Rapid curing auxiliary device for OCA (Optical Clear Adhesive)

Abstract

The utility model relates to the technical field of OCA optical cement production, in particular to an OCA optical cement rapid curing auxiliary device which comprises a heating mechanism, a sliding rail is arranged on the heating mechanism, the heating mechanism comprises a driving mechanism arranged on the sliding rail, and a gas transmission box is arranged below the driving mechanism. The driving mechanism moves along the sliding rail, the air conveying box is accurately positioned to the optical cement curing position, an external air heater feeds hot air into the air conveying box through the air conveying pipe, the in-box diffusion barrel evenly diffuses the hot air input in a centralized mode, it is guaranteed that the OCA optical cement is evenly heated in a large area, the curing speed is increased, and the requirement for efficient curing of large-scale production is met; the hot air discharged by the air conveying box enters from the first inlet of the backflow box, and the micro fan on the mounting plate in the backflow box guides and accelerates the hot air again, so that the hot air is discharged from the outlet and is used for heating the OCA optical cement again, and the working time of the hot air blower and the energy consumption are greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to OCA optical adhesive production technical field, concretely is a kind of OCA optical adhesive quick curing auxiliary device. BACKGROUND

[0002] In electronic display industry, OCA optical adhesive is the key bonding material of screen manufacturing, is used to adhere the optical assembly of intelligent mobile phone, tablet computer, liquid crystal display, vehicle-mounted display screen and other equipment, such as screen panel and touch layer, polaroid and glass substrate, and its curing effect is related to product optical performance, display quality and service life.

[0003] Traditional OCA optical adhesive heating curing has two big problems, one is that heating uniformity is poor, it is difficult to make hot air uniformly distributed on large-area OCA optical adhesive, local overheating or heating deficiency is easy to appear, taking mobile phone screen adhesion as an example, uneven optical adhesive curing will make screen display color and brightness abnormal, touch sensitivity is affected, product quality and user experience are reduced, and in large display screen production, due to large screen size, uniform heating is more difficult, two is that energy is wasted seriously, in traditional process, heat is discharged to the environment after being used once, hot air blower needs to run continuously under high load, which increases enterprise electricity cost and causes heat pollution, in the current situation of energy shortage and strict environmental protection requirements, the sustainable development of enterprise is restricted, therefore, we propose a kind of OCA optical adhesive quick curing auxiliary device. UTILITY MODEL CONTENT

[0004] One of the technical problems to be solved in the present application is that the heating uniformity is poor in the traditional OCA optical adhesive heating curing process, it is difficult to make hot air uniformly distributed on large-area OCA optical adhesive, and local overheating or heating deficiency is easy to appear.

[0005] To solve the above technical problems, the present application provides an OCA optical adhesive quick curing auxiliary device, which comprises a heating mechanism, a sliding rail is arranged on the heating mechanism, the heating mechanism comprises a driving mechanism arranged on the sliding rail, a gas conveying box is arranged below the driving mechanism, a gas conveying pipe is arranged on the gas conveying box, and the gas conveying pipe penetrates through the driving mechanism and is connected with an external hot air blower, a diffusion cylinder is arranged in the gas conveying box, guide parts are symmetrically arranged in the gas conveying box, a gas conveying port is formed in the bottom of the gas conveying box, and reflux boxes are arranged on both sides of the gas conveying box.

[0006] The reflux box is used for recycling hot air discharged from the inside.

[0007] In some embodiments, a first inlet is formed in one side of the reflux box, an outlet is formed in the other side of the reflux box, a mounting plate is arranged in the reflux box, and a plurality of micro fans are arranged on the mounting plate.

[0008] In some embodiments, the reflow box is arranged in a C-shaped configuration.

[0009] In some embodiments, a second inlet is formed on the reflow box, a movable frame is slidably mounted on the gas delivery pipe, an electric push rod is arranged on the gas delivery pipe, and the output end of the electric push rod is connected with the movable frame, contact plates are arranged on both sides of the movable frame and slidably connected in the second inlet, a fixed sealing plate is arranged in the reflow box and corresponds to the contact plates, and a movable sealing plate is arranged on the contact plate and slidably mounted on the reflow box.

[0010] In some embodiments, heating assemblies are symmetrically arranged in the reflow box, and electric furnace wires are uniformly arranged between the heating assemblies in the same reflow box.

