CN104707967A - Metal die-casting die capable of internally and automatically cutting off sprue - Google Patents
Metal die-casting die capable of internally and automatically cutting off sprue Download PDFInfo
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- CN104707967A CN104707967A CN201310719108.1A CN201310719108A CN104707967A CN 104707967 A CN104707967 A CN 104707967A CN 201310719108 A CN201310719108 A CN 201310719108A CN 104707967 A CN104707967 A CN 104707967A
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Abstract
The invention discloses a metal die-casting die capable of internally and automatically cutting off a sprue. The die is composed of a fixed clamping plate, a moving clamping plate, a stripper plate, a pull needle, pull rods, a guide column, a resin die opener, a sliding block and a pressing block. The first pull rod (7), the second pull rod (6), the resin die opener (18) and the pull needle (21) are communicated to form an automatic cut-off mechanism of a die gating system. The pull needle (21) and the stripper plate form a gating system freezing material disengagement device. A first ejector pin (15), a second ejector pin (33), a rack core (32), an ejector pin plate and an ejector pin fixing plate are communicated to form a die ejecting mechanism. An inclined guide column (26), an inclined pressing block (27), a sliding block (30) and a first spring (31) are communicated to form a die side face core-pulling mechanism. According to the metal die-casting die, the action is firm and reliable, pressure transfer is good, the automatic sprue shearing efficiency of the die is high, and by means of optimized module design, the structure is compact, and manufacturing, installation, debugging and maintenance are convenient.
Description
Technical field
The present invention relates to die cast metal shaping, is the metal die-casting mold of automatic break gate in mould.
Background technology
The running gate system of metal die-casting mold refers to the flow channel of melt from the injection drift of die casting machine to die cavity.To its requirement be: melt is introduced die cavity reposefully, make it to fill die cavity on request; The gas of die cavity is discharged smoothly; In filling melt die cavity and the process of solidifying, fully pressure can be passed to each position of die cavity, dense structure, profile are clear to obtain, the die casting of dimensionally stable.Visible, the importance of metal die-casting mold Design of Runner System.Can the design correctness of running gate system be that can die cast carry out smoothly, obtain the key of high-quality die casting.The composition of running gate system is different according to the structure of compression mod, and the composition of running gate system is also different, but is usually made up of sprue, runner, cast gate and slag well four part.What play a decisive role in running gate system is cast gate.At present, the cast gate that the design of metal die-casting mold adopts usually has following version: (1) drop gate: also known as main flow channel type cast gate, be characterized in: melt directly enters die cavity by sprue, its flow process is short, charging is fast, and flow resistance is little, and transmission of pressure is good, pressurize feeding effect is strong, is conducive to exhaust and eliminates weld mark.Running gate system feed consumption is few simultaneously, and mould structure is simple and compact, easily manufactured, but removes cast gate inconvenience, and goods have obvious gate vestiges, cast gate position heat is concentrated, and late, internal stress is large in die cavity sealing, easily produces pore and shrinkage cavity.(2) spider gate: it makes whole circumference charging the charging of into several segment circular arc, removes cast gate convenient, and the solidifying material of running gate system is few, but goods easily produce weld mark, thus have impact on product strength and outward appearance.(3) claw type cast gate: it is the variation of spider gate, is mainly used in high tubular or axiality and requires higher, and the product molding that aperture is less.Because gate size is less, remove cast gate convenient, but goods easily produce weld mark.(4) side gate: also known as edge-gated, it is opened on the die joint of mould, from the charging of goods lateral edge.It conveniently can adjust gate size, controls shear rate and cast gate off-period.But the pressure loss is large, and pressurize feeding effect is less than drop gate, exhaust inconvenience, easily produces the defects such as weld mark, shrinkage cavity and pore.(5) fan gate: it is commonly used to the larger laminar foundry goods of forming width, and its flow process is short, effective, but due to gate size large, clout inconvenience removed by foundry goods, leaves larger vestige outside foundry goods.In order to avoid die casting produces weld mark, the welding in stowing operation between stream exists, and to ensure the intensity of foundry goods, prevents stream by core or inserts crimp, also will reach shearing pouring gate problem easily simultaneously.I combines and manufactures and designs experience for many years, and spy provides following a kind of die-casting forming die to solve the problems referred to above.
