Heating mechanism for heating optical film

Abstract

The utility model relates to the technical field of lens film pasting equipment, and provides a heating mechanism for heating an optical film, the heating mechanism comprises an infrared radiation lamp, an upper die holder and a lower die holder, the infrared radiation lamp and the lower die holder are respectively arranged on two opposite sides of the upper die holder, the upper die holder is provided with a heating channel, and the heating channel is communicated with the infrared radiation lamp. A transparent blocking piece is arranged on the side, away from the lower die base, of the upper die base, the lower die base is used for containing an optical film, when the upper die base and the lower die base are closed, the optical film is fixed between the upper die base and the lower die base, the heating channel extends to the lower die base, and the optical film is fixed between the upper die base and the lower die base. The infrared radiation lamp irradiates the heating channel and the lower die through the transparent blocking piece. Therefore, the optical film can be heated uniformly, and the quality of finished products is ensured.

Description

Technical Field

[0001] The present application relates to the field of lens film application equipment, and in particular to a heating mechanism for heating optical films. Background Art

[0002] The surface of a curved lens requires an optical film. To ensure a good fit, without wrinkles or bubbles, the film is first heated. In some applications, this heating method involves contacting the film with a heating block embedded in a heat source, such as a heating rod, to generate heat, utilizing heat conduction.

[0003] However, during the contact heat conduction process of the heating block, there will be a large deviation in the temperature of the heating surface, and the optical film is easily heated unevenly, resulting in irregular deformation of the optical film when it is bonded to the lens, affecting the quality of the finished product.

[0004] The present application provides a heating mechanism for heating an optical film, which enables the optical film to be heated evenly and ensures the quality of the finished product. Utility Model Content

[0005] In order to ensure that the optical film is heated evenly and the quality of the finished product is guaranteed, the present application provides a heating mechanism for heating the optical film.

[0006] The present application provides a heating mechanism for heating an optical film, which adopts the following technical solution:

[0007] A heating mechanism for heating an optical film comprises an infrared radiation lamp, an upper mold base and a lower mold base, wherein the infrared radiation lamp and the lower mold base are respectively arranged on opposite sides of the upper mold base, the upper mold base is provided with a heating channel, a transparent baffle is provided on the side of the upper mold base facing away from the lower mold base, the lower mold base is used to place the optical film, when the upper mold base and the lower mold base are closed, the optical film is fixed between the upper mold base and the lower mold base, the heating channel extends to the lower mold base, and the infrared radiation lamp irradiates the heating channel and the lower mold through the transparent baffle.

[0008] By adopting the above technical solution, the optical film is placed on the lower mold base. When the upper mold base and the lower mold base are closed, the infrared radiation lamp irradiates and heats the heating channel and the lower mold, so that the energy of the light in the entire heating channel is the same, and the heat in the heating channel is the same, so that the optical film is heated evenly, so that the optical film is heated evenly, thereby ensuring the quality of the finished product.

[0009] Optionally, an auxiliary ring with elastic deformation capability is further included. A mounting groove is provided on one side of the upper mold base facing the lower mold base. The auxiliary ring is installed in the mounting groove, and the auxiliary ring partially extends out of the mounting groove.

[0010] By adopting the above technical solution, when the upper mold base and the lower mold base are closed, the auxiliary ring squeezes and fixes the optical film. Since the auxiliary ring has elastic deformation, it can protect the optical film when squeezing the optical film, and better avoid the wear of the optical film when the upper mold base and the lower mold base are closed; at the same time, due to the extrusion when the upper mold base and the lower mold base are closed, the auxiliary ring can be deformed, so that the upper mold base and the lower mold base are fitted together, without affecting the uniform heating in the heating channel.

[0011] Optionally, a mounting base is further included, and the infrared radiation lamp is mounted on the mounting base.

[0012] Optionally, a driving member is further included, which drives the infrared radiation lamp to move closer to or away from the upper mold base.

[0013] By adopting the above technical solution, the infrared radiation lamp can be fixed at a position close to or far away from the upper mold base according to actual needs.

[0014] Optionally, the upper mold base is provided with a first observation window, and the first observation window is installed with a first transparent observation piece.

[0015] By adopting the above technical solution, the situation inside the upper mold base can be observed through the transparent observation piece, and the situation of the optical film can also be observed.

