A white card paper coating amount adjusting device

Abstract

The utility model relates to the technical field of packaging and printing production equipment discloses a kind of white cardboard coating amount adjusting devices, including coating frame, guide assembly, unwinding roll, winding roll, lifting plate, adjusting assembly, two hollow shafts, upper coating roller, lower coating roller, driving assembly, transmission assembly and drying assembly;The winding roll and unwinding roll are rotatably installed at the front side of coating frame, the guide assembly is arranged at the front side of coating frame, the coating frame is provided with guide port, the lifting plate is arranged in guide port, the adjusting assembly is arranged at the back of coating frame and is connected with lifting plate, two hollow shafts are rotatably installed on coating frame and lifting plate respectively, and the upper coating roller and lower coating roller are fixedly installed on corresponding hollow shafts respectively.The utility model has the following advantages and effects: coating amount can be accurately adjusted, and coating efficiency and quality can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging and printing production equipment technology, and in particular to a white cardboard coating amount adjustment device. Background Technology

[0002] In the modern packaging and printing industry, white cardboard is widely used in the production of high-end paper boxes, greeting cards, hang tags, and other products due to its excellent stiffness, whiteness, and printability. During the production of white cardboard, the coating process is a key step in improving its surface properties and meeting diverse application requirements, while precise control of the coating amount is the core element in ensuring coating quality.

[0003] Currently, common white cardboard coating equipment on the market has certain limitations in terms of coating amount adjustment. Traditional coating amount adjustment methods often rely on manual adjustment of the spacing and pressure between coating rollers based on human experience. This method is not only inefficient, but also prone to unstable coating amount due to human error, resulting in uneven coating and inconsistent thickness on the surface of the coated white cardboard, which seriously affects product quality and production efficiency. In addition, existing coating equipment cannot meet the requirement of simultaneous and precise coating of both sides of white cardboard.

[0004] Therefore, this utility model proposes a white cardboard coating amount adjustment device to solve the above problems.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a white cardboard coating amount adjustment device, which can accurately adjust the coating amount and effectively improve coating efficiency and quality.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a white cardboard coating amount adjustment device, including a coating frame, a guide assembly, an unwinding roller, a rewinding roller, a lifting plate, an adjustment assembly, two hollow shafts, an upper coating roller, a lower coating roller, a drive assembly, a transmission assembly, and a drying assembly;

[0008] The take-up roller and unwind roller are rotatably mounted on the front side of the coating frame. The guide assembly is located on the front side of the coating frame. The coating frame has a guide opening. The lifting plate is located inside the guide opening. The adjustment assembly is located on the rear side of the coating frame and connected to the lifting plate. Two hollow shafts are rotatably mounted on the coating frame and the lifting plate, respectively. The upper coating roller and the lower coating roller are fixedly mounted on the corresponding hollow shafts, respectively. The drive assembly is located on the rear side of the coating frame and connected to the upper hollow shaft. The transmission assembly is located on the rear side of the coating frame and connected to the two hollow shafts. The drying assembly is located on the coating frame. A white cardboard is fixed and wound around the unwind roller and the take-up roller, passing through the upper coating roller and the lower coating roller. The white cardboard passes through the drying assembly and is connected to the guide assembly.

[0009] A further feature of this invention is that the drive assembly includes a servo motor, a drive gear, and a driven gear. The servo motor is fixedly mounted on the rear side of the coating rack. The drive gear and the driven gear are respectively fixedly sleeved on the output shaft of the servo motor and the hollow shaft above it. The drive gear meshes with the driven gear.

[0010] By adopting the above technical solution, driving force can be provided for the hollow shaft above.

[0011] The present invention is further configured as follows: the transmission assembly includes a strip plate one, a strip plate two, two linkage gears one, two linkage gears two, a fixed pin, and a rotating pin. A fixed pin is rotatably mounted on the rear side of the coating rack. A strip plate two is radially rotatably mounted on the fixed pin. A rotating pin is radially rotatably mounted on the side of the strip plate two away from the fixed pin. The rotating pin is located below the fixed pin. A strip plate one is radially rotatably mounted on the rotating pin. Linkage gears two are fixedly sleeved on both the fixed pin and the rotating pin. The two linkage gears two mesh with each other. A hollow shaft below is radially rotatably mounted on the side of the strip plate one away from the rotating pin. Linkage gears one are fixedly sleeved on both hollow shafts. The two linkage gears two mesh with their corresponding linkage gears one.

