High-low foot shoe preparation method capable of increasing and decreasing sole thickness through customized 3D printing

Abstract

The invention relates to a high-low foot shoe preparation method capable of increasing and decreasing sole thickness through customized 3D printing, which is characterized by comprising the following steps: (1) pathological analysis; the conditions of high and low feet of the patient are analyzed by professionals; (2) sole scanning and data acquisition: acquiring sole model data of shoes frequently worn by a patient by using a three-dimensional scanner; (3) data importing: importing sole model data into 3D modeling, and carrying out personalized customization; (4) personalized design: in the 3D modeling process, adjusting the thickness, hardness and shape of a sole adjusting block to adapt to the foot shape characteristics and high and low foot conditions of different patients, and generating a sole adjusting block model perfectly matched with the feet of the patients; and (5) 3D printing manufacturing is conducted, specifically, the shoe sole adjusting block model is guided into a bi-material 3D printer, the bi-material 3D printer selects bi-materials matched with the foot of the patient to conduct printing according to a model preset by 3D printing software, and a complete shoe sole adjusting block is formed.

Description

Technical Field

[0001] The present invention relates to the technical field of insole preparation, and in particular to a method for preparing high-low shoes by customized 3D printing to increase or decrease the thickness of the sole. Background Art

[0002] 3D printing is a type of rapid prototyping technology, also known as additive manufacturing. It is a technology that uses digital model files as the basis and uses adhesive materials such as powdered metal or plastic to construct objects by printing layer by layer. It has the properties of high adaptability and rapid customization and is widely used in the processing field.

[0003] At the same time, leg length discrepancy (LLD), also known as "high and low feet", is a very common orthopedic disease. High and low feet not only directly affect the development of gait, but also the long-term unbalanced walking style is prone to multiple complications, such as scoliosis, pelvic tilt, low back pain, excessive wear of joints, asymmetric development of musculoskeletal muscles and bones of the affected limbs, etc. There are many reasons for this phenomenon, which is often seen in children when their bones are in the development stage, and the development of both feet is caused by inflammation, tumors, congenital, trauma, deformities of other parts, etc. In addition, high and low feet have a greater impact on a person mentally. Because they are different from the people around them, people with high and low feet may be excluded by them. Sometimes the people around them may not have the malice they imagine, but because of their own defects, they fall into self-denial and blame, and have a great sense of vigilance against the people around them. In the long run, they may lead to autism and it is difficult to integrate into society. Therefore, technicians in this field have invented high and low shoes to enable patients with high and low feet to walk normally like normal people.

[0004] Currently, there is still a lack of a method for preparing high-low shoes that can be customized and quickly prepared in the art. Summary of the invention

[0005] In view of the above-mentioned technical problems in the prior art, the present invention provides a method for preparing high-low shoes by customized 3D printing to increase or decrease the thickness of the sole. The method adopts 3D printing technology combined with dual-material technology to quickly manufacture customized adjustment blocks suitable for patients, which are then nested and pasted to the soles of patients for fixation through adhesives to complete the production of high-low shoes, so as to compensate for the height difference of the feet, improve the comfort of wearing shoes for patients with high and low feet and solve the problem of walking stability.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A method for preparing high-low shoes with customized 3D printing to increase or decrease the thickness of the sole, characterized in that it comprises the following steps:

[0008] (1) Pathological analysis: Professionals analyze the patient's uneven feet and draw preliminary conclusions; (2) Sole scanning and data acquisition: Use a three-dimensional scanner to obtain the sole model data of the patient's commonly worn shoes; (3) Data import: Import the above sole model data into 3D modeling for personalized customization; (4) Personalized design: During the 3D modeling process, modular design is used to add fixed function modules to adjust the thickness, hardness and shape of the sole adjustment block to adapt to the foot characteristics and uneven feet of different patients, and generate a sole adjustment block model that perfectly matches the patient's foot; (5) 3D printing and manufacturing: Import the sole adjustment block model into a dual-material 3D printer, and the dual-material 3D printer selects the dual material that is compatible with the patient's foot and slices and prints it according to the slicing path preset by the 3D printing software to form a complete sole adjustment block; (6) Customized assembly: Use adhesive to nest and paste the printed sole adjustment block to the patient's sole for fixation to complete the production of uneven feet shoes.

[0009] As a further elaboration of the above technical solution:

[0010] In the above technical solution, in step (2), the sole model data includes foot length parameters and foot width parameters.

[0011] In the above technical solution, in step (5), the double materials can be selected from elastic material TPU and high-strength nylon.

[0012] In the above technical solution, in step (5), the elastic material TPU is 80A-95A TPU material.

[0013] In the above technical solution, in step (5), the dual-material 3D printer can fill the slice path of the cube and the spiral 24-hedron according to the slice planning of the 3D printing software, and the dual-material 3D printer then stacks the materials layer by layer according to the preset model to form a complete sole adjustment block.

[0014] In the above technical solution, in step (6), the adhesive is preferably AB polyurethane adhesive, and is not limited to other adhesives.

