Blasting type integrated vacuum generator

Abstract

The utility model discloses a blasting type integrated vacuum generator, which relates to the technical field of mechanical automation and comprises a main body component, a first electromagnetic valve and a second electromagnetic valve, and the first electromagnetic valve and the second electromagnetic valve are mounted on the upper portion of the main body component. The air channels are divided into air inlet ends, flow dividing parts, negative pressure forming parts, stored air conveying parts and blasting parts. According to the blasting type integrated vacuum generator, by optimizing an air channel structure in the vacuum generator and additionally designing an air pressure storage structure, preparation can be made for follow-up formation of positive pressure while negative pressure is formed, when the negative pressure effect stops, high-pressure air stored in the early stage is utilized, positive pressure can be achieved immediately, and the negative pressure effect is achieved. The positive pressure air channel does not need to be additionally designed, so that the air channel structure in an existing vacuum generator is simplified, the manufacturing cost of the vacuum generator is reduced, and meanwhile the later maintenance cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical automation, and particularly relates to a blasting integrated vacuum generator. Background Technique

[0002] When the existing vacuum generators form positive pressure and negative pressure, a dual-airway independent control mode is generally adopted. Specifically, that is, two completely independent airway systems are required. One is dedicated to generating negative pressure to adsorb workpieces, and the other is used to generate positive pressure to realize the release or position adjustment of workpieces. Although this design can meet the expected functional requirements, its disadvantages are also obvious:

[0003] 1. Complex internal structure: The dual-airway independent control requires a complex airway layout and switching mechanism inside the vacuum generator. This not only increases the design difficulty but also greatly improves the manufacturing cost. At the same time, the complex internal structure also increases the possibility of failures and reduces the reliability and service life of the equipment.

[0004] 2. High maintenance cost: Due to the complexity of the internal structure, once a failure occurs, the maintenance difficulty and cost are relatively high. Especially when in-depth inspection or replacement of internal parts is required, professional technicians and long downtime are often needed, which poses a significant challenge to the production efficiency and economic benefits of enterprises. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a blasting integrated vacuum generator, which solves the problems raised in the above background technique.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: It includes a main body component and a first solenoid valve and a second solenoid valve installed on the upper part of the main body component. It is characterized in that several airways and a gas storage component are arranged inside the main body component. The several airways are divided into an air inlet end, a shunt part, a negative pressure formation part, a gas storage and transportation part, and a blasting part. Through the cooperation with the first solenoid valve and the second solenoid valve, the air inlet end can respectively transport gas to the shunt part, the negative pressure formation part, and the gas storage and transportation part. The first solenoid valve controls the gas to form negative pressure, and the second solenoid valve controls the gas to be infused into the gas storage component. When the first solenoid valve is closed to stop the negative pressure, and the second solenoid valve is closed, the positive pressure formed by the reverse airflow of the gas storage component breaks the vacuum.

[0007] Furthermore, a first control cavity is opened inside the first solenoid valve, and a first piston is movably arranged inside the first control cavity. A second control cavity is opened inside the second solenoid valve, and a second piston and a third piston are respectively movably arranged inside the second control cavity. Several air guide holes are opened inside the third piston.

[0008] Furthermore, the intake end includes an air inlet and a main intake duct, and the air inlet is in communication with the main intake duct.

[0009] Furthermore, the shunt portion includes a first shunt airway and a second shunt airway. The first shunt airway is in communication with the main intake duct and the first control chamber, and the second shunt airway is in communication with the main intake duct and the second control chamber.

[0010] Furthermore, the negative pressure forming portion includes a first air outlet passage, a first air chamber, a return airway, a second air chamber, and an air suction port that are in communication with each other. The first air outlet passage is in communication with the first control chamber, and the inner diameter of the first air chamber is smaller than the inner diameters of the first air outlet passage and the return airway.

[0011] Furthermore, a muffler is connected to the air outlet end of the first air chamber.

[0012] Furthermore, the air storage and delivery portion includes an air storage and delivery airway that is in communication with the second control chamber and is connected to an air storage component.

[0013] Furthermore, the blasting portion includes a blasting airway that is in communication with the second control chamber and the first air chamber, and the position of the blasting airway is opposite to that of the return airway.

[0014] The present utility model provides a blasting type integrated vacuum generator. Compared with the prior art, it has the following beneficial effects:

[0015] This blasting type integrated vacuum generator optimizes the airway structure in the vacuum generator and additionally designs a structure for storing air pressure. While forming negative pressure, it can also prepare for subsequent formation of positive pressure. When the negative pressure effect stops, the high-pressure gas stored previously can be immediately changed into positive pressure without the need to additionally design a positive pressure airway, thus simplifying the airway structure inside the existing vacuum generator, reducing the manufacturing cost of the vacuum generator, and also reducing the subsequent maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a half-sectional view of the present utility model;

[0018] Figure 3 is a schematic principle air path diagram of negative pressure formation and air storage in the present utility model;

[0019] Figure 4 is a schematic principle air path diagram of blasting in the present utility model.

