CN107443658A - A kind of injection molding technique of multistage shaping - Google Patents

A kind of injection molding technique of multistage shaping Download PDF

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Publication number
CN107443658A
CN107443658A CN201710620913.7A CN201710620913A CN107443658A CN 107443658 A CN107443658 A CN 107443658A CN 201710620913 A CN201710620913 A CN 201710620913A CN 107443658 A CN107443658 A CN 107443658A
Authority
CN
China
Prior art keywords
injection
mould
plastic material
melting
die cavity
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
CN201710620913.7A
Other languages
Chinese (zh)
Inventor
彭远明
张秀金
段远福
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.)
SUZHOU HAIBO HARDWARE RUBBER PRODUCTS Co Ltd
Original Assignee
SUZHOU HAIBO HARDWARE RUBBER 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 SUZHOU HAIBO HARDWARE RUBBER PRODUCTS Co Ltd filed Critical SUZHOU HAIBO HARDWARE RUBBER PRODUCTS Co Ltd
Priority to CN201710620913.7A priority Critical patent/CN107443658A/en
Publication of CN107443658A publication Critical patent/CN107443658A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/78—Measuring, controlling or regulating of temperature
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76498—Pressure
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76531—Temperature
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76595—Velocity
    • B29C2945/76598—Velocity linear movement

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention discloses a kind of multistage shaping injection molding technique, first, select mould：According to the profile of the product selection suitable mould of die cavity, matched moulds is put into injection machine after mold cleaning；Second, select inserts：Corresponding inserts is selected according to product structure, inserts by the location structure on mould be placed in the master mold specified；3rd, parameter designing：According to the geometry of die cavity, the number of stages of segmentation injection is calculated, while and design the injection parameterses value of every section of injection；4th, multistage injection：Injection machine injects the plastic material of melting into mould, and the plastic material of melting is injected into the inlet flow channel mouth formation first paragraph injection of mould；The cast gate that enters that the plastic material of melting flows into mould forms second segment injection；The plastic material of melting flows into mould product die cavity 90% and forms the 3rd section of injection；The plastic material of melting flows into mould product die cavity remainder and forms four sections of injections；5th, it is cooled and shaped；6th, equipment die sinking.

