CN102518854A - Hollow integrated type plastic faucet water-channel part and preparation method thereof - Google Patents
Hollow integrated type plastic faucet water-channel part and preparation method thereof Download PDFInfo
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- CN102518854A CN102518854A CN2011104484128A CN201110448412A CN102518854A CN 102518854 A CN102518854 A CN 102518854A CN 2011104484128 A CN2011104484128 A CN 2011104484128A CN 201110448412 A CN201110448412 A CN 201110448412A CN 102518854 A CN102518854 A CN 102518854A
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Abstract
The invention provides a hollow integrated type plastic faucet water-channel part and a preparation method thereof and relates to a faucet. The hollow integrated type plastic faucet water-channel part is provided with a cold/hot water inlet part and a cold/hot water outlet part, which are integrated with each other, wherein the cold/hot water inlet part and the cold/hot water outlet part, which are integrated with each other, are connected in a welding form and are both formed in a core-melting casting manner. The preparation method comprises the following steps: mounting an easily melted core; assembling a mould and injecting; curing the part and melting the core; casting the core; opening the mould and taking out the part; cleaning the part; and welding the part. According to the preparation method, a hollow irregular entire structural part which cannot be subjected to core pulling can be produced; the integrity of the water-channel part is increased; the hollow shaping of thermosetting plastic is realized; the mould structure is simplified; the mould cost is lowered; the core-melting casting and part-shaping streamline continuous production is realized; the curing for the part, the melting for the easily melted core and the casting for the easily melted core are combined and performed at the same time; the heat energy is fully utilized; the production cost is lowered; and the production efficiency is increased.
Description
Technical field
The present invention relates to a kind of water tap, especially relate to a kind of hollow integral type plastic faucet water channel parts and preparation method thereof.
Background technique
Conventional injection-moulding plastic method is to process core with steel to be combined into mould on injection machine the injection moulding product identical with product shape appearance with die cavity through constitutional detail, when product is got in die sinking, will extract core out earlier, and product could take out.For the product of complicacy, need a plurality of even not equidirectional cores of taking out sometimes.Mould structure is very complicated like this, and it is very big to manufacture and design difficulty.For the product such as the interior big young special-shaped back cover hole of special shape, then can't realize loosing core, also just can't shot molded integral product.The working of plastics that on injecting forming structure, is difficult to the demoulding; During like the hollow working of plastics of complicated shapes such as oil delivering pipe of car and air inlet-outlet pipe; Generally be with they moulding in two; And then piece together, be made in like this under the less demanding situation and can meet the demands, but relatively poor because of sealing under a lot of situation, boundary dimension increases some problems of bringing.
Change fusible core into if will loose core, can realize that then not having core loose injection mould moulds.Promptly process meltable core, solidify the meltable core of back fusing, it is become to take out product after fluid flows out outside the mould at product with low-melting alloy.So just can save complicated core-pulling mechanism, mould structure is greatly simplified, both reduce the mold design manufacture difficulty, practice thrift cost again, more solved the integral injection molding problem of the complicated product that can't loose core.
The application discloses a kind of plastics embedding water tap water channel assembly that belongs to covered with gold leaf and preparation method thereof in Chinese patent CN102269291A; Said water channel assembly is provided with metal valve body, metal intake pipe, spout outlet pipe and three-way pipe; In metal valve body, be injected with embedded valve body and metal outlet pipe; In the metal intake pipe, be injected with embedded intake pipe, metal outlet pipe, spout outlet pipe are connected with three-way pipe, and the head of spout outlet pipe is embedded with threaded metal spout.Adopt secondary encapsulate embedded valve body of injection moulding mode injection moulding in metal valve body and metal outlet pipe, the embedded intake pipe of injection moulding in the metal intake pipe; Injection moulding spout outlet pipe and three-way pipe are embedded with threaded metal spout at spout outlet pipe head respectively; Metal outlet pipe, spout outlet pipe are connected with three-way pipe, promptly get product.Can remedy the deficiency of the mechanical strength of heat resistant polyethylene material own, reach the requirement of strength of metallic copper, stainless steel faucet water channel, promote heat-proof polythene water channel assembly overall performance, friendly to environment and human body.
