TWM499503U - Vacuum control valve - Google Patents

Description

Vacuum control valve

The present invention relates to a vacuum control valve, which mainly uses a solenoid valve and a vacuum generator to combine, and then uses the suction path generated by the internal plurality of channels to guide the vacuum suction inside the vacuum generator to the sliding shaft to make the slip The shaft can smoothly reach the maximum displacement and deliver all the supply pressure to the vacuum generator. This sucking action can reduce the consumption of the supply pressure, make the gas resources fully utilized, and reduce the waste of resources.

Generally, in commercially available products, as shown in Fig. 8, the solenoid valve (9) is usually used in conjunction with a vacuum generator (91) (using a positive pressure source to generate a negative pressure) when the gas is sourced at the intake port ( 93) After input, the pressure is transmitted through the guide hole (94) provided in the body (95), and the movable iron switch in the solenoid valve (9) is used to supply pressure to the vacuum generator (91), and at the vacuum suction port. (92) Vacuum is generated, which is a common technology in commercially available products; the vacuum suction port (92) is used for the adsorption and handling of various materials by the suction cup. The common feature is that the required pumping amount is small and the vacuum requirement is not high. And work intermittently.

When the required flow rate of the vacuum generator (91) is increased, due to the effective sectional area of the solenoid valve (9), it is necessary to replace the solenoid valve (9) with a larger effective sectional area in order to achieve the flow demand. However, the disadvantage is that the solenoid valve (9) will be replaced by a larger volume, which also increases the cost of the product.

For the conventional solenoid valve and vacuum generator assembly, the known flow rate needs to be matched with the effective sectional area of the solenoid valve to meet the purpose of improving the flow rate of the vacuum generator. Therefore, if there is a demand, the body can be effectively broken through the body. A larger solenoid valve is connected to achieve its purpose; The vacuum generator of the present invention has the advantages of being able to allow a solenoid valve of the same size to control a larger vacuum generator, and is no longer limited by the flow demand and the effective sectional area of the solenoid valve. The main reason is the design technology of the sliding shaft. When the electromagnetic valve is excited, the pressure is supplied to the sliding shaft, and the thrust is generated by the circular area of the sliding shaft on the end of the electromagnetic valve, so that the sliding shaft overcomes the spring force preset by the spring. Displacement action; when the sliding shaft is opened, the supply pressure inside the vacuum generator is gradually increased by 0, and the generated vacuum degree (negative pressure) is gradually increased, by sucking back the circle acting on the vacuum suction end of the sliding shaft The area creates a vacuum suction that immediately assists the slide shaft to continue to advance until the maximum stroke of the slide shaft also produces maximum vacuum.

The time required for the creation of the solenoid valve switch can be designed by the sliding shaft to match the vacuum suction, and the required time is also reduced in comparison with the conventional structure, and the vacuum generator is obtained with the aid of the vacuum suction. The supply pressure has almost no loss, which is equivalent to the supply pressure of the solenoid valve, and the aforementioned advantages can be achieved.

[This creation]

1‧‧‧ Ontology

11‧‧‧First accommodation room

111‧‧‧ interface

112‧‧‧Exhaust port

12‧‧‧Second accommodation room

121‧‧‧air inlet

13‧‧‧ channel

151‧‧‧stops

16‧‧‧Sliding shaft

161‧‧‧Flexible components

162‧‧‧ solenoid valve end

163‧‧‧Vacuum suction end

2‧‧‧ solenoid valve

3‧‧‧Vacuum generator

131‧‧‧Channel A

132‧‧‧Channel B

133‧‧‧Channel C

14‧‧‧Vacuum suction port

15‧‧‧ Vacuum adjustment lever

4‧‧‧ gas

5‧‧‧Vacuum suction

A1‧‧‧ gas operation path

A2‧‧‧ Vacuum suction path

[Practical Technology]

9‧‧‧ solenoid valve

91‧‧‧Vacuum generator

92‧‧‧Vacuum suction port

93‧‧‧air inlet

94‧‧‧guide hole

95‧‧‧ Ontology

The first picture is a perspective view of the creation.

