CN213006125U - Oven of accurate accuse temperature of polyimide film solidification - Google Patents
Oven of accurate accuse temperature of polyimide film solidification Download PDFInfo
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- CN213006125U CN213006125U CN202021863216.8U CN202021863216U CN213006125U CN 213006125 U CN213006125 U CN 213006125U CN 202021863216 U CN202021863216 U CN 202021863216U CN 213006125 U CN213006125 U CN 213006125U
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Abstract
The utility model discloses an oven of accurate accuse temperature of polyimide film solidification, air supply mechanism are located the box, are equipped with the wind chamber in the air supply mechanism, wind chamber lateral wall is equipped with the main air intake and the export that induced drafts, just wind chamber bottom is equipped with the entry that induced drafts and the mouth of blowing, wind intracavity portion is equipped with the passageway that induced drafts and the passageway of blowing, the passageway both ends of blowing respectively with the main air intake with the mouth intercommunication of blowing, the passageway both ends of induced drafting respectively with the entry that induced drafts with the export intercommunication that induced drafts. Through the oven of the accurate accuse temperature of polyimide film solidification of above-mentioned optimal design, structural design is reasonable, directly continuously bloies and induced drafts the film surface through air supply mechanism in the box, can directly carry out accurate accuse temperature to the film surface fast to take away the solvent of polyimide heating evaporation fast through induced drafting, reduce and go up and down temperature energy consumption loss, improve film drying efficiency.
Description
Technical Field
The utility model relates to a flexible display technology field especially relates to an oven of accurate accuse temperature of polyimide film solidification.
Background
The flexible AMOLED display technology is rapidly developed, so that the flexible display screen becomes the most black technology in the consumer electronics industry. The display screen is flexible AMOLED for consumer electronics products such as global high-end mobile phones and watches. The core of the flexible AMOLED is the use of a polymer plastic substrate, and the plastic substrate needs to have the characteristics of high temperature resistance, corrosion resistance, stable size, high mechanical strength, easy coating and the like.
At present, only polyimide materials can meet the requirements, and the basic processing technology is to coat polyimide slurry on optical glass, and then cure the polyimide slurry into a film through nitrogen protection to manufacture the flexible optical electronic backboard. When the polyimide film is manufactured, a high-temperature curing film-forming step plays an important role in the film forming quality. In order to ensure the curing temperature of the polyimide film is uniform, the temperature of the surface of the film is generally controlled in an oven to ensure that the film is uniformly heated. However, the solvent is evaporated during the heating process of the film, so that the temperature of the surface of the film cannot be accurately adjusted directly by the ambient temperature in the oven, the temperature change speed is slow, the energy consumption for temperature increase and decrease is lost, and the production efficiency and yield of the finished film are low.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem who exists among the background art, the utility model provides an oven of accurate accuse temperature of polyimide film solidification.
The utility model provides an oven of accurate accuse temperature of polyimide film solidification, include: the box body and the air supply mechanism;
the air supply mechanism is located in the box, an air cavity is arranged in the air supply mechanism, a main air inlet and an air suction outlet are formed in the side wall of the air cavity, an air suction inlet and an air blowing port are formed in the bottom of the air cavity, an air suction channel and an air blowing channel are arranged in the air cavity, the two ends of the air blowing channel are communicated with the main air inlet and the air blowing port respectively, and the two ends of the air suction channel are communicated with the air suction inlet and the air suction outlet respectively.
Preferably, a heat insulation structure is arranged between the air suction channel and the air blowing channel.
Preferably, a heat insulation cavity is arranged in the heat insulation structure, and an air inlet communicated with the main air inlet is formed in the heat insulation cavity.
Preferably, an air outlet is formed in the bottom of the heat insulation cavity and communicated with the air suction inlet.
Preferably, an air deflector is arranged in the air suction channel, one end of the air deflector is located on one side, away from the main air inlet, of the air outlet, and the other end of the air deflector extends towards the direction away from the air suction inlet.
