CN217202520U

CN217202520U - Structure for supplying cloth hot air to baking oven chamber of display glass substrate

Info

Publication number: CN217202520U
Application number: CN202220996854.XU
Authority: CN
Inventors: 潘明华; 万堃鋆
Original assignee: Jiangsu Meike Dingrong Intelligent Equipment Manufacturing Co ltd
Current assignee: Jiangsu Meike Dingrong Intelligent Equipment Manufacturing Co ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-08-16
Anticipated expiration: 2032-04-24

Abstract

The utility model discloses a display glass substrate baking oven cavity cloth hot air supply structure, a glass clamping frame is arranged in the baking oven cavity of the oven body, a hot air cavity is arranged in the oven cavity of the oven body, a heater and a blower are arranged in the hot air cavity, a filter and an air distributor are arranged between the hot air cavity and the baking oven cavity in sequence, and the air distributor comprises a plurality of ventilation holes with adjustable ventilation area; the air inlet pipe and the air outlet are also arranged on the furnace body, the air return channel and the air inlet pipe which are positioned in the furnace cavity of the furnace body are communicated with the hot air cavity, and the air return channel is communicated with the air outlet. The air distributor comprises a first air distribution plate and a second air distribution plate which are mutually overlapped, and ventilation holes are formed in the first air distribution plate and the second air distribution plate. The ventilation holes in the first air distribution plate and the second air distribution plate can be blocked in a staggered mode, and the first air distribution plate and the second air distribution plate are detachably connected and fixed through bolts. The cloth-supplying hot air structure not only can effectively filter baking hot air and ensure the cleanliness of the furnace chamber, but also can supply hot air uniformly and avoid the temperature difference of the furnace chamber.

Description

Structure for supplying cloth hot air to baking oven chamber of display glass substrate

Technical Field

The utility model relates to a glass substrate manufacturing equipment for flat-panel display, in particular to a supply and uniform distribution structure for baking hot air in a glass substrate baking oven.

Background

The flat panel display has the characteristics of small volume, light weight, low energy consumption, accurate image, high response speed of the screen and the like, and is widely applied to various electronic products such as various communication equipment, computers such as the internet, mobile phones, televisions and the like. The requirements for the surface defects of the glass substrate of the flat panel display are very strict, and especially, the phenomenon of conductive film breakage and short circuit in the panel production can be caused by the excessive surface particles, so that the performance and the yield of the glass substrate are seriously influenced. The pollution of the fine dust particles is caused by the paths of gas generated by the production process and needed to be introduced.

The existing glass substrate baking equipment mainly comprises a baking box body, a glass clamping frame and a furnace chamber heater, the structure is simpler, but hot air for baking the glass substrate is directly blown to the glass substrate on the clamping frame, so that a great amount of organic solvent volatilized by photoresist on the surface of the glass substrate in the baking process of the baking furnace causes pollution of the furnace chamber to attached particle substances, and dust particles introduced into air increase the pollution risk of the baking hot air, the cleanliness of the hot air in the baking chamber is difficult to control, then, defects are formed on the surface of the glass substrate, and the performance and the yield of the glass substrate are directly influenced. Meanwhile, the baking hot air is blown to the glass substrate on the clamping frame through the blower, and because the multi-layer substrates are actually placed on the clamping frame, the centralized blowing inevitably causes temperature difference on the furnace chamber and the glass substrates on different layers, so that the baking is not uniform, and the quality and the performance of the glass substrates are also seriously affected.

SUMMERY OF THE UTILITY MODEL

Not enough to the above that prior art exists, the utility model aims to solve the technical problem that a display glass substrate toasts furnace chamber supplies cloth hot air structure is provided, can not only effective filtration toast hot-blastly, guarantees the furnace chamber cleanliness factor, and hot-blast supply is even moreover, avoids furnace chamber temperature difference.

In order to solve the technical problem, the utility model discloses a display glass substrate baking oven chamber supplies cloth hot air structure, including the furnace body, install the glass card frame in the baking oven chamber of furnace body, be provided with hot-blast chamber in the furnace chamber of furnace body, install heater and air-blower in this hot-blast chamber, set gradually filter and air distributor between hot-blast chamber and baking oven chamber, the air distributor includes a plurality of ventilation holes that can adjust the draught area; the air inlet pipe and the air outlet are also arranged on the furnace body, the air return channel and the air inlet pipe which are positioned in the furnace cavity of the furnace body are communicated with the hot air cavity, and the air return channel is communicated with the air outlet.

The utility model relates to a preferred embodiment, the cloth wind ware is including cloth aerofoil one and cloth aerofoil two of superpose each other, all is provided with the ventilation hole on cloth aerofoil one and cloth aerofoil two. The ventilation holes in the first air distribution plate and the second air distribution plate can be blocked in a staggered mode, and the first air distribution plate and the second air distribution plate are detachably connected and fixed through bolts.

The utility model discloses a still another preferred embodiment, the wind distributor includes the cloth wind base plate and sets up the ventilation hole on the cloth wind base plate, installs rotatable regulating plate in this ventilation hole.

