Manufacturing process of metal money box

   Summary: First cut the tin-plated iron sheet material into squares, then roll the material into a cylindrical shape and then solder the formed longitudinal bonding wires to form a side seal, one end of the cylinder (iron tank bottom) and a circle The shaped end cap is mechanically formed with a flange and rolled and sealed (this is a double crimping seam) to form the can body; the other end is filled with the product and then the can cover is sealed. This is the basic step of making a metal money box.

This article mainly introduces the manufacturing process of the rolling can in the three-piece metal money box: (take the round can as an example)

1. Cutting: Use a shearing machine to cut the tinplate into a can body plate or a can lid and a can bottom blank according to the size required by the drawing. The manufacturing process of the can:

2. Cut corners and cuts: Cut off the upper and lower corners at one end of the rectangular blank, and cut the upper and lower gaps at the other end, so that there are two layers of sheets on the upper and lower ends of the can body seam Overlap to facilitate flanging and sealing. The chamfer can be cut into right-angle, pagoda, or obtuse-angle; the cut can be cut into a V-shape or U-shape.

3. Crimping: Crimping requires the cooperation of a crimping machine to roll the mouth image of the can body into a small arc to prevent the sharp edge of the can body from hurting people.

4. End folding: The end folding in the production of tinplate cans is to make the can hook each other when it is round, so that the two ends are folded to the side and the front with the end folding machine.

5. Rounding: Carry out on the third series machine, so that the upper wheel and the lower second roller rotate in the opposite direction. When the iron sheet passes through the middle, it is rolled into a cylindrical shape under the action of pressure and friction.

6. Flattening: After the end folds on both sides of the can are hooked together, they are flattened by a flatter to form a firm, sharp-edged seam.

7. Flanging: The methods of flanging include spinning flanging, bending flanging, and impact flanging. The purpose of the flanging is to seal the can and ensure the quality of the roll seal.

8. Bottom sealing: It is carried out on the can sealing machine, so that the can body and the bottom can be sealed by double crimping.

9. Rolling ribs: roll out the ribs on the tank body

10. The production of metal money box is all made of food-grade tin-plated iron box. The purpose is to improve the corrosion resistance of the metal money box container; at the same time, the electrochemical effect of metal can remove a small amount of iron in the metal iron box. Dissolve.

12. Production process of metal money box: stamping and forming. A punch of the punching machine is used to punch a flat plate into a cylindrical die so that the flat metal plate is deformed into a round iron can. The diameter of the metal can formed after the initial stamping can be reduced by applying a re-stamping process.

13. Cut the tin-plated iron sheet into a rectangular iron sheet, roll the blank into a cylindrical shape, and weld the joints at both ends longitudinally to form a cylindrical shape. One end of the cylinder and the round end cover are mechanically rolled and sealed, and the other end is put into the finished can cover to form a packaging tin. The container is composed of a can body, a can cover, and a can bottom. Generally, metal money box use a three-piece structure, while aluminum metal money box use two-piece can-making technology. Decorative patterns are printed using offset printing technology. This type of three-piece metal money box is not easy to hold candles. It is easy to leak. If you must use it, it is recommended to use the coating glue to prevent wax leakage. Usually, this three-piece metal money box also needs to prevent rust on the outer surface, and still needs to be processed by a printing process. When making a three-piece metal money box, pay attention to: cut corners and cuts before the end folding process; in the soldering process, wipe off the solder at the soldering place, and flanging after cooling, the can body is completed .

  In addition, the manufacturing requirements for the large-depth metal money box: the metal money box should be subjected to external surface coating, printing, internal surface coating, flange forming and closing of the open end. For food-grade metal money box, the outer surface coating, open end flange forming, cylinder corrugation and inner surface coating are carried out during the cleaning process, or the bottom of the metal can is made with pre-coated plates on a multi-mold press The tank lid is pressed with corrugated ribs to bear the internal and external pressure.

   metal money box is widely used in various industries because of its excellent printing performance and beautiful metallic luster texture retention performance. It is because the production process of metal money box has its particularity, coupled with colorful graphic printing and advanced Metal processing technology is deeply loved by consumers!

14. Environmental protection requirements for metal money box: When metal money box exist in the environment, they can be naturally oxidized and return to the original iron oxide state and return to nature. Therefore, the stacking of scrap metal money box can be decomposed by time, and Will not remain and cause environmental pollution. At the same time, the production of metal money box does not need to cut down trees, will not damage the ecological balance, and meet the international environmental protection product requirements. The use of metal money box is safer, more hygienic, and effectively reduces the amount of garbage, which has direct and obvious benefits for recycling operations, and is very popular.