CN103586421A

CN103586421A - Shooting plate capable of being efficiently sealed together with oil passage core box

Info

Publication number: CN103586421A
Application number: CN201310595009.7A
Authority: CN
Inventors: 谢许祥; 郑友文; 尹华元
Original assignee: SICHUAN XIANGYE MECHANICAL CASTING Co Ltd
Current assignee: SICHUAN XIANGYE MECHANICAL CASTING Co Ltd
Priority date: 2013-11-21
Filing date: 2013-11-21
Publication date: 2014-02-19

Abstract

The invention discloses a shooting plate capable of being efficiently sealed together with an oil passage core box. A plurality of sand shooting holes are formed in a plate body, closed ring-shaped settling tanks are arranged on the shooting plate, all the sand shooting holes are positioned in a region at which the ring-shaped settling tanks are located, ring-shaped sealing strips are mounted inside the ring-shaped settling tanks, the outer side surfaces of the ring-shaped sealing strips protrude out of the surface of the shooting plate, and the outer side surface of the ring-shaped sealing strips are in close contact with the end surface of the oil passage core box. According to the invention, the ring-shaped settling tanks are adopted for intensively surrounding the sand shooting holes, the ring-shaped sealing strips are used for integral sealing to the sand shooting holes (to for sealing after contacting the end surface of the oil passage core box), the processing to the ring-shaped settling tanks can be accomplished once, the processing is convenient, and the cost is low; one-time finished processing can ensure that inner bottom surfaces of the ring-shaped settling tanks are equal in height, after the mounting of the ring-shaped sealing strips, sealing is prevented from clearances and the effect is good; the positions of the ring-shaped sealing strips in the ring-shaped settling tanks are stable, the probabilities of dropping off and damage during the use are low, and the service life is long.

Description

Can with oil duct core box efficient sealed penetrate plate

Technical field

The present invention relates to a kind of and a kind of mfg. moulding die crankcase of automobile engine---oil duct core box is supporting penetrates plate, relate in particular to a kind of can with oil duct core box efficient sealed penetrate plate.

Background technology

When the crankcase of automobile engine is produced in resin sand casting, its cast model is all combined into a block mold by main core, water channel core, oil duct core, outside core and end face core etc. conventionally.Wherein, the coremaking of oil duct core is penetrated precoated sand by hot core machine and is entered the moulding of oil duct core box.In penetrating process processed, precoated sand is put into and is penetrated head from sand hopper, under pressure air effect, from penetrating the sand-spraying hole of plate, injects oil duct core box.Because precoated sand is to penetrate sand under pressure air effect, the mobility of its sand grains is very good, is easy to from penetrating gap between plate and the end face of oil duct core box to external leakage.The existing method that prevents that sand grains from leaking sand is, in each sand-spraying hole circumference outside of penetrating plate, opens a circular groove, loads onto silica gel sealing ring and seals.This method to a certain extent can anti-leak-stopping sand, but there are two problems: the one, when the silica gel sealing ring packing into is more, in penetrating process processed, penetrate between plate and oil duct core box and can cause leaking sand because penetrating the differ inconsistent gap that produces of height of the silica gel sealing ring that causes installation of sand mouth size, the oil duct core shape that affects working environment and ejaculation is imperfect; The 2nd, because silica gel sealing ring is less, in use easily come off, fragile, reduced production efficiency, increased again cost.

Summary of the invention

Object of the present invention with regard to be to provide in order to address the above problem a kind of can with oil duct core box efficient sealed penetrate plate.

The present invention is achieved through the following technical solutions above-mentioned purpose:

Of the present invention can with oil duct core box efficient sealed penetrate plate, its plate body is provided with a plurality of sand-spraying holes, describedly penetrate the ring-type deep gouge that plate is provided with sealing, all described sand-spraying holes are all positioned at described ring-type deep gouge region, in described ring-type deep gouge, annular seal bar is installed, described in the outer surface of described annular seal bar protrudes from, penetrate the surface of plate, the outer surface of described annular seal bar is for the end face close contact with described oil duct core box.Adopt ring-type deep gouge that a plurality of sand-spraying holes are concentrated and surrounded, utilize annular seal bar to carry out integral sealing (with forming sealing after the end contact of oil duct core box) to a plurality of sand-spraying holes, thereby the ring structure of the most amounts of tradition is changed into the annular seal bar structure of small number, the sealing effectiveness of having realized.

Particularly, described ring-type deep gouge is rectangle fillet deep gouge or oval deep gouge, specifically according to the arrangement architecture of a plurality of sand-spraying holes, determines.

According to practical application needs, described ring-type deep gouge and described annular seal bar are one; Or described ring-type deep gouge and described annular seal bar are a plurality of and corresponding one by one, a plurality of described sand-spraying holes lay respectively in a plurality of described ring-type deep gouges region.

Particularly, described oil duct core box comprises the left mould of core box and the right mould of core box, described a plurality of sand-spraying hole is aimed at respectively a plurality of spaces between the left mould of described core box and the right mould of described core box, outer surface while and one end end face of the left mould of described core box and one end end face close contact of the right mould of described core box of described annular seal bar.This structure of oil duct core box is to apply at present more structure.

