CN102785340B - Plastic injection process for PVC (polyvinyl chloride) parts of infusion apparatuses - Google Patents
Plastic injection process for PVC (polyvinyl chloride) parts of infusion apparatuses Download PDFInfo
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- CN102785340B CN102785340B CN201210296295.2A CN201210296295A CN102785340B CN 102785340 B CN102785340 B CN 102785340B CN 201210296295 A CN201210296295 A CN 201210296295A CN 102785340 B CN102785340 B CN 102785340B
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- barrel
- injection
- plastic injection
- injection process
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- 238000002347 injection Methods 0.000 title claims abstract description 41
- 239000007924 injection Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 20
- 229920003023 plastic Polymers 0.000 title claims abstract description 18
- 239000004033 plastic Substances 0.000 title claims abstract description 18
- 229920000915 polyvinyl chloride Polymers 0.000 title abstract 4
- 239000004800 polyvinyl chloride Substances 0.000 title abstract 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title abstract 2
- 238000001802 infusion Methods 0.000 title abstract 2
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000001746 injection moulding Methods 0.000 description 8
- 238000000465 moulding Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007723 die pressing method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a plastic injection process for PVC (polyvinyl chloride) parts of infusion apparatuses. The plastic injection process comprises the steps: S1, preparing sol, S2, closing a mould, S3, injecting sol, S4, maintaining pressure, S5, cooling, S6, opening the mould, and S7, demoulding. The plastic injection process has the advantages that by means of a hot runner plastic injection process, heating devices are arranged in runners of the hot runner mould, runner materials are in molten state in the whole plastic injection period, raw materials are saved, and cost is reduced. Further, the plastic injection process is simple in procedure, easy to implement and shortened in period time, product quality is better, and automation level is increased.
Description
Technical field
The present invention relates to injection molding technology field, particularly a kind of transfusion device PVC material part Shooting Technique.
Background technology
Injection moulding is a kind of method of industrial products production moulding.Product uses rubber injection mold and plastics injection moulding usually.Injection moulding can be divided into injection mo(u)lding die pressing and casting die.Injection moulding machine is the main former of plastic products thermoplastic or thermosetting plastics being made various shape by mould, and injection moulding is realized by injection machine and mould.
The inlet valve of transfusion device, two logical, liquid medicine filter and Connection Block all adopt PVC plastic to make, at present, when producing the inlet valve of transfusion device, two logical, liquid medicine filter and Connection Block, usual employing cold runner injection molding process, it is that runner cools with product after moulding, this runner material is disabled, has become waste material.The cold runner system of injection mo(u)lding from the nozzle of injection moulding machine, through sprue, runner, secondary runner, cast gate, to die cavity.Melten gel is sent to die cavity from injection machine by cold runner system, if configuration or size improper, can produce shortly to penetrate, shrink mark, shrinkage cavity, current mark, weld mark, long period time etc. problem, cause product percent of pass on the low side.Except raw-material waste, the defect of cold runner technique also comprises makes whole process add step: after injection mo(u)lding, needs robot or workman that moulding and runner are separated; According to the size of runner, the generation of waste material adds processing cost greatly.
Summary of the invention
The transfusion device PVC material part Shooting Technique the object of the invention is to the shortcoming overcoming prior art, provide a kind of and save material, processing step is simple, shortening cycle time.
Object of the present invention is achieved through the following technical solutions: transfusion device PVC material part Shooting Technique, and it comprises the following steps:
S1, colloidal sol, by barrel nozzle heating temperatures to 155 ~ 175 DEG C of injection machine, be heated to 160 ~ 180 DEG C by barrel one section, barrel two sections be heated to 160 ~ 180 DEG C, barrel three sections is heated to 145 ~ 165 DEG C;
S2, matched moulds, burn close time is 1 ~ 3s;
S3, injection, be expelled in mould by the PVC plastic of molten condition by nozzle, and injection speed is 60 ~ 90% maximal raties, and injection pressure is 130 ~ 140bar;
S4, pressurize, dwell pressure is 40 ~ 60bar, and the dwell time is 1 ~ 2s;
S5, cooling, the time of cooling is 2 ~ 4s;
S6, die sinking, open time is 1 ~ 3s;
S7, the demoulding, demould time is 1 ~ 3s.
