CN109676887A - A kind of Shooting Technique of dialysis dry powder bag plastic interface - Google Patents
A kind of Shooting Technique of dialysis dry powder bag plastic interface Download PDFInfo
- Publication number
- CN109676887A CN109676887A CN201811566988.2A CN201811566988A CN109676887A CN 109676887 A CN109676887 A CN 109676887A CN 201811566988 A CN201811566988 A CN 201811566988A CN 109676887 A CN109676887 A CN 109676887A
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- injection molding
- plastic
- molding machine
- mold
- dry powder
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- 229920003023 plastic Polymers 0.000 title claims abstract description 150
- 239000004033 plastic Substances 0.000 title claims abstract description 150
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000000843 powder Substances 0.000 title claims abstract description 31
- 238000000502 dialysis Methods 0.000 title claims abstract description 30
- 238000001746 injection moulding Methods 0.000 claims abstract description 108
- 239000007788 liquid Substances 0.000 claims abstract description 56
- 238000002347 injection Methods 0.000 claims abstract description 42
- 239000007924 injection Substances 0.000 claims abstract description 42
- 239000004615 ingredient Substances 0.000 claims abstract description 41
- 239000000498 cooling water Substances 0.000 claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 238000002844 melting Methods 0.000 claims abstract description 15
- 230000008018 melting Effects 0.000 claims abstract description 15
- 230000002085 persistent effect Effects 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229920001903 high density polyethylene Polymers 0.000 claims description 26
- 239000004700 high-density polyethylene Substances 0.000 claims description 26
- 239000002245 particle Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 abstract description 14
- 239000000463 material Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000001631 haemodialysis Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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
- B29C45/17—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
- 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
- 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
- B29C2945/76655—Location of control
- B29C2945/76658—Injection unit
- B29C2945/76668—Injection unit barrel
-
- 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
- B29C2945/76655—Location of control
- B29C2945/76732—Mould
-
- 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
- B29C2945/76822—Phase or stage of control
- B29C2945/76862—Holding, dwelling
-
- 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
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7154—Barrels, drums, tuns, vats
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- External Artificial Organs (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of plastic injection technique, in particular to a kind of Shooting Technique of dialysis dry powder bag plastic interface, comprising the following steps: S1: ingredient；S2: feeding: will be in the plastic grain conveying feeding to injection molding machine in proportioning machine；S3: heating plasticizing: the plastic grain of solid heating plasticizing in injection molding machine forms the plastic liquid of melting, and is stored in injection molding machine；S4: die closing injection molding: injection mold die closing, injection molding machine inject the plastic liquid of molten condition into mold；S5: pressure maintaining: injection molding machine persistent pressure into mold；S6: cooling: injection mold being cooled down by cooling water；S7: die sinking；Wherein, the holding temperature in step S3 is between 225 DEG C~255 DEG C, and for the dwell pressure in step S5 between 60MPa~80MPa, the dwell time is 10S~13S；The water temperature of cooling water is between 15 DEG C~18 DEG C in step S6.The product that the present invention makes possesses preferable surface quality and color gloss, and is easily installed, good airproof performance.
Description
Technical field
The present invention relates to a kind of plastic injection technique, in particular to a kind of Shooting Technique of dialysis dry powder bag plastic interface.
Background technique
Dialysis dry powder bag is the disposable products on haemodialysis control unit, and dialysis dry powder band is provided with sodium hydrogen carbonate powder
End.Dialysis dry powder band includes bag body and plastic interface, and the structure of plastic interface is as shown in Figure 1, plastic interface generally uses injection molding
Molding.
The Shooting Technique of existing plastic interface is the following steps are included: S1: ingredient: being carried out by proportioning machine to plastic grain
Ingredient；S2: feeding: will be in the plastic grain conveying feeding to injection molding machine in proportioning machine；S3: heating plasticizing: the plastics of solid
Grain heating plasticizing in injection molding machine, forms the plastic liquid of melting, and be stored in injection molding machine；S4: die closing injection molding: injection mold
Die closing, injection molding machine inject the plastic liquid of molten condition into mold；S5: pressure maintaining: injection molding machine persistent pressure into mold；S6:
It is cooling: injection mold being cooled down by cooling water；S7: die sinking.Wherein, the material of ingredient is usually using PP material, to step
Holding temperature after being plasticized in rapid S3 also has certain requirement, in step S5 dwell pressure and the dwell time also have it is certain
It is required that the cooling temperature in step S6 is also critically important.When one in above-mentioned parameter or several numerical value select bad,
The surface quality for being molded the plastic interface formed is poor, it is also possible to form overlap, will lead to plastic interface in this way and be assembled to blood
Occur being difficult to the problem of assembling when on liquid dialysis machine, it is also possible to cause to seal bad problem.
