CN113954283B - Foaming forming process of environment-friendly shoes - Google Patents
Foaming forming process of environment-friendly shoes Download PDFInfo
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- CN113954283B CN113954283B CN202111247945.XA CN202111247945A CN113954283B CN 113954283 B CN113954283 B CN 113954283B CN 202111247945 A CN202111247945 A CN 202111247945A CN 113954283 B CN113954283 B CN 113954283B
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- sole
- rubber
- foaming
- waist
- sheet section
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3403—Foaming under special conditions, e.g. in sub-atmospheric pressure, in or on a liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3415—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/50—Footwear, e.g. shoes or parts thereof
- B29L2031/507—Insoles
Abstract
The invention belongs to the technical field of foaming forming processes, and particularly relates to a foaming forming process of an environment-friendly shoe, which is based on sole foaming vulcanization forming equipment and comprises the following steps: s1: placing the foamed sheet into a lower die in sole foaming vulcanization molding equipment; s2: pressing the upper die onto the lower die, and vacuumizing a cavity between the upper die and the lower die; s3: helium is injected into a cavity between the upper die and the lower die, so that the pressure of the cavity between the upper die and the lower die is 8-12 MPa; s4, heating the upper die and the lower die to 160 ℃ at the temperature of 130-; the buffering air bag plays a buffering role preferentially, and then the second bulge part is contacted with the ground, so that the vibration of the foot waist socket is further reduced, and the foot waist socket is well protected.
Description
Technical Field
The invention relates to the technical field of foaming forming processes, in particular to a foaming forming process of environment-friendly shoes.
Background
Shoes are indispensable in daily life, and various kinds of shoes are full of precious in the market due to different effects and shapes, but no matter how the appearance of the shoes changes, the wearing comfort and the sufficient protection of feet are the most important. Modern people, whether for work or leisure life, often need to walk or stand for a long time, and the feet support the whole weight of the human body, and the feet are easy to feel ache and even generate plantar fasciitis when being used for a long time, so that a pair of shoes which are comfortable to wear by a user is the best auxiliary tool, and the comfort level of the sole as the only supporting part determines the comfort level of the shoes.
The conventional shoes are made of rubber and EVA, the soles made of rubber are soft, the soles made of EVA are hard, the advantages and the disadvantages of the soles made of rubber and EVA are obvious, the soles made of rubber are soft and comfortable, but the damping effect is poor, the common shoes have proper running purpose except for walking, and if the shoes are made of rubber completely, the damping and buffering effects on feet cannot be achieved; the steps of the existing foaming forming process are also complicated, and particularly for the shoe sole which is foamed for many times, the foaming operation needs to be carried out for many times, so the operation steps are very complicated;
in order to solve the above problems, the present application provides a foam forming process for an environment-friendly shoe.
Disclosure of Invention
Object of the invention
The invention aims to provide a foaming forming process of environment-friendly shoes, which is used for solving at least one of the background technologies.
(II) technical scheme
In order to solve the problems, the invention provides a foaming and forming process of environment-friendly shoes, which is based on sole foaming and vulcanizing forming equipment and comprises the following steps:
s1: placing the foamed sheet into a lower die in sole foaming and vulcanizing molding equipment;
s2: pressing the upper die onto the lower die, and vacuumizing a cavity between the upper die and the lower die;
s3: helium is injected into a cavity between the upper die and the lower die, so that the pressure of the cavity between the upper die and the lower die is 8-12 MPa;
s4, heating the upper mold and the lower mold to 160 ℃ at the temperature of 130-.
Preferably, the sole foaming and vulcanizing molding device comprises:
the device comprises an equipment support, wherein upright columns are symmetrically fixed on two sides of the top of the equipment support, and a top seat is fixed on the top of each upright column;
the middle of the top of the equipment support is provided with an electric sliding table;
the sliding end of the electric sliding table is provided with a lower die;
the mould comprises an upper mould, wherein a telescopic hydraulic cylinder is installed at the top of the top seat, and an upper mould is fixed at the piston end of the telescopic hydraulic cylinder.
