Die broken pin air pressure detection device

Abstract

The utility model discloses a die broken pin air pressure detection device, which comprises an air pressure detection assembly, a residual water cleaning assembly and a plurality of cooling pins, and is characterized in that the air pressure detection assembly comprises a first air inlet pipe and a flow divider; the flow divider is provided with an air inlet interface, a water outlet interface and a plurality of connecting ports, and the separator is provided with a first pressure sensor; a water outlet header pipe is arranged on a water outlet connector of the flow divider, and a second valve is arranged on the water outlet header pipe; one end of the first air inlet pipe is connected with the air inlet connector, the other end of the first air inlet pipe is connected with a compressed air source, a first valve is arranged on the first air inlet pipe, and a water inlet branch pipe and a water outlet branch pipe are arranged on a water inlet and a water outlet of the cooling pin respectively. The other end of the water inlet branch pipe is connected with the cooling water inlet header pipe, a third valve is arranged on the water inlet branch pipe, and the other end of the water outlet branch pipe is connected with the connector. According to the utility model, the cooling effect of the cooling pin is improved, the pin breaking condition can be efficiently and accurately detected, and the risk of explosion caused by continuous production of the broken pin is avoided.

Description

Technical Field

[0001] This utility model relates to the field of casting cooling technology, and in particular to a mold pin breakage air pressure detection device. Background Technology

[0002] As the die-casting process proceeds, the mold temperature will gradually rise. In order to maintain or reduce the temperature of various parts in the cavity, cooling pipes will be connected to the corresponding pins for cooling.

[0003] However, during the mold opening and closing process, factors such as unreasonable cooling system design, blockage and leakage of cooling water channels, or stress concentration during mold use can cause the cooling pin to break. If the broken cooling pin is not detected and production continues, high-pressure water will enter the mold cavity, and the molten aluminum will come into contact with the water, posing a risk of explosion.

[0004] Therefore, by developing a mold pin breakage air pressure detection device, the cooling pin is subjected to high-pressure cooling during mold closing and production. After the mold is opened and the workpiece is removed, the cooling pin is cleaned of residual water and the air pressure is detected in sequence. This realizes automatic cooling, residual water cleaning and air pressure detection of the cooling pin during the mold production process. While improving the cooling effect of the cooling pin, it can efficiently and accurately detect the breakage situation and avoid the risk of explosion caused by the aluminum liquid coming into contact with water due to the breakage during production. Utility Model Content

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] A mold pin breakage air pressure detection device includes an air pressure detection component, a residual water cleaning component, and a plurality of cooling pins disposed at the mold cooling position, characterized in that:

[0007] The air pressure detection component includes a first air inlet pipe and a flow divider;

[0008] The distributor is provided with an air inlet, a water outlet and multiple connection ports. The distributor has a chamber that communicates with the air inlet, the water outlet and the multiple connection ports. The separator is provided with a first pressure sensor for detecting the air pressure in the chamber.

[0009] The distributor is equipped with a main outlet pipe at its outlet port, and a second valve is installed on the main outlet pipe.

[0010] One end of the first intake pipe is connected to the intake port, and the other end is connected to the compressed air source. A first valve is provided on the first intake pipe.

[0011] The cooling pin is provided with an inlet branch pipe and an outlet branch pipe respectively.

[0012] The other end of the inlet branch pipe is connected to the cooling water inlet main pipe. A third valve is installed on the inlet branch pipe. The other end of the outlet branch pipe is connected to the connection port.

[0013] One end of the residual water cleaning component is connected to a compressed air source, and the other end is connected to a water inlet branch pipe. The residual water cleaning component is used to clean the residual water in the water inlet branch pipe and the cooling pin.

[0014] Preferably, the residual water cleaning assembly includes a second air inlet pipe and a fourth valve. The fourth valve is disposed on the second air inlet pipe. One end of the second air inlet pipe is connected to a compressed air source, and the connection point of the other end with each of the water inlet branch pipes is located between the third valve and the cooling pin.

[0015] Preferably, a second pressure sensor is provided on each of the plurality of water outlet branch pipes, and the second pressure sensor is used to monitor the air pressure of the water outlet branch pipe.

[0016] Preferably, it also includes a control module, which is electrically connected to the first pressure sensor, the second pressure sensor, the first valve, the second valve, the third valve, and the residual water cleaning assembly.

[0017] Preferably, the first valve, the second valve, and the third valve are solenoid valves.

[0018] Preferably, the control module is equipped with an alarm, which is a buzzer and / or a warning light.