[0016] Optionally, an infrared temperature sensor is further included. When the upper mold base and the lower mold base are in mold closing, the infrared temperature sensor is directed toward the lower mold base through the first observation window.

[0017] By adopting the above technical solution, the temperature of the optical film can be monitored in real time by the infrared temperature sensor. When the optical film reaches the set temperature, the infrared radiation lamp stops heating.

[0018] Optionally, a fixing base is further included, wherein the fixing base is installed on the upper mold base, and the infrared temperature sensor is installed on the fixing base.

[0019] Optionally, it further includes a first locking member and a second locking member, the fixing seat is provided with a mounting hole and an adjustment hole, the first locking member fixes the infrared temperature sensor through the mounting hole, and the second locking member fixes the infrared temperature sensor through the adjustment hole.

[0020] By adopting the above technical solution, when the first locking piece and the second locking piece are loosened, the infrared temperature sensor can rotate with the second locking piece along the direction of the adjustment hole with the first locking piece as the rotation center to change the orientation of the infrared temperature sensor. Therefore, the position of the infrared temperature sensor can be easily adjusted so that it can be more accurately directed towards the optical film.

[0021] Optionally, the lower mold base is provided with a second observation window, and the second observation window is installed with a second transparent observation piece.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The lower mold base is used to place the optical film. When the upper mold base and the lower mold base are closed, the optical film is fixed between the upper mold base and the lower mold base. The infrared radiation lamp irradiates and heats the heating channel and the lower mold, so that the light energy and heat in the entire heating channel are the same, and the optical film is heated evenly, so that the optical film is heated evenly, ensuring the quality of the finished product;

[0024] 2. When the upper and lower mold bases are closed, the auxiliary ring squeezes and fixes the optical film. Since the auxiliary ring has elastic deformation, it can protect the optical film when squeezing, and better minimize the wear of the optical film when the upper and lower mold bases are closed. At the same time, due to the squeezing when the upper and lower mold bases are closed, the auxiliary ring can be deformed, so that the upper and lower mold bases fit together, without affecting the uniform heating in the heating channel.

[0025] 3. The temperature of the optical film can be monitored in real time through the infrared temperature sensor. When the optical film reaches the set temperature, the infrared radiation lamp stops heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 1 is a schematic structural diagram of a heating mechanism for heating an optical film according to an embodiment of the present application;

[0027] Figure 2 This is a schematic structural diagram of the upper mold base and the lower mold base in the heating mechanism for heating an optical film according to an embodiment of the present application when the upper mold base and the lower mold base are in mold closing;

[0028] Figure 3 It is a structural schematic diagram of an auxiliary ring in a heating mechanism for heating an optical film according to an embodiment of the present application.

[0029] Figure numerals: 1. infrared radiation lamp; 2. upper mold base; 3. lower mold base; 4. heating channel; 5. mounting base; 6. driving part; 7. frame; 8. first observation window; 9. infrared temperature sensor; 10. fixing base; 11. mounting hole; 12. adjustment hole; 13. second observation window; 14. auxiliary ring; 15. mounting groove. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 Please provide further details on this application.

[0031] The embodiment of the present application discloses a heating mechanism for heating an optical film. Figure 1The heating mechanism for heating the optical film includes an infrared radiation lamp 1, an upper mold base 2, and a lower mold base 3. The infrared radiation lamp 1 is used to heat the optical film; the upper mold base 2 is used to concentrate heat so that the energy is equal throughout the entire area; and the lower mold base 3 is used to place the optical film. The infrared radiation lamp 1 and the lower mold base 3 are respectively arranged on opposite sides of the upper mold base 2. The upper mold base 2 is provided with a heating channel 4. A transparent baffle (not shown in the figure) is provided on the side of the upper mold base 2 facing away from the lower mold base 3. The transparent baffle can be fixed to the heating channel 4 of the upper mold base 2 by snapping, screwing, or bonding, that is, the transparent baffle closes the heating channel 4. In this embodiment, the transparent baffle is quartz glass. When the upper mold base 2 and the lower mold base 3 are closed, the quartz glass and the lower mold base 3 can close the heating channel 4 to form a heating area. The infrared radiation lamp 1 irradiates the heating channel 4 and the lower mold through the transparent baffle.

