A dry composite film coating machine

Abstract

This utility model provides a dry composite film coating machine, relating to the technical field of dry composite film coating machines. The utility model includes a machine base, on which two unwinding rollers are rotatably connected via bearings. Four fixed plates are fixedly connected to the machine base, and two first conveying rollers are rotatably connected to the two fixed plates via bearings. A coating box is fixedly connected to the machine base, and a coating roller is rotatably connected to the coating box via bearings. A take-up roller is rotatably connected to the machine base via bearings. A fourth motor is fixedly connected to the machine base. This utility model solves the problem that when the coating roller rotates in the coating tank, the amount of coating material adhering to its surface is often difficult to control precisely, easily resulting in excessive coating. If excess coating is not removed in time, it will lead to uneven coating thickness, causing localized excessively thick coatings, which not only wastes coating material but also causes problems such as uneven surface and inconsistent gloss in the composite film.

Description

Technical Field

[0001] This utility model relates to the technical field of dry composite film coating machines, and in particular to a dry composite film coating machine. Background Technology

[0002] In industrial fields such as packaging printing and electronic materials, dry composite films are widely used in the manufacturing of food packaging, pharmaceutical packaging, and electronic product packaging due to their excellent barrier properties, mechanical strength, and weather resistance. In the production process of dry composite films, the coating process is one of the key links, which directly affects the quality and performance of the composite film.

[0003] Currently, dry composite film coating machines often use coating rollers for coating operations. The coating rollers transfer the coating material evenly to the substrate surface through dip coating, roller coating, and other methods to form a coating with specific thickness and performance. However, in actual production, as the coating roller rotates in the coating tank, the amount of coating material adhering to its surface is often difficult to control precisely, which can easily lead to excessive coating material. If the excess coating material is not removed in time, it will result in uneven coating thickness and localized excessively thick coatings. This not only wastes coating material but also causes problems such as uneven surface and inconsistent gloss in the composite film. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dry composite film coating machine.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a dry composite film coating machine, comprising a machine base, on which two unwinding rollers are rotatably connected via bearings; four fixed plates are fixedly connected to the machine base, and two first conveying rollers are rotatably connected to the two fixed plates via bearings; a coating box is fixedly connected to the machine base, and a coating roller is rotatably connected to the coating box via bearings; a take-up roller is rotatably connected to the machine base via bearings; a fourth motor is fixedly connected to the machine base, and the take-up roller is driven to rotate by the fourth motor; a drying chamber is fixedly connected to the machine base, and a shaft is used to connect the rollers within the drying chamber. The coating box has two second conveying rollers connected to it. A glue pump is fixedly connected to the coating box, and the output end of the glue pump is connected to the coating box. An exhaust port is opened on the drying box, and a hot air fan is fixedly connected to the drying box. An air duct is fixedly connected to the output end of the hot air fan, and several nozzles are provided on the air duct. A gear is fixedly connected to one end of the first conveying roller, and two gears mesh with each other. A first motor is fixedly connected to the fixed plate, and the first conveying roller is driven to rotate by the first motor. The coating box is provided with a scraping structure, which is mainly composed of a scraper. The scraper is located on one side of the coating box.

[0006] The aforementioned components achieve the following effect: Two rolls of material to be laminated are placed on two unwinding rollers. One type of roll material is passed sequentially between two first conveyor rollers and two second conveyor rollers. Starting the first motor drives one of the first conveyor rollers to rotate. Under the action of two gears, the two first conveyor rollers rotate synchronously in opposite directions, conveying the roll material. The input end of the glue pump is connected to an external coating tank. Starting the glue pump pumps the coating into the coating tank. Rotating the coating roller, as the roll material passes through the coating roller, the coating roller coats the lower surface of the roll material. Then, it enters the drying chamber. Starting the hot air blower, the hot air blower uses several nozzles to initially dry the coating. Then, it passes between the two subsequent first conveyor rollers... The two first conveyor rollers on the coating roll are composite rollers, and another roll of material also passes between the two first conveyor rollers. Under the action of the two first conveyor rollers in the second group, the two rolls of material are composited. Then, the fourth motor is started to drive the take-up roller to rotate and take up the composite roll. During the rotation of the coating roller, the scraper can scrape off the excess coating on the surface of the coating roller, thereby avoiding the situation where the amount of coating on the surface of the coating roller is often difficult to control precisely when it rotates in the coating tank, and the coating is prone to excessive coating. If the excess coating is not removed in time, it will lead to uneven coating thickness and local excessive coating thickness. This not only wastes coating, but also causes problems such as uneven surface and inconsistent gloss of the composite film.