Chinese patent CN102192351A discloses a kind of plastic cement duplex water tap water channel that does not have reverse interface; Comprise cold water inlet channel, hot water inlet channel and be communicated with water channel; The waterexit end of said cold water inlet channel is sealedly connected with the cold water valve core passage; The waterexit end of said hot water inlet channel is sealedly connected with the hot water valve core channel; Described cold water valve core passage is connected through being communicated with water channel with the hot water valve core channel, water outlet in the middle of said connection water channel outside is provided with, and described duplex water tap water channel is the plastic body of the once injection moulding of no reverse interface.The production method of water channel is also disclosed simultaneously.
Chinese patent CN1746546 discloses a kind of water tap water channel structure and production method thereof; Be applicable to that the water tap water channel comprises curved section; It comprises faucet body and water channel lid, and faucet body has open conduit, and this opening conduit surface is a smooth surface through precision machining; Water channel lid then correspondence covers on the open conduit of faucet body and fixes, and the water channel lid is a smooth surface through precision machining also corresponding to the surface of opening conduit.
Summary of the invention
The object of the present invention is to provide a kind of hollow integral type plastic faucet water channel parts and preparation method thereof.
Said hollow integral type plastic faucet water channel parts are provided with all-in-one cold and hot water water inlet member 100 and water outlet part 110, and all-in-one cold and hot water water inlet member 100 and water outlet part 110 are connected through welding manner.
Said all-in-one cold and hot water water inlet member 100 all is through the fusible core casting forming with water outlet part 110.
The preparation method of said hollow integral type plastic faucet water channel parts may further comprise the steps:
1) meltable core is installed: the meltable core of preprepared is installed in the mold cavity on the injection machine, fixing, lock mould then;
2) matched moulds injection: will in injecting systems, plastify good plastic melt and inject mold cavity;
3) product curing, core fusing: the die temperature of controlling well is lower than the solidifying temperature of product; So that make the plastics solidification that injects die cavity treat the plastics solidification degree reach can control oneself after; The fusing point (being the solidifying temperature of product) that is warming up to meltable core again makes meltable core be melted into melt, and product is solidified fully;
4) core casting: open the recloser that is located on the mould and make the metal bath of core flow into the meltable core that is located at cooled and solidified Cheng Xin in the other core model cavity of injection machine, recycle in order to next through runner;
5) die sinking pickup: treat product cooling reach requirement after die sinking take out, will go up again the meltable core of having got ready in the cyclic process pack into fixing in the die cavity, matched moulds injection again, so circulation is produced continuously;
6) clean product: the residual fraction of meltable core in the cleaning products gets all-in-one cold and hot water water inlet member and water outlet part;
7) welding of parts: the all-in-one cold and hot water water inlet member and the water outlet part of preparation are passed through welding, obtain hollow integral type plastic faucet water channel parts.
In step 1), said meltable core can be by at least two kinds of low-melting alloys of forming in tin, bismuth, copper, lead, the antimony etc., and the fusing point of said low-melting alloy can be 47～280 ℃, and hardness can be 18～35HB, and density can be 7.4～8.5Kg/dm
3
In step 2) in, the material of said plastics can be a kind of in refractory polyethylene (PE-RT), PPO (PPO), polyoxymethylene (POM), polyphenylene sulfide (PPS), the polyphtalamide (PPA) etc.