Preferably, the air suction channel is provided with an air suction section near one end of the air suction inlet, the inner diameter of the air suction section is gradually increased from top to bottom, the air blowing channel is provided with an air blowing section near one end of the air blowing port, and the inner diameter of the air blowing section is gradually decreased from top to bottom.
Preferably, a plurality of air suction cylinders are arranged in the air cavity, air suction inlets communicated with the air suction cylinders are formed in the side wall of the air cavity respectively, air suction channels are formed in each air suction cylinder, the air suction cylinders are arranged in an array, and air blowing channels are enclosed by the outer walls of the adjacent air suction cylinders.
Preferably, the air blowing device further comprises a heat insulation barrel, the heat insulation barrel is located between the adjacent air suction barrels, a heat insulation cavity is formed between the outer wall of the heat insulation barrel and the outer wall of the air suction barrel, and the air blowing channel is located in the heat insulation barrel.
Preferably, the plurality of air suction inlets are uniformly distributed at the bottom of the air supply mechanism, and the plurality of air blowing inlets are uniformly distributed at the bottom of the air supply mechanism.
Preferably, the temperature control device comprises an upper air supply mechanism and a lower air supply mechanism, and a temperature control space is formed between the upper air supply mechanism and the lower air supply mechanism.
The utility model discloses in, the oven of the accurate accuse temperature of polyimide film solidification that provides, air supply mechanism are located the box, are equipped with the wind chamber in the air supply mechanism, wind chamber lateral wall is equipped with the main air intake and the export that induced drafts, just wind chamber bottom is equipped with the entry that induced drafts and the mouth of blowing, wind intracavity portion is equipped with the passageway that induced drafts and the passageway of blowing, the passageway both ends of blowing respectively with the main air intake with the mouth intercommunication of blowing, the passageway both ends of induced drafting respectively with the entry that induced drafts with the export intercommunication that induced drafts. Through the oven of the accurate accuse temperature of polyimide film solidification of above-mentioned optimal design, structural design is reasonable, directly continuously bloies and induced drafts the film surface through air supply mechanism in the box, can directly carry out accurate accuse temperature to the film surface fast to take away the solvent of polyimide heating evaporation fast through induced drafting, reduce and go up and down temperature energy consumption loss, improve film drying efficiency.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of an oven for curing a polyimide film with an accurate temperature control function according to the present invention.
Fig. 2 is the utility model provides a polyimide film solidifies local air current sketch map of air supply mechanism of oven of accurate accuse temperature.
Fig. 3 is a schematic diagram showing the distribution of the blowing port and the suction inlet of the oven for curing the polyimide film and accurately controlling the temperature.
Fig. 4 is the utility model provides an aspiration channel and the heat insulating section of thick bamboo complex local structural schematic diagram of the oven of accurate accuse temperature of polyimide film solidification.
Fig. 5 is a schematic structural diagram of another embodiment of the oven for curing a polyimide film with an accurate temperature control.
Detailed Description
As shown in fig. 1 to 5, fig. 1 is the utility model provides a structural schematic diagram of the oven of the accurate accuse temperature of polyimide film solidification, fig. 2 is the utility model provides an air supply mechanism local air current schematic diagram of oven of the accurate accuse temperature of polyimide film solidification, fig. 3 is the utility model provides a blowing mouth and the inlet distribution sketch that induced drafts of oven of the accurate accuse temperature of polyimide film solidification, fig. 4 is the utility model provides an aspiration channel and the partial structural schematic diagram of a heat insulating section of thick bamboo complex of oven of the accurate accuse temperature of polyimide film solidification, fig. 5 is the utility model provides a structural schematic diagram of another embodiment of oven of the accurate accuse temperature of polyimide film solidification.
