CN111098437A - Supercritical foaming equipment and foaming process - Google Patents
Supercritical foaming equipment and foaming process Download PDFInfo
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- CN111098437A CN111098437A CN201911302510.3A CN201911302510A CN111098437A CN 111098437 A CN111098437 A CN 111098437A CN 201911302510 A CN201911302510 A CN 201911302510A CN 111098437 A CN111098437 A CN 111098437A
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- Prior art keywords
- shoe mold
- reaction kettle
- mold
- lower shoe
- cylinder
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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
- 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
- B29C44/60—Measuring, controlling or regulating
-
- 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
- B29L2031/504—Soles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a supercritical foaming device and a foaming process, which comprises a reaction kettle, wherein an operation table is arranged in the reaction kettle, a lower shoe mold is placed in the operation table, a first air cylinder is arranged at the left side of the reaction kettle, a piston rod of the first air cylinder penetrates through the reaction kettle and is connected with a first push plate, a second air cylinder is arranged above the reaction kettle, a piston rod of the second air cylinder is connected with an upper shoe mold, a vacuumizing device, a pressure relief opening and an air inlet are arranged above the reaction kettle, the right side of the reaction kettle is connected with a cooling chamber, a sealing door for sealing the window is arranged at the window edge at the communication part of the cooling chamber and the reaction kettle, a third lifting air cylinder is connected above the sealing door, air-permeable accessories are integrally formed in the lower shoe mold and the upper shoe mold, each air-permeable accessory comprises a main pipeline, more than one branch pipeline is communicated with the main pipeline, and the other end of the branch pipeline is communicated with the corresponding lower, a placing table is arranged in the cooling chamber. This structure improves work efficiency, reduces the cost of labor.
Description
Technical Field
The invention relates to the technical field of foaming mechanisms, in particular to supercritical foaming equipment and a foaming process.
Background
Along with the improvement of the living standard of people and the attention on self health, more and more people gradually increase physical training and outdoor activities, and the requirements of people on shoes also tend to be diversified, so that the shoes are changed from the prior art that the shoes pay attention to beauty and elegance to the safety and comfort. Therefore, the wearing comfort is improved, and the development of light high-elastic foaming materials is the main development direction of the shoe soles.
In addition to the conventional EVA material in foamed shoe soles, elastomeric materials POE, SEBS, infusitm OBC, TPU, etc. have all begun to be used in foamed shoe soles to improve the performance of the shoe soles. In view of the fact that the conventional EVA cold and hot press insole or outsole needs to be subjected to cutting of a foaming sheet or a small foaming blank and then cold pressing or hot pressing through a mold, the process flow is long, and each process needs to consume energy, time and labor, the inventor of the present invention has made intensive research on the above problems.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provide supercritical foaming equipment and a supercritical foaming process which improve the working efficiency and reduce the labor cost.
In order to achieve the purpose, the supercritical foaming equipment comprises a reaction kettle, an operation table is arranged in the reaction kettle, a lower shoe mold is placed in the operation table, a first air cylinder is arranged on the left side of the reaction kettle, a piston rod of the first air cylinder penetrates through the reaction kettle and is connected with a first push plate, the first push plate and the lower shoe mold are on the same horizontal plane, a second air cylinder is arranged above the reaction kettle, a piston rod of the second air cylinder extends into the reaction kettle and is connected with an upper shoe mold, the upper shoe mold is positioned right above the lower shoe mold, a shoe mold cavity is arranged in each of the lower shoe mold and the upper shoe mold, the two shoe mold cavities are mutually spliced to form a shoe pad foaming cavity, a vacuumizing device, a pressure relief opening and an air inlet which are communicated with the interior of the reaction kettle are arranged above the reaction kettle, a cooling chamber communicated with the interior of the reaction kettle is connected on the right side of the reaction, a window is arranged at the communication position of the cooling chamber and the reaction kettle, a sealing door for sealing the window is arranged at the side edge of the window, a third lifting cylinder for driving the sealing door to ascend to open the window and descend to close the window is connected above the sealing door, ventilation accessories are integrally formed in the lower shoes and the upper shoes, each ventilation accessory comprises a main pipeline, more than one branch pipeline is communicated with the main pipeline, the other end of each branch pipeline is communicated with a shoe mould cavity in the corresponding lower shoes or the corresponding upper shoes, one end of each main pipeline extends out of the corresponding lower shoes or the corresponding upper shoes and is connected with a valve, a placing table which is horizontally flush with the operating table is arranged in the cooling chamber, a turntable is arranged above the placing table, nozzles are annularly distributed on the turntable, a first motor which is rotationally connected with the turntable is arranged above the cooling chamber, and a sealing cover door is hinged to the right side of the cooling chamber, the right side of the cooling chamber is provided with a grabbing pushing mechanism which can extend into the cooling chamber and corresponds to the position of the sealing cover door, and the left side of the operating platform is provided with a lower shoe mold positioning plate.
