WO2017124732A1 - 物料涂布设备及其控制方法 - Google Patents

物料涂布设备及其控制方法 Download PDF

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Publication number
WO2017124732A1
WO2017124732A1 PCT/CN2016/094363 CN2016094363W WO2017124732A1 WO 2017124732 A1 WO2017124732 A1 WO 2017124732A1 CN 2016094363 W CN2016094363 W CN 2016094363W WO 2017124732 A1 WO2017124732 A1 WO 2017124732A1
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WIPO (PCT)
Prior art keywords
air pressure
preset
flow rate
chamber
pressure value
Prior art date
Application number
PCT/CN2016/094363
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English (en)
French (fr)
Inventor
邵连柱
成磊
张兴凯
孙乃智
Original Assignee
京东方科技集团股份有限公司
北京京东方显示技术有限公司
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Application filed by 京东方科技集团股份有限公司, 北京京东方显示技术有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/513,671 priority Critical patent/US20180229259A1/en
Publication of WO2017124732A1 publication Critical patent/WO2017124732A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1007—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material
    • B05C11/1013—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material responsive to flow or pressure of liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
    • B05C5/0237—Fluid actuated valves
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/04—Mounting of components, e.g. of leadless components
    • H05K13/046—Surface mounting
    • H05K13/0469—Surface mounting by applying a glue or viscous material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material

Definitions

  • the invention relates to the field of preparation of display devices, in particular to a material coating device and a control method thereof.
  • TFT-LCD Thin Film Transistor Liquid Crystal Display
  • the ground is used in the field of high performance display.
  • the array substrate of the TFT-LCD includes a display area and a non-display area located around the display area.
  • the above non-display area is used to set circuit structures such as a drive circuit, a data lead, and a data terminal.
  • the surface of the circuit structure is usually coated with silica gel, so that the external water, oxygen and dust can be avoided to cause damage to the circuit structure and reduce the aging rate.
  • An existing silica gel coating apparatus includes a storage chamber 100 for containing silicone. Further, the silica gel coating apparatus further includes a knob type regulating valve 102 and a flow regulating rod 103 connected in the sealed chamber 101. By manually rotating the knob-type regulating valve 102, the flow regulating rod 103 can be moved in the direction of the arrow or downward, thereby adjusting the size of the discharge port 111 in the storage chamber 100 to adjust the flow rate of the silica gel. .
  • knob type regulating valve 102 needs manual adjustment, the adjustment precision is low, which results in a large deviation between the amount of the finally applied silica gel and the amount of the previously set silica gel, resulting in a problem of uneven coating, and further Reduced product quality.
  • the knob type regulating valve 102 is adjusted again, and the silica gel in the bad position needs to be removed for recoating, thereby increasing the preparation process time and reducing the production efficiency.
  • the embodiment of the invention provides a material coating device and a control method thereof, which can improve the control precision of the coating flow rate of the silica gel.
  • An aspect of an embodiment of the present invention provides a material coating apparatus including a storage chamber for accommodating materials, a pneumatic chamber, a flow adjustment rod, a gas pressure adjusting device, and a gas supply source; a storage chamber, and an end of the discharge port adjacent to the storage chamber is provided with an adjustment head for adjusting the size of the discharge port; the flow adjustment rod faces away from one end of the discharge port and the air pressure chamber An internal piston is connected; an output end of the air pressure adjusting device is connected to the air pressure chamber, an input end of the air pressure adjusting device is connected to the air supply source and is configured to receive a preset material flow rate of the discharge port The air pressure adjusting device converts the preset material flow rate into a preset air pressure value of the air pressure chamber that matches the preset material flow rate, and outputs the air supply source to the air supply source according to the preset air pressure value. The flow rate of the gas in the gas pressure chamber is controlled.
  • the air pressure adjusting device comprises a memory, a data processor and a pressure regulating valve;
  • the memory is configured to store the preset material flow rate, the preset air pressure value, and the preset material flow rate and the preset a matching relationship between the air pressure values;
  • the data processor is coupled to the memory, and configured to acquire a preset air pressure value that matches the preset material flow rate according to the preset material flow rate;
  • the pressure regulating valve is connected
  • the data processor, the air supply source, and the air pressure chamber are configured to control a flow rate of a gas outputted by the air supply source to the air pressure chamber according to the preset air pressure value.
  • the air pressure adjusting device further includes a gas pressure collector and a gas pressure calibrator; the gas pressure collector is connected at one end to the air pressure chamber, and the other end is connected to the air pressure calibrator for being in the air pressure chamber.
  • the air pressure value is collected and fed back to the air pressure calibrator; the pressure regulating valve is connected to the data processor through the air pressure calibrator, and the air pressure calibrator is configured to receive the air pressure value fed back by the air pressure collector And calibrating the flow rate of the output air pressure of the pressure regulating valve according to the preset air pressure value obtained by the data processor, so that the air pressure value in the air pressure chamber matches the preset air pressure value.
  • a barometer is further included, and the barometer is connected to the air pressure collector for displaying the air pressure value collected by the air pressure collector.
  • the air pressure adjusting device further includes a touch display panel for inputting and displaying the preset material flow.
  • the cylinder and the material supply chamber are further included; one end of the material supply chamber is connected to the cylinder, and the other end is connected to the storage chamber for supplying material to the storage chamber under the action of the cylinder.
  • the nozzle further includes a nozzle connected to the discharge port; a first sealing plug is disposed in a side of the nozzle near the discharge port, and the first sealing plug is disposed at a position corresponding to the discharge port for Pass through the first through hole of the material.
  • the adjustment head is tapered; on a side close to the adjustment head, the opening shape of the first through hole is an inverted cone shape, and the shape of the cone matches the shape of the inverted cone .
  • the adjustment head has a tubular structure, and an adjustment hole is disposed on a sidewall of the adjustment head.
  • the outer side of the storage chamber is provided with a second sealing plug at a position corresponding to the flow regulating rod, and the second sealing plug has a second through hole capable of passing through the flow regulating rod.
  • a side of the piston facing away from the flow regulating rod is connected with a spring, and the other end of the spring is connected with the top of the air pressure chamber.
  • a side of the piston facing away from the flow regulating rod is provided with a first guiding rod; a top of the air chamber is provided with a second guiding rod opposite to the first guiding rod; the first guiding rod and The second guiding rod penetrates the spring from both ends of the spring, respectively, for preventing the spring from further compressing when the first guiding rod contacts the second guiding rod.
  • a control method for controlling any of the material coating apparatuses as described above comprising: in an uncoating stage, an adjustment head on a flow regulating rod passes through the storage a discharge port of the cavity, the discharge port is closed; in the coating stage, the air pressure adjusting device receives the preset material flow rate of the discharge port, and converts into a pre-preparation of the air pressure chamber matching the preset material flow rate Setting a gas pressure value, and controlling a flow rate of the gas supply source according to the preset gas pressure value; and driving the flow regulating rod by a piston under the action of the gas having the preset gas pressure value in the air pressure chamber Moving in a direction away from the discharge opening, the adjustment head controls the size of the discharge opening.
  • the method includes: the preset material flow rate, the preset And a matching relationship between the air pressure value and the preset material flow rate and the preset air pressure value is stored in the memory; the data processor acquires a pre-match with the preset material flow rate according to the preset material flow rate Setting a pressure value; the air pressure collector will collect the air pressure value in the air pressure chamber and feed back to the air pressure calibrator; the air pressure calibrator receives the air pressure value fed back by the air pressure collector, and according to the Description
  • the preset air pressure value obtained by the data processor calibrates the flow rate of the output air pressure of the pressure regulating valve; the pressure regulating valve controls the flow rate of the gas output from the air supply source to the air pressure chamber.
  • Embodiments of the present invention provide a material coating apparatus and a control method thereof.
  • the material coating apparatus includes a storage chamber for accommodating materials, and further includes a gas pressure chamber, a flow adjustment rod, a gas pressure adjusting device, and a gas supply source.
  • the flow regulating rod extends through the storage cavity, and an adjusting head for adjusting the size of the discharging port is disposed at one end of the discharging port near the storage cavity.
