WO2019169530A1

WO2019169530A1 - Conveying device and conveying method therefor

Info

Publication number: WO2019169530A1
Application number: PCT/CN2018/078032
Authority: WO
Inventors: 周黎斌; 任竹运
Original assignee: 深圳柔宇显示技术有限公司
Priority date: 2018-03-05
Filing date: 2018-03-05
Publication date: 2019-09-12
Also published as: CN111479620A; CN111479620B

Abstract

A conveying device, which is used for conveying a liquid raw material and which is characterized in that: the conveying device comprises a conveying pipe (10) and an air bubble removing device (20), the conveying pipe (10) comprising an input section (11) and an output section (13), and the air bubble removing device (20) comprising a liquid storage tank (21) that communicates with the output section (13) by means of a tube (215), as well as a valve (23) that is disposed at the intersection of the tube (215) and the output section (13). When the valve (23) communicates with the liquid storage tank (21) and the output section (13), a liquid raw material (302) flows from the input section (11) into the liquid storage tank (21) by means of the output section (13) and the tube (215) such that air in the conveying pipe (10) is discharged into the liquid storage tank (21), or such that the liquid raw material (302) in the liquid storage tank (21) is discharged from the tube (215) by means of the output section (13) and the input section (11), enabling the air in the conveying pipe (10) to be discharged.

Description

Material conveying equipment and conveying method thereof

Technical field

The invention relates to the technical field of manufacturing flexible screen substrates, in particular to a material conveying device and a conveying method thereof.

Background technique

The flexible screen has been widely used in the field of electronic devices because of its advantages of light weight, small size, flexibility, and portability. The existing flexible screen generally comprises an insulated flexible substrate. The flexible substrate is generally prepared by injecting a liquid material of the flexible substrate into a molding frame, and then heating and baking the liquid material in the molding frame. And curing. However, when the liquid material feeding device of the existing flexible screen substrate injects the liquid material into the forming frame, some air may exist in the conveying pipe of the liquid material, so that the liquid material has bubbles therein. A flexible substrate made of a liquid material with bubbles not only affects the quality of the flexible substrate, but also affects the layout of the circuits on the flexible substrate and the connections between the electronic devices.

Summary of the invention

Embodiments of the present invention provide a material feeding device and a material feeding method thereof, which can prevent bubbles from being injected into a liquid material to improve the quality of the flexible substrate.

A conveying device disclosed in an embodiment of the invention is used for conveying a liquid raw material, the conveying device comprises a conveying pipe and a bubble removing device, the conveying pipe comprises an input section and an output section, and the degassing device comprises a liquid storage tank connected to the output section through a material pipe, and a valve disposed at a intersection of the material pipe and the output section, when the valve communicates with the liquid storage tank and the output section, a liquid raw material Flowing from the input section into the liquid storage tank through the output section and the material pipe to discharge air in the liquid supply pipe into the liquid storage tank, or liquid raw materials in the liquid storage tank The discharge tube is discharged through the output section and the input section, and the air in the delivery pipe can be discharged.

Wherein the intersection of the tube and the output section is adjacent to the output of the output section.

Wherein, the defoaming device further comprises a defoaming driving member connected to the liquid storage tank, and the defoaming driving member is configured to drive the liquid material in the liquid storage tank to flow into the conveying pipe.

Wherein the degassing driving member is a pressurized air pipe that communicates with the liquid storage tank, the pressurized air pipe is provided with a pressure valve, and the pressure valve is used for controlling the pressurized gas pipe to be added to the liquid storage tank Air pressure.

Wherein, the defoaming driving member is a driving cylinder, the telescopic rod of the driving cylinder extends into the liquid storage tank, and the end of the telescopic rod is connected with a pressing plate, and the driving cylinder drives the pressing plate to slide to press the liquid storage tank The liquid feedstock flows into the feed pipe.

Wherein the defoaming device further comprises a vacuum tube communicating with the liquid storage tank, the vacuum tube is provided with a vacuum valve, wherein the vacuum valve is used for controlling the vacuum tube to vacuum the liquid storage pool to exclude the vacuum tube The air in the reservoir.

The storage tank is provided with a storage bag for storing liquid raw materials, and the storage bag is provided with a communication port, and the communication port communicates with the output section through the material pipe.

The storage bag is a telescopic bag, and the air bag is open at one end of the telescopic bag, and the air port is connected with a vacuum tube. The vacuum tube is provided with a vacuum valve, and the vacuum valve is used for controlling the The vacuum tube vacuums the telescopic bag to exclude air in the storage bag.

