CN111873280A - Method for producing a coated rubber product and rubber product - Google Patents

Method for producing a coated rubber product and rubber product Download PDF

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Publication number
CN111873280A
CN111873280A CN202010657440.XA CN202010657440A CN111873280A CN 111873280 A CN111873280 A CN 111873280A CN 202010657440 A CN202010657440 A CN 202010657440A CN 111873280 A CN111873280 A CN 111873280A
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CN
China
Prior art keywords
rubber
mixing tank
stirring
coated
tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010657440.XA
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Chinese (zh)
Inventor
方勇
黄立志
程飞
徐涛
侯继康
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningguo Ruipu Seals Co ltd
Original Assignee
Ningguo Ruipu Seals Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningguo Ruipu Seals Co ltd filed Critical Ningguo Ruipu Seals Co ltd
Priority to CN202010657440.XA priority Critical patent/CN111873280A/en
Publication of CN111873280A publication Critical patent/CN111873280A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/003Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor characterised by the choice of material
    • 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
    • B29B13/10Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
    • 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
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/08Coating a former, core or other substrate by spraying or fluidisation, e.g. spraying powder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34Component parts, details or accessories; Auxiliary operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34Component parts, details or accessories; Auxiliary operations
    • B29C41/46Heating or cooling
    • 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
    • C08J11/00Recovery or working-up of waste materials
    • C08J11/04Recovery or working-up of waste materials of polymers
    • C08J11/10Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L21/00Compositions of unspecified rubbers
    • 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
    • C08J2317/00Characterised by the use of reclaimed rubber
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • 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

Abstract

The present invention discloses a method for manufacturing a coated rubber article, comprising the steps of: cleaning waste rubber generated in the production process of rubber products, removing impurities, putting the waste rubber into a crusher for crushing, mixing crushed rubber powder with light calcium carbonate, and filtering to obtain rubber powder according with the process; adding rubber powder into a mixing tank, adding liquid paraffin and water, sealing a feeding port 17 of the mixing tank, starting a stirring mechanism at the temperature of 200-240 ℃ to stir for 80-90 minutes, and after desulfurization, obtaining desulfurized rubber, sequentially adding a De-link regenerant into the mixing tank, adding the mixture into a refiner to pass through for 5-10 times, and mixing and stirring reduced rubber and raw rubber obtained by tabletting for 60-70 minutes through the stirring mechanism to obtain a rubber product; the invention realizes the recycling of rubber products, greatly improves the use efficiency of the rubber products and greatly improves the production efficiency of the rubber products.

Description

Method for producing a coated rubber product and rubber product
Technical Field
The invention belongs to the technical field of rubber, and relates to a method for manufacturing a rubber product and the rubber product, in particular to a method for manufacturing a coated rubber product and the rubber product.
Background
Rubber products (rubber products) refer to activities for producing various rubber products from natural and synthetic rubbers, and also include rubber products regenerated from waste rubbers. The yield of synthetic rubber has greatly exceeded that of natural rubber, with styrene butadiene rubber being the largest.
In the prior art, rubber products are directly produced by adopting raw materials, but how to recycle waste rubber to produce recycled rubber products, a water-oil method is generally adopted to recycle and comprehensively utilize the waste rubber to produce regenerated rubber, and the method has the defects of high energy consumption, complex equipment, large investment scale, poor quality of the prepared regenerated rubber and non-uniformity; meanwhile, in the traditional process for producing rubber products, when the rubber products are stirred in the production process, a stirring shaft is usually adopted for stirring and mixing, and the stirring mode causes the stirring speed of the materials at the inner edge of the mixing tank to be poor and the stirring effect to be poor, so that a long time is required in the stirring process; in addition, the prepared rubber product is coated on the substrate and has low forming efficiency.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, rubber products are directly produced by adopting raw materials, but how to recycle waste rubber to produce recycled rubber products, a water-oil method is usually adopted to recycle and comprehensively utilize the waste rubber to produce regenerated rubber, and the method has the defects of high energy consumption, complex equipment, large investment scale, poor quality and non-uniformity of the prepared regenerated rubber; meanwhile, in the traditional process for producing rubber products, when the rubber products are stirred in the production process, a stirring shaft is usually adopted for stirring and mixing, and the stirring mode causes the stirring speed of the materials at the inner edge of the mixing tank to be poor and the stirring effect to be poor, so that a long time is required in the stirring process; in addition, the prepared rubber product is coated on a substrate to form the rubber product with relatively low forming efficiency, and a method for manufacturing the coated rubber product and the rubber product are provided.
