CN105290331A - Casting mould structure capable of pulling core firstly and then ejecting - Google Patents
Casting mould structure capable of pulling core firstly and then ejecting Download PDFInfo
- Publication number
- CN105290331A CN105290331A CN201510825448.1A CN201510825448A CN105290331A CN 105290331 A CN105290331 A CN 105290331A CN 201510825448 A CN201510825448 A CN 201510825448A CN 105290331 A CN105290331 A CN 105290331A
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- top board
- mould
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- product
- cover half
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- 238000005266 casting Methods 0.000 title claims abstract description 17
- 238000005336 cracking Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 238000007493 shaping process Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a casting mould structure capable of pulling a core firstly and then ejecting. The casting mould structure comprises a rack as well as a movable mould, a fixed mould, a movable core rod, an ejector board and a hydraulic cylinder which are arranged on the rack, wherein the movable mould and the fixed mould are arranged up and down; the movable mould and the fixed mould are in mutual contact and form a mould cavity; when the mould works, molten metal is firstly poured into the mould cavity from a sprue of the movable mould, and then, the ejector board is pulled down by virtue of the hydraulic cylinder to drive the movable core rod to move downwards and separate from a through hole of a product, so that shrinkage stress is released; after a product is molded, the movable mould and the product are ejected sequentially through a top mould rod and an ejector rod; and the casting mould structure is suitable for mould opening of the product with the through hole, so that the product with the through hole is prevented from a cracking phenomenon during mould opening.
Description
Technical field
The present invention relates to casting mold technical field, be specifically related to a kind of for ejection mold structure after first the loosing core of casting die.
Background technology
The product that casting mold develops is when die sinking, if this product contains through hole, is generally that after first directly removing dynamic model, when then using ejector beam ejecting product, through hole departs from from plug, thus completes mold-break operations.But, product such as the quality that some quality is larger is the product of 500g, because this product quality is bigger than normal, its molding time is longer, product is when cooling, amount of contraction is larger, the through hole of product is owing to shrinking, through hole can hold plug tightly, knockout press between product and plug can increase, thus the frictional force increased between plug and product, the wearing and tearing of plug will be increased when the demoulding, reduce the life-span of plug, and the stress of interiors of products can be increased, affect performance and the life-span of product, severe patient, may cracking phenomena be there is in product when shaping, directly cause product rejection.
Summary of the invention
The invention provides a kind of casting die ejected afterwards of first loosing core, a period of time is cooled after product completes cast, first extract plug out downwards, release shrinkage stress, after product is completely shaping, utilize backform bar and ejector beam to eject dynamic model and product successively, be applicable to the die sinking containing through hole product, prevent from occurring cracking phenomena containing through hole product when die sinking.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
First to loose core the mould structure ejected afterwards, comprise frame and be arranged on dynamic model, cover half, movable plug, top board and the hydraulic cylinder in this frame;
Workbench above described frame comprises, the base plate of below and the connecting rod for connecting described workbench and base plate;
Described dynamic model and cover half are in arranging up and down, and contact with each other between dynamic model and cover half and form die cavity, described cover half is fixedly installed on described workbench;
Described movable plug successively through described cover half, workbench and top board, and is vertically arranged in described frame;
Described hydraulic cylinder is vertically arranged on described base plate, and the piston rod of this hydraulic cylinder is connected with described top board, drives described movable plug at cover half by top board, moves up and down between workbench and top board;
Described workbench is vertically furnished with for the backform bar of dynamic model described in jack-up and the ejector beam for product in die cavity described in jack-up.
Further, described movable plug comprises plug main body and is arranged on the upper and lower positive stop lug boss at these plug main body two ends and the Compress Spring be set in the middle part of this plug main body.The design of described positive stop lug boss is the stroke in order to restraint plug moves upward, and movable plug and product can be departed from smoothly, and the effect of described Compress Spring is to can move upward by drive activity plug when hydraulic cylinder pushes top board.
Preferably, described upper limit boss is arranged between described workbench and described Compress Spring, and described lower limit boss is arranged in below described top board, and described Compress Spring is arranged between described upper limit boss and described top board.
Further, described backform bar is fixedly connected with the dynamic model of top through described workbench, and the lower end of described backform bar is provided with jacking block, and this jacking block is positioned at the top of described top board.Top board, when hydraulic cylinder ejects, contacts with described jacking block face, and drives backform bar vertically to rise, thus makes dynamic model depart from cover half and product.
Further, described ejector beam comprises the push rod body of rod passing described cover half and workbench successively and the spring be set on this push rod body of rod.Design and the described movable plug of described ejector beam are similar, and the operation of the spring on ejector beam is also in order to the push rod body of rod can be driven to move upward when hydraulic cylinder pushes top board.