[0007] Preferably, a sliding plate is fixedly connected to the scraper, and the sliding plate is slidably inserted into the coating box.

[0008] The effect achieved by the above components is that the position of the scraper can be adjusted by sliding the sliding plate, thereby adjusting the distance between the scraper and the coating roller, and changing the coating thickness according to different requirements.

[0009] Preferably, a slide rail is fixedly connected to the coating box, and a rectangular plate is slidably connected in the slide rail, with the rectangular plate being fixedly connected to the slide rail.

[0010] The effect achieved by the above components is that the rectangular plate slides within the track, making the movement of the sliding plate more stable.

[0011] Preferably, a screw is rotatably connected to the slide rail via a bearing, the screw is threadedly connected to a rectangular plate, and a second motor is fixedly connected to the slide rail, the screw being driven to rotate by the second motor.

[0012] The effect achieved by the above components is as follows: the output end of the second motor is connected to the screw through a reducer and a coupling. The model of the second motor is 17HS4401. First, the power is turned on to power the second motor control system. Then, the second motor is started to drive the screw to rotate, which in turn drives the rectangular plate to move.

[0013] Preferably, the coating box has grooves on both sides, and a slider is slidably connected in the groove, and the slider is fixedly connected to the scraper.

[0014] The effect achieved by the above components is that the two sliders slide within the groove, making the movement of the scraper more stable.

[0015] Preferably, a stirring rod is rotatably connected to the coating box via a bearing, and a plurality of stirring blades are fixedly connected to the stirring rod.

[0016] The effect achieved by the above components is that rotating the stirring rod can drive several stirring blades to stir the coating and prevent the coating from settling.

[0017] Preferably, both the coating roller and the stirring rod are fixedly connected to sprockets, and a chain is meshed on both sprockets.

[0018] The effect achieved by the above components is that rotating the stirring rod can drive one sprocket to rotate, and under the action of the chain, the two sprockets can rotate synchronously, thereby driving the coating roller to rotate.

[0019] Preferably, a third motor is fixedly connected to the coating box, and the stirring rod is driven to rotate by the third motor.

[0020] The effect achieved by the above components is as follows: the output end of the third motor is connected to the stirring rod through a reducer and a coupling. The model of the third motor is Y2-160m1-8. First, the power is turned on to power the control system of the third motor. Then, the third motor is started to drive the stirring rod to rotate.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this utility model, by setting a scraping structure, two rolls of material to be laminated are placed on two unwinding rollers respectively. One type of roll material is passed sequentially between two first conveying rollers and two second conveying rollers. Starting the first motor drives one of the first conveying rollers to rotate. Under the action of two gears, the two first conveying rollers rotate synchronously in opposite directions to convey the roll material. The input end of the glue pump is connected to the external paint tank. Starting the glue pump pumps the paint into the coating tank. Rotating the coating roller, as the roll material passes through the coating roller, the coating roller can coat the lower surface of the roll material. Then it enters the drying chamber. Starting the hot air fan, the hot air fan can perform preliminary drying of the paint through several air nozzles, and then... The coating roll passes between the two first conveyor rollers (which are composite rollers), and another roll of material also passes between them. Under the action of the two first conveyor rollers in the second group, the two rolls of material are composited. Then, the fourth motor is started to drive the take-up roller to rotate and take up the composite roll. During the rotation of the coating roller, the scraper can scrape off the excess coating on the surface of the coating roller, thus avoiding the situation where the amount of coating on the surface of the coating roller is often difficult to control precisely when it rotates in the coating tank, which can easily lead to excessive coating. If the excess coating is not removed in time, it will lead to uneven coating thickness and local excessive coating thickness. This not only wastes coating but also causes problems such as uneven surface and inconsistent gloss of the composite film. Attached Figure Description

[0022] Figure 1 A three-dimensional structural diagram of a dry composite film coating machine is provided for this utility model;

[0023] Figure 2 This utility model presents a three-dimensional structural schematic diagram of a dry composite film coating machine from another perspective.