Figure 2 is a three-dimensional system diagram of the creation.

Figure 3 is a schematic cross-sectional view of the creation.

Figure 4 is a schematic diagram of the gas operation and vacuum suction path of the present creation.

Figure 5 is a partial cross-sectional view of the channel of the creation.

Figure 6 is a partial schematic view of the sliding shaft of the present creation being vacuumed down.

Figure 7 is a partial schematic view of the sliding axis return positioning of the present creation.

Figure 8 is a schematic diagram of a prior art technique.

Generally, according to the present creation, the best feasible embodiment, and with the detailed description of the drawing, the knowledge of the creation is increased; the creation is a vacuum control valve, and a solenoid valve (2) is connected above the body (1). The body (1) is internally provided with a first accommodating chamber (11) and a second accommodating chamber (12), and a plurality of channels (13) for connecting the communication purposes, and the plurality of channels (13) The system is composed of a group A (131), a channel B (132), and a channel C (133), and a vacuum generator (3) is disposed in the first accommodating chamber (11), and the position is located at the first accommodating An outlet (111) at one end of the chamber (11), and an exhaust port (112) at the other end of the first receiving chamber (11); the second housing chamber (12) is shown in conjunction with Figures 1-3. ) is located on the right side of the first accommodating chamber (11), the two are through the interface (111) of the first accommodating chamber (11), and the channel A (131) is connected to the second accommodating chamber (12) The side edge of the second accommodating chamber (12) is further connected with an air inlet (121), and a vacuum suction port (14) is disposed under the body (1), and the vacuum suction port ( 14) through the channel B (132) provided inside the body (1) is connected; a vacuum adjustment rod (15) is provided with a stop portion (151) at the front end thereof, and is disposed at the inside of the body (1) Below the second accommodation chamber (12), the vacuum adjustment rod (15) can be controlled by adjusting the stopper (151) The vacuum suction (5) of the vacuum adjustment rod (15) is used to open or close the vacuum, and a channel C (133) is disposed under the second accommodation chamber (12) for communicating with the vacuum adjustment rod (15). The channel B (132) is also connected to the position of the true air conditioning adjusting rod (15). From the above structure, the first housing chamber (11) and the second housing chamber (12) can be known. The vacuum suction port (14) and the vacuum adjustment rod (15) are connected to each other through the plurality of passages (13).

The second accommodating chamber (12) further includes a sliding shaft (16) passing through an elastic member (161) (in the present embodiment, the spring is taken as an example, and can be replaced with a related member having a reset function, and The upper part of the sliding shaft (16) is provided with a solenoid valve end (162) and a vacuum suction end (163) is disposed below the first housing chamber (12).

Please refer to Figure 4~5. When the gas (4) is input through the air inlet (121, according to Bernoulli's law, continuous fluid input in the same pipeline, the figure is not installed inside the body (1). The cross-sectional view of each component makes it clearer to understand the direction of the gas working path (A1), while the first housing chamber (11) is below the channel B (132), and the vacuum suction port (14) generates vacuum suction (5). ), in order to use the adsorbed articles in the production process, which is a common design technique in the field.

However, the present feature is characterized by the design of the channel B (132), which is also mentioned in the foregoing structural description, the channel B (132) is connected to the position of the vacuum adjustment rod (15), and the channel C (133) Connecting the second accommodating chamber (12), and the sliding shaft (16) disposed in the second accommodating chamber (12), the sliding shaft (16) due to the vacuum suction (5) of the passage C (133) ) can assist the slip when the gas (4) is input through The falling speed of the shaft (16) enables the flow rate of the output gas (4) to reach the expected output value faster, and can reduce the energy usage of the solenoid valve (2); as shown in Fig. 6, and supplemented by Referring to Fig. 3~5, this is the continuous action of the sliding shaft (16) of the second accommodating chamber (12) subjected to vacuum suction; as shown by (A), the input gas (4) is just started, the sliding shaft (16) ) is activated by the solenoid valve (2); (B) the sliding shaft (16) has begun to move downward, and the gas (4) passes through the gas working path (A) to the exhaust port (112). The vacuum absorbing path (A2) generated by the channel B (132) and the channel C (133) in the first accommodating chamber (11) attracts the sliding shaft (16) downward to generate a displacement action; (C) The sliding shaft (16) is displaced downward to the bottom end of the second accommodating chamber (12), at which time the input gas (4) can pass completely, and the elastic member (161) at this time is also compressed to the maximum.