Eject dynamic model and product successively to meet, further, the length of described backform bar is greater than the length of described ejector beam.
Further, described frame also comprises guide support plate, and this guide support plate is slidably connected by guide pillar and described top board, is provided with guide pin bushing between described guide support plate and guide pillar.By the design of guide support plate and guide pillar, the stability loosing core and eject operation can be improved.
Compared with prior art, the invention has the advantages that: after adopting mould structure of the present invention to cast, cool a period of time, first by the drop-down top board of hydraulic cylinder, drive activity plug departs from product through hole, release shrinkage stress, after product is completely shaping, pushes top board by hydraulic cylinder again, promotes backform bar and ejector beam successively, make dynamic model, product departs from successively smoothly.Due to casting mold structure of the present invention, before completing product and cooling completely, carry out loosing core action, the knockout press between product and plug can be lowered, thus the frictional force reduced between plug and product, reduce the wearing and tearing during plug demoulding, increase the life-span of plug, and the stress of interiors of products can be reduced, stop product and produce when die sinking and scrap phenomenon; Mould structure of the present invention, does not need multiple power source, only arranges power source, i.e. a hydraulic cylinder, can reduce the cost of manufacture of mould; In actual application, a hydraulic cylinder just can realize loosing core in mould use procedure and eject a series of actions, can realize automatic demoulding, compared with portable mold, can accelerate the labour intensity of operating efficiency and minimizing workman.
Accompanying drawing explanation
Fig. 1 is the axial sectional view after mould structure matched moulds of the present invention;
Fig. 2 is that mould structure of the present invention is loosed core the axial sectional view of state, and shows product;
Fig. 3 is the axial sectional view of mould structure of the present invention when ejecting dynamic model and product, and shows product.
In figure: 10, frame, 11, workbench, 12, base plate, 13, connecting rod, 14, guide support plate, 15, vertically pole, 20, dynamic model, 30, cover half, 40, movable plug, 41, plug main body, 42, upper limit boss, 43, lower limit boss, 44, Compress Spring, 50, top board, 51, guide pillar, 60, hydraulic cylinder, 70, die cavity, 80, backform bar, 81, jacking block, 90, ejector beam, 91, the push rod body of rod, 92, spring, A, product.
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of preferred embodiment of the present invention is described in detail.
As shown in Figure 1,2 and 3, described mould structure comprises frame 10 and is arranged on dynamic model 20, cover half 30, movable plug 40, top board 50 and the hydraulic cylinder 60 in this frame.
Workbench 11 above described frame 10 comprises, the base plate 12 of below and the connecting rod 13 for connecting described workbench 11 and base plate 12, described workbench 11 is for supporting cover half 30, described base plate 12 is for supporting cylinder 60, described workbench 11 is also connected with guide support plate 14 by vertical pole 15, guide support plate 14 is coordinated with guide pillar 51 by guide pin bushing, guide pillar 51 is fixedly connected with described top board 50, and described top board improves its stability moved up and down by guide pillar 51.
Described dynamic model 20 and cover half 30 are in arranging up and down, and contact with each other between dynamic model 20 and cover half 30 and form die cavity 70, this die cavity is for the formation of cast product.
The Compress Spring 44 that described movable plug 40 comprises plug main body 41 and is arranged on the upper and lower positive stop lug boss at these plug main body two ends (42,43) and is set in the middle part of this plug main body.Described plug main body 41 successively through described cover half 30, workbench 11 and top board 50, and is vertically arranged in described frame 10.The quantity of movable plug 40 is determined according to the number of openings of cast product.
Described upper limit boss 42 is arranged between described workbench 11 and described Compress Spring 44, the design of upper limit boss, it is the stroke in order to restraint plug moves upward, movable plug and product can be departed from smoothly, the upper end of described plug main body 41 is arranged to circular cone shape, for coordinating the through hole of product.Described lower limit boss 43 is arranged in below described top board 50, for driving slide core rod motion when top board moves downward.
Described Compress Spring 44 is arranged between described upper limit boss 42 and described top board 50, and the effect of described Compress Spring is to can move upward by drive activity plug when hydraulic cylinder pushes top board.
Described hydraulic cylinder 60 is vertically arranged on described base plate 12, and the piston rod of this hydraulic cylinder is connected with described top board 50, drives described movable plug 40 at cover half 30 by top board, moves up and down between workbench 11 and top board 50.
In order to enable dynamic model be separated from cover half with product, described mould structure also needs to comprise and is vertically arranged in the backform bar 80 for dynamic model described in jack-up 20 on workbench 11 and the ejector beam 90 for product A in die cavity described in jack-up.
