Release agent mixing device and spraying system

Abstract

This utility model relates to a mold release agent proportioning device and a spraying system, belonging to the field of track link production technology. It includes a hydraulic proportioning pump and a mold release agent mixing tank. The hydraulic proportioning pump is connected to a water supply pipe, a raw material pipe, and a liquid supply pipe. The other end of the water supply pipe is connected to a purified water tank, and the other end of the raw material pipe is connected to the bottom of the mold release agent raw material tank. A hydraulically controlled one-way valve A is installed on the exhaust pipe. The hydraulically controlled one-way valve A's control port is connected to the outlet of a diaphragm pump through a control pipe. The mold release agent mixing tank is a sealed tank, equipped with an air inlet pipe communicating with its upper part and an external exhaust pipe communicating with the bottom of the mold release agent mixing tank. This utility model has the following advantages: the hydraulic proportioning pump directly utilizes the water pressure flowing in the pipeline as a power source, quantitatively drawing in the mold release agent raw material from the raw material tank according to a proportion, replacing manual proportioning of the mold release agent mixture, fixing the spraying rhythm, and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to a mold release agent mixing device and a spraying system, belonging to the field of track link production technology. Background Technology

[0002] Track links are crucial components in the tracks of construction machinery such as bulldozers and excavators, and there is a large market demand for them. Track links operate in harsh environments and are subjected to complex stresses, needing to withstand significant random alternating loads during operation. They are among the most vulnerable components to failure in the walking systems of tracked construction machinery.

[0003] Utility model patent number 202121881143.X discloses an automatic mold spraying device for forging track links, including a mold release agent dissolving tank. A feeding port is installed at the top of the mold release agent dissolving tank, a stirring device is installed inside the tank, and a liquid outlet is located at the bottom. A lower mold release agent nozzle is installed on the upper mold of the track link die forging and pressing machine, spraying upwards at an angle. An upper mold release agent nozzle is installed on the lower mold of the same machine, spraying downwards at an angle. This utility model has the following advantages: it has a compact structure, is simple to manufacture, has low cost, and is easy to use, thus improving work efficiency to a certain extent.

[0004] Although the aforementioned patent can achieve automatic mold spraying, the current technology is not comprehensive and has the following drawbacks: due to the lack of a corresponding mold release agent mixing device, manual mixing is inefficient and the mixing ratio is not scientific enough, resulting in large errors in the proportion of added materials, which leads to inaccurate mixing of the materials and takes a long time. In order to ensure that the die-cast parts can be successfully demolded, the operator will inevitably increase the amount of mold release agent raw materials used.

[0005] To solve one of the above problems, there is an urgent need for a mold release agent mixing device and a spraying system. Utility Model Content

[0006] Based on the shortcomings of the existing technology, the technical problem to be solved by this utility model is: how to replace manual mixing of release agent, fix the spraying rhythm, and improve production efficiency. To this end, a release agent mixing device and a spraying system are provided.

[0007] The mold release agent mixing device of this utility model includes a hydraulic proportioning pump and a mold release agent mixing tank. The hydraulic proportioning pump is connected to a water supply pipe, a raw liquid pipe, and a liquid supply pipe. The other end of the water supply pipe is connected to a purified water tank. The other end of the raw liquid pipe is connected to the bottom of the mold release agent raw liquid tank. The other end of the liquid supply pipe is connected to the inside of the mold release agent mixing tank. A one-way valve B for controlling the flow direction of the mold release agent dilution is installed on the liquid supply pipe. An electrically controlled valve A and a diaphragm pump are installed on the water supply pipe. An exhaust pipe connected to the inner cavity of the mold release agent mixing tank is provided at the top. A hydraulically controlled one-way valve A is installed on the exhaust pipe. The hydraulically controlled one-way valve A is connected to the outlet of the diaphragm pump through a hydraulically controlled pipe. The mold release agent mixing tank is a sealed tank. An air inlet pipe connected to the upper part of the mold release agent mixing tank and an external exhaust pipe connected to the bottom of the mold release agent mixing tank are provided on the mold release agent mixing tank.

[0008] When the hydraulic control check valve A is not unlocked, the flow direction of the exhaust pipe is restricted so that outside air can only enter the interior of the mold release agent mixing tank. This is to allow air to enter the mold release agent mixing tank and prevent air from flowing out of the mold release agent mixing tank, thus preventing the mold release agent mixing tank from leaking.

