CN218167666U

CN218167666U - Ultraviolet curing jig and equipment for optical film

Info

Publication number: CN218167666U
Application number: CN202221117471.7U
Authority: CN
Inventors: 张永汉; 程军; 刘永春
Original assignee: Shaoxing Xuyuan New Material Technology Co ltd
Current assignee: Shaoxing Xuyuan New Material Technology Co ltd
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-12-30
Anticipated expiration: 2032-05-09

Abstract

The utility model provides an ultraviolet curing jig for an optical film, which comprises a sealing box, wherein the sealing box comprises a box body and a cover body, and a gas containing cavity is formed between the box body and the cover body; the cover body is provided with a transparent part, the box body is provided with an air inlet pipeline and an air outlet pipeline for discharging gas in the gas containing cavity, the air inlet pipeline is provided with a first valve for cutting off communication, the first valve is in an open state, specific gas is injected into the gas containing cavity, and in a closed state, the specific gas is retained in the gas containing cavity so that the optical film is cured by UV in specific gas atmosphere; and a second valve matched with the first valve switch is arranged on the air outlet pipeline. Still provide the ultraviolet curing equipment based on above-mentioned ultraviolet curing tool. Use the utility model discloses to filling the exhaust process in the seal box need not to go on always like prior art, can greatly reduced cost, improved production efficiency, can also guarantee to produce property ability stable, unanimous.

Description

Ultraviolet curing jig and equipment for optical film

Technical Field

The utility model relates to an blooming manufacture equipment field especially relates to an ultraviolet curing tool and equipment for blooming.

Background

The ultraviolet curing coating is mainly composed of oligomer, monomer, photoinitiator, auxiliary agent and additive, and the photoinitiator absorbs ultraviolet light to form free radicals in the curing process and forms curing crosslinking reaction with the oligomer and the monomer. In the production process of the optical film, the curing coating is coated outside an optical film substrate and then is sent to an ultraviolet curing link, but the photoinitiator not only absorbs ultraviolet light to form free radicals, but also the free radicals react with oxygen, so that the curing crosslinking reaction is influenced, the curing performance of the product is reduced, and the product quality is influenced. The prior art generally adopts a method of arranging a shield in the ultraviolet curing area, supplying a specific gas, such as nitrogen, from the upper part or two sides of the shield to purge the air in the curing area, so as to blow out oxygen in the curing area and reduce the oxygen concentration in the curing area. However, the cured optical film semi-finished product is placed on a conveyor belt to move, air is brought into a curing area in the moving process, although nitrogen is continuously introduced into the upper portion or the side portion of the shield, the nitrogen is blown out along the transverse direction of the advancing direction of the conveyor belt at the inlet of the conveyor belt to block the air from entering, the nitrogen must be continuously introduced to maintain low oxygen concentration in the curing area in the process, the cost is very high, and in addition, the time for reducing the oxygen to the low concentration is long, so that the production efficiency is low. In addition, the oxygen concentration in the process is in a dynamic change process, so that the produced product is easily inconsistent in performance.

In view of the above, there is a need to provide a new technical solution to overcome the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model provides an ultraviolet curing tool and equipment for blooming to solve among the prior art and carry out ultraviolet curing in blooming production process because difficult lower oxygen concentration scope of maintaining leads to manufacturing cost height, inefficiency and produce the difficult unanimous problem of property ability.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an ultraviolet curing jig for an optical film is movably arranged on a carrying platform of a UV curing device; the ultraviolet curing jig for the optical film comprises a sealing box, wherein the sealing box comprises a box body and a cover body, and a gas containing cavity for placing the optical film is formed between the box body and the cover body; wherein the lid has: a transparent part for passing ultraviolet light therethrough to UV-cure the optical film; wherein, the box has: the gas inlet pipeline is used for communicating a specific gas source and is provided with a first valve for cutting off the communication; and a gas outlet pipeline for discharging the gas in the gas containing cavity; the first valve is configured to be operably switched between an open state in which the specific gas is injected into the gas chamber to reduce the oxygen concentration in the gas chamber and a closed state in which the specific gas is retained in the gas chamber to allow the optical film to be UV cured in a specific gas atmosphere; and a second valve matched with the first valve switch is arranged on the air outlet pipeline.

