CN212655122U

CN212655122U - Adsorption device capable of adjusting air pressure

Info

Publication number: CN212655122U
Application number: CN202020944600.4U
Authority: CN
Inventors: 陈高龙
Original assignee: Chengdu Junchuang Technology Co ltd
Current assignee: Chengdu Junchuang Technology Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-03-05
Anticipated expiration: 2030-05-29

Abstract

The utility model relates to a vacuum adsorption field, which particularly discloses an adsorption device capable of adjusting air pressure, comprising a laminating cavity, a first air pump acting on the laminating cavity, an adsorption jig positioned in the laminating cavity and a second air pump acting on the adsorption jig, wherein the adsorption jig is provided with an air exhaust channel communicated with the second air pump; the adsorption device further comprises an adjusting mechanism used for adjusting the air pressure difference between the adsorption jig and the laminating cavity, and the adjusting mechanism comprises a movable plug which moves between a closed position and an open position under the action of air pressure, so that the air pressure in the adsorption jig is not larger than the laminating cavity.

Description

Adsorption device capable of adjusting air pressure

Technical Field

The utility model relates to a vacuum adsorption field especially relates to an adsorption equipment of adjustable atmospheric pressure.

Background

In order to ensure the attaching quality of the screen assembly and prevent bubbles from being generated between the flexible inner screen and the glass cover plate in the attaching process, the attaching process of the screen assembly is often placed in a vacuum environment for attaching in the prior art. At the moment, the first air pump is required to continuously adsorb the vacuum laminating cavity so as to ensure the air pressure in the vacuum laminating cavity; meanwhile, the adsorption jig is required to transport the flexible inner screen, and due to the fact that the installation space of the second air pump used for adsorbing the adsorption jig influences, the air suction power of the second air pump is difficult to be larger than that of the first air pump, and the adsorption force of the adsorption jig on the flexible screen assembly cannot be guaranteed. In the prior art, a set of vacuum switching device and an electromechanical control system are usually added to balance the internal and external pressures of the jig, but the cost of the method is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome prior art not enough, and provide an adsorption equipment of adjustable atmospheric pressure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an adsorption device capable of adjusting air pressure comprises a laminating cavity, a first air pump acting on the laminating cavity, an adsorption jig positioned in the laminating cavity and a second air pump acting on the adsorption jig, wherein the adsorption jig is provided with an air exhaust channel communicated with the second air pump; the adsorption device further comprises an adjusting mechanism used for adjusting the air pressure difference between the adsorption jig and the laminating cavity, and the adjusting mechanism comprises a movable plug which moves between a closed position and an open position under the action of air pressure, so that the air pressure in the adsorption jig is not larger than the laminating cavity.

Furthermore, the adjusting mechanism also comprises a connector and an exhaust cover, wherein the connector and the exhaust cover are fixedly arranged and an inner cavity for the movable plug to reciprocate is formed between the connector and the exhaust cover; the connector is internally provided with a connecting channel for communicating the air exhaust channel with the inner cavity.

Further, be equipped with the gas pocket of connecting inner chamber and laminating chamber on the exhaust cover to the gas in the absorption tool of discharge or through the laminating chamber of relative high pressure state with the activity stopper promote to seal the position.

Further, the air holes comprise a first air hole arranged on the axial direction of the exhaust cover and a second air hole arranged on the radial direction of the exhaust cover; the gas enters the inner cavity from the attaching cavity through the first gas passage and pushes the movable plug to the closed position, and the gas enters the attaching cavity from the inner cavity through the second gas passage to discharge high-pressure gas in the adsorption jig.

Further, the exhaust cover is screwed on the exhaust channel through threads or is glued on the exhaust channel through sealant.

Furthermore, the sealing position is located on the connecting head, and the sealing position and the shape of the movable plug are matched, so that when the movable plug is located at the sealing position, gas in the fitting cavity is prevented from entering the air exhaust channel.

Furthermore, the adjusting mechanism is screwed on the air exhaust channel through threads or is glued on the air exhaust channel through sealant.

