CN110260014A - A kind of unleaded faucet inner core and preparation method thereof - Google Patents
A kind of unleaded faucet inner core and preparation method thereof Download PDFInfo
- Publication number
- CN110260014A CN110260014A CN201910536595.5A CN201910536595A CN110260014A CN 110260014 A CN110260014 A CN 110260014A CN 201910536595 A CN201910536595 A CN 201910536595A CN 110260014 A CN110260014 A CN 110260014A
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- inner core
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- unleaded
- injection
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- 238000002360 preparation method Methods 0.000 title description 4
- 239000000463 material Substances 0.000 claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 claims abstract description 25
- 230000001681 protective effect Effects 0.000 claims abstract description 25
- 229920003023 plastic Polymers 0.000 claims abstract description 20
- 239000004033 plastic Substances 0.000 claims abstract description 20
- 238000002347 injection Methods 0.000 claims description 57
- 239000007924 injection Substances 0.000 claims description 57
- 238000001746 injection moulding Methods 0.000 claims description 34
- 238000000465 moulding Methods 0.000 claims description 28
- 102000010637 Aquaporins Human genes 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 18
- 238000012360 testing method Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 12
- 230000006641 stabilisation Effects 0.000 claims description 10
- 238000011105 stabilization Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000007689 inspection Methods 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000004781 supercooling Methods 0.000 claims description 6
- 238000009736 wetting Methods 0.000 claims description 6
- 108010063290 Aquaporins Proteins 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 108091006146 Channels Proteins 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000003651 drinking water Substances 0.000 abstract description 3
- 235000020188 drinking water Nutrition 0.000 abstract description 3
- 231100000252 nontoxic Toxicity 0.000 abstract description 3
- 230000003000 nontoxic effect Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 239000006173 Good's buffer Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000126 substance Substances 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
- B29C45/14—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
-
- 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
- B29C45/7653—Measuring, controlling or regulating mould clamping forces
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
-
- 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
- B29C2945/76551—Time
- B29C2945/76561—Time duration
-
- 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)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of unleaded faucet inner core, including inner core body, the inner core body is food grade plastic material inner core, is internally provided with interconnected intake tunnel and exhalant canal;Nut inserts, the nut inserts are fixed on the inside of the intake tunnel inlet;Protective case, the protective case complete cycle gapless are wrapped in the outside of the inner core body.The invention further particularly discloses a kind of above-mentioned production methods of unleaded faucet inner core.By using the unleaded faucet inner core not only material non-toxic of above-mentioned technique production, without lead, meet the demand that people are healthy, environmentally friendly for drinking water now, and in daily installation, transport or handling process, unleaded faucet inner core is not easily susceptible to damage, and the quality of product is made to have certain guarantee.In addition, the unleaded faucet inner core also has, intensity is high, product function is reliable and stable, long service life, and the advantage that manufacturing cost is cheap, manufacture is easy is conducive to expanding production and popularization and use.
Description
Technical field
The present invention relates to bathroom or technical field of taps for kitchen use, concretely relate to a kind of unleaded faucet inner core
And preparation method thereof.
Background technique
Currently, the production method of unleaded faucet inner core in the market is as follows: nut inserts being put into Internal core mould first
Interior, straight forming is at product after then plastic cement is injected into mold cavity by certain technical parameter by injection molding machine.Due to nothing
Lead water faucet inner core is made of using plastic material, and intensity is relatively limited, and its after mounting between shell there are
Certain space, therefore inner core molding in this way is easy to be damaged in subsequent assembling and transportational process, gives finished product
Installation cause certain hidden danger of quality.
And in the prior art in order to overcome this above-mentioned technical problem, be mostly make a search in the material of inner core, although
The material of high quality can be effectively solved the above problem, but but also because making material expense it is high due to considerably increase nothing
The cost of manufacture of lead water faucet inner core makes this unleaded faucet inner core be difficult to be generalized application.In addition, being there are also a kind of structure
Loose iron sand is filled between inner core and shell, but is found after actually using, and this structure can not play very inner core
Good buffer function, inner core are still easily damaged.