[0012] By adopting the above technical solution, the upper hollow shaft can drive the lower hollow shaft to rotate synchronously in the opposite direction when the upper hollow shaft rotates, while ensuring that a relatively stable transmission state is maintained during the adjustment of the lifting plate.

[0013] A further feature of this invention is that the adjustment assembly includes a servo electric cylinder and a pressure sensor. The servo electric cylinder is located on the rear side of the coating rack, and the pressure sensor is fixedly installed at the working end of the servo electric cylinder. The top side of the pressure sensor is fixedly connected to the bottom side of the lifting plate.

[0014] By adopting the above technical solution, the height of the lifting plate can be adjusted as needed, and the clamping force of the upper and lower coating rollers on the white cardboard can be monitored in real time, thereby effectively adjusting the coating amount of the white cardboard.

[0015] A further feature of this invention is that the guiding assembly includes four guiding rollers, with four guiding rollers rotatably mounted on the front side of the coating frame. The four guiding rollers are in contact with the top and bottom sides of the white cardboard that is being passed through, and the four guiding rollers are located on both sides of the hollow shaft.

[0016] By adopting the above technical solution, the white cardboard passing through can be supported and guided.

[0017] A further feature of this invention is that the drying assembly includes two hollow plates, a hot and cold air fan, and a telescopic hose. The hot and cold air fan and the telescopic hose are fixedly installed on the coating rack. The bottom end of the telescopic hose is connected to the air outlet of the hot and cold air fan. Two hollow plates are fixedly installed on the front side of the coating rack. Multiple air outlets are opened on the side of the two hollow plates that are close to each other. The end of the telescopic hose away from the hot and cold air fan is connected to the two hollow plates, and the path of the white cardboard passes through the space between the two hollow plates.

[0018] By adopting the above technical solution, a drying operation can be provided for coated white cardboard.

[0019] A further feature of this invention is that the width of the air outlet decreases from left to right, and the air outlet is inclined downstream in the direction of white cardboard transport.

[0020] By adopting the above technical solution, the blowing speed can be increased from left to right, thereby enabling more effective drying of white cardboard.

[0021] A further feature of this invention is that a support block is fixedly installed on the rear side of the coating rack, and a servo electric cylinder is fixedly installed on the support block.

[0022] By adopting the above technical solution, stable support can be provided for the servo electric cylinder.

[0023] A further feature of this invention is that a guide rod is fixedly installed inside the guide opening, which is parallel to the plane containing the two hollow shafts, and the guide rod is connected to the lifting plate through a sliding bearing.

[0024] By adopting the above technical solution, a stable guide can be provided for the lifting platform, while greatly reducing the friction force experienced by the lifting platform during lifting and adjustment.

[0025] A further feature of this invention is that the number of guide rods is two.

[0026] By adopting the above technical solution, it is possible to avoid contact between the lifting plate and the inner wall of the guide port, thereby further reducing the friction during the adjustment process of the lifting plate.

[0027] The beneficial effects of this utility model are:

[0028] The adjustable components, in conjunction with the lifting plate, allow for the adjustment of the gap between the upper and lower coating rollers. This not only effectively accommodates white cardboard of varying thicknesses but also enables real-time monitoring and precise control of the pressure exerted by the upper and lower coating rollers on the passing white cardboard, thus achieving precise adjustment of the coating amount. Simultaneously, the drive component provides stable drive to the upper coating roller and, with the cooperation of the transmission component, controls the lower coating roller to rotate synchronously in opposite directions with the upper coating roller, enabling simultaneous coating of both sides of the white cardboard. The guide component provides support and guidance for the white cardboard, while the drying component dries the coated white cardboard. This effectively improves the accuracy and efficiency of coating amount adjustment, reduces errors that may occur with manual adjustment, and results in a more uniform and stable coating effect, thereby enhancing the product quality of the white cardboard and meeting diverse production needs. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a three-dimensional structural diagram of a white cardboard coating amount adjustment device proposed in this utility model;

[0031] Figure 2 for Figure 1 A structural diagram from another perspective;

[0032] Figure 3 for Figure 1 The main view;

[0033] Figure 4 This is a partial three-dimensional structural schematic diagram of the present invention;

[0034] Figure 5 for Figure 4 A structural diagram from another perspective;

[0035] Figure 6 This is a schematic diagram of the drying component proposed in this utility model.

