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Automatic extrusion device

An automatic, feeding roller technology, applied in the field of plastic manufacturing, can solve problems such as difficulty in controlling the tension force of plastic films

Inactive Publication Date: 2017-05-31
NINGBO ZHENHAI XIANGAO ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an automatic extruding device to solve the problem that it is difficult to control the tension of the plastic film within a relatively constant range when the film is rolled up

Method used

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Embodiment 2

[0029] Such as Figure 4 As shown, the difference between the second embodiment and the first embodiment is only that the liquid inlet hole communicating with the cavity is not provided in the second embodiment, that is, no liquid can be filled in the cavity, but the rotating pins at both ends of the tension roller are connected from the strip The shape hole is paid out, and a counterweight block is threadedly connected to the output end of the rotating pin shaft, so that the counterweight block can be replaced.

[0030] According to the thickness and material of the film, when the film needs to have different tension, by changing different weights, the tension roller can have different quality, and the tension of the film will change accordingly.

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Abstract

The invention discloses an automatic extrusion device and relates to the field of plastic manufacturing. The automatic extrusion device comprises a support, a feeding roller, flattening rollers, an output roller and a drive motor driving the feeding roller and the output roller to rotate. The drive motor is in chain transmission with the feeding roller and the output rollers. The feeding roller is located between the flattening rollers, the feeding roller and the output roller are located above the flattening rollers, and the output roller is arranged on any side of the left side and the right side of the support. A set of lug plates which are arranged oppositely are fixed to the support. The feeding roller and the output roller are rotationally connected to the lug plates, strip-shaped holes are formed in the lug plates, rotating hinge pins matched with the strip-shaped holes are arranged at the two ends of each flattening roller, the rotating hinge pins are inserted into the corresponding strip-shaped holes, and the flattening rollers can slide up and down relative to the strip-shaped holes. According to the automatic extrusion device, tension rollers can be arranged into a floating state, a film is tensioned through the gravity of the tension rollers, the force subjected by the film is in a relatively constant state all the time, and therefore the tensile force of the film keeps constant.

Description

technical field [0001] The invention relates to the field of plastic manufacturing, in particular to an automatic extruding device. Background technique [0002] Plastic film is mainly made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, used for packaging, and as a film layer. Plastic packaging and plastic packaging products account for an increasing share in the market, especially composite plastic flexible packaging, which has been widely used in food, medicine, chemical and other fields, among which food packaging accounts for the largest proportion, such as beverage packaging , quick-frozen food packaging, cooking food packaging, fast food packaging, etc., these products have brought great convenience to people's lives. In the production process of plastic film, the plastic film after calendering needs to be rewound by automatic extrusion device. When rewinding the plastic film, in order to prevent the film from wrinkling, it is often ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H23/16
CPCB65H23/16B65H2301/51256
Inventor 孔珍珍
Owner NINGBO ZHENHAI XIANGAO ELECTROMECHANICAL
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