Forward and reverse coating mechanism for aluminized paper

Abstract

The utility model relates to the technical field of aluminized paper production, in particular to an aluminized paper positive and negative coating mechanism which comprises a base, supporting frames are welded to the front side and the rear side of the top of the base, a first motor is connected to the inner wall of one side of each supporting frame in a clamped mode, and an upper coating roller is connected to the output end of each first motor in an inserted mode. One end of the upper coating roller is sleeved with a transmission mechanism, the inner wall of the transmission mechanism is sleeved with a lower coating roller, the two ends of the lower coating roller are rotationally connected to the opposite sides of the telescopic supporting plates, a coating mechanism is arranged in the middle of the top of the supporting frame, and an unwinding mechanism is welded to one side of the top of the base; a winding mechanism is welded to the other side of the top of the base. According to the improved coating mechanism, by controlling the telescopic supporting plate, the distance between the coating rollers can be adjusted to adapt to paper of different thicknesses, the coating mechanism and the coating groove can coat the surfaces of the upper coating roller and the lower coating roller with coating, the paper penetrates through the gap between the upper coating roller and the lower coating roller, and double-face coating can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminized paper production, in particular to a front and back coating mechanism for aluminized paper. Background Technique

[0002] Aluminized paper is a metallized packaging material. It is covered with a thin layer of aluminum on its surface to increase its unique metallic texture and enhance its protective performance, such as improving the barrier effect against moisture, oxygen, light, and chemicals. At the same time, it also makes the product appearance more attractive. During the processing of aluminized paper, it is necessary to ensure that the aluminum layer is uniform and firm, and the coating quality is directly related to the appearance and performance of the final product. When using aluminized paper for packaging, attention should be paid to environmental protection, and the shedding of the aluminum layer should be avoided as much as possible to ensure sustainable production.

[0003] The coating mechanism is a key component in the field of paper processing. It is mainly used to apply one or more layers of specific coatings to the paper in order to change its surface characteristics or endow it with special properties. The purposes of coating can include improving the smoothness, gloss, barrier property, opacity, printing suitability, etc. of the paper to meet the requirements of different application scenarios, such as packaging, labeling, graphic printing, etc.

[0004] Chinese Patent with the publication number of CN209873452U discloses a coating device for aluminized paper production. A coating device for aluminized paper production includes a first support plate. A bottom plate is fixedly installed on the side surface of the first support plate. One end of the bottom plate is fixedly installed with a second support plate. A first liquid storage box is arranged on the upper surface of the bottom plate. A first coating roller is rotatably connected inside the first liquid storage box. However, this device has the following disadvantages: 1. In the coating mechanism of the device, the coating is transferred and contaminated between different coating rollers. For the rollers contaminated with the coating, the coating on their surfaces is unevenly attached, which is likely to cause the uniformity during the coating of the paper. 2. The distance between the coating rollers in the coating mechanism of the device is fixed and unchanged. Therefore, in actual use, it is difficult to adapt to the coating operations of papers with different thicknesses. Content of the Utility Model

[0005] The purpose of the utility model is to provide a front and back coating mechanism for aluminized paper, so as to solve the problem that the distance between the coating rollers in the existing coating mechanism is fixed and unchanged and it is difficult to adapt to the coating operations of papers with different thicknesses as mentioned in the above background technique.

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

[0007] Aluminum-coated paper front and back coating mechanism, including a base, on both front and back sides of the top of the base are welded support frames, on one inner wall of the support frame is snap-connected a first motor, the output end of the first motor is inserted with an upper coating roller, one end of the upper coating roller is sleeved with a transmission mechanism, the inner wall of the transmission mechanism is sleeved with a lower coating roller, both ends of the lower coating roller are rotatably connected to the opposite sides of the telescopic support plates, in the middle of the top of the support frame is provided a coating mechanism, on one side of the top of the base is welded a unwinding mechanism, on the other side of the top of the base is welded a winding mechanism, and between the support frame and the winding mechanism on the top of the base is provided a drying box.

