Cooling device for plastic film production

Abstract

The utility model discloses a plastic film production cooling device which comprises an installation frame, supporting legs are fixedly connected to the four corners of the bottom of the installation frame, connecting plates are fixedly connected to the front end and the rear end of the upper surface of the installation frame, and a first motor is installed at the bottom of the right side of the connecting plate at the front end. The power output end of the first motor is connected with a rotating roller, the first motor penetrates through the connecting plate, the rotating roller is rotationally mounted on the mounting frame, and a film pressing mechanism is arranged at the upper end of the rotating roller and mounted on the connecting plate; the two sets of cooling roller mechanisms are installed in the middle of the connecting plate, through the cooling roller mechanisms, the plastic film obtained after film pressing can be subjected to primary cooling and shaping conveniently, cooling rollers are uniform in cooling, the problem that the plastic film is locally thinned is avoided, through the air cooling mechanism, the plastic film obtained after primary cooling can be subjected to secondary cooling conveniently, and the cooling efficiency is improved. And the temperature reaches a proper temperature.

Description

Technical Field

[0001] This utility model relates to the field of plastic film production technology, and in particular to a cooling device for plastic film production. Background Technology

[0002] Plastic film refers to thin films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene, and other resins, used for packaging and as a coating layer. Plastic packaging and plastic packaging products are taking up an increasingly larger share of the market, especially composite plastic flexible packaging, which has been widely used in the food, pharmaceutical, and chemical industries. Film blowing and cooling involves blowing hot-melted plastic to make it bulge into a film, which is then cooled and rolled up to form the finished plastic film.

[0003] A blown film cooling device for plastic film production, disclosed in announcement number CN222554238U, includes a housing. A wind box is fixedly connected to the right side of the housing, and a fan is fixedly installed on the inner bottom wall of the wind box. Two take-up rollers are rotatably connected inside the housing, and an air outlet mesh is fixedly connected to the inner top wall of the housing. A blown film assembly is mounted on the housing, and an adjustment assembly is also provided. The blown film assembly includes a motor fixedly installed on the inner wall of the right side of the housing. This blown film cooling device for plastic film production, by incorporating the blown film assembly, allows for the filtration of dust from the outside air by a dust filter during the blown film cooling process, reducing the amount of dust blown onto the plastic film surface. Furthermore, by driving a toothed plate to reciprocate up and down, a pusher plate vibrates and cleans any water droplets or other impurities that may be adhering to the plastic film surface, ensuring efficient plastic film production.

[0004] Existing cooling devices for plastic film production are difficult to cool the plastic film uniformly, which can easily lead to problems such as localized thinning of the plastic film and fluctuations in tensile strength, thus affecting the production quality of the plastic film. Therefore, it is necessary to provide a new cooling device for plastic film production to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a cooling device for plastic film production to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cooling device for plastic film production, comprising: a mounting frame, wherein support feet are fixedly connected to the four corners of the bottom of the mounting frame, and connecting plates are fixedly connected to the front and rear ends of the upper surface of the mounting frame, a first motor is installed at the bottom right side of the front connecting plate, a rotating roller is connected to the power output end of the first motor, the first motor passes through the connecting plate, and the rotating roller is rotatably mounted on the mounting frame, and a film pressing mechanism is arranged at the upper end of the rotating roller, and the film pressing mechanism is mounted on the connecting plate;

[0007] The cooling roller mechanism includes two sets of cooling roller mechanisms installed in the middle of the connecting plate. A control panel is installed on the left side of the front end of the connecting plate, and an air-cooling mechanism is installed on the left side of the connecting plate. An electric cutter is mounted on the left side of the air-cooling mechanism and is also mounted on the connecting plate. A mounting plate is fixedly connected to the left side of the connecting plate. A third motor is installed on the left side of the rear end of the mounting plate. The power output end of the third motor is connected to a receiving roller, which is rotatably mounted on the mounting plate.

[0008] As a further description of the above technical solution: the film pressing mechanism includes a mounting block installed on the upper end of the connecting plates on one side close to each other, an adjusting block is slidably installed in the middle of the mounting block, and the mounting block has a sliding groove adapted to the adjusting block, and a pressure roller is installed in the middle of the adjusting block.

[0009] As a further description of the above technical solution: the upper end of the mounting block is screwed with a threaded adjusting bolt, and the bottom of the threaded adjusting bolt is rotatably mounted on the adjusting block.

