Trough for coating PET (Polyethylene Terephthalate) protective film

Abstract

The utility model discloses a PET protective film coating trough which comprises a trough body, the interior of the trough body is fixedly connected with a wedge-shaped segmentation block, the upper surface of the wedge-shaped segmentation block is provided with a bubble overflow port, the interior of the trough body is provided with a coating area, the two sides of the coating area are provided with gluing roller installation grooves, and the gluing roller installation grooves are provided with gluing rollers. A coating area is arranged in the trough body, a bubble collecting area is arranged on one side of the coating area, a liquid adding opening is fixedly connected to the side surface of the trough body, a first liquid discharging opening is fixedly connected to the side surface of the trough body, and a second liquid discharging opening is formed in the outer surface of the trough body. According to the utility model, the liquid level meter is arranged on the surface of the coating area and can monitor the water level of the coating liquid, when the coating liquid is reduced, the liquid level meter can send a signal to the alarm, and the alarm can start the water pump after giving out an early warning, so that the coating liquid is conveyed into the coating area, the coating liquid is automatically supplemented, and the continuity of the coating process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of protective film coating, in particular to a material trough for coating a PET protective film. Background Art

[0002] PET protective film is a polyester film, the full name is polyethylene terephthalate protective film, it has many excellent properties, such as high transparency, excellent physical properties and chemical stability, high temperature resistance, strong impact resistance, moisture-proof, waterproof, dust-proof, anti-static, etc. In addition, the surface of PET protective film is smooth and transparent, which can block most harmful light and electromagnetic waves from passing through. The PET protective film coating trough is a special equipment for storing and supplying coating liquid or coating material, which plays a key role in the production process of PET protective film. This trough is usually designed to accommodate a certain amount of coating liquid, and the coating liquid is evenly transported to the coating machine by a certain method (such as pumping or gravity) to realize the coating operation on the PET substrate.

[0003] In the PET protective film coating material trough disclosed in the Chinese utility model patent application disclosure CN216137578U, the rotating motor 26 located in the power chamber 25 works, thereby driving the rotating shaft 22 installed at the output end of the rotating motor 26 to rotate in the paddle mounting groove 21, and the rotating shaft 22 drives the inclined paddle 24 to paddle at the notch end of the paddle mounting groove 21 through the rotating rod 23, thereby improving the fluidity of the bubble pressure-sensitive adhesive near the wedge-shaped dividing block 2, and draining the bubble pressure-sensitive adhesive to the bubble overflow port 3. However, the existing device structure is relatively simple, and the coating liquid will continue to decrease during use, requiring manual observation of its position and then increase, and the continuity of the coating process is poor. Utility Model Content

[0004] The utility model aims to provide a trough for coating a PET protective film to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a PET protective film coating trough, comprising:

[0006] A trough body, wherein a wedge-shaped partition block is fixedly connected inside the trough body, a bubble overflow port is arranged on the upper surface of the wedge-shaped partition block, a coating area is arranged inside the trough body, glue roller mounting grooves are arranged on both sides of the coating area, a bubble collecting area is arranged on one side of the coating area, a liquid adding port is fixedly connected to the side surface of the trough body, a first liquid discharge port is fixedly connected to the side surface of the trough body, and a second liquid discharge port is arranged on the outer surface of the trough body;

[0007] A hydraulic device is provided on the upper surface of the coating area, a connecting block is fixedly connected to the bottom end of the hydraulic device, a liquid level meter is provided on the lower surface of the connecting block, an alarm is provided on the upper surface of the trough body, and the liquid level meter is electrically connected to the alarm;

[0008] A material collection box is arranged on one side of the material trough body, a water pump is fixedly connected to one side of the material collection box, an output end of the water pump is fixedly connected to a liquid filling port, and the water pump is electrically connected to an alarm.

[0009] Preferably, a movable groove is provided on the upper surface of the wedge-shaped dividing block to facilitate the lifting and lowering of the movable baffle, and a fixed block is fixedly connected to the side surface of the wedge-shaped dividing block.

