Transverse stretching method and device thereof

Abstract

The present invention provides a transverse stretching method and a device thereof. The aim of the invention is to rectify flow of heating air and improve heating efficiency through equipped a shielding board on a conveying mechanism of a conveying belt-shaped member. According to the transverse stretching method and device of the invention, a first shielding board (30) and a second shielding board (31) which are equipped next to a clamping part (1) of a conveying mechanism (10) and are in a pair separate the heating air (13,14) that collide with the conveying mechanism (10) from the heating air (13,14) that collide with the belt-shaped member (20).

Description

technical field [0001] The present invention relates to a transverse stretching method and device, and particularly relates to a new improvement for improving heating efficiency by setting a shielding plate on a strip conveying mechanism to rectify the flow of heating air. Background technique [0002] At present, as such a transverse stretching method and apparatus used, for example, the structure disclosed in Patent Document 1 can be cited, and a method having, for example, Figure 4 The shown clamp unit 1 is used as a conveyance mechanism 10 of the clamp unit, which is composed of clips or the like for grasping a strip-shaped body such as a film or a sheet, which is used in a conventional transverse stretching device. [0003] The above-mentioned clamping part 1 is provided on the elongated holder 3, and a pair of first and second clamps for covering the upper and lower parts of the clamping part 1 are provided on the upper surface 3a and the lower surface 3b of the above-...

AI Technical Summary

Problems solved by technology

[0011] That is, if Figure 4 As shown, the heating air 13, 14 ejected from the first and second nozzle outlets 11a, 12a of the first and second nozzle bodies 11, 12 are clamped along the first and second clamping portions of the clamping part 1. The part cover 4,5 flows, and the heating air 13,14 ejected vertically from the above-mentioned first and second nozzle outlets 11a, 12a with respect to the strip-shaped body 20 is disturbed, and its direction is changed in a bent manner, so that The heating efficiency of the strip-shaped body 20 is lowered, and the prescribed transverse stretching of the strip-shaped body 20 may not be obtained in some cases.

[0012] In addition, a bearing (not shown) is provided on each clamping part 1 to make the operation smooth during the transportation, but the oil for lubricating the bearing may scatter along with the turbulence of the heating air 13, 14. If This oil adheres to the surface of the strip-shaped body 20, and the strip-shaped body 20 stretched in the transverse direction may become a defective product, and the yield may decrease.

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