Wherein the valve is a three-way valve, the three-way valve can communicate with the liquid storage tank and the output section and disconnect the delivery pipe, or open the delivery pipe and disconnect the liquid storage The pool is in communication with the feed tube.

Wherein, the conveying device further comprises a liquid material conveying driving device, wherein the liquid material conveying driving device comprises a pressurized air inlet pipe connected to the raw material bottle, and an input section of the conveying pipe is inserted into the liquid raw material of the raw material bottle And the pressurized air inlet pipe applies a positive air pressure to the raw material bottle to cause the liquid raw material in the raw material bottle to flow into the feeding pipe from the input section.

Wherein, when the valve communicates with the liquid storage tank and the output section, the pressurized air inlet pipe applies a positive air pressure to the raw material bottle to pass the liquid raw material in the raw material bottle through the feeding pipe Flow into the reservoir until the air in the delivery tube is discharged into the reservoir.

Wherein, the pressurized air inlet pipe is provided with an air inlet valve, and the air inlet valve is used for controlling the pressurized air inlet pipe to add positive air pressure to the raw material bottle.

The liquid material conveying drive device further includes a support frame, a sliding mechanism slidably coupled to the support frame, and a driving mechanism for driving the sliding mechanism to slide, the sliding mechanism comprising a sliding connection to the support frame a sliding plate on the upper side, and a connecting block disposed on the sliding plate and sliding together with the sliding plate, the material conveying drive mechanism further comprising a connecting cover rotatably connected to the connecting block for connecting the raw material bottle, the pressing The air inlet pipe includes an air outlet section that passes through the connecting block and extends into the connecting cover, and the driving mechanism drives the sliding plate to slide to drive the connecting cover to move to cover the raw material bottle to make the air outlet The section is connected to the raw material bottle.

Wherein the input segment passes through the connecting block in the sliding direction of the sliding plate and extends into the connecting cover, the input segment slides together with the connecting block, and the inlet of the input segment extends The connection cover is provided.

The driving mechanism includes a driving member disposed on the sliding plate, a gear coupled to the driving member, and a rack disposed on the supporting frame and extending along a sliding direction of the sliding plate. The gear teeth are coupled to the rack, and the driving member drives the gear to rotate to drive the sliding plate to slide to insert or withdraw the input bottle.

Wherein the driving mechanism comprises a driving cylinder fixed to the support frame, and the driving cylinder drives the sliding mechanism to slide to insert or withdraw the raw material bottle from the input section.

The driving mechanism includes a motor fixed to the support frame, and a motor has a screw rod extending along a sliding direction of the sliding mechanism, and the sliding plate defines a screw hole corresponding to the screw rod. The rod is screwed into the screw hole, and the motor drives the screw to rotate to drive the sliding plate to slide.

A feeding method of a conveying device, comprising the following steps:

Providing a conveying device, the conveying device comprising a conveying pipe and a bubble removing device;

Excluding air in the delivery tube by means of a bubble removal device;

Carry out the feeding operation.

Wherein, the step "excluding the air in the conveying pipe by the defoaming device" comprises: opening an inlet valve, and operating the valve to connect the liquid storage tank and the conveying pipe; and pressurizing the gas pipe to add a positive air pressure to the raw material bottle, Pressing the liquid material of the raw material bottle into the inlet of the input section, and the liquid raw material flows into the liquid storage tank through the input section, the output section, the valve, the material pipe and the material inlet until all the air in the delivery pipe is discharged into the liquid storage tank .

Wherein, the step of “excluding air in the feed pipe by the defoaming device” comprises: opening a pressurizing valve to apply a positive air pressure to the liquid storage tank, and operating the valve to connect the liquid storage tank and the fuel feed. The tube is configured to allow the liquid material in the liquid storage tank to flow into the raw material bottle through the material pipe, the valve, the output section and the input section until the air in the delivery pipe is completely discharged.

A liquid storage tank is disposed at an output section of the delivery pipe of the conveying device described in the present application, the liquid storage tank and the output section are connected through the material pipe, and the intersection of the material pipe and the liquid storage pool is set a valve, the valve is operated to communicate the liquid storage tank with the feed pipe before inputting the liquid raw material into the molding frame of the flexible substrate of the flexible screen, and the liquid raw material is first input from the input section through the output section and the valve And a feed pipe flows into the liquid storage tank to discharge all the air in the liquid feed pipe into the liquid storage tank; or the pre-stored liquid raw material in the liquid storage tank passes through the material pipe, the valve, and the The discharge of the output section and the input section of the input section can also discharge the air in the delivery tube. Therefore, the liquid material conveyed by the feed pipe does not contain bubbles, and therefore, the formed flexible substrate does not contain bubbles, thereby improving the quality of the flexible substrate.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic structural view of a conveying device of a first embodiment provided by the present application.