Summary of the invention
The object of the present invention is to provide a kind of Shooting Techniques of dialysis dry powder bag plastic interface, improve the modeling of injection molding
Expect the surface quality of interface.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of Shooting Technique of dialysis dry powder bag plastic interface, comprising the following steps: S1: ingredient: by proportioning machine to plastics
Grain carries out ingredient；S2: feeding: will be in the plastic grain conveying feeding to injection molding machine in proportioning machine；S3: heating plasticizing: solid
Plastic grain heating plasticizing in injection molding machine, forms the plastic liquid of melting, and is stored in injection molding machine；S4: die closing injection molding: note
Mould die closing, injection molding machine inject the plastic liquid of molten condition into mold；S5: pressure maintaining: injection molding machine persistently adds into mold
Pressure；S6: cooling: injection mold being cooled down by cooling water；S7: die sinking；Holding temperature in step S3 225 DEG C~
Between 255 DEG C；For dwell pressure in step S5 between 60MPa~80MPa, the dwell time is 10S~13S；It is cold in step S6
But the water temperature of water is between 15 DEG C~18 DEG C.
By using above-mentioned technical proposal, can guarantee to mould when holding temperature in step S3 is between 225 DEG C~255 DEG C
Stream body has good mobility, and the mobility of plastic liquid is poor if temperature is too low, meeting during subsequent injection molding
Cause plastic liquid to be difficult to fill die cavity, reduce the binding force of plastic liquid, the intensity of finished product is low, roughness is high；If temperature mistake
Height, then the mobility of plastic liquid is larger, and overlap is easy to produce during injection molding, is in addition also possible to will cause plastic liquid
Oxidation occurs and turns to be yellow, influences product appearance；Between 60MPa~80MPa, the dwell time is dwell pressure in step S5
10S~13S can guarantee binding force of the plastic liquid in forming process, improve the intensity and surface smoothness of product, if protecting
Pressure pressure is too small or the dwell time is too short, then binding force of the plastic liquid in die cavity is weaker, and plastic liquid also may be used
Die cavity can be filled up completely, so as to cause finished product intensity is low, surface quality is poor；If dwell pressure is excessive or the dwell time
Too long, then binding ability of the plastic liquid in forming process is stronger, to occur in part or large area because of plastic density
It is larger and the phenomenon that whiten, it is also possible to generate overlap during injection molding；In step S6 the water temperature of cooling water 15 DEG C~
Between 18 DEG C, the binding ability of mobility and plastic liquid of the plastic liquid in die cavity ensure that, the temperature of cooling water is too low,
Then the temperature of mold is lower, and in injection molding, mobility of the plastic liquid in die cavity is poor, the binding ability of plastic liquid also compared with
Difference, can make that the intensity of molding product is low, surface roughness is high；If the temperature of cooling water is excessively high, cooling time can be elongated, makes
Single injection-molded total sulfur control it is elongated, reduce production efficiency, while cooling water temperature it is excessively high may also will lead to it is cold
But the temperature of finished product is still higher after, to make product that buckling deformation occur after demolding.
Preferably, the holding temperature in step S3 is at 245 DEG C.
Preferably, the dwell pressure in step S5 is 70MPa.
Preferably, the dwell time in step S5 is 12S.
Preferably, the water temperature of cooling water is 16 DEG C in step S6.
Preferably, plastic grain is high density polyethylene (HDPE) in step S1.
Preferably, in step s 4, injection mold is molded using two injection points.
By using above-mentioned technical proposal, plastic liquid flows into die cavitys by two injection points when injection molding, plastic liquid
Flowing in die cavity is more uniform, and injection molding quality is more preferably.
Preferably, carrying out feeding while pressure maintaining.
By using above-mentioned technical proposal, the whole duration of a complete injection molding process can be shortened.
In conclusion the present invention has following technical effect that the holding temperature by restriction heating plasticizing, in pressure maintaining period
Dwell pressure and dwell time and cooling procedure in cooling water water temperature, enable to product to possess preferable surface quality
With color gloss.
