WO2017045102A1

WO2017045102A1 - Three-dimensional size measurement system for internal volume of shoe body

Info

Publication number: WO2017045102A1
Application number: PCT/CN2015/089524
Authority: WO
Inventors: 马柯佛·杰可福; 巴·可恰哇马尔斯; 沙德·亚可福
Original assignee: 欧利速精密工业股份有限公司
Priority date: 2015-09-14
Filing date: 2015-09-14
Publication date: 2017-03-23

Abstract

A three-dimensional size measurement system for an internal volume of a shoe body, comprising a sock-type shoe tree (10), a plurality of metal detection elements (20) arranged on a surface of the sock-type shoe tree, an X-ray scanning apparatus (30) and a clamping rotatory apparatus (40). The sock-type shoe tree made of an elastic material is placed and expanded in an internal volume of a shoe body to be measured, so that the metal detection elements, arranged on the surface of the sock-type shoe tree and used to define a three-dimensional internal face position of the shoe body to be measured, abut against an internal face of the shoe body to be measured; the clamping rotatory apparatus is utilized to place the shoe body to be measured into a scanning chamber of the X-ray scanning apparatus; after X-ray scanning, a series of X-ray images are output to a computer for analysis; and triangulation is performed on a position of each metal detection element in each X-ray image, so as to obtain position information about each metal detection element in a three-dimensional internal face. The distance between selected metal detection elements is thereby measured, and obtained is a three-dimensional size measurement result of an internal volume of a fully automatic shoe body with an accurate measurement structure.

Description

Three-dimensional size measuring system for the internal volume of the shoe body

Technical field

The invention relates to the measurement of a shoe body, in particular to a three-dimensional size measuring system for the internal volume of a shoe body.

Background technique

The manufacture of shoes is based on industry-standard sizes used to define the dimensions of shoe components, including uppers, soles, etc., which are also further applied to footwear. For example, a shoe last for supporting an upper when making a shoe.

However, due to the difference in the manufacturing process of the shoe materials and different footwear, there is an error between the finished shoe and the standard size. Such errors will increase the error range after multiple accumulations, so that the size level of the finished shoe (size level) Different from the standard sizes originally used to make shoes, these finished products that do not meet the standard size and requirements will become defective.

Currently, means for measuring the internal volumetric dimensions of a shoe body include mechanically measuring a very small number of dimensions through mechanical gages, for example measuring only the length of the interior of the shoe (eg, patent pre-CN201149478Y, US6192593) US Pat. No. 7,734,691), or a small number of dimensions for specific parts of the inner surface of the shoe (for example, patents US6975232, US20120316827, US20140096406). It is worth noting that the US patent application US8763261 has disclosed a device for measuring the internal fit of footwear (APPARATUS FOR MEASURING THE INTERNAL FIT OF FOOTWEAR), although it discloses a multi-point detector on the surface of the last The measurement method, but the device is quite expensive and uncomfortable to use.

In summary, the measuring device proposed in the foregoing patent is not measured by simulating the condition and shape of the shoe body worn on the foot. In other words, the measured shoe body size state and the actual wearing state on the foot are There is a difference, therefore, the measurement accuracy of the aforementioned patents is insufficient; further, the measurement method of the internal dimensions of the shoe body requires manual operation and is time consuming, and therefore, the aforementioned measurement means are not widely used and Very rarely used by footwear manufacturing companies.

Summary of the invention

The technical problem to be solved by the present invention is to provide a three-dimensional size measuring system for the internal volume of a shoe body, which is mainly an automatic and digital system in the case where the condition and shape of the shoe body to be tested is equivalent to being worn on the foot. Multi-point measurement of the internal volumetric dimensions of the shoe body is used to overcome the aforementioned lack of known measuring means.