  • One end of the flow regulating rod facing away from the discharge port is connected to the piston in the air pressure chamber.
  • the output end of the air pressure adjusting device is connected with the air pressure chamber, and the input end of the air pressure adjusting device is connected to the air supply source for receiving the preset material flow rate of the discharging port and converting into the air pressure chamber matching the preset material flow rate.
  • the preset air pressure value is controlled, and the flow rate of the gas supplied from the air supply source to the air pressure chamber is controlled according to the preset air pressure value.
  • the adjustment head is capable of adjusting the size of the discharge port. Therefore, in the non-coating stage, the adjustment head can close the discharge port. In the coating stage, the flow regulating rod is required to move away from the discharge port, so that the adjusting head can control the opening state of the discharging port. Specifically, the worker can input the preset required for coating through the air pressure adjusting device.
  • the material flow rate and the air pressure adjusting device can control the flow rate of the gas supplied from the air supply source to the air pressure chamber according to the preset material flow rate, so that the gas input to the air pressure chamber after the air supply source passes through the air pressure adjusting device can have the preset Pressure value.
  • the piston can drive the displacement of the flow regulating rod to move away from the discharge port, and the preset air pressure value matches the preset material flow rate, thereby enabling the discharge through the discharge.
  • the actual flow of the material at the mouth is equal or approximately equal to the preset material flow.
  • FIG. 1 is a schematic structural view of a silica gel coating device provided by the prior art
  • FIG. 2 is a schematic structural view of a material coating device according to an embodiment of the present invention.
  • Figure 3a is an enlarged schematic view of the adjustment head of Figure 2;
  • Figure 3b is a schematic view of the adjusting head of Figure 3a closing the discharge opening
  • Figure 4a is a schematic view of the adjusting head of Figure 3a adjusting the size of the discharge opening
  • Figure 4b is another schematic view of the adjustment head of Figure 3a adjusting the size of the discharge opening
  • Figures 5a and 5b are schematic views of the shapes of longitudinal sections of two different adjustment heads, respectively;
  • Figure 5c is a schematic structural view of an adjustment head provided with an adjustment hole
  • Figure 6a is a schematic view showing different displacements of the adjusting head fixed on the flow regulating rod at different pressure values
  • Figure 6b is a schematic view showing the opening state of the regulating head corresponding to the discharge port at different pressure values
  • FIG. 7 is a schematic structural view of another material coating device according to an embodiment of the present invention.
  • Figure 8 is an enlarged view of A in Figure 7;
  • Figure 9a is a schematic view showing the shape of the opening of the first through hole on the first sealing plug of Figure 8 as an inverted cone;
  • Figure 9b is a second schematic view showing the shape of the opening of the first through hole on the first sealing plug of Figure 8 being inverted tapered;
  • FIG. 10 is a flow chart of a method for controlling a material coating device according to an embodiment of the present invention.
  • FIG. 11 is a flow chart of a control method of another material coating device according to an embodiment of the present invention.
  • the embodiment of the present invention provides a material coating device, as shown in FIG. 2, which may include a storage cavity 100 for accommodating materials, and further includes a gas pressure chamber 11, a flow regulating rod 103, a gas pressure adjusting device 20, and a gas supply source. 30.
  • the material coated by the material coating device is not limited, and may be, for example, a silica gel or a frame sealant.
  • the flow regulating rod 103 extends through the storage chamber 100, and an end of the discharge port 111 near the storage chamber 100 is provided with an adjustment head 130 (as shown in FIG. 3a) for adjusting the size of the discharge port 111.
  • the adjusting head 130 can be fixed to the flow regulating rod 103 by a screw connection, a pasting connection, or the like, or the adjusting head 130 can be integrated with the flow regulating rod 103.
  • one end of the flow regulating rod 103 facing away from the discharge port is connected to the piston 110 in the air chamber 11.
  • the adjustment of the size of the discharge port 111 by the adjusting head 130 includes: on one hand, in the non-coating stage, the adjusting head 130 can completely pass through the discharging port 111 as shown in FIG. 3a, so that The discharge port 111 is completely closed as shown in Fig. 3b.
  • the coating stage when the flow regulating rod 103 is moved in the direction away from the discharge port 111 (Z direction in Fig. 3a), the size of the opening state of the discharge port 111 can be controlled.
  • the adjustment head 130 can be configured to be upper and lower, that is, the area of the cross section of the one end adjustment head 130 near the flow adjustment rod 103 is larger, and the cross section of the adjustment head 130 facing away from the end of the flow adjustment rod 103 is The area is small.
  • the cross section of the adjustment head 130 refers to a section obtained by cutting the flow regulating rod 103 perpendicular to the direction in which the flow regulating rod 103 extends (for example, in the O-O' direction shown in Fig. 3a).
  • the adjustment head 130 Since the adjustment head 130 has the above-mentioned structure of being large and small, when the displacement of the flow regulating rod 103 to the direction away from the discharge port 111 is larger, the more materials that the discharge port 111 can flow in the open state, the more Also.
  • the discharge port 111 in an open state, but the discharge port 111 in Figure 4a is blocked by the adjustment head 130, so that more material can flow through than the discharge port 111 in Figure 4b.
  • Flowing material ie Figure 4a
  • the opening state of the middle discharge port 111 is larger than the opening state of the discharge port 111 in FIG. 4b.
  • the displacement of the flow regulating rod 103 in the direction away from the discharge opening 111 (Z direction) in FIG. 4a is greater than the direction in which the flow regulating rod 103 in FIG. 4b faces away from the discharge opening 111 (Z direction). The displacement of the movement.
  • the longitudinal section of the adjustment head 130 may be triangular as shown in FIG. 3a, or may be an inverted trapezoid as shown in FIG. 5a or an arc as shown in FIG. 5b.
  • the present invention is not limited thereto, and as long as the movement of the flow regulating rod 103 away from the discharge port 111 (Z direction) can be ensured, the opening state of the discharge port 111 can be increased.
  • the longitudinal section of the adjustment head 130 refers to a section perpendicular to the cross section of the adjustment head 130.
  • the adjustment head 130 described above is generally a solid structure.
  • the adjustment head 130 can also be a hollow structure, such as a tubular structure.
  • an adjustment hole 114 may be disposed on the sidewall of the adjustment head 130.
  • the adjustment head 130 can be a cylinder as shown in Figure 5c.
  • the output end of the air pressure adjusting device 20 is connected to the air pressure chamber 11, and the input end of the air pressure adjusting device 20 is connected to the air supply source 30 for receiving the preset material flow rate of the discharging port 111, and converting The preset air pressure value of the air pressure chamber 11 matched by the material flow rate is set, and the flow rate of the gas output from the air supply source 30 to the air pressure chamber 11 is controlled according to the preset air pressure value, so that the air supply source 30 passes through the air pressure adjusting device 20
  • the gas input to the air pressure chamber 11 can have the above-described preset air pressure value.
  • the matching the preset air pressure value and the preset material flow rate specifically means, for example, when the preset material flow rates are 1/4Q, 1/2Q, and 3/4Q, respectively (Q is the outlet port 111 full When the material flow rate is on, the preset air pressure value matched with the preset material flow rate 1/4Q is a low pressure 0.01 MPa; the preset air pressure value matched with the preset material flow rate 1/2Q is a medium pressure 0.02 MPa; Set the preset pressure value of material flow 3/4Q matching to high pressure 0.03MPa.
  • the worker can input the preset material flow rate 1/4Q to the air pressure adjusting device 20, and at this time, the air pressure adjusting device 20 sets the gas output from the air supply source 30 to a low pressure of 0.01 MPa. It is sent to the air pressure chamber 11 so that the preset material flow rate 1/4Q matches the preset air pressure value 0.01 MPa. At this time, under the action of the preset material flow rate 1/4Q, the discharge port 111 is 1/4 open. status.
  • the material flow rate is 0.02 MPa, and under the action of the preset material flow rate 1/2Q, the discharge port 111 is in a state of 1/2 open; the preset material flow rate 3/4Q matches the preset air pressure value of 0.03 MPa, and Under the action of the preset material flow rate 3/4Q, the discharge port 111 is in a state of 3/4 open.