Preferably, the molded sole comprises:
the sole comprises a base part, a plurality of first convex parts and a plurality of second convex parts, wherein the shape and the size of the base part are the same as those of the molded sole, and the surface of the base part, close to the forefoot part, is provided with the plurality of first convex parts;
the sole waist-socket part is positioned at the middle rear part of the formed sole, and a plurality of second convex parts are arranged on the surface of the sole waist-socket part;
the heel portion is located the rear portion of shaping sole, the surface of heel portion is provided with a plurality of third bellyings.
Preferably, the length of the forefoot part is half of the length of the formed sole.
Preferably, the number of the third protruding parts is three, and a buffering air bag is arranged between the three third protruding parts and is bonded at the bottom of the formed sole.
Preferably, basal portion, first bellying, heel and third bellying all adopt the rubber material, sole waist nest portion and second bellying all adopt the stereoplasm EVA material, the rubber material obtains through the foaming of rubber foaming sheet, the stereoplasm EVA material obtains through the foaming of EVA foaming sheet.
Preferably, in S1, the foamed sheet includes a first rubber foamed sheet segment, a second rubber foamed sheet segment, a third rubber foamed sheet segment and an EVA foamed sheet segment, the first rubber foamed sheet segment is first placed in the mold groove of the lower mold, the second rubber foamed sheet segment is then placed in the front portion of the first rubber foamed sheet segment, the third rubber foamed sheet segment is placed in the rear portion of the first rubber foamed sheet segment, the EVA foamed sheet segment is placed in the waist portion of the first rubber foamed sheet segment and the EVA foamed sheet segment is located between the second rubber foamed sheet segment and the third foamed rubber sheet segment.
Preferably, the sum of the lengths of the EVA foamed sheet section and the third rubber foamed sheet section is equal to the length of the second rubber foamed sheet section.
Preferably, a waist groove is formed in the sole waist of the formed sole, and the sole waist is located in the waist groove.
The technical scheme of the invention has the following beneficial technical effects:
as is well known, the human focus is close to the position of heel, and the buffering gasbag preferentially plays the cushioning effect, then second bellying and ground contact further reduce the vibration of foot's flank department, play fine guard action to foot's flank, and first bellying and third bellying contact with ground again at last can play fine supporting role, can improve the comfortable degree of foot like this.
Drawings
FIG. 1 is a bottom view of the molded sole of the present invention;
FIG. 2 is a schematic view of the formed sole of FIG. 1 with a sole portion of the sole removed;
FIG. 3 is a schematic structural view of a sole foaming and vulcanizing molding device according to the present invention;
fig. 4 is a schematic view of the placement of the foamed sheets in the lower mold.
In the figure: 1. forming a sole; 101. a base; 1011. a first boss portion; 102. a heel portion; 1021. a third boss portion; 1022. a buffer air bag; 103. the waist and fossa part of the sole; 1031. a second boss portion; 104. a waist pocket groove; 2. a sole foaming and vulcanizing molding device; 201. an equipment support; 202. a column; 203. a top seat; 204. a telescopic hydraulic cylinder; 205. an electric sliding table; 206. a lower die; 2061. a mold slot; 207. an upper die; 3. a foamed sheet; 301. a first rubber foam sheet section; 302. a second rubber foam sheet section; 303. an EVA foamed sheet section; 304. a third rubber foam sheet section.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the accompanying drawings in combination with the embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-4, the foaming process for environment-friendly shoes provided by the invention is based on a sole foaming and vulcanizing molding device 2, and comprises the following steps:
s1: placing the foamed sheet 3 into a lower die 206 in the sole foaming vulcanization molding device 2;
s2: pressing the upper mold 207 onto the lower mold 206, and then evacuating the cavity between the upper mold 207 and the lower mold 206;
s3: helium is injected into a cavity between the upper die 207 and the lower die 206, so that the pressure of the cavity between the upper die and the lower die is 8-12 MPa;
s4, the temperature between the upper mold 207 and the lower mold 206 reaches 130-.