The purpose of the invention can be realized by the following technical scheme:
a method for manufacturing a coated rubber article, comprising the steps of:
s1, cleaning waste rubber generated in the production process of rubber products, removing impurities, putting the waste rubber into a crusher for crushing, mixing crushed rubber powder with light calcium carbonate, and filtering to obtain rubber powder according with the process; adding rubber powder into a mixing tank, adding liquid paraffin and water, sealing a feeding port 17 of the mixing tank, starting a stirring mechanism at the temperature of 200-240 ℃ to stir for 80-90 minutes, and after desulfurization, obtaining desulfurized rubber, sequentially adding a De-link regenerant into the mixing tank, adding the mixture into a refiner to pass through for 5-10 times, and mixing and stirring reduced rubber and raw rubber obtained by tabletting for 60-70 minutes through the stirring mechanism to obtain a rubber product;
in the stirring process, a starting motor is started to work to drive a driving belt pulley to rotate, the driving belt pulley drives a driven belt pulley to rotate through a conveying belt, the driven belt pulley drives a stirring shaft to rotate, so that a stirring paddle on the stirring shaft stirs raw materials in the middle of a mixing tank, the stirring shaft drives a driving gear to rotate while rotating, the driving gear drives a gear ring to rotate through an intermediate gear, the rotating gear ring drives a side shaft to stir the raw materials on the side of the mixing tank, and meanwhile, a scraper on the side shaft scrapes the materials along the inner wall of the mixing tank;
s2, the mixed rubber product enters a transfer tank through a pump body along a flow channel of a stirring shaft along a communicating pipe, then a substrate to be coated is placed under a spray plate, the rubber product in the transfer tank is sprayed onto the surface of the substrate along a discharge pipe and the spray plate through a delivery pump, and then the rubber product on the surface of the substrate is coated;
s3, in transferring the base plate coated with the rubber product to the forming box, the circulating pump injects condensing medium into the condensing box through the circulating condensation inlet pipe, and cools the forming box, then the second hydraulic cylinder and the fan are started to work simultaneously, the second hydraulic cylinder drives the fan on the connecting plate to rotate along the limiting rotating rod, the fan blows the condensed gas on the condensing box to the base plate coated with the rubber product, and the rubber product is cooled and formed on the base plate.
Preferably, the mixing tank is positioned above the top surface of the base, the mixing tank is installed on a first guide plate, one side transfer tank of the mixing tank is provided with a pump body on the top surface of the transfer tank, the input end of the pump body is communicated with a communicating pipe, the output end of the pump body extends to the inner cavity of the transfer tank, the transfer tank is installed on a first guide plate, a second guide plate is arranged right below the first guide plate, the discharge end of the transfer tank is connected with a discharge pipe, the discharge end of the discharge pipe penetrates out of the second guide plate and is fixedly connected with the second guide plate, a material delivery pump is arranged on the discharge pipe and is installed on the second guide plate, the discharge end of the discharge pipe is connected with a spray plate, a guide rod is arranged on the top surface of the base, the first guide plate and the second guide plate are respectively sleeved on the guide rod in a sliding manner, a first hydraulic cylinder is installed on the base, and the output end of the, a base plate for spraying rubber products is arranged under the spraying plate, a support is arranged on one side of the base, and a forming box for cooling the rubber products is arranged on the support.
Preferably, be provided with rabbling mechanism in the blending tank, rabbling mechanism includes the truss, a pedestal, the charge door, driven pulley, drive pulley, the conveyer belt, including a motor, an end cap, a controller, and a cover plate, the (mixing) shaft, the driving medium, the stirring rake, the side shaft, the scraper blade, the top surface of blending tank is provided with the columniform installation section of thick bamboo, and be provided with the truss of U type on the top surface of blending tank, the middle part fixed mounting of truss has the base, it is provided with the (mixing) shaft to rotate on the base, the top cover of (mixing) shaft is equipped with driven pulley, driven pulley passes through the conveyer belt and is connected with drive pulley, drive pulley is connected with the output of motor, the motor is installed on the truss, the base is passed in proper order to the bottom of (mixing.
Preferably, a transmission part is arranged in the mounting cylinder, the output end of the transmission part is connected with a side shaft, a U-shaped scraper is arranged on the side shaft, the vertical part of the scraper is abutted against the inner wall of the mixing tank, and a stirring paddle is arranged on the side shaft.
Preferably, the transmission part includes ring gear, intermediate gear, driving gear, and the driving gear cover is established on the (mixing) shaft, and the annular array is provided with multiunit intermediate gear around the driving gear to be connected with the intermediate gear meshing, intermediate gear rotates and installs on the top surface of blending tank, and the outer wall of ring gear rotates with the inner wall of installation section of thick bamboo to be connected, and the internal tooth of ring gear is connected with the intermediate gear meshing, and the equidistant side shaft that is provided with multiunit on the bottom surface of ring gear.
