Cómo se fabrican las cajas de hojalata o las latas

In the tinplate can-making factory, how tinplate cans are made or produced, the following article shares the specific process.

Here is the brief process of each tin box tin can be made of: Raw materials –  Printing – Cutting – Stamping – Assembly – Packaging.

1) Raw materials: All tin boxes or cans are made of tinplate materials, how many materials need to be purchased is determined by the quantity of the tin box/cans order, and the dimension of each tin, with these two data, iron will usually be stored directly in the printing plant, the identification of the quality of iron, you can usually visual inspection method, to see whether the surface has scratched traces, whether the grain is uniform, whether there are rust spots, etc., with such micrometers can measure the thickness, bending by hand can feel its hardness.

(2) Printing: after the film and layout are given to the printer to prepare for printing, usually provide samples to the printer with color, in the printing process to pay attention to is to see whether the printing color palette keeps up with the sample, whether the register is accurate, whether there are stains, whether there are scars and so on. These issues are generally responsible for the printers can control themselves.

(3) Cutting/Slicing: printed iron material back to the factory can be cut according to the row of cutting bed, in the cut mattress attention is to see whether the operation of the workers according to the knife line to cut, whether the length together, uniform. Workers in the release of material whether scratch each other, etc., to be in the initial operation of the workstation to keep a watch on the quality.

4) Stamping/Punching: both in the punch press will be pressed into shape, this is the most important work to do cans, usually a can to be divided into many processes to complete. Tiandi lid of the two-piece cans of the general process for lid: open material – flying edge – rolled line. Bottom: open material – flying edge – pre-roll line – roll line.

The process of buckling the bottom of the lid process (sealing the bottom) of cans,

Lid: Slicing material – flying edge – rolled line Can

Body: open material – pre-bending – -shear angle – forming – buckle bone – punching body (buckle bottom) – Seal the bottom.

Bottom end: The process of the bottom is: open material

If the tin can is hinged, then the lid and body each have an additional process: making the hinge.

The stamping process is usually the largest loss of products, pay attention to whether the work operation is standardized, whether there are scratches on the surface of the product, whether there are batch seams in the rolled line, and whether the buckle bone position is fastened. The usual practice is to arrange the production of large goods sample confirmation before the production of large goods, and according to and according to the confirmed large goods sample production, which can reduce a lot of trouble.

5) Packaging: After the production of stamping, the packaging department is responsible for cleaning and assembly, into the plastic bag and boxing. This link is a closing work of the product, the cleanliness of the product is very important, so work before packaging to do a good job of cleaning, and then according to the packaging method for packaging, the style of more products must be the section number and box mark to good and section placement. The packaging process to pay attention to is to reduce as much as possible inferior products into the finished product, the number of boxes must be accurate.

Each of the above processes can have an impact on the quality of the tin box and tin can products, so pay attention to the production of samples, according to regulations, and mutual supervision to produce good quality.