Chain clip system in thin film stretching equipment, sliding block structure of chain clip system and method for stretching thin film

Abstract

The invention discloses a slide block structure applied to a chain clip system in stretching film equipment, which comprises two groups of slide block main bodies which are symmetrically arranged up and down, connecting holes are formed in the slide block main bodies, connecting pins are sleeved in the connecting holes, slopes are arranged at the upper end and the lower end of the surface of one side of each slide block main body, and the slopes are connected with the slide block main bodies. The widths of the slopes are gradually increased from one end of the sliding block body to the middle of the sliding block body, an oil storage groove is formed in the surface of the sliding block body, and the two ends of the oil storage groove communicate with the slopes at the upper end and the lower end correspondingly. According to the structure, the slopes with certain angles are arranged at the upper end and the lower end of the surface of the sliding block body, and the two slopes are communicated through the vertical oil storage groove, so that the sliding block body located on the lower portion can make contact with more lubricating oil, the lubricating effect is improved, friction is reduced, and therefore the service life of the sliding block body is prolonged.

Description

Technical field [0001] The present invention relates to the technical field of chain clamp system, in particular to a slider structure applied to a stretch film device, a slider structure thereof and a method of stretching the film. Background [0002] In the stretch film equipment, the transverse stretching machine (TDO) is one of the key equipment in the entire production process, and the chain cylindrium system is the key component that clamps the film and stretches laterally while moving the film forward, and the slider is one of the key components in the chain kluidium system. TDO stretching mechanism by chain cymbals, clamp arms, chain body, rail, support, link composition, chain trowel slider is one of the core components of the stretching equipment, its quality directly determines the highest operating speed and stability of the horizontal tension system and the whole line. [0003] At present, the total number of domestic double-pull production lines exceeds 400, accordi...

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Problems solved by technology

[0003] At present, the total number of double-drawing production lines in China is more than 400. According to the calculation of the medium and high-speed production lines using sliders accounting for 50%, and an average of 3,000 sets of sliders per production line, about 600,000 sets of sliders are used on the production line. According to the estimate of the spare 10%, the annual replacement market is about 60,000 sets, and the annual investment cost in the replacement of the slider is huge. The main reason for the replacement of the slider is that the slider is in contact with the outside during medium and high-speed operation. Friction occurs between the hard steel plates inside the track. As the use time increases, the slider is prone to damage, and lubricating oil needs to be added between the slider and the steel plate to reduce friction. In the existing chain clip system The slider will consume a lot of lubricating oil during the friction process. The reason for the consumption is, on the one hand, high temperature evaporation, and on the other hand, the high temperature generated by friction makes the lubricating oil deteriorate into waste oil.

[0004] The existing publication number is CN201092111Y, which provides a slider for injection molds, which is provided with a reticulated oil storage tank on the surface, although it can reduce the friction between the slider and the outside to a certain extent, but due to the Too many oil storage tanks on the surface of the slider reduce the strength of the slider. After a period of use, the oil storage tank area will shallow the depth of the oil storage tank due to friction, reducing the service life of the slider. At the same time, the current stretching system In the horizontal stretching system, the side of the slider facing the film needs to use clamps to clamp the film during the stretching process.

Therefore, the compression between the side of the slider facing the film and the hard steel belt is greater, so the wear on this side is more serious. The study of the structure of the failed slider shows that the failure of the slider is due to the failure of this side.

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