CN106476245A - A kind of process equipment of double-colored escape pipe and preparation method - Google Patents

A kind of process equipment of double-colored escape pipe and preparation method Download PDF

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Publication number
CN106476245A
CN106476245A CN201610901846.1A CN201610901846A CN106476245A CN 106476245 A CN106476245 A CN 106476245A CN 201610901846 A CN201610901846 A CN 201610901846A CN 106476245 A CN106476245 A CN 106476245A
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CN
China
Prior art keywords
runner
mould
double
colored
escape pipe
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
CN201610901846.1A
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Chinese (zh)
Inventor
俞高强
林志春
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.)
Ningbo Zhida Auto Parts Co Ltd
Original Assignee
Ningbo Zhida Auto Parts Co Ltd
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Filing date
Publication date
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Priority to CN201610901846.1A priority Critical patent/CN106476245A/en
Publication of CN106476245A publication Critical patent/CN106476245A/en
Pending legal-status Critical Current

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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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/865—Heating
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/337—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/18—Applications used for pipes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a kind of process equipment of double-colored escape pipe and preparation method, first employ the double-layer coextrusion that co-extrusion molding machine achieves two kinds of different materials, respectively PP is expected by the runner A in co-extrusion molding machine, runner B, PP material is heated into molten state with the mixing material of ethylene propylene diene rubber, PP material is mutually fused into materials A with ethylene propylene diene rubber in runner A, by the output of the mouth mould of co-extrusion molding machine, mutual for two kinds of different materials welding is combined into pipe embryo；Then adopt mould by pipe embryo and mold insert connecting shaping, and remove unnecessary material, be inflated inside the trachea that pipe embryo is inserted into is to pipe embryo, make pipe embryo be internally formed cavity.The present invention has the advantages that manufacture difficulty is low, good stability, structure are simple, low cost of manufacture, improving product performance rate, and the escape pipe being produced by the present invention substantially increases oil resistivity, heat-resisting quantity and ageing resistace.