[0024] Figure 3 A partial schematic diagram of the scraping structure of a dry composite film coating machine is provided for this utility model.

[0025] Figure 4 This invention provides another schematic diagram of the scraping structure of a dry composite film coating machine.

[0026] Legend: 1. Machine base; 2. Unwinding roller; 3. Fixed plate; 4. First conveyor roller; 5. Gear; 6. First motor; 7. Coating box; 8. Scraper structure; 81. Scraper; 82. Sliding plate; 83. Slide groove; 84. Slider; 85. Slide rail; 86. Rectangular plate; 87. Screw; 88. Second motor; 89. Stirring rod; 810. Stirring blade; 811. Sprocket; 812. Chain; 813. Third motor; 9. Exhaust port; 10. Coating roller; 11. Drying box; 12. Hot air blower; 13. Rewinding roller; 14. Fourth motor; 15. Air duct; 16. Second conveyor roller; 17. Adhesive pump. Detailed Implementation

[0027] Example 1, such as Figures 1 to 3 As shown, a dry composite film coating machine includes a machine base 1, on which two unwinding rollers 2 are rotatably connected via bearings. Four fixed plates 3 are fixedly connected to the machine base 1, and two first conveying rollers 4 are rotatably connected to two fixed plates 3 via bearings. A coating box 7 is fixedly connected to the machine base 1, and a coating roller 10 is rotatably connected to the coating box 7 via bearings. A take-up roller 13 is rotatably connected to the machine base 1 via bearings. A fourth motor 14 is fixedly connected to the machine base 1, driving the take-up roller 13 to rotate. A drying chamber 1 is fixedly connected to the machine base 1. 1. Two second conveyor rollers 16 are rotatably connected in the drying chamber 11 via bearings. A glue pump 17 is fixedly connected to the coating box 7. The output end of the glue pump 17 is connected to the coating box 7. An exhaust port 9 is opened on the drying chamber 11. A hot air blower 12 is fixedly connected to the drying chamber 11. An air duct 15 is fixedly connected to the output end of the hot air blower 12. Several nozzles are provided on the air duct 15. A gear 5 is fixedly connected to one end of the first conveyor roller 4. The two gears 5 mesh with each other. A first motor 6 is fixedly connected to the fixed plate 3. The first conveyor roller 4 is driven to rotate by the first motor 6.

[0028] Reference Figures 2 to 4The coating box 7 is equipped with a scraping structure 8, which mainly consists of a scraper 81. The scraper 81 is located on one side of the coating box 7. Two rolls of material to be laminated are placed on two unwinding rollers 2 respectively. One type of roll material is passed sequentially between two first conveying rollers 4 and two second conveying rollers 16. Starting the first motor 6 drives one of the first conveying rollers 4 to rotate. Under the action of two gears 5, the two first conveying rollers 4 rotate synchronously in opposite directions to convey the roll material. The input end of the glue pump 17 is connected to the external paint tank. The glue pump 17 is started to pump paint into the coating box 7. The coating roller 10 is rotated. When the roll material passes through the coating roller 10, the coating roller 10 can coat the lower surface of the roll material, and then it enters the dry... In the drying chamber 11, the hot air blower 12 is started. The hot air blower 12 can initially dry the coating through several nozzles. Then, the coating passes between the two first conveyor rollers 4. The two first conveyor rollers 4 are composite rollers, and another roll of coating material also passes between the two first conveyor rollers 4. Under the action of the two first conveyor rollers 4 in the second group, the two rolls of coating material are composited. Then, the fourth motor 14 is started to drive the winding roller 13 to rotate and wind up the composite roll of coating material. During the rotation of the coating roller 10, the scraper 81 can scrape off the excess coating material on the surface of the coating roller 10, thereby avoiding the situation where the amount of coating material adhering to the surface of the coating roller 10 is often difficult to control precisely when rotating in the coating tank, which can easily lead to excessive coating material. If excess paint is not removed in time, it will lead to uneven coating thickness, resulting in excessively thick coatings in some areas. This not only wastes paint but also causes problems such as uneven surface and inconsistent gloss in the composite film. A sliding plate 82 is fixedly connected to the scraper 81. The sliding plate 82 is slidably inserted into the coating box 7. The position of the scraper 81 can be adjusted by sliding the sliding plate 82, thereby adjusting the distance between the scraper 81 and the coating roller 10, and changing the coating thickness according to different requirements. A slide rail 85 is fixedly connected to the coating box 7. A rectangular plate 86 is slidably connected in the slide rail 85. The rectangular plate 86 is fixedly connected to the sliding plate 82. The rectangular plate 86 slides within the slide rail 85, making the movement of the sliding plate 82 more stable. A shaft passes through the slide rail 85. A screw 87 is rotatably connected to a rectangular plate 86. A second motor 88 is fixedly connected to a slide rail 85. The screw 87 is driven to rotate by the second motor 88. The output end of the second motor 88 is connected to the screw 87 through a reducer and a coupling. The model of the second motor 88 is 17HS4401. First, the power is turned on to power the control system of the second motor 88. Then, the second motor 88 is started to drive the screw 87 to rotate, which in turn drives the rectangular plate 86 to move. Slide grooves 83 are opened on both sides of the coating box 7. Slider 84 is slidably connected in the slide grooves 83. The slider 84 is fixedly connected to the scraper 81. The two sliders 84 slide in the slide grooves 83 to limit their movement, making the movement of the scraper 81 more stable.

