Vacuum evaporation device for PET (Polyethylene Terephthalate) aluminum laminated film

Abstract

The utility model discloses a PET aluminum laminated film vacuum evaporation device which comprises a working box, a vacuum cover is fixedly installed on the top of the working box, a connecting column is fixedly installed in the vacuum cover, a hollow pipe is fixedly connected to the bottom end of the connecting column, a mounting plate is rotationally connected to the outer side of the hollow pipe, and a vacuum pump is installed on the mounting plate. And two clamping mechanisms are mounted at the bottom of the mounting plate. The working box is started to vacuumize the interior of the vacuum cover, the heating plate is started to heat an evaporation material in the heating vessel, the evaporation material is evaporated to coat the surface of an arc-shaped base material, and in order to guarantee uniform coating in the coating process, the driving mechanism is started to drive the mounting plate to slowly swing left and right in a reciprocating manner, so that the coating uniformity is ensured. The arc-shaped base material swings synchronously, and the downward surface of the arc-shaped base material is in uniform contact with evaporated material molecules, so that the device has the advantages that the coating uniformity of the arc-shaped base material is better, and the coating effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum-plated film production, in particular to a PET aluminum-plated film vacuum evaporation device. Background Art

[0002] The aluminized film vacuum evaporation device evaporates metal under vacuum conditions. The evaporated metal forms a thin film on the surface of the substrate. The plated metal materials can be gold, silver, copper, iron and zinc, among which aluminum is the most commonly used material. It can evaporate the substrate in a vacuum environment and is suitable for the processing and production of high-efficiency, high-quality new aluminized films.

[0003] However, vacuum evaporation devices in current technology generally perform coating processing on straight-surface substrates. When coating a curved substrate, the curvature of the curved surface causes different amounts of contact between the substrate surface and the bottom evaporation material, which can cause uneven coating thickness. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a PET aluminum film vacuum evaporation device to achieve better coating uniformity for curved surface substrates and ensure better coating effect.

[0005] To achieve the above purpose, the utility model adopts the following technical solution.

[0006] A PET aluminum-coated film vacuum evaporation device comprises a working box, a vacuum cover is fixedly installed on the top of the working box, a connecting column is fixedly installed inside the vacuum cover, a hollow tube is fixedly connected to the bottom end of the connecting column, a mounting plate is rotatably connected to the outside of the hollow tube, two clamping mechanisms are installed at the bottom of the mounting plate, a driving mechanism is installed inside the hollow tube, the driving mechanism is connected and cooperated with the mounting plate, a heating plate is installed on the top of the working box, and a heating dish is fixedly installed on the top of the heating plate.

[0007] As a further description of the above technical solution: the driving mechanism includes a servo motor, a transmission rod, a gear and a half-toothed ring. The servo motor is fixedly installed inside the hollow tube. The output end of the servo motor is fixedly connected to the transmission rod through a coupling. The other end of the transmission rod is plugged into the front end of the hollow tube. The front end of the transmission rod is fixedly connected to the gear. The half-toothed ring is installed on the mounting plate, and the outer side of the gear is meshed with the half-toothed ring.

[0008] As a further description of the above technical solution: a protruding ring is installed at the front of the mounting plate, and the outer side of the half-toothed ring is fixedly installed to the inner side of the protruding ring.

[0009] As a further description of the above technical solution: the clamping mechanism includes a sliding clamp and an adjusting screw, the sliding clamp is slidably connected to the bottom of the mounting plate, one end of the adjusting screw is inserted into the interior of the mounting plate and rotatably connected thereto, and the outer side of the adjusting screw is threadedly connected to the inner side of the sliding clamp.

[0010] As a further description of the above technical solution: a rubber tooth plate is fixedly connected to one side of the sliding clamp block.

[0011] As a further description of the above technical solution: detachable observation windows are sealed and installed on both sides of the vacuum cover.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] This solution achieves the advantage of better coating uniformity for curved surface substrates and guaranteed coating effect by cooperating the driving mechanism with the hollow tube, the mounting plate and the clamping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0016] Figure 3 It is a partial side cross-sectional structural schematic diagram of the utility model;

[0017] Figure 4 It is a partial three-dimensional structural schematic diagram of the utility model.

[0018] Description of the numbers in the figure:

[0019] 1. Work box; 2. Vacuum cover; 21. Observation window; 3. Connecting column; 4. Hollow tube; 5. Mounting plate; 51. Protruding ring; 6. Clamping mechanism; 61. Sliding clamp block; 611. Rubber tooth plate; 62. Adjusting screw; 7. Driving mechanism; 71. Servo motor; 72. Transmission rod; 73. Gear; 74. Semi-toothed ring; 8. Heating plate; 9. Heating dish. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] See also Figures 1 to 4In the utility model, a PET aluminum-plated film vacuum evaporation device comprises a working box 1, a vacuum cover 2 is fixedly installed on the top of the working box 1, a connecting column 3 is fixedly installed inside the vacuum cover 2, a hollow tube 4 is fixedly connected to the bottom end of the connecting column 3, a mounting plate 5 is rotatably connected to the outer side of the hollow tube 4, two clamping mechanisms 6 are installed at the bottom of the mounting plate 5, a driving mechanism 7 is installed inside the hollow tube 4, the driving mechanism 7 is connected and matched with the mounting plate 5, a heating plate 8 is installed on the top of the working box 1, and a heating dish 9 is fixedly installed on the top of the heating plate 8.

