CN103182500A - Lampshade cover pressure-casting mould - Google Patents

Lampshade cover pressure-casting mould Download PDF

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Publication number
CN103182500A
CN103182500A CN2013101203013A CN201310120301A CN103182500A CN 103182500 A CN103182500 A CN 103182500A CN 2013101203013 A CN2013101203013 A CN 2013101203013A CN 201310120301 A CN201310120301 A CN 201310120301A CN 103182500 A CN103182500 A CN 103182500A
Authority
CN
China
Prior art keywords
mould
dynamic model
push rod
gate
lamp cover
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.)
Pending
Application number
CN2013101203013A
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Chinese (zh)
Inventor
殷来大
万鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DANYANG RONGJIA PRECISION MACHINERY Co Ltd
Original Assignee
DANYANG RONGJIA PRECISION MACHINERY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DANYANG RONGJIA PRECISION MACHINERY Co Ltd filed Critical DANYANG RONGJIA PRECISION MACHINERY Co Ltd
Priority to CN2013101203013A priority Critical patent/CN103182500A/en
Publication of CN103182500A publication Critical patent/CN103182500A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a lampshade cover pressure-casting mould. The lampshade cover pressure-casting mould comprises a movable mould, a fixed mould and a pushing rod, wherein a forming cavity is formed between the movable mould and the fixed mould; the mould cavity of the mould is a vertical sub mould; the pushing rod transversely passes through the movable mould; an inwards sunken transverse pouring gate, a sub runner, an in-gate and an overflow slot are formed on the movable mould; the mould cavity is used for exhausting gas by virtue of a gap between the parting surfaces of the movable mould and the fixed mould as well as a gap between the pushing rod and the movable mould; a pouring system of the mould comprises the transverse pouring gate, the sub runner and the in-gate; and an overflow system of the mould comprises an overflow slot. Compared with the prior art, the produced lampshade cover has the characteristics of being light in surface quality, small in wall thickness, less in internal defects, small in deformation, high in strength and the like, so that the use of a fixture during a mechanical machining process is reduced.