[0009] Preferably, a stirrer is installed inside the mold release agent mixing tank, the stirrer is mounted on a stirring shaft, a rotary drive is installed on the sealing end cover at the top of the mold release agent mixing tank, the top end of the stirring shaft passes through the sealing end cover and is connected to the stirring shaft for transmission, the stirring shaft is driven to rotate by the rotary drive, and a rotary seal is provided at the connection between the stirring shaft and the sealing end cover.

[0010] Preferably, the rotary drive component is a pneumatic motor. Powered by compressed air, it can operate stably in high-temperature, humid, dusty, and corrosive environments, producing pollution-free exhaust air, making it suitable for cleanroom industries.

[0011] This utility model also discloses a mold release agent spraying system, characterized in that it includes the above-mentioned mold release agent mixing device, and further includes a main air supply pipe. One end of the main air supply pipe is connected to an air supply source, and the other end of the main air supply pipe is connected to a first air supply branch pipe, a second air supply branch pipe, a third air supply branch pipe, and a fourth air supply branch pipe. The third air supply branch pipe is connected to the air inlet of a pneumatic motor, and the fourth air supply branch pipe is connected to an air inlet pipe. The exhaust pipe is connected to a first liquid supply branch pipe and a second liquid supply branch pipe. The first air supply branch pipe and the first liquid supply branch pipe are respectively connected to the liquid inlet and the spray air source interface of the upper mold mold release agent nozzle. The second air supply branch pipe and the second liquid supply branch pipe are respectively connected to the liquid inlet and the spray air source interface of the lower mold mold release agent nozzle. A fifth solenoid valve for controlling the on / off of the pipeline is installed on the exhaust pipe.

[0012] When the hydraulic proportioning pump is not in operation, the diaphragm pump is in the off state. At this time, the first, second, and fourth air supply branches can be controlled to be open, and the fifth solenoid valve can be opened to realize the opening of the external discharge pipe. At this time, the first and second air supply branches supply air to the upper mold release agent nozzle and the lower mold release agent nozzle, respectively. The fourth air supply branch supplies air to the release agent mixing tank, which increases the air pressure in the release agent mixing tank. The release agent dilution liquid in the release agent mixing tank is supplied to the upper mold release agent nozzle and the lower mold release agent nozzle through the external discharge pipe, the first liquid supply branch, and the second liquid supply branch. The lower mold release agent nozzle is installed on the upper mold of the track link die forging and forming machine, and sprays upward at an angle, pointing towards the upper mold cavity. The upper mold release agent nozzle is installed on the lower mold of the track link die forging and forming machine, and sprays downward at an angle, pointing towards the lower mold cavity. The spraying range is large and the spraying is more uniform. Simultaneously, a third air supply branch pipe can be connected, which supplies air to the rotary drive component. The rotary drive component drives the stirrer to rotate via a stirring shaft, ensuring the uniformity of the release agent dilution liquid in the release agent mixing tank.

[0013] Preferably, the first gas supply branch pipe is equipped with a first regulating valve and a first solenoid valve for controlling the on / off state of the pipeline; the second gas supply branch pipe is equipped with a second regulating valve and a second solenoid valve for controlling the on / off state of the pipeline; the third gas supply branch pipe is equipped with a third regulating valve and a third solenoid valve for controlling the on / off state of the pipeline; and the fourth gas supply branch pipe is equipped with a fourth regulating valve and a fourth solenoid valve for controlling the on / off state of the pipeline.

[0014] The first, second, third, and fourth air supply branches are controlled by the first, second, third, and fourth solenoid valves, respectively. Through the branching of the air pipes, a complex pneumatic circuit with multiple valves in parallel can be constructed. The solenoid valves can achieve millisecond-level switching action to ensure the immediacy of air pipe opening and closing.

[0015] Preferably, the first gas supply branch pipe, the second gas supply branch pipe, the third gas supply branch pipe and the fourth gas supply branch pipe are all flexible gas pipes.

[0016] Preferably, the first liquid supply branch pipe and the second liquid supply branch pipe are liquid supply hoses.

[0017] Preferably, the upper mold release agent nozzle and the lower mold release agent nozzle are air atomizing fan-shaped nozzles. This results in a large spraying range and more uniform spraying.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The mold release agent mixing device described in this invention replaces the manual mixing of mold release liquid, and the spraying rhythm is fixed, thereby improving production efficiency.

