CN210012755U

CN210012755U - Novel coating equipment

Info

Publication number: CN210012755U
Application number: CN201920325077.4U
Authority: CN
Inventors: 王喜亮; 杜彦; 白明杰; 李龙
Original assignee: Tianjin CSG Energy Conservation Glass Co Ltd
Current assignee: SHENZHEN CSG APPLIED TECHNOLOGY Co.,Ltd.
Priority date: 2019-03-14
Filing date: 2019-03-14
Publication date: 2020-02-04
Anticipated expiration: 2029-03-14

Abstract

The utility model provides a novel coating equipment, conveyer belt including filter, conveying pipeline, hopper and conveying substrate, the hopper includes shell and two inner shells, the shell is the wedge of invering, and its inside cavity, bottom are equipped with the bar opening, the inside wall sliding connection of inner shell and shell, its bottom is followed the shell opening part and is popped out, and two relative two sides in inner shell bottom are parallel to each other, and when the bottom of two inner shells met, the bottom of hopper was sealed completely. This novel coating equipment, the liquid level structure that forms when contacting between coating film liquid and substrate reaches the even coating of coating film liquid on the glass substrate surface, and the glass substrate level is placed, and the coating film liquid is located the glass substrate upper surface, makes the cladding material further expand under the effect of gravity and paves, and the high-usage of coating film liquid, coating thickness is convenient controllable, is applicable to large tracts of land glass's coating film, and is difficult for producing the dead pixel.

Description

Novel coating equipment

Technical Field

The utility model relates to the technical field of glass production, in particular to novel coating equipment.

Background

In the field of coated glass production, common coating methods include a dip coating method, a spin coating method, a sputtering coating method, a coating method and a meniscus coating method, and the principle of the dip coating method is as follows: soaking the glass substrate in the solution, and uniformly pulling out the solution surface to form a layer of film on the surface of the glass substrate; the rotary coating method adopts a high-speed rotating device with adjustable rotating speed to drive a glass substrate to stably rotate at high speed in a horizontal plane, coating liquid is dripped onto the glass substrate from the upper part, and the liquid is thrown into a film by the rotating centrifugal force; the sputtering coating method is similar to spray painting, namely, a spray nozzle is used for spraying a mist coating liquid on a glass substrate, and a layer of uniform film is formed by utilizing the leveling action of the liquid; the basic principle of the coating method is that a coating liquid is brought onto a glass substrate by using an anilox roller; the meniscus coating method is characterized in that coating liquid is enabled to flow out from the upper part of a slit through a pump, a crescent liquid level structure is formed when a glass substrate is contacted with the coating liquid, and the glass substrate sweeps across the slit at a constant speed to form a uniform coating on the glass substrate.

Among the above coating processes, the dip coating method has a low utilization rate of the coating liquid, and the coating thickness is not uniformly distributed due to the action of gravity; the rotary coating method can only be suitable for the coating requirement of a small area due to the nonuniformity of the radial rate; the uniformity of the film thickness is deteriorated when the thickness exceeds 1 micron by the sputtering film coating method; the coating method is only suitable for flexible glass; the meniscus method is very demanding on the precision of the equipment processing.

Disclosure of Invention

In view of this, the present invention provides a novel coating apparatus to overcome the above-mentioned defects in the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a novel film coating device comprises a filter, a material conveying pipe, a hopper and a conveying belt for conveying substrates, wherein one end of the material conveying pipe is connected with a material cylinder, the opening of the other end of the material conveying pipe is positioned above the hopper, and the conveying belt is positioned below the hopper;

the hopper comprises an outer shell and two inner shells, wherein the outer shell is in an inverted wedge shape, the inner shell is hollow, a strip-shaped opening is formed in the bottom of the outer shell, the inner shells are slidably connected with the inner side wall of the outer shell, the bottom of the inner shell extends out from the opening of the outer shell, two opposite surfaces of the bottoms of the two inner shells are parallel to each other, and when the bottoms of the two inner shells are connected, the bottom of the hopper is completely closed.

Further, the upper portion border of shell is equipped with down the cornice, the upper portion border of inner shell is equipped with the cornice, it is parallel to each other and the position is relative with cornice down to go up the cornice.