[0019] Preferably, the plurality of the third valves are integrated valve control groups.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. This utility model performs high-pressure cooling on the cooling pins during mold closing and production. After the mold is opened and the workpiece is removed, the cooling pins are cleaned of residual water and tested for air pressure in sequence. This realizes automatic cooling, cleaning of residual water and air pressure testing of the cooling pins during the mold production process. While improving the cooling effect of the cooling pins, it can efficiently and accurately detect the breakage of the pins, avoiding the risk of explosion caused by the aluminum liquid coming into contact with water during production if the pins are broken.

[0022] 2. By setting up a residual water cleaning component, the cooling pin is prevented from being poorly cooled due to high temperature and vaporization caused by residual water inside during the second mold closing process, thereby improving the cooling effect of the cooling pin on the mold. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] The components include: air pressure detection assembly 1, residual water cleaning assembly 2, mold 4, cooling pin 5, first pressure sensor 6, main water outlet pipe 7, compressed air source 8, second pressure sensor 9, first air inlet pipe 11, distributor 12, second air inlet pipe 21, fourth valve 22, first valve 10, second valve 20, third valve 30, control module 40, alarm 50, air inlet interface 12a, water outlet interface 12b, connection port 12c, chamber 12d, water inlet branch pipe 100, water outlet branch pipe 200, and cooling water main inlet pipe 300. Detailed Implementation

[0025] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," "up," "down," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0029] like Figure 1 As shown, a mold pin breakage air pressure detection device includes an air pressure detection component 1, a residual water cleaning component 2, and a plurality of cooling pins 5 disposed at the cooling position of the mold 4. The air pressure detection component 1 includes a first air inlet pipe 11 and a distributor 12.

[0030] The splitter 12 is provided with an air inlet 12a, a water outlet 12b and multiple connection ports 12c. The splitter 12 has a chamber 12d that communicates with the air inlet 12a, the water outlet 12b and the multiple connection ports 12c. The separator is provided with a first pressure sensor 6 for detecting the air pressure in the chamber 12d.

[0031] The outlet port 12b of the distributor 12 is provided with an outlet main pipe 7, and the outlet main pipe 7 is provided with a second valve 20;

[0032] One end of the first air intake pipe 11 is connected to the air intake interface 12a, and the other end is connected to the compressed air source 8. A first valve 10 is provided on the first air intake pipe 11.

[0033] The cooling pin 5 is provided with an inlet branch pipe 100 and an outlet branch pipe 200 respectively.

[0034] The other end of the inlet branch pipe 100 is connected to the cooling water inlet main pipe 300. A third valve 30 is installed on the inlet branch pipe 100. The other end of the outlet branch pipe 200 is connected to the connection port 12c.

[0035] One end of the residual water cleaning component 2 is connected to the compressed air source 8, and the other end is connected to the water inlet branch pipe 100. The residual water cleaning component 2 is used to clean the residual water in the water inlet branch pipe 100 and the cooling pin 5.

[0036] Working principle:

[0037] Step 1 (Cooling): When mold 4 is closed and molten aluminum is injected, the cooling signal of mold 4 is given, the second valve 20 and the third valve 30 are opened, the first valve 10 is closed, and the high-pressure cooling water is diverted from the cooling water inlet main pipe 300 to each inlet branch pipe 100 and then enters the corresponding cooling pin 5 for cooling.

[0038] Step 2 (Residual Water Cleaning): After die casting is completed, mold 4 is opened and the workpiece is removed. The third valve 30 is closed, the residual water cleaning component 2 is started, and the compressed air source 8 blows air onto the cooling pin 5 through the water inlet branch pipe 100 to clean the residual water in the cooling pin 5. The residual water is discharged through the distributor 12 and the main water outlet pipe 7.

[0039] Step 3 (Air Pressure Detection): After the residual water cleaning is completed, the residual water cleaning component 2 stops, the second valve 20 closes, the first valve 10 opens, and a 0.6MPa compressed air source 8 is injected and the pressure is maintained for 5 seconds. Then, the first pressure sensor 6 detects whether the air pressure is above 0.55MPa. If the air pressure is lower than the set value, it is determined that a leak has occurred, that is, the cooling pin 5 has broken. At this time, the mold 4 is controlled to stop the die casting operation.

[0040] The above structure provides high-pressure cooling for the cooling pin 5 during mold 4 production. After the mold 4 is opened and the workpiece is removed, the cooling pin 5 is cleaned of residual water and tested for air pressure in sequence. This achieves automatic cooling, cleaning of residual water, and air pressure testing of the cooling pin 5 during the production process of mold 4. While improving the cooling effect of the cooling pin 5, it also efficiently and accurately detects the breakage of the pin, avoiding the risk of explosion caused by the aluminum liquid coming into contact with water if production continues with a broken pin.

[0041] Furthermore, such as Figure 1 As shown, the residual water cleaning assembly 2 includes a second air inlet pipe 21 and a fourth valve 22. The fourth valve 22 is disposed on the second air inlet pipe 21. One end of the second air inlet pipe 21 is connected to the compressed air source 8, and the other end is connected to each of the water inlet branch pipes 100 at a point between the third valve 30 and the cooling pin 5.