[0008] Further preferably, the transmission mechanism is composed of a driving main wheel, a driving driven wheel and a belt. Among them, the driving main wheel is sleeved on the outer wall of the end of the upper coating roller, the driving driven wheel is sleeved on the outer wall of the end of the lower coating roller, and the belt is sleeved on the outer walls of the wheels of the driving main wheel and the driving driven wheel.

[0009] Further preferably, the telescopic support plate is composed of a support sleeve plate, a telescopic plate and an electric telescopic rod. Among them, the electric telescopic rod is screwed on the left and right sides of the bottom wall of the support sleeve plate, the telescopic plate is arranged at the driving end of the electric telescopic rod, and the support sleeve plate and the telescopic plate form a sliding connection.

[0010] Further preferably, the coating mechanism is composed of a material storage box, a discharge pipe, a solenoid valve, an aggregate box and a coating brush. Among them, the material storage box is arranged in the middle of the top of the support frame, the discharge pipe is inserted into the material storage box and the aggregate box and vertically penetrates through the inside of the support frame, the solenoid valve is arranged on the outer wall of the discharge pipe, and the coating brush is arranged at the bottom of the aggregate box.

[0011] Further preferably, a coating tank is arranged directly below the lower coating roller on the top of the base.

[0012] Further preferably, the drying box is composed of a fan, an electric heating pipe and a through groove. Among them, the fan is snap-connected in the middle of the top wall of the drying box, the electric heating pipe is installed on the front and back inner walls of the drying box, and the through groove is opened on the left and right outer walls of the drying box.

[0013] Further preferably, the unwinding mechanism is composed of a second motor, a fixing plate A and an unwinding roller. Among them, the fixing plate A is welded on one side of the top of the base, both ends of the unwinding roller are rotatably connected to the opposite sides of the fixing plate A, the second motor is inserted into one end of the unwinding roller, the winding mechanism is composed of a third motor, a fixing plate B and a winding roller. Among them, the fixing plate B is welded on the other side of the top of the base, both ends of the winding roller are rotatably connected to the opposite sides of the fixing plate B, and the third motor is inserted into one end of the winding roller.

[0014] The beneficial effects of the present utility model:

[0015] In the present utility model, an operator can, according to the actual situation, start an electric telescopic rod provided on the bottom wall of the support sleeve plate through an external controller, so that the telescopic plate provided at the driving end can move vertically along the inner wall of the support sleeve plate, thereby driving the upper coating roller to lift and lower synchronously, and further realizing flexible adjustment of the distance between the upper coating roller and the lower coating roller, so as to adapt to papers of different thicknesses, ensure that the paper will not be folded or stretched and deformed during the coating process, and improve the coating effect and the quality of paper processing.

[0016] In the present utility model, when the electromagnetic valve is opened, the coating inside the storage box flows downward through the discharge pipe into the inside of the aggregate box, and infiltrates the coating brush through the pores between the aggregate box and the coating brush. While the upper coating roller is rotating, the coating brush will evenly apply the coating it has contaminated onto the surface of the upper coating roller. While the lower coating roller is driven to rotate, all parts of the surface of the lower coating roller will come into contact with the coating in the coating tank provided directly below it, so as to evenly contaminate the coating. Then, when the paper passes between the upper coating roller and the lower coating roller, the upper and lower surfaces of the paper can be evenly coated with the coating on the surfaces of the upper coating roller and the lower coating roller at the same time, thereby realizing double-sided coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0018] Figure 2 is a schematic structure diagram of the winding mechanism of the present utility model;

[0019] Figure 3 is a schematic structure diagram of the telescopic support plate of the present utility model;

[0020] Figure 4 is a schematic structure diagram of the drying box of the present utility model;

[0021] Figure 5 is a schematic structure diagram of the coating mechanism of the present utility model.

[0022] In the figure: 1, base; 101, coating tank; 2, support frame; 3, first motor; 4, upper coating roller; 5, transmission mechanism; 501, driving main wheel; 502, driving driven wheel; 503, belt; 6, lower coating roller; 7, telescopic support plate; 701, support sleeve plate; 702, telescopic plate; 703, electric telescopic rod; 8, coating mechanism; 801, storage box; 802, discharge pipe; 803, electromagnetic valve; 804, aggregate box; 805, coating brush; 9, unwinding mechanism; 901, second motor; 902, fixing plate A; 903, unwinding roller; 10, winding mechanism; 1001, third motor; 1002, fixing plate B; 1003, winding roller; 11, drying box; 1101, fan; 1102, electric heating tube; 1103, through slot. Specific embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments with reference to the accompanying drawings.

