CN102649153A

CN102649153A - Mould vacuum valve device

Info

Publication number: CN102649153A
Application number: CN2011100457719A
Authority: CN
Inventors: 何玉佩
Original assignee: EVERINN INTERNATIONAL CO LTD
Current assignee: EVERINN INTERNATIONAL CO LTD
Priority date: 2011-02-25
Filing date: 2011-02-25
Publication date: 2012-08-29
Anticipated expiration: 2031-02-25
Also published as: CN102649153B

Abstract

The invention relates to a mould vacuum valve device which comprises a group of first mould units, a group of second mould units and a group of slide block units, wherein each first mould unit is provided with a first mould body, and the first mould body is provided with a sliding surface; each second mould unit is provided with a second mould body, and the second mould body is provided with a forming mould surface with a concave-convex type tooth part; each slide block unit is provided with a slide block arranged between the first mould body and the second mould body in a sliding manner; and the slide block is provided with a convex tooth part mutually matched with the type tooth part. The mould vacuum valve device has the beneficial effect that when a mould is cast and formed, once the slide block is pushed by a casting material, a vacuum flow channel can be immediately closed, so that the optimal casting and forming effects are achieved.

Description

The mould vacuum valve device

Technical field

The present invention relates to a kind of mould vacuum valve, particularly relates to a kind of mould vacuum valve device with good molding effect.

Background technology

Referring to shown in Figure 1, vacuum valve 10 structures of general mould consist predominantly of a pedestal 11, sliding seat 12, linked block 13, one eject 14 and bases 15 of seat, be provided with one in the middle of pedestal 11 and the sliding seat 12 and be wavy buffer loop 16; Be concaved with a through hole 111 on the pedestal 11, its side edge is concaved with an exhaust outlet 112 that is connected with through hole 111, and sliding seat 12 is provided with an air flue 121 that communicates with buffer loop 16; Place, linked block 13 front sides is provided with a valve axle center 131; Valve axle center 131 is set in the through hole 111, and linked block 13 rear side places are provided with an interlock axle center 132, ejects seat 14 inboards and is provided with two groups of springs 141; Two groups of springs 141 can be done butted to linked block 13; When the casting material arrives buffer loop 16 by air flue 121, can make roof pressure to interlock axle center 132, wait to cast the elastic force that the material pressure accumulation overcomes spring 141; Will drive the valve axle center 131 of linked block 13, make the air of buffer loop 16 be expelled to exhaust outlet 112 via valve axle center 131.

Though above-mentioned vacuum valve 10 can reach the result of use of vacuum pressing and casting; Yet in moulding, still have its disappearance to exist, general vacuum valve 10 mainly is that valve axle center 131 and interlock axle center 132 are made the interlock shape through linked block 13, when the casting material gets into buffer loop 16 pushing and pressing interlock axle center 132; Must be after this locates pressure accumulation arrival certain pressure; Surpass spring 141 elastic force and just can drive valve axle center 131 and move, make buffer loop 16 form sealing, so buffer loop 16 is injected into complete closed from vacuum valve 10 and has the time difference slightly; This time difference is often caused the channelling in runner of casting material, causes the moulding quality of casting finished products can produce many small far defects.

Summary of the invention

The object of the invention is to provide a kind of mould vacuum valve device with good molding effect.

The present invention provides a kind of mould vacuum valve device; It includes one group of first die unit, one group of second die unit and one group of sliding shoe unit; Wherein: first die unit has one first mould body; Place, first mould body top is concaved with a sliding surface, and first mould body is provided with a running channel stream in a side edge, and another side edge is provided with a vacuum stream; Second die unit has one second mould body, and place, second mould body below is provided with a molding plane, and molding plane is provided with the type tooth portion that is concaveconvex shape more than, defines in the middle of molding plane and the sliding surface to be formed with an accommodation space; The sliding shoe unit has a sliding shoe that is slidingly installed in the accommodation space; This sliding shoe bottom is pasted and is against on the sliding surface and can moves along horizontal; The sliding shoe top is provided with the convex teeth portion that is concaveconvex shape more than; This convex teeth portion can match with the type tooth portion of second mould body, defines a moulding space in the middle of convex teeth portion and the type tooth portion, and two ends, moulding space link to each other with running channel stream and vacuum stream respectively.

Mould vacuum valve device of the present invention, this sliding shoe bottom is provided with more than one rolling member, and this rolling member and sliding surface roll butt and touch shape.

Mould vacuum valve device of the present invention, first mould body deeply are concaved with a stopper slot on sliding surface, this sliding shoe below stretch be provided with one with the stopper slot spacing protuberance of fit mutually.

