Protective film coating machine

Abstract

The utility model relates to the technical field of coating machines, in particular to a protective film coating machine which comprises a bottom plate, a first fixing frame is fixedly installed on one side of the top of the bottom plate, an unwinding roller is arranged above the front face of the first fixing frame, and a second fixing frame is fixedly installed on the other side of the top of the bottom plate. According to the protective film coating machine, through cooperative use of the bottom plate, the first fixing frame, the unwinding roller, the guide plate, the guide roller, the opening, the processing box, the second fixing frame, the winding roller, the glue coating roller, the glue solution box, the drying machine, an electric telescopic rod, a mounting plate, a liquid level sensor, a fixing rod and a tensioning mechanism, the driving end of the electric telescopic rod can drive the glue solution box to vertically move; the glue solution box moves upwards, so that the liquid level of the glue solution in the glue solution box can be always kept on the same liquid level relative to the processing box and the glue spreading roller, and therefore, the effective adhesion amount of the glue solution on the glue spreading roller can be kept without adjusting the position of the glue spreading roller.

Description

Technical Field

[0001] The utility model relates to the technical field of coating machines, and particularly relates to a protective film coating machine. Background Technique

[0002] Coating machines are mainly used in the surface coating process production of protective films, films, papers, etc., to coat a roll of base materials with a specific functional glue, coating, ink, etc.

[0003] A PE protective film coating machine disclosed in Chinese Patent with the publication number of CN220277420U includes a base plate. At one end of the base plate, first side plates are symmetrically installed. A unwind roller is rotatably arranged between the first side plates. At the other end of the base plate, second side plates are symmetrically installed. A winding roller is rotatably arranged between the second side plates. An installation box is arranged on the base plate between the first side plates and the second side plates, which has the advantages of automatic height adjustment, flexible pressing, efficient glue coating, rapid drying, and simplicity and practicality.

[0004] Aiming at the above related technologies, there are some deficiencies in this device. During the actual use process, as the liquid level of the glue drops, the glue coating roller will drop accordingly, resulting in the distance between the protective film and the drying mechanism getting closer and closer, making the drying effect of the protective film uneven. The drying effect cannot be maintained consistently throughout the glue coating process, affecting the overall quality of the protective film. Therefore, it is necessary to provide a protective film coating machine to solve the above technical problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a protective film coating machine to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A protective film coating machine, which includes:

[0008] A bottom plate, on one side of the top of the bottom plate, a first fixing frame is fixedly installed. Above the front of the first fixing frame, an unwind roller is arranged. On the other side of the top of the bottom plate, a second fixing frame is fixedly installed. Above the front of the second fixing frame, a winding roller is arranged. The top of the bottom plate is fixedly installed with a processing box. Openings are provided on both sides of the processing box. Symmetrically distributed electric telescopic rods are fixedly installed at the bottom inside the processing box. The driving end of the electric telescopic rod is fixedly installed with a glue tank.

[0009] A glue coating roller is rotatably installed above the glue tank inside the processing box. A dryer is fixedly installed on one side of the glue tank inside the processing box. A fixing rod is fixedly installed at the bottom inside the processing box, and the top of the fixing rod penetrates through the glue tank and extends into the inside of the glue tank. An installation plate is fixedly installed at the top of the fixing rod.

[0010] A liquid level sensor is fixedly installed on one side of the bottom of the mounting plate. On the top of the bottom plate, guide plates are fixedly installed on both sides of the processing box. A guide roller is rotatably installed above the front of the guide plate. A tensioning mechanism is arranged on the top of the bottom plate on one side of the first fixing frame.

[0011] Preferably, a switch is fixedly installed on the other side of the bottom of the mounting plate. A trigger rod is fixedly installed at the bottom inside the glue liquid tank directly below the switch. An alarm is arranged on the front of the processing box.

[0012] Preferably, the tensioning mechanism includes support plates, and the number of support plates is two. The two support plates are symmetrically distributed and fixedly installed on the top of the bottom plate on one side of the first fixing frame. A connecting plate is fixedly installed between the two support plates. Chute grooves are respectively opened above the opposite surfaces of the two support plates. Sliding blocks are slidably installed on the two chute grooves. A movable frame is fixedly installed between the two sliding blocks. An adjusting roller is rotatably installed on the movable frame. Symmetrically distributed springs are fixedly installed between the bottom of the movable frame and the top of the connecting plate.

