The core of the present invention is to provide a device that can be adsorbed and air-floated, which can realize the adsorption or suspension of items with different characteristics, and is compatible with the needs of flipping and rotating LCD glass screens and OLED flexible screens, without causing displacement of the LCD glass screen , And will not cause damage to the OLED flexible screen.
The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
An example of an adsorbable and air-floatable device provided by the present inventionfigure 1 As shown,figure 1 A schematic diagram of an embodiment of an adsorbable and air-floatable device provided by the present invention. The adsorbable and air-floatable device includes a device main body 2 having an inner cavity 1 and an air connection 3 whose head extends into the inner cavity 1 The shape of the main body of the device is not limited, as long as it has an inner cavity and can draw air down from the inner cavity or inflate into the inner cavity through this air connection, the air connection 3 is not limited to being connected to the inner cavity from the bottom , As long as it does not enter the cavity from above, it is important that the entire surface of the device body 2 is covered with a ventilation layer 4 with multiple randomly distributed pores. The ventilation layer is required to be ventilated in both directions, which means that The gas is blown into the upper part from the lower part, and the gas can be sucked into the lower part from the upper part. The gas connection 3 is also connected to the first vent of the three-way joint 5, and the second vent of the three-way joint 5 passes through the first check valve 6. Connected to the air extraction line 7, the first one-way valve 6 is used to prevent the gas from entering the three-way joint 5 from the air extraction line 7, and the third air port of the three-way joint 5 is connected to the blowing line 9 through the second one-way valve 8 , The second one-way valve 8 is used to prevent gas from entering the air blowing pipe 9 from the three-way joint 5, the air pumping pipe 7 is used for pumping air so that the aeration layer 4 adsorbs the hard operating object, and the air blowing pipe 9 is used for blowing air And cooperate with another device that can absorb and float to make the flexible operation object suspended between the two air-permeable layers 4. During operation, the two devices can be used to arrange face-to-face, and carry out from the two sides of the flexible operation object. Blowing, so as to keep the flexible operation object still, the flexible operation object can be turned over. The hard operation object mentioned can be but not limited to an LCD glass screen, and the flexible operation object can be but not limited to an OLED flexible screen.
It should be noted that when blowing air, the second one-way valve 8 is opened and the first one-way valve 6 is closed. At this time, the airflow passes through the second one-way valve 8 to the three-way joint 5, and a part of the gas goes directly to the aeration layer. 4. The other part will pass through the three-way joint 5 to the position of the first one-way valve 6 of the air extraction pipe 7. Since the first one-way valve 6 is closed, the air flow returns to the ventilation layer 4 where it can be exhausted. The air passes through the small holes of the air-permeable layer 4 and blows to the object evenly to achieve the purpose of air flotation; similarly, when air is pumped, the object covers the surface of the air-permeable layer 4, and air cannot enter the cavity 1 and the pipeline , So the negative pressure will be generated through the three-way joint 5 to the position of the second one-way valve 8. Since the second one-way valve 8 is closed, it will return to the first one-way valve 6 and will eventually be pumped away , To achieve the purpose of adsorbing objects.
As can be seen from the above description, in the embodiment of the above-mentioned adsorbable and air-floatable device provided by the present invention, since it includes a device body with an inner cavity and an air joint with a head extending into the inner cavity, the entire surface of the device body is covered with Multi-layer venting layer with randomly distributed pores, the gas connection is also connected to the first vent of the three-way joint, and the second vent of the three-way joint is connected to the exhaust pipe through the first one-way valve, and the first one-way valve It is used to prevent gas from entering the three-way joint from the gas extraction pipe. The third air port of the three-way joint is connected to the blowing pipe through the second one-way valve. The second one-way valve is used to prevent gas from entering the blowing pipe from the three-way joint. , The air extraction pipeline is used for air extraction to make the ventilation layer adsorb the hard operation object, and the air blowing pipeline is used for blowing air and cooperates with another device that can absorb and float to make the flexible operation object suspended between the two ventilation layers Therefore, it can realize the adsorption or suspension of items with different characteristics, and is compatible with the needs of the flip and rotation of the LCD glass screen and the OLED flexible screen, which will neither cause the LCD glass screen to shift nor cause damage to the OLED flexible screen.
In a specific embodiment of the above-mentioned adsorbable and air-floatable device, you can refer tofigure 2,figure 2As a schematic diagram of a specific embodiment of the adsorbable and air-floatable device, the air extraction pipeline 7 may include a vacuum pressure valve connected to the first check valve 6 and a vacuum gauge 10 (the two are integrated), and A vacuum pump 11 with a vacuum valve is included.
Further, continue to referfigure 2The blowing pipe 9 may include a blowing component 12, an oil filter component connected with the blowing component 12, and a first pressure gauge 13 (the two are integrated). This oily filter component can filter impurities such as oil and water in the air path, reduce the pollution and blockage of the pores in the aeration layer, and increase the service life of the aeration layer.
In another specific embodiment of the above-mentioned adsorbable and air-floatable device, you can still refer tofigure 2, The oil filter component and the second one-way valve 8 can also have a precision pressure regulating valve, a second pressure gauge 14 (the two are integrated), a dew point meter 15 and a flow meter 16, which are connected in sequence, wherein the precision regulating valve The pressure valve is connected to the second one-way valve 8. Furthermore, a direct-pass filter 17 may be connected between the three-way joint 5 and the second one-way valve 8.