[0029] Reference Figures 2 to 4A stirring rod 89 is rotatably connected to the coating box 7 via bearings. Several stirring blades 810 are fixedly connected to the stirring rod 89. Rotating the stirring rod 89 can drive the stirring blades 810 to stir the coating and prevent the coating from settling. Sprockets 811 are fixedly connected to both the coating roller 10 and the stirring rod 89. A chain 812 is meshed on both sprockets 811. Rotating the stirring rod 89 can drive one sprocket 811 to rotate. Under the action of the chain 812, the two sprockets 811 can rotate synchronously, thereby driving the coating roller 10 to rotate. A third motor 813 is fixedly connected to the coating box 7. The stirring rod 89 is driven to rotate by the third motor 813. The output end of the third motor 813 is connected to the stirring rod 89 through a reducer and a coupling. The model of the third motor 813 is Y2-160m1-8. First, the power is turned on to power the control system of the third motor 813. Then, the third motor 813 is started to drive the stirring rod 89 to rotate.

[0030] Working principle: Two rolls of material to be laminated are placed on two unwinding rollers 2. One type of roll material is passed sequentially between two first conveying rollers 4 and two second conveying rollers 16. Starting the first motor 6 drives one of the first conveying rollers 4 to rotate. Under the action of two gears 5, the two first conveying rollers 4 rotate synchronously in opposite directions to convey the roll material. The input end of the glue pump 17 is connected to the external paint tank. Starting the glue pump 17 pumps paint into the coating tank 7. Rotating the coating roller 10, the roll material passes through the coating roller 10, which coats the lower surface of the roll material. Then, it enters the drying chamber 11. Starting the hot air blower 12, the hot air blower 12 can spray paint through several nozzles. The material undergoes preliminary drying and then passes between two subsequent first conveyor rollers 4. These two first conveyor rollers 4 are composite rollers, and another roll of material also passes between them. Under the action of the two first conveyor rollers 4 in the second group, the two rolls of material are composited. Then, the fourth motor 14 is started to drive the winding roller 13 to rotate and wind up the composite roll of material. During the rotation of the coating roller 10, the scraper 81 can scrape off excess coating on the surface of the coating roller 10, thereby avoiding the situation where the amount of coating adhering to the surface of the coating roller 10 is often difficult to control precisely when it rotates in the coating tank, and excessive coating can easily occur. If the excess coating is not removed in time, it will lead to coating problems. Uneven fabric thickness results in excessively thick coatings in certain areas, wasting paint and causing uneven surfaces and inconsistent gloss in the composite film. The position of the scraper 81 can be adjusted by sliding the sliding plate 82, thereby adjusting the distance between the scraper 81 and the coating roller 10, and changing the coating thickness according to different requirements. The rectangular plate 86 slides within the guide rail 85, making the movement of the sliding plate 82 more stable. The output end of the second motor 88 is connected to the screw 87 via a reducer and coupling. The model of the second motor 88 is 17HS4401. First, the power is turned on to power the control system of the second motor 88. Then, starting the second motor 88 will drive the screw 87 to rotate, thereby driving... The rectangular plate 86 moves, and the two sliders 84 slide in the groove 83, making the movement of the scraper 81 more stable. Rotating the stirring rod 89 can drive several stirring blades 810 to stir the coating and prevent the coating from settling. Rotating the stirring rod 89 can drive a sprocket 811 to rotate. Under the action of the chain 812, the two sprockets 811 can rotate synchronously, thereby driving the coating roller 10 to rotate. The output end of the third motor 813 is connected to the stirring rod 89 through a reducer and a coupling. The model of the third motor 813 is Y2-160m1-8. First, the power is turned on to power the control system of the third motor 813, and then the third motor 813 is started to drive the stirring rod 89 to rotate.