[0020] The mold release agent proportioning device of this utility model, after the diaphragm pump and the electrically controlled valve A are opened, the diaphragm pump supplies pure water to the hydraulic proportioning pump. The hydraulic proportioning pump directly uses the water pressure flowing in the pipeline as a power source to draw the mold release agent concentrate from the mold release agent concentrate tank in a proportional and quantitative manner, and then combines it with the water as the driving force. Under the action of water pressure, the fully mixed mold release agent dilution is then transported to the mold release agent mixing tank. The added mold release agent concentrate is always directly proportional to the volume entering the proportioning pump, and is independent of changes in water pressure and water volume in the pipeline, thereby achieving precise flow ratio mixing and addition. In the state where the diaphragm pump is open, the hydraulic control check valve A is unlocked under the action of water pressure, and the air in the mold release agent mixing tank is discharged through the exhaust pipe, ensuring that the mold release agent dilution smoothly enters the mold release agent mixing tank.

[0021] The mold release agent spraying system of this utility model has an upper mold mold release agent nozzle installed on the lower mold of the track link forging press forming machine. It sprays downward at an angle, pointing towards the lower mold cavity, resulting in a large spraying range and more uniform spraying. At the same time, it can also connect to a third air supply branch pipe, which supplies air to the rotary drive component. The rotary drive component drives the agitator to rotate through a stirring shaft, ensuring the uniformity of the mold release agent dilution liquid in the mold release agent mixing tank.

[0022] The release agent spraying system described in this utility model can construct a complex pneumatic circuit with multiple valves connected in parallel through air pipe branches. The solenoid valves can achieve millisecond-level switching actions, ensuring the immediacy of air pipe opening and closing. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0024] Figure 1 This is a schematic diagram of the structure of the mold release agent proportioning device of this utility model;

[0025] Figure 2 for Figure 1 Schematic diagram of the substructure of a hydraulic proportioning dosing pump;

[0026] Figure 3 This is a schematic diagram of the release agent spraying system of this utility model.

[0027] In the diagram: 1. Hydraulic proportioning pump; 2. Release agent mixing tank; 3. Exhaust pipe; 4. Hydraulic check valve A; 5. Water supply pipe; 6. Release agent concentrate tank; 7. Concentrate pipe; 8. Supply pipe; 9. Electrically controlled valve A; 10. Check valve B; 11. Diaphragm pump; 12. Pure water tank; 13. Air inlet pipe; 14. Outlet pipe; 15. Agitator; 16. Rotary drive component; 17. Agitator shaft; 18. Main air supply pipe; 19. First air supply branch pipe; 20. Second air supply branch pipe; 21. Third air supply branch pipe; 22. Fourth air supply branch pipe; 23. Upper mold release agent nozzle; 24. Lower mold release agent nozzle; 25. First liquid supply branch pipe; 26. Second liquid supply branch pipe; 27. First regulating valve; 28. First solenoid valve; 29. ​​Fifth solenoid valve. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings: The present invention will be further described below through specific embodiments, but it is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0029] Example 1, as Figure 1-2 As shown, the mold release agent mixing device includes a hydraulic proportioning pump 1 and a mold release agent mixing tank 2. The hydraulic proportioning pump 1 is connected to a water supply pipe 5, a raw material pipe 7, and a liquid supply pipe 8. The other end of the water supply pipe 5 is connected to a purified water tank 12. The other end of the raw material pipe 7 is connected to the bottom of the mold release agent raw material tank 6. The other end of the liquid supply pipe 8 is connected to the inside of the mold release agent mixing tank 2. A one-way valve B10 for controlling the flow direction of the mold release agent dilution is installed on the liquid supply pipe 8. The water supply pipe 5 is equipped with an electrically controlled valve A9 and a diaphragm pump 11. The top of the mold release agent mixing tank 2 is provided with an exhaust pipe 3 connected to its inner cavity. A hydraulic control check valve A4 is installed on the exhaust pipe 3. The hydraulic control port of the hydraulic control check valve A4 is connected to the outlet of the diaphragm pump 11 through a hydraulic control pipe. The mold release agent mixing tank 2 is a sealed tank. The mold release agent mixing tank 2 is provided with an air inlet pipe 13 connected to its upper part and an external exhaust pipe 14 connected to the bottom of the mold release agent mixing tank 2.

