Efficient measuring and detecting method for shoe tree

Abstract

The invention relates to the technical field of shoe trees, and discloses an efficient measurement and detection method for a shoe tree, which comprises the following steps: scanning a mother shoe tree, carrying out 3D scanning modeling on the mother shoe tree, and generating an electronic shoe tree of the mother shoe tree; manufacturing a key part measuring scale according to the mother shoe tree so as to determine the point position of the key part at the shoe tree bottom of the to-be-detected shoe tree; determining a section position corresponding to the key part of the electronic shoe tree, generating a section shape at the section position, and manufacturing a clamping plate according to the section shape; drawing the size of a key part on the shoe last bottom of the to-be-detected shoe last through a key part measuring scale; and detecting the positions corresponding to the key parts of the to-be-detected shoe tree by using the clamping plates, and judging whether the to-be-detected shoe tree is standard or not. According to the invention, the detection time and detection tools are reduced, the links in the detection process are saved, the requirement on operators is low, the size is accurate, the measurement speed is high, and the operation standardization is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of shoe lasts, and in particular to an efficient measurement and detection method for shoe lasts. Background Art

[0002] The accuracy of bulk shoe lasts plays an extremely important role in the shoemaking process. Its importance is mainly reflected in the following aspects: 1. Ensure the comfort and fit of the shoes: The shoe last is the molding mold of the shoe, and its shape and size directly determine the internal space structure and wearing comfort of the shoe. Accurate shoe last design can ensure that the shoe fits the foot shape perfectly, provide sufficient support and wrapping, reduce the friction and pressure of the foot during walking, running and other activities, thereby improving the comfort and fit of wearing. 2. Affect the appearance and quality of the shoe: The accuracy of the shoe last also directly affects the appearance and overall quality of the shoe. A precise shoe last can ensure that the shoe maintains a consistent shape and size during the molding process, making the lines of the shoe smooth and the outline clear. This not only improves the beauty of the shoe, but also ensures the quality and consistency of the shoe, making it easier for consumers to identify high-quality products when purchasing. 3. Improve production efficiency and reduce costs: In the shoemaking process, accurate shoe lasts can greatly improve production efficiency. Since the shoe last is the molding mold of the shoe, the accurate shoe last can ensure the stability and consistency of the shoe during the manufacturing process, and reduce the scrap rate and rework rate. This not only reduces the production cost, but also improves the production efficiency, so that shoemaking companies can better meet the market demand. 4. Meet the needs of personalized customization: With the increasing demand of consumers for personalized customization, accurate shoe last design has become more and more important. Through accurate shoe last design, shoemaking companies can customize shoes that meet the needs of consumers according to their personalized needs such as foot shape and wearing habits. This not only improves consumer satisfaction and loyalty, but also brings more business opportunities and profit margins to shoemaking companies. 5. Promote technological progress in the shoemaking industry: Accurate shoe last design requires the support of advanced measurement technology, digital technology and manufacturing technology. Therefore, promoting the improvement of shoe last accuracy has also promoted the progress and development of related technologies in the shoemaking industry. These technological advances have not only improved the quality and comfort of shoes, but also promoted the digital transformation and intelligent upgrading of the shoemaking industry.

[0003] In summary, the accuracy of bulk shoe lasts plays an extremely important role in the shoemaking process. It not only affects the comfort, appearance and quality of the shoes, but also affects production efficiency, cost and personalized customization needs. Therefore, shoemaking companies should attach great importance to the precision design of shoe lasts, and continuously improve their own technical level and manufacturing capabilities to meet consumer needs and market changes. At present, when testing a large number of bulk shoe lasts, operators need to be familiar with equipment, testing methods and data processing. The training time is long, the testing process is complicated, the testing time is long, and the operation is prone to errors, which will also affect the measurement accuracy.

[0004] Therefore, it is necessary to provide an efficient measurement and detection method for shoe lasts to solve the current problems of low efficiency and low accuracy when detecting a large number of bulk shoe lasts. Summary of the invention

[0005] In view of this, the present invention proposes an efficient measurement and detection method for shoe lasts, aiming to solve the current problems of low efficiency and low precision when detecting a large number of bulk shoe lasts.