[0036] In the diagram, 1 is the coating rack; 11 is the guide roller; 2 is the unwinding roller; 3 is the winding roller; 4 is the lifting plate; 41 is the guide rod; 42 is the servo cylinder; 43 is the support block; 44 is the pressure sensor; 5 is the hollow shaft; 51 is the upper coating roller; 52 is the lower coating roller; 6 is the first linkage gear; 61 is the first strip plate; 62 is the second strip plate; 63 is the second linkage gear; 64 is the servo motor; 65 is the drive gear; 66 is the driven gear; 7 is the hollow plate; 71 is the telescopic hose; and 72 is the hot and cold air blower. Detailed Implementation

[0037] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0038] Reference Figure 1-6 A white cardboard coating amount adjustment device includes a coating frame 1, a guide assembly, an unwinding roller 2, a winding roller 3, a lifting plate 4, two hollow shafts 5, an upper coating roller 51, and a lower coating roller 52.

[0039] Both the take-up roller 3 and the unwind roller 2 are rotatably mounted on the front side of the coating frame 1. Four guide rollers 11 are rotatably mounted on the front side of the coating frame 1. The four guide rollers 11 are in contact with the top and bottom sides of the white cardboard that is being passed through, and the four guide rollers 11 are located on both sides of the hollow shaft 5, which can provide support and guidance for the white cardboard that is being passed through. The coating frame 1 has a guide opening, and the lifting plate 4 is set in the guide opening. Two hollow shafts 5 are rotatably mounted on the coating frame 1 and the lifting plate 4, respectively. The upper coating roller 51 and the lower coating roller 52 are fixedly mounted on the corresponding hollow shafts 5, respectively. The same white cardboard that passes through the upper coating roller 51 and the lower coating roller 52 is fixedly wound on the unwind roller 2 and the take-up roller 3.

[0040] A servo cylinder 42 is installed on the rear side of the coating rack 1. A pressure sensor 44 is fixedly installed on the working end of the servo cylinder 42, and the top side of the pressure sensor 44 is fixedly connected to the bottom side of the lifting plate 4. The height of the lifting plate 4 can be adjusted as needed, and the force of the upper coating roller 51 and the lower coating roller 52 on the white cardboard can be monitored in real time, so as to effectively adjust the coating amount of the white cardboard.

[0041] A servo motor 64 is fixedly installed on the rear side of the coating rack 1. A drive gear 65 and a driven gear 66 are respectively fixedly sleeved on the output shaft of the servo motor 64 and the hollow shaft 5 above. The drive gear 65 and the driven gear 66 mesh with each other and can provide driving force to the hollow shaft 5 above.

[0042] A fixing pin is rotatably mounted on the rear side of the coating rack 1. A strip plate 62 is radially rotatably mounted on the fixing pin. A rotating pin is radially rotatably mounted on the side of the strip plate 62 away from the rotating pin. A strip plate 61 is radially rotatably mounted on the rotating pin. A linkage gear 63 is fixedly sleeved on both the fixing pin and the rotating pin. The two linkage gears 63 mesh with each other. The side of the strip plate 61 away from the rotating pin is radially rotatably mounted on the lower hollow shaft 5. A linkage gear 6 is fixedly sleeved on both hollow shafts 5. The two linkage gears 63 mesh with the corresponding linkage gear 6, which can drive the lower hollow shaft 5 to rotate synchronously in the opposite direction when the upper hollow shaft 5 rotates. At the same time, it can ensure that a relatively stable transmission state is maintained during the adjustment of the lifting plate 4.