[0020] Figure 5Schematic diagram of the air flow channel of the second solenoid valve in the present utility model.

[0021] In the figure: 1. Main body component; 11. Air inlet; 12. Main air inlet duct; 13. First shunt air duct; 14. Second shunt air duct; 15. First air outlet duct; 16. First air cavity; 17. Return air duct; 18. Second air cavity; 19. Suction port; 110. Air storage and transportation air duct; 111. Blasting air duct; 112. Silencer; 2. First solenoid valve; 21. First control cavity; 22. First piston; 3. Second solenoid valve; 31. Second control cavity; 32. Second piston; 33. Third piston; 34. Air guide holes; 4. Air storage component. Specific embodiments

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figure 1 、 2 The present utility model provides a technical solution: a blasting type integrated vacuum generator, which is composed of a main body component 1, a first solenoid valve 2, a second solenoid valve 3 and an air storage component 4. Among them,

[0024] The main body component 1 is composed of an air inlet 11, a main air inlet duct 12, a first shunt air duct 13, a second shunt air duct 14, a first air outlet duct 15, a first air cavity 16, a return air duct 17, a second air cavity 18, a suction port 19, an air storage and transportation air duct 110, a blasting air duct 111 and a silencer 112. The first solenoid valve 2 is composed of a first control cavity 21 and a first piston 22. The second solenoid valve 3 is composed of a second control cavity 31, a second piston 32, a third piston 33 and a plurality of air guide holes 34. The plurality of air guide holes 34 are opened inside the third piston 33 and are annularly distributed around the piston rod;

[0025] Specifically, the air inlet 11 communicates with the main air inlet passage 12. The first shunt air passage 13 communicates with the main air inlet passage 12 and the first control chamber 21. The second shunt air passage 14 communicates with the main air inlet passage 12 and the second control chamber 31. The first air outlet passage 15, the air storage and delivery passage 110, and the blasting air passage 111 all communicate with the first control chamber 21. And the blasting air passage 111 is located between the first air outlet passage 15 and the air storage and delivery passage 110. The first air outlet passage 15 and the blasting air passage 111 jointly communicate with the first air chamber 16. The first air chamber 16, the return air passage 17, the second air chamber 18, and the air suction port 19 are connected in sequence. The positions of the blasting air passage 111 and the return air passage 17 are opposite to each other. The air storage and delivery passage 110 is connected to the air storage component 4. The air outlet end of the first air chamber 16 is connected with a muffler 112, and the muffler 112 can eliminate the noise of the discharged gas. The inner diameter of the first air chamber 16 is smaller than the inner diameters of the first air outlet passage 15 and the return air passage 17. In this way, the flow rate of the air flow inside the first air chamber 16 will be greater than that of the first air outlet passage 15 and the return air passage 17. Therefore, the pressure inside the first air chamber 16 is less than that of the return air passage 17.

[0026] When the vacuum generator is working, it is divided into two processes: negative pressure adsorption air storage and blasting. Specifically,

[0027] When in the state of negative pressure adsorption air storage, as shown in Figure 3 the figure, first of all, the first piston 22 does not block the first shunt air passage 13 and the first air outlet passage 15, but the third piston 33 needs to block the blasting air passage 111. Airflow is injected into the air inlet 11. The airflow enters the main air inlet passage 12, and then enters the interiors of the first control chamber 21 and the second control chamber 31 through the first shunt air passage 13 and the second shunt air passage 14 respectively. The airflow located in the first control chamber 21 will enter the first air chamber 16 through the first air outlet passage 15, and then the first air chamber 16 is directly discharged outside through the muffler 112. During this process, because the inner diameter of the first air chamber 16 is smaller than the inner diameters of the first air outlet passage 15 and the return air passage 17, that is to say, the flow rate of the air flow inside the first air chamber 16 will be greater than that of the first air outlet passage 15 and the return air passage 17. The final effect is that the pressure inside the first air chamber 16 is less than that of the return air passage 17. Therefore, the air in the return air passage 17 and the second air chamber 18 will flow towards the first air chamber 16 under the action of the pressure difference and be discharged together with the original gas in the first air chamber 16. At this time, the return air passage 17, the second air chamber 18, and the air suction port 19 are all in a negative pressure state, so objects can be adsorbed. The airflow located in the second control chamber 31, because the blasting air passage 111 is blocked, so the airflow can only flow through a plurality of air guide holes 34 towards the air storage and delivery passage 110, and is finally stored in the air storage component 4. The internal air pressure of the air storage component 4 will increase until it increases to the same as the inlet air pressure and remains in a high-pressure state;

[0028] It should be noted that the gas storage component 4 can be a rubber tube or a metal tube, and different lengths can be set according to needs, so that the amount of gas stored and the pressure inside are different. In addition, in order to prevent the gas storage component 4 from exploding, a pressure relief valve can be set at the rear end, which automatically releases the pressure when the pressure is too high. These are all existing technologies and are therefore not shown in the diagram.

