Metallized film anti-damage coating cold drum and coating method

Abstract

The invention discloses a metallized film anti-damage coating cold drum and a coating method, the metallized film anti-damage coating cold drum comprises a cold drum body and an oil box, one side of the cold drum body is provided with an oil supply mechanism, the oil supply mechanism is internally provided with an oil control mechanism used for controlling the oil outlet amount, the outer side of the oil box is provided with a driving mechanism used for driving the cold drum body to rotate, and the oil box is internally provided with an oil outlet mechanism used for controlling the oil outlet amount. The driving mechanism is in transmission connection with the oil control mechanism through the transmission mechanism; the oil supply mechanism comprises an oil storage tank fixed to the oil box, an oil outlet tank is installed on the side, close to the oil box, of the oil storage tank, and a plurality of oil outlet holes are formed in the oil outlet tank. The oil control mechanism can extrude the push-pull plate once every time the oil control mechanism rotates by a circle, the piston plate can be pushed to move up and down in the oil outlet tank by matching of the first elastic part, oil is automatically added to the oil box, an oil film is formed on the surface of the cold drum body, and in the metallized film evaporation process, a metal layer cannot be attached to the cold drum body; the base film is prevented from being scalded.

Description

Technical Field

[0001] The invention belongs to the technical field of metallized film coating equipment, and in particular relates to a metallized film damage-resistant coating cold drum and a coating method. Background Art

[0002] During the high vacuum evaporation process of the metallized film, a layer of zinc-aluminum composite metal will be formed on the edges of both sides of the cooling main drum of the coating machine. As the evaporation time increases, the metal layer will become thicker and thicker. This will cause a short circuit between the bias voltage applied to the cooling main drum of the coating machine and the film, affecting the adhesion of the polypropylene film to the main drum of the coating machine, causing the surface temperature of the metallized film to be too high during evaporation, resulting in burns on the base film. To this end, we propose a metallized film damage-resistant coating cold drum and coating method. Summary of the invention

[0003] The present invention aims at solving the problems in the prior art and proposes the following technical solutions:

[0004] A metallized film damage-resistant coating cold drum comprises a cold drum body and an oil box, an oil supply mechanism is arranged on one side of the cold drum body, an oil control mechanism for controlling the oil output is installed inside the oil supply mechanism, a driving mechanism for driving the cold drum body to rotate is installed outside the oil box, and the driving mechanism is connected to the oil control mechanism through a transmission mechanism;

[0005] The oil supply mechanism comprises an oil storage tank fixed on the oil box, an oil outlet box is installed on the side of the oil storage tank close to the oil box, the oil outlet box is provided with a plurality of oil outlet holes, and a piston plate is slidably installed inside the oil outlet box, a push-pull plate penetrating the side wall of the oil outlet box is fixedly connected to the bottom of the piston plate, and an elastic member 1 is installed between the push-pull plate and the oil box;

[0006] The oil control mechanism squeezes the push-pull plate once every rotation, and through the cooperation of the elastic member 1, it pushes the piston plate to move up and down inside the oil outlet tank one back and forth, automatically adding oil to the oil box, so that an oil film is formed on the surface of the cold drum body, so that the metal layer cannot adhere to the cold drum body during the metallized film evaporation process, thereby avoiding burns to the base film.

[0007] As a preferred embodiment of the above technical solution, the oil control mechanism includes an internal threaded barrel, the internal threaded barrel is threadedly connected to a threaded rod, one end of the threaded rod away from the internal threaded barrel is fixedly connected to a knob, the side of the knob away from the threaded rod is rotatably connected to a connecting block, and the connecting block is fixedly connected to the outer side of the internal threaded barrel with an elastic member 2.

[0008] As a preferred embodiment of the above technical solution, the driving mechanism includes a mounting seat fixed on the outside of the oil box, the mounting seat is equipped with a motor, the output end of the motor is fixedly connected to a driving shaft, and the end of the driving shaft away from the motor is fixedly connected to the cold drum body through a cold drum fixing frame.

