Headbox sealing device

A pulp former comprising:

• the pulp former having a headbox having an upper slice lip and a lower slice lip;
• an upper forming fabric forming a first endless loop;
• a lower forming fabric forming a second endless loop;
• and
• wherein the upper forming fabric and the lower forming fabric define a joint run, and wherein the headbox is positioned to inject high consistency stock into the joint run formed between the first forming fabric and the second forming fabric;
• a first adjustable blade holder mounted to the upper slice lip and having a substantially planar first pulp facing surface;
• a second adjustable blade holder mounted to the lower slice lip and having a substantially planar second pulp facing surface which is parallel to the first pulp facing surface;
• a first flexible blade which extends between the first adjustable blade holder and the first forming fabric, the first flexible blade being mounted to the first adjustable blade holder by first pins which extend through the first flexible blade and the first adjustable blade holder;
• and
• a second flexible blade which extends between the second adjustable blade holder and the second forming fabric, the second flexible blade being mounted to the first adjustable holder by pins which extend through the second flexible blade and the second adjustable blade holder.

A method of attaching flexible blades to the lips of a pulp former, having a first blade holder mounted to an upper slice lip and having a substantially planar first pulp facing surface;

• a second blade holder mounted to a lower slice lip and having a substantially planar second pulp facing surface which is parallel to the first pulp facing surface;
• the method comprising the steps of:
• bonding with an adhesive a first flexible blade to the first pulp facing surface of the first adjustable blade holder;
• forming holes which pass through a portion of the first flexible blade and into a portion of the first adjustable blade holder;
• pinning the first flexible blade to the adjustable blade holder by passing pins through the portion of the first flexible blade and the portion of the first adjustable blade holder;
• bonding with an adhesive a second flexible blade to the second pulp facing surface of the second adjustable blade holder;
• forming holes which pass through a portion of the second flexible blade and into a portion of the second adjustable blade holder;
• and
• pinning the second flexible blade to the adjustable blade holder by passing pins through the portion of a second flexible blade and the portion of the second adjustable blade holder.