CN109986047A - Die casting equipment - Google Patents

Die casting equipment Download PDF

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Publication number
CN109986047A
CN109986047A CN201810002294.XA CN201810002294A CN109986047A CN 109986047 A CN109986047 A CN 109986047A CN 201810002294 A CN201810002294 A CN 201810002294A CN 109986047 A CN109986047 A CN 109986047A
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CN
China
Prior art keywords
gate
die casting
casting equipment
dynamic
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.)
Granted
Application number
CN201810002294.XA
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Chinese (zh)
Other versions
CN109986047B (en
Inventor
槻庆一
米田亨
尾崎知行
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.)
YKK Corp
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YKK Corp
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Publication date
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Priority to CN201810002294.XA priority Critical patent/CN109986047B/en
Publication of CN109986047A publication Critical patent/CN109986047A/en
Application granted granted Critical
Publication of CN109986047B publication Critical patent/CN109986047B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20Accessories: Details
    • B22D17/22Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20Accessories: Details
    • B22D17/22Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/2272Sprue channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/27Sprue channels Runner channels or runner nozzles
    • B29C45/2701Details not specific to hot or cold runner channels
    • B29C45/2708Gates

Abstract

The present invention provides a kind of bending that can prevent cross gate when die sinking in simple structure, the die casting equipment to prevent molded product from deforming.Die casting equipment has: the cover half (20) with multiple type chambers (21);Dynamic model (30) with multiple type chambers (31);And the sliding die (40) for configuring between cover half (20) and dynamic model (30) and being moved on the direction orthogonal with mold opening and closing direction.Be formed with the cross gate slot (32) connecting with multiple type chambers (21,31) on dynamic model (30), sliding die (40) have the embedded type core (41) retreated relative to multiple type chambers (21,31) and in molding between cover half (20) and cross gate slot (32) and be positioned over cross gate slot (32) position central slide core (42).Central slide core (42) is located in die sinking to be taken shape on the cross gate (Rc, Rs) in cross gate slot (32).