Preferably, the stirring shaft is of a hollow structure and is provided with a flow channel, the stirring shaft is provided with a stirring paddle, the discharge end at the top of the stirring shaft is rotatably connected with the communicating pipe through a sealing bearing, and the mixing tank is a heating tank.
Preferably, rectangular through holes are respectively formed in the bottom parts of the two sides of the forming box, and a cooling mechanism is arranged in the forming box.
Preferably, the cooling mechanism comprises a second hydraulic cylinder, a circulating condensation inlet pipe, a circulating condensation outlet pipe, a condensation box, a limiting rotating rod, a sleeve, a connecting plate and a fan, wherein the condensation box is arranged on the top surface inside the forming box, the circulating condensation inlet pipe and the circulating condensation outlet pipe are respectively arranged on two sides of the top surface of the condensation box, the rectangular connecting plate is arranged under the condensation box, a plurality of groups of fans are arranged on the bottom surface of the connecting plate at equal intervals, the sleeve is arranged in the middle of the top surface of the connecting plate, the sleeve is rotatably sleeved on the limiting rotating rod, and two ends of the limiting rotating rod are respectively arranged on the inner wall of the; the top end of the second hydraulic cylinder is movably arranged on the bottom surface of the condensing box, and the bottom end of the second hydraulic cylinder is movably arranged on the top surface of the connecting plate and connected with the top surface of the connecting plate.
A rubber article for use in a method of making a coated rubber article, the rubber article being made from the following raw materials in parts by weight: 60-65 parts of raw rubber; 22-26 parts of desulfurized rubber; 13-15 parts of reduced rubber.
Compared with the prior art, the invention has the beneficial effects that: cleaning waste rubber generated in the production process of rubber products, removing impurities, putting the waste rubber into a crusher for crushing, mixing crushed rubber powder with light calcium carbonate, and filtering to obtain rubber powder according with the process; adding rubber powder into a mixing tank, adding liquid paraffin and water, sealing a feeding port of the mixing tank, starting a stirring mechanism at the temperature of 200-240 ℃ to stir for 80-90 minutes, finishing desulfurization to obtain desulfurized rubber, sequentially adding a De-link regenerant into the mixing tank, adding the mixture into a refiner to pass through for 5-10 times, tabletting and forming to obtain reduced rubber and raw rubber, and mixing and stirring for 60-70 minutes through the stirring mechanism to obtain a rubber product;
wherein, in the stirring process, the motor is started to work to drive the driving belt pulley to rotate, the driving belt pulley drives the driven belt pulley to rotate through the conveyor belt, the driven belt pulley drives the stirring shaft to rotate, so that the stirring paddle on the stirring shaft stirs the raw materials in the middle of the mixing tank, the stirring shaft rotates and simultaneously drives the driving gear to rotate, the driving gear drives the gear ring to rotate through the intermediate gear, the rotating gear ring drives the side shaft to stir the raw materials on the side of the mixing tank, and meanwhile, the scraper blade on the side shaft scrapes the materials along the inner wall of the mixing tank, the stirring mechanism used in the production process of the rubber products can fully and uniformly mix and stir the raw materials in the mixing tank, greatly improves the stirring efficiency, and simultaneously shortens the time of the production process of the rubber products in the production process, usually, a stirring shaft is adopted for stirring and mixing, and the stirring mode causes the stirring speed of the materials at the inner edge of the mixing tank to be poor and the stirring effect to be poor, so that a long time is required in the stirring process;
the mixed rubber product enters a transfer tank through a pump body along a flow channel of a stirring shaft along a communicating pipe, then a substrate to be coated is placed under a spray plate, the rubber product in the transfer tank is sprayed onto the surface of the substrate along a discharge pipe and the spray plate through a delivery pump, and then the rubber product on the surface of the substrate is coated;
transferring the base plate coated with the rubber product into a forming box, injecting a condensing medium into a condensing box through a circulating condensing inlet pipe by a circulating pump, cooling the forming box, starting a second hydraulic cylinder and a fan to work simultaneously, driving the fan on a connecting plate to rotate along a limiting rotating rod by the second hydraulic cylinder, blowing condensed gas on the condensing box to the base plate coated with the rubber product by the fan, cooling and forming the rubber product on the base plate, and controlling the second hydraulic cylinder to reciprocate to enable the fan on the connecting plate to rotate along the limiting rotating rod, so that the forming efficiency of the rubber product on the base plate is improved, and the manufactured rubber product is easy to coat and form on the base plate;
the rubber product is prepared from 60-65 parts of raw rubber; 22-26 parts of desulfurized rubber; 13-15 parts of reducing rubber, and under the mechanical action, the waste rubber is subjected to reduction regeneration, after the waste rubber is treated, the elasticity of the waste rubber is directly removed to recover the plasticity and viscosity, so that the waste rubber can obtain the capacity of mixing and vulcanizing with the raw rubber again.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic overall perspective structure of the present invention.