[0010] Preferably, a motor is fixedly connected to the upper surface of the fixed block, and a threaded rod is fixedly connected to the output end of the motor, so that the motor can drive the threaded rod to rotate.

[0011] Preferably, the outer surface of the threaded rod is threadedly connected with a movable baffle, and the rotation of the threaded rod can drive the movable baffle to move stably, thereby adjusting the size of the bubble overflow port and controlling the efficiency of bubble collection.

[0012] Preferably, the outer surface of the movable baffle is slidably connected to the movable trough, and the lower surface of the trough body is fixedly connected with a supporting leg.

[0013] Preferably, the water pump and the motor are connected to an external power source.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The PET protective film coating tank has a liquid level gauge on the surface of the coating area, which can monitor the water level of the coating liquid. When the coating liquid becomes less, the liquid level gauge will send a signal to the alarm. After the alarm issues an early warning, the water pump will be started to transport the coating liquid to the coating area, automatically replenish the coating liquid, and ensure the continuity of the coating process;

[0016] (2) This type of PET protective film coating material trough has a movable groove set inside the wedge-shaped dividing block, and the movable baffle can move up and down following the rotation of the threaded rod, thereby adjusting the size of the bubble overflow port, making it easier to control the discharge of bubbles and increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the utility model;

[0019] Figure 3It is a structural schematic diagram of a wedge-shaped dividing block of the utility model;

[0020] Figure 4 It is a schematic diagram of the internal structure of the movable groove of the utility model.

[0021] In the figure: 1. trough body; 2. wedge-shaped dividing block; 3. bubble overflow port; 4. glue roller mounting slot; 5. coating area; 6. bubble collection area; 7. liquid filling port; 8. first liquid discharge port; 9. hydraulic device; 10. connecting block; 11. liquid level gauge; 12. alarm; 13. material collection box; 14. water pump; 15. movable trough; 16. fixed block; 17. motor; 18. threaded rod; 19. movable baffle; 20. second liquid discharge port; 21. supporting leg. DETAILED DESCRIPTION

[0022] 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. 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.

[0023] See also Figure 1-4 The utility model provides an embodiment: a material trough for coating a PET protective film, comprising a material trough body 1, a wedge-shaped dividing block 2 is fixedly connected to the inside of the material trough body 1, which can separate a coating area 5 from a bubble collection area 6, which helps to reduce the influence of bubbles on the coating process, a bubble overflow port 3 is provided on the upper surface of the wedge-shaped dividing block 2, so that bubbles can smoothly flow into the bubble collection area 6, a coating area 5 is provided inside the material trough body 1, and glue roller mounting grooves 4 are provided on both sides of the coating area 5 to ensure that the glue roller can be easily installed and disassembled, and a bubble collection area 6 is provided on one side of the coating area 5.

[0024] A liquid adding port 7 is fixedly connected to the side surface of the trough body 1 , a first liquid discharging port 8 is fixedly connected to the side surface of the trough body 1 , and a second liquid discharging port 20 is arranged on the outer surface of the trough body 1 .

[0025] A hydraulic device 9 is provided on the upper surface of the coating area 5, and the hydraulic device 9 can drive the liquid level gauge 11 to rise and fall to adjust the liquid level that needs to be maintained. The bottom end of the hydraulic device 9 is fixedly connected with a connecting block 10, and the lower surface of the connecting block 10 is provided with a liquid level gauge 11, which is convenient for real-time monitoring of the liquid level height of the coating liquid. An alarm 12 is provided on the upper surface of the material tank body 1, and the liquid level gauge 11 is electrically connected to the alarm 12. When the liquid level continues to decrease and separates from the liquid level gauge 11, the liquid level gauge 11 will transmit a signal to the alarm 12 after sensing it, so that the alarm 12 will issue an early warning.

[0026] A collecting box 13 is provided on one side of the material trough body 1, and a water pump 14 is fixedly connected to one side of the collecting box 13. The output end of the water pump 14 is fixedly connected to the liquid filling port 7, and the water pump 14 is electrically connected to the alarm 12. When the alarm 12 issues an early warning, the water pump 14 will be started to transport the coating liquid to the coating area 5, automatically replenish the coating liquid, and ensure the continuity of the coating process.

