CN215455807U - Thermoplastic insole mold and thermoplastic insole - Google Patents

Abstract

The utility model discloses a thermoplastic insole mould and a thermoplastic insole, wherein the thermoplastic insole mould comprises a main body with the same shape as the insole, the edge of the main body is provided with a vertically raised rib, an insole forming cavity is formed between the rib and the surface of the main body, and the main body consists of a half sole part, a transverse arch part, an arch outer part, an arch inner part, a cup heel part and a heel part which are mutually clamped and assembled. The utility model divides the thermoplastic insole mould into six parts, so that the six parts with proper thickness can be selected to be assembled according to individual requirements, and the thermoplastic insole is molded by utilizing the insole molding cavity, thereby realizing the scheme of molding the planar thermoplastic insole into individual molding required by the individual.

Description

Thermoplastic insole mold and thermoplastic insole

Technical Field

The utility model relates to the technical field of thermoplastic insole manufacturing, in particular to a thermoplastic insole mold and a thermoplastic insole.

Background

The foot is an important component of a human body motion system, foot diseases and injuries become problems troubling people, and the rectification insole can effectively treat and prevent the foot diseases and the injury risks and becomes a main means of physical rectification.

At present, insoles on the market are mostly manufactured by molds, but the feet of each person are different, and the mold processing is difficult to customize for individual individuality. The existing customized insole mainly comprises two modes of traditional plaster model making and computer aided design and making. Traditional plaster cast fabrication is by hand taking out the foot cast using plaster bandages, over-molding, shaping, high temperature board or EVA heat forming, and finally polishing the finished product. However, the traditional method has long manufacturing time and much dust in the operation environment, and needs a great deal of experience; the other method is a computer aided design and manufacturing method, namely, the plastic cement is carved into a block shape through material reduction manufacturing, so that the processing waste is more, the noise is high, and the dust is more; the two processing methods are generally single material processing, and the hardness of each position of the insole is difficult to adjust according to different symptoms and manufacturing requirements of customers.

The human foot is composed of bones, ligaments, muscles, and tendons. The feet are the major tasks of supporting and balancing the body while a person stands, walks and exercises. The insole is the main part of the shoe-insole, the insole is in close contact with the foot, and the main functions are as follows: improving the environment in the shoe, stabilizing the support, reducing the load on the sole of the foot, fixing and protecting, lengthening the lower limbs, preventing or correcting deformities, even improving the function of the limbs, and the like. With the improvement of living standard and the increasing attention to self health and sports requirements, there are many people such as children, old people, pregnant women, athletes, diabetics, flat feet, and patients with inner and outer turnover feet, which have special individuation requirements on the insole.

At present, relatively mature design schemes for personal foot data acquisition and 3D printing insoles exist in the market, but no production scheme compatible with personalized design and traditional materials exists in production and manufacturing; the existing 3D printing technology has the problems of long printing time, non-durable materials, troublesome manual veneering and the like, and the thermoplastic insole is generally planar in shape and single in shape, and can completely fit the shape of a foot of a person, but has no orthopedic effect.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a thermoplastic insole mould and a manufacturing method of a prefabricated thermoplastic insole, wherein the thermoplastic insole mould is divided into six parts, so that the six parts with proper thicknesses can be selected for assembly according to individual requirements, and the thermoplastic insole is molded by utilizing an insole molding cavity, thereby realizing the scheme of molding a planar thermoplastic insole into individual molding required by an individual.

In order to solve the technical problem, the utility model provides a thermoplastic insole mould which comprises a main body with the same shape as an insole, wherein the shape of the surface of the main body is matched with that of a sole of a foot, a vertically raised rib is arranged at the edge of the main body, an insole forming cavity is formed between the rib and the surface of the main body, and the main body consists of a half sole part, a transverse arch part, an arch outer part, an arch inner part, a cup heel part and a heel part which are mutually clamped and assembled.

Furthermore, the height of the retaining side is 3-5 mm.

