CN109109259A - A kind of modified air-conditioner housing injection molding process - Google Patents

A kind of modified air-conditioner housing injection molding process Download PDF

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Publication number
CN109109259A
CN109109259A CN201810846442.6A CN201810846442A CN109109259A CN 109109259 A CN109109259 A CN 109109259A CN 201810846442 A CN201810846442 A CN 201810846442A CN 109109259 A CN109109259 A CN 109109259A
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CN
China
Prior art keywords
raw
injection
injection molding
heated
mold
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
CN201810846442.6A
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Chinese (zh)
Inventor
张志林
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.)
SHANGHAI PUDONG MEILING PLASTIC PRODUCTS CO LTD
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SHANGHAI PUDONG MEILING PLASTIC PRODUCTS 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 SHANGHAI PUDONG MEILING PLASTIC PRODUCTS CO LTD filed Critical SHANGHAI PUDONG MEILING PLASTIC PRODUCTS CO LTD
Priority to CN201810846442.6A priority Critical patent/CN109109259A/en
Publication of CN109109259A publication Critical patent/CN109109259A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/762Household appliances

Abstract

The invention discloses a kind of modified air-conditioner housing injection molding process, including the technique to be implemented using corresponding adapted to injection system and injection mold, and the technique includes the following steps: that (1) raw material mixes;(2) it stirs;(3) pretreatment of raw material;(4) equipment pre-processes;(5) raw material is plasticized;(6) it molds;(7) raw material is injected;(8) pressure maintaining;(9) it is cooled and shaped;(10) it is opened;(11) molded housing is taken out;(12) clear mould;(13) it examines;(14) warehousing finished products;(15) it is crushed;(16) it screens.Cooling time of the invention is short and uniform, and process implementing step is simple, effectively reduces period and the production cost of product injection molding, while by corresponding process conditions, effectively raising the final product quality of product, being good for the environment.