Therefore design a kind of not easily damaged and low manufacture cost unleaded faucet inner core, be those skilled in the art urgently
Problem to be solved.
Summary of the invention
In view of this, to overcome the problems, such as the above-mentioned prior art, the present invention provides a kind of unleaded faucet inner core and its
Production method.
To achieve the goals above, the present invention adopts the following technical scheme:
On the one hand, the present invention provides a kind of unleaded faucet inner cores, including
Inner core body, the inner core body are food grade plastic material inner core, and it is logical to be internally provided with interconnected water inlet
Road and exhalant canal;
Nut inserts, the nut inserts are fixed on the inside of the intake tunnel inlet;
Protective case, the protective case complete cycle gapless are wrapped in the outside of the inner core body.
By using above-mentioned technical proposal, a kind of unleaded faucet inner core of the present invention, firstly, inner core body uses food-grade
Plastic material is made, and ensure that passed through water quality is unaffected;Enter secondly, nut inserts has been fixed on intake tunnel
Inside at mouthful, when it is connected with hose tooth head, it can be ensured that the intensity of the junction is enough, does not influence hot and cold water in high pressure
Enter inner core body under state;Again, the present invention inner core body external complete cycle it is gapless wrapped up one layer of protective case, should
Protective case can be made it be not easily susceptible to damage in daily installation, transport or handling process, be mentioned significantly with effective protection inner core
The high quality of unleaded faucet inner core, at the same time, because of simple processing, the cost of material is low, and the present invention is compared to the prior art
Also there is very big cost advantage, there is very strong product competitiveness in the market.
Based on the above technical solution, the present invention can also make following improvement:
Preferably, the intake tunnel includes cold water channel and hot water channel, and there are two the nut inserts, is fixed respectively
In the inside of the cold water channel, the inlet of the hot water channel.
Preferably, the inner core body between the cold water channel, the hot water channel and exhalant canal connection
One is equipped with for installing the gap slot of spool, offers opening corresponding with the gap slot on the protective case.
Preferably, the inner core body and the protective case are an integral molding structure.
Inner core body and protective case integrated injection molding not only make inner core body structure stronger and are not easy to reveal,
Entire unleaded faucet inner core is made to be provided with self structure intensity simultaneously high, reliable and stable, long service life, manufacturing cost is low
Honest and clean advantage.
On the other hand, the present invention also provides a kind of production methods of unleaded faucet inner core, comprising the following steps:
S1: the molding of inner core body
A, inner core body mold is installed on injection molding machine, adjusts die height and injection molding machine nozzle, the temperature of barrel;
B, technological parameter is set, technological parameter include injection pressure and speed, injection time, cooling time, die sinking position,
It is opened pressure and speed, clamping pressure and speed;
C, when injection molding machine nozzle, the temperature of barrel reach set temperature value, mold is opened, by the nut of state's dimensioning
Inserts is put on the fixation position of mold, then shuts mold;
D, after the food grade plastic materials on injection molding machine being heated by injecting machine material tube, then by the food grade plastic of melting
Material injection enters in mold cavity, and after supercooling and pressure maintaining, the inner core body of the molding inserts containing nut is taken out in die sinking
Part;
S2: the stabilization of inner core body and the inspection of nut inserts
The inner core body of the inserts after molding containing nut is subjected to room temperature standing, while checking that the tooth size of nut inserts is
No variation;
S3: the test of inner core body
The inner core body of the inserts containing nut after stabilization is attached to the test that hydraulic pressure, flow are carried out on examination wetting system, confirmation
Whether it complies with standard;
S4: the molding of protective case
A, protection mold is installed on injection molding machine, adjusts die height and injection molding machine nozzle, the temperature of barrel;
B, technological parameter is set, technological parameter include injection pressure and speed, injection time, cooling time, die sinking position,
It is opened pressure and speed, clamping pressure and speed;
C, when injection molding machine nozzle, the temperature of barrel reach set temperature value, mold is opened, it will be in inserts containing nut
Core ontology is put on the fixation position of mold, then shuts mold;
D, after heating the injected plastics material on injection molding machine by injecting machine material tube, then the injected plastics material of melting is injected into mould
Tool type is intracavitary, and after supercooling and pressure maintaining, unleaded faucet inner core product is taken out in die sinking;
E, unleaded faucet inner core product is put into 15-25 DEG C of water, is taken out after 4-8 minutes;
S5: the inspection of nut inserts and the test of unleaded faucet inner core
It checks whether the tooth size of the nut inserts of molding unleaded faucet inner core product completely changes, finally again will
Unleaded faucet inner core is attached to the test that hydraulic pressure, flow are carried out on examination wetting system, and finished product is completed after complying with standard.