As shown in fig. 3, in a specific embodiment of the present invention, a sole foaming and vulcanizing molding device 2 includes a device bracket 201, an electric sliding table 205, a lower die 206 and an upper die 207, wherein two sides of the top of the device bracket 201 are symmetrically fixed with columns 202, and the top of the columns 202 is fixed with a top seat 203; an electric sliding table 205 is arranged in the middle of the top of the equipment support 201; a lower die 206 is arranged at the sliding end of the electric sliding table 205; a telescopic hydraulic cylinder 204 is mounted on the top of the top seat 203, and an upper die 207 is fixed to the piston end of the telescopic hydraulic cylinder 204.
As an embodiment of the present invention, as shown in fig. 1, a molded shoe sole 1 includes: a base part 101, a sole waist-socket part 103 and a heel part 102, wherein the shape and the size of the base part 101 are the same as those of the formed sole 1, and a plurality of first convex parts 1011 are arranged on the surface of the base part 101 close to the half sole part; the sole waist 103 is located at the middle rear part of the molded sole 1, and a plurality of second protrusions 1031 are provided on the surface of the sole waist 103; the heel portion 102 is located at the rear of the molded sole, and a plurality of third convex portions 1021 is provided on the surface of the heel portion 102.
In one embodiment of the present invention, as shown in fig. 1, the length of the forefoot region is half of the length of the molded sole 1.
In one embodiment of the present invention, as shown in fig. 1, three third protrusions 1021 are provided, and a cushion bladder 1022 is provided between the three third protrusions 1021, and the cushion bladder 1022 is adhered to the bottom of the molded sole 1, that is, the rear of the molded sole 1 has a mounting groove for receiving the cushion bladder 1022, and the cushion bladder 1022 is mounted in the mounting groove.
In one embodiment of the present invention, as shown in fig. 1, the base portion 101, the first protrusion 1011, the heel portion 102 and the third protrusion 1021 are made of rubber, the sole waist portion 103 and the second protrusion 1031 are made of hard EVA, the rubber is foamed by a rubber foam sheet, and the hard EVA is foamed by an EVA foam sheet.
As one embodiment of the present invention, as shown in fig. 4, in S1 where the foamed sheet 3 includes a first rubber foamed sheet segment 301, a second rubber foamed sheet segment 302, a third rubber foamed sheet segment 304 and an EVA foamed sheet segment 303, the first rubber foamed sheet segment 301 is first placed in the mold groove 2061 of the lower mold 206, then the second rubber foamed sheet segment 302 is placed in the front portion of the first rubber foamed sheet segment 301, the third rubber foamed sheet segment 304 is placed in the rear portion of the first rubber foamed sheet segment 301, the EVA foamed sheet segment 303 is placed in the waist portion of the first rubber foamed sheet segment 301 and the EVA foamed sheet segment 303 is located between the second rubber foamed sheet segment 302 and the third rubber foamed sheet segment 304;
according to the invention, the foaming sheet is formed in one-step foaming manner, each foaming sheet is placed before foaming, and then foaming can be carried out according to a preset position after foaming, so that quick fusion of different materials is formed, the local damping performance of the sole can be improved, and the shoe sole is suitable for popularization and application.
In one embodiment of the present invention, as shown in fig. 4, the sum of the lengths of the EVA foam sheet segment 303 and the third rubber foam sheet segment 304 is equal to the length of the second rubber foam sheet segment 302.
