An improved production process of plastic film heat sealing

Abstract

The invention relates to the technical field of plastic processing and particularly relates to a plastic film heat-sealing production improvement process. A material addition process step is implemented between process steps of plastic film heating and extrusion adhesion; the material addition process step is a step of placing plastic granules on the upper surface of a heated plastic film; the plastic granules are of a material identical to that of the plastic film; the diameter of the plastic granule is 2-3 times of the thickness of the plastic film; the plastic granules are uniformly falleninto a heating position of the plastic film under the action of an allocation disc in a rolling mode. By adopting the production improvement process, the plastic film is extruded by using adhesion rollers which are smooth in surface, the plastic granules are adopted as an adhesive to enhance the connection of two plastic films to be adhered before adhesion, and compared with a conventional heat-sealing process, the process avoids the consequence of roller adhesion, and the adhesion strength can be improved.

Description

technical field [0001] The invention relates to the technical field of plastic processing, in particular to an improved production process of plastic film heat sealing. Background technique [0002] Film bonding machine is a machine that bonds plastic films together, also known as: film splicing machine, heat sealing machine, film sticking machine, welding film machine, film ironing machine, laminating machine, etc. It can be divided into two categories: intermittent plastic film bonding and continuous film bonding machine. [0003] When using a film bonding machine to bond plastic films together, it is necessary to heat and melt the plastic films, and then extrude the plastic films to bond the plastic films, but there is a certain gap between the heating process and the extrusion process of the plastic films. Time difference, sometimes the plastic film has not been squeezed and has cooled down, which affects the bonding effect of the plastic film, and when bonding, there i...

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Problems solved by technology

[0003] When using a film bonding machine to bond plastic films together, it is necessary to heat and melt the plastic films, and then extrude the plastic films to bond the plastic films, but there is a certain gap between the heating process and the extrusion process of the plastic films. Time difference, sometimes the plastic film has not been squeezed and has cooled down, which affects the bonding effect of the plastic film, and when bonding, there is often dust between the plastic films, causing the bond to be weak, or to improve the bond strength, stick There are protrusions on the bonding roller, although this method has certain beneficial effects, but because the surface of the bonding roller is not smooth, it often causes the plastic film to adhere to the bonding roller, resulting in production errors

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