Preferably, in step sl, inner core body mold is installed on injection molding machine, adjustment die height to just mode locking
Until locked mode pressure reaches 40-60Mpa afterwards, then injection molding machine nozzle stabilization is transferred to 190-210 DEG C, the first segment temperature of barrel
185-205 DEG C, 180-200 DEG C of the second segment temperature of barrel.
Preferably, in step sl, technological parameter is arranged are as follows:
Injection pressure and speed: first segment injection pressure is 35-55bar, injection speed 30-50cm/s;Second segment note
Injection pressure is 30-50bar, injection speed 25-45cm/s;
Injection time: 5-7s;
Cooling time: 15-25s;
Die sinking position: 280-320mm;
Be opened pressure and speed: it is 30-50bar, opening speed 30-50cm/s that first segment, which is opened pressure,;Second segment is opened
Molding pressure is 40-60bar, opening speed 50-70cm/s;It is 40-60bar, opening speed 35- that third section, which is opened pressure,
55cm/s;
Clamping pressure and speed: first segment clamping pressure is 30-50bar, closure pressing speed 35-55cm/s;Second segment closes
Molding pressure is 40-60bar, closure pressing speed 50-70cm/s;Third section clamping pressure is 30-50bar, closure pressing speed 30-
50cm/s。
Preferably, in step s 2, the time that the inner core body room temperature of the inserts after molding containing nut is stood is that 22-26 is small
When.
Preferably, in step s 4, protection mold is installed on injection molding machine, after adjusting die height to just mode locking
Until locked mode pressure reaches 40-60Mpa, then injection molding machine nozzle stabilization is transferred to 170-190 DEG C, the first segment temperature 165- of barrel
185 DEG C, 160-180 DEG C of the second segment temperature of barrel.
Preferably, in step s 4, technological parameter is arranged are as follows:
Injection pressure and speed: first segment injection pressure is 63-83bar, injection speed 25-45cm/s;Second segment note
Injection pressure is 60-80bar, injection speed 25-45cm/s;Third section injection pressure is 55-75bar, injection speed 25-
45cm/s;
Injection time: 8-12s;
Cooling time: 45-55s;
Die sinking position: 280-320mm;
Be opened pressure and speed: it is 30-50bar, opening speed 30-50cm/s that first segment, which is opened pressure,;Second segment is opened
Molding pressure is 40-60bar, opening speed 40-60cm/s;It is 40-60bar, opening speed 50- that third section, which is opened pressure,
70cm/s;
Clamping pressure and speed: first segment clamping pressure is 40-60bar, closure pressing speed 50-70cm/s;Second segment closes
Molding pressure is 40-60bar, closure pressing speed 40-600cm/s;Third section clamping pressure is 30-50bar, closure pressing speed 20-
40cm/s。
By using the unleaded faucet inner core not only material non-toxic of above-mentioned technique production, lead is free of, people now is met
For drinking water health, the demand of environmental protection, and in daily installation, transport or handling process, in unleaded tap
Core is not easily susceptible to damage, and the quality of product is made to have certain guarantee.In addition, the unleaded faucet inner core also have intensity it is high,
Product function is reliable and stable, long service life, and the advantage that manufacturing cost is cheap, manufacture is easy is conducive to expanding production and popularization
It uses.