[0009] As a preferred embodiment of the above technical solution, the drive shaft is installed with a bearing frame, and the rear end of the bearing frame is fixedly connected to the mounting seat.

[0010] As a preferred embodiment of the above technical solution, the transmission mechanism includes a transmission shaft rotatably mounted on the outer wall of the oil storage tank, the internal threaded tube is fixedly sleeved in the inner ring of the transmission shaft, a threaded hole is opened on one side of the transmission shaft, a fastening bolt is sleeved in the inner ring of the threaded hole, and one end of the fastening bolt is in contact with the internal threaded tube.

[0011] As a preferred embodiment of the above technical solution, the outer rings of the transmission shaft and the driving shaft are both fixedly sleeved with transmission wheels, and the two transmission wheels are connected by belt transmission.

[0012] A coating method for a metallized film damage-resistant coating cold drum comprises the following steps:

[0013] S1. Lubrication:

[0014] When the driving mechanism drives the cold drum body to rotate, the oil control mechanism is driven to rotate through the transmission mechanism. The oil control mechanism squeezes the push-pull plate once every rotation. The piston plate is pushed up and down inside the oil outlet tank through the cooperation of the elastic member 1, and the oil box is automatically added with oil. When the cold drum body rotates to transfer the base film, an oil film is formed on its surface, so that the metal layer cannot adhere to the cold drum body during the metallized film evaporation process, thereby avoiding burns to the base film.

[0015] S2. Oil quantity adjustment:

[0016] Turning the knob drives the threaded rod to rotate, and the distance from the connecting block to the end of the internal threaded barrel can be adjusted through the threaded cooperation between the threaded rod and the internal threaded barrel, thereby changing the curvature of the elastic member 2. When the curvature of the elastic member 2 is smaller, the distance of the push-pull plate will be shorter, so that the number of oil outlet holes exposed above the piston plate will be smaller, resulting in less oil output. When the curvature of the elastic member 2 is larger, the oil output will be more.

[0017] The beneficial effects of the present invention are:

[0018] 1. The oil control mechanism of the present invention squeezes the push-pull plate once every rotation, and the piston plate is pushed up and down inside the oil outlet tank by the cooperation of the elastic member 1, and the oil box is automatically added with oil, so that an oil film is formed on the surface of the cold drum body, so that the metal layer cannot adhere to the cold drum body during the metallized film evaporation process, thereby avoiding burns to the base film;

[0019] 2. The present invention controls the moving distance of the push-pull plate by changing the curvature of the second elastic member, thereby controlling the amount of oil output, and adjusting the outflowing oil amount according to specific circumstances at any time to avoid waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The structure diagram of the metallized film damage-resistant coating cold drum in the embodiment is shown;

[0021] Figure 2 What is shown is a structural schematic diagram of the oil supply mechanism in the embodiment;

[0022] Figure 3 It is shown that Figure 1 A schematic diagram of the structure enlargement at point A;

[0023] Figure 4 Shown is a schematic structural diagram of the oil control mechanism in the embodiment.

[0024] Description of reference numerals:

[0025] 10. Cold drum body; 20. Oil box; 30. Driving mechanism; 31. Mounting seat; 32. Motor; 33. Driving shaft; 34. Bearing frame; 35. Cold drum fixing frame; 40. Oil supply mechanism; 41. Oil storage tank; 42. Oil outlet tank; 43. Oil outlet hole; 44. Piston plate; 45. Push-pull plate; 46. Elastic part 1; 50. Transmission mechanism; 51. Transmission shaft; 52. Transmission wheel; 53. Belt; 60. Oil control mechanism; 61. Internal threaded cylinder; 62. Threaded rod; 63. Knob; 64. Connecting block; 65. Elastic part 2. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0027] Example

