CN115447186A - Injection molding device for multilayer composite shoe sole and processing technology thereof - Google Patents

Injection molding device for multilayer composite shoe sole and processing technology thereof Download PDF

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Publication number
CN115447186A
CN115447186A CN202211080033.2A CN202211080033A CN115447186A CN 115447186 A CN115447186 A CN 115447186A CN 202211080033 A CN202211080033 A CN 202211080033A CN 115447186 A CN115447186 A CN 115447186A
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rubber
parts
mold
plate
sole
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黄治胜
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Zhejiang Benda Rubber & Plastic Co ltd
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Zhejiang Benda Rubber & Plastic Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • B29D35/14—Multilayered parts
    • B29D35/142—Soles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • C08J9/0023—Use of organic additives containing oxygen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066—Use of inorganic compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/16—Ethene-propene or ethene-propene-diene copolymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2453/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Emergency Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

The invention discloses an injection molding device of a multilayer composite sole, which comprises a bottom frame, wherein a heating structure and a mold are arranged at the top end of the bottom frame, an installation plate is arranged at the top end of the bottom frame, a top plate is arranged at the top end of the installation plate, a driving motor is arranged on the top plate, a connecting handle is arranged at the output end of the driving motor, a guide rod and a guide plate are arranged between the connecting handle and the top plate, the heating structure comprises an upper heating plate, a lower heating plate and an electric switch box, the top end of the upper heating plate is fixedly connected with the connecting handle, one end of the lower heating plate is fixed on the bottom frame, the mold is arranged between the upper heating plate and the lower heating plate, a foaming intermediate is formed by compounding EVA (ethylene vinyl acetate), EPDM (ethylene-propylene-diene monomer) rubber, 8CPOE (epoxy-based carbon dioxide) rubber, OBC (OBC), modified PP (PP) and the like, the foaming intermediate has higher elastic modulus, can better support and buffer the feet, the plastic layer plays a role of connecting the foaming intermediate and the upper, improves the binding force of the foaming intermediate and the upper, and prevents the foaming intermediate from cracking of the upper.

Description

Injection molding device for multilayer composite shoe sole and processing technology thereof
Technical Field
The invention relates to the field of injection molding devices, in particular to an injection molding device for a multilayer composite sole and a processing technology thereof.
Background
The rubber sole is made of rubber, and the rubber sole material can be roughly divided into natural rubber or artificial synthetic rubber. The natural rubber has the advantages of being very soft, excellent in elasticity, capable of being suitable for various sports and playing a role in shock absorption, but has the obvious defect that the natural rubber is not wear-resistant. The indoor sports shoes are made of natural rubber.
At present, the double-hardness rubber mould pressing material is more and more widely applied to the aspects of soles and the like, the production process of the existing double-hardness rubber mould pressing material is difficult to control due to the defects of the formula or the manufacturing process, the physical properties of the double-hardness rubber mould pressing material are finally unsatisfactory, the requirement of a user on comfort level is difficult to meet, and the joint point of the two materials has the risk of disjointing. Present rubber sole forming device is mostly the sole material mould pressing of single material simultaneously, then bonds the multilayer sole through the adhesive, and present forming device forming die needs manual putting into and takes out hot pressing mechanism, has the risk of scalding.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an injection molding device of a multi-layer composite sole and a processing technology thereof, the multi-layer rubber sole processing method is a multi-layer rubber sole prepared by compounding and hot-pressing a rubber wear-resistant layer, a foaming intermediate and a plastic layer, the wear-resistant layer is compounded by butadiene rubber, nitrile rubber and nano aramid fiber, has higher bending strength and compressive strength and high wear resistance, is suitable for being used as a shoe large base material, the foaming intermediate is compounded by EVA, EPDM, 8CPOE, OBC, modified PP and the like, has higher elastic modulus, can better support and buffer feet, and the plastic layer plays a role in connecting the foaming intermediate and an upper, improves the binding force of the foaming intermediate and the upper and prevents the foaming intermediate and the upper from cracking.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides an injection moulding device of compound sole of multilayer, includes the chassis, the top of chassis is provided with heating structure and mould, the top of chassis is provided with the mounting panel, the top of mounting panel is provided with the roof, and is provided with driving motor on the roof, driving motor's output is provided with the connection handle, be provided with guide bar and deflector between connection handle and the roof, including last hot plate, lower hot plate and electrical switch box in the heating structure, go up the top and the connection handle fixed connection of hot plate, the one end of hot plate is fixed in on the chassis down, the mould sets up in last hot plate and down between the hot plate.