Beneficial effect of the present invention is:

The present invention adopts ring-type deep gouge that a plurality of sand-spraying holes concentrate are surrounded, and utilizes annular seal bar to carry out integral sealing (with forming sealing after the end contact of oil duct core box) to a plurality of sand-spraying holes, and ring-type deep gouge once can machine, easy to process, cost is low; Process at one time and can guarantee that the inner bottom surface size of ring-type deep gouge is contour, its sealing gapless, effective after installation ring-type sealing strip; Annular seal bar is position stability in ring-type deep gouge, difficult drop-off and damage in use, long service life.

Accompanying drawing explanation

Fig. 1 is the stereogram when penetrating plate ring-type sealing strip not being installed of the present invention;

Fig. 2 is that the plate of penetrating of the present invention is installed the stereogram after ring-type sealing strip;

Fig. 3 is the plate cutaway view in when application of penetrating of the present invention;

Fig. 4 is the stereogram that tradition is penetrated plate.

The specific embodiment

Below in conjunction with accompanying drawing, the invention will be further described:

As depicted in figs. 1 and 2, of the present invention can with oil duct core box efficient sealed penetrate plate 1, its plate body is provided with the sand-spraying hole 3 of a plurality of " one " word arrangement, penetrate the ring-type deep gouge 2 that plate 1 is provided with a sealing, all sand-spraying holes 3 are all positioned at ring-type deep gouge 2 regions, annular seal bar 4 is installed in ring-type deep gouge 2, and the outer surface of annular seal bar 4 protrudes from the surface of penetrating plate 1, and the outer surface of annular seal bar 4 is for the end face close contact with oil duct core box.Ring-type deep gouge 2 is rectangle fillet deep gouge, can be also oval deep gouge.

As shown in Figure 3, described oil duct core box comprises the left mould 5 of core box, the right mould 6 of core box and core box cover half 7, and the left mould 5 of core box and the right mould 6 of core box are placed on core box cover half 7, between the left mould 5 of core box and the right mould 6 of core box, is provided with a plurality of spaces of aiming at respectively with a plurality of sand-spraying holes 3.During application, a plurality of sand-spraying holes 3 of penetrating plate 1 are aimed at respectively to a plurality of spaces between the left mould 5 of core box and the right mould 6 of core box, outer surface while and one end end face (the upper end end face in Fig. 3) of the left mould 5 of core box and one end end face (the upper end end face in Fig. 3) close contact of the right mould 6 of core box of annular seal bar 4.

In conjunction with Fig. 1 and Fig. 2, ring-type deep gouge 2 and annular seal bar 4 also can be for a plurality of and corresponding one by one, such as, ring-type deep gouge 2 and annular seal bar 4 are two, and a plurality of sand-spraying holes 3 lay respectively in two ring-type deep gouge 2 regions.The effect that this structure reaches is identical, just the quantity of ring-type deep gouge 2 and annular seal bar 4 is increased, and certainly, also can not being increased to tradition, to penetrate on plate the quantity of sealing ring so much.

As shown in Figure 4, tradition penetrates that on plate 10, also to have a plurality of these examples of sand-spraying hole 3(be 8), but there is no ring-type deep gouge 2, in the outside of sand-spraying hole 3, be provided with and penetrate sand mouth 9, each is penetrated sand mouth 9 and packs a silica gel sealing ring 8 into above, and it is identical with syndeton and Fig. 3 of oil duct core box.Due to processing or assembling, difference is penetrated the height of sand mouth 9 can not be in full accord, thereby cause: the sealing of part silica gel sealing ring 8 can exist gap and leak sand on the one hand; Too tight and the fragile or damage that part silica gel sealing ring 8 is pressed again on the other hand comes off.So tradition is penetrated plate and is not existed sealing effectiveness good and hold flimsy problem.The plate of penetrating of the present invention in Fig. 1-Fig. 3 solves these problems.

Claims

1. an energy and oil duct core box are efficient sealed penetrates plate, its plate body is provided with a plurality of sand-spraying holes, it is characterized in that: described in penetrate the ring-type deep gouge that plate is provided with sealing, all described sand-spraying holes are all positioned at described ring-type deep gouge region, in described ring-type deep gouge, annular seal bar is installed, described in the outer surface of described annular seal bar protrudes from, penetrate the surface of plate, the outer surface of described annular seal bar is for the end face close contact with described oil duct core box.

According to claim 1 can with oil duct core box efficient sealed penetrate plate, it is characterized in that: described ring-type deep gouge is rectangle fillet deep gouge or oval deep gouge.

According to claim 1 and 2 can with oil duct core box efficient sealed penetrate plate, it is characterized in that: described ring-type deep gouge and described annular seal bar are one.

According to claim 3 can with oil duct core box efficient sealed penetrate plate, it is characterized in that: described oil duct core box comprises the left mould of core box and the right mould of core box, described a plurality of sand-spraying hole is aimed at respectively a plurality of spaces between the left mould of described core box and the right mould of described core box, outer surface while and one end end face of the left mould of described core box and one end end face close contact of the right mould of described core box of described annular seal bar.

According to claim 1 and 2 can with oil duct core box efficient sealed penetrate plate, it is characterized in that: described ring-type deep gouge and described annular seal bar are a plurality of and corresponding one by one, and a plurality of described sand-spraying holes lay respectively in a plurality of described ring-type deep gouges region.

According to claim 5 can with oil duct core box efficient sealed penetrate plate, it is characterized in that: described oil duct core box comprises the left mould of core box and the right mould of core box, described sand-spraying hole is aimed at the space between the left mould of described core box and the right mould of described core box, outer surface while and one end end face of the left mould of described core box and one end end face close contact of the right mould of described core box of described annular seal bar.