CN219598039U

CN219598039U - Pouring device for centrifugal composite casting

Info

Publication number: CN219598039U
Application number: CN202320892495.8U
Authority: CN
Inventors: 王鲁宁; 汤德林; 王龙肖; 张俊刚; 赵庆忠
Original assignee: Yantai Wanlong Vacuum Metallurgy Co ltd
Current assignee: Yantai Wanlong Vacuum Metallurgy Co ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-08-29
Anticipated expiration: 2033-04-17

Abstract

The utility model relates to a pouring device for centrifugal composite casting, and belongs to the technical field of pouring devices. The casting device comprises a base, two or more than two groups of casting units are arranged on the base, each group of casting units comprises a casting ladle, a filter tank, a stopper rod, a lifting device and a weighing meter, wherein the bottom of the casting ladle is provided with a pouring opening, the outer side of the pouring opening is connected with a casting pipe, the stopper rod used for sealing the pouring opening is arranged in the casting ladle, the lifting device is used for controlling the lifting of the stopper rod, the filter tank is arranged on the casting pipe, and the weighing meter is arranged on the base and is positioned below the casting ladle. The casting device adopts the bottom casting mode to carry out casting, reduces the contact time of the metal liquid and air, avoids the occurrence of air suction and oxidation of high-temperature metal liquid, can realize rapid alternate and reciprocating casting between the two metal liquids, improves the production efficiency, can realize the accurate control of the size of a workpiece, and reduces the processing amount of the workpiece.

Description

Pouring device for centrifugal composite casting

Technical Field

The utility model relates to a pouring device for centrifugal composite casting, and belongs to the technical field of pouring devices.

Background

The double/multilayer metal composite material is a composite metal material formed by carrying out different processing technologies on two or more metals, can play a role of 'complementary effect' while keeping different characteristics of each metal, makes up the defects of each metal material, has excellent comprehensive performance, and is widely applied to a plurality of fields of automobile manufacturing, mechanical engineering, metallurgical engineering, rail transit and the like.

The preparation process of the double/multilayer metal composite material is various, and the centrifugal composite casting technology can ensure that two different metal materials can realize firm metallurgical bonding on an interface, and has the characteristics of low production cost, short flow and simple preparation process. In the conventional centrifugal composite casting process, different molten metal is independently controlled to perform pouring, and then another molten metal is changed to perform pouring after the pouring is completed, as shown in fig. 1, in the conventional centrifugal composite casting process, a travelling crane is adopted to hoist a ladle 14 through a steel wire rope 16 to realize pouring of the molten metal, the ladle 14 is tilted by manually rotating a turntable during pouring, the molten metal is injected into a launder 15 (the pouring mode is top pouring), metal in the launder 15 flows into a centrifugal casting mold again, and after one molten metal is poured, another molten metal needs to be hoisted to perform continuous pouring again.

The conventional centrifugal composite casting process has the following defects: (1) When in top injection, the molten metal is contacted with air, so that the molten metal is easy to oxidize, and the quality of the double/multilayer metal composite material is affected; (2) The injection flow rate of the molten metal is poor in precision and stability when the ladle is manually rotated, the temperature control is inaccurate, the injection flow rate is not easy to control, and the quality and the comprehensive performance of a final product are affected; (3) The switching time is long when two different metals are poured mutually, so that the working period is long, and the working efficiency is influenced; (4) Sometimes, two molten metals share one casting system, which causes pollution of the molten metals.

The utility model aims to provide a pouring device for centrifugal composite casting to solve the problems.

Disclosure of Invention

The utility model aims to provide a novel centrifugal composite casting pouring device so as to improve or solve the technical problems in the prior art.

The technical scheme provided by the utility model is as follows: the utility model provides a centrifugal compound casting's pouring device, includes the base, be equipped with two sets of or more than two sets of pouring units on the base, every group pouring unit all includes pouring ladle, filter vat, stopper stick, elevating gear and weighing meter, the bottom of pouring ladle is equipped with the injection port, the outside of injection port with the pouring tube coupling, be equipped with in the pouring ladle and be used for sealedly the stopper stick of injection port, elevating gear is used for control the lift of stopper stick, the filter vat sets up on the pouring tube, the weighing meter sets up on the base and be located the pouring ladle below.

