CN219856474U - Liquid supply mechanism and printing device comprising same - Google Patents

Abstract

The utility model discloses a liquid supply mechanism and a printing device. The liquid supply mechanism comprises a feed inlet, wherein the feed inlet receives liquid to be supplied from the outside; the discharging end is connected with the feeding port to receive the liquid to be supplied; the device comprises a discharge end, a plurality of discharge channels, at least two discharge channels and a slow flow node, wherein the discharge channels are arranged on the discharge end, and the liquid to be supplied flows out from a discharge port at the tail end of the discharge channel through the slow flow node. According to the liquid supply mechanism and the printing device comprising the same, provided by the embodiment of the utility model, the impact force in the liquid supply process is reduced, and the liquid supply quality is improved.

Description

Liquid supply mechanism and printing device comprising same

Technical Field

The utility model relates to the technical field of liquid supply, in particular to a liquid supply mechanism and a printing device comprising the same.

Background

In the process of manufacturing a display panel, a printing process is often involved, for example, an alignment film material is printed on a surface of a substrate in a solution state. The liquid supply mechanism is an important component in the printing process. The liquid to be supplied is sprayed between the contact surfaces of the scraper and the roller through the spray head; then the scraper uniformly coats the liquid to be supplied on the surface of the roller through the rotation of the roller; finally, the liquid to be supplied is transferred and printed on the surface to be printed through the roller.

In the prior art, a Nozzle (Nozzle) generally adopts a single-point type of ejection, and is affected by the angle and height of the Nozzle, the ejection pressure of liquid to be supplied, and the like, and the position point of the liquid to be supplied on the roller is changed, so that the surface of the roller is affected, abnormal ejection unevenness (Nozzle Mura) and the like are easily generated, and finally the quality of a panel is affected, and the productivity is reduced. In addition, such abnormal conditions occur more frequently due to the instability of the mechanism and the collision of the person. Accordingly, it is desirable to have a new liquid supply mechanism and printing apparatus including the same that overcomes the above-described problems.

Disclosure of Invention

In view of the above problems, an object of the present utility model is to provide a liquid feeding mechanism and a printing apparatus including the same, so as to reduce impact force during liquid feeding and improve liquid feeding quality.

According to an aspect of the present utility model, there is provided a liquid supply mechanism comprising:

the liquid supply device comprises a feed inlet, a liquid supply device and a liquid supply device, wherein the feed inlet receives liquid to be supplied provided by the outside;

the discharging end is connected with the feeding port to receive the liquid to be supplied; the device is characterized in that a plurality of discharging channels are arranged on the discharging end, at least two discharging channels are interwoven to form a slow flow node, and liquid to be supplied passes through the slow flow node and flows out of a discharging port at the tail end of the discharging channels.

Optionally, the discharge port is in contact with a first roller to apply the liquid to be supplied to a surface of the first roller, and the first roller is used for applying the liquid to be supplied.

Optionally, the liquid supply mechanism further comprises:

the groove is communicated with the feeding hole, the discharging end is arranged in the groove, and the liquid to be supplied flows through the feeding hole, the groove and the discharging end in sequence.

Optionally, the feed inlet is in communication with an upper half of the groove, at least a portion of the discharge end is disposed on a lower half of the groove, and the discharge outlet is located on an outer side of the groove.

Optionally, the liquid supply mechanism further comprises:

the spray head is connected with the feed inlet to provide the liquid to be supplied for the feed inlet.

Optionally, the liquid supply mechanism further comprises:

the fixed shaft is fixedly connected with the feed inlet to limit the relative position between the feed inlet and the spray head.

Optionally, the liquid supply mechanism further comprises:

the first clamp is positioned at one side of the discharge end; and

the second clamp is positioned at the other side of the discharging end,

the first clamp is matched with the second clamp; and fixing the discharge end under the cooperation of the first clamp and the second clamp.

Optionally, the liquid supply mechanism further comprises:

a spacing pin located between the first clamp and the second clamp to define a spacing between the first clamp and the second clamp,

the size of the discharging end is matched with the size of the limiting pin.

According to another aspect of the present utility model, there is provided a printing apparatus comprising:

a liquid supply mechanism as described above; and

the printing mechanism is connected with the liquid supply mechanism to receive the liquid to be supplied and print the liquid to be supplied to a position to be printed.

Optionally, the printing mechanism further comprises:

the first roller is contacted with the discharge hole to receive the liquid to be supplied;

the second roller is contacted with the first roller to receive the liquid to be supplied; the second roller is contacted with the position to be printed so as to print the liquid to be supplied to the position to be printed; and

the scraper is positioned on the first roller between the contact position of the discharge hole and the first roller and the contact position of the first roller and the second roller, and is contacted with the first roller so as to uniformly coat the liquid to be supplied on the surface of the first roller.

