CN203844121U - Mould mechanism for expansion mold core - Google Patents

Mould mechanism for expansion mold core Download PDF

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Publication number
CN203844121U
CN203844121U CN201420201890.8U CN201420201890U CN203844121U CN 203844121 U CN203844121 U CN 203844121U CN 201420201890 U CN201420201890 U CN 201420201890U CN 203844121 U CN203844121 U CN 203844121U
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CN
China
Prior art keywords
core
mould
mold core
moving platen
goods
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Expired - Fee Related
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CN201420201890.8U
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Chinese (zh)
Inventor
牟维军
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Individual
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Individual
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Priority to CN201420201890.8U priority Critical patent/CN203844121U/en
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Publication of CN203844121U publication Critical patent/CN203844121U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a mould mechanism for an expansion mold core. The mould mechanism consists of a fixed die base plate, a first pull rod, a fixed die plate, a sprue bushing, a guide post, a first movable die plate, a first screw, a second movable die plate, a third movable die plate, a fourth movable die plate, a spring, a connecting rod, a second mold core, a push plate, a second screw, a third mold core, a second mold core, a baffle plate, a second pull rod and a movable die base plate, wherein the first mold core (18), the second mold cores (14) and the third mold core (17) are connected in a matching mode so as to form the expansion mold core of the mould; the first mold core (18) is communicated with the connecting rod (13); the connecting rod (13) is arranged in a hole of the movable die plate (7); the connecting rod (13) moves by virtue of the compressed spring (12) arranged in the movable die plate (7). According to the mould mechanism, the problem that hydraulic, atmospheric pressure and large-scale core-pulling components cannot be used because of limited positions in the mould when the inner side of the product is subjected to core-pulling is effectively solved; the mould mechanism is simplified greatly, the mould cost is reduced, and the production efficiency is improved.