Furthermore, a lifting device is arranged between the upper cornice plate and the lower cornice plate.

Further, a stirrer is arranged in the hopper.

Further, the stirrer comprises a rotating shaft and a spiral blade, the spiral directions of two sides of the spiral blade are opposite, and the transition position of the spiral direction is positioned in the middle of the rotating shaft.

Furthermore, the opening of the material conveying pipe is positioned above the middle part of the stirrer.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) according to the novel coating equipment, only a small amount of coating liquid is coated on the substrate, and the rest of the coating liquid is stored in the hopper, so that the utilization rate of the coating liquid is high, and the coating liquid cannot be polluted.

(2) This novel coating equipment, through the size of opening and the scanning rate control coating thickness of coating liquid on the substrate between the inner shell, coating thickness more conveniently controls.

(3) The novel coating equipment can coat glass substrates with different areas by changing the size of the hopper, and is suitable for coating large-area glass substrates.

(4) This novel coating equipment, through the liquid level structure that forms when contacting between coating liquid and substrate, reach the even coating of coating liquid on glass substrate surface, and glass substrate level is placed, and the coating liquid is located glass substrate upper surface, makes the cladding material further expand the paving under the effect of gravity, has alleviated the harsh requirement of meniscus method surface coating to equipment precision down to a certain extent.

(5) The novel coating equipment has more stable coating effect, is not easy to generate dead spots under the condition of normal operation of the equipment, and cannot be enlarged like a rotary coating method even if the dead spots are generated due to the fact that the glass substrate has individual dirty spots.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic view of the overall structure of a novel coating apparatus of the present invention;

FIG. 2 is a schematic view of a hopper structure of the novel coating equipment of the present invention;

FIG. 3 is a side view of the novel coating device of the present invention;

FIG. 4 is a schematic view of the contact between the coating material and the substrate of the novel coating apparatus of the present invention;

FIG. 5 is a schematic view of the coating material form before coating by the novel coating apparatus of the present invention;

fig. 6 is a schematic structural view of a lifting device of the novel coating equipment of the present invention.

Description of reference numerals:

1-a housing; 11-a slot; 12-a lower eaves plate; 2-inner shell; 21-half thread bolt; 22-upper eaves board; 221-a jack; 3-a stirrer; 4-a lifting device; 41-a base; 411-gear; 412-lever; 42-a lifting rod; 421-inserting rod; 43-a knob; 5-a substrate; 6-a conveyor belt; 7-a scaffold; 8-a filter; 9-a material conveying pipe; 10-coating material.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail with reference to the following examples with reference to the accompanying drawings:

a novel film coating device comprises a filter 8, a material conveying pipe 9, a hopper and a conveyor belt 6 for conveying a substrate 5, wherein one end of the material conveying pipe 9 is connected with the filter 8, the opening of the other end of the material conveying pipe is positioned above the hopper, and the conveyor belt 6 is positioned below the hopper;

the filter 8 is micron-sized and is used for filtering the coating liquid input into the hopper from the charging barrel and keeping the cleanliness of the coating liquid.

The hopper comprises an outer shell 1 and two inner shells 2, wherein the inner shells 2 are arranged in the outer shell 1, the outer shell 1 is in an inverted wedge shape, the inner shell is hollow, a strip-shaped opening is formed in the bottom of the outer shell, slotted holes 11 are formed in two sides of the outer shell 1, half tooth bolts 21 are arranged on the inner shells 2, the half tooth bolts 21 are inserted into the slotted holes 11, and the size of the half tooth bolts 21 is matched with the slotted holes 11, so that the inner shells 2 can slide up and down along the inner side walls of the outer shell 1.

The bottom of the inner shell 2 extends out from the opening at the bottom of the outer shell 1, two opposite surfaces at the bottoms of the two inner shells 2 are parallel to each other, when the bottoms of the two inner shells 2 are connected, the bottom of the hopper is completely closed, namely, the upper edges of two parallel planes at the bottom of the inner shell 2 are higher than the bottom surface of the outer shell 1, no notch is formed, and coating liquid cannot leak from two sides of the inner shell 2.