Description

A kind of injection molding technique of multistage shaping
Technical field
The present invention relates to a kind of injection molding process, particularly a kind of router cover forming method.
Background technology
Injection machine also known as injection (mo(u)lding) machine or injector, it is that thermoplastic or thermosetting plastics are utilized into plastic shaping The main former of variously-shaped plastic products is made in mould, is divided into vertical, horizontal, all electric, injection function heating modeling Material, high pressure is applied to molten plastic, it is projected and is full of mold cavity.Generally, Shooting Technique refers to such one kind Technique, it first has to prepare to need the plastic substance moulded, such as plastics is plastified, then noted the plastics plasticated Enter in the die cavity of injection mold, after plastics are hardened, it is possible to obtain desired injection module.
The content of the invention
The present invention solves the technical problem of a kind of injection molding technique of multistage shaping is provided, it is molded using segmentation Method, can effectively improve injection quality.
In order to solve the above technical problems, one aspect of the present invention is：A kind of injection of multistage shaping is provided Processing technology, it includes：
First, select mould：According to the profile of the product selection suitable mould of die cavity, matched moulds is put into injection machine after mold cleaning It is interior；
Second, select inserts：Corresponding inserts is selected according to product structure, inserts is laid by the location structure on mould In specified master mold；
3rd, parameter designing：According to the geometry of die cavity, the number of stages of segmentation injection is calculated, while and design every section The injection parameterses value of injection；
4th, multistage injection：Injection machine injects the plastic material of melting into mould, and the plastic material of melting is injected into mould Inlet flow channel mouth forms first paragraph injection；The cast gate that enters that the plastic material of melting flows into mould forms second segment injection；Melting Plastic material flows into mould product die cavity 90% and forms the 3rd section of injection；It is remaining that the plastic material of melting flows into mould product die cavity Part forms four sections of injections；
5th, it is cooled and shaped：According to product size and THICKNESS CALCULATION cool time, finished product is stood and cooled down；
6th, equipment die sinking：Mould is separated according to draft angle, it is injection-molded finished to be ejected.
Preferably, the injection of first paragraph injection is low speed injection, and its injection rate is 0.6 ~ 0.8cm/s, injection pressure For 80 ~ 110bar, melt adhesive temperature is 180 ~ 200 DEG C.
Preferably, the injection of second segment injection is middling speed injection, and its injection rate is 0.8 ~ 1.0cm/s, injection pressure For 100 ~ 130bar, melt adhesive temperature is 180 ~ 200 DEG C.
Preferably, the injection of the 3rd section of injection is high speed injection motding, and its injection rate is 1.0 ~ 1.2cm/s, injection pressure For 120 ~ 150bar, melt adhesive temperature is 200 ~ 220 DEG C.
Preferably, the injection of the 4th section of injection is low speed injection, and its injection rate is 0.6 ~ 0.8cm/s, injection pressure For 80 ~ 110bar, melt adhesive temperature is 180 ~ 200 DEG C.
The beneficial effects of the invention are as follows：A kind of injection molding technique of multistage shaping is provided, by sectional injection-moulding side Method so that the plastic cement quality of product injection molding is more prominent, so as to make product have higher flexibility, can absorb outer The strength that portion comes, ensure that product function is stable.
Embodiment
Presently preferred embodiments of the present invention is described in detail below so that advantages and features of the invention can be easier to by It will be appreciated by those skilled in the art that apparent clearly defined so as to be made to protection scope of the present invention.
The embodiment of the present invention includes：A kind of injection molding technique of multistage shaping, its step include：
First, select mould：According to the profile of the product selection suitable mould of die cavity, matched moulds is put into injection machine after mold cleaning It is interior；
Second, select inserts：Corresponding inserts is selected according to product structure, inserts is laid by the location structure on mould In specified master mold；
3rd, parameter designing：According to the geometry of die cavity, the number of stages of segmentation injection is calculated, while and design every section The injection parameterses value of injection；
4th, multistage injection：Injection machine injects the plastic material of melting into mould, and the plastic material of melting is injected into mould Inlet flow channel mouth forms first paragraph injection；The injection of first paragraph injection is molded for low speed, and its injection rate is 0.6 ~ 0.8cm/s, Injection pressure is 80 ~ 110bar, and melt adhesive temperature is 180 ~ 200 DEG C.The cast gate that enters that the plastic material of melting flows into mould forms the Two sections of injections；The injection of second segment injection is molded for middling speed, and its injection rate is 0.8 ~ 1.0cm/s, injection pressure for 100 ~ 130bar, melt adhesive temperature are 180 ~ 200 DEG C.The plastic material of melting flows into mould product die cavity 90% and forms the 3rd section of injection；The The injections of three sections of injections are high speed injection motding, and its injection rate is 1.0 ~ 1.2cm/s, and injection pressure is 120 ~ 150bar, melten gel temperature Spend for 200 ~ 220 DEG C.The plastic material of melting flows into mould product die cavity remainder and forms four sections of injections；4th section injection Inject and be molded for low speed, its injection rate is 0.6 ~ 0.8cm/s, and injection pressure is 80 ~ 110bar, and melt adhesive temperature is 180 ~ 200 ℃。
5th, it is cooled and shaped：According to product size and THICKNESS CALCULATION cool time, finished product is stood into 180s coolings；
6th, equipment die sinking：Mould is separated according to draft angle, it is injection-molded finished to be ejected.
According to above-mentioned processing step, the design parameter of its design of the other embodiment 1 ~ 6 of this programme use is as shown in the table：
Because the die cavity relatively depth and wall of product are again relatively thin, so making mold cavity form long and narrow runner, melt flows through this Must be very quickly by the way that otherwise easy cooled and solidified, can cause melt to be not fully filled whole die cavity, so when injection during individual position During product die cavity on mould, high speed injection should be used, although too high flow velocity can bring very big kinetic energy to melt, but Energy loss and overflow edge phenomenon can be caused when being melt flow channel die edge, so should be lowerd when full die cavity is soon filled Inject speed.So high speed injection is selected in 90% volume of die cavity, and remaining 10% volume will use injection at low velocity, this Sample could improve the quality of product, prevent the outlet of substandard products.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art Scholar can understand present disclosure and be carried out, and it is not intended to limit the scope of the present invention, all according to the present invention The equivalent change or modification that Spirit Essence is made, it should all cover within the scope of the present invention.