In order to solve the above technical problem, the present invention provides a three-dimensional size measuring system for measuring the internal volume of a shoe body for measuring an internal volumetric size of a shoe body to be tested; wherein the system comprises: a sock-type last, made of an elastic material The inflatable structure is formed and placed in the inner volume of the shoe body to be tested, the shoe last has an input port for inputting fluid to expand, and a plurality of metal detecting elements are disposed on the sock shoe last a plurality of pre-defined positioning points for measuring the size of the internal volume of the shoe body to be tested; an X-ray scanning device comprising a scanning room and at least one X-ray camera disposed in the scanning chamber, the scanning room An opening for inserting the shoe body to be tested and the inside thereof for the X-ray camera to take an X-ray image of the shoe body to be tested and the shoe-like shoe last; a clamping rotation device comprising a rotating shaft and a clamp disposed at one end thereof, the rotating shaft is coupled to a power source and driven to drive the clamp to linearly shift or rotate; thereby, the shoe last is inflated to the inside of the shoe body to be tested metal detecting The component is completely attached against the inner surface of the shoe to be tested, so that the shoe body to be tested and the inner sock shoe last are clamped in the scanning chamber to perform a known and precise linear displacement or rotation angle for scanning by the X-ray camera. The X-ray image of the shoe body to be tested is outputted to a computer in multiple viewing angles, and the computer performs triangulation on the position of each metal detecting component of each X-ray image to obtain the inner surface of each shoe to be tested. The position information is used to calculate the distance between the metal detecting elements, thereby obtaining the three-dimensional size of the inner surface of the shoe to be tested.

Further, the hosiery last is made of an elastic material selected from rubber or latex to provide good ductility when the hosiery last is filled and expanded to achieve the purpose of affixing to the inner surface of the shoe to be tested.

Further, the shoe body to be tested comprises a large bottom and an upper, and the metal detecting component is a sheet-like structure with uniform thickness and flatness, so as to be easily adhered to the surface of the sock shoe by the adhesive, and in the socks After being expanded, the shoe last is clearly and clearly attached to the inner surface of the shoe to be tested for scanning by X-ray camera; the metal detecting element can be shaped to include squares, triangles, and/or circles, which are easily distinguishable. The shape is such that the metal detecting element is disposed on the positioning point of the specific area of the surface of the sock shoe last according to its shape, so that the X-ray image can distinguish different metals through the geometric shapes. Detection component. Wherein, the plurality of metal detecting elements are defined as a first detecting element, a second detecting element and a third detecting element, and the first detecting element is disposed on a toe and a heel of the sock type shoe corresponding to the shoe body to be tested At the positioning point, the second detecting element is disposed on the positioning point of the sock-type last corresponding to both sides of the upper, and the third detecting element is disposed on the middle of the upper of the upper and the upper of the upper The location of the adjacent perimeter of the junction of the upper and the outsole.

Further, the fluid for filling the sock last may be a liquid or a gas; wherein, when filling the gas, the input port of the sock-type last is connected with an air compressor having a control valve, so that the air compressor passes Control of the control valve directs air into the sock shoe last until the sock shoe lasts to fully adhere to the inner face of the shoe body to be tested.

Further, the X-ray scanning device may be an X-ray camera and a clamping rotation device, and the clamping rotation device is used to drive the displacement or rotation of the shoe body to be tested to achieve a plurality of viewing angles of the shoe body and the shoe last. The X-ray image may be a plurality of X-ray cameras combined with the clamping and rotating device, and the plurality of X-ray cameras are used to scan the shoe body and the shoe-type shoe last from different angles, and the operation of the clamping rotating device is reduced. Efficacy, which greatly shortens the time required to complete a full 2D photography, and achieves the technical effect of increasing the rate.

The present invention has been described with reference to the preferred embodiments of the present invention and the accompanying drawings.

DRAWINGS

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

1 is a schematic structural view of a side view (top left), a bottom view (bottom left), and a rear view (top right) of a sock-type last with a metal detecting element;

2 is a schematic structural view of a shoe-type shoe last placed inside a shoe body to be tested;

3 is a schematic view showing the structure of a shoe body to be tested in which a shoe-type shoe last is mounted to an X-ray chamber;

4 is a schematic structural view of the shoe body of FIG. 3 rotated by 90 degrees;

FIG. 5 is a schematic diagram showing the structure of the X-ray two-dimensional image after the position information of the shoe body to be tested is moved back to the X-ray room and fed back to a computer and the image information obtained by the X-ray camera;

Fig. 6 is a schematic view showing the structure of a shoe body to be photographed at different angles by two X-ray cameras.

