Air bubble film tensioning device

Abstract

The invention relates to an air bubble film tensioning device which comprises two mounting plates and multiple first tensioning rollers. First through grooves are vertically formed in the two mountingplates. Sliding blocks slide in the first through grooves, and the two ends of the first tensioning rollers are rotationally connected to the opposite sliding blocks on the two sides. A drive mechanism is arranged on the mounting plates and comprises linkage rods rotationally connected to the mounting plates and located between the two sliding blocks, second through grooves formed in the two endsof the linkage rod correspondingly, connecting rods arranged on the sliding blocks and a lifting assembly arranged on the mounting plates, wherein one end of each connecting rod is embedded in the corresponding second through groove. Connecting plates are arranged on the opposite sliding blocks on the two sides, second tensioning rollers are rotationally connected between the two connecting plates, and the cross sections of the second tensioning rollers are gradually enlarged from the two sides to the middles in the axial direction of the second tensioning rollers. By means of the scheme, airbubble films can be stretched and tensioned in the length direction and the width direction of the air bubble films at the same time, and the air bubble films can be flatly and compactly wound on winding rollers.

Description

technical field [0001] The invention relates to the technical field of air bubble film production, in particular to an air bubble film tensioning device. Background technique [0002] The bubble film produced by the bubble film blowing machine is light, flexible and has good cushioning performance. It has been widely used in the packaging and transportation industry for the outer packaging of fragile, easy-to-scratch, and moisture-prone objects or as box packaging The filler acts as a cushioning protection, which can effectively ensure the safety of the packaged items. [0003] In the production workshop of the air bubble film, there is a production process of winding the air bubble film. This process generally uses a winding machine, and the air bubble film is wound on the winding roller through the transmission and guidance of the conveying roller on the winding machine. To make better use of it in the next process. Before the air bubble film is rolled, it is often stret...

AI Technical Summary

Problems solved by technology

[0004] like Figure 4 , shown in the figure is a kind of air bubble film tensioning device, which includes a mounting frame 1 and a tensioning roller 2 fixedly connected to the mounting frame. The structure of the above air bubble film tensioning device is very simple, only the mounting frame and several The simple combination of tensioning rollers, this kind of air bubble film tensioning device can only have a slight stretching and tightening effect on the air bubble film, and has no adjustment function. After the air bubble film is wound, there is still a high probability of bending and cracking. Wrinkles, the air bubble film still cannot be wound flat and compact on the winding roller

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