Temperature resistance testing device for polyimide film

Abstract

The utility model discloses a polyimide film temperature resistance testing device, which belongs to the technical field of polyimide films and comprises a transverse temperature measuring box, and U-shaped heating pipes are arranged at the top end and the bottom end in the transverse temperature measuring box. An adjusting mechanism used for adjusting the distance between the two U-shaped heating pipes is arranged in the transverse temperature measuring box. A rectangular fixing column is fixed to one end in the transverse temperature measuring box, a plurality of rotatable circular illuminating lamps are arranged in the rectangular fixing column, through a series of design, the distance between the two U-shaped heating pipes can be adjusted, the distance between the film and the transverse temperature measuring box can be adjusted, and then the temperature change of the surface of the film can be adjusted; and the rotatable circular illuminating lamp is arranged to simulate sunlight irradiation at different angles and irradiation intensity, so that the test is more reliable.

Description

Technical Field

[0001] The utility model belongs to the technical field of polyimide films, and in particular relates to a polyimide film temperature resistance testing device. Background Art

[0002] Thin film refers to a thin sheet or layer of material. In the field of engineering and technology, thin film usually refers to materials with a thickness ranging from nanometers to hundreds of microns. Thin films are widely used in optics, electronics, energy, medical and other fields, such as optical films, electronic films, solar cells, flexible displays, medical diagnosis, etc.

[0003] Polyimide film is a high-performance, high-temperature stable and chemically stable film material, commonly used in electronics, aerospace, automobiles and other fields. It has excellent mechanical properties, high temperature resistance, chemical resistance, electrical insulation and dimensional stability, and is widely used in the preparation of flexible electronic devices, photovoltaic devices, liquid crystal displays, thermal insulation layers, capacitors, thermal insulation materials and other fields. In order to ensure its stability and reliability in practical applications, its temperature resistance needs to be strictly tested;

[0004] However, there are some problems with the existing polyimide film temperature resistance test device. First, due to the fixed distance between the film and the U-shaped heating tube, it is difficult to adjust the temperature change on the film surface, which limits the flexibility and accuracy of the test. The existing test device lacks a circular light to simulate sunlight, and cannot simulate sunlight at different angles, which affects the authenticity and reliability of the test results. Therefore, we designed a polyimide film temperature resistance test device to provide another technical solution to the above technical problems. Utility Model Content

[0005] The utility model aims to provide a polyimide film temperature resistance testing device to solve the problems of the prior art in the use process proposed in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a polyimide film temperature resistance test device, comprising a transverse temperature measuring box, wherein the top and bottom of the transverse temperature measuring box are both provided with U-shaped heating tubes, and the interior of the transverse temperature measuring box is provided with an adjustment mechanism for adjusting the distance between the two U-shaped heating tubes;

[0007] A rectangular fixed column is fixed at one end of the horizontal temperature measuring box, and a plurality of rotatable circular lighting lamps are arranged inside the rectangular fixed column. Rotating mechanisms for rotating the circular lighting lamps are arranged at both ends of the rectangular fixed column and inside the horizontal temperature measuring box.

[0008] Preferably, the adjustment mechanism includes a driving motor, the top bolt of the horizontal temperature measuring box is fixed with the driving motor, the output end of the driving motor is fixed with a first vertical threaded rod, the bottom of the first vertical threaded rod is fixed with a second vertical threaded rod, the thread rotation direction of the first vertical threaded rod and the second vertical threaded rod are opposite, the outer sides of the first vertical threaded rod and the second vertical threaded rod are both threadedly connected with a vertical lifting plate, and the vertical lifting plate is close to one end of the U-shaped heating tube and is fixedly connected to the U-shaped heating tube.

[0009] Preferably, both ends of the vertical lifting plate are slidably connected with vertical guide rods, and the vertical guide rods are located inside the horizontal temperature measuring box and fixedly connected to the horizontal temperature measuring box.