Description

The mold mechanism of harmomegathus core
Technical field
The present invention relates to injection-moulding plastic and die cast metal moulding, is the mold mechanism of harmomegathus core.
Background technology
Manufacture boundary at mould, the classification of side-parting core-pulling mechanism is according to power resources difference, and that side-parting core-pulling mechanism can be divided into is motor-driven, hydraulic pressure or pneumatic and manual several large classes.Motor-driven side-parting core-pulling mechanism is to utilize injector die sinking matched moulds as power, by relevant driving parts, masterpiece is made to its undercut for side direction forming part or by its side core-pulling, when matched moulds, by relevant driving parts, side direction forming part is resetted again.This class mold mechanism can be realized automated production, and the efficiency that comes into force is high.But mould structure is very complicated, and die manufacturing cycle is long, mold repair, debugging, installation inconvenience.Hydraulic pressure or pneumatic side-parting core-pulling mechanism, it is to carry out somatotype and loose core as power using hydraulic coupling or compressed air, by hydraulic coupling or compressed air, side direction forming part is resetted too.This class core-pulling mechanism moves back and forth to realize by hydraulic cylinder or cylinder piston looses core and reset, the balance of movement of loosing core, and withdrawing power is large, the distance of loosing core, but must manufacture the auxiliary component of more installation hydraulic cylinder and cylinder, die cost is high.Manually undercut with loose core, it is utilize manpower by mould undercut or loose core, though this class mould is simple in structure, cost is low, production efficiency is extremely low, labor strength is very big, quality of item is poor, safety of workers can not get ensureing.In order to overcome the deficiency of above-mentioned several mold mechanisms, I provide following a kind of mold mechanism to solve problem in conjunction with the production line experience spy that manufactures and designs for many years.
Summary of the invention
The present invention is to provide the mold mechanism of harmomegathus core, as shown in the figure, this model's point: design according to article shape feature, goods are the long 200mm of being simultaneously, height is the Tapered Cup of 80mm, has a rectangular hole on the two sides of goods simultaneously, and goods are to adopt transparent plastic injection moulding, the appearance requirement of goods is high, and outer surface and inner surface do not allow to leave bubble, shrink and eject vestige.The slot moulding of goods side is pith and the difficult point of these goods, if adopt hydraulic pressure or air pressure somatotype and loosed core the moulding at this place, the volume of side mold must increase, complete the words of loosing core from goods inside simultaneously, because product size position is limited, cannot complete and loose core at all.If complete somatotype and loose core from the outer surface of goods, hydraulic cylinder or cylinder are installed hydraulic cylinder or cylinder according to the gradient in hole on goods again, often go out goods two hydraulic cylinders or cylinder must be installed simultaneously, and die cost increases substantially.If the mechanism that adopts manual somatotype and loose core completes the moulding of these goods, because goods are transparent, simultaneously goods have not allowed any vestige, so manual somatotype and to loose core be also the moulding that cannot complete these goods.Therefore in conjunction with the problems referred to above, so this mould adopts core is divided into three component parts, be i.e. the first core (18), the second core (14), (17) three parts of the 3rd core in the time of moulding.When matched moulds, three part amalgamations under the effect of injector pressure complete the moulding of slot on the inside of goods and side together.When die sinking, under the power of injector, the 3rd core (17) retreats with injector, due to rear mobile work of the 3rd core (17), now the first core (18), the second core (14) lose pressure, spring (12) the promotion connecting rod (13) being arranged in moving platen (7) hole forces the first core (18) and the second core (14) to separate with goods, reaches the somatotype of goods inner side and the object of loosing core of slot.This mould ranking adopts the mould four symmetrical rows in chambeies, is of value to like this four groups of manufactures of shrinking cores, easy for installation.This mould enters to water system and adopts edge-gated 2 chargings of outer ledge from every goods.This mould does not design ejecting mechanism, deviating from of goods is while utilizing the first core (18) and the second core (14) to shrink to side direction in mould, when namely goods separate with moulding section, goods drop out mould from the gap of opening by deadweight.This mould cooling system is that many row's circulation waterways are set on the solid plate (3) in cover half side, directly cooling forming die cavity, and this cooling effect is fabulous, has effectively prevented that goods from producing the appearance of shrinking trace and flow liner.The action of this mold mechanism is solid and reliable, and pressure transmission is good, and the mould features compact structure, simple is of value to the convenience of mould manufacture, installation, debugging and mold repair, has saved largely molding cost.The mold mechanism of harmomegathus core, has solved motor-driven undercut core-pulling mechanism mould structure complexity, die manufacturing cycle is long, the problem of mold repair, debug difficulties.Solve the problem that hydraulic pressure or air pressure somatotype and core-pulling mechanism die cost are high.Solve the problem that manual side-parting core-pulling mechanism mould production efficiency is low, safety of workers can not get guarantee.The mold mechanism of harmomegathus core, it is characterized in that: the first core (18), the second core (14), the 3rd core (17) connects and coordinates the rear harmomegathus core that forms this mould, described the first core (18) is communicated with connecting rod (13), connecting rod (13) is arranged in the hole of moving platen (7), the motion of connecting rod (7) is that dependence is arranged on the elastic force of the interior Compress Spring of moving platen (7) (12) and moves, the 3rd core (17) is communicated with push pedal (15), the first moving platen (7), the second moving platen (9), the 3rd moving platen (10), the 4th moving platen (11), mould pin (21), it is to form mould dynamic model part after an entirety that Bottom clamp plate (22) is fastenedly connected, top clamping plate (1) and sprue bush matched in clearance, pull bar (2), guide pillar (5) and top clamping plate (1), solid plate (3) matched in clearance, guide pillar (5) is in the time of matched moulds and the first moving platen (7), the second moving platen (9) is glade plane space and coordinates, top clamping plate (1), solid plate (3) is fastenedly connected this mould cover half part of rear formation.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is further described
Shown in figure:
Fig. 1 is the sectional side elevation in mold mechanism matched moulds when cast of harmomegathus core
Sectional side elevation when Fig. 2 is the mold mechanism die sinking of harmomegathus core
In figure, numeral number represents respectively:
1---top clamping plate 2---first pull bar 3---solid plate
4---sprue bush 5---guide pillar 6---goods
7---the first moving platen 8---first screw 9---the second moving platens
10---the 3rd moving platen 11---the 4th moving platen 12---springs
13---connecting rod 14---second core 15---push pedals
16---the second screw 17---the 3rd core 18---the second cores
19---block 20---second pull bar 21---mould pin
22---Bottom clamp plate
Detailed description of the invention:
The mold mechanism of harmomegathus core as shown in the figure, this model's point: design according to article shape feature, goods are the long 200mm of being simultaneously, height is the Tapered Cup of 80mm, on the two sides of goods, there is a rectangular hole simultaneously, goods are to adopt transparent plastic injection moulding, and the appearance requirement of goods is high, and outer surface and inner surface do not allow to leave bubble, shrink and eject vestige.The slot moulding of goods side is pith and the difficult point of these goods, if adopt hydraulic pressure or air pressure somatotype and loosed core the moulding at this place, the volume of side mold must increase, complete the words of loosing core from goods inside simultaneously, because product size position is limited, cannot complete and loose core at all.If complete somatotype and loose core from the outer surface of goods, hydraulic cylinder or cylinder are installed hydraulic cylinder or cylinder according to the gradient in hole on goods again, often go out goods two hydraulic cylinders or cylinder must be installed simultaneously, and die cost increases substantially.If the mechanism that adopts manual somatotype and loose core completes the moulding of these goods, because goods are transparent, simultaneously goods have not allowed any vestige, so manual somatotype and to loose core be also the moulding that cannot complete these goods.Therefore in conjunction with the problems referred to above, so this mould adopts core is divided into three component parts, be i.e. the first core (18), the second core (14), (17) three parts of the 3rd core in the time of moulding.When matched moulds, three part amalgamations under the effect of injector pressure complete the moulding of slot on the inside of goods and side together.When die sinking, under the power of injector, the 3rd core (17) retreats with injector, due to rear mobile work of the 3rd core (17), now the first core (18), the second core (14) lose pressure, spring (12) the promotion connecting rod (13) being arranged in moving platen (7) hole forces the first core (18) and the second core (14) to separate with goods, reaches the somatotype of goods inner side and the object of loosing core of slot.This mould ranking adopts the mould four symmetrical rows in chambeies, is of value to like this four groups of manufactures of shrinking cores, easy for installation.This mould enters to water system and adopts edge-gated 2 chargings of outer ledge from every goods.This mould does not design ejecting mechanism, deviating from of goods is while utilizing the first core (18) and the second core (14) to shrink to side direction in mould, when namely goods separate with moulding section, goods drop out mould from the gap of opening by deadweight.This mould cooling system is that many row's circulation waterways are set on the solid plate (3) in cover half side, directly cooling forming die cavity, and this cooling effect is fabulous, has effectively prevented that goods from producing the appearance of shrinking trace and flow liner.This mould operating principle is: when mould is arranged in injector, after moulding by casting, pressurize feeding, cooling and shaping, mould dynamic model part is moved after with injector under the power of injector, and now goods (6) are with moving the die cavity that is drawn out solid plate (3) after dynamic model.Dynamic model moves after continuing, when die sinking is apart from being greater than after running gate system sprue and goods (6) height, the second pull bar (20) and the first pull bar (2) are to dynamic model part limit movement, when dynamic model part stops after action, injector push rod pulls push pedal (15) action, due to rear mobile work of push pedal (15), force the 3rd core (17) from the first core (18), between the second core (14), extract out, due to the 3rd core (17) and the first core (18), the second core (14) separately, at this moment, the first core (18), the second core (14) loses pressure, spring (12) in being mounted in the first moving platen (7) hole promotes connecting rod (13) and drives the first core (18), the second core (14) inwardly shrinks, the first core (18), the inside contraction of the second core (14), so goods (6) and the first core (18), the second core (14) separately.After goods (6) and the first core (18), the second core (14) separate completely, goods (6) are by dropping out outside mould from the die sinking gap location focusing between solid plate (3) and the first moving platen (7).When mould resets, injector contrary action while driving dynamic model part to do die sinking, first be that injector drives dynamic model to cover half direction closure, when after dynamic model and cover half closure, injector push rod promotes push pedal (15) and drives the 3rd core (17) to insert the first core (18), in the gap of the second core (14), force the first core (18) and the second core (14) to move to mould lateral direction, when the 3rd core (17), the first core (18), after the complete closure of the second core (14), injector is just carried out the moulding by casting in next cycle to mould.