As shown in Fig. 7, it is mainly referred to in Fig. 3 to Fig. 5, which is the reset continuous operation of the sliding shaft (16) of the second housing chamber (12) after the vacuum suction is stopped; It can be seen that when the gas (4) input is stopped, the vacuum suction force (5) will gradually disappear, and the elastic member (161) will start to bring the sliding shaft (16) to reset, via (E) (F) to the initial state. .

However, the circular area of the solenoid valve end (162) created above the sliding shaft (16) needs to be larger than the circular area of the vacuum suction end (163) below the sliding shaft (16), if the two are equal or smaller than the area When the sliding shaft (16) is reset, the vacuum suction force (5) is greater than the returning force of the elastic member (161), and a fault condition occurs (for example, the slide shaft cannot be reset, the solenoid valve cannot be closed, etc.).

1‧‧‧ Ontology

11‧‧‧First accommodation room

111‧‧‧ interface

112‧‧‧Exhaust port

12‧‧‧Second accommodation room

121‧‧‧air inlet

13‧‧‧ channel

131‧‧‧Channel A

132‧‧‧Channel B

133‧‧‧Channel C

14‧‧‧Vacuum suction port

15‧‧‧ Vacuum adjustment lever

151‧‧‧stops

16‧‧‧Sliding shaft

161‧‧‧Flexible components

162‧‧‧ solenoid valve end

163‧‧‧Vacuum suction end

2‧‧‧ solenoid valve

3‧‧‧Vacuum generator

Claims (3)

A vacuum control valve includes: a body, a solenoid valve is fixed on the upper portion, and the first accommodating chamber and the second accommodating chamber are disposed inside the body, and a plurality of channels for connecting and communicating, and the first accommodating The chamber is provided with an interface of a vacuum generator at one end of the first accommodating chamber, and the other end of the first accommodating chamber is provided with an exhaust port, and the side edge of the second accommodating chamber is matched with the channel A, corresponding to the An interface of one end of the accommodating chamber is connected, and a side of the second accommodating chamber is further connected with an air inlet. The bottom of the body is further provided with a vacuum suction port. The vacuum adjusting rod cooperates with the channel C and the The first accommodating chamber and the vacuum suction port are connected to each other; a sliding shaft is disposed in the second accommodating chamber with the elastic member, and the lower edge of the sliding shaft cooperates with the passage to communicate with a vacuum adjusting rod; When the air inlet enters, the sliding axial direction is displaced, and the gas is sequentially outputted through the second accommodating chamber and the first accommodating chamber, and is output by the venting port; and the first accommodating when the gas passes through the body The chamber generates a vacuum sucking effect through the passage B, so that the second housing chamber is borrowed The channel C is connected to the channel B, so that the sliding shaft is simultaneously subjected to the vacuum sucking action, and the downward displacement to the bottom portion, thereby reducing the displacement time of the sliding shaft and allowing the gas to supply the pressure, thereby reducing the loss through the vacuum. Generator to produce maximum vacuum. According to the vacuum control valve of claim 1, wherein the vacuum adjusting rod further comprises: a stopping portion capable of controlling the suction strength generated by the vacuum sucking action or opening and closing by adjusting the stopping portion . The vacuum control valve according to the first aspect of the patent application, wherein the sliding shaft further comprises: a solenoid valve end disposed above the sliding shaft; and a vacuum suction end disposed under the sliding shaft; the solenoid valve end being greater than The area of the vacuum suction end is used to protect the sliding shaft from the suction force of the vacuum sucking action, and the sliding shaft cannot be automatically reset.