CN1075031C - 无衬标签分割方法和分割设备 - Google Patents

无衬标签分割方法和分割设备 Download PDF

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CN1075031C
CN1075031C CN96197974A CN96197974A CN1075031C CN 1075031 C CN1075031 C CN 1075031C CN 96197974 A CN96197974 A CN 96197974A CN 96197974 A CN96197974 A CN 96197974A CN 1075031 C CN1075031 C CN 1075031C
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coiled material
running roller
label
cutting
blade
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CN1201435A (zh
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约翰·E·特赖斯
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Moore Business Forms Inc
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
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    • B65C9/08—Label feeding
    • B65C9/18—Label feeding from strips, e.g. from rolls
    • B65C9/1896—Label feeding from strips, e.g. from rolls the labels being torn or burst from a strip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • B26D5/30—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier
    • B26D5/32—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier with the record carrier formed by the work itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/40—Controls; Safety devices
    • B65C9/42—Label feed control
    • B65C9/44—Label feed control by special means responsive to marks on labels or articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • B65H35/08—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with revolving, e.g. cylinder, cutters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/10—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with devices for breaking partially-cut or perforated webs, e.g. bursters
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F11/00—Coin-freed apparatus for dispensing, or the like, discrete articles
    • G07F11/68—Coin-freed apparatus for dispensing, or the like, discrete articles in which the articles are torn or severed from strips or sheets
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    • B65C9/1803—Label feeding from strips, e.g. from rolls the labels being cut from a strip
    • B65C2009/1834—Details of cutting means
    • B65C2009/1857—Details of cutting means two co-acting knifes
    • B65C2009/1861—Details of cutting means two co-acting knifes whereby one knife remains stationary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/512—Marks, e.g. invisible to the human eye; Patterns
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T83/9394—Helical tool

Abstract

一卷材(W)在输入和输出辊轮对(12，14；30，32)之间送进时用一位于输入和输出辊轮对之间的分割装置从该卷材(W)上切割下或拉断无衬标签。每一对辊轮都包括一与卷材的光滑面(S)紧抵的摩擦面，另一辊轮的表面为与无衬标签卷材(W)的粘胶面(A)紧抵的硅酮合成橡胶或等离子体不粘面。在切割方式下，一转动刀刃(42)正对一固定刀刃(40)切割该卷材而形成该标签。每切割一次后输入辊轮(12，14)反转，以便断开卷材(W)与固定刀刃(40)之间的粘连，然后正转而使卷材向前行进经过该切割位置后进入输出辊轮(30，32)，以便进行下一次切割操作。输出辊轮(30，32)不断把切割下的标签送进到一接受站。在拉断方式下，卷材(W)上冲孔，一位于输入和输出辊轮(12，14；30，32)之间的拉断棒(80)沿冲孔拉断该卷材(W)而形成该无衬标签。