Detailed description of the invention
Fig. 1 is schematic diagram of product structure of the invention；
Fig. 2 is flow chart of the invention.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.The wherein identical appended drawing reference of identical components
It indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "upper", "lower", " bottom surface " and
" top surface " refers to that the direction in attached drawing, word "inner" and "outside" are referred respectively to towards or away from geometric center of specific component
Direction.
Embodiment one:
A kind of Shooting Technique of dialysis dry powder bag plastic interface, as shown in Figure 2, comprising the following steps:
S1: ingredient: ingredient is carried out to plastic grain by proportioning machine, the plastic grain of ingredient is high density polyethylene (HDPE)；
S2: feeding: will be in the plastic grain conveying feeding to injection molding machine in proportioning machine；
S3: heating plasticizing: the plastic grain of solid heating plasticizing in injection molding machine forms the plastic liquid of melting, and is stored in
In injection molding machine, holding temperature is 225 DEG C in injecting machine material tube；
S4: die closing injection molding: injection mold die closing, injection molding machine inject the plastic liquid of molten condition into mold；
S5: pressure maintaining: injection molding machine persistent pressure into mold, dwell pressure 60MPa, dwell time 10S；
S6: cooling: injection mold to be cooled down by cooling water, the temperature of cooling water is 15 DEG C；
S7: die sinking.
To shorten the overall time being once molded, feeding can be carried out while pressure maintaining.
Furthermore it is also possible to which in step s 4, injection mold is molded using two injection points, be conducive to shorten note in this way
The time of modeling, and flowing of the plastic liquid in die cavity is more uniform, and injection molding quality is more preferably.
Embodiment two:
A kind of Shooting Technique of dialysis dry powder bag plastic interface, comprising the following steps:
S1: ingredient: ingredient is carried out to plastic grain by proportioning machine, the plastic grain of ingredient is high density polyethylene (HDPE)；
S2: feeding: will be in the plastic grain conveying feeding to injection molding machine in proportioning machine；
S3: heating plasticizing: the plastic grain of solid heating plasticizing in injection molding machine forms the plastic liquid of melting, and is stored in
In injection molding machine, holding temperature is 255 DEG C in injecting machine material tube；
S4: die closing injection molding: injection mold die closing, injection molding machine inject the plastic liquid of molten condition into mold；
S5: pressure maintaining: injection molding machine persistent pressure into mold, dwell pressure 80MPa, dwell time 13S；
S6: cooling: injection mold to be cooled down by cooling water, the temperature of cooling water is 18 DEG C；
S7: die sinking.
To shorten the overall time being once molded, feeding can be carried out while pressure maintaining.
Furthermore it is also possible to which in step s 4, injection mold is molded using two injection points, be conducive to shorten note in this way
The time of modeling, and flowing of the plastic liquid in die cavity is more uniform, and injection molding quality is more preferably.
Embodiment three:
A kind of Shooting Technique of dialysis dry powder bag plastic interface, comprising the following steps:
S1: ingredient: ingredient is carried out to plastic grain by proportioning machine, the plastic grain of ingredient is high density polyethylene (HDPE)；
S2: feeding: will be in the plastic grain conveying feeding to injection molding machine in proportioning machine；
S3: heating plasticizing: the plastic grain of solid heating plasticizing in injection molding machine forms the plastic liquid of melting, and is stored in
In injection molding machine, holding temperature is 245 DEG C in injecting machine material tube；
S4: die closing injection molding: injection mold die closing, injection molding machine inject the plastic liquid of molten condition into mold；
S5: pressure maintaining: injection molding machine persistent pressure into mold, dwell pressure 70MPa, dwell time 12S；
S6: cooling: injection mold to be cooled down by cooling water, the temperature of cooling water is 16 DEG C；
S7: die sinking.
To shorten the overall time being once molded, feeding can be carried out while pressure maintaining.
Furthermore it is also possible to which in step s 4, injection mold is molded using two injection points, be conducive to shorten note in this way
The time of modeling, and flowing of the plastic liquid in die cavity is more uniform, and injection molding quality is more preferably.
Example IV:
A kind of Shooting Technique of dialysis dry powder bag plastic interface, comprising the following steps:
S1: ingredient: ingredient is carried out to plastic grain by proportioning machine, the plastic grain of ingredient is high density polyethylene (HDPE)；
S2: feeding: will be in the plastic grain conveying feeding to injection molding machine in proportioning machine；
S3: heating plasticizing: the plastic grain of solid heating plasticizing in injection molding machine forms the plastic liquid of melting, and is stored in
In injection molding machine, holding temperature is 220 DEG C in injecting machine material tube；
S4: die closing injection molding: injection mold die closing, injection molding machine inject the plastic liquid of molten condition into mold；
S5: pressure maintaining: injection molding machine persistent pressure into mold, dwell pressure 55MPa, dwell time 9S；
S6: cooling: injection mold to be cooled down by cooling water, the temperature of cooling water is 14 DEG C；
S7: die sinking.
