CN219402221U - Pipe casting die - Google Patents

Abstract

The utility model discloses a pipe casting die which comprises an upper die, a lower die, a core, an electric heating plate and a plug board, wherein an upper die cavity is arranged in the upper die, a lower die cavity is arranged in the lower die, the upper die cavity and the lower die cavity form a die cavity, the core is placed in the die cavity, a plurality of first grooves are formed in the side faces of the upper die and the lower die, the electric heating plate is connected with the first grooves in a pulling and inserting mode, a second groove is formed in the side face of the lower die, the plug board is connected with the second grooves in a pulling and inserting mode, and a plurality of ultrasonic wave emitting heads are arranged on the plug board. In the utility model, the die has a certain temperature, can avoid the excessively fast solidification of flowing alloy solution, is beneficial to the free flow of the alloy solution and full of the whole cavity, and the second liquid port is convenient for discharging air, so that the interior of the alloy solution is slightly inflated by ultrasonic waves, the air is conveniently discharged, the thickness of a final pipe rough blank is uniform, no tiny air holes exist in the interior, the structural strength reaches the technological requirement, the defective rate is low, and the method can be popularized and used.

Description

Pipe casting die

Technical Field

The utility model relates to the field of pipe fitting molds, in particular to a pipe fitting casting mold.

Background

The bending pipe fitting, the valve, the three-way pipe and the like are manufactured through casting, specifically, molten cast iron alloy solution is poured into a mould, the mould is separated after natural cooling, and a pipe fitting rough blank is taken out, but because the cavity in the mould is in a bending shape or a valve shape or a three-way pipe shape and other irregular shapes, and the temperature of the mould is low, when the alloy solution flows in the cavity of the mould, early solidification easily occurs, the alloy is difficult to be fully attached to each part of the cavity, so that the pipe fitting rough blank has higher defective rate, uneven wall thickness of a pipeline, breakage and the like.

Most of the existing dies are provided with only one liquid inlet, air is difficult to discharge in the flowing process of the alloy solution, and the air contacts with the alloy solution and can remain in the alloy solution, so that a plurality of tiny holes are formed in the pipe rough blank, and the strength and toughness of the pipe rough blank are greatly reduced.

Therefore, there is a need to design a pipe casting die.

Disclosure of Invention

The utility model aims to provide a pipe casting die, which mainly solves the problems in the background art.

The utility model provides a pipe casting die which comprises an upper die, a lower die, a core, an electric heating plate and a plug board, wherein an upper die cavity is arranged in the upper die, a lower die cavity is arranged in the lower die, the upper die cavity and the lower die cavity form a die cavity, the core is placed in the die cavity, a plurality of first grooves are formed in the side surfaces of the upper die and the lower die, the electric heating plate is connected with the first grooves in a pulling and inserting mode, a second groove is formed in the side surface of the lower die, the plug board is connected with the second grooves in a pulling and inserting mode, and a plurality of ultrasonic wave emitting heads are arranged on the plug board.

In a preferred embodiment, the top surface of the upper die is provided with a first liquid port and a second liquid port on two sides, and the first liquid port and the second liquid port are communicated with the upper die cavity.

In a preferred embodiment, the inner diameters of the first liquid port and the second liquid port are gradually reduced from bottom to top.

In a preferred embodiment, there are at least two second grooves adjacent to the first liquid port and the second liquid port, respectively.

In a preferred embodiment, the bottom surface of the upper die is provided with a guide post, the top surface of the lower die is provided with a guide groove, and the guide post corresponds to the guide groove in position.

In a preferred embodiment, the heating temperature of the hotplate is between 100 ℃ and 600 ℃.

The utility model has the technical effects and advantages that:

the die has a certain temperature, can avoid the excessively fast solidification of flowing alloy solution, is favorable for the free flow of the alloy solution and filling the whole cavity, is convenient for discharging air by a second liquid port, ensures that the interior of the alloy solution generates tiny drum motion by ultrasonic waves, is convenient for discharging air, ensures that the thickness of a final pipe rough blank is uniform and has no damage, the interior of the pipe rough blank has no tiny air holes, the structural strength reaches the technological requirement, the defective rate is low, and the die can be popularized and used.

Drawings

FIG. 1 is an overall elevation view;

FIG. 2 is an overall cross-sectional view;

FIG. 3 is a bottom view of the upper mold;

fig. 4 is a top view of an electric hot plate;

fig. 5 is a top view of the ferrule block.

Reference numerals illustrate: 1. an upper die; 11. an upper die cavity; 12. a first liquid port; 13. a second liquid port; 2. a lower die; 21. a lower die cavity; 22. a second groove; 23. a plug board block; 24. an ultrasonic wave transmitting head; 3. a core; 4. a first groove; 5. an electric heating plate.