Referring to fig. 1, the utility model provides an oven of accurate accuse temperature of polyimide film solidification, include: the box body 1 and the air supply mechanism 2;
In the concrete working process of the oven of the accurate accuse temperature of polyimide film solidification of this embodiment, the film level sets up in air supply mechanism below, outside air-blast mechanism sends into accuse temperature gas through main air intake to the wind cavity, accuse temperature gas is through the passageway of blowing to the surperficial air blast of film, guarantee the accurate accuse temperature on film surface, the film is heated and is produced the evaporation solvent, accuse temperature gas carries the evaporation solvent and gets into the passageway of induced drafting through the entry of induced drafting, finally follow the export of induced drafting and discharge, guarantee that accuse temperature gas directly reachs the film surface, reduce the heat loss.
In this embodiment, the oven of accurate accuse temperature of polyimide film solidification that provides, air supply mechanism are located the box, are equipped with the wind chamber in the air supply mechanism, wind chamber lateral wall is equipped with main air intake and the export of induced drafting, just wind chamber bottom is equipped with induced draft entry and the mouth of blowing, wind intracavity portion is equipped with induced draft passageway and the passageway of blowing, the passageway both ends of blowing respectively with main air intake with the mouth intercommunication of blowing, the passageway both ends of induced drafting respectively with induced draft entry with the export intercommunication of induced drafting. Through the oven of the accurate accuse temperature of polyimide film solidification of above-mentioned optimal design, structural design is reasonable, directly continuously bloies and induced drafts the film surface through air supply mechanism in the box, can directly carry out accurate accuse temperature to the film surface fast to take away the solvent of polyimide heating evaporation fast through induced drafting, reduce and go up and down temperature energy consumption loss, improve film drying efficiency.
According to the process requirements of the polyimide film, the temperature needs to be raised and then lowered in the curing process, and in the process, temperature control gas needs to be changed. Therefore, when the temperature control temperature needs to be increased or decreased, the temperature of the entering temperature control gas changes, so that the temperature difference between the air suction channel and the air blowing channel is larger, the temperature control gas exchanges heat with the gas in the air suction channel in the air blowing channel, the temperature changes when the temperature control gas reaches the surface of the thin film, and the temperature control effect after temperature change is influenced. Therefore, in the specific embodiment, a heat insulation structure is arranged between the air suction channel 3 and the air blowing channel 4, and the heat loss between the air blowing channel and the air suction channel is reduced.
Referring to fig. 2, in a further embodiment of the heat insulation structure, a heat insulation cavity 5 is provided in the heat insulation structure, and an air inlet 52 communicated with the main air inlet 41 is provided on the heat insulation cavity 5; when the air enters the air cavity through the main air inlet, one part of the air enters the air blowing channel as temperature-controlled air to directly reach the surface of the film, and the other part of the air enters the heat insulation cavity as heat insulation medium, so that the heat loss caused by the direct heat exchange between the temperature-controlled air and the air in the air suction channel is avoided. For example, when the surface temperature of the film needs to be raised, the temperature-raised temperature-control gas is sent through the main air inlet, and a part of the temperature-control gas with higher temperature enters the heat insulation cavity, so that the temperature-control gas with higher temperature is prevented from contacting with the backflow gas in the air suction channel and being cooled before reaching the surface of the film.
Furthermore, an air outlet 51 is arranged at the bottom of the heat insulation cavity 5, and the air outlet 51 is communicated with the air suction inlet 32; the air entering the heat insulation cavity enters the air suction channel from the air outlet to be discharged, so that the temperature of the heat insulation cavity is adjusted at any time according to the requirement of temperature change of the temperature control air, and the heat insulation effect is improved.
In a specific design mode of air exhaust of the heat insulation cavity, an air deflector 6 is arranged in the air suction channel 3, one end of the air deflector 6 is positioned at one side of the air outlet 51 far away from the main air inlet 41, and the other end of the air deflector extends towards the direction far away from the air suction inlet 32; after the gas gets into the passageway that induced drafts through thermal-insulated chamber air outlet, flow back together with the gas that induced drafts under the guide effect of deflector, on the one hand, avoid the thermal-insulated gas after the heat exchange to reach the film surface, influence the temperature on film surface, on the other hand, thermal-insulated gas's flow direction is unanimous with the interior gas flow direction of the passageway that induced drafts, the gas reflux that induced drafts further with higher speed, on the other hand again, direct and the interior gas mixture of the passageway that induced drafts during thermal-insulated gas reflux, reduce induced.