Further, the movable plug is a combination of a sphere, a cone, a cuboid or a plurality of regular bodies.

Further, adsorb the tool still includes the absorption air flue that extends to air exhaust passage from the top surface to can be adsorbed on the adsorption plane steadily by the absorption piece when second air pump work.

Further, the adsorption device also comprises a controller for controlling the first adsorption pump and the second adsorption pump to work.

Owing to adopted above technical scheme, the utility model discloses following beneficial effect has:

the utility model discloses an adsorption equipment of adjustable atmospheric pressure can effectually prevent to adsorb atmospheric pressure in the tool and be greater than the laminating chamber, makes to adsorb the tool and can freely transport flexible interior screen in the laminating intracavity, prevents to be greater than the laminating intracavity because of the atmospheric pressure that adsorbs in the tool, leads to adsorbing the gas in the tool and presses flexible interior screen to the laminating chamber.

Drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.

FIG. 1 is a schematic diagram of the general structure of the first embodiment;

FIG. 2 is a schematic structural view of an adsorption jig;

FIG. 3 is a schematic view of the adjustment mechanism;

FIG. 4 is a schematic structural diagram of a connecting head;

FIG. 5 is a schematic view of the exhaust cover;

FIG. 6 is a schematic gas flow diagram of FIG. 1;

fig. 7 is a schematic gas flow diagram 2.

Reference numerals:

1. a fitting cavity; 2. adsorbing the jig; 21. an air extraction channel; 22. adsorbing the air passage; 3. an adjustment mechanism; 31. a connector; 311. a connecting channel; 32. an exhaust cover; 321. air holes; 321a, a first air hole; 321b, a second air hole; 33. a movable plug; 3S, inner cavity; 3A, a closing position; 3B, an opening position; 4. a first air pump; 5. a second air pump; 6. a controller; 7. a flexible inner screen.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used only to indicate relative positional relationships that may change when the absolute position of an object being described changes, and are merely for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

The first embodiment is as follows:

referring to fig. 1 to 5, the present invention provides an adsorption apparatus capable of adjusting air pressure, which includes a bonding chamber 1, a first air pump 5 acting on the bonding chamber 1, an adsorption jig 2 located in the bonding chamber 1, and a second air pump 6 acting on the adsorption jig 2, wherein the adsorption jig 2 has an air pumping channel 21 communicating with the second air pump 6; the adsorption device further comprises an adjusting mechanism 3 for adjusting the air pressure difference between the adsorption jig 2 and the laminating cavity 1, wherein the adjusting mechanism 3 comprises a movable plug 33 which moves between a closed position 3A and an open position 3B under the action of air pressure so that the air pressure in the adsorption jig 2 is not larger than the laminating cavity 1.

It should be noted that, the first air pump 5 acts on the bonding chamber 1 to form a low pressure in the bonding chamber 1, and ideally, the internal air pressure should be 0. So that there is no air between the flexible inner screen 7 and the glass cover plate during the attachment process of the screen assembly, thereby fundamentally preventing air bubbles from being generated between the flexible inner screen 7 and the glass cover plate to improve the attachment quality of the screen assembly.

It should be noted that, the second air pump 6 acts on the adsorption jig 2 to reduce the air pressure in the adsorption jig 2, so as to adsorb and transport the flexible inner screen 7, and in an ideal state, the air pressure in the adsorption jig 2 under the action of the second air pump 6 should be smaller than the air pressure in the attachment cavity 1, so that the flexible inner screen 7 can be attached to the surface of the adsorption jig 2 under the action of the air pressure, but because the installation space of the second air pump 6 is smaller, the power of the second air pump is also smaller than that of the first air pump 5; therefore, in this embodiment, the adsorption jig assists to adsorb the flexible inner screen 7 in an electrostatic adsorption manner, but at the same time, the air pressure in the adsorption jig 2 also cannot be greater than the air pressure in the bonding chamber 1, otherwise the flexible inner screen 7 will be pressed back to the inside of the bonding chamber 1 under the action of the air pressure.

