Liquid nitrogen cooling device for aluminum alloy profile extrusion die

Abstract

The utility model relates to a liquid nitrogen cooling device for an aluminum alloy profile extrusion die, which comprises a cart main body, a liquid nitrogen cooling device and a liquid nitrogen cooling device, the liquid nitrogen tank is mounted on the cart main body; the liquid nitrogen tank is provided with a connecting pipeline communicated with the liquid nitrogen tank, and the other end of the connecting pipeline is communicated to a liquid nitrogen separator storage tank; the conveying pipeline is communicated with the liquid nitrogen separator storage tank, and the other end of the conveying pipeline is communicated to an output interface arranged on the cart main body; and an electronic flow control valve is also arranged on the conveying pipeline. According to the device, accurate adjustment of the liquid nitrogen output flow can be achieved through feedback of temperature, pressure and the like, and then the cooling effect of the mold can be well controlled.

Description

Technical Field

[0001] The utility model patent belongs to the field of extrusion die cooling, and in particular relates to a liquid nitrogen cooling device for aluminum alloy profile extrusion dies. Background Art

[0002] At present, the cooling of aluminum alloy extrusion dies usually adopts the method of passing liquid nitrogen into the annular channel on the die sleeve or the channel on the die pad, and then further cools the profile and inerts it. The liquid nitrogen is generally passed directly through a connecting pipe, and its flow rate cannot be controlled, and the cooling degree cannot be controlled. It is also impossible to adjust the flow rate of the liquid nitrogen in time according to the cooling degree, and the cooling effect cannot be well guaranteed. In addition, the existing liquid nitrogen storage equipment is usually fixed, which is not convenient to use between devices of different machines. Utility Model Content

[0003] This patent proposes a liquid nitrogen cooling device for aluminum alloy profile extrusion dies, which can adjust the flow rate and control the cooling effect through temperature feedback.

[0004] The technical means adopted by the utility model are as follows:

[0005] A liquid nitrogen cooling device for an aluminum alloy profile extrusion die, comprising:

[0006] A cart body, wherein wheels are installed at the bottom of the cart body;

[0007] A liquid nitrogen tank is installed on the main body of the cart;

[0008] A connecting pipe connected to the liquid nitrogen tank, the other end of which is connected to a liquid nitrogen separator storage tank; and a delivery pipe connected to the liquid nitrogen separator storage tank, the other end of which is connected to an output interface provided on the cart body;

[0009] And the delivery pipeline is also provided with an electronic flow control valve.

[0010] Preferably, the cart body consists of a bottom structure and a side structure that are connected, the liquid nitrogen tank is placed above the bottom structure, and a pipe interface is provided at a position of the side structure that matches the tank valve position of the liquid nitrogen tank, one end of the connecting pipe is connected to the tank valve of the liquid nitrogen tank, and the other end is connected to an input pipe located in the side structure through the pipe interface, and the other end of the input pipe is connected to the liquid nitrogen separator storage tank located in the side structure.

[0011] Preferably, a master control solenoid valve is provided on the input pipeline, and a first pressure gauge is also provided on the input pipeline between the master control solenoid valve and the liquid nitrogen separator storage tank.

[0012] Preferably, a pressure stabilizing tank is provided in the side structure, the pressure stabilizing tank is connected to the liquid nitrogen separator storage tank via a pressure stabilizing pipeline, and a pressure stabilizing solenoid valve is also provided on the pressure stabilizing pipeline.

[0013] Preferably, the liquid nitrogen separator storage tank is also provided with a second pressure gauge and a first temperature sensor.

[0014] Preferably, the output interface is provided on a side surface of the bottom structure away from the side structure, and an output solenoid valve is also provided on the delivery pipeline between the electronic flow control valve and the output interface.

[0015] Preferably, an electric control system is provided in the bottom structure, and the electric control system is electrically connected to the master control solenoid valve, the first pressure gauge, the second pressure gauge, the first temperature sensor, the voltage-stabilizing solenoid valve, the electronic flow control valve, and the output solenoid valve.

[0016] Preferably, the outside of the cart body also has a second temperature sensor and a bracket located at the bottom of the second temperature sensor, and a sensor interface is also provided at the side of the output interface located at the bottom structure, and the second temperature sensor is electrically connected to the electronic control system through the sensor interface.

[0017] Preferably, a control panel is also provided on the side of the bottom structure where the output interface is provided, and the control panel is connected to the electric control system.

[0018] Preferably, a plurality of positioning blocks are provided between the liquid nitrogen tank and the side structure, with both ends respectively abutting against the liquid nitrogen tank and the side structure, and a fixing belt is also provided on the periphery of the liquid nitrogen tank, with both ends of the fixing belt being provided on the side structure; and sockets are also provided on both sides of the side structure, with a cart handle inserted into the socket, and the cart handle is located on the side of the side structure away from the liquid nitrogen tank.