Figure 2 is a schematic view showing the structure of the defoaming device of Figure 1.

Figure 3 is a schematic view showing the structure of the liquid material conveying drive device of Figure 1.

4 is a schematic structural view of a liquid material conveying drive device of the conveying device of the second embodiment provided by the present application.

FIG. 5 is a schematic structural view of a bubble removing device of a conveying device according to a third embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the following description of the embodiments of the invention, reference to the claims Directional terms mentioned in the present invention, for example, "upper", "lower", "front", "back", "left", "right", "inside", "outside", "side", etc., only The directional terminology is used to describe and understand the invention in a better and clearer manner, and does not indicate or imply that the device or component referred to must have a particular orientation, in a particular orientation. The construction and operation are therefore not to be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. The ground connection, or the integral connection; may be a mechanical connection; it may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

Please refer to FIG. 1. FIG. 1 is a schematic structural diagram of a material conveying device according to a first embodiment of the present application. The conveying device 100 is configured to convey the liquid raw material 302 in the raw material bottle 300. The conveying device 100 includes a feeding pipe 10 and a defoaming device 20. The delivery tube 10 includes an input section 11, an output section 13, and a flexible tubular section 15 connected between the input section 11 and the output section 13. The bubble removing device 20 includes a reservoir 21 that communicates with the output section 13 through a tube 215, and a valve 23 disposed at the intersection of the tube 215 and the output section 13. When the valve 23 communicates with the liquid storage tank 21 and the delivery pipe 10, the liquid raw material 302 flows from the input section 11 into the liquid storage tank 21 through the flexible pipe section 15, the output section 13, the valve 23 and the material pipe 215, so as to feed the material. The air in the tube 10 is discharged into the liquid storage tank 21; or the liquid raw material 302 pre-stored in the liquid storage tank 21 is discharged from the feeding port of the input section 11 through the material pipe 215, the valve 23, the output section 13 and the flexible pipe body section 15. The air in the delivery pipe 10 can also be discharged.

Preferably, the intersection of the tube 215 and the output section 13 is adjacent to the output port 132 of the output section 13.

In this embodiment, the valve 23 is a three-way valve, and the three-way valve can be operated to connect the reservoir 21 and the output section 13 and disconnect the delivery pipe 10, or open the delivery pipe 10 and disconnect the liquid storage tank 21 and The communication tube 10 is connected.

A reservoir 21 is disposed at the output port 132 of the output section 13 of the delivery tube 10 of the delivery device 100 of the present application. The reservoir 21 and the output section 13 are communicated through the tube 215, and the tube 215 and the reservoir 21 are connected. The intersection is provided with a valve 23, and before the liquid supply 302 is input into the molding frame of the flexible substrate of the flexible screen, the valve 23 is operated to connect the liquid storage tank 21 with the delivery pipe 10, and the liquid raw material 302 is input first. The section 11 flows into the liquid storage tank 21 through the flexible pipe section 15, the output section 13, the valve 23 and the material pipe 215, so that all the air in the delivery pipe 10 is discharged into the liquid storage tank 21, and then the valve 23 is operated to store The liquid pool 21 is disconnected from the feed pipe 10 and the feed pipe 10 is opened to feed the liquid material 302 through the feed pipe 10 to the molding frame of the flexible substrate, thereby forming a bubble-free flexible substrate. In addition, if the liquid material 302 has been stored in the reservoir 21, before the liquid material 302 is input into the molding frame of the flexible substrate of the flexible screen, the valve 23 is first operated to make the reservoir 21 and the material. The tube 10 communicates with and disconnects the feed pipe 10, and the liquid material 302 in the liquid storage tank 21 is discharged from the material port 215, the valve 23, the output section 13 and the flexible pipe section 15 from the feed port 112 of the input section 11 to feed the material. After the air in the tube 10 is completely discharged, the port 112 of the input section 11 is inserted into the liquid material 302 of the raw material bottle 300, and the valve 23 is operated to disconnect the reservoir 21 from the delivery tube 10 and open the delivery tube 10. The liquid material 302 is fed through the feed pipe 10 to the forming frame of the flexible substrate. Since there is no air in the delivery pipe 10, that is, the liquid material 302 conveyed by the delivery pipe 10 does not contain air bubbles, the formed flexible substrate also contains no air bubbles, thereby improving the quality of the flexible substrate.