Summary of the invention
The present invention is to provide the metal die-casting mold of automatic break gate in mould, this mould is in order to reach the object automatically at mould internal cutting off foundry goods and running gate system, therefore stationary mould for mould one side adopts three-plate type structure, the top clamping plate of stationary mould for mould one side arranges well formula sprue cover (22), runner is arranged on after solid plate, then the cast gate be communicated with foundry goods is set after solid plate, in order to reach the object that cast gate and foundry goods cut off, then be provided with on the main sprue bush of well formula (22) break cast gate draw material pin (21).This mould, in order to after running gate system cut-out, deviates from the object outside mould automatically, so be provided with the first pull bar (7), so that the first pull bar (7) drives runner plate outside the clout launch mode of running gate system when die sinking.In order to the activity flexibility and reliability of runner plate and cavity plate, this mould is provided with four guide pillars to ensure the guide effect of runner plate and cavity plate stationary mould for mould one side.Because running gate system periphery heat is concentrated, this mould is provided with the circulating cooling water route that Cooling Water passes through respectively in cavity plate and fixed mold core.In order to the action of shearing pouring gate is solid and reliable, this mould gate diameter is designed to 0.5mm, and is provided with the gradient of 35 °.In order to ensure the dexterous actions of cavity plate, this mould is provided with four springs on cavity board, to increase the flexible movements degree of cavity plate.In order to the precision of the die sinking and matched moulds that ensure dynamic model and cover half, this mould is provided with four guide pillars mould dynamic model one side.In sum, this mould action is solid and reliable, is of value to metal die-casting mold automatic shearing cast gate when moulding by casting, is conducive to the visual quality of casting, is of value to the automaticity of mould, is conducive to reducing the large problem of labor strength.The metal die-casting mold of automatic break gate in mould, solve the solidifying material of common metal die-casting die casting system deviate from foundry goods together with mould outer time, when mould external cutting off, labor strength greatly, leaves the problem of sharp trace after goods and cast gate excise.Solve common metal die casting, the pressure loss is large, and pressurize feeding effect is little, exhaust inconvenience, easily produces the problem of weld mark, shrinkage cavity and pore.Solve common metal die casting, the inconvenience of removal cast gate, the problem that cast gate position heat is concentrated, die cavity sealing is slow, internal stress is large.The metal die-casting mold of automatic break gate in mould, it is characterized in that: well formula sprue cover (22) soket head cap screw is fastened on cover half backing plate, material pin (21) and well formula sprue cover (22) is drawn to be slidably matched, material pin (21) and headless screw (24) is drawn to lock, the first pull bar (7) be arranged on cover half backing plate becomes screw threads for fastening to be connected with the second pull bar (6) being arranged on dynamic model one side, fixed mold core (3) the first screw (8) is fastened in cavity plate, mavable module core (2) the second screw (9) is fastened in moving platen (1), mould top (12) the 3rd screw (11) is fastenedly connected on dynamic model backing plate, tooth bar core (32), second thimble (33) is arranged on ejector retainner plate, tooth bar core (32), second thimble (33) becomes to be slidably matched with the hole on mavable module core (2), Angle Pin (26) is arranged in the inclined hole of cavity plate, Angle Pin (26) pressing plate (25) compresses, slide block (30) is arranged in the guide runner of moving platen, slide block (30) and the Angle Pin (26) being arranged on cover half one side, baroclinic block (27) matched in clearance, second spring (20) is arranged in moving platen (1) stepped hole below, 4th screw (13) connects support plate and dynamic backing plate in aggregates, 5th screw (19) is communicated with moving platen (1) with support plate is fastening, resin mold opening device (18) uses the screw fastening of M8 on moving platen (1), resin cover on resin mold opening device (18) becomes matched in clearance with the hole on solid plate.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described
Shown in figure
Fig. 1 is the metal die-casting mold of automatic break gate, the mechanism of automatic break gate installation situation sectional side elevation in a mold during matched moulds.
Fig. 2 is the sectional side elevation of the metal die-casting mold of automatic break gate, resin mold opening device, cooling system, ejecting mechanism.
