Plastic film stretching and flattening device and plastic film online side section flattening method
A plastic film and film technology, which is applied in the field of plastic film stretching and flattening devices, can solve the problems of film rolling and wrinkling, and achieve the effects of reducing friction, avoiding secondary processing, and having obvious guiding effects
Active Publication Date: 2022-02-11
青岛海益塑业有限责任公司
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Problems solved by technology
[0006] In order to solve the above-mentioned technical problem of the film rolling and wrinkling caused by uneven friction distribution in the prior art, one of the purposes of the present invention is to provide a plastic film stretching and flattening device, which can realize film blowing and unfolding. One-time completion, avoiding secondary processing
Method used
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Effect test
Embodiment 1
[0065] There are four crossbeams in the film flattening mechanism, and three leading screws are arranged, and the three leading screws are connected with the upper and lower crossbeams respectively, and the other end of the leading screw is connected with the auxiliary frame.
[0066] The online side section flattening method of plastic film is:
[0067] The first step is to put the raw materials into the hopper, heat, plasticize and melt them through the extruder, and then enter the mold, extrude the ring-shaped blank in the ring-shaped forming section of the mold, and fill the blank with compressed air to form a film bubble;
[0068] The second step is to introduce the film bubble into the splint and enter the traction roller, and form a cylindrical film after extrusion;
[0069] The third step is to slide on the horizontal sliding bar through the knife holder chute with the knife, and the knife cuts one side of the tubular film into a single piece of film, and the single pi...
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The invention discloses a plastic film stretching and flattening device and a plastic film online side profile flattening method, and relates to the technical field of plastic film production and processing. It includes a hopper, an extruder, a mold, a splint, a traction roller, a horizontal cutting frame, a guide roller, a triangular frame, an involute guide roller and a coiling device, and a horizontal side cutting device is set on the operating platform of the traction roller Mechanism, the horizontal side cutting mechanism includes a horizontal slide bar and a knife holder chute with a knife. After passing through the guide roller, the film enters the involute guide roller located below the guide roller, and forms a film sheet through the involute guide roller; a film stretching and flattening mechanism is connected below the involute guide roller, and the film surface of the present invention is in the process of stretching and flattening. The friction force of the arc-shaped spreading rod is uniform, and the film is not easy to scratch, which avoids the crease phenomenon and the problem of multiple creases caused by the uneven friction force of each point of the trapezoidal display rack in the middle section.
Description
technical field [0001] The invention relates to the technical field of production and processing of plastic films, in particular to a stretching and flattening device for plastic films and an online side-cutting and flattening method for the film. Background technique [0002] In the blow molding process of plastic film, there are a variety of winding methods, the simplest one is to take the double-layer cylindrical film after the film bubble passes through the herringbone splint, and take the center or friction winding method to wind the finished roll. The other is to cut the double-layer cylindrical film of the film bubble through the herringbone splint on both sides to form a double-layer single piece, and then pass through the coiling device to coil into two finished rolls, or on both sides and in the middle It is cut into multiple pairs of double-layer single sheets, and is wound into multiple single-layer rolls or double-layer rolls by a coiling device. [0003] The f...
Claims
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IPC IPC(8): B65H20/02B65H23/26B65H18/10B65H23/198B29D7/01
CPCB65H20/02B65H23/26B65H18/10B65H23/198B29D7/01B65H2515/31
Inventor 梁秀通王朋涛李飞潘明波郝际臣崔涛
Owner 青岛海益塑业有限责任公司