Description

Die casting equipment
Technical field
The present invention relates to die casting equipments, specifically, being for example related to the pressure of the slider body for forming slider for slide fastener Casting device.
Background technique
As previous die casting equipment, it is known that following device: sprue bush is divided into nozzle contacting side point and cross gate side Partially this two parts, nozzle contacting side point are fixed on cover half, and cross gate side section is by being formed in it between cover half Gap and can movably be arranged relative to cover half, in nozzle contacting side configured with spiral bullet point cross gate side section between Spring (referring for example to patent document 1).In the die casting equipment, when die sinking, nozzle can be made by the active force of helical spring Contacting side point is certainly separated with cross gate side section, and will not generate big ejection resistance for the moment, can be by sprue It is certainly demoulded from cover half.
Existing technical literature
Patent document
Patent document 1: No. 2815919 bulletins of Japanese Patent No.
Summary of the invention
However, in the die casting equipment that above patent document 1 is recorded, since structure is complicated, so manufacturing cost is high and ties up Shield property is low.In addition, due to needing to be arranged nozzle contacting side point, cross gate side section and the space of helical spring, so fixed The thickness of mould becomes larger, so that device becomes enlargement.
In addition, in the case where sprue bush not to be divided into nozzle contacting side point and this two-part situation of cross gate side section, When being opened, it is possible to generate very big ejection resistance for the moment between cover half and sprue, sprue is by cover half side Traction, cross gate bending, so as to cause molded product deformation.
The present invention is proposed in view of aforementioned situation, it is intended that providing one kind can prevent in simple structure The bending of cross gate when being only opened, the die casting equipment for preventing molded product from deforming.
Above-mentioned purpose of the invention is reached by following structures.
(1) a kind of die casting equipment, has: the cover half with multiple type chambers;Dynamic model with multiple type chambers;Exist with configuration The sliding die moved between cover half and dynamic model and on the direction orthogonal with mold opening and closing direction, the feature of the die casting equipment exist In being formed with the cross gate slot connecting with multiple type chambers on dynamic model, sliding mould is standby: embedded type core, relative to multiple types Chamber is retreated;With central slide core, between cover half and cross gate slot and the position of cross gate slot is positioned in molding, Central slide core is in die sinking on the cross gate taken shape in cross gate slot.
(2) die casting equipment according to (1), which is characterized in that be formed on dynamic model and guide central slide core Mobile guide groove is formed with the ridge chimeric with guide groove on central slide core.
(3) die casting equipment according to (1) or (2), which is characterized in that be formed with and supplied from injection (mo(u)lding) machine on cover half The sprue hole of the fusant injection of injection is had by the molding molding of die casting equipment and is directly poured by what sprue hole was formed Road, central slide core configuration is on the periphery of sprue.
Invention effect
According to the present invention, the cross gate slot connecting with multiple type chambers is formed on dynamic model, sliding mould is standby relative to more Embedded type core that a type chamber is retreated and in molding between cover half and cross gate slot and the position that is positioned over cross gate slot Central slide core, central slide core on the cross gate taken shape in cross gate slot, therefore, work as die sinking in die sinking When, cross gate can be blocked by central slide core, can draw cross gate near dynamic model.It therefore, can be in simple structure The bending for preventing cross gate when die sinking, to prevent the deformation of molded product.
Detailed description of the invention
Fig. 1 is the longitudinal section view for illustrating an embodiment of die casting equipment of the invention.
Fig. 2 is the top view of the cavity side of cover half shown in FIG. 1.
Fig. 3 is the top view of the cavity side of dynamic model shown in FIG. 1.
Fig. 4 is the line A-A cross-sectional view of Fig. 1 in the state that mold fully opens afterwards.
Fig. 5 is the line B-B cross-sectional view of Fig. 3.
Fig. 6 is the cross-sectional view corresponding with Fig. 4 for illustrating molding state.
Fig. 7 is the sectional block diagram on the sprue periphery under molding state.
Fig. 8 is the cross-sectional view corresponding with Fig. 4 for the state for illustrating that cross gate is blocked by central slide core when die sinking.
The sectional block diagram on sprue periphery when Fig. 9 is die sinking.
Figure 10 be illustrate die casting equipment according to the present invention an embodiment and the perspective view of molding molding.
Figure 11 is the enlarged partial isometric view of the dynamic model of old-fashioned die casting equipment.
Figure 12 is the figure on the flowing of the molten metal in the die casting equipment of explanatory diagram 11, molding sprue periphery.
Figure 13 is the perspective view of the melting loss of the embedded type core in the die casting equipment of explanatory diagram 11.
Figure 14 is the top view of the cavity side of the variation of cover half.
Description of symbols
10 die casting equipments
20 cover half
21 type chambers
22 sprue holes
30 dynamic models
31 type chambers
32 cross gate slots
33 rectification parts
34 guide grooves
40 sliding dies
41 embedded type cores
41a type chamber
42 central slide cores
42a recess portion
42b ridge
D molding
The center Rc cross gate
The side Rs cross gate
SP sprue
SD molded product
P is pushed portion
ST stepped part
Specific embodiment
Hereinafter, being specifically described based on an embodiment of the attached drawing to die casting equipment of the invention.In addition, later Explanation in, upside is set as the upside of the paper relative to Fig. 1, and downside is set as the downside of the paper relative to Fig. 1, and left side is set as The left side of paper relative to Fig. 1, right side are set as the right side of the paper relative to Fig. 1, and front side is set as the paper relative to Fig. 1 Nearby side, rear side are set as the inboard of the paper relative to Fig. 1.
As shown in Figure 1 to 4, the die casting equipment 10 of present embodiment has: cover half 20, has multiple types in lower surface Chamber 21;Dynamic model 30 is configured in the lower section of cover half 20, and has multiple type chambers 31 in upper surface;With the sliding die of front and back a pair 40, it configures between cover half 20 and dynamic model 30, and in the direction (front and back orthogonal with mold opening and closing direction (up and down direction) To) on move.In addition, each 8 of multiple type chambers 21,31 or so of present embodiment, add up to 16.In addition, dynamic model 30 is along upper The mode of lower direction driving is constituted.
In addition, as shown in Figures 1 and 2, being centrally formed with and being supplied from not shown in the left and right directions and front-rear direction of cover half 20 Injection (mo(u)lding) machine injection molten metal injection sprue hole 22.
In addition, as shown in Figures 1 and 3, at the front-rear direction center of the upper surface of dynamic model 30, being formed with along left and right directions The cross gate slot 32 being connect with multiple type chambers 31 of dynamic model 30.In addition, the sprue hole 22 of cover half 20 is to be located at cross gate slot 32 The mode at left and right directions center configure.In addition, at the left and right directions center of cross gate slot 32, equipped with making to be injected into sprue hole 22 molten metal flowing rectificationization, top for roughly conical shape rectification part 33.