Description

A kind of process equipment of double-colored escape pipe and preparation method
Technical field
The present invention relates to composite pipe production field, especially relate to a kind of process equipment of double-colored escape pipe and preparation side Method.
Background technology
Electromotor escape pipe is the vitals that electromotor is used for connecting air filter, and existing electromotor escape pipe is big It mostly is polypropylene (PP) material, because it can keep out the erosion of oil, oily dirt free, generally as the main component of escape pipe, but poly- Propylene (PP) because resistance to elevated temperatures is poor and easily aging the shortcomings of presence work as it is impossible to be useful in the higher automobile of performance requirement In, and due to Cost Problems, most escape pipe cannot compatible oil resistant and high temperature resistant both characteristics simultaneously.
In order to meet the market demand, designer designs a has high temperature resistant, oil resistant, many excellent spies such as ageing-resistant Property escape pipe, this escape pipe be double layer material structure, inner layer material be polypropylene (PP) resin, cladding material be EPDM Rubber (EPDM) and the material mixing of polypropylene (PP) resin, the inside of body is provided with a cavity, and cavity is built-in free Gas, two ends one end of body is connected with the corrugated tube of cleaner, and the other end is connected with electromotor.
But, it is unable to reach predetermined technical standard using the escape pipe that traditional processing method and equipment produce, therefore This area is in the urgent need to providing a kind of equipment that can prepare double-colored escape pipe and method.
Content of the invention
It is an object of the invention to overcoming above-mentioned the deficiencies in the prior art, provide a kind of process equipment of double-colored escape pipe and Preparation method it is intended to solve traditional escape pipe not oil resistant, non-refractory, easily aging the shortcomings of.
The present invention solves the technical scheme that adopted of above-mentioned technical problem：A kind of process equipment of double-colored escape pipe, bag Include co-extrusion molding machine and mould, be provided with runner A, runner B in described co-extrusion molding machine, in described runner A, runner B, be provided with heating Device, the head of described co-extrusion molding machine is provided with the mouth mould being connected with runner A, runner B, is provided with and product in described mould The die cavity matching, described die cavity becomes enclosed tubular structure, is provided with and the pore connecting inside die cavity in described mould.
As a further improvement on the present invention, described runner A adopts five-part form to heat, and is provided with the in described runner A One heated zones, the second heated zones, the 3rd heated zones, the 4th heated zones and the 5th heated zones.Using multisection type plus Heat is in order that melt material is more stable, uniform, improves the yield rate of product.
As a further improvement on the present invention, the temperature control of the first described heated zones is at 180～190 DEG C, described The second heated zones temperature control at 190～200 DEG C, the temperature control of described the 3rd heated zones is 200～210 DEG C, the temperature control of described the 4th heated zones at 210～215 DEG C, described the 4th heated zones temperature control 215～ 220℃.
As a further improvement on the present invention, described mould includes upper die and lower die, and described upper mould is provided with the first one-tenth Type groove, described lower mould is provided with the second forming tank, constitutes die cavity after the first described forming tank and the second forming tank matched moulds.
A kind of preparation method of double-colored escape pipe, comprises the following steps：
First, melt co-extrusion becomes pipe embryo, (1) dispensing：The PP material of solid-state and ethylene propylene diene rubber remove impurity are dried, by a part PP material is mixed in proportion with ethylene propylene diene rubber；(2) heat co-extrusion：The compound of PP material and ethylene propylene diene rubber is put into runner Heating in A, makes that the two is changed into molten state from solid-state and mutual welding is set to materials A, the PP material of remainder is put into stream simultaneously In road B, heating fusing is set to material B, and materials A, material B pass through mouth mould output in co-extrusion molding machine and be combined into pipe embryo, runner A, runner The temperature of B all controls at 180～220 DEG C, and runner A, the air pressure of runner B control in 6～8MPa；
2nd, sizing, inflation obtain double-colored escape pipe：(1) put into mold insert in the die cavity of mould, (2) are by the pipe on mouth mould Embryo takes off to be put in die cavity, and (3) are inserted appendix from the pore of die cavity end and pipe embryo is inflated, and (4) are closed by mould Mould is by pipe embryo and mold insert connecting shaping, and removes excess stock, and (5) pull out trachea, are removed from the molds shaped article.
As a further improvement on the present invention, the ratio of described materials A and material B is 1: 1.Through many experiments table Face, the properties of product after 1: 1 material mixture ratio are more preferable.
Compared with prior art, it is an advantage of the current invention that first employing co-extrusion molding machine to achieve the double of two kinds of different materials PP is expected respectively, PP material is heated with the mixing material of ethylene propylene diene rubber by layer co-extrusion by the runner A in co-extrusion molding machine, runner B Become molten state, PP material is mutually fused into materials A with ethylene propylene diene rubber in runner A, will by the mouth mould output of co-extrusion molding machine The mutual welding of two kinds of different materials is combined into pipe embryo；Then adopt mould by pipe embryo and mold insert connecting shaping, and remove unnecessary Material, is inflated inside the trachea that pipe embryo is inserted into is to pipe embryo, makes pipe embryo be internally formed cavity.It is difficult that the present invention has manufacture Degree low, good stability, structure are simple, low cost of manufacture, improving product performance rate the advantages of, by giving vent to anger that the present invention produces Pipe, substantially increases oil resistivity, heat-resisting quantity and ageing resistace.
Brief description
Fig. 1 is co-extrusion molding machine part-structure schematic diagram；
Fig. 2 is mould decomposition texture schematic diagram；
Fig. 3 is escape pipe production technological process.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, not For limiting the present invention.
As shown in Figure 1 to Figure 2：A kind of process equipment of double-colored escape pipe, including co-extrusion molding machine (1) and mould, co-extrusion It is provided with runner A (2), runner B (3) in machine (1), in runner A (2), runner B (3), be provided with heater, the machine of co-extrusion molding machine (1) Head is provided with the mouth mould (4) being connected with runner A (2), runner B (3), is provided with the die cavity matching with product in mould, and die cavity becomes envelope The tubular structure of enclosed, is provided with mould and the pore connecting inside die cavity.
Runner A (2) adopts five-part form to heat, and is provided with the first heated zones, the second heated zones, Acanthopanan trifoliatus (L.) Merr. in runner A (2) Hot-section, the 4th heated zones and the 5th heated zones.
, at 180～190 DEG C, the temperature control of the second heated zones is 190～200 for the temperature control of the first heated zones DEG C, at 200～210 DEG C, the temperature control of the 4th heated zones is at 210～215 DEG C, the 4th for the temperature control of the 3rd heated zones Heated zones temperature control is at 215～220 DEG C.
Mould includes mould (5) and lower mould (6), and upper mould (5) is provided with the first forming tank (7), and lower mould (6) is provided with the second molding Die cavity is constituted after groove (8), the first forming tank (7) and the second forming tank (8) matched moulds.
A kind of preparation method of double-colored escape pipe, comprises the following steps：
First, melt co-extrusion becomes pipe embryo, (1) dispensing：The PP material of solid-state and ethylene propylene diene rubber remove impurity are dried, by a part PP material is mixed in proportion with ethylene propylene diene rubber；(2) heat co-extrusion：The compound of PP material and ethylene propylene diene rubber is put into runner Heating in A (2), makes that the two is changed into molten state from solid-state and mutual welding is set to materials A, puts into the PP material of remainder simultaneously In runner B (3), heating fusing is set to material B, and materials A, material B pass through mouth mould (4) output in co-extrusion molding machine (1) and be combined into pipe Embryo, runner A (2), the temperature of runner B (3) all control at 180～220 DEG C, and runner A (2), the air pressure of runner B (3) controls 6～ 8MPa；
2nd, sizing, inflation obtain double-colored escape pipe：(1) put into mold insert in the die cavity of mould, (2) are by mouth mould (4) Pipe embryo takes off to be put in die cavity, and (3) are inserted appendix from the pore of die cavity end and pipe embryo is inflated, and (4) pass through mould Matched moulds is by pipe embryo and mold insert connecting shaping, and removes excess stock, and (5) pull out trachea, are removed from the molds shaped article.
The ratio of described materials A and material B is 1: 1.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.