Further, the thicknesses of the edge joints of the half sole part, the transverse arch part, the outer arch part, the inner arch part, the cup heel part and the heel part are the same.

Furthermore, the edge splicing parts of the half sole part, the transverse arch part, the outer arch part, the inner arch part, the cup heel part and the heel part are connected by adopting a dovetail joint structure.

Furthermore, a plurality of dovetails are arranged at the edge splicing positions of the half sole part, the transverse arch part, the outer arch part, the inner arch part, the cup heel part and the heel part.

Further, the main body is made of PC, ABS, PEEk, PA6 or PA 12.

Furthermore, the half sole part, the transverse arch part, the outer arch part, the inner arch part, the cup heel part and the heel part are integrally formed in a 3D printing mode.

The utility model also provides a thermoplastic insole which comprises a fabric layer, an elastic layer, a thermoplastic plate and a supporting bottom layer which are sequentially stacked from top to bottom, wherein the fabric layer, the elastic layer, the thermoplastic plate and the supporting bottom layer are all the outline structures of the human sole; the thermoplastic plate is composed of a half sole part, a transverse arch part, an arch outer part, an arch inner part, a cup heel part and a heel part which are mutually clamped and assembled.

Further, the thermoplastic plate is planar.

Furthermore, the edge splicing parts of the half sole part, the transverse arch part, the outer arch part, the inner arch part, the cup heel part and the heel part are connected by adopting a dovetail joint structure.

Furthermore, a plurality of dovetails are arranged at the edge splicing positions of the half sole part, the transverse arch part, the outer arch part, the inner arch part, the cup heel part and the heel part.

The utility model also provides a manufacturing method of the prefabricated thermoplastic insole, which is manufactured by adopting the thermoplastic insole mould as any one of the above, and is characterized by comprising the following steps:

s1, acquiring three-dimensional data of the individual foot through a three-dimensional scanner, and determining a three-dimensional curved surface of the sole;

s2, acquiring pressure data of the individual foot through a pressure tester, and determining the foot shape according to the three-dimensional curved surface of the sole obtained by combining the pressure data;

s3, determining and selecting a half sole part, a transverse arch part, an arch outer part, an arch inner part, a cup heel part and a heel part with proper thickness according to the foot shape, and then assembling the selected parts by clamping to form a thermoplastic insole mould;

s4, placing the prefabricated planar thermoplastic insole into an insole forming cavity in a thermoplastic insole mould;

and S5, heating to soften the thermoplastic insole and attach the thermoplastic insole to the surface in the insole forming cavity for molding, and then cooling and shaping to obtain the finished insole.

Further, step S1 is preceded by the following steps:

and S0, respectively printing a half sole part, a transverse arch part, an arch outer part, an arch inner part, a cup heel part and a heel part with corresponding proper thicknesses according to different foot types by adopting a 3D printing mode.

Further, in step S3, the half sole portion, the transverse arch portion, the outer arch portion, the inner arch portion, the cup heel portion and the heel portion with appropriate thickness may be printed out according to the foot shape and by a 3D printing method, and then the thermoplastic insole mold is formed by engaging and assembling the respective portions.

Further, in step S5, the semi-finished product of the thermoplastic insole is heated and shaped by hot pressing or vacuum forming.

The utility model has the following beneficial effects:

the utility model divides the thermoplastic insole mould into six parts, and the six parts with different heights can be assembled together according to actual needs, so that the surface shape of the mould forms a concave-convex curved surface shape matched with the shape of the sole, and an insole forming cavity is formed on the surface by using the flanges at the edges, thus the planar thermoplastic insole can be curved surface-formed by using the insole forming cavity and using a heating and shaping mode, and the scheme of forming the planar thermoplastic insole into the required personalized shape is realized; in addition, the thermoplastic insole die is formed by clamping and assembling six parts to form a modular design, and the six parts have different prefabricated heights, so that each part with proper thickness can be selected according to the curved surface and the foot shape of the sole of a foot, and then the parts are assembled into the thermoplastic insole die suitable for individuals, thereby realizing rapid customization; the thermoplastic insole die can be repeatedly used for many times by utilizing the modularized design, and dies with different local sizes can be manufactured by replacing parts in a certain area or a plurality of areas, so that thermoplastic insoles suitable for personal orthopedic conditions can be manufactured at any time, orthopedic effects on different disease foot types are realized, a special integrated die does not need to be customized according to feet of everyone, and the manufacturing cost of materials and insoles can be greatly reduced.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the principles of the utility model:

FIG. 1 is a schematic view of a thermoplastic insole mold according to example 1;

FIG. 2 is a schematic view of a front sole portion in embodiment 1;

FIG. 3 is a schematic view of a transverse arch portion in example 1;

FIG. 4 is a schematic view of the lateral portion of the arch of the foot in example 1;

FIG. 5 is a schematic view of the medial aspect of the arch of the foot in example 1;

FIG. 6 is a schematic view of a heel part of the cup in embodiment 1;

FIG. 7 is a schematic view of the heel portion of example 1;

FIG. 8 is a schematic view of a thermoplastic sheet in example 2.

Detailed Description

For a fuller understanding of the technical aspects of the present invention, reference should be made to the following detailed description taken together with the accompanying drawings; it should be noted that, if "first" or "second" is described in the text, it is used to distinguish different components, and the like, and does not represent the order of precedence, and does not limit "first" and "second" to be different types.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1-7, the thermoplastic insole mold of the embodiment comprises a main body 1 having the same shape as an insole, wherein the shape of the surface of the main body 1 is matched with the shape of a sole of a foot, that is, the concave-convex shape of each part of the surface of the main body 1 is matched with the three-dimensional curved shape of the sole of the foot, the bottom surface of the main body 1 is a plane, the edge of the main body 1 is provided with a vertically convex rib 10 for forming a surrounding limit area on the surface of the main body, so that a concave insole molding cavity 11 is formed between the rib 10 and the surface of the main body 1; the main body is also correspondingly divided into six mutually independent parts according to the division of six areas of the sole, namely a half sole, a transverse arch, an arch outer side, an arch inner side, a cup heel and a heel, namely the main body 1 consists of a half sole part 2, a transverse arch part 3, an arch outer side part 4, an arch inner side part 5, a cup heel part 6 and a heel part 7 which are mutually clamped and assembled; in the above, the thermoplastic insole mould is divided into six parts, the six parts with different heights can be assembled together according to actual needs, so that the surface shape of the mould forms a concave-convex curved surface shape matched with the shape of the sole of a foot, and an insole forming cavity is formed on the surface by using the flanges at the edges, so that the planar thermoplastic insole can be subjected to curved surface forming by using the insole forming cavity and a heating and shaping mode, and the scheme of forming the planar thermoplastic insole into the required personalized shape is realized; in addition, the thermoplastic insole die is formed by clamping and assembling six parts to form a modular design, and the six parts have different prefabricated heights, so that each part with proper thickness can be selected according to the curved surface and the foot shape of the sole of a foot, and then the parts are assembled into the thermoplastic insole die suitable for individuals, thereby realizing rapid customization; the thermoplastic insole die can be repeatedly used for many times by utilizing the modularized design, and dies with different local sizes can be manufactured by replacing parts in a certain area or a plurality of areas, so that thermoplastic insoles suitable for personal orthopedic conditions can be manufactured at any time, orthopedic effects on different disease foot types are realized, a special integrated die does not need to be customized according to feet of everyone, and the manufacturing cost of materials and insoles can be greatly reduced.

