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A method for detecting missing pieces of chopped materials

A detection method and short cutting technology, applied in metal processing and other directions, can solve problems such as reflection and inaccurate photoelectric sensor signals, and achieve the effect of reducing scrap rate, ensuring product quality and production efficiency, and reducing malfunctions

Active Publication Date: 2019-04-02
QUANZHOU HANWEI MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the material of the bottom roller of the chopped cutter, the surface color of the bottom roller is generally silver, and it will reflect light, which makes the signal of the photoelectric sensor inaccurate during detection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] Now, the present invention will be further described through specific embodiments.

[0011] The preferred detection method for missing pieces of chopped material of the present invention comprises the following steps:

[0012] (1) The outer surface of the cutter roller bottom roller of the material chopping mechanism is divided into multiple chopped material conveying areas on the surface of the cutter roller bottom roller according to the length of the chopped material, and the cutter roller bottom roller is for adsorption At the same time, the circumference of the outer circumferential surface of the bottom roller of the cutter roller is set to an integer multiple of the chopped material, and a roller shaft facing the bottom roller of the cutter roller is respectively set in the middle of each chopped material conveying area on the bottom roller of the cutter roller. A concave groove, the groove on the bottom roller surface of the cutter roller is coated with a layer ...

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PUM

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Abstract

The invention relates to the field of hygienic product manufacturing and provides a detecting method for piece missing of a short-cut material. The detecting method comprises the following steps that (1) a plurality of short-cut material conveying areas are divided on the outer surface of a bottom roller of a cutter roller of a material short-cut mechanism according to the length of the short-cut material, and a layer of opaque paint is smeared on an groove in the surface of the bottom roller of the cutter roller; (2) a photoelectric sensor is adjusted and arranged to align a detection beam of the photoelectric sensor with the groove in the surface of the bottom roller of the cutter roller; and (3) when detecting the groove in the bottom roller of a short-cutter, the photoelectric sensor transmits a detecting signal to a PLC of the whole production line, and the PLC judges existing of short-cut material missing according to the signal and can make corresponding action to deal with short-cut material missing in time. The problem that as for an existing material short-cut mechanism, material missing is not liable to detect due to the short-cutter sticks the short-cut material at the time of material short-cut is solved.

Description

technical field [0001] The invention relates to the technical field of hygiene product manufacturing, in particular to a method for detecting missing pieces of chopped materials. Background technique [0002] In the production process of sanitary napkins, diapers, and mattresses, materials are glued together to form products. According to the product process requirements, different materials have different lengths, and some materials need to be cut by a short cutter before being pasted on other materials. Since the material may stick to the chopping knife roll after being chopped by the chopping knife, resulting in the loss of chopped material on the bottom roller and the loss of material on the product, the missing detection is performed on the chopped material. Due to the material of the bottom roller of the chopped cutter, the surface color of the bottom roller is generally silver, and it will reflect light, which makes the signal of the photoelectric sensor inaccurate d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B26D5/34B26D5/28
CPCB26D5/28B26D5/34
Inventor 林秉正
Owner QUANZHOU HANWEI MACHINERY MFG