[0024] Refer to Figures 1 to 5 , the front and back coating mechanism of aluminized paper, including a base 1, support frames 2 are welded on the front and back sides of the top of the base 1, a first motor 3 is clamped on the inner wall of one side of the support frame 2, an upper coating roller 4 is inserted into the output end of the first motor 3, a transmission mechanism 5 is sleeved at one end of the upper coating roller 4, a lower coating roller 6 is sleeved on the inner wall of the transmission mechanism 5, and both ends of the lower coating roller 6 are rotatably connected to the opposite sides of the telescopic support plate 7. A coating mechanism 8 is arranged in the middle of the top of the support frame 2. A unwinding mechanism 9 is welded on one side of the top of the base 1, a winding mechanism 10 is welded on the other side of the top of the base 1, and a drying oven 11 is arranged between the support frame 2 and the winding mechanism 10 on the top of the base 1.

[0025] In this embodiment, as Figure 3 shown, the transmission mechanism 5 is composed of a driving main wheel 501, a driving driven wheel 502 and a belt 503. Among them, the driving main wheel 501 is sleeved on the outer wall of the end of the upper coating roller 4, the driving driven wheel 502 is sleeved on the outer wall of the end of the lower coating roller 6, and the belt 503 is sleeved on the outer walls of the driving main wheel 501 and the driving driven wheel 502. It should be noted that when the operator starts the unwinding mechanism 9 and the winding mechanism 10 at the same time, it will drive the paper to pass through the middle gap between the upper coating roller 4 and the lower coating roller 6. At the same time, the operator can start the first motor 3 to drive the upper coating roller 4 inserted therewith to start rotating, and the driving main wheel 501 sleeved on the outer wall of the end of the upper coating roller 4 will rotate together. During this period, the driving main wheel 501 drives the driving driven wheel 502 located below and the lower coating roller 6 sleeved thereon to rotate synchronously through the belt 503 sleeved on its outer wall, so that the upper coating roller 4 and the lower coating roller 6 can simultaneously contact the upper and lower surfaces of the paper, and coat the coatings attached to their respective surfaces on the upper and lower surfaces of the paper to achieve the coating operation. During this process, the transmission mechanism 5 can ensure that the upper coating roller 4 and the lower coating roller 6 rotate synchronously, so as to ensure that when they coat the paper, the coating speeds of the upper and lower surfaces can be kept consistent, avoiding uneven coating. At the same time, because the upper coating roller 4 and the lower coating roller 6 are synchronously driven by the same transmission mechanism 5, the overall coating efficiency is improved, and the resources and space required for complex independent drives are reduced.

[0026] In this embodiment, as Figure 3As shown in the figure, the telescopic support plate 7 is composed of a support sleeve plate 701, a telescopic plate 702, and an electric telescopic rod 703. The electric telescopic rod 703 is screwed on the left and right sides of the bottom wall of the support sleeve plate 701. The telescopic plate 702 is arranged at the driving end of the electric telescopic rod 703. The support sleeve plate 701 and the telescopic plate 702 form a sliding connection. It should be noted that in actual use, the specifications of the paper to be coated will vary, and its thickness will also change accordingly. In order to enable papers of different thicknesses to pass through the gap between the upper coating roller 4 and the lower coating roller 6 for coating operations, in the present utility model, a telescopic support plate 7 is provided. The telescopic support plate 7 is divided into two plate bodies, namely a support sleeve plate 701 and a telescopic plate 702. The upper coating roller 4 and the lower coating roller 6 are respectively rotatably connected to the telescopic plate 702 and the support sleeve plate 701. In specific use, the operator can, according to the actual situation, start the electric telescopic rod 703 provided on the bottom wall of the support sleeve plate 701 through an external controller, so that it can push the telescopic plate 702 arranged at the driving end to move vertically along the inner wall of the support sleeve plate 701, thereby driving the upper coating roller 4 to move up and down synchronously, and then realizing the flexible adjustment of the distance between the upper coating roller 4 and the lower coating roller 6, so as to adapt to papers of different thicknesses and ensure that the paper will not be folded or stretched and deformed during the coating process, improving the coating effect and the quality of paper processing.