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
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 attached drawing is a kind of main view of unleaded faucet inner core provided by the invention.
Fig. 2 attached drawing is the sectional view of A-A in Fig. 1.
Fig. 3 attached drawing is a kind of bottom view of unleaded faucet inner core provided by the invention.
Fig. 4 attached drawing is the sectional view of B-B in Fig. 3.
Fig. 5 attached drawing is a kind of top view of unleaded faucet inner core provided by the invention.
Fig. 6 attached drawing is a kind of left view of unleaded faucet inner core provided by the invention.
Fig. 7 attached drawing is a kind of right view of unleaded faucet inner core provided by the invention.
Fig. 8 attached drawing is a kind of rearview of unleaded faucet inner core provided by the invention.
Wherein, in figure,
1- inner core body,
11- intake tunnel, 12- exhalant canal, 13- gap slot;
2- nut inserts;
3- protective case,
31- opening.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can
To be mechanical connection, it is also possible to be electrically connected;It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment:
As shown in figures 1-8, the embodiment of the invention discloses a kind of unleaded faucet inner cores comprising inner core body 1, inner core
Ontology 1 is made using food grade plastic material, and it is logical that interconnected intake tunnel 11 and water outlet are equipped with inside inner core body 1
Road 12, intake tunnel 11 include cold water channel and hot water channel;Nut inserts 2, there are two nut inserts 2, is individually fixed in cold
Aquaporin, hot water channel inlet inside;Protective case 3, protective case 3 complete cycle gapless are wrapped in the outside of inner core body 1
And inner core body 1 and protective case 3 are an integral molding structure.Between cold water channel, hot water channel and the connection of exhalant canal 12
Inner core body 1 be equipped with one for installing the gap slot 13 of spool, offered on protective case 3 corresponding with gap slot 13
Opening 31, spool are mounted on the unleaded faucet inner core by opening 31 and gap slot 13.
The embodiment of the invention also discloses a kind of production methods of unleaded faucet inner core, comprising the following steps:
S1: the molding of inner core body 1
A, inner core body mold is installed on injection molding machine, locked mode pressure reaches after adjusting die height to just mode locking
Until 40-60Mpa, then injection molding machine nozzle stabilization is transferred to 190-210 DEG C, preferably 200 DEG C, the first segment temperature 185- of barrel
205 DEG C, preferably 195 DEG C, 180-200 DEG C of the second segment temperature of barrel, preferably 190 DEG C;
B, technological parameter is set, technological parameter include injection pressure and speed, injection time, cooling time, die sinking position,
It is opened pressure and speed, clamping pressure and speed;
Specifically:
Injection pressure and speed: first segment injection pressure is 35-55bar, preferably 45bar, injection speed 30-
50cm/s, preferably 40cm/s;Second segment injection pressure be 30-50bar, preferably 40bar, injection speed 25-45cm/s,
Preferably 35cm/s;
Injection time: 5-7s, preferably 6s;
Cooling time: 15-25s, preferably 20s;
Die sinking position: 280-320mm, preferably 300mm;
Be opened pressure and speed: it is 30-50bar, preferably 40bar, opening speed 30- that first segment, which is opened pressure,
50cm/s, preferably 40cm/s;Second segment be opened pressure be 40-60bar, preferably 50bar, opening speed 50-70cm/s,
Preferably 60cm/s;Third section is opened pressure for 40-60bar, preferably 50bar, opening speed 35-55cm/s, preferably
45cm/s;
Clamping pressure and speed: first segment clamping pressure is 30-50bar, preferably 40bar, closure pressing speed 35-
55cm/s, preferably 45cm/s;Second segment clamping pressure be 40-60bar, preferably 50bar, closure pressing speed 50-70cm/s,
Preferably 60cm/s;Third section clamping pressure be 30-50bar, preferably 40bar, closure pressing speed 30-50cm/s, preferably
40cm/s。
C, when injection molding machine nozzle, the temperature of barrel reach set temperature value, mold is opened, state's dimensioning is (excessively logical
