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Sheet-shaped object cutting-off method

A sheet-like, knife-roller technology, applied in the directions of sending objects, function instructions, thin material processing, etc., can solve the problem of inability to accurately control the gap between the knife-roller and the anvil-roller in real time online, to improve safety and continuity, increase Service life, the effect of improving product quality

Active Publication Date: 2020-04-10
HUANGSHAN FUTIAN MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention aims to provide a sheet cutting method to solve the problem that existing methods cannot accurately control the gap between the knife roll and the anvil roll online in real time

Method used

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  • Sheet-shaped object cutting-off method
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  • Sheet-shaped object cutting-off method

Examples

Experimental program
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Embodiment

[0026] A method for cutting a sheet. While feeding the sheet between the knife roll 2 and the anvil roll 1, the knife roll 2 is rotated. During the rotation of the knife roll 2, it includes:

[0027] S1. Cutting process: In the cutting process, the knife roll 2 and the anvil roll 1 rotate relatively to cut off the sheet, and the sheet will generate a reaction force F to the knife roll during the cutting process.

[0028] S2. Detection process: In the detection process, the pressure sensor senses the magnitude of the cutting force, and transmits the sensed value to the control system. Wherein, the pressure sensor 15 is installed between two connecting elements 16, 17, wherein one connecting element is installed on the lower toggle of the gap fine-tuning link mechanism, and the other connecting element is connected with the moving plate for fixing the knife roller. The knife roller exerts a cutting force on the sheet, and the corresponding sheet exerts a reaction force equal to ...

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Abstract

The invention discloses a sheet-shaped object cutting-off method, which feeds a sheet-shaped object between a knife roller and an anvil roller while enabling the knife roller to rotate. The knife roller rotating process comprises a cutting-off procedure, a detection procedure, a comparison procedure and an adjustment procedure. In the cutting-off procedure, the knife roller and the anvil roller relatively rotate to cut off the sheet-shaped object, and the sheet-shaped object can generate a counter-acting force on the knife roller in the cutting-off process; in the detection procedure, a pressure sensor senses the magnitude of the cutting force and transmits the sensed value to a control system; in the comparison procedure, the control system compares the received value with a set value andsends out different responses according to a comparison result; and in the adjustment procedure, the position of the knife roller is adjusted in real time according to the response sent by the control system. According to the invention, the pressure sensor is used for detecting the cutting-off force of the knife roller for cutting off the sheet-shaped object, the cutting-off force is fed back tothe control system, the control system carries out comparison and analysis, and the gap between the knife roller and the anvil roller is adjusted through a servo motor so as to keep the cutting-off quality of the sheet-shaped object be consistent.

Description

technical field [0001] The invention relates to the field of manufacturing disposable sanitary products, in particular to a sheet cutting method. Background technique [0002] As one of the methods of forming through-holes on a sheet, a method called die-cutting using a cutting roller, such as Chinese patent application No. CN201521053947.5 discloses a model cutter device for absorbent articles, which The model knife roll cuts the sheet between the anvil rolls. [0003] However, when using the above-mentioned knife roller to cut the sheet, since the sheet needs different cutting gaps at different speeds to ensure the cutting effect, the traditional method of adjusting the gap between the knife roller and the anvil roller through the air cylinder is difficult to meet the requirements. High-precision adjustment needs; and the way of adjusting the gap between the knife roller and the anvil roller through the servo motor can realize micro-adjustment, but because such an adjustm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H35/08
CPCB65H35/08B65H2515/30B65H2511/22B65H2701/1924B65H2220/01B65H2220/03B65H2220/02
Inventor 龚志龙何长青
Owner HUANGSHAN FUTIAN MACHINERY CO LTD
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