CN104015298A - Fixed plate of spheroidal graphite cast iron injection molding machine and casting method for fixed plate - Google Patents
Fixed plate of spheroidal graphite cast iron injection molding machine and casting method for fixed plate Download PDFInfo
- Publication number
- CN104015298A CN104015298A CN201410265747.XA CN201410265747A CN104015298A CN 104015298 A CN104015298 A CN 104015298A CN 201410265747 A CN201410265747 A CN 201410265747A CN 104015298 A CN104015298 A CN 104015298A
- Authority
- CN
- China
- Prior art keywords
- fixed head
- iron
- fixed plate
- boss
- spheroidal graphite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B29C45/64—Mould opening, closing or clamping devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D3/00—Pig or like casting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
- C22C33/10—Making cast-iron alloys including procedures for adding magnesium
- C22C33/12—Making cast-iron alloys including procedures for adding magnesium by fluidised injection
Abstract
The invention relates to a fixed plate of a spheroidal graphite cast iron injection molding machine and a casting method for the fixed plate. The fixed plate comprises a fixed plate body, pull rod hole seats symmetrically distributed at four corners of the fixed plate body, standing legs which are arranged at the bottom of the fixed plate body and are fixed with the pull rod hole seats, and a boss fixed at the center of the fixed plate body, wherein pull rod holes are formed in the pull rod hole seats; a shaft hole penetrating through the fixed plate body and the boss is formed in the center of the boss; a plurality of hollow slots are formed in the side surface, which is provided with the boss, of the fixed plate body. According to the fixed plate of the spheroidal graphite cast iron injection molding machine, the shaft hole penetrating through the fixed plate body and the boss is formed in the center of the boss, so that a mobile plate and a tail plate are precisely fixed; and therefore, the processing precision of the injection molding machine is improved; furthermore, the multiple hollow slots are formed in the side surface, which is provided with the boss, of the fixed plate body, so that materials are saved, and the cost is lowered.
Description
Technical field
The invention belongs to machine casting field, relate to a kind of injection machine fixed head, be specifically related to a kind of spheroidal graphite cast-iron injection machine fixed head and casting method thereof.
Background technology
Spheroidal graphite cast-iron is to obtain globular graphite by nodularization and inoculation, and it can improve the mechanical performance of cast iron effectively, plasticity and the toughness of machinery especially, thus obtain than also high intensity of carbon steel.Spheroidal graphite cast-iron be 20th century a kind of combination property of growing up of the fifties close to the high-strength cast iron material of steel, just based on its excellent performance, be successfully used to cast some stressed complexity, the part that intensity, toughness, wearability are had relatively high expectations.Spheroidal graphite cast-iron has developed rapidly as being only second to casting pig, and application cast iron materials very widely.
In the three-plate type clamping of injection machine, include three templates of fixing and open-close module, i.e. fixed head (plate), movable plate (two plates), capable of regulating plate (tailgate).Wherein fixed head is the important composition parts of injection machine, is divided into front and back, and its front generally adopts reinforcing plate type shock resistance structure, and the back side is for fixed mould.But in prior art, injection machine fixed head is general adopts solidly, therefore causes that fixed head weight is large, consumptive material is many, cost is high; And it is concentrated easily to produce stress, when casting, easily produce various defects, affect service life, and be all connected with rib between the boss of four jiaos and between the boss of four jiaos and middle boss, this structure had both been wasted material, process more difficult again, inner casting quality be difficult to ensure; Easily make fixed form flexural deformation through long perseveration, even cause pull bar fracture.
Summary of the invention
The present invention seeks to provide in order to overcome the deficiencies in the prior art a kind of casts and saves material, is easy to the injection machine fixed head of processing with spheroidal graphite cast-iron.
For achieving the above object, the technical solution adopted in the present invention is: a kind of spheroidal graphite cast-iron injection machine fixed head, comprise fixed head body, be symmetrically distributed in four jiaos of places of fixed head body tie rod hole seat, be arranged at fixed head body bottom and the station pin fixing with described tie rod hole seat, the boss of being located at fixed head body center, on described tie rod hole seat, there is tie rod hole, described boss central authorities have the axis hole that runs through fixed head body and boss, on the side of described fixed head body installation base, are distributed with multiple grooves.
Optimally, the adjacent machine insurance bar installing hole that is provided with of described tie rod hole seat.
Optimally, the bilateral symmetry of described boss is fixed with reinforcement.
Optimally, on the another side of described fixed head body, be distributed with multiple apertures.
Optimally, described groove is eight, is symmetrically distributed in the lateral edge of installation base.