No-go gage) nut inserts 2 be put on the fixation position of mold, then shut mold;
D, after the food grade plastic materials on injection molding machine being heated by injecting machine material tube, then by the food grade plastic of melting
Material injection enters in mold cavity, and after supercooling and pressure maintaining, the inner core body of molding inserts containing nut 2 is taken out in die sinking
1 part;
S2: the stabilization of inner core body 1 and the inspection of nut inserts 2
The inner core body 1 of inserts containing nut after molding 2 is subjected to room temperature and stands 22-26 hours, to ensure plastic core
It can be formed and be eliminated as much as completely internal internal stress, prevent that unstable shape occurs in the subsequent use process of inner core body 1
Condition, while checking whether the tooth size of the nut inserts 2 in inner core body 1 keeps original size constancy using go-no go gauge;
S3: the test of inner core body 1
The inner core body 1 of inserts containing nut after stabilization 2 is attached to the survey that hydraulic pressure, flow are carried out on corresponding examination wetting system
Examination, confirms whether hydraulic pressure and flow comply with standard;
S4: the molding of protective case 3
A, protection mold is installed on injection molding machine, locked mode pressure reaches 40- after adjusting die height to just mode locking
Until 60Mpa, then injection molding machine nozzle stabilization is transferred to 170-190 DEG C, preferably 180 DEG C, the first segment temperature 165-185 of barrel
DEG C, preferably 175 DEG C, 160-180 DEG C of the second segment temperature of barrel, preferably 170 DEG C;
B, technological parameter is set, technological parameter include injection pressure and speed, injection time, cooling time, die sinking position,
It is opened pressure and speed, clamping pressure and speed;
Specifically:
Injection pressure and speed: first segment injection pressure is 63-83bar, preferably 73bar, injection speed 25-
45cm/s, preferably 35cm/s;Second segment injection pressure be 60-80bar, preferably 70bar, injection speed 25-45cm/s,
Preferably 35cm/s;Third section injection pressure be 55-75bar, preferably 65bar, injection speed 25-45cm/s, preferably
35cm/s;
Injection time: 8-12s, preferably 10s;
Cooling time: 45-55s, preferably 50s;
Die sinking position: 280-320mm, preferably 300mm;
Be opened pressure and speed: it is 30-50bar, preferably 40bar, opening speed 30- that first segment, which is opened pressure,
50cm/s, preferably 40cm/s;Second segment be opened pressure be 40-60bar, preferably 50bar, opening speed 40-60cm/s,
Preferably 50cm/s;Third section is opened pressure for 40-60bar, preferably 50bar, opening speed 50-70cm/s, preferably
60cm/s;
Clamping pressure and speed: first segment clamping pressure is 40-60bar, preferably 50bar, closure pressing speed 50-
70cm/s, preferably 60cm/s;Second segment clamping pressure be 40-60bar, preferably 50bar, closure pressing speed 40-60cm/s,
Preferably 50cm/s;Third section clamping pressure be 30-50bar, preferably 40bar, closure pressing speed 20-40cm/s, preferably
30cm/s;
C, when injection molding machine nozzle, the temperature of barrel reach set temperature value, mold is opened, it will be molding in step S1
The inner core body 1 of inserts containing nut 2 is put on the fixation position of mold, then shuts mold;
D, after the injected plastics material on injection molding machine being heated by injecting machine material tube, then by the injected plastics material high-pressure injection of melting
Enter in mold cavity, after supercooling, heat preservation and pressure maintaining, unleaded faucet inner core product is taken out in die sinking;
E, unleaded faucet inner core product is put into 15-25 DEG C of water, is taken out after 4-8 minutes;
S5: the inspection of nut inserts and the test of unleaded faucet inner core
Check whether the tooth size of the nut inserts 2 of molding unleaded faucet inner core product completely changes, finally again
Unleaded faucet inner core is attached to the test for carrying out hydraulic pressure, flow on examination wetting system, finished product is completed after complying with standard.
