A device capable of adsorption and air flotation

Abstract

The present application discloses an adsorbable and air-floating device, including a device body with an inner cavity and an air circuit connector with a head extending into the inner cavity, the entire surface of the device body is covered with a ventilation layer with multiple layers of randomly distributed air holes, the air circuit connector is also connected to the first ventilation port of the three-way connector, the second ventilation port of the three-way connector is connected to the exhaust pipeline through a first one-way valve, the third ventilation port of the three-way connector is connected to the blowing pipeline through a second one-way valve, the exhaust pipeline is used to exhaust air so that the ventilation layer adsorbs the hard operating object, and the blowing pipeline is used to blow air and cooperate with another adsorbable and air-floating device to make the flexible operating object suspend between the two ventilation layers. The above-mentioned adsorbable and air-floating device disclosed in the present application can realize the adsorption or suspension of objects with different characteristics, and is compatible with the flipping and rotation requirements of LCD glass screens and OLED flexible screens, and will neither cause displacement of the LCD glass screen nor damage to the OLED flexible screen.

Description

Technical Field

[0001] The invention belongs to the technical field of automated machinery, and in particular relates to a device capable of adsorption and air floatation. Background Art

[0002] When producing screens, the independent flipping and rotation of LCD glass screens can be achieved by adsorption of various common vacuum suction cups, while the independent flipping and rotation of OLED flexible screens can be achieved by another non-contact flipping device. However, the combination of the two devices on one device will cause conflicts. This is because OLED flexible screens require non-contact in production to avoid damage to the product. Specifically, a non-contact suction cup is used to float the OLED flexible screen, and an air claw is used to clamp the invalid area of ​​the flexible screen for fixation; while the LCD glass screen is relatively hard, and the LCD glass screen of the same area is heavier than the flexible screen. Therefore, when the above-mentioned non-contact flipping device is used to float it, if there is a certain angle of inclination, this LCD glass screen will be offset, or even slide out of the production equipment, causing collision and scrapping. If this LCD glass screen is first fixed by a fixing method such as an air claw, there is a risk of crushing the screen when the upper and lower platforms meet the glass screen. In summary, there is an urgent need for a device that can achieve vacuum adsorption when operating the LCD glass screen and air blowing suspension when operating the OLED flexible screen, so as to be compatible with the flipping and rotation requirements of the LCD glass screen and the OLED flexible screen. Summary of the invention

[0003] To solve the above problems, the present invention provides an adsorbable and buoyant device, which can achieve the adsorption or suspension of objects with different characteristics, and is compatible with the flipping and rotation requirements of LCD glass screens and OLED flexible screens, without causing displacement of the LCD glass screen and damage to the OLED flexible screen.

[0004] The present invention provides an adsorbable and air-floating device, comprising a device body with an inner cavity and an air path joint with a head extending into the inner cavity, the entire surface of the device body being covered with a ventilation layer with multiple layers of randomly distributed air holes, the air path joint being also connected to a first air vent of a three-way joint, the second air vent of the three-way joint being connected to an exhaust pipeline via a first one-way valve, the first one-way valve being used to prevent gas from entering the exhaust pipeline from the three-way joint, the third air vent of the three-way joint being connected to an air blowing pipeline via a second one-way valve, the second one-way valve being used to prevent gas from entering the air blowing pipeline from the three-way joint, the exhaust pipeline being used to exhaust air so that the ventilation layer adsorbs a hard operating object, and the air blowing pipeline being used to blow air and cooperate with another adsorbable and air-floating device to allow a flexible operating object to be suspended between two ventilation layers.

[0005] Preferably, in the above-mentioned adsorbable and floatable device, the air extraction pipeline includes a vacuum pressure regulating valve and a vacuum gauge connected to the first one-way valve, and also includes a vacuum pump with a vacuum valve.

[0006] Preferably, in the above-mentioned adsorbable and floatable device, the air blowing pipeline includes an air blowing component, and an oil filter component and a first pressure gauge connected to the air blowing component.

[0007] Preferably, in the above-mentioned adsorbable and floatable device, there is also a precision pressure regulating valve, a second pressure gauge, a dew point meter and a flow meter connected in sequence between the oil filter component and the second one-way valve, wherein the precision pressure regulating valve is connected to the second one-way valve.

[0008] Preferably, in the above-mentioned adsorbable and floatable device, a straight-through filter is further connected between the three-way connector and the second one-way valve.