Description

A kind of modified air-conditioner housing injection molding process
Technical field
The present invention relates to injection molding technology fields, are related specifically to a kind of modified air-conditioner housing injection molding process.
Background technique
Injection molding is a kind of method of industrial products production moulding.Product is usually using rubber injection mold and plastic injection.Injection molding Molding die platen press and casting die can also be dispensed.Injection (mo(u)lding) machine (abbreviation injector or injection molding machine) is by thermoplastic or heat The main molding equipment of plastic products of various shapes is made using mould for plastics for solidity material, and injection moulding is to pass through injection molding Machine and mold are realized.
To meet consumer for the aesthetic requirement of air-conditioner housing appearance, and also to more environmentally-friendly, using exempting to spray High-surface gloss traceless injection molding technology production air-conditioner housing has become mainstream.The generation and development of the technology be unable to do without plastic shaping The continuous development and innovation of technology cover multiple sides such as glazed plastic material, high-gloss injection mold, mould temperature temperature control device Face.
In recent years, people have been no longer satisfied with the use function of air-conditioning, sample to the appreciation of its appearance and environmentally protective It is required that higher and higher.Since traditional injection moulding process is first to be molded air-conditioner housing, the method then sprayed again, both not environmentally, matter Amount is also unstable, and out-of-date methods have been abandoned one after another by numerous international and domestic well-known manufacturers, then use a kind of novel forming technology --- Spraying-free high-surface gloss traceless injection molding technology.The technology can make air-conditioner housing surface gloss high and weldless line, current mark and contracting The defects of trace, and it is not necessarily to subsequent spraying process, to be reduced to environmental protection and cost extremely advantageous.Due to exempting to spray bloom note The implementation of molding technology be unable to do without glazed plastic material, high-gloss injection mold, mould temperature temperature control device and injection molding machine and injection molding work The tight fit of skill.
But there is also certain defects in implementation process for the existing technique for being molded air-conditioner housing, when such as cooling Between it is longer, need to account for the 70-80% of entire molding cycle, and inhomogeneous cooling is even, easily stick up the product of injection molding The defects of song deformation, processing step is complicated, molding cycle is long and at high cost, while the final product quality of prior art is not high, it is difficult To meet the production requirement of people.
However in view of the deficiencies of the prior art, a kind of design is reasonable, structure is simple, cooling time it is necessary to develop by developer Short and uniform, process implementing step is simple, effectively reduces period and the production cost of product injection molding, passes through simultaneously Corresponding process conditions effectively raise the final product quality of product, environmentally friendly modified air-conditioner housing injection molding Technique.
Summary of the invention
In order to solve the problems existing in the prior art, the object of the invention provide a kind of design rationally, structure it is simple, cooling when Between it is short and uniform, process implementing step is simple, effectively reduce period and the production cost of product injection molding, simultaneously lead to Corresponding process conditions are crossed, the final product quality of product is effectively raised, environmentally friendly modified air-conditioner housing is molded into Type technique.
In order to solve the above technical problems, the present invention is realized using following technical scheme:
A kind of modified air-conditioner housing injection molding process, including the technique use corresponding adapted to injection system and injection mold To implement, it is characterised in that;
The technique includes the following steps:
(1) raw material mixes: broken raw material is mixed with the raw material for being used to be molded air-conditioner housing;
(2) it stirs: mixed raw material being stirred by agitating device;
(3) pretreatment of raw material: the drying of 2 hours is carried out to raw material using baking oven, and raw material is heated to 110-120 ℃;
(4) equipment pre-processes: the barrel in adapted to injection system being heated to 210-285 DEG C, the cover half in injection mold is added Heat arrives 70-80 DEG C, and dynamic model is heated to 50-60 DEG C;
(5) raw material is plasticized: the raw material that step (3) has pre-processed being added in the barrel of step (4) processing, is heated to melt Melt state;
(6) it molds: the mold after heating is molded;
(7) raw material is injected: by the raw material by the molten condition of step (4) by nozzle injection to the mold by (5) In;
(8) pressure maintaining: by injecting uniformly carry out pressure maintaining, dwell time 4-6s;
(9) be cooled and shaped: the cooling and shaping time is 20-30s;