The present embodiment, described backform bar 80 can pass described workbench 11 and be fixedly connected with the dynamic model 20 of top, the lower end of this backform bar is provided with jacking block 81, jacking block 81 is positioned at the top of described top board 50, top board is when hydraulic cylinder ejects, contact with described jacking block face, and drive backform bar vertically to rise, thus make dynamic model depart from cover half and product.Described backform bar 80 can also be arranged to the structure of end band jacking block, and two ends are not fixed, and directly places through workbench.
Described ejector beam 90 comprises successively through the push rod body of rod 91 and the spring 92 that is set on this push rod body of rod of described cover half 30 and workbench 11, its operation principle and described movable plug basically identical.Ejector beam distributes along cover half surface uniform.
Backform bar and ejector beam is promoted successively in order to complete top board smoothly, after described hydraulic cylinder drives described movable plug to loose core downwards, described backform bar lower surface is less than the distance of described ejector beam lower surface to described top board to the distance of described top board, and the length of the bar of backform described in the present embodiment is greater than the length of described ejector beam.
By reference to the accompanying drawings 1,2 and 3, operation principle of the present invention is described:
Mould is not when working, dynamic model 20 and cover half 30 are in arranging up and down, contact with each other between the two and form die cavity 70, mould operationally, first molten metal is poured in die cavity 70 from dynamic model 20 cast gate, product A is formed after cooling a period of time, again by the drop-down top board 50 of hydraulic cylinder 60, drive activity plug 40 moves down, from but its upper end departs from the through hole of product, release stress, top board 50 is pushed by hydraulic cylinder 60 again after product is completely shaping, drive activity plug 40 moves up, when the upper limit boss 42 of movable plug 40 withstands workbench 11, movable plug 40 stop motion, continue to push top board 50 by hydraulic cylinder 60, after top board 50 contacts with the jacking block 81 of backform bar, backform bar 80 is driven to move, after backform bar 80 moves up to contact dynamic model 20, dynamic model 20 is driven to move, thus make dynamic model depart from product A, when top board 50, to continue to move up to contact ejector beam after 90s, ejector beam 90 is driven to move, thus push product A, product is departed from smoothly from cover half 30, complete whole die sinking action.
The above embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (7)
1. the casting mold structure ejected afterwards of first loosing core, it is characterized in that, comprise frame (10) and be arranged on dynamic model (20), cover half (30), movable plug (40), top board (50) and the hydraulic cylinder (60) in this frame;
Workbench (11) above described frame (10) comprises, the base plate (12) of below and the connecting rod (13) for connecting described workbench and base plate;
Described dynamic model (20) and cover half (30) are in arranging up and down, and contact with each other between dynamic model and cover half and form die cavity (70), described cover half (30) is fixedly installed on described workbench (11);
Described movable plug (40) successively through described cover half (30), workbench (11) and top board (50), and is vertically arranged in described frame (10);
Described hydraulic cylinder (60) is vertically arranged on described base plate (12), the piston rod of this hydraulic cylinder is connected with described top board (50), drives described movable plug (40) at cover half by top board, moves up and down between workbench and top board;
Described workbench (11) is vertically furnished with the backform bar (80) for dynamic model described in jack-up (20) and the ejector beam (90) for die cavity described in jack-up (70) interior product.
2. casting mold structure according to claim 1, it is characterized in that, the upper and lower positive stop lug boss (42,43) that described movable plug (40) comprises plug main body (41) and is arranged on these plug main body two ends and the Compress Spring (44) be set in the middle part of this plug main body.
3. casting mold structure according to claim 2, it is characterized in that, described upper limit boss (42) is arranged between described workbench (11) and described Compress Spring (44), described lower limit boss (43) is arranged in described top board (50) below, and described Compress Spring (44) is arranged between described upper limit boss (42) and described top board (50).
4. casting mold structure according to claim 1, it is characterized in that, described backform bar (80) is fixedly connected with the dynamic model (20) of top through described workbench (11), the lower end of described backform bar (80) is provided with jacking block (81), and this jacking block is positioned at the top of described top board (50).
5. casting mold structure according to claim 1, it is characterized in that, described ejector beam (90) comprises the push rod body of rod (91) passing described cover half (30) and workbench (11) successively and the spring (92) be set on this push rod body of rod.
6. casting mold structure according to claim 1, is characterized in that, the length of described backform bar (80) is greater than the length of described ejector beam (90).