[0030] When the hydraulic control check valve A4 is not unlocked, the flow direction of the exhaust pipe 3 is restricted so that outside air can only enter the interior of the mold release agent mixing tank 2, which is used to allow air to enter the mold release agent mixing tank 2 and prevent air from flowing out of the mold release agent mixing tank 2, thus preventing the mold release agent mixing tank 2 from leaking.

[0031] After the diaphragm pump 11 and the electrically controlled valve A9 are opened, the diaphragm pump 11 supplies pure water to the hydraulic proportioning pump 1. The hydraulic proportioning pump 1 directly uses the water pressure flowing in the pipeline as a power source to draw in the release agent concentrate from the release agent concentrate tank 6 in a proportional and quantitative manner, and then combines it with the water used as the driving force. Under the action of water pressure, the fully mixed release agent dilution is then transported to the release agent mixing tank 2. The added release agent concentrate is always directly proportional to the volume entering the proportioning pump, and is independent of changes in water pressure and water volume in the pipeline, thereby achieving precise flow rate proportioning mixing and addition.

[0032] When the diaphragm pump 11 is turned on, the hydraulic check valve A4 is unlocked under water pressure, and the air in the release agent mixing tank 2 is discharged through the exhaust pipe 3, ensuring that the release agent dilution liquid smoothly enters the release agent mixing tank 2.

[0033] Example 2, as Figure 1-2 As shown, the mold release agent mixing device includes a hydraulic proportioning pump 1 and a mold release agent mixing tank 2. The hydraulic proportioning pump 1 is connected to a water supply pipe 5, a raw material pipe 7, and a liquid supply pipe 8. The other end of the water supply pipe 5 is connected to a purified water tank 12. The other end of the raw material pipe 7 is connected to the bottom of the mold release agent raw material tank 6. The other end of the liquid supply pipe 8 is connected to the inside of the mold release agent mixing tank 2. A one-way valve B10 for controlling the flow direction of the mold release agent dilution is installed on the liquid supply pipe 8. The water supply pipe 5 is equipped with an electrically controlled valve A9 and a diaphragm pump 11. The top of the mold release agent mixing tank 2 is provided with an exhaust pipe 3 connected to its inner cavity. A hydraulic control check valve A4 is installed on the exhaust pipe 3. The hydraulic control port of the hydraulic control check valve A4 is connected to the outlet of the diaphragm pump 11 through a hydraulic control pipe. The mold release agent mixing tank 2 is a sealed tank. The mold release agent mixing tank 2 is provided with an air inlet pipe 13 connected to its upper part and an external exhaust pipe 14 connected to the bottom of the mold release agent mixing tank 2.

[0034] Furthermore, a stirrer 15 is installed inside the mold release agent mixing tank 2. The stirrer 15 is mounted on the stirring shaft 17. A rotary drive 16 is installed on the sealing end cover at the top of the mold release agent mixing tank 2. The top end of the stirring shaft 17 passes through the sealing end cover and is connected to the stirring shaft 17 in a transmission manner. The stirring shaft 17 is driven to rotate by the rotary drive 16. A rotary seal is provided at the connection between the stirring shaft 17 and the sealing end cover.

[0035] Furthermore, the rotary drive component 16 is a pneumatic motor. Powered by compressed air, it can operate stably in high-temperature, humid, dusty, and corrosive environments, and its exhaust air is pollution-free, making it suitable for clean industries.

