Alumite coating unit capable of uniformly coating adhesive layer

Abstract

The alumite coating unit comprises a machine frame and further comprises a trowelling mechanism arranged on the machine frame, the trowelling mechanism comprises a lifting driving mechanism, a trowelling roller, a rotating shaft, a connecting rod, a connecting arm and a variable frequency motor, the trowelling roller (8) is located between a glue pressing roller (4) and a paper outlet guide roller (5), the connecting rod (10) drives the connecting arm (11) to rotate with the rotating shaft (9) as the circle center, and the variable frequency motor drives the connecting arm (11) to rotate with the rotating shaft (9) as the circle center. And the connecting rod (10) can limit the connecting arm (11) to move along a preset track, so that the trowelling roller (8) at the other end of the connecting arm (11) is driven to move along the preset track. The trowelling mechanism can adjust the wrap angle of the trowelling roller and the aluminum foil, further adjust the contact area of a glue layer and the trowelling roller so as to adjust the trowelling force, the trowelling roller conducts secondary smearing on the surface of an aluminum foil coating, the coating on the surface of the aluminum foil is further trowelling, the coating is made to be uniform, the phenomena that the surface of the aluminum foil floats and the coating is uneven are eliminated, and the quality of the aluminum foil is improved. And the product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the device of general surface coating liquid, concretely relates to a kind of glue layer coating uniform electrochemical aluminum coating unit. BACKGROUND

[0002] Electrochemical aluminum stamping foil is a functional film coating stamping material, generally by BOPET film layer, release layer, color layer, aluminized layer and back adhesive layer constitute.It is through the effect of heat pressing to transfer each coating on BOPET film to the surface of stamping substrate, and the color of stamping layer is bright and beautiful, and the metal texture is strong, which forms a sharp contrast with the stamping substrate, highlights the visual effect of stamping layer propaganda, decoration, gives people the enjoyment of beauty and strong visual impact.The production of electrochemical aluminum stamping foil, in addition to aluminized layer using vacuum aluminizing process, release layer, color layer, back adhesive layer all use coating production process.Coating is transferred to BOPET film by gravure coating roll, then enters oven, and solvent in coating liquid is blown out under the action of high temperature and exhaust.

[0003] The existing electrochemical aluminum coating equipment in the coating process of back adhesive layer, due to the addition of accelerator and other fillers in the glue, the leveling property is not as good as the color layer, and the coating is easy to cause uneven coating phenomenon, so that the surface of coating is uneven, and the thickness is uneven, the surface is directly mottled, which affects the product quality.

[0004] Currently there are different leveling devices, for example, the invention name is: aluminum foil coating machine leveling roller mechanism, 201120448239.7, the utility model includes frame, frame is equipped with net line stick and rubber roller for coating, net line stick and rubber roller are installed with guide roller above, one side of guide roller is equipped with leveling roller, leveling roller is connected on frame, and leveling roller is connected with frequency conversion motor.Aluminum foil coating machine leveling roller mechanism can carry out secondary coating to the surface of aluminum foil coating through leveling roller.But when the viscosity of glue is large, it needs large mechanical force to push the glue flat and evenly coat on the protective film, but the above scheme cannot adjust the angle of leveling roller, so it cannot change the force of glue layer. SUMMARY

[0005] In order to overcome the deficiencies of the above background art, the utility model provides a kind of electrochemical aluminum coating unit of glue layer coating uniformity, which can be twice coated, so that the coating is uniform.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a kind of electrochemical aluminum coating unit of glue layer coating uniformity, including frame 1, guide paper roller, glue tank 2, anilox roller 3, glue pressure roller 4 and paper outlet guide roller 5 installed on frame 1, and leveling mechanism is arranged on frame 1, and the wrap angle of leveling roller 8 and aluminum foil can be adjusted according to the needs of production.

[0007] The leveling mechanism comprises a lifting driving mechanism, a support frame 7, a leveling roller 8, a rotating shaft 9, a connecting rod 10, a connecting arm 11 and a variable frequency motor 12, and the support frame 7 is fixed on the rack 1.

