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    • 3. 发明申请
    • METHOD AND APPARATUS FOR PRODUCING CORELESS ROLLS OF PAPER
    • 用于生产无纸卷纸的方法和装置
    • US20140084102A1
    • 2014-03-27
    • US13623959
    • 2012-09-21
    • Michael E. Techlin
    • Michael E. Techlin
    • B65H18/08B65H67/00B65H75/18
    • B65H19/2292B65H18/04B65H18/28B65H19/283B65H75/245B65H2301/418526B65H2301/41854B65H2405/461B65H2405/572B65H2511/172B65H2701/1924
    • A coreless roll of paper is formed by winding a web of paper around an elongated mandrel to form a roll of convolutely wound paper. The mandrel is formed from flexible and elastic material, and after the roll is wound, the mandrel is pulled longitudinally and withdrawn from the roll of paper to form a coreless roll.Alternatively, the mandrel can be pressurized to expand the mandrel radially before or during the winding of the web around the mandrel. After the roll is wound, the pressure in the mandrel is relieved so that the mandrel contracts radially, and the mandrel is withdrawn from the roll.A novel clasp is used to grasp and extract a tubular mandrel from the roll. The clasp includes a rigid shaft which is adapted to be inserted into a tubular mandrel. A plurality of clamping blocks are spaced radially outwardly from the shaft and are spaced circumferentially around the shaft. A plurality of actuators are engageable with the clamping blocks to move the clamping blocks radially inwardly toward the shaft whereby a mandrel can be clamped between the clamping blocks and the shaft.
    • 无芯卷纸通过将纸幅卷绕在细长心轴上以形成卷卷卷纸而形成。 心轴由柔性和弹性材料形成,并且在辊被卷绕之后,心轴被纵向拉伸并从纸卷中取出以形成无芯卷。 或者,可以在将纤维网围绕心轴缠绕之前或期间径向地将心轴加压以使心轴扩张。 在辊卷绕之后,心轴中的压力被释放,使得心轴径向收缩,心轴从辊中取出。 使用新颖的扣环来从卷筒中抓取和提取管状心轴。 该卡扣包括适于插入管状心轴中的刚性轴。 多个夹紧块与轴径向向外间隔开,并且围绕轴周向间隔开。 多个致动器可与夹紧块接合,以将夹持块径向向内朝向轴移动,由此可将心轴夹紧在夹紧块和轴之间。
    • 10. 发明申请
    • METHOD FOR PRODUCING CORELESS ROLLS OF PAPER
    • 生产无纸卷纸的方法
    • US20160214820A1
    • 2016-07-28
    • US15005506
    • 2016-01-25
    • Paper Converting Machine Company
    • Michael E. Techlin
    • B65H19/22B65H75/24B65H18/28
    • B65H19/2292B65H18/04B65H18/28B65H19/283B65H75/245B65H2301/418526B65H2301/41854B65H2405/461B65H2405/572B65H2511/172B65H2701/1924
    • A method of forming a roll of convolutely wound web material. The method includes applying adhesive to an elongated mandrel, winding web material around the mandrel to form a roll of convolutely wound web material, rotating the mandrel relative to the roll to smear the adhesive, and removing the mandrel from the roll. The smearing can be in a circumferential direction. The adhesive can be applied longitudinally along the mandrel. The adhesive preferably has a viscosity within the range of 3000 to 18,000 cps. Preferably, the method includes pulling the mandrel longitudinally before the step of removing the mandrel from the roll. The pulling can reduce the mandrel diameter and/or can increase its length. The rotating can be conducted before the pulling, during the pulling or during the winding. The rotating can be conducted before or during the removing. The web material can be bathroom tissue or kitchen towel.
    • 一种形成卷绕卷材的卷材的方法。 该方法包括将粘合剂施加到细长心轴上,将纤维网材料缠绕在心轴上以形成缠绕卷状纤维网材料的卷,使心轴相对于辊旋转以涂抹粘合剂,以及从辊中移除心轴。 污迹可以在圆周方向。 粘合剂可以沿着心轴纵向施加。 粘合剂优选具有在3000至18,000cps范围内的粘度。 优选地,该方法包括在将心轴从辊子移除的步骤之前纵向拉动心轴。 牵引可以减小心轴直径和/或可以增加其长度。 旋转可以在牵引之前,在牵引期间或在卷绕期间进行。 旋转可以在去除之前或期间进行。 网状材料可以是卫生纸或厨房毛巾。