CN210937009U

CN210937009U - Concave type sprue gate seat for preventing residues on bottom surface of male die

Info

Publication number: CN210937009U
Application number: CN201922057621.4U
Authority: CN
Inventors: 杨泽民
Original assignee: Nantong Rainbow Hills Cast Iron Co ltd
Current assignee: Nantong Rainbow Hills Cast Iron Co ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-07-07
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses a concave type sprue seat for preventing residues on the bottom surface of a male die, which comprises a connecting rod, a gasket and a concave type sprue, wherein the connecting rod is vertically arranged at the top end of the gasket; the connecting rod is connected with the gasket in an adhesive way; the gasket is vertically arranged at the top end of the concave gate; the gasket is connected with the concave gate in an adhering way; the concave gate is a cuboid; the middle part of the concave gate is provided with a cavity matched with the reinforcing ribs on the bottom surface of the lost foam model; the cavity opens downwardly. The utility model discloses an annotate the mode on, not only the model gasification is effectual, has reduced the appearance of terrace die bottom surface residue, has avoided appearing the shrinkage porosity defect moreover, and the residue come-up is effectual, has reduced the foundry goods disability rate simultaneously, has extensive suitability.

Description

Concave type sprue gate seat for preventing residues on bottom surface of male die

Technical Field

The utility model relates to a concave type pouring basin especially relates to a concave type pouring basin of prevention terrace die bottom surface residue, belongs to lost foam casting technical field.

Background

In the lost foam casting process, as the structure of the lost foam is complex and changeable, the installation of a sprue is limited by the size of a model at the installation position in the actual production process. Therefore, each foundry can install the gate on the premise that the structural dimension does not influence the installation of the gate. And a side pouring and bottom pouring mode is adopted in the pouring process of the male die. These casting methods cause bottom surface residue to occur to various degrees due to poor gas emission caused by mold melting residue and mold vaporization during production, or shrinkage porosity defect due to poor gas emission. In the pouring process of bottom pouring and side pouring, because the heat of the metal solution is consumed by the model melting and the heat of the metal solution on the melting surface can not be supplemented, the model melting and gasification are poor, the residue can not float upwards, and the phenomena of shrinkage cavity or inclusion are generated, so that the casting is scrapped.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a concave type sprue gate seat for preventing residues on the bottom surface of a male die.

In order to solve the technical problem, the utility model discloses a technical scheme is: a concave sprue seat for preventing residues on the bottom surface of a male die comprises a connecting rod, a gasket and a concave sprue, wherein the connecting rod is vertically arranged at the top end of the gasket; the connecting rod is connected with the gasket in an adhesive way; the gasket is vertically arranged at the top end of the concave gate; the gasket is connected with the concave gate in an adhering way;

the concave gate is a cuboid; the middle part of the concave gate is provided with a cavity matched with the reinforcing ribs on the bottom surface of the lost foam model; the cavity opens downwardly.

The connecting rod is in a solid cylinder shape; the connecting rod is connected with the gasket through glue; and the gap between the connecting rod and the gasket is filled with putty.

The gasket is a cylinder; the gasket is connected with the concave gate through glue; and putty is filled in a gap between the gasket and the concave gate.

The bottom of the concave gate is vertically sleeved on the reinforcing rib on the bottom surface of the lost foam model; the concave pouring gate is connected with the bottom surface reinforcing rib of the lost foam model in an adhering mode through glue; and putty is filled in a gap between the concave pouring gate and the reinforcing ribs on the bottom surface of the lost foam model.

The upper end of the connecting rod is sleeved with a pouring channel.

The utility model discloses the pouring mode of annotating on the pouring process of terrace die adoption, not only the model gasification is effectual, has reduced the appearance of terrace die bottom surface residue, has avoided appearing the shrinkage porosity defect moreover, and the residue come-up is effectual, has reduced the foundry goods disability rate simultaneously, has extensive suitability.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic top view of the structure of fig. 1.

Fig. 3 is a schematic view of the usage state of fig. 1.

In the figure: 1. a connecting rod; 2. a gasket; 3. a concave gate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The concave sprue seat for preventing the residues on the bottom surface of the male die as shown in fig. 1-3 comprises a connecting rod 1, a gasket 2 and a concave sprue 3, wherein the connecting rod 1, the gasket 2 and the concave sprue 3 are all made of foam, and the connecting rod 1 is vertically arranged at the top end of the gasket 2; the connecting rod 1 is connected with the gasket 2 in an adhesive way; the gasket 2 is vertically arranged at the top end of the concave sprue 3; the gasket 2 is connected with the concave gate 3 in an adhesive way;

the concave gate 3 is a cuboid; the middle part of the concave gate 3 is provided with a cavity matched with the reinforcing ribs on the bottom surface of the lost foam model; the cavity opens downwardly. The concave gate 3 can break through the limitation of the original gate mounting position, and prevent the bottom surface of the casting from generating the defects of residues, impurities and the like. Through setting up concave type runner 3, enlarge former runner position, change into from the top down with the metal flow direction and pour into for the gas that the foam dissolved production discharged smoothly in the model, and the slag discharge way is floated smoothly to the residue, has not only reduced terrace die bottom surface residue problem, has reduced the probability of terrace die bottom surface defect moreover, has improved the product quality of foundry goods.