The utility model discloses another preferred embodiment, the cloth wind ware includes the cloth wind base plate, is equipped with ventilation hole and regulation hyoplastron on the cloth wind base plate, and each ventilation hole corresponds an regulation hyoplastron.

The utility model discloses a preferred embodiment, the filter includes support and filter core, and this filter core is installed on the support, still installs the cloth wind ware on the support.

The utility model discloses a further embodiment, the return air passageway one end of furnace body stove intracavity is adjacent and accesss to hot-blast chamber with the air-supply line, and the other end and the air exit of return air passageway are linked together. The heater is an electric heater, and the filter element of the filter is a melt-blown filter element or a folding microporous filter element; the air blower is a centrifugal fan.

In the structure, because the filter and the air distributor are arranged between the hot air cavity and the baking cavity, the heated high-temperature hot air is filtered by the filter and then sent into the baking cavity, the effective filtration of the baking hot air is realized by the filter, the cleanliness of the baking hot air is ensured, the defect that the micro-dust particles adhere to the surface of the glass substrate is avoided, and the performance and the yield of the glass substrate are ensured. The air distributor enables clean hot air to be uniformly blown into the baking cavity, so that the uniformity of a baking temperature field in the baking cavity is ensured, the temperature difference formed between glass substrates on different layers is avoided, and the baking effect and the baking quality of the substrates are effectively improved. The ventilation hole on the air distributor base plate adopts the structure of adjustable ventilation area, not only can carry out the adjustment of hot-blast amount of wind and wind speed according to the base plate toasts the technological requirement, can be even moreover and stabilized toasting the temperature in the chamber of toasting, and the temperature fluctuation in the chamber of steadily toasting is avoided the harmful effects of temperature fluctuation to glass substrate formation.

Drawings

The structure of the oven cavity for supplying hot air for the display glass substrate according to the present invention will be further described with reference to the accompanying drawings and the following embodiments.

Fig. 1 is a schematic three-dimensional structure diagram of a structure for supplying hot air to a cloth in a baking oven chamber of a glass substrate for a display according to an embodiment of the present invention;

FIG. 2 is a schematic view of the air intake and exhaust circulation path of the embodiment shown in FIG. 1;

FIG. 3 is a schematic perspective view of the filter and air distributor of the embodiment of FIG. 1;

FIG. 4 is a schematic perspective view of an embodiment of the air distributor of FIG. 3;

FIG. 5 is a front view of the first air distribution plate of FIG. 4;

FIG. 6 is a front view of the second air distribution plate of FIG. 4;

FIG. 7 is a schematic perspective view of another embodiment of the air distributor of FIG. 3;

fig. 8 is a schematic perspective view of another embodiment of the air distributor in fig. 3.

In the figure, 1-furnace body; 2-furnace door; 3-air outlet; 4, clamping a glass frame; 5-return air channel, 6-air distributor, 7-filter, 8-heater, 9-air inlet pipe, 10-blower, 11-hot air cavity, 12-baking cavity, 13-bracket, 14-first air distribution plate, 15-second air distribution plate, 16-vent hole, 17-adjusting plate, 18-adjusting tongue plate.

Detailed Description

As shown in fig. 1 and fig. 2, the display glass substrate baking oven cavity is provided with a hot air distribution structure, the oven body 1 is in a cubic cabinet type structure, a side surface of the oven body 1 is provided with an oven door 2, a glass clamping frame 4, a blower 10 and a heater 8 are further arranged in the oven cavity of the oven body 1, and an air distributor 6 and a filter 7 are further arranged in the oven cavity of the oven body 1. The right side of the furnace body 1 is provided with a mounting hole seat for the blower 10 and the heater 8, so that the fan part of the blower 10 is positioned in the furnace cavity, the motor of the blower is positioned outside the side surface of the furnace body, the heating head of the heater 8 is positioned in the furnace cavity, and the heater connecting seat is positioned on the side wall of the furnace body. The heater 8 is an electric heater, and the blower 10 is a centrifugal fan.

The glass clamping frame 4 in the furnace chamber can lay a plurality of layers of glass substrates for baking at intervals in the height direction. An air inlet pipe 9 is communicated with the furnace chamber of the furnace body 1, and in order to ensure the uniformity of inlet air, a plurality of air inlets leading to the furnace chamber are connected in parallel on the air inlet pipe 9; an air outlet 3 is also arranged on the furnace chamber of the furnace body 1.

