A fully automatic plastic roll forming machine that can be precisely fixed in length

Abstract

The invention discloses a full-automatic plastics rolling moulder capable of precise length control. The full-automatic plastics rolling moulder comprises a material outlet which is connected with an extruder, a moulding unit, a cooling unit, a primary traction unit, a belt-type traction unit and a numerical control punching-off unit; the material outlet is arranged above the moulding unit; the cooling unit, the primary traction unit, the belt-type traction unit and the numerical control punching-off unit are sequentially arranged behind the moulding unit; and a space for free falling of products is preserved between the belt-type traction unit and the numerical control punching-off unit. After the technical scheme is adopted, traction during a production process is reliable; the products are conveyed stably; the lengths of the plastic products are precise; the product qualification rate can reach 99%; and the qualification rate is very high.

Description

technical field [0001] The invention relates to a full-automatic plastic roll forming machine which can be precisely fixed in length. Background technique [0002] At present, the power requirements of traditional plastic extrusion molding machines are very low, and the production efficiency is very low. Therefore, a rolling plastic molding machine has been designed for this industry. The patent number is 2007100280252, and the name is "rolling plastic molding machine". The efficiency of the rolling forming stage of this technology is not bad, but in the subsequent stamping stage, the product length fixing effect is very poor. The fixed length of the product is composed of a conveying roller and a length measuring device. The length reader of the length measuring device is installed on the conveying roller. The length of the product can be read by measuring the number of rotations of the conveying roller, but this patented technology conveys the product in a continuous strai...

AI Technical Summary

Problems solved by technology

[0002] At present, the power requirements of traditional plastic extrusion molding machines are very low, and the production efficiency is very low. For this purpose, a rolling plastic molding machine has been designed. The patent number is 2007100280252, and the name is "rolling plastic molding machine".

The efficiency of the rolling forming stage of this technology is not bad, but in the subsequent stamping stage, the product length fixing effect is very poor. The fixed length of the product is composed of a conveying roller and a length measuring device. The length reader of the length measuring device is installed on the conveying roller. The length of the product can be read by measuring the number of rotations of the conveying roller, but this patented technology conveys the product in a continuous straight line without interruption. When the length measuring device detects that the product has been conveyed to the set length, the subsequent The punching machine will immediately punch down to break the product, but the actual effect is very poor, and the length of the obtained product has a large deviation. Interference, resulting in uneven lengths of products, and a scrap rate of 30%-40%, which is a serious design flaw

In addition, since the above-mentioned patented technologies are all independent roller pairs to tighten the product, slipping often occurs during the conveying process, especially for the roller pair installed with a length measuring device. Once the roller pair responsible for length measurement slips, it will be serious. The accuracy of length measurement is affected, and waste products will also be generated. Therefore, the product delivery of the existing rolling plastic molding machine often slips, and the length of the produced products has a large deviation, resulting in a high waste rate.

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