CN101988592B - Pneumatic closing device for material port - Google Patents

Abstract

The present invention discloses a pneumatic sealing device for a material inlet, including a supporting mechanism, a moving mechanism and a sealing mechanism. The supporting mechanism includes a supporting frame and a slide groove, which are used to support the entire device and guide a slide plate; the moving mechanism includes a first cylinder and a slide plate, the slide plate is placed in the slide groove of the supporting mechanism, the slide plate is connected to the output rod of the first cylinder, the first cylinder drives the slide plate to slide in the slide groove, so that the sealing mechanism reaches the material inlet; the sealing mechanism includes a second cylinder, a pressure plate and a sealing member, the pressure plate is connected to the output rod of the second cylinder, the sealing member is embedded in the pressure plate, and the second cylinder drives the pressure plate to open or close the material inlet. The present invention uses a cylinder as a power source and can be used in occasions that require strict explosion-proof; a double cylinder is used to sequentially realize the closing and sealing actions of the device, so that it has high flexibility and small restrictions on the structural size; a seal with a clamping force is used to achieve high vacuum or high pressure sealing of the container; the entire device is easy to install, highly reliable and economical.

Description

A pneumatic sealing device for material opening

technical field

The invention belongs to the field of container sealing, and in particular relates to a pneumatic sealing device for a material opening, which uses a cylinder as a sealing power source.

Background technique

The material opening sealing device is used to seal the material opening after the container has completed operations such as feeding or unloading. It is suitable for occasions where the container material opening needs to be reliably and frequently opened and closed. It is an indispensable device for large containers. At present, there is no mature general-purpose sealing device for the material opening in the market. Pipe sealing valves are mainly used for sealing the material opening of the container. Sealed valves are generally round) and other issues. With the development and application of non-standard parts, there are more and more types of material openings designed for special purposes, and the sealing of material openings has become a major problem in the fields of material storage, mixing, and mixing. At present, there is no sealing device that meets the characteristics of the product on the market, and redesigning the sealing device for each sealing device is not economical and disperses the investment in the product itself. At the same time, in some dangerous places, in order to ensure safety, the use of manual sealing devices is limited, and it is necessary to realize the isolation of the operation site and the job site through remote control.

Therefore, there is an urgent need for a closed device that can achieve strict explosion protection, is easy to install, has strong adaptability to the feed port, can be used in high vacuum, and can realize remote control.

Contents of the invention

The object of the present invention is to provide a pneumatic sealing device for the material opening, which has the characteristics of small size, easy installation, strict explosion-proof, strong adaptability to the material opening, and can be used in high vacuum.

The utility model relates to a material opening pneumatic sealing device, which includes a supporting mechanism, a moving mechanism and a sealing mechanism. The support mechanism is used to support the moving mechanism, and the moving mechanism is provided with a sealing mechanism; the moving mechanism includes a first cylinder and a slide plate, the slide plate is placed in the chute of the support mechanism, the slide plate is connected to the output rod of the first cylinder, and the first cylinder drives The slide plate slides in the chute, so that the sealing mechanism reaches the material port; the sealing mechanism includes a second cylinder, a pressure plate and a seal, the pressure plate is connected to the output rod of the second cylinder, the seal is embedded in the pressure plate, and the second cylinder drives the pressure plate to open Or close the feed port.

The technical effect of the present invention is embodied in that the device of the present invention uses a cylinder as a power source to realize the opening, closing and sealing of the material opening. The whole device does not have any live equipment, and can be used in occasions that require strict explosion protection; the double cylinders are used to realize the opening and closing and sealing actions of the device in sequence, making it highly flexible and limiting the size of the structure; The container is sealed under high vacuum or high pressure; the functions of each part are relatively independent and clear, and its flexibility is large, and there is basically no limit to the shape and size of the sealing port; the opening and closing of the sealing device can be completely pneumatic or a combination of gas and electricity, which is beneficial The realization of remote precise control and monitoring; the whole device has simple structure, small size, convenient installation, high safety and good economy. The control mode of the device of the present invention is simple, which is beneficial to the realization of remote precise control, and has simple structure, small volume, unlimited installation orientation and high safety.