Description of the embodiments

The utility model will be described in further detail with reference to the drawings and the detailed description. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

The utility model provides a pipe fitting casting die utensil, as shown in fig. 1-5, including last mould 1, bed die 2, core 3, electric plate 5 and plug board 23, be provided with the die cavity 11 in going up mould 1, be provided with the die cavity 21 down in the bed die 2, go up die cavity 11 and die cavity 21 formation die cavity down, core 3 is placed in the die cavity, core 3 is the molding sand material, the side of going up mould 1 and bed die 2 all is provided with a plurality of first grooves 4, electric plate 5 and first groove 4 pull out and insert and connect, electric plate 5 circular telegram work promptly, can heat mould 1 and bed die 2 to certain temperature, the side of bed die 2 is provided with second groove 22, plug board 23 and second groove 22 pull out and insert and connect, be provided with a plurality of ultrasonic wave transmitting heads 24 on the plug board 23, ultrasonic wave transmitting heads 24 send the ultrasonic wave, can make the inside minute vibration of molten form alloy solution, can discharge the air.

The plug-in design facilitates maintenance of the electric heating plate 5 and the ultrasonic emitter head 24.

The two sides of the top surface of the upper die 1 are provided with a first liquid port 12 and a second liquid port 13, the first liquid port 12 and the second liquid port 13 are both communicated with the upper die cavity 11, namely molten alloy solution is poured into the first liquid port 12, air is extruded in the flowing process of the alloy solution, and the air is discharged through the second liquid port 13.

The inner diameters of the first liquid port 12 and the second liquid port 13 are gradually reduced from bottom to top, namely, the upper die 1 can smoothly move upwards and demould.

At least two second grooves 22 are respectively close to the first liquid port 12 and the second liquid port 13, namely, plug-in plate blocks 23 are inserted into the second grooves 22, the ultrasonic wave emitting heads 24 work, and residual air is conveniently discharged from the first liquid port 12 and the second liquid port 13.

The bottom surface of the upper die 1 is provided with a guide post, the top surface of the lower die 2 is provided with a guide groove, and the guide post corresponds to the guide groove in position, so that the upper die 1 and the lower die 2 can be conveniently assembled or separated.

The heating temperature of the electric heating plate 5 is between 100 ℃ and 600 ℃, namely the upper die 1 and the lower die 2 can keep higher temperature, and can be solidified more slowly in the flowing process of alloy solution.

A communicated pipeline is further arranged between the upper die 1 and the lower die 2, one end of the pipeline is communicated with the upper die cavity 11, the other end of the pipeline is communicated with the lower die cavity 21, and the pipeline is convenient for molten alloy solution to flow so as to fill the die cavity.

When the die is used, the upper die 1 and the lower die 2 are heated to proper temperatures, the alloy solution is poured into the first liquid port 12, the alloy solution freely flows in the upper die cavity 11 and the lower die cavity 21, the high-temperature upper die 1 and the high-temperature lower die 2 can delay the solidification of the alloy solution, and the alloy solution is convenient to fill the upper die cavity 11 and the lower die cavity 21;

during the flow of the alloy solution, extruding air in the cavity to discharge the air through the second liquid port 13;

if necessary, the ultrasonic wave emitting head 24 is energized to generate minute vibrations inside the alloy solution to discharge bubbles, and the vibration frequency of the ultrasonic wave emitting head 24 is preferably such that the core 3 (the core 3 is made of molding sand) is not damaged.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims (6)

1. The utility model provides a pipe fitting casting die utensil, a serial communication port, including last mould, bed die, core, electric plate and inserted plate, be provided with the die cavity in going up the mould, be provided with the die cavity down in the bed die, go up die cavity and die cavity formation die cavity down, the core is placed in the die cavity, go up the side of mould and bed die and all be provided with a plurality of first grooves, electric plate and first groove pull out the plug connection, the side of bed die is provided with the second groove, inserted plate and second groove pull out the plug connection, be provided with a plurality of ultrasonic emission heads on the inserted plate.

2. A pipe casting die according to claim 1, wherein the upper die is provided with a first liquid port and a second liquid port on both sides of the top surface thereof, both of the first liquid port and the second liquid port being communicated with the upper die cavity.

3. A pipe casting die according to claim 2, wherein the inner diameters of the first and second ports are gradually reduced from bottom to top.

4. A pipe casting die according to claim 3, wherein at least two of the second grooves are adjacent to the first liquid port and the second liquid port, respectively.

5. A pipe casting die according to claim 4, wherein the bottom surface of the upper die is provided with a guide post, the top surface of the lower die is provided with a guide groove, and the guide post corresponds to the guide groove.

6. A pipe casting mould according to claim 5, wherein the heating temperature of the electric heating plate is between 100 ℃ and 600 ℃.