Cast film puller cooling device

Abstract

The utility model discloses a kind of casting film traction cooling devices, it includes rack, swing roller mechanism, first driven cooling roller, second driven cooling roller, guide roller, driving cooling roller, power mechanism and press roller mechanism;The swing roller mechanism is arranged at the top of rack, and the swing roller mechanism is used to adjust the tension of casting film;The first driven cooling roller and second driven cooling roller are all below swing roller mechanism, and the first driven cooling roller and second driven cooling roller are respectively rotatably connected with rack, and the guide roller is below the first driven cooling roller and second driven cooling roller, and the guide roller is rotatably connected with rack;The driving cooling roller is below guide roller;The driving cooling roller, first driven cooling roller and second driven cooling roller are used to cool casting film.The utility model provides a kind of casting film traction cooling device, can be quickly cooled to casting film, while guaranteeing the flatness of casting film in cooling process.

Description

Technical Field

[0001] This utility model relates to a casting film traction cooling device, belonging to the field of casting film production technology. Background Technology

[0002] Currently, in the production process of cast film, the raw materials are first heated and melted in an extruder, and then extruded through an extrusion die. Since the melting temperature is typically as high as 300°C, the extruded cast film also has a very high temperature. Cast film is usually stored in rolls, and the freshly extruded film, due to its high temperature, is not easy to wind up; it needs to be cooled before winding. Therefore, there is an urgent need for a cooling device with good cooling effect to cool the high-temperature cast film. Although automatic cooling equipment for cast film already exists, there is still room for improvement in its cooling effect. Furthermore, because the cast film has a high temperature, it is prone to deformation during cooling; ensuring the flatness of the cast film during cooling is also a pressing issue that needs to be addressed. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a casting film traction cooling device that can rapidly cool the casting film while ensuring the flatness of the casting film during the cooling process.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A cast film traction cooling device includes a frame, a swing roller mechanism, a first driven cooling roller, a second driven cooling roller, a guide roller, a driving cooling roller, a power mechanism, and a pressure roller mechanism;

[0006] The oscillating roller mechanism is located at the top of the frame and is used to adjust the tension of the cast film. The first driven cooling roller and the second driven cooling roller are both located below the oscillating roller mechanism and are rotatably connected to the frame. The guide roller is located below the first driven cooling roller and the second driven cooling roller and is rotatably connected to the frame. The active cooling roller is located below the guide roller and is rotatably connected to the frame. The active cooling roller, the first driven cooling roller, and the second driven cooling roller are used to cool the cast film. The pressure roller mechanism is used to press the cast film onto the active cooling roller. The power mechanism is used to drive the active cooling roller, the first driven cooling roller, and the second driven cooling roller to rotate.

[0007] Furthermore, the swing roller mechanism includes a swing roller, a swing roller cylinder, a swing roller arm, and a swing roller arm central shaft. The two ends of the swing roller arm central shaft are rotatably connected to the machine frame. The two swing roller arms are respectively fixed at the two ends of the swing roller arm central shaft. A pull rod is connected between the two swing roller arms. The swing roller arm is hinged to the piston rod of the swing roller cylinder. The swing roller cylinder is fixed on the machine frame. The two ends of the swing roller are respectively rotatably connected to the two swing roller arms.

[0008] Furthermore, a buffer pad is provided on the frame, and the buffer pad is located on the side of the swing roller arm.

[0009] Furthermore, the power mechanism includes a motor, a reducer, a belt, a driving pulley, a driven pulley, a flat belt, a first flat pulley, a transition flat pulley, a second flat pulley, and a third flat pulley. The motor is connected to the reducer, which is fixed to the frame. The reducer drives the driving pulley to rotate, and the driving pulley is connected to the driven pulley via a belt. The driven pulley is fixed to the driving cooling roller. The first flat pulley is fixed to the driving cooling roller, the transition flat pulley is fixed to the frame, the second flat pulley is fixed to the first driven cooling roller, and the third flat pulley is fixed to the second driven cooling roller. The first flat pulley, the transition flat pulley, the second flat pulley, and the third flat pulley are connected by a flat belt drive.