Fig. 2 is an overall front view of the present invention.
Fig. 3 is a schematic perspective view of the mixing tank of the present invention.
FIG. 4 is a schematic view of the inner structure of the mixing tank of the present invention.
FIG. 5 is a schematic view of the structure of the transmission member of the present invention.
FIG. 6 is a schematic view of the structure of the forming box of the present invention.
In the figure: 1. a base; 2. a mixing tank; 3. a transfer tank; 4. a pump body; 5. a communicating pipe; 6. a first guide plate; 7. a discharge pipe; 8. spraying a plate; 9. a second guide plate; 10. a first hydraulic cylinder; 11. a substrate; 12. a support; 13. forming a box; 14. a guide bar; 15. a truss; 16. a base; 17. a feed inlet; 18. a driven pulley; 19. a drive pulley; 20. a conveyor belt; 21. a motor; 22. mounting the cylinder; 23. a stirring shaft; 24. a transmission member; 25. a stirring paddle; 26. a side shaft; 27. a squeegee; 28. a ring gear; 29. an intermediate gear; 30. a driving gear; 31. a second hydraulic cylinder; 32. circulating condensation inlet pipe; 33. a circulating condensation outlet pipe; 34. a condenser tank; 35. a limiting rotating rod; 36. a sleeve; 37. a connecting plate; 38. a fan.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a method for making a coated rubber article includes the steps of:
s1, cleaning waste rubber generated in the production process of rubber products, removing impurities, putting the waste rubber into a crusher for crushing, mixing crushed rubber powder with light calcium carbonate, and filtering to obtain rubber powder according with the process; adding rubber powder into a mixing tank 2, adding liquid paraffin and water, sealing a feeding port 17 of the mixing tank 2, starting a stirring mechanism at the temperature of 200-240 ℃ to stir for 80-90 minutes, obtaining desulfurized rubber after desulfurization, sequentially adding a De-link regenerant into the mixing tank 2, adding the mixture into a refiner to pass through for 5-10 times, tabletting and forming to obtain reduced rubber and raw rubber, and mixing and stirring for 60-70 minutes through the stirring mechanism to obtain a rubber product;
in the stirring process, the starting motor 21 is started to work to drive the driving belt pulley 19 to rotate, the driving belt pulley 19 drives the driven belt pulley 18 to rotate through the conveyor belt 20, the driven belt pulley 18 drives the stirring shaft 23 to rotate, so that the stirring paddles 25 on the stirring shaft 23 stir the raw materials in the middle of the mixing tank 2, the stirring shaft 23 drives the driving gear 30 to rotate while rotating, the driving gear 30 drives the gear ring 28 to rotate through the intermediate gear 29, the rotating gear ring 28 drives the side shaft 26 to stir the raw materials on the side of the mixing tank 2, and meanwhile, the scraper 27 on the side shaft 26 scrapes the materials along the inner wall of the mixing tank 2;
s2, the mixed rubber product enters the transfer tank 3 through the pump body 4 along the flow channel of the stirring shaft 23 along the communicating pipe 5, then the substrate 11 to be coated is placed under the spray plate 8, the rubber product in the transfer tank 3 is sprayed onto the surface of the substrate 11 through the discharge pipe 7 and the spray plate 8 by the delivery pump, and then the rubber product on the surface of the substrate 11 is coated;
s3, the base plate 11 of the rubber product that will coat is reprinted to the shaping case 13 in, through circulating the condensation and advance the pipe 32 through the circulation pump and inject the condensation medium into the condensing box 34, and cool down in the shaping case 13, then, start second hydraulic cylinder 31 and fan 38 work simultaneously, second hydraulic cylinder 31 drives fan 38 on the connecting plate 37 and rotates along spacing bull stick 35, fan 38 blows the condensing gas on the condensing box 34 to the base plate 11 that has the rubber product, make the cooling shaping of rubber product on base plate 11.
