Automatic time-delay gas supply system

Abstract

The utility model relates to the technical field of electrical control, in particular to an automatic delay gas supply system. The right side of the box body is provided with an air inlet, the left side of the box body is provided with an air outlet, a stainless steel self-control valve is arranged between the air inlet and the air outlet, the upper end of the stainless steel self-control valve is connected with a driving electromagnetic valve, the upper end of the driving electromagnetic valve is provided with a relay group, and the left side and the top of the relay group are respectively provided with a switching power supply and a delay timer; preferably, the upper end of the air outlet is provided with a trigger switch interface, and the trigger switch interface is electrically connected with the delay timer; preferably, the box body is provided with a box door, a power indicating lamp is arranged in the middle of the box door, and an audible and visual alarm is arranged at the upper end of the power indicating lamp. The gas supply time can be accurately set through the delay timer, energy waste is reduced, and sound-light alarm reminding can be given out.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical control, in particular to an automatic delayed air supply system. Background Art

[0002] After the existing hard resin sand mold is made, it needs to be blown hard manually. The blowing time and flow rate are controlled by the operator. If the blowing time is too short, the effect is not good and the strength requirements cannot be met. If the blowing time is too long, the gas source is wasted and the cost of purchasing gas is increased. In addition, during the blowing process of a sand mold, it is inconvenient for personnel to leave the site, and it is necessary to observe the time to close the valve in time and transfer to another sand mold; the patent with announcement number CN214425678U discloses a forced air supply system, which uses a pneumatic display to monitor the working state of forced air supply, and the gas-electric converter is used to remind the PLC controller and the manual valve not to act at the same time, but it lacks a direct device with a reminder function; and the existing air supply pipeline valves mostly use ordinary material manual valves, which will not seal tightly if the number of switches is too many, and carbon dioxide will corrode the seals, and leakage often occurs, which also causes unnecessary waste, because the pipeline pressure is basically stable. If the pipeline or valve is not sealed tightly and leaks, it will directly affect the actual air supply pressure and flow rate of the sand mold, resulting in uneven hardness of the sand mold even if the blowing time is the same, affecting the quality of the later process. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and to provide an automatic delayed air supply system which can automatically delay air supply, automatically close valves to avoid waste, and issue an alarm to remind.

[0004] The technical solution of the utility model is:

[0005] An automatic delayed air supply system comprises a box body, wherein an air inlet is arranged on the right side of the box body, an air outlet is arranged on the left side of the box body, a stainless steel automatic control valve is arranged between the air inlet and the air outlet, a driving solenoid valve is connected to the upper end of the stainless steel automatic control valve, a relay group is arranged on the upper end of the driving solenoid valve, and a switch power supply and a delay timer are respectively arranged on the left side and the top of the relay group.

[0006] Preferably, a trigger switch interface is provided at the upper end of the air outlet, and the trigger switch interface is electrically connected to the delay timer.

[0007] Preferably, the box body is provided with a box door, a power indicator light is provided in the middle of the box door, and an audible and visual alarm is provided on the upper end of the power indicator light.

[0008] Preferably, the switching power supply is connected to an AC 220V single-phase power supply.

[0009] Preferably, the stainless steel automatic control valve body is made of 316 stainless steel.

[0010] Preferably, a driving air source is provided at the bottom end of the air inlet, and the driving air source is electrically connected to the driving solenoid valve.

[0011] Preferably, the air inlet and the air outlet are connected to an air inlet pipe and an air outlet pipe respectively.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model can realize automation and precise control of gas supply, accurately set gas supply time through delay timer, and reduce energy waste; the use of stainless steel automatic control valve ensures the stability and durability of the system, and 316 stainless steel material further enhances the corrosion resistance of the valve; the design of trigger switch interface makes operation more convenient, while the power indicator light and sound and light alarm provide intuitive working status feedback, enhancing the safety and reliability of the system; the whole system adopts AC 220V single-phase power supply, which is easy to access the existing power grid, improving the versatility and convenience of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a side view of the utility model.

[0017] Figure 3 It is a circuit schematic diagram of the utility model.

[0018] In the figure: 1. Box body; 2. Air inlet; 3. Air outlet; 4. Stainless steel automatic control valve; 5. Driving solenoid valve; 6. Relay group; 7. Switching power supply; 8. Delay timer; 9. Trigger switch interface; 10. Power indicator light; 11. Sound and light alarm; 12. Driving air source; 13. Box door. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0020] Example

[0021] like Figure 1-3 As shown, this embodiment provides an automatic delayed air supply system, including a box body 1, an air inlet 2 is provided on the right side of the box body 1, an air outlet 3 is provided on the left side of the box body 1, a stainless steel automatic control valve 4 is provided between the air inlet 2 and the air outlet 3, a driving solenoid valve 5 is connected to the upper end of the stainless steel automatic control valve 4, a relay group 6 is provided on the upper end of the driving solenoid valve 5, and a switching power supply 7 and a delay timer 8 are respectively provided on the left side and the top of the relay group 6.