The reference numerals are as follows:

Shoe body to be tested A outsole A1

Upper A2

Socks shoe last 10 input port 11

Air compressor 12 control valve 121

Metal detecting element 20 first sensing element 20A

Second sensing element 20B third sensing element 20C

X-ray scanning device 30 scanning room 31

X-ray camera 32 opening 311

Clamping rotating device 40 rotating shaft 41

Clamp 42 power source 43

Motor 431 actuator 432

Encoder 433 computer 50

detailed description

Referring to Figures 1 through 6, an embodiment of a three-dimensional size measuring system for the internal volume of a shoe body of the present invention will be described. The three-dimensional size measuring system of the inner volume of the shoe body of the present invention is for measuring the internal volumetric size of a shoe body A to be tested. As shown in FIG. 2, the shoe body A to be tested includes a large bottom A1 and an upper A2. As shown in FIG. 3, the system includes a sock shoe last 10, a plurality of metal detecting elements 20, an X-ray scanning device 30, and a clamping rotating device 40.

As shown in FIG. 1 and FIG. 2, the sock-type last 10 is an inflatable structure made of an elastic material and is placed in the inner volume of the shoe body A to be tested. The shoe-type last 10 has an input port 11 for The fluid is inflated by the input fluid; in the present embodiment, the sock-type last 10 has a shape similar to a sock and is made of an elastic material selected from rubber or latex; the sock last 10 may be liquid or gas Filling and expanding, as shown in FIG. 3, the embodiment of the present invention is exemplified by air filling, which connects the input port 11 with an air compressor 12, and the air compressor 12 has a control valve 121 for controlling the air compressor. 12, the air is input into the sock-type last 10, which is used for inflating to make the sock-type last 10 expand and fill the internal volume of the shoe body A to be tested, and at the same time, the shoe body A to be tested is opened to its maximum volume, so as to simulate the wearing of the shoe body. The state and shape on the foot is used to measure the most similar situation in which the shoe body is worn on the foot.

As shown in FIG. 1 and FIG. 2, the plurality of metal detecting elements 20 are disposed on the table of the shoe-type last 10 The plurality of positioning points defined in advance are used to measure the size of the internal volume of the shoe body A to be tested. In the present embodiment, the metal detecting element 20 is a sheet-like structure having a uniform thickness and a flat shape, and is shaped to include a square, a triangle, and a circular geometric shape, so that the metal detecting element 20 is disposed in the sock-style last according to its shape. 10 The location of the specific area of the surface is located. In the present embodiment, the metal detecting element 20 is adhered to the surface of the sock-type last 10 by a bonding agent.

As shown in FIG. 1, these metal detecting elements 20 are defined as a first detecting element 20A, a second detecting element 20B and a third detecting element 20C, and the first detecting element 20A is provided in the sock-type last 10 corresponding to the shoe body A to be tested. The second detecting element 20B is disposed on the positioning point of the sock-type last 10 corresponding to both sides of the upper A2, and the third detecting element 20C is disposed in the sock type. The last 10 corresponds to an intermediate ridgeline of the upper A2 and an adjacent peripheral edge of the upper A2 to the joint of the outsole A1, whereby the metal detecting element disposed at a specific region of the sock last 10 can be passed. The shape of 20 further measures the dimensional dimension of the internal volume of the shoe body A to be tested.

As shown in FIG. 3 and FIG. 6, the X-ray scanning device 30 includes a scanning chamber 31 and at least one X-ray camera 32 disposed in the scanning chamber 31. The scanning chamber 31 is provided with an opening 311 for being placed in the scanning chamber 31. The shoe body A and its inner sock-type last 10 are used by the X-ray camera 32 to take an X-ray cross-sectional image of the shoe body A to be tested and the shoe-type shoe last 10. An embodiment in which only a single X-ray camera 32 is provided is shown in FIG. 3, and FIG. 6 shows an embodiment in which a two X-ray camera 32 is provided.