Further, the filter tank comprises a hollow shell and a filter screen arranged in the shell, an inlet and an outlet are arranged on the shell, the inlet and the outlet are oppositely arranged on two sides of the shell, and the filter screen is vertically arranged between the inlet and the outlet.

Further, the inner side walls of the casting ladle are respectively provided with a first lining, and the inner side walls of the shell are respectively provided with a second lining.

Further, the upper part of the shell is opened, and a top cover which can be opened and closed is arranged above the shell.

The beneficial effect of adopting above-mentioned further scheme is, the top cap can be opened, can clear up the floater of filter screen one side molten metal top or change the filter screen in the pouring process.

Further, the lifting device comprises a driving cylinder and a transverse connecting rod, the driving cylinder is installed on the ladle, an output shaft of the driving cylinder is connected with one end of the transverse connecting rod, and the other end of the transverse connecting rod is connected with the stopper rod.

Further, the lifting device is a screw rod lifter, and a screw rod of the screw rod lifter drives the stopper rod to lift through a transverse connecting rod.

Further, the lifting device comprises a box body, and transmission parts of the lifting device are all arranged in the box body.

Further, the base is provided with a plurality of supporting seats, and each group of filter tanks of the pouring units are arranged on the respective supporting seats.

Further, the base is also provided with a plurality of lifting lugs.

Furthermore, the end of the pouring pipe is provided with a pouring opening, and the pouring pipes of each group of pouring units are gathered towards the same side and are connected together through reinforcing ribs.

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

(1) The pouring device adopts the bottom pouring mode to pour, so that the contact time of the molten metal and air is reduced, the occurrence of air suction and oxidation of the high-temperature molten metal is avoided, meanwhile, the filter tank is added in the middle of the pouring pipe, the covering agent on the surface of the molten metal in the pouring ladle can be effectively prevented from entering the centrifugal cavity together, and the performance and quality of the product are improved;

(2) The precise control of the molten metal pouring rate is realized by adopting a combination of a weighing meter and a stopper rod closure, when the pouring rate reaches a required value, the stopper rod is closed to realize closure, and simultaneously, the stopper rod in another molten metal pouring ladle is opened to start pouring, the pouring flow can be controlled more stably by adopting a stopper rod bottom pouring mode, and the rapid alternate and reciprocating pouring can be realized between two molten metals, so that the production efficiency is improved, the precise control of the size of a workpiece can be realized, and the processing amount of the workpiece is reduced.

Drawings

FIG. 1 is a schematic view of a prior art casting apparatus;

FIG. 2 is a top view of the casting apparatus of the present utility model;

FIG. 3 is a left side view of FIG. 2 of the present utility model;

FIG. 4 is a schematic view of the internal structure of the ladle of the present utility model;

FIG. 5 is a schematic view of the interior of the filter tank of the present utility model;

FIG. 6 is a schematic view of a lifting device according to a second embodiment of the present utility model;

in the figure, 1, a base; 2. weighing meter; 3. lifting lugs; 4. casting ladle; 5. a first liner; 6. a stopper rod; 7. a lifting device; 701. rotating the handle; 702. a case; 703. a screw rod; 704. a transverse connecting rod; 705. a filling port; 8. a filter tank; 801. a housing; 802. a second liner; 803. a top cover; 804. a filter screen; 9. a support base; 10. a pouring tube; 11. a sprue gate; 12. a drive cylinder; 13. an output shaft; 14. shaking the bag; 15. a launder; 16. a wire rope.

Detailed Description

The principles and features of the present utility model are described below in connection with examples, which are set forth only to illustrate the present utility model and not to limit the scope of the utility model.

First embodiment:

as shown in fig. 2-5, a pouring device for centrifugal composite casting comprises a base 1, wherein two or more than two groups of pouring units are arranged on the base 1, each group of pouring units comprises a pouring ladle 4, a filter tank 8, a stopper rod 6, a lifting device 7 and a weighing meter 2, a pouring opening 705 is arranged at the bottom of the pouring ladle 4, the outer side of the pouring opening 705 is connected with a pouring pipe 10, a stopper rod 6 for sealing the pouring opening 705 is arranged in the pouring ladle 4, the lifting device 7 is used for controlling lifting of the stopper rod 6, the filter tank 8 is arranged on the pouring pipe 10, and the weighing meter 2 is arranged on the base 1 and positioned below the pouring ladle 4.