In step 4), said meltable core adopts the metal pattern casting, and the meltable core fusing of the work on injection machine is after runner flows directly into closed casting in the mould; Said runner can adopt copper or aluminum pipe and add thermal insulation layer at pipe; Said casting be to can being provided with heating, cooling system and shake unit on the housing of mould, the effect of heating be prevent that metal bath from getting into cold mould and rapidly cooling can not be full of mould, make casting before casting, keep corresponding temperature to mould; The effect of cooling is that rapid cooling adapted with casting cycle and the injection moulding cycle that guarantees meltable core after metal bath is full of die cavity; The effect of vibration also is to make metal bath be full of die cavity rapidly and guarantee that meltable core is closely knit and do not have surface hole; For guaranteeing any surface finish property of meltable core, said casting should be polished or chromium plating the internal surface of mould.When the demoulding can spray releasing agent at need.Meltable core casting cooling backsight surface condition is modified processing, to guarantee that meltable whose surfaces is bright and clean, smooth, zero defect.
In step 6), the method for said cleaning product can adopt high pressure water gun flushing or ultrasonic cleaning etc.
In step 7), said welding can be a kind of in ultrasonic welding, spin welding, the sweat soldering etc.
Compare with existing plastic faucet water channel parts, the present invention has following outstanding advantage:
1) can produce the hollow profile integral structure component that to loose core, improve the integrity of water channel components;
2) can realize the hollow molding of thermosetting plastics;
3) simplify mould structure, reduced die cost;
4) realized that fusible core casting, line of product moulding produce continuously;
5) product curing, the fusing of meltable core and the casting of meltable core combine to carry out simultaneously, have made full use of heat energy, have reduced cost of production, have improved manufacturing efficiency.
Description of drawings
Fig. 1 is an a kind of hollow integral type plastic faucet water channel parts embodiment's according to the invention structural representation.
Fig. 2 is a kind of hollow integral type plastic faucet water channel parts embodiment's according to the invention generalized section of all-in-one cold and hot water water inlet member in injection machine.
Fig. 3 is the generalized section after a kind of hollow integral type plastic faucet water channel parts embodiment's according to the invention all-in-one cold and hot water water inlet member is taken out from injector.
Fig. 4 is a kind of hollow integral type plastic faucet water channel parts embodiment's according to the invention generalized section of water outlet part in injection machine.
Fig. 5 is the generalized section after a kind of hollow integral type plastic faucet water channel parts embodiment's according to the invention water outlet part takes out from injector.
Embodiment
Following examples will combine accompanying drawing that the present invention is described further
Referring to Fig. 1～5, a kind of hollow integral type POM plastic faucet water channel parts are provided with all-in-one cold and hot water water inlet member 100 and water outlet part 110, and all-in-one cold and hot water water inlet member 100 and water outlet part 110 couple together through welding manner.Its preparation method comprises the steps:
1) meltable core is installed: the meltable core 200 of preprepared is installed in the mold cavity on the injection machine, fixing, lock mould then;
2) matched moulds injection: and polyoxymethylene POM plastics that will plasticizing is good in injecting systems (heat distortion temperature can reach 175 ℃ of 124 ℃, fusing point) melt injects mold cavity;
3) product curing, core fusing: the die temperature of controlling well is 167 ℃; Curing temperature a little less than product; So that make the plastics solidification that injects die cavity treat the plastics solidification degree reach can control oneself after; Elevated temperature also is that the solidifying temperature of product makes meltable core be melted into melt to 170 ℃ of the fusing points of meltable core again, and product is solidified fully.