[0010] Furthermore, the active cooling roller, the first driven cooling roller, and the second driven cooling roller have the same structure.

[0011] Furthermore, the active cooling roller has an axially arranged cooling channel for conveying cooling water. The inlet of the cooling channel is connected to an external water inlet tank via a rotary joint, and the outlet of the cooling channel is connected to an external water outlet tank via a rotary joint.

[0012] Furthermore, the pressure roller mechanism includes a pressure roller, a pressure roller cylinder, a pressure roller swing arm, and a pressure roller swing arm central shaft. The two ends of the pressure roller swing arm central shaft are rotatably connected to the machine frame. The two pressure roller swing arms are respectively fixed at the two ends of the pressure roller swing arm central shaft. The pressure roller swing arms are hinged to the piston rod of the pressure roller cylinder. The pressure roller cylinder is fixed on the machine frame. The two ends of the pressure roller are respectively rotatably connected to the two pressure roller swing arms.

[0013] By adopting the above technical solution, this utility model employs a three-stage cooling process for the cast film using a first driven cooling roller, a second driven cooling roller, and an active cooling roller. Each cooling roller has an independent cooling water circuit, resulting in excellent cooling performance and rapid cooling of the cast film to room temperature. During the cooling process, the tension of the cast film is adjusted by a swing roller mechanism, and the cast film on the active cooling roller is pressed by a pressure roller mechanism, ensuring that the cast film remains flat during output. This guarantees the integrity of the cast film's shape and quality, facilitating subsequent winding operations. Attached Figure Description

[0014] Figure 1 This is a front view of the cast film traction cooling device of this utility model;

[0015] Figure 2 This is a schematic diagram of the swing roller mechanism of this utility model;

[0016] Figure 3 This is a schematic diagram of the pressure roller mechanism of this utility model;

[0017] Figure 4 This is a schematic diagram of the power mechanism of this utility model;

[0018] Figure 5 This is a schematic diagram of the transmission of the power mechanism of this utility model using a belt and a flat belt.

[0019] Figure 6 This is a schematic diagram showing the orientation of the cast film of this utility model;

[0020] Figure 7 This is a schematic diagram of the internal structure of the active cooling roller of this utility model. Detailed Implementation

[0021] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0022] like Figure 1 , 6 As shown, this embodiment provides a cast film traction cooling device, which includes a frame 1, a swing roller mechanism 2, a first driven cooling roller 3, a second driven cooling roller 4, a guide roller 5, a driving cooling roller 6, a power mechanism 7, and a pressure roller mechanism 8.

[0023] The swing roller mechanism 2 is located at the top of the frame 1. The cast film enters through the swing roller mechanism 2, and the tension of the cast film is adjusted by the swing roller mechanism 2 according to actual needs. Tensile the cast film to ensure that the shape of the cast film remains intact.

[0024] The first driven cooling roller 3 and the second driven cooling roller 4 are both located below the swing roller mechanism 2. The first driven cooling roller 3 and the second driven cooling roller 4 are rotatably connected to the frame 1. The guide roller 5 is located below the first driven cooling roller 3 and the second driven cooling roller 4, and is rotatably connected to the frame 1. The active cooling roller 6 is located below the guide roller 5 and is rotatably connected to the frame 1. The cast film output from the swing roller mechanism 2 passes sequentially through the first driven cooling roller 3 and the second driven cooling roller 4, and is then guided by the guide roller 5 onto the active cooling roller 6. The first driven cooling roller 3, the second driven cooling roller 4, and the active cooling roller 6 provide three stages of cooling for the cast film. The pressure roller mechanism 8 is used to press the cast film onto the active cooling roller 6 to ensure the flatness of the cast film. The power mechanism 7 is used to drive the active cooling roller 6, the first driven cooling roller 3, and the second driven cooling roller 4 to rotate, rapidly cooling the cast film during its transport.