[0011] In some embodiments, first baffles are arranged on both sides of the gas delivery box, and second baffles are arranged on both sides of the first inlet.

[0012] In some embodiments, a third baffle is arranged on the outlet, and one side of the third baffle is arranged in a slope configuration.

[0013] The utility model at least has the following beneficial effects:

[0014] The driving mechanism moves along the slide rail, accurately positions the gas delivery box to the optical glue curing position, the external air heater sends hot air into the gas delivery box through the gas delivery pipe, the diffusion cylinder in the box uniformly diffuses the concentrated input hot air, ensures that the OCA optical glue is uniformly heated in a large area, speeds up the curing speed, meets the demand of large-scale production for efficient curing, the hot air discharged from the gas delivery box enters the first inlet of the reflow box, the micro fan on the mounting plate in the reflow box reorients and accelerates the hot air, so that the hot air is discharged from the outlet, is used for heating the OCA optical glue again, greatly reduces the working time and energy consumption of the air heater, saves operation funds for enterprises, improves economic benefits, and changes the situation of a large amount of heat waste in traditional heating and curing. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a first view angle structure schematic view of the heating mechanism of the utility model;

[0017] Figure 3 It is a second view angle structure schematic view of the heating mechanism of the utility model;

[0018] Figure 4 It is an internal structure schematic view of the gas delivery box and the reflow box of the utility model;

[0019] Figure 5 It is Figure 4Enlarged view at A.

[0020] Figure: 1, slide rail; 2, heating mechanism; 3, gas conveying pipe; 4, driving mechanism; 5, gas conveying box; 6, gas conveying port; 7, return box; 8, first inlet; 9, outlet; 10, electric push rod; 11, movable frame; 12, diffusion cylinder; 13, guide part; 14, first baffle; 15, second baffle; 16, heating assembly; 17, electric furnace wire; 18, third baffle; 19, mounting plate; 20, micro fan; 21, fixed sealing plate; 22, second inlet; 23, contact plate; 24, movable sealing plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Embodiment 1

[0023] Please refer to Figures 1-5 The present application provides a technical solution:

[0024] An OCA optical glue rapid curing auxiliary device, comprising a heating mechanism 2, the heating mechanism 2 is provided with a slide rail 1, the heating mechanism 2 comprises a driving mechanism 4 arranged on the slide rail 1, the driving mechanism 4 is provided with a gas conveying box 5 below, the gas conveying box 5 is provided with a gas conveying pipe 3, and the gas conveying pipe 3 penetrates through the driving mechanism 4 and is connected with an external hot air machine, the gas conveying box 5 is provided with a diffusion cylinder 12, the gas conveying box 5 is provided with a guide part 13 symmetrically, the gas conveying box 5 is provided with a gas conveying port 6 at the bottom, the gas conveying box 5 is provided with a return box 7 on both sides, the return box 7 is used for recycling hot air discharged from the gas conveying box 5, the return box 7 is provided with a first inlet 8 on one side, the return box 7 is provided with an outlet 9 on the other side, the return box 7 is provided with a mounting plate 19, the mounting plate 19 is provided with a plurality of micro fans 20, and the return box 7 is provided with a C-shaped structure.

[0025] In use, the device significantly improves the curing efficiency of OCA optical glue through ingenious design, the driving mechanism 4 moves flexibly on the slide rail 1, can accurately position the gas conveying box 5 to the position where the optical glue needs to be cured, the external hot air blower delivers hot air into the gas conveying box 5 through the gas conveying pipe 3, and the diffusion cylinder 12 in the gas conveying box 5 plays a key role, which can uniformly diffuse the concentrated input hot air, avoiding local overheating or uneven heating, for example, in the production of mobile phone screens, OCA optical glue is used to adhere the screen and the touch layer, if the heating is uneven, the optical glue will be inconsistent, which will affect the display effect and touch sensitivity of the screen, and the device can ensure that the optical glue is uniformly heated on a large area, accelerate the curing speed, greatly improve the production efficiency, and meet the demand for efficient curing in large-scale production.