In one embodiment of the present invention, as shown in fig. 1 and 2, a waist groove 104 is provided at the sole waist of the formed sole 1, and the sole waist 103 is located in the waist groove 104, and it should be noted that the foamed EVA foamed sheet segment 303 is not necessarily located completely in the waist groove 104, but is located approximately at this position;
it should be noted that the sizes of the first rubber foamed sheet segment 301, the second rubber foamed sheet segment 302, the third rubber foamed sheet segment 304 and the EVA foamed sheet segment 303 may be cut by manual measurement, or may be cut automatically by a cutting machine, and each sheet segment may be manually placed in the lower mold 206 or may be placed in the lower mold 206 by a customized device.
The working principle is as follows: placing the foamed sheet 3 into the lower mold 206 in the sole foaming and vulcanizing molding device 2, specifically, first placing the first rubber foamed sheet segment 301 in the mold groove 2061 of the lower mold 206, then placing the second rubber foamed sheet segment 302 in the front of the first rubber foamed sheet segment 301, placing the third rubber foamed sheet segment 304 in the rear of the first rubber foamed sheet segment 301, placing the EVA foamed sheet segment 303 in the waist of the first rubber foamed sheet segment 301 and the EVA foamed sheet segment 303 between the second rubber foamed sheet segment 302 and the third rubber foamed sheet segment 304; pressing the upper mold 207 onto the lower mold 206, and then evacuating the cavity between the upper mold 207 and the lower mold 206; helium is injected into a cavity between the upper die 207 and the lower die 206, so that the pressure of the cavity between the upper die and the lower die is 8-12 MPa; the temperature between the upper die 207 and the lower die 206 reaches 130-;
it is noted that the first convex portion 1011 and the third convex portion 1021 of the present invention have the same height, and the second convex portion 1031 has a height 1-5mm higher than the height of the first convex portion 1011, and preferably, the second convex portion 1031 has a height 3mm higher than the height of the first convex portion 1011.
It should be noted that the cushion airbag 1022 is made of silicone or rubber, nitrogen or helium is filled in the cushion airbag 1022, and the height of the cushion airbag 1022 is 1-5mm higher than the height of the first protrusion 1011, and preferably, the height of the cushion airbag 1022 is 3mm higher than the height of the first protrusion 1011; buffering gasbag 1022 and second bellying 1031's combined action, can play fine sole shock attenuation cushioning effect, wherein, the focus of human body is close to the position of heel, buffering gasbag 1022 preferentially plays the cushioning effect, then second bellying 1031 and ground contact, further reduce the vibration of foot's flank department, play fine guard action to foot's flank, last first bellying 1011 and third bellying 1021 and ground contact again, can play fine supporting role, can improve the comfortable degree of foot like this.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention.
Claims (7)
1. The foaming forming process of the environment-friendly shoe is characterized in that the foaming forming process is based on sole foaming vulcanization forming equipment (2), and comprises the following steps:
s1: placing the foaming sheet (3) into a lower die (206) in the sole foaming vulcanization molding equipment (2);
s2: pressing the upper die (207) onto the lower die (206), and then vacuumizing a cavity between the upper die (207) and the lower die (206);
s3: helium gas is injected into a cavity between the upper die (207) and the lower die (206), so that the pressure of the cavity between the upper die and the lower die is 8-12 MPa;
s4, heating the space between the upper mold (207) and the lower mold (206) to 130-160 ℃ for 10-15min, cooling to room temperature, and releasing pressure to obtain the molded sole (1);
the shaped sole (1) comprises:
a base part (101), wherein the shape and the size of the base part (101) are the same as those of the molded sole (1), and a plurality of first convex parts (1011) are arranged on the surface of the base part (101) close to the front sole part of a foot;
a sole waist-socket portion (103), wherein the sole waist-socket portion (103) is positioned at the middle rear part of the formed sole (1), and a plurality of second convex parts (1031) are arranged on the surface of the sole waist-socket portion (103);
the heel part (102), the heel part (102) is positioned at the rear part of the formed sole, three third convex parts (1021) are arranged on the surface of the heel part (102), buffering air bags (1022) are arranged among the three third convex parts (1021), and the buffering air bags (1022) are bonded at the bottom of the formed sole (1);
the height of the first protruding portion (1011) is the same as that of the third protruding portion (1021), the height of the second protruding portion (1031) is 1-5mm higher than that of the first protruding portion (1011), the second protruding portion (1031) is in contact with the ground, vibration of the foot waist is reduced, the foot waist is well protected, the first protruding portion (1011) and the third protruding portion (1021) are in contact with the ground again, a good supporting effect is achieved, and the comfort degree of the foot is improved.