  • the output end of the air pressure adjusting device 20 is connected to the air pressure chamber 11, and as shown in FIG. 2, a vent hole 112 is disposed on the side wall of the air pressure chamber 11, so that the air pressure adjusting device 20 can be disposed through the hose 113.
  • the output end is connected to the vent hole 112.
  • the vent hole 112 can be formed on the side wall of the second chamber 02 as shown in FIG. Or it is made on the side wall of the first chamber 01.
  • the vent hole 112 can be formed on the side wall of the second chamber 02 as shown in FIG. 2 when the discharge port 111 needs to be opened, the flow regulating rod 103 moves in the direction Z away from the discharge port 111, this At this time, the air pressure adjusting device 20 supplies the gas having a positive pressure output from the air supply source 30 to the second chamber 02 through the vent hole 112.
  • the vent hole 112 can be formed on the side wall of the first chamber 01
  • the flow regulating rod 103 moves in the direction Z away from the discharge port 111, at this time, the air pressure
  • the regulating device 20 supplies the gas having a negative pressure output from the air supply source 30 to the first chamber 01 through the vent hole 112.
  • the position of the vent hole is not limited in the present invention. However, for convenience of description, the following embodiments are described by taking the vent hole 112 on the side wall of the second chamber 02 as an example.
  • Embodiments of the present invention provide a material coating apparatus, which includes a storage chamber for accommodating materials, and further includes a gas pressure chamber, a flow adjustment rod, a gas pressure adjusting device, and a gas supply source.
  • the flow regulating rod extends through the storage cavity, and an adjusting head for adjusting the size of the discharging port is disposed at one end of the discharging port near the storage cavity.
  • One end of the flow regulating rod facing away from the discharge port is connected to the piston in the air pressure chamber.
  • the output end of the air pressure adjusting device is connected with the air pressure chamber, and the input end of the air pressure adjusting device is connected to the air supply source for receiving the preset material flow rate of the discharging port and converting into the air pressure chamber matching the preset material flow rate. Presetting the air pressure value, and according to the preset air pressure value, the flow rate of the gas supplied from the air supply source to the air pressure chamber is performed. control.
  • the adjustment head is capable of adjusting the size of the discharge port. Therefore, in the non-coating stage, the adjustment head can close the discharge port. In the coating stage, the flow regulating rod is required to move away from the discharge port, so that the adjusting head can control the opening state of the discharging port. Specifically, the worker can input the preset required for coating through the air pressure adjusting device.
  • the material flow rate and the air pressure adjusting device can control the flow rate of the gas supplied from the air supply source to the air pressure chamber according to the preset material flow rate, so that the gas input to the air pressure chamber after the air supply source passes through the air pressure adjusting device can have the preset Pressure value.
  • the piston can drive the displacement of the flow regulating rod to move away from the discharge port, and the preset air pressure value matches the preset material flow rate, thereby enabling the discharge through the discharge.
  • the actual flow of the material at the mouth is equal or approximately equal to the preset material flow.
  • the air pressure adjusting device 20 may include a memory 201 and a data processor 202.
  • the memory 201 is configured to store a preset material flow rate, a preset air pressure value, and a matching relationship between the preset material flow rate and the preset air pressure value.
  • the data processor 202 is coupled to the memory 201 for obtaining a preset air pressure value that matches the preset material flow rate according to the preset material flow rate. In this way, after the user inputs the preset material flow, the data processor 202 directly calls the preset air pressure value matching the preset material flow in the memory 201 by means of addressing access. In this way, when the working environment or condition of the material coating device changes, the worker can match the preset material flow rate, the preset air pressure value, and the preset material flow rate with the preset air pressure value in the memory 201. Updates and settings to meet different needs.
  • the air pressure adjusting device 20 may further include a pressure regulating valve 205 connected to the data processor 202, the air supply source 30, and the air pressure chamber 11 for outputting the air supply source 30 according to the preset air pressure value.
  • the flow rate of the gas in the air chamber 11 is controlled.
  • the actual air pressure value of the gas input to the second chamber 02 through the vent hole 112 in order to make the air pressure adjusting device 20 equal or approximately equal to the above-described preset air pressure value. Can be the first The gas of the two chambers 02 is collected and fed back to the air pressure adjusting device 20, so that the air pressure outputted from the output end of the air pressure adjusting device 20 can be adjusted so that the actual air pressure value in the second chamber 02 and the preset air pressure value are Match.
  • the air pressure adjusting device 20 may further include a gas pressure collector 204, a gas pressure calibrator 203, and a pressure regulating valve 205 connected to the vent 112 of the air pressure chamber 11, as shown in FIG.
  • the air pressure collector 204 is connected to the air pressure chamber 11 through the vent 112, and the other end is connected to the air pressure calibrator 203 for passing the air vent 11 through the vent 112 (ie, the second vent 412 is provided).
  • the air pressure value in the chamber 02) is collected and fed back to the air pressure calibrator 203.
  • the pressure regulating valve 205 connected to the data processor 202 may mean that the pressure regulating valve 205 is connected to the data processor 202 through the air pressure calibrator 203, and the air pressure calibrator 203 is configured to receive the air pressure value fed back by the air pressure collector 204. And according to the preset air pressure value obtained by the data processor 202, the flow rate of the output air pressure of the pressure regulating valve 205 is calibrated so that the air pressure value in the air pressure chamber 11 matches the preset air pressure value.
  • the air pressure calibrator 203 may be provided with a comparator or a comparison circuit for the actual air pressure value in the second chamber 02 collected through the vent 112 and the preset acquired by the data processor 202.
  • the barometric pressure values are compared to facilitate adjustment of the gas pressure of the output gas of the pressure regulating valve 205 such that the actual barometric pressure value ultimately provided to the second chamber 02 is equal or approximately equal to the preset barometric pressure value.
  • the material stored in the storage chamber 100 as shown in FIG. 7 can be supplied through the material supply chamber 50 as shown in FIG. Specifically, one end of the material supply chamber 50 is connected to the cylinder 60, and the other end is connected to the storage chamber 100 for supplying material to the storage chamber 100 under the action of the cylinder 60. Thereby, the amount of material supplied in the storage chamber 100 can be accurately controlled by controlling the pressure of the gas input to the cylinder 60.
  • the present invention does not limit the types of gases supplied from the air supply source 30 and the cylinders 60. It can be air, inert gas, and the like. And the gas pressure of the gas supplied from the gas source 30 and the cylinder 60 may be a constant value.
  • the material coating apparatus further includes a barometer 21.
  • the air pressure gauge 21 is coupled to the air pressure collector 204 for displaying the air pressure value collected by the air pressure collector 204.
  • the pressure adjustment device further includes a touch display panel 206 for inputting and displaying a preset material flow rate.
  • the air pressure gauge 21 can be connected to the touch display panel 206 when the pressure gauge 21 is unfavorable for the staff to observe, so that the air pressure value on the air pressure gauge 21 can be touched.
  • the display panel 206 is displayed for display.
  • the nozzle 10 connected to the discharge port 111 may be provided at the discharge port 111.
  • a first sealing plug 12 may be disposed in the nozzle 10 at a position close to the discharge port.
  • the first sealing plug 12 is provided with a first through hole 115 (as shown in FIG. 8) for passing the material corresponding to the position of the discharge opening 111.
  • the enlarged view in FIG. 7 is as shown in FIG. 8.
  • the adjustment head 130 is tapered, that is, as shown in FIG. 3a, when the shape of the longitudinal section of the adjustment head 130 is triangular, the adjustment head 130
  • the discharge port 111 needs to be closed, and the diameter of the interface between the adjustment head 130 and the flow regulating rod 103 needs to be equivalent to the inner diameter of the discharge port 111.
  • the presence of the machining error may cause the adjustment head 130 to completely close the discharge port 111, which may cause material leakage.
  • the first sealing plug 12 is on the side close to the adjustment head 130, and the opening shape of the first through hole 115 is an inverted cone shape.