The casting method that the invention provides a kind of spheroidal graphite cast-iron injection machine fixed head, comprises the following steps:
(a) make the fixed head mould after high-volume by normal mechanical allowance, and at fixed head mould top and thermal center place, feeding head is set, at working face and thermal center place, chill is set;
(b) cast iron raw material is added in smelting furnace, be heated to 1450 ~ 1600 DEG C and form iron liquid;
(c) iron liquid in step (b) is cooled to 1420 ~ 1440 DEG C, add and account for the nodulizer that iron liquid quality is 1 ~ 2% and carry out spheroidizing reacion 2 ~ 5 minutes, add subsequently that to account for iron liquid quality be that 0.1 ~ 0.2% inovulant carries out current-following inoculation, and control final iron liquid composition percentage by weight and be: carbon 3 ~ 3.3wt%, silicon 1.5 ~ 2 wt%, manganese≤0.3wt%, phosphorus≤0.2wt%, sulphur≤0.02wt%, magnesium 0.05 ~ 0.08 wt%, surplus is iron;
(d) final iron liquid in step (c) is built to cooling in fixed head mould.
Because technique scheme is used, the present invention compared with prior art has following advantages: spheroidal graphite cast-iron injection machine fixed head of the present invention, on the one hand by arranging and there is the axis hole that runs through fixed head body and boss in boss central authorities, thereby movable plate and tailgate accurately can be fixed, thereby be improved injection machine machining accuracy; On the side of fixed head body installation base, be distributed with multiple grooves on the other hand, can save material, reduce costs.
Brief description of the drawings
The front view that accompanying drawing 1 is spheroidal graphite cast-iron injection machine fixed head of the present invention;
The right view that accompanying drawing 2 is spheroidal graphite cast-iron injection machine fixed head of the present invention;
The rearview that accompanying drawing 3 is spheroidal graphite cast-iron injection machine fixed head of the present invention;
Wherein, 1, fixed head body; 2, the pin of standing; 3, tie rod hole seat; 4, tie rod hole; 5, machine insurance bar installing hole; 6, boss; 7, groove; 8, reinforcement; 9, aperture; 10, axis hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiment of the invention is elaborated:
Embodiment 1
This example provides a kind of spheroidal graphite cast-iron injection machine fixed head, as depicted in figs. 1 and 2, mainly comprises fixed head body 1, tie rod hole seat 3, boss 6 and groove 7.
Wherein, fixed head body 1 has a side face, is parallel to each other and crossing with side face both ends of the surface (or side); Tie rod hole seat 3 is symmetrically distributed in the Si Jiaochu of fixed head body 1, has tie rod hole 4 on it, for pull bar is installed; The pin 2 of standing is arranged on the side face of fixed head body 1 (or fixed head body 1 bottom), and fixes with tie rod hole seat 3, to improve the intensity of station pin 2; Boss 6 is arranged on fixed head body 1 end face central authorities, and its central authorities has the axis hole 10 that runs through fixed head body 1 and boss 6, can be arranged in this axis hole 10 with an axostylus axostyle, for by accurately fixing to movable plate and tailgate, thereby improves injection machine machining accuracy; This end face is also distributed with multiple grooves 7, for alleviating the weight of fixed head, saves material, reduces costs.
In the present embodiment, the adjacent machine insurance bar installing hole 5 that is provided with of tie rod hole seat 3, for installation insurance bar.The bilateral symmetry of boss 6 is fixed with reinforcement 8, for reinforcing the intensity of boss 6.On the other end of fixed head body 1, be distributed with multiple apertures 9.Groove 7 is eight, is symmetrically distributed in the lateral edge of installation base 6.
Embodiment 2
This example provides a kind of casting method of spheroidal graphite cast-iron injection machine fixed head, comprises the following steps:
(a) make the fixed head mould after high-volume by normal mechanical allowance, and at fixed head mould top and thermal center place, feeding head is set, at working face and thermal center place, chill is set, feeding head can be used for storing unnecessary iron liquid, thereby ensure the quality of cast iron, riser feeding amount is greater than 5%, and chill contributes to the cooling fast of iron liquid;
(b) raw material such as the pig iron and steel scrap is added in smelting furnace, be heated to 1450 ~ 1600 DEG C and form iron liquid;
(c) the iron liquid of formation is cooled to 1420 ~ 1440 DEG C, add and account for the nodulizer that iron liquid quality is 1 ~ 2% and carry out spheroidizing reacion 2 ~ 5 minutes, add subsequently that to account for iron liquid quality be that 0.1 ~ 0.2% inovulant carries out current-following inoculation, and control final iron liquid composition percentage by weight and be: carbon 3 ~ 3.3wt%, silicon 1.5 ~ 2 wt%, manganese≤0.3wt%, phosphorus≤0.2wt%, sulphur≤0.02wt%, magnesium 0.05 ~ 0.08 wt%, surplus is iron;
(d) final iron liquid in step (c) is built to cooling in fixed head mould.
In the present embodiment, fixed head mould molding sand used is resin sand.
Above-described embodiment is only explanation technical conceive of the present invention and feature; its object is to allow person skilled in the art can understand content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (6)
1. a spheroidal graphite cast-iron injection machine fixed head, comprise fixed head body (1), be symmetrically distributed in the tie rod hole seat (3) at (1) four jiao of place of fixed head body, the station pin (2) that is arranged at fixed head body (1) bottom and fixes with described tie rod hole seat (3), be located at the boss (6) of fixed head body (1) central authorities, on described tie rod hole seat (3), there is tie rod hole (4), it is characterized in that: described boss (6) central authorities have the axis hole (10) that runs through fixed head body (1) and boss (6), on the side of described fixed head body (1) installation base (6), be distributed with multiple grooves (7).