Description

The lamp cover die casting
Technical field
This invention relates to a kind of die cast metal mould, particularly a kind of die casting for casting street lamp lamp cover.
Background technology
Lamp cover is the supporting vitals of street lamp shell body.Owing to be the outward appearance part, the surface quality of lamp cover is had relatively high expectations.Generally be that material is made lamp cover by die casting now with the aluminium alloy, in use owing to will often leak cruelly externally in the environment, in order to reach durable and cost-effective purpose, therefore require lamp cover guaranteeing to have higher densification and the condition lower wall thickness of intensity is as much as possible little preferably.Be easy to produce defectives such as shrinkage cavity, cold shut, misrun in the less castings production process of wall thickness.This directly affects the development of performance and the sector of lamp cover.
The lamp cover wall thickness that at present domestic producer adopts die casting to produce is bigger, this has just increased the quality of lamp cover, not only increased production cost, and wasted aluminum alloy materials, in addition, surface quality is poor when producing the less lamp cover of wall thickness, internal flaw is many, the product distortion seriously, qualification rate is lower.
Summary of the invention
Goal of the invention: the purpose of this invention is to provide a kind of lamp cover die casting, reduce cost and situation that production efficiency is high under produce the less lamp cover of wall thickness, to satisfy the designing requirement of novel lamp cover cap, the lamp cover surface quality of producing is good, the appearance zero defect, wall thickness adheres to specification, and with the assembling of lampshade body, has realized purpose of design fully after processing.
Technical scheme: a kind of lamp cover die casting, comprise dynamic model, cover half and push rod, form die cavity between described dynamic model and the cover half, mold cavity adopts vertical parting, push rod crosses dynamic model, and dynamic model is provided with cross gate, runner, Inner cast gate and the overflow launder of indent; Die cavity carries out exhaust by the gap of the die joint of dynamic model and cover half and the gap between push rod and the dynamic model; The running gate system of mould comprises cross gate, runner and Inner cast gate, and the row of the mould system of overflowing comprises overflow launder.The design of the running gate system of mould and overflow system is most important to the casting quality quality among the present invention.The running gate system of mould is located on the dynamic model, and eight runners are arranged, and aluminium liquid is through the mold cavity that enters of ingate uniform and stable during die casting.This mold cavity is inner by the gap between the fixed half and moving half and the gap exhaust between push rod and the dynamic model, original air just can be discharged after being pressed into motlten metal easily in the die cavity, this has just reduced the molten metal flow resistance, increased molten metal flow, thereby make motlten metal can arrive each position of die cavity smoothly, the product of die cast is not easy to occur defective and distortion thus, has improved the quality of product.
Two runners in the cross gate outside are respectively outwardly from the horizontal by the 125o angle.This place can not produce eddy current bag gas and oxide inclusion defective, and the molten metal through each runner inflow die cavity is full of die cavity substantially simultaneously, therefore can guarantee the quality consistency of every die casting, has overflow launder on the dynamic model.
Described cover half is provided with the auxiliary stripping chute of at least two indents, and described auxiliary stripping chute is outwards dispersed around die cavity.Adopting this mode is to prevent inferring the push rod release location of setting up when throw-out lever is released foundry goods on the one hand, can make the smooth demoulding of foundry goods on the other hand.
Described push rod comprises that there is the circular cone push rod of 45 ° circular cone the end.The circular cone push rod both played a role in promoting, and the use of frock has been reduced in the location when playing to the foundry goods drilling and tapping again.
Beneficial effect: the present invention compared with prior art, the lamp cover of production has that surface quality is light, wall thickness, internal flaw is few, distortion is little and characteristics such as intensity height, the use of frock when having reduced machined.
Description of drawings
Fig. 1 cutaway view during for matched moulds of the present invention;
Fig. 2 is the structural representation of dynamic model of the present invention;
Fig. 3 is the structural representation of cover half of the present invention;
Fig. 4 is the structural representation of circular cone push rod of the present invention;
Fig. 5 is cast the lamp cover structural representation by the present invention.
Among the figure: 1 dynamic model, 2 cover half, 3 push rods, 4 die cavities, 5 cross gates, 6 runners, 7 Inner cast gates, 8 overflow launders, 9 auxiliary stripping chute, 10 circular cone push rods.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
As illustrated in fig. 1 and 2, a kind of lamp cover die casting comprises dynamic model 1, cover half 2 and push rod 3, form die cavity 4 between described dynamic model 1 and the cover half 2, mold cavity adopts vertical parting, and push rod 3 crosses dynamic model 1, and dynamic model 1 is provided with cross gate 5, runner 6, Inner cast gate 7 and the overflow launder 8 of indent; Die cavity 4 carries out exhaust by the gap of the die joint of dynamic model 1 and cover half 2 and the gap between push rod 3 and the dynamic model 1; The running gate system of mould comprises cross gate 5, runner 6 and Inner cast gate 7, and the row of the mould system of overflowing comprises overflow launder 8.The design of the running gate system of mould and overflow system is most important to the casting quality quality among the present invention.The running gate system of mould is located on the dynamic model 1, and eight runners 6 are arranged, and aluminium liquid is through the mold cavity that enters of ingate uniform and stable during die casting.This mold cavity is inner by the gap between cover half 1 and the dynamic model 2 and the gap exhaust between push rod 3 and the dynamic model 1, original air just can be discharged after being pressed into motlten metal easily in the die cavity 4, this has just reduced the molten metal flow resistance, increased molten metal flow, thereby make motlten metal can arrive each position of die cavity smoothly, the product of die cast is not easy to occur defective and distortion thus, has improved the quality of product.
Two runners in cross gate 5 outsides 6 are respectively outwardly from the horizontal by the 125o angle.This place can not produce eddy current bag gas and oxide inclusion defective, and the molten metal through each runner 6 inflow die cavities is full of die cavity substantially simultaneously, therefore can guarantee the quality consistency of every die casting, has overflow launder on the dynamic model.
As shown in Figure 3, described cover half 2 is provided with the auxiliary stripping chute 9 of ten indents, and described auxiliary stripping chute 9 is outwards dispersed around die cavity 4.Adopting this mode is to prevent inferring the push rod release location of setting up when throw-out lever 3 is released foundry goods on the one hand, can make the smooth demoulding of foundry goods on the other hand.
As shown in Figure 4, described push rod 3 comprises that there is the circular cone push rod 10 of 45 ° circular cone the end.Circular cone push rod 10 had both played a role in promoting, and the use of frock has been reduced in the location when playing to the foundry goods drilling and tapping again.
Be illustrated in figure 5 as the present invention and cast the lamp cover structural representation.
Working process of mould: during the mould matched moulds, under the guiding and positioning action of guide pillars and bushes, the matched moulds system drives dynamic model 1 and moves to cover half 2 directions, arrives the operating position, makes the mould closure, and provides enough clamp force locking moulds by the matched moulds system.Begin die casting then, by the die casting machine manipulator aluminium liquid is poured into pressing exerts pressure in the chamber and through injection mechanism enters mold cavity through cross gate 5, ingate 7 respectively, after pressurize a period of time, the matched moulds system drives dynamic model 1 to moving away from cover half 2 directions, and push rod 3 is released foundry goods from mould then.During matched moulds, push rod 3 resets, and mould is prepared die casting next time.