The present embodiment is the progress during finding injection molding dialysis dry powder bag plastic interface Shooting Technique optimal parameter
Test.
Embodiment five:
A kind of Shooting Technique of dialysis dry powder bag plastic interface, comprising the following steps:
S1: ingredient: ingredient is carried out to plastic grain by proportioning machine, the plastic grain of ingredient is high density polyethylene (HDPE)；
S2: feeding: will be in the plastic grain conveying feeding to injection molding machine in proportioning machine；
S3: heating plasticizing: the plastic grain of solid heating plasticizing in injection molding machine forms the plastic liquid of melting, and is stored in
In injection molding machine, holding temperature is 260 DEG C in injecting machine material tube；
S4: die closing injection molding: injection mold die closing, injection molding machine inject the plastic liquid of molten condition into mold；
S5: pressure maintaining: injection molding machine persistent pressure into mold, dwell pressure 85MPa, dwell time 14S；
S6: cooling: injection mold to be cooled down by cooling water, the temperature of cooling water is 19 DEG C；
S7: die sinking.
Embodiment six:
A kind of Shooting Technique of dialysis dry powder bag plastic interface, comprising the following steps:
S1: ingredient: ingredient is carried out to plastic grain by proportioning machine, the plastic grain of ingredient is high density polyethylene (HDPE)；
S2: feeding: will be in the plastic grain conveying feeding to injection molding machine in proportioning machine；
S3: heating plasticizing: the plastic grain of solid heating plasticizing in injection molding machine forms the plastic liquid of melting, and is stored in
In injection molding machine, holding temperature is 225 DEG C in injecting machine material tube；
S4: die closing injection molding: injection mold die closing, injection molding machine inject the plastic liquid of molten condition into mold；
S5: pressure maintaining: injection molding machine persistent pressure into mold, dwell pressure 55MPa, dwell time 10S；
S6: cooling: injection mold to be cooled down by cooling water, the temperature of cooling water is 15 DEG C；
S7: die sinking.
Embodiment seven:
A kind of Shooting Technique of dialysis dry powder bag plastic interface, comprising the following steps:
S1: ingredient: ingredient is carried out to plastic grain by proportioning machine, the plastic grain of ingredient is high density polyethylene (HDPE)；
S2: feeding: will be in the plastic grain conveying feeding to injection molding machine in proportioning machine；
S3: heating plasticizing: the plastic grain of solid heating plasticizing in injection molding machine forms the plastic liquid of melting, and is stored in
In injection molding machine, holding temperature is 225 DEG C in injecting machine material tube；
S4: die closing injection molding: injection mold die closing, injection molding machine inject the plastic liquid of molten condition into mold；
S5: pressure maintaining: injection molding machine persistent pressure into mold, dwell pressure 85MPa, dwell time 10S；
S6: cooling: injection mold to be cooled down by cooling water, the temperature of cooling water is 15 DEG C；
S7: die sinking.
Embodiment eight:
A kind of Shooting Technique of dialysis dry powder bag plastic interface, comprising the following steps:
S1: ingredient: ingredient is carried out to plastic grain by proportioning machine, the plastic grain of ingredient is high density polyethylene (HDPE)；
S2: feeding: will be in the plastic grain conveying feeding to injection molding machine in proportioning machine；
S3: heating plasticizing: the plastic grain of solid heating plasticizing in injection molding machine forms the plastic liquid of melting, and is stored in
In injection molding machine, holding temperature is 225 DEG C in injecting machine material tube；
S4: die closing injection molding: injection mold die closing, injection molding machine inject the plastic liquid of molten condition into mold；
S5: pressure maintaining: injection molding machine persistent pressure into mold, dwell pressure 60MPa, dwell time 9S；
S6: cooling: injection mold to be cooled down by cooling water, the temperature of cooling water is 15 DEG C；
S7: die sinking.