[0009] Preferably, in the above-mentioned adsorbable and floatable device, the ventilation layer is a non-woven fabric layer or a sponge layer.

[0010] Preferably, in the above-mentioned adsorbable and floatable device, the shape of the device body is rectangular or circular.

[0011] Preferably, in the above-mentioned adsorbable and floatable device, the device body is an aluminum shell, a nylon shell, a UPE shell, a PEEK shell, a resin shell or an iron shell.

[0012] Preferably, in the above-mentioned adsorbable and air-floatable device, the lower parts of the four corners of the device body are provided with fixing holes.

[0013] Preferably, in the above-mentioned adsorbable and air-floating device, the device body and the ventilation layer are fixed by means of screws, glue or tape.

[0014] It can be known from the above description that in the above-mentioned adsorbable and air-floating device provided by the present invention, since it includes a device body with an inner cavity and an air path connector with a head extending into the inner cavity, the entire surface of the device body is covered with a ventilation layer with multiple layers of randomly distributed pores, and the air path connector is also connected to the first air vent of the three-way connector, and the second air vent of the three-way connector is connected to the exhaust pipeline through a first one-way valve, and the first one-way valve is used to prevent gas from entering the three-way connector from the exhaust pipeline. The third air vent of the three-way connector is connected to the blowing pipeline through a second one-way valve, and the second one-way valve is used to prevent gas from entering the blowing pipeline from the three-way connector. The exhaust pipeline is used to exhaust air so that the ventilation layer adsorbs the hard operation object, and the blowing pipeline is used to blow air and cooperate with another adsorbable and air-floating device to make the flexible operation object suspended between the two ventilation layers, so that the adsorption or suspension of objects with different characteristics can be achieved, and the flipping and rotation requirements of the LCD glass screen and the OLED flexible screen are compatible, and neither the LCD glass screen will be displaced nor the OLED flexible screen will be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0016] Figure 1 A schematic diagram of an embodiment of an adsorbable and air-floating device provided by the present invention;

[0017] Figure 2 The figure is a schematic diagram of a specific embodiment of an adsorbable and floatable device. DETAILED DESCRIPTION

[0018] The core of the present invention is to provide an adsorbable and buoyant device that can achieve the adsorption or suspension of objects with different characteristics, and is compatible with the flipping and rotation requirements of LCD glass screens and OLED flexible screens, without causing displacement of the LCD glass screen and damage to the OLED flexible screen.

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] An embodiment of the adsorbable and air-floating device provided by the present invention is as follows: Figure 1 As shown, Figure 1 The present invention provides a schematic diagram of an embodiment of an adsorbable and air-floating device, the adsorbable and air-floating device comprises a device body 2 having an inner cavity 1 and an air path connector 3 with a head extending into the inner cavity 1. The shape of the device body is not limited, as long as it has an inner cavity and can be used to draw air downward from the inner cavity or inflate the inner cavity through the air path connector. The air path connector 3 is not limited to being connected to the inner cavity from the bottom, as long as it does not enter the inner cavity from the top. Importantly, the entire surface of the device body 2 is covered with a ventilation layer 4 having multiple layers of randomly distributed pores, and the ventilation layer is required to be able to perform two-way ventilation, that is, the gas can be blown into the upper part from the lower part, and the gas can be sucked into the lower part from the upper part. The air path connector 3 is also connected to the first pass of the three-way connector 5. The air port, the second air port of the three-way joint 5 is connected to the exhaust line 7 through the first one-way valve 6, the first one-way valve 6 is used to prevent gas from entering the three-way joint 5 from the exhaust line 7, 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 blowing line 9 from the three-way joint 5, the exhaust line 7 is used to exhaust air so that the ventilation layer 4 adsorbs the hard operating object, and the blowing line 9 is used to blow air and cooperate with another adsorbable and air-floating device to make the flexible operating object suspend between the two ventilation layers 4. During operation, two of the devices can be arranged face to face, and air can be blown from the two sides of the flexible operating object, so as to keep the flexible operating object motionless, so as to realize the flipping of the flexible operating object. The hard operating object mentioned herein can be but not limited to an LCD glass screen, and the flexible operating object can be but not limited to an OLED flexible screen.

