CN215614909U

CN215614909U - Cooling system special for non-ferrous metal ingot hollow interlayer cooling mold

Info

Publication number: CN215614909U
Application number: CN202121454310.2U
Authority: CN
Inventors: 刘子春; 王思成; 朱攀; 姜贵中; 徐源东; 李艳芳; 秦思璐; 马庆恒
Original assignee: Yunnan Machinery Research & Design Institute
Current assignee: Yunnan Machinery Research & Design Institute
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-01-25
Anticipated expiration: 2031-06-29

Abstract

Cooling system of non ferrous metal ingot cavity intermediate layer cooling mould is exclusively used in, including inserting intubate (13) in the pin centre bore from the jacket bottom inlet of hollow intermediate layer cooling mould, set up in the confession liquid of mould below and be responsible for (14), connect confession liquid branch pipe (15) that supply liquid to be responsible for and intubate, connect fluid-discharge tube (16) outside fluid-discharge outlet (12), install first control valve (10) at the inlet that supplies liquid to be responsible for (14), install second control valve (17) at the fluid-discharge outlet of fluid-discharge tube (16), first control valve and second control valve are connected with control system. The utility model has reasonable design, can uniformly and quickly cool the molten metal in the cavity of the specially-made hollow interlayer cooling mould, realizes the automatic control of liquid inlet and outlet, and has good cooling effect and high production efficiency.

Description

Cooling system special for non-ferrous metal ingot hollow interlayer cooling mold

Technical Field

The utility model relates to the technical field of a non-ferrous metal ingot casting mold cooling system.

Background

In non-ferrous metallurgy, a conventional ingot-forming mold is mainly composed of a mold a and a pin B as shown in fig. 1 and 2. And during ingot casting, injecting non-ferrous metal liquid into the cavity C, and firmly bonding the die, the pin and the non-ferrous metal ingot after cooling and solidification. Demoulding is divided into two steps: (1) a steel rope penetrates through a hole D on the pin, the mould, the pin and the nonferrous metal ingot are lifted together by a lifting device, then the mould is lifted by a sledge hammer, and the nonferrous metal ingot and the pin are still adhered together; (2) and (4) releasing the steel rope penetrating through the pin hole, hanging the nonferrous metal ingot, knocking off the pin by a sledge hammer, and thus completing the demoulding of the alloy ingot.

As shown in fig. 2, the mold and the pins are of solid construction. Since the temperature of the nonferrous metal liquid is above 400 ℃, after the nonferrous metal liquid is cast into a mold, the liquid is cooled slowly mainly from the upper surface due to the too thick wall of the mold, and the following problems occur:

1. demolding of the alloy ingot is very difficult;

2. the heat in the alloy liquid cannot be dissipated for a long time, so that the temperature of the die is increased, and the service life of the die is influenced;

3. because the molten metal is mainly cooled from the upper surface of the die, the cooling is uneven, and the quality of the alloy ingot is influenced.

In view of the above-mentioned disadvantages of the conventional casting mold, it is necessary to develop a hollow sandwich cooling mold which can cool molten metal in a cavity rapidly and uniformly and is easy to be released from the mold, and to develop a cooling system suitable for such a mold.

Disclosure of Invention

The utility model aims to solve the defects of the prior art and provide a simple and efficient special cooling system which is suitable for a hollow interlayer cooling die and can quickly and uniformly cool molten metal in a die cavity of the die.

The technical scheme adopted by the utility model is as follows:

the cooling system is specially used for the nonferrous metal ingot hollow interlayer cooling mould, the special nonferrous metal ingot hollow interlayer cooling mould comprises an integrated mould body, hollow blind hole pins, through holes and a movable ejector rod, wherein the middle part of the integrated mould body is provided with a mould cavity, the periphery of the mould cavity is provided with a jacket; the cooling system comprises an insertion pipe inserted into the pin blind hole from a liquid inlet at the bottom of the jacket of the hollow interlayer cooling die, a liquid supply main pipe arranged below the die, a liquid supply branch pipe connected with the liquid supply main pipe and the insertion pipe, and a liquid discharge pipe connected outside a liquid discharge port, wherein a first control valve is installed at the liquid inlet of the liquid supply main pipe, a second control valve is installed at the liquid discharge port of the liquid discharge pipe, and the first control valve and the second control valve are connected with the control system.