Description

无衬标签分割方法和分割设备
技术领域
本发明涉及无衬标签的处理方法和设备，特别涉及把一面有粘胶的无衬标签从其卷材上分割下来的切割或拉断方法和设备。
现有技术
公知有多种分离或拉断连续公事表格的设备(例如见Reissue专利No.30398和美国专利No.3,741,451)以及把其上有可撕下纸片的普通标签从一折叠标签纸堆上拉断下来的设备，例如可见美国专利No.5,100,040和4,375,189。但是，把无衬标签从其一面为粘胶面、另一面为光滑面的标签卷材上切断下来提出了新的问题，而且分离或拉断连续公事表格或拉断其上有可撕下纸片的普通标签的典型设备不适合于分离无衬标签。
本发明概述
按照本发明，提供一种处理一卷材上的无衬标签的分割装置，该卷材一般从一卷无衬标签展开而成，该卷材的一面上有粘胶，另一面为光滑面。本发明装置把标签从该卷材上切割或拉断下来。无论是切割还是拉断，切割或拉断位置由标签卷材上预先印制的定时记号控制。例如，切割时，卷材上的定时记号控制切割线的位置。在从卷材上一张张拉断标签时，用定时记号启动拉断装置。因此，标签卷材上预先印制有定时记号，若使用拉断，还预先冲出与定时记号同步的孔。请注意，对于标签纸堆或在其中向前传送卷材的分割装置，不使用页边冲孔。
一般来说，该分割装置包括一对输入辊轮，它们紧压通过这两个辊轮的压区的标签卷材。上部辊轮为一高摩擦合成橡胶或人造磨石辊轮，以便紧压标签卷材的光滑面，而下部辊轮的表面或为硅酮合成橡胶，或为不粘等离子体，从而不会与标签卷材的粘胶面粘连。输入辊轮由第一电动机驱动，该电动机受一控制器的控制，从而在读到定时记号时，该控制器把输入辊轮停止在进行切割操作的位置上。位于输入辊轮下游的一对输出辊轮由独立于驱动输入辊轮的第一电动机的第二电动机驱动。这两对输入和输出辊轮之间有一切割装置，该切割装置包括一滚筒，该滚筒上装有一横向伸展的刀刃，该刀刃最好相对该滚筒的轴线稍稍呈螺旋形，该滚筒最好装在卷材的光滑顶面的一侧。一固定刀刃最好位于另一边而在卷材的下方。其上装有刀刃的滚筒可转动360°而切割卷材，也可来回振荡而一次次切割卷材。无论何种情况，由于可动刀刃呈螺旋形，因此可从卷材的一边切割到另一边。一润滑滚筒用来润滑该可动刀刃，防止粘胶积起在刀刃上。
本发明分割装置以切割方式工作时，同步驱动输入和输出辊轮，可动刀刃转动，从卷材的一边切割到卷材的另一边。为了切割，输入和输出辊轮在一位置上停止转动，以便在该位置上沿着卷材在与固定刀刃对齐的纵向位置上横向切割卷材。切割完后，输入辊轮稍稍反转，以便把暂时粘在该切割装置的固定刀刃上的卷材拉开，同时输出辊轮向前转动而输出切割下的标签。或者，可在切割后停止输入和输出辊轮而把切割下的标签保持在切割位置，然后输出辊轮编程成以第二转速转动，把切割下的标签传送到一接受装置而无需与输入辊轮配合。尽管切割滚筒可转动360°，但按照本发明，该切割滚筒也可在一零位与一切割位置之间来回振荡。
在拉断方式下，不使用其上有一刀刃的围绕枢轴转动的切割滚筒，而是用一光滑的拉断棒与冲孔卷材配合。输出辊轮可在检测到定时记号时加速，从而卷材碰撞拉断棒而沿着冲孔切断标签。