As a preferred technical scheme of the invention, the electrical switch box is arranged at the front end of the bottom frame, the upper heating plate and the lower heating plate are both electrically connected with the electrical switch box, and the upper heating plate and the lower heating plate are of plate structures with heating structures arranged inside.
As a preferable technical scheme of the invention, the die comprises an upper die and a lower die, a die cavity is formed in the lower die, and the die cavity is of a sole-shaped groove body structure.
As a preferred technical scheme of the invention, the size of the upper heating plate and the lower heating plate is more than three times that of the die.
The utility model provides a multilayer composite shoe sole processing technology, including rubber wearing layer, foaming midbody and plastic layer in the multilayer composite shoe sole, rubber wearing layer and foaming midbody pass through hot pressing integrated into one piece, and its processing step is as follows:
s1: adding butadiene rubber, nitrile rubber and nano aramid fiber into an open mill for mixing, sequentially adding zinc oxide, stearic acid, an accelerator, a vulcanizing agent, white carbon black and an anti-aging agent after roller wrapping, extending and extruding the components through a calender after the components are uniformly mixed to prepare a wear-resistant film, and cutting the film according to the size of a die cavity of a sole die to obtain a wear-resistant layer rubber blank;
s2: adding natural rubber, butadiene rubber and butadiene styrene rubber into an open mill for mixing, sequentially adding zinc oxide, stearic acid, an accelerator, a vulcanizing agent, white carbon black and an anti-aging agent after roller wrapping, extending and extruding through a calender after all components are uniformly mixed to prepare an elastic film, and cutting the elastic film according to the size of a mold cavity of a sole mold to obtain an elastic layer rubber blank;
s3: sequentially superposing the wear-resistant layer rubber blank, the fiber mesh cloth and the elastic layer rubber blank, then placing the superposed layers into a mold, then placing the mold into a flat vulcanizing machine, and vulcanizing and shaping the mold under set time, temperature and pressure to obtain the multilayer rubber sole.
As a preferable technical scheme of the invention, the rubber wear-resistant layer comprises the following raw materials in parts by weight: 35-40 parts of butadiene rubber, 20-25 parts of nitrile rubber, 10-15 parts of nano aramid fiber, 3-5 parts of zinc oxide, 5-7 parts of stearic acid, 5-8 parts of an accelerator, 8-10 parts of a vulcanizing agent, 8-15 parts of white carbon black and 3-5 parts of an anti-aging agent.
As a preferred technical scheme of the invention, the foaming intermediate comprises the following raw materials in parts by weight: EVA:45-50 parts of a solvent; EPDM:10-15 parts; 8CPOE:10-15 parts; and (3) OBC:8-10 parts; modified PP:5-8 parts; compounding flexible high elastic glue: 10-15 parts; transparent filler: 5-8 parts; stearic acid: 0.4-0.6 part; zinc stearate: 0.6-0.8 part; zinc oxide: 0.8-1 part; blBP:0.3-0.4 part; crosslinking accelerator: 0.3-0.5 part; AC foaming agent: 2-2.5 parts.
As a preferred technical scheme of the present invention, in the step S3, when the flat plate is vulcanized, an ultrasonic component is used to perform ultrasonic treatment on the rubber blank in the mold, which specifically includes the following steps:
(1): sequentially superposing the rubber wear-resistant layer, the foaming intermediate and the plastic layer, putting the superposed layers into a mold, and closing the mold;
(2): applying initial pressure of 0.5-2MPa to the mold;
(3): heating the rubber blank in the mold to 140-160 ℃, and carrying out heat preservation and vulcanization treatment for 20-40min;
(4): starting the ultrasonic wave assembly, and carrying out ultrasonic treatment on the rubber blank in the mold for 10-20min
(5): after the ultrasonic treatment is stopped, the pressure of the die is increased to 3-5MPa, the temperature is increased to 180-200 ℃, and vulcanization is carried out for 1-2h;
(6): cooling the mold, opening the mold, and taking out the molded multilayer rubber sole.