[0010] Preferably, a partition is rotatably connected to the connection point between the first vertical threaded rod and the second vertical threaded rod through a bearing, and the partition is close to one end of the horizontal temperature measuring box and is fixedly connected to the horizontal temperature measuring box.

[0011] Preferably, the rotating mechanism includes a second cylinder, the output end of the second cylinder is rotatably connected to the first oblique rotating column via a pin shaft, one side of the first oblique rotating column is rotatably connected to the second oblique rotating column via a pin shaft, a transverse rotating shaft is fixed inside one side of the second oblique rotating column, the transverse rotating shaft passes through the interior of the rectangular fixed column and is rotatably connected to the rectangular fixed column via a bearing, and the rectangular fixed column passes through the interior of the circular light and is fixedly connected to the circular light.

[0012] Preferably, the outer side of the circular lighting lamp is slidably connected to a circular sliding tube, a lens is arranged inside the bottom end of the circular sliding tube, a circular sliding ring is fixed to the outer side of the top end of the circular sliding tube, a first cylinder is fixed on both sides of the circular lighting lamp, and the output end of the first cylinder is fixedly connected to the circular sliding ring.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model can adjust the spacing between the two U-shaped heating tubes and the distance between the film and the horizontal temperature measuring box through a series of designs, thereby adjusting the temperature change on the surface of the film. A rotatable circular lighting lamp is provided to simulate sunlight exposure at different angles and exposure intensities, making the test more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a structural cross-sectional view of the interior of the transverse temperature measuring box of the utility model;

[0017] Figure 3It is a schematic structural diagram of the first vertical threaded rod and the second vertical threaded rod of the utility model;

[0018] Figure 4 It is a schematic structural diagram of the first oblique rotating column and the second oblique rotating column of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the circular sliding tube and the lens of the utility model.

[0020] In the figure: 1. horizontal temperature measuring box; 2. U-shaped heating tube; 3. driving motor; 4. first vertical threaded rod; 5. second vertical threaded rod; 6. vertical guide rod; 7. vertical lifting plate; 8. circular lighting lamp; 9. circular sliding tube; 10. lens; 11. circular sliding ring; 12. first cylinder; 13. second cylinder; 14. first oblique rotating column; 15. second oblique rotating column; 16. rectangular fixed column; 17. horizontal rotating axis. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1-5 A polyimide film temperature resistance test device comprises a transverse temperature measuring box 1, a U-shaped heating tube 2 is arranged at the top and the bottom of the transverse temperature measuring box 1, and an adjustment mechanism for adjusting the distance between the two U-shaped heating tubes 2 is arranged inside the transverse temperature measuring box 1;

[0023] A rectangular fixed column 16 is fixed at one end of the horizontal temperature measuring box 1, and a plurality of rotatable circular illumination lamps 8 are arranged inside the rectangular fixed column 16. A rotating mechanism for rotating the circular illumination lamps 8 is arranged at both ends of the rectangular fixed column 16 and inside the horizontal temperature measuring box 1.

[0024] The adjustment mechanism includes a driving motor 3, the top end of the horizontal temperature measuring box 1 is bolted with the driving motor 3, the output end of the driving motor 3 is fixed with a first vertical threaded rod 4, the bottom of the first vertical threaded rod 4 is fixed with a second vertical threaded rod 5, the first vertical threaded rod 4 and the second vertical threaded rod 5 have opposite thread rotation directions, the outer sides of the first vertical threaded rod 4 and the second vertical threaded rod 5 are both threadedly connected with a vertical lifting plate 7, the vertical lifting plate 7 is close to one end of the U-shaped heating tube 2 and is fixedly connected to the U-shaped heating tube 2;