Embodiment nine:
A kind of Shooting Technique of dialysis dry powder bag plastic interface, comprising the following steps:
S1: ingredient: ingredient is carried out to plastic grain by proportioning machine, the plastic grain of ingredient is high density polyethylene (HDPE)；
S2: feeding: will be in the plastic grain conveying feeding to injection molding machine in proportioning machine；
S3: heating plasticizing: the plastic grain of solid heating plasticizing in injection molding machine forms the plastic liquid of melting, and is stored in
In injection molding machine, holding temperature is 225 DEG C in injecting machine material tube；
S4: die closing injection molding: injection mold die closing, injection molding machine inject the plastic liquid of molten condition into mold；
S5: pressure maintaining: injection molding machine persistent pressure into mold, dwell pressure 60MPa, dwell time 14S；
S6: cooling: injection mold to be cooled down by cooling water, the temperature of cooling water is 15 DEG C；
S7: die sinking.
Embodiment ten:
A kind of Shooting Technique of dialysis dry powder bag plastic interface, comprising the following steps:
S1: ingredient: ingredient is carried out to plastic grain by proportioning machine, the plastic grain of ingredient is high density polyethylene (HDPE)；
S2: feeding: will be in the plastic grain conveying feeding to injection molding machine in proportioning machine；
S3: heating plasticizing: the plastic grain of solid heating plasticizing in injection molding machine forms the plastic liquid of melting, and is stored in
In injection molding machine, holding temperature is 225 DEG C in injecting machine material tube；
S4: die closing injection molding: injection mold die closing, injection molding machine inject the plastic liquid of molten condition into mold；
S5: pressure maintaining: injection molding machine persistent pressure into mold, dwell pressure 60MPa, dwell time 10S；
S6: cooling: injection mold to be cooled down by cooling water, the temperature of cooling water is 14 DEG C；
S7: die sinking.
Embodiment 11:
A kind of Shooting Technique of dialysis dry powder bag plastic interface, comprising the following steps:
S1: ingredient: ingredient is carried out to plastic grain by proportioning machine, the plastic grain of ingredient is high density polyethylene (HDPE)；
S2: feeding: will be in the plastic grain conveying feeding to injection molding machine in proportioning machine；
S3: heating plasticizing: the plastic grain of solid heating plasticizing in injection molding machine forms the plastic liquid of melting, and is stored in
In injection molding machine, holding temperature is 225 DEG C in injecting machine material tube；
S4: die closing injection molding: injection mold die closing, injection molding machine inject the plastic liquid of molten condition into mold；
S5: pressure maintaining: injection molding machine persistent pressure into mold, dwell pressure 60MPa, dwell time 10S；
S6: cooling: injection mold to be cooled down by cooling water, the temperature of cooling water is 19 DEG C；
S7: die sinking.
Table one is the direct observation data for the product that the technique of embodiment one to embodiment 11 is produced, wherein implementing
Example one is to embodiment third is that the experimental data of technological parameter of the invention, embodiment five to embodiment ten is first is that saturating to find injection molding
The test of progress during analysis dry powder bag plastic interface Shooting Technique optimal parameter.
Table one
By the experimental data in table one it is found that the production technology of embodiment one, embodiment two and embodiment three is produced
Product glossiness it is normal, product strength is qualified, and color is normal, and buckling deformation is also not present, and sealing effect is qualified, compares other
Technological parameter has apparent progress.
Comparative example one, embodiment six and embodiment seven, it is known that when dwell pressure is excessive, the product of injection molding
It is easy to produce overlap, will affect sealing effect and assembly difficulty, while can also make because dwell pressure is excessive in pressure maintaining
Local plastic liquid is overly compressed and generates hickie in the process, influences surface quality；When dwell pressure is too small, then plastics
Binding force of the fluid in die cavity is weaker, and plastic liquid is it is also possible to die cavity cannot be filled up completely, so as to cause finished product
Intensity is low, surface quality is poor, and integrally binding force is low for the outer surface of the product even product of injection molding, if binding force is low
Crackle can be formed because of combining discontinuous, when stress is easy the deformation along binding force not strong gap and is broken.
Comparative example one, embodiment eight and embodiment nine, it is known that when the dwell time is too long, the product of injection molding
It is easy to produce overlap, will affect sealing effect and assembly difficulty, while can also make because dwell pressure is excessive in pressure maintaining
Local plastic liquid is overly compressed and generates hickie in the process, influences surface quality；When the dwell time is too short, then plastics
Binding force of the fluid in die cavity is weaker, and plastic liquid is it is also possible to die cavity cannot be filled up completely, the outer surface of product is very
To the product of injection molding, integrally binding force is low, can form crackle because of in conjunction with discontinuous if binding force is low, stress
Shi Rongyi deforms fracture along the not strong gap of binding force.