[0027] A movable groove 15 is provided on the upper surface of the wedge-shaped dividing block 2, which is convenient for the movable baffle 19 to be raised and lowered. A fixed block 16 is fixedly connected to the side surface of the wedge-shaped dividing block 2. A motor 17 is fixedly connected to the upper surface of the fixed block 16. A threaded rod 18 is fixedly connected to the output end of the motor 17. The motor 17 can drive the threaded rod 18 to rotate. The outer surface of the threaded rod 18 is threadedly connected to a movable baffle 19. The rotation of the threaded rod 18 can drive the movable baffle 19 to be stably set and moved, thereby adjusting the size of the bubble overflow port 3 and controlling the efficiency of bubble collection. The outer surface of the movable baffle 19 is slidably connected to the movable groove 15. The lower surface of the trough body 1 is fixedly connected to a supporting leg 21. The water pump 14 and the motor 17 are connected to an external power supply.

[0028] When the embodiment of the present application is in use: the coating liquid is input into the coating area 5 and maintained in a suitable position, the hydraulic device 9 is controlled to drive the connecting block 10 and the liquid level gauge 11 to rise and fall, so that the liquid level gauge 11 is in contact with the coating liquid. During use, when the coating liquid becomes less and separates from the liquid level gauge 11, the liquid level gauge 11 will transmit a signal to the alarm 12, causing the alarm 12 to sound an alarm, and the alarm 12 controls the water pump 14 to open and transport the coating liquid to the coating area 5. When it is necessary to control the discharge of bubbles, the motor 17 can be started to drive the threaded rod 18 to rotate, so that the movable baffle 19 can slide up and down in the movable groove 15, thereby controlling the size of the bubble overflow port 3.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A PET protective film coating tank, characterized in that: include: A material trough body (1), wherein a wedge-shaped partition block (2) is fixedly connected inside the material trough body (1), a bubble overflow port (3) is provided on the upper surface of the wedge-shaped partition block (2), a coating area (5) is provided inside the material trough body (1), glue roller mounting grooves (4) are provided on both sides of the coating area (5), a bubble collecting area (6) is provided on one side of the coating area (5), a liquid adding port (7) is fixedly connected to the side surface of the material trough body (1), a first liquid discharge port (8) is fixedly connected to the side surface of the material trough body (1), and a second liquid discharge port (20) is provided on the outer surface of the material trough body (1); The upper surface of the coating area (5) is provided with a hydraulic device (9), the bottom end of the hydraulic device (9) is fixedly connected to a connecting block (10), the lower surface of the connecting block (10) is provided with a liquid level meter (11), and the upper surface of the trough body (1) is provided with an alarm (12), and the liquid level meter (11) is electrically connected to the alarm (12); A material collection box (13) is provided on one side of the material trough body (1), a water pump (14) is fixedly connected to one side of the material collection box (13), an output end of the water pump (14) is fixedly connected to the liquid filling port (7), and the water pump (14) is electrically connected to the alarm (12).

2. A PET protective film coating trough according to claim 1, characterized in that: The upper surface of the wedge-shaped dividing block (2) is provided with a movable groove (15), and the side surface of the wedge-shaped dividing block (2) is fixedly connected with a fixed block (16).

3. A PET protective film coating trough according to claim 2, characterized in that: A motor (17) is fixedly connected to the upper surface of the fixed block (16), and a threaded rod (18) is fixedly connected to the output end of the motor (17).

4. A PET protective film coating trough according to claim 3, characterized in that: The outer surface of the threaded rod (18) is threadedly connected with a movable baffle (19).

5. A PET protective film coating trough according to claim 4, characterized in that: The outer surface of the movable baffle (19) is slidably connected to the movable trough (15), and the lower surface of the trough body (1) is fixedly connected to a supporting leg (21).

6. A PET protective film coating trough according to claim 3, characterized in that: The water pump (14) and the motor (17) are connected to an external power source.

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