Please refer to FIG. 1 and FIG. 2 together. FIG. 2 is a schematic structural view of the defoaming device of FIG. The bubble removing device 20 further includes a bubble removing driving member 22 connected to the reservoir 21 for driving the liquid material 302 in the reservoir 21 to flow into the delivery pipe 10.

A liquid accommodating space 213 is disposed in the liquid storage tank 21, and the liquid material 302 is stored in the accommodating space 213. The liquid storage tank 21 defines a through hole 214 communicating with the accommodating space 213. The through hole 214 is connected to the material pipe 215 through a connecting member 216, and the end of the material pipe 215 away from the through hole 214 communicates with the output portion 13 through the valve 23. The bubble removing driving member 22 can drive the liquid raw material 302 in the accommodating space 213 to flow through the material pipe 215, the valve 23 flows into the conveying pipe 10, and is discharged from the material port 112 of the input section 11 to discharge the air in the conveying pipe 10. Discharged from the spout 112. The connecting member 216 is detachably coupled to the through hole 214 for facilitating replacement of the material tube 215 or the reservoir 21.

In this embodiment, the bubble removing driving member 22 is a pressurized air pipe that communicates with the receiving space 213 of the liquid storage tank 21, and the pressurized air pipe is provided with a pressurizing valve 222 for controlling the pressurized air pipe. A positive air pressure is applied to the inward receiving space 213. That is, when the pressurizing valve 222 is opened, the pressurized air pipe communicates with the accommodating space 213, and the valve 23 is operated to communicate the material pipe 215 with the delivery pipe 10, and the pressurized air pipe inputs positive air pressure into the accommodating space 213. The liquid material 302 of the accommodating space 213 is discharged from the opening 112 of the input section 11 through the through hole 214, the material pipe 215, the valve 23, the output section 13, and the flexible pipe section 15 to remove the air in the discharge pipe 10.

In this embodiment, the liquid storage tank 21 is a rectangular box including a rectangular bottom plate 2101, four side plates 2102 disposed on four sides of the bottom plate 2101, and a top portion connected to the four side plates 2102. A top plate 2103. The bottom plate 2101, the four side plates 2102 and the top plate 2103 together form a sealed receiving space 213. The through hole 214 is defined in the bottom plate 2101, and the pressurized air pipe passes through the top plate 2103.

In other embodiments, the through hole 214 may also be opened in one of the side plates 2102 of the liquid storage tank 21, and the pressurized air pipe may also be connected to the one side plate 2102 of the liquid storage tank 21. Preferably, the through hole 214 can be opened in the one side plate 2102 of the liquid storage pool 21 adjacent to the bottom plate 2101, and the pressurized air pipe can pass through the liquid storage tank 21, wherein one side plate 2102 is adjacent to the top plate 2103.

In other embodiments, the reservoir 21 may be a regular stereo box such as a circular box, a square box or an elliptical box, and the reservoir 21 may also be an irregular stereo box.

In this embodiment, a storage bag 25 for storing the liquid material 302 is disposed in the accommodating space 213 of the liquid storage tank 21, and a communication port 251 is defined in the storage bag 25, and the communication port 251 is connected to the material pipe 215 and is away from the output. One end of the segment 13 is such that the storage bag 25 communicates with the output section 13.

The storage bag 25 is made of a flexible material, and the liquid material 302 flows into the storage bag 25 through the input section 11, the flexible pipe section 15, the output section 13, the valve 23, the material pipe 215, and the communication port 251, so that the storage pipe 10 can be inside. All of the air is discharged into the storage bag 25. Since the density of the air is smaller than the density of the liquid material 302, the air entering the storage bag 25 is located at the top of the storage bag 25, and the liquid material 302 in the storage bag 25 is located at the bottom and does not contain air bubbles. When the pressurizing valve 222 is opened to apply positive air pressure to the accommodating space 213 of the liquid storage tank 21, and the valve 23 is opened to connect the material tube 215 with the feed pipe 10, the storage bag 25 is squeezed. The liquid material 302 at the bottom of the storage bag 25 is discharged from the communication port 251 through the material pipe 215, the output section 13 and the flexible pipe body section 15 from the material port 112 of the input section 11 so that the air in the delivery pipe 10 is completely discharged. . Further, the storage bag 25 is a telescopic bag, and an air port 253 is defined at one end of the telescopic bag away from the communication port 251. That is, the air port 253 is opened at the top of the telescopic bag. The top plate of the liquid storage tank 21 defines a through hole 217. A vacuum tube 255 is connected to the air port 253 through the through hole 217, and a connector 256 is disposed between the vacuum tube 255 and the through hole 217 of the top plate. The 256 has a sealing function to prevent air in the accommodating space 213 from leaking from the through hole 217. A vacuum valve 257 is disposed on the vacuum tube 255 for controlling the vacuum tube 255 to vacuum the telescopic bag. When the vacuum valve 257 is opened, the vacuum tube 255 draws a vacuum on the telescopic bag until the air in the telescopic bag is completely sucked.