[0042] In this embodiment, after die casting is completed, the mold 4 is opened and the workpiece is removed. The third valve 30 is closed and the fourth valve 22 is opened. The compressed air source 8 blows air onto the cooling pin 5 through the second air inlet pipe 21 and the water inlet branch pipe 100 to clean the residual water inside the cooling pin 5. The residual water is discharged through the distributor 12 and the main water outlet pipe 7, thereby preventing the cooling pin 5 from being poorly cooled due to high temperature and vaporization caused by the residual water inside during the second mold closing process, thus improving the cooling effect of the cooling pin 5 on the mold 4.

[0043] Furthermore, in order to quickly and accurately detect broken cooling pins 5, a second pressure sensor 9 is respectively installed on each of the multiple water outlet branch pipes 200. The second pressure sensor 9 is used to monitor the air pressure of the water outlet branch pipes 200.

[0044] In this embodiment, the mold 4 is controlled by detecting whether there is a broken pin through the first pressure sensor 6. When a broken pin is detected, the location of the broken pin can be quickly and accurately located by the pressure value on the second pressure sensor 9. This is mainly for situations where the cooling pin 5 is broken but not directly disconnected and is not easily visible to the naked eye.

[0045] Furthermore, such as Figure 1 As shown, in order to realize the automatic control and monitoring of cooling pin 5 cooling, residual water cleaning and air pressure detection, a control module 40 is also included. The control module 40 is electrically connected to the first pressure sensor 6, the second pressure sensor 9, the first valve 10, the second valve 20, the third valve 30 and the residual water cleaning assembly 2.

[0046] Furthermore, such as Figure 1 As shown, in order to sensitively and reliably control the on / off state of each pipeline, the first valve 10, the second valve 20, and the third valve 30 are solenoid valves.

[0047] Furthermore, such as Figure 1 As shown, in order to allow users to quickly know about the stock shortage, the control module 40 is equipped with an alarm 50, which is a buzzer and / or a warning light.

[0048] Furthermore, such as Figure 1 As shown, in order to facilitate installation and save installation space, the multiple third valves 30 are integrated valve control groups.

[0049] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.

Claims

1. A mold break pin pneumatic detection device, comprising a pneumatic detection assembly, a residual water cleaning assembly, and a plurality of cooling pins arranged at a mold cooling position, characterized in that: the pneumatic detection assembly comprises a first air inlet pipe and a flow divider; the flow divider is provided with an air inlet interface, a water outlet interface, and a plurality of connection interfaces, and a cavity is formed in the flow divider and communicates with the air inlet interface, the water outlet interface, and the plurality of connection interfaces; the flow divider is provided with a first pressure sensor for detecting the air pressure in the cavity; the water outlet interface of the flow divider is provided with a water outlet main pipe, and the water outlet main pipe is provided with a second valve; one end of the first air inlet pipe is connected with the air inlet interface, and the other end is connected with a compressed air source; the first air inlet pipe is provided with a first valve; the water inlet and outlet of the cooling pin are respectively provided with a water inlet branch pipe and a water outlet branch pipe; the other end of the water inlet branch pipe is connected with a cooling water inlet main pipe, and the water inlet branch pipe is provided with a third valve; the other end of the water outlet branch pipe is connected with the connection interface; one end of the residual water cleaning assembly is connected with the compressed air source, and the other end is connected with the water inlet branch pipe; the residual water cleaning assembly is used for cleaning the residual water in the water inlet branch pipe and the cooling pin.

2. The mold break pin air pressure detection device of claim 1, wherein, the residual water cleaning assembly comprises a second air inlet pipe and a fourth valve; the fourth valve is arranged on the second air inlet pipe; one end of the second air inlet pipe is connected with the compressed air source, and the other end is connected with the connection point of each water inlet branch pipe between the third valve and the cooling pin.

3. The mold break pin air pressure detection device of claim 1, wherein, a second pressure sensor is arranged on each water outlet branch pipe; the second pressure sensor is used for monitoring the air pressure of the water outlet branch pipe.

4. The mold break pin air pressure detection device of claim 1, wherein, a control module is further included; the control module is electrically connected with the first pressure sensor, the second pressure sensor, the first valve, the second valve, the third valve, and the residual water cleaning assembly.

5. The mold break pin air pressure detection device of claim 1, wherein, the first valve, the second valve, and the third valve are solenoid valves.

6. The mold break pin air pressure detection device of claim 4, wherein, an alarm is arranged on the control module; the alarm is a buzzer and / or a warning light.

7. The mold break pin air pressure detection device of claim 1, wherein, a plurality of third valves are integrated valve control groups.

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