[0019] Compared with the prior art, the liquid nitrogen cooling device for aluminum alloy profile extrusion dies provided in this solution has a temperature and pressure feedback device, which can timely adjust the output liquid nitrogen flow rate through feedback to accurately control the cooling condition of the mold; the overall design of the device is a structure that is easy to move, and can be used between devices on different machines, which is more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a side structural schematic diagram of the liquid nitrogen cooling device of the utility model.

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the side structure.

[0022] Figure 3 This is a schematic diagram of the front structure of the liquid nitrogen cooling device.

[0023] Figure 4 It is a structural schematic diagram of the second temperature sensor.

[0024] In the figure:

[0025] 1 liquid nitrogen tank;

[0026] 2 tank valves;

[0027] 3. Connect the pipeline;

[0028] 4. Pipeline interface;

[0029] 5 positioning block;

[0030] 6 fixing belt;

[0031] 7. Cart handle;

[0032] 8 sockets;

[0033] 9 wheels;

[0034] 10. Control panel;

[0035] 11 sensor interface;

[0036] 12 output interfaces;

[0037] 13 input pipeline;

[0038] 14 master control solenoid valve;

[0039] 15. First pressure gauge;

[0040] 16. Second pressure gauge;

[0041] 17 a first temperature sensor;

[0042] 18. Voltage stabilizing solenoid valve;

[0043] 19 pressure stabilizing tank;

[0044] 20 electronic flow control valve;

[0045] 21 output solenoid valve;

[0046] 22 liquid nitrogen separator storage tank;

[0047] 23Electronic control system;

[0048] 24 second temperature sensor;

[0049] 25 brackets;

[0050] 26 delivery pipeline;

[0051] 27 pressure stabilizing pipeline;

[0052] 28 bottom structure;

[0053] 29Side structure. DETAILED DESCRIPTION

[0054] like Figure 1-2 As shown, a liquid nitrogen cooling device for an aluminum alloy profile extrusion die is provided, comprising: a cart body, a wheel 9 is installed at the bottom of the cart body, so that the liquid nitrogen cooling device can be moved back and forth between devices of different machines; a liquid nitrogen tank 1 is installed on the cart body; and a connecting pipe 3 is connected to the liquid nitrogen tank 1, and the other end of the connecting pipe 3 is connected to a liquid nitrogen separator storage tank 22; and a delivery pipe 26 is connected to the liquid nitrogen separator storage tank 22, and the other end of the delivery pipe 26 is connected to an output interface 12 provided on the cart body, and is connected to an external mold through the output interface 12 to cool the mold; and an electronic flow control valve 20 is also provided on the delivery pipe 26 to control the output liquid nitrogen flow.

[0055] Specifically, Figure 1 As shown, the cart body is composed of a bottom structure 28 and a side structure 29 that are connected, and the whole is L-shaped. Sockets 8 are also provided on both sides of the side structure 29, and a cart handle 7 is inserted into the socket 8. The cart handle 7 is located on the side of the side structure 29 away from the liquid nitrogen tank 1 to facilitate the movement of the liquid nitrogen cooling device.

[0056] The liquid nitrogen tank 1 is placed above the bottom structure 28. In order to keep the liquid nitrogen tank 1 stable, a plurality of positioning blocks 5 are arranged between the liquid nitrogen tank 1 and the side structure 29, with both ends respectively abutting against the liquid nitrogen tank 1 and the side structure 29. A fixing belt 6 is also arranged on the periphery of the liquid nitrogen tank 1, and both ends of the fixing belt 6 are arranged on the side structure 29.

[0057] A pipe interface 4 is provided at a position of the side structure 29 that matches the position of the tank valve 2 of the liquid nitrogen tank 1. One end of the connecting pipe 3 is connected to the tank valve 2 of the liquid nitrogen tank 1, and the other end is connected to the input pipe 13 located in the side structure 29 through the pipe interface 4. The other end of the input pipe 13 is connected to the liquid nitrogen separator storage tank 22 located in the side structure 29. A master control solenoid valve 14 is provided on the input pipe 13, and a first pressure gauge 15 is also provided on the input pipe 13 between the master control solenoid valve 14 and the liquid nitrogen separator storage tank 22.

[0058] Further, if Figure 2As shown, a pressure stabilizing tank 19 is also provided in the side structure 29, and the pressure stabilizing tank 19 is connected to the liquid nitrogen separator storage tank 22 through a pressure stabilizing pipe 27, and a pressure stabilizing solenoid valve 18 is also provided on the pressure stabilizing pipe 27. A second pressure gauge 16 and a first temperature sensor 17 are also provided on the liquid nitrogen separator storage tank 22. The output interface 12 is provided on a side surface of the bottom structure 28 away from the side structure 29, and an output solenoid valve 21 is also provided on the delivery pipe 26 between the electronic flow control valve 20 and the output interface 12 to collaboratively control the output liquid nitrogen flow and stability.

