CN109304837A - Electronic water pump moulds two template dies of magnetic impeller center single-point injection molding production technology and production - Google Patents

Electronic water pump moulds two template dies of magnetic impeller center single-point injection molding production technology and production Download PDF

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Publication number
CN109304837A
CN109304837A CN201811456927.0A CN201811456927A CN109304837A CN 109304837 A CN109304837 A CN 109304837A CN 201811456927 A CN201811456927 A CN 201811456927A CN 109304837 A CN109304837 A CN 109304837A
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China
Prior art keywords
water pump
injection molding
cavity
die
upper mold
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CN201811456927.0A
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Chinese (zh)
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CN109304837B (en
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王鑫伟
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0025Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/2602Mould construction elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/27Sprue channels ; Runner channels or runner nozzles
    • B29C45/2701Details not specific to hot or cold runner channels
    • B29C45/2708Gates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/08Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention discloses electronic water pump modeling magnetic impeller center single-point injection molding production technology and two template dies of production, two template dies include upper die and lower die, bottom is equipped with water pump vane top vane wheel hub die cavity in upper mold, the impeller cylinder mould chamber of water pump vane lower part is equipped in lower die, die cavity forms water pump vane shape shape chamber inside upper mold and lower die splice grafting, vertical injection molding cavity is equipped in the upper mold, injection molding cavity bottom is located at wheel hub cavity center.Two template dies are assembled, injection fluid moulds magnetic from injection molding cavity top, and fluid moulds magnetic and fills die cavity by 360 ° of fillings downwards of surrounding from the top center of water pump vane shape shape chamber, upper mold lower die is separated after solidification, injection molding product are taken out, fractures and removes the useless stick of center injection molding cavity to get water pump vane.The present invention not only improves properties of product, but also reduces production cost.