[0036] Example 3, referring to Figure 3The release agent spraying system includes the aforementioned release agent mixing device and a main air supply pipe 18. One end of the main air supply pipe 18 is connected to an air supply source, and the other end of the main air supply pipe 18 is connected to a first air supply branch pipe 19, a second air supply branch pipe 20, a third air supply branch pipe 21, and a fourth air supply branch pipe 22. The third air supply branch pipe 21 is connected to the air inlet of a pneumatic motor, and the fourth air supply branch pipe 22 is connected to an air inlet pipe 13. The exhaust pipe 14 is connected to a first liquid supply branch pipe 25 and a second liquid supply branch pipe 26. The first air supply branch pipe 19 and the first liquid supply branch pipe 25 are respectively connected to the liquid inlet and the spray air source interface of the upper mold release agent nozzle 23. The second air supply branch pipe 20 and the second liquid supply branch pipe 26 are respectively connected to the liquid inlet and the spray air source interface of the lower mold release agent nozzle 24. A fifth solenoid valve 29 for controlling the on / off of the pipeline is installed on the exhaust pipe 14. When the hydraulic proportioning pump 1 is not in operation, the diaphragm pump 11 is in the off state. At this time, the first air supply branch pipe 19, the second air supply branch pipe 20, and the fourth air supply branch pipe 22 can be controlled to be open, and the fifth solenoid valve 29 is opened to realize the opening of the external discharge pipe 14. At this time, the first air supply branch pipe 19 and the second air supply branch pipe 20 supply air to the upper mold release agent nozzle 23 and the lower mold release agent nozzle 24, respectively. The fourth air supply branch pipe 22 supplies air to the release agent mixing tank 2, so that the release agent mixing tank 2... The internal air pressure increases, and the diluted release agent in the release agent mixing tank 2 is supplied to the upper mold release agent nozzle 23 and the lower mold release agent nozzle 24 through the external discharge pipe 14, the first liquid supply branch pipe 25, and the second liquid supply branch pipe 26. The lower mold release agent nozzle is installed on the upper mold of the track link die forging and forming machine, and sprays upward at an angle, pointing towards the upper mold cavity. The upper mold release agent nozzle is installed on the lower mold of the track link die forging and forming machine, and sprays downward at an angle, pointing towards the lower mold cavity. The spraying range is large and the spraying is more uniform.

[0037] Simultaneously, the third air supply branch pipe 21 can also be connected, which supplies air to the rotary drive component 16. The rotary drive component 16 drives the stirrer 15 to rotate through the stirring shaft 17, ensuring the uniformity of the release agent dilution liquid in the release agent mixing tank 2.

[0038] This invention enables the automated addition and dilution of release agent, followed by mixing, pressurization of the mixture, and spraying onto the mold. This automated release agent addition replaces manual addition, eliminating the quality risks associated with difficult demolding.

[0039] Furthermore, the first gas supply branch pipe 19 is equipped with a first regulating valve 27 and a first solenoid valve 28 for controlling the on / off state of the pipeline; the second gas supply branch pipe 20 is equipped with a second regulating valve and a second solenoid valve for controlling the on / off state of the pipeline; the third gas supply branch pipe 21 is equipped with a third regulating valve and a third solenoid valve for controlling the on / off state of the pipeline; and the fourth gas supply branch pipe 22 is equipped with a fourth regulating valve and a fourth solenoid valve for controlling the on / off state of the pipeline.

[0040] The first air supply branch pipe 19, the second air supply branch pipe 20, the third air supply branch pipe 21, and the fourth air supply branch pipe 22 are controlled by the first solenoid valve 28, the second solenoid valve, the third solenoid valve, and the fourth solenoid valve, respectively. Through the branch pipes, a complex pneumatic circuit with multiple valves in parallel can be constructed. The solenoid valves can achieve millisecond-level switching action to ensure the immediacy of air pipe opening and closing.

[0041] Furthermore, the first gas supply branch pipe 19, the second gas supply branch pipe 20, the third gas supply branch pipe 21, and the fourth gas supply branch pipe 22 are all flexible gas pipes.

[0042] Furthermore, the first liquid supply branch pipe 25 and the second liquid supply branch pipe 26 are liquid supply hoses.

[0043] Furthermore, the upper mold release agent nozzle 23 and the lower mold release agent nozzle 24 are air atomizing fan-shaped nozzles. This results in a larger spray range and more uniform spraying.

[0044] The mold release agent proportioning device of this utility model, after the diaphragm pump and the electrically controlled valve A are opened, the diaphragm pump supplies pure water to the hydraulic proportioning pump. The hydraulic proportioning pump directly uses the water pressure flowing in the pipeline as a power source to draw the mold release agent concentrate from the mold release agent concentrate tank in a proportional and quantitative manner, and then combines it with the water as the driving force. Under the action of water pressure, the fully mixed mold release agent dilution is then transported to the mold release agent mixing tank. The added mold release agent concentrate is always directly proportional to the volume entering the proportioning pump, and is independent of changes in water pressure and water volume in the pipeline, thereby achieving precise flow ratio mixing and addition. In the state where the diaphragm pump is open, the hydraulic control check valve A is unlocked under the action of water pressure, and the air in the mold release agent mixing tank is discharged through the exhaust pipe, ensuring that the mold release agent dilution smoothly enters the mold release agent mixing tank.