Please refer to FIG. 1 and FIG. 3 together. FIG. 3 is a schematic structural view of the liquid material conveying driving device of FIG. The conveying device 100 of the present application further includes a liquid material conveying driving device 40. The liquid material conveying driving device 40 includes a supporting frame 42, a sliding mechanism 44 slidably coupled to the supporting frame 42, and a driving mechanism for driving the sliding mechanism 44 to slide. 46, and a material conveying drive mechanism 47. The support frame 42 includes two support plates 421 with opposite gaps, and a sliding mechanism 44 is disposed between the two support plates 421. The sliding mechanism 44 includes a sliding plate 441 slidably coupled between the two supporting plates 421, and a connecting block 443 disposed in the middle of the sliding plate 441 and sliding together with the sliding plate 441. The driving mechanism 46 includes a driving member 461 disposed on the sliding plate 441, a gear 463 connected to the driving member 461, and a supporting plate 421 disposed on the supporting frame 42 and extending along the sliding direction of the sliding plate 441. A rack 465, the gear 463 is coupled to the rack 465, and the driving member 461 drives the gear 463 to rotate, thereby driving the sliding plate 441 to slide along the extending direction of the rack 465. The material conveying drive mechanism 47 includes a pressurized air inlet pipe 471 and a connection cover 473 rotatably coupled to the connection block 443 for connecting the raw material bottles 300. The pressurized air inlet pipe 471 is provided with an air inlet valve 4711 for controlling the pressurized air inlet pipe 471 to apply a positive air pressure to the raw material bottle 300. The pressurized air inlet pipe 471 includes an air inlet section 4713, an air outlet section 4715 that passes through the connection block 443 and extends into the connection cover 473, and a hose section 4717 that is connected between the air inlet section 4713 and the air outlet section 4715. The input section 11 passes through the connecting block 443 in the sliding direction of the sliding plate 441, and the input section 11 is fixed to the connecting block 443 and slides together with the connecting block 443, and the input section 11 passes through the connecting cover 473. The inner side wall of the connecting cover 473 is provided with an internal thread 4731 corresponding to the external thread of the bottle mouth of the raw material bottle 300, and the inner side wall of the connecting cover 473 is provided with at least one stopper piece 4733 at a cover opening away from the connecting cover 473. The stopper piece 4733 is for preventing the raw material bottle 300 from being excessively rotated. The connection block 443 is sealed with the connection cover 473.

The first delivery process of the conveying device 100 of the present invention is as follows:

The raw material bottle 300 is connected, that is, the driving member 461 drives the gear 463 to rotate, thereby driving the sliding plate 441 to slide adjacent to the raw material bottle 300 in the extending direction of the rack 465, so that the input section 11 is inserted into the liquid material 302 of the raw material bottle 300. The connecting cover 473 is attached to the bottle opening of the raw material bottle 300, and the connecting cover 473 is rotated to screw the internal thread 4731 to the external thread of the bottle opening of the raw material bottle 300. At this time, the inlet 112 of the input section 11 is inserted into the liquid raw material 302 in the raw material bottle 300;

The air in the delivery pipe 10 is removed, that is, the inlet valve 4711 is opened, and the valve 23 is operated to communicate the reservoir 21 and the delivery pipe 10, and the pressurized inlet pipe 471 applies positive air pressure to the raw material bottle 300 to The liquid material 302 of the bottle 300 is pressed into the port 112 of the input section 11, and the liquid material 302 flows into the storage bag 25 through the input section 11, the flexible pipe section 15, the output section 13, the valve 23, the material pipe 215, and the communication port 251. Until the air in the delivery tube 10 is completely discharged into the storage bag 25;

The liquid material 302 is conveyed, that is, the valve 23 is operated to disconnect the communication between the liquid storage tank 21 and the feed pipe 10 and open the feed pipe 10, so that the feed pipe 10 feeds the liquid material into the molding frame of the flexible substrate. 302 can be.