The present invention has the following advantages: the present invention adopts hot flow path Shooting Technique, and in hot runner mould, runner has heater, so runner is all in molten condition in whole injection cycle, has saved raw material, has reduced cost; Present invention process step is simply convenient to realize, and shortens cycle time; Product quality is better; Improve automaticity.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further described, and protection scope of the present invention is not limited to the following stated:
embodiment 1:
Transfusion device PVC material part Shooting Technique, it comprises the following steps:
S1, colloidal sol, the barrel of injection machine is followed successively by barrel three sections, barrel two sections and barrel one section along the direction from charging aperture to nozzle, by the barrel nozzle heating temperatures to 155 DEG C of injection machine, barrel one section is heated to 160 DEG C, barrel two sections is heated to 160 DEG C, barrel three sections is heated to 145 DEG C; The PVC plastic of adding in barrel is heated to molten condition by barrel;
S2, matched moulds, burn close time is 3s;
S3, injection, be expelled in mould by the PVC plastic of molten condition by nozzle, and injection speed is 90% maximal rate, and injection pressure is 140bar; The maximal rate of screw rod (or plunger) movement when described maximal rate is pointed injection;
S4, pressurize, dwell pressure is 60bar, and the dwell time is 2s;
S5, cooling, the time of cooling is 2s;
S6, die sinking, open time is 1s;
S7, the demoulding, demould time is 1s.
embodiment 2:
Transfusion device PVC material part Shooting Technique, it comprises the following steps:
S1, colloidal sol, the barrel of injection machine is followed successively by barrel three sections, barrel two sections and barrel one section along the direction from charging aperture to nozzle, by the barrel nozzle heating temperatures to 160 DEG C of injection machine, barrel one section is heated to 170 DEG C, barrel two sections is heated to 170 DEG C, barrel three sections is heated to 155 DEG C; The PVC plastic of adding in barrel is heated to molten condition by barrel;
S2, matched moulds, burn close time is 1s;
S3, injection, be expelled in mould by the PVC plastic of molten condition by nozzle, and injection speed is 75% maximal rate, and injection pressure is 135bar; The maximal rate of screw rod (or plunger) movement when described maximal rate is pointed injection;
S4, pressurize, dwell pressure is 50bar, and the dwell time is 1s;
S5, cooling, the time of cooling is 3s;
S6, die sinking, open time is 2s;
S7, the demoulding, demould time is 2s.
embodiment 3:
Transfusion device PVC material part Shooting Technique, it comprises the following steps:
S1, colloidal sol, the barrel of injection machine is followed successively by barrel three sections, barrel two sections and barrel one section along the direction from charging aperture to nozzle, by the barrel nozzle heating temperatures to 175 DEG C of injection machine, barrel one section is heated to 180 DEG C, barrel two sections is heated to 180 DEG C, barrel three sections is heated to 165 DEG C; The PVC plastic of adding in barrel is heated to molten condition by barrel;
S2, matched moulds, burn close time is 2s;
S3, injection, be expelled in mould by the PVC plastic of molten condition by nozzle, and injection speed is 60% maximal rate, and injection pressure is 130bar; The maximal rate of screw rod (or plunger) movement when described maximal rate is pointed injection;
S4, pressurize, dwell pressure is 40bar, and the dwell time is 1s;
S5, cooling, the time of cooling is 4s;
S6, die sinking, open time is 3s;
S7, the demoulding, demould time is 3s.