As shown in FIG. 3, FIG. 4 and FIG. 6, the clamping and rotating device 40 includes a rotating shaft 41 and a clamp 42 disposed at one end thereof. The rotating shaft 41 is coupled to a power source 43 and drives the driving fixture 42 to be linear. Displacement or rotation angle.

The rotating shaft 41 of the clamping and rotating device 40 of the present invention is a screw structure. In the embodiment of the single X-ray camera 32 of FIGS. 3 to 5, the power source 43 includes a motor 431 and an actuator 432. The motor 431 The rotating shaft 41 is disposed for driving the rotating shaft 41 to simultaneously drive the linear displacement of the clamp 42. The actuator 432 is disposed opposite the clamp 42 at both ends of the rotating shaft 41 for driving the rotating shaft 41 to simultaneously rotate the clamp 42; Therefore, the shoe body A to be tested and its inner sock shoe last 10 are moved and moved in or out of the scanning chamber 31 by the clamping rotation device 40 after being stably clamped by the rotating shaft 41. When the shoe last 10 and the shoe body A to be tested are displaced by the rotating shaft 41, the X-ray camera 32 is used to measure the S-shaped image of the angle A of the shoe body A, and each cross-section is the shoe body A to be tested. Under the X-ray camera, it is captured by a linear displacement of the rotating shaft 41 at a precisely known angle. When the shoe body A to be tested is sufficiently moved under the X-ray camera 32, as shown in FIG. 5, these cuts are shown. The face image is transmitted to a computer 50, and the computer 50 processes and outputs a complete set of two-dimensional X-ray images.

Next, the shoe body A to be tested is rotated relative to the X-ray camera 32 by the actuator 432, and the aforementioned scanning/photography process is repeated to obtain the shoe body A to be tested and its shoe-like shoe last 10 The second set of X-ray images. The computer 50 can apply the existing calculation method, and accurately calculate each group of metal detecting elements 20 according to the shape of the metal detecting element 20 and the approximate expected position (the first sensing element 20A, the second sensing element 20B, the first The position of the three sensing elements 20C).

In the present invention, as shown in FIG. 4, the shoe body A to be tested is rotated relative to the X-ray camera 32 by being clamped by a clamp 42 coupled to the rotating shaft 41, wherein the present invention employs triangulation ( Trigonometric Measurements), the position of the metal detecting element 20 is calculated, which is based on the axis 41 of the precise known position, thereby calculating the three-dimensional position of each metal detecting element 20. Therefore, the inner dimension and size of the shoe body A to be tested can be reconstructed by selecting more predetermined metal detector elements 20 and calculating the distance between the metal detector elements 20.

In addition, in the embodiment of the two X-ray camera 32 of FIG. 6, the two X-ray cameras 32 are disposed in the scanning chamber 31 at a precisely defined angle, and the power source 43 includes a motor 431 and an encoding. The motor 431 is disposed for rotating the shaft 41 for driving the rotating shaft 41 to simultaneously linearly displace the clamp 42. The encoder 433 is configured to drive the rotating shaft 41 to simultaneously rotate the clamp 42. Thereby, when the two X-ray cameras 32 are placed inside the shoe body A to be tested, the shoe body A to be tested is driven by the motor 41 and the encoder 433 to control the shoe body A to be tested. Linear displacement; in this embodiment, two sets of X-ray images will be generated and simultaneously transmitted to the computer 50 for analysis, and the time is reduced by reducing the number of times the rotating shaft 41 rotates the held shoe body A to be tested, thereby saving time Technical efficacy.

The main embodiment of the three-dimensional size measuring system for the internal volume of the shoe body of the present invention has been described above, and the measuring method of the system will be described below.