[0022] In the utility model, the working box 1 is used as the supporting body of the device. First, the arc-shaped substrate is placed in the interior of the vacuum cover 2, and two clamping mechanisms 6 are used to squeeze and clamp the two sides of the arc-shaped substrate from both sides to stably position it between the mounting plate 5. Then, the working box 1 is started to evacuate the interior of the vacuum cover 2, and the heating plate 8 is started to heat the evaporation material in the heating dish 9 to evaporate it to coat the surface of the arc-shaped substrate. In order to ensure uniform coating during the coating process, the driving mechanism 7 is started to drive the mounting plate 5 to swing back and forth slowly, so that the arc-shaped substrate swings synchronously, so that its downward surface is in uniform contact with the evaporated material molecules, thereby achieving the advantages of better coating uniformity for the arc-shaped substrate and ensuring the coating effect, solving the problem in the prior art that the straight substrate is generally coated, and when the curved substrate needs to be coated, the amount of contact between the substrate surface and the bottom evaporation material is different due to the curvature of the curved surface, which will cause uneven coating thickness.

[0023] See also Figure 3 , wherein: the driving mechanism 7 includes a servo motor 71, a transmission rod 72, a gear 73 and a semi-toothed ring 74, the servo motor 71 is fixedly installed inside the hollow tube 4, the output end of the servo motor 71 is fixedly connected to the transmission rod 72 through a coupling, the other end of the transmission rod 72 is plugged into the front end of the hollow tube 4, the front end of the transmission rod 72 is fixedly connected to the gear 73, the semi-toothed ring 74 is installed on the mounting plate 5, and the outer side of the gear 73 is meshed with the semi-toothed ring 74.

[0024] In the utility model, the servo motor 71 is started to drive the transmission rod 72 to rotate, thereby driving the gear 73 to rotate. The gear 73 drives the mounting plate 5 to swing back and forth slowly through the half gear ring 74, so as to drive the arc-shaped substrate to swing left and right, making its coating more uniform.

[0025] See also Figure 3 and Figure 4 , wherein: a protruding ring 51 is installed at the front of the mounting plate 5 , and the outer side of the half gear ring 74 is fixedly installed to the inner side of the protruding ring 51 .

[0026] In the utility model, the connecting position between the semi-toothed ring 74 and the gear 73 is protected by the protruding ring 51, and the structure is safer and more reasonable.

[0027] See also Figure 2 , wherein: the clamping mechanism 6 includes a sliding clamp block 61 and an adjusting screw 62, the sliding clamp block 61 is slidably connected to the bottom of the mounting plate 5, one end of the adjusting screw 62 is inserted into the inside of the mounting plate 5 and rotatably connected thereto, and the outer side of the adjusting screw 62 is threadedly connected to the inner side of the sliding clamp block 61.

[0028] In the present invention, the sliding clamp block 61 is driven to slide along the bottom of the mounting plate 5 by rotating the adjusting screw 62, so as to clamp the side of the arc-shaped substrate, reduce the clamping area, and ensure the coating effect.

[0029] See also Figure 2 , wherein: a rubber tooth plate 611 is fixedly connected to one side of the sliding clamp block 61 .

[0030] In the present invention, the rubber tooth plate 611 allows the sliding clamp block 61 to have better clamping and limiting stability on the side of the arc-shaped substrate.

[0031] See also Figure 1 , wherein: detachable observation windows 21 are sealed and installed on both sides of the vacuum cover 2.

[0032] In the utility model, the detachable observation window 21 facilitates loading and unloading of materials and facilitates observation of the internal coating condition.

[0033] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A PET aluminum film vacuum evaporation device, comprising a working box (1), characterized in that: A vacuum cover (2) is fixedly installed on the top of the working box (1), a connecting column (3) is fixedly installed inside the vacuum cover (2), a hollow tube (4) is fixedly connected to the bottom end of the connecting column (3), a mounting plate (5) is rotatably connected to the outer side of the hollow tube (4), two clamping mechanisms (6) are installed at the bottom of the mounting plate (5), a driving mechanism (7) is installed inside the hollow tube (4), and the driving mechanism (7) is connected and matched with the mounting plate (5), a heating plate (8) is installed on the top of the working box (1), and a heating dish (9) is fixedly installed on the top of the heating plate (8).

2. A PET aluminum film vacuum evaporation device according to claim 1, characterized in that: The driving mechanism (7) comprises a servo motor (71), a transmission rod (72), a gear (73) and a semi-gear ring (74); the servo motor (71) is fixedly mounted inside the hollow tube (4); the output end of the servo motor (71) is fixedly connected to the transmission rod (72) via a coupling; the other end of the transmission rod (72) is plugged into the front end of the hollow tube (4); the front end of the transmission rod (72) is fixedly connected to the gear (73); the semi-gear ring (74) is mounted on the mounting plate (5); and the outer side of the gear (73) is meshed with the semi-gear ring (74).

3. A PET aluminum film vacuum evaporation device according to claim 2, characterized in that: A protruding ring (51) is installed at the front of the mounting plate (5), and the outer side of the half-toothed ring (74) is fixedly mounted to the inner side of the protruding ring (51).

4. A PET aluminum film vacuum evaporation device according to claim 1, characterized in that: The clamping mechanism (6) comprises a sliding clamp (61) and an adjusting screw (62), wherein the sliding clamp (61) is slidably connected to the bottom of the mounting plate (5), one end of the adjusting screw (62) is inserted into the interior of the mounting plate (5) and is rotatably connected thereto, and the outer side of the adjusting screw (62) is threadedly connected to the inner side of the sliding clamp (61).

5. A PET aluminum film vacuum evaporation device according to claim 4, characterized in that: A rubber tooth plate (611) is fixedly connected to one side of the sliding clamp block (61).

6. A PET aluminum film vacuum evaporation device according to claim 1, characterized in that: Removable observation windows (21) are sealed and installed on both sides of the vacuum cover (2).

Images