[0006] The present invention proposes an efficient measurement and detection method for a shoe last, comprising:

[0007] Scanning the master last, performing 3D scanning modeling on the master last, and generating an electronic shoe last of the master last;

[0008] Making a measuring ruler for key parts according to the master last;

[0009] Determine the cross-sectional position corresponding to the key part of the electronic shoe last, generate a cross-sectional shape at the cross-sectional position, and manufacture a card board according to the cross-sectional shape;

[0010] Using the key part measuring ruler, draw the size of the key part on the sole of the shoe last to be tested;

[0011] Each of the clamping plates is used to detect the positions corresponding to the key parts of the shoe last to be detected, so as to determine whether the shoe last to be detected is standard.

[0012] Furthermore, the scanning of the master last, performing 3D scanning modeling on the master last, and generating an electronic shoe last of the master last includes:

[0013] Cleaning the surface of the mother last, fixing the mother last on the scanner platform, and making the mother last stable;

[0014] Scanning the master last to gradually cover the entire surface of the master last;

[0015] Transmitting the scanned data to a computer to generate 3D point cloud data of the master last;

[0016] The point cloud data is optimized using modeling software to remove noise and repair defects, and converted into a complete 3D electronic shoe last model.

[0017] Furthermore, the key parts include:

[0018] Heel center position, instep circumference control point, waist circumference control point, first metatarsophalangeal control point, fifth metatarsophalangeal control point, toe circumference control point and toe endpoint.

[0019] Furthermore, when making a key part measuring ruler according to the master last, it includes:

[0020] Determine the shoe last bottom plate size in GB / T 3294--2018 shoe last testing standard;

[0021] The key part measuring ruler is manufactured in combination with the dimensions of the mother last and the last bottom plate.

[0022] Furthermore, the determining of the cross-sectional position corresponding to the key part of the electronic shoe last, generating the cross-sectional shape at the cross-sectional position, and manufacturing the pallet according to the cross-sectional shape includes:

[0023] Determining the cross-sectional shape of the key part of the electronic shoe last according to the size of the key part;

[0024] Determining the midline cross-sectional shape and the tube opening cross-sectional shape of the electronic shoe last;

[0025] The cross-sectional shape of the key parts, the centerline cross-sectional shape and the barrel mouth cross-sectional shape are exported as DXF files, and the cross-sectional shape of the key parts, the centerline cross-sectional shape and the barrel mouth cross-sectional shape are made into a detection card board in 2D grid software, and the DXF file is output to a cutting board through a cutting machine.

[0026] Furthermore, the card board includes:

[0027] Heel center position pallet, instep circumference pallet, waist circumference pallet, first metatarsophalangeal circumference pallet, fifth metatarsophalangeal circumference pallet, toe circumference pallet, toe endpoint pallet, midline pallet and tube mouth pallet.

[0028] Furthermore, after drawing the dimensions of the key parts on the sole of the shoe last to be tested by the key parts measuring ruler, the method further comprises:

[0029] The back center line, the rear arc center line and the tube opening center line are drawn on the shoe last to be tested.

[0030] Furthermore, the steps of respectively detecting the positions corresponding to the key parts of the shoe last to be detected by each of the card plates to determine whether the shoe last to be detected is standard include:

[0031] The heel center position card plate, the instep circumference card plate, the waist circumference card plate, the first metatarsophalangeal circumference card plate, the fifth metatarsophalangeal circumference card plate, the toe circumference card plate, the toe end point card plate, the midline card plate and the tube mouth card plate are respectively placed at the positions corresponding to the shoe last to be tested. If the card plates all match the shoe last to be tested, the standard of the shoe last to be tested is determined;

[0032] If the card plate does not match the shoe last to be tested, it is determined that the shoe last to be tested is not standard.

[0033] Compared with the prior art, the beneficial effect of the present invention is that the present invention first forms a digital 3D shoe last, i.e., an electronic shoe last, after scanning the master last through 3D, and then forms the cross-section of each part of the shoe last through software processing, and generates 2D plane lines for the cross-section of the key parts, and then generates the key part card plate from the plane lines. The dimensions of the key parts of the bottom plate are unified on the measuring ruler of the key parts of the bottom plate. During measurement, the key parts are determined by comparing the measuring ruler of the key parts of the bottom plate to the bottom of the shoe last to be tested, and then the key part card plate is compared to the shoe last to be tested to see if there are gaps, deformation of the card plate and other problems. The dimensions of the shoe last to be tested are compared by the important dimension card plate of the master last, and the curvature is restored to ensure the accuracy of the detection dimension and the convenience of operation. The method of the present invention can reduce the detection time and detection tools, save links in the detection process, have low requirements on operators, accurate dimensions, fast measurement speed, and improve operation standardization. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0035] Figure 1 A flow chart of an efficient measurement and detection method for a shoe last provided by an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of an electronic shoe last provided in an embodiment of the present invention;