[0021] It should be noted that when blowing, 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 ventilation layer 4, and the other part will pass through the three-way joint 5 to the position of the first one-way valve 6 of the exhaust pipeline 7. Since the first one-way valve 6 is closed, the airflow returns to the ventilation layer 4 that can be exhausted. Finally, the gas passes through the small holes in the ventilation layer 4 and blows evenly to the object to achieve the purpose of flotation; similarly, when exhausting, the object is covered on the surface of the ventilation layer 4, and the air cannot enter the inner cavity 1 and the pipeline, so negative pressure is generated, and it will also pass 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 returns to the first one-way valve 6 and is finally extracted to achieve the purpose of adsorbing the object.

[0022] It can be seen from the above description that in the embodiment of the above-mentioned adsorbable and air-floating device provided by the present invention, since it includes a device body with an inner cavity and an air path connector with a head extending into the inner cavity, the entire surface of the device body is covered with a ventilation layer with multiple layers of randomly distributed pores, and the air path connector is also connected to the first air vent of the three-way connector, and the second air vent of the three-way connector is connected to the exhaust pipeline through a first one-way valve, and the first one-way valve is used to prevent gas from entering the three-way connector from the exhaust pipeline. The third air vent of the three-way connector is connected to the blowing pipeline through a second one-way valve, and the second one-way valve is used to prevent gas from entering the blowing pipeline from the three-way connector. The exhaust pipeline is used to exhaust air so that the ventilation layer adsorbs the hard operation object, and the blowing pipeline is used to blow air and cooperate with another adsorbable and air-floating device to make the flexible operation object suspended between the two ventilation layers, so that the adsorption or suspension of objects with different characteristics can be achieved, and it is compatible with the flipping and rotation requirements of the LCD glass screen and the OLED flexible screen, and neither the LCD glass screen will be displaced nor the OLED flexible screen will be damaged.

[0023] In a specific embodiment of the above-mentioned adsorbable and air-floating device, reference can be made to Figure 2 , Figure 2 This is a schematic diagram of a specific embodiment of an adsorbable and floatable device. The air extraction pipeline 7 may include a vacuum pressure regulating valve and a vacuum gauge 10 (the two are integrated) connected to the first one-way valve 6, and also includes a vacuum pump 11 with a vacuum valve.

[0024] For further information, please refer to Figure 2 The air blowing pipeline 9 may include an air blowing component 12 and an oil filter component and a first pressure gauge 13 (the two are integrated) connected to the air blowing component 12. The oil filter component can filter impurities such as oil and water in the air path, reduce pollution and blockage of pores in the ventilation layer, and increase the service life of the ventilation layer.

[0025] In another specific embodiment of the above-mentioned adsorbable and air-floating device, reference can still be made to Figure 2 A precision pressure regulating valve, a second pressure gauge 14 (the two are integrated), a dew point meter 15 and a flow meter 16 may be sequentially connected between the oil filter component and the second one-way valve 8, wherein the precision pressure regulating valve is connected to the second one-way valve 8. Furthermore, a straight-through filter 17 may be connected between the three-way connector 5 and the second one-way valve 8.

[0026] It should be noted that, using the above specific embodiment, when blowing, the air source passes through Figure 2The CDA (3 / 4") valve in the oil filter component and the first pressure gauge 13 filters the air supply and displays the pressure value, then controls the flow through the flow meter 16, monitors the air supply status through the dew point meter 15, accurately controls the air supply through the precision pressure regulating valve and the second pressure gauge 14, controls the air supply and air cut-off through the second check valve 8, filters the air source again through the straight filter 17, passes through the three-way connector 5 to the ventilation layer 4, and then the air flow is blown out through the randomly distributed air holes on the ventilation layer 4, so that the objects float, and the purpose of air flotation can be achieved. When the air is pumped, the air enters through the ventilation layer 4, passes through the three-way connector 5, passes through the first check valve 6, and then passes through the vacuum pressure regulating valve and the vacuum gauge 10 to control the vacuum negative pressure size and display the value, and passes through Figure 2 The "3 / 8 valve" in the vacuum pump 11 is connected to achieve the purpose of adsorbing the hard operating object.