The following are relevant test datas of the invention:
(1), weight is tested: using 100 kilograms of object pressures respectively in the axially and radially direction of unleaded faucet inner core product
Firmly 2 hours, there is no deformations for product, phenomena such as embrittlement.
(2), fall test again: the position vertical natural by unleaded faucet inner core product from 6 meters high is fallen down, and is hit in hard
On face, there is no deforming embrittlement to product.
In addition, product of the present invention is detected through the maximum inspection in the whole world, test and certification authority SGS, while being closed to 198 kinds high
Note substance (SVHC) carries out screening test, and material concentration is both less than 0.1%.
It is tests determined, the unleaded faucet inner core produced by the above method is environmentally friendly, it is nontoxic, be free of lead, Neng Gouman
The sufficient people now demand healthy, environmentally friendly for drinking water, and in daily installation, transport or handling process, the knot
The unleaded faucet inner core of structure is not easily susceptible to damage because of the protective action of protective case 3, and the quality of product is made to have certain guarantor
Card.
The unleaded faucet inner core of the present invention also has intensity height, product function reliable and stable, long service life, manufacturing cost
Advantage cheap, manufacture is easy, is conducive to expanding production and popularization and use.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of unleaded faucet inner core, which is characterized in that including
Inner core body (1), the inner core body (1) are food grade plastic material inner core, are internally provided with interconnected water inlet
Channel (11) and exhalant canal (12);
Nut inserts (2), the nut inserts (2) are fixed on the inside of the intake tunnel (11) inlet;
Protective case (3), protective case (3) the complete cycle gapless are wrapped in the outside of the inner core body (1).
2. a kind of unleaded faucet inner core according to claim 1, which is characterized in that the intake tunnel (11) includes cold
Aquaporin and hot water channel, there are two the nut inserts (2), is individually fixed in the cold water channel, the hot water channel
The inside of inlet.
3. a kind of unleaded faucet inner core according to claim 2, which is characterized in that the cold water channel, the hot water
Channel connect with the exhalant canal (12) between the inner core body (1) be equipped with one for installing the gap slot of spool
(13), opening (31) corresponding with the gap slot (13) is offered on the protective case (3).
4. a kind of unleaded faucet inner core according to claim 1, which is characterized in that the inner core body (1) and described
Protective case (3) is an integral molding structure.
5. a kind of production method of unleaded faucet inner core, which comprises the following steps:
S1: the molding of inner core body (1)
A, inner core body mold is installed on injection molding machine, adjusts die height and injection molding machine nozzle, the temperature of barrel;
B, technological parameter is set, and technological parameter includes injection pressure and speed, injection time, cooling time, die sinking position, die sinking
Pressure and speed, clamping pressure and speed;
C, when injection molding machine nozzle, the temperature of barrel reach set temperature value, mold is opened, by the nut inserts of state's dimensioning
(2) it is put on the fixation position of mold, then shuts mold;
D, after the food grade plastic materials on injection molding machine being heated by injecting machine material tube, then by the food grade plastic materials of melting
It is injected into mold cavity, after supercooling and pressure maintaining, the inner core body of molding inserts containing nut (2) is taken out in die sinking
(1) part;
S2: the stabilization of inner core body (1) and the inspection of nut inserts (2)
The inner core body (1) of inserts containing nut after molding (2) is subjected to room temperature standing, while checking the tooth of nut inserts (2)
Whether size changes;
S3: the test of inner core body (1)
The inner core body (1) of inserts containing nut (2) after stabilization is attached to the test that hydraulic pressure, flow are carried out on examination wetting system, really
Recognize whether it complies with standard;
S4: the molding of protective case (3)
A, protective case (3) mold is installed on injection molding machine, adjusts die height and injection molding machine nozzle, the temperature of barrel;
B, technological parameter is set, and technological parameter includes injection pressure and speed, injection time, cooling time, die sinking position, die sinking
Pressure and speed, clamping pressure and speed;
C, when injection molding machine nozzle, the temperature of barrel reach set temperature value, mold is opened, the interior of nut inserts (2) will be contained
Core ontology (1) is put on the fixation position of mold, then shuts mold;
D, after heating the injected plastics material on injection molding machine by injecting machine material tube, then the injected plastics material of melting is injected into mould type
Intracavitary, after supercooling and pressure maintaining, unleaded faucet inner core product is taken out in die sinking;
E, unleaded faucet inner core product is put into 15-25 DEG C of water, is taken out after 4-8 minutes;
S5: the inspection of nut inserts (2) and the test of unleaded faucet inner core
It checks whether the tooth size of the nut inserts (2) of molding unleaded faucet inner core product completely changes, finally again will
Unleaded faucet inner core is attached to the test that hydraulic pressure, flow are carried out on examination wetting system, and finished product is completed after complying with standard.