按照本发明一优选实施例，提供一种分割器，包括其间形成一压区的一对输入辊轮、其间形成一压区的一对输出辊轮和这两对辊轮之间的一分割件；还提供一种切断一卷材上的无衬标签的方法，该卷材的第一面不容易与其第二面上的粘胶粘接在一起，该方法包括下列步骤：(a)以第一方向送进该卷材的前部而使卷材穿过输入和输出辊轮对的压区并通过这两对辊轮之间的该分割件，(b)在分割件的上游位置检测卷材的一个表面上的定时记号，(c)随着周期性地检测到定时记号移动该分割件而抵靠该卷材，从而把该卷材分割成一张张标签。
按照本发明另一优选实施例，提供一种从一卷材上分割无衬标签的设备，该卷材的一面上有光滑涂层，另一面上有粘胶涂层，该设备包括：可围绕两平行轴线转动、其间形成一压区的一对输入辊轮，这两辊轮中的至少一个辊轮有一紧抵卷材的该光滑面的高摩擦表面，另一辊轮有一与卷材的粘胶面接触的不粘面；可围绕互相平行并与输入辊轮的轴线平行的两轴线转动的一对输出辊轮，其中至少一个辊轮有一与粘胶接触的不粘表面；这两对输入和输出之间、把卷材分割成无衬标签的一分割装置；一位于上述分割装置上游用于检测卷材上的记号并在检测到该记号时输出一信号的传感器以及按照该输出信号驱动该分割装置而形成无衬标签的装置。
因此本发明的一个主要目的是提供一种新颖、改进的分割装置和分割方法，用于将具有不同长度的不同类型的无衬标签从标签卷材上切断下来，从而使产量提高、可靠性提高、寿命延长。
附图的简要说明
图1为本发明一分割器的侧视示意图；
图2为输入辊轮的正视示意图；
图3为一切割滚筒上的切割装置的正视图；
图4和5分别示出螺旋形走向的刀刃的开始切割位置和切割结束位置；
图6简示出输入辊轮反转而断开切割下的标签与卷材之间的暂时粘合；以及
图7简示出以拉断方式工作的分割器。
本发明的最佳实施方式
各附图、特别是图1示出从一标签卷材W上形成一张张无衬标签的本发明分割器10。该分割器可以切割方式工作，也可以拉断方式工作。无论哪种方式，标签卷材的一面上预先印制有定时记号T，以便控制卷材的切割或拉断位置，这在下文交代。因此用定时记号可启动该分割装置。在拉断方式下，标签卷材W上有横向伸展的冲孔线，这些冲孔线在受拉时断开而形成一张张无衬标签。如图所示，卷材W最好由一卷卷材材料R展开而成。如图所示，该卷材W的底面为一粘胶面A，而其顶面为一光滑面，即涂有硅酮。当卷材卷成一卷时光滑面不会与粘胶面粘在一起。如前所述，标签纸堆不使用页边打孔。
分割装置10包括一对输入辊轮12和14，从而形成一供卷材W穿过的压区。这对辊轮可转动地装在一对相对的机架16上(图1中只示出一个机架)而用卡紧弹簧18保持在紧压卷材W的位置上。弹簧18套在辊轮12和14的端轴20和22以及一固定不动圆杆24上。该固定不动圆杆24使该弹簧固定在该组件上，同时便于取下辊轮12或14，以便调节压紧间隙或进行清洗。如图所示，一电动机M1装在侧部支架16上，其包括与辊轮12和14连接的皮带轮或皮带26，以便正反转动辊轮，这在下文交代。上部辊轮12最好为高摩擦合成橡胶或人造磨石表面，以便紧压卷材W的光滑的硅酮涂层面。下部辊轮14的表面为硅酮合成橡胶或不粘等离子体，以便不与标签卷材W底面上的粘胶A粘接。可以看出，卷材和输入辊轮的方向可反过来，从而卷材粘胶面朝上而与辊轮14接触，而卷材的光滑面朝下而与辊轮12接触。