[0010] As a further description of the above technical solution: the cooling roller mechanism includes a cooling rod rotatably mounted on a connecting plate, a cooling roller fixedly connected to the outer surface of the cooling rod, a spiral air guide vane installed at the rear end of the inner cavity of the cooling rod, a second motor installed in the middle of the front end of the connecting plate, a sprocket installed at the power output end of the second motor and the front end of the cooling rod, and a chain sleeved on the outer surface of the sprocket.

[0011] As a further description of the above technical solution: the inner cavity of the cooling roller is provided with ventilation grooves, and the cooling roller is made of alloy steel.

[0012] As a further description of the above technical solution: the air-cooling mechanism includes a protective chamber placed between the cooling roller mechanism and the electric cutter, and the protective chamber is fixedly connected to the connecting plate. An air pump is installed on the left side of the rear end of the connecting plate. The power output end of the air pump is connected to a connecting pipe, and the connecting pipe passes through the connecting plate and the protective chamber. The other end of the connecting pipe is connected to a U-shaped pipe, and several air guides are inserted at equal intervals on one side of the U-shaped pipe.

[0013] As a further description of the above technical solution: a feeding port is provided in the middle of the protective chamber, and several hot air exhaust holes are provided at equal intervals on the upper surface of the protective chamber.

[0014] This invention provides a cooling device for plastic film production. It has the following beneficial effects:

[0015] 1. By setting up a cooling roller mechanism, the plastic film after pressing is initially cooled and shaped. The cooling roller cools evenly, avoiding problems such as local thinning of the plastic film. The second motor drives the sprocket to rotate, so that multiple sets of sprockets connected by the chain rotate synchronously, causing the spiral air guide vanes in the inner cavity of the cooling rod to rotate. This allows external air to be introduced into the inner cavity of the cooling roller, so that it can be continuously cooled and used, ensuring the cooling effectiveness of this device.

[0016] 2. By setting up an air-cooling mechanism, gas is delivered into the connecting pipe and U-shaped pipe through an air pump. Multiple sets of air guides are evenly distributed to facilitate the secondary cooling of the plastic film after initial cooling, so that it reaches a suitable temperature. By setting up a protective chamber and hot air exhaust hole, the device can be protected while the hot air generated during the cooling process can be discharged upwards to ensure the effectiveness of cooling inside the protective chamber. Attached Figure Description

[0017] Figure 1 This utility model provides a schematic diagram of the overall structure of a cooling device for plastic film production. Figure 1 ;

[0018] Figure 2 This utility model provides a schematic diagram of the overall structure of a cooling device for plastic film production. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the medium-pressure membrane mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the cooling roller mechanism in this utility model;

[0021] Figure 5 This is a schematic diagram of the air-cooling mechanism in this utility model.

[0022] Legend:

[0023] 1. Mounting frame; 2. Support feet; 3. Connecting plate; 4. First motor; 5. Rotating roller; 6. Film pressing mechanism; 601. Mounting block; 602. Adjusting block; 603. Pressure roller; 604. Threaded adjusting bolt; 7. Cooling roller mechanism; 701. Cooling rod; 702. Cooling roller; 703. Spiral air guide; 704. Second motor; 705. Sprocket; 706. Chain; 8. Control panel; 9. Air cooling mechanism; 901. Protective chamber; 902. Air pump; 903. Connecting pipe; 904. U-shaped pipe; 905. Air vent; 906. Hot air exhaust hole; 10. Electric cutter; 11. Mounting plate; 12. Third motor; 13. Receiving roller. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1, Reference Figure 1 and Figure 2 This utility model discloses a cooling device for plastic film production, which can solve the problems of existing plastic film production cooling devices, such as difficulty in uniformly cooling the plastic film, which easily leads to local thinning of the plastic film and fluctuations in tensile strength, thus affecting the production quality of the plastic film. It includes a mounting frame 1, with support feet 2 fixedly connected to the four corners of the bottom of the mounting frame 1, and connecting plates 3 fixedly connected to the front and rear ends of the upper surface of the mounting frame 1. A first motor 4 is installed on the bottom right side of the front connecting plate 3, and a rotating roller 5 is connected to the power output end of the first motor 4. The first motor 4 passes through the connecting plate 3, and the rotating roller 5 is rotatably mounted on the mounting frame 1. A film pressing mechanism 6 is placed on the upper end of the rotating roller 5, and the film pressing mechanism 6 is mounted on the connecting plate 3.