[0025] like Figure 2 As shown, the swing roller mechanism 2 in this embodiment includes a swing roller 21, a swing roller cylinder 22, a swing roller arm 23, and a swing roller arm central shaft 24. Both ends of the swing roller arm central shaft 24 are rotatably connected to the frame 1. Two swing roller arms 23 are respectively fixed to both ends of the swing roller arm central shaft 24. A pull rod 25 connects the two swing roller arms 23. The swing roller arms 23 are hinged to the piston rod of the swing roller cylinder 22, which is fixed to the frame 1. Both ends of the swing roller 21 are rotatably connected to the two swing roller arms 23. The swing roller cylinder 22 drives the swing roller arms 23 to swing left and right, and the swing roller arms 23 then drive the swing roller 21 to adjust the tension of the cast film. Buffer pads 26 are provided on the frame 1, with one buffer pad 26 on each of the left and right sides of each swing roller arm 23, to limit and buffer the left and right swing of the swing roller arm 23.

[0026] like Figure 4 , 5As shown, the power mechanism 7 in this embodiment includes a motor 71, a reducer 72, a belt 73, a drive pulley 74, a driven pulley 75, a flat belt 76, a first flat pulley 77, a transition flat pulley 78, a second flat pulley 79, and a third flat pulley 710. The motor 71 is connected to the reducer 72, which is fixed to the frame 1. The reducer 72 drives the drive pulley 74 to rotate. The drive pulley 74 is connected to the driven pulley 75 via the belt 73, and the driven pulley 75 is fixed to the active cooling roller 6. The drive pulley 74 drives the driven pulley 75 to rotate via the belt 73, and the driven pulley 75 then drives the active cooling roller 6 to rotate. The first flat pulley 77 is fixed to the active cooling roller 6, the transition flat pulley 78 is fixed to the frame 1, the second flat pulley 79 is fixed to the first driven cooling roller 3, and the third flat pulley 710 is fixed to the second driven cooling roller 4. The first flat pulley 77, the transition flat pulley 78, the second flat pulley 79, and the third flat pulley 710 are connected by a flat belt 76. The active cooling roller 6 drives the first flat pulley 77 to rotate, and the first flat pulley 77 then drives the transition flat pulley 78, the second flat pulley 79, and the third flat pulley 710 to rotate via the flat belt 76. The second flat pulley 79 drives the first driven cooling roller 3 to rotate, and the third flat pulley 710 drives the second driven cooling roller 4 to rotate.

[0027] like Figure 1 As shown, the active cooling roller 6, the first driven cooling roller 3, and the second driven cooling roller 4 in this embodiment have the same structure. Taking the active cooling roller 6 as an example, as... Figure 7 As shown, the active cooling roller 6 has an axially arranged cooling channel 61 for conveying cooling water. The inlet of the cooling channel 61 is connected to an external water inlet tank via a rotary joint 62, and the outlet of the cooling channel 61 is connected to an external water outlet tank via a rotary joint 62, thus forming a cooling loop from the water inlet tank to the cooling channel 61 and then to the water outlet tank, thereby cooling the cast film passing through the cooling roller. In this embodiment, a conventional water pipe rotary joint 62 is used to prevent the water pipe from rotating with the cooling roller.

[0028] like Figure 3 As shown, the pressure roller mechanism 8 in this embodiment includes a pressure roller 81, a pressure roller cylinder 82, a pressure roller swing arm 83, and a pressure roller swing arm central shaft 84. Both ends of the pressure roller swing arm central shaft 84 are rotatably connected to the frame 1. Two pressure roller swing arms 83 are respectively fixed to both ends of the pressure roller swing arm central shaft 84. The pressure roller swing arms 83 are hinged to the piston rod of the pressure roller cylinder 82, which is fixed to the frame 1. Both ends of the pressure roller 81 are rotatably connected to the two pressure roller swing arms 83. The pressure roller cylinder 82 drives the pressure roller swing arms 83 to swing up and down, which in turn drives the pressure roller 81 to press the cast film on the active cooling roller 6, ensuring the cast film remains flat during output.