Claims (1)
1. transfusion device PVC material part Shooting Technique, is characterized in that: it comprises the following steps:
S1, colloidal sol, the barrel of injection machine is followed successively by barrel three sections, barrel two sections and barrel one section along the direction from charging aperture to nozzle, by barrel nozzle heating temperatures to 155 ~ 175 DEG C of injection machine, barrel one section is heated to 160 ~ 180 DEG C, barrel two sections is heated to 160 ~ 180 DEG C, barrel three sections is heated to 145 ~ 165 DEG C;
S2, matched moulds, burn close time is 1 ~ 3s, and in mould, runner has heater;
S3, injection, be expelled in mould by the PVC plastic of molten condition by nozzle, and injection speed is 60 ~ 90% maximal raties, and injection pressure is 130 ~ 140bar;
S4, pressurize, dwell pressure is 40 ~ 60bar, and the dwell time is 1 ~ 2s;
S5, cooling, the time of cooling is 2 ~ 4s;
S6, die sinking, open time is 1 ~ 3s;
S7, the demoulding, demould time is 1 ~ 3s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210296295.2A CN102785340B (en) | 2012-08-20 | 2012-08-20 | Plastic injection process for PVC (polyvinyl chloride) parts of infusion apparatuses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210296295.2A CN102785340B (en) | 2012-08-20 | 2012-08-20 | Plastic injection process for PVC (polyvinyl chloride) parts of infusion apparatuses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102785340A CN102785340A (en) | 2012-11-21 |
| CN102785340B true CN102785340B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210296295.2A Active CN102785340B (en) | 2012-08-20 | 2012-08-20 | Plastic injection process for PVC (polyvinyl chloride) parts of infusion apparatuses |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270892B (en) * | 2014-07-31 | 2017-12-01 | 欣兴同泰科技（昆山）有限公司 | A kind of flexible printed circuit board manufacturing process |
| CN112454809A (en) * | 2020-09-27 | 2021-03-09 | 鹰潭荣嘉集团医疗器械实业有限公司 | Infusion apparatus injection molding device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101712783A (en) * | 2008-09-29 | 2010-05-26 | 山东侨牌集团有限公司 | Disposable non-toxic plasticizer infusion set and preparation method thereof |
| CN101845173A (en) * | 2010-05-19 | 2010-09-29 | 安徽双鹤药业有限责任公司 | Manufacturing process and production equipment for medical infusion bags |
| JP4850930B2 (en) * | 2009-06-12 | 2012-01-11 | キヤノン株式会社 | Method of manufacturing a molded product using an injection molding machine |
| CN102417671A (en) * | 2010-09-27 | 2012-04-18 | 上海远洲管业有限公司 | Preparation technology of high strength PVC non-excavation pipe fitting |
| CN102579257A (en) * | 2012-03-14 | 2012-07-18 | 崇州君健塑胶有限公司 | Infusion bag joint and manufacturing method thereof and accessory for infusion bags |
-
2012
- 2012-08-20 CN CN201210296295.2A patent/CN102785340B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101712783A (en) * | 2008-09-29 | 2010-05-26 | 山东侨牌集团有限公司 | Disposable non-toxic plasticizer infusion set and preparation method thereof |
| JP4850930B2 (en) * | 2009-06-12 | 2012-01-11 | キヤノン株式会社 | Method of manufacturing a molded product using an injection molding machine |
| CN101845173A (en) * | 2010-05-19 | 2010-09-29 | 安徽双鹤药业有限责任公司 | Manufacturing process and production equipment for medical infusion bags |
| CN102417671A (en) * | 2010-09-27 | 2012-04-18 | 上海远洲管业有限公司 | Preparation technology of high strength PVC non-excavation pipe fitting |
| CN102579257A (en) * | 2012-03-14 | 2012-07-18 | 崇州君健塑胶有限公司 | Infusion bag joint and manufacturing method thereof and accessory for infusion bags |
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| Publication number | Publication date |
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| CN102785340A (en) | 2012-11-21 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Plastic injection process for PVC (polyvinyl chloride) parts of infusion apparatuses Effective date of registration: 20160322 Granted publication date: 20150325 Pledgee: Bank of Communications Ltd Yichun branch Pledgor: Jiangxi Kelun Medical Equipment Manufacturing Co., Ltd. Registration number: 2016990000228 |
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Date of cancellation: 20180313 Granted publication date: 20150325 Pledgee: Bank of Communications Ltd Yichun branch Pledgor: Jiangxi Kelun Medical Equipment Manufacturing Co., Ltd. Registration number: 2016990000228 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Plastic injection process for PVC (polyvinyl chloride) parts of infusion apparatuses Effective date of registration: 20180313 Granted publication date: 20150325 Pledgee: Bank of Communications Ltd Yichun branch Pledgor: Jiangxi Kelun Medical Equipment Manufacturing Co., Ltd. Registration number: 2018990000188 |
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Date of cancellation: 20200522 Granted publication date: 20150325 Pledgee: Bank of Communications Ltd Yichun branch Pledgor: JIANGXI KELUN MEDICAL EQUIPMENT MANUFACTURING Co.,Ltd. Registration number: 2018990000188 |