In this embodiment, two sets of pouring units are provided on the base 1 for casting the bimetal composite material. Of course, when it is desired to cast a multi-layered metal composite, the casting units may be more groups.

More specifically, the filter tank 8 includes a hollow housing 801 and a filter screen 804 disposed in the housing 801, wherein the housing 801 is provided with an inlet and an outlet, the inlet and the outlet are disposed on two sides of the housing 801, and the filter screen 804 is disposed between the inlet and the outlet. The molten metal enters the shell 801 from the inlet, flows out from the outlet after being filtered by the filter screen 804, and the filter screen 804 can filter the molten metal flowing out from the casting ladle 4 and filter out particles such as impurities in the molten metal, so that the quality of cast products is improved.

The inner side walls of the casting ladle 4 are respectively provided with a first lining 5, the inner side walls of the shell 801 are respectively provided with a second lining 802, and the first lining 5 and the second lining 802 are both made of refractory materials.

The housing 801 is opened at the upper side, and a cover 803 which can be opened and closed is provided at the upper side of the housing 801. The top cover 803 can be opened, and floating objects above molten metal on one side of the filter screen 804 can be cleaned in the casting process. The filter screen 804 is a porous refractory material, and when used to some extent, the filter screen 804 can be replaced.

As shown in fig. 3 and 4, the lifting device is a screw rod lifter, and a screw rod 703 of the screw rod lifter drives the stopper rod 6 to lift through a transverse connecting rod 704. In this embodiment, the screw rod lifter has a rotating handle 701, the rotating handle 701 is in transmission connection with the screw rod 703, the rotating handle 701 is rotated, and the screw rod 703 is lifted to drive the stopper rod 6 to lift, so as to realize opening and closing of the injection port 705. In addition, the lifting device 7 further comprises a box 702, and the transmission parts of the lifting device 7 are all arranged in the box 702.

The base 1 is provided with a plurality of supporting seats 9, and each group of filter tanks 8 of the pouring units are arranged on the respective supporting seat 9.

The base 1 is also provided with a plurality of lifting lugs 3. The casting device is convenient to hoist and transport.

The end of the pouring tube 10 is provided with a pouring opening 11, and the pouring tubes 10 of each group of pouring units are gathered towards the same side and are connected together through reinforcing ribs.

The working process of the pouring device for centrifugal composite casting of the embodiment is as follows:

when the casting machine works, two different molten metal solutions are respectively filled into the ladles 4 of the two groups of casting units, after the temperature is reduced to a specified temperature, the rotating handle 701 is rotated, the screw rod 703 is lifted, the screw rod 703 drives the stopper rod 6 to lift up through the transverse connecting rod 704, the stopper rod 6 leaves the pouring opening 705, the molten metal flows into the pouring opening 705, the casting pipe 10 and the filtering groove 8 in sequence, and finally flows into the casting mould through the pouring opening 11. At this time, the change of the numerical value of the weighing scale 2 is observed, when the weight is lowered to a specified value, the rotary handle 701 is reversely rotated, the screw 703 is lowered, the screw 703 drives the stopper rod 6 to be lowered through the transverse connecting rod 704, the pouring port 705 is closed, molten metal is stopped, the stopper rod 6 of the other ladle 4 is opened to perform pouring at the same time, the weighing scale 2 is observed, and when the weight of molten metal is lowered to the specified value, the stopper rod 6 is closed. The process is repeated, so that alternate and reciprocating pouring between two molten metals can be realized.

Specific embodiment II:

as shown in fig. 6, unlike the first embodiment, the lifting device 7 includes a driving cylinder 12 and a transverse connection rod 704, the driving cylinder 12 is mounted on the ladle 4, an output shaft 13 of the driving cylinder 12 is connected with one end of the transverse connection rod 704, the other end of the transverse connection rod 704 is connected with the upper end of the stopper rod 6, the lower end of the stopper rod 6 is located above the pouring opening 705, the stopper rod 6 is driven to lift by the telescopic action of the output shaft 13 of the driving cylinder 12, when the stopper rod 6 descends and is blocked at the pouring opening 705, the pouring opening 705 is closed, copper liquid does not flow into the pouring tube 10 from the pouring opening 705, and after the stopper rod 6 ascends away from the pouring opening 705, the pouring opening 705 is opened, and copper liquid can flow into the pouring tube 10 from the pouring opening 705. The driving cylinder 12 may be a cylinder, an oil cylinder or a linear electric cylinder.