[0027] In this embodiment, as Figure 1 and Figure 5As shown, the coating mechanism 8 is composed of a material storage box 801, a discharge pipe 802, a solenoid valve 803, an aggregate box 804, and a coating brush 805. The material storage box 801 is arranged in the middle of the top of the support frame 2. The discharge pipe 802 is inserted into the material storage box 801 and the aggregate box 804 and vertically penetrates through the inside of the support frame 2. The solenoid valve 803 is arranged on the outer wall of the discharge pipe 802. The coating brush 805 is arranged at the bottom of the aggregate box 804. It should be noted that before the operator needs to perform a coating operation on the paper, it is necessary to first adhere the coating on the surfaces of the upper coating roller 4 and the lower coating roller 6. For the adhesion operation of the upper coating roller 4, it is necessary to first open the solenoid valve 803, so that the coating inside the material storage box 801 flows downward through the discharge pipe 802 into the inside of the aggregate box 804, and infiltrates the coating brush 805 through the pores between the aggregate box 804 and the coating brush 805. Because the bottom end of the coating brush 805 is attached to the surface of the upper coating roller 4, when the upper coating roller 4 rotates, the coating brush 805 will evenly apply the coating it has contaminated to the surface of the upper coating roller 4, so as to realize the coating operation on the upper surface of the paper, and can also ensure the uniform distribution of the coating on the upper surface of the paper. At the same time, the use of the solenoid valve 803 enables the operator to precisely control the release of the coating, ensuring that the coating is applied to the paper in an appropriate amount, avoiding waste of the coating. The entire coating mechanism 8 simplifies the coating adjustment process, enabling the operator to quickly respond to different coating requirements, including changing the coating type or adjusting the coating amount.

[0028] In this embodiment, as Figure 1 and Figure 3 shown, a coating tank 101 is provided directly below the lower coating roller 6 at the top of the base 1. It should be noted that before the operator needs to perform a coating operation on both the upper and lower surfaces of the paper, it is necessary to first adhere the coating on the surfaces of the upper coating roller 4 and the lower coating roller 6. The adhesion operation of the lower coating roller 6 is achieved by providing a coating tank 101 directly below the lower coating roller 6 at the top of the base 1. The inner wall of the coating tank 101 is filled with the coating, and the surface of the lower coating roller 6 is immersed in the coating inside the coating tank 101. While the lower coating roller 6 is driven to rotate, all parts of the surface of the lower coating roller 6 will come into contact with the coating in the coating tank 101, so as to evenly contaminate the coating. When it performs a coating operation on the paper with the upper coating roller 4, it can evenly apply the coating adhered to its surface to the lower surface of the paper, so as to realize the synchronous and continuous coating operation on both the upper and lower surfaces of the paper, thus eliminating the step of secondary coating, saving time, and improving the coating efficiency at the same time.

[0029] In this embodiment, as Figure 4As shown in the figure, the drying box 11 is composed of a fan 1101, an electric heating tube 1102, and a through groove 1103. Among them, the fan 1101 is snap-connected to the middle of the top wall of the drying box 11, the electric heating tube 1102 is installed on the inner walls of the front and rear sides of the drying box 11, and the through groove 1103 is opened on the outer walls of the left and right sides of the drying box 11. It should be noted that after the coating operation of the paper passing through the upper coating roller 4 and the lower coating roller 6, it will continue to be driven forward by the winding mechanism 10 to the drying box 11. At this time, the paper will pass through the through groove 1103 opened on one side of the drying box 11 and enter its interior. At the same time, the operator can turn on the fan 1101 and the electric heating tube 1102 provided inside the drying box 11 at the same time. During this period, the electric heating tube 1102 generates heat energy through current heating, quickly increasing the temperature inside the drying box 11. The fan 1101 drives the hot air inside the box to circulate through the rotating fan blades, ensuring that the heat can be evenly distributed in each area of the drying box 11, so that the solvent and moisture on the surface of the paper can quickly evaporate, and then an efficient drying process can be achieved. The dried paper will be driven by the winding mechanism 10, pass through the through groove 1103 opened on the other side of the drying box 11, and complete the final winding.