同样，一对输出辊轮30和32位于输入辊轮12和14的下游，它们形成一压区，切割下的标签从中通过后流出分割器10。与输入辊轮一样，辊轮30和32用一卡紧弹簧34安装。输出辊轮30和32用另一电动机M2经一皮带轮组件36驱动。输出辊轮30和32的结构与输入辊轮12和14相同。
输入与输出辊轮之间有一滚筒组件37，其上装有一与滚筒38相对的固定刀刃40，滚筒38上装有一与滚筒38一起转动的刀刃42。刀刃40用作与转动刀刃42相对的刀砧，固定和转动刀刃40和42分别伸展在卷材W的上下两侧。滚筒38安装成可围绕在相对的支撑壁16上的轴线转动，并由另一电动机M3驱动。如图3所示，转动刀刃42与滚筒38的转动轴线形成一螺旋角。因此，若图1中的滚筒38顺时针转动，则转动刀刃42和固定刀刃40配合，从刀刃的高端(图3中左边)到刀刃42的低端(图3中刀刃42的右边)进行切割。因此，从卷材的一边切割到另一边，标签所受切割力因而减小。因此，要完成卷材的切割，必须从图1所示零位开始经图4所示初始切割位置直到图5所示全部切割位置一步步转动滚筒38。
滚筒38安装成可转动整圈360°，以便用一润滑滚筒50进行润滑。该润滑滚筒包括一油毛毡滚筒组件52，其外径在转动刀刃42扫过油毛毡滚筒52时稍稍接触转动刀刃的周边。油毛毡滚筒支撑在滚珠轴承上而可自由转动。用上方一杆54中的一连串滴油孔53滴下的油进行润滑。滚筒38也可安装成围绕其轴线作振荡运动。在标签长度较短时，最好使用振荡运动，以缩短切割周期。
如图1所示，一光阅读器60在定时记号T通过预定位置时用来检测定时记号。光阅读器60在检测到一定时记号时向一控制器C输出一信号，该控制器然后控制电动机M1、M2和M3的运转。
如图1所示，当卷材W同时伸展在输入和输出辊轮的两压区之间时，这两对辊轮分别由电动机M1和M2同步驱动。在检测到一定时记号T时，控制器停止电动机M1和M2的转动，以便进行切割周期。当电动机M3使切割滚筒38转动360°或振荡转动刀刃42时，刀刃42与固定刀刃40配合切断卷材W而得到预定长度的标签。切割后，控制器C使电动机M1反转，从而使输入辊轮12和14反转，以便断开卷材W与固定刀刃40之间的暂时粘连，同时重新开动电动机M2而正转输出辊轮而把切割下的标签输出分割器10。暂时粘连一旦断开，电动机M1正转，从而输入辊轮正转而使卷材C向前行进而通过切割组件和输出辊轮。因此，输出辊轮在送进时可以一与输入辊轮配合的转速转动，然后停止转动而使标签保持在切割位置上，在切割后以第二转速转动而把切割下的标签传送到一未示出的接受装置，从而无需与输入辊轮12和14配合。由于分开控制电动机M1和M2，输入辊轮和输出辊轮可按照预定时间间隔送进。
在图7所示拉断工作方式下，大致使用同样的装置。但在拉断方式下，转动刀刃用一拉断棒80代替。固定刀刃40可保持原位，也可用一边缘光滑的刀杆代替，向前行进的卷材冲撞该刀杆，同时转动的拉断棒不断进行切断。但此时卷材上须有横向伸展的冲孔，从而这些冲孔断开而从卷材上切断下一张张标签。在拉断方式下，在形成一张张标签时卷材的送进无需停止。即拉断工作可连续进行。此外，在拉断工作方式下，一旦检测到定时记号即可使用控制器加速转动输出辊轮而沿冲孔线从卷材上拉断标签。
上面结合当前来说最实用和最优选的实施例说明了本发明，但本发明并不限于上述实施例，还包括在权利要求的精神和范围内作出的各种修正和相当结构。