(10) it is opened: being opened while hot;
(11) take out molded housing: operator carries proximity gloves and removes shell after molding from mold;
(12) clear mould: operator clears up the mold by step (11), and it is dynamic that step (6) are carried out after the completion of cleaning Make, prepares for the injection molding of next shell;
(13) it examines: the molded housing in step (11) is tested;
(14) it warehousing finished products: is put in storage by the qualified products that step (13) are examined;
(15) it is crushed: break process is carried out by crusher by the substandard product that step (13) are examined;
(16) it screens: screening plant being selected to screen to by the crushed particles after step (15), it will be satisfactory Crushed particles carry out mixing the operation for carrying out step (1) with the raw material for being molded air-conditioner housing.
In a preferred embodiment of the invention, the barrel heating in the step (4) is divided into three sections, and back segment is heated to 210-240 DEG C, for Mid-section heating to 230-280 DEG C, leading portion is heated to 240-285 DEG C.
In a preferred embodiment of the invention, the injection pressure in the step (7) is 80-130kg/cm2
In a preferred embodiment of the invention, sieve diameter used in screening plant is 0.4- in the step (16) 0.6cm。
Compared with prior art, the invention has the following advantages that cooling time is short and uniform, process implementing step is simple, Period and the production cost of product injection molding are effectively reduced, while by corresponding process conditions, it is effective to improve The final product quality of product, high degree of automation improve the aesthetics of surface of plastic products, are good for the environment.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.
Fig. 1 is flow chart of the invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below Conjunction is specifically illustrating, and the present invention is further explained.
Shown in referring to Fig.1, a kind of modified air-conditioner housing injection molding process provided in figure, including the technique use phase The adapted to injection system and injection mold answered is implemented, and injection mold is mainly made of dynamic model and cover half.
Specific step is as follows for its technique:
(1) raw material mixing 100
Broken raw material is mixed with the raw material for being used to be molded air-conditioner housing.
(2) 200 are stirred
Mixed raw material is stirred by agitating device, after stirring by agitating device, raw material can be made to mix It is more uniform.
(3) pretreatment of raw material 300
The drying of 2 hours is carried out to raw material using baking oven, and raw material is heated to 110-120 DEG C.
(4) equipment pretreatment 400
Barrel in adapted to injection system is heated to 210-285 DEG C, the cover half in injection mold is heated to 75 DEG C, dynamic model adds Heat is to 55 DEG C, and barrel heating is divided into three sections, and back segment is heated to 210-240 DEG C, and to 230-280 DEG C, leading portion is heated to Mid-section heating 240-285℃。
(5) raw material plasticizing 500
The raw material that step (3) has pre-processed is added in the barrel of step (4) processing, is heated to molten condition.
(6) 600 are molded
Mold after heating is molded.
(7) raw material injection 700
By the raw material by the molten condition of step (4) through nozzle injection in by the mold of (5), injection pressure is 80-130kg/cm2
(8) pressure maintaining 800
By injecting uniformly carry out pressure maintaining, dwell time 4-6s.
(9) 900 are cooled and shaped
The cooling and shaping time is 20-30s.
(10) 1000 are opened
It is opened while hot.
(11) molded housing 1100 is taken out
Operator carries proximity gloves and removes shell after molding from mold.
(12) clear mould 1200
Operator clears up the mold by step (11), and step (6) movement is carried out after the completion of cleaning, is next A shell injection molding is prepared.
(13) 1300 are examined
Molded housing in step (11) is tested, examine molded housing whether have lack material, fragmentation, expect spend, reprint books in a reduce format, The bad phenomenons such as scratch, impression of the hand, stain, mist, without being then qualification, it is then unqualified for having.
(14) warehousing finished products 1400
It is put in storage by the qualified products that step (13) are examined.
(15) 1500 are crushed
Break process is carried out by crusher by the substandard product that step (13) are examined, underproof product is crushed At graininess.
(16) 1600 are screened
Select screening plant to screen to by the crushed particles after step (15), by satisfactory crushed particles and Raw material for being molded air-conditioner housing carries out the operation that mixing carries out step (1), and sieve diameter used in middle screening plant is 0.4-0.6cm。
Invention has the advantage that cooling time is short and uniform in summary, and process implementing step is simple, has The period for reducing product injection molding of effect and production cost, while by corresponding process conditions, it effectively raises The final product quality of product, high degree of automation improve the aesthetics of surface of plastic products, are good for the environment.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this The principle of invention, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent defines.