The three-dimensional size measuring system for the internal volume of the shoe body of the present invention is mainly achieved by placing a sock-type last 10 made of an elastic material into the inside of the shoe body A to be tested, and by means of airing or other filling means, the sock shoes are made. The crucible 10 is inflated and filled in the internal volume of the shoe body A to be tested, while the shoe body A to be tested is opened to simulate the state and shape in which the shoe body is worn on the foot.

When the sock-type last 10 is fully inflated in the shoe body A to be tested, the metal detecting elements 20 will be attached against a plurality of positioning points on the inner surface of the shoe body A to be tested. Then, the shoe body A to be tested, which is provided with the sock-type last 10, is displaced into the scanning chamber 31 of the X-ray scanning device 30 by the clamping rotation device 40; when the shoe body A to be tested is When moving within the scanning chamber 31, the position of the shoe body A to be tested will be taken by the X-ray camera 32 to establish its X-ray image. In the present embodiment, the supply company of the X-ray system includes Secu-Scan China (www.xraysecuscan.com) or MCD Electronics Co. China.

After the previous shoe body A to be tested passes the scanning, the shoe body A to be tested is clamped by the clamping rotating device 40 and rotated at a precisely known angle to obtain an X-ray image of another angle. In the present embodiment, the X-ray camera 32 is calibrated in advance for a precise known photographic subject such that the size measured on the X-ray image is the same as the actual size of the shoe body A to be tested. Thereby, the metal detecting element 20 provided on the surface of the sock-type last 10 can be visualized on each X-ray image by using the perspective capability of the X-ray, and the position of the metal detecting element 20 on the X-ray image can be measured thereby. . By taking the X-ray image of the shoe body A to be tested at a plurality of known rotation angles by shooting, the position of the same metal detecting component 20 in the different X-ray images can be calculated by the above-described triangulation method, and each metal detecting component 20 is calculated. The measurement position in the 3D calibration volume. This is a well-defined calculation method, in short, which uses the explicit geometric relationship between the positions of the metal detecting elements 20 on a plurality of two-dimensional projections to calculate the metal detecting element 20 in the shoe body A to be tested. The corresponding fixed point position in the internal volume.

Finally, the coordinates of the two specific metal detecting elements 20 obtained by the calculation are subtracted, and the true distance between the two metal detecting elements 20 is calculated, thereby obtaining the inner surface size of the shoe body A to be tested. Among them, by arranging the metal detecting elements 20 of different shapes at specific positions, it is helpful to discriminate the position of the metal detecting elements 20 of the same shape from the different two-dimensional images on the shoe body A to be tested.

In the present invention, as shown in FIG. 5, the computer 50 and the X-ray camera 32, the control valve 121 of the air compressor 12, and the motor 431 and the actuator 432 of the clamp rotating device 40 are electrically charged. The invention is characterized in that the X-ray image after the photographic scanning of the X-ray camera 32 is received and processed, and the control valve 121, the motor 431 and the actuator 432 are electrically controlled. Further, in the embodiment of FIG. 6, the motor 431 and the encoder 433 of the clamping rotating device 40 are also electrically connected to the computer 50 and electrically controlled.

In summary, the present invention utilizes the three-dimensional size measuring system of the internal volume of the aforementioned shoe body. The sock-type last 10 made of elastic material is measured by simulating the state in which the shoe body A to be tested is actually worn on the foot, and the fully automated X-ray scanning device 30, the clamping rotating device 40 and the computer 50 are used to greatly improve the measurement. The accuracy of the three-dimensional size inside the shoe body has the technical effects of improving measurement efficiency and reducing the defect rate.

The present invention has been described in detail by way of specific examples, but these are not intended to limit the invention. Many modifications and improvements can be made by those skilled in the art without departing from the principles of the invention.