Description

Electronic water pump moulds two template dies of magnetic impeller center single-point injection molding production technology and production
Technical field
The present invention relates to electronic water pump for automobile production technical fields, and in particular to for producing electronic water pump modeling magnetic impeller Two template dies and the center single-point Shooting Technique that electronic water pump modeling magnetic impeller is realized using two template dies.
Background technique
Electronic water pump for automobile impeller is integrally formed by modeling magnetic material injection, is clicked through glue using three template dies two at present and is molded work Skill, as shown in Fig. 2, three template dies include upper mold, middle mould and lower die, middle mould bottom is equipped with water pump vane top vane wheel hub die cavity, Lower die is equipped with the impeller tubular die cavity of water pump vane lower part, and die cavity forms water pump vane shape shape chamber inside middle mould and lower die splice grafting, Injection molding cavity under " n " type is equipped in middle mould, the bottom of the two vertical footing injection molding cavities in left and right is located at wheel hub cavity or so edge, on Vertical taper injection molding cavity is equipped in mould.When production, flow-like modeling magnetic material enters from upper injection molding cavity top, is then tapped off to water The left and right sides of impeller of pump shape shape chamber, which is filled downwards, fills die cavity, therefore two click through glue injection molding liquid modeling magnetic in impeller cylinder mould chamber In converge from two sides, just will form weld mark after solidification, weld mark can generate certain negatively influencing to the performance of product.When demoulding Since injection molding cavity is fork type, it is necessary to which mould and lower die, injection molding cavity material mouth and water pump vane injection molding product are necessary in first separating First break, thus the tie point section of the two cannot be too big, therefore being molded injection pressure must be sufficiently large, product appearance could nothing Defect, not only injection efficiency is low, but also is also uncontrollable to product quality.It separates upper mold and middle mould takes out in injection molding cavity and gives up Material, waste material generally weigh 19g or so, consider that waste material melt back recycling is affected to properties of product, largely make waste treatment, And magnetic raw material about 130,000/ton is moulded, value is more expensive, and waste material also becomes important a part of finished product cost of material in injection molding cavity.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of center single-point injecting glues of electronic water pump modeling magnetic impeller to produce work Skill, using two template dies, from water pump vane die cavity top center point single-point into glue, fluid modeling magnetic material is from top along cavity by surrounding 360 ° are filled downwards, and the electronic water pump impeller of injection molding does not have weld mark, and product magnetic property gets a promotion.Four points are reduced simultaneously One of more than injection molding waste generate, save expensive raw material, reduce production cost.
The present invention is provided to produce two template dies of electronic water pump modeling magnetic impeller, it is achieved through the following technical solutions:
For producing two template dies of electronic water pump modeling magnetic impeller, including upper die and lower die, bottom is equipped with water pump vane top in upper mold Portion's blade wheel hub die cavity, the impeller cylinder mould chamber of water pump vane lower part is equipped in lower die, and upper mold and lower die splice grafting inside die cavity are formed Water pump vane shape shape chamber is equipped with vertical injection molding cavity in the upper mold, and injection molding cavity bottom is located at wheel hub cavity center.
The further improvement scheme of the present invention is that injection molding cavity is conical desk shape, and diameter is gradually increased from top to bottom.Because upper Water pump vane can integrally take out with useless stick when lower die is opened, then fracture that remove useless stick more easy to operate, unlike when two, which click through glue, is opened Two pulling hooks are needed, when product is stained with mould, need to shut down and remove stagnant mould cast gate, implementation of the invention improves properties of product, Raising produces efficiency.
The further improvement scheme of the present invention is that the blade wheel hub die cavity is circumferentially-spaced using vertebra platform shape as center chamber It encloses and sets blade cavity, the impeller cylinder mould chamber is cylindric die cavity.
The present invention provides the skills for the center single-point injection molding production technology that electronic water pump modeling magnetic impeller is realized using two template dies Art scheme:
The center single-point that electronic water pump moulds magnetic impeller is molded production technology, assembles any one of claims 1 to 3 two plate Mould, from injection molding cavity top, injection fluid moulds magnetic, and it is downward by 360 ° of surrounding from the top center of water pump vane shape shape chamber that fluid moulds magnetic Filling fills die cavity, and upper mold lower die is separated after solidification, takes out injection molding product, fractures and removes the useless stick of center injection molding cavity to get water Pump modeling magnetic impeller.
Compared with prior art, the present invention having following obvious advantage:
One, the present invention is realized for producing electronic water pump impeller from its top impeller central point single-point into glue, moulds magnetic material from top Portion is along cavity by 360 ° of fillings downwards of surrounding, and the electronic water pump modeling magnetic impeller of injection molding does not have weld mark, and product magnetic property obtains To promotion.
Two, waste material is only a truncated cone shape bar in present invention note cavity mold, is the part in former three template die upper molds, and weight is former Carry out waste material one third less than only 5-6g, by modeling about 0.13 yuan/g of magnetic material price at present, one electronic water pump leaf of every production Wheel can save nearly 1.60 yuan, and material cost is greatly saved.
Detailed description of the invention
Fig. 1 is two template die cross-sectional views of the invention;
Fig. 2 is former three template die cross-sectional views;
Fig. 3, Fig. 4, Fig. 5 are center single-point injecting glue product Distribution of Magnetic Field test chart of the present invention;
Fig. 6, Fig. 7, Fig. 8 are traditional two sides two o'clock injecting glue product Distribution of Magnetic Field test chart.
Specific embodiment
As shown in Figure 1, two template die of the present invention includes upper mold 1 and lower die 2, bottom is equipped with water pump vane top in upper mold 1 Portion's blade wheel hub die cavity 11, it is that chamber circumferentially-spaced enclose in center sets leaf that the blade wheel hub die cavity 11, which is with vertebra platform shape wheel hub cavity 111, Piece chamber 112 is equipped with the impeller cylinder mould chamber 21 of water pump vane lower part in lower die 2, and the impeller cylinder mould chamber 21 is cylindric die cavity, on Die cavity forms water pump vane shape shape chamber inside mould 1 and 2 splice grafting of lower die, is equipped with vertical injection molding cavity 12, injection molding cavity in the upper mold 1 12 be conical desk shape, and diameter is gradually increased from top to bottom, and 12 bottom of injection molding cavity is located at wheel hub cavity center.
The center single-point that electronic water pump moulds magnetic impeller is molded production technology, above-mentioned two template die is assembled, from injection molding cavity top It injecting fluid and moulds magnetic, fluid moulds magnetic and fills die cavity by 360 ° of fillings downwards of surrounding from the top center of water pump vane shape shape chamber, Gu Upper mold lower die is separated after change, takes out injection molding product, is fractureed and is removed the useless stick of center injection molding cavity to get water pump modeling magnetic impeller.
The electronic water pump impeller of center single-point injecting glue production of the present invention, converges compared to traditional two sides two o'clock or multiple spot into glue It is molded the electronic water pump impeller of production, product magnetic property is substantially improved.Inventor is using gaussmeter to product of the present invention and tradition Product has carried out magnetic property detection, and Fig. 3, Fig. 4, Fig. 5 are product of the present invention Distribution of Magnetic Field test charts, and Fig. 6, Fig. 7, Fig. 8 are tradition Product Distribution of Magnetic Field test chart.The superiority and inferiority of electronic water pump impeller magnetic property, main 3 points comprehensive from figure: (1) N, S are extremely magnetic The size of peak value, peak value maximum are optimal;(2) the rounder and more smooth magnetism of each pole segment magnetic values curve is better;(3) each pole segment magnetic Property value curve, which encloses, to be set area the higher the better with respect to rectangular area accounting.From attached drawing as can be seen that product of the present invention magnetic property is obvious It is superior to traditional product.

