公开(公告)号：US4135476A

公开(公告)日：1979-01-23

申请号：US847575

申请日：1977-11-01

Applicant: Josiah T. Duryea

Inventor： Josiah T. Duryea

IPC: B05C1/02 ,  B05C7/06 ,  B05C9/10

CPC classification number: B05C1/02 ,  B05C7/06 ,  B05C9/10

Abstract: A sealant applicator for applying a sealant to the countersink portion of a rivet bore in a workpiece includes an applicator head, a sealant supply, and a drive unit for moving the applicator head between the countersunk surface and the sealant supply. A sealant dauber is rotatably and adjustably mounted on the applicator head and is driven by a motor, also mounted on the head. A flexible applicator tip is fitted to one end of the dauber for receiving sealant from the sealant supply and applying it to the countersink surface. The sealant is supplied to the applicator tip from a reservior having an opening in which is located a sealant permeable member. Sealant is supplied to the reservoir from a sealant cartridge. A predetermined amount of sealant is passed through and is maintained above the permeable member before the applicator tip contacts the permeable member. When the applicator tip engages the permeable member a bead of sealant attaches to the tip. As the rotating applicator tip is removed from the reservoir opening, the sealant is sheared from the central portion of the permeable member, leaving a uniform annular bead of adhesive that is precisely positoned on the applicator tip. The applicator tip is then inserted in the rivet bore so that the tip surface engages the countersink surface and transfers the sealant to the countersink surface. The drive unit moves the applicator head, and thus the applicator tip, sequentially between three locations: a standby location wherein the tip is positioned adjacent and above the rivet bore; a workpiece engagement location wherein the tip engages the rivet bore; and a supply location wherein the tip engages the permeable member in the reservoir.

Abstract translation: 用于将密封剂施加到工件中的铆钉孔的埋头孔的密封剂施加器包括施用头，密封剂供应和驱动单元，用于在埋头孔表面和密封剂供应之间移动施用器头。 密封剂重量可旋转和可调节地安装在涂抹器头上，并由安装在头部上的电动机驱动。 柔性施用器尖端安装在用于从密封剂供应中接收密封剂并将其施加到埋头孔表面的试剂的一端。 密封剂从具有开口的储存器供应到施用器尖端，该开口位于可密封剂可渗透的构件中。 密封剂从密封胶盒供应到储存器。 在施用器尖端接触可渗透构件之前，预定量的密封剂通过并保持在可渗透构件的上方。 当施用器尖端与可渗透构件接合时，密封剂珠缘附接到尖端。 当旋转的施加器尖端从储存器开口移除时，密封剂从可渗透构件的中心部分被剪切，留下均匀的环形的粘合剂珠，其被精确地定位在施用器尖端上。 然后将施加器尖端插入铆钉孔中，使得尖端表面接合埋头孔表面并将密封剂转移到埋头孔表面。 所述驱动单元使所述施用器头部以及因此所述施用器尖端顺序地在三个位置之间移动：备用位置，其中所述尖端位于所述铆钉孔的相邻和上方; 工件接合位置，其中尖端接合铆钉孔; 以及供应位置，其中尖端接合储存器中的可渗透构件。