CN215315525U

CN215315525U - Piston blank forming die with slag removal function

Info

Publication number: CN215315525U
Application number: CN202120289322.8U
Authority: CN
Inventors: 吴锦中
Original assignee: FUZHOU TEVICK AUTOMOBILE FITTING CO LTD
Current assignee: FUZHOU TEVICK AUTOMOBILE FITTING CO LTD
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-12-28
Anticipated expiration: 2031-02-02

Abstract

The utility model relates to a piston blank forming die with a deslagging function, which comprises a die holder, wherein a left female die and a right female die are arranged on the upper side of the die holder, a lower male die extending into a cavity formed by the left female die and the right female die is arranged on the die holder, a male die insert assembly matched with the cavity to form a die cavity is arranged in the cavity formed by the left female die and the right female die, forwardly extending pouring parts are respectively arranged on the front sides of the left female die and the right female die, a pouring gate communicated with the die cavity is arranged on a joint surface formed by the two pouring parts, and a filter screen is arranged in the pouring gate. The mold is compact in structure, and is convenient for filtering molten aluminum and removing impurities when a piston blank is cast and molded.

Description

Piston blank forming die with slag removal function

Technical Field

The utility model relates to a piston blank forming die with a deslagging function.

Background

The piston is a reciprocating element in the cylinder body of the automobile engine. The existing piston is generally cast by aluminum liquid, and in the casting process, because the aluminum liquid contains some impurities or large particles which are not completely dissolved, if the impurities or the large particles enter the piston blank, the quality of the piston blank is influenced, so that unqualified parts are caused or the service life of the piston is influenced, and the like. Therefore, a piston blank forming die with a deslagging function is needed.

Disclosure of Invention

The utility model aims to provide a piston blank forming die with a deslagging function, which is compact in structure and convenient for filtering molten aluminum and removing impurities when a piston blank is cast and formed.

The technical scheme of the utility model is as follows: the utility model provides a piston blank forming die with slagging-off function, includes the die holder, the die holder upside is provided with left die and right die, is provided with the lower convex die that stretches into the die cavity that left die and right die formed on the die holder, and left die and right die form to be provided with in the die cavity and cooperate the terrace die insert subassembly that forms the die cavity with the cavity, are located left die and right die front side and are provided with the pouring part that extends forward respectively, are provided with the water of letting in the die cavity on the die joint of two pouring part laminatings, it has put the filter screen to water to embed.

Further, the pouring part below of left side die transversely is provided with the backup pad that extends to die one side right, the lower extreme and the backup pad looks butt of filter screen press from both sides and locate between the pouring part die surface of left die and right die.

Furthermore, an upwards convex anti-falling hook part is arranged at the end part of the supporting plate, which is positioned at the lower side of the right female die.

Furthermore, the pouring gate comprises a pouring gate channel concave part arranged on the upper part of the parting surface of the left female die pouring part, a pouring gate channel connecting part which is matched with the pouring gate channel concave part and extends downwards is arranged on the upper part of the parting surface of the right female die pouring part, a main runner concave part communicated with the lower part of the pouring gate channel connecting part is arranged on the lower part of the parting surface of the left female die pouring part, the other end of the main runner concave part is communicated with the cavity, and an exhaust passage is vertically arranged between the parting surfaces of the left female die and the right female die.

Further, the filter screen is arranged between the sprue connecting portion and the main runner recess.

Furthermore, the male die insert component comprises a left male die insert and a right male die insert, the inner sides of the left male die insert and the right male die insert are respectively provided with an insert, and a movable insert is arranged between the two inserts.

Furthermore, the movable insert comprises a middle insert block, the front side and the rear side of the middle insert block are respectively provided with an inward inclined plane, the inclined planes of the front side and the rear side of the middle insert block are respectively fixed with a raised head pin and provided with a sliding insert which is attached to the inclined planes, and the sliding insert is obliquely provided with a guide chute which is in sliding fit with the raised head pin.

Further, side loose cores are respectively and transversely arranged on the left female die and the right female die; the lower convex die penetrates through the die holder and is in sliding fit with the die holder, and the die holder is provided with a vertical oil cylinder for driving the lower convex die to lift.

Compared with the prior art, the utility model has the following advantages: the mold is compact in structure, and is convenient for filtering molten aluminum and removing impurities when a piston blank is cast and molded, so that the impurity content in the piston blank is reduced, and the quality of the piston is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1 of the present invention;

FIG. 3 is a cross-sectional view B-B of FIG. 2 of the present invention;

in the figure: 10-die holder 20-left die 30-right die 31-die cavity 32-side core pulling 40-lower punch 41-vertical oil cylinder 51-left punch insert 52-right punch insert 53-insert 54-movable insert 541-middle insert 542-raised head pin 543-sliding insert 544 guide chute 55-connecting rod 60-casting part 61-filter screen 62-supporting plate 621-anti-falling hook part 631-sprue channel recess 632-sprue channel connecting part 633-main sprue channel recess 634-exhaust channel.

Detailed Description

In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.

Refer to fig. 1 to 3

The utility model provides a piston blank forming die with slagging-off function, includes die holder 10, the die holder upside is provided with left die 20 and right die 30, is provided with the lower punch 40 that stretches into in the cavity that left die and right die formed on the die holder, and left die and right die form to be provided with in the cavity and cooperate the terrace die insert subassembly that forms die cavity 31 with the cavity, lie in that left die and right die front side are provided with the pouring part 60 that extends forward respectively, are provided with the water of watering that lets in the die cavity on the die joint that two pouring parts laminated, water and embed and put filter screen 61 to impurity in with aluminium liquid is rejected through the filter screen.