The mixing tank 2 is positioned above the top surface of the base 1, the mixing tank 2 is installed on a first guide plate 6, a transfer tank 3 is arranged on one side of the mixing tank 2, a pump body 4 is arranged on the top surface of the transfer tank 3, the input end of the pump body 4 is communicated with a communicating pipe 5, the output end of the pump body 4 extends to the inner cavity of the transfer tank 3, the transfer tank 3 is installed on the first guide plate 6, a second guide plate 9 is arranged under the first guide plate 6, the discharge end of the transfer tank 3 is connected with a discharge pipe 7, the discharge end of the discharge pipe 7 penetrates out of the second guide plate 9 and is fixedly connected with the second guide plate 9, a feed delivery pump is arranged on the discharge pipe 7 and is installed on the second guide plate 9, the discharge end of the discharge pipe 7 is connected with a spray plate 8, a guide rod 14 is arranged on the top surface of the base 1, the first guide plate 6 and the second guide plate 9 are respectively sleeved on the guide rod 14 in a sliding mode, the output end of the first hydraulic cylinder 10 is connected with the second guide plate 9, a base plate 11 for spraying rubber products is arranged right below the spraying plate 8, a support 12 is arranged on one side of the base 1, and a forming box 13 for cooling the rubber products is arranged on the support 12.
The mixing tank 2 is internally provided with a stirring mechanism, the stirring mechanism comprises a truss 15, a base 16, a charging opening 17, a driven pulley 18, a driving pulley 19, a conveyor belt 20, a motor 21, an installation cylinder 22, a stirring shaft 23, a transmission part 24, a stirring paddle 25, a side shaft 26 and a scraper 27, the top surface of the mixing tank 2 is provided with the cylindrical installation cylinder 22, the top surface of the mixing tank 2 is provided with the U-shaped truss 15, the middle part of the truss 15 is fixedly provided with the base 16, the base 16 is rotatably provided with the stirring shaft 23, the top end of the stirring shaft 23 is sleeved with the driven pulley 18, the driven pulley 18 is connected with the driving pulley 19 through the conveyor belt 20, the driving pulley 19 is connected with the output end of the motor 21, the motor 21 is installed on the truss 15, the bottom end of the stirring shaft 23 sequentially penetrates through the base 16, the truss 15 and the installation cylinder 22, The truss 15, the mounting cylinder 22 and the mixing tank 2 are rotatably connected.
A transmission member 24 is arranged in the mounting cylinder 22, the output end of the transmission member 24 is connected with a side shaft 26, a U-shaped scraper 27 is arranged on the side shaft 26, the vertical part of the scraper 27 is abutted with the inner wall of the mixing tank 2, and a stirring paddle 25 is arranged on the side shaft 26.
The transmission part 24 comprises a gear ring 28, an intermediate gear 29 and a driving gear 30, the driving gear 30 is sleeved on the stirring shaft 23, a plurality of groups of intermediate gears 29 are arranged on the periphery of the driving gear 30 in an annular array and are in meshed connection with the intermediate gears 29, the intermediate gears 29 are rotatably installed on the top surface of the mixing tank 2, the outer wall of the gear ring 28 is rotatably connected with the inner wall of the installation cylinder 22, the inner teeth of the gear ring 28 are in meshed connection with the intermediate gears 29, and a plurality of groups of side shafts 26 are arranged on the bottom surface of the gear ring 28.
The stirring shaft 23 is of a hollow structure and is provided with a flow passage, the stirring paddle 25 is arranged on the stirring shaft 23, the discharge end at the top of the stirring shaft 23 is rotatably connected with the communicating pipe 5 through a sealing bearing, and the mixing tank 2 is a heating tank.
Rectangular through holes are respectively formed in the bottom of two sides of the forming box 13, and a cooling mechanism is arranged in the forming box 13.
The cooling mechanism comprises a second hydraulic cylinder 31, a circulating condensation inlet pipe 32, a circulating condensation outlet pipe 33, a condensation box 34, a limiting rotating rod 35, a sleeve 36, a connecting plate 37 and a fan 38, wherein the condensation box 34 is arranged on the top surface inside the forming box 13, the circulating condensation inlet pipe 32 and the circulating condensation outlet pipe 33 are respectively arranged on two sides of the top surface of the condensation box 34, the rectangular connecting plate 37 is arranged right below the condensation box 34, a plurality of groups of fans 38 are arranged on the bottom surface of the connecting plate 37 at equal intervals, the sleeve 36 is arranged in the middle of the top surface of the connecting plate 37, the sleeve 36 is rotatably sleeved on the limiting rotating rod 35, and two ends of the limiting rotating rod 35 are respectively installed on the inner wall of; the top end of the second hydraulic cylinder 31 is movably mounted on the bottom surface of the condensation box 34, and the bottom end of the second hydraulic cylinder 31 is movably mounted on the top surface of the connecting plate 37 for connection.
A rubber article for use in a method of making a coated rubber article, the rubber article being made from the following raw materials in parts by weight: 60-65 parts of raw rubber; 22-26 parts of desulfurized rubber; 13-15 parts of reduced rubber.