According to the liquid supply mechanism and the printing device provided by the embodiment of the utility model, the discharge end is provided with the discharge channel and the slow flow node, so that the liquid to be supplied can slowly flow out, thereby reducing adverse effects caused by excessive impact force in the liquid supply process and improving the liquid supply quality.

Further, a discharge hole on the discharge end is in direct contact with the roller, liquid is supplied to the roller in a coating mode, impact force in the liquid supplying process is reduced, coating of liquid to be supplied is realized, and uniformity of liquid supply is guaranteed.

Further, the liquid supply mechanism has simple structure, can be modified on the basis of the existing spray head, and has convenient use and wide application range.

Further, the size of the discharge end can be adjusted by adjusting the limiting pin in the liquid supply mechanism, so that the liquid supply mechanism can adapt to different process requirements.

Further, the relative position relation of the discharging end is fixed by the fixed shaft, so that the position point of the liquid supply is ensured not to change greatly, and the quality of the liquid supply is improved.

Drawings

The above and other objects, features and advantages of the present utility model will become more apparent from the following description of embodiments of the present utility model with reference to the accompanying drawings, in which:

fig. 1 shows a schematic structure of a liquid supply mechanism according to a first embodiment of the present utility model.

Fig. 2 shows a schematic structural diagram of a liquid supply mechanism according to a second embodiment of the present utility model.

Fig. 3 shows an exploded schematic view of a liquid supply mechanism according to a third embodiment of the present utility model.

Fig. 4 shows a schematic view of an application scenario of a printing apparatus according to an embodiment of the present utility model.

Detailed Description

Various embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts. For clarity, the various features of the drawings are not drawn to scale. Furthermore, some well-known portions may not be shown in the drawings.

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. Numerous specific details of the utility model, such as construction, materials, dimensions, processing techniques and technologies, may be set forth in the following description in order to provide a thorough understanding of the utility model. However, as will be understood by those skilled in the art, the present utility model may be practiced without these specific details.

It will be understood that when a layer, an area, or a structure is described as being "on" or "over" another layer, another area, it can be referred to as being directly on the other layer, another area, or another layer or area can be included between the layer and the other layer, another area. And if the component is turned over, that layer, one region, will be "under" or "beneath" the other layer, another region.

According to an aspect of the present utility model, a liquid supply mechanism, particularly a liquid supply mechanism applied in a manufacturing process of a display panel is provided.

Fig. 1 shows a schematic structural diagram of a liquid supply mechanism according to a first embodiment of the present utility model, and as shown in fig. 1, a liquid supply mechanism 100 according to a first embodiment of the present utility model includes a feed inlet 110 and a discharge end 120.

Specifically, the inlet 110 receives the liquid to be supplied from the outside. The liquid to be supplied is, for example, an alignment film stock solution, a polyimide stock solution, or the like required for a display panel. Optionally, the liquid supply mechanism 100 further includes a spray head (not shown in the figure). The spray head is connected to the feed inlet 110 to supply the liquid to be supplied to the feed inlet 110.

The discharge end 120 is connected to the inlet 110 to receive the liquid to be supplied. The discharge end 120 is provided with a plurality of discharge channels 121, and at least two discharge channels 121 are interwoven to form a slow flow node 122 (shown by a dashed box in the figure). Wherein, the liquid to be supplied flows out from a discharge port 123 at the tail end of the discharge channel 121 through a slow flow node 122. The positions of the different discharging channels that are mutually crossed and communicated are, for example, slow flow nodes, and the slow flow nodes can slow down the flow speed of the liquid to be supplied in the discharging end 120. Optionally, the discharge end 120 is provided with a sponge structure, i.e. a plurality of (fine) discharge channels 121 are interwoven to form a structure including a plurality of slow flow nodes 122.

Optionally, a sponge structure is provided on the discharge end 120, made of a (sponge-type) porous material. The porous material may be flexible or rigid. Under the action of gravity, the liquid to be supplied flows out through the porous material (discharge end 120) in a penetrating manner.

In an alternative embodiment of the present utility model, the discharge port 123 is in contact with a first roller (printing mechanism) for applying the liquid to be supplied to the surface of the first roller, wherein the first roller is used for the application of the liquid to be supplied.