In this embodiment, for convenient filter screen material loading location, the pouring part below of left side die transversely is provided with the backup pad 62 that extends to die one side right, the lower extreme and the backup pad looks butt of filter screen are located between the pouring part die surface of left die and right die to realize the clamp of filter screen after the compound die through left die and right die.

In this embodiment, in order to prevent the net from falling off, an anti-falling hook 621 protruding upward is disposed at an end of the support plate located at the lower side of the right female die.

In this embodiment, the runner includes the sprue recess 631 that sets up on the die joint upper portion of left die casting portion, the die joint upper portion of right die casting portion is provided with the sprue connecting portion 632 that matches with the sprue recess and extend downwards, the die joint lower part of left die casting portion is provided with sprue recess 633 that is linked together with the lower part of sprue connecting portion, the other end and the die cavity of sprue recess are linked together, still vertically be provided with exhaust passage 634 between the casting portion die joint of left die and right die.

In this embodiment, the filter screen is disposed between the sprue connecting portion and the main runner concave portion, so that the aluminum liquid enters the sprue connecting portion through the sprue concave portion, and enters the main runner concave portion after being filtered by the filter screen.

In this embodiment, in order to form a cavity in a matched manner, the punch insert assembly includes a left punch insert 51 and a right punch insert 52, inserts 53 are respectively arranged on the inner sides of the left punch insert and the right punch insert, and a movable insert 54 is arranged between the two inserts. In order to conveniently take the inserts, the upper parts of the left convex die insert, the right convex die insert and the insert are respectively fixed with a connecting rod 55.

In this embodiment, for better tight fit formation die cavity, movable insert includes that the front and back side is the middle part abaculus 541 on the inclined plane of leanin respectively, be fixed with plush pin 542 respectively and be provided with the slip insert 543 of laminating mutually with the inclined plane on the inclined plane of middle part abaculus front and back side, the slant of slip insert is provided with the direction spout 544 with plush pin sliding fit to movable insert when putting into the cavity, the slip insert can get into earlier, is carrying the slip insert through the middle part abaculus and is inlaying tightly.

In this embodiment, the left female die and the right female die are further provided with side loose cores 32 transversely; the lower convex die penetrates through the die holder and is in sliding fit with the die holder, and the die holder is provided with a vertical oil cylinder 41 for driving the lower convex die to lift.

When the die is used, the filter screen is placed on the supporting plate, the left male die insert, the right male die insert and the insert are placed in the cavity, then die assembly is carried out, and the movable insert is enabled to move downwards to be matched with each part to form a die cavity. And finally pouring aluminum liquid into the cavity through the concave part of the sprue channel, wherein the aluminum liquid is filtered by the filter screen when passing through the filter screen, and the filter screen is adhered to the pouring channel waste material after molding and is demoulded from the mold.

The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.

Claims

1. The utility model provides a piston blank forming die with slagging-off function, includes the die holder, its characterized in that, the die holder upside is provided with left die and right die, is provided with the lower convex mold that stretches into in the cavity that left die and right die formed on the die holder, and left die and right die form to be provided with in the cavity and cooperate the terrace die insert subassembly that forms the die cavity with the cavity, lie in that left die and right die front side are provided with the pouring part that extends forward respectively, are provided with the runner that lets in the die cavity on the die joint of two pouring parts laminating, it has put the filter screen to runner the built-in.

2. The piston blank forming die with the deslagging function of claim 1, wherein a supporting plate extending to one side of the right female die is transversely arranged below the pouring part of the left female die, and the lower end of the filter screen is abutted against the supporting plate and clamped between the parting surfaces of the pouring parts of the left female die and the right female die.

3. The piston blank forming die with the deslagging function of claim 2, wherein the end part of the supporting plate, which is positioned at the lower side of the right female die, is provided with an upwards-convex anti-disengaging hook part.

4. The piston blank forming die with the slag removal function according to claim 1, 2 or 3, wherein the runner comprises a runner concave part arranged on the upper part of the parting surface of the left female die casting part, the upper part of the parting surface of the right female die casting part is provided with a runner connecting part which is matched with the runner concave part and extends downwards, the lower part of the parting surface of the left female die casting part is provided with a main runner concave part communicated with the lower part of the runner connecting part, the other end of the main runner concave part is communicated with the cavity, and an exhaust passage is vertically arranged between the parting surfaces of the left female die and the right female die.

5. The piston blank forming die with the deslagging function of claim 4, wherein the filter screen is disposed between the sprue channel connection portion and the sprue channel recess.

6. The piston blank forming die with the deslagging function of claim 1, wherein the punch insert assembly comprises a left punch insert and a right punch insert, inserts are respectively arranged on the inner sides of the left punch insert and the right punch insert, and a movable insert is arranged between the two inserts.

7. The mold for forming a piston blank with a deslagging function of claim 6, wherein the movable insert comprises a middle insert block, front and rear sides of which are inclined planes inclined inwards, the inclined planes of the front and rear sides of the middle insert block are respectively fixed with a raised head pin and provided with a sliding insert attached to the inclined planes, and the sliding insert is obliquely provided with a guide chute in sliding fit with the raised head pin.

8. The piston blank forming die with the slag removal function according to claim 1, wherein side core-pulling bodies are respectively and transversely arranged on the left female die and the right female die; the lower convex die penetrates through the die holder and is in sliding fit with the die holder, and the die holder is provided with a vertical oil cylinder for driving the lower convex die to lift.