Claims (18)

1、在一分割器中切断一卷材上的无衬标签的一种方法，其中该卷材的第一面不容易与其第二面上的粘胶粘接在一起，该分割器包括其间形成一压区的一对输入辊轮、其间形成一压区的一对输出辊轮和这两对辊轮之间的一分割件；该方法包括下列步骤：
(a)以第一方向送进该卷材的引导部而使卷材穿过输入和输出辊轮对的压区并通过这两对辊轮之间的该分割件；
(b)在分割件的上游位置检测卷材的一个表面上的定时记号；以及
(c)随着周期性地检测到定时记号移动该分割件而抵靠该卷材，从而把该卷材分割成一张张无衬标签。
2、按权利要求1所述的方法，其特征在于，卷材上的标签靠冲孔线切断；且步骤(c)包括移动分割件而沿冲孔线拉断输入辊轮对与输出辊轮对之间的标签。
3、按权利要求1所述的方法，其特征在于，该分割件包括一刀刃，它安装成可围绕一轴线转动，其长度至少等于标签卷材的宽度；步骤(c)包括围绕所述轴线转动该刀刃而切割该卷材，从而从卷材上切割下一张张标签。
4、按权利要求3所述的方法，其特征在于，包括在沿卷材进行的两相继切割之间，该刀刃转动一整圈。
5、按权利要求3所述的方法，其特征在于，包括在沿卷材进行的连续切割之间，围绕所述轴线振荡该刀刃。
6、按权利要求3所述的方法，其特征在于，包括使该刀刃抵靠一润滑件而清洁该刀刃，从而至少减少标签上的粘胶在刀刃上的积累。
7、按权利要求3所述的方法，其特征在于，在从卷材上切割下每张无衬标签前停止送进卷材。
8、按权利要求7所述的方法，其特征在于，分割件包括一固定刀刃；还包括下列步骤：在从卷材上切割下一标签后，反转输入辊轮而以与第一方向相反的第二方向相对固定刀刃移动卷材。
9、按权利要求8所述的方法，其特征在于，包括：在以所述第二方向移动所述卷材的同时开动输出辊轮对以所述第一方向送进一切割下的标签。
10、按权利要求3所述的方法，其特征在于，分割件包括一固定刀刃，而该转动刀刃与所述轴线形成一螺旋角；包括下列步骤：在切割卷材之前停止送进卷材，然后正对所述固定刀刃围绕所述轴线转动该螺旋形刀刃，从而从卷材的一边连续切割到卷材的另一边。
11、从一卷材上分离无衬标签的设备，该卷材的一面为光滑表面，另一面为粘胶面，该装置包括：
可围绕两平行轴线转动、其间形成一压区的一对输入辊轮，这两辊轮中的至少一个辊轮有一紧抵卷材的该光滑面的高摩擦表面，另一辊轮有一与卷材的粘胶面接触的不粘面；
可围绕互相平行并与输入辊轮的轴线平行的两轴线转动的一对输出辊轮，其中至少一个辊轮有一与粘胶接触的不粘表面；
所述两对输入和输出辊轮之间、把卷材分割成无衬标签的一分割装置；
一位于上述分割装置上游用于检测卷材上的记号并在检测到该记号时输出一信号的传感器；以及
按照该输出信号驱动所述分割装置而形成无衬标签的装置。
12、按权利要求11所述的设备，其特征在于，该卷材在沿该卷材的相间距纵向位置上有横向伸展的冲孔，所述分割装置包括一可移向和移离卷材的拉断棒，从而沿冲孔把卷材拉断成无衬标签。
13、按权利要求11所述的设备，其特征在于，所述分割装置包括一固定刀刃和一围绕一轴线转动的刀刃，该转动刀刃与所述固定刀刃配合而把卷材切割成一张张无衬标签。
14、按权利要求13所述的设备，其特征在于，所述转动刀刃以一方向转动，从而在一圈圈转动时从所述卷材上相应切割下一张张无衬标签。
15、按权利要求13所述的设备，其特征在于，所述转动刀刃在零位与切割位置之间振荡，从而从卷材上切割下一张张无衬标签。
16、按权利要求13所述的设备，其特征在于，所述转动刀刃安装成与其转动轴线形成一螺旋角，从而所述转动刀刃与所述固定刀刃配合，从卷材的一边连续切割到卷材的另一边。
17、按权利要求13所述的设备，其特征在于，所述输入辊轮在从卷材上每切割下一张标签后反转而使卷材脱离该固定刀刃。
18、按权利要求17所述的设备，其特征在于，输出和输入辊轮对分别由输出和输入电动机驱动，在从卷材上每切割下一张无衬标签后开动所述输出电动机，以从该设备中送出该张无衬标签的方向转动输出辊轮对，同时开动所述输入电动机，使两输入辊轮反转，从而使卷材脱离固定刀刃。
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PT858422E (pt) 2001-09-28
EP0858422B1 (en) 2001-04-04
WO1997016369A1 (en) 1997-05-09
BR9611413A (pt) 1999-01-05
DE69612392D1 (de) 2001-05-10
CA2235582A1 (en) 1997-05-09
CN1201435A (zh) 1998-12-09
DE69612392T2 (de) 2001-10-31
EP0858422A1 (en) 1998-08-19
US5862968A (en) 1999-01-26
MX9803415A (es) 1998-11-30
NZ321813A (en) 1999-04-29
US5853117A (en) 1998-12-29
AU7523396A (en) 1997-05-22
AU708026B2 (en) 1999-07-29

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