Further, conveniently collect water, place the platform and be network structure, be equipped with the funnel in the below of placing the platform and collect the passageway, collect the below of passageway at the funnel and be equipped with the filter screen, be equipped with the reservoir in the below of filter screen, the output in reservoir is connected with the water pump, the other end of water pump is connected with main water pipe, main water pipe is soft material, main water piping connection each shower nozzle is connected with the water inlet on the reservoir.
Further, the cooling effect is improved, the lower end of the funnel collecting channel is connected with a heat exchanger, the water inlet of the heat exchanger is connected with the lower end of the funnel collecting channel, the water outlet of the heat exchanger is connected with the water storage bin, the refrigerant inlet of the heat exchanger is used for entering refrigerant, and the refrigerant outlet of the heat exchanger is used for discharging the refrigerant which is changed into heat after heat exchange.
Furthermore, make it can be suitable for different product model demands, the piston rod of second cylinder stretches into in the reation kettle and is connected with the operation locating plate, mould passes through screw detachable to be fixed on the operation locating plate on the shoes.
Further, for convenient operation, the piston rod of second cylinder stretches into in the reation kettle and is connected with the horizontal stand, is equipped with the third cylinder that the level was placed at the side of horizontal stand, be connected with the locating plate on the piston rod of third cylinder, the top of locating plate is equipped with the draw runner, be equipped with on the horizontal stand with draw runner complex draw runner shifting chute, be equipped with first boss on the right side of locating plate lower surface, be equipped with first inner groovy in the left side of locating plate lower surface, be equipped with the second electro-magnet in first inner groovy, the left side of operation locating plate upper surface articulate in first boss through the articulated shaft, the right side of operation locating plate upper surface through cooperating and combining bellied second paster with the second electro-magnet, the articulated shaft has been linked up and has been connected with the axis motor.
Further, improve sealed effect, be equipped with first sealing washer in the junction of first cylinder and reation kettle, first sealing washer is sucker structure, and the right side of first sealing washer is equipped with extends the ring, it inserts the reation kettle side to extend the ring.
Further, improve sealed effect, the lower extreme of sealing door with place the laminating of platform, be equipped with the second sealing washer in the laminating department of placing platform and sealing door.
Furthermore, the operation of being convenient for is equipped with the magnetic electro-magnet after getting electrified in the right side of first push pedal, is equipped with the magnet of inhaling with electro-magnet complex in the left side of shoes lower mould.
Furthermore, the shoe mold closing device is convenient to position, avoids mold closing failure, and is provided with a positioning sensor for positioning the position of the lower shoe mold on the upper shoe mold.