[0037] Figure 3 GB / T 3294--2018 shoe last testing standard diagram provided for the embodiment of the present invention;

[0038] Figure 4 A key part measuring ruler made according to the dimensions of the mother last and the last bottom plate provided in an embodiment of the present invention;

[0039] Figure 5 An instep circumference pallet provided in an embodiment of the present invention;

[0040] Figure 6The fifth metatarsophalangeal circumference clamping plate provided in the embodiment of the present invention;

[0041] Figure 7 A first metatarsophalangeal circumference clamping plate provided in an embodiment of the present invention;

[0042] Figure 8 A toe clip provided in an embodiment of the present invention;

[0043] Fig. 9 A heel-center position clamping plate provided in an embodiment of the present invention;

[0044] Fig.10 A toe end point card provided by an embodiment of the present invention;

[0045] Fig.11 A waist circumference cardboard provided in an embodiment of the present invention;

[0046] Fig.12 A barrel mouth clamp provided in an embodiment of the present invention;

[0047] Fig.13 A centerline card provided in an embodiment of the present invention;

[0048] Fig.14 A schematic diagram of using a key part measuring ruler to draw the dimensions of key parts on the sole of a shoe last to be tested provided by an embodiment of the present invention;

[0049] Fig.15 A schematic diagram of a shoe last to be tested by a toe end point card board according to an embodiment of the present invention;

[0050] Fig.16 A schematic diagram of a toe circumference clamp plate detecting a shoe last to be detected provided by an embodiment of the present invention;

[0051] Fig.17 A schematic diagram of a first metatarsophalangeal circumference card board detecting a shoe last to be detected provided by an embodiment of the present invention;

[0052] Fig.18 A schematic diagram of a fifth metatarsophalangeal circumference cardboard detecting a shoe last to be detected provided by an embodiment of the present invention;

[0053] Fig.19 A schematic diagram of a shoe last to be tested using an instep circumference cardboard provided in an embodiment of the present invention;

[0054] Fig. 20 A schematic diagram of a waist circumference card board detecting a shoe last to be detected provided by an embodiment of the present invention;

[0055] Fig.21 A schematic diagram of a shoe last to be tested by a heel-center position card plate according to an embodiment of the present invention;

[0056] Fig. 22A schematic diagram of a shoe last to be tested using a centerline pallet provided in an embodiment of the present invention;

[0057] Fig.23 Schematic diagram of detecting a shoe last to be detected by a tube mouth clamp provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0058] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0059] The accuracy of bulk shoe lasts is crucial in the shoemaking process. It directly affects the comfort, appearance and quality of the shoes. It is also closely related to production efficiency, cost control and personalized customization needs. Therefore, shoemaking companies should attach great importance to the precision design of shoe lasts, and continuously improve their technical level and manufacturing capabilities to meet consumer demand and market changes. However, in the inspection process of a large number of bulk shoe lasts, operators need to be familiar with the equipment, inspection methods and data processing procedures, which leads to long training time, complex inspection links, long inspection time and easy errors in operation, thus affecting the measurement accuracy.

[0060] Therefore, there is an urgent need for an efficient shoe last measurement and testing method to solve the current problems of low efficiency and insufficient precision when testing a large number of bulk shoe lasts.

[0061] The following embodiments of the present invention are described with a shoe last of size 230 as the standard.

[0062] In some embodiments of the present application, see Figure 1 As shown, this embodiment provides an efficient measurement and detection method for a shoe last, comprising the following steps:

[0063] S100, scanning the master last, performing 3D scanning modeling on the master last, and generating an electronic shoe last of the master last;

[0064] S200, make measuring rulers for key parts according to the mother last;

[0065] S300, determining the cross-sectional position corresponding to the key part of the electronic shoe last, generating a cross-sectional shape at the cross-sectional position, and manufacturing a pallet according to the cross-sectional shape;

[0066] S400, using a key part measuring ruler to draw the dimensions of the key parts on the sole of the shoe last to be tested;

[0067] S500, inspecting the positions corresponding to the key parts of the shoe last to be inspected by each pallet respectively, and determining whether the shoe last to be inspected is standard.