Claims (5)

  1. A kind of 1. injection molding technique of multistage shaping, it is characterised in that：Its step includes：
    First, select mould：According to the profile of the product selection suitable mould of die cavity, matched moulds is put into injection machine after mold cleaning It is interior；
    Second, select inserts：Corresponding inserts is selected according to product structure, inserts is laid by the location structure on mould In specified master mold；
    3rd, parameter designing：According to the geometry of die cavity, the number of stages of segmentation injection is calculated, while and design every section The injection parameterses value of injection；
    4th, multistage injection：Injection machine injects the plastic material of melting into mould, and the plastic material of melting is injected into mould Inlet flow channel mouth forms first paragraph injection；The cast gate that enters that the plastic material of melting flows into mould forms second segment injection；Melting Plastic material flows into mould product die cavity 90% and forms the 3rd section of injection；It is remaining that the plastic material of melting flows into mould product die cavity Part forms four sections of injections；
    5th, it is cooled and shaped：According to product size and THICKNESS CALCULATION cool time, finished product is stood and cooled down；
    6th, equipment die sinking：Mould is separated according to draft angle, it is injection-molded finished to be ejected.
  2. A kind of 2. injection molding technique of multistage shaping according to claim 1, it is characterised in that：First paragraph injection Inject and be molded for low speed, its injection rate is 0.6 ~ 0.8cm/s, and injection pressure is 80 ~ 110bar, and melt adhesive temperature is 180 ~ 200 ℃。
  3. A kind of 3. injection molding technique of multistage shaping according to claim 1, it is characterised in that：Second segment injection Inject and be molded for middling speed, its injection rate is 0.8 ~ 1.0cm/s, and injection pressure is 100 ~ 130bar, and melt adhesive temperature is 180 ~ 200 ℃。
  4. A kind of 4. injection molding technique of multistage shaping according to claim 1, it is characterised in that：3rd section injection It is 1.0 ~ 1.2cm/s to inject as high speed injection motding, its injection rate, and injection pressure is 120 ~ 150bar, and melt adhesive temperature is 200 ~ 220 ℃。
  5. A kind of 5. injection molding technique of multistage shaping according to claim 1, it is characterised in that：4th section injection Inject and be molded for low speed, its injection rate is 0.6 ~ 0.8cm/s, and injection pressure is 80 ~ 110bar, and melt adhesive temperature is 180 ~ 200 ℃。
CN201710620913.7A 2017-07-27 2017-07-27 A kind of injection molding technique of multistage shaping Pending CN107443658A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710620913.7A CN107443658A (en) 2017-07-27 2017-07-27 A kind of injection molding technique of multistage shaping

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Application Number Priority Date Filing Date Title
CN201710620913.7A CN107443658A (en) 2017-07-27 2017-07-27 A kind of injection molding technique of multistage shaping

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Publication Number Publication Date
CN107443658A true CN107443658A (en) 2017-12-08

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108715018A (en) * 2018-06-12 2018-10-30 上海均诺汽车零部件有限公司 Automobile atmosphere lamp optical conductor Shooting Technique
CN109483799A (en) * 2018-11-19 2019-03-19 长春超维科技产业有限责任公司 The injection moulding process of imitative woven pattern inner and outer decorative parts of automobile
CN113752467A (en) * 2021-10-22 2021-12-07 宁波均胜汽车安全系统有限公司 Spring bolt forming method and injection molding machine thereof
CN113997587A (en) * 2021-09-29 2022-02-01 长春方圆汽车零部件有限公司 Production process flow of upper guard plates of front and rear doors of automobile
CN114248390A (en) * 2021-11-17 2022-03-29 遵义群建塑胶制品有限公司 Injection molding processing technology of refrigerator freezing drawer
CN116038999A (en) * 2022-12-15 2023-05-02 昆山爱迪曼智能科技有限公司 Injection molding process of medical reagent rapid diagnosis plate injection molding process

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103934951A (en) * 2014-04-03 2014-07-23 苏州益群模具有限公司 Injection molding process for car bumpers

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
CN103934951A (en) * 2014-04-03 2014-07-23 苏州益群模具有限公司 Injection molding process for car bumpers

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梁锦雄: "《注塑技术培训教程》", 30 June 2009, 机械工业出版社 *
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108715018A (en) * 2018-06-12 2018-10-30 上海均诺汽车零部件有限公司 Automobile atmosphere lamp optical conductor Shooting Technique
CN109483799A (en) * 2018-11-19 2019-03-19 长春超维科技产业有限责任公司 The injection moulding process of imitative woven pattern inner and outer decorative parts of automobile
CN113997587A (en) * 2021-09-29 2022-02-01 长春方圆汽车零部件有限公司 Production process flow of upper guard plates of front and rear doors of automobile
CN113752467A (en) * 2021-10-22 2021-12-07 宁波均胜汽车安全系统有限公司 Spring bolt forming method and injection molding machine thereof
CN114248390A (en) * 2021-11-17 2022-03-29 遵义群建塑胶制品有限公司 Injection molding processing technology of refrigerator freezing drawer
CN116038999A (en) * 2022-12-15 2023-05-02 昆山爱迪曼智能科技有限公司 Injection molding process of medical reagent rapid diagnosis plate injection molding process

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Application publication date: 20171208