2. spheroidal graphite cast-iron injection machine fixed head according to claim 1, is characterized in that: the adjacent machine insurance bar installing hole (5) that is provided with of described tie rod hole seat (3).
3. spheroidal graphite cast-iron injection machine fixed head according to claim 1, is characterized in that: the bilateral symmetry of described boss (6) is fixed with reinforcement (8).
4. spheroidal graphite cast-iron injection machine fixed head according to claim 1, is characterized in that: on the another side of described fixed head body (1), be distributed with multiple apertures (9).
5. spheroidal graphite cast-iron injection machine fixed head according to claim 1, is characterized in that: described groove (7) is eight, is symmetrically distributed in the lateral edge of installation base (6).
6. a casting method for the injection machine of spheroidal graphite cast-iron described in claim 1 fixed head, is characterized in that, comprises the following steps:
(a) make the fixed head mould after high-volume by normal mechanical allowance, and at fixed head mould top and thermal center place, feeding head is set, at working face and thermal center place, chill is set;
(b) cast iron raw material is added in smelting furnace, be heated to 1450 ~ 1600 DEG C and form iron liquid;
(c) iron liquid in step (b) is cooled to 1420 ~ 1440 DEG C, add and account for the nodulizer that iron liquid quality is 1 ~ 2% and carry out spheroidizing reacion 2 ~ 5 minutes, add subsequently that to account for iron liquid quality be that 0.1 ~ 0.2% inovulant carries out current-following inoculation, and control final iron liquid composition percentage by weight and be: carbon 3 ~ 3.3wt%, silicon 1.5 ~ 2 wt%, manganese≤0.3wt%, phosphorus≤0.2wt%, sulphur≤0.02wt%, magnesium 0.05 ~ 0.08 wt%, surplus is iron;
(d) final iron liquid in step (c) is built to cooling in fixed head mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410265747.XA CN104015298A (en) | 2014-06-13 | 2014-06-13 | Fixed plate of spheroidal graphite cast iron injection molding machine and casting method for fixed plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410265747.XA CN104015298A (en) | 2014-06-13 | 2014-06-13 | Fixed plate of spheroidal graphite cast iron injection molding machine and casting method for fixed plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104015298A true CN104015298A (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410265747.XA Pending CN104015298A (en) | 2014-06-13 | 2014-06-13 | Fixed plate of spheroidal graphite cast iron injection molding machine and casting method for fixed plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104015298A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106363138A (en) * | 2016-09-29 | 2017-02-01 | 广东中天创展球铁有限公司 | Cooling component structure used for molding casting guide rod hole |
| CN109590693A (en) * | 2019-01-18 | 2019-04-09 | 徐州徐工矿业机械有限公司 | A kind of manufacturing method of excavator cast connecting rod |
| CN111570732A (en) * | 2020-05-29 | 2020-08-25 | 芜湖市容川机电科技股份有限公司 | Preparation method of nodular cast iron injection molding machine fixing plate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259159A (en) * | 2011-06-08 | 2011-11-30 | 苏州市海威特铸造厂 | Process for casting crank shaft |
| CN102994857A (en) * | 2012-09-29 | 2013-03-27 | 徐州支点机电设备有限公司 | Technology for producing ductile iron flange |
| CN103057038A (en) * | 2011-10-24 | 2013-04-24 | 南京协和助剂有限公司 | Head board of injection molding machine |
| CN103060671A (en) * | 2013-01-28 | 2013-04-24 | 江苏一汽铸造股份有限公司 | Ferritic nodular cast iron and preparation thereof |
-
2014
- 2014-06-13 CN CN201410265747.XA patent/CN104015298A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259159A (en) * | 2011-06-08 | 2011-11-30 | 苏州市海威特铸造厂 | Process for casting crank shaft |
| CN103057038A (en) * | 2011-10-24 | 2013-04-24 | 南京协和助剂有限公司 | Head board of injection molding machine |
| CN102994857A (en) * | 2012-09-29 | 2013-03-27 | 徐州支点机电设备有限公司 | Technology for producing ductile iron flange |
| CN103060671A (en) * | 2013-01-28 | 2013-04-24 | 江苏一汽铸造股份有限公司 | Ferritic nodular cast iron and preparation thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106363138A (en) * | 2016-09-29 | 2017-02-01 | 广东中天创展球铁有限公司 | Cooling component structure used for molding casting guide rod hole |
| CN106363138B (en) * | 2016-09-29 | 2018-01-26 | 广东中天创展球铁有限公司 | A kind of cooling-part structure for casting guide rod hole forming |
| CN109590693A (en) * | 2019-01-18 | 2019-04-09 | 徐州徐工矿业机械有限公司 | A kind of manufacturing method of excavator cast connecting rod |
| CN111570732A (en) * | 2020-05-29 | 2020-08-25 | 芜湖市容川机电科技股份有限公司 | Preparation method of nodular cast iron injection molding machine fixing plate |
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Application publication date: 20140903 |