[0068] It is understandable that the present invention first forms a digital 3D shoe last, i.e., an electronic shoe last, after scanning the master last through 3D, and then forms the cross-sections of each part of the shoe last through software processing, and generates 2D plane lines for the cross-sections of the key parts, and then generates the key part card plate from the plane lines. The dimensions of the key parts of the bottom plate are unified on the measuring ruler of the key parts of the bottom plate. During measurement, the key parts are determined by comparing the measuring ruler of the key parts of the bottom plate to the bottom of the shoe last to be tested, and then the key part card plate is compared to the shoe last to be tested to see if there are gaps, deformation of the card plate and other problems. The dimensions of the shoe last to be tested are compared by the important dimension card plate of the master last, and the curvature is restored to ensure the accuracy of the detection dimension and the convenience of operation. The method of the present invention can reduce the detection time and detection tools, save links in the detection process, have low requirements on operators, accurate dimensions, fast measurement speed, and improve operation standardization.

[0069] In some embodiments of the present application, scanning the master last, performing 3D scanning modeling on the master last, and generating an electronic shoe last of the master last includes:

[0070] Clean the surface of the mother last and fix it on the scanner platform to make it stable;

[0071] Scan the mother last and gradually cover the entire surface of the mother last;

[0072] The scanned data is transferred to the computer to generate 3D point cloud data of the mother last;

[0073] The point cloud data is optimized using modeling software to remove noise and repair defects, and then converted into a complete 3D electronic shoe last model.

[0074] It is understandable that by cleaning the surface of the master last and fixing it on the scanner platform, the stability of the master last during the scanning process is ensured to avoid data distortion caused by jitter. 3D scanning technology is used to gradually cover the entire surface of the master last to generate point cloud data, and the point cloud data is optimized with modeling software to remove noise and repair defects, and finally a high-precision electronic shoe last model is generated. The acquisition accuracy of the master last data is significantly improved, providing a reliable technical basis for subsequent measurement and testing. In addition, the generation of electronic shoe lasts can also be widely used in shoe last design, improvement and digital archiving, providing support for intelligent shoemaking.

[0075] Specifically, Figure 2 This is a schematic diagram of a complete 3D electronic shoe last model.

[0076] In some embodiments of the present application, the key parts include:

[0077] Heel center position, instep circumference control point, waist circumference control point, first metatarsophalangeal control point, fifth metatarsophalangeal control point, toe circumference control point and toe endpoint.

[0078] It is understandable that the key parts, including the heel center position, the instep circumference control point, the waist circumference control point, the first metatarsophalangeal control point, the fifth metatarsophalangeal control point, the toe circumference control point and the toe end point, are important parameters that affect the comfort and functionality of the shoe last. By identifying the key parts, the method can accurately detect whether these areas meet the design standards, thereby ensuring the fit and comfort of the shoe last when worn. Especially for high-end customized shoes that require high precision, the precise measurement of these key parts directly affects the market competitiveness and user satisfaction of the product.

[0079] In some embodiments of the present application, when making a key part measuring ruler according to a master last, the method includes:

[0080] Determine the shoe last bottom plate size in GB / T 3294--2018 shoe last testing standard;

[0081] See also Figure 4 As shown in the figure, a measuring ruler for key parts is made by combining the dimensions of the mother last and the last bottom plate.

[0082] It is understandable that according to the GB / T 3294--2018 shoe last inspection standard and the actual size of the master last, the key parts measuring ruler can accurately mark the position of the key parts on the sole of the shoe last. This process can provide a clear benchmark in subsequent inspections and avoid errors caused by inaccurate marking of key points. The use of key parts measuring rulers simplifies the operating procedures of inspectors, while improving the consistency and repeatability of inspections, and provides a guarantee for accurate measurement in large-scale shoe last inspections.

[0083] Specifically, Figure 3 This is the GB / T 3294--2018 shoe last testing standard diagram.