[0043] A hot and cold air fan 72 and a flexible hose 71 are fixedly installed on the coating rack 1. The bottom end of the flexible hose 71 is connected to the air outlet of the hot and cold air fan 72. Two hollow plates 7 are fixedly installed on the front side of the coating rack 1. Multiple air outlets are opened on the side of the two hollow plates 7 that are close to each other. The end of the flexible hose 71 away from the hot and cold air fan 72 is connected to the two hollow plates 7. The path of the white cardboard passes through the two hollow plates 7, which can provide a drying operation for the coated white cardboard.

[0044] In order to increase the air velocity from left to right and thus achieve more effective drying of the white cardboard, the width of the air outlet decreases from left to right and the air outlet is inclined downstream in the white cardboard conveying direction.

[0045] Specifically, in order to provide stable support for the servo electric cylinder 42, a support block 43 is fixedly installed on the rear side of the coating rack 1, and the servo electric cylinder 42 is fixedly installed on the support block 43.

[0046] Specifically, in order to provide stable guidance for the lifting plate 4, and to greatly reduce the friction force experienced by the lifting plate 4 during lifting and adjustment, and to prevent the lifting plate 4 from contacting the inner wall of the guide port during lifting and adjustment, thereby further reducing the friction force during the adjustment of the lifting plate 4, a guide rod 41 is fixedly installed inside the guide port, which is parallel to the plane where the two hollow shafts 5 are located. The guide rod 41 is connected to the lifting plate 4 through a sliding bearing, and there are two guide rods 41.

[0047] It is worth noting that when the lifting plate 4 is adjusted to the lowest point, the included angle between the first strip plate 61 and the second strip plate 62 must still be less than 180°.

[0048] The circuits, electronic components, and module mechanisms involved all employ existing technologies, which can be fully implemented by those skilled in the art, and need no further explanation. The content protected by this application does not involve any improvement to the software, circuits, or methods.

[0049] Working principle: The unwinding roller 2 and the take-up roller 3 drive the white cardboard through four guide rollers 11 for guidance and transmission, passing through the gap between the upper coating roller 51 and the lower coating roller 52. The servo cylinder 42 drives the lifting plate 4 through the pressure sensor 44 to adjust the distance between the two rollers, changing the clamping force to coarsely adjust the coating amount. The pressure sensor feeds back data to the control system in real time to achieve closed-loop precise control. At the same time, the servo motor 64 drives the upper coating roller 51 to rotate through the drive gear 65 and the driven gear 66. With the cooperation of the linkage gear 1 6, the strip plate 1 61, the strip plate 2 62, the rotating pin and the fixed pin, and the linkage gear 1 6 and the linkage gear 2 63, the lower coating roller 52 rotates synchronously in the opposite direction to ensure uniform coating. After coating, the hot and cold air fan 72 delivers airflow to the hollow plate 7 through the telescopic hose 71. The inclined air outlet dries the white cardboard in the direction of airflow and avoids interfering with the coating layer. The guide rod 41 cooperates with the sliding bearing to reduce the friction of the lifting plate 4, and the support block 43 ensures the stability of the servo cylinder, realizing precise adjustment of the coating amount and efficient production.

[0050] The above provides a detailed description of the white cardboard coating amount adjustment device provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A white cardboard coating amount adjustment device, characterized in that, It includes a coating rack (1), a guide assembly, an unwinding roller (2), a rewinding roller (3), a lifting plate (4), an adjustment assembly, two hollow shafts (5), an upper coating roller (51), a lower coating roller (52), a drive assembly, a transmission assembly, and a drying assembly; The take-up roller (3) and unwind roller (2) are rotatably mounted on the front side of the coating rack (1). The guide assembly is located on the front side of the coating rack (1). The coating rack (1) has a guide opening. The lifting plate (4) is located inside the guide opening. The adjustment assembly is located on the rear side of the coating rack (1) and connected to the lifting plate (4). Two hollow shafts (5) are rotatably mounted on the coating rack (1) and the lifting plate (4) respectively. The upper coating roller (51) and the lower coating roller (52) are fixedly mounted on the coating rack (1) and the lifting plate (4) respectively. Mounted on the corresponding hollow shaft (5), the drive assembly is located on the rear side of the coating frame (1) and connected to the upper hollow shaft (5), the transmission assembly is located on the rear side of the coating frame (1) and connected to the two hollow shafts (5), the drying assembly is located on the coating frame (1), and the unwinding roller (2) and the winding roller (3) are fixed and wound with the same white cardboard that passes through the upper coating roller (51) and the lower coating roller (52), and the white cardboard passes through the drying assembly and is connected to the guide assembly.

