Rolling forming die for disposable hygiene product

Abstract

A rolling forming die for a disposable hygiene product comprises a machine frame, a first roller and a second roller, wherein the first roller and the second roller are parallelly and fixedly assembled on the machine frame, the first roller comprises a middle shaft, movable cutter dies, adjusting sleeves and protective sleeves, the movable cutter dies, the adjusting sleeves and the protective sleeves are fixed on the middle shaft, a pair of adjusting sleeves is fixed in each movable cutter die, the adjusting sleeves are in a circular truncated cone shape, a layer of rubber ring is poured on the lateral side of each adjusting sleeve, the protective sleeve is fixed at one end of the movable cutter die, and the protective sleeve is fixed on the middle shaft through an expanding sleeve. By means of the technical scheme of the rolling forming die, service life of the die for single use is prolonged, and the adjusting sleeves provided with the rubber rings are arranged in the movable cutter dies and have the buffering effect, so that abrasion on a bottom roller and the cutter dies is reduced, and simultaneously the die cost and the production cost are reduced.

Description

technical field [0001] The invention belongs to the field of disposable hygienic products, in particular to a roll forming mold for disposable hygienic products. Background technique [0002] Disposable sanitary products include diapers, sanitary napkins, sanitary pads, paper bibs, breast pads, paper insoles, etc. The production of disposable sanitary products adopts rolling forming molds on the production equipment. The working principle is as follows: the upper roller is a forming knife , It is divided into forming knife edge part, protective cover part, central shaft part, the knife edge part is 0.01~0.05mm higher than the protective cover part, and the knife edge is sharpened; the lower roller is divided into a smooth and flat roller body part and a central shaft part. The upper and lower rollers are assembled on the same frame, the lower roller is fixed, and the upper roller can move up and down, pressurized by a spring (or air pressure, oil pressure) device, and the u...

AI Technical Summary

Problems solved by technology

In order to save more material costs, some cut the knife edge into several pieces and assemble it. Although this method saves materials compared with the previous method, the disadvantage is that it requires high processing technology and poor stability.

[0006] The above two processing methods still have some common defects: the protective sleeve, knife edge and center shaft of the forming knife are all firmly fitted, the protective sleeve cannot protect the knife edge, and there is a hard contact between the knife edge and the lower roller. , can not be buffered, resulting in either the knife hard eating the lower roll, or the lower roll hard damage the knife

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