Adsorb tool 2's structure:

as shown in fig. 2, the suction jig 2 has a suction channel 21 and a suction air channel 22 connected to the suction channel 21. The air pumping channel 21 penetrates through two ends of the adsorption jig 2, one end of the air pumping channel is used for being connected with the second air pump 6, and the other end of the air pumping channel is used for being connected with the adjusting mechanism 3. The adsorption air passages 22 are multiple and extend upwards from the air exhaust channel 21 to the adsorption surface of the adsorption jig contacting with the flexible inner screen 7 so as to adsorb the flexible inner screen 7. It should be noted that, in an ideal state, the air pressure in the adsorption jig is smaller than that in the attachment cavity 1 so that the flexible inner screen 7 is adsorbed on the adsorption jig. However, in actual operation, since the second adsorption pump 5 is hardly larger in adsorption force than the first adsorption pump 4, it is possible to assist in actual operation by electrostatic adsorption.

Structure of the adjusting mechanism 3:

as shown in fig. 3 to 5, the adjusting mechanism 3 further includes a connecting head 31 and an exhaust cover 32, and the connecting head 31 and the exhaust cover 32 are fixedly disposed and form an inner cavity 3S for the movable plug 33 to reciprocate therebetween. One end of the connector 31 is fixedly arranged on the air exhaust channel 21 through sealant, so that a gap for gas flowing is prevented from being formed between the connector and the air exhaust channel; the other end of the connector 31 is screwed with the exhaust cover through screw threads, and an inner cavity 3S for the movable plug 33 to move is formed between the connector and the exhaust cover. It should be noted that the connector 31 has a connecting channel 311 inside to communicate the air exhaust channel 21 and the inner cavity 3S, and the exhaust cover 32 is provided with an air hole 321 connecting the inner cavity 3S and the attachment cavity 1 to form a channel for exhausting air from the adsorption jig. Further, the air holes 321 include a first air hole 321a disposed in an axial direction of the exhaust cover 32 and a second air hole 321b disposed in a radial direction of the exhaust cover 32.

It should be noted that the connector 31 can also be connected to one end of the air exhaust channel 21 through a screw thread, and the exhaust cover 32 can also be connected to the connector 31 through a sealant; it is only necessary to seal the connection head 31 and the exhaust passage 21, and seal the connection head 31 and the exhaust cover 32.

When opening position 3B, the inside atmospheric pressure of absorption tool is greater than the atmospheric pressure in laminating chamber 1, and the inside gas of absorption tool is arranged to laminating chamber 1 through connect the passageway 311, inner chamber 3S and gas pocket 321, and at this in-process, activity stopper 33 is promoted to first gas pocket 321a department by the gas in the absorption tool, most gas in the absorption tool is discharged to laminating chamber 1 from second gas pocket 321B. The gas discharged into the bonding chamber 1 is sucked to the outside of the bonding chamber 1 by the first suction pump 5 continuously acting on the bonding chamber 1. It should be noted that, the utility model discloses in open position 3B be generalized, only need satisfy promptly that the gas in the absorption tool can enter into inner chamber 3S, just can regard as movable stopper 33 to be located and open position 3B. In addition, it should be noted that, when the movable plug 33 is located at the opening position 3B, the air pressure in the adsorption jig may be greater than the attachment cavity 1, or may be equal to the attachment cavity 1.

In the sealing position 3A, the air pressure in the bonding chamber 1 is greater than the air pressure in the adsorption jig, and the movable plug 33 is pressed to the connection channel 311 by the gas overflowing from the first air hole 321a to seal the connection channel 311. It should be noted that the sealing position 3A is located at a connection position between the connection channel 311 of the connection head 31 and the inner cavity 3S, and the shape of the sealing position 3A is matched with the shape of the movable plug 33, so that when the movable plug 33 is located at the sealing position 3A, gas cannot enter the adsorption jig from the attachment cavity 1.