Specifically, a first through hole 21 for accommodating the transverse arch part 3 is arranged at the front end of the half sole part 2 in a penetrating mode, a first notch 22 and a second notch 23 for accommodating the outer arch part 4 and the inner arch part 5 are respectively arranged on two sides of the rear end of the half sole part, the cup heel part 6 is connected with the rear end of the half sole part 1, and a second through hole 61 for accommodating the heel part 7 is arranged in the cup heel part 6 in a penetrating mode, so that the six parts are divided and assembled according to sole functions and positions, a corresponding insole die can be rapidly assembled, and each part can be replaced according to the actual purpose of achieving rapid customization and repeated use.

Specifically, the height of the rib 10 is 3-5mm, and the thickness is selected according to the thickness of the prefabricated plane heat-shrinkable insole, so that the thickness is matched with the thickness of the plane heat-shrinkable insole.

In the embodiment, the thicknesses of the edge splicing parts among the half sole part 2, the transverse arch part 3, the arch outer part 4, the arch inner part 5, the cup heel part 6 and the heel part 7 are the same, so that continuous smooth surfaces without steps are formed at the joints, and the influence on the use comfort level caused by the step fall of the manufactured insole is avoided; specifically, the thickness of the edge of the first through hole 21 is the same as that of the edge of the transverse arch part 3, the thickness of the inner side edge of the outer arch part 4 is the same as that of the edge of the first notch 22, the thickness of the inner side edges of the outer arch part 4 and the inner arch part 5 is the same as that of the edge of the second notch 23, the thickness of the front end edge of the cup heel part 6 is the same as that of the rear end edge of the forefoot part 1, and the thickness of the edge of the second through hole 61 is the same as that of the edge of the heel part 7; in the above, the front sole part 1 is used as the main area, the size of the front sole part is relatively fixed, the edge sizes of other parts are manufactured according to the thickness of the corresponding splicing part in the front sole part, the height of the area except the edge in most parts can be manufactured according to actual needs, and various size specifications which are suitable for different foot shapes and have different heights can be manufactured, so that the various parts with different specifications can be quickly selected and spliced to meet the customized requirements.

Specifically, a plurality of dovetails 8 are arranged at the edge splicing positions of the half sole part 1, the transverse arch part 2, the arch outer part 3, the arch inner part 4, the cup heel part 5 and the heel part 6, namely, the parts are connected by adopting a dovetail joint structure, and the parts are assembled together by utilizing the dovetails matched in the splicing positions of the two adjacent parts in a clamping way.

Specifically, the main body 1 is made of various temperature-resistant 3D printing materials such as PC, ABS, Peek, PA6, and PA12, and may also be made of various metal materials that facilitate 3D printing.

Specifically, the half sole part 1, the transverse arch part 2, the outer arch part 3, the inner arch part 4, the cup heel part 5 and the heel part 6 are integrally formed in a 3D printing mode, and the 3D printing forming process can select SLA, FDM, SLM, LCD or DLP and the like.

In other embodiments, the edge joints of the half sole part, the transverse arch part, the outer arch part, the inner arch part, the cup heel part and the heel part can also adopt a boss or I-shaped connecting structure.

In other embodiments, the forefoot portion, the transverse arch portion, the outer portion of the arch, the inner portion of the arch, the cup heel portion, and the heel portion may be machined or formed integrally.

Example 2

The shoe pad of this embodiment is a planar shoe pad, and includes a fabric layer, an elastic layer, a thermoplastic plate 100 and a supporting bottom layer (not shown in the figure) stacked in sequence from top to bottom, where the fabric layer, the elastic layer, the thermoplastic plate and the supporting bottom layer are all the outline structures of human sole; as shown in fig. 8, the thermoplastic plate 100 is composed of a half sole portion 2, a transverse arch portion 3, an arch outer portion 4, an arch inner portion 5, a cup heel portion 6 and a heel portion 7 which are assembled by mutually engaging and divided into six corresponding portions as the mold described in the embodiment 1, so that the shaping operation can be better completed in the thermoplastic insole mold, and the both can be better adapted and processed.

Specifically, the thermoplastic sheet is planar.