The invention also discloses a foaming process of the supercritical foaming equipment, which specifically comprises the following steps:
s1, firstly processing a mold, printing a ventilation accessory by using a 3D printing technology, placing the ventilation accessory in the mold for injection molding the upper shoe mold and the lower shoe mold, integrally injection molding the upper shoe mold and the lower shoe mold to form a complete upper shoe mold and a complete lower shoe mold, and then installing the upper shoe mold at a corresponding position;
s2, extruding and granulating the blank through an extruder according to the preset proportion requirement, putting the extruded blank into a shoe mold cavity of a lower shoe mold, opening a sealing cover door and a sealing door, conveying the lower shoe mold into a corresponding operation platform below the reaction kettle, and positioning the initial position through a lower shoe mold positioning plate;
s3, closing the sealing cover door and the sealing door;
s4, driving a second air cylinder to work, pressing down the upper shoe mold to be matched with the lower shoe mold for mold closing, closing the valve 18, and realizing foaming of the blank inside the closed mold through the processes of temperature control, pressurization, pressure maintaining and primary pressure relief of the inside of the reaction kettle in sequence;
s5, opening a valve while foaming the blank in the shoe mold, and discharging the air pressure in the shoe mold through the air-permeable accessory;
s5, starting a vacuumizing device to pump out air in the kettle body, so that the foaming material in the shoe mold is more tightly attached to the whole mold cavity;
s6, releasing pressure again to restore the kettle to normal pressure, resetting the upper shoe mold, separating the lower shoe mold, starting the first cylinder, opening the sealing door, pushing the lower shoe mold into the cooling chamber, closing the sealing door, starting the spray head and the first motor, cooling the product, rapidly cooling and shaping to obtain shoe shapes and lines, cooling, opening the sealing door, taking out the product, and repeating the steps. The method comprises the steps of placing a sub-blank in an EVA cold and hot pressing shoe sole air-permeable mold in a reaction kettle, performing supercritical foaming, in the pressure relief process of the reaction kettle, starting foaming in the cold and hot pressing shoe sole mold under the condition that the pressures in the reaction kettle and a shoe mold are unbalanced, pumping out air in the reaction kettle through a vacuumizing device after the pressure relief of the reaction kettle is finished, enabling the interior of the kettle to be in a state between rough vacuum and medium vacuum, enabling a foaming blank in the shoe mold to be more tightly attached to the mold cavity, then releasing the pressure again, taking out the shoe mold, and rapidly cooling through a cooling device to obtain complete shoe shapes and lines.
According to the supercritical foaming equipment and the foaming process, after the lower shoe mold and the upper shoe mold which are placed in the reaction kettle are assembled, the internal blank is subjected to a supercritical foaming process, in the pressure relief process of the reaction kettle, the blank starts to foam in the lower shoe mold and the upper shoe mold under the condition that the pressures in the reaction kettle and the upper shoe mold are unbalanced, after the pressure relief of the reaction kettle is finished, air in the reaction kettle is pumped out through vacuumizing equipment, so that the interior of the kettle is in a state between rough vacuum and medium vacuum, the foaming blank in the lower shoe mold and the upper shoe mold can be more tightly attached to the mold cavity, then the pressure is relieved again, the shoe mold is taken out, and the cooling chamber is used for rapidly cooling to obtain complete shoe shapes and lines, so that the processing time of the large sole of the traditional EVA cold and hot pressed shoe insole is shortened, the energy consumption is reduced, the working efficiency is improved, and the labor cost is reduced.
Drawings
In order to more clearly illustrate the implementation of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a schematic view of the overall configuration of a supercritical foaming apparatus in example 1;
FIG. 2 is a schematic view of the overall configuration of a supercritical foaming apparatus in example 2;
FIG. 3 is a schematic view of the overall configuration of a supercritical foaming apparatus in example 3;
FIG. 4 is a schematic view of the overall configuration of a supercritical foaming apparatus in example 4;
FIG. 5 is a schematic view showing the overall configuration of a supercritical foaming apparatus in example 5;
FIG. 6 is a schematic view showing the overall configuration of a supercritical foaming apparatus according to example 6;
FIG. 7 is a schematic view showing the overall configuration of a supercritical foaming apparatus according to example 7;
fig. 8 is a schematic view of the overall structure of a supercritical foaming apparatus in example 8.
In the reference symbols: a reaction kettle 1; an operation table 2; a lower shoe mold 3; a first cylinder 4; a first push plate 5; a second cylinder 6; an upper shoe mold 7; a shoe mold cavity 8; a vacuum-pumping device 9; a pressure relief port 10; an air inlet 11; a cooling chamber 12; a window 13; a sealing door 14; a third lift cylinder 15; a main pipeline 16; a branch line 17; a valve 18; a placing table 19; a turntable 20; a head 21; a first motor 22; a seal cover door 23; a grasping and pushing mechanism 24; lower shoe mold positioning plate 25; a funnel collection channel 26; a filter screen 27; a water pump 28; a main water pipe 30; a water inlet 29; a heat exchanger 31; operating the positioning plate 32; a first seal ring 33; an extension ring 34; a second seal ring 35; an electromagnet 37; a attracting magnet 36; a positioning sensor 38; a water storage bin 39; a horizontal bracket 40; a third cylinder 41; the positioning plate 42; a slide bar 43; a slide moving groove 44; a first inner groove 50; a second electromagnet 48; a first boss 46; a second patch 49.
Detailed Description
The invention will be further described with reference to the following examples.