The cooling system disclosed by the utility model is reasonable in design, can be well adapted to a specially designed hollow interlayer cooling mold, enables the mold and the pins to be uniformly and quickly cooled, realizes automatic control of liquid inlet and outlet, and is good in cooling effect and high in production efficiency. The utility model has the advantages of ingenious design, simple structure and high practical value.

Drawings

FIG. 1 is a schematic view of a prior art mold;

FIG. 2 is a cross-sectional view of FIG. 1 taken along the pin;

FIG. 3 is a schematic structural view of a hollow sandwich cooling mold for nonferrous ingots according to the present invention;

FIG. 4 is a schematic view of a hollow sandwich cooling mold sectioned along the pin;

FIG. 5 is a bottom plan view of the cooling system of the present invention;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

FIG. 7 is a left side view of FIG. 6;

fig. 8 is a diagram of the operational layout of the cooling system of the present invention.

Detailed Description

The utility model is further explained below with reference to the drawings.

As shown in figures 3 and 4, the hollow interlayer cooling mould which is adapted to the cooling system and is specially used for casting nonferrous metal ingots comprises a mould body 2, wherein the middle of the mould body is provided with a mould cavity 1 which is opened upwards, the periphery of the mould body is provided with a jacket 3, and a hollow interlayer 5 is formed in the jacket. Hollow blind hole pins 4 integrated with the die body are symmetrically arranged on two sides in the die cavity 1. The top of the hollow blind hole pin is closed, and the center of the hollow blind hole pin is provided with a center hole 6 which is directly communicated with the bottom. The hollow blind hole pin 4 is in a round table shape with a big bottom and a small top. Through holes 9 are symmetrically formed in the inner sides of two hollow blind hole pins at the bottom of the die body, and movable ejector rods 11 which are provided with inner threaded holes and can be jacked up are arranged in the through holes. The hollow interlayer 5 between the die body 2 and the jacket 3 can be filled with cooling liquid which circularly flows, the jacket is provided with a liquid inlet 7 and a liquid outlet 8 which are communicated with the hollow interlayer, the cooling liquid can be injected from the liquid inlet and discharged from the liquid outlet to form the circulation of the cooling liquid in the hollow interlayer, and the alloy liquid poured in the die cavity is continuously cooled. The bottom of the jacket is provided with a liquid inlet 7 of two hollow blind hole pins, cooling liquid continuously enters the hollow interlayer from the liquid inlet, and the cooling liquid with the increased temperature is continuously discharged from the liquid outlet to circularly cool the die. The liquid outlet 8 is arranged on the upper part of the side wall of the jacket, so that the hollow interlayer can be filled with cooling liquid during casting. The liquid inlet is connected with the liquid inlet pipe, the liquid outlet is connected with the liquid outlet pipe, and the liquid in the liquid outlet pipe can be cooled and then recycled. A liquid discharge port 12 is provided at the bottom of the jacket 3, and the cooling liquid in the hollow interlayer is discharged from the liquid discharge port when the mold is not used. The cooling liquid is usually water, but other suitable cooling liquids can be used.

As shown in fig. 5, 6 and 7, the cooling system used in cooperation with the hollow interlayer cooling mold specially used for casting nonferrous metal ingots comprises an insertion pipe 13 inserted into a pin center hole 6 from a liquid inlet 7 at the bottom of a jacket of the hollow interlayer cooling mold, a liquid supply main pipe 14 arranged below the mold, a liquid supply branch pipe 15 connecting the liquid supply main pipe and the insertion pipe, and a liquid discharge pipe 16 connected outside a liquid discharge port 12, wherein a first control valve 10 is installed at a liquid inlet of the liquid supply main pipe 14, a second control valve 17 is installed at a liquid discharge port of the liquid discharge pipe 16, the first control valve and the second control valve are connected with a control system, the control system controls the start and stop of the first control valve and the second control valve, and the control technology is the prior art.