Specifically, a first through hole 21 for accommodating the transverse arch part 3 is arranged at the front end of the half sole part 2 in a penetrating mode, a first notch and a second notch for accommodating the outer arch part 4 and the inner arch part 5 are respectively arranged on two sides of the rear end of the half sole part, the cup heel part 6 is connected with the rear end of the half sole part 1, and a second through hole for accommodating the heel part 7 is arranged in the cup heel part 6 in a penetrating mode, so that the six parts are divided and assembled according to sole functions and positions, and corresponding thermoplastic plates can be assembled quickly.

Specifically, a plurality of dovetails 8 are arranged at the edge splicing positions of the half sole part 1, the transverse arch part 2, the arch outer part 3, the arch inner part 4, the cup heel part 5 and the heel part 6, namely, the parts are connected by adopting a dovetail joint structure, and the parts are assembled together by utilizing the dovetails matched in the splicing positions of the two adjacent parts in a clamping way.

Specifically, the fabric layer is a polyester fiber layer.

Specifically, the elastic layer is an EVA layer.

Specifically, the thermoplastic sheet is a PVC thermoplastic sheet.

Specifically, the supporting bottom layer is a hot melt film.

Example 3

The method for manufacturing the prefabricated thermoplastic insole, which is shown in the embodiment, is manufactured by using the thermoplastic insole mold as shown in the embodiment 1, and comprises the following steps:

a. acquiring three-dimensional data of a person foot through a three-dimensional scanner, and determining a three-dimensional curved surface of a sole;

b. acquiring pressure data of an individual foot through a pressure tester, and determining the foot shape according to a three-dimensional curved surface of a sole obtained by combining the pressure data, namely obtaining the curved surface of the insole to be manufactured and the shape of the surface of a thermoplastic insole die through the data;

c. under the condition that six parts (namely six parts of a main body) with different specifications are manufactured in advance, a half sole part, a transverse arch part, an arch outer part, an arch inner part, a cup heel part and a heel part with proper thickness can be determined and selected according to the foot shape, then the selected parts are assembled by clamping to form a thermoplastic insole die, and the shape of the surface of the assembled thermoplastic insole die is matched with the foot shape, namely the surface is matched with a scanned three-dimensional curved surface of the sole;

d. placing the prefabricated planar thermoplastic insole in an insole forming cavity in a thermoplastic insole mould; in a specific embodiment, the thermoplastic insole adopts the thermoplastic insole as described in embodiment 2, and can also adopt the thermoplastic insole which is formed by integrating the thermoplastic plate commonly used in the prior art;

e. then the thermoplastic insole is softened by heating and is attached to the surface in the insole forming cavity for molding, and then the orthopedic insole finished product is prepared by cooling and molding.

In the step e, the semi-finished product of the thermoplastic insole is heated and molded by adopting a hot-pressing or plastic-sucking molding mode.

In other embodiments, step a further comprises the following steps:

a1, respectively printing a half sole part, a transverse arch part, an arch outer part, an arch inner part, a cup heel part and a heel part with corresponding proper thicknesses according to different foot types by adopting a 3D printing mode, so that each part comprises a plurality of modules with different specifications to form a model library; when the mold is used in the later step c, all parts with proper thickness are selected from the model library according to the foot shape to be assembled and spliced into the heat-shrinkable insole mold.

In other embodiments, in step c, when the parts for assembling and forming the mold are not manufactured in advance, the half sole part, the transverse arch part, the outer arch part, the inner arch part, the cup heel part and the heel part with appropriate thickness can be printed out according to the foot shape by a 3D printing mode, and then the parts are assembled by clamping to form the thermoplastic insole mold.