  • the circumference of the tapered adjustment head 130 can be sealed by the first sealing plug 12 having an inverted cone shape to avoid material leakage.
  • the taper of the adjusting head 130 matches the shape of the inverted taper of the first through hole 115.
  • the material can flow into the inverted tapered opening of the first through hole 115 through the gap between the adjustment head 130 and the discharge port 111 as shown in FIG. 9b.
  • the flow regulating rod 103 penetrates the storage chamber 100, the surface of the flow regulating rod 10 located in the storage chamber 100 is adhered with material, and when the piston 110 drives the flow regulating rod 103 to move in the direction Z away from the discharge port 111. The material adhered to the surface of the flow regulating rod 10 is taken out of the storage chamber 100, thereby contaminating the other components in the apparatus.
  • the outer side of the storage chamber 100 is provided with a second sealing plug 13 at a position corresponding to the flow regulating rod 103, and the second sealing plug 13 has a second through hole capable of passing through the flow regulating rod 103 (not shown) show).
  • the air supply source 30 stops supplying to the air pressure chamber 11.
  • the flow regulating rod 103 needs to move to a position close to the discharge port 111, thereby closing the discharge port 111.
  • a spring 14 may be connected to the side of the piston 110 facing away from the flow regulating rod 103 as shown in FIG. 7, and the other end of the spring 14 and the air pressure chamber 11 The tops are connected. In this way, during the coating process, since the second chamber 02 is filled with gas, the piston 110 is moved upward (Z direction), thereby compressing the spring 14, and when the coating is finished, the second chamber 02 is finished.
  • the charging gas is reduced or discharged, and the spring 14 in the compressed state is elastically restored, so that the piston 110 can be quickly pushed downward (opposite to the Z direction), thereby driving the flow regulating rod 103 to quickly close the discharge port 111, thereby further The outflow of excess material is avoided.
  • a first guide rod 15 is provided, and the top of the air chamber 11 is provided with a second guide rod 16 opposite to the first guide rod 15.
  • the first guiding rod 15 and the second guiding rod 16 respectively penetrate into the spring 14 from both ends of the spring 14 for preventing the spring 14 from further compressing when the first guiding rod 15 is in contact with the second guiding rod 16, thereby It is possible to prevent the elastic deformation of the spring 14 from being unrecoverable.
  • the first guide bar 15 and the second guide bar 16 can also guide the spring 14 to avoid sloshing during compression or stretching.
  • An embodiment of the present invention provides a control method for controlling any one of the material coating devices as described above. As shown in FIG. 10, the method may include:
  • the air pressure adjusting device 20 shown in FIG. 2 receives the preset material flow rate of the discharging port 111, and converts to a preset air pressure value of the air pressure chamber matched with the preset material flow rate, and according to the preset The air pressure value controls the flow rate of the output gas of the air supply source 30;
  • the piston 110 drives the flow regulating rod 103 to move away from the discharge port 111, and the adjusting head 130 controls the opening of the discharge port 111. size.
  • the adjustment head is capable of adjusting the size of the discharge port. Therefore, in the non-coating stage, the adjustment head can close the discharge port. In the coating stage, the flow regulating rod is required to be directed away from the discharge. The direction of the mouth moves, so that the adjusting head can control the opening state of the discharging port.
  • the staff can input the preset material flow required for coating through the air pressure adjusting device, and the air pressure adjusting device can according to the preset material flow rate. And controlling a flow rate of the gas supplied from the air supply source to the air pressure chamber, so that the gas input to the air pressure chamber after the air supply source passes through the air pressure adjusting device can have the preset air pressure value.
  • the piston can drive the displacement of the flow regulating rod to move away from the discharge port, and the preset air pressure value matches the preset material flow rate, thereby enabling the discharge through the discharge.
  • the actual flow of the material at the mouth is equal or approximately equal to the preset material flow.
  • the actual air pressure value of the gas input to the second chamber 02 through the vent hole 112 as shown in FIG. 7 can be made equal or approximately equal to the above-described preset air pressure value.
  • the gas of the second chamber 02 can be collected and fed back to the air pressure adjusting device 20, so that the air pressure outputted from the output end of the air pressure adjusting device 20 can be adjusted so that the actual air pressure value in the second chamber 02 is as described above.
  • the preset air pressure values match.
  • the control method is as shown in FIG. Shown, including:
  • S201 Store a preset material flow rate, a preset air pressure value, and a matching relationship between the preset material flow rate and the preset air pressure value in the memory 201.
  • the data processor 202 obtains a preset air pressure value that matches the preset material flow rate according to the preset material flow rate.
  • the air pressure collector 204 collects the air pressure value in the air pressure chamber 11 and feeds back to the air pressure calibrator 203.
  • the air pressure calibrator 203 receives the air pressure value fed back by the air pressure collector 204, and calibrates the flow rate of the output air pressure of the pressure regulating valve 205 according to the preset air pressure value acquired by the data processor 202, so as to be in the air pressure chamber 11.
  • the air pressure value matches the preset air pressure value.
  • the pressure regulating valve 205 controls the flow rate of the gas output from the air supply source 30 to the air pressure chamber 11 so that the air supply source 30 passes through the air pressure adjusting device 20 and is input to the air pressure chamber.
  • the gas of 11 can have the above preset pressure value.
  • the gas of the second chamber 02 can be collected through the above steps, and fed back to the air pressure adjusting device 20, so that the pressure of the gas outputted into the air pressure chamber 11 can be adjusted, so that the second chamber
  • the actual air pressure value in 02 matches the preset air pressure value.
  • the material coating apparatus and the control method thereof according to the present invention are not limited to the field of display device preparation, and can be applied to other industrial equipment requiring a coating material and a manufacturing process thereof.