4) core casting: the meltable core fusing of the work on injection machine is after the special-purpose runner of design flows directly into closed casting in the mould.Special-purpose runner can adopt copper pipe and add thermal insulation layer at pipe.On the housing of casting, be provided with heating, cooling system and shake unit to mould.The effect of heating be prevent that metal bath from getting into cold mould and rapidly cooling can not be full of mould, make casting before casting, keep corresponding temperature to mould.The effect of cooling is that rapid cooling adapted with casting cycle and the injection moulding cycle that guarantees meltable core after metal bath is full of die cavity.The effect of vibration also is to make metal bath be full of die cavity rapidly and guarantee that meltable core is closely knit and do not have surface hole.For guaranteeing any surface finish property of meltable core, casting should be polished the internal surface of mould.When the demoulding can spray releasing agent at need.Meltable core casting cooling backsight surface condition is modified processing, to guarantee that meltable whose surfaces is bright and clean, smooth, zero defect.Low-melting alloy as shown in Figure 1, that meltable core 200 is made up of metallic tin and bismuth binary metal, the chemical composition of tin are 40% of gross mass, and the chemical composition of bismuth is 60% of a gross mass, and its fusing point is at 170 ℃; Its hardness is 22HB, and its density is 8.2Kg/dm
3
5) take out parts: treat the product cooling reach requirement after die sinking take out, will go up again the meltable core of having got ready in the cyclic process pack into fixing in the die cavity, matched moulds injection again, so circulation is produced continuously; As shown in Figure 3, Fig. 3 is the generalized section after all-in-one cold and hot water water inlet member 100 is taken out from injector.
6) prepare wet part 200 with above-mentioned same method;
7) welding of parts: all-in-one cold and hot water water inlet member 100 coupled together through the ultrasonic welding mode with water outlet part 110 promptly obtain one body swimming tap water channel parts.
The above is merely preferred embodiment of the present invention, so can not limit the scope that the present invention implements with this, the equivalence of promptly being made with the scope of the invention and description changes and revises, and all should belong in the scope that the present invention contains.
Claims (10)
1. hollow integral type plastic faucet water channel parts is characterized in that being provided with all-in-one cold and hot water water inlet member and water outlet part, and all-in-one cold and hot water water inlet member is connected through welding manner with water outlet part; Said all-in-one cold and hot water water inlet member and water outlet part all are through the fusible core casting forming.
2. the preparation method of a kind of hollow integral type plastic faucet water channel parts as claimed in claim 1 is characterized in that may further comprise the steps:
1) meltable core is installed: the meltable core of preprepared is installed in the mold cavity on the injection machine, fixing, lock mould then;
2) matched moulds injection: will in injecting systems, plastify good plastic melt and inject mold cavity;
3) product curing, core fusing: the die temperature of controlling well is lower than the solidifying temperature of product; Make the plastics solidification that injects die cavity treat the plastics solidification degree reach can control oneself after; Be warming up to the fusing point of meltable core again, make meltable core be melted into melt, product is solidified fully;
4) core casting: open the recloser that is located on the mould and make the metal bath of core flow into the meltable core that is located at cooled and solidified Cheng Xin in the other core model cavity of injection machine, recycle in order to next through runner;
5) die sinking pickup: treat product cooling reach requirement after die sinking take out, will go up again the meltable core of having got ready in the cyclic process pack into fixing in the die cavity, matched moulds injection again, so circulation is produced continuously;
6) clean product: the residual fraction of meltable core in the cleaning products gets all-in-one cold and hot water water inlet member and water outlet part;
7) welding of parts: the all-in-one cold and hot water water inlet member and the water outlet part of preparation are passed through welding, obtain hollow integral type plastic faucet water channel parts.
3. the preparation method of a kind of hollow integral type plastic faucet water channel parts as claimed in claim 2 is characterized in that in step 1) said meltable core is by at least two kinds in tin, bismuth, copper, lead, the antimony low-melting alloys of forming.
4. the preparation method of a kind of hollow integral type plastic faucet water channel parts as claimed in claim 2 is characterized in that in step 1) the fusing point of said low-melting alloy is 47～280 ℃, and hardness is 18～35HB, and density is 7.4～8.5Kg/dm
3
5. the preparation method of a kind of hollow integral type plastic faucet water channel parts as claimed in claim 2; It is characterized in that in step 2) in, the material of said plastics is a kind of in refractory polyethylene, PPO, polyoxymethylene, polyphenylene sulfide, the polyphtalamide.