Claims (4)

1. a kind of modified air-conditioner housing injection molding process, including the technique using corresponding adapted to injection system and injection mold come Implement, it is characterised in that;
The technique includes the following steps:
(1) raw material mixes: broken raw material is mixed with the raw material for being used to be molded air-conditioner housing;
(2) it stirs: mixed raw material being stirred by agitating device;
(3) pretreatment of raw material: the drying of 2 hours is carried out to raw material using baking oven, and raw material is heated to 110-120 DEG C;
(4) equipment pre-processes: the barrel in adapted to injection system being heated to 210-285 DEG C, the cover half in injection mold is heated to 70-80 DEG C, dynamic model is heated to 50-60 DEG C;
(5) raw material is plasticized: the raw material that step (3) has pre-processed being added in the barrel of step (4) processing, is heated to molten State;
(6) it molds: the mold after heating is molded;
(7) raw material is injected: by the raw material by the molten condition of step (4) through nozzle injection in by the mold of (5);
(8) pressure maintaining: by injecting uniformly carry out pressure maintaining, dwell time 4-6s;
(9) be cooled and shaped: the cooling and shaping time is 20-30s;
(10) it is opened: being opened while hot;
(11) take out molded housing: operator carries proximity gloves and removes shell after molding from mold;
(12) clear mould: operator clears up the mold by step (11), and step (6) movement is carried out after the completion of cleaning, It prepares for the injection molding of next shell;
(13) it examines: the molded housing in step (11) is tested;
(14) it warehousing finished products: is put in storage by the qualified products that step (13) are examined;
(15) it is crushed: break process is carried out by crusher by the substandard product that step (13) are examined;
(16) it screens: screening plant being selected to screen to by the crushed particles after step (15), it will be satisfactory broken Particle carries out mixing the operation for carrying out step (1) with the raw material for being molded air-conditioner housing.
2. a kind of modified air-conditioner housing injection molding process as described in claim 1, it is characterised in that: the step (4) In barrel heating be divided into three sections, back segment is heated to 210-240 DEG C, and for Mid-section heating to 230-280 DEG C, leading portion is heated to 240- 285℃。
3. a kind of modified air-conditioner housing injection molding process as described in claim 1, it is characterised in that: the step (7) In injection pressure be 80-130kg/cm2
4. a kind of modified air-conditioner housing injection molding process as described in claim 1, it is characterised in that: the step (16) Sieve diameter used in middle screening plant is 0.4-0.6cm.
CN201810846442.6A 2018-07-27 2018-07-27 A kind of modified air-conditioner housing injection molding process Pending CN109109259A (en)

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Application Number Priority Date Filing Date Title
CN201810846442.6A CN109109259A (en) 2018-07-27 2018-07-27 A kind of modified air-conditioner housing injection molding process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810846442.6A CN109109259A (en) 2018-07-27 2018-07-27 A kind of modified air-conditioner housing injection molding process

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CN109109259A true CN109109259A (en) 2019-01-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109655111A (en) * 2019-01-15 2019-04-19 广东首熙智能装备有限公司 Injection molding machine peripheral equipment quality monitoring system
CN110509451A (en) * 2019-09-27 2019-11-29 太仓意欣智能科技有限公司 A kind of injection molding process for arc air-conditioning panel

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Publication number Priority date Publication date Assignee Title
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CN101921464A (en) * 2010-09-01 2010-12-22 王崇高 Making method of air conditioner outdoor shell
CN102407588A (en) * 2010-09-25 2012-04-11 上海浦东美灵塑料制品有限公司 Injection molding technology for acrylonitrile butadiene styrene (ABS) plastic air conditioner shell
CN102407587A (en) * 2010-09-25 2012-04-11 上海浦东美灵塑料制品有限公司 Injection molding process for polyphenylene oxide (PPO) plastic air conditioner shell
CN103868219A (en) * 2012-12-11 2014-06-18 珠海格力电器股份有限公司 Air-conditioner and production method for appearance part of same

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
CN101602314A (en) * 2009-07-14 2009-12-16 无锡市科虹标牌有限公司 The production method of decorative plate of abrasion-resistant surface
CN101921464A (en) * 2010-09-01 2010-12-22 王崇高 Making method of air conditioner outdoor shell
CN102407588A (en) * 2010-09-25 2012-04-11 上海浦东美灵塑料制品有限公司 Injection molding technology for acrylonitrile butadiene styrene (ABS) plastic air conditioner shell
CN102407587A (en) * 2010-09-25 2012-04-11 上海浦东美灵塑料制品有限公司 Injection molding process for polyphenylene oxide (PPO) plastic air conditioner shell
CN103868219A (en) * 2012-12-11 2014-06-18 珠海格力电器股份有限公司 Air-conditioner and production method for appearance part of same

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109655111A (en) * 2019-01-15 2019-04-19 广东首熙智能装备有限公司 Injection molding machine peripheral equipment quality monitoring system
CN109655111B (en) * 2019-01-15 2021-01-05 广东首熙智能装备有限公司 Injection molding machine peripheral equipment quality monitoring system
CN110509451A (en) * 2019-09-27 2019-11-29 太仓意欣智能科技有限公司 A kind of injection molding process for arc air-conditioning panel

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