Claims (6)

1. a kind of process equipment of double-colored escape pipe is it is characterised in that include co-extrusion molding machine and mould, in described co-extrusion molding machine Be provided with runner A, runner B, in described runner A, runner B, be provided with heater, the head of described co-extrusion molding machine be provided with The mouth mould that runner A, runner B connect, is provided with the die cavity matching with product, described die cavity becomes enclosed pipe in described mould Shape structure, is provided with described mould and the pore connecting inside die cavity.
2. a kind of process equipment of double-colored escape pipe according to claim 1 is it is characterised in that described runner A adopts five Segmentation heats, and is provided with the first heated zones, the second heated zones, the 3rd heated zones, the 4th heated zones in described runner A With the 5th heated zones.
3. a kind of process equipment of double-colored escape pipe according to claim 2 is it is characterised in that described first thermal treatment zone The temperature control of section at 180～190 DEG C, the temperature control of described the second heated zones at 190～200 DEG C, the described 3rd , at 200～210 DEG C, the temperature control of described the 4th heated zones is at 210～215 DEG C, described for the temperature control of heated zones The 4th heated zones temperature control at 215～220 DEG C.
4. a kind of process equipment of double-colored escape pipe according to claim 1 is it is characterised in that described mould includes Mould and lower mould, described upper mould is provided with the first forming tank, and described lower mould is provided with the second forming tank, the first described forming tank and Die cavity is constituted after second forming tank matched moulds.
5. a kind of preparation method of double-colored escape pipe is it is characterised in that comprise the following steps：
First, melt co-extrusion becomes pipe embryo, (1) dispensing：The PP material of solid-state and ethylene propylene diene rubber remove impurity are dried, a part of PP is expected It is mixed in proportion with ethylene propylene diene rubber；(2) heat co-extrusion：The compound of PP material and ethylene propylene diene rubber is put in runner A Heating, makes that the two is changed into molten state from solid-state and mutual welding is set to materials A, the PP material of remainder is put into runner B simultaneously Interior heating fusing is set to material B, materials A, material B pass through mouth mould output in co-extrusion molding machine and be combined into pipe embryo, runner A, runner B Temperature all controls at 180～220 DEG C, and runner A, the air pressure of runner B control in 6～8MPa；
2nd, sizing, inflation obtain double-colored escape pipe：(1) put into mold insert in the die cavity of mould, the pipe embryo on mouth mould is taken by (2) Under put in die cavity, (3) are inserted appendix from the pore of die cavity end and pipe embryo are inflated, (4) pass through mould matched moulds will Pipe embryo and mold insert connecting shaping, and remove excess stock, (5) pull out trachea, are removed from the molds shaped article.
6. a kind of preparation method of double-colored escape pipe according to claim 5 is it is characterised in that described materials A and material The ratio of B is 1: 1.
CN201610901846.1A 2016-10-14 2016-10-14 A kind of process equipment of double-colored escape pipe and preparation method Pending CN106476245A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107511981A (en) * 2017-08-31 2017-12-26 四川塑塑料制品有限公司 A kind of double-material profile and extrusion die
CN109483852A (en) * 2018-12-29 2019-03-19 重庆赛格尔汽车配件有限公司 Corrugated inner tube blow moulding machine

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Publication number Priority date Publication date Assignee Title
CN1984815A (en) * 2004-07-28 2007-06-20 东洋制罐株式会社 Resin container, method for producing resin container, and apparatus for producing resin container
CN103522526A (en) * 2013-09-30 2014-01-22 西安交通大学 Multi-layer co-extrusion die head intelligent temperature control system and control method thereof
CN103998205A (en) * 2011-11-22 2014-08-20 宝洁公司 Method for producing a toothbrush having an inner cavity

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Publication number Priority date Publication date Assignee Title
CN1984815A (en) * 2004-07-28 2007-06-20 东洋制罐株式会社 Resin container, method for producing resin container, and apparatus for producing resin container
CN103998205A (en) * 2011-11-22 2014-08-20 宝洁公司 Method for producing a toothbrush having an inner cavity
CN103522526A (en) * 2013-09-30 2014-01-22 西安交通大学 Multi-layer co-extrusion die head intelligent temperature control system and control method thereof

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107511981A (en) * 2017-08-31 2017-12-26 四川塑塑料制品有限公司 A kind of double-material profile and extrusion die
CN109483852A (en) * 2018-12-29 2019-03-19 重庆赛格尔汽车配件有限公司 Corrugated inner tube blow moulding machine
CN109483852B (en) * 2018-12-29 2020-08-25 重庆赛格尔汽车配件有限公司 Corrugated inner tube blow molding machine

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