In this embodiment, the movable plug 33 is a silica gel sphere, and the sealing portion 3A has a sealing surface adapted to the silica gel sphere so as to form a sealing surface between the two, through which gas cannot pass. In other embodiments, the structure of the movable plug 33 may also be a cone, a cuboid or a combination of multiple regular bodies, and the shape of the closed position 3A is matched with the shape of the closed position of the movable plug 33.

It should be noted that the material of the movable plug is silicon gel, which is only one embodiment of the present embodiment, in other embodiments, the skilled person may also change the material according to the actual situation, and the replaceable material includes, but is not limited to, plastic, rubber, polyether ether copper, and the like.

In addition, it should be noted that the adsorption apparatus further includes a controller 6 to control the operation of the first adsorption pump 4 and the second adsorption pump 5, and the controller 6 is electrically connected to the first adsorption pump 4 and the second adsorption pump 5.

The principle of the utility model is that:

as shown in fig. 6, when the air pressure in the adsorption jig is greater than the air pressure in the attachment cavity, the air in the adsorption jig pushes the movable plug to the opening position in the direction of the arrow, so that the air in the adsorption jig enters the attachment cavity through the first air hole and the second air hole, and the air pressure in the adsorption jig is not greater than the attachment cavity.

As shown in fig. 7, when the air pressure in the adsorption jig is smaller than the air pressure in the attachment chamber, the air in the attachment chamber retreats the movable plug to the closed position in the direction of the arrow to block the connection channel, so that the air pressure in the adsorption jig is smaller than the air pressure in the attachment chamber.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An adsorption device capable of adjusting air pressure comprises a laminating cavity, a first air pump acting on the laminating cavity, an adsorption jig positioned in the laminating cavity and a second air pump acting on the adsorption jig, wherein the adsorption jig is provided with an air exhaust channel communicated with the second air pump; the adsorption device is characterized by further comprising an adjusting mechanism for adjusting the air pressure difference between the adsorption jig and the attachment cavity, wherein the adjusting mechanism comprises a movable plug which moves between a closed position and an open position under the action of air pressure, so that the air pressure in the adsorption jig is not larger than the attachment cavity.

2. The absorption apparatus according to claim 1, wherein the adjusting mechanism further comprises a connector and an exhaust cover, the connector and the exhaust cover are fixedly arranged and form an inner cavity for the movable plug to reciprocate between; the connector is internally provided with a connecting channel for communicating the air exhaust channel with the inner cavity.

3. The adsorption device according to claim 2, wherein the exhaust cover is provided with an air hole connecting the inner cavity and the attachment cavity to exhaust air in the adsorption jig or push the movable plug to the closed position through the attachment cavity in a relatively high pressure state.

4. The adsorption device of claim 3, wherein the air holes comprise a first air hole arranged in an axial direction of the exhaust cover and a second air hole arranged in a radial direction of the exhaust cover; the gas enters the inner cavity from the attaching cavity through the first gas passage and pushes the movable plug to the closed position, and the gas enters the attaching cavity from the inner cavity through the second gas passage to discharge high-pressure gas in the adsorption jig.

5. The suction device as claimed in claim 2, wherein said exhaust cap is screwed or glued to the evacuation channel by means of a sealant.

6. A suction device according to claim 2, wherein the closure station is located on the connector and is adapted to the profile of the moveable plug to prevent gas from the abutment chamber from entering the suction passage when the moveable plug is in the closure station.

7. The suction device as claimed in claim 1, wherein the adjustment mechanism is screwed or glued to the suction channel by means of a sealant.

8. The adsorption device according to claim 1, wherein the movable plug is a sphere, a cone, a cuboid or a combination of multiple regular bodies.

9. The adsorption device of claim 1, wherein the adsorption fixture further comprises an adsorption air channel extending from the top surface to the air exhaust channel, so that the adsorbed member can be stably adsorbed on the adsorption surface when the second air pump is operated.

10. The sorption arrangement of any one of claims 1 to 9, further comprising a controller to control operation of the first sorption pump and the second sorption pump.