CN210996452U

CN210996452U - Quantitative pouring device for gravity casting

Info

Publication number: CN210996452U
Application number: CN201921445564.0U
Authority: CN
Inventors: 卢宝胜
Original assignee: FAW Group Corp; Faw Foundry Co Ltd
Current assignee: FAW Group Corp; Faw Foundry Co Ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-07-14
Anticipated expiration: 2029-09-02

Abstract

The utility model relates to a quantitative pouring device for gravity casting, including runner basin and plunger, the border department fixed connection of runner basin to the baffle that extends of runner basin center department, the runner has been seted up to the pelvic floor portion of runner basin, the plunger lower extreme stretch into the part cover of runner and put the sealing strip, the entry of runner and casting mould gating system adjust well. The utility model discloses realize that the molten metal pouring velocity of flow is steady, controllable, greatly reduced the roll up gas of molten metal, the pouring technology of oxidation cast is stable, has reduced the mix with and the gas pocket defect of foundry goods.

Description

Quantitative pouring device for gravity casting

Technical Field

The utility model belongs to gravity casting field, concretely relates to a quantitative pouring device for gravity casting.

Background

The casting is a technological process in which metal is smelted into liquid meeting certain requirements, and the liquid is poured into casting mould, and after cooling, solidification and cleaning treatment, the cast metal with predefined shape, size and performance is obtained.

According to different casting mould forming methods, the castings can be divided into common sand casting, metal casting, die casting, centrifugal casting, investment casting, ceramic casting, electroslag remelting casting, bimetallic casting and the like. Among them, the ordinary sand cast metal is used most, and it accounts for about 80% of the total cast yield. The pouring of the casting is a key link of casting production. Particularly for non-ferrous alloy castings, the pouring process is more critical. The traditional pouring mode can not realize the quantitative pouring of the molten metal. The unstable process control in the pouring process can cause the problems of gas entrainment, flow cutoff, splashing, oxidation and the like of molten metal in the pouring process, and the defects of air holes, insufficient pouring, slag inclusion and the like of castings can be generated. For single-piece and small-batch production of castings, manual pouring is generally adopted, and the problem of pouring process control is more prominent.

Disclosure of Invention

The utility model aims at providing a quantitative pouring device for gravity casting has economy, reliable advantage, realizes stable pouring process, and then realizes the stable production that cast metal.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a quantitative pouring device for gravity casting, includes runner basin 1 and plunger 4, the border department fixed connection of runner basin 1 to the baffle 2 that extends to runner basin 1 center department, runner 6 has been seted up to the pelvic floor portion of runner basin 1, the plunger lower extreme stretch into runner 6 the part cover and have been put sealing strip 3, runner 6 align with casting mould gating system's entry.

As a more excellent technical solution of the utility model: the sprue basin 1 is characterized in that a casting outer frame is adopted, and resin sand is coated inside the casting outer frame.

As a more excellent technical solution of the utility model: the sprue basin 1 is made of resin sand.

As a more excellent technical solution of the utility model: the plunger 4 is made of ceramic or metal.

Has the advantages that:

1. according to the quantitative requirement of molten metal, sprue basins of different sizes are manufactured, and resin sand is adopted in the sprue basins. If the quantity of the casting is large, the casting can also be made of refractory materials, so that the casting can be repeatedly used.

2. The plunger is made of ceramic or metal, can be repeatedly used, is manually or mechanically pulled out, and is simple and reliable to operate.

3. The baffle can prevent the overflow of molten metal in the molten metal injection runner basin in-process, guarantees that the molten metal pours into fast.

4. For cast heavy cast metal piece, can regard it as pouring basin to use, guarantee that in the pouring process, the metal liquid is in full filling state in the pouring basin, reduce the roll up gas and the inclusion sediment in the pouring process.

To sum up, the utility model provides a quantitative pouring device for gravity casting range of application is wide, can use on gravity casting's multiple casting mode, for example sand casting, metal mold casting, resin sand casting etc.. Particularly, the casting method has great technical advantages for casting the non-ferrous alloy with high requirement on the casting process.

Drawings

FIG. 1 is a schematic structural view of a quantitative pouring device for gravity casting according to the present invention;

fig. 2 is a plan view of a pouring basin of the quantitative pouring device for gravity casting according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning. According to the present invention, the following description will be made in detail with reference to the accompanying drawings.

As shown in fig. 1, the utility model provides a quantitative pouring device for gravity casting, including runner basin 1 and plunger 4, the border department fixed connection of runner basin 1 to the baffle 2 that extends of runner basin 1 center department, runner 6 has been seted up to the pelvic floor portion of runner basin 1, the plunger lower extreme partly cover that stretches into runner 6 put sealing strip 3, runner 6 adjust well with casting mould gating system's entry. The sprue basin 1 is characterized in that a casting outer frame is adopted, and resin sand is coated inside the casting outer frame. The sprue basin 1 is made of resin sand. The plunger 4 is made of ceramic or metal.

The utility model discloses a use as follows:

first, the pouring basin 1 is placed on the mould, the pouring opening 6 is aligned with the pouring system of the mould, and the mould and the pouring basin 1 are sealed by fire clay or refractory material (asbestos). The gate 6 in the gate pot 1 is then blocked with a plunger 4. Then the molten metal in the casting ladle 5 is rapidly poured into the pouring basin 1 according to the weight required by casting, and the baffle 2 can prevent the molten metal from overflowing. And standing the molten metal for a period of time to enable impurities in the molten metal to float upwards. And (4) pulling out the plunger 4 to realize bottom pouring. Realize that the molten metal pouring velocity of flow is steady, controllable, the utility model discloses greatly reduced the book gas, the oxidation of molten metal, the pouring technology of foundry goods is stable, has reduced mixing with and the gas pocket defect of foundry goods, and the range of application is wide, can use on gravity cast multiple casting mode, has very big technical advantage.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A quantitative pouring device for gravity casting which characterized in that: including runner basin (1) and plunger (4), the border department fixed connection of runner basin (1) baffle (2) that extend to runner basin (1) center department, runner (6) have been seted up to the pelvic floor portion of runner basin (1), the plunger lower extreme partly cover that stretches into runner (6) put sealing strip (3), runner (6) align with the entry of casting mould gating system.

2. A dosing device for gravity casting according to claim 1, wherein: the pouring basin (1) is cast with cast metal and is internally covered with resin sand.

3. A dosing device for gravity casting according to claim 1, wherein: the sprue basin (1) is made of resin sand.

4. A dosing device for gravity casting according to claim 1, wherein: the plunger (4) is made of ceramic or metal.