CN113580406A - Sound insulation pad EVA foaming material, production process and production equipment - Google Patents

Sound insulation pad EVA foaming material, production process and production equipment Download PDF

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Publication number
CN113580406A
CN113580406A CN202110878523.6A CN202110878523A CN113580406A CN 113580406 A CN113580406 A CN 113580406A CN 202110878523 A CN202110878523 A CN 202110878523A CN 113580406 A CN113580406 A CN 113580406A
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China
Prior art keywords
sleeve
fixedly connected
foaming material
eva foaming
sound insulation
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CN202110878523.6A
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CN113580406B (en
Inventor
张剑
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Suzhou Kulingke Polymer New Material Co ltd
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Suzhou Kulingke Polymer New Material Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/02Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/06Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
    • B29B7/10Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
    • B29B7/18Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08Cleaning containers, e.g. tanks
    • B08B9/093Cleaning containers, e.g. tanks by the force of jets or sprays
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00Conditioning or physical treatment of the material to be shaped
    • B29B13/02Conditioning or physical treatment of the material to be shaped by heating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/02Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/22Component parts, details or accessories; Auxiliary operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/80Component parts, details or accessories; Auxiliary operations
    • B29B7/82Heating or cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08Insulating elements, e.g. for sound insulation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066Use of inorganic compounding ingredients
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02Characterised 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
    • C08J2323/04Homopolymers or copolymers of ethene
    • C08J2323/08Copolymers of ethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2227Oxides; Hydroxides of metals of aluminium
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Primary Cells (AREA)

Abstract

The invention discloses an EVA foaming material for a sound insulation pad, a production process and production equipment, relates to the technical field of sound insulation pads, and provides the following scheme aiming at solving the problem of uneven melting of the existing EVA foaming material particles.

Description

Sound insulation pad EVA foaming material, production process and production equipment
Technical Field
The invention relates to the technical field of sound insulation pads, in particular to an EVA foaming material for a sound insulation pad, a production process and production equipment.
Background
The automobile sound and heat insulation pad is generally arranged in an engine compartment and a passenger compartment, plays roles of sound absorption, sound insulation and heat insulation, and also provides challenging requirements for various part supporting enterprises in the era of pursuing high performance, high quality, low price, safety and environmental protection in the modern automobile industry so as to meet the requirements of a host factory on performance, quality and cost.
General sound insulation pad is in production, and one of them step needs to melt EVA foaming material granule, and current device that melts inhomogeneously makes mix solid tiny particle in the middle of the liquid easily for when the shaping is pour to the follow-up, sound insulation pad each department gives sound insulation the effect inconsistent, makes the finished product sound insulation effect of producing not good.
Disclosure of Invention
The EVA foaming material for the sound insulation pad, the production process and the production equipment provided by the invention solve the problem of uneven melting of EVA foaming material particles.
In order to achieve the purpose, the invention adopts the following technical scheme:
the foamed EVA material for sound isolating pad includes EVA 20-30 weight portions, alumina 50-80 weight portions and additive 30-40 weight portions.
Preferably, the alumina particle size is 1-20 microns.
A production process of an EVA foaming material of a sound insulation pad comprises the following steps:
s1: filtration and screening
Filtering EVA foaming material particles through a filtering device to remove impurities in the EVA foaming material particles;
s2: cleaning and drying
Cleaning the EVA foaming material treated by the S1 to remove dust adhered to the surface, and pouring the EVA foaming material into a dryer to remove the water film on the surface of the EVA foaming material;
s3: melting by heating
Pouring the EVA foaming material processed by the S2 into a melting device for melting, and ensuring that no obvious solid particles exist after melting;
s4: pouring and forming
And pouring the melted liquid of the S3 into a mould for rapid forming, and then cutting the edge of the finished product by a water knife to remove the redundant part.
The utility model provides a give sound insulation and fill up production facility of EVA foaming material, is including melting the case, melt the upside fixedly connected with driving motor of case, driving motor's output fixedly connected with transfer line, the lower extreme fixedly connected with of transfer line collects the cover, the downside that collects the cover is connected with the mechanism that draws water, the one side of collecting the cover is rotated and has been cup jointed and rotate the cover, the one end fixedly connected with slewing mechanism who rotates the cover, the other end that rotates the cover is provided with drive mechanism, it is connected with the sleeve pipe of being connected with drive mechanism to rotate to sheathe in, fixedly connected with heating mechanism and water spray mechanism on the sleeve pipe
Preferably, the water pumping mechanism comprises a connecting pipe which is rotatably sleeved with the lower end of the collecting sleeve, and the lower end of the connecting pipe is fixedly connected with a water pump which is fixedly connected with the bottom of the melting tank.
Preferably, the rotating mechanism comprises a rotating gear fixedly sleeved with one end of the rotating sleeve, and a first gear ring fixedly connected with the inner side wall of the melting box is meshed with the lower side of the rotating gear.
Preferably, drive mechanism includes the transmission shaft of being connected with the rotation cover inboard rotation, the fixed cover has been connect first bevel gear on the transmission shaft, the meshing of one side of first bevel gear has the second bevel gear who cup joints with the sleeve pipe is fixed, the fixed cover of one end of transmission shaft has been connected drive gear, the meshing of drive gear's the outside has intermediate gear, the meshing of intermediate gear's the outside has and collects set fixed connection's second ring gear, intermediate gear's centre is rotated and is cup jointed and collect the fixed disk that set rotation is connected, one side and the rotation of fixed disk cover fixed connection.
Preferably, the water spraying mechanism comprises a water spraying pipe fixedly communicated with the sleeve, a plurality of water spraying holes are formed in the water spraying pipe, a sliding support is slidably connected to the inner side of the water spraying pipe, a plurality of plugging blocks matched with the water spraying holes are fixedly connected to the outer side of the sliding support, and a spring fixedly connected to the inner side of the water spraying pipe is fixedly connected to one end of the sliding support.
Preferably, the one end of rotating the cover is seted up with the hole of permeating water that collects the cover intercommunication, fixed cover on the transfer line have connect with melt the case and rotate the rolling disc that cup joints, melt the upper end fixedly connected with inlet pipe of case, melt the bottom fixedly connected with discharging pipe of case, the one end fixedly connected with pump of discharging pipe.
The invention has the beneficial effects that:
1. the transmission rod is driven to rotate by the driving motor, so that the transmission rod drives the collecting sleeve to rotate, the rotating sleeves on two sides of the collecting sleeve rotate, the rotating gears at one end of the rotating sleeves are meshed with the first gear ring on the inner side of the melting box, the rotating sleeves can rotate and rotate simultaneously, a sleeve on the rotating sleeves can rotate to play a role of quickly and uniformly stirring, the rotating sleeves rotate to drive the intermediate gears to rotate, the intermediate gears drive the transmission gears to rotate under the action of the second gear ring, the transmission gears drive the transmission shafts to rotate, so that the first bevel gears on the transmission shafts rotate, the first bevel gears drive the second bevel gears to rotate, the second bevel gears drive the sleeve to rotate, the sleeve rotates, heating wires on the sleeve rotate with three degrees of freedom, particles in the melting box can be fully melted, and the melting efficiency is improved, the granule of melting incasement portion every time all can heat for melt more evenly.
2. Can make water take out the connecting pipe the inside through the water pump, enter into through the connecting pipe and collect the cover the inside, make water enter into through the hole of permeating water that collects the cover inboard and rotate the cover the inside, make water flow into the sleeve pipe the inside through rotating the cover, make sliding bracket slide through the pressure of water, drive the spring compression, make the shutoff piece in the sliding bracket outside break away from with the hole for water spraying, make hole for spraying water and spray pipe switch-on, just can make the water of spray pipe the inside pass through the hole for spraying water blowout, then driving motor drives the spray pipe and removes, make and melt the incasement lateral wall and wash, the abluent effect and the efficiency are improved.
Drawings
FIG. 1 is a schematic sectional view of a front view of an EVA foaming material for a sound insulation pad, a production process and production equipment provided by the invention;
FIG. 2 is a schematic view of a part of a cross section of an EVA foaming material for a sound insulation pad, a production process and production equipment provided by the invention;
FIG. 3 is an enlarged schematic view of the EVA foaming material for the sound insulation pad, the production process and the production equipment provided by the invention at the A position;
FIG. 4 is an enlarged schematic view of the EVA foaming material for the sound insulation pad, the production process and the production equipment provided by the invention at the B position;
FIG. 5 is an enlarged schematic view of the sound insulation pad EVA foaming material, production process and production equipment provided by the invention at position C;
FIG. 6 is an enlarged schematic view of the sound insulation pad EVA foaming material, the production process and the production equipment provided by the invention at the position D.
Reference numbers in the figures: 1. a melting box; 2. a rotating gear; 3. a first ring gear; 4. rotating the sleeve; 5. A material pumping pump; 6. a water pump; 7. a connecting pipe; 8. collecting a sleeve; 9. a sleeve; 10. a drive motor; 11. a transmission rod; 12. rotating the disc; 13. heating wires; 14. a sliding support; 15. a drive shaft; 16. a first bevel gear; 17. a second bevel gear; 18. a water spray pipe; 19. a water spray hole; 20. a spring; 21. a plugging block; 22. a second ring gear; 23. an intermediate gear; 24. water permeable holes; 25. a transmission gear; 26. and (7) fixing the disc.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, the sound insulation pad EVA foaming material comprises, by weight, 20-30 parts of EVA, 50-80 parts of alumina and 30-40 parts of an additive.
The particle size of the alumina is 1-20 microns.
A production process of an EVA foaming material of a sound insulation pad comprises the following steps:
s1: filtration and screening
Filtering EVA foaming material particles through a filtering device to remove impurities in the EVA foaming material particles;
s2: cleaning and drying
Cleaning the EVA foaming material treated by the S1 to remove dust adhered to the surface, and pouring the EVA foaming material into a dryer to remove the water film on the surface of the EVA foaming material;
s3: melting by heating
Pouring the EVA foaming material processed by the S2 into a melting device for melting, and ensuring that no obvious solid particles exist after melting;
s4: pouring and forming
And pouring the melted liquid of the S3 into a mould for rapid forming, and then cutting the edge of the finished product by a water knife to remove the redundant part.
A production device of EVA foaming material of sound insulation pad, the upside of melting box 1 is fixedly connected with driving motor 10, the output end of driving motor 10 is fixedly connected with transmission rod 11, the lower end of transmission rod 11 is fixedly connected with collection sleeve 8, the lower side of collection sleeve 8 is connected with water pumping mechanism, one side of collection sleeve 8 is rotatably sleeved with rotation sleeve 4, one end of rotation sleeve 4 is fixedly connected with rotation mechanism, the other end of rotation sleeve 4 is provided with transmission mechanism, the rotation sleeve 4 is rotatably connected with sleeve 9 connected with transmission mechanism, the sleeve 9 is fixedly connected with heating mechanism and water spraying mechanism, the transmission rod 11 is driven by driving motor 10 to rotate, the transmission rod 11 can drive collection sleeve 8 to rotate, so that the rotation sleeve 4 at two sides of collection sleeve 8 rotates, through the engagement of rotation gear 2 at one end of rotation sleeve 4 and first gear ring 3 at the inner side of melting box 1, the rotating sleeve 4 can rotate and rotate simultaneously, the sleeve 9 on the rotating sleeve 4 can rotate to play a role of rapid and uniform stirring, the rotating sleeve 4 rotates to drive the intermediate gear 23 to rotate, the intermediate gear 23 drives the transmission gear 25 to rotate under the action of the second gear ring 22, the transmission gear 25 drives the transmission shaft 15 to rotate, the first bevel gear 16 on the transmission shaft 5 rotates, the first bevel gear 16 drives the second bevel gear 17 to rotate, the second bevel gear 17 drives the sleeve 9 to rotate, the sleeve 9 rotates, the heating wire 13 on the sleeve 9 rotates with three degrees of freedom, particles in the melting box 1 can be fully melted, the melting efficiency is improved, each time of particles in the melting box 1 can be heated, the melting is more uniform, and water can be pumped into the connecting pipe 7 through the water pump 6, enter into through connecting pipe 7 and collect 8 the inside of cover, make water enter into through the hole 24 of permeating water that collects 8 inboards of cover and rotate the cover 4 the inside, make water flow into the sleeve pipe 9 the inside through rotating cover 4, make sliding bracket 14 slide through the pressure of water, drive the compression of spring 20, make the shutoff piece 21 in the sliding bracket 14 outside break away from with hole for water spraying 19, make hole for water spraying 19 and 18 switch-ons of spray pipe, just can make the water of 18 the inside of spray pipe pass through hole for water spraying 19 blowout, then driving motor 10 drives the 18 removals of spray pipe, make and melt case 1 inside wall and wash, improve abluent effect and efficiency.
The pumping mechanism comprises a connecting pipe 7 which is rotatably sleeved with the lower end of the collecting sleeve 8, and the lower end of the connecting pipe 7 is fixedly connected with a water pump 6 which is fixedly connected with the bottom of the melting box 1.
The rotating mechanism comprises a rotating gear 2 fixedly sleeved with one end of a rotating sleeve 4, and a first gear ring 3 fixedly connected with the inner side wall of the melting box 1 is meshed with the lower side of the rotating gear 2.
The transmission mechanism comprises a transmission shaft 15 which is rotatably connected with the inner side of the rotating sleeve 4, a first bevel gear 16 is fixedly sleeved on the transmission shaft 15, a second bevel gear 17 which is fixedly sleeved with the sleeve 9 is meshed on one side of the first bevel gear 16, a transmission gear 25 is fixedly sleeved at one end of the transmission shaft 15, an intermediate gear 23 is meshed on the outer side of the transmission gear 25, a second ring gear 22 which is fixedly connected with the collecting sleeve 8 is meshed on the outer side of the intermediate gear 23, a fixed disc 26 which is rotatably connected with the collecting sleeve 8 is sleeved in the middle of the intermediate gear 23, and one side of the fixed disc 26 is fixedly connected with the rotating sleeve 4.
The heating mechanism comprises a heating wire 13 fixedly connected with the outer side of the sleeve 9, and the heating wire 13 is electrically connected with a power supply.
The water spraying mechanism comprises a water spraying pipe 18 fixedly communicated with the sleeve 9, a plurality of water spraying holes 19 are formed in the water spraying pipe 18, a sliding support 14 is connected to the inner side of the water spraying pipe 18 in a sliding mode, a plurality of plugging blocks 21 matched with the water spraying holes 19 are fixedly connected to the outer side of the sliding support 14, and a spring 20 fixedly connected with the inner side of the water spraying pipe 18 is fixedly connected to one end of the sliding support 14.
The one end of rotating sleeve 4 is seted up with gathering the hole 24 of permeating water that overlaps 8 intercommunication, and fixed the cup jointing has rotated the rolling disc 12 that cup joints with melting case 1 on the transfer line 11, melts the upper end fixedly connected with inlet pipe of case 1, melts the bottom fixedly connected with discharging pipe of case 1, the one end fixedly connected with pump 5 of discharging pipe.
The working principle is as follows: the driving motor 10 drives the driving rod 11 to rotate, so that the driving rod 11 drives the collecting sleeve 8 to rotate, the rotating sleeves 4 on two sides of the collecting sleeve 8 rotate, the rotating gear 2 at one end of the rotating sleeve 4 is meshed with the first gear ring 3 on the inner side of the melting box 1, the rotating sleeve 4 can rotate and rotate simultaneously, the sleeve 9 on the rotating sleeve 4 can rotate to play a role of rapid and uniform stirring, the rotating sleeve 4 rotates to drive the intermediate gear 23 to rotate, the intermediate gear 23 drives the transmission gear 25 to rotate under the action of the second gear ring 22, the transmission gear 25 drives the transmission shaft 15 to rotate, the first bevel gear 16 on the transmission shaft 5 rotates, the first bevel gear 16 drives the second bevel gear 17 to rotate, the second bevel gear 17 drives the sleeve 9 to rotate, the sleeve 9 rotates, and the heating wires 13 on the sleeve 9 rotate with three degrees of freedom, can fully melt the particles in the melting box 1, improves the melting efficiency, enables the particles in the melting box 1 to be heated each time, enables the melting to be more uniform, the water can be pumped into the connecting pipe 7 through the water pump 6 and enters the collecting sleeve 8 through the connecting pipe 7, so that the water enters the rotating sleeve 4 through the water permeable holes 24 on the inner side of the collecting sleeve 8, water flows into the sleeve 9 by rotating the sleeve 4, the sliding bracket 14 slides by the pressure of the water, the spring 20 is compressed, the blocking block 21 outside the sliding support 14 is separated from the water spraying hole 19, the water spraying hole 19 is communicated with the water spraying pipe 18, the water in the water spraying pipe 18 can be sprayed out through the water spraying hole 19, then the driving motor 10 drives the spray pipe 18 to move, so that the inner side wall of the melting box 1 is cleaned, and the cleaning effect and efficiency are improved.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. The EVA foaming material for the sound insulation pad is characterized by comprising 20-30 parts by weight of EVA, 50-80 parts by weight of alumina and 30-40 parts by weight of an additive.
2. The EVA foam material for sound insulation pad according to claim 1, wherein the particle size of the alumina is 1-20 μm.
3. The production process of the EVA foaming material for the sound insulation pad is characterized by comprising the following steps of:
s1: filtration and screening
Filtering EVA foaming material particles through a filtering device to remove impurities in the EVA foaming material particles;
s2: cleaning and drying
Cleaning the EVA foaming material treated by the S1 to remove dust adhered to the surface, and pouring the EVA foaming material into a dryer to remove the water film on the surface of the EVA foaming material;
s3: melting by heating
Pouring the EVA foaming material processed by the S2 into a melting device for melting, and ensuring that no obvious solid particles exist after melting;
s4: pouring and forming
And pouring the melted liquid of the S3 into a mould for rapid forming, and then cutting the edge of the finished product by a water knife to remove the excessive part.
4. The production equipment of the EVA foaming material for the sound insulation pad according to claim 3 comprises a melting box (1), and is characterized in that a driving motor (10) is fixedly connected to the upper side of the melting box (1), a transmission rod (11) is fixedly connected to the output end of the driving motor (10), a collecting sleeve (8) is fixedly connected to the lower end of the transmission rod (11), a water pumping mechanism is connected to the lower side of the collecting sleeve (8), a rotating sleeve (4) is rotatably sleeved on one side of the collecting sleeve (8), a rotating mechanism is fixedly connected to one end of the rotating sleeve (4), a transmission mechanism is arranged at the other end of the rotating sleeve (4), a sleeve (9) connected with the transmission mechanism is rotatably connected to the rotating sleeve (4), and a heating mechanism and a water spraying mechanism are fixedly connected to the sleeve (9).
5. The EVA foaming material, the production process and the production equipment of the sound insulation pad according to claim 4, wherein the water pumping mechanism comprises a connecting pipe (7) rotatably sleeved with the lower end of the collecting sleeve (8), and the lower end of the connecting pipe (7) is fixedly connected with a water pump (6) fixedly connected with the bottom of the melting box (1).
6. The EVA foaming material, production process and production equipment of the sound insulation pad of claim 4, wherein the rotating mechanism comprises a rotating gear (2) fixedly sleeved with one end of a rotating sleeve (4), and a first gear ring (3) fixedly connected with the inner side wall of the melting box (1) is meshed with the lower side of the rotating gear (2).
7. The EVA foaming material for sound insulation pad, the production process and the production equipment according to claim 4, it is characterized in that the transmission mechanism comprises a transmission shaft (15) which is rotationally connected with the inner side of the rotating sleeve (4), a first bevel gear (16) is fixedly sleeved on the transmission shaft (15), a second bevel gear (17) fixedly sleeved with the sleeve (9) is meshed at one side of the first bevel gear (16), one end of the transmission shaft (15) is fixedly sleeved with a transmission gear (25), the outer side of the transmission gear (25) is engaged with an intermediate gear (23), a second gear ring (22) fixedly connected with the collecting sleeve (8) is meshed at the outer side of the intermediate gear (23), the middle of the middle gear (23) is rotatably sleeved with a fixed disc (26) which is rotatably connected with the collecting sleeve (8), and one side of the fixed disc (26) is fixedly connected with the rotating sleeve (4).
8. The EVA foaming material, the production process and the production equipment for the sound insulation pad according to claim 4, wherein the heating mechanism comprises a heating wire (13) fixedly connected with the outer side of the sleeve (9), and the heating wire (13) is electrically connected with a power supply.
9. The EVA foaming material for the sound insulation pad, the production process and the production equipment according to claim 4 are characterized in that the water spraying mechanism comprises a water spraying pipe (18) fixedly communicated with the sleeve (9), a plurality of water spraying holes (19) are formed in the water spraying pipe (18), a sliding support (14) is slidably connected to the inner side of the water spraying pipe (18), a plurality of plugging blocks (21) matched with the water spraying holes (19) are fixedly connected to the outer side of the sliding support (14), and a spring (20) fixedly connected to the inner side of the water spraying pipe (18) is fixedly connected to one end of the sliding support (14).
10. The EVA foaming material, the production process and the production equipment of the sound insulation pad according to claim 4, wherein one end of the rotating sleeve (4) is provided with a water permeable hole (24) communicated with the collecting sleeve (8), the transmission rod (11) is fixedly sleeved with a rotating disc (12) rotatably sleeved with the melting box (1), the upper end of the melting box (1) is fixedly connected with a feeding pipe, the bottom of the melting box (1) is fixedly connected with a discharging pipe, and one end of the discharging pipe is fixedly connected with a material pumping pump (5).
CN202110878523.6A 2021-08-02 2021-08-02 Sound insulation pad EVA foaming material, production process and production equipment Active CN113580406B (en)

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CN202110878523.6A CN113580406B (en) 2021-08-02 2021-08-02 Sound insulation pad EVA foaming material, production process and production equipment

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CN111944110A (en) * 2020-08-30 2020-11-17 宁波耀众模塑科技有限公司 Polyurethane foaming product formula with good heat insulation effect
CN213440512U (en) * 2020-09-28 2021-06-15 云双实业(苏州)有限公司 Plastic granules hot melt plasticizing device
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TW200607636A (en) * 2004-08-24 2006-03-01 Pou Chen Corp Method for manufacturing a two-color and two-hardness sole using eva foaming
CN102398340A (en) * 2010-09-15 2012-04-04 张家港市亿利机械有限公司 Rotational precise molding machine
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