[0008] The leveling roller 8 is located between the rubber pressing roller 4 and the paper outlet guide roller 5, and the leveling roller 8, the rotating shaft 9 and the rubber pressing roller 4 are arranged in parallel.

[0009] The lifting driving mechanism is a cylinder group composed of two cylinders 6, the cylinders 6 are respectively fixed on the racks 1 on both sides, the lower end of the cylinder 6 is provided with the connecting rod 10, the other end of the connecting rod 10 is provided with a shaft hole, the rotating shaft 9 is installed in the shaft hole, one end of the rotating shaft 9 is connected with one end of the connecting arm 11, the rotating shaft 9 penetrates through the connecting arm 11 and the connecting rod 10 at the same time, one end of the rotating shaft 9 is rotatably supported on the support frame 7, the other end of the rotating shaft 9 is rotatably supported on the rack 1, and the rotating shaft 9 is fixed with the connecting arm 11 and rotatably connected with the connecting rod 10, and the other end of the connecting arm 11 is rotatably connected with the leveling roller 8; the connecting rod 10 drives the connecting arm 11 to rotate with the rotating shaft 9 as the center, the connecting rod 10 can limit the connecting arm 11 to move along a preset track, so as to drive the leveling roller 8 at the other end of the connecting arm 11 to move along the preset track.

[0010] One end of the leveling roller 8 penetrates through the connecting arm 11, and the leveling roller 8 is driven to rotate by the variable frequency motor 12 through a synchronous belt mechanism, the leveling roller 8 is adjusted in angle, cooperates with the paper outlet guide roller 5 to form a certain pressure on the aluminum foil after being coated with glue, and the glue on the surface of the aluminum foil is leveled.

[0011] The length of the roller body of the leveling roller 8 is greater than the length of the roller body of the rubber pressing roller 4.

[0012] The leveling mechanism can adjust the wrap angle of the leveling roller 8 and the aluminum foil, further adjust the contact area of the glue layer and the leveling roller 8, adjust the leveling strength, the leveling roller 8 performs secondary coating on the surface of the aluminum foil coating, further levels the coating on the surface of the aluminum foil, makes the coating uniform, eliminates the phenomenon that the aluminum foil surface is mottled and the coating is uneven, and improves the product quality. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a structural schematic view of the utility model.

[0014] Fig. 2 It is a structural schematic view of the leveling mechanism of the utility model.

[0015] In the figure: rack 1, glue groove 2, screen roller 3, rubber pressing roller 4, paper outlet guide roller 5, cylinder 6, support frame 7, leveling roller 8, rotating shaft 9, connecting rod 10, connecting arm 11 and variable frequency motor 12. DETAILED DESCRIPTION

[0016] The utility model will be further described below in combination with the drawings and examples. Example 1

[0017] As Figs. 1-2 shown in the embodiment, the present application discloses a kind of even adhesive coating aluminum foil coating unit, including rack 1, paper guide roll, glue tank 2, anilox roll 3, glue pressure roller 4 and paper guide roller 5 are installed on rack 1, it further includes setting on rack 1, the angle of wrapping of wiping mechanism can be adjusted according to the need of production wiping roller 8 and aluminum foil.

[0018] The wiping mechanism includes lifting drive mechanism, support frame 7, wiping roller 8, shaft 9, connecting rod 10, connecting arm 11, variable frequency motor 12, the support frame 7 is fixed on rack 1.The wiping roller 8 is located between glue pressure roller 4 and paper guide roller 5, and wiping roller 8, shaft 9 and glue pressure roller 4 are arranged in parallel, and the length of the roll body of wiping roller 8 is greater than the length of the roll body of glue pressure roller 4.