[0013] Preferably, a box door is arranged on the front of the processing box, and the alarm is fixedly installed on the front of the box door.

[0014] Preferably, a sealing sliding sleeve corresponding to the position of the fixed rod is fixedly inserted and installed at the bottom of the glue liquid tank, and the sealing sliding sleeve is slidably connected with the fixed rod.

[0015] Preferably, a visual transparent glass is fixedly inlaid on the front of the box door.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. Through the cooperation of the bottom plate, the first fixing frame, the unwinding roller, the guide plate, the guide roller, the opening, the processing box, the second fixing frame, the winding roller, the glue coating roller, the glue liquid tank, the dryer, the electric telescopic rod, the mounting plate, the liquid level sensor, the fixed rod and the tensioning mechanism, the driving end of the electric telescopic rod can drive the glue liquid tank to move vertically. When the glue liquid tank moves upward, the liquid level of the glue liquid inside the glue liquid tank can always be kept on the same liquid level relative to the processing box and the glue coating roller. In this way, it is not necessary to adjust the position of the glue coating roller to maintain the effective adhesion amount of the glue liquid on the glue coating roller. The fixed position of the glue coating roller ensures that the angular position of the protective film when it is transmitted out of the processing box is always the same, so that the distance between the protective film and the dryer remains unchanged, ensuring the uniformity of the drying of the protective film, maintaining a consistent drying effect, improving the overall quality of the protective film. In addition, through the guiding of the protective film by the guide roller, with the change of the winding thickness of the protective film by the winding roller, it will not affect the change of the distance between the protective film and the dryer, further ensuring the drying effect of the protective film.

[0018] 2. By using the cooperation of a switch, a trigger rod and an alarm, when the liquid content inside the glue liquid tank decreases to a certain amount, the trigger rod will directly contact the switch and trigger the switch. The switch transmits the signal to the controller, and the controller will control the alarm to emit an alarm, reminding the staff to add glue in time to ensure the normal operation of the device. There is no need for the staff to frequently observe the glue liquid amount inside the glue liquid tank with the naked eye, reducing the work intensity of the staff and improving the convenience and work efficiency of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the present utility model.

[0020] Figure 2 It is a front view sectional structural diagram of the present utility model.

[0021] Figure 3 For the present utility model Figure 2 The enlarged structural diagram at position A in it.

[0022] Figure 4 For the present utility model Figure 2 The enlarged structural diagram at position B in it.

[0023] In the figure: 1, bottom plate; 2, first fixing frame; 3, unwinding roller; 4, connecting plate; 5, spring; 6, movable frame; 7, chute; 8, support plate; 9, adjusting roller; 10, guiding plate; 11, guiding roller; 12, opening; 13, processing box; 14, box door; 15, second fixing frame; 16, winding roller; 17, glue coating roller; 18, glue liquid tank; 19, dryer; 20, electric telescopic rod; 21, slider; 22, switch; 23, mounting plate; 24, liquid level sensor; 25, fixed rod; 26, trigger rod; 27, alarm. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0028] Please refer to Figures 1-4 , an embodiment provided by the present utility model:

[0029] A protective film coater, which includes:

[0030] A bottom plate 1, a first fixing frame 2 is fixedly installed on one side of the top of the bottom plate 1, a unwind roller 3 is arranged above the front of the first fixing frame 2, a second fixing frame 15 is fixedly installed on the other side of the top of the bottom plate 1, a winding roller 16 is arranged above the front of the second fixing frame 15, a processing box 13 is fixedly installed on the top of the bottom plate 1, openings 12 are formed on both sides of the processing box 13, symmetrically distributed electric telescopic rods 20 are fixedly installed on the bottom inside the processing box 13, and a glue tank 18 is fixedly installed at the driving end of the electric telescopic rod 20;

[0031] A coating roller 17 is rotatably installed above the glue tank 18 inside the processing box 13, a dryer 19 is fixedly installed on one side of the glue tank 18 inside the processing box 13, a fixing rod 25 is fixedly installed on the bottom inside the processing box 13, and the top of the fixing rod 25 penetrates through the glue tank 18 and extends into the glue tank 18, and a mounting plate 23 is fixedly installed at the top of the fixing rod 25;

[0032] A liquid level sensor 24 is fixedly installed on one side of the bottom of the mounting plate 23, guiding plates 10 are fixedly installed on both sides of the processing box 13 on the top of the bottom plate 1, guiding rollers 11 are rotatably installed above the front of the guiding plates 10, and a tensioning mechanism is arranged on one side of the first fixing frame 2 on the top of the bottom plate 1.