[0025] Both ends of the vertical lifting plate 7 are slidably connected with vertical guide rods 6, which are located inside the horizontal temperature measuring box 1 and fixedly connected to the horizontal temperature measuring box 1. Through the arrangement of the vertical guide rods 6, the vertical lifting plate 7 can slide vertically on the outside of the vertical guide rods 6, thereby guiding the movement trajectory of the vertical lifting plate 7;

[0026] A partition is rotatably connected to the connection between the first vertical threaded rod 4 and the second vertical threaded rod 5 through a bearing, and the partition is close to one end of the horizontal temperature measuring box 1 and is fixedly connected to the horizontal temperature measuring box 1, so that the connection between the first vertical threaded rod 4 and the second vertical threaded rod 5 can be more stable, and the connection between the first vertical threaded rod 4 and the second vertical threaded rod 5 is prevented from bending, so as to facilitate the synchronous rotation of the first vertical threaded rod 4 and the second vertical threaded rod 5;

[0027] The operation of the driving motor 3 enables the first vertical threaded rod 4 and the second vertical threaded rod 5 to rotate. The rotation of the first vertical threaded rod 4 and the second vertical threaded rod 5 enables the vertical lifting plate 7 to slide outside the vertical guide rod 6, thereby changing the distance between the two vertical lifting plates 7, so as to adjust the change of the surface temperature of the film.

[0028] The rotating mechanism includes a second cylinder 13, the output end of the second cylinder 13 is rotatably connected to a first oblique rotating column 14 via a pin shaft, one side of the first oblique rotating column 14 is rotatably connected to a second oblique rotating column 15 via a pin shaft, a transverse rotating shaft 17 is fixed inside one side of the second oblique rotating column 15, the transverse rotating shaft 17 passes through the interior of a rectangular fixed column 16 and is rotatably connected to the rectangular fixed column 16 via a bearing, and the rectangular fixed column 16 passes through the interior of the circular light lamp 8 and is fixedly connected to the circular light lamp 8;

[0029] The operation of the second cylinder 13 enables the first oblique rotating column 14 to move, and the movement of the first oblique rotating column 14 enables the second oblique rotating column 15 to drive the transverse rotating shaft 17 to rotate through the second oblique rotating column 15, and the rotation of the transverse rotating shaft 17 enables the plurality of circular lighting lamps 8 to rotate, so as to adjust the illumination angle of the circular lighting lamps 8;

[0030] A circular sliding tube 9 is slidably connected to the outer side of the circular illumination lamp 8, a lens 10 is arranged inside the bottom end of the circular sliding tube 9, a circular sliding ring 11 is fixed to the outer side of the top end of the circular sliding tube 9, and first cylinders 12 are fixed on both sides of the circular illumination lamp 8, and the output end of the first cylinder 12 is fixedly connected to the circular sliding ring 11;

[0031] The operation of the first cylinder 12 enables the circular sliding ring 11 to move, and the movement of the circular sliding ring 11 enables the lens 10 to move through the circular sliding tube 9. The movement of the lens 10 enables the light source illuminated by the circular lighting lamp 8 to be zoomed, so as to adjust the illumination area of ​​the circular lighting lamp 8;

[0032] Through a series of designs, the distance between the two U-shaped heating tubes 2 can be adjusted, the distance between the film and the horizontal temperature measuring box 1 can be adjusted, and then the temperature change on the surface of the film can be adjusted. A rotatable circular lighting lamp 8 is provided to simulate sunlight exposure at different angles and exposure intensities, making the test more reliable.