The technical scheme can be further perfected as follows:

preferably, the box body is provided with an opening for placing the optical film into the gas containing cavity, and the cover body is sealed at the opening.

Preferably, the opening is formed on the upper surface of the box body, and the size of the opening is matched with that of the optical film, so that the optical film is conveniently placed into the gas containing cavity from top to bottom.

Preferably, the box body is formed with a step at the opening, and the cover body is provided with a fitting part for fitting the cover on the step to seal the opening.

Preferably, a sealing ring is arranged on the step, and the embedding part and the step are matched to press the sealing ring so as to seal the opening.

Preferably, the middle part of the cover body protrudes towards the gas containing cavity to form the embedding part, an outer ring surface of the embedding part is pressed against the step to form a first sealing surface, and a lower surface of the embedding part is pressed against the step to form a second sealing surface.

Preferably, the lid body is formed with a third sealing surface by pressing a portion of the outer ring of the fitting portion against the upper surface of the case body.

Preferably, the middle of the embedding part protrudes towards the gas cavity to form a boss, the side surface of the boss is pressed against the side wall of the gas cavity to form a fourth sealing surface, and the fourth sealing surface is vertically connected with the second sealing surface.

Preferably, a locking piece for locking the box body and the cover body is arranged between the box body and the cover body.

In order to achieve the above purpose, the utility model discloses following technical scheme has still been adopted: the utility model provides an ultraviolet curing equipment for blooming, includes UV curing device, be equipped with the microscope carrier on the UV curing device, still include according to any one of above-mentioned technical scheme ultraviolet curing tool for the blooming, ultraviolet curing tool for the blooming is put on the microscope carrier to carry out the UV solidification to the blooming of placing in the gas holds the intracavity.

Owing to adopted above technical scheme, the utility model discloses following beneficial effect has: the curing jig is specially arranged for the optical film, the optical film is placed into the sealed box, the first valve and the second valve are opened, the sealed box is filled with specific gas through the gas inlet pipeline, and meanwhile, oxygen in the sealed box is discharged through the gas outlet pipeline, so that the oxygen concentration in the sealed box can be gradually reduced; the first valve and the second valve are closed, so that specific gas can be reserved in the gas containing cavity, then the whole curing jig with the optical film is placed on a carrying platform of UV curing equipment for ultraviolet curing, and in the whole ultraviolet curing process, the optical film in the gas containing cavity is in the specific gas atmosphere, so that the quality of finished products is ensured. The air charging and discharging process does not need to be carried out all the time like the prior art, so that the cost can be greatly reduced; meanwhile, as the oxygen in the limited space in the gas cavity is only required to be subjected to the gas charging and discharging operation for reducing the concentration, the process is short in time, and the production efficiency is improved; in addition, the oxygen concentration value is kept unchanged in the process of ultraviolet light curing, so that the product performance can be ensured to be stable and consistent.

Drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.

Fig. 1 is a schematic structural view of an ultraviolet curing jig for an optical film according to an embodiment of the present invention;

FIG. 2 is an exploded view of the UV curing jig for optical films of FIG. 1;

FIG. 3 is a schematic view of the structure of the cover in the embodiment;

FIG. 4 is an enlarged schematic view of portion A of FIG. 2;

fig. 5 is a cross-sectional view of the ultraviolet curing jig for an optical film of fig. 1.