Example 1:
the supercritical foaming equipment provided by the embodiment, referring to fig. 1, comprises a reaction kettle 1, an operation table 2 is arranged in the reaction kettle 1, a lower shoe mold 3 is placed in the operation table 2, a first cylinder 4 is arranged on the left side of the reaction kettle 1, a piston rod of the first cylinder 4 penetrates through the reaction kettle 1 and then is connected with a first push plate 5, the first push plate 5 and the lower shoe mold 3 are on the same horizontal plane, a second cylinder 6 is arranged above the reaction kettle 1, a piston rod of the second cylinder 6 extends into the reaction kettle 1 and is connected with an upper shoe mold 7, the upper shoe mold 7 is positioned right above the lower shoe mold 3, a shoe mold cavity 8 is arranged in each of the lower shoe mold 3 and the upper shoe mold 7, the two shoe mold cavities 8 are spliced with each other to form a shoe pad foaming chamber, a vacuumizing device 9, a pressure relief opening 10 and an air inlet 11 are arranged above the reaction kettle 1 and are communicated with the inside of the reaction kettle 1, a cooling chamber 12 communicated with the inside of the reaction kettle 1 is connected to the right side of the reaction kettle 1, a window 13 is arranged at the communication position of the cooling chamber 12 and the reaction kettle 1, a sealing door 14 for sealing the window 13 is arranged at the side edge of the window 13, more than one branch pipeline 17 is communicated with the main pipeline 16, the other end of each branch pipeline 17 is communicated with a corresponding shoe mold cavity 8 in the corresponding shoe lower mold 3 or the corresponding shoe upper mold 7, one end of the main pipeline 16 extends out of the corresponding shoe lower mold 3 or the corresponding shoe upper mold 7 and is connected with a valve 18, a placing platform 19 horizontally aligned with the operation platform 2 is arranged in the cooling chamber 12, a turntable 20 is arranged above the placing platform 19, the spray heads 21 are annularly distributed on the rotating disc 20, the first motor 22 which is rotatably connected with the rotating disc 20 is arranged above the cooling chamber 12, the right side of the cooling chamber 12 is hinged with a sealing cover door 23, the right side of the cooling chamber 12 corresponding to the sealing cover door 23 is provided with a grabbing pushing mechanism 24 which can extend into the cooling chamber 12, and the left side of the operating platform 2 is provided with a lower shoe mold positioning plate 25.
The embodiment also discloses a foaming process of the supercritical foaming equipment, which specifically comprises the following steps:
s1, firstly processing a mold, printing a ventilation accessory by using a 3D printing technology, placing the ventilation accessory in the mold for injection molding the upper shoe mold 7 and the lower shoe mold 3, integrally injection molding the ventilation accessory to form the complete upper shoe mold 7 and the complete lower shoe mold 3, and then installing the upper shoe mold 7 at a corresponding position;
s2, extruding and granulating the blank through an extruder according to the preset proportion requirement, putting the extruded and granulated blank into a shoe mold cavity 8 of a lower shoe mold 3, opening a sealing cover door 23 and a sealing door 14, conveying the lower shoe mold 3 into a corresponding operating platform 2 below the reaction kettle 1, and positioning the initial position through a lower shoe mold positioning plate 25;
s3, and then closing the sealing cover door 23 and the sealing door 14;
s4, driving a second cylinder 6 to work, pressing down an upper shoe mold 7 to be matched with a lower shoe mold 3 for mold closing, closing a valve 18, and realizing foaming of a blank inside the closed mold through the processes of temperature control, pressurization, pressure maintaining and initial pressure relief of the inside of the reaction kettle 1 in sequence;
s5, opening the valve 18 while foaming the blank in the shoe mold, and discharging the air pressure in the shoe mold through the air-permeable accessory;
s5, starting the vacuumizing device 9 to pump out air in the kettle body, so that the foaming material in the shoe mold is more tightly attached to the whole mold cavity;
s6, releasing pressure again to restore the kettle body to a normal pressure state, then resetting the upper shoe mold 7 to separate from the lower shoe mold 3, starting the first air cylinder 4, opening the sealing door 14, pushing the lower shoe mold 3 into the cooling chamber 12, closing the sealing door 14, then starting the spray head 21 and the first motor 22, cooling the product, rapidly cooling and shaping to obtain the shoe shape and the grain, opening the sealing door 23 after cooling, taking out the product, and repeating the steps.
