat during the cutting and stamping processes, avoiding the processing errors caused by uneven material thickness. Combining with the initial thickness of the 2D model, the thickness and slope of the mold are defined. The thickness of the mold is formed by the width combination of the multi-layer structure, and the thickness difference of each layer of material forms the slope of the mold. The multi-layer structure can not only accurately control the thickness of the sheet edge and the middle width, but also adapt to the characteristics of different materials, improving the applicability and flexibility of the mold. When converting the mold design parameters into cutting data, it is ensured that the cutting or stamping process can completely penetrate the material, avoiding the problems of material residue and incomplete processing. During the mold processing, the mold to be processed is preprocessed to make the mold surface smoother, reducing the resistance and wear in the subsequent processing. It improves the manufacturing precision and production efficiency of the mold, optimizes the quality of the final product, reduces the skill requirements for operators, reduces the equipment debugging time during the sheet material process, has low skill requirements for operators, and at the same time realizes the standardized operation of sheet material, improving the operation standardization. By pre-constructing the mold and then realizing the standardized sheet material through the mold, the degree of automation is improved, and the part errors caused by manual operation are reduced. Especially during mass production, the fatigue caused by long-term operation of operators is reduced, which may affect the final quality of the sheet edge, improving the consistency and standardization of the sheet edge, and solving the problems of low efficiency and low precision during mass production.

[0120] In another preferred manner based on the above embodiments, referring to Figure 2 as shown, this embodiment provides a genuine leather mold for shoe bags, which is used to apply the above method for manufacturing a genuine leather mold for shoe bags, and includes:

[0121] A mold body, the contour of the mold body is consistent with the data of the material to be processed;

[0122] A sealing edge unit, which is arranged on the contour of the mold body and is used to define the material contour;

[0123] A storage unit, which is arranged on the mold body, and the storage unit is located inside the sealing edge unit and is used to store the material and limit its thickness.

[0124] It is understandable that the designed mold is applicable to local edge shearing and overall through-sheeting operations, and supports at least one of the processes of edge folding, tabbing, seam joining, inside-out turning, reverse folding, and single-edge cutting. This versatility enables the mold to be flexibly applied in different process operations, meeting various production requirements. The compatibility of local edge shearing and overall through-sheeting operations allows the mold to handle different types of sheet materials, expanding the scope of application of the mold. The ability to support multiple process operations further enhances the flexibility and production efficiency of the mold, reducing the number and time of mold replacements, and lowering production costs.

[0125] The contour of the mold body matches the data of the material to be processed, ensuring a high degree of matching between the mold and the material, and improving the accuracy and efficiency of processing. The edge-sealing unit is set on the contour of the mold body to define the contour of the material, enabling the material to maintain a stable shape and size during the processing, and avoiding processing errors caused by material movement or deformation. The storage unit is set on the mold body and located within the edge-sealing unit to store the material and limit its thickness, ensuring that the material has a consistent thickness during the processing, and improving the quality of the product. First, the matching of the contour of the mold body with the data of the material to be processed ensures a high degree of matching between the mold and the material, enabling the mold to cut and process accurately without errors, and avoiding cutting errors and material waste caused by the mismatch between the mold and the material. Through the mold design, each step in the processing can be carried out along a predetermined path and depth, improving the accuracy and efficiency of processing. In addition, the high degree of matching between the mold and the material also reduces the adjustment and correction time during the processing, improving the production efficiency. Second, the edge-sealing unit is set on the contour of the mold body to define the contour of the material. The function of the edge-sealing unit is to ensure that the material maintains a stable shape and size during the processing, and avoid processing errors caused by material movement or deformation. Through the limitation of the edge-sealing unit, the material can be kept within the predetermined contour during cutting and processing, ensuring the smoothness and flatness of the cutting edge. This not only improves the appearance quality of the product but also ensures the dimensional accuracy, avoiding product defects caused by uneven edges. The setting of the edge-sealing unit also reduces the waste of materials during the processing, improving the material utilization rate. The storage unit is set on the mold body and located within the edge-sealing unit to store the material and limit its thickness. The function of the storage unit is to ensure that the material has a consistent thickness during the processing, improving the quality of the product. Through the thickness limitation of the storage unit, the material can maintain a uniform thickness during cutting and processing, avoiding product quality problems caused by inconsistent thickness.

