CN209647530U

CN209647530U - Cast displacement type running gate system

Info

Publication number: CN209647530U
Application number: CN201920014494.7U
Authority: CN
Inventors: 施小建
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-05
Filing date: 2019-01-05
Publication date: 2019-11-19
Anticipated expiration: 2029-01-05

Abstract

The utility model discloses casting displacement type running gate systems, including pouring box, sand mold, the fixed one end for being located at the sand mold top surface of the pouring box, the bottom of the pouring box is equipped with fixed bracket, the support bracket fastened bottom surface is fixedly connected with the cope of the sand mold, the bottom end of the hose is inserted into the bottom of the casting type chamber, the hose is Thermostable flexible hose, and it can be swum on casting metal liquid level when being poured, the system simplifies pouring technology design, to simplify molding operation, a large amount of human cost and material cost are saved.

Description

Cast displacement type running gate system

Technical field

The utility model relates to running gate systems, are specifically related to casting displacement type running gate system.

Background technique

Existing system for casting and pouring includes sprue cup (or runner box), and sprue, cross gate (being equipped with filter screen) is interior to be poured Road.System for casting and pouring is fixed in molding sand, cannot be changed.The technological design of system for casting and pouring needs to integrate Consider that molten metal flowing is steady, there is filter residue, exhaust effect, the solidification sequence of molten metal requires bottom temp to be lower than top temperature Degree.In order to which the flowing for obtaining molten metal is steady, bottom pouring type pouring technique is generally used, solidification sequence bottom temp is caused to hold in this way Easily it is higher than head temperature, but this is contradicted with the molten metal solidification sequence of sequentially solidified superalloy is needed.In conclusion existing casting Running gate system is made to have the disadvantage in that

The flowing of molten metal is steadily contradicted with molten metal solidification sequence；Although in order to reconcile this contradiction can increase it is auxiliary Technological design is helped, such as increases chill, riser etc. adjusts molten metal solidification sequence, but complex process causes manufacturing cost to increase；No It can solve at all, it is difficult to obtain optimal casting quality.

Summary of the invention

In order to solve the above-mentioned technical problem, the utility model provides casting displacement type running gate system, system user Just, casting is simple, the flowing of molten metal is steadily consistent with molten metal solidification sequence.

The utility model solves its technical problem and adopts the following technical solutions to realize:

Displacement type running gate system, including pouring box, sand mold are cast, the pouring box is fixed to be located at the one of the sand mold top surface End, the bottom of the pouring box are fixed with fixed bracket, and the support bracket fastened bottom surface and the cope of the sand mold are fixed Connection；The pouring box includes casting cabinet, filtering wall, plug, rocking bar, and the filtering wall is located in the pouring box body, institute It states casting cabinet and the first, second plenum chamber is divided by the filtering wall, the plug is located in second plenum chamber, described Rocking bar is fixed to be located at second plenum chamber top surface, and the plug is hinged by connecting rod and the rocking bar, and the rocking bar controls institute State the movement of plug；The inner wall of the casting cabinet is successively arranged refractory material layer, fire brick layer from inside to outside, and described second is empty The bottom surface of chamber is equipped with vertical through hole, and the inner wall of the through-hole is equipped with ceramic tube, and the periphery of the ceramic tube is connected with hose, described Ceramic tube passes through fixed device mutually to be fixed with the hose, and the periphery of the hose is equipped with refractory material layer, the plug and institute It states ceramic tube to match, the other end of the hose is movably inserted into the sand mold；

The sand mold includes loam core, molding sand, and the loam core is located at the middle part of the sand mold, and the molding sand wraps up the mud Core, the molding sand and the loam core constitute casting type chamber, and the casting type chamber is vertically and horizontally arranged and communicates, the bottom end of the hose It is inserted into the bottom of the casting type chamber, the hose is Thermostable flexible hose, and can swim in casting metal liquid level when casting On.

Further, the fixed bracket is in frame structure.

Further, the fixed device is clip.

Further, the filtering wall can be partition wall, be provided at least one notch on the partition wall, the indentation, there is equipped with Filter screen.

Beneficial effect

The utility model casting displacement type running gate system has the advantage that 1, obtains molten metal smooth flow while obtaining Optimal molten metal sequentially solidifies, to obtain premium casting.2, pouring technology design is simplified, to simplify moulding behaviour Make, saves a large amount of human cost and material cost.3, the perfect unity of pouring technology and metallography solidification principle is obtained, And then it is easier to obtain premium casting.4, there is optimal curdled appearance, can reduce riser, simultaneously because not traditional casting system System occupies molten metal, and casting process yield greatly improves, which is suitable for large and medium-sized steel-casting, large and medium-sized cast copper The production of part, big-and-middle mold casting G. Iron Castings.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the structural schematic diagram of pouring box.

Specific embodiment

The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical It is novel, it is not intended to limit the scope of the utility model.