According to the preparation process of the film, when the temperature of the film needs to be changed, the temperature-controlled gas after temperature change enters the air supply mechanism, most of the temperature-controlled gas after temperature change directly reaches the surface of the film through the air supply channel, the temperature of the film is controlled, a small part of the film enters the heat insulation cavity to insulate the air suction backflow gas before changing the temperature, the temperature is prevented from being influenced by the heat exchange between the temperature-controlled gas after changing the temperature and the air suction backflow gas before changing the temperature before reaching the surface of the film, and the heat-insulated gas after changing the temperature enters the air suction channel from the heat insulation cavity at the air outlet, then reflows together with the temperature-changing front temperature-controlling gas reflowing from the surface of the film under the wind guiding action of the wind deflector, pushes the temperature-changing front temperature-controlling gas to reflow in an accelerating way, and the heat exchange is carried out fully with the backflow gas, so that the temperature difference between the backflow gas and the blown gas after temperature change is further reduced, and the influence of the backflow gas on the temperature change of the thin film is reduced to the maximum extent.
In other specific embodiments, the end of the air suction channel 3 close to the air suction inlet 32 is provided with an air suction section, the inner diameter of the air suction section is gradually increased from top to bottom, the end of the air blowing channel 4 close to the air blowing opening 42 is provided with an air blowing section, and the inner diameter of the air blowing section is gradually decreased from top to bottom; blowing and air suction are performed to form circulation, so that gas evaporated from the polyimide is sucked away to the maximum extent, and the uniform temperature control of the surface of the film is further ensured.
Referring to fig. 4, in the actual design mode of the air suction channel and the air blowing channel, a plurality of air suction pipes 8 are arranged in the air cavity, an air suction inlet 32 communicated with each air suction pipe 8 is formed in the side wall of the air cavity, an air suction channel 3 is arranged in each air suction pipe 8, the plurality of air suction pipes 8 are arranged in an array, and the air blowing channel 4 is enclosed by the outer walls of the adjacent air suction pipes 8; through the arrangement of the air suction barrel, an air suction channel and an air blowing channel are conveniently formed in the air cavity.
In a specific design mode of the heat insulation cavity, the present embodiment further includes a heat insulation cylinder 7, the heat insulation cylinder 7 is located between adjacent air suction cylinders 8, a heat insulation cavity 5 is formed between the outer wall of the heat insulation cylinder 7 and the outer wall of the air suction cylinder 8, and the blowing channel 4 is located in the heat insulation cylinder 7; through the design of the heat insulation cylinder, the formation of the heat insulation cavity is facilitated.
Referring to fig. 3, in order to ensure that the temperature control gas is uniformly distributed on the surface of the film without dead angles, the plurality of air suction inlets 32 are uniformly distributed at the bottom of the air supply mechanism 2, and the plurality of air blowing openings 42 are uniformly distributed at the bottom of the air supply mechanism 2.
In other embodiments, the plurality of suction inlets 32 and the plurality of blow outlets 42 are located on the same plane; further the surface of the packaging film is controlled in temperature uniformly.
Referring to fig. 5, in a specific design manner of the oven of this embodiment, an upper air supply mechanism 21 and a lower air supply mechanism 22 may be provided, a temperature control space is formed between the two mechanisms, and when the film is placed in the temperature control space on the body, accurate temperature control is performed on the two side surfaces of the film from top to bottom simultaneously.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (11)
1. An oven of accurate accuse temperature of polyimide film solidification which characterized in that includes: the box body (1) and the air supply mechanism (2);
air supply mechanism (2) are located box (1), are equipped with the wind chamber in air supply mechanism (2), wind chamber lateral wall is equipped with main air intake (41) and induced draft export (31), just wind chamber bottom is equipped with induced draft entry (32) and mouth (42) of blowing, wind intracavity portion is equipped with induced draft passageway (3) and passageway (4) of blowing, the passageway (4) both ends of blowing respectively with main air intake (41) with mouth (42) of blowing intercommunication, the passageway (3) both ends of induced draft respectively with induced draft entry (32) with export (31) of induced drafting communicate.
