Gas insulation assembly

Abstract

The utility model discloses a gas insulation assembly, which comprises a pressing plate and a plurality of cylinders, a sealing rubber strip is arranged on the bottom surface of the pressing plate, the plurality of cylinders are arranged along the length direction of the pressing plate, an output shaft is connected with the top surface of the pressing plate, the end part of the output shaft is sleeved with a shaft sleeve, and the shaft section of the shaft sleeve is in an inverted T shape. The lower end of the shaft sleeve is sleeved into a cavity which is of an inverted-T-shaped structure and has certain movement allowance in the vertical direction and the horizontal direction on the upper portion of the pressing plate, and the lower end face of the shaft sleeve and the bottom face of the cavity are matched arc-shaped faces. When being used for sealing a plane gap between a movable part and a static part, the air isolation assembly can be automatically leveled, and the acting force of the air cylinder can still be uniformly applied to the pressing plate after leveling, so that the pressing plate is kept to be attached to a surface to be sealed, and the sealing effect of the air isolation assembly is more reliable. When the sealing device is used for long gap sealing, such as gap sealing based on meter, the sealing effect can still be guaranteed.

Description

Technical Field

[0001] The utility model relates to a gas separation component for planar clearance sealing between a moving part and a static part. Here, the moving part and the static part refer to that during normal operation, one part is fixed in position, and the other part has different positions relative to the position-fixed part at different time periods. The planar clearance refers to the clearance between two flush planes. Background Art

[0002] Figure 1 The figure is a schematic diagram of the matching structure between the furnace body and the furnace door of the flexible material double-sided evaporation coating winding equipment launched by the company. As shown in the figure, the furnace door has front and rear wall plates 11 and 12 connected together, which are inserted into the furnace body 2 from the furnace opening. After sliding into place, the water-cooled partition 13 fixed between the front and rear wall plates 11 and 12 divides the furnace cavity into upper and lower parts. Among them, the upper part is the upper chamber, which is a clean and low-temperature area, and the lower part is the lower chamber, which is an evaporation high-temperature area. Airtight isolation needs to be achieved between the two parts.

[0003] As Figure 2 shown, a convex strip 21 is fixed on each of the left and right side walls of the furnace body 2. After the furnace door is inserted into the furnace body 2, the water-cooled partition 13 on it is just arranged side by side with the convex strip 21 left and right, the top surfaces are flush, and there is a gap in the middle. The present utility model mainly studies the sealing problem of such gaps. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide a gas separation component for planar clearance sealing between a moving part and a static part.

[0005] The purpose of the present utility model is achieved through the following technical solutions: A gas separation component includes a pressing plate and several (more than two) cylinders. A sealing rubber strip is arranged on the bottom surface of the pressing plate. Several cylinders are arranged along the length direction of the pressing plate, and the output shafts are connected to the top surface of the pressing plate. The end of the output shaft is sleeved with a shaft sleeve, and the axial section of the shaft sleeve is in an inverted T shape. The lower end is sleeved into a cavity on the upper part of the pressing plate with the same inverted T shape but having a certain margin of movement in the vertical and horizontal directions. The lower end surface of the shaft sleeve and the bottom surface of the cavity are arc surfaces that match each other.

[0006] The output shaft of the cylinder of the present utility model is connected to the pressing plate by inserting it into a cavity on the pressing plate with a certain margin of movement, so that the gas separation component of the present utility model has a certain self-adaptability and can automatically level and seal. The output shaft and the cavity are in contact through an arc surface, so that the force of the cylinder is evenly applied to the pressing plate, keeping the pressing plate in contact with the surface to be sealed. The combination of the two means enables the present utility model to always maintain a good sealing effect.

[0007] To adapt to the high-temperature environment during coating, the sealing rubber strip is made of high-temperature silica gel strip.

[0008] A groove is formed on the top surface of the pressing plate, and the connecting seat is fixed above the groove. The inner cavity of the connecting seat communicates with the groove on the top surface of the pressing plate to jointly form the cavity with a T-shaped structure. The cavity of this structure is easier to process.