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A dry composite film coating machine, comprising a machine base (1), characterized in that: Two unwinding rollers (2) are rotatably connected to the machine base (1) via bearings. Four fixed plates (3) are fixedly connected to the machine base (1). Two first conveying rollers (4) are rotatably connected to the two fixed plates (3) via bearings. A coating box (7) is fixedly connected to the machine base (1). A coating roller (10) is rotatably connected to the coating box (7) via bearings. A take-up roller (13) is rotatably connected to the machine base (1) via bearings. A fourth motor (14) is fixedly connected to the machine base (1). The take-up roller (13) is driven to rotate by the fourth motor (14). A drying box (11) is fixedly connected to the machine base (1). Two second conveying rollers (16) are rotatably connected to the drying box (11) via bearings. The coating box (7) is fixedly connected to... There is a glue pump (17), the output end of which is connected to the coating box (7). The drying box (11) is provided with an exhaust port (9). A hot air blower (12) is fixedly connected to the drying box (11). A duct (15) is fixedly connected to the output end of the hot air blower (12). Several nozzles are provided on the duct (15). A gear (5) is fixedly connected to one end of the first conveying roller (4). The two gears (5) mesh with each other. A first motor (6) is fixedly connected to the fixed plate (3). The first conveying roller (4) is driven to rotate by the first motor (6). A scraping structure (8) is provided on the coating box (7). The scraping structure (8) is mainly composed of a scraper (81). The scraper (81) is located on one side of the coating box (7).

2. The dry composite film coating machine according to claim 1, characterized in that: A sliding plate (82) is fixedly connected to the scraper (81), and the sliding plate (82) is slidably inserted into the coating box (7).

3. The dry composite film coating machine according to claim 2, characterized in that: A slide rail (85) is fixedly connected to the coating box (7), and a rectangular plate (86) is slidably connected in the slide rail (85). The rectangular plate (86) is fixedly connected to the sliding plate (82).

4. The dry composite film coating machine according to claim 3, characterized in that: A screw (87) is rotatably connected to the slide rail (85) via a bearing. The screw (87) is threadedly connected to the rectangular plate (86). A second motor (88) is fixedly connected to the slide rail (85). The screw (87) is driven to rotate by the second motor (88).

5. The dry composite film coating machine according to claim 4, characterized in that: The coating box (7) has grooves (83) on both sides, and a slider (84) is slidably connected in the groove (83). The slider (84) is fixedly connected to the scraper (81).

6. The dry composite film coating machine according to claim 5, characterized in that: The coating box (7) is rotatably connected to a stirring rod (89) via a bearing, and a number of stirring blades (810) are fixedly connected to the stirring rod (89).

7. The dry composite film coating machine according to claim 6, characterized in that: Both the coating roller (10) and the stirring rod (89) are fixedly connected to sprockets (811), and the two sprockets (811) are connected to a chain (812) through meshing.

8. The dry composite film coating machine according to claim 7, characterized in that: A third motor (813) is fixedly connected to the coating box (7), and the stirring rod (89) is driven to rotate by the third motor (813).

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