[0126] Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0127] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of the flows and / or blocks in the flowchart and / or block diagram can also be implemented. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0128] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing devices to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including instruction means, and the instruction means implements the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0129] These computer program instructions can also be loaded onto a computer or other programmable data processing devices, so that a series of operation steps are executed on the computer or other programmable devices to generate a computer-implemented process. Therefore, the instructions executed on the computer or other programmable devices provide steps for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0130] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: still modifications or equivalent replacements can be made to the specific implementation manners of the present invention, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A method for making a genuine leather mold for shoes and bags, characterized in that: include: Acquire data of the material to be processed, generate a 2D model, and preprocess the 2D model; Extracting component contours of the preprocessed 2D model; Designing a sheet die according to the component profile; The mold design parameters are converted into cutting data, and the mold is processed based on the cutting data.

2. The method for making leather molds for shoes and bags according to claim 1, characterized in that: Extracting the component contour of the preprocessed 2D model includes: Based on the data of the material to be processed, determining the initial thickness of the 2D model; Expand the contour circumference according to the initial thickness of the 2D model; In combination with the initial thickness of the 2D model, the mold thickness and mold slope of the mold are defined; The depth of the cutting area is indicated by several colored lines.

3. The method for making leather molds for shoes and bags according to claim 2, characterized in that: When defining the mold thickness and mold slope of the mold, it includes: The mold thickness of the mold is formed by combining the width of the multilayer structure; In the multi-layer structure, the thickness difference of each layer of material forms the mold slope of the mold.

4. The method for making leather molds for shoes and bags according to claim 3, characterized in that: The mold design includes the following steps: Generate a sheet material slope based on the material data to be processed, wherein the material data to be processed includes the edge width, middle thickness and edge thickness of the component sheet; Combined with image processing, the visual effect of sheet material slope is simulated through layered thickness difference.

5. The method for making leather molds for shoes and bags according to claim 4, characterized in that: When generating sheet slopes, include: Obtain the standard thickness of sheet material process based on material thickness and mold depth; Obtaining the standard width of the component sheet process based on the mold sheet width; Get part material thickness based on mold depth; Get the depth of the corresponding position of the mold based on the thickness of the component edge.

6. The method for making leather molds for shoes and bags according to claim 5, characterized in that: When converting mold design parameters into cutting data, it includes: Calculate the mold depth: D m ≥H m ; Where D m is the mold depth, H m is the material thickness; Calculate the standard thickness of the sheet process: H8=H m -D m ; Among them, H8 is the material thickness H m With mold depth D m The difference between Calculate the standard width of the component sheet process: W m =W8; Where W m is the width of the mold sheet, and W8 is the standard width of the component sheet process; Calculate the material thickness of the component: H b =D b ; Among them, H b is the thickness of the edge of the component, D b is the depth of the corresponding position of the mold; Check that the cutting path is continuous and has no overlaps or breakpoints; Check that the cutting depth is consistent.

7. The method for making leather molds for shoes and bags according to claim 6, characterized in that: When converting mold design parameters into cutting data, it also includes: Generate a cutting path data file, wherein the cutting path data file includes the coordinates of each cutting point, the cutting direction and the cutting order; Generate depth data files for each cutting position; Generate cutting speed and cutting pressure data files.

8. The method for making leather molds for shoes and bags according to claim 7, characterized in that: When mold processing is performed based on the cutting data, it includes: Pre-treating the mold to be processed, wherein the pre-treatment includes surface treatment and burr removal; Calibrate the processing equipment, wherein the calibration includes positioning accuracy and repeatability; According to the cutting data, preliminary processing is carried out to remove excess material; The contour after preliminary processing is finely processed and the edge of the contour is trimmed to clean the residual PVC strips.

9. A leather mold for shoes and bags, made by the method for making a leather mold for shoes and bags as claimed in any one of claims 1 to 8, characterized in that: include: A mold body, the contour of which matches the data of the material to be processed; An edge sealing unit, arranged on the contour of the mold body, for defining a contour of the material; A storage unit is arranged on the mold body and is located in the edge sealing unit, and is used for storing the material and limiting its thickness.

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