2. The white cardboard coating amount adjustment device according to claim 1, characterized in that: The drive assembly includes a servo motor (64), a drive gear (65), and a driven gear (66). The servo motor (64) is fixedly installed on the rear side of the coating rack (1). The drive gear (65) and the driven gear (66) are respectively fixedly sleeved on the output shaft of the servo motor (64) and the hollow shaft (5) above it. The drive gear (65) meshes with the driven gear (66).

3. The white cardboard coating amount adjustment device according to claim 1, characterized in that: The transmission assembly includes a strip plate one (61), a strip plate two (62), two linkage gears one (6), two linkage gears two (63), a fixed pin, and a rotating pin. A fixed pin is rotatably mounted on the rear side of the coating rack (1). A strip plate two (62) is radially rotatably mounted on the fixed pin. A rotating pin is radially rotatably mounted on the side of the strip plate two (62) away from the fixed pin. The rotating pin is located below the fixed pin. A strip plate one (61) is radially rotatably mounted on the rotating pin. Linkage gears two (63) are fixedly sleeved on both the fixed pin and the rotating pin. The two linkage gears two (63) mesh with each other. A hollow shaft (5) is radially rotatably mounted on the side of the strip plate one (61) away from the rotating pin. Linkage gears one (6) are fixedly sleeved on both hollow shafts (5). The two linkage gears two (63) mesh with the corresponding linkage gears one (6).

4. The white cardboard coating amount adjustment device according to claim 1, characterized in that: The adjustment assembly includes a servo cylinder (42) and a pressure sensor (44). The servo cylinder (42) is provided on the rear side of the coating rack (1). The pressure sensor (44) is fixedly installed on the working end of the servo cylinder (42), and the top side of the pressure sensor (44) is fixedly connected to the bottom side of the lifting plate (4).

5. The white cardboard coating amount adjustment device according to claim 1, characterized in that: The guiding assembly includes four guide rollers (11). Four guide rollers (11) are rotatably mounted on the front side of the coating frame (1). The four guide rollers (11) are in contact with the top and bottom sides of the white cardboard that is being passed through, and the four guide rollers (11) are located on both sides of the hollow shaft (5).

6. The white cardboard coating amount adjustment device according to claim 1, characterized in that: The drying assembly includes two hollow plates (7), a hot and cold air fan (72), and a telescopic hose (71). The hot and cold air fan (72) and the telescopic hose (71) are fixedly installed on the coating rack (1). The bottom end of the telescopic hose (71) is connected to the air outlet of the hot and cold air fan (72). Two hollow plates (7) are fixedly installed on the front side of the coating rack (1). Multiple air outlets are opened on the side of the two hollow plates (7) that are close to each other. The end of the telescopic hose (71) away from the hot and cold air fan (72) is connected to the two hollow plates (7), and the path of the white cardboard passes through the two hollow plates (7).

7. The white cardboard coating amount adjustment device according to claim 6, characterized in that: The width of the air outlet decreases from left to right, and the air outlet is inclined downstream in the direction of white cardboard transport.

8. The white cardboard coating amount adjustment device according to claim 4, characterized in that: A support block (43) is fixedly installed on the rear side of the coating rack (1), and a servo electric cylinder (42) is fixedly installed on the support block (43).

9. The white cardboard coating amount adjustment device according to claim 1, characterized in that: A guide rod (41) is fixedly installed inside the guide opening, which is parallel to the plane where the two hollow shafts (5) are located. The guide rod (41) is connected to the lifting plate (4) through a sliding bearing.

10. The white cardboard coating amount adjustment device according to claim 9, characterized in that: The number of guide rods (41) is two.

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