[0032] When the optical film of this embodiment is placed on the lower mold base 3, it is fixed to the lower mold base 3 by adsorption using a vacuum suction cup (not shown in the figure); the lower mold base 3 is fixed, and the other components except the lower mold base 3 are driven by the same set of screws (not shown in the figure) to move up and down, that is, the infrared radiation lamp 1 and the upper mold base 2 are moved closer to or away from the lower mold base 3 to achieve mold closing or mold separation. When it is necessary to heat the optical film, the optical film is placed on the lower mold base 3, and the heating channel 4 extends to the lower mold base 3. In this embodiment, the upper mold base 2 is attached to the lower mold base 3 by screw driving to form a heating area. That is, the heating channel 4 when the upper and lower molds are closed makes the energy inside the heating area uniform, that is, the heating temperature inside the heating area can be made uniform, so that the optical film can be heated uniformly, and the quality of the finished product can be better guaranteed.

[0033] Furthermore, the heating method of the optical film of the present application can reach the required temperature in a short time, which can overcome the problem in the prior art that it takes a long time to heat up to the set temperature after the heat source is turned on, thereby affecting production efficiency.

[0034] In some embodiments, the heating mechanism for heating the optical film further comprises a mounting base 5, and the infrared radiation lamp 1 is mounted on the mounting base 5. In this embodiment, the infrared radiation lamp 1 is fixed to the mounting base 5 by screws, so that the infrared radiation lamp 1 can be easily installed and removed.

[0035] In some embodiments, the heating mechanism for heating the optical film further includes a driver 6 and a frame 7. In this embodiment, the driver 6 is a cylinder. In other embodiments, the driver 6 may also be an electric cylinder. The cylinder is screwed to the frame 7 and drives the infrared radiation lamp 1 toward or away from the upper mold base 2. The cylinder is used to adjust the distance between the infrared radiation lamp 1 and the upper mold according to actual needs.

[0036] In some embodiments, the upper mold base 2 is provided with a first observation window 8, and a first transparent observation member (not shown) is installed in the first observation window 8. In this embodiment, the first transparent observation member is made of quartz glass, so that the internal conditions can be observed through the first observation window 8 while maintaining a uniform internal temperature.

[0037] Reference Figure 2 In some embodiments, the heating mechanism for heating the optical film further includes an infrared temperature sensor 9. When the upper mold base 2 and the lower mold base 3 are in close contact, the infrared temperature sensor 9 faces the lower mold base 3 through the first observation window 8. In other words, the infrared temperature sensor 9 collects the temperature of the optical film through the first observation window 8, enabling real-time monitoring of the temperature of the optical film. When the optical film reaches a set temperature, the infrared radiation lamp 1 stops heating.

[0038] In some embodiments, the heating mechanism for heating the optical film further includes a fixing base 10 for mounting an infrared temperature sensor 9. The fixing base 10 is mounted on the upper mold base 2. In this embodiment, the fixing base 10 is fixed to the upper mold base 2 by screwing. In other embodiments, the fixing base 10 may be fixed by other means such as clamping or welding. The infrared temperature sensor 9 is mounted on the fixing base 10, making it easy to install the infrared temperature sensor 9.

[0039] In some embodiments, the heating mechanism for heating the optical film further includes a first locking member and a second locking member (neither of which is shown in the figures). The fixing seat 10 is provided with a mounting hole 11 and an adjustment hole 12. In this embodiment, the adjustment hole 12 is in the shape of a waist hole. The first locking member fixes the infrared temperature sensor 9 through the mounting hole 11, and the second locking member fixes the infrared temperature sensor 9 through the adjustment hole 12. In this embodiment, the first locking member and the second locking member both include bolts and nuts. The bolts pass through the fixing seat 10 and are screwed to the infrared temperature sensor 9 and the nuts. When the bolts and nuts are tightened, the infrared temperature sensor 9 can be fixed; when the bolts and nuts are rotated, the infrared temperature sensor 9 can be rotated along the direction of the adjustment hole 12, thereby changing the orientation of the infrared temperature sensor 9. Therefore, the angle of the infrared temperature sensor 9 can be easily adjusted so that it can be accurately aligned with the optical film for temperature measurement.