[0030] In this embodiment, as Figure 2As shown in the figure, the unwinding mechanism 9 is composed of a second motor 901, a fixing plate A902 and an unwinding roller 903. The fixing plate A902 is welded to one side of the top of the base 1. The two ends of the unwinding roller 903 are rotatably connected to the opposite sides of the fixing plate A902. The second motor 901 is inserted into one end of the unwinding roller 903. The winding mechanism 10 is composed of a third motor 1001, a fixing plate B1002 and a winding roller 1003. The fixing plate B1002 is welded to the other side of the top of the base 1. The two ends of the winding roller 1003 are rotatably connected to the opposite sides of the fixing plate B1002. The third motor 1001 is inserted into one end of the winding roller 1003. It should be noted that the operator needs to fix the head and tail ends of the paper to the unwinding roller 903 and the winding roller 1003 respectively, and then start the second motor 901 and the third motor 1001 at the same time, so as to drive the unwinding roller 903 and the winding roller 1003 inserted with them to rotate synchronously, so that the paper can be driven to move from the unwinding mechanism 9 to the winding mechanism 10, and during this period, it will successively pass through the double-sided coating operation of the upper coating roller 4 and the lower coating roller 6 and the heating and drying operation of the drying oven 11. Then, the paper that has completed the above process will finally be wound on the outer wall of the winding roller 1003. The setting of the unwinding mechanism 9 to the winding mechanism 10 can quickly and continuously process the coating operation of long-roll paper, improve production efficiency, and at the same time drive the unwinding roller 903 and the winding roller 1003 to rotate synchronously through the second motor 901 and the third motor 1001, which can accurately control the tension of the paper, ensure the stable and uniform movement of the paper during the coating process, avoid wrinkles or breaks in the paper during movement, and the automatic unwinding and winding operations reduce labor costs and reduce the labor intensity of the operator.

[0031] The usage method and advantages of the present utility model: For the positive and negative coating mechanism of aluminized paper, when in use, the working process is as follows:

[0032] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown in the figure, first, the operator can start the electric telescopic rod 703 according to the actual thickness of the paper through the external controller, push the telescopic plate 702 to move vertically, so as to adjust the distance between the upper coating roller 4 and the lower coating roller 6, so that the paper can pass through smoothly. Then, the head and tail ends of the paper are fixed at the unwinding roller 903 and the winding roller 1003 respectively. Then, the second motor 901 and the third motor 1001 are started at the same time, so as to drive the unwinding roller 903 and the winding roller 1003 inserted into them to rotate synchronously, so that the paper can be driven to move from the unwinding mechanism 9 to the winding mechanism 10. At the same time, the solenoid valve 803 is opened, so that the coating in the storage box 801 flows downward through the discharge pipe 802 into the inside of the aggregate box 804, and infiltrates the coating brush 805 through the pores between the aggregate box 804 and the coating brush 805. The first motor 3 is started to drive the upper coating roller 4 inserted into it to start rotating. At the same time, through the movement transmission of the transmission mechanism 5, the lower coating roller 6 is driven to rotate synchronously. At this time, the coating brush 805 will evenly apply the coating it has contaminated on the surface of the upper coating roller 4, and the lower coating roller 6 will contact the coating in the coating tank 101, so as to evenly contaminate the coating. Then, the second motor 901 and the third motor 1001 are started at the same time, so as to drive the unwinding roller 903 and the winding roller 1003 inserted into them to rotate synchronously, so that the paper can be driven to move from the unwinding mechanism 9 to the winding mechanism 10. During the period when the paper passes through the upper coating roller 4 and the lower coating roller 6, the coatings on the surfaces of the upper coating roller 4 and the lower coating roller 6 will be evenly applied on the upper and lower surfaces of the paper at the same time, so as to achieve double-sided coating. Then, the paper will be driven to pass through the through groove 1103 opened on one side of the drying box 11. At this time, the electric heating tube 1102 generates heat energy through current heating, quickly increasing the temperature inside the drying box 11, and the fan 1101 drives the hot air inside the box to circulate and distribute in each area of the drying box 11 through the rotating fan blades, so as to perform efficient drying treatment on the surface of the paper. The dried paper will be driven by the winding mechanism 10 to pass through the through groove 1103 opened on the other side of the drying box 11 and come out, and finally be wound on the surface of the winding roller 1003.