The working principle of the invention is as follows: cleaning waste rubber generated in the production process of rubber products, removing impurities, putting the waste rubber into a crusher for crushing, mixing crushed rubber powder with light calcium carbonate, and filtering to obtain rubber powder according with the process; adding rubber powder into a mixing tank 2, adding liquid paraffin and water, sealing a feeding port 17 of the mixing tank 2, starting a stirring mechanism at the temperature of 200-240 ℃ to stir for 80-90 minutes, obtaining desulfurized rubber after desulfurization, sequentially adding a De-link regenerant into the mixing tank 2, adding the mixture into a refiner to pass through for 5-10 times, tabletting and forming to obtain reduced rubber and raw rubber, and mixing and stirring for 60-70 minutes through the stirring mechanism to obtain a rubber product;
wherein, in the stirring process, the starting motor 21 works to drive the driving belt pulley 19 to rotate, the driving belt pulley 19 drives the driven belt pulley 18 to rotate through the conveyor belt 20, the driven belt pulley 18 drives the stirring shaft 23 to rotate, so that the stirring paddle 25 on the stirring shaft 23 stirs the raw materials in the middle of the mixing tank 2, the stirring shaft 23 drives the driving gear 30 to rotate while rotating, the driving gear 30 drives the gear ring 28 to rotate through the intermediate gear 29, the rotating gear ring 28 drives the side shaft 26 to stir the raw materials at the side of the mixing tank 2, and meanwhile, the scraper 27 on the side shaft 26 scrapes the materials along the inner wall of the mixing tank 2, the stirring mechanism used in the rubber product production process can fully and uniformly mix and stir the raw materials in the mixing tank 2, the stirring efficiency is greatly improved, and meanwhile, the time of the rubber product production process is also shortened, in the prior art, when a rubber product is stirred in a production process, a stirring shaft is usually adopted for stirring and mixing, and the stirring mode causes the stirring speed of materials at the inner edge of a mixing tank to be poor and the stirring effect to be poor, so that a long time is required in the stirring process;
the mixed rubber product enters the transfer tank 3 through the pump body 4 along the flow channel of the stirring shaft 23 along the communicating pipe 5, then the substrate 11 to be coated is placed under the spray plate 8, then the rubber product in the transfer tank 3 is sprayed onto the surface of the substrate 11 through the discharge pipe 7 and the spray plate 8 by the delivery pump, and then the rubber product on the surface of the substrate 11 is coated;
transferring the substrate 11 coated with the rubber product into a forming box 13, injecting a condensing medium into a condensing box 34 through a circulating condensing inlet pipe 32 by a circulating pump, cooling the forming box 13, then simultaneously starting a second hydraulic cylinder 31 and a fan 38, wherein the second hydraulic cylinder 31 drives the fan 38 on a connecting plate 37 to rotate along a limit rotating rod 35, the fan 38 blows condensed gas on the condensing box 34 to the substrate 11 coated with the rubber product, so that the rubber product is cooled and formed on the substrate 11, and the fan 38 on the connecting plate 37 rotates along the limit rotating rod 35 by controlling the reciprocating operation of the second hydraulic cylinder 31, so that the efficiency of forming the rubber product on the substrate 11 is improved, and the manufactured rubber product is easy to be coated and formed on the substrate 11;
the rubber product is prepared from 60-65 parts of raw rubber; 22-26 parts of desulfurized rubber; 13-15 parts of reducing rubber, and under the mechanical action, the waste rubber is subjected to reduction regeneration, after the waste rubber is treated, the elasticity of the waste rubber is directly removed to recover the plasticity and viscosity, so that the waste rubber can obtain the capacity of mixing and vulcanizing with the raw rubber again.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (9)

1. A method for making a coated rubber article, characterized by: the method for manufacturing a coated rubber article comprises the steps of:
s1, cleaning waste rubber generated in the production process of rubber products, removing impurities, putting the waste rubber into a crusher for crushing, mixing crushed rubber powder with light calcium carbonate, and filtering to obtain rubber powder according with the process; adding rubber powder into a mixing tank (2), adding liquid paraffin and water, sealing a feeding port (17) of the mixing tank (2), starting a stirring mechanism at the temperature of 200-240 ℃ to stir for 80-90 minutes, and after desulfurization, obtaining desulfurized rubber, sequentially adding a De-link regenerant into the mixing tank (2), adding the mixture into a refiner to thin for 5-10 times, and mixing and stirring reduced rubber and raw rubber obtained by tabletting for 60-70 minutes by the stirring mechanism to obtain a rubber product;
