TWI542804B - 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 allowing a solenoid valve of the same size to control a larger vacuum generator, no longer being interrupted by flow demand and solenoid valves. The size of the area is limited. 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

151‧‧‧stops

16‧‧‧Sliding shaft

161‧‧‧Flexible components

162‧‧‧ solenoid valve end

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

163‧‧‧Vacuum suction end

2‧‧‧ solenoid valve

3‧‧‧ Vacuum generator

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 understanding of the creation is increased; the creation is a vacuum control valve, and a solenoid valve (2) is connected above the body (1). Fixedly, 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 communicating uses, and the plurality of channels (13) are It 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 in the first accommodating chamber. (11) an interface (111) at one end, the other end of the first accommodating chamber (11) is provided with an exhaust port (112); and the second accommodating chamber (12) is matched with the first to third figures Located on the right side of the first accommodating chamber (11), the two are communicated through the interface (111) of the first accommodating chamber (11), and the channel A (131) is connected to the second accommodating chamber (12). a side edge of the second receiving 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) a vacuum adjustment rod (15) with a front end The stopping portion (151) is disposed inside the body (1) below the second accommodating chamber (12), and the vacuum adjusting rod (15) can be controlled by adjusting the stopping portion (151). The vacuum suction rod (15) has a vacuum suction force (5) strength or opening and closing, 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 a plurality of passages (13).

The second receiving chamber (12) further includes a sliding shaft (16) for transmitting a elasticity The component (161) (in the present embodiment, the spring is taken as an example, and can be replaced with a related component having a reset function, and is not limited thereto), and is disposed inside the second housing chamber (12), and the sliding A solenoid valve end (162) is disposed above the shaft (16), and a vacuum suction end (163) is disposed below.

Please refer to Figures 4~5, when the gas (4) is fed through the air inlet (121, root According to Bernoulli's law for the continuous fluid input of the same pipeline, the cross-sectional view of the body (1) without the components inside is shown in the figure, and the direction of the gas working path (A1) can be clearly understood, and the first The chamber B (132) is disposed below the chamber (11), and the vacuum suction port (14) is caused to generate a vacuum suction (5), whereby the adsorbed article is used in a production process, which is a common design technique in the art.

However, this creation is characterized by the design of the channel B (132) in the aforementioned structure It is also mentioned that the passage B (132) is connected to the position of the vacuum adjustment rod (15), and the passage C (133) is connected to the second accommodation chamber (12), and the second accommodation chamber ( 12) The sliding shaft (16) is provided, and the sliding shaft (16) can be assisted by the vacuum suction (5) of the channel C (133) when the sliding shaft (16) is input through the gas (4). The falling speed enables the flow 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 the 3rd to 5th See, this is the second housing room. The sliding shaft (16) of (12) is subjected to the continuous action of vacuum suction; as shown by (A), the input gas (4) is just started, and the sliding shaft (16) is driven by the electromagnetic valve (2) to start to act; B) that the sliding shaft (16) has started to shift downward, at which time the gas (4) passes through the gas working path (A) to the exhaust port (112), and the passage in the first accommodation chamber (11) B (132) and the vacuum suction path (A2) generated by the channel C (133), the sliding shaft (16) is attracted downward to generate a displacement action; (C) the sliding shaft (16) is displaced downward to the first At the bottom end of the second housing chamber (12), the input gas (4) can pass completely at this time, and the elastic member (161) at this time is also compressed to the maximum.

As shown in Figure 7, with reference to Figure 3~5, this is the second housing room. The sliding shaft (16) of (12) is continuously operated after the vacuum suction is stopped; it can be seen from (D) that when the gas (4) is stopped, the vacuum suction force (5) also gradually disappears, and the elastic member ( 161) will start to reset the slide shaft (16) and pass (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.