[0009] Advantageous effects:

[0010] When the air isolation component of the present utility model is used for planar gap sealing between the moving and static parts, it can automatically level, and after leveling, the acting force of the air cylinder can still be evenly applied on the pressing plate, so that the pressing plate is kept in contact with the surface to be sealed, thereby making the sealing effect of the present utility model more reliable. When the present utility model is used for long-gap sealing, such as sealing of a gap measured in meters, the sealing effect can still be guaranteed. Description of the drawings

[0011] Figure 1 It is a schematic diagram of the matching structure of the furnace body and the furnace door of the flexible material double-sided evaporation coating winding equipment launched by the company;

[0012] Figure 2 It is a schematic diagram of the structure to be sealed;

[0013] Figure 3 It is a schematic diagram of the structure of the air isolation component of the preferred embodiment of the present utility model;

[0014] Figure 4 It is Figure 3 The longitudinal sectional view of the air isolation component passing through the central axis of the air cylinder in

[0015] Figure 5 It is a schematic diagram of the cooperation between the air isolation component and the structure to be sealed. Specific implementation manners

[0016] This embodiment aims to provide an air isolation component suitable for Figure 1 , 2 The gap sealing on both sides of the water-cooled partition 13 in the flexible material double-sided evaporation coating winding equipment shown in Figure 3 , 4 As shown in

[0017] The working process of the air isolation component in this embodiment is as follows:

[0018] As Figure 5 shown, the air isolation component is installed on the side wall of the furnace body 2 ( Figure 5 not shown in the figure), above the gap between the water-cooled partition 13 and the rib 21 in the closed door state. Before closing the door, the cylinder 3 contracts, and the pressing plate 4 is lifted by 20 mm, leaving enough margin for the furnace door to be smoothly inserted into the furnace body 2. After the door is closed in place, the program automatically descends according to the detection signal of the magnetic switch on the cylinder 3 and presses tightly on the water-cooled partition 13 of the furnace door, as Figure 5 shown. When the door opening switch is turned on, the program will supply air to the cylinder 3 before opening the door, causing the pressing plates 4 on both sides of the water-cooled partition 13 to lift, and the furnace door can be opened normally.

[0019] In this embodiment, the pressing force of the pressing plate 4 can be adjusted online. The connection method that the output shaft of the cylinder 3 is inserted into the cavity 61 with a certain movement margin on the pressing plate 4 enables the air isolation component to level automatically. The output shaft contacts the cavity 61 through an arc surface, so that the acting force of the cylinder 3 can be evenly applied to the pressing plate 4, enabling the pressing plate 4 to always fit the surface to be sealed, thereby improving the reliability of the seal.

[0020] Figure 1 For the flexible material double-sided evaporation coating winding equipment in , with a length of 4.2 meters, a height of 3 meters, and a depth of 2.6 meters, when this embodiment is applied to seal the gaps on both sides of the water-cooled partition 13, the sealing effect is good and can fully meet its air pressure grade requirements.

Claims

1. A gas barrier assembly, characterized in that: It includes a pressure plate and a plurality of cylinders, a sealing strip is provided on the bottom surface of the pressure plate, the plurality of cylinders are arranged along the length direction of the pressure plate, an output shaft is connected to the top surface of the pressure plate, the end of the output shaft is sleeved with a shaft sleeve, the axial cross-section of the shaft sleeve is an inverted T-shape, and the lower end is sleeved into a cavity at the upper part of the pressure plate which also has an inverted T-shaped structure but has a certain amount of movable margin up and down and left and right, and the lower end surface of the shaft sleeve and the bottom surface of the cavity are adaptive arc surfaces.

2. The air barrier assembly according to claim 1, characterized in that: The sealing rubber strip is a high-temperature silicone strip.

3. The air barrier assembly according to claim 2, characterized in that: The top surface of the pressing plate is formed with a groove, a connecting seat is fixed above the groove, and the inner cavity of the connecting seat is connected with the groove on the top surface of the pressing plate to form the cavity of the T-shaped structure.

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