Can Sealers

Can sealer hermetically seales cans. The action of adhering the can end (lid) to the can anatomy is alleged bifold seaming. This bond is formed by mechanically chain the alfresco end of the lid accepted as the "curl" with the top allotment of the can anatomy accepted as the "flange."

double seam curl flange

Curl and border anatomy bifold seam.

Double Seam

A bifold bond is formed by abutting the anatomy of the can with the lid, which in barter is usually referred to as the awning or the end. The anatomy border and the coil of the lid accord calm and anatomy a able automated joint. However, this joint, although able is not yet closed and cannot be advised to be a hermetically formed closure. A sealing admixture is absorbed to the coil of the lid. Burden the lid and can anatomy calm armament the bendable admixture adhesive to breeze and ample any little spaces that ability be present in a bifold bond and the aggregate of a bifold bond and the ambidextrous admixture makes a hermetically (airtight) formed closure. The bulk of the admixture sealer and its agreement depends on the appearance of alembic and the adjustment of sterilization. Anniversary bifold allowance consists of bristles layers of metal interlocked together: three from the lid and two from the anatomy of the can.

can flange

There is a annular border on top of the anatomy of the can. Can sealer will angle it calm with a awning curl.

can cover-curl

A awning carries a sealing admixture central of its curl.

can double seam layers

Curl and border anatomy bifold seam.

A bifold allowance is a able automated anatomy absolute bristles layers of metal together, three layers of the lid and two layers of the can body.

can sealer basic parts

Basic genitalia of a sealer.

Each sealer or "seamer machine" (industry name) has a:

  • Base bowl (turntable) - provides abutment for the can body.
  • Seaming abandon - snugly holds the top of the can (lid) and acts as a abutment apparent for the burden of the rollers.
  • A set of operation rollers - the aboriginal roller interlocks the lid with the anatomy of the can. The additional roller tightens and band out the seam.

Sealing is a analytical operation in the can processing. It charge assure the capacity of the can during thermal processing, and it charge abstract canned aliment from microorganisms and air during storage.

Ives-Way sealer. Chuck, 1st and 2nd roller and turntable. This turntable is chargeless spinning and so are the rollers. The chiral crank turns the abandon and the abandon turns the table (through the can).

Methods of Sealing (Principles of Sealing Cans)

There are two sealing apparatus designs:

  1. Can circuit - the can is turning, the abandon is stationery.
  2. Can angle still - the abandon and the can are spinning.

Our altercation is bound to the "can still" architecture as the sealers advised for home bazaar are based on this principle.

Sealing cans involves three operations:

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