Claims (1)

1. the mold mechanism of harmomegathus core, it is characterized in that: the first core (18), the second core (14), the 3rd core (17) connects and coordinates the rear harmomegathus core that forms this mould, described the first core (18) is communicated with connecting rod (13), connecting rod (13) is arranged in the hole of moving platen (7), the motion of connecting rod (7) is that dependence is arranged on the elastic force of the interior Compress Spring of moving platen (7) (12) and moves, the 3rd core (17) is communicated with push pedal (15), the first moving platen (7), the second moving platen (9), the 3rd moving platen (10), the 4th moving platen (11), mould pin (21), it is to form mould dynamic model part after an entirety that Bottom clamp plate (22) is fastenedly connected, top clamping plate (1) and sprue bush matched in clearance, pull bar (2), guide pillar (5) and top clamping plate (1), solid plate (3) matched in clearance, guide pillar (5) is in the time of matched moulds and the first moving platen (7), the second moving platen (9) is glade plane space and coordinates, top clamping plate (1), solid plate (3) is fastenedly connected this mould cover half part of rear formation.
CN201420201890.8U 2014-04-18 2014-04-18 Mould mechanism for expansion mold core Expired - Fee Related CN203844121U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420201890.8U CN203844121U (en) 2014-04-18 2014-04-18 Mould mechanism for expansion mold core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420201890.8U CN203844121U (en) 2014-04-18 2014-04-18 Mould mechanism for expansion mold core

Publications (1)

Publication Number Publication Date
CN203844121U true CN203844121U (en) 2014-09-24

Family

ID=51557177

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420201890.8U Expired - Fee Related CN203844121U (en) 2014-04-18 2014-04-18 Mould mechanism for expansion mold core

Country Status (1)

Country Link
CN (1) CN203844121U (en)

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140924

Termination date: 20150418

EXPY Termination of patent right or utility model