Comparative example one, embodiment ten and embodiment 11, it is known that the temperature of cooling water is too low, then mold
Temperature is lower, and in injection molding, mobility of the plastic liquid in die cavity is poor, the plastic liquid speed cooling in die cavity side-walls
Fastly, the binding ability of plastic liquid is also poor herein, can make that the intensity of molding product is low, surface forms and splits in conjunction with discontinuous
Line；If the temperature of cooling water is excessively high, cooling time can be elongated, so that the total sulfur control of single injection-molded is elongated, reduces
Production efficiency, at the same cooling water temperature it is excessively high may also will lead to it is cooling after finished product temperature it is still higher, so that product be made to exist
Buckling deformation occurs after demoulding.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (8)
1. a kind of Shooting Technique of dialysis dry powder bag plastic interface, comprising the following steps: S1: ingredient: by proportioning machine to plastics
Particle carries out ingredient；S2: feeding: will be in the plastic grain conveying feeding to injection molding machine in proportioning machine；S3: heating plasticizing: Gu
The plastic grain of body heating plasticizing in injection molding machine, forms the plastic liquid of melting, and is stored in injection molding machine；S4: die closing note
Modeling: injection mold die closing, injection molding machine inject the plastic liquid of molten condition into mold；S5: pressure maintaining: injection molding machine is into mold
Persistent pressure；S6: cooling: injection mold being cooled down by cooling water；S7: die sinking；It is characterized in that, in step S3
Holding temperature between 225 DEG C~255 DEG C；Between 60MPa~80MPa, the dwell time is dwell pressure in step S5
10S~13S；The water temperature of cooling water is between 15 DEG C~18 DEG C in step S6.
2. a kind of Shooting Technique of dialysis dry powder bag plastic interface according to claim 1, which is characterized in that in step S3
Holding temperature at 245 DEG C.
3. a kind of Shooting Technique of dialysis dry powder bag plastic interface according to claim 1, which is characterized in that in step S5
Dwell pressure be 70MPa.
4. a kind of Shooting Technique of dialysis dry powder bag plastic interface according to claim 1, which is characterized in that in step S5
Dwell time be 12S.
5. a kind of Shooting Technique of dialysis dry powder bag plastic interface according to claim 1, which is characterized in that in step S6
The water temperature of cooling water is 16 DEG C.
6. a kind of Shooting Technique of dialysis dry powder bag plastic interface according to claim 1, which is characterized in that step S1
In, plastic grain is high density polyethylene (HDPE).
7. a kind of Shooting Technique of dialysis dry powder bag plastic interface according to claim 1, which is characterized in that in step S4
In, injection mold is molded using two injection points.
8. a kind of Shooting Technique of dialysis dry powder bag plastic interface according to claim 1, which is characterized in that in pressure maintaining
Feeding is carried out simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811566988.2A CN109676887A (en) | 2018-12-19 | 2018-12-19 | A kind of Shooting Technique of dialysis dry powder bag plastic interface |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811566988.2A CN109676887A (en) | 2018-12-19 | 2018-12-19 | A kind of Shooting Technique of dialysis dry powder bag plastic interface |
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| CN109676887A true CN109676887A (en) | 2019-04-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112140461A (en) * | 2020-09-22 | 2020-12-29 | 中山市泽一照明科技有限公司 | High-efficiency energy-saving plastic part injection molding process |
| CN113829576A (en) * | 2021-07-16 | 2021-12-24 | 苏州耐思特塑胶有限公司 | Double-color injection molding process of sealing element |
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| CN206730141U (en) * | 2016-08-02 | 2017-12-12 | 杭州环申包装新材料股份有限公司 | A kind of dialysis powder bag interface |
| CN108403426A (en) * | 2018-02-23 | 2018-08-17 | 浙江济民制药股份有限公司 | The special dry powder bag of the online B dry powder of haemodialysis |
| CN207871207U (en) * | 2017-06-12 | 2018-09-18 | 吉林省富生医疗器械有限公司 | A kind of haemodialysis dry powder cylinder |
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| CN112140461A (en) * | 2020-09-22 | 2020-12-29 | 中山市泽一照明科技有限公司 | High-efficiency energy-saving plastic part injection molding process |
| CN113829576A (en) * | 2021-07-16 | 2021-12-24 | 苏州耐思特塑胶有限公司 | Double-color injection molding process of sealing element |
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Application publication date: 20190426 |