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the metallized film damage-resistant coated cold drum comprises a cold drum body 10 and an oil box 20. An oil supply mechanism 40 is arranged on one side of the cold drum body 10. An oil control mechanism 60 for controlling the oil output is installed inside the oil supply mechanism 40. A driving mechanism 30 for driving the cold drum body 10 to rotate is installed on the outer side of the oil box 20. The driving mechanism 30 is connected to the oil control mechanism 60 through a transmission mechanism 50. The oil supply mechanism 40 comprises an oil storage tank 41 fixed on the oil box 20. An oil outlet tank 42 is installed on the side of the oil storage tank 41 close to the oil box 20. The oil outlet tank 42 is provided with a plurality of oil outlet holes 43. A piston plate 44 is slidably installed inside the oil outlet tank 42. A push-pull plate 45 penetrating the side wall of the oil outlet tank 42 is fixedly connected to the bottom of the piston plate 44. An elastic member 46 is installed between the push-pull plate 45 and the oil box 20.

[0029] It should be noted that the cold drum body 10 rotates counterclockwise, and driven rollers are provided on the upper and lower sides of the cold drum body 10 to assist in conveying the base film. The elastic member 46 adopts but is not limited to a spring. When the elastic member 65 has no contact with the push-pull plate 45, the piston plate 44 can be pushed by the elastic member 46 to always be located above the oil outlet hole 43, so that the lubricating oil inside the oil storage tank 41 cannot flow out.

[0030] Specifically, the oil control mechanism 60 squeezes the push-pull plate 45 once every rotation, and through the cooperation of the elastic member 46, it pushes the piston plate 44 to move up and down inside the oil outlet tank 42 back and forth, automatically adding oil to the oil box 20, so that an oil film is formed on the surface of the cold drum body 10, so that during the metallized film evaporation process, the metal layer cannot adhere to the cold drum body 10, thereby avoiding burns to the base film.

[0031] like Figure 1 , Figure 3 and Figure 4 As shown, the oil control mechanism 60 includes an internal threaded barrel 61, which is threadedly connected to a threaded rod 62, and one end of the threaded rod 62 away from the internal threaded barrel 61 is fixedly connected to a knob 63, and the side of the knob 63 away from the threaded rod 62 is rotatably connected to a connecting block 64, and the connecting block 64 is fixedly connected to the outer side of the internal threaded barrel 61 with an elastic member 2 65.

[0032] It should be noted that the elastic member 2 65 uses but is not limited to a spring leaf, and its hardness is higher than that of the elastic member 1 46 .

[0033] Specifically, rotating the knob 63 drives the threaded rod 62 to rotate, and the distance from the connecting block 64 to the end of the internal threaded tube 61 can be adjusted through the threaded cooperation between the threaded rod 62 and the internal threaded tube 61, thereby changing the curvature of the elastic member 65. When the curvature of the elastic member 65 is smaller, the distance of the push-pull plate 45 will be shorter, so that the number of oil outlet holes 43 exposed above the piston plate 44 will be smaller, resulting in less oil output. When the curvature of the elastic member 65 is larger, the oil output will be more. The amount of oil flowing out can be adjusted at any time according to the specific situation to avoid waste.

[0034] like Figure 1 As shown, the driving mechanism 30 includes a mounting base 31 fixed on the outside of the oil box 20, and a motor 32 is installed on the mounting base 31. The output end of the motor 32 is fixedly connected to a driving shaft 33, and the end of the driving shaft 33 away from the motor 32 is fixedly connected to the cold drum body 10 through a cold drum fixing frame 35.

[0035] Specifically, the motor 32 drives the cold drum body 10 fixed on the cold drum fixing frame 35 to rotate through the drive shaft 33 fixedly connected thereto. During the process of the cold drum body 10 rotating through the oil box 20, a layer of oil film will adhere to the surface of the cold drum body 10, which can reduce the friction between the cold drum body 10 and the base film, so that during the metallized film evaporation process, the metal layer cannot adhere to the cold drum body 10, thereby avoiding burns to the base film.