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Abstract

一种物料涂布设备及其控制方法，物料涂布设备包括存储腔(100)、气压腔(11)、流量调节杆(103)、气压调节装置(20)以及供气源(30)。流量调节杆(103)贯穿存储腔(100)，且靠近存储腔(100)的出料口(111)的一端设置有调节头(130)；流量调节杆(103)背离出料口(111)的一端与气压腔(11)内的活塞(110)相连接。气压调节装置(20)的输出端与气压腔(11)相连接，输入端连接供气源(30)，用于接收出料口(111)的预设物料流量，转换为与预设物料流量相匹配的气压腔(11)的预设气压值，并根据预设气压值对所述供气源(30)输出至气压腔(11)的气体的流量进行控制。该物料涂布设备能够提高硅胶涂布流量的控制精度。

Description

物料涂布设备及其控制方法 技术领域
本发明涉及显示装置制备领域，尤其涉及一种物料涂布设备及其控制方法。
背景技术
TFT-LCD(Thin Film Transistor Liquid Crystal Display，薄膜晶体管-液晶显示器)作为一种平板显示装置，因其具有体积小、功耗低、无辐射以及制作成本相对较低等特点，而越来越多地被应用于高性能显示领域当中。
TFT-LCD的阵列基板包括显示区域和以及位于显示区域周边的非显示区域。上述非显示区域用于设置驱动电路、数据引线以及数据端子等电路结构。为了对上述电路结构中的元件或线路进行保护，通常会在该电路结构的表面涂布硅胶，从而能够避免外界的水、氧以及灰尘的侵蚀以造成电路结构的损坏，降低老化速率。
现有的硅胶涂布装置，如图1所示，包括用于容纳硅胶的存储腔100。此外，该硅胶涂布装置还包括在密闭腔101中相连接的旋钮式调节阀102以及流量调节杆103。通过人工手动对旋钮式调节阀102进行旋转，可以带动流量调节杆103沿箭头方向上或下运动，进而可以对存储腔100中的出料口111的大小进行调节，以实现对硅胶流量的调节。
然而，由于上述旋钮式调节阀102需要人工调整，因此，调节精度较低，从而导致最终涂布的硅胶量与预先设置的硅胶量存在较大的偏差，造成涂布不均匀的不良现象，进而降低了产品质量。并且当发生上述涂布不良时，需要停机，再次对旋钮式调节阀102进行调节，并且需要去除不良位置的硅胶，以进行重新涂布，从而增加了制备工艺时长，降低了生产效率。
发明内容
本发明的实施例提供一种物料涂布设备及其控制方法，能够提高硅胶涂布流量的控制精度。
为达到上述目的，本发明的实施例采用如下技术方案：
本发明实施例的一方面，提供一种物料涂布设备，包括用于容纳物料的存储腔，还包括气压腔、流量调节杆、气压调节装置以及供气源；所述流量调节杆贯穿所述存储腔，且靠近所述存储腔的出料口的一端设置有用于对所述出料口的大小进行调节的调节头；所述流量调节杆背离所述出料口的一端与所述气压腔内的活塞相连接；所述气压调节装置的输出端与所述气压腔相连接，所述气压调节装置的输入端连接所述供气源且用于接收所述出料口的预设物料流量，所述气压调节装置将该预设物料流量转换为与所述预设物料流量相匹配的所述气压腔的预设气压值，并根据所述预设气压值对所述供气源输出至所述气压腔的气体的流量进行控制。
优选的，所述气压调节装置包括存储器、数据处理器以及压力调节阀；所述存储器用于存储所述预设物料流量、所述预设气压值以及所述预设物料流量与所述预设气压值之的匹配关系；所述数据处理器与所述存储器相连接，用于根据所述预设物料流量获取与所述预设物料流量相匹配的预设气压值；所述压力调节阀连接所述数据处理器、所述供气源以及所述气压腔，用于根据所述预设气压值对所述供气源输出至所述气压腔的气体的流量进行控制。
优选的，所述气压调节装置还包括气压采集器、气压校准器；所述气压采集器一端连接所述气压腔，另一端与所述气压校准器相连接，用于对所述气压腔内的气压值进行采集，并反馈至所述气压校准器；所述压力调节阀通过所述气压校准器与所述数据处理器相连接，所述气压校准器用于接收所述气压采集器反馈的气压值，并根据所述数据处理器获取到的预设气压值，对所述压力调节阀的输出气压的流量进行校准，以使得所述气压腔内的气压值与所述预设气压值相匹配。
优选的，还包括气压表，所述气压表与所述气压采集器相连接，用于显示所述气压采集器采集到的气压值。
优选的，所述气压调节装置还包括触控显示面板，用于输入并显示所述预设物料流量。
优选的，还包括气缸和物料供给腔；所述物料供给腔的一端连接所述气缸，另一端连接所述存储腔，用于在所述气缸的作用下，向所述存储腔提供物料。
优选的，还包括与出料口相连接的喷嘴；所述喷嘴内靠近所述出料口一侧设置有第一密封塞，所述第一密封塞对应所述出料口的位置设置有用于通过物料的第一通孔。
优选的，所述调节头为锥形；在靠近所述调节头的一侧，所述第一通孔的开口形状为倒锥形，且所述锥形与所述倒锥形的形状相匹配。
优选的，所述调节头为管状结构，且所述调节头的侧壁上设置有调节孔。
优选的，所述存储腔的外侧在对应所述流量调节杆的位置设置有第二密封塞，所述第二密封塞上具有能够穿过所述流量调节杆的第二通孔。
优选的，所述活塞背离所述流量调节杆的一侧连接有弹簧，所述弹簧的另一端与所述气压腔的顶部相连接。
优选的，所述活塞背离所述流量调节杆的一侧设置有第一导向杆；所述气压腔顶部设置有与所述第一导向杆相对的第二导向杆；所述第一导向杆和所述第二导向杆分别从所述弹簧的两端穿入所述弹簧，用于在所述第一导向杆与所述第二导向杆接触时，阻止所述弹簧进一步压缩。
本发明实施例的另一方面，提供一种用于控制如上所述的任意一种物料涂布设备的控制方法，包括：在非涂布阶段，流量调节杆上的调节头穿过所述存储腔的出料口，将所述出料口关闭；在涂布阶段，气压调节装置接收所述出料口的预设物料流量，转换为与所述预设物料流量相匹配的气压腔的预设气压值，并根据所述预设气压值对所述供气源输出气体的流量进行控制；在所述气压腔内具有所述预设气压值的气体作用下，活塞带动所述流量调节杆向背离所述出料口的方向运动，所述调节头控制所述出料口开启的大小。
优选的，当所述气压调节装置包括存储器、数据处理器、气压采集器、气压校准器以及压力调节阀时，在涂布阶段所述方法包括：将所述预设物料流量、所述预设气压值以及所述预设物料流量与所述预设气压值之的匹配关系存入所述存储器；所述数据处理器根据所述预设物料流量获取与所述预设物料流量相匹配的预设气压值；所述气压采集器将对所述气压腔内的气压值进行采集，并反馈至所述气压校准器；所述气压校准器接收所述气压采集器反馈的气压值，并根据所述 数据处理器获取到的预设气压值，对所述压力调节阀的输出气压的流量进行校准；所述压力调节阀对所述供气源输出至所述气压腔的气体的流量进行控制。
本发明实施例提供一种物料涂布设备及其控制方法，该物料涂布设备包括用于容纳物料的存储腔，还包括气压腔、流量调节杆、气压调节装置以及供气源。具体的，流量调节杆贯穿存储腔，且靠近存储腔的出料口的一端设置有用于对出料口的大小进行调节的调节头。流量调节杆背离出料口的一端与气压腔内的活塞相连接。此外，气压调节装置的输出端与气压腔相连接，气压调节装置的输入端连接供气源，用于接收出料口的预设物料流量，转换为与预设物料流量相匹配的气压腔的预设气压值，并根据预设气压值对供气源输出至气压腔的气体的流量进行控制。
由于调节头能够对出料口的大小进行调节。因此在非涂布阶段，调节头可以将出料口关闭。在涂布阶段，需要流量调节杆向背离出料口的方向运动，从而使得调节头能够控制出料口开启状态的大小，具体的，工作人员可以通过气压调节装置输入涂布所需的预设物料流量，气压调节装置能够根据该预设物料流量，对供气源输出至气压腔的气体的流量进行控制，以使得供气源通过气压调节装置后输入至气压腔的气体能够具有上述预设气压值。气压腔内在具有预设气压值的气体的作用下，能够控制活塞带动流量调节杆向背离出料口方向运动的位移，由于预设气压值与预设物料流量相匹配，从而可以使得通过出料口的物料的实际流量与预设物料流量相等或近似相等。