Example 2:
the supercritical foaming equipment and the foaming process that this embodiment provided refer to fig. 2, and further, conveniently collect water, place platform 19 and be network structure, be equipped with funnel collection passageway 26 below placing platform 19, be equipped with filter screen 27 below funnel collection passageway 26, be equipped with reservoir 39 below filter screen 27, the output connection of reservoir 39 has water pump 28, water pump 28's the other end is connected with main water pipe 30, main water pipe 30 is soft material, main water pipe 30 connects each shower nozzle 21, is connected with water inlet 29 on reservoir 39, through the design of above-mentioned structure, realizes the efficiency that the circulation in whole water route was recycled.
Example 3:
the supercritical foaming equipment that this embodiment provided, refer to fig. 3, further, improve cooling effect, be connected with heat exchanger 31 at the lower extreme of funnel collection passageway 26, heat exchanger 31's water inlet 29 is connected with the lower extreme of funnel collection passageway 26, and heat exchanger 31's delivery port is connected with water storage bin 39, and heat exchanger 31's refrigerant import is used for getting into the refrigerant, and heat exchanger 31's refrigerant export is used for discharging the hot refrigerant of becoming after the heat exchange, through above-mentioned structural design, can realize carrying out the heat exchange to the hot water after the cooling, improves the later stage to hot water's cooling effect.
Example 4:
the supercritical foaming equipment that this embodiment provided, refer to fig. 4, further, make it be suitable for different product model demands, the piston rod of second cylinder 6 stretches into reation kettle 1 in and is connected with operation locating plate 32, mould 7 passes through screw detachable to be fixed on operation locating plate 32 on the shoes, through above-mentioned structural design, mould 7 on the shoes is dismantled in convenient later stage, realizes can changing the size of mould 7 on the shoes as required, makes it can be suitable for different product model demands.
Example 5:
referring to fig. 5, further, for convenience of operation, a piston rod of the second cylinder 6 extends into the reaction kettle 1 and is connected to a horizontal support 40, a horizontally disposed third cylinder 41 is disposed at a side of the horizontal support 40, a positioning plate 42 is connected to a piston rod of the third cylinder 41, a slide bar 43 is disposed above the positioning plate 42, a slide bar moving groove 44 matched with the slide bar 43 is disposed on the horizontal support 40, a first boss 46 is disposed at a right side of a lower surface of the positioning plate 42, a first inner groove 50 is disposed at a left side of the lower surface of the positioning plate 42, a second electromagnet 48 is disposed in the first inner groove 50, a left side of an upper surface of the operation positioning plate 42 is hinged in the first boss 46 through a hinge shaft 47, a right side of the upper surface of the operation positioning plate 42 is provided with a second patch 49 matched with and protruding from the second electromagnet 48, a shaft motor 45 is linked to the hinge shaft 47.
When the upper shoe mold 7 needs to be disassembled at a later stage, the second air cylinder 6 is driven to move downwards, then the side sealing door 14 is opened, then the third air cylinder 41 is driven to push the positioning plate 42 to move horizontally, the cooling chamber 12 is sent into, then the second electromagnet 48 is driven to be powered off, then the shaft motor 45 is driven to drive the hinge shaft 47 to rotate, the positioning plate 42 is operated to rotate to the position of the sealing door of the cooling chamber 12, and finally the upper shoe mold 7 is convenient for a user to disassemble.
Example 6:
the supercritical foaming equipment that this embodiment provided, refer to fig. 6, further, improve sealed effect, be equipped with first sealing washer 33 in the junction of first cylinder 4 and reation kettle 1, first sealing washer 33 is sucker structure, and the right side of first sealing washer 33 is equipped with extension ring 34, extension ring 34 inserts reation kettle 1 side.
Further, improve sealed effect, the lower extreme of sealing door 14 with place the laminating of platform 19, be equipped with second sealing washer 35 in the laminating department of placing platform 19 and sealing door 14, improve sealed effect through above-mentioned structural design.
Example 7:
the supercritical foaming equipment that this embodiment provided, refer to fig. 7, further, the operation of being convenient for is equipped with the electro-magnet 37 that takes magnetism after getting electrified in the right side of first push pedal 5, is equipped with in the left side of lower shoes mould 3 with electro-magnet 37 complex inhale magnet 36, through setting up electro-magnet 37 and inhale magnet 36, when can realizing the compound die, to the location locking effect of lower shoes mould 3, avoid appearing the problem of compound die failure because lower shoes mould 3 deviation.