Reference numerals:

1. the sealing structure comprises a box body, a gas cavity, a gas inlet pipeline, a gas outlet pipeline, a step, a ring groove, a cover body, a handle, a fitting part, a boss, a first sealing surface, a second sealing surface, a boss, a fourth sealing surface, a third sealing surface and a sealing ring, wherein the box body comprises 100 parts of a gas cavity, 101 parts of a gas inlet pipeline, 102 parts of a gas outlet pipeline, 103 parts of a step, 103c parts of a ring groove, 2 parts of a cover body, 200 parts of a handle, 201 parts of a fitting part, 201a first sealing surface, 201b parts of a second sealing surface, 202 parts of a boss, 202a fourth sealing surface, 203 parts of a third sealing surface and 3 parts of a sealing ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item appearing in front of the word "comprising" or "comprises" includes the element or item listed after the word "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used only to indicate relative positional relationships that may change when the absolute position of an object being described changes, and are merely for convenience in describing the invention and to simplify the 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 invention.

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 in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

Example (b): the embodiment provides an ultraviolet curing jig for an optical film, which is used in cooperation with a UV curing device to perform ultraviolet curing on the optical film, as shown in fig. 1 and 2, the ultraviolet curing jig for the optical film comprises a sealing box, the sealing box comprises a box body 1 and a cover body 2, a gas containing cavity 100 for placing the optical film is formed between the box body 1 and the cover body 2, the box body 1 is provided with a gas inlet pipeline 101 for filling specific gas into the gas containing cavity and a gas outlet pipeline 102 for discharging the gas out of the gas containing cavity, the gas inlet pipeline 101 is used for filling the specific gas into the gas containing cavity, and the gas in the gas containing cavity is discharged through the gas outlet pipeline 102, so that the oxygen concentration in the gas containing cavity can be gradually reduced, and the oxygen concentration in the gas containing cavity is reduced to meet the ultraviolet curing state of the optical film. It should be noted that the cover in this embodiment is made of quartz glass, has good light transmittance to ultraviolet light, has good pressure resistance and high temperature resistance, and is suitable for ultraviolet light curing, and it is understood that the whole cover may be made of quartz glass, or a part of the cover may be made of quartz glass, as long as the cover has a transparent portion through which ultraviolet light can pass to UV-cure the optical film. In addition, other materials having good transmittance for ultraviolet light, such as acrylic plate or glass of a specific material, may be used to manufacture the cover. The optical film described in this embodiment refers to a type of optical medium material that transmits light beams through an interface, and includes a reflective film, a polarizing film, a filter, and the like, which are widely applied to the optical and optoelectronic technical fields, such as electronic screens, optical lenses, and the like.

The optical film curing device comprises an air inlet pipeline 101, an air outlet pipeline 102 and a gas containing cavity, wherein a first valve (not shown in the figure) is arranged at the air inlet pipeline 101, a second valve (not shown in the figure) is arranged at the air outlet pipeline 102, the air inlet pipeline is used for being communicated with a specific gas source, the first valve is opened, the specific gas source is used for filling specific gas into the gas containing cavity through the air inlet pipeline, meanwhile, the second valve is opened, the gas in the gas containing cavity can be driven to be discharged through the air outlet pipeline due to the sweeping of the specific gas, the oxygen concentration in the gas containing cavity can be reduced in the process, and therefore the specific gas is retained in the gas containing cavity 100 so that the optical film is cured by UV in a specific gas atmosphere. The curing jig provided by the embodiment is applied to the whole ultraviolet curing process without being carried out all the time like the prior art, so that the amount of specific gas and the service life of inflating equipment are reduced, and the cost can be greatly reduced; meanwhile, only the limited space of the gas cavity needs to be inflated and exhausted for reducing the oxygen concentration, so that the process is short in time, and particularly only 1 to 2 minutes are needed in the embodiment, and the production efficiency is greatly improved; in addition, because the oxygen concentration value in the gas cavity is kept unchanged in the process of ultraviolet light curing, the product performance can be well ensured to be stable and consistent, and the product performance problem in the prior art can not be caused. Specifically, in the present embodiment, the specific gas is nitrogen, and an inert gas such as argon or carbon dioxide gas may be used.