[0084] In some embodiments of the present application, determining the cross-sectional position corresponding to the key part of the electronic shoe last, generating the cross-sectional shape at the cross-sectional position, and making the card board according to the cross-sectional shape includes:

[0085] Determine the cross-sectional shape of the key parts of the electronic shoe last according to the size of the key parts;

[0086] Determine the midline cross-sectional shape and the tube cross-sectional shape of the electronic shoe last;

[0087] The cross-sectional shapes of key parts, centerline and barrel mouth are exported as DXF files, and the cross-sectional shapes of key parts, centerline and barrel mouth are made into inspection card boards in 2D grid software. The DXF files are output to cutting boards through cutting machines.

[0088] It is understandable that by determining the cross-sectional position and shape of the key parts of the electronic shoe last, the shape of the midline cross-sectional shape and the shape of the tube mouth cross-sectional shape, exporting it as a DXF file and using 2D grid software to make a test card, it is ensured that the card can accurately match the key parts, midline parts and tube mouth parts of the shoe last. The production of the card not only standardizes the inspection process, but also significantly improves the inspection efficiency. The process of cutting the rubber board ensures the consistency and durability of the card board and reduces the errors caused by human factors. At the same time, the use of card board detection can quickly determine the deviation area of ​​the shoe last, providing a clear reference for subsequent adjustments.

[0089] See also Figure 5-Figure 13 As shown, in some embodiments of the present application, the card board includes:

[0090] Heel center position pallet, instep circumference pallet, waist circumference pallet, first metatarsophalangeal circumference pallet, fifth metatarsophalangeal circumference pallet, toe circumference pallet, toe endpoint pallet, midline pallet and tube mouth pallet.

[0091] It is understandable that the pallet includes detection tools for multiple parts, including the heel center position pallet, the instep circumference pallet, the waist circumference pallet, the first metatarsophalangeal circumference pallet, the fifth metatarsophalangeal circumference pallet, the toe circumference pallet, the toe endpoint pallet, the midline pallet and the tube mouth pallet, covering all key areas of the shoe last. This diverse pallet design can fully cover various indicators of shoe last detection, ensuring that each key part can be accurately evaluated. In this way, the deficiencies of the shoe last in the design or manufacturing process can be effectively discovered, and targeted optimization suggestions can be provided for the production process. In addition, the pallet detection method is intuitive and easy to operate, which reduces the technical threshold of operators and helps to quickly achieve batch detection.

[0092] Fig.14 A schematic diagram of drawing the dimensions of key parts on the sole of a shoe last to be tested using a key part measuring ruler provided in an embodiment of the present invention.

[0093] In some embodiments of the present application, after drawing the dimensions of the key parts on the sole of the shoe last to be tested by using a key part measuring ruler, the following steps are included:

[0094] Draw the back center line, rear arc center line and tube opening center line on the shoe last to be tested.

[0095] It is understandable that by using the key parts measuring ruler to draw the dimensions of the key parts on the sole of the shoe last to be tested, and marking the back center line, the rear arc center line and the tube mouth center line, the key reference points of the shoe last can be clearly and intuitively displayed. These marks provide an accurate alignment basis for subsequent card board testing, ensuring the rigor and reliability of the testing process. In addition, this step can also help operators quickly locate the key areas of the shoe last, reduce the complexity of the testing process, and further improve the testing efficiency and accuracy.

[0096] See also Figure 15-Figure 23 As shown, in some embodiments of the present application, each card plate is used to detect the positions corresponding to the key parts of the shoe last to be tested, and when judging whether the shoe last to be tested is standard, it includes:

[0097] Place the heel center position card plate, the instep circumference card plate, the waist circumference card plate, the first metatarsophalangeal circumference card plate, the fifth metatarsophalangeal circumference card plate, the toe circumference card plate, the toe end point card plate, the midline card plate and the tube mouth card plate at the corresponding positions of the shoe last to be tested respectively. If the card plates all match the shoe last to be tested, the standard of the shoe last to be tested is determined;

[0098] If there is a mismatch between the card plate and the shoe last to be tested, it is determined that the shoe last to be tested is not standard.