[0033] On the other side of the bottom of the mounting plate 23, a switch 22 is fixedly installed. At the bottom inside the glue tank 18, directly below the switch 22, a trigger rod 26 is fixedly installed. On the front of the processing box 13, an alarm 27 is provided.

[0034] In one embodiment, the tensioning mechanism includes a support plate 8, and the number of support plates 8 is two. The two support plates 8 are symmetrically distributed and fixedly installed on the top of the bottom plate 1 on one side of the first fixed frame 2. A connecting plate 4 is fixedly installed between the two support plates 8. Above the opposite surfaces of the two support plates 8, sliding grooves 7 are respectively formed. On the two sliding grooves 7, sliding blocks 21 are slidably installed. Between the two sliding blocks 21, a movable frame 6 is fixedly installed. An adjusting roller 9 is rotatably installed on the movable frame 6. Between the bottom of the movable frame 6 and the top of the connecting plate 4, symmetrically distributed springs 5 are fixedly installed. Under the elastic action of the springs 5, the protective film is in a taut state during the gluing process, ensuring the stable conveyance of the protective film and the gluing quality.

[0035] In one preferred embodiment, a box door 14 is provided on the front of the processing box 13, and the alarm 27 is fixedly installed on the front of the box door 14. The setting of the box door 14 facilitates the operation inside the processing box 13, such as maintenance and the addition of glue, improving the convenience of use.

[0036] In one embodiment, a sealing sliding sleeve corresponding to the position of the fixed rod 25 is fixedly inserted and installed at the bottom of the glue tank 18, and the sealing sliding sleeve is slidably connected with the fixed rod 25, ensuring the sealing effect at the sliding connection between the fixed rod 25 and the glue tank 18 and avoiding the leakage of glue.

[0037] In one preferred embodiment, a visual transparent glass is fixedly inlaid on the front of the box door 14. The operator can directly observe the working state and process inside the processing box 13 through the visual transparent glass without opening the box door 14, thereby realizing the real-time monitoring of the production process.

[0038] The working principle of the present utility model is as follows: All electrical components mentioned in the text are electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer for control. And for the existing publicly disclosed power connection technology, it will not be elaborated in the text. The parts not involved in this device are the same as the prior art or can be implemented by the prior art. When in use, the protective film is led out from the unwinding roller 3, passes through the upper side of the adjusting roller 9 and the lower side of the guiding roller 11 in sequence, and passes through the opening 12 into the interior of the processing box 13 and through the upper side of the coating roller 17, and finally is led to the winding roller 16. An appropriate amount of glue is pre-loaded in the glue tank 18, and the liquid level of the glue is monitored in real time by the liquid level sensor 24. After all preparations are made, the winding roller 16 starts to wind the protective film. The protective film is conveyed under the guidance of each structure. When the protective film passes through the upper side of the adjusting roller 9 during the conveying process, the spring 5 is in a compressed state at this time. Under the elastic action of the spring 5, it is ensured that the protective film is in a taut state during the gluing process. When the protective film is conveyed on the device, it will drive the coating roller 17 to rotate. The rotation of the coating roller 17 will pass through the interior of the glue tank 18 and contact the glue in the glue tank 18, and carry the glue to coat the protective film. As the liquid level of the glue in the glue tank 18 drops, the liquid level sensor 24 will monitor it and transmit the signal to the controller. The controller will control the electric telescopic rod 20 to start working. The driving end of the electric telescopic rod 20 can drive the glue tank 18 to move vertically. The upward movement of the glue tank 18 can make the liquid level of the glue in the glue tank 18 always remain on a liquid level relative to the processing box 13 and the coating roller 17. In this way, there is no need to adjust the position of the coating roller 17 to maintain the effective adhesion amount of the glue on the coating roller 17. The fixed position of the coating roller 17 ensures that the angular position of the protective film when it is transmitted out from the interior of the processing box 13 is always the same, so that the distance from the dryer 19 remains unchanged, ensuring the uniformity of the drying of the protective film, maintaining a consistent drying effect, improving the overall quality of the protective film. In addition, through the guidance of the guiding roller 11 on the protective film, with the change of the winding thickness of the protective film by the winding roller 16, it will not affect the change of the distance between the protective film and the dryer 19, further ensuring the drying effect of the protective film.