Compared with the prior art, the invention can achieve the following beneficial effects:
the processing method of the multi-layer rubber sole comprises the step of preparing the multi-layer rubber sole through the compound hot pressing of the rubber wear-resistant layer, the foaming intermediate and the plastic layer, wherein the wear-resistant layer is formed by compounding butadiene rubber, nitrile rubber and nano aramid fiber, has high bending strength and compressive strength and high wear resistance, is suitable for being used as a large sole material, the foaming intermediate is formed by compounding EVA, EPDM, 8CPOE, OBC, modified PP and the like, has high elastic modulus, can well support and buffer feet, and the plastic layer plays a role in connecting the foaming intermediate and an upper, improves the bonding force of the foaming intermediate and the upper and prevents the foaming intermediate and the upper from cracking.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of a heating structure of the present invention;
fig. 3 is a schematic structural view of the mold of the present invention.
Wherein: 1. a chassis; 11. mounting a rod; 2. a heating structure; 21. an upper heating plate; 22. a lower heating plate; 23. an electrical switch box; 3. a mold; 31. an upper die; 32. a lower die; 33. a die cavity; 4. a drive motor; 41. a connecting handle; 41. a guide bar; 42. a guide plate.
Detailed Description
The present invention will be further described with reference to specific examples, but the following examples are only preferred embodiments of the present invention, and not all embodiments of the present invention are intended to be included in the scope of the present invention. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Example (b):
as shown in fig. 1-3, the invention provides an injection molding device for a multi-layer composite sole, which comprises a chassis 1, wherein a heating structure 2 and a mold 3 are arranged at the top end of the chassis 1, an installation plate 11 is arranged at the top end of the chassis 1, a top plate is arranged at the top end of the installation plate 11, a driving motor 4 is arranged on the top plate, a connecting handle 41 is arranged at the output end of the driving motor 4, a guide rod 42 and a guide plate 42 are arranged between the connecting handle 41 and the top plate, the heating structure 2 comprises an upper heating plate 21, a lower heating plate 22 and an electric switch box 23, the top end of the upper heating plate 21 is fixedly connected with the connecting handle 41, one end of the lower heating plate 22 is fixed on the chassis 1, and the mold 3 is arranged between the upper heating plate 21 and the lower heating plate 22.
In other embodiments, the electrical switch box 23 is disposed at the front end of the chassis 1, the upper heating plate 21 and the lower heating plate 22 are electrically connected to the electrical switch box 23), and the upper heating plate 21 and the lower heating plate 22 are provided with a plate structure having a heating structure inside.
In other embodiments, the mold 3 includes an upper mold 31 and a lower mold 32, a cavity 33 is opened inside the lower mold 32, and the cavity 33 is a sole-like groove structure.
In other embodiments, the upper and lower heating plates 21, 22 are greater than three times the size of the die 3.
Example one
The utility model provides a multilayer composite shoe sole processing technology, includes rubber wearing layer, foaming midbody and plastic layer in the multilayer composite shoe sole, and rubber wearing layer and foaming midbody pass through hot pressing integrated into one piece, and its processing step is as follows:
s1: adding butadiene rubber, nitrile rubber and nano aramid fiber into an open mill for mixing, sequentially adding zinc oxide, stearic acid, an accelerator, a vulcanizing agent, white carbon black and an anti-aging agent after roller wrapping, extending and extruding the components through a calender after the components are uniformly mixed to prepare a wear-resistant film, and cutting the film according to the size of a die cavity of a sole die to obtain a wear-resistant layer rubber blank;
s2: adding natural rubber, butadiene rubber and styrene butadiene rubber into an open mill for mixing, sequentially adding zinc oxide, stearic acid, an accelerator, a vulcanizing agent, white carbon black and an anti-aging agent after roller wrapping, extending and extruding through a calender after all components are uniformly mixed to prepare an elastic rubber sheet, and cutting the rubber sheet according to the size of a die cavity of a sole die to obtain an elastic layer rubber blank;
s3: sequentially superposing the wear-resistant layer rubber blank, the fiber mesh cloth and the elastic layer rubber blank, then placing the superposed layers into a mold, then placing the mold into a flat vulcanizing machine, and vulcanizing and shaping the mold under set time, temperature and pressure to obtain the multilayer rubber sole.