这样一来，在上述物料涂布设备涂布的过程中，只需要人工输入预设物料流量，出料口物料的实际流量能够达到上述预设物料流量，而无需手动对物料的流量进行调节，从而提高物料涂布流量的控制精度，降低了涂布不良的产生几率，此外，由于控制精度的提高从而有效解决了由于涂布不良造成的停机时间，进而提高了生产效率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域 普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图进行改进以获得其他的等同实例。
图1为现有技术提供的一种硅胶涂布装置的结构示意图；
图2为本发明实施例提供的一种物料涂布设备的结构示意图；
图3a为图2中调节头的放大示意图；
图3b为图3a中调节头将出料口关闭的示意图；
图4a为图3a中调节头对出料口大小进行调节的一种示意图；
图4b为图3a中调节头对出料口大小进行调节的另一种示意图；
图5a和5b分别为两种不同调节头的纵向截面的形状示意图；
图5c为设置有调节孔的调节头的结构示意图；
图6a为固定于流量调节杆上的调节头在不同气压值下发生不同位移的示意图；
图6b为调节头在不同气压值下对应出料口不同开启状态的示意图；
图7为本发明实施例提供的另一种物料涂布设备的结构示意图；
图8为图7中A处的一种放大图；
图9a为图8中第一密封塞上的第一通孔的开口形状为倒锥形的示意图之一；
图9b为图8中第一密封塞上的第一通孔的开口形状为倒锥形的示意图之二；
图10为本发明实施例提供的一种物料涂布设备的控制方法流程图；
图11为本发明实施例提供的另一种物料涂布设备的控制方法流程图。
附图标记：
01-第一腔室；02-第二腔室；10-喷嘴；11-气压腔；12-第一密封塞；13-第二密封塞；14-弹簧；15-第一导向杆；16-第二导向杆；20-气压调节装置；201-存储器；202-数据处理器；203-气压校准器；204-气压采集器；205-压力调节阀；206-触控显示面板；21-气压表；30-供气源；50-物料供给腔；60-气缸；100-存储腔；101-密闭腔；102-旋钮式调节阀；103-流量调节杆；130-调节头；110-活塞；111-出料口；112-通气口；113-软管；114-调节孔；115-第一通孔。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例提供一种物料涂布设备，如图2所示，可以包括用于容纳物料的存储腔100，此外，还包括气压腔11、流量调节杆103、气压调节装置20以及供气源30。其中，本发明对该物料涂布设备涂布的物料不做限定，例如可以为硅胶、封框胶等。
具体的，流量调节杆103贯穿存储腔100，且靠近存储腔100的出料口111的一端设置有用于对出料口111的大小进行调节的调节头130(如图3a所示)。其中，该调节头130可以通过螺纹连接、粘贴连接等方式固定在流量调节杆103上，或者该调节头130可以与流量调节杆103为一体结构。此外，该流量调节杆103背离出料口的一端与气压腔11内的活塞110相连接。
需要说明的是，上述调节头130对出料口111的大小进行调节包括：一方面，在非涂布阶段，可以如图3a所示调节头130完全穿过所述出料口111，从而可以如图3b所示将出料口111完全关闭。另一方面，在涂布阶段，当流量调节杆103向背离出料口111的方向(图3a中的Z方向)运动时，能够控制出料口111开启状态的大小。具体的，可以将调节头130设置为上大下小的结构，即靠近流量调节杆103的一端调节头130的横截面的面积较大，背离流量调节杆103的一端调节头130的横截面的面积较小。其中，调节头130的横截面是指与垂直于流量调节杆103延伸方向对流量调节杆103进行剖切(例如沿图3a所示的O-O’方向)得到的截面。
由于调节头130为上述上大下小的结构，因此当流量调节杆103向背离出料口111的方向运动的位移越大时，处于开启状态出料口111能够流过的物料越多，反之亦然。例如图4a和图4b中出料口111均属于开启状态，但是图4a中出料口111被调节头130挡住的面积较小，因此能够流过的物料多于图4b中出料口111能够流过的物料，即图4a 中出料口111的开启状态大于图4b中出料口111的开启状态。在此情况下，相应的，图4a中流量调节杆103向背离出料口111的方向(Z方向)运动的位移大于图4b中流量调节杆103向背离出料口111的方向(Z方向)运动的位移。
此外，为了使得上述调节头130具有上大下小的结构，该调节头130的纵向截面可以如图3a所示为三角形，或者如图5a所示为倒梯形或者如图5b所示为圆弧形等等，本发明对此不做限定，只要能够保证流量调节杆103越背离出料口111的方向(Z方向)运动时，出料口111的开启状态越大即可。其中，调节头130的纵向截面是指与调节头130的横截面垂直的截面。
综上所述，上述调节头130通常为实心结构。而调节头130还可以为空心结构，例如管状结构。在此情况下，如图5c所示，该调节头130的侧壁上可以设置有调节孔114。通过控制流量调节杆103背离出料口111的方向Z运动的位移，以对存储腔100中的物料通过该调节孔114的数量进行调节，最终达到调节物料流量的目的。优选的，该调节头130可以为如图5c所示的圆柱体。
在此基础上，气压调节装置20的输出端与气压腔11相连接，该气压调节装置20的输入端连接供气源30，用于接收出料口111的预设物料流量，转换为与预设物料流量相匹配的气压腔11的预设气压值，并根据预设气压值对供气源30输出至气压腔11的气体的流量进行控制，以使得供气源30通过气压调节装置20后输入至气压腔11的气体能够具有上述预设气压值。
需要说明的是，所述预设气压值与预设物料流量相匹配具体是指，例如，当预设物料流量分别为1/4Q、1/2Q以及3/4Q(Q为出料口111全开时的物料流量)时，与该预设物料流量1/4Q匹配的预设气压值为低压0.01MPa；与预设物料流量1/2Q匹配的预设气压值为中压0.02MPa；与预设物料流量3/4Q匹配的预设气压值为高压0.03MPa。
在此情况下，当需要的流量为1/4Q时，工作人员可以向气压调节装置20输入预设物料流量1/4Q，此时气压调节装置20将供气源30输出的气体以低压0.01MPa输送至气压腔11，以使得预设物料流量1/4Q与预设气压值0.01MPa相匹配，此时，在预设物料流量1/4Q的作用下，出料口111处于1/4开启的状态。同理可得，预设气压值1/2Q与预设 物料流量0.02MPa相匹配，并在预设物料流量1/2Q的作用下，出料口111处于1/2开启的状态；预设物料流量3/4Q与预设气压值0.03MPa相匹配，并在预设物料流量3/4Q的作用下，出料口111处于3/4开启的状态。
具体的，由图6a可以看出，预设物料流量越大，对应的预设气压值越大，流量调节杆103沿背离出料口111的方向Z的位移越大，在此情况下，如图6b所示，预设气压值越大，出料口111的开启状态越大，出料口111的物料流量越大。从而可以看出预设气压值与预设物料流量相匹配。
此外，上述气压调节装置20的输出端与气压腔11相连接，可以是如图2所示，在气压腔11的侧壁上设置一通气孔112，从而可以通过软管113将气压调节装置20的输出端与通气孔112相连接。
由于气压腔11中的活塞110将气压腔11划分为第一腔室01和第二腔室02，因此，上述通气孔112可以如图2所示制作于第二腔室02的侧壁上，或者制作于第一腔室01的侧壁上。在通气孔112可以如图2所示制作于第二腔室02的侧壁上的情况下，当出料口111需要打开时，流量调节杆103沿背离出料口111的方向Z移动，此时，气压调节装置20通过通气孔112将供气源30输出的具有正压的气体提供至第二腔室02。或者，在通气孔112可以制作于第一腔室01的侧壁上的情况下，当出料口111需要打开时，流量调节杆103沿背离出料口111的方向Z移动，此时，气压调节装置20通过通气孔112将供气源30输出的具有负压的气体提供至第一腔室01。当然本发明对上述通气孔的位置不做限定，但是为了方便举例说明，以下实施例均是以将通气孔112制作于第二腔室02的侧壁上为例进行的说明。
本发明实施例提供一种物料涂布设备，该物料涂布设备包括用于容纳物料的存储腔，还包括气压腔、流量调节杆、气压调节装置以及供气源。具体的，流量调节杆贯穿存储腔，且靠近存储腔的出料口的一端设置有用于对出料口的大小进行调节的调节头。流量调节杆背离出料口的一端与气压腔内的活塞相连接。此外，气压调节装置的输出端与气压腔相连接，气压调节装置的输入端连接供气源，用于接收出料口的预设物料流量，转换为与预设物料流量相匹配的气压腔的预设气压值，并根据预设气压值对供气源输出至气压腔的气体的流量进行 控制。
