PVC plastic film processing flattening device capable of reducing pressure

Abstract

The invention discloses a PVC plastic film processing flattening device capable of reducing pressure in the technical field of plastic film processing equipment. The device comprises a mounting frame, a winding roller, a mounting sleeve, a flattening block and a moving rod, wherein an adjusting device is slidably mounted in an inner cavity of the mounting sleeve, the moving rod is slidably connected to the bottom end of the inner cavity of the mounting sleeve in an inserted mode, a pushing spring is fixedly installed between the moving rod and the adjusting device, and the bottom end of the moving rod is fixedly connected with the outer wall of the top of the flattening block. In the device, a moving block slides inwards, the moving block and a mounting block move upwards, the moving block is moved to a position below an upper set of check blocks, a distance between the adjusting device and the moving rod is increased, a degree of compression of the pushing spring is decreased, through automatic adjustment of the adjusting device, the pressure of the flattening block on a thin film wound on the outer wall of the winding roller is not large, the situation that due to the fact that friction force between the flattening block and the thin film is large, the thin film is difficult to wind by the winding roller is avoided, and the flattening block is also prevented from abrading the wound thin film.

Description

technical field [0001] The invention relates to the technical field of plastic film processing equipment, in particular to a flattening device for PVC plastic film processing that can reduce pressure. Background technique [0002] After the PVC plastic film is processed, the film will be rewound by the rewinding roller. In order to ensure that the film is rewound flat and that no air enters between the rewound films, the top of the rewinding roller is generally rolled by a flattening block. The film is pressed, and a spring is installed on the flattening block to provide pressure on the flattening block, so that the flattening block can also provide pressure on the winding roller as the diameter of the winding roller increases. However, as the winding The film of the roll gradually increases, which leads to the gradual increase of the overall diameter of the winding roller. Because the flattening block needs to press the film all the time, the flattening block will move, cau...

AI Technical Summary

Problems solved by technology

[0002] After the PVC plastic film is processed, the film will be rewound by the rewinding roller. In order to ensure that the film is rewound flat and that no air enters between the rewound films, the top of the rewinding roller is generally rolled by a flattening block. The film is pressed, and a spring is installed on the flattening block to provide pressure on the flattening block, so that the flattening block can also provide pressure on the winding roller as the diameter of the winding roller increases. However, as the winding The film of the roll gradually increases, which leads to the gradual increase of the overall diameter of the winding roller. Because the flattening block needs to press the film all the time, the flattening block will move, causing the spring to contract, and the spring contraction will increase the pressure on the flattening block. The pressure provided by the flattening block to the rolled film increases, resulting in the gradual increase of the friction between the flattened block and the film, making it difficult for the winding roller to rotate, and it is also easy to cause the flattened block to cause scratches on the film surface. Therefore, we propose a flattening device for PVC plastic film processing that can reduce the pressure

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