Claims (4)

1. lamp cover die casting, comprise dynamic model (1), cover half (2) and push rod (3), form die cavity (4) between described dynamic model (1) and the cover half (2), mold cavity adopts vertical parting, push rod (3) crosses dynamic model (1), it is characterized in that: dynamic model (1) is provided with cross gate (5), runner (6), Inner cast gate (7) and the overflow launder (8) of indent; Die cavity (4) carries out exhaust by the gap of the die joint of dynamic model (1) and cover half (2) and the gap between push rod (3) and the dynamic model (1); The running gate system of mould comprises cross gate (5), runner (6) and Inner cast gate (7), and the row of the mould system of overflowing comprises overflow launder (8).
2. lamp cover die casting according to claim 1 is characterized in that: cross gate (5) two runners in the outside (6) are respectively outwardly from the horizontal by 125 degree angles.
3. lamp cover die casting according to claim 1, it is characterized in that: described cover half (2) is provided with the auxiliary stripping chute (9) of at least two indents, and described auxiliary stripping chute (9) is outwards dispersed all around along die cavity (4).
4. lamp cover die casting according to claim 1, it is characterized in that: described push rod (3) comprises that there is the circular cone push rod (10) of 45 ° circular cone the end.
CN2013101203013A 2013-04-09 2013-04-09 Lampshade cover pressure-casting mould Pending CN103182500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013101203013A CN103182500A (en) 2013-04-09 2013-04-09 Lampshade cover pressure-casting mould

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013101203013A CN103182500A (en) 2013-04-09 2013-04-09 Lampshade cover pressure-casting mould

Publications (1)

Publication Number Publication Date
CN103182500A true CN103182500A (en) 2013-07-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013101203013A Pending CN103182500A (en) 2013-04-09 2013-04-09 Lampshade cover pressure-casting mould

Country Status (1)

Country Link
CN (1) CN103182500A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103419306A (en) * 2013-09-06 2013-12-04 西安西光模具制造有限公司 Pouring mould
CN104014761A (en) * 2014-06-23 2014-09-03 镇江市申茂机械有限公司 Die-casting die of lamp shade panel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009220139A (en) * 2008-03-14 2009-10-01 Honda Motor Co Ltd Casting mold
WO2012124476A1 (en) * 2011-03-11 2012-09-20 Sintokogio, Ltd. Die-casting die
CN203156010U (en) * 2013-04-09 2013-08-28 丹阳荣嘉精密机械有限公司 Lamp cover die-casting mould

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009220139A (en) * 2008-03-14 2009-10-01 Honda Motor Co Ltd Casting mold
WO2012124476A1 (en) * 2011-03-11 2012-09-20 Sintokogio, Ltd. Die-casting die
CN203156010U (en) * 2013-04-09 2013-08-28 丹阳荣嘉精密机械有限公司 Lamp cover die-casting mould

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
张荫朗: "压铸模技术(六)", 《模具工业》 *
李芳芳等: "基于Pro/Moldesign和EMX的缸盖罩压铸模具设计", 《现代铸铁》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103419306A (en) * 2013-09-06 2013-12-04 西安西光模具制造有限公司 Pouring mould
CN104014761A (en) * 2014-06-23 2014-09-03 镇江市申茂机械有限公司 Die-casting die of lamp shade panel

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Application publication date: 20130703