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公开(公告)号：US3745893A
公开(公告)日：1973-07-17
申请号：US3745893D
申请日：1971-08-26
CPC分类号： B31B70/00 , B31B70/826 , B31B2150/00 , B31B2160/10 , Y10T156/1309 , Y10T156/1339
摘要： A continuous strip or web of patch material is unwound from a reel by means of a pair of pull rolls. The patch material is conveyed to adhesive applying apparatus where adhesive is applied to preselected portions of one surface of the web. The web of patch material having the adhesive applied to selective portions of one surface is engaged by a vacuum roll by suction. The vacuum roll has patch severing apparatus that cuts preselected lengths of the web to form window patches having adhesive applied to selected portions of one surface. Envelope blanks are conveyed through a panel cutter mechanism where one or more windows are formed in the envelope blank at desired locations. The envelope blanks are conveyed with the inner surface facing outwardly by means of a plurality of transfer rolls. One of the transfer rolls is in abutting relation with the vacuum roll and the envelope blank is transferred to the vacuum roll from the transfer roll and is engaged to the transfer roll with one of the windows in the envelope blank in overlying relation with a patch on the vacuum roll. The vacuum roll and adjacent transfer roll exert a compressive force on the envelope blank and patch to adhesively secure the patch to the envelope blank. The envelope blank with one window patch secured thereto is thereafter conveyed by means of the vacuum roll to another transfer roll and where desired, to other patch applicator apparatus where adhesive is applied to the surface of the envelope blank around the periphery of the window. A patch severed from a second web is positioned in overlying relation therewith and adhesively secured to the envelope blank to thus provide an envelope blank with a plurality of window patches secured thereto.
摘要翻译： 通过一对牵引辊从卷轴上展开连续的带状或贴片材料网。 将补片材料输送到粘合剂施加装置，其中将粘合剂施加到幅材的一个表面的预选部分。 具有施加到一个表面的选择部分上的粘合剂的补片材料的腹板通过抽吸与真空辊接合。 真空辊具有切片装置，其切割幅材的预选长度以形成具有施加到一个表面的选定部分的粘合剂的窗口贴片。 信封坯料通过面板切割机构输送，其中在期望位置处在信封坯料中形成一个或多个窗口。 信封坯料通过多个转印辊以内表面向外输送。 转印辊中的一个与真空辊处于邻接关系，并且信封坯料从转印辊转移到真空辊中，并且与信封坯料中的一个窗口与贴片上的贴片相接合到转印辊上 真空辊。 真空辊和相邻的转印辊在信封坯料和贴片上施加压缩力以将贴片粘合地固定到信封坯料上。 随后将固定有一个窗口贴片的信封坯料随后通过真空辊传送到另一个转印辊，并且在需要时被传送到其它粘合剂施加到围绕窗口周边的信封坯料表面上的其它贴片施加装置。 从第二纤维网上切下的贴片定位成与其重叠的关系，并且粘合地固定到信封毛坯上，从而提供具有固定到其上的多个窗口贴片的信封毛坯。
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