6. a kind of production method of unleaded faucet inner core according to claim 5, which is characterized in that in step sl,
Inner core body mold is installed on injection molding machine, locked mode pressure reaches 40-60Mpa and is after adjusting die height to just mode locking
Only, then injection molding machine nozzle is stablized and is transferred to 190-210 DEG C, 185-205 DEG C of the first segment temperature of barrel, the second segment temperature of barrel
180-200℃。
7. a kind of production method of unleaded faucet inner core according to claim 5, which is characterized in that in step sl,
Technological parameter setting are as follows:
Injection pressure and speed: first segment injection pressure is 35-55bar, injection speed 30-50cm/s;Second segment injection pressure
Power is 30-50bar, injection speed 25-45cm/s;
Injection time: 5-7s;
Cooling time: 15-25s;
Die sinking position: 280-320mm;
Be opened pressure and speed: it is 30-50bar, opening speed 30-50cm/s that first segment, which is opened pressure,;Second segment mold breakaway cylinder
Power is 40-60bar, opening speed 50-70cm/s;It is 40-60bar, opening speed 35-55cm/ that third section, which is opened pressure,
s;
Clamping pressure and speed: first segment clamping pressure is 30-50bar, closure pressing speed 35-55cm/s;Second segment molding pressure
Power is 40-60bar, closure pressing speed 50-70cm/s;Third section clamping pressure is 30-50bar, closure pressing speed 30-50cm/
s。
8. a kind of production method of unleaded faucet inner core according to claim 5, which is characterized in that in step s 2,
The time that inner core body (1) room temperature of inserts containing nut (2) after molding is stood is 22-26 hours.
9. a kind of production method of unleaded faucet inner core according to claim 5, which is characterized in that in step s 4,
Protective case (3) mold is installed on injection molding machine, locked mode pressure reaches 40-60Mpa and is after adjusting die height to just mode locking
Only, then injection molding machine nozzle is stablized and is transferred to 170-190 DEG C, 165-185 DEG C of the first segment temperature of barrel, the second segment temperature of barrel
160-180℃。
10. a kind of production method of unleaded faucet inner core according to claim 5, which is characterized in that in step s 4,
Technological parameter setting are as follows:
Injection pressure and speed: first segment injection pressure is 63-83bar, injection speed 25-45cm/s;Second segment injection pressure
Power is 60-80bar, injection speed 25-45cm/s;Third section injection pressure is 55-75bar, injection speed 25-45cm/
s;
Injection time: 8-12s;
Cooling time: 45-55s;
Die sinking position: 280-320mm;
Be opened pressure and speed: it is 30-50bar, opening speed 30-50cm/s that first segment, which is opened pressure,;Second segment mold breakaway cylinder
Power is 40-60bar, opening speed 40-60cm/s;It is 40-60bar, opening speed 50-70cm/ that third section, which is opened pressure,
s;
Clamping pressure and speed: first segment clamping pressure is 40-60bar, closure pressing speed 50-70cm/s;Second segment molding pressure
Power is 40-60bar, closure pressing speed 40-60cm/s;Third section clamping pressure is 30-50bar, closure pressing speed 20-40cm/
s。
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