Fig. 3 is the metal die-casting mold of automatic break gate, sectional side elevation during matched moulds moulding by casting.
In figure, numeral number represents respectively:
1---moving platen 2---mavable module core 3---cover half
4---the 6th screw 5---the 7th screw 6---the second pull bars
7---the first pull bar 8---first screw 9---the second screws
10---the 9th screw 11---the 3rd screw 12---mould tops
13---the 4th screw 14---exhaust needle 15---the first thimbles
17---water proof ring 18---resin mold opening device 19---the 5th screws
20---the second spring 21---draw material pin 22---well formula sprue cover
23---the 8th screw 24---headless screw 25---pressing plates
26---Angle Pin 27---baroclinic block 28---M8 screws
29---M6 screw 30---slide block 31---the first springs
32---tooth bar core 33---second thimble
Detailed description of the invention:
The metal die-casting mold of automatic break gate as shown in the figure, this mould is in order to reach the object automatically at mould internal cutting off foundry goods and running gate system, therefore stationary mould for mould one side adopts three-plate type structure, the top clamping plate of stationary mould for mould one side arranges well formula sprue cover (22), runner is arranged on after solid plate, then the cast gate be communicated with foundry goods is set after solid plate, in order to reach the object that cast gate and foundry goods cut off, then be provided with on the main sprue bush of well formula (22) break cast gate draw material pin (21).This mould, in order to after running gate system cut-out, deviates from the object outside mould automatically, so be provided with the first pull bar (7), so that the first pull bar (7) drives runner plate outside the clout launch mode of running gate system when die sinking.In order to the activity flexibility and reliability of runner plate and cavity plate, this mould is provided with four guide pillars to ensure the guide effect of runner plate and cavity plate stationary mould for mould one side.Because running gate system periphery heat is concentrated, this mould is provided with the circulating cooling water route that Cooling Water passes through respectively in cavity plate and fixed mold core.In order to the action of shearing pouring gate is solid and reliable, this mould gate diameter is designed to 0.5mm, and is designed with the gradient of 35 °.In order to ensure the dexterous actions of cavity plate, this mould is provided with four springs on cavity board, to increase the flexible movements degree of cavity plate.In order to the precision of the die sinking and matched moulds that ensure dynamic model and cover half, this mould is provided with four guide pillars mould dynamic model one side.The operating principle of this mould is: when mould is installed on die casting machine, debugging, fastening good, through moulding by casting, pressurize feeding, after cold dynamic sizing, mould dynamic model part is opened under the power of die casting machine, in this opening procedure, the resin mold opening device (18) be arranged on moving platen (1) produces frictional force with the hole in cavity plate, so drive cavity plate to slide on cover half guide pillar, action due to cavity plate just forces the cast gate in running gate system and foundry goods to cut off, in this cutting-off process, cover half one side moved to by material pin (21) that draws that the solidifying material of running gate system is installed on well formula sprue cover (22), now mould continues die sinking, when the step of the stepped hole in die sinking to the counter sink portion and cavity plate of the second pull bar (6) is collided, mould opening force now in cavity plate passes to the second pull bar (7), first order step on second pull bar (7) plays the anti-power pushed away to stripper plate, so stripper plate draws the outer (note: the height overall that the die sinking gap of stripper plate and cavity plate should be greater than running gate system is about 10-15mm of the anti-launch mode of the solidifying material of the running gate system on material pin (21) herein being bonded at, so that it is outer that the solidifying material of running gate system drops out mould by deadweight), mould continues die sinking, when die sinking spacing is greater than foundry goods height about 25 ~ 30mm, die casting machine stops action, now die casting machine central ejector rod and four side push rods promote mould ejector plate simultaneously and drive the first thimble (15), second thimble (33), tooth bar core (32) is outside foundry goods launch mode.(note: while die sinking, the sliding action that the Angle Pin (26) being arranged on cover half one side is with movable slider (30) to make mould lateral surface completes loosing core of foundry goods side.) when foundry goods is deviate from after outside mould, when mould resets, do the action that die sinking is contrary, after each die joint is completely closed, the moulding by casting carrying out next cycle just locked by mould.The modular design of this mould through optimizing, structure is very classical, and mold actions is solid and reliable, Making mold, installation, debugging, easy to maintenance.