As shown in figure 3, sliding die 40 has the embedded type core for the pair of right and left retreated relative to multiple type chambers 21,31 The central slide core (center slide core) of (insert core) 41 and configuration between the embedded type core 41 of left and right 42.In addition, the embedded type core 41 of left and right and central slide core 42 are to be combined with the up and down action of dynamic model 30 and along the longitudinal direction The mode similarly driven is constituted.
In addition, being formed with type chamber 41a on the top of Zuo You embedded type core 41.In addition, on the top of central slide core 42 End, is formed with the recess portion 42a of the substantially U-shaped on the top for avoiding rectification part 33.
In addition, as depicted in figs. 3 and 5, in the upper surface of the left and right directions central portion of dynamic model 30, being formed with respectively to front and back Central slide core 42 the guide groove 34 of front and back a pair that guides of movement.Moreover, in the following table of central slide core 42 Face is formed with the ridge 42b chimeric with the guide groove 34.
Here, being illustrated to by the molding molding D of die casting equipment 10 of present embodiment.As shown in Figure 10, this at Type object D includes sprue SP, is formed by the sprue hole 22 of cover half 20;Central cross gate Rc passes through the cross of dynamic model 30 The formation of running channel slot 32, and extend along the longitudinal direction in the lower section of sprue SP;Side cross gate Rs passes through the cross gate of dynamic model 30 The formation of slot 32, and each extended in the lateral direction from the front-rear direction center of central cross gate Rc;Multiple molded product SD, with a left side Right side cross gate Rs is separately connected;Be pushed portion P, be respectively formed at left and right side cross gate Rs top end part, and by Aftermentioned knock pin (eject pin) 35 pushes.
In addition, being formed through the rank that the recess portion 42a of central slide core 42 is formed in the upper end of central cross gate Rc Terraced portion ST, as can be seen from figures 8 and 9, the upper surface of stepped part ST become in die sinking by the recess portion 42a of central slide core 42 The part blocked of lower edge.It should be noted that the so-called recess portion 42a by central slide core 42 is in the lower section of sprue SP Central cross gate Rc on form stepped part ST and refer to, the central configuration of slide core 42 is on the periphery of sprue SP.
Moreover, in the present embodiment, the central slide core 42 of front and back is in molding in cover half 20 and cross gate slot 32 Between and be positioned over the position of the top of cross gate slot 32 (referring to Fig. 6, Fig. 7).In addition, the central slide core 42 of front and back is being opened Positioned at the side cross gate Rs of the upper surface of the stepped part ST of the central cross gate Rc taken shape in cross gate slot 32 and left and right when mould Base portion upper surface (referring to Fig. 8, Fig. 9).Therefore, when die sinking, due to the upper surface of the stepped part ST of central cross gate Rc And the upper surface of base portion of the side cross gate Rs of left and right is blocked by the central slide core 42 of front and back, so center cross gate Rc with The side cross gate Rs of left and right is pulled near dynamic model 30.
In addition, as shown in Figures 1 and 3, four knock pins for making molding D demoulding after molding are equipped on dynamic model 30 35.This four knock pins 35 are constituted in a manner of it can move up and down to release molding D upwards, two knock pins 35 are arranged respectively on the position for pushing the rear and front end portion of central cross gate Rc, and remaining two knock pins 35 are arranged respectively at Push being pushed on the position of portion P for the side cross gate Rs of left and right.
As described above, the central slide core 42 of die casting equipment 10 according to the present embodiment, front and back is molding When between cover half 20 and cross gate slot 32 and the position that is positioned over above cross gate slot 32, in addition, be located in die sinking at Type is upper in the base portion of the upper surface of the stepped part ST of the central cross gate Rc in cross gate slot 32 and the side cross gate Rs of left and right Surface, therefore, when die sinking, cross gate Rc, Rs are blocked by the central slide core 42 of front and back, can draw cross gate Rc, Rs To near dynamic model.Therefore, the bending that cross gate Rc, Rs when die sinking can be prevented in simple structure, to prevent molded product The deformation of SD.
Then, legacy means, that is, die casting equipment 50 of the die casting equipment of present embodiment 10 is illustrated.In the die casting In device 50, as shown in figure 11, the central slide core 42 of front and back, but is not formed with fixation on the upper surface of dynamic model 30 Type core (fixed core) 51.In this case, as shown in figure 12, due to being injected into the molten metal and cross gate in sprue hole The stepped part R1 of R is collided and is become turbulent (2 arrows referring to Fig.1), so the quality of molded product SD can decline.In addition, due to Side 41s (the ginseng of the embedded type core 41 of the left and right of the stepped part R1 of the molten metal and formation cross gate R of the high temperature just injected According to Figure 13) collision, so side 41s is easy to happen melting loss.
However, being eliminated in the die casting equipment 10 of present embodiment due to being equipped with the central slide core 42 of front and back Above-mentioned stepped part R1, so the turbulent flow of molten metal can be prevented, to improve the quality of molded product SD.In addition, due to removing Above-mentioned stepped part R1 will not be such that the molten metal of high temperature and the side 41s of the embedded type core 41 of left and right collides, so can prevent The only melting loss of embedded type core 41.Further, for example, even if melting loss has occurred in central slide core 42, also only replacement and insertion Type core 41 compares the central slide core 42 that cost of manufacture is greatly reduced, therefore can substantially cut down the guarantor of die casting equipment 10 Form this.
In addition, in old-fashioned die casting equipment 50, as shown in figure 11, due to the left and right side of the fixed core 51 of dynamic model 30 51s and left and right embedded type core 41 side 41s sliding contact, so the left and right side 51s of fixed core 51 and left and right it is embedding The side 41s for entering type core 41 can be worn.However, in the die casting equipment 10 of present embodiment, due to eliminating fixed Core 51 and configured with central slide core 42, so the side of the embedded type core 41 of left and right will not be worn.In addition, due to a left side Right embedded type core 41 is moved together with central slide core 42, so mutual side will not be worn.Therefore, Neng Goufang The only abrasion of the embedded type core 41 of left and right and central slide core 42, to realize long lifetime.
Further, as modified embodiment of the present embodiment, as shown in figure 14, cross gate slot 32 can also be formed in cover half On 20.In this case, cross gate slot 32 is formed not on dynamic model 30.In addition, cross gate slot 32 can also be formed in cover half 20 In 30 the two of dynamic model.
In addition, not departing from the gist of the invention the present invention is not limited to content illustrated by above embodiment It can be suitably changed in range.
For example, being equipped with pair of sliding mould in the present embodiment, but not limited to this, sliding according to the shape of molded product Dynamic model is also possible to one.
In addition, molding in the present embodiment is metal molded product, but not limited to this, can also form conjunction At the molded product of resin.