The upper portion border of shell 1 is equipped with cornice 12 down, the upper portion border of inner shell 2 is equipped with cornice 22, it is parallel to each other and the position is relative with cornice 12 down to go up cornice 22, it is equipped with elevating gear 4 down between cornice 22 and the cornice 12 down, elevating gear 4 includes sliding connection's base 41 and lifter 42, be equipped with multistage gear 411 and lever 412 in the base 41, gear 411 locates the outer knob 43 of base 41 through the rotation and takes place to rotate to lever 412 through being connected with it drives lifter 42 and reciprocates.

The lifting device 4 enables the lifting rod 42 to move finely by the principle of the multi-stage gear 411 and the lever 412, and the moving precision is in the micron order.

Be equipped with agitator 3 in the hopper, agitator 3 includes pivot and helical blade, the spiral direction of helical blade both sides is opposite, and the transition department of spiral direction is located the middle part of pivot.

The opening of the conveying pipe 9 is positioned above the middle part of the stirrer 3, namely above the position where the rotating direction of the helical blade changes, and the coating liquid flowing out of the conveying pipe 9 is conveyed by the helical blade to be dispersed to the whole hopper, so that the influence on the coating thickness due to uneven distribution of the coating liquid in the hopper is reduced, and the coating liquid is prevented from being solidified.

Before coating, the distance between two inner shells 2 needs to be adjusted, namely, the width of a gap between two planes at the bottom of each inner shell 2 is adjusted to be uniform by using a standard feeler gauge, and the distance between the bottom edge of each inner shell 2 and a glass substrate 5 is adjusted, so that the glass substrate 5 can contact a coating solution protruding from the gap at the bottom of each inner shell 2, and the inner shells 2 are prevented from contacting the surfaces of the glass substrates 5.

The gap between the bottoms of the two inner shells 2 is very narrow, the coating liquid has certain viscosity, the coating liquid cannot flow out from the gap between the inner shells 2 under the action of the surface tension of the coating liquid, and when the coating liquid at the bottom of the inner shell 2 contacts the glass substrate 5, the coating liquid is coated on the upper surface of the moving glass substrate 5 under the action of capillary phenomenon.

When coating, the controller controls the conveyor belt 6 to sweep from the gap of the inner shell 2 at a constant speed, the upper surface of the glass substrate 5 is contacted with the coating liquid flowing out of the gap of the inner shell 2 to adhere a layer of uniform coating liquid, and the coating process is finished when the upper surface of the glass substrate 5 is completely swept.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The novel coating equipment is characterized by comprising a filter (8), a conveying pipe (9), a hopper and a conveying belt (6) for conveying a substrate (5), wherein one end of the conveying pipe (9) is connected with the filter (8), the opening of the other end of the conveying pipe is positioned above the hopper, and the conveying belt (6) is positioned below the hopper;

the hopper includes shell (1) and two inner shells (2), shell (1) is the wedge of invering, and its inside cavity, bottom are equipped with the bar opening, the inside wall sliding connection of inner shell (2) and shell (1), its bottom is followed shell (1) opening part and is visited out, and two relative faces in two inner shells (2) bottom are parallel to each other, and when the bottom of two inner shells (2) met, the bottom of hopper was sealed completely.

2. The novel coating equipment according to claim 1, characterized in that: the upper portion border of shell (1) is equipped with cornice (12) down, the upper portion border of inner shell (2) is equipped with cornice (22), it is parallel to each other and the position is relative with cornice (12) down to go up cornice (22).

3. The novel coating equipment of claim 2, wherein: and a lifting device (4) is arranged between the upper eaves plate (22) and the lower eaves plate (12).

4. The novel coating equipment according to claim 1, characterized in that: a stirrer (3) is arranged in the hopper.

5. The novel coating equipment according to claim 4, wherein: the stirrer (3) comprises a rotating shaft and spiral blades, the spiral directions of two sides of each spiral blade are opposite, and the transition position of the spiral direction is positioned in the middle of the rotating shaft.

6. The novel coating equipment according to claim 4, wherein: the opening of the material conveying pipe (9) is positioned above the middle part of the stirrer (3).