[0026] The cooling roller mechanism 7 has two sets of cooling roller mechanisms 7 installed in the middle of the connecting plate 3. The control panel 8 is installed on the left side of the front connecting plate 3. The air cooling mechanism 9 is installed on the left side of the connecting plate 3. The electric cutter 10 is placed on the left side of the air cooling mechanism 9 and is mounted on the connecting plate 3. The mounting plate 11 is fixedly connected to the left side of the connecting plate 3. The third motor 12 is installed on the left side of the rear mounting plate 11. The power output end of the third motor 12 is connected to the receiving roller 13. The receiving roller 13 is rotatably mounted on the mounting plate 11.

[0027] Working principle: Mounting bracket 1 and support feet 2 facilitate the installation and support of this device; connecting plate 3 facilitates the installation of components; first motor 4, rotating roller 5 and film pressing mechanism 6 facilitate the pressing of plastic film; cooling roller mechanism 7 facilitates the initial cooling and shaping of the pressed plastic film; control panel 8 facilitates the switching of this device on and off; air cooling mechanism 9 facilitates the uniform secondary cooling of the initially cooled plastic film to reach a suitable temperature; electric cutter 10 facilitates the cutting of the collected plastic film; mounting plate 11, third motor 12 and take-up roller 13 facilitate the rotation and winding of the cooled plastic film.

[0028] Example 2, refer to Figure 3 , Figure 4 and Figure 5This embodiment solves the problem that existing plastic film production cooling devices are difficult to uniformly cool the plastic film, easily leading to local thinning and fluctuations in tensile strength, thus affecting the production quality of the plastic film. The new plastic film production cooling device further includes a film pressing mechanism 6 comprising a mounting block 601 mounted on the upper end of a connecting plate 3 on one side close to each other. An adjusting block 602 is slidably mounted in the middle of the mounting block 601, and the mounting block 601 has a groove adapted to the adjusting block 602. A pressure roller 603 is mounted in the middle of the adjusting block 602. A threaded adjusting bolt 604 is screwed to the upper end of the mounting block 601, and the bottom of the threaded adjusting bolt 604 is rotatably mounted on the adjusting block 602. A cooling roller mechanism 7 includes a cooling rod 701 rotatably mounted on the connecting plate 3. A cooling roller 702 is fixedly connected to the outer surface of the cooling rod 701, and a spiral guide vane 703 is mounted at the rear end of the inner cavity of the cooling rod 701. A second motor 704 is installed in the middle of the front end of the front connecting plate 3. A sprocket 705 is installed at the power output end of the second motor 704 and the front end of the cooling rod 701. A chain 706 is sleeved on the outer surface of the sprocket 705. A ventilation groove is opened in the inner cavity of the cooling roller 702. The cooling roller 702 is made of alloy steel. The air cooling mechanism 9 includes a protective chamber 901 placed between the cooling roller mechanism 7 and the electric cutter 10. The protective chamber 901 is fixedly connected to the connecting plate 3. An air pump 902 is installed on the left side of the rear end of the rear connecting plate 3. A connecting pipe 903 is connected to the power output end of the air pump 902. The connecting pipe 903 passes through the connecting plate 3 and the protective chamber 901. A U-shaped pipe 904 is connected to the other end of the connecting pipe 903. Several air guides 905 are inserted at equal intervals on one side of the U-shaped pipe 904. A feeding port is opened in the middle of the protective chamber 901. Several hot air exhaust holes 906 are opened at equal intervals on the upper surface of the protective chamber 901.