[0026] The design of the reflux box 7 realizes efficient energy utilization, effectively reduces the production cost, the hot air discharged from the gas conveying box 5 enters the reflux box 7 through the first inlet 8 on one side of the reflux box 7, and the plurality of micro fans 20 on the mounting plate 19 in the reflux box 7 can guide and accelerate the refluxing hot air, so that the hot air is discharged from the discharge port 9 and participates in the heating process of the OCA optical glue again, in the traditional heating and curing process, a large amount of heat is directly discharged to the environment, causing great waste of energy, and the device recycles the hot air, greatly reduces the working time of the hot air blower and energy consumption, saves a lot of operating funds for enterprises, and improves the economic benefits of enterprises.

[0027] Embodiment 2

[0028] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0029] The second inlet 22 is arranged on the reflux box 7, the movable frame 11 is slidably arranged on the gas conveying pipe 3, the electric push rod 10 is arranged on the gas conveying pipe 3, the output end of the electric push rod 10 is connected with the movable frame 11, the contact plates 23 are arranged on the two sides of the movable frame 11, the contact plates 23 are slidably connected in the second inlet 22, the fixed sealing plate 21 is arranged in the reflux box 7, the fixed sealing plate 21 corresponds to the contact plates 23, the movable sealing plate 24 is arranged on the contact plates 23, and the movable sealing plate 24 is slidably arranged on the reflux box 7.

[0030] Different from embodiment 1, if the heat dissipation is uneven or the heat dissipation speed is improper after the curing of the OCA optical glue, internal stress changes may be caused, which affects the optical performance and bonding strength of the OCA optical glue, and rapid heat dissipation after the curing of the OCA optical glue is the key to the next production link, the movable frame 11 is moved up and down by the electric push rod 10, which can quickly drive the contact plate 23 and the movable sealing plate 24 to move synchronously, and accurately switch the closed state of the second inlet 22 and the first inlet 8, when the first inlet 8 in the closed reflow box 7 is closed, the air flow is sucked in reversely from the discharge port 9 and discharged from the second inlet 22, a specific air flow circulation path can be formed, the surface of the OCA optical glue is uniformly cooled, when producing high-resolution OLED display screens, the optical uniformity of the OCA optical glue is extremely high, and small stress differences may cause color deviation or display defects of the screen, and the device can effectively avoid product quality defects caused by heat dissipation problems by accurately controlling the heat dissipation air flow.

[0031] Embodiment 3

[0032] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0033] The heating assembly 16 is symmetrically arranged in the reflow box 7, and the heating assembly 16 in the same reflow box 7 is provided with uniformly distributed electric furnace filaments 17.

[0034] Different from embodiment 1, the heating assembly 16 and the uniformly distributed electric furnace filaments 17 arranged symmetrically in the reflow box 7 significantly improve the heating efficiency of the OCA optical glue, and the temperature is a key factor affecting the curing speed and quality during the curing process of the OCA optical glue, the electric furnace filaments 17 can quickly heat the air flow in the reflow box 7, when the contact plate 23 completely abuts against the fixed sealing plate 21, the air flow enters from the second inlet 22, is quickly heated by the electric furnace filaments 17, and is rapidly heated, for example, when producing liquid crystal display screens, the OCA optical glue needs to be quickly cured at a specific temperature to ensure good bonding effect, and the traditional heating mode may need a long time to heat the optical glue to the appropriate temperature, and the device can rapidly heat the air flow to the required range in a short time, greatly speeds up the curing process of the OCA optical glue, improves the production efficiency, and meets the demand of large-scale production for rapid curing.

[0035] When the electric push rod 10 pushes the movable frame 11 to move downward, the contact plate 23 is in full abutment with the fixed sealing plate 21, the second inlet 22 is opened, and the external cold air rapidly flows into the backflow box 7. When the cold air flows through the electric furnace wire 17, the cold air is rapidly and uniformly heated. The electric furnace wire 17 can rapidly raise the temperature of the air flow to the range suitable for OCA optical glue curing in a very short time due to the high heating performance. At the same time, the hot air blown by the gas conveying box 5 also acts synchronously. The combination of the two makes the surface of the optical glue rapidly heat up and accelerate the curing process, greatly improves the production efficiency, and meets the urgent needs of large-scale and high-efficiency production of enterprises.

[0036] Embodiment 4

[0037] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0038] The first baffle 14 is arranged on both sides of the gas conveying box 5, the second baffle 15 is arranged in the first inlet 8, and the third baffle 18 is arranged on the outlet 9.