[0019] The lifting drive mechanism is a cylinder group composed of two cylinders 6, the cylinder 6 is fixed on the rack 1 on both sides respectively, the lower end of cylinder 6 is provided with connecting rod 10, the other end of connecting rod 10 is provided with shaft hole, shaft 9 is installed in the shaft hole, one end of shaft 9 is connected with connecting arm 11 through connecting arm 11, one end of shaft 9 is rotatably supported on support frame 7 after passing through connecting arm 11 and connecting rod 10 at the same time, the other end is supported on rack 1, and shaft 9 is fixed with connecting arm 11, and connecting rod 10 is rotatably connected with connecting arm 11, and the other end of connecting arm 11 is rotatably connected with wiping roller 8; connecting rod 10 drives connecting arm 11 to rotate with shaft 9 as center, connecting rod 10 can limit the movement of connecting arm 11 along the preset track, so as to drive the wiping roller 8 at the other end of connecting arm 11 to move along the preset track.

[0020] One end of the wiping roller 8 penetrates the connecting arm 11, and is driven to rotate by the variable frequency motor 12 through the synchronous belt mechanism at the same time, the wiping roller 8 is adjusted in angle, and cooperates with the paper guide roller 5 to form a certain pressure on the aluminum foil after coating glue, and the glue on the surface of the aluminum foil is wiped.

[0021] When in use, the aluminum foil enters the coating unit through the guide roller, passes through the anilox roll 3 and the glue pressure roller 4 to be coated with glue, and the angle of wrapping of the wiping roller 8 and the aluminum foil is adjusted by the wiping mechanism after coating, specifically: the cylinder is lowered or raised, drives one end of the connecting rod 10 to be lowered or raised, the connecting arm 11 connected with the connecting rod 10 rotates with the shaft 9 as center to drive the wiping roller 8 at the other end of the connecting arm 11 to move up or down, so as to adjust the angle of wrapping of the wiping roller 8 and the aluminum foil. The glue solution is evenly wiped by the wiping roller 8, and enters the oven upwardly through the paper guide roller 5. The wiping roller 8 is connected with the variable frequency motor 12 by the synchronous belt mechanism, and the variable frequency motor can control the rotating speed of the wiping roller 8, so that it is consistent with the advancing speed of the aluminum foil.

Claims

1. An electroplated aluminum coating unit with uniform adhesive coating, comprising a frame (1), a guide roller, an adhesive trough (2), an anilox roller (3), an adhesive pressure roller (4), and a paper output guide roller (5) mounted on the frame (1), characterized in that: It also includes a smoothing mechanism set on the frame (1), which can adjust the wrap angle between the smoothing roller (8) and the aluminum foil according to production needs; The smoothing mechanism includes a lifting drive mechanism, a support frame (7), a smoothing roller (8), a rotating shaft (9), a connecting rod (10), a connecting arm (11), and a variable frequency motor (12). The support frame (7) is fixed on the frame (1). The smoothing roller (8) is located between the glue pressing roller (4) and the paper output guide roller (5), and the smoothing roller (8), the rotating shaft (9) and the glue pressing roller (4) are arranged in parallel. The lifting drive mechanism is a cylinder group consisting of two cylinders (6). The cylinders (6) are fixed on the frame (1) on both sides respectively. The lower end of the cylinder (6) is provided with a connecting rod (10). The other end of the connecting rod (10) is provided with a shaft hole. A rotating shaft (9) is installed in the shaft hole. The rotating shaft (9) is connected to one end of the connecting arm (11). The two ends of the rotating shaft (9) pass through the connecting arm (11) and the connecting rod (10) respectively. One end is rotatably supported on the support frame (7), and the other end is supported on the frame (1). The rotating shaft (9) is fixed to the connecting arm (11) and rotatably connected to the connecting rod (10). At the same time, the other end of the connecting arm (11) is rotatably connected to the smoothing roller (8). The connecting rod (10) drives the connecting arm (11) to rotate around the rotating shaft (9). The connecting rod (10) can restrict the connecting arm (11) to move along a preset trajectory, thereby driving the smoothing roller (8) at the other end of the connecting arm (11) to move along the preset trajectory. The smoothing roller (8) passes through the connecting arm (11) at one end and is driven to rotate by the variable frequency motor (12) through the synchronous belt mechanism.

2. The electroplated aluminum coating unit with uniform adhesive layer coating according to claim 1, characterized in that: The length of the smoothing roller (8) is greater than the length of the rubber pressing roller (4).

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