[0015] Beneficial effects of the present invention:

[0016] The present invention adopts 3D printing technology combined with dual-material technology to quickly manufacture customized adjustment blocks suitable for patients. Specifically, a patient's sole model is obtained through a 3D scanner to achieve modular design, which is convenient and fast; the sole adjustment block is customized using 3D printing technology to improve production efficiency and personalized customization capabilities; TPU and nylon materials are used to ensure the durability and comfort of the sole adjustment block; a special dual-material printer is used to achieve rapid customization of the sole adjustment block to meet the needs of different patients. On the basis of the existing technology, the comfort and adaptability of the sole adjustment block are further improved, so that it can better meet the personalized needs of patients with high and low feet, while improving production efficiency and cost-effectiveness, and providing patients with personalized customized sole adjustment blocks faster. The present invention combines intelligent manufacturing technology with comfort performance to achieve rapid production of dual-material customized sole adjustment blocks, which are then nested and pasted to the patient's sole with an adhesive for fixation, completing the production of high and low foot shoes to compensate for the height difference of the feet, improve the comfort of wearing shoes for patients with high and low feet, and solve the problem of walking stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the workflow of the present invention. DETAILED DESCRIPTION

[0018] The present invention is described in detail below in conjunction with specific embodiments and drawings.

[0019] The present embodiment provides a customized 3D printing method for preparing high-low toe shoes with increased or decreased sole thickness, which includes the following steps: (1) pathological analysis: professionals analyze the high-low toe condition of the patient and obtain preliminary conclusion data; (2) sole scanning and data acquisition: using a three-dimensional scanner to obtain the sole model data of the patient's commonly worn shoes; (3) data import: importing the above-mentioned sole model data into 3D modeling for personalized customization; (4) personalized design: in the 3D modeling process, modular design is used to add fixed function modules, adjust the thickness, hardness and shape of the sole adjustment block to adapt to the foot characteristics and high-low toe conditions of different patients, and generate a sole adjustment block model that perfectly matches the patient's foot; (5) 3D printing and manufacturing: importing the sole adjustment block model into a dual-material 3D printer, and the dual-material 3D printer selects dual materials that are compatible with the patient's foot and performs slicing and printing according to the slicing path preset by the 3D printing software to form a complete sole adjustment block; (6) customized assembly: the printed sole adjustment block is nested and pasted to the patient's sole using an adhesive for fixation to complete the production of high-low toe shoes.

[0020] As a further improvement of the present invention, in step (2), the above-mentioned sole model data includes foot length parameters and foot width parameters.

[0021] As a further improvement of the present invention, in step (5), the above-mentioned double materials can be selected from elastic material TPU and high-strength nylon.

[0022] As a further improvement of the present invention, in step (5), the elastic material TPU is 80A-95ATPU material.

[0023] As a further improvement of the present invention, in step (5), the dual-material 3D printer can fill the slice path of the cube and the spiral 24-hedron according to the slice planning of the 3D printing software, and the dual-material 3D printer then stacks the materials layer by layer according to the preset model to form a complete sole adjustment block.

[0024] As a further improvement of the present invention, in step (6), the adhesive is preferably AB polyurethane adhesive, and is not limited to other adhesives.

[0025] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A method for preparing high-low shoes with customized 3D printing to increase or decrease the thickness of the sole, characterized in that: It includes the following steps: (1) Pathological analysis: Professionals analyze the uneven feet of patients and draw preliminary conclusions; (2) Sole scanning and data acquisition: Use a 3D scanner to obtain the sole model data of the shoes that patients often wear; (3) Data import: Import the above sole model data into 3D modeling for personalized customization; (4) Personalized design: In the 3D modeling process, modular design is used to add fixed function modules to adjust the thickness, hardness and shape of the sole adjustment block to adapt to the foot characteristics and uneven feet of different patients, and generate a sole adjustment block model that perfectly matches the patient's foot; (5) 3D printing and manufacturing: Import the sole adjustment block model into a dual-material 3D printer, and the dual-material 3D printer selects the dual material that is compatible with the patient's foot and slices and prints it according to the slicing path preset by the 3D printing software to form a complete sole adjustment block; (6) Customized assembly: The printed sole adjustment block is nested and glued to the sole of the patient using adhesive to fix it, thus completing the production of high-low shoes.

2. The method for preparing high-low shoes with customized 3D printing to increase or decrease the thickness of the sole according to claim 1, characterized in that: In step (2), the sole model data includes foot length parameters and foot width parameters.

3. The method for preparing high-low shoes with customized 3D printing to increase or decrease the thickness of the sole according to claim 1, characterized in that: In step (5), the dual materials may be elastic material TPU and high-strength nylon.

4. The method for preparing high-low shoes with customized 3D printing to increase or decrease the thickness of the sole according to claim 3, characterized in that: In step (5), the elastic material TPU is 80A-95A TPU material.

5. The method for preparing high-low shoes with customized 3D printing to increase or decrease the thickness of the sole according to claim 1, characterized in that: In step (5), the dual-material 3D printer can fill the slice path of the cube and the spiral 24-hedron according to the slice planning of the 3D printing software. The dual-material 3D printer then stacks the materials layer by layer according to the preset model to form a complete sole adjustment block.

6. The method for preparing high-low shoes with customized 3D printing to increase or decrease the thickness of the sole according to claim 1, characterized in that: In step (6), the adhesive is AB polyurethane adhesive.

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