It should be noted that using the above specific embodiment, when blowing air, the air source passesfigure 2The CDA (3/4”) valve in the middle to the oil filter part and the first pressure gauge 13, filter the air supply and display the pressure value, and then control the flow through the flow meter 16, and then monitor the air supply state through the dew point meter 15, after precise adjustment The pressure valve and the second pressure gauge 14 precisely control the air supply volume. The second one-way valve 8 controls the air supply and cut-off. The air source is filtered again through the straight-through filter 17, and the three-way joint 5 is passed to the ventilation layer 4. At this time, the air flow Blow out through the randomly distributed air holes on the ventilation layer 4 to float the items, and achieve the purpose of air flotation. When air is pumped, the air enters through the ventilation layer 4, passes through the three-way joint 5, and passes through the first one-way Valve 6, and then through the vacuum pressure valve and vacuum gauge 10 to control the vacuum negative pressure and display the value, afterfigure 2The "3/8 valve" in the middle reaches the vacuum pump 11 to achieve the purpose of adsorbing hard operating objects.
Based on the various embodiments of the above-mentioned absorbable and air-floatable device, the air-permeable layer may preferably be a non-woven fabric layer or a sponge layer. Among them, the preferred parameters of non-woven fabrics include: surface resistance of 1.0E+4Ω≤R<1.0E+11Ω, the friction power supply is -100V 6To 1011Ohm, the voltage is -100V~0V~+100V and flatness and other requirements, meeting these higher requirements can be used in the liquid crystal industry and semiconductor industry, because these factors have a great impact on the yield of products. When a non-woven fabric that does not meet such high requirements is used, it can also be applied to food packaging and other industries. It can also vacuum transport silicon wafers, sapphires, circuit boards, CPUs, food packaging bags, etc., and it can not only absorb glass with a smooth surface , Silicon wafers and sapphire, etc., can also absorb circuit boards with uneven surfaces, and can absorb soft materials such as flexible screens, plastic packaging bags and wrapping paper, so its application range is very wide. Of course, in some other applications, other objects such as sponges can also be selected instead of non-woven fabrics, which is not limited here.
Those skilled in the art can understand that the shape of the device body in the above embodiments may be rectangular or circular. It should be noted that when a non-woven fabric or sponge is used, the cutting is very convenient, and it can be cut to the required size and shape according to actual needs. Of course, only two preferred shapes are listed here, which do not constitute a limitation. Take the non-woven fabric as an example. Its vacuum adsorption force is large and the energy consumption is low. Due to the irregular porous feature of the non-woven fabric, the force is uniform and stable during adsorption, and the action area is large, so the adsorption force is large. In the case of a non-woven suction cup, the area is one-twelfth of the sucked object, and the vacuum value can reach -0.1KPa, so the object can be sucked up smoothly. In addition, the cost of non-woven fabric is low. First, the manufacturing cost is low. Compared with polyphenylene sulfide (carbon fiber) and graphene, the material cost of non-woven fabric is lower; second, the operating cost is low, for example, now Need to correspond to 4 different specifications of glass adsorption and transport, the existing plan is to use multiple vacuum suction cups, and then divide these vacuum suction cups into several groups of controlled air sources, and turn on a corresponding set of suction cups for different sizes of glass to adsorb It can be seen that a lot of vacuum chucks, one-way solenoid valves and a large number of air pipes are needed in this way, and it is mechanically assembled, and the software control is relatively cumbersome. However, if the non-woven fabric is used in this embodiment, just choose one according to the four glass sizes Compromise size to make non-woven fabric, as long as one or two devices can correspond to different specifications of glass, only one gas path arrangement, only one solenoid valve control, because the non-woven suction cup is comparable to the conventional vacuum suction cup The biggest advantage is that it does not need to be covered completely, that is, half or even 1/3 of the object can be sucked to produce negative pressure, and no vacuum breaking alarm will occur. If the surface of the object is not shiny or not completely covered by the conventional vacuum suction cup , It will not be able to form a seal, it will break the vacuum and cause adsorption failure. In addition, compared to the adsorption method with concentrated force in the prior art, the surface of the non-woven fabric is flat (flatness 0.1mm), and the adsorption area is large. Each small hole on the contact surface is covered by an object to make the cavity The body generates negative pressure to achieve adsorption, so that all parts of the adsorption are more uniform, achieving no trace adsorption, so it does not damage the product.
In addition, the main body of the device can be selected as an aluminum case, a nylon case, a UPE case, a PEEK case, a resin case, or an iron case. Of course, other materials can also be selected according to actual needs, which is not limited here. The shell can be obtained by processing, pouring, 3D printing or stamping according to requirements.
And, continue to referfigure 1 The lower part of the four corners of the device body 2 can all have fixing holes 201, so that the device body can be firmly fixed on the workbench to ensure that it does not move during work. Of course, this is a preferred solution, and it can also be based on actual needs. No fixing holes are provided, and there is no restriction here.
In a further embodiment, the device body 2 and the ventilation layer 4 can be fixed by screws, glue or tape. The tape may not be limited to 3M tape, as long as the ventilation layer can be firmly fixed on the device body. Other fixing methods can also be selected according to actual needs, which are not limited here.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined in this document can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown in this document, but should conform to the widest scope consistent with the principles and novel features disclosed in this document.