Example two:
the rubber wear-resistant layer comprises the following raw materials in parts by weight: 35 parts of butadiene rubber, 20 parts of nitrile rubber, 10 parts of nano aramid fiber, 3 parts of zinc oxide, 5 parts of stearic acid, 5 parts of an accelerator, 8 parts of a vulcanizing agent, 8 parts of white carbon black and 5 parts of an anti-aging agent.
In other embodiments, the foaming intermediate comprises the following raw materials in parts by weight: EVA:45 parts of (1); EPDM:10 parts of (A); 8CPOE:10 parts of (A); and (3) OBC:8 parts of a mixture; modified PP:5 parts of a mixture; compounding flexible high elastic glue: 10 parts of (A); transparent filler: 5 parts of a mixture; stearic acid: 0.4 part; zinc stearate: 0.6 part; zinc oxide: 0.8 part; blBP:0.3 part; crosslinking accelerator: 0.3 part; AC foaming agent: and 2 parts.
In the step S3, ultrasonic wave components are adopted to carry out ultrasonic treatment on the rubber blank in the mould during plate vulcanization, and the method specifically comprises the following steps:
(1): sequentially superposing the rubber wear-resistant layer, the foaming intermediate and the plastic layer, putting the superposed layers into a mold, and closing the mold;
(2): applying initial pressure of 0.5-2MPa to the mold;
(3): heating the rubber blank in the mold to 140-160 ℃, and carrying out heat preservation and vulcanization treatment for 20-40min;
(4): starting the ultrasonic wave assembly, and carrying out ultrasonic treatment on the rubber blank in the mold for 10-20min
(5): after the ultrasonic treatment is stopped, the pressure of the die is increased to 3-5MPa, the temperature is increased to 180-200 ℃, and vulcanization is carried out for 1-2h;
(6): cooling the mold, opening the mold, and taking out the molded multilayer rubber sole.
The invention relates to a method for processing a multilayer rubber sole, which is characterized in that a rubber wear-resistant layer, a foaming intermediate and a plastic layer are compounded and hot-pressed to prepare the multilayer rubber sole, the wear-resistant layer is compounded by butadiene rubber, nitrile rubber and nano aramid fiber, the wear-resistant layer has high bending strength and compressive strength and high wear resistance, and is suitable for being used as a shoe large substrate material, the foaming intermediate is compounded by EVA, EPDM, 8CPOE, OBC, modified PP and the like, the foaming intermediate has high elastic modulus, can well support and buffer feet, the plastic layer plays a role in connecting the foaming intermediate and an upper, the bonding force of the foaming intermediate and the upper is improved, and the foaming intermediate and the upper are prevented from cracking.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
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. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides an injection moulding device of compound sole of multilayer, includes chassis (1), its characterized in that: the top of chassis (1) is provided with heating structure (2) and mould (3), the top of chassis (1) is provided with mounting panel (11), the top of mounting panel (11) is provided with the roof, and is provided with driving motor (4) on the roof, the output of driving motor (4) is provided with connecting handle (41), be provided with guide bar (42) and deflector (42) between connecting handle (41) and the roof, including hot plate (21), lower hot plate (22) and electrical switch box (23) in heating structure (2), the top and the connecting handle (41) fixed connection of going up hot plate (21), the one end of hot plate (22) is fixed in on chassis (1) down, mould (3) set up between last hot plate (21) and lower hot plate (22).
2. The injection molding apparatus for a multi-layer composite shoe sole according to claim 1, wherein: electric switch box (23) set up in the front end of chassis (1), go up between hot plate (21) and lower hot plate (22) all with electric switch box (23) electric connection, just go up hot plate (21) and be equipped with the plate structure that has heating structure for inside with lower hot plate (22).
3. The injection molding apparatus for a multi-layer composite shoe sole according to claim 1, wherein: including last mould (31) and bed die (32) in mould (3), die cavity (33) have been seted up to the inside of bed die (32), just die cavity (33) are the cell body structure of sole pattern.