when the casting machine works, two different molten metal solutions are respectively filled into the ladles 4 of the two groups of casting units, after the temperature is reduced to a specified temperature, the driving cylinder 12 is started, the output shaft 13 of the driving cylinder 12 extends upwards and drives the stopper rod 6 to ascend through the transverse connecting rod 704, the stopper rod 6 leaves the pouring opening 705, the molten metal flows into the pouring opening 705, the casting pipe 10 and the filtering tank 8 in sequence, and finally flows into the casting mould through the pouring opening 11. At this time, the change of the value of the weighing scale 2 is observed, when the weight is reduced to a specified value, the output shaft 13 of the driving cylinder 12 is retracted downwards and drives the stopper rod 6 to descend through the transverse connecting rod 704, the pouring opening 705 is closed, molten metal is stopped, the stopper rod 6 of the other ladle 4 is opened to perform pouring, the weighing scale 2 is observed, and when the weight of molten metal is reduced to the specified value, the stopper rod 6 is closed. The process is repeated, so that alternate and reciprocating pouring between two molten metals can be realized.

It should be further noted that, in addition to the above-mentioned structure, there are many mechanisms in the prior art capable of driving the stopper rod 6 to lift, such as a worm gear lifting device, a rack-and-pinion lifting device, etc., the above-mentioned is merely a preferred embodiment of the present utility model, and the present utility model is not limited thereto, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a centrifugal compound casting's pouring device, includes base (1), its characterized in that, be equipped with two sets of or more than two sets of pouring units on base (1), every group pouring unit all includes pouring ladle (4), filter vat (8), stopper (6), elevating gear (7) and weighing meter (2), the bottom of pouring ladle (4) is equipped with injection port (705), the outside and pouring tube (10) of injection port (705) are connected, be equipped with in pouring ladle (4) and be used for sealedly stopper (6) of injection port (705), elevating gear (7) are used for controlling the lift of stopper (6), filter vat (8) set up on pouring tube (10), weighing meter (2) set up on base (1) and be located pouring ladle (4) below.

2. The centrifugal composite casting pouring device according to claim 1, wherein the filter tank (8) comprises a hollow shell (801) and a filter screen (804) arranged in the shell (801), an inlet and an outlet are arranged on the shell (801), the inlet and the outlet are oppositely arranged on two sides of the shell (801), and the filter screen (804) is vertically arranged between the inlet and the outlet.

3. The pouring device for centrifugal composite casting according to claim 2, wherein a first lining (5) is provided on the inner side wall of the ladle (4), and a second lining (802) is provided on the inner side wall of the housing (801).

4. The pouring device for centrifugal composite casting according to claim 2, wherein the housing (801) is opened at the upper side, and a cover (803) capable of opening and closing is provided at the upper side of the housing (801).

5. The pouring device for centrifugal composite casting according to claim 1, wherein the lifting device (7) comprises a driving cylinder (12) and a transverse connecting rod (704), the driving cylinder (12) is mounted on the ladle (4), an output shaft (13) of the driving cylinder (12) is connected with one end of the transverse connecting rod (704), and the other end of the transverse connecting rod (704) is connected with the stopper rod (6).

6. The pouring device for centrifugal composite casting according to claim 1, wherein the lifting device (7) is a screw lifter, and a screw (703) of the screw lifter drives the stopper rod (6) to lift through a transverse connecting rod (704).

7. The pouring device for centrifugal composite casting according to claim 6, wherein the lifting device (7) comprises a box (702), and the transmission parts of the lifting device (7) are all arranged in the box (702).

8. Pouring device for centrifugal composite casting according to claim 1, characterized in that the base (1) is provided with a number of support seats (9), the filter tanks (8) of each group of pouring units being arranged on the respective support seat (9).

9. Pouring device for centrifugal composite casting according to claim 1, characterized in that the base (1) is also provided with several lifting lugs (3).

10. Pouring device for centrifugal composite casting according to claim 1, characterized in that the ends of the pouring tubes (10) are provided with pouring gates (11), the pouring tubes (10) of each group of pouring units being gathered to the same side and connected together by means of reinforcing ribs.