[0045] The mold release agent mixing device of this utility model has an upper mold release agent nozzle installed on the lower mold of the track link forging press, which sprays downwards at an angle, pointing towards the lower mold cavity, resulting in a large spray range and more uniform spraying. Simultaneously, it can also connect to a third air supply branch pipe, which supplies air to the rotary drive component. The rotary drive component drives the agitator to rotate via a stirring shaft, ensuring the uniformity of the mold release agent dilution in the mold release agent mixing tank.

[0046] The mold release agent mixing device described in this utility model can construct a complex pneumatic circuit with multiple valves connected in parallel through air pipe branches. The solenoid valve can achieve millisecond-level switching action, ensuring the immediacy of air pipe opening and closing.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0048] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A mold release agent proportioning device, characterized in that: The device includes a hydraulic proportioning pump and a mold release agent mixing tank. The hydraulic proportioning pump is connected to a water supply pipe, a raw material pipe, and a liquid supply pipe. One end of the water supply pipe is connected to a purified water tank, and the other end of the raw material pipe is connected to the bottom of the mold release agent raw material tank. The other end of the liquid supply pipe is connected to the inside of the mold release agent mixing tank. A one-way valve B for controlling the flow direction of the mold release agent dilution is installed on the liquid supply pipe. An electrically controlled valve A and a diaphragm pump are also installed on the water supply pipe. The top of the mold release agent mixing tank is equipped with an exhaust pipe connected to its internal cavity. A hydraulically controlled one-way valve A is installed on the exhaust pipe. The hydraulically controlled one-way valve A's hydraulic control port is connected to the outlet of the diaphragm pump through a hydraulic control pipe. The mold release agent mixing tank is a sealed tank. The mold release agent mixing tank is equipped with an air inlet pipe connected to its upper part and an external exhaust pipe connected to the bottom of the mold release agent mixing tank.

2. The mold release agent proportioning device according to claim 1, characterized in that, The mold release agent mixing tank is equipped with a stirrer, which is mounted on a stirring shaft. A rotary drive is installed on the sealing end cover at the top of the mold release agent mixing tank. The top end of the stirring shaft passes through the sealing end cover and is connected to the stirring shaft for transmission. The stirring shaft is driven to rotate by the rotary drive. A rotary seal is provided at the connection between the stirring shaft and the sealing end cover.

3. The mold release agent proportioning device according to claim 2, characterized in that, The rotary drive component is a pneumatic motor.

4. A mold release agent spraying system, characterized in that, The device includes the mold release agent mixing device as described in claim 3, and further includes a main gas supply pipe. One end of the main gas supply pipe is connected to a gas supply source, and the other end of the main gas supply pipe is connected to a first gas supply branch pipe, a second gas supply branch pipe, a third gas supply branch pipe, and a fourth gas supply branch pipe. The third gas supply branch pipe is connected to the air inlet of a pneumatic motor, and the fourth gas supply branch pipe is connected to an air inlet pipe. The exhaust pipe is connected to a first liquid supply branch pipe and a second liquid supply branch pipe. The first gas supply branch pipe and the first liquid supply branch pipe are respectively connected to the liquid inlet and the spray air source interface of the upper mold mold release agent nozzle. The second gas supply branch pipe and the second liquid supply branch pipe are respectively connected to the liquid inlet and the spray air source interface of the lower mold mold release agent nozzle. A fifth solenoid valve for controlling the on / off state of the pipeline is installed on the exhaust pipe.

5. The mold release agent spraying system according to claim 4, characterized in that, The first gas supply branch pipe is equipped with a first regulating valve and a first solenoid valve for controlling the on / off state of the pipeline; the second gas supply branch pipe is equipped with a second regulating valve and a second solenoid valve for controlling the on / off state of the pipeline; the third gas supply branch pipe is equipped with a third regulating valve and a third solenoid valve for controlling the on / off state of the pipeline; and the fourth gas supply branch pipe is equipped with a fourth regulating valve and a fourth solenoid valve for controlling the on / off state of the pipeline.

6. The mold release agent spraying system according to claim 5, characterized in that, The first, second, third, and fourth gas supply branches are all flexible gas pipes.

7. The release agent spraying system according to claim 6, characterized in that, The first and second liquid supply branches are liquid supply hoses.

8. The mold release agent spraying system according to claim 7, characterized in that, The upper mold release agent nozzle and the lower mold release agent nozzle are air atomizing fan-shaped nozzles.

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