4. The injection molding apparatus for multi-layer composite shoe soles according to claim 1, wherein: the size of the upper heating plate (21) and the lower heating plate (22) is more than three times that of the die (3).
5. A processing technology of a multi-layer composite sole is characterized in that: the multi-layer composite shoe sole comprises a rubber wear-resistant layer, a foaming intermediate and a plastic layer, wherein the rubber wear-resistant layer and the foaming intermediate are integrally formed through hot pressing, and the processing steps are as follows:
s1: adding butadiene rubber, nitrile rubber and nano aramid fiber into an open mill for mixing, sequentially adding zinc oxide, stearic acid, an accelerator, a vulcanizing agent, white carbon black and an anti-aging agent after roller wrapping, extending and extruding through a calender after all components are uniformly mixed to prepare a wear-resistant film, and cutting the film according to the size of a mold cavity of a sole mold to obtain a wear-resistant layer rubber blank;
s2: adding natural rubber, butadiene rubber and butadiene styrene rubber into an open mill for mixing, sequentially adding zinc oxide, stearic acid, an accelerator, a vulcanizing agent, white carbon black and an anti-aging agent after roller wrapping, extending and extruding through a calender after all components are uniformly mixed to prepare an elastic film, and cutting the elastic film according to the size of a mold cavity of a sole mold to obtain an elastic layer rubber blank;
s3: sequentially superposing the wear-resistant layer rubber blank, the fiber mesh cloth and the elastic layer rubber blank, then placing the superposed layers into a mold, then placing the mold into a flat vulcanizing machine, and vulcanizing and shaping the mold under set time, temperature and pressure to obtain the multilayer rubber sole.
6. The process of claim 5, wherein the process comprises the following steps: the rubber wear-resistant layer comprises the following raw materials in parts by weight: 35-40 parts of butadiene rubber, 20-25 parts of nitrile rubber, 10-15 parts of nano aramid fiber, 3-5 parts of zinc oxide, 5-7 parts of stearic acid, 5-8 parts of an accelerator, 8-10 parts of a vulcanizing agent, 8-15 parts of white carbon black and 3-5 parts of an anti-aging agent.
7. The process of claim 5, wherein the process comprises the following steps: the foaming intermediate comprises the following raw materials in parts by weight: EVA:45-50 parts of a solvent; EPDM:10-15 parts; 8CPOE:10-15 parts; and (3) OBC:8-10 parts; modified PP:5-8 parts; compounding flexible high elastic glue: 10-15 parts; transparent filler: 5-8 parts; stearic acid: 0.4-0.6 part; zinc stearate: 0.6-0.8 part; zinc oxide: 0.8-1 part; blBP:0.3-0.4 part; crosslinking accelerator: 0.3-0.5 part; AC foaming agent: 2-2.5 parts.
8. The process for manufacturing a multilayer composite shoe sole according to claim 5, wherein: in the step S3, ultrasonic wave components are adopted to carry out ultrasonic treatment on the rubber blank in the mold during plate vulcanization, and the method specifically comprises the following steps:
(1): sequentially superposing the rubber wear-resistant layer, the foaming intermediate and the plastic layer, putting the superposed layers into a mold, and closing the mold;
(2): applying initial pressure of 0.5-2MPa to the mold;
(3): heating the rubber blank in the mold to 140-160 ℃, and carrying out heat preservation and vulcanization treatment for 20-40min;
(4): starting the ultrasonic wave assembly, and carrying out ultrasonic treatment on the rubber blank in the mold for 10-20min
(5): after the ultrasonic treatment is stopped, the pressure of the die is increased to 3-5MPa, the temperature is increased to 180-200 ℃, and vulcanization is carried out for 1-2h;
(6): cooling the mold, opening the mold, and taking out the molded multilayer rubber sole.
CN202211080033.2A 2022-09-05 2022-09-05 Injection molding device for multilayer composite shoe sole and processing technology thereof Pending CN115447186A (en)

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CN202211080033.2A CN115447186A (en) 2022-09-05 2022-09-05 Injection molding device for multilayer composite shoe sole and processing technology thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211080033.2A CN115447186A (en) 2022-09-05 2022-09-05 Injection molding device for multilayer composite shoe sole and processing technology thereof

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