The conveying device 100 of the present invention re-feeds, that is, re-feeds after replacing the raw material bottle 300. When there is no pre-stored liquid raw material 302 in the storage bag 25 in the liquid storage tank 21, according to the above-mentioned conveying device 100 The one-time conveying process carries out the feeding; when the liquid material 302 has been pre-stored in the storage bag 25 in the liquid storage tank 21, the following steps are performed:

The air of the storage bag 25 is taken out, that is, the vacuum valve 257 is opened, and the vacuum tube 255 is evacuated to the storage bag 25 until the air in the storage bag 25 is completely removed, and then the vacuum valve 257 is closed;

The raw material bottle 300 is connected, that is, the driving member 461 drives the gear 463 to rotate, thereby driving the sliding plate 441 to slide adjacent to the raw material bottle 300 in the extending direction of the rack 465, and inserting the input section 11 into the raw material bottle 300. The port 112 of the segment 11 has not been inserted into the liquid material 302; the pressure valve 222 is opened to apply positive air pressure in the pressurized gas pipe to the accommodating space 213, and the valve 23 is operated to communicate the reservoir 21 and the gas. The material tube 10 is such that the liquid material 302 in the storage bag 25 flows into the raw material bottle 300 through the material pipe 215, the valve 23, the output section 13, the flexible pipe body section 15 and the input section 11 until the air in the delivery pipe 10 is completely discharged. The driving member 461 drives the gear 463 to rotate to drive the nozzle 112 of the input section 11 into the liquid material 302 of the raw material bottle 300, closes the pressure valve 222 and operates the valve 23 to disconnect the reservoir 21 and the material. The tube 10 is connected and the delivery tube 10 is opened, so that the delivery tube 10 delivers the liquid material 302, that is, the inlet valve 4711 is opened, and the pressurized inlet tube 471 applies positive air pressure to the raw material bottle 300, so that the delivery tube 10 gives the The liquid material 302 may be input into the molding frame of the flexible substrate.

The delivery tube 10 of the delivery device 100 of the present application completely excludes the air of the delivery tube 10 before inputting the liquid material 302 into the molding frame of the flexible substrate of the flexible screen, thereby forming the molding into the flexible substrate. The liquid material 302 in the frame has no air bubbles, that is, the liquid material 302 conveyed by the delivery pipe 10 does not contain air bubbles. Therefore, the formed flexible substrate also contains no air bubbles, thereby improving the quality of the flexible substrate.

In other embodiments, the valve 23, the pressure valve 222, the vacuum valve 257 and the inlet valve 4711 of the conveying device of the present invention are all electronic valves, and the electronic valve and the driving member 461 can be controlled by a controller to realize Automatic feeding.

In other embodiments, while the liquid supply material 302 is being supplied to the accommodating space 213 of the liquid storage tank 21, the vacuum tube 255 also evacuates the accommodating space 213, and the two steps are simultaneously performed, which can be improved. The working efficiency of the conveying device.

In other embodiments, during the period in which the liquid storage tank 21 inputs the liquid raw material 302 to the delivery pipe 10, the driving mechanism 46 drives the sliding mechanism 44 to slide toward the raw material bottle 300 to drive the liquid inlet 112 of the input section 11 adjacent to the liquid level of the raw material bottle 300. When the air in the delivery pipe 10 is completely exhausted, the port 112 of the input section 11 is inserted into the liquid level of the raw material bottle 300. The two steps are performed simultaneously, which can improve the working efficiency of the conveying device.

In other embodiments, the storage bag 25 in the reservoir 21 may be omitted, and the liquid material 302 may be directly injected into the accommodating space 213. The vacuum tube 255 and the material tube 215 can directly communicate with the accommodating space 213 of the liquid storage tank 21, and the vacuum valve 257 is used to control the vacuum tube 255 to vacuum the liquid storage pool 21 to exclude the liquid storage tank 21 air. The material tube 215 can directly inject the liquid material 302 into the accommodating space 213.