2. The oven for curing the polyimide film with the accurate temperature control according to claim 1, wherein a heat insulation structure is arranged between the air suction channel (3) and the air blowing channel (4).
3. The oven capable of accurately controlling the temperature of the cured polyimide film according to claim 2, wherein a heat insulation cavity (5) is arranged in the heat insulation structure, and an air inlet (52) communicated with the main air inlet (41) is arranged on the heat insulation cavity (5).
4. The oven for curing polyimide films with precise temperature control according to claim 3, wherein the bottom of the heat insulation cavity (5) is provided with an air outlet (51), and the air outlet (51) is communicated with the air suction inlet (32).
5. The oven for curing the polyimide film with the accurate temperature control according to claim 4, wherein an air deflector (6) is arranged in the air suction channel (3), one end of the air deflector (6) is located at one side of the air outlet (51) far away from the main air inlet (41), and the other end of the air deflector extends in a direction far away from the air suction inlet (32).
6. The oven for curing polyimide films with precise temperature control according to claim 1, wherein the end of the air suction channel (3) near the air suction inlet (32) is provided with an air suction section, the inner diameter of the air suction section is gradually increased from top to bottom, the end of the air blowing channel (4) near the air blowing opening (42) is provided with an air blowing section, and the inner diameter of the air blowing section is gradually decreased from top to bottom.
7. The oven capable of accurately controlling the temperature of the cured polyimide film according to claim 1 or 6, wherein a plurality of air suction cylinders (8) are arranged in the air cavity, the side wall of the air cavity is provided with air suction inlets (32) respectively communicated with each air suction cylinder (8), each air suction cylinder (8) is internally provided with an air suction channel (3), the air suction cylinders (8) are arranged in an array, and the air suction channels (4) are enclosed by the adjacent air suction cylinders (8).
8. The oven capable of accurately controlling the temperature of curing the polyimide film according to claim 7, further comprising a heat insulation cylinder (7), wherein the heat insulation cylinder (7) is located between adjacent air suction cylinders (8), a heat insulation cavity (5) is formed between the outer wall of the heat insulation cylinder (7) and the outer wall of the air suction cylinder (8), and the air blowing channel (4) is located in the heat insulation cylinder (7).
9. The oven for curing polyimide films with precise temperature control according to claim 7, wherein the plurality of air suction inlets (32) are uniformly distributed at the bottom of the air supply mechanism (2), and the plurality of air blowing ports (42) are uniformly distributed at the bottom of the air supply mechanism (2).
10. The oven for curing polyimide films with precise temperature control according to claim 9, wherein the plurality of suction inlets (32) and the plurality of blow outlets (42) are located on the same plane.
11. The oven for curing polyimide films with precise temperature control according to claim 1, which comprises an upper air supply mechanism (21) and a lower air supply mechanism (22) which form a temperature control space therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021863216.8U CN213006125U (en) | 2020-08-31 | 2020-08-31 | Oven of accurate accuse temperature of polyimide film solidification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021863216.8U CN213006125U (en) | 2020-08-31 | 2020-08-31 | Oven of accurate accuse temperature of polyimide film solidification |
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| Publication Number | Publication Date |
|---|---|
| CN213006125U true CN213006125U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021863216.8U Active CN213006125U (en) | 2020-08-31 | 2020-08-31 | Oven of accurate accuse temperature of polyimide film solidification |
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| CN (1) | CN213006125U (en) |
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- 2020-08-31 CN CN202021863216.8U patent/CN213006125U/en active Active
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