Raw material switching mechanism

Abstract

The invention belongs to the field of production equipment for hygiene products and particularly relates to a raw material switching mechanism comprising a machine seat. A fixed knife plate is fixed to the machine seat; a cutting edge channel is formed in the fixed knife plate; air cylinder supports are arranged on the two sides of the fixed knife plate; pressing air cylinders and splicing air cylinders are mounted on the air cylinder supports correspondingly; fixed plates are fixed to the extending ends of the splicing air cylinders; blades are mounted at one ends of the fixed plates, and heating elements are mounted at the other ends of the fixed plates; and the heating elements on the two sides of the fixed knife plate extend out along with piston rods of the splicing air cylinders to enable two layers of materials to abut against each other and be connected together in a fused mode. The raw material switching mechanism has the beneficial effects that the two layers of materials are heated through the heating elements so as to be connected together in a fused mode, the tensile strength of the junction is large; the phenomena of oblique sticking and folded sticking which are caused by manual tape-sticking are avoided; the possibility of scrapped products under the situation of manual tape-sticking without a shutdown is avoided; and the shutdown caused by poor sticking of tape or a splicing failure is avoided, and thus waste of time is avoided.

Description

technical field [0001] The invention belongs to the field of sanitary product production equipment, and in particular relates to a raw material switching mechanism. Background technique [0002] The splicing process of disposable hygiene product materials is generally to cut off the unrolled material, and then glue it to the new unrolled material. Generally, the double-sided tape is glued to the head end of the newly unrolled material and aligned, and the top is peeled off. Then pull the material into the splicer so that the position of the tape corresponds to the splicing position. When the detection device detects that the material is almost used up, the material is cut off, and then the new material is pasted on, and the line continues without stopping. This joint method has the following disadvantages: [0003] 1. It is easy to paste crookedly and wrinkle when pasting the tape, causing the material to deviate or wrinkle. [0004] 2. It is not easy to operate when pulli...

AI Technical Summary

Problems solved by technology

[0003] 1. It is easy to paste crookedly and wrinkle when pasting the tape, causing the material to deviate or wrinkle

[0004] 2. It is not easy to operate when pulling the new material with tape into the splicer without stopping the machine. It may cause the product to be scrapped if the material is not used up and the material being unwound is pasted.

[0005] 3. The material of disposable hygiene products is relatively soft and the tape is relatively hard. The non-woven fabric where the tape is attached is not easy to fold or the tape will prevent the material from passing through the folding plate and cause shutdown

[0006] 4. If the tape is not pasted well, the exposed tape will adhere to the tension wheel or traction wheel, causing shutdown, wasting materials and wasting time

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