[0039] Different from the embodiment 1, the first baffle 14 arranged on both sides of the gas conveying box 5, the second baffle 15 arranged in the first inlet 8 and the third baffle 18 arranged on the outlet 9 play a key role in improving the heating efficiency of the OCA optical glue. In the curing process of the OCA optical glue, the effective concentration and transmission of heat are very important. The first baffle 14 is closely arranged on both sides of the gas conveying box 5, effectively prevents the hot air in the gas conveying box 5 from escaping to the side, for example, when producing a large-size liquid crystal television screen, the OCA optical glue needs a large amount of concentrated hot air for curing. If there is no first baffle 14, part of the hot air will diffuse to the surrounding, resulting in uneven heating of the optical glue surface and prolonging the curing time. With the first baffle 14, the hot air can be more concentrated to blow to the optical glue, so that the temperature of the optical glue surface rapidly rises, the curing speed is accelerated, the production efficiency is greatly improved, and the demand for rapid curing in large-scale production is met.

[0040] In the traditional heating device, hot air is easy to escape in the device and the surrounding environment, causing a large amount of waste of energy. The second baffle 15 is arranged on both sides of the first inlet 8, effectively preventing the hot air discharged from the outlet 9 from leaking to the side of the first inlet 8 during the backflow process. The inclined surface structure of the third baffle 18 is designed ingeniously, which can guide the hot air to be discharged from the outlet 9 more smoothly, and reduce the backflow and escape of the hot air at the outlet 9.

[0041] It is to be noted that, in the present text, the terms such as first and second, and the like, are used merely to differentiate one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Also, the terms "comprising", "containing", or any other variant 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 can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0042] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the present application.

Claims

1. An auxiliary device for rapid curing of OCA optical adhesive, comprising a heating mechanism (2), wherein a slide rail (1) is provided on the heating mechanism (2), characterized in that: The heating mechanism (2) includes a drive mechanism (4) mounted on a slide rail (1), a gas delivery box (5) is mounted below the drive mechanism (4), a gas delivery pipe (3) is mounted on the gas delivery box (5), and the gas delivery pipe (3) passes through the drive mechanism (4) and is connected to an external hot air blower. A diffuser cylinder (12) is mounted inside the gas delivery box (5), and guide parts (13) are symmetrically arranged inside the gas delivery box (5). A gas delivery port (6) is opened at the bottom of the gas delivery box (5), and return boxes (7) are mounted on both sides of the gas delivery box (5). The return box (7) is used to reuse the hot air discharged from (5).

2. The OCA optical adhesive rapid curing auxiliary device according to claim 1, characterized in that: The return box (7) has a first inlet (8) on one side and an outlet (9) on the other side. The return box (7) has an installation plate (19) inside and several miniature fans (20) on the installation plate (19).

3. The OCA optical adhesive rapid curing auxiliary device according to claim 2, characterized in that: The reflux box (7) is configured in a C-shape.

4. The OCA optical adhesive rapid curing auxiliary device according to claim 2, characterized in that: The return box (7) is provided with a second inlet (22). A movable frame (11) is slidably installed on the gas supply pipe (3). An electric push rod (10) is provided on the gas supply pipe (3), and the output end of the electric push rod (10) is connected to the movable frame (11). A contact plate (23) is provided on both sides of the movable frame (11), and the contact plate (23) is slidably connected in the second inlet (22). A fixed sealing plate (21) is provided in the return box (7), and the fixed sealing plate (21) corresponds to the contact plate (23). A movable sealing plate (24) is provided on the contact plate (23), and the movable sealing plate (24) is slidably installed on the return box (7).

5. The OCA optical adhesive rapid curing auxiliary device according to claim 2, characterized in that: Heating components (16) are symmetrically arranged inside the reflux box (7), and heating wires (17) are evenly distributed between the heating components (16) in the same reflux box (7).

6. The OCA optical adhesive rapid curing auxiliary device according to claim 5, characterized in that: The gas delivery box (5) is provided with a first baffle (14) on both sides, and a second baffle (15) is provided on both sides inside the first inlet (8).

7. The OCA optical adhesive rapid curing auxiliary device according to claim 6, characterized in that: A third baffle (18) is provided on the outlet (9), and one side of the third baffle (18) is configured as an inclined surface.

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