The connecting rod 1 is in a solid cylinder shape; the connecting rod 1 plays a role in fixing and positioning. The connecting rod 1 is connected with the gasket 2 through glue; the gap between the connecting rod 1 and the gasket 2 is filled with putty. The connecting rod 1 is connected with the gasket 2 by glue and is sewn by putty.

The gasket 2 is a cylinder; the gasket 2 is connected with the concave gate 3 through glue; the gap between the gasket 2 and the concave gate 3 is filled with putty. The gasket 2 and the cavity gate 3 are joined with glue and the gap created by their joining surfaces is treated with putty.

The bottom of the concave gate 3 is vertically sleeved on the reinforcing rib on the bottom surface of the lost foam model; the concave pouring gate 3 is connected with the bottom surface reinforcing rib of the lost foam model in an adhering mode through glue; and putty is filled in a gap between the concave pouring gate 3 and the reinforcing ribs on the bottom surface of the lost foam model. The concave gate 3 and the bottom reinforcing rib of the lost foam model are connected by glue, and gaps generated by the concave gate and the bottom reinforcing rib of the lost foam model are filled by putty. The concave surface of the concave sprue 3 is connected with a reinforcing rib on the bottom surface of the lost foam model.

The upper end of the connecting rod 1 is sleeved with a pouring channel. The pouring channel is a hollow tube, and the pouring port is connected with the cylindrical connecting rod 1 through the pouring channel. The pouring channel is sleeved outside the connecting rod 1, and the design adopts an upward pouring mode in the pouring process of the male die, namely, the metal solution flows into the die from top to bottom when flowing into the die from the pouring channel. The metal solution is changed from the original static pressure pouring into gravity pouring in the pouring process. The pouring mode of pouring is adopted when the model is placed upside down during pouring, so that the bottom surface structure of the model can be kept at a higher pouring temperature in the pouring process, residues can float upwards during model melting, the occurrence probability of the residues on the bottom surface of the casting is reduced, and the bottom surface quality of the casting is improved.

The utility model discloses a working process does: the connecting rod 1, the gasket 2 and the concave gate 3 are sequentially connected through glue, the concave gate 3 is connected with a reinforcing rib on the bottom surface of the lost foam model through the glue, the pouring channel is sleeved outside the connecting rod 1, and the male mold can be poured through an upper pouring mode.

The utility model discloses a prevention terrace die bottom surface residue defect's appearance, through changing pouring gate position and pouring direction, at first change the pouring gate into concave type runner 3, the runner mounted position has been enlarged, secondly change the pouring mode into the mode of annotating, thereby make the molten iron obtain the improvement of certain degree at the mobile state of pouring the in-process, not only keep model gasification efficient good, reduce terrace die bottom surface residue problem, and reduce the probability of terrace die bottom surface defect, reduce the disability rate of model because of bottom surface quality problem, the product quality of foundry goods has been improved. In addition, the design structure is simple, the operation is convenient, and the device can be widely applied to the fields needing to prevent the residues on the bottom surface of the male die.

The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.

Claims

1. The concave type sprue gate seat for preventing residues on the bottom surface of a male die is characterized in that: the device comprises a connecting rod (1), a gasket (2) and a concave sprue (3), wherein the connecting rod (1) is vertically arranged at the top end of the gasket (2); the connecting rod (1) is connected with the gasket (2) in an adhesive way; the gasket (2) is vertically arranged at the top end of the concave gate (3); the gasket (2) is connected with the concave gate (3) in an adhesive way;

the concave gate (3) is a cuboid; the middle part of the concave gate (3) is provided with a cavity matched with the reinforcing ribs on the bottom surface of the lost foam model; the cavity is open downward.

2. The female-type tundish nozzle according to claim 1, wherein the lower part of the lower part: the connecting rod (1) is in a solid cylinder shape; the connecting rod (1) is connected with the gasket (2) through glue; and putty is filled in a gap between the connecting rod (1) and the gasket (2).

3. The female-type tundish nozzle holder according to claim 2, wherein: the gasket (2) is a cylinder; the gasket (2) is connected with the concave gate (3) through glue; and putty is filled in a gap between the gasket (2) and the concave sprue (3).

4. The female-type tundish nozzle holder according to claim 3, wherein: the bottom of the concave gate (3) is vertically sleeved on the reinforcing rib on the bottom surface of the lost foam model; the concave pouring gate (3) is bonded and connected with the reinforcing ribs on the bottom surface of the lost foam model through glue; and putty is filled in a gap between the concave pouring gate (3) and the reinforcing ribs on the bottom surface of the lost foam model.

5. The female type tundish nozzle according to any one of claims 1 to 4, wherein: the upper end of the connecting rod (1) is sleeved with a pouring channel.