[0033] Working principle: The operation of the driving motor 3 enables the first vertical threaded rod 4 and the second vertical threaded rod 5 to rotate. The rotation of the first vertical threaded rod 4 and the second vertical threaded rod 5 enables the vertical lifting plate 7 to slide on the outside of the vertical guide rod 6, thereby changing the distance between the two vertical lifting plates 7, so as to adjust the change of the surface temperature of the film;

[0034] The operation of the second cylinder 13 enables the first oblique rotating column 14 to move, and the movement of the first oblique rotating column 14 enables the second oblique rotating column 15 to drive the transverse rotating shaft 17 to rotate through the second oblique rotating column 15, and the rotation of the transverse rotating shaft 17 enables the plurality of circular lighting lamps 8 to rotate, so as to adjust the illumination angle of the circular lighting lamps 8;

[0035] The operation of the first cylinder 12 enables the circular sliding ring 11 to move. The movement of the circular sliding ring 11 enables the lens 10 to move through the circular sliding tube 9. The movement of the lens 10 enables the light source of the circular lighting lamp 8 to be zoomed to adjust the illumination area of ​​the circular lighting lamp 8.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyimide film temperature resistance testing device, characterized in that: It comprises a transverse temperature measuring box (1), wherein the top and bottom ends of the interior of the transverse temperature measuring box (1) are both provided with U-shaped heating tubes (2), and the interior of the transverse temperature measuring box (1) is provided with an adjustment mechanism for adjusting the distance between the two U-shaped heating tubes (2); A rectangular fixed column (16) is fixed at one end inside the transverse temperature measuring box (1), a plurality of rotatable circular lighting lamps (8) are arranged inside the rectangular fixed column (16), and a rotating mechanism for rotating the circular lighting lamps (8) is arranged at both ends of the rectangular fixed column (16) and inside the transverse temperature measuring box (1).

2. A polyimide film temperature resistance testing device according to claim 1, characterized in that: The adjustment mechanism comprises a drive motor (3), the top end of the horizontal temperature measuring box (1) is bolted with the drive motor (3), the output end of the drive motor (3) is fixed with a first vertical threaded rod (4), the bottom of the first vertical threaded rod (4) is fixed with a second vertical threaded rod (5), the first vertical threaded rod (4) and the second vertical threaded rod (5) have opposite thread rotation directions, the outer sides of the first vertical threaded rod (4) and the second vertical threaded rod (5) are both threadedly connected with a vertical lifting plate (7), and the vertical lifting plate (7) is close to one end of the U-shaped heating tube (2) and is fixedly connected to the U-shaped heating tube (2).

3. A polyimide film temperature resistance testing device according to claim 2, characterized in that: Both ends of the vertical lifting plate (7) are slidably connected to vertical guide rods (6), and the vertical guide rods (6) are located inside the horizontal temperature measuring box (1) and are fixedly connected to the horizontal temperature measuring box (1).

4. A polyimide film temperature resistance testing device according to claim 2, characterized in that: A partition is rotatably connected to the connection point between the first vertical threaded rod (4) and the second vertical threaded rod (5) via a bearing, and the partition is close to one end of the horizontal temperature measuring box (1) and is fixedly connected to the horizontal temperature measuring box (1).

5. A polyimide film temperature resistance testing device according to claim 1, characterized in that: The rotating mechanism comprises a second cylinder (13), the output end of the second cylinder (13) is rotatably connected to a first oblique rotating column (14) via a pin shaft, one side of the first oblique rotating column (14) is rotatably connected to a second oblique rotating column (15) via a pin shaft, a transverse rotating shaft (17) is fixed inside one side of the second oblique rotating column (15), the transverse rotating shaft (17) passes through the interior of a rectangular fixed column (16) and is rotatably connected to the rectangular fixed column (16) via a bearing, and the rectangular fixed column (16) passes through the interior of a circular lighting lamp (8) and is fixedly connected to the circular lighting lamp (8).

6. A polyimide film temperature resistance testing device according to claim 5, characterized in that: The outer side of the circular illumination lamp (8) is slidably connected to a circular sliding tube (9), a lens (10) is arranged inside the bottom end of the circular sliding tube (9), a circular sliding ring (11) is fixed to the outer side of the top end of the circular sliding tube (9), and first cylinders (12) are fixed on both sides of the circular illumination lamp (8), and the output end of the first cylinder (12) is fixedly connected to the circular sliding ring (11).

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