Example 8:
the supercritical foaming equipment that this embodiment provided, refer to fig. 8, further, the location of being convenient for avoids the compound die failure, is equipped with the positioning sensor 38 that is used for fixing a position to shoes lower mould 3 on mould 7 on shoes, can further improve the upper and lower alignment effect of mould 7 and shoes lower mould 3 on the shoes through setting up positioning sensor 38, improves the compound die effect, avoids the compound die failure.
According to the invention, after the lower shoe mold and the upper shoe mold which are placed in the reaction kettle are assembled, the internal blank is foamed in the lower shoe mold and the upper shoe mold through a supercritical foaming process, in the pressure relief process of the reaction kettle, because the pressures in the reaction kettle and the shoe mold are unbalanced, the blank starts to foam in the lower shoe mold and the upper shoe mold, when the pressure relief of the reaction kettle is finished, air in the reaction kettle is pumped out through a vacuumizing device, so that the interior of the kettle is in a state between rough vacuum and moderate vacuum, the foaming blank in the lower shoe mold and the upper shoe mold can be more tightly attached to the mold cavity, then the pressure relief is carried out again, the shoe mold is taken out, and the complete shoe shape and lines are obtained after the foaming blank is rapidly cooled through a cooling chamber, so that the process time of the outsole of the traditional EVA cold and hot pressing shoe is finally.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A supercritical foaming equipment, includes reation kettle, its characterized in that: the shoe-making machine is characterized in that an operation table is arranged in the reaction kettle, a lower shoe mold is placed in the operation table, a first cylinder is arranged on the left side of the reaction kettle, a piston rod of the first cylinder penetrates through the reaction kettle and then is connected with a first push plate, the first push plate and the lower shoe mold are arranged on the same horizontal plane, a second cylinder is arranged above the reaction kettle, a piston rod of the second cylinder extends into the reaction kettle and is connected with an upper shoe mold, the upper shoe mold is positioned right above the lower shoe mold, a shoe mold cavity is arranged in the lower shoe mold and the upper shoe mold, a shoe pad foaming cavity is formed after the two shoe mold cavities are spliced with each other, a vacuumizing device, a pressure relief opening and an air inlet are arranged above the reaction kettle and are communicated with the inside of the reaction kettle, a cooling chamber communicated with the inside of the reaction kettle is connected on the right side of the reaction kettle, a window is arranged at the communication, a third lifting cylinder for driving the sealing door to ascend to open the window and descend to close the window is connected above the sealing door, breathable accessories are integrally formed in the lower shoe mold and the upper shoe mold, each breathable accessory comprises a main pipeline, more than one branch pipeline is communicated with the main pipeline, the other end of each branch pipeline is communicated with a shoe mold cavity in the corresponding lower shoe mold or the corresponding upper shoe mold, one end of each main pipeline extends out of the corresponding lower shoe mold or the corresponding upper shoe mold and is connected with a valve, a placing table horizontally flush with the operating table is arranged in the cooling chamber, a turntable is arranged above the placing table, nozzles are annularly distributed on the turntable, a first motor rotatably connected with the turntable is arranged above the cooling chamber, a sealing cover door is hinged to the right side of the cooling chamber, and a grabbing and pushing mechanism capable of extending into the cooling chamber is arranged at the position, corresponding to the sealing cover door, on the right side of the cooling chamber, the left side of the operating platform is provided with a lower shoe mold positioning plate.
2. The supercritical foaming apparatus according to claim 1, wherein: the utility model discloses a water storage device, including placing the platform, place the platform and be network structure, be equipped with funnel collection passageway in the below of placing the platform, collect the below of passageway at the funnel and be equipped with the filter screen, be equipped with the water storage storehouse in the below of filter screen, the output connection in water storage storehouse has the water pump, the other end of water pump is connected with main water pipe, main water pipe is soft material, each shower nozzle of main water piping connection is connected with the water inlet on the water storage storehouse.
3. A supercritical foaming apparatus according to claim 2 wherein: the lower end of the funnel collecting channel is connected with a heat exchanger, the water inlet of the heat exchanger is connected with the lower end of the funnel collecting channel, the water outlet of the heat exchanger is connected with the water storage bin, the refrigerant inlet of the heat exchanger is used for entering a refrigerant, and the refrigerant outlet of the heat exchanger is used for discharging the refrigerant which is changed into heat after heat exchange.