Claims

A three-dimensional size measuring system for measuring the internal volume of a shoe body for measuring an internal volume size of a shoe body to be tested; wherein the system comprises:

a sock-type last, an inflatable structure made of an elastic material and placed in the inner volume of the shoe body to be tested, the shoe-type last has an input port for inputting fluid to expand;

a plurality of metal detecting elements are disposed on a plurality of pre-defined positioning points on the surface of the sock-type last, and the positioning points are used for measuring the size of the internal volume of the shoe body to be tested;

An X-ray scanning device includes a scanning room and at least one X-ray camera disposed in the scanning chamber, the scanning room is provided with an opening for placing the shoe body to be tested and a sock shoe last therein for X-ray camera X-ray cross-sectional image of the shoe body to be tested and the shoe-type shoe last;

a clamping rotating device comprising a rotating shaft and a clamp disposed at one end thereof, the rotating shaft being coupled to a power source and driving to drive the clamp to linearly shift or rotate;

The sock-type last is inflated inside the body to be tested until a plurality of metal detecting elements are completely attached to the inner surface of the shoe to be tested, so that the shoe body to be tested and the inner sock shoe last are clamped in the scanning room Performing a known and precise linear displacement or rotation angle for the X-ray camera to scan the X-ray image of the shoe body to be tested at multiple viewing angles and output it to a computer, allowing the computer to pass each metal detection component for each X-ray image The position is triangulated, and the position information of each metal detecting element corresponding to the inner surface of the shoe to be tested is obtained to calculate the distance between the metal detecting elements, thereby obtaining the three-dimensional size of the inner surface of the shoe to be tested.
A three-dimensional size measuring system for the internal volume of a shoe body according to claim 1, wherein the shoe-type last is made of an elastic material selected from rubber or latex.
A three-dimensional measuring system for the internal volume of a shoe body according to claim 1, wherein said metal detecting member is a sheet-like structure having a uniform thickness and a flat shape, and is shaped to include square, triangular and circular geometric shapes. The metal detecting element is disposed on the positioning point of the specific area of the surface of the sock shoe last according to its shape.
The three-dimensional size measuring system for the inner volume of the shoe body according to claim 1, wherein the shoe body to be tested comprises a large bottom and an upper, and the plurality of metal detecting elements are defined as the first detecting element and the second a detecting element and a third detecting element, wherein the first detecting element is disposed on a positioning point of the toe-type last corresponding to the toe and the heel of the shoe body to be tested, and the second detecting element is disposed on the sock-type last Corresponding to the positioning points at both sides of the upper, the third detecting element is disposed on the pair of socks It should be on the middle edge of the upper and the positioning point of the adjacent circumference at the junction of the upper and the outsole.
The three-dimensional size measuring system for the internal volume of a shoe body according to claim 4, wherein the first detecting element, the second detecting element and the third detecting element are sheet-like structures having a uniform thickness and a flat shape, and are respectively formed Distinct geometry for easy identification.
The three-dimensional size measuring system for the internal volume of a shoe body according to claim 1, wherein the metal detecting component is adhered to the surface of the shoe-shaped last by a bonding agent.
The three-dimensional size measuring system for the internal volume of the shoe body according to claim 1, wherein the input port of the shoe-type last is connected to an air compressor, and the air compressor has a control valve for controlling the air. The press feeds air into the sock shoe last.
The three-dimensional measuring system for the internal volume of the shoe body according to claim 1, wherein the rotating shaft of the clamping rotating device is a screw structure, the power source comprises a motor and an actuator, and the motor is a rotating shaft. The driving device is configured to drive the rotating shaft to simultaneously drive the linear displacement of the clamp, and the actuator is disposed opposite the clamp shaft at both ends of the rotating shaft for driving the rotating shaft to simultaneously rotate the clamp.
A three-dimensional size measuring system for the internal volume of a shoe body according to claim 1, wherein said X-ray scanning device comprises two X-ray cameras arranged in the scanning chamber, said two X-ray cameras being precisely defined angles. Separately placed in the scanning room.
The three-dimensional measuring system for the internal volume of the shoe body according to claim 9, wherein the rotating shaft of the clamping rotating device is a screw structure, the power source comprises a motor and an encoder, and the motor is a rotating shaft. The driving device is configured to drive the rotating shaft to simultaneously drive the linear displacement of the clamp, and the encoder is used to drive the rotating shaft to simultaneously drive the rotating of the clamp.