[0029] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A casting film traction cooling device, characterized in that: It includes a frame (1), a swing roller mechanism (2), a first driven cooling roller (3), a second driven cooling roller (4), a guide roller (5), a driving cooling roller (6), a power mechanism (7), and a pressure roller mechanism (8). The swing roller mechanism (2) is located at the top of the frame (1) and is used to adjust the tension of the cast film. The first driven cooling roller (3) and the second driven cooling roller (4) are both located below the swing roller mechanism (2). The first driven cooling roller (3) and the second driven cooling roller (4) are rotatably connected to the frame (1). The guide roller (5) is located below the first driven cooling roller (3) and the second driven cooling roller (4) and is rotatably connected to the frame (1). The active cooling roller (6) is located below the guide roller (5) and is rotatably connected to the frame (1). The active cooling roller (6), the first driven cooling roller (3) and the second driven cooling roller (4) are used to cool the cast film. The pressure roller mechanism (8) is used to press the cast film onto the active cooling roller (6). The power mechanism (7) is used to drive the active cooling roller (6), the first driven cooling roller (3) and the second driven cooling roller (4) to rotate.

2. The casting film traction cooling device according to claim 1, characterized in that: The swing roller mechanism (2) includes a swing roller (21), a swing roller cylinder (22), a swing roller arm (23), and a swing roller arm central shaft (24). The two ends of the swing roller arm central shaft (24) are rotatably connected to the frame (1). The two swing roller arms (23) are respectively fixed at the two ends of the swing roller arm central shaft (24). A pull rod (25) is connected between the two swing roller arms (23). The swing roller arm (23) is hinged to the piston rod of the swing roller cylinder (22). The swing roller cylinder (22) is fixed on the frame (1). The two ends of the swing roller (21) are rotatably connected to the two swing roller arms (23).

3. The casting film traction cooling device according to claim 2, characterized in that: A buffer pad (26) is provided on the frame (1), and the buffer pad (26) is located on the side of the swing roller arm (23).

4. The casting film traction cooling device according to claim 1, characterized in that: The power mechanism (7) includes a motor (71), a reducer (72), a belt (73), a drive pulley (74), a driven pulley (75), a flat belt (76), a first flat pulley (77), a transition flat pulley (78), a second flat pulley (79), and a third flat pulley (710); the motor (71) is connected to the reducer (72), and the reducer (72) is fixed on the frame (1); the reducer (72) drives the drive pulley (74) to rotate, and the drive pulley (74) is connected to the driven pulley via the belt (73). The pulleys (75) are connected, and the driven pulley (75) is fixed on the active cooling roller (6); the first flat pulley (77) is fixed on the active cooling roller (6), the transition flat pulley (78) is fixed on the frame (1), the second flat pulley (79) is fixed on the first driven cooling roller (3), and the third flat pulley (710) is fixed on the second driven cooling roller (4). The first flat pulley (77), the transition flat pulley (78), the second flat pulley (79) and the third flat pulley (710) are driven by a flat belt (76).

5. The casting film traction cooling device according to claim 1, characterized in that: The active cooling roller (6), the first driven cooling roller (3), and the second driven cooling roller (4) have the same structure.

6. The casting film traction cooling device according to claim 5, characterized in that: The active cooling roller (6) has an internal axial cooling channel (61) for conveying cooling water. The inlet of the cooling channel (61) is connected to an external water inlet tank through a rotary joint (62), and the outlet of the cooling channel (61) is connected to an external water outlet tank through a rotary joint (62).

7. The casting film traction cooling device according to claim 1, characterized in that: The pressure roller mechanism (8) includes a pressure roller (81), a pressure roller cylinder (82), a pressure roller swing arm (83), and a pressure roller swing arm central shaft (84). The two ends of the pressure roller swing arm central shaft (84) are rotatably connected to the frame (1). The two pressure roller swing arms (83) are respectively fixed at the two ends of the pressure roller swing arm central shaft (84). The pressure roller swing arms (83) are hinged to the piston rod of the pressure roller cylinder (82). The pressure roller cylinder (82) is fixed on the frame (1). The two ends of the pressure roller (81) are respectively rotatably connected to the two pressure roller swing arms (83).

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