Claims (1)
1. the metal die-casting mold of automatic break gate, it is characterized in that: well formula sprue cover (22) soket head cap screw is fastened on cover half backing plate, after drawing material pin (21) and well formula sprue cover (22) to be slidably matched, draw material pin (21) headless screw (24) locking, the first pull bar (7) be arranged on cover half backing plate becomes screw threads for fastening to be connected with the second pull bar (6) being arranged on dynamic model one side, fixed mold core (3) the first screw (8) is fastened in cavity plate, mavable module core (2) the second screw (9) is fastened in moving platen (1), mould top (12) the 3rd screw (11) is fastenedly connected on dynamic model backing plate, tooth bar core (32), second thimble (33) is arranged on ejector retainner plate, tooth bar core (32), second thimble (33) front end becomes to be slidably matched with the hole on mavable module core (2), Angle Pin (26) is arranged on Angle Pin (26) pressing plate (25) in the inclined hole of cavity plate and compresses, slide block (30) is arranged in the guide runner of moving platen, slide block (30) and the Angle Pin (26) being arranged on cover half one side, baroclinic block (27) matched in clearance, second spring (20) is arranged in moving platen (1) stepped hole below, 4th screw (13) connects support plate and dynamic backing plate in aggregates, 5th screw (19) is communicated with moving platen (1) with support plate is fastening, resin mold opening device (18) uses the screw fastening of M8 on moving platen (1), resin cover on resin mold opening device (18) becomes matched in clearance with the hole on solid plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310719108.1A CN104707967A (en) | 2013-12-13 | 2013-12-13 | Metal die-casting die capable of internally and automatically cutting off sprue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310719108.1A CN104707967A (en) | 2013-12-13 | 2013-12-13 | Metal die-casting die capable of internally and automatically cutting off sprue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104707967A true CN104707967A (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310719108.1A Pending CN104707967A (en) | 2013-12-13 | 2013-12-13 | Metal die-casting die capable of internally and automatically cutting off sprue |
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| CN (1) | CN104707967A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397060A (en) * | 2015-11-10 | 2016-03-16 | 苏州三基铸造装备股份有限公司 | Vertical-type high-pressure casting die for in-die automatic cutting casting system |
| CN107335791A (en) * | 2017-07-21 | 2017-11-10 | 中联精工（天津）有限公司 | Cast member waste material automatic recycling device |
| CN108339960A (en) * | 2018-04-13 | 2018-07-31 | 广东鸿图科技股份有限公司 | A kind of die casting equipment and pressure casting method preventing running channel adherency cover half |
| CN109397659A (en) * | 2018-12-27 | 2019-03-01 | 大连銮艺精密模塑制造有限公司 | Mold equipped with efficient cooling water channel |
-
2013
- 2013-12-13 CN CN201310719108.1A patent/CN104707967A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397060A (en) * | 2015-11-10 | 2016-03-16 | 苏州三基铸造装备股份有限公司 | Vertical-type high-pressure casting die for in-die automatic cutting casting system |
| CN107335791A (en) * | 2017-07-21 | 2017-11-10 | 中联精工（天津）有限公司 | Cast member waste material automatic recycling device |
| CN107335791B (en) * | 2017-07-21 | 2022-12-06 | 大川精工(朝阳)有限公司 | Automatic recovery device for casting waste |
| CN108339960A (en) * | 2018-04-13 | 2018-07-31 | 广东鸿图科技股份有限公司 | A kind of die casting equipment and pressure casting method preventing running channel adherency cover half |
| CN109397659A (en) * | 2018-12-27 | 2019-03-01 | 大连銮艺精密模塑制造有限公司 | Mold equipped with efficient cooling water channel |
| CN109397659B (en) * | 2018-12-27 | 2023-12-08 | 大连銮艺精密模塑制造有限公司 | Die with efficient cooling waterway |
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| DD01 | Delivery of document by public notice |
Addressee: Mou Weijun Document name: Notification that Application Deemed to be Withdrawn |
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| DD01 | Delivery of document by public notice | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150617 |
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| WD01 | Invention patent application deemed withdrawn after publication |