[0039] During the process of adjusting the height of the glue tank 18, the trigger rod 26 moves together with the glue tank 18. The glue tank 18 slides on the outer wall of the fixed rod 25. When the liquid content in the glue tank 18 decreases to a certain amount, the trigger rod 26 will directly contact the switch 22 and trigger the switch 22. The switch 22 transmits the signal to the controller, and the controller will control the alarm 27 to sound an alarm to remind the staff to add glue in time to ensure the normal operation of the device. There is no need for the staff to frequently observe the glue amount in the glue tank 18 with the naked eye, reducing the work intensity of the staff and improving the convenience and work efficiency of the operation.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A protective film coater, characterized in that, It includes: A bottom plate (1), on one side of the top of the bottom plate (1), a first fixing frame (2) is fixedly installed. Above the front of the first fixing frame (2), a unwinding roller (3) is arranged. On the other side of the top of the bottom plate (1), a second fixing frame (15) is fixedly installed. Above the front of the second fixing frame (15), a winding roller (16) is arranged. On the top of the bottom plate (1), a processing box (13) is fixedly installed. Openings (12) are formed on both sides of the processing box (13). Symmetrically distributed electric telescopic rods (20) are fixedly installed at the bottom inside the processing box (13). The driving end of the electric telescopic rod (20) is fixedly installed with a glue tank (18); Inside the processing box (13), above the glue tank (18), a glue coating roller (17) is rotatably installed. Inside the processing box (13), on one side of the glue tank (18), a dryer (19) is fixedly installed. At the bottom inside the processing box (13), a fixing rod (25) is fixedly installed, and the top of the fixing rod (25) penetrates through the glue tank (18) and extends into the inside of the glue tank (18). At the top of the fixing rod (25), a mounting plate (23) is fixedly installed; On one side of the bottom of the mounting plate (23), a liquid level sensor (24) is fixedly installed. On both sides of the top of the bottom plate (1) where the processing box (13) is located, guide plates (10) are fixedly installed. Above the front of the guide plates (10), guide rollers (11) are rotatably installed. On the top of the bottom plate (1), on one side of the first fixing frame (2), a tensioning mechanism is arranged.

2. The protective film coater according to claim 1, wherein: On the other side of the bottom of the mounting plate (23), a switch (22) is fixedly installed. At the bottom inside the glue tank (18), directly below the switch (22), a trigger rod (26) is fixedly installed. On the front of the processing box (13), an alarm (27) is arranged.

3. The protective film coater according to claim 1, wherein: The tensioning mechanism includes support plates (8), and the number of the support plates (8) is two. The two support plates (8) are symmetrically distributed and fixedly installed on the top of the bottom plate (1) on one side of the first fixing frame (2). A connecting plate (4) is fixedly installed between the two support plates (8). On the upper sides of the opposite surfaces of the two support plates (8), chutes (7) are formed. On the two chutes (7), sliders (21) are slidably installed. Between the two sliders (21), a movable frame (6) is fixedly installed. On the movable frame (6), an adjusting roller (9) is rotatably installed. Between the bottom of the movable frame (6) and the top of the connecting plate (4), symmetrically distributed springs (5) are fixedly installed.

4. A protective film coater according to claim 1, wherein: On the front of the processing box (13), a box door (14) is arranged, and the alarm (27) is fixedly installed on the front of the box door (14).

5. A protective film coater according to claim 1, wherein: At the bottom of the glue tank (18), a sealing sliding sleeve corresponding to the position of the fixing rod (25) is fixedly inserted and installed, and the sealing sliding sleeve is slidably connected with the fixing rod (25).

6. The protective film coater according to claim 4, characterized in that: On the front of the box door (14), a visual transparent glass is fixedly inlaid and installed.

Images