In an alternative embodiment of the present utility model, the liquid supply mechanism 100 further includes a first clamp 131 and a second clamp 132. The first clamp 131 is located at one side of the discharge end 120. The second clamp 132 is located on the other side of the outfeed end 120. Wherein, the first clamp 131 and the second clamp 132 are matched, and the discharging end 120 is fixed under the cooperation of the first clamp 131 and the second clamp 132.

In the embodiment of the utility model, the discharge channel and the buffer nodes on the discharge end are arranged, so that the liquid to be supplied can slowly flow out, and the adverse effect caused by excessive impact force in the liquid supply process is reduced. Further, the discharge hole on the discharge end is in direct contact with the roller, and liquid is supplied to the roller in a coating mode, so that the impact force in the liquid supply process is reduced, the primary coating is realized, and the uniformity of the liquid supply is ensured.

Fig. 2 shows a schematic structural diagram of a liquid supply mechanism according to a second embodiment of the present utility model, and as shown in fig. 2, the liquid supply mechanism 100 according to the second embodiment of the present utility model includes a fixed shaft 140, a first clamp 131, a discharge end 120, a limiting pin 150, and a second clamp 132.

Optionally, the liquid supply mechanism 100 further comprises a recess 130. The groove 130 communicates with the inlet 110, and the outlet 120 is disposed in the groove 130. Wherein the liquid to be supplied flows through the inlet 110, the groove 130 and the outlet 120 in sequence. The feed port 110 and/or the recess 130 are formed, for example, by a first clamp 131 and a second clamp 132. Optionally, the inlet 110 communicates with an upper half of the recess 130, and at least a portion of the outlet 120 is disposed in a lower half of the recess 130. Wherein the outlet 123 is located outside the recess 130, for example, below the recess 130.

In an alternative embodiment of the present utility model, the liquid supply mechanism 100 further includes a spray head (not shown) and a stationary shaft 140. The spray head is connected to the feed inlet 110 to supply the liquid to be supplied to the feed inlet 110. The fixed shaft 140 is fixedly coupled to the inlet 110 to define a relative position (relationship) between the inlet 110 and the fixed shaft 140. Alternatively, the fixed shaft 140 is fixedly coupled with the showerhead to define a relative positional relationship between the fixed shaft 140 and the showerhead.

In an alternative embodiment of the present utility model, the liquid supply mechanism 100 further includes a stop pin 150. The stopper pin 150 is located between the first jig 131 and the second jig 132 to define a space between the first jig 131 and the second jig 132. Wherein the size of the discharge end 120 matches the size of the stop pin 150.

Fig. 3 shows an exploded schematic view of a liquid supply mechanism according to a third embodiment of the present utility model. As shown in fig. 3, the liquid supply mechanism 100 (which may also be a buffer mechanism) according to the third embodiment of the present utility model includes 5 single units, which are a fixed shaft 140, a first clamp 131, a discharge end (buffer layer) 120, a stopper pin 150, and a second clamp 132, respectively.

During the assembly of the liquid supply mechanism (buffer mechanism) 100, the first clamp 131 and the second clamp 132 clamp the stopper pin 150 and the discharge end 120 from both sides. The limiting pin 150 is used for expanding the first clamp 131 and the second clamp 132, and precisely controlling the gap between the first clamp 131 and the second clamp 132 according to the requirement of the process. At least a portion of the outfeed end 120 is, for example, a flexible material to be secured in the gap between the first clamp 131 and the second clamp 132.

The fixed shaft 140 is fixedly connected with the first clamp 131, so that the first clamp 131, the second clamp 132, the limiting pin 150 and the discharging end 120 are fixedly connected to other devices. The fixing shaft 140 can ensure that the relative position relationship between the discharge end and the liquid receiving surface (such as the first roller) to be supplied is unchanged, so that the stability of the liquid supplying position point is ensured.

The liquid supply mechanism described in the above embodiment has a simple structure, can be conveniently added on the existing equipment, and has good applicability.

According to another aspect of the present utility model, a printing apparatus, in particular a printing apparatus for use in a display panel, is provided.

Fig. 4 shows a schematic view of an application scenario of a printing apparatus according to an embodiment of the present utility model, and as shown in fig. 4, the printing apparatus according to an embodiment of the present utility model includes the liquid supply mechanism 100 and the printing mechanism described above. The printing mechanism is connected with the liquid supply mechanism 100 to receive the liquid to be supplied and print the liquid to be supplied to the position to be printed. The printing apparatus further includes a spray head 200, and the spray head 200 may also be included as part of the liquid supply mechanism 100.

Specifically, the printing mechanism includes a first roller 400, a second roller 500, and a doctor blade 300.

The first roller 400 is in contact with the discharge port 123 to receive the liquid to be supplied.

