Metal Three-Pieces Can Structure Design and Making Machine

Basic requirements: master metal three cans of structural features , the use of materials and processes
Teaching content: 1, cans , lids ; 2 , two double seamed ; 3 , three cans manufacturing process ; 4 , the design of metal cans
Important and difficult: metal three cans of the manufacturing process, steel drum production equipment
Hours Distribution : 4 hours
5.1 three cans of structure
Three cans from the tank body, tank bottom and lid of three parts. Cans upper edge and the lower edge of the lid and the cans were , cans and the bottom of the tank with the Department, for the edge of the tank body with certain specifications lid sealing, can be designed into necking structure .


( 1 ) Cans
① cans seams. Seam cans cans cans physique after forming weld ends ( sticky ) then seams.
② ring bars . When the diameter and height of the larger cans , to prevent occurrence of concave and convex cans , available in its circumferential direction of the rolling ring bars .
③ flanging . Tank body, the lower edge pulls out the appropriate order and the lid or bottom of the tank , curling sealed cans were dug out of the ends of the flange portion .
④ tank physique size of the design

( 2 ) the tank bottom and lid
① expansion ring . Role is to avoid cans due to temperature changes caused by permanent deformation , improve lid ( bottom ) of the mechanical strength , enabling cans curling structure from destruction , protecting sealing structure sealing performance , easy to identify spoiled food .
② rounded edges . A lid (bottom ) edge of the inwardly bent edge of the hook , so that the container body flange for crimp seal .
③ lid ( bottom ) plate size design
( 3 ) Easy-open structure . Lid and the bottom of the tank except that the lid has a deeper degree countersunk to secure the tank keys.
① volume open structure . Lid and the bottom of the tank except that the lid has a deeper degree countersunk to a fixed opening cans keys.
② easy open structure
5.2 three jars of the body of the manufacturing process and equipment


Three cans , if by different cans manufacturing process can be divided into soldering cans, adhesive cans, paper pick cans, laser welded tanks and welded tanks, and welded tank , also known as customary or resistance seam welding tank solder pot .


( 1 ) Cutting
( 2 ) three jars of body manufacturing process
① soldered cans manufacturing process
② Can resistance welding process
③ bonding process legal pot
5.3 double seamed
Two double seamed metal is widely used in cask body and lid ( bottom ) of the sealing methods, not only suitable for canning, canning and sealing of high-speed, high-volume , automated production , but also easy to ensure metal cans airtightness.

Two double seamed structure


① double crimping internal structure. Including body hook, cover hook, splice length , spliced ​​rate , cover hook and body hook gap clearance .
② double crimping crimping the outer structure includes thickness , bead width and degree countersink .
( 2 ) two heavy curling process
① seamer role of the main components
② double seamed formation process
③ double seamed quality inspection and test methods
④ Seamer Introduction (SBJ-120 Seamer )