[0059] Furthermore, an electric control system 23 is provided in the bottom structure 28, and the electric control system 23 is electrically connected to the master control solenoid valve 14, the first pressure gauge 15, the second pressure gauge 16, the first temperature sensor 17, the voltage stabilizing solenoid valve 18, the electronic flow control valve 20, and the output solenoid valve 21, and Figure 4 As shown, the outside of the cart body also has a second temperature sensor 24 and a bracket 25 located at the bottom of the second temperature sensor 24, and as shown in FIG. Figure 3 As shown, a sensor interface 11 is also provided at the side of the output interface 12 located at the bottom structure 28, and the second temperature sensor 24 is electrically connected to the electric control system 23 through the sensor interface 11. A control panel 10 is also provided on the side of the bottom structure 28 where the output interface 12 is provided, and the control panel 10 is control-connected to the electric control system 23. The electric control system 23 receives the measurement data of each part for overall regulation, and accurately controls the output liquid nitrogen to accurately control the cooling temperature of the mold.

Claims

1. A liquid nitrogen cooling device for an aluminum alloy profile extrusion die, characterized in that: include: A cart body, the bottom of which is provided with wheels (9); A liquid nitrogen tank (1) is mounted on the cart body; A connecting pipe (3) connected to the liquid nitrogen tank (1), the other end of the connecting pipe (3) being connected to a liquid nitrogen separator storage tank (22); and a delivery pipe (26) connected to the liquid nitrogen separator storage tank (22), the other end of the delivery pipe (26) being connected to an output interface (12) provided on the cart body; The delivery pipeline (26) is also provided with an electronic flow control valve (20).

2. The liquid nitrogen cooling device for aluminum alloy profile extrusion die according to claim 1, characterized in that: The cart body is composed of a bottom structure (28) and a side structure (29) which are connected to each other. The liquid nitrogen tank (1) is placed above the bottom structure (28). A pipeline interface (4) is provided at a position of the side structure (29) that matches the position of a tank valve (2) of the liquid nitrogen tank (1). One end of the connecting pipeline (3) is connected to the tank valve (2) of the liquid nitrogen tank (1), and the other end is connected to an input pipeline (13) located in the side structure (29) through the pipeline interface (4). The other end of the input pipeline (13) is connected to the liquid nitrogen separator storage tank (22) located in the side structure (29).

3. The liquid nitrogen cooling device for aluminum alloy profile extrusion die according to claim 2, characterized in that: A master control solenoid valve (14) is arranged on the input pipeline (13), and a first pressure gauge (15) is also arranged on the input pipeline (13) between the master control solenoid valve (14) and the liquid nitrogen separator storage tank (22).

4. The liquid nitrogen cooling device for aluminum alloy profile extrusion die according to claim 3, characterized in that: A pressure stabilizing tank (19) is also provided in the side structure (29). The pressure stabilizing tank (19) is connected to the liquid nitrogen separator storage tank (22) via a pressure stabilizing pipeline (27), and a pressure stabilizing solenoid valve (18) is also provided on the pressure stabilizing pipeline (27).

5. The liquid nitrogen cooling device for aluminum alloy profile extrusion die according to claim 4, characterized in that: The liquid nitrogen separator storage tank (22) is also provided with a second pressure gauge (16) and a first temperature sensor (17).

6. The liquid nitrogen cooling device for aluminum alloy profile extrusion die according to claim 5, characterized in that: The output interface (12) is provided on a side surface of the bottom structure (28) away from the side structure (29), and an output solenoid valve (21) is also provided on the delivery pipeline (26) between the electronic flow control valve (20) and the output interface (12).

7. The liquid nitrogen cooling device for aluminum alloy profile extrusion die according to claim 6, characterized in that: An electric control system (23) is arranged in the bottom structure (28), and the electric control system (23) is electrically connected to the master control solenoid valve (14), the first pressure gauge (15), the second pressure gauge (16), the first temperature sensor (17), the voltage-stabilizing solenoid valve (18), the electronic flow control valve (20), and the output solenoid valve (21).

8. The liquid nitrogen cooling device for aluminum alloy profile extrusion die according to claim 7, characterized in that: The outside of the cart body also has a second temperature sensor (24) and a bracket (25) located at the bottom of the second temperature sensor (24), and a sensor interface (11) is also provided at the side of the output interface (12) located at the bottom structure (28), and the second temperature sensor (24) is electrically connected to the electric control system (23) through the sensor interface (11).

9. The liquid nitrogen cooling device for aluminum alloy profile extrusion die according to claim 8, characterized in that: A control panel (10) is also provided on the side of the bottom structure (28) where the output interface (12) is provided, and the control panel (10) is control-connected to the electric control system (23).

10. The liquid nitrogen cooling device for aluminum alloy profile extrusion die according to claim 2, characterized in that: A plurality of positioning blocks (5) are arranged between the liquid nitrogen tank (1) and the side structure (29), with the two ends respectively abutting against the liquid nitrogen tank (1) and the side structure (29), and a fixing belt (6) is also arranged on the periphery of the liquid nitrogen tank (1), with the two ends of the fixing belt (6) being arranged on the side structure (29); and sockets (8) are also arranged on both sides of the side structure (29), with a trolley handle (7) inserted into the socket (8), and the trolley handle (7) is located on a side of the side structure (29) away from the liquid nitrogen tank (1).

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