4. A supercritical foaming apparatus according to claim 1 or 2 or 3 wherein: and a piston rod of the second cylinder extends into the reaction kettle and is connected with an operation positioning plate, and the shoe upper die is detachably fixed on the operation positioning plate through a screw.
5. The supercritical foaming apparatus according to claim 4, wherein: the piston rod of second cylinder stretches into in the reation kettle and is connected with the horizontal stand, is equipped with the third cylinder that the level was placed at the side of horizontal stand, be connected with the locating plate on the piston rod of third cylinder, the top of locating plate is equipped with the draw runner, be equipped with on the horizontal stand with draw runner complex draw runner shifting chute, be equipped with first boss on the right side of locating plate lower surface, be equipped with first inner groovy in the left side of locating plate lower surface, be equipped with the second electro-magnet in first inner groovy, the left side of operation locating plate upper surface articulate in first boss through the articulated shaft, the right side of operation locating plate upper surface through with the cooperation of second electro-magnet and bellied second paster, the articulated shaft articulates there is the axle motor.
6. A supercritical foaming apparatus according to claim 1 or 2 or 3 wherein: be equipped with first sealing washer in the junction of first cylinder and reation kettle, first sealing washer is sucker structure, and the right side of first sealing washer is equipped with the extension ring, the extension ring inserts the reation kettle side.
7. A supercritical foaming apparatus according to claim 1 or 2 wherein: the lower extreme of sealing door with place the laminating of platform, be equipped with the second sealing washer in the laminating department of placing platform and sealing door.
8. A supercritical foaming apparatus according to claim 1 or 2 or 3 wherein: an electromagnet which is electrified and then has magnetism is arranged in the right side of the first push plate, and a magnet-absorbing body which is matched with the electromagnet is arranged on the left side of the lower shoe mold.
9. A supercritical foaming apparatus according to claim 1 or 2 or 3 wherein: and a positioning sensor for positioning the position of the lower shoe mold is arranged on the upper shoe mold.
10. A foaming process of a supercritical foaming apparatus comprising using a supercritical foaming apparatus according to claim 1, characterized in that: the method specifically comprises the following steps:
s1, firstly processing a mold, printing a ventilation accessory by using a 3D printing technology, placing the ventilation accessory in the mold for injection molding the upper shoe mold and the lower shoe mold, integrally injection molding the upper shoe mold and the lower shoe mold to form a complete upper shoe mold and a complete lower shoe mold, and then installing the upper shoe mold at a corresponding position;
s2, extruding and granulating the blank through an extruder according to the preset proportion requirement, putting the extruded blank into a shoe mold cavity of a lower shoe mold, opening a sealing cover door and a sealing door, conveying the lower shoe mold into a corresponding operation platform below the reaction kettle, and positioning the initial position through a lower shoe mold positioning plate;
s3, closing the sealing cover door and the sealing door;
s4, driving a second air cylinder to work, pressing down the upper shoe mold to be matched with the lower shoe mold for mold closing, closing a valve, and realizing foaming of the blank inside the closed mold through the processes of temperature control, pressurization, pressure maintaining and primary pressure relief of the inside of the reaction kettle in sequence;
s5, opening a valve while foaming the blank in the shoe mold, and discharging the air pressure in the shoe mold through the air-permeable accessory;
s5, starting a vacuumizing device to pump out air in the kettle body, so that the foaming material in the shoe mold is more tightly attached to the whole mold cavity;
s6, releasing pressure again to restore the kettle to normal pressure, resetting the upper shoe mold, separating the lower shoe mold, starting the first cylinder, opening the sealing door, pushing the lower shoe mold into the cooling chamber, closing the sealing door, starting the spray head and the first motor, cooling the product, rapidly cooling and shaping to obtain shoe shapes and lines, cooling, opening the sealing door, taking out the product, and repeating the steps.