[0036] like Figure 1 As shown, the driving shaft 33 is mounted with a bearing frame 34 , and the rear end of the bearing frame 34 is fixedly connected to the mounting seat 31 .

[0037] It should be noted that two mounting seats 31 , driving shafts 33 , bearing frames 34 and cooling drum fixing frames 35 are provided, respectively located on both sides of the cooling drum body 10 , for supporting the stable rotation of the cooling drum body 10 .

[0038] like Figure 1 and Figure 3 As shown, the transmission mechanism 50 includes a transmission shaft 51 rotatably mounted on the outer wall of the oil storage tank 41, an internal threaded tube 61 fixedly sleeved in the inner ring of the transmission shaft 51, a threaded hole is opened on one side of the transmission shaft 51, a fastening bolt is sleeved in the inner ring of the threaded hole, and one end of the fastening bolt is in contact with the internal threaded tube 61.

[0039] Specifically, the internal threaded barrel 61 will rotate around the transmission shaft 51 as the axis, and the position of the internal threaded barrel 61 inside the transmission shaft 51 can be adjusted by loosening and tightening the bolts.

[0040] like Figure 1 and Figure 3 As shown, the outer rings of the transmission shaft 51 and the driving shaft 33 are both fixedly sleeved with transmission wheels 52 , and the two transmission wheels 52 are connected through a belt 53 .

[0041] Specifically, when the motor 32 drives the drive shaft 33 to rotate, it can drive the transmission shaft 51 to rotate through two transmission wheels 52 and a belt 53. The rotation of the transmission shaft 51 will drive the oil control mechanism 60 connected thereto to rotate, thereby controlling the oil supply mechanism 40 to supply oil to the oil box 20.

[0042] A coating method for a metallized film damage-resistant coating cold drum comprises the following steps:

[0043] S1. Lubrication:

[0044] When the driving mechanism 30 drives the cold drum body 10 to rotate, the transmission mechanism 50 drives the oil control mechanism 60 to rotate. The oil control mechanism 60 squeezes the push-pull plate 45 once every rotation. The piston plate 44 is pushed to move up and down inside the oil outlet box 42 through the cooperation of the elastic member 46, and the oil box 20 is automatically added with oil. When the cold drum body 10 rotates to transfer the base film, an oil film is formed on its surface, so that the metal layer cannot adhere to the cold drum body 10 during the metallized film evaporation process, thereby avoiding burns to the base film.

[0045] S2. Oil quantity adjustment:

[0046] Turning the knob 63 drives the threaded rod 62 to rotate, and the threaded cooperation between the threaded rod 62 and the internal threaded tube 61 can adjust the distance from the connecting block 64 to the end of the internal threaded tube 61, thereby changing the curvature of the elastic member 65. When the curvature of the elastic member 65 is smaller, the distance of the push-pull plate 45 will be shorter, so that the number of oil outlet holes 43 exposed above the piston plate 44 will be smaller, resulting in less oil output. When the curvature of the elastic member 65 is larger, the oil output will be more.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A metallized film damage-resistant coating cold drum, comprising a cold drum body (10) and an oil box (20), characterized in that: An oil supply mechanism (40) is provided on one side of the cold drum body (10), an oil control mechanism (60) for controlling the oil output is installed inside the oil supply mechanism (40), a driving mechanism (30) for driving the cold drum body (10) to rotate is installed on the outside of the oil box (20), and the driving mechanism (30) is connected to the oil control mechanism (60) through a transmission mechanism (50); The oil supply mechanism (40) comprises an oil storage tank (41) fixed on the oil box (20), an oil outlet box (42) is installed on the side of the oil storage tank (41) close to the oil box (20), the oil outlet box (42) is provided with a plurality of oil outlet holes (43), and a piston plate (44) is slidably installed inside the oil outlet box (42), the bottom of the piston plate (44) is fixedly connected to a push-pull plate (45) penetrating the side wall of the oil outlet box (42), and an elastic member (46) is installed between the push-pull plate (45) and the oil box (20); The oil control mechanism (60) squeezes the push-pull plate (45) once every rotation, and pushes the piston plate (44) to move up and down inside the oil outlet box (42) through the cooperation of the elastic member (46), automatically adding oil to the oil box (20), so that an oil film is formed on the surface of the cold drum body (10), so that the metal layer cannot adhere to the cold drum body (10) during the metallized film evaporation process, thereby avoiding burns to the base film.