Claims (4)

1. two template dies for producing electronic water pump modeling magnetic impeller, it is characterised in that: including upper mold (1) and lower die (2), upper mold (1) bottom is equipped with water pump vane top vane wheel hub die cavity (11) in, and the impeller cylinder mould of water pump vane lower part is equipped in lower die (2) Die cavity forms water pump vane shape shape chamber inside chamber (21), upper mold (1) and lower die (2) splice grafting, is equipped with vertically in the upper mold (1) Injection molding cavity (12), injection molding cavity (12) bottom are located at wheel hub cavity center.
2. according to claim 1 for producing two template dies of electronic water pump modeling magnetic impeller, it is characterised in that: the injection molding Chamber (12) is conical desk shape, and diameter is gradually increased from top to bottom.
3. according to claim 1 for producing two template dies of electronic water pump modeling magnetic impeller, it is characterised in that: the blade It is that chamber circumferentially-spaced enclose in center sets blade cavity (112) that wheel hub die cavity (11), which is with vertebra platform shape wheel hub cavity (111), the impeller cylinder mould Chamber is cylindric die cavity.
4. the center single-point that electronic water pump moulds magnetic impeller is molded production technology, it is characterised in that: assemble claims 1 to 3 and appoint One two template die, from injection molding cavity top, injection fluid moulds magnetic, fluid mould magnetic from the top center of water pump vane shape shape chamber by 360 ° of surrounding fill die cavity to retrofilling, and upper mold lower die is separated after solidification, take out injection molding product, fracture and remove center injection molding cavity Useless stick moulds magnetic impeller to get water pump.
CN201811456927.0A 2018-11-30 2018-11-30 Single-point injection molding production process for center of plastic magnetic impeller of electronic water pump and two-plate mold for production Active CN109304837B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811456927.0A CN109304837B (en) 2018-11-30 2018-11-30 Single-point injection molding production process for center of plastic magnetic impeller of electronic water pump and two-plate mold for production

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Application Number Priority Date Filing Date Title
CN201811456927.0A CN109304837B (en) 2018-11-30 2018-11-30 Single-point injection molding production process for center of plastic magnetic impeller of electronic water pump and two-plate mold for production

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CN109304837A true CN109304837A (en) 2019-02-05
CN109304837B CN109304837B (en) 2024-02-27

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090041283A (en) * 2007-10-23 2009-04-28 박화석 Injection mold with conformal cooling channel for manufacturing plastic fans
CN103302814A (en) * 2013-06-28 2013-09-18 慈溪市三佩机械有限公司 Cylindrical head worm mould
CN106863712A (en) * 2017-02-22 2017-06-20 台州贝力得模塑有限公司 Injection mold for producing impeller
CN206551416U (en) * 2017-02-22 2017-10-13 台州贝力得模塑有限公司 The injection mold of water pump vane
CN206653593U (en) * 2017-04-05 2017-11-21 思博模具(宁波)有限公司 A kind of impeller forming die
CN209063401U (en) * 2018-11-30 2019-07-05 王鑫伟 For producing two template dies of electronic water pump modeling magnetic impeller

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090041283A (en) * 2007-10-23 2009-04-28 박화석 Injection mold with conformal cooling channel for manufacturing plastic fans
CN103302814A (en) * 2013-06-28 2013-09-18 慈溪市三佩机械有限公司 Cylindrical head worm mould
CN106863712A (en) * 2017-02-22 2017-06-20 台州贝力得模塑有限公司 Injection mold for producing impeller
CN206551416U (en) * 2017-02-22 2017-10-13 台州贝力得模塑有限公司 The injection mold of water pump vane
CN206653593U (en) * 2017-04-05 2017-11-21 思博模具(宁波)有限公司 A kind of impeller forming die
CN209063401U (en) * 2018-11-30 2019-07-05 王鑫伟 For producing two template dies of electronic water pump modeling magnetic impeller

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