[0029] When it is in the explosion state, the vacuum is broken. Figure 4 As shown, first, when the first solenoid valve is closed, the negative pressure stops because the first piston 22 blocks the first branch airway 13.

[0030] The second piston 32 blocks the second branch air channel 14, and the third piston 33 is located between the gas storage and delivery air channel 110 and the blasting air channel 111. As mentioned above, the interior of the gas storage component 4 is in a high-pressure state. Therefore, when the gas storage and delivery air channel 110 and the blasting air channel 111 are connected through the air guide hole 34, the high-pressure gas will instantly enter the blasting air channel 111. Because the blasting air channel 111 and the return air channel 17 are arranged opposite to each other, the high-pressure airflow will directly rush into the return air channel 17 and then flow into the second air cavity 18, so that the originally negative pressure of the second air cavity 18 instantly becomes positive pressure, thereby separating from the air intake port 19. That is to say, the airflow channel of the blasting air channel 111 and the return air channel 17 are designed to face each other, so that the airflow forms a straight line.

[0031] Figure 5 This is the air hole design diagram of the second solenoid valve 3 of this patent, among which port A, port R and port P are all ventilation holes. When the solenoid valve is started, port A is connected to port P, and when the solenoid valve is closed, port A is connected to port R. The design of these airways is applied in this patent, but the reflux design principle of the airway can be diversified, so the working principle is the core technology of this patent.

Claims

1. An explosive integrated vacuum generator, comprising a main body component (1) and a first solenoid valve (2) and a second solenoid valve (3) mounted on the upper part of the main body component (1), characterized in that: A plurality of air passages and a gas storage component (4) are arranged inside the main body component (1). The plurality of air passages are divided into an air inlet end, a flow dividing part, a negative pressure forming part, a gas storage and delivery part, and a blasting part. By cooperating with the first solenoid valve (2) and the second solenoid valve (3), the air inlet end can deliver gas to the flow dividing part, the negative pressure forming part, and the gas storage and delivery part respectively. The first solenoid valve (2) controls the gas to form a negative pressure, and the second solenoid valve (3) controls the gas to be infused into the gas storage component (4). The first solenoid valve (2) is closed to stop the negative pressure, and the second solenoid valve (3) is closed to form a positive pressure by the reverse airflow of the gas storage component (4) to break the vacuum.

2. The explosion-type integrated vacuum generator according to claim 1, characterized in that: A first control chamber (21) is provided inside the first solenoid valve (2), a first piston (22) is movably arranged inside the first control chamber (21), a second control chamber (31) is provided inside the second solenoid valve (3), a second piston (32) and a third piston (33) are movably arranged inside the second control chamber (31), and a plurality of air guide holes (34) are provided inside the third piston (33).

3. The explosion-type integrated vacuum generator according to claim 1, characterized in that: The air intake end comprises an air intake port (11) and a main air intake passage (12), and the air intake port (11) and the main air intake passage (12) are connected.

4. The explosion-type integrated vacuum generator according to claim 1, characterized in that: The diversion part comprises a first diversion air channel (13) and a second diversion air channel (14); the first diversion air channel (13) is connected to the main air intake channel (12) and the first control chamber (21); and the second diversion air channel (14) is connected to the main air intake channel (12) and the second control chamber (31).

5. The explosion-type integrated vacuum generator according to claim 1, characterized in that: The negative pressure forming part comprises a first air outlet (15), a first air cavity (16), a return air duct (17), a second air cavity (18) and an air inlet (19) which are connected to each other; the first air outlet (15) is connected to a first control cavity (21); and the inner diameter of the first air cavity (16) is smaller than the inner diameters of the first air outlet (15) and the return air duct (17).

6. The explosion-type integrated vacuum generator according to claim 5, characterized in that: The air outlet end of the first air cavity (16) is connected to a muffler (112).

7. The explosion-type integrated vacuum generator according to claim 1, characterized in that: The gas storage and delivery part comprises a gas storage and delivery airway (110), the gas storage and delivery airway (110) is in communication with the second control chamber (31), and the gas storage and delivery airway (110) is connected to the gas storage component (4).

8. The explosion-type integrated vacuum generator according to claim 1, characterized in that: The blasting part comprises a blasting air channel (111), wherein the blasting air channel (111) is in communication with the second control chamber (31) and the first air chamber (16), and the positions of the blasting air channel (111) and the return air channel (17) are opposite to each other.

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