[0029] Working principle: Before use, rotate the threaded adjusting bolt 604 to adjust the pressure roller 603 and rotating roller 5 on the adjusting block 602 to a suitable film pressing width. Place the blown plastic film behind the device, then turn on the third motor 12 to drive the take-up roller 13 for winding. Simultaneously with winding, turn on the first motor 4 to drive the rotating roller 5, allowing the pressure roller 603 and rotating roller 5 to press the film. When passing the cooling roller 702, turn on the second motor 704, which drives the sprocket 705 to rotate. This causes the multiple sprockets 705 connected by the chain 706 to rotate synchronously, causing the spiral air guide vanes 703 inside the cooling rod 701 to rotate at high speed. This guides external air into the cooling roller 702, continuously cooling it and ensuring the effectiveness of the cooling system. The plastic film is bonded to the cooling roller 702 in a wavy pattern, which can simultaneously cool both the top and bottom surfaces of the plastic film, ensuring uniform cooling and facilitating the initial cooling and shaping of the pressed plastic film. The cooling roller 702 also ensures uniform cooling, preventing problems such as localized thinning of the plastic film. After the plastic film is initially shaped, the air pump 902 delivers gas into the connecting pipe 903 and the U-shaped pipe 904. Multiple sets of evenly distributed air guides 905 facilitate a secondary cooling of the initially cooled plastic film, bringing it to a suitable temperature. The protective chamber 901 and hot air exhaust holes 906 provide protection for the device while allowing the hot air generated during the cooling process to be discharged upwards, ensuring the effectiveness of cooling inside the protective chamber 901. Once the film is wound to the appropriate size, it is cut by the electric cutter 10.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plastic film production cooling device, characterized by, include: Mounting frame (1), with support feet (2) fixedly connected to the four corners of the bottom of the mounting frame (1), and connecting plates (3) fixedly connected to the front and rear ends of the upper surface of the mounting frame (1). A first motor (4) is installed on the bottom right side of the front connecting plate (3), and a rotating roller (5) is connected to the power output end of the first motor (4). The first motor (4) passes through the connecting plate (3), and the rotating roller (5) is rotatably mounted on the mounting frame (1). A pressing mechanism (6) is arranged on the upper end of the rotating roller (5), and the pressing mechanism (6) is mounted on the connecting plate (3). Cooling roller mechanism (7): Two sets of cooling roller mechanisms (7) are installed in the middle of the connecting plate (3). A control panel (8) is installed on the left side of the front end of the connecting plate (3). A wind-cooling mechanism (9) is installed on the left side of the connecting plate (3). An electric cutter (10) is placed on the left side of the wind-cooling mechanism (9). The electric cutter (10) is installed on the connecting plate (3). An mounting plate (11) is fixedly connected to the left side of the connecting plate (3). A third motor (12) is installed on the left side of the mounting plate (11) at the rear end. A receiving roller (13) is connected to the power output end of the third motor (12). The receiving roller (13) is rotatably mounted on the mounting plate (11).

2. A plastic film production cooling device according to claim 1, characterized in that The film pressing mechanism (6) includes a mounting block (601) installed on the upper end of the connecting plate (3) on one side close to each other. An adjusting block (602) is slidably installed in the middle of the mounting block (601), and the mounting block (601) has a sliding groove adapted to the adjusting block (602). A pressure roller (603) is installed in the middle of the adjusting block (602).

3. A plastic film production cooling device according to claim 2, characterized in that The upper end of the mounting block (601) is screwed with a threaded adjusting bolt (604), and the bottom of the threaded adjusting bolt (604) is rotatably mounted on the adjusting block (602).

4. A plastic film production cooling device according to claim 1, characterized in that The cooling roller mechanism (7) includes a cooling rod (701) rotatably mounted on a connecting plate (3). A cooling roller (702) is fixedly connected to the outer surface of the cooling rod (701). A spiral air guide vane (703) is installed at the rear end of the inner cavity of the cooling rod (701). A second motor (704) is installed in the middle of the front end of the connecting plate (3). A sprocket (705) is installed at the power output end of the second motor (704) and at the front end of the cooling rod (701). A chain (706) is sleeved on the outer surface of the sprocket (705).

5. A plastic film production cooling device according to claim 4, characterized in that The cooling roller (702) has ventilation grooves in its inner cavity and is made of alloy steel.

6. A plastic film production cooling device according to claim 1, characterized in that The air cooling mechanism (9) comprises a protective bin (901) arranged between the cooling roller mechanism (7) and the electric cutter (10), and the protective bin (901) is fixedly connected to the connecting plate (3). The rear end of the connecting plate (3) is provided with an air pump (902) on the left side of the rear end. The power output end of the air pump (902) is connected with a connecting pipe (903), and the connecting pipe (903) penetrates through the connecting plate (3) and the protective bin (901). The other end of the connecting pipe (903) is connected with a U-shaped pipe (904), and a plurality of air guide openings (905) are equidistantly arranged on the side of the U-shaped pipe (904) close to each other.

7. A plastic film production cooling device according to claim 6, characterized in that A feeding port is formed in the middle of the protective bin (901), and a plurality of hot air discharge holes (906) are equidistantly formed on the upper surface of the protective bin (901).

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