Referring to FIG. 4, FIG. 4 is a schematic structural diagram of a liquid material conveying driving device of a conveying device according to a second embodiment of the present application. The material conveying apparatus of the second embodiment is similar in structure to the material conveying apparatus of the first embodiment, and the second embodiment is different from the first embodiment in that, in the second embodiment, the driving mechanism 46 is fixed to A driving cylinder 461a on one of the supporting plates 421 of the support frame 42 drives the sliding cylinder 44 to drive the sliding mechanism 44 to slide back and forth, thereby driving the input section 11 to insert or withdraw the raw material bottle 300.

In other embodiments, the driving mechanism 46 may be a motor fixed to one of the supporting plates 421. The motor is connected with a screw rod along the sliding direction of the sliding mechanism 44. The sliding plate 441 has a screw corresponding to the screw rod. a hole, the lead screw is screwed into the screw hole, and the motor drives the screw to rotate to drive the sliding plate 441 to slide.

In other embodiments, the driving mechanism 46 can drive the sliding plate 441 to slide by the combination of the wheel and the belt, that is, one of the supporting plates 421 is provided with a motor, and the motor is provided with a driving wheel, one of which supports A driven wheel is disposed at one end of the plate 421 away from the motor, and a belt extending along a sliding direction of the sliding plate 441 is connected between the driving wheel and the driven wheel, and the sliding plate is coupled to the belt, the motor Driving the drive wheel to rotate causes the belt to move, thereby sliding the slide plate 441.

Please refer to FIG. 5. FIG. 5 is a schematic structural diagram of a bubble removing device of a material conveying device according to a third embodiment of the present application. The material conveying apparatus of the third embodiment is similar in structure to the material conveying apparatus of the first embodiment, and the third embodiment is different from the first embodiment in that, in the third embodiment, the bubble removing driving member 22a is a driving cylinder. The telescopic rod 224 of the driving cylinder extends through the reservoir 21 and extends into the receiving space 213 . The end of the telescopic rod 224 is connected with a pressing plate 226 in the receiving space 213 . When it is required to press the liquid material 302 in the liquid storage tank 21 or the storage bag 25 into the delivery pipe 10, the driving cylinder drives the pressure plate 226 to slide to press the liquid material in the liquid storage tank 21 or in the storage bag 25. 302, thereby pressing the liquid material 302 into the delivery tube 10 to remove air from the delivery tube 10.

The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It is the scope of protection of the present invention.