由于调节头能够对出料口的大小进行调节。因此在非涂布阶段，调节头可以将出料口关闭。在涂布阶段，需要流量调节杆向背离出料口的方向运动，从而使得调节头能够控制出料口开启状态的大小，具体的，工作人员可以通过气压调节装置输入涂布所需的预设物料流量，气压调节装置能够根据该预设物料流量，对供气源输出至气压腔的气体的流量进行控制，以使得供气源通过气压调节装置后输入至气压腔的气体能够具有上述预设气压值。气压腔内在具有预设气压值的气体的作用下，能够控制活塞带动流量调节杆向背离出料口方向运动的位移，由于预设气压值与预设物料流量相匹配，从而可以使得通过出料口的物料的实际流量与预设物料流量相等或近似相等。
这样一来，在上述物料涂布设备涂布的过程中，只需要人工输入预设物料流量，出料口物料的实际流量能够达到上述预设物料流量，而无需手动对物料的流量进行调节，从而提高物料涂布流量的控制精度，降低了涂布不良的产生几率，此外，由于控制精度的提高从而有效解决了由于涂布不良造成的停机时间，进而提高了生产效率。
以下，对该气压调节装置20的具体结构进行详细的描述。如图7所示，该气压调节装置20可以包括存储器201以及数据处理器202。
其中，存储器201用于存储预设物料流量、预设气压值以及预设物料流量与预设气压值之间的匹配关系。数据处理器202与存储器201相连接，用于根据预设物料流量获取与预设物料流量相匹配的预设气压值。这样一来，当用户输入预设物料流量后，该数据处理器202在存储器201中，通过寻址访问的方式直接调用出与该预设物料流量相匹配的预设气压值。这样一来，当该物料涂布设备的工作环境或条件改变时，工作人员可以对存储器201中的预设物料流量、预设气压值以及预设物料流量与预设气压值之间的匹配关系进行更新和设定，从而能够满足不同的需求。
在此基础上，气压调节装置20还可以包括压力调节阀205，压力调节阀205连接数据处理器202、供气源30以及气压腔11，用于根据预设气压值对供气源30输出至气压腔11的气体的流量进行控制。然而为了使得气压调节装置20通过通气孔112输入至第二腔室02的气体的实际气压值能够与上述预设气压值相等或近似相等。可以对该第 二腔室02的气体进行采集，并反馈至气压调节装置20，从而能够对气压调节装置20输出端输出的气压进行调节，以使得第二腔室02中的实际气压值与上述预设气压值相匹配。
为了实现上述功能该气压调节装置20如图7所示，还可以包括气压采集器204、气压校准器203以及与气压腔11的通气口112相连接的压力调节阀205。
其中，气压采集器204一端通过上述通气口112与气压腔11相连接，另一端与气压校准器203相连接，用于将通过通气口112对气压腔11(即设置有通气口112的第二腔室02)内的气压值进行采集，并反馈至气压校准器203。
此外，上述压力调节阀205连接数据处理器202可以是指，压力调节阀205通过气压校准器203与数据处理器202相连接，该气压校准器203用于接收气压采集器204反馈的气压值，并根据数据处理器202获取到的预设气压值，对压力调节阀205的输出气压的流量进行校准，以使得气压腔11内的气压值与预设气压值相匹配。
需要说明的是，该气压校准器203中可以设置有比较器或者比较电路，用于对通过通气口112采集到的第二腔室02中的实际气压值与数据处理器202获取到的预设气压值进行对比，从而便于对压力调节阀205输出气体的气压进行调节，使得最终提供至第二腔室02中的实际气压值与预设气压值相等或近似相等。
进一步地，如图7所示的存储腔100中存储的物料可以通过如图7所示的物料供给腔50进行供给。具体的，物料供给腔50的一端连接气缸60，另一端连接存储腔100，用于在气缸60的作用下，向存储腔100提供物料。从而可以通过控制气缸60输入气体的压力，对存储腔100中的物料供给量进行精确的控制。
需要说明的是，本发明对供气源30和气缸60提供的气体种类不做限定。可以为空气、惰性气体等。且供气源30和气缸60提供的气体的气压可以为恒定的数值。
进一步的，为了能够直观的观测到气压采集器204采集到的气压值，该物料涂布设备还包括气压表21。该气压表21与气压采集器204相连接，用于显示气压采集器204采集到的气压值。
此外，为了便于用户将预设物料流量输入气压调节装置20，该气 压调节装置还包括触控显示面板206，用于输入并显示预设物料流量。需要说明的是，上述气压表21由于安装位置受限等原因，不利于工作人员观察时，该气压表21可以与触控显示面板206相连接，从而使得气压表21上的气压数值能够通过触控显示面板206进行显示。
进一步地，为了使得从出料口111流出的物料能够与被涂布的位置相对应，可以在出料口111处设置与该出料口111相连接的喷嘴10。此外，为了避免喷嘴10与出料口111的交界面处出现物料泄露，可以在喷嘴10内，靠近出料口的位置设置有第一密封塞12。并且，为了保证物料能够从喷嘴10喷出，该第一密封塞12对应出料口111的位置设置有用于通过物料的第一通孔115(如图8所示)。
在此基础上，图7中的放大图如图8所示，可以看出在调节头130为锥形，即如图3a所示，该调节头130纵向截面的形状为三角形时，调节头130需要将出料口111关闭，那么调节头130与流量调节杆103之间的交界面的直径需要与出料口111的内径尺寸相当。然而，在通常的加工过程中，由于加工误差的存在会导致调节头130无法将出料口111完全关闭，这样一来将导致物料泄露。
为了解决上述问题，对于锥形的调节头130，如图9a所示，上述第一密封塞12在靠近调节头130的一侧，上述第一通孔115的开口形状为倒锥形。从而在出料口111需要关闭时，可以通过具有倒锥形的第一密封塞12对锥形的调节头130周围进行密封，避免物料泄露。其中，该调节头130的锥形与第一通孔115的倒锥形的形状相匹配。
此外，当出料口111需要开启时，物料可以如图9b所示，通过调节头130与出料口111之间的间隙，流入上述第一通孔115上倒锥形的开口处。
进一步地，由于流量调节杆103贯穿该存储腔100，位于存储腔100中的流量调节杆10表面粘附有物料，当在活塞110带动流量调节杆103沿背离出料口111的方向Z移动时，流量调节杆10表面粘附有物料会被带出存储腔100，从而污染物料涂布装置中的其它部件。为了解决上述问题，该存储腔100的外侧在对应流量调节杆103的位置设置有第二密封塞13，第二密封塞13上具有能够穿过流量调节杆103的第二通孔(图中未示出)。
进一步地，当涂布工序结束后，供气源30停止向气压腔11提供 气体，此时流量调节杆103需要向靠近出料口111的位置移动，从而将出料口111关闭。为了提高出料口111关闭速度，避免多余的物料从出料口111泄露，可以如图7上述活塞110背离流量调节杆103的一侧连接有弹簧14，该弹簧14的另一端与气压腔11的顶部相连接。这样一来，在涂布的过程，由于第二腔室02中充入气体，使得活塞110向上运动(Z方向)，从而将弹簧14压缩，而当涂布结束后，第二腔室02中充入气体减少或排出，此时处于压缩状态的弹簧14发生弹性恢复，从而可以快速推动活塞110向下运动(与Z方向相反)，从而带动流量调节杆103快速将出料口111关闭，进而避免了多余物料的流出。
在此基础上，为了避免上述弹簧14在压缩的过程中，两端受到的压力过大从而导致弹簧14的弹性形变不可恢复，可以如图7所示在活塞110背离流量调节杆103的一侧设置有第一导向杆15，所述气压腔11的顶部设置有与第一导向杆15相对的第二导向杆16。并且，第一导向杆15和第二导向杆16分别从弹簧14的两端穿入弹簧14内，用于在第一导向杆15与第二导向杆16接触时，阻止弹簧14进一步压缩，从而可以避免弹簧14的弹性形变不可恢复。此外，该第一导向杆15和第二导向杆16还可以对弹簧14进行导向，避免在压缩或拉伸的过程中出现晃动的现象。
本发明实施例提供一种用于控制如上所述的任意一种物料涂布设备的控制方法，如图10所示，可以包括：
S101、在非涂布阶段，如图3a所示的流量调节杆103的调节头130穿过图2中存储腔100的出料口111，将出料口111关闭，从而可以避免存储腔100内的物料从出料口111中流出。