2. The foam molding process of an environment-friendly shoe as claimed in claim 1, wherein the sole foam vulcanization molding device (2) comprises:
the device comprises an equipment support (201), wherein upright columns (202) are symmetrically fixed on two sides of the top of the equipment support (201), and top seats (203) are fixed on the tops of the upright columns (202);
the electric sliding table (205) is arranged in the middle of the top of the equipment support (201);
the lower die (206) is mounted at the sliding end of the electric sliding table (205);
the mould comprises an upper mould (207), a telescopic hydraulic cylinder (204) is installed at the top of the top seat (203), and the upper mould (207) is fixed at the piston end of the telescopic hydraulic cylinder (204).
3. The foam molding process of an environment-friendly shoe as claimed in claim 1, wherein the length of the forefoot part is half of the length of the molded sole (1).
4. The foam molding process of an environment-friendly shoe according to claim 1, wherein the base portion (101), the first protruding portion (1011), the heel portion (102) and the third protruding portion (1021) are made of rubber, the sole waist portion (103) and the second protruding portion (1031) are made of hard EVA, the rubber is obtained by foaming a rubber foam sheet, and the hard EVA is obtained by foaming an EVA foam sheet.
5. The foam molding process of environment-friendly shoes according to claim 1, in the S1 where the foamed sheet (3) includes a first rubber foamed sheet section (301), a second rubber foamed sheet section (302), a third rubber foamed sheet section (304), and an EVA foamed sheet section (303), the first rubber foamed sheet section (301) is first placed in the mold groove (2061) of the lower mold (206), then, the second rubber foam sheet section (302) is placed at the front of the first rubber foam sheet section (301), the third rubber foam sheet section (304) is placed at the rear of the first rubber foam sheet section (301), the EVA foam sheet section (303) is placed at the waist of the first rubber foam sheet section (301) and the EVA foam sheet section (303) is located between the second rubber foam sheet section (302) and the third rubber foam sheet section (304).
6. The foam molding process of claim 5, wherein the sum of the lengths of the EVA foam sheet segment (303) and the third rubber foam sheet segment (304) is equal to the length of the second rubber foam sheet segment (302).
7. The foaming process of an environment-friendly shoe as claimed in claim 1, wherein a waist groove (104) is formed at a sole waist of the formed sole (1), and the sole waist (103) is located in the waist groove (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111247945.XA CN113954283B (en) | 2021-10-26 | 2021-10-26 | Foaming forming process of environment-friendly shoes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111247945.XA CN113954283B (en) | 2021-10-26 | 2021-10-26 | Foaming forming process of environment-friendly shoes |
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| CN113954283A CN113954283A (en) | 2022-01-21 |
| CN113954283B true CN113954283B (en) | 2022-07-19 |
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| CN202111247945.XA Active CN113954283B (en) | 2021-10-26 | 2021-10-26 | Foaming forming process of environment-friendly shoes |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113954283A (en) | 2022-01-21 |
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Effective date of registration: 20220630 Address after: 523000 North Industrial Park, Lianhu Industrial Zone, Tangxia Town, Dongguan City, Guangdong Province Applicant after: DONGGUAN CHENXINFA FOAM Co.,Ltd. Address before: 510000 room 3902, No. 888, Yuncheng West Road, Baiyun District, Guangzhou, Guangdong Applicant before: Guangzhou Outdoor agent outdoor products Co.,Ltd. Applicant before: Guangzhou outu Trading Co., Ltd |
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