Claims

A conveying device for conveying a liquid raw material, wherein the conveying device comprises a conveying pipe and a bubble removing device, the conveying pipe comprises an input section and an output section, and the debubbing device comprises a passing material a liquid storage tank connected to the output section, and a valve disposed at an intersection of the material pipe and the output section, when the valve communicates with the liquid storage tank and the output section, the liquid raw material is self-owned The input section flows into the liquid storage tank through the output section and the material pipe to discharge air in the liquid feeding pipe into the liquid storage tank, or the liquid material in the liquid storage tank is self-treated from the material The tube is discharged through the output section and the input section to discharge air in the feed pipe.
The material conveying apparatus according to claim 1, wherein an intersection of said tube and an output section is adjacent to an output port of said output section.
A material conveying apparatus according to claim 1 or 2, wherein said debubbing means further comprises a defoaming driving member connected to said liquid storage tank, said defoaming driving member for driving said liquid storage means The liquid feedstock in the tank flows into the feed pipe.
A material conveying apparatus according to claim 3, wherein said bubble removing driving member is a pressurized air pipe that communicates with said liquid storage tank, said pressurized air pipe is provided with a pressure valve, said pressure valve being used for The pressurized gas pipe is controlled to apply air pressure to the liquid storage tank.
The material conveying apparatus according to claim 3, wherein said debubbing driving member is a driving cylinder, said telescopic rod of said driving cylinder extends into said liquid storage tank, and said end of said telescopic rod is connected to a pressure plate, said The driving cylinder drives the pressure plate to slide to squeeze the liquid material in the liquid reservoir into the delivery pipe.
The material conveying apparatus according to claim 3, wherein said defoaming device further comprises a vacuum tube communicating with said liquid storage tank, said vacuum tube being provided with a vacuum valve for controlling said vacuum tube A vacuum is applied to the reservoir to remove air from the reservoir.
The material conveying apparatus according to claim 3, wherein a storage bag for storing the liquid material is disposed in the liquid storage tank, and a communication port is opened in the storage bag, and the communication port is connected through the material pipe The output segment.
The material conveying device according to claim 7, wherein the storage bag is a retractable bag, the end of the telescopic bag is away from the communication port, and the air port is connected with a vacuum tube, and the vacuum tube is connected to the vacuum tube. A vacuum valve is provided for controlling the vacuum tube to vacuum the telescopic bag to exclude air in the storage bag.
A material conveying apparatus according to claim 1, wherein said valve is a three-way valve, said three-way valve being capable of communicating said reservoir with said output section and disconnecting said delivery pipe, or Opening the feed pipe and disconnecting the liquid storage tank from the feed pipe.
A material conveying apparatus according to claim 1, wherein said conveying apparatus further comprises a liquid material conveying driving means, said liquid material conveying driving means comprising a pressurized air inlet pipe connected to the raw material bottle, said conveying material An input section of the tube is inserted into the liquid material of the raw material bottle, and the pressurized air inlet tube applies a positive air pressure to the raw material bottle to cause the liquid raw material in the raw material bottle to flow into the raw material from the input section. Inside the tube.
A material conveying apparatus according to claim 10, wherein said pressurized air inlet pipe applies a positive air pressure to said raw material bottle when said valve communicates said liquid storage tank and said output section The liquid material in the raw material bottle flows into the liquid storage tank through the delivery pipe until the air in the delivery pipe is discharged into the liquid storage tank.
The material conveying apparatus according to claim 10, wherein said pressurized air inlet pipe is provided with an air inlet valve, and said air inlet valve is for controlling the pressurized air inlet pipe to apply a positive air pressure to the raw material bottle.
A material conveying apparatus according to claim 10, wherein said liquid material conveying driving device further comprises a support frame, a sliding mechanism slidably coupled to said support frame, and a driving mechanism for driving said sliding mechanism to slide The sliding mechanism includes a sliding plate slidably coupled to the support frame, and a connecting block disposed on the sliding plate and sliding together with the sliding plate, the material conveying drive mechanism further comprising a rotating connection for the connecting block for Connecting a connection cover of the raw material bottle, the pressurized air inlet tube includes an air outlet section extending through the connection block and extending into the connection cover, the driving mechanism driving the sliding plate to slide to drive the connection cover to move A cover is placed in the raw material bottle to connect the gas outlet section to the raw material bottle.
A material conveying apparatus according to claim 13, wherein said input section passes through said connecting block in a sliding direction of said sliding plate and extends into said connecting cover, said input section being connected with said connection The blocks slide together and the spout of the input section extends out of the connection cover.
A material conveying apparatus according to claim 13, wherein said driving mechanism comprises a driving member provided on said sliding plate, a gear coupled to said driving member, and disposed on said supporting frame and along said a rack extending in a sliding direction of the sliding plate, the gear toothing on the rack, the driving member driving the gear to rotate to drive the sliding plate to slide, so that the input segment is inserted or The raw material bottle is withdrawn.
A material conveying apparatus according to claim 13, wherein said driving mechanism comprises a driving cylinder fixed to said support frame, said driving cylinder driving said sliding mechanism to slide to insert said input section Or withdraw the raw material bottle.
A material conveying apparatus according to claim 13, wherein said driving mechanism comprises a motor fixed to said support frame, said motor extending a sliding rod in a sliding direction of said sliding mechanism, said sliding plate Corresponding to the screw rod, a screw hole is formed, the screw rod is screwed into the screw hole, and the motor drives the screw rod to rotate to drive the sliding plate to slide.
A feeding method of a conveying device, comprising the following steps:

Providing a conveying device, the conveying device comprising a conveying pipe and a bubble removing device;

Excluding air in the delivery tube by means of a bubble removal device;

Carry out the feeding operation.
A method of feeding a material conveying apparatus according to claim 18, wherein said step of "excluding air in the conveying pipe by means of a bubble removing means" comprises:

Opening an inlet valve, and operating a valve to connect the liquid storage tank and the delivery pipe; pressurizing the gas pipe to apply a positive air pressure to the raw material bottle, pressing the liquid raw material of the raw material bottle into the inlet of the input section, and the liquid raw material is input through the input section The output section, the valve, the material pipe and the material inlet flow into the liquid storage tank until all the air in the delivery pipe is discharged into the liquid storage tank.
A method of feeding a material conveying apparatus according to claim 18, wherein said step of "excluding air in the conveying pipe by means of a bubble removing means" comprises:

The pressurized valve is opened to apply positive air pressure to the liquid storage tank, and the valve is operated to connect the liquid storage tank and the delivery pipe, so that the liquid raw material in the liquid storage tank passes through the material pipe, the valve, the output section and the input section. Flow into the raw material bottle until the air in the delivery tube is completely discharged.