The cooling method adopting the cooling system of the utility model comprises the following steps: as shown in fig. 8, a hollow interlayer cooling mold is fixedly arranged on a support frame 18, a cooling system of the utility model is arranged below the hollow interlayer cooling mold, an insertion pipe 13 is inserted into the pin, the insertion pipe is externally connected with a liquid supply branch pipe 15, a first electromagnetic valve 10 is opened, a second electromagnetic valve 17 is closed, cooling liquid is injected into a central hole 6 of the hollow blind hole pin through the insertion pipe, the cooling liquid flows out from the top of the insertion pipe and enters the hollow interlayer 5 until the cooling liquid flows out from a liquid outlet 8, which indicates that the hollow interlayer of the mold is filled with the cooling liquid, and then the liquid supply is kept. And then nonferrous metal liquid is injected into the cavity of the mold, the cooling liquid entering the hollow blind hole pin from the insertion pipe cools the hollow blind hole pin and then flows into the hollow interlayer, and the cooling liquid circularly flows in the hollow interlayer to cool the mold body, so that the cooling efficiency and the cooling balance can be effectively improved. Because when pouring high temperature molten metal, the partial coolant liquid in the mould cavity intermediate layer is gasified, causes and is full of gas in the pin centre bore, and the pin can not get the cooling, consequently adopts the mode of inserting the intubate and injects cooling liquid into the pin, can prevent to be the gathering of steam in the pin hole after the coolant liquid gasification, plays better balanced cooling's effect. After the non-ferrous metal liquid in the die cavity is cooled and solidified into a metal ingot, the first electromagnetic valve is closed, the cooling liquid in the hollow interlayer of the die stops circulating flow, the movable ejector rod 11 is ejected by the ejector rod 19, the solidified and formed metal ingot is ejected, and the non-ferrous metal ingot is automatically demoulded. When the zinc alloy ingot is not produced and the mold is idle, the first electromagnetic valve is closed, the second electromagnetic valve is opened, and the cooling liquid in the hollow interlayer is drained through the liquid outlet.

The top of the lifting rod 20 is provided with a thread section which is assembled in an internal thread hole of the movable ejector rod, and the lifting rod is stably connected with the movable ejector rod through thread fit.

Claims

1. The cooling system special for the nonferrous metal ingot hollow interlayer cooling mould is characterized by comprising an integrated mould body (2) with a clamping sleeve (3) at the periphery of a mould cavity (1) in the middle, hollow blind hole pins (4) symmetrically arranged at the two sides in the mould cavity and integrated with the mould body, through holes symmetrically arranged at the bottom of the mould body and positioned at the inner sides of the two hollow blind hole pins, and movable ejector rods (11) with internal threaded holes and capable of being assembled in the through holes, a cooling liquid which flows circularly can be injected into the hollow interlayer (5) between the die body (2) and the jacket (3), a liquid outlet (8) for cooling liquid to flow out is formed in the top of the side wall of the jacket, and a liquid outlet (12) for cooling liquid to flow into the liquid inlet and discharge is formed in the bottom of the jacket (3); the cooling system comprises an insertion pipe (13) inserted into a pin blind hole from a liquid inlet (7) at the bottom of a hollow interlayer cooling mold jacket, a liquid supply main pipe (14) arranged below the mold, a liquid supply branch pipe (15) connected with the liquid supply main pipe and the insertion pipe, and a liquid discharge pipe (16) connected outside a liquid discharge port (12), wherein a first control valve (10) is installed at the liquid inlet of the liquid supply main pipe (14), a second control valve (17) is installed at the liquid discharge port of the liquid discharge pipe (16), and the first control valve and the second control valve are connected with the control system.