The furnace chamber of the furnace body 1 is divided into a hot air chamber 11, a baking chamber 12 and an air return channel 5. A heater 8 and a blower 10 are arranged in a hot air chamber 11, and a plurality of heaters and blowers are arranged in parallel in the height direction of the hot air chamber 11 in order to ensure the uniformity of heating and blowing. The glass clamping frame 4 is positioned in the baking cavity 12, and a filter 7 and an air distributor 6 are arranged between the hot air cavity 11 and the baking cavity 12; the hot air heated to the standard baking temperature in the hot air cavity 11 is blown by the blower 10 in sequence through the filter 7 and the air distributor 6 to enter the hot air cavity 11, the glass substrates on the glass clamping frame 4 in the baking cavity 12 are baked, one part of the baked hot air is collected and discharged through the air outlet 3, and the other part of the baked hot air is in parallel flow with the preheated fresh air of the air inlet pipe 9 through the air return channel 5 and is heated again in the hot air cavity 11. The ventilation frequency in the furnace chamber of the furnace body 1 can be controlled by effectively controlling the blast volume of the blast blower 10 and the exhaust flow velocity and flow of the exhaust port, thereby ensuring the cleanliness of the baking hot air and controlling the temperature fluctuation of the hot air so as to achieve the best substrate baking effect and the quality performance of the baked glass substrate.

As shown in fig. 3, the air distributor 6 and the filter 7 are both fixedly mounted on the bracket 13, and the filter 7 is composed of a plurality of filter elements arranged in parallel, wherein the filter elements are melt-blown filter elements or folding microporous filter elements.

As shown in fig. 4, 5 and 6, the air distributor 6 includes a first air distribution plate 14 and a second air distribution plate 15 that are stacked on each other, the first air distribution plate 14 and the second air distribution plate 15 are provided with vent holes 16 that have the same size and shape and are corresponding to each other, the first air distribution plate 14 and the second air distribution plate 15 are connected to each other through bolts, one of the first air distribution plate 14 and the second air distribution plate 15 is provided with a bolt elongated slot, the other one is provided with a threaded hole, the ventilation amount of the vent holes 16 can be adjusted by adjusting the relative position of the first air distribution plate 14 and the second air distribution plate 15, and the structure that the vent holes 16 are uniformly distributed on the plate surface can guide hot air to uniformly enter the baking cavity.

As shown in fig. 7, in another embodiment of the air distributor 6, a plurality of vent holes 16 are formed in the plate surface of the air distributor 6, an adjusting plate 17 is swingably supported in each vent hole 16 through a support shaft, and the ventilation amount of the vent holes 16 can be changed by rotating the angle of the adjusting plate 17. In another embodiment of the air distributor 6, as shown in fig. 8, a plurality of vent holes 16 are also formed on the plate surface of the air distributor 6, an adjusting tongue plate 18 is connected to the upper hole edge of the vent hole 16, and the ventilation amount of the vent hole 16 can be changed by changing the tilting angle of the adjusting tongue plate 18.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in other embodiments, or equivalents and modifications of some of the features of the embodiments and equivalents, without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a display glass substrate toasts furnace chamber and supplies hot-blast structure of cloth, includes furnace body (1) install glass card frame (4), its characterized in that in toasting chamber (12) of furnace body (1): a hot air cavity (11) is arranged in a furnace cavity of the furnace body (1), a heater (8) and an air blower (10) are arranged in the hot air cavity (11), a filter (7) and an air distributor (6) are sequentially arranged between the hot air cavity (11) and the baking cavity (12), and the air distributor (6) comprises a plurality of ventilation holes (16) with adjustable ventilation areas; still be equipped with air-supply line (9) and air exit (3) on furnace body (1), return air passageway (5) and air-supply line (9) that are located furnace body (1) furnace chamber communicate with hot-blast chamber (11), return air passageway (5) intercommunication has air exit (3).

2. The display glass substrate oven cavity hot air supply structure of claim 1, wherein: the air distributor (6) comprises a first air distribution plate (14) and a second air distribution plate (15) which are mutually overlapped, and the first air distribution plate (14) and the second air distribution plate (15) are both provided with vent holes (16).

3. The display glass substrate oven cavity hot air supply structure of claim 2, wherein: the ventilation holes (16) in the first air distribution plate (14) and the second air distribution plate (15) can be shielded in a staggered mode, and the first air distribution plate (14) and the second air distribution plate (15) are detachably connected and fixed through bolts.

4. The display glass substrate oven cavity hot air supply structure of claim 1, wherein: the air distributor (6) comprises an air distribution base plate and a ventilation hole (16) arranged on the air distribution base plate, and a rotatable adjusting plate (17) is arranged in the ventilation hole (16).

5. The display glass substrate bake oven chamber of claim 1, wherein said hot air supply structure is characterized in that: the air distributor (6) comprises an air distribution base plate, wherein the air distribution base plate is provided with air vents (16) and adjusting tongue plates (18), and each air vent (16) corresponds to one adjusting tongue plate (18).

6. The display glass substrate oven cavity hot air supply structure of claim 1, wherein: the filter (7) comprises a support (13) and a filter element, the filter element is arranged on the support (13), and the support (13) is also provided with an air distributor (6).

7. The display glass substrate oven cavity hot air supply structure of any one of claims 1-6, wherein: one end of a return air channel (5) in the furnace cavity of the furnace body (1) is communicated with the hot air cavity (11), and the other end of the return air channel (5) is communicated with the air outlet (3).

8. The display glass substrate oven cavity hot air supply structure of claim 7, wherein: the heater (8) is an electric heater, and the filter element of the filter (7) is a melt-blown filter element or a folding microporous filter element; the blower (10) is a centrifugal fan.