[0027] Based on each embodiment of the above-mentioned adsorbable and air-floatable device, the ventilation layer can preferably be a non-woven fabric layer or a sponge layer. Among them, the preferred parameters of the non-woven fabric include: surface resistance of 1.0E+4Ω ≤ R < 1.0E+11Ω, triboelectric power of -100V < U < +100V, flatness of 0.1mm. Specifically, the irregular characteristics of the non-woven fabric can be utilized to allow the gas in the cavity to be discharged through the irregular fine pores of the non-woven fabric, so that the gas uniformly acts on the items placed on it, lifting the items to achieve the air-floating effect; similarly, during vacuum adsorption, the air in the inner cavity can be pumped out by a vacuum pump to generate negative pressure. In this way, when the item covers the surface of the non-woven fabric, it blocks the fine pores of the non-woven fabric, and under the action of the external pressure, the item is adsorbed on the surface of the non-woven fabric to achieve the adsorption effect. The parameters of the non-woven fabric pores mainly depend on two aspects: the thickness of the spinneret (fiber): the thicker the spinneret, the smaller the gap between two adjacent filaments, that is, the finer the irregular pores; the density of the spinneret (fiber); in the same area, the denser the spinneret, the smaller the gap between the filaments, and the finer the irregular pores. Conversely, the sparser the spinneret, the larger the gap between the filaments, and the larger the irregular pores. Of course, generally speaking, the non-woven fabric does not refer to the size of the pores, but the air permeability. Therefore, the test parameters for the non-woven fabric in this case are as follows: gram weight: 24305 g / ㎡ (the test sample size is 120mm * 60mm, and this weight is about 175g, calculated according to the proportion of the weight per ㎡), thickness is 5mm, CDMD strength (longitudinal and transverse tensile strength): the condition is a tensile speed of 50mm / min, humidity of 50%, temperature of 23.5°, the execution standard is GB / T228, the sample size of the formula: 50mm * 50mm, the maximum force: 2936.459N, tensile strength: 9.765Mpa, elongation rate: 109.685%; air permeability L / H: condition: the pressure difference measurement range is 0 - 1KPa, the flow rate range is 0 - 1800L / h, the sample size is 50mm * 50mm, the test condition is 0.1MPA, and the test result of the air permeability is 15.68L / h. This non-woven fabric can simultaneously meet the air-floating and adsorption requirements, and the anti-static resistance value range is 10 6 to 10 11 ohms, voltage of -100V to 0V to +100V and flatness requirements, etc. Meeting these higher requirements can be applied in the liquid crystal industry and semiconductor industry because these factors have a great impact on the product yield. When using non-woven fabrics that do not meet such high requirements, they can also be applied to industries such as food packaging. Similarly, they can vacuum adsorb and transport silicon wafers, sapphires, circuit boards, CPUs, food packaging bags, etc. It can not only adsorb glass, silicon wafers, and sapphires with smooth surfaces, but also adsorb circuit boards with uneven surfaces, and even adsorb soft substances such as flexible screens, plastic packaging bags, and wrapping papers. Therefore, its application range is very wide. Of course, in some other application scenarios, other objects such as sponges can also be selected to replace the non-woven fabric, which is not limited here.

[0028] It will be understood by those skilled in the art that the shape of the device body in the above embodiments can be rectangular or circular. It should be noted that when non-woven fabrics or sponges are used, cutting is very convenient and can be cut into the required size and shape according to actual needs. Of course, only two preferred shapes are listed here, which does not constitute a limitation. Taking non-woven fabrics as an example, it has a large vacuum adsorption force and low energy consumption. Due to the irregular porous characteristics of non-woven fabrics, the force is uniform and stable during adsorption, and the effective area is large, so the adsorption force is large. When a circular non-woven fabric suction cup is used, the area is one twelfth of the object being sucked, and the vacuum value can reach -0.1KPa, so the object can be sucked up steadily. In addition, non-woven fabrics have low costs. First, the manufacturing cost is low. Compared with polyphenylene sulfide (containing carbon fiber) and graphene, the material cost of non-woven fabrics is lower; second, the application cost is low. For example, it is now necessary to adsorb and transport 4 different specifications of glass. The existing solution is to use a layout of multiple vacuum suction cups, and then divide these vacuum suction cups into several groups to control the air source. For different sizes of glass, a corresponding group of suction cups are opened for adsorption. It can be seen that this requires the use of many vacuum suction cups, one-way solenoid valves and a large number of air pipes, and it is mechanically assembled, and the software control is relatively cumbersome. The present embodiment adopts non-woven fabrics. For non-woven fabrics, you only need to choose a compromise size according to the sizes of the four types of glass to make non-woven fabrics. Only one or two devices can correspond to different specifications of glass. Only one gas path is needed, and only one solenoid valve is needed for control. The biggest advantage of non-woven fabric suction cups over conventional vacuum suction cups is that they do not need to be fully covered, that is, half or even 1 / 3 of the object can be sucked to generate negative pressure, and there will be no vacuum alarm. If a conventional vacuum suction cup is used, if the surface of the object is not glossy or the suction cup is not completely covered, it cannot be closed, and the vacuum will be broken, resulting in adsorption failure. In addition, compared with the force-concentrated adsorption method in the prior art, the surface of the non-woven fabric is flat (flatness 0.1mm), the adsorption area is large, and each small hole on the contact surface is covered by the object, so that the cavity generates negative pressure and adsorption is achieved. Then, the adsorption is more uniform everywhere, and traceless adsorption is achieved, so the product is not damaged.