[0022] Preferably, a trigger switch interface 9 is provided at the upper end of the gas outlet 3, and the trigger switch interface 9 is electrically connected to the delay timer 8. The delay timer 8 is set with multiple delay parameters to cope with hard resin sand molds of different volumes and different structural designs.

[0023] Preferably, the box body 1 is provided with a box door 13, a power indicator light 10 is provided in the middle of the box door 13, and an audible and visual alarm 11 is provided at the upper end of the power indicator light 10. By providing the audible and visual alarm 11, after a sand mold is blown, the audible and visual alarm 11 will sound an audible and visual alarm to remind the staff to perform subsequent operations.

[0024] Preferably, the switching power supply 7 is connected to an AC 220V single-phase power supply.

[0025] Preferably, the valve body of the stainless steel automatic control valve 4 is made of 316 stainless steel. By using 316 stainless steel, the automatic control valve is durable and not prone to air leakage.

[0026] Preferably, a driving air source 12 is provided at the bottom end of the air inlet 2 , and the driving air source 12 is electrically connected to the driving solenoid valve 5 .

[0027] Preferably, the air inlet 2 and the air outlet 3 are connected to an air inlet pipe and an air outlet pipe respectively.

[0028] Working principle: When in use, the system is powered by AC 220V single-phase power supply, and a switch-type electronic transformer is configured to control the system power supply voltage within the DC24V safe voltage range. According to the different volume and structural design of each sand mold, the delayed gas supply time is reasonably set according to past experience; the system introduces gas through the air inlet 2 on the right side of the box 1. When gas supply is required, the delay timer 8 is started by triggering the switch interface 9. The delay timer 8 controls the relay group 6 and then drives the solenoid valve 5 to operate, thereby opening the stainless steel automatic control valve 4. The stainless steel automatic control valve 4 is made of 316 stainless steel to ensure corrosion resistance. Within the time set by the delay timer 8, the gas flows out from the outlet 3 on the left side of the box 1 through the automatic control valve. The system is equipped with an audible and visual alarm 11 and a power indicator light 10 to provide intuitive feedback on the working status. The system supplies power to the entire system through a switch power supply 7. In addition, a driving gas source 12 is provided at the bottom of the air inlet 2, which is electrically connected to the driving solenoid valve 5 to ensure that the solenoid valve can operate reliably. The entire system realizes the automation and delay control of gas supply.

[0029] Although the utility model is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the utility model is not limited thereto. Without departing from the spirit and essence of the utility model, ordinary technicians in the field can make various equivalent modifications or substitutions to the embodiments of the utility model, and these modifications or substitutions should be within the scope of the utility model / any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. An automatic delayed air supply system, comprising a box (1), characterized in that: The box body (1) is provided with an air inlet (2) on the right side, and an air outlet (3) on the left side. A stainless steel automatic control valve (4) is provided between the air inlet (2) and the air outlet (3). The upper end of the stainless steel automatic control valve (4) is connected to a driving electromagnetic valve (5). The upper end of the driving electromagnetic valve (5) is provided with a relay group (6). The left side and the top of the relay group (6) are provided with a switching power supply (7) and a delay timer (8), respectively. The box body (1) is provided with a box door (13). A power indicator light (10) is provided in the middle of the box door (13). An audible and visual alarm (11) is provided at the upper end of the power indicator light (10).

2. The automatic delayed air supply system according to claim 1, characterized in that: A trigger switch interface (9) is provided at the upper end of the air outlet (3), and the trigger switch interface (9) is electrically connected to the delay timer (8).

3. The automatic delayed air supply system according to claim 1, characterized in that: The switch power supply (7) is connected to an AC 220V single-phase power supply.

4. The automatic delayed air supply system according to claim 1, characterized in that: The valve body of the stainless steel automatic control valve (4) is made of 316 stainless steel.

5. The automatic delayed air supply system according to claim 1, characterized in that: A driving air source (12) is provided at the bottom end of the air inlet (2), and the driving air source (12) is electrically connected to the driving electromagnetic valve (5).

6. The automatic delayed air supply system according to claim 1, characterized in that: The air inlet (2) and the air outlet (3) are connected to an air inlet pipe and an air outlet pipe respectively.

Images