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| CN201911302510.3A CN111098437A (en) | 2019-12-17 | 2019-12-17 | Supercritical foaming equipment and foaming process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193754A (en) * | 2021-10-19 | 2022-03-18 | 晋江国盛新材料科技有限公司 | Forming process of supercritical foaming environment-friendly shoe material with customized surface grains |
| CN114851463A (en) * | 2022-05-09 | 2022-08-05 | 东莞兆阳兴业塑胶制品有限公司 | Supercritical foaming equipment for aviation foaming material |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070231491A1 (en) * | 2006-03-29 | 2007-10-04 | Lambert William P | System and method for printing a pattern on footwear |
| TW201313435A (en) * | 2011-09-28 | 2013-04-01 | sheng-ci Xu | Polymer foaming processing method and foaming device for implementing the same |
| CN203282653U (en) * | 2013-04-09 | 2013-11-13 | 青岛科技大学 | Polymer mould pressing foaming device assisted by supercritical fluid |
| CN203650810U (en) * | 2014-01-07 | 2014-06-18 | 泰安汉威化工有限公司 | Material cooling device for producing polyurethane mixed material |
| CN104097288A (en) * | 2013-04-09 | 2014-10-15 | 青岛科技大学 | Supercritical fluid-assisted polymer mould foaming apparatus |
| CN108481644A (en) * | 2018-03-07 | 2018-09-04 | 刘国云 | A kind of die arrangement for plastic products |
| CN208084792U (en) * | 2018-03-03 | 2018-11-13 | 罗松 | A kind of vertical type foamed products moulding processing machine |
| CN109776846A (en) * | 2019-01-22 | 2019-05-21 | 东莞市超伟复合材料制品有限公司 | A kind of composite high-elastic material and its mould inner air vent foaming forming technique |
| CN209191147U (en) * | 2018-12-14 | 2019-08-02 | 吕谨慎 | Captation and cooling recirculation system for Contiuum type second time of foaming machine |
| CN110181737A (en) * | 2019-05-20 | 2019-08-30 | 上海方科汽车部件有限公司 | A kind of steering wheel vacuum foam technique |
| CN110539440A (en) * | 2019-09-02 | 2019-12-06 | 厦门市锋特新材料科技有限公司 | Foaming process of EVA injection molding piece |
-
2019
- 2019-12-17 CN CN201911302510.3A patent/CN111098437A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070231491A1 (en) * | 2006-03-29 | 2007-10-04 | Lambert William P | System and method for printing a pattern on footwear |
| TW201313435A (en) * | 2011-09-28 | 2013-04-01 | sheng-ci Xu | Polymer foaming processing method and foaming device for implementing the same |
| CN203282653U (en) * | 2013-04-09 | 2013-11-13 | 青岛科技大学 | Polymer mould pressing foaming device assisted by supercritical fluid |
| CN104097288A (en) * | 2013-04-09 | 2014-10-15 | 青岛科技大学 | Supercritical fluid-assisted polymer mould foaming apparatus |
| CN203650810U (en) * | 2014-01-07 | 2014-06-18 | 泰安汉威化工有限公司 | Material cooling device for producing polyurethane mixed material |
| CN208084792U (en) * | 2018-03-03 | 2018-11-13 | 罗松 | A kind of vertical type foamed products moulding processing machine |
| CN108481644A (en) * | 2018-03-07 | 2018-09-04 | 刘国云 | A kind of die arrangement for plastic products |
| CN209191147U (en) * | 2018-12-14 | 2019-08-02 | 吕谨慎 | Captation and cooling recirculation system for Contiuum type second time of foaming machine |
| CN109776846A (en) * | 2019-01-22 | 2019-05-21 | 东莞市超伟复合材料制品有限公司 | A kind of composite high-elastic material and its mould inner air vent foaming forming technique |
| CN110181737A (en) * | 2019-05-20 | 2019-08-30 | 上海方科汽车部件有限公司 | A kind of steering wheel vacuum foam technique |
| CN110539440A (en) * | 2019-09-02 | 2019-12-06 | 厦门市锋特新材料科技有限公司 | Foaming process of EVA injection molding piece |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193754A (en) * | 2021-10-19 | 2022-03-18 | 晋江国盛新材料科技有限公司 | Forming process of supercritical foaming environment-friendly shoe material with customized surface grains |
| CN114851463A (en) * | 2022-05-09 | 2022-08-05 | 东莞兆阳兴业塑胶制品有限公司 | Supercritical foaming equipment for aviation foaming material |
| CN114851463B (en) * | 2022-05-09 | 2024-05-24 | 东莞兆阳兴业塑胶制品有限公司 | Supercritical foaming equipment for aviation foaming material |
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Application publication date: 20200505 |