Film calendering roller with self-cleaning function

Abstract

The utility model relates to a film calender roll technical field especially, it relates to a film calender roll with self -cleaning function. The utility model provides such a film calender roll with self -cleaning function, including bottom plate, servo motor, mounting bracket, sliding block, calender roll and conveying roller, servo motor is installed to bottom plate left side, the fixed connection of bottom plate has mounting bracket, the sliding mode of mounting bracket is provided with two sliding blocks, two sliding blocks are rotatably provided with calender roll, and the rotatably provided with conveying roller of mounting bracket lower part, and the output shaft of servo motor is connected with the pivot of conveying roller through the shaft coupling. Two scrapers are close to the surface of calender roll and conveying roller respectively, and the molten polymer residues adhered to the surface of calender roll and conveying roller are scraped in real time, in addition, the cleaning fluid is atomized and sprayed to the surface of calender roll and conveying roller through the infusion tube and by the spray head, helps further removing the residues, reduces the downtime, thereby promotes production efficiency and film quality.

Description

Technical Field

[0001] This utility model relates to the field of film calendering roll technology, and in particular to a film calendering roll with self-cleaning function. Background Technology

[0002] Film calendering is a process that uses mechanical pressure to roll materials into thin films, primarily used for manufacturing plastic films or other polymer films. The process typically involves heating the raw materials to a molten state, then passing them through rollers and a cooling system to uniformly thin the material and form a high-quality film.

[0003] Patent application publication number CN217414673U discloses a PVC calendering film calendering roll adjustment device, comprising a frame, a first motor fixed on the frame, a drive gear disk fixed to the output shaft of the first motor via a reducer, two driven gear disks symmetrically meshing with the outer surface of the drive gear disk, auxiliary rollers fixed at the axis of each driven gear disk, and the auxiliary rollers rotatably connected to the frame via bearings. A U-shaped plate is provided above the frame, and an adjustment mechanism for changing the height of the U-shaped plate is provided on the frame. Although the above patent adjusts the distance between the auxiliary rollers and the calendering roll body by setting an adjustment mechanism to facilitate the production of PVC calendering films of different thicknesses, during the calendering process, the film substrate may leave residues on the surface of the calendering roll body and auxiliary rollers due to stickiness or softening at high temperatures. Since the device does not have a cleaning function, the continuous accumulation of residues will lead to defects on the film surface and a decrease in the heat transfer efficiency of the roll surface, thereby reducing production efficiency and film quality.

[0004] In view of the existing patents, there is a need to provide a film calendering roll with a self-cleaning function. Utility Model Content

[0005] In order to overcome the shortcomings of existing patents, where residues may form on the surface of the calendering roller and auxiliary roller due to the film substrate’s stickiness or high temperature softening during the calendering process, and since the device does not have a cleaning function, the continuous accumulation of residues will lead to defects on the film surface and a decrease in the heat transfer efficiency of the roller surface, thereby reducing production efficiency and film quality, this utility model provides a film calendering roller with a self-cleaning function.

[0006] The technical solution of this utility model is as follows: a film calendering roller with self-cleaning function, including a base plate, a servo motor, a mounting frame, sliders, a calendering roller, a conveying roller, and a lifting mechanism. A servo motor is installed on the left side of the base plate, and a mounting frame is fixedly connected to the base plate. Two sliders are slidably arranged on the mounting frame, and the calendering roller is rotatably arranged on the two sliders together. A conveying roller is rotatably arranged at the lower part of the mounting frame. The output shaft of the servo motor is connected to the rotating shaft of the conveying roller through a coupling. A lifting mechanism is provided on the mounting frame to drive the calendering roller to lift and lower. It also includes a scraper, a mounting plate, nozzles, and infusion pipes. Two scrapers of different shapes are fixedly connected to the front side of the mounting frame. The two scrapers are in contact with the calendering roller and the conveying roller respectively. A mounting plate is slidably arranged on the mounting frame, and two infusion pipes are connected to the rear side of the mounting plate. Multiple nozzles are provided on the infusion pipes.

[0007] Furthermore, the lifting mechanism includes an electric push rod and a pulling frame. The electric push rod is mounted on the mounting frame, and the telescopic rod of the electric push rod is connected to the pulling frame. The pulling frame is connected to the slider and the mounting plate.