Claims (3)

1. a kind of die casting equipment (10), has: the cover half (20) with multiple type chambers (21);It is dynamic with multiple type chambers (31) Mould (30);And it configures between the cover half (20) and the dynamic model (30) and on the direction orthogonal with mold opening and closing direction Mobile sliding die (40), the die casting equipment (10) be characterized in that,
The cross gate slot (32) connecting with the multiple type chamber (21,31) is formed on the dynamic model (30),
The sliding die (40) has: embedded type core (41), retreats relative to the multiple type chamber (21,31);It is sliding with center Ejector half core (42) between the cover half (20) and the cross gate slot (32) and is positioned over the cross gate in molding The position of slot (32),
The center slide core (42) is located at the cross gate (Rc, Rs) taken shape in the cross gate slot (32) in die sinking On.
2. die casting equipment (10) according to claim 1, which is characterized in that be formed with guidance institute on the dynamic model (30) The guide groove (34) of the movement of central slide core (42) is stated,
The ridge chimeric with the guide groove (34) (42b) is formed on the central slide core (42).
3. die casting equipment (10) according to claim 1 or 2, which is characterized in that be formed with confession on the cover half (20) The sprue hole (22) that the fusant injected from injection (mo(u)lding) machine injects,
There is the sprue formed by the sprue hole (22) by the die casting equipment (10) molding molding (D) (SP),
The center slide core (42) configures on the periphery of the sprue (SP).
CN201810002294.XA 2018-01-02 2018-01-02 Die casting device Active CN109986047B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810002294.XA CN109986047B (en) 2018-01-02 2018-01-02 Die casting device

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CN201810002294.XA CN109986047B (en) 2018-01-02 2018-01-02 Die casting device
TW107146711A TWI696507B (en) 2018-01-02 2018-12-24 Die casting device

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CN109986047B CN109986047B (en) 2021-05-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111585147A (en) * 2020-06-16 2020-08-25 河南和实科技有限公司 Composite metal friction disc and manufacturing method thereof and grounding device

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DE19936584A1 (en) * 1999-08-03 2001-02-08 Ewikon Heiskanalsysteme Gmbh & Electric heater for a hot runner channel of a hot runner injection molding tool has a press fit connection between a central heating element and an outer sleeve
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CN111585147A (en) * 2020-06-16 2020-08-25 河南和实科技有限公司 Composite metal friction disc and manufacturing method thereof and grounding device

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TW201929977A (en) 2019-08-01
TWI696507B (en) 2020-06-21
CN109986047B (en) 2021-05-04

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