Mould vacuum valve device of the present invention, the lower end axle of the spacing protuberance of sliding shoe is provided with a roller, and this roller and stopper slot inwall roll butt and touch shape.

Mould vacuum valve device of the present invention, the place, bottom surface of the spacing protuberance of sliding shoe is equipped with at least one adjustment screw, and this adjustment screw supplies an adjustment spiral shell spare to be screwed into, and makes adjustment spiral shell spare top be against the stopper slot inwall.

Mould vacuum valve device of the present invention, the spacing protuberance of the inner corresponding sliding shoe of first mould body position is provided with at least one elastic parts, and butted this sliding shoe of this elastic parts is along laterally moving.

Beneficial effect of the present invention is: be utilized in first mould body, the second mould body intermediate sleeve is provided with a sliding shoe, sliding shoe expected in casting can be passed at once when reaching and close the vacuum stream, reach the good advantage of molding effect whereby.

Description of drawings

Fig. 1 is the assembled sectional view of general vacuum valve;

Fig. 2 is the exploded perspective view of mould vacuum valve device one preferred embodiment of the present invention, explains that the present invention is installed in the situation in the mould;

Fig. 3 is the exploded perspective view of above-mentioned preferred embodiment, explains that the present invention includes one group of first die unit, one group of second die unit and one group of sliding shoe unit;

Fig. 4 is the exploded perspective view of above-mentioned preferred embodiment, explains by another visual angle sight and looks situation of the present invention;

Fig. 5 is the assembled sectional view of above-mentioned preferred embodiment, explains to be formed with a moulding space between second die unit and sliding shoe unit;

Fig. 6 is the action diagram of above-mentioned preferred embodiment, and the situation that the casting material begins to get into the moulding space is described;

Fig. 7 is the action diagram of above-mentioned preferred embodiment, and the situation that the casting material is cushioned in the moulding space is described.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.

Referring to Fig. 2, shown in Figure 3; Mould vacuum valve device of the present invention mainly is mounted on one group of mould 1, and this mould 1 includes a patrix 100 and a counterdie 200, and upper and lower mould 100,200 respectively is provided with a die cavity 101,201; In the preferred embodiment of the present invention; Consisting predominantly of one group of first die unit 20, one group of second die unit 30 and one group of sliding shoe unit 40, the first die unit 20 is installed in counterdie 200, the second die units 30 and is installed in patrix 100; After upper and lower mould 100,200 covered each other, first die unit 20 was just involutory each other with second die unit 30.Below, after again the composition member of above-mentioned each unit and space combining kenel being specified in.

Simultaneously referring to Fig. 4, shown in Figure 5; First die unit 20 has one first mould body 21 and two elastic parts 22; Place, first mould body, 21 tops is concaved with a sliding surface 211; First mould body 21 is provided with a running channel stream 212 that links to each other with mould 1 in a side edge, and another side edge is provided with vacuum stream 213, the first mould bodies 21 that link to each other with vacuum plant (figure does not show) and on sliding surface 211, more in depth is concaved with a slightly L-shaped stopper slot 214; First mould body, 21 inner transverse are provided with two shrinkage pools, 215, two shrinkage pools 215 and just supply two elastic parts 22 to be inserted in.

Second die unit 30 has one second mould body 31; Place, second mould body, 31 belows is provided with a molding plane 311; Molding plane 311 is provided with several type tooth portions 312 that is concaveconvex shape, and molding plane 311 is formed with an accommodation space I with sliding surface 211 middle defining.

Sliding shoe unit 40 includes a sliding shoe 41, several rolling members 42, roller 43 and two adjustment spiral shell spares 44, and this sliding shoe 41 is to be slidingly installed in the accommodation space I, and its bottom pastes that be against can be along laterally moving on the sliding surface 211; These sliding shoe 41 tops are provided with several convex teeth portions that is concaveconvex shape 411, and this convex teeth portion 411 just matches with the type tooth portion 312 of second mould body 31, define a moulding space II in the middle of convex teeth portion 411 and the type tooth portion 312; II two ends, moulding space link to each other with running channel stream 212 and vacuum stream 213 respectively; These sliding shoe 41 bottoms respectively are concaved with a circular slotted eye 412 of making permeable type at the dual-side place, this circle slotted eye 412 supplies most rolling members 42 to be inserted in, and whole sliding shoe 41 is done to roll with sliding surface 211 through rolling member 42 and contacted shape; In the present embodiment; Rolling member 42 is to adopt steel ball, and the dealer also can adopt the rolling member of roller or other form certainly, and these sliding shoe 41 belows are stretched and are provided with a slightly L-shaped spacing protuberance 413; The stopper slot 214 mutual fits of this spacing protuberance 413 and first mould body 21; 43 on this roller is located at the lower end middle of spacing protuberance 413, can roll butt with the internal face of stopper slot 214 and touch shape, and it is butted that the edge surface of spacing protuberance 413 receives elastic parts 22; Make whole sliding shoe 41 have the spring-go power that moves towards running channel stream 212 directions; The place, bottom surface of spacing protuberance 413 is equipped with two adjustment screws 414, and each adjustment screw 414 can supply to adjust spiral shell spare 44 and be screwed into, and the user can change fine setting to adjustment spiral shell spare 44 spiral shells; Make top, adjustment spiral shell spare 44 lower ends support stopper slot 214 inwalls, so as to the size of adjustment sliding shoe 41 moulding space II.