7. casting mold structure according to claim 1, it is characterized in that, described frame (10) also comprises guide support plate (14), this guide support plate is slidably connected by guide pillar (51) and described top board (50), is provided with guide pin bushing between described guide support plate (14) and guide pillar (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510825448.1A CN105290331B (en) | 2015-11-24 | 2015-11-24 | A kind of casting mold structure ejected after first core pulling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510825448.1A CN105290331B (en) | 2015-11-24 | 2015-11-24 | A kind of casting mold structure ejected after first core pulling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105290331A true CN105290331A (en) | 2016-02-03 |
| CN105290331B CN105290331B (en) | 2017-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510825448.1A Active CN105290331B (en) | 2015-11-24 | 2015-11-24 | A kind of casting mold structure ejected after first core pulling |
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| Country | Link |
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| CN (1) | CN105290331B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216600A (en) * | 2016-08-31 | 2016-12-14 | 航天海鹰(哈尔滨)钛业有限公司 | A kind of liftout attachment moved moulds on wax injector |
| CN106583655A (en) * | 2017-01-24 | 2017-04-26 | 无锡飞而康精铸工程有限公司 | Novel copper alloy precise casting pouring mold |
| CN107246927A (en) * | 2016-04-26 | 2017-10-13 | 宁波浙铁大风化工有限公司 | A kind of plastics knockout press testing mould and its method of testing |
| CN109366377A (en) * | 2018-12-06 | 2019-02-22 | 河南菩瑞磨料磨具有限公司 | A kind of glass fibre mesh sheet process equipment |
| CN114178477A (en) * | 2021-11-20 | 2022-03-15 | 重庆虎溪电机工业有限责任公司 | Novel ejecting mechanism direction device |
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|---|---|---|---|---|
| EP0179461A2 (en) * | 1984-10-26 | 1986-04-30 | Ube Industries, Ltd. | Horizontal mold clamping and vertical injection type die cast machine |
| CN202278715U (en) * | 2011-10-25 | 2012-06-20 | 牟维军 | Two-step ejecting mould mechanism |
| CN202412618U (en) * | 2011-10-25 | 2012-09-05 | 牟维军 | Mold mechanism with four ejector pin plates for ejecting product twice |
| CN204295970U (en) * | 2014-11-25 | 2015-04-29 | 宁波市港腾塑业有限公司 | A kind ofly first eject the mould structure of loosing core afterwards |
| CN205165746U (en) * | 2015-11-24 | 2016-04-20 | 合肥熠辉轻合金科技有限公司 | Ejecting casting mold structure after loosing core earlier |
-
2015
- 2015-11-24 CN CN201510825448.1A patent/CN105290331B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0179461A2 (en) * | 1984-10-26 | 1986-04-30 | Ube Industries, Ltd. | Horizontal mold clamping and vertical injection type die cast machine |
| CN202278715U (en) * | 2011-10-25 | 2012-06-20 | 牟维军 | Two-step ejecting mould mechanism |
| CN202412618U (en) * | 2011-10-25 | 2012-09-05 | 牟维军 | Mold mechanism with four ejector pin plates for ejecting product twice |
| CN204295970U (en) * | 2014-11-25 | 2015-04-29 | 宁波市港腾塑业有限公司 | A kind ofly first eject the mould structure of loosing core afterwards |
| CN205165746U (en) * | 2015-11-24 | 2016-04-20 | 合肥熠辉轻合金科技有限公司 | Ejecting casting mold structure after loosing core earlier |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246927A (en) * | 2016-04-26 | 2017-10-13 | 宁波浙铁大风化工有限公司 | A kind of plastics knockout press testing mould and its method of testing |
| CN106216600A (en) * | 2016-08-31 | 2016-12-14 | 航天海鹰(哈尔滨)钛业有限公司 | A kind of liftout attachment moved moulds on wax injector |
| CN106216600B (en) * | 2016-08-31 | 2018-09-14 | 航天海鹰(哈尔滨)钛业有限公司 | A kind of liftout attachment for moving moulds on wax injector |
| CN106583655A (en) * | 2017-01-24 | 2017-04-26 | 无锡飞而康精铸工程有限公司 | Novel copper alloy precise casting pouring mold |
| CN109366377A (en) * | 2018-12-06 | 2019-02-22 | 河南菩瑞磨料磨具有限公司 | A kind of glass fibre mesh sheet process equipment |
| CN109366377B (en) * | 2018-12-06 | 2024-04-26 | 河南菩瑞磨料磨具有限公司 | Glass fiber net piece processing equipment |
| CN114178477A (en) * | 2021-11-20 | 2022-03-15 | 重庆虎溪电机工业有限责任公司 | Novel ejecting mechanism direction device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105290331B (en) | 2017-10-03 |
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Address after: 237000 Intersection of Fenghuang Road and Shanyuan Road, San Shi Pu Town, Jin'an District, Lu'an City, Anhui Province Patentee after: Anhui Yihui New Material Co.,Ltd. Address before: No. 18 Yulan Avenue, High tech Zone, Hefei City, Anhui Province, 230088 Patentee before: HEFEI YIHUI LIGHT ALLOY TECHNOLOGY Co.,Ltd. |
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