6. the preparation method of a kind of hollow integral type plastic faucet water channel parts as claimed in claim 2; It is characterized in that in step 4); Said meltable core adopts the metal pattern casting, and the meltable core fusing of the work on injection machine is after runner flows directly into closed casting in the mould; Said runner adopts copper or aluminum pipe and adds thermal insulation layer at pipe.
7. the preparation method of a kind of hollow integral type plastic faucet water channel parts as claimed in claim 2 is characterized in that in step 4) said casting is provided with heating, cooling system and shake unit to the housing of mould.
8. the preparation method of a kind of hollow integral type plastic faucet water channel parts as claimed in claim 2 is characterized in that in step 4), and said casting is to the internal surface polishing or the chromium plating of mould.
9. the preparation method of a kind of hollow integral type plastic faucet water channel parts as claimed in claim 2 is characterized in that in step 6), and the method for said cleaning product adopts high pressure water gun flushing or ultrasonic cleaning.
10. the preparation method of a kind of hollow integral type plastic faucet water channel parts as claimed in claim 2 is characterized in that in step 7), saidly is welded as a kind of in ultrasonic welding, spin welding, the sweat soldering.
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| CN201110448412.8A CN102518854B (en) | 2011-12-28 | 2011-12-28 | Hollow integrated type plastic faucet water-channel part and preparation method thereof |
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| CN201110448412.8A CN102518854B (en) | 2011-12-28 | 2011-12-28 | Hollow integrated type plastic faucet water-channel part and preparation method thereof |
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| CN102518854B CN102518854B (en) | 2015-03-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144254A (en) * | 2013-03-06 | 2013-06-12 | 路达(厦门)工业有限公司 | Mixed water discharge faucet forming mold and mixed water discharg faucet forming technology |
| CN107314143A (en) * | 2016-04-26 | 2017-11-03 | 科勒公司 | Claim compound faucet body and internal water channel |
| CN110260014A (en) * | 2019-06-20 | 2019-09-20 | 蔡永章 | A kind of unleaded faucet inner core and preparation method thereof |
| TWI764308B (en) * | 2020-10-05 | 2022-05-11 | 成霖企業股份有限公司 | Manufacturing method of plastic faucet body integrally formed by one-shot injection, multi-section mold core and finished product |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318133A (en) * | 2015-12-04 | 2016-02-10 | 厦门建霖工业有限公司 | Connecting structure for plastic channel main body of temperature-control water faucet and connecting process for connecting structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144254A (en) * | 2013-03-06 | 2013-06-12 | 路达(厦门)工业有限公司 | Mixed water discharge faucet forming mold and mixed water discharg faucet forming technology |
| CN107314143A (en) * | 2016-04-26 | 2017-11-03 | 科勒公司 | Claim compound faucet body and internal water channel |
| US10711442B2 (en) | 2016-04-26 | 2020-07-14 | Kohler Co. | Composite faucet body and internal waterway |
| US11408158B2 (en) | 2016-04-26 | 2022-08-09 | Kohler Co. | Composite faucet body and internal waterway |
| CN110260014A (en) * | 2019-06-20 | 2019-09-20 | 蔡永章 | A kind of unleaded faucet inner core and preparation method thereof |
| CN110260014B (en) * | 2019-06-20 | 2024-04-16 | 蔡永章 | Lead-free faucet inner core and manufacturing method thereof |
| TWI764308B (en) * | 2020-10-05 | 2022-05-11 | 成霖企業股份有限公司 | Manufacturing method of plastic faucet body integrally formed by one-shot injection, multi-section mold core and finished product |
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Address after: Tianfeng road in Jimei District of Xiamen City, Fujian Province, No. 69 361000 Patentee after: Xiamen Jian Lin health home Limited by Share Ltd Address before: 361000, room 12, building 1208, lotus tower, 859 Lotus Road, Fujian, Xiamen Patentee before: Xiamen Runner Industrial Corporation |