More than be the general introduction of each member shape of mould vacuum valve device of the present invention, then, the effect statement that again action of the present invention and expection can be reached as after.

Again referring to shown in Figure 2; When the present invention begins that mould carried out casting manipulations; The casting material can arrive in the running channel stream 212 of first mould body 21, referring to shown in Figure 6, at this moment via mould 1 die cavity 101; Sliding shoe 41 is pushed as yet, and the casting material can be begun to get in the II of moulding space by running channel stream 212.

Referring to shown in Figure 7, then, when in a single day the casting material gets into the convex teeth portion 411 do pushings of moulding space II to sliding shoe 41 after; Sliding shoe 41 can move towards vacuum stream 213 directions delicately, and the convex teeth portion 411 of sliding shoe 41 can closely be fitted in a side of type tooth portion 312, and the casting material more pushes convex teeth portion 411; Convex teeth portion 411 is just tightr with the applying degree of type tooth portion 312; So can in moment, close vacuum stream 213, the casting material is the convex teeth portion 411 through just rising and falling together whenever, and charging rate will reduce by half; Through behind several convex teeth portion 411 buffer decelerations, the casting material can be condensed really in the II of moulding space.

In sum; Mould vacuum valve device of the present invention mainly is in order to solve the moulding problem of general vacuum valve 10; Its technological means that adopts is to be provided with a sliding shoe 41 in the middle of being utilized in first mould body 21 and second mould body 31, forms most the convex teeth portions 411 that are concaveconvex shape on this sliding shoe 41, when making the casting material touch convex teeth portion 411; Can drive whole sliding shoe 41 at once in moment moves; 213 formation are closed to the vacuum stream, and the convex teeth portion 411 of sliding shoe 41 can be close to the type tooth portion 312 of second mould body 31 and form closure, can positively make buffer deceleration to the casting material; So casting expects positively in the II of moulding space, to condense moulding, makes casting finished products of the present invention have splendid casting property.

Claims

1. mould vacuum valve device is characterized in that:

One group of first die unit has one first mould body, and place, first mould body top is concaved with a sliding surface, and first mould body is provided with a running channel stream in a side edge, and another side edge is provided with a vacuum stream;

One group of second die unit has one second mould body, and place, second mould body below is provided with a molding plane, and molding plane is provided with the type tooth portion that is concaveconvex shape more than, is formed with an accommodation space in the middle of molding plane and the sliding surface; And

One group of sliding shoe unit; Has a sliding shoe that is slidingly installed in the accommodation space; This sliding shoe bottom is pasted and is against on the sliding surface and can moves along horizontal, and the sliding shoe top is provided with the convex teeth portion that is concaveconvex shape more than, and this convex teeth portion matches with the type tooth portion of second mould body; In the middle of convex teeth portion and the type tooth portion moulding space is arranged, two ends, moulding space link to each other with running channel stream and vacuum stream respectively.

2. mould vacuum valve device as claimed in claim 1 is characterized in that: this sliding shoe bottom is provided with more than one rolling member, and this rolling member and sliding surface roll butt and touch shape.

3. mould vacuum valve device as claimed in claim 1 is characterized in that: first mould body deeply is concaved with a stopper slot on sliding surface, this sliding shoe below stretch be provided with one with the stopper slot spacing protuberance of fit mutually.

4. mould vacuum valve device as claimed in claim 3 is characterized in that: the lower end axle of the spacing protuberance of sliding shoe is provided with a roller, and this roller and stopper slot inwall roll butt and touch shape.

5. mould vacuum valve device as claimed in claim 3 is characterized in that: the place, bottom surface of the spacing protuberance of sliding shoe is equipped with at least one adjustment screw, and this adjustment screw supplies an adjustment spiral shell spare to be screwed into, and makes adjustment spiral shell spare top be against the stopper slot inwall.

6. mould vacuum valve device as claimed in claim 3 is characterized in that: the spacing protuberance of the inner corresponding sliding shoe of first mould body position is provided with at least one elastic parts, and butted this sliding shoe of this elastic parts is along laterally moving.