In addition, because this solidification tool can cooperate UV curing apparatus to use, carry out the above-mentioned process of inflating exhaust after putting into the gas chamber of this solidification tool with the blooming of treating the solidification, later with first valve, the second valve is closed, place whole the carrying platform of UV curing equipment with the solidification tool and carry out ultraviolet curing, in the in-process of carrying out the ultraviolet curing, can reuse the solidification tool that this embodiment provided and pack into next and treat the solidification blooming and fill exhaust process, like this last blooming accomplishes the ultraviolet curing after, just can be at once with next dress and treat the solidification tool of solidification blooming and place the carrying platform of UV curing apparatus on, can save time, promote production efficiency greatly.

The case 1 in this embodiment has an opening for placing the optical film into the gas chamber 102, and the lid 2 is used to seal the opening. In order to achieve good sealing performance, the case 1 in this embodiment has a step 103 formed at the opening, and the lid 2 is sealed and covered on the step, specifically, the lid 2 has a fitting portion 201 that fits and covers the step to seal the opening.

In order to facilitate the optical film to be placed in the gas cavity 102, the opening is formed on the upper surface of the box body 1, and the size of the opening is matched with that of the optical film, so that the optical film is placed into the gas cavity 102 from top to bottom. Correspondingly, the air inlet pipeline and the air outlet pipeline in the embodiment are arranged on the side face of the box body 1, so that air charging and discharging operations can be conveniently carried out, it can be understood that only one air inlet pipeline and one air outlet pipeline are arranged in the embodiment, the size of the seal box can be changed correspondingly according to the actual size of the optical film in other embodiments, and the number of the air inlet pipeline and the number of the air outlet pipelines are correspondingly increased. In addition, since the opening is formed on the upper surface of the box body 1, the cover body 2 is correspondingly arranged above the box body 1, and in order not to influence the ultraviolet curing process, a handle is arranged on the side surface of the cover body 2 in the embodiment, so that the opening and closing operation of the cover body is convenient.

Further, in order to enhance the sealing performance of the sealing box, a step 103 is formed at the opening of the box body 1 in the embodiment, and the cover body 2 is hermetically embedded on the step 103, so that the sealing performance is good, the cover body 2 is easy and convenient to take and place, and the optical film is convenient to place in the gas containing cavity 102. As shown in fig. 3, fig. 4 and fig. 5, in this embodiment, a plurality of sealing surfaces are formed between the lid and the box body to enhance the sealing performance, specifically, the middle portion of the lid protrudes toward the gas cavity to form the fitting portion 201, the outer ring surface of the fitting portion 201 abuts against the step 103 to form a first sealing surface 201a, and the lower surface of the fitting portion abuts against the step to form a second sealing surface 201b. Further, in the present embodiment, the lid body 2 is pressed against the upper surface of the case 1 at the outer periphery of the fitting portion 201 to form a third sealing surface 203. In addition, the middle of the fitting part 201 in this embodiment is also protruded toward the gas chamber to form a boss 202, and a fourth sealing surface 202a is formed by pressing the side surface of the boss 202 against the side wall of the gas chamber, and the fourth sealing surface 202a is vertically connected to the second sealing surface 201b. Through the sealing contact of the sealing surfaces, the cover body 2 and the box body 1 can be ensured to have good sealing performance, so that the gas in the gas containing cavity 102 can be ensured not to leak, the stability of the oxygen concentration in the gas containing cavity 102 in the ultraviolet curing process is ensured, and the consistency and the stability of the performance of products are ensured.

As shown in fig. 2 and 5, in the present embodiment, a sealing ring 3 is further provided between the cover body 2 and the step 103 to further enhance the sealing performance. In addition, in this embodiment, an annular groove 103c is further provided on the step 103, specifically, in this embodiment, the annular groove 103c is provided on the second sealing surface 103b, the sealing ring 3 is provided in the annular groove 103c, and the sealing ring 3 partially protrudes from the annular groove 103c, so that the sealing ring 3 is pressed when the lid body 2 is fitted to the step 103, which can make the lid body 2 and the case body 1 have better sealing performance.

In another embodiment, a locking member, such as a bolt or a latch, may be disposed between the box and the cover for locking the box and the cover, so that after the optical film to be cured is placed into the gas chamber, the cover and the box may be locked by the locking member, which keeps the two relatively stable and prevents the cover from leaking due to movement relative to the box.