S102、在涂布阶段，如图2所示的气压调节装置20接收出料口111的预设物料流量，转换为与预设物料流量相匹配的气压腔的预设气压值，并根据预设气压值对供气源30输出气体的流量进行控制；
在此基础上，在气压腔11内具有上述预设气压值的气体作用下，活塞110带动流量调节杆103向背离出料口111的方向运动，所述调节头130控制出料口111开启的大小。
由于调节头能够对出料口的大小进行调节。因此在非涂布阶段，调节头可以将出料口关闭。在涂布阶段，需要流量调节杆向背离出料 口的方向运动，从而使得调节头能够控制出料口开启状态的大小，具体的，工作人员可以通过气压调节装置输入涂布所需的预设物料流量，气压调节装置能够根据该预设物料流量，对供气源输出至气压腔的气体的流量进行控制，以使得供气源通过气压调节装置后输入至气压腔的气体能够具有上述预设气压值。气压腔内在具有预设气压值的气体的作用下，能够控制活塞带动流量调节杆向背离出料口方向运动的位移，由于预设气压值与预设物料流量相匹配，从而可以使得通过出料口的物料的实际流量与预设物料流量相等或近似相等。
这样一来，在上述物料涂布设备涂布的过程中，只需要人工输入预设物料流量，出料口物料的实际流量能够达到上述预设物料流量，而无需手动对物料的流量进行调节，从而提高物料涂布流量的控制精度，降低了涂布不良的产生几率，此外，由于控制精度的提高从而有效解决了由于涂布不良造成的停机时间，进而提高了生产效率。
进一步地，为了使得气压调节装置20通过如图7所示的通气孔112输入至第二腔室02的气体的实际气压值能够与上述预设气压值相等或近似相等。可以对该第二腔室02的气体进行采集，并反馈至气压调节装置20，从而能够对气压调节装置20输出端输出的气压进行调节，以使得第二腔室02中的实际气压值与上述预设气压值相匹配。
为了实现上述功能，当气压调节装置20如图7所示包括存储器201、数据处理器202、气压采集器204、气压校准器203以及压力调节阀205时，在涂布阶段该控制方法如图11所示，包括：
S201、将预设物料流量、预设气压值以及预设物料流量与预设气压值之的匹配关系存入存储器201。
S202、数据处理器202根据预设物料流量获取与预设物料流量相匹配的预设气压值。
S203、气压采集器204对气压腔11内的气压值进行采集，并反馈至气压校准器203。
S204、气压校准器203接收气压采集器204反馈的气压值，并根据数据处理器202获取到的预设气压值，对压力调节阀205的输出气压的流量进行校准，以使得气压腔11内的气压值与预设气压值相匹配。
S205、压力调节阀205对供气源30输出至气压腔11的气体的流量进行控制，以使得供气源30通过气压调节装置20后输入至气压腔 11的气体能够具有上述预设气压值。
综上所述，通过上述步骤可以对该第二腔室02的气体进行采集，并反馈至气压调节装置20，从而能够对输出至气压腔11内气体的压力进行调节，以使得第二腔室02中的实际气压值与上述预设气压值相匹配。
另外，根据本发明的物料涂布设备及其控制方法不仅限于显示装置制备领域，其也可以应用于其它需要涂布物料的工业设备及其制造过程中。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (14)

  1. 一种物料涂布设备，包括用于容纳物料的存储腔和贯穿所述存储腔的流量调节杆，其特征在于，还包括气压腔、气压调节装置以及供气源；
    所述流量调节杆的靠近所述存储腔的出料口的一端设置有用于对所述出料口的大小进行调节的调节头；所述流量调节杆背离所述出料口的一端与所述气压腔内的活塞相连接；
    所述气压调节装置的输出端与所述气压腔相连接，所述气压调节装置的输入端连接所述供气源且用于接收所述出料口的预设物料流量，所述气压调节装置将该预设物料流量转换为与所述预设物料流量相匹配的所述气压腔的预设气压值，并根据所述预设气压值对所述供气源输出至所述气压腔的气体的流量进行控制。
  2. 根据权利要求1所述的物料涂布设备，其特征在于，所述气压调节装置包括存储器、数据处理器以及压力调节阀；
    所述存储器用于存储所述预设物料流量、所述预设气压值以及所述预设物料流量与所述预设气压值之的匹配关系；
    所述数据处理器与所述存储器相连接，用于根据所述预设物料流量获取与所述预设物料流量相匹配的预设气压值；
    所述压力调节阀连接所述数据处理器、所述供气源以及所述气压腔，用于根据所述预设气压值对所述供气源输出至所述气压腔的气体的流量进行控制。
  3. 根据权利要求2所述的物料涂布设备，其特征在于，所述气压调节装置还包括气压采集器、气压校准器；
    所述气压采集器一端连接所述气压腔，另一端与所述气压校准器相连接，用于对所述气压腔内的气压值进行采集，并反馈至所述气压校准器；
    所述压力调节阀通过所述气压校准器与所述数据处理器相连接，所述气压校准器用于接收所述气压采集器反馈的气压值，并根据所述数据处理器获取到的预设气压值，对所述压力调节阀的输出气压的流量进行校准，以使得所述气压腔内的气压值与所述预设气压值相匹配。
  4. 根据权利要求3所述的物料涂布设备，其特征在于，还包括气 压表，所述气压表与所述气压采集器相连接，用于显示所述气压采集器采集到的气压值。
  5. 根据权利要求1所述的物料涂布设备，其特征在于，所述气压调节装置还包括触控显示面板，用于输入并显示所述预设物料流量。
  6. 根据权利要求1所述的物料涂布设备，其特征在于，还包括气缸和物料供给腔；
    所述物料供给腔的一端连接所述气缸，另一端连接所述存储腔，用于在所述气缸的作用下，向所述存储腔提供物料。
  7. 根据权利要求1所述的物料涂布设备，其特征在于，还包括与出料口相连接的喷嘴；所述喷嘴内靠近所述出料口一侧设置有第一密封塞，所述第一密封塞对应所述出料口的位置设置有用于通过物料的第一通孔。
  8. 根据权利要求7所述的物料涂布设备，其特征在于，
    所述调节头为锥形；
    在靠近所述调节头的一侧，所述第一通孔的开口形状为倒锥形，且所述锥形与所述倒锥形的形状相匹配。
  9. 根据权利要求1所述的物料涂布设备，其特征在于，所述调节头为管状结构，且所述调节头的侧壁上设置有调节孔。
  10. 根据权利要求1所述的物料涂布设备，其特征在于，所述存储腔的外侧在对应所述流量调节杆的位置设置有第二密封塞，所述第二密封塞上具有能够穿过所述流量调节杆的第二通孔。
  11. 根据权利要求1所述的物料涂布设备，其特征在于，所述活塞背离所述流量调节杆的一侧连接有弹簧，所述弹簧的另一端与所述气压腔的顶部相连接。
  12. 根据权利要求11所述的物料涂布设备，其特征在于，所述活塞背离所述流量调节杆的一侧设置有第一导向杆；所述气压腔顶部设置有与所述第一导向杆相对的第二导向杆；
    所述第一导向杆和所述第二导向杆分别从所述弹簧的两端穿入所述弹簧内，用于在所述第一导向杆与所述第二导向杆接触时，阻止所述弹簧进一步压缩。
  13. 一种用于控制如权利要求1-12任一项所述的物料涂布设备的控制方法，包括：
    在非涂布阶段，流量调节杆上的调节头穿过所述存储腔的出料口，将所述出料口关闭；
    在涂布阶段，气压调节装置接收所述出料口的预设物料流量，转换为与所述预设物料流量相匹配的气压腔的预设气压值，并根据所述预设气压值对所述供气源输出气体的流量进行控制；
    在所述气压腔内具有所述预设气压值的气体作用下，活塞带动所述流量调节杆向背离所述出料口的方向运动，所述调节头控制所述出料口开启的大小。
  14. 根据权利要求13所述的物料涂布设备的控制方法，其特征在于，当所述气压调节装置包括存储器、数据处理器、气压采集器、气压校准器以及压力调节阀时，在涂布阶段所述方法包括：
    将所述预设物料流量、所述预设气压值以及所述预设物料流量与所述预设气压值之的匹配关系存入所述存储器；
    所述数据处理器根据所述预设物料流量获取与所述预设物料流量相匹配的预设气压值；
    所述气压采集器将对所述气压腔内的气压值进行采集，并反馈至所述气压校准器；
    所述气压校准器接收所述气压采集器反馈的气压值，并根据所述数据处理器获取到的预设气压值，对所述压力调节阀的输出气压的流量进行校准；
    所述压力调节阀对所述供气源输出至所述气压腔的气体的流量进行控制。
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