Displacement type running gate system, including pouring box 1, sand mold 2 are cast, the pouring box 1 is fixed to be located at 2 top surface of sand mold One end, the bottom of the pouring box 1 is fixed with fixed bracket 3, and the bottom surface of the fixed bracket 3 is upper with the sand mold 2 Sandbox is fixedly connected；The pouring box 1 includes being poured cabinet 11, filtering wall 12, plug 13, rocking bar 14, and described 12, filtering wall In in the casting cabinet 11, the casting cabinet 11 is divided by the filtering wall 12 for the first, second plenum chamber 15,16, institute It states plug 13 to be located in second plenum chamber 16, the fixed top surface for being located at second plenum chamber 16 of the rocking bar 14 is described Plug 13 is hinged by connecting rod 17 and the rocking bar 14, and the rocking bar 14 controls the movement of the plug 13；The casting cabinet 11 inner wall is successively arranged refractory material layer 18, fire brick layer 19 from inside to outside, and the bottom surface of second plenum chamber 16, which is equipped with, hangs down The inner wall of clear opening, the through-hole is equipped with ceramic tube 161, and the periphery of the ceramic tube 161 is connected with hose 162, the ceramic tube 161 are mutually fixed by one end of clip and the hose 162, and the periphery of described 162 one end of hose is equipped with refractory material layer, described Plug 13 is matched with the ceramic tube 162, and the other end of the hose 163 is movably inserted into the sand mold 2；

The sand mold 2 includes loam core 21, molding sand 22, and the loam core 21 is located at the middle part of the sand mold 2, and the molding sand 22 wraps The loam core is wrapped up in, casting type chamber is constituted between the molding sand and the loam core, the casting type chamber is vertically and horizontally arranged and communicates, institute The bottom end for stating hose is inserted into the bottom of the casting type chamber, and the hose is Thermostable flexible hose, and can swim in when casting On casting metal liquid level, the fixed bracket 3 is in frame-type, and the quantity of the fixed bracket 3 is 2, and the fixed bracket is in frame Frame structure, the filtering wall 12 are partition wall, and at least one notch is provided on the partition wall, and the indentation, there is equipped with filter screen；

Working principle

Pouring box must toast drying before being poured, and ceramic tube 161, which must be sealed, for plug 13 (by refractory material and pulls out Fill in bulb surrounding contact sealing), the molten metal in casting ladle is poured into a Room, by manual after molten metal rises to certain altitude Or automatic stopper casting.Molten metal is filtered by passing through filter screen 5 during two Room of inflow of a Room, ensure that the clean of molten metal, The stopper pouring after molten metal rises to certain altitude again ensures that the molten metal for flowing into Thermostable flexible hose 162 is clean, it is ensured that Clean molten metal flows into casting mold 12.With the inflow casting mold 12 of molten metal, molten metal liquid level constantly rises, due to Thermostable flexible hose 162 specific gravity are lighter than molten metal, and Thermostable flexible hose 162 rises under the action of buoyancy with liquid level, molten metal enter oral fluid it is continuous on It rises, and molten metal flow direction is flowed under buoyancy by minimum drag direction, that is, cutting along casting mold 12 naturally The flowing of line direction, avoids impact of the molten metal to casting mold, is conducive to the smooth flow of molten metal, form best casting condition. With the continuous lifting of molten metal position, the oral fluid that enters of molten metal constantly rises, and first enters the molten metal of casting mold 12 in this way in casting mold Under 12 cooling effect, temperature is reduced, and is formd the temperature gradient of molten metal from bottom to top, has thus been complied fully with crystallization Principle is learned in the sequentially frozen metal of setting temperature narrow metal liquid, and (traditional running gate system learns principle phase lance with sequentially frozen metal Shield), so as to cast out premium casting.

Above content is only the preferred embodiment of the utility model, is not intended to limit the embodiments of the present invention, Those of ordinary skill in the art's central scope according to the present utility model and spirit can very easily carry out corresponding accommodation Or modification, therefore the protection scope of the utility model should be subject to protection scope required by claims.

Claims

1. casting displacement type running gate system, including pouring box, sand mold, which is characterized in that the pouring box is fixed to be located at the sand One end of type top surface, the bottom of the pouring box are fixed with fixed bracket, the support bracket fastened bottom surface and the sand mold Cope is fixedly connected；The pouring box includes casting cabinet, filtering wall, plug, rocking bar, and the filtering wall is located at the casting In case, the casting cabinet is divided into the first, second plenum chamber by the filtering wall, and the plug is located at second plenum chamber Interior, the fixed top surface for being located at second plenum chamber of the rocking bar, the plug is hinged by connecting rod and the rocking bar, described to shake Bar controls the movement of the plug；The inner wall of the casting cabinet is successively arranged refractory material layer, fire brick layer, institute from inside to outside The bottom surface for stating the second plenum chamber is equipped with vertical through hole, and the inner wall of the through-hole is equipped with ceramic tube, and the periphery of the ceramic tube is connected with Hose, the ceramic tube passes through fixed device mutually to be fixed with the hose, and the periphery of the hose is equipped with refractory material layer, described Plug is matched with the ceramic tube, and the other end of the hose is movably inserted into the sand mold；

The bottom end of the hose is inserted into the bottom of the casting type chamber, and the hose is Thermostable flexible hose, and can when casting It swims on casting metal liquid level.

2. casting displacement type running gate system according to claim 1, which is characterized in that the fixed bracket is in frame knot Structure.

3. casting displacement type running gate system according to claim 1, which is characterized in that the fixed device is clip.

4. casting displacement type running gate system according to claim 1, which is characterized in that the filtering wall can be partition wall, institute It states and is provided at least one notch on partition wall, the indentation, there is equipped with filter screen.