Specific production example 1 according to the above method:

when the foot shape is a patient with collapsed longitudinal arch and outward turned heel (namely flat foot), the surface curve of the inner part of the arch of foot can be enabled to be upwards tilted from inside to outside, so that the corresponding part of the insole manufactured by later-stage shaping is also upwards tilted, the inner longitudinal arch is supported by the tilted arch pad, the peripheral edge part of the cup heel part is higher than the heel part, the middle low edge of the heel part of the main body is formed into a shape with the upward tilted middle edge, the shape of the heel part of the insole manufactured by later-stage shaping is the same, and the tilted foot pad and the cup are utilized to contain the heel of the foot to play a role in stabilizing the heel bone; in the whole orthopedic process, a patient with flat feet (with collapsed longitudinal arch) can use a set of thermoplastic mold with own size, the height of the arch is different along with the change of the orthopedic of the arch, the condition of the current foot is detected and judged only at intervals, the inner part of the arch with proper size in the mold can be continuously replaced according to the change of the orthopedic, and then the thermoplastic insole with the height of the current arch size is manufactured.

According to the method, the sole is partitioned according to the curved surface of the sole, the foot types with different symptoms and the pressure distribution condition of each person, a half sole part, a transverse arch part, an outer arch part, an inner arch part, a cup heel part and a heel part with proper thickness are determined and selected according to the foot types, then the selected parts are assembled to form a thermoplastic insole mold through clamping, the surface in an insole molding cavity of the thermoplastic insole mold is matched with the corresponding individual foot type, the insole can be suitable for individual customization of various foot types, and the molds with different local sizes can be manufactured by replacing parts in a certain area or a plurality of areas, so that the thermoplastic insole suitable for the individual orthopedic condition can be manufactured at any time, and the orthopedic effect on different disease foot types is realized; in addition, a universal heat-shrinkable insole style can be designed aiming at common foot problems of different age groups and different sexes screened by big data, planar prefabricated thermoplastic insoles with different thermoplastic structures are combined, and finally the thermoplastic insoles are molded by heating, so that the orthopedic insoles compatible with the advantages of the traditional materials and the advantages of 3D customization can be rapidly produced.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.

Claims (10)

1. A thermoplastic insole mould is characterized by comprising a main body with the same shape as an insole, wherein the edge of the main body is provided with a vertically raised rib, an insole forming cavity is formed between the rib and the surface of the main body, and the main body consists of a half sole part, a transverse arch part, an arch outer part, an arch inner part, a cup heel part and a heel part which are mutually assembled in a clamping manner.

2. The thermoplastic insole mold of claim 1, wherein the height of the ribs is 3-5 mm.

3. The thermoplastic insole mold of claim 2, wherein the forefoot portion, the lateral arch portion, the medial arch portion, the cup heel portion and the heel portion are of the same thickness at the edge junction with one another.

4. The thermoplastic insole mold of claim 3, wherein the edge splices of the forefoot portion, the lateral arch portion, the medial arch portion, the cup heel portion and the heel portion are connected using a dovetail joint structure.

5. The thermoplastic insole mold of claim 4, wherein the edge joints of the forefoot portion, the transverse arch portion, the outer arch portion, the inner arch portion, the cup heel portion and the heel portion are provided with dovetails.

6. The thermoplastic insole mold of claim 1, wherein the body is made of PC, ABS, PEEK, PA6 or PA 12.

7. The thermoplastic insole mold according to any one of claims 1 to 6, wherein the forefoot portion, the lateral arch portion, the medial arch portion, the cup heel portion and the heel portion are integrally molded by means of 3D printing.

8. A thermoplastic insole is characterized by comprising a fabric layer, an elastic layer, a thermoplastic plate and a supporting bottom layer which are sequentially stacked from top to bottom, wherein the fabric layer, the elastic layer, the thermoplastic plate and the supporting bottom layer are all the outline structures of human soles; the thermoplastic plate is composed of a half sole part, a transverse arch part, an arch outer part, an arch inner part, a cup heel part and a heel part which are mutually clamped and assembled.

9. The thermoplastic insole of claim 8, wherein said thermoplastic sheet is planar.

10. The thermoplastic insole of claim 8, wherein the edge splices of the forefoot portion, the lateral arch portion, the medial arch portion, the cup heel portion and the heel portion are connected using a dovetail joint arrangement.

Images