[0008] Furthermore, it also includes mounting brackets, guide pipes, and connectors. Mounting brackets are fixedly connected to both sides of the mounting brackets, and connectors are installed on the mounting brackets. The two connectors are connected together and connected to the guide pipe, which is used to transport coolant.

[0009] Furthermore, it also includes a limiting sleeve, which is installed on the mounting bracket.

[0010] Furthermore, it also includes a collection box, which is placed on the base plate.

[0011] Furthermore, the scraper is made of polytetrafluoroethylene (PTFE).

[0012] Compared with the prior art, this utility model provides a film calendering roll with self-cleaning function, which has the following beneficial effects: 1. Two scrapers are closely attached to the surfaces of the calendering roll and the conveying roll respectively, and scrape off the molten polymer residues adhering to the surfaces of the calendering roll and the conveying roll in real time. In addition, the cleaning liquid is sprayed onto the surfaces of the calendering roll and the conveying roll through the infusion pipe and the nozzle, which helps to further remove residues, reduce downtime, and thus improve production efficiency and film quality.

[0013] 2. Start the cooling equipment to deliver the coolant to the guide pipe. The guide pipe comes into contact with the calender roll, where heat exchange occurs, carrying away the heat on it, thereby effectively reducing the temperature of the calender roll and preventing it from deforming. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2This is a three-dimensional structural diagram of the present invention, the electric push rod, and the pulling frame, etc.

[0016] Figure 3 This is a three-dimensional structural diagram of the mounting plate, nozzle, and infusion tube of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the mounting bracket, guide tube, and limiting sleeve of this utility model.

[0018] In the attached diagram, the following are the reference numerals: 1-base plate, 2-servo motor, 3-mounting bracket, 301-slider, 302-calendering roller, 4-conveying roller, 5-scraper, 6-electric push rod, 7-pull frame, 8-mounting plate, 9-nozzle, 10-infusion tube, 11-mounting bracket, 12-guide tube, 13-limiting sleeve, 14-connector, 15-collection frame. Detailed Implementation

[0019] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0020] Example 1: A film calendering roll with self-cleaning function, please refer to... Figures 1-3 The system includes a base plate 1, a servo motor 2, a mounting frame 3, sliders 301, a calendering roll 302, a conveyor roll 4, and a lifting mechanism. The servo motor 2 is mounted on the left side of the base plate 1. The mounting frame 3 is fixedly connected to the base plate 1. Two sliders 301 are slidably mounted on the mounting frame 3, and the calendering roll 302 is mounted on the two sliders 301 in a rotating manner. The conveyor roll 4 is rotatably mounted at the lower part of the mounting frame 3. The output shaft of the servo motor 2 is connected to the rotating shaft of the conveyor roll 4 via a coupling. A lifting mechanism is provided on the mounting frame 3 to drive the calendering roll 302 to rise and fall. The lifting mechanism includes an electric push rod 6 and a pulling frame 7. The electric push rod 6 is mounted on the mounting frame 3, and the telescopic rod of the electric push rod 6 is connected to the pulling frame 7. The slider 301 is connected to the mounting plate 8 and also includes a scraper 5, mounting plate 8, nozzle 9 and infusion pipe 10. Two scrapers 5 of different shapes are fixedly connected to the front side of the mounting frame 3. The two scrapers 5 are in contact with the calendering roller 302 and the conveying roller 4 respectively. The mounting plate 8 is slidably mounted on the mounting frame 3. Two infusion pipes 10 are connected to the rear side of the mounting plate 8. Several nozzles 9 are set on the infusion pipes 10. A collection frame 15 is placed on the base plate 1 to collect waste liquid or residue generated during the cleaning process, so as to keep the working environment clean and environmentally friendly. The scraper 5 is made of polytetrafluoroethylene material. Polytetrafluoroethylene material has an ultra-low coefficient of friction, which can avoid scratching and damaging the surface of the calendering roller 302 and the conveying roller 4, and can resist the corrosion of cleaning agents.