[0029] In addition, the device body can be selected as an aluminum shell, a nylon shell, a UPE shell, a PEEK shell, a resin shell or an iron shell. Of course, shells made of other materials can also be selected according to actual needs. There is no restriction here. The above-mentioned shell can be obtained by processing, casting, 3D printing or stamping according to needs.

[0030] Furthermore, continue to refer to Figure 1 The lower parts of the four corners of the device body 2 can have fixing holes 201, so that the device body can be firmly fixed on the workbench to ensure that it does not move during operation. Of course, this is a preferred solution, and the fixing holes can be omitted according to actual needs, which is not limited here.

[0031] In a further embodiment, the device body 2 can be fixed to the ventilation layer 4 by means of screws, glue or tape. The tape is not limited to 3M tape, as long as the ventilation layer can be firmly fixed to the device body. Other fixing methods can also be selected according to actual needs, which are not limited here.

[0032] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may 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 herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device capable of adsorption and flotation, characterized in that: It includes a device body with an inner cavity and an air passage joint whose head extends into the inner cavity. The entire surface of the device body is covered with a ventilation layer having multiple randomly distributed pores. The air passage joint is also connected to the first ventilation port of a three-way joint. The second ventilation port of the three-way joint is connected to an air extraction pipeline through a first one-way valve, and the first one-way valve is used to prevent gas from entering the three-way joint from the air extraction pipeline. The third ventilation port of the three-way joint is connected to a blowing pipeline through a second one-way valve, and the second one-way valve is used to prevent gas from entering the blowing pipeline from the three-way joint. The air extraction pipeline is used to extract air to make the ventilation layer adsorb a hard operating object, and the blowing pipeline is used to blow air and cooperate with another adsorbable and air-floatable device to make a flexible operating object float between two ventilation layers; The ventilation layer is a non-woven fabric layer. The parameters of the non-woven fabric include: surface resistance is 1.0E+4Ω≤R<1.0E+11Ω, triboelectric power is -100V<U<+100V, flatness is 0.1mm. Utilizing the irregular characteristics of the non-woven fabric, the gas in the inner cavity is discharged through the irregular fine pores of the non-woven fabric, enabling the gas to act evenly on the articles placed on it and lifting the articles to achieve the effect of air floating. During vacuum adsorption, by evacuating the air in the inner cavity, a negative pressure is generated. When the article covers the surface of the non-woven fabric, the fine pores of the non-woven fabric are blocked, and under the action of the external pressure, the article is adsorbed on the surface of the non-woven fabric to achieve the adsorption effect.

2. The adsorbable and air-floating device according to claim 1, characterized in that: The air extraction pipeline includes a vacuum pressure regulator and a vacuum gauge connected to the first one-way valve, and also includes a vacuum pump with a vacuum valve.

3. The adsorbable and air-floating device according to claim 1, characterized in that: The blowing pipeline includes a blowing component, an oil pollution filtering component connected to the blowing component, and a first pressure gauge.

4. The adsorbable and air-floating device according to claim 3, characterized in that: There are also a precision pressure regulator, a second pressure gauge, a dew point meter, and a flow meter connected in sequence between the oil pollution filtering component and the second one-way valve, where the precision pressure regulator is connected to the second one-way valve.

5. The adsorbable and air-floating device according to claim 4, characterized in that: A straight-through filter is also connected between the three-way joint and the second one-way valve.

6. The adsorbable and air-floating device according to any one of claims 1 to 5, characterized in that: The shape of the device body is rectangular or circular.

7. The adsorbable and air-floating device according to any one of claims 1 to 5, characterized in that: The device body is an aluminum shell, a nylon shell, a UPE shell, a PEEK shell, a resin shell, or an iron shell.

8. The adsorbable and air-floating device according to any one of claims 1 to 5, characterized in that: There are fixing holes at the lower parts of the four corners of the device body.

9. The adsorbable and air-floating device according to any one of claims 1 to 5, characterized in that: The device body and the ventilation layer are fixed by screws, glue, or tape.

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