Description of drawings

Figure 1 is a schematic diagram of the structure of the pneumatic sealing device for the feed port.

Fig. 2 is the assembly drawing of the pneumatic sealing device of the feed port; Fig. 2(a) is the main view, and Fig. 2(b) is the sectional view.

Fig. 3 is a schematic diagram of the sealing device after action.

Figure 4 is a schematic diagram of the installation groove of the seal.

Detailed ways

Figure 1 shows the structure of the pneumatic sealing device for the feed port, and the whole device is realized by three parts. The supporting mechanism 1 is used to support other components and connect the container; the moving mechanism 3 pushes the slide plate to reach the material opening through the cylinder; the sealing part 2 uses the cylinder to push the pressure plate embedded with the seal to realize the sealing of the material opening.

Referring to FIG. 2 , the support mechanism 1 mainly includes a support frame 4 and a slide groove 7 . The support frame 4 is connected with the feed port by bolts, and is used to support the whole device. Since the opening and closing and sealing of the support frame 4 and the feed port have little relationship, the connection flexibility between the support frame 4 and the feed port is very large, and the size and shape of the support frame 4 can be determined according to the shape of the feed port itself. There are two chute 7 on the supporting frame 4, and the chute 7 is respectively located on both sides of the slide 10, and is parallel to the feed port, and is used for guiding the slide 10 to ensure the reliable movement of the slide 10. If the installation environment has explosion-proof requirements, the chute can be made of copper or high-strength plastic to avoid sparks. At the same time, since the entire device has no directional requirements, the device can be arranged in various directions, requiring little restriction on the surrounding space.

The moving mechanism 3 includes an air cylinder 5 and a slide plate 10 , the air cylinder 5 is directly connected to the supporting frame 4 , and the slide plate 10 is placed in the chute 7 and connected with the air cylinder 5 at the same time. The cylinder 5 drives the slide plate 10 to move. Since the stroke of the cylinder is variable, there is no limit to the size of the slide plate, and the sealing of the super large material port can be realized.

The sealing mechanism 2 includes a cylinder 6 , a pressure plate 9 and a seal 8 . The cylinder 6 is fixed on the slide plate 10, and the slide plate drives the sealing mechanism 2 to move to the position of the material opening. The sealing member 8 is made of corrosion-resistant rubber material and plays a sealing role. The cylinder assembly 6 is connected with the pressing plate 9, so as to drive the pressing plate 9 to press the material opening, and cooperate with the sealing member 8 embedded on the pressing plate 9 to realize the sealing of the material opening. The shape and size of pressing plate 9 have little influence on function, so its shape and size can be customized according to the feed opening. Figure 3 shows the relationship of each part after the sealing mechanism is activated.

Since the pressure plate 9 is a movable part, the seal 8 on it is often in contact with the feed port. In order to ensure the stability and reliability of the seal, in addition to the high-strength adhesive used for the seal 8, the groove for the seal 8 on the pressure plate 9 is also made into a dovetail. shape, as shown in Figure 4.

Claims (1)

1. A pneumatic sealing device for a feed opening, comprising a supporting mechanism, a moving mechanism and a sealing mechanism, the supporting mechanism is used to support the moving mechanism and the connecting container, and the moving mechanism is provided with a sealing mechanism; the supporting mechanism includes a supporting frame and a chute; The moving mechanism includes a first air cylinder and a slide plate, the first air cylinder is directly connected to the support frame, the slide plate is placed in the chute of the support mechanism, the slide plate is connected to the output rod of the first air cylinder, and the first air cylinder drives the slide plate to slide in the chute , so that the sealing mechanism reaches the feed port; the sealing mechanism includes a second cylinder, a pressure plate and a seal, the pressure plate is connected to the output rod of the second cylinder, the seal is embedded in the pressure plate, the second cylinder is fixed on the slide plate, and the second The cylinder drives the pressure plate to open or close the material opening.

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