[0099] It is understandable that by aligning the different parts of the card plate with the corresponding positions of the shoe last to be tested and testing the degree of fit, it is possible to quickly determine whether the shoe last meets the standards. If the card plate and the shoe last are completely matched, it means that the design and manufacture of the shoe last meet the expected standards; if they are not matched, the problem area can be accurately located, which is convenient for subsequent adjustments. This method greatly reduces the possibility of measurement errors through the physical matching of the card plate, while avoiding subjective judgment in the data analysis process, ensuring the objectivity and consistency of the test results.

[0100] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt 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.) containing computer-usable program codes.

[0101] The present application is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0102] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0103] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. An efficient measurement and detection method for shoe lasts, characterized in that: include: Scanning the master last, performing 3D scanning modeling on the master last, and generating an electronic shoe last of the master last; Making a measuring ruler for key parts according to the master last; Determine the cross-sectional position corresponding to the key part of the electronic shoe last, generate a cross-sectional shape at the cross-sectional position, and manufacture a card board according to the cross-sectional shape; Using the key part measuring ruler, draw the size of the key part on the sole of the shoe last to be tested; Each of the clamping plates is used to detect the positions corresponding to the key parts of the shoe last to be detected, so as to determine whether the shoe last to be detected is standard.

2. The efficient measurement and detection method for shoe lasts according to claim 1, characterized in that: The scanning of the master last, performing 3D scanning modeling on the master last, and generating an electronic shoe last of the master last comprises: Cleaning the surface of the mother last, fixing the mother last on the scanner platform, and making the mother last stable; Scanning the master last to gradually cover the entire surface of the master last; Transmitting the scanned data to a computer to generate 3D point cloud data of the master last; The point cloud data is optimized using modeling software to remove noise and repair defects, and converted into a complete 3D electronic shoe last model.

3. The efficient measurement and detection method for shoe lasts according to claim 2, characterized in that: The key parts include: Heel center position, instep circumference control point, waist circumference control point, first metatarsophalangeal control point, fifth metatarsophalangeal control point, toe circumference control point and toe endpoint.

4. The efficient measurement and detection method for shoe lasts according to claim 3, characterized in that: When making a key part measuring ruler according to the master last, the method includes: Determine the shoe last bottom plate size in GB / T 3294--2018 shoe last testing standard; The key part measuring ruler is manufactured in combination with the dimensions of the mother last and the last bottom plate.

5. The efficient measurement and detection method for shoe lasts according to claim 4, characterized in that: The step of determining the cross-sectional position corresponding to the key part of the electronic shoe last, generating the cross-sectional shape at the cross-sectional position, and manufacturing the card board according to the cross-sectional shape includes: Determining the cross-sectional shape of the key part of the electronic shoe last according to the size of the key part; Determining the midline cross-sectional shape and the tube opening cross-sectional shape of the electronic shoe last; The cross-sectional shape of the key parts, the centerline cross-sectional shape and the barrel mouth cross-sectional shape are exported as DXF files, and the cross-sectional shape of the key parts, the centerline cross-sectional shape and the barrel mouth cross-sectional shape are made into a detection card board in 2D grid software, and the DXF file is output to a cutting board through a cutting machine.

6. The efficient measurement and detection method for shoe lasts according to claim 5, characterized in that: The card board comprises: Heel center position pallet, instep circumference pallet, waist circumference pallet, first metatarsophalangeal circumference pallet, fifth metatarsophalangeal circumference pallet, toe circumference pallet, toe endpoint pallet, midline pallet and tube mouth pallet.

7. The efficient measurement and detection method for shoe lasts according to claim 6, characterized in that: After drawing the size of the key part on the sole of the shoe last to be tested by the key part measuring ruler, the method includes: The back center line, the rear arc center line and the tube opening center line are drawn on the shoe last to be tested.

8. The efficient measurement and detection method for shoe lasts according to claim 7, characterized in that: The method of detecting the positions corresponding to the key parts of the shoe last to be detected by each of the card plates to determine whether the shoe last to be detected is standard includes: The heel center position card plate, the instep circumference card plate, the waist circumference card plate, the first metatarsophalangeal circumference card plate, the fifth metatarsophalangeal circumference card plate, the toe circumference card plate, the toe end point card plate, the midline card plate and the tube mouth card plate are respectively placed at the positions corresponding to the shoe last to be tested. If the card plates all match the shoe last to be tested, the standard of the shoe last to be tested is determined; If the card plate does not match the shoe last to be tested, it is determined that the shoe last to be tested is not standard.

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