In another embodiment, the cover may be pivotally connected to the case, so that the opening and closing operation of the cover is easier.

When the curing jig provided by the embodiment is used in cooperation with a UV curing device to form equipment with an ultraviolet curing function, in particular, when the curing jig is used, firstly, the cover body 2 is opened, an optical film is placed into the gas containing cavity 102, and then, the cover body 2 is embedded and covered on the step 103 to form sealing; then, a specific gas source such as a nitrogen pump is used for filling nitrogen into the gas cavity through the gas inlet pipeline, and simultaneously gas in the seal box is discharged through the gas outlet pipeline, so that the oxygen concentration in the seal box can be gradually reduced; after the oxygen concentration in the gas chamber is reduced to a proper concentration value (the set concentration can be controlled by determining the inflation and deflation time through experimental measurement and can also be controlled by measuring through installing a sensor for measuring the oxygen concentration), closing both the first valve and the second valve, and stopping inflation; and finally, integrally placing the curing jig provided with the optical film on a carrying platform of a UV curing device, and carrying out UV curing on the optical film through ultraviolet light.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An ultraviolet curing jig for an optical film is movably arranged on a carrying platform of a UV curing device; this ultraviolet curing tool for blooming includes seal box, its characterized in that:

the sealed box comprises a box body and a cover body, and a gas containing cavity for placing an optical film is formed between the box body and the cover body;

wherein the lid has:

a transparent part for passing ultraviolet light therethrough to UV-cure the optical film;

the box body is provided with:

the gas inlet pipeline is used for communicating a specific gas source and is provided with a first valve for cutting off the communication; and

the gas outlet pipeline is used for discharging the gas in the gas containing cavity;

the first valve is configured to be operably switched between an open state in which the specific gas is injected into the gas chamber to reduce the oxygen concentration in the gas chamber and a closed state in which the specific gas is retained in the gas chamber to allow the optical film to be UV cured in a specific gas atmosphere;

and a second valve matched with the first valve switch is arranged on the air outlet pipeline.

2. The UV-curable jig for optical films according to claim 1, wherein the case has an opening for placing the optical film into the gas chamber, and the lid seals the opening.

3. The UV-curing jig for optical films according to claim 2, wherein the opening is formed on the upper surface of the case, and the size of the opening is adapted to the size of the optical film, so that the optical film is placed into the gas cavity from top to bottom.

4. The UV-curing jig for optical films according to claim 2, wherein the case has a step formed at the opening, and the cover has an engaging portion for engaging with the step to seal the opening.

5. The UV curing jig for optical films as set forth in claim 4, wherein a sealing ring is disposed on the step, and the engaging portion is engaged with the step to press the sealing ring to seal the opening.

6. The UV-curable jig for optical films according to claim 4, wherein the middle portion of the cover body protrudes toward the gas cavity to form the fitting portion, an outer ring surface of the fitting portion abuts against the step to form a first sealing surface, and a lower surface of the fitting portion abuts against the step to form a second sealing surface.

7. The UV-curable jig for optical films according to claim 6, wherein a third sealing surface is formed on the cover by pressing a portion of the outer ring of the fitting portion against the upper surface of the case.

8. The jig for curing ultraviolet light for optical films according to claim 6 or 7, wherein a boss is formed by projecting the middle of the fitting portion toward the gas containing chamber, a side surface of the boss is pressed against a side wall of the gas containing chamber to form a fourth sealing surface, and the fourth sealing surface is vertically connected to the second sealing surface.

9. The UV-curing jig for optical films according to claim 1, wherein a locking member for locking the case and the cover is disposed between the case and the cover.

10. An ultraviolet curing device for an optical film, comprising a UV curing device, wherein a stage is arranged on the UV curing device, and the ultraviolet curing device for an optical film is characterized by further comprising the ultraviolet curing jig for an optical film according to any one of claims 1 to 9, wherein the ultraviolet curing jig for an optical film is placed on the stage so as to perform UV curing on the optical film placed in the gas containing cavity.