2. The metallized film damage-resistant coating cold drum according to claim 1, characterized in that: The oil control mechanism (60) comprises an internal threaded barrel (61), the internal threaded barrel (61) being threadedly connected to a threaded rod (62), one end of the threaded rod (62) away from the internal threaded barrel (61) being fixedly connected to a knob (63), a side of the knob (63) away from the threaded rod (62) being rotatably connected to a connecting block (64), and the connecting block (64) being fixedly connected to the outer side of the internal threaded barrel (61) by a second elastic member (65).

3. The metallized film damage-resistant coating cold drum according to claim 2, characterized in that: The driving mechanism (30) comprises a mounting seat (31) fixed on the outside of the oil box (20), a motor (32) being mounted on the mounting seat (31), a driving shaft (33) being fixedly connected to the output end of the motor (32), and an end of the driving shaft (33) away from the motor (32) being fixedly connected to the cold drum body (10) via a cold drum fixing frame (35).

4. The metallized film damage-resistant coating cold drum according to claim 3, characterized in that: The driving shaft (33) is mounted with a bearing frame (34), and the rear end of the bearing frame (34) is fixedly connected to the mounting seat (31).

5. The metallized film damage-resistant coating cold drum according to claim 3, characterized in that: The transmission mechanism (50) comprises a transmission shaft (51) rotatably mounted on the outer wall of the oil storage tank (41); the internal threaded tube (61) is fixedly sleeved in the inner ring of the transmission shaft (51); a threaded hole is opened on one side of the transmission shaft (51); a fastening bolt is sleeved in the inner ring of the threaded hole; one end of the fastening bolt abuts against the internal threaded tube (61).

6. The metallized film damage-resistant coating cold drum according to claim 5, characterized in that: The outer rings of the transmission shaft (51) and the drive shaft (33) are both fixedly sleeved with transmission wheels (52), and the two transmission wheels (52) are connected by a belt (53).

7. The coating method of a metallized thin film damage-resistant coating cold drum according to any one of claims 1 to 6, characterized in that: The following steps are included: S1. Lubrication: When the driving mechanism (30) drives the cold drum body (10) to rotate, the transmission mechanism (50) drives the oil control mechanism (60) to rotate. Each time the oil control mechanism (60) rotates one circle, it squeezes the push-pull plate (45) once. Through the cooperation of the elastic member 1 (46), the piston plate (44) is pushed to move up and down inside the oil outlet box (42) one back and forth, and the oil box (20) is automatically added with oil. When the cold drum body (10) rotates to transfer the base film, a layer of oil film is formed on its surface, so that during the metallized film evaporation process, the metal layer cannot adhere to the cold drum body (10), thereby avoiding burns to the base film. S2. Oil quantity adjustment: Turning the knob (63) drives the threaded rod (62) to rotate. The threaded cooperation between the threaded rod (62) and the internal threaded tube (61) adjusts the distance from the connecting block (64) to the end of the internal threaded tube (61), thereby changing the curvature of the elastic member 2 (65). When the curvature of the elastic member 2 (65) is smaller, the distance of the push-pull plate (45) is shorter, so that the number of oil outlet holes (43) exposed above the piston plate (44) is smaller, resulting in less oil output. When the curvature of the elastic member 2 (65) is larger, the oil output is greater.

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