Claims

1. A front and back coating mechanism for aluminum-coated paper, comprising a base (1), characterized in that: A support frame (2) is welded to the front and rear sides of the top of the base (1); a first motor (3) is clamped to the inner wall of one side of the support frame (2); an upper coating roller (4) is plugged into the output end of the first motor (3); a transmission mechanism (5) is sleeved to one end of the upper coating roller (4); a lower coating roller (6) is sleeved to the inner wall of the transmission mechanism (5); two ends of the lower coating roller (6) are rotatably connected to opposite sides of a telescopic support plate (7); a coating mechanism (8) is provided in the middle of the top of the support frame (2); a reeling mechanism (9) is welded to one side of the top of the base (1); a reeling mechanism (10) is welded to the other side of the top of the base (1); and a drying box (11) is provided at the top of the base (1) between the support frame (2) and the reeling mechanism (10).

2. The front and back coating mechanism of aluminized paper according to claim 1, characterized in that: The transmission mechanism (5) is composed of a transmission main wheel (501), a transmission slave wheel (502) and a belt (503), wherein the transmission main wheel (501) is sleeved on the outer wall of the end of the upper coating roller (4), the transmission slave wheel (502) is sleeved on the outer wall of the end of the lower coating roller (6), and the belt (503) is sleeved on the outer walls of the wheel bodies of the transmission main wheel (501) and the transmission slave wheel (502).

3. The front and back coating mechanism of aluminized paper according to claim 1, characterized in that: The telescopic support plate (7) is composed of a support sleeve (701), a telescopic plate (702) and an electric telescopic rod (703), wherein the electric telescopic rod (703) is screwed to the left and right sides of the bottom wall of the support sleeve (701), the telescopic plate (702) is arranged at the driving end of the electric telescopic rod (703), and the support sleeve (701) and the telescopic plate (702) are slidably connected.

4. The front and back coating mechanism of aluminized paper according to claim 1, characterized in that: The coating mechanism (8) is composed of a material storage box (801), a material discharge pipe (802), a solenoid valve (803), a material collection box (804) and a coating brush (805), wherein the material storage box (801) is arranged at the middle of the top of the support frame (2), the material discharge pipe (802) is plugged into the material storage box (801) and the material collection box (804) and vertically penetrates the interior of the support frame (2), the solenoid valve (803) is arranged on the outer wall of the material discharge pipe (802), and the coating brush (805) is arranged at the bottom of the material collection box (804).

5. The front and back coating mechanism of aluminized paper according to claim 1, characterized in that: A coating groove (101) is provided at the top of the base (1) directly below the lower coating roller (6).

6. The front and back coating mechanism of aluminized paper according to claim 1, characterized in that: The drying box (11) is composed of a fan (1101), an electric heating tube (1102) and a through slot (1103), wherein the fan (1101) is snap-connected to the middle of the top wall of the drying box (11), the electric heating tube (1102) is installed on the front and rear inner walls of the drying box (11), and the through slot (1103) is opened on the left and right outer walls of the drying box (11).

7. The front and back coating mechanism of aluminized paper according to claim 1, characterized in that: The unwinding mechanism (9) is composed of a second motor (901), a fixed plate A (902) and an unwinding roller (903), wherein the fixed plate A (902) is welded to one side of the top of the base (1), two ends of the unwinding roller (903) are rotatably connected to the opposite side of the fixed plate A (902), and the second motor (901) is plugged into one end of the unwinding roller (903). The winding mechanism (10) is composed of a third motor (1001), a fixed plate B (1002) and a winding roller (1003), wherein the fixed plate B (1002) is welded to the other side of the top of the base (1), two ends of the winding roller (1003) are rotatably connected to the opposite side of the fixed plate B (1002), and the third motor (1001) is plugged into one end of the winding roller (1003).

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