The second roller 500 contacts the first roller 400 to receive the liquid to be supplied. The second roller 500 contacts the position to be printed to print the liquid to be supplied to the position to be printed.

The scraper 300 is positioned on the first roller 400 between the contact position of the discharge port 123 and the first roller 400 and the contact position of the first roller 400 and the second roller 500, and contacts the first roller 400 to uniformly apply the liquid to be supplied to the surface of the first roller 400.

An application scenario of the printing apparatus according to an embodiment of the present utility model will be described with reference to fig. 4. The liquid supply mechanism 100 is, for example, a flexible-surface nozzle liquid supply structure, and is installed between the nozzle 200 and the scraper 300, and the discharge port 123 (sponge-type porous material surface/structure) thereof is attached to the surface of the first roller 400. The liquid to be supplied is sprayed between the grooves of the liquid supply mechanism 100 through the spray head 200, and flows to the surface of the first roller 400 through the lower discharge end 120 (sponge type porous material/structure) in a slow dipping manner, so that the coating of the liquid to be supplied is realized.

In the above embodiment of the present utility model, the porous structure on the discharge end is used to uniformly transport the liquid to be supplied to the surface of the first roller (no jet trace is generated), so that the impact force of the liquid to be supplied on the surface of the first roller is avoided, and the generation of abnormal conditions such as uneven jet (nozzlemura) is further avoided, and the quality of the display panel is ensured; compared with the prior art, the method also reduces downtime, improves production efficiency and reduces the workload of engineers. Further, on the basis of preliminary coating of the liquid supply mechanism, the scraper uniformly coats liquid to be supplied on the surface of the first roller, and scrapes off the liquid to be supplied which is unnecessary to actually need on the surface of the first roller, so that the final printing quality is improved.

It should be noted that in this document relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Embodiments in accordance with the present utility model, as described above, are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model and various modifications as are suited to the particular use contemplated. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims (10)

1. A liquid supply mechanism, comprising:

the liquid supply device comprises a feed inlet, a liquid supply device and a liquid supply device, wherein the feed inlet receives liquid to be supplied provided by the outside;

the discharging end is connected with the feeding port to receive the liquid to be supplied; the device is characterized in that a plurality of discharging channels are arranged on the discharging end, at least two discharging channels are interwoven to form a slow flow node, and liquid to be supplied passes through the slow flow node and flows out of a discharging port at the tail end of the discharging channels.

2. The liquid supply mechanism of claim 1, wherein the outlet is in contact with a first roller for applying the liquid to be supplied to a surface of the first roller, the first roller being for application of the liquid to be supplied.

3. The liquid supply mechanism of claim 1, further comprising:

the groove is communicated with the feeding hole, the discharging end is arranged in the groove, and the liquid to be supplied flows through the feeding hole, the groove and the discharging end in sequence.

4. A liquid supply mechanism according to claim 3, wherein the inlet is in communication with an upper half of the recess, at least a portion of the discharge end is disposed in a lower half of the recess, and the outlet is located outside of the recess.

5. The liquid supply mechanism of claim 1, further comprising:

the spray head is connected with the feed inlet to provide the liquid to be supplied for the feed inlet.

6. The fluid supply mechanism of claim 5, further comprising:

the fixed shaft is fixedly connected with the feed inlet to limit the relative position between the feed inlet and the spray head.

7. The liquid supply mechanism of claim 1, further comprising:

the first clamp is positioned at one side of the discharge end; and

the second clamp is positioned at the other side of the discharging end,

the first clamp is matched with the second clamp; and fixing the discharge end under the cooperation of the first clamp and the second clamp.

8. The fluid supply mechanism of claim 7, further comprising:

and the limiting pin is positioned between the first clamp and the second clamp to limit the space between the first clamp and the second clamp, and the size of the discharge end is matched with that of the limiting pin.

9. A printing apparatus, comprising:

the liquid supply mechanism of any one of claims 1-8; and

the printing mechanism is connected with the liquid supply mechanism to receive the liquid to be supplied and print the liquid to be supplied to a position to be printed.

10. The printing device of claim 9, wherein the printing mechanism further comprises:

the first roller is contacted with the discharge hole to receive the liquid to be supplied;

the second roller is contacted with the first roller to receive the liquid to be supplied; the second roller is contacted with the position to be printed so as to print the liquid to be supplied to the position to be printed; and

the scraper is positioned on the first roller between the contact position of the discharge hole and the first roller and the contact position of the first roller and the second roller, and is contacted with the first roller so as to uniformly coat the liquid to be supplied on the surface of the first roller.