[0021] When this device is needed, the film substrate is inserted through the gap between the calendering roller 302 and the conveyor roller 4. The servo motor 2 is started, and the output shaft of the servo motor 2 rotates, driving the conveyor roller 4 to rotate, thereby pulling the film substrate to move. At the same time, the electric push rod 6 is started, controlling the extension of the telescopic rod of the electric push rod 6 to move the slider 301 downward along the mounting frame 3, driving the calendering roller 302 to press down and contact the film substrate. The calendering roller 302 applies pressure to the film substrate. The conveyor roller 4 cooperates with the calendering roller 302 to uniformly calender the film substrate. During the calendering process... During the process, residues may form on the surfaces of the calendering roll 302 and the conveying roll 4 due to stickiness or softening at high temperatures. Two scrapers 5 are placed close to the surfaces of the calendering roll 302 and the conveying roll 4 respectively to scrape off the molten polymer residues adhering to the surfaces of the calendering roll 302 and the conveying roll 4 in real time. In addition, an external water pump is connected to the liquid delivery pipe 10. After the water pump is started, the cleaning liquid is sprayed through the liquid delivery pipe 10 and atomized by the nozzle 9 onto the surfaces of the calendering roll 302 and the conveying roll 4 to help further remove residues, reduce downtime, and thus improve production efficiency and film quality.

[0022] Example 2: Based on Example 1, please refer to... Figure 1 , Figure 2 and Figure 4 It also includes a mounting bracket 11, a guide pipe 12, and a connector 14. The mounting bracket 11 is fixedly connected to both the left and right sides of the mounting bracket 3. The connector 14 is installed on the mounting bracket 11. The two connectors 14 are connected together and communicate with the guide pipe 12. The guide pipe 12 is used to transport coolant. The mounting bracket 11 is provided with a limit sleeve 13 to ensure the sealing between the guide pipe 11 and the connector 14 and prevent coolant leakage.

[0023] During the calendering process, the coolant source is connected to the guide pipe 12 through the connector 14. The cooling equipment is started, and the coolant is delivered to the guide pipe 12. The guide pipe 12 comes into contact with the calendering roll 302, and heat exchange occurs, carrying away the heat on it, thereby effectively reducing the temperature of the calendering roll 302 and preventing it from deforming.

[0024] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A film calendering roll with self-cleaning function, comprising a base plate (1), a servo motor (2), a mounting frame (3), sliders (301), a calendering roll (302), a conveying roll (4), and a lifting mechanism. The servo motor (2) is mounted on the left side of the base plate (1), and the mounting frame (3) is fixedly connected to the base plate (1). Two sliders (301) are slidably arranged on the mounting frame (3), and the calendering roll (302) is rotatably arranged on the two sliders (301). The conveying roll (4) is rotatably arranged at the lower part of the mounting frame (3). The output shaft of the servo motor (2) is connected to the rotating shaft of the conveying roll (4) through a coupling. The mounting frame (3) is provided with a lifting mechanism for driving the calendering roll (302) to rise and fall. The characteristic feature is that: It also includes a scraper (5), a mounting plate (8), a nozzle (9) and an infusion tube (10). Two scrapers (5) of different shapes are fixedly connected to the front side of the mounting frame (3). The two scrapers (5) are in contact with the calendering roller (302) and the conveying roller (4) respectively. The mounting plate (8) is slidably installed on the mounting frame (3). Two infusion tubes (10) are connected to the rear side of the mounting plate (8). Multiple nozzles (9) are installed on the infusion tubes (10).

2. A film calendering roll with self-cleaning function according to claim 1, characterized in that: The lifting mechanism includes an electric push rod (6) and a pulling frame (7). The electric push rod (6) is mounted on the mounting frame (3). The telescopic rod of the electric push rod (6) is connected to the pulling frame (7). The pulling frame (7) is connected to the slider (301) and the mounting plate (8).

3. A film calendering roll with self-cleaning function according to claim 2, characterized in that: It also includes a mounting bracket (11), a guide pipe (12) and a connector (14). The mounting bracket (3) is fixedly connected to the left and right sides of the mounting bracket (11). The connector (14) is installed on the mounting bracket (11). The two connectors (14) are connected together and connected to the guide pipe (12). The guide pipe (12) is used to transport coolant.

4. A film calendering roll with self-cleaning function according to claim 3, characterized in that: It also includes a limiting sleeve (13), which is provided on the mounting bracket (11).

5. A film calendering roll with self-cleaning function according to claim 4, characterized in that: It also includes a collection box (15), which is placed on the base plate (1).

6. A film calendering roll with self-cleaning function according to claim 5, characterized in that: The scraper (5) is made of polytetrafluoroethylene.

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