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Cutting mats and methods of making same

A mat-backed, cylindrical technology, applied in chemical instruments and methods, synthetic resin layered products, metal processing, etc., can solve the problems of increased waste ripples, end-user rejection of cutting mats, blemishes, etc.

Active Publication Date: 2018-07-31
QINGDAO BO FA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the cutting or scoring process is incomplete, these low spots result in blemishes or voids in the final corrugated product
These imperfections lead to increased waste waviness and can lead to end user rejection of cutting mats due to defects

Method used

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  • Cutting mats and methods of making same
  • Cutting mats and methods of making same
  • Cutting mats and methods of making same

Examples

Experimental program
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Effect test

Embodiment 1

[0053] Example 1 is a roving prepared by winding a woven carbon fiber (CF) material onto a cylinder under tension, with each layer applied at an angle such that the edges of the preceding wrap and the following wrap abut each other. The roving consisted of two layers of CF at 84 grams per square meter, two layers of CF at 290 grams per square meter and another two layers of CF at 84 grams per square meter. The layers are stacked by hand and cured in horizontal and vertical ovens. The resulting roving was 0.077 inches thick.

Embodiment 2

[0054] Example 2 is a roving made by a filament winding process using a series of 24 glass fiber strands wound under tension on a cylinder spaced 4 inches across. The roving consisted of two layers at 54 degrees relative to the central axis of the cylinder, followed by four additional layers wound at 85 degrees relative to the central axis of the cylinder. UV cure the layers. The resulting roving was 0.056 inches thick.

Embodiment 3

[0055] Example 3 is a roving prepared by winding a woven fiberglass (GF) material onto a cylinder under tension. Each layer is applied at an angle such that the edges of the preceding and following wraps abut each other. The roving consisted of two layers of GF at 84 grams per square meter, two layers of GF at 290 grams per square meter and two additional layers of GF at 84 grams per square meter. The layers are stacked by hand and cured in a horizontal oven. The resulting roving was 0.056 inches thick.

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Abstract

In various embodiments, a method of making a cutting mat backing includes creating a roving by wrapping a fiber material around a rotary cylinder under tension to form a plurality of layers. Each of the plurality of layers is angled with respect to a central axis of the rotary cylinder and the roving has a normalized axial flexural rigidity of from 2 lbf.in2 to 30 lbf.in2 over a beam width of 1 inch and a ratio of normalized circumferential flexural rigidity to normalized axial flexural rigidity of from 1:1 to 30:1. The method further includes infusing the roving with a polymer resin and curing the resin via electromagnetic radiation to form the cutting mat backing. Cutting mats including the cutting mat backing are also described.

Description

[0001] Cross References to Related Applications [0002] This patent application claims priority to US Provisional Patent Application Serial No. 62 / 222,487, filed September 23, 2015, and entitled "Rigid Cutting Mats and Methods of Making Same," which is hereby incorporated by reference in its entirety. technical field [0003] The subject matter described herein relates to cutting mats, and more particularly to cutting mats suitable for mounting on a rotating anvil and comprising a resin-impregnated roving backing. Background technique [0004] Rotary die cutters are used to perform cutting and scoring operations in many industries, including in the manufacture of corrugated products such as boxes and containers. Typically, a rotary die cutter conveys a continuously moving workpiece through a nip between a cutting die and a rotating anvil. The cutting die includes blades protruding from its surface to provide the desired cutting and scoring action to the workpiece. The rot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/32B26D7/20
CPCB26D7/204B29C70/32B29C35/0805B29C2035/0827B29K2075/00B29K2307/04B29K2309/08B29K2995/0082B29L2009/00B32B5/02B32B27/08B32B27/40B32B2262/101B32B2262/106B32B2307/546
Inventor R·R·沃克曼A·G·米勒J·C·罗格斯
Owner QINGDAO BO FA TECH CO LTD
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