[0040] In some embodiments, the lower mold base 3 is provided with a second observation window 13 , which is equipped with a second transparent observation member (not shown in the figure) so as to enable observation of the situation inside the lower mold base 3 , such as the situation of the vacuum suction cup adsorbing the optical film.

[0041] Reference Figure 3In some embodiments, the heating mechanism for heating the optical film further includes an auxiliary ring 14 with elastic deformation capability. In this embodiment, the auxiliary ring 14 is made of rubber. In other embodiments, other materials may be used. A mounting groove 15 is provided on the side of the upper mold base 2 facing the lower mold base 3. In this embodiment, the mounting groove 15 is in the shape of a square ring, surrounding the heating channel 4, and leaving a gap between the heating channel 4. The auxiliary ring 14 is installed in the mounting groove 15, that is, the auxiliary ring 14 is fixedly connected to the upper mold base 2 corresponding to the mounting groove 15 in the mounting groove 15. In this embodiment, the auxiliary ring 14 is in a square ring structure, so it presses along a circle of the optical film, and the auxiliary ring 14 partially extends out of the mounting groove 15. When the upper mold base 2 and the lower mold base 3 are closed, the auxiliary ring 14 presses along a circle of the optical film, so that the pressing force on the optical film can be the same, making the optical film smoother. At the same time, the elastic deformation of the auxiliary ring 14 can better protect the optical film.

[0042] The implementation principle of a heating mechanism for heating an optical film in an embodiment of the present application is as follows: the lower mold base 3 is used to place the optical film, and when the upper mold base 2 and the lower mold base 3 are closed, the optical film is fixed between the upper mold base 2 and the lower mold base 3, and the infrared radiation lamp 1 irradiates and heats the heating channel 4 and the lower mold, so that the energy of the light in the entire heating channel 4 is the same, the heat in the heating channel 4 is the same, and the optical film is heated evenly, so that the optical film is heated evenly, thereby ensuring the quality of the finished product.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A heating mechanism for heating an optical film, characterized in that: It includes an infrared radiation lamp, an upper mold base and a lower mold base, the infrared radiation lamp and the lower mold base are respectively arranged on two opposite sides of the upper mold base, the upper mold base is provided with a heating channel, a transparent baffle is provided on the side of the upper mold base away from the lower mold base, the lower mold base is used to place the optical film, when the upper mold base and the lower mold base are closed, the optical film is fixed between the upper mold base and the lower mold base, the heating channel extends to the lower mold base, and the infrared radiation lamp irradiates the heating channel and the lower mold through the transparent baffle.

2. A heating mechanism for heating an optical film according to claim 1, characterized in that: It also includes an auxiliary ring with elastic deformation ability. A mounting groove is opened on one side of the upper mold base facing the lower mold base. The auxiliary ring is installed in the mounting groove, and the auxiliary ring partially extends out of the mounting groove.

3. A heating mechanism for heating an optical film according to claim 1, characterized in that: It also includes a mounting base, and the infrared radiation lamp is mounted on the mounting base.

4. A heating mechanism for heating an optical film according to claim 1 or 3, characterized in that: It also includes a driving member, which drives the infrared radiation lamp to approach or move away from the upper mold base.

5. A heating mechanism for heating an optical film according to claim 1, characterized in that: The upper die seat is provided with a first observation window, and the first observation window is provided with a first transparent observation piece.

6. A heating mechanism for heating an optical film according to claim 5, characterized in that: It also includes an infrared temperature sensor. When the upper mold base and the lower mold base are in mold closing, the infrared temperature sensor is directed toward the lower mold base through the first observation window.

7. A heating mechanism for heating an optical film according to claim 6, characterized in that: It also includes a fixing seat, which is installed on the upper mold base, and the infrared temperature sensor is installed on the fixing seat.

8. A heating mechanism for heating an optical film according to claim 7, characterized in that: It also includes a first locking member and a second locking member. The fixing seat is provided with a mounting hole and an adjustment hole. The first locking member fixes the infrared temperature sensor through the mounting hole, and the second locking member fixes the infrared temperature sensor through the adjustment hole.

9. The heating mechanism for heating an optical film according to claim 1, characterized in that: The lower mold base is provided with a second observation window, and the second observation window is installed with a second transparent observation piece.

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