in the stirring process, a starting motor (21) works to drive a driving belt pulley (19) to rotate, the driving belt pulley (19) drives a driven belt pulley (18) to rotate through a conveying belt (20), the driven belt pulley (18) drives a stirring shaft (23) to rotate, so that a stirring paddle (25) on the stirring shaft (23) stirs raw materials in the middle of a mixing tank (2), the stirring shaft (23) drives a driving gear (30) to rotate while rotating, the driving gear (30) drives a gear ring (28) to rotate through an intermediate gear (29), the rotating gear ring (28) drives a side shaft (26) to stir the raw materials on the side of the mixing tank (2), and meanwhile, a scraper (27) on the side shaft (26) scrapes materials along the inner wall of the mixing tank (2);
s2, the mixed rubber product enters a transfer tank (3) through a pump body (4) along a flow channel of a stirring shaft (23) along a communicating pipe (5), then a substrate (11) to be coated is placed under a spray plate (8), the rubber product in the transfer tank (3) is sprayed onto the surface of the substrate (11) through a delivery pump along a discharge pipe (7) and the spray plate (8), and then the rubber product on the surface of the substrate (11) is coated;
s3, transship the base plate (11) coated with the rubber product into the forming box (13), inject the condensing medium into the condensing box (34) through the circulating pump via the circulating condensation inlet pipe (32), and cool the forming box (13), then, start the second hydraulic cylinder (31) and the fan (38) to work simultaneously, the second hydraulic cylinder (31) drives the fan (38) on the connecting plate (37) to rotate along the limiting rotating rod (35), the fan (38) blows the condensing gas on the condensing box (34) to the base plate (11) coated with the rubber product, so that the rubber product is cooled and formed on the base plate (11).
2. The method for manufacturing a coated rubber product according to claim 1, wherein the mixing tank (2) is located above the top surface of the base (1), the mixing tank (2) is mounted on a first guide plate (6), the transfer tank (3) is located on one side of the mixing tank (2), a pump body (4) is provided on the top surface of the transfer tank (3), an input end of the pump body (4) is communicated with the communicating pipe (5), an output end of the pump body (4) extends to an inner cavity of the transfer tank (3), the transfer tank (3) is mounted on the first guide plate (6), a second guide plate (9) is provided right below the first guide plate (6), a discharge end of the transfer tank (3) is connected with a discharge pipe (7), a discharge end of the discharge pipe (7) penetrates through the second guide plate (9) and is fixedly connected with the second guide plate (9), a feed delivery pump is provided on the discharge pipe (7), the conveying pump is installed on a second guide plate (9), the discharge end of the discharge pipe (7) is connected with a spray plate (8), a guide rod (14) is arranged on the top surface of the base (1), a first guide plate (6) and a second guide plate (9) are respectively sleeved on the guide rod (14) in a sliding mode, a first hydraulic cylinder (10) is installed on the base (1), the output end of the first hydraulic cylinder (10) is connected with the second guide plate (9), a base plate (11) used for spraying rubber products is arranged under the spray plate (8), a support (12) is arranged on one side of the base (1), and a forming box (13) used for cooling the rubber products is arranged on the support (12).
3. The method for manufacturing a coated rubber product according to claim 1, wherein a stirring mechanism is provided in the mixing tank (2), the stirring mechanism comprises a truss (15), a base (16), a feed port (17), a driven pulley (18), a driving pulley (19), a conveyor belt (20), a motor (21), a mounting cylinder (22), a stirring shaft (23), a transmission member (24), a stirring paddle (25), a side shaft (26) and a scraper (27), the top surface of the mixing tank (2) is provided with the cylindrical mounting cylinder (22), the top surface of the mixing tank is provided with the U-shaped truss (15), the base (16) is fixedly mounted in the middle of the truss (15), the stirring shaft (23) is rotatably provided on the base (16), the top end of the stirring shaft (23) is sleeved with the driven pulley (18), and the driven pulley (18) is connected with the driving pulley (19) through the conveyor belt (20), the driving belt pulley (19) is connected with the output end of the motor (21), the motor (21) is installed on the truss (15), the bottom end of the stirring shaft (23) sequentially penetrates through the base (16), the truss (15) and the installation cylinder (22) and extends to the bottom of the mixing tank (2), and the stirring shaft (23) is respectively connected with the base (16), the truss (15), the installation cylinder (22) and the mixing tank (2) in a rotating mode.
4. A method for manufacturing a coated rubber product according to claim 3, characterized in that a transmission member (24) is provided in the mounting cylinder (22), the output end of the transmission member (24) is connected to a side shaft (26), and a U-shaped scraper (27) is provided on the side shaft (26), the vertical portion of the scraper (27) abuts against the inner wall of the mixing tank (2), and a stirring paddle (25) is provided on the side shaft (26).
5. The method for manufacturing a coated rubber product according to claim 4, wherein the transmission member (24) comprises a gear ring (28), an intermediate gear (29) and a driving gear (30), the driving gear (30) is sleeved on the stirring shaft (23), the peripheral annular array of the driving gear (30) is provided with a plurality of groups of intermediate gears (29) and is in meshed connection with the intermediate gears (29), the intermediate gears (29) are rotatably installed on the top surface of the mixing tank (2), the outer wall of the gear ring (28) is rotatably connected with the inner wall of the installation cylinder (22), the inner teeth of the gear ring (28) are in meshed connection with the intermediate gears (29), and the bottom surface of the gear ring (28) is provided with a plurality of groups of side shafts (26) at equal intervals.
6. The method for manufacturing a coated rubber article according to claim 5, wherein the stirring shaft (23) has a hollow structure and is provided with a flow passage, the stirring shaft (23) is provided with a stirring paddle (25), the discharge end at the top of the stirring shaft (23) is rotatably connected with the communicating pipe (5) through a sealed bearing, and the mixing tank (2) is a heating tank.
7. A method for manufacturing a coated rubber article according to claim 1, wherein rectangular through holes are provided in both side bottom portions of the forming box (13), respectively, and a cooling mechanism is provided in the forming box (13).
8. The method for manufacturing a coated rubber article according to claim 7, wherein the cooling mechanism comprises a second hydraulic cylinder (31), a circulating condensate inlet pipe (32), a circulating condensate outlet pipe (33), a condenser tank (34), the device comprises a limiting rotating rod (35), a sleeve (36), a connecting plate (37) and a fan (38), wherein a condensing box (34) is arranged on the inner top surface of a forming box (13), a circulating condensation inlet pipe (32) and a circulating condensation outlet pipe (33) are respectively arranged on two sides of the top surface of the condensing box (34), a rectangular connecting plate (37) is arranged under the condensing box (34), a plurality of groups of fans (38) are arranged on the bottom surface of the connecting plate (37) at equal intervals, the sleeve (36) is arranged in the middle of the top surface of the connecting plate (37), the sleeve (36) is rotatably sleeved on the limiting rotating rod (35), and two ends of the limiting rotating rod (35) are respectively arranged on the inner wall of the forming box (; the top end of the second hydraulic cylinder (31) is movably arranged on the bottom surface of the condensation box (34), and the bottom end of the second hydraulic cylinder (31) is movably arranged on the top surface of the connecting plate (37) to be connected.
9. A rubber article for use in a method of making a coated rubber article according to any of claims 1 to 8, wherein the rubber article is made from the following parts by weight of raw materials: 60-65 parts of raw rubber; 22-26 parts of desulfurized rubber; 13-15 parts of reduced rubber.
CN202010657440.XA 2020-07-09 2020-07-09 Method for producing a coated rubber product and rubber product Pending CN111873280A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114736426A (en) * 2022-04-14 2022-07-12 刘嘉博 Rubber desulfurization and refining integrated machine
CN117207380A (en) * 2023-09-13 2023-12-12 广东秋盛资源股份有限公司 Cut-resistant colored fiber and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN1721484A (en) * 2004-07-13 2006-01-18 舟山市海山密封材料有限公司 Rubber sealed and shock-reducing sound-absorbent material coated on metal sheet and method for preparing same
CN101798397A (en) * 2009-02-11 2010-08-11 韩传杰 New production process of recovered rubber
CN102558636A (en) * 2012-01-06 2012-07-11 山东济海医疗科技股份有限公司 Regenerative composite rubber for medical supplies and production process for regenerative composite rubber
CN210356894U (en) * 2019-07-25 2020-04-21 广东优莱美制药股份有限公司 Capsule production is with changing mucilage binding and is put

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1721484A (en) * 2004-07-13 2006-01-18 舟山市海山密封材料有限公司 Rubber sealed and shock-reducing sound-absorbent material coated on metal sheet and method for preparing same
CN101798397A (en) * 2009-02-11 2010-08-11 韩传杰 New production process of recovered rubber
CN102558636A (en) * 2012-01-06 2012-07-11 山东济海医疗科技股份有限公司 Regenerative composite rubber for medical supplies and production process for regenerative composite rubber
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114736426A (en) * 2022-04-14 2022-07-12 刘嘉博 Rubber desulfurization and refining integrated machine
CN117207